sugar cane cleaning arrangement

专利摘要:
DEFLECTOR FOR A SUGAR CANE HARVEST, AND SUGAR CANE CLEANING ARRANGEMENT. A cleaning arrangement is disclosed for a sugarcane harvester with a cleaning chamber. A deflector body may include at least one deflection surface at least partially directed to a feed stream of cut cane and other materials from a feed train of a sugarcane harvester. The deflector body can be attached to the sugarcane harvester, such that the at least one deflection surface extends, at least partially, into the cleaning chamber. Since the feed train moves the feed stream into the cleaning chamber, the at least one deflection surface can deflect at least a portion of the feed stream within the cleaning chamber.
公开号:BR102015011143B1
申请号:R102015011143-6
申请日:2015-05-14
公开日:2021-03-02
发明作者:Dusk S. Mixon；Blain J. Cazenave；Mingyong Chen
申请人:Deere & Company；
IPC主号:

专利说明:

FIELD OF DISSEMINATION
[001] This disclosure refers generally to the harvesting of sugarcane, including the cleaning of leaves and fragments from a stream of cut pieces of sugarcane. RATIONALE OF THE DISCLOSURE
[002] To harvest sugar cane from a field, a sugarcane harvester can move along a field of sugar cane to gather sugar cane plants for further processing. Sugarcane plants can be cut from the ground by a base cutter set and then transported by means of feed rollers to a set of chopping drums to be chopped into cut pieces. The chopped plant material can pass from the chopper drums to a waste extractor, which can clean the stream of cut pieces of leaves, dirt or other waste. A stream of cut pieces can then pass from the extractor to a conveyor that can lift the cut pieces to a trailer wagon.
[003] Several existing sugar cane harvesters can use axial flow fans to generate air flow through the extractor to clean leaves, dirt and other tailings from streams of sugarcane cut pieces. Traditional extractor designs, however, can be relatively inefficient and expensive, and can result in significant losses of sugarcane cut pieces, as well as relatively poor tailings extraction. SUMMARY OF THE DISCLOSURE
[004] Deflectors, and related cleaning arrangements, are disclosed to separate cane cut pieces from other materials. According to one aspect of the disclosure, a deflector body may include a deflection surface facing a feed stream from a sugar cane harvester feed train. The deflector body can be attached to the sugar cane harvester such that the deflection surface extends, at least partially, into a cleaning chamber of the sugar cane harvester. When the feed train moves the feed stream into the cleaning chamber, the deflection surface can deflect at least a portion of the feed stream into the cleaning chamber.
[005] According to another aspect of the disclosure, a deflector body may include a deflection surface facing a feed stream from a feed train of a sugarcane harvester. The deflector body can be attached to the sugarcane harvester such that the deflection surface extends at least partially within a cleaning chamber of the sugarcane harvester. When the feed train moves the feed stream into the cleaning chamber, the deflection surface can deflect at least a portion of the feed stream along a deflected path within the cleaning chamber.
[006] According to yet another aspect of the disclosure, a deflector body may include a deflection surface facing a feed stream from a feed train of a sugarcane harvester. The deflector body can be attached to the sugarcane harvester such that the deflection surface extends at least partially within a cleaning chamber of the sugarcane harvester. When the feed train moves the feed stream into the cleaning chamber, the deflection surface can deflect at least a portion of the feed stream along a deflected path within the cleaning chamber. A hub cover for a sugarcane harvester fan can extend into the cleaning chamber, with at least a portion of the hub cover extending into the deflected path of the supply chain. Deflection of the portion of the supply chain by the deflector body may cause the portion of the supply chain to physically impact with the hub cover.
[007] A guide vane can be placed on a perimeter of the cleaning chamber. The guide vane may include a guide surface that, at least partially, faces the fan blades, the guide surface being oriented such that one of the rotating fan blades in a single rotation passes a higher end of the guide surface before passing an end lowest of the guide surface. Since part of the feed stream is carried by an airflow inside the cleaning chamber towards an exit from the cleansing chamber, the guide surface or an impact surface of the guide vane can deflect part of the feed stream away. the exit.
[008] The details of one or more implementations are described in the accompanying drawings and in the description below. Other aspects and advantages will become evident from the description of the drawings and the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[009] Figure 1 is a simplified elevation view of an example of a sugarcane harvester with a tailings extractor.
[0010] Figure 2 is an elevation view of certain components of the sugar cane harvester in figure 1, including a tailings extractor.
[0011] Figure 3 is a partial cross-sectional view of certain components of the tailings extractor in Figure 1.
[0012] Figure 4 is a partial cross-sectional view enlarged from a perspective similar to figure 3.
[0013] Figure 5 is an elevation view of an example of the fan assembly of the tailings extractor in figure 1, with cross-sectional views of certain components of the tailings extractor.
[0014] Figure 6A is a cross-sectional view of the tailings extractor in figure 1.
[0015] Figure 6B is an elevation view of the interior of the tailings extractor in figure 1, with a stream of cut pieces being processed by the tailings extractor.
[0016] Figures 7A and 7B outline velocity vectors of an example of air flow through the waste extractor in figure 1.
[0017] Figure 8 is a diagrammatic view of a cleaning method that can be implemented using the waste extractor in Figure 1.
[0018] Figure 9 is a perspective view of another configuration of the tailings extractor of figure 1, made from one side of the tailings extractor, with certain components removed to show a deflector body of the tailings extractor.
[0019] Figure 10 is a cross-sectional view of the tailings extractor configuration in Figure 9, including the deflector body.
[0020] Figures 11A through 11C are seen in top and bottom perspective and an exploded view, respectively, of an example of configuration of the deflector body of figures 9 and 10.
[0021] Figure 12 is a perspective view of the tailings extractor configuration of figure 9, made from the top of the tailings extractor, with certain components removed along a plane AA of figure 10, to show the deflector body .
[0022] Same reference symbols in the different drawings indicate the same elements. DETAILED DESCRIPTION
[0023] The following describes one or more examples of the disclosed extractor modalities and cleaning method for sugarcane harvesters as shown in the figures accompanying the drawings briefly described above. Several modifications to the examples of modalities can be considered by someone with talent in the technique.
[0024] As used herein, unless otherwise specified or otherwise limited, "fixed", "connected", "connected", "supported", "coupled", and similar terms, are used widely and they generally include both direct and indirect fixation, connection, connection, support, coupling, and so on. Also as used herein, unless otherwise specified or limited, a “body” may include a single-piece body, or a multi-piece body, with several or several parts being connected in various ways (for example, through welding devices, mechanical fasteners such as clamps, screws, flaps or retaining devices, and so on), to form the body of various parts.
[0025] As noted above, fan-based waste extractors can sometimes be used to clean the waste (for example, leaves, dirt, and other debris) from a stream of cut sugar cane plants. Generally, a vertical fan (or other) can be used to establish a pressure differential between an upper extractor hood and a lower cleaning chamber, and thereby generate a flow field (that is, an air flow of air brought in neighborhoods) within the extractor as a whole. Since the tailings may tend to be lighter or less dense than cut pieces of sugarcane stems (that is, “cut pieces of sugarcane”, this pressure differential and flow field can understand the raising the tailings into the hood for ejection, while allowing the cane cut pieces to fall through an outlet opening for further processing by the combine.
[0026] Generally, an objective of tailing extraction (or "cleaning") can be the removal of a relatively high proportion of tailings from a stream of plant material (and others) with relatively small removal of cut pieces of cane. In this regard, successful extraction can result in a highly clean stream of cane cut pieces from an extractor, where the “cleaning” of a stream of cut pieces can be seen as a proportion of an outflow that is pieces cane cut, not tailings. Similarly, successful extraction can also result in relatively few of the sugarcane cut pieces being ejected from the extractor with the tailings. In this regard, successful extraction can result in low loss ejection currents, where the “loss” of an extraction operation can be seen as a proportion of the ejected material that is cane cut pieces. As with other mechanized processes, it may be desirable to achieve highly clean output streams and low loss ejection currents, with relatively efficient system energy expenditure.
[0027] The extractor (and the cleaning method) of the current disclosure can include several aspects (and operations) that can contribute both individually and collectively to the successful cleaning of sugarcane. In certain embodiments, a vertical-axis fan assembly may be provided with fan blades and a hub. Fan blades can include twisted geometry along the blade profile from the hub to the blade tip. For example, the fan blades can be configured with an airfoil design, with a more aggressive orientation (that is, closer to the vertical) near the hub, a less aggressive orientation (that is, closer to the horizontal) near the tips of the blade and a smoothly shaped transition profile between the two. Among other benefits, this can provide more evenly distributed air flow within the extractor and, generally, reduced energy consumption for a particular cleaning operation. In certain embodiments, relatively small clearances can be provided between the blade tips and a fan housing (or other interior surface of the extractor), which can also contribute to more efficient and successful cleaning operations.
[0028] In addition, with respect to the fan assembly, a fan hub can be configured with a relatively large hub diameter, and a hub cover can extend from a lower plane (ie, intake) of the blades fan for the flow of plant material and other materials that penetrate the extractor. In certain embodiments, such a hub cover may be generally tapered (for example, a rounded cone with the tip extending into the material inlet stream), although other configurations are also possible. The wider cube and the extension of the cube cover into the inlet stream can, individually and collectively, tend to support a more uniform velocity field within the extractor, while also physically distributing the plant material more evenly around the chamber cleaning. These effects, individually and collectively, can further contribute to efficient and successful cleaning.
