• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    AGRICULTURAL HARVEST AND METHOD FOR LOADING A CONCAVITY INTO A FRAME ASSEMBLY This is an agricultural combine (10) that includes a chassis (12), and a threshing and separation section (24) for threshing and separating grain from the material of culture collected. The threshing and separating section (24) is carried by the chassis (12), and includes at least one concavity (42) that has a hook feature (94), at least one sliding support (76, 78) and an assembly of frame (72) for loading and coupling the concavity (42) to it. The frame assembly (72) has a support bar (74) that allows the hook feature (94) to hook over the support bar (74) to support one side of the concavity (42). The other side of the concavity (42) is also coupled to the frame assembly (72). The sliding support (76, 78) supports the concavity (42) as the concavity (42) is moved toward or away from the support bar (74).
    公开号:BR102016008710B1
    申请号:R102016008710-4
    申请日:2016-04-19
    公开日:2021-06-15
    发明作者:Bart G.L. Van Hullebusch
    申请人:Cnh Industrial Belgium Nv；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    [001] The present invention relates to agricultural harvesters and, more specifically, the installation of concaves in their associated frames in agricultural harvesters.
    [002] An agricultural combine known as a “combined combine” is historically termed as such due to the combination of multiple crop functions in a single crop unit such as harvesting, threshing, sorting and cleaning. A combine harvester includes a platform that removes the crop from a field and a feeder housing that transports the crop material to a threshing rotor. The threshing rotor rotates within a perforated housing which can be shaped like adjustable concaves and which performs a threshing operation on the crop to remove the grain. Once the grain is threshed, it falls through holes in the concaves in a grain tray. From the grain tray, the grain is cleaned through the use of a cleaning system and is then transported to a grain tank on board the combine. A cleaning fan blows air through the screens to discharge mill and other debris towards the rear of the combine. Non-grain crop material, such as straw from the threshing section, proceeds through a waste system that can use a straw chopper to process the non-grain material and drive it out of the rear portion of the combine. When the grain tank reaches full capacity, the combine is positioned adjacent to a vehicle into which the grain will be unloaded, such as a trailer, gravity box, fixed-body truck, or the like; and an unloading system on the combine is actuated to transfer the grain into the vehicle.
    [003] More particularly, a rotating threshing or separation system includes one or more rotors that can extend axially (from the front to the rear) or transversely within the combine body and which are partially or completely surrounded by a concave perforated. The culture material is threshed and separated by turning the rotor inside the concave. The coarser non-grain crop material, such as stalks and leaves, is transported to the rear portion of the combine and unloaded back into the field. The separated grain, along with some finer non-grain crop material such as mills, dust, straw and other crop residues, are discharged through the concaves and fall into a grain tray where they are transported to a system. cleaning. Alternatively, the grain and finer non-grain culture material can also fall directly into the cleaning system itself.
    [004] A cleaning system further separates the grain from the non-grain culture material and typically includes a fan that drives a current of air flow up and back through vertically arranged sieves that oscillate in a forward manner. back and forth. The airflow stream lifts and carries the lightest non-grain crop material towards the rear end of the combine to be unloaded into the field. Clean grain, being heavier, and larger pieces of non-grain crop material that are not carried by the airflow stream, fall onto a surface of an upper sieve (also known as a mill sieve) through which some or the entirety of the clean beans passes to a lower sieve (also known as a cleaning sieve). The grain and non-grain culture material remaining on the top and bottom sieves are physically separated by the alternating action of the sieves as the material moves outward. Any grain and/or non-grain culture material that remains on the top surface of the upper sieve is discharged into the rear portion of the combine. The grain that falls through the bottom sieve lands in a bottom tray of the cleaning system, where it is guided forward towards a clean grain auger.
    [005] The clean grain auger drives the grain to a grain tank for temporary storage. The grain accumulates to the point where the grain tank reaches its maximum capacity and is unloaded onto an adjacent vehicle, such as a semi-trailer, gravity box, linear truck or similar, by an unloading system on the combine that it is actuated to transfer grain into the vehicle.