[0029] Several aspects in the extractor housing (and other bodies) can also be included to provide a smoother and more uniform air flow (or otherwise to condition flow through the extractor). In certain embodiments, for example, an extended cylindrical wall, a venturi tube, or both, can be provided to aerodynamically and vertically guide airflow through the extractor. In certain embodiments, several blades can be provided equal to, above or below the fan blades, to provide similar effects. In certain embodiments, several mounting configurations (for example, the mounting connection for the extractor hood) can be modified to reduce or remove shoulders or other flow impediments from inside the extractor.
[0030] In some modalities, several aspects can be arranged to serve as deflectors, to direct streams of cut pieces of cane and other materials through physical impact with portions of the streams. For example, a deflector body can be configured to extend into a cleaning chamber where a feed stream of sugarcane cut pieces and other materials enters the cleaning chamber. A deflection surface of the deflector body can be configured to deflect a portion of the cane cut pieces and other materials within the cleaning chamber, thereby affecting the interaction of the cane cut pieces and other materials with the field air flow. flow generated.
[0031] In some modalities a deflector body can be configured to direct deflected cane cut pieces and other materials along a deflected path that intercepts a fan cube cover. In this way, for example, the deflector body can direct a substantial portion of the cane cut pieces and other materials towards a physical impact with the cube cover, such that the cube cover physically separates the cane cut pieces and other materials, at least in part.
[0032] In some embodiments, guide vanes can be placed around a perimeter of the cleaning chamber to guide, at least partially, the air flow generated by the fan. The guide vanes can be configured such that when the cane cut pieces and other materials are moved towards an exit from the cleaning chamber by the air flow, the guide vanes physically deflect a portion of the cane cut pieces and other materials away from the exit.
[0033] As a result of these and other aspects, the disclosed extractor (and related method) may tend to produce cleaner output streams and tailings stream ejected from less loss than traditional extractor configurations, with reduced overall energy consumption. It will therefore be understood that the disclosed extractor (and related method) can facilitate improved cleaning of material streams and more cost-effective sugarcane harvesting.
[0034] As will become evident from the discussion here, the disclosed extractor and cleaning and method, can be used advantageously in a variety of adjustments and with a variety of equipment. In certain modalities, now referring to figure 1, the disclosed extractor and cleaning method can be implemented in relation to a sugarcane harvester 20. It will be understood, however, that the disclosed system and the method can be used to several other vehicles and non-vehicle platforms, including several sugar cane harvesters of different configurations or designs, than the sugar cane harvester 20 in figure 1.
[0035] Combine harvester 20 is shown in a side perspective view in figure 1, with the front of harvester 20 facing left. Consequently, certain components on the right side of the harvester 20 may not be visible in figure 1. The harvester 20 may include a main frame 22 supported on sets of rails 24 four or wheels (not shown) with a cab 18 to house an operator. A motor 26 can supply power to drive the harvester across a field and to power several driven components of the harvester 20. In certain embodiments the motor 26 can directly energize a hydraulic pump (not shown) and several driven components of the harvester 20 can be powered. powered by hydraulic motors (not shown) receiving hydraulic power from the hydraulic pump through a built-in hydraulic system (not shown).
[0036] A cane cutter 30 can extend to the front of the frame 22 to remove the tops with leaves from sugar cane plants (not shown) and a set of harvest dividers 32 (only the left side divider) 32 shown in figure 1) can then guide the rest of the sugar cane towards the internal mechanisms of the combine 20 for processing. When the combine 20 moves across a field, plants passing between the crop dividers 32 can be deflected downwards by an upper tipping roller 36 and a lower tipping roller 38, before being cut close to the base of the plants by a cutter assembly base 34 mounted on main frame 22. Rotating discs, guides or rackets (not shown) on the base cutter assembly 34 can also direct the cut ends of the plants up and back inside the harvester 20 towards a feed train which includes successive pairs of upper and lower feed rollers 38 and 40. Feed rollers 38 and 40 can be rotatably supported by a chassis 28 (for example, a welded extension of frame 22), and can be driven rotating by a hydraulic motor or other device (not shown) to transport the stems towards chopper drums 44 and 46 to prick for relatively uncut pieces forms.
[0037] The chopper drums 44 and 46 can rotate in opposite directions to chop the passing stems into cut pieces, and propel the cut pieces into a cleaning chamber 48 at the base of a primary extractor 50. The primary extractor 50 can use an energized fan (or similar device) to extract the tailings and debris from a cleaning chamber 48, while allowing the cane cut pieces to fall onto a loading elevator 52 with a front end located at the bottom of the cleaning chamber 48 The loading elevator 52 can then transport the cleaned cutting pieces upwards to a discharge location 54, below a secondary extractor 56, where the cutting pieces can be unloaded in a trailer car or other receptacle (not shown) .
[0038] In certain embodiments, one or more control devices, such as controller 58, may be included in the combine or otherwise associated with the combine 20. Controller 58, for example, may include one or more computing devices that include various devices, processors, and associated memory architectures. In certain embodiments, controller 58 may, additionally or alternatively, include several other control devices, such as several electro-hydraulic valves and hydraulic circuits, several electronic control circuits and devices (for example, several electronic power devices), and so on. onwards. In certain embodiments, controller 58, or another control device, may be in communication with several switches, controls, and other interfaces or input devices (not shown) in cabin 18, as well as with various sensors, actuators, or other devices ( not shown in figure 1) distributed throughout the harvester 20. In certain embodiments the controller 58, or other control device, may be a remote located control device, which communicates with several harvester devices and systems 20 through wireless means of communication, or by other means of extended distance communication.
[0039] Referring also to figure 2, several components of the extractor 50 are outlined. Generally, a base 74 of the extractor 50 can be supported by the chassis 28, such that the stream of plants and other materials from the chopper drums 40 and 46 (see figure 1) can flow through an inlet opening 76 and into the interior of the cleaning chamber 48. The base 74 may include a base ring 80 and side elements 78 that extend along either side of the ring 80, as well as a base cone 82 that generally extends downwardly from the cleaning ring. base 80 and around the cleaning chamber 48. Below the cleaning chamber 48 a cane basket 86 and an outlet opening 84 can be provided to guide cutting pieces that fall from the cleaning chamber 48 onto the elevator 52 ( see figure 1). The perimeters of the cane basket 86 and the base cone 82, respectively, may have generally inclined profiles to allow the elevator 50 to extend upwards at an appropriate angle (see figure 1) and to rotate from side to side, depending the location of the trailer wagon or other receptacle.
[0040] A fan housing 94 with a primary ring 96 can be seated above the base ring 80 and can generally surround portions of a fan assembly 124 (see for example, figure 3). The primary ring 96 can include several vanes 120 (see, for example, figure 3) and can generally support the hood 70. The hood 70 can include several tubular supports 72, as well as a closed end 70a and an ejection end 70b, a from which fragments can be ejected from the extractor 50. The primary ring 96 and the hood 70 can be configured to rotate collectively in relation to the base of the extractor 74, to properly orient the tailing stream from the end ejection valve 70b from the hood 70. For example, a chain drive (not shown) can be provided to rotate the primary ring 96 and thereby rotate the hood 70. Other mechanisms and configurations for rotating the hood 70 can, alternatively or additionally, be used. The base ring 80 can also support a cable seat 100 by means of a support ring 98 to support a cable (not shown) to support the elevator 52.
[0041] Referring also to figure 3, several internal aspects of extractor 50 are outlined. For example, an inner ring 108 can be provided inside the extractor 50, the ring 108 of which can generally extend downwardly from the primary ring 96 within the base cone 82, to define an extended cylindrical wall within the cleaning chamber 48. As discussed in greater detail below, this inner ring 108 can assist in aerodynamically placing airflow within the cleaning chamber 48, while also providing a more evenly distributed and more generally vertical velocity field.
[0042] In certain embodiments, the inner ring 108 (or a similar aspect) can be further profiled or configured to provide a venturi tube inside the cleaning chamber 48. For example, a profiled inner ring 108a can, alternatively or additionally, be provided , which can define an axial flow profile that is wider at the top and bottom, as outlined, than in the middle. In this way, air flow through ring 108a can be accelerated through the medium portion of the reduced area, thereby creating a more strongly vertical stream in an aerodynamic manner, more uniform and more vertical, for the separation of tailings from sugarcane cut pieces. of sugar. It will be understood that several other configurations may also be possible to provide such a venturi profile within the cleaning chamber 48.
[0043] In certain embodiments a relatively smooth junction 110 between the inner ring 108 and the primary ring 96 can be provided, to provide a substantially straight flow path (for example, generally without step) for air flow through the extractor 50. Referring also to figure 4, for example, where the inner walls (and consequently the flow area) of the cleaning chamber 48 just below the primary ring 96 is defined by the base ring 80, a shoulder (or step) 80a should be extend into the airflow upwards, between the base ring 80 and the primary ring 96. This could cause less aerodynamic and more turbulent airflow, as well as the physical impediment to moving material provided by the shoulder itself 80a. In the outlined embodiment, however, the inner ring 108 and the primary ring 96 can generally have the same radial dimensions at the junction 110 between rings 108 and 96. Consequently, there can be relatively small impedance of air flow at the junction 110 and, in a way corresponding, a more aerodynamic, more vertical, and less turbulent flow field.
[0044] Primary ring 96 and related components can be mounted to base 74 in several ways. For example, the support ring 98 can be supported by the base ring 80 and can, in turn, support a flange 114 of the primary ring 96. In certain embodiments, the flange 114 can be slidably seated above the support ring 98, such as that the primary ring 96 and the hood 70 can rotate, as necessary, with respect to the ring supporting 98 and the base of the extractor 74. The primary ring can further extend through the interior of the supporting ring 98 and may include a connector 140 (for example, a mounting for a screw and a pipe connection) to secure the support ring 98 to the base. In certain embodiments, several access holes 138 may be provided in the base ring 80 to access the connector 140 (and thereby secure or detach the primary ring 98) from the outside of the base ring 80.
[0045] A relatively smooth joint 122 similar to joint 110 can also be provided between the primary ring 96 and the hood 70 to further streamline the air flow through the extractor 50. Referring again to figure 3, for example, a flange 116 can be provided on primary ring 98. Flange 116 can slide a mounting ring 118 on which the hood 70 can be seated. As outlined in figure 3, the mounting ring 118 can be supported by the flange 116, but it may not extend inwardly along the flange 116 after the inner wall of the primary ring 96. Consequently, at junction 122, between the mounting ring 118 and the flange 116 of the primary ring 96, there may not be a step or shoulder that extends inward to prevent the flow of air (and material) through the extractor 50 and the air (and material) may be able to expand further gently out through junction 122 and into the hood 70 for ejection.
[0046] Several other aspects can also be included. Still referring to figure 3, several instances of guide vanes 120 can be provided to guide an air flow through the extractor 50 and, in some configurations, to deflect cane cut pieces and other materials that are carried by the air flow. In the outlined embodiment, the vanes 120 can be formed as part of the primary ring (or mounted to the primary ring) 96, can generally be placed below fan blades 128 and can be angled evenly against the rotation of the fan assembly 124. As with several other aspects, this configuration can tend to provide a more uniform, aerodynamic, and vertical air flow, which can lead to more effective and efficient tailings extraction. In addition, with the guide vanes 120 tilted against the rotation of the fan assembly, as discussed in more detail below, the guide vanes 120 can physically impact cane cut pieces and other materials when the cane cut pieces and other materials move upwards towards the hood along the perimeter of the cleaning chamber 48. In this way, for example, the guide vane 120 can deflect back, towards the cleaning chamber 48, the cane cut pieces that could otherwise slide afterwards from the tips of the fan blades 128 into the hood 70.
[0047] Other configurations of the reeds 120 (and other reeds) may also be possible. In certain embodiments, other blades (not shown) may alternatively or additionally be included in other locations or on other aspects of the extractor 50. For example, in addition to, or as an alternative to, the outlined 120 blades, a set of blades can be supplied above the fan blades 128 (for example, inside the hood 70 or over an extension above the primary ring 96). In certain embodiments, the blades 120 (or other blades) can be angled with the rotation of the fan assembly 124, they can vary in orientation from vane to vane (that is, they may not be uniformly angled) or they may otherwise be vary from the configuration example outlined in figure 3.
[0048] In certain embodiments, several slots (not shown) can also be provided, which can also guide and direct airflow into and into the cleaning chamber 48. Various slit orientations may be possible, including vertical, horizontal , and several angled orientations. In certain modalities, the different cracks can be oriented in a uniform way (for example, with uniform angles to the vertical). In certain modalities cracks of several different orientations can be used together.
[0049] Still referring to figure 3 and also referring to figure 5, the fan assembly 124 may include a hub 126 that supports several fan blades 128. In certain embodiments the fan blades 128 may include a twisted geometry along of the blade profile from the blade portion 128a next to the hub 126 to the tip of the blade 128b. For example, the fan blades 128 can be angled more aggressively (ie, closer to the vertical) in the portion 128a next to the hub) less aggressively (ie closer to the horizontal) at the tips of the blade 128b , with a smooth transition profile between the two. In certain embodiments the blades 128 may include an airfoil profile, in which the blades 128 have a curved profile at each radial distance from the cube 128 with the portion 128a next to the cube 126 showing a generally more aggressive profile (for example, more curved) and with the blade tips 128b having a generally less aggressive profile (for example, less curved. In certain embodiments, a relatively narrow gap 130 between the fan blades 128 and the fan housing (for example, the primary ring 96) Among other benefits, these diverse designs can provide more balanced airflow and reduced energy consumption during operation of fan assembly 124, as well as less loss of cane cut pieces after fan blades 128 and for interior of the hood 70. (To observe, the blades 128 in figure 3 are oriented out of the plane of the cross section of figure 3 and, therefore, do not appear m extends completely to the edge of the indicated gap 130. It will be understood that a similar gap (not labeled) between blades 128 and the housing can be obtained at each point (or a subset of points) along the path of the fan blades 128 inside the housing.
[0050] In certain embodiments, a relatively large cube 126 and related components can be provided. For example, hub 126 may include a relatively large body diameter 126a (for example, approximately 20 inches) and a spindle 134 with a relatively wide diameter 134s ( ) (For example, approximately 10 inches). These relatively large diameters 126a and 134a can individually or collectively contribute to a more uniform flow of air and material and generally improved extractor performance. It will be understood that other diameters 126a and 134a may be possible, including diameters 126a, 134a that are larger or smaller than the examples of dimensions noted above.
[0051] In certain embodiments, a cube cover 132 of different configurations can be included. In certain embodiments, the hub cover 132 may include a rounded tapered profile (as outlined in the various figures) although other configurations are also possible. In certain embodiments, the hub cover 132 may extend a relatively large distance downward from a lower plane (or generally an “inlet”) 136 of the path of the fan blades 128 into the cleaning chamber 48. Therefore For example, in the outlined embodiment the hub cover 132 may extend one third of its length 132a, or more, after the lower edge of the primary ring 96 (i.e., junction 110) and into the inner ring 108. As noted above , several geometries for blades 128 may be possible. In this way, the extended profile of the blades 128 may not necessarily trace a true geometric plane at the lower end (or inlet). In light of this, it will be understood that an intake plane of a set of fan blades 128 may include a true geometric plane aligned with a lower (or other) point along the fan blades 128, or another surface defined by the lower contour ( or other) of the rotating blades 128.
[0052] Referring also to figures 6A and 6B, certain effects of the aspects and designs noted above on the flow of cut pieces of cane and tailings through extractor 50 are outlined. As also described above, the fan assembly 124 can rotate around a vertical axis (e.g. axis 124a) to create a pressure gradient and velocity field within the cleaning chamber 48 and the hood 70. Referring in particular to the Figure 6B, this can bring cut pieces (thicker, darker lines) and tailings (thinner lines) from the inlet opening 78 into the cleaning chamber 48, for separating the cut pieces from the tailings. The heavier (or more dense) cutting pieces may tend not to be brought into the hood and due to the momentum of the flow of cutting pieces, they can travel through the cleaning chamber 48 to impact a retaining plate 88 and then fall into the cane basket 86 and out of the outlet opening 84. In contrast, the lighter (or less dense) tailings may tend to be brought after the fan blades 128 into the hood 70, then ejected from the ejection end 70b of the hood 70.
[0053] As noted above, several aspects of the disclosed tailings extractor 50 (for example, hub cover 132, airfoil fan blades 128, wider hub 128 and spindle 134, inner ring 108, small blade clearance 130, and so on, can tend to create a more uniform and more generally vertical velocity field for the air and material that moves through the extractor 50. As can be seen in figure 6B, this can result in a generic way in a relatively equal distribution of material at various locations within the cleaning chamber 48. For example, referring to the annular flow region surrounding the hub 132 below the lower plane 136 of the path of the fan blades 128, it can be seen that the tailing material can be relatively evenly distributed throughout most of the chamber 90. This can generally result in better lifting of the tailings into the hood 70 by means of the fan assembly. to 124, while also generally less loading of cane cut pieces into the hood 70 by means of agglomerated tailings masses. For example, a balanced distribution of material within the chamber 90 may tend to expose a larger surface area of the material to the air flow resulting in better lifting of lighter material (for example, into the hood 70) by the air flow. In addition, a balanced distribution of material within the chamber 90 may tend to reduce the agglomeration of tailings and cut pieces together. Consequently, fewer cut pieces can be loaded upwards (i.e., into the hood 70) as part of larger tailings agglomerates.
[0054] In part, the more balanced distribution of material within the cleaning chamber 48 may result in the relatively large hub diameter 134a and the extension of the hub cover 132 into the plant material inlet stream, and the like. For example, the extension of the hub cover 132 into the cleaning chamber 48 may tend to create an atmosphere of high pressure in the chamber, while also tending to reduce air voids and recirculation in the chamber by physically redirecting the air flow and the cane flow. In configurations in which cube cover 132 extends directly into an inlet flow path for tailings and cane cut pieces, cube cover 132 can also physically interact with (i.e. physically impact) the material which enters, to further distribute the material around chamber 90, thereby increasing the cleanliness of the outlet chain and reducing the loss of cleanliness. For example, in Figure 6B it can be seen that the hub cover 132 can be configured to extend generically to the center of an inlet flow path defined by the limit flow paths 142. Similarly, inlet opening 76 of the cleaning chamber 48 can be configured to generally direct an input current into the cleaning chamber 48 along a path that directly intercepts hub cover 132. Consequently, not only can hub cover 132 affect the field of velocity of the air flow through the chamber 90, but the extension of the cube cover 132 into the inlet stream may also cause pieces of cane cut and tailings in the inlet stream to physically impact (that is, impact on ) the cube cover 132. This physical contact can tend to distribute the tailings material and cane cut pieces relatively evenly around the cleaning chamber around from the hub cover 132, while also scraping the heavier cane cutting pieces of momentum so that the cutting pieces tend to fall from the hub cover 132 to the retaining plate 88 (or other aspects of the extractor 50) and out of outlet opening 84.
[0055] Also referring to figures 7A and 7B, an example of a velocity field for an air flow through extractor 50 is outlined. It will be understood, however, that other beneficial flow fields can be obtained alternatively. In figure 7A faster speeds are outlined as darker lines and in figure 7B faster speeds are outlined as thicker lines. (For clarity of presentation, several velocity vectors have been condensed into single representations of average velocity in figure 7B). As in figure 6, it can be seen that the various aspects disclosed of the extractor 50 contribute collectively to regions of relatively uniform vertical speed across the entire extractor 50. As noted above, this (and other factors) can contribute to operations of more effective and efficient cleaning. In the flow region 148 next to the inlet opening 76, for example, it can be seen not only that the velocity field is relatively constant through the cleaning chamber 48, but that the velocity vectors are generally oriented in a vertical manner. Consequently, cut pieces and waste material that penetrate the cleaning chamber 48 can be exposed to relatively uniform and vertical flow almost immediately.
[0056] In certain embodiments, although scalar velocities of airflow through chamber 90 may be relatively constant, the velocity field within various flow regions of chamber 90 may not be entirely uniform. For example, within the flow region 148 below the hub cover 132, scalar velocities in the back portion of the flow region 148 (i.e., to the right of axis 124 in figures 7A and 7B) may be somewhat greater than speeds scalars in the front portion of the flow region 148 (i.e., to the left of axis 124a in figures 7A and 7B). This partial (and potentially light) non-uniformity can also contribute to a relatively balanced distribution of material within the flow region 148 and to more effective and efficient cleaning operations. For example, since material can only penetrate the cleaning chamber 48 from the front side (i.e., from the left from the perspective of figures 7A and 7B), the higher speeds on the rear side of the chamber 90 (ie, to the right from the perspective of figures 7A and 7B) may tend to bring material into the rear portion of the chamber 90 (for example, due to the reduced pressure associated with the higher speeds) and thereby distribute in a more balanced way the material that penetrates the chamber 90. As also noted above, a more balanced distribution of material within the chamber 90 may tend to allow more effective and efficient cleaning operations. For example, since the more evenly distributed material can be spread relatively thinly over any given portion of a cross section of chamber 90, more surface area of the material can be exposed to airflow through chamber 90, cut pieces may not be covered by pellets and loaded with lighter tailings, and so on. Consequently, better separation of cut and tail pieces can be achieved, even with lower fan and energy speeds than in certain traditional designs.
[0057] Once the cut and tail pieces continue upward into the cleaning chamber 48 into the generally annular flow region 150, the material can continue to be exposed to a generally vertical velocity field, as generated and guided the speed of the hub cover 132, the airfoil blades 123, the vanes 120 (not shown in figures 7A and 7B), and so on. In certain embodiments, the hub cover 132 may be configured to extend downwardly into the cleaning chamber 48, such that some portion of the material may physically impact the hub cover 132. As noted above, this contact may tend to distribute further cut and reject pieces evenly through the cleaning chamber 48, while also stealing the heavier cut pieces from the momentum that should be required for the cut pieces to continue past the fan blades 128 and into the interior of the hood 70. Again, this can result in a more balanced distribution of plant material (and others) across the entire flow region 150, with a correspondingly more effective exposure for tailings at sufficient flow speeds for effective cleaning.
[0058] In certain embodiments, the velocity field through the flow region 150 can be generically uniform, such that cut pieces or waste material at any given point through a horizontal portion of the flow region 150 can be generally exposed to it air flow speed. In contrast, several preceding systems may tend to exhibit significantly higher airflow velocities in the rear portion of the flow region 150 (that is, to the right of figures 7A and 7B) than in the front portion of the region 150. In such cases designs where the kinetic energy of the upward flow is tilted towards the rear portion of the flow region 150, not only can the higher speeds in the rear portion tend to carry cut pieces after the fan blades (resulting in undesirable losses), however, higher fan speeds and energy may be generally required to generate sufficient speeds to bring material upward after the fan blades within the front portion of region 150. Fundamentally, this increase in fan speed and energy can then correspond to an increase in fan speeds. speeds in the rear portion of region 150, which can result in loss of more balanced cut pieces as well as generally increased energy consumption. Consequently, it may be beneficial to provide a relatively uniform velocity field within region 150 instead of a velocity field that is tilted (from a scalar perspective) towards the rear portion of region 150.
[0059] Incidentally, in certain modalities it may be useful to provide a velocity field within the flow region 150 with slightly higher scalar velocities in the front portion of the flow region 150 than in the rear portion of the region 150. As outlined in figures 7A and 7B for example, the average scalar speed in the front portion of region 150 can be generally higher than the average scalar speed in the rear portion, which may allow for more efficient tailing movement after fan blades 128 across the entire chamber cleaner 48, while also preventing excessive loss of cut pieces through fan blades 128.
[0060] Moving further upward into the extractor 50, most of the material found in the generically annular flow region 152 may be discarded, since most of the cut pieces may have fallen out of the air flow in the direction of the outlet opening 84. This can result from several factors. For example, the physical extension of the cube cover 132 into the material flow and other aspects disclosed, may have helped to distribute the material that enters through the cleaning chamber in a more balanced way, such that the lighter waste may have been. effectively pulled through the fan blades 128 and the heavier cut pieces may have been dropped in the direction of outlet opening 84. In addition, as noted above, hub cover 132 may have physically contacted portions of both pieces of cut and tailings, which may have further deflected the cut pieces towards the outlet opening 84, while distributing the tailings through chamber 80 for absorption to the hood 70.
[0061] Due to the various design aspects noted above, the velocity field within the flow region 152 can be generically vertical and can be distributed relatively evenly. In addition, this relatively uniform and generally vertical flow field can extend upward into the hood 70, including up to and after the upper end 156 of hub 126. In contrast, other designs may have higher scalar speeds at the rear flow region 152 and significant recirculation flows (i.e., significantly non-vertical flows) in close proximity to the upper edges of the fan blades. Consequently, while the tailings and cut pieces in previous designs may tend to accumulate above the fan, the tailings in the flow regions 152 can be carried strongly away from the fan blades 128, thereby clearing the flow regions 152 for more material. which enters, preventing the blades from clogging and generally contributing to more effective and efficient cleaning. In this regard, the wider diameter 134a of spindle 134 can also contribute to improved cleaning, since the wider spindle 134 and the inclined profile of an upper end 156 of hub 126 may tend to prevent accumulation of waste material above fan blades 128.
[0062] Various operations to clean a stream of sugarcane cut pieces (for example, with extractor 50), including several of the operations described above, can be implemented as part of a method for cleaning sugarcane -sugar “SC”. Such a method can be implemented automatically (for example, as controlled by controller 58), manually (for example, as controlled by an operator through various interfaces and input devices (not shown)), or as a combination of automatic operations and manual (for example, as controlled manually by an operator through various input devices and automatically via controller 58). It will be understood, therefore, that a SC method can be implemented using different computing devices, or through different hydraulic, electronic and mechanical, electro-hydraulic, electro-mechanical, or other control devices in different combinations. In certain implementations, for example, an SC method can be implemented by means of controller 58 which controls various speeds of rotation of (or rate of energy supplied to) fan assembly 124, feed rollers 40 and 42, and drums chippers 44 and 46.
[0063] Also referring to figure 8, several operations of an example of a SC 170 method are represented. In certain implementations the SC 170 method may include generating 172 an air flow inside an extractor for a sugarcane harvester using a 174 fan device, in which air and plant material are loaded through the 172 air flow generated from an inlet of the cleaning chamber upwards towards an exit of the extractor. Fan device 174 may include a device such as fan assembly 124, or another device capable of generating an air flow (for example, a turbine, pump, piston, or other device). For example, also referring to figures 7A and 7B, the fan assembly 124 can be used to generate 172 an air flow inside the extractor 50, so that pieces of sugar cane cut and tailings within a stream of material through the inlet opening 176 are loaded upwards into the cleaning chamber 48. The generated air flow 172 can still carry some of the material (for example, the lighter tailings) after the fan assembly 124 and out of the outlet opening 84. The air to feed the generated air flow 172 can be brought in from a variety of sources including: through the inlet opening 76, through several cracks (not shown) and other openings. A substantial portion of the generated air flow 172 can leave the extractor 50 through the outlet opening 84.
[0064] The SC 170 method may include generating 176 as part of the generated air flow 172, an inlet flow field within an inlet region. The inlet flow region (for example, the flow region 148 as outlined in figures 7A and 7B) can be oriented within the cleaning chamber 48 of the extractor 50, generally between the fan device 174 (for example, the fan assembly). fan 124) and inlet opening 76. In certain embodiments, the inlet flow region may extend vertically (or otherwise) between a lower end 158 of hub cover 132 and inlet opening 76.
[0065] In certain implementations, the generated inlet flow field 176 may have a generally lower average scalar flow velocity in a front portion 180 of the inlet region than in a rear portion 182 of the inlet region. For example, referring again to figures 7A and 7B, the portion 180 of the flow region148 to the left of the axis of rotation 124a may have an average scalar speed that is generally less than the average scalar speed in portion 182 of the flow region 148 to the right of the axis of rotation 124a.
[0066] The SC 170 method may include generating 186, as part of the generated air flow 172, a fan inlet flow field within a fan inlet flow region. The fan inlet flow region (for example, the flow region 150 as outlined in figures 7A and 7B) can be oriented inside the cleaning chamber 48 of the extractor 60, generally between the inlet opening 76 and the fan device. 174 (for example, fan assembly 124). In certain embodiments, the fan inlet flow region (for example, region 150) may extend vertically (or otherwise) between the inlet flow region (for example, region 148) and the intake plane (for example, example, the intake plane 136a) of the fan device 174.
[0067] In certain implementations, with reference to figure 8, the generated fan inlet flow field 186 may have a higher average flow speed in a front portion 190 of the fan inlet region than in a portion region 192 of the fan inlet flow region. For example, referring again to Figures 7A and 7B, the portion of the flow region 150 to the left of the axis of rotation 124a may have an average scalar speed that is generally greater than the average scalar speed in the portion of the flow region 150 to the right of the axis of rotation 124a. In other implementations, flow rates in the front portion 190 and in the rear portion 192 of a fan inlet flow region can be compared in other ways, for example, they can be substantially similar.
[0068] The SC 170 method may include generating 196 as part of the generated air flow 172, a transition flow field within a transition flow region. The transition flow region (for example, the flow region 152 as outlined in figures 7A and 7B can extend from the cleaning chamber 48, through the fan blades 128, and into the extractor hood 70 of the extractor 50. In certain implementations, the transition flow region (for example, flow region 152) can extend from an intake plane of fan device 174 (for example, intake plane 136a) or another reference area associated with the fan device 174, into the hood 70. In certain implementations the transition flow region can extend substantially into the hood 70. For example, flow region 182 can be seen to extend inside the hood 70 vertically after the upper end 156 of hub 126.
[0069] In certain implementations the generated transition flow field 196 may represent substantially similar average scalar flow velocities in both, a front portion 200 of the transition flow region and a rear portion 202 of the transition flow region.202 . For example, referring again to figures 7A and 7B, the portion 200 of the flow region 152 to the left of the axis of rotation 124a may have an average scalar speed that is generically similar to (for example within 5 to 10% of) average scalar velocity of the portion 202 of the flow region 152 to the right of the axis of rotation 124a.
[0070] It will be understood that several other implementations may also be possible. In certain implementations, for example, one or more of the various flow regions (for example, the flow regions 148, 150 and 152) may extend completely across the local width (for example local diameter) of the extractor 50 or one more of the fan inlet and transition flow regions (for example, flow regions 150 and 152), can extend completely from the outer limits of the generated air flow 172 (for example, to the inner limits of the cleaning chamber 48 and hood 70) to hub 126 or hub cover 132 of the fan device. Other implementations may be possible, however, including with the transition flow region (for example, the flow region 150) or the fan inlet flow region (for example, the flow region 152) extending from the limits of the generated air flow 172 to a projection of the outermost profile of hub 126 (e.g., a vertical projection of the connection point between fan blades 128 and hub 126) or another reference area.
[0071] In different modalities it can be useful to provide a deflector body that extends into the cleaning chamber of a tailings extractor, such that the deflector body deflects cut pieces of cane and other materials inside the cleaning chamber. Referring also to figures 9 and 10, for example, another configuration of the extractor 50 is outlined with an example of deflector body 210 placed in the inlet opening 76 of the cleaning chamber 48.
[0072] Generally, a deflector body can be configured to deflect cane cut pieces and other materials within a cleaning chamber, such that the deflector body directs deflected cane cut pieces and other materials along a deflected path inside the cleaning chamber. As outlined in figures 9 and 10, the deflector body 210 is generically placed above an inlet opening 76a into the cleaning chamber 48, and whose opening 76a can be configured in a similar way to inlet opening 76, such that at less part of a feed stream 212 of cane cut pieces and other materials that passes from rollers 40 and 42 (see figure 1) into the cleaning chamber 48 can be deflected into the cleaning chamber 48 along of a deflected path 216, by means of a lower deflection surface 214 in the deflector body 210 facing the supply chain 212. In this way, for example, the deflector body 210 can reduce (or eliminate) a component above the speed of cane cut pieces and other materials within the feed stream 212 before the cane cut pieces and other materials fully penetrate the air flow inside the cleaning chamber 48 (see, for example, the cam air flow point outlined in figures 7A and 7B). Among other benefits this can prevent some of the cane cut pieces and other materials contained within the column of the feed stream 212 from being carried out of the cleaning chamber 48 by the air flow before the cane cut pieces have been separated appropriately from the other materials.
[0073] In some embodiments, a deflector body can be configured to direct a portion of a feed stream towards a particular aspect of an extractor. Where a hub cover is provided over an extractor fan, for example, a deflector body can be configured such that when the deflector body deflects a stream of cane cut pieces and other materials, at least a portion of the stream is directed to the along a deflected path that intersects the hub cover. In this way, the pieces of cane cut and other materials that travel along the deflected path can physically impact the cube cover, with the impact acting generically to separate the pieces of cane cut and other materials.
[0074] The impact-driven separation in turn can result in a generally improved cleaning of the chain. For example, where sugarcane cut pieces and other materials in a feed stream were kneaded together for pellets, airflow within a cleaning chamber can act collectively on the pellets as a whole, rather than separately on the pellets. cane cut pieces and other materials individually. In this way, pieces of cane cut as part of the agglomerates can be loaded out of the cleaning chamber with the other materials. However, a physical impact with another object, such as a cube cover, can break these agglomerates, such that the air flow can act separately on the cane cut pieces and other materials. In addition, physical impact with another object can generally redistribute the cut pieces of cane and other materials from an input stream to a more diffuse arrangement within the cleaning chamber. Again, this can allow the airflow in the chamber to act relatively separately on the cane cut pieces and other materials, such that the heavier cane cut pieces can fall down for collection, and the other materials can be loaded upwards for disposal. Where the object impacted by the cane cut pieces and other materials is itself in motion, for example, rotating inside the cleaning chamber, this movement can also contribute to the separation and redistribution of the cut pieces of cane and other materials.
[0075] As outlined in figure 10, the deflection surface 214 in the deflector body example 210 is configured so that a deflected chain of cane cut pieces and other materials that moves along the deflected path 216 can at least in part, physically impacting the cube cover 132. As also discussed above, including with respect to figure 6B, such impact may tend to separate agglomerates from cane cut pieces and other materials, as well as generally redistribute the cane cut pieces or other materials around the cleaning chamber 48.
[0076] A deflection surface can be configured to direct deflected material towards a hub cover, or other aspect, in a variety of ways. As outlined in figure 10, for example, the deflection surface 214 is configured to have a generally flat geometry. In addition, an inner extreme portion 214a of the deflection surface 214 extends at an angle (for example, measured with respect to the axis of rotation of the fan assembly 124 or the hub cover 132) such that a line tangent to the extreme portion 214a extends through the cleaning chamber 48 to intercept the hub cover 132. In some embodiments, including where the deflection path 216 generally follows such a tangent line (for example, as outlined in figure 10), such a configuration of the deflection surface 214 it can generally ensure that at least a portion of the deflected stream of sugarcane cut pieces and other materials impact the hub cover 132 for separation and redistribution within the cleaning chamber.
[0077] In some embodiments, the deflected path 216 may extend directly (for example, without a significant circumferential walk) between the deflection surface 214 and the hub cover 132, or other aspect. In other embodiments, a deflected path 216 may have other profiles.
[0078] In some embodiments, adjustment of the deflector body 210 (and other components) may be possible. For example, the deflector body 210, or related aspects, can be configured such that the deflection surface 214 can be adjusted between different extension distances within the cleaning chamber 48. As outlined in figure 10, for example, the deflection surface 214 extends an extension distance 218 within the cleaning chamber 48 from the inlet opening 76a to an end of the end portion 214a. In various embodiments, the deflector body 210 can be adjusted such that the end portion 214a, or another aspect of the deflection surface 214, extends a greater extension distance 220 within the cleaning chamber. This can be useful, for example, to provide various amounts or deflection directions for cane cut pieces and other materials within the cleaning chamber 48, as it can be useful for routing different flows of material through the feed train into the interior cleaning chamber 48.
[0079] In some embodiments, a cracked arrangement may allow adjustment for the extension distance of a deflection surface within a cleaning chamber. For example, as outlined in figure 11, a cracked arrangement on a side mounting plate 224 of the deflector body 210 includes a mounting slot 222. Connecting the deflector body 210 to a frame 232 of the combine 20 feed train (see also figure 9) at different locations along the mounting slot 222, the extreme portion 214a of the deflection surface 214 can be adjusted for different extension distances within the cleaning chamber 48.
[0080] In some embodiments, a telescopic arrangement (not shown) can be used such that a portion of the deflection surface 214 can be moved with respect to a portion of the deflector body 210, to change the extent of the deflection surface 214 within the cleaning chamber 48. In some embodiments, an adjustment arrangement can be placed on other aspects, in addition or as an alternative, to the deflector body 210. For example, a slot (not shown) similar to the mounting slot 222 can be provided on the structure 232 of the feed train, such that the extension distance of the deflection surface 214 within the cleaning chamber 48 can be changed by attaching the deflector body 210 to the mounting aspect in different positions in the slot.
[0081] In some embodiments, a deflector body may also, or alternatively, be adjustable to change other aspects of the orientation of an included deflection surface. For example, some deflector bodies, or related devices, can be adjustable to change a characteristic angle of the deflection surfaces of the deflector bodies. For example, a deflector body can be adjusted in several ways to change an angular orientation of the deflector body as a whole, an angle of a deflection surface where the surface deflects an incoming current, an angle of reflection of the deflection surface in a extreme portion of the deflection surface, and so on.
[0082] As outlined in figure 11, the side mounting plate 224 for the deflector body 210 includes a fan-shaped end portion 226, with several mounting openings 228 configured to accommodate a mounting pin 230. Consequently, the deflector body 210 and the deflection surface 214 can be placed in an adjustable manner at different angles, for example, with respect to an axis of rotation of the hub cover 132, depending on which of the openings 228 accommodates the mounting pin 230. In some embodiments this can be be useful, for example, to allow adjustment of the angle of the extreme portion 214a of the deflection surface 214, such that the deflected path 216 appropriately intercepts the hub cover 132 (or other aspect or region of the cleaning chamber 48).
[0083] In some embodiments, a hub cover can also or alternatively be adjustable. Still referring to figure 10, for example, the hub cover 132 can be configured to be moved up and down inside the cleaning chamber 48 such that a lower end of the hub 132 has different extensions within the cleaning chamber 48, for example, when measured from the bottom plane of fan blade 136. As outlined, for example, hub cover 132 can be adjusted between a raised configuration outlined in full relief, in which the bottom end of hub cover 132 it only intersects deflection path 216, and a lowered configuration outlined by dotted profile 144, in which the bottom end of hub cover 132 extends below (or at least relatively much further inward) deflection path 216.
[0084] By changing the point (or points) of intersection of deflection path 216 and hub cover 132, adjustments to hub cover 132 can also change the geometry to which the cane cut pieces and other materials are exposed when they impact the cube cover 132. As outlined in figure 10, for example, adjusting the extension distance of the cube cover 132 can also cause the deflected path 216 to intercept the cube cover 132 in areas of different surface geometries for hub cover 132. For example, where deflected path 216 intersects hub cover 132 near a lower end of the hub cover, deflected path 216 may impact a different curved profile than hub cover 132, other than if deflected path 216 intersects hub cover 132 at a higher location. Similarly, materials that impact hub cover 132 on a wider diameter of hub cover 132 (for example, higher upwards on the hub cover profile) may be exposed to higher local speeds of the cover surfaces and consequently higher potential deflection speeds. Similar effects can also be obtained by adjusting the deflection body 210, for example, by adjusting the angular orientation of the deflection surface 214. Consequently, for example, adjusting the hub cover 132 or the deflector body 210 can be useful for expose materials directed along the deflected path 216 to different directions of deflections and magnitudes of impact on the hub cover 132.
[0085] As outlined in figures 9 and 10, the deflection surface 214 is a generally flat surface that extends from the outside of the cleaning chamber 48 (that is, to the right of the inlet opening 76a in figure 10) to the inside the cleaning chamber 48 (i.e., to the left of the inlet opening 76a in figure 10). This can, for example, allow relatively economical fabrication of the deflector body 210, using sheet material or other similar materials. In other embodiments, the deflection surface 214 (or several other deflection surfaces) can extend over different distances, including zero distances, outside the cleaning chamber 48. Similarly, deflection surface 214 (or several other deflection surfaces) ) can be configured with one or more non-flat surfaces.
[0086] Referring also to figures 11A through 11C, an example of configuration of the deflector body 210 is outlined as deflector body 210a. In some embodiments, configurations such as that of the deflector body 210a may be useful to allow adjustments for angular orientation of the deflector body 210a or extension of the deflector body 210a into the cleaning chamber (for example, the cleaning chamber 48). In some embodiments, configurations such as that of the deflector body 210a may allow relatively direct retrofitting of existing sugarcane harvesters, such that deflection of the cut pieces of cane and other materials within the cleaning chamber can be achieved.
[0087] The deflector body 210a can be formed generally of sheet material, or of plastic sheet and other components, although other materials may be possible. As outlined, the deflector body 210a is formed of separate parts with an extension body 240 and a support body 242, each of which includes a deflection surface. The extension body 240, for example, includes a deflection surface 244 on one side of the body 240. With the deflector body 210a mounted to the combine 20 (see for example figure 10), the deflection surface 244 generally faces the flow current. feed and extends into the cleaning chamber 48 at an angle that generally aligns the plane of the deflection surface 244 with the hub cover 132.
[0088] Extension body 240 may include several mounting arrangements. As can be seen in figures 11B and 11C, the extension body 240 includes a set of mounting holes 246 for attaching the extension body 240 to the support body 242. The support body 242 can also be attached to the frame 232, such that the support body 242 supports the extension body 240 to swing an extreme portion 244a of the deflection surface 244 into the cleaning chamber 48.
[0089] Similar to deflector body 210, side mounting plates 224a connected to deflector body 210a include fan-shaped end portions 226a with several mounting openings 228a configured to accommodate respective mounting pins. With this arrangement, the support body 242, the deflector body 210, and the deflection surface 244 can be placed at different angles (for example, in relation to the axis of rotation of the hub cover 132), depending on which of the openings 228 accommodates the mounting pin 230. For example, the side mounting plates 224a can be connected to the frame 232 with the pin 230 (see figure 11) extending into different openings 228a depending on the desired angular orientation of the deflection surface 244.
[0090] Also similarly to the deflector body 210, mounting slots 222a are included in slotted arrangements on the side mounting plates 224a of the deflector body 210. Connecting the support body 242a to the frame 232 at different locations along the mounting slot 222a and connecting the extension body 240 to the support body 242, the extreme portion 244a of the deflection surface 244 can be adjusted to different extension distances within the cleaning chamber 48.
[0091] In some embodiments, the slots 222a can also be useful to allow angular adjustments relatively easily with the fan-shaped mounting openings 228a of the plates 224a. For example, the ability to slide the body 242 along a screw or other pin (not shown) through slot 222a may allow a mounting pin (for example, pin 230 in figure 10) to be moved between different openings 228a without the need to completely remove the mounting pin or screw or other pin through the slot 222a.
[0092] In some embodiments, additional or alternative slotted arrangements can be provided on the extension body 240. As outlined in dotted highlighting in figures 11B and 11C, for example, slots 248 may allow the extension body 240 to be attached to the support body 242 with different lengths of extension in relation to the support body 242. Consequently, the slits 248 can, like the slits 222a, allow adjustments of an extension distance of the deflection surface 244 within a cleaning chamber.
[0093] In some embodiments, the support body 242 may also include a deflection surface 250, which can be configured to generically face a supply chain, for example, the supply chain 212 outlined in figure 10. In some embodiments the support body 242 can be configured such that an end 252 of the support body 242 is generally aligned with (or something away from) a perimeter of the cleaning chamber 48. In this way, the deflection surface 250 can deflect cane cut pieces and other materials outside the cleaning chamber 48, and can be configured to support, through deflections of the supply chain 212, favorable trajectories of the supply chain 212 into the cleaning chamber. In some embodiments, for example, the deflection surface 250 can be configured to deflect the feed stream 212 towards the hub cover 132, or other aspects of the extractor 50 or the air flow within the cleaning chamber 48. Additional deflection it can then also be supplied into the cleaning chamber 48 by means of the deflection surface 244.
[0094] Another aspect can also be included. For example, a series of mounting or alignment aspects, such as fixed rods 254 can be included on the extension body 240 or the support body 242. Similarly, aspects such as a cross member 256 can be provided for structural support , for connecting other components, and so on.
[0095] As also discussed above, guide vanes can be included in a waste extractor, such as extractor 50. In some embodiments, the guide vanes can be configured to redirect the air flow within a cleaning chamber in particular ways. In some embodiments, the guide vanes can, additionally or alternatively, be configured to physically deflect cane cut pieces and other materials, to improve the cleanliness of a feed stream that penetrates the cleaning chamber.
[0096] As shown in figure 12, several instances of the guide vanes 120 for the tailing extractor 50 can be placed on an inner perimeter wall of the primary ring 96. In this way, the guide vanes 120 can be placed generically upstream of the blades. fan 128 with respect to a volumetric direction of the generated air flow (i.e., they can be placed below the fan blades in the cleaning chamber 48). In other embodiments, the guide vanes 120 (or other guide vanes) can alternatively or additionally be placed generically downstream of the fan blades 128 (i.e., above the fan blades 128, as outlined) or on the same plane as the blades.
[0097] In some embodiments, each of the guide vanes 120 can be angled against the rotation of the fan blades 128. As outlined, for example, each of the guide vanes 120 can include an angled guide surface 120a that includes an upper end 262 and a lower end 264 and generally faces towards the fan assembly 124 and against a direction of rotation 266 of the fan blades 128. Since the fan blades 128 rotate cyclically in the direction 266, each fan blade 128 consequently passes the upper end 262 of the guide surface 120a before passing the lower end 264 of the guide surface 120a. In this way, the air flow generated by the fan blades 128 carries cane cut pieces and other materials upward into the cleaning chamber 48 (and counterclockwise as outlined), cane cut pieces and other materials that traveling close to the inner perimeter of the ring 96 can be deflected down into the cleaning chamber 48 by the guide vanes 120, that is, away from the hood 70 as outlined (see figure 10). In some embodiments the vanes 120 (or other vanes) can be angled with the rotation of the fan assembly 124, they can vary in orientation from vane to vane, that is, they may not have a uniform pitch between different vane 120), or through a guide (or impact) surface of a single reed, or may otherwise vary from the configuration example outlined in figure 12.
[0098] In other embodiments, as also noted above, guide vanes can be placed in other locations with respect to fan blades 128. In some embodiments, guide vanes positioned in these other locations can similarly be configured to deflect pieces of cutting cane and other materials away from an outlet of the cleaning chamber 48. For example, with guide vanes placed above the fan blades 128 (not shown) a similarly stepped arrangement with respect to the fan blades 128 can be employed, with a lower (and impact) guide surface of each such guide vane that defines upper and lower ends, such that the rotation of the blades passes the upper end of the guide surface before the lower end. Consequently, such guide (and impact) surfaces may also tend to deflect cane cut pieces and other materials downwardly away from the hood 70.
[0099] In some embodiments, a deflecting surface of a deflecting body can be configured to extend into the cleaning chamber farther than one or more guide vanes. As outlined in figure 12, for example, the guide vanes 120 have a generally uniform maximum extension away from the inner perimeter of the ring 96, into the cleaning chamber 48. At the inlet opening 76a this extension of the guide vanes 120, for example For example, it results in a guide vane 120d which is vertically aligned with (but on a different plane from) the deflector body 210, extending for an extension distance 268 from the perimeter of ring 96 to the interior of the cleaning chamber 48. In some modalities, including as outlined, the end 214a of the deflection surface 214 of the deflector body 210 can extend a greater extension distance 270, as also measured with respect to ring 96. (As noted above, a deflection body may sometimes not extend into a cleaning chamber along the same plane (or planes) as the guide vane. Consequently, if a deflection body (or portion thereof) extends further away p For the interior of a cleaning chamber than a guide vane can be measured with respect to a shared reference surface, aspect or plane (for example, ring 96 or aperture 76a) regardless of whether such a surface, aspect or plane it is vertically aligned with both the deflection body and the relevant guide vane.
[00100] Collectively diverse of the aspects discussed here (for example, deflection body modalities, guide vanes, hub covers, and so on) can form a cleaning arrangement that uses, at least in part, physical impacts between a current and various aspects, to improve the separation of the supply chain in different components. It will be understood that such arrangements can include several aspects in different combinations. For example, examples of cleaning arrangements may include deflector bodies with or without hub covers or guide vanes, may include guide vanes with or without deflector bodies or hub covers, and so on. Likewise, it will be understood that different arrangements or different adjustments to similar arrangements can be particularly beneficial for particular harvest conditions and operations (for example, for particular vehicle speeds, harvest processing speeds, feed current characteristics, and so on. onwards.
[00101] Several adjustments and variations are discussed above with respect to the cleaning arrangement with deflectors. For example, deflecting bodies or deflection surfaces can be adjusted with respect to the extension distance or angular orientation, and hub covers can be adjusted with respect to extension distances. In some implementations such adjustments may correspond to the particular field or other conditions. For example, particular angular or span adjustments may be better suited to relatively high harvest rates, while other angular or span adjustments may be better suited to relatively low harvest rates. Similarly, some adjustments can be particularly supportive of effective sugarcane cleaning (and other operations) for particular plant types, environmental conditions, vehicle ride speeds, and so on.
[00102] As will be appreciated by someone versed in the technique, certain aspects of the disclosed theme can be configured as a method, system (for example, a work vehicle control system included in the combine 20) or computer program product. Consequently, certain modalities can be implemented as hardware, as software (including firmware, resident software, micro-code, etc.) or as a combination of software and hardware aspects. In addition, certain modalities may take the form of a computer program product in a computer-usable storage medium, which has computer-usable program code configured in the medium.
[00103] Any suitable computer-usable medium, or a computer-readable medium, may be used. The computer-usable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable or computer-readable storage medium (which includes a storage device associated with a computing device or client electronic device) can be, for example, but is not limited to an electronic, magnetic, system, device or device, optical, electromagnetic, infrared or semi-conductor, or any suitable combination of the above. More specific examples in a non-exhaustive list of computer-readable media should include the following: an electrical connection that has one or more wires, a portable floppy disk or hard disk, a random access memory (RAM), a memory read-only (ROM), an erasable programmable read-only memory (EPROM or volatile memory (flash)), an optical fiber, a read-only portable compact disc (CD-ROM) memory, an optical storage device. In the context of this document, a storage medium usable by a computer, or readable by a computer, can be any tangible medium that contains or stores a program for use by, or in connection with, the system, apparatus, or instruction execution device.
[00104] A computer-readable signal medium may include a data signal propagated with computer-readable program code configured therein, for example, in the baseband or as part of a carrier wave. Such a propagated signal can take any of a variety of forms that include, but are not limited to, electromagnetic, optical or any combination of them. A computer-readable signal medium may be non-transitory and may be any computer-readable medium that is not a computer-readable storage medium and that can communicate, propagate or transport a program for use by, or in connection with, a system, instruction execution apparatus or device.
[00105] Aspects of certain modalities are described here with references to flowchart illustrations and / or block diagrams of methods, apparatus (systems) and computer program products according to the modalities of the invention. It will be understood that each block of any flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided for a general purpose computer processor, special purpose computer, or other programmable data processing apparatus, to produce a machine such that instructions that run through the computer's processor or others programmable data processing devices create means to implement the functions / acts specified in the flowchart and / or block or block diagram blocks.
[00106] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to function in a particular way, such that the instructions stored in the computer-readable memory produce a manufacturing article that includes instructions that implement the function / act specified in the flowchart and / or block or blocks of the block diagram.
[00107] Computer program instructions can also be loaded onto a computer or other data processing device, programmable to cause a series of operational steps to be performed on the computer or other programmable device, to produce a computer-implemented process , such that the instructions they execute on the computer or other programmable device provide steps to implement the functions / acts specified in the flowchart and / or block or blocks of the block diagram.
[00108] The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of computer program systems, methods, and products in accordance with the various modalities of this disclosure. In this regard, each block in the flowchart or block diagram can represent a module, segment, or piece of code, which comprises one or more executable instructions, to implement the specified logical functions. It should also be noted that in some alternative implementations, the functions noted in the block can occur out of the order noted in the figures. For example, two blocks shown in succession can, in fact, be executed in a substantially concurrent manner, or the blocks can sometimes be executed in reverse order, depending on the functionality involved. It will also be noted that each block of the block diagrams and / or flowchart illustration and combinations of blocks in the block diagrams and / or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts or combinations of special-purpose hardware and computer instructions.
[00109] The terminology used here is for the purpose of describing particular modalities only, and is not designed to limit disclosure. For example, the terms "top", "bottom", "vertical", and the like, may be used with respect to the relative orientation of a particular modality, but they may not be designed to limit disclosure to that orientation or modality. As used herein, the singular forms "o", "one" are designed to include plural forms as well, unless the context clearly indicates otherwise. It will also be understood that any use of the terms "comprise" and / or "comprise" in this specification, specify the presence of described aspects, integers, steps, operations, elements and / or components, however it does not exclude the presence or addition of one or more other aspects, integers, steps, operations, elements, components, and / or a group of them.
[00110] The description of the present disclosure was presented for the purposes of illustration and description, however it is not designed to be exhaustive or limited to the disclosure in the disclosed form. Several modifications and variations will be evident for those of ordinary skill in the technique, without departing from the scope and spirit of the disclosure. Modalities referenced here explicitly were chosen and described to better explain the principles of disclosure and its practical application, and to enable others of ordinary skill in the art to understand disclosure and recognize various alternatives, modifications, and variations in the examples described. Consequently, several other implementations are within the scope of the claims that follow.

权利要求:
Claims (20)
[0001]
1. Sugarcane cleaning arrangement for attachment to a sugar cane harvester (20), the sugar cane harvester (20) including a cleaning chamber (48), a feed train to move a feed stream (212) of cane cut pieces and other materials into the cleaning chamber (48), and a fan rotating around an axis of rotation (124) to create an air flow within the chamber cleaning (48) to, at least partially, separate the pieces of cane cuttings from other materials, the sugar cane cleaning arrangement characterized by the fact that it comprises: a deflector body (210) with at least one deflection surface (214) of the deflector body, at least partially, facing the supply chain (212); the deflector body (210) being attached to the sugar cane cleaning arrangement, such that the at least one deflection surface (214) extends, at least partially, into the cleaning chamber (48); in which, as the feed train moves the feed stream (212) into the cleaning chamber (48), at least one deflection surface (214) deflects at least a portion of the feed stream (212) within the chamber cleaning (48); wherein the deflection surface (214) includes a planar surface extending in a plane that crosses the cleaning chamber (48) and crosses the axis of rotation (124).
[0002]
2. Sugarcane cleaning arrangement according to claim 1, characterized in that the at least one deflection surface (214) extends away from the cleaning chamber (48), such that when the supply train moves the supply chain (212) to the cleaning chamber (48), at least one deflection surface (214) deflects the portion of the supply chain (212), at least partially, in the direction of the chamber cleaning (48).
[0003]
Sugar cane cleaning arrangement according to claim 2, characterized in that the at least one deflection surface (214) includes first and second deflection surfaces facing at least partially towards the supply chain ( 212); and in which the deflector body (210) includes: a support body (242) that extends, at least partially, out of the cleaning chamber (48), the support body (242) supporting the first deflection surface ( 214), such that the first deflection surface (214) extends at least partially outside the cleaning chamber (48); and an extension body (240) which extends, at least partially, into the cleaning chamber (48), the extension body (240) supporting the second deflection surface (214), such that the second deflection surface ( 214) extends at least partially into the cleaning chamber (48).
[0004]
4. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that it includes an external deflector body (210) that extends, at least partially, outside the cleaning chamber (48) to deflect a portion of the supply chain (212) at least partially towards the cleaning chamber (48); and a mounting arrangement configured to secure the deflector body (210) to the external deflector body (210).
[0005]
5. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that the fan includes a hub cover (132), in which the deflection surface (214) is configured to direct the portion of the flow stream supply (212) towards the hub cover (132), such that at least some of the portion of the supply chain (212) physically impacts the hub cover (132).
[0006]
6. Sugarcane cleaning arrangement according to claim 5, characterized in that the deflection surface (214) includes an extreme portion that extends at an angle that is directed towards the hub cover (132) .
[0007]
Sugar cane cleaning arrangement according to claim 5, characterized in that the deflection surface (214) includes a flat surface that extends from a perimeter of the cleaning chamber (48) towards the cover of cube (132).
[0008]
Sugar cane cleaning arrangement according to claim 5, characterized in that the cleaning chamber (48) includes a perimeter wall with a plurality of guide vanes (120) extending at least over one first distance from the perimeter wall, in which the at least one deflection surface (214) extends at least partially within the cleaning chamber (48), after the first distance from the perimeter wall.
[0009]
9. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that it also includes a mounting arrangement for the deflector body to move the deflection surface (214) between at least the first and second characteristic angles .
[0010]
10. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that it also includes a mounting arrangement for the deflector body to move the deflection surface (214) between at least the first and second distances of extension into the cleaning chamber (48).
[0011]
Sugar cane cleaning arrangement according to claim 10, characterized in that it includes a portion of the deflector body (210) that extends, at least partially, outside the cleaning chamber (48), to deflect the portion of the supply chain (212) at least partially towards the cleaning chamber (48); and a mounting arrangement configured to secure the deflector body (210) to the outer portion of the deflector body (210), with at least the first and second orientations corresponding respectively to at least the first and second extension distances from the deflection surface. (214).
[0012]
12. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that a cube cover (132) for the fan, the cube cover (132) extending inside the cleaning chamber (48 ) with at least a portion of the hub cover (132) extending into the deflected path of the supply chain (212); wherein, the deflection of the supply chain portion (212) by the deflector body (210) causes the supply chain portion (212) to physically impact the hub cover (132).
[0013]
13. Sugarcane cleaning arrangement according to claim 12, characterized in that at least part of the deflected path extends directly between an inner end of the deflection surface (214) and the hub cover (132 ).
[0014]
Sugar cane cleaning arrangement according to claim 12, characterized in that it additionally comprises: a plurality of guide vanes (120) oriented around a perimeter of the cleaning chamber (48).
[0015]
15. Sugarcane cleaning arrangement according to claim 14, characterized by the fact that the fan rotates fan blades (128) to generate the air flow, in which the plurality of guide vanes (120) are , at least partially, placed downstream of the fan blades (128) with respect to the air flow.
[0016]
16. Sugarcane cleaning arrangement according to claim 14, characterized by the fact that the fan rotates fan blades (128) to generate an air flow, in which at least one of the guide vanes (120) includes a guide surface that at least partially faces the fan blades (128), the guide surface being oriented such that one of the fan blades (128) being rotated in a single rotation passes a first end of the guide surface before passing a second end of the guide surface, the first end of the guide surface being placed higher than the second end of the guide surface inside the cleaning chamber (48).
[0017]
17. Sugarcane cleaning arrangement according to claim 12, characterized by the fact that the cube cover (132) is configured to be adjustable between at least the first and second extension distances inside the chamber cleaning (48).
[0018]
18. Sugarcane cleaning arrangement according to claim 12, characterized by the fact that it also includes a mounting arrangement for the deflector body to move the deflection surface (214) between at least the first and second extension distances inside the cleaning chamber (48).
[0019]
19. Sugarcane cleaning arrangement according to claim 12, characterized by the fact that it also includes a mounting arrangement for the deflector body to move the deflection surface (214) between at least first and second angles characteristic.
[0020]
20. Sugarcane cleaning arrangement according to claim 1, characterized by the fact that it additionally comprises: a guide vane (120) placed on a perimeter of the cleaning chamber (48), the guide vane (120) including a guide surface that, at least partially, faces the fan blades (128), the guide surface being oriented such that one of the rotating fan blades (128), in a single rotation, passes the first end of the guide surface before passing a second end of the guide surface, the first end of the guide surface being placed higher than the second end of the guide surface inside the cleaning chamber (48); in which, when a second portion of the feed stream (212) is carried by the air flow towards an outlet of the cleaning chamber (48), at least one of the guide surface of the guide vane (120) and an impact surface the guide vane (120) deflects the second portion of the supply chain (212) away from the outlet.

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同族专利:

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US9456547B2|2016-10-04|

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AU2015202480B2|2019-04-18|

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US20150327438A1|2015-11-19|

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AU2015202480A1|2015-12-03|

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BR102015011143A2|2016-04-12|

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CN105103788A|2015-12-02|

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CN105103788B|2020-05-19|

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法律状态:
2016-04-12| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|

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2018-05-22| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2020-06-23| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|

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2020-12-22| B09A| Decision: intention to grant|

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2021-03-02| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/05/2015, OBSERVADAS AS CONDICOES LEGAIS. |

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US201461993913P| true| 2014-05-15|2014-05-15|

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US61/993,913|2014-05-15|

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US14/695,441|2015-04-24|

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