    [006] The concaves are attached to the frame members and need to be replaced due to wear or due to changes in the crop being harvested.
    [007] In EP 2514300 (US Patent No. 8,628,390) a support system for separating grids of a combine harvester is disclosed. As can be seen in Figures 6 to 11, a grate is moved to an entry location and one side of the grate is hooked to a support bar and then the other side is raised and also hooked to the other support bar. As can be seen from Figures 9 to 10, there is sufficient space for the installer to reach and support the grid as it is manipulated in the double hooked arrangement. Then, the grid is slid in an axial direction and another grid is inserted into the entry location. The double-hitch arrangement can be seen in Figure 11, where the hooks have been positioned to shorten spans 70 and 82 to prevent the grid from becoming disengaged. A disadvantage of this arrangement is that the grate has to be maneuvered and held by the installer until it is snapped into position. Another disadvantage is that the grid engagement arrangement has to be manipulated to minimize the spacing to prevent the grid from becoming disengaged. A concave support system is also described in US 3,470,881.
    [008] What is needed in the art is a cost-effective and effective way to allow the change of concaves in the combine, while minimizing the effort by the installer. DESCRIPTION OF THE INVENTION
    [009] The present invention provides for the installation of concaves by one person in a reduced amount of time in the confined space of a threshing section.
    [010] In a way, the invention is directed to an agricultural combine comprising the features defined in claim 1 that includes a chassis, and a threshing and separation section for threshing and separating grain from the harvested crop material. The threshing and separating section is carried by the chassis, and includes at least one concave having an engaging feature, at least one sliding bracket and a frame assembly for loading and attaching the concave to it. The frame assembly has a support bar that allows the hook feature to hook over the support bar to support one side of the concave. The other side of the concave is also attached to the frame assembly. The sliding support supports the concave as the concave is moved toward or away from the support bar.
    [011] A feature of the present invention that helps overcome problems related to the technique includes supports that allow the concave to be slid and supported as it is maneuvered into position. This allows the installer to use the position of the brackets to guide the hitch arrangement to the support bar. A novel feature of the present invention is the split member which allows a fastener to provide sliding support of the concave as it is slid in an axial direction relative to the rotor and then, once tightened, provides positive fixation of the concave to the frame set.
    [012] An advantage of the present invention is that the installation of concaves can be performed even if there is a confined space below the concaves.
    [013] Another advantage is that the concave is supported by two different supports, as needed, during the installation/removal process, thereby allowing for different degrees of movement.
    [014] A second aspect of the invention is directed to a method for loading the concave in the frame assembly of the agricultural combine of the first embodiment of the invention, comprising the characteristics defined in claim 9. BRIEF DESCRIPTION OF THE DRAWINGS
    [015] The foregoing and other features and advantages of this invention, and the manner of achieving them, will become more apparent and the invention will be better understood with reference to the following descriptions of embodiments of the invention taken in conjunction with the accompanying drawings, wherein: Figure 1 is a side view of an embodiment of an agricultural combine in the form of a combine using the frame and concave assemblies of the present invention; Figure 2 is a perspective view of an embodiment of a frame assembly of the present invention for securing the concaves of the present invention to the combine of Figure 1; Figure 3 is a perspective view of an embodiment of a concave of the present invention to be held by the frame assembly of Figure 2; Figure 4 is a schematic view of a rotor showing a step of installing the concave of Figure 3 into a frame assembly of Figure 2; Figure 5 is a schematic view of the rotor showing another step of installing the concaves of Figure 3 into a frame assembly of Figure 2; Figure 6 is a schematic view of the rotor showing yet another step of installing the concave of Figure 3 into a frame assembly of Figure 2; Figure 7 is a schematic view of the rotor showing yet another step of installing the concave of Figure 3 into a frame assembly of Figure 2; Figure 8 is a schematic view of the rotor showing yet another step of installing the concave of Figure 3 into a frame assembly of Figure 2; and Figure 9 is a schematic view of the rotor showing yet another step of installing the concave of Figure 3 into a frame assembly of Figure 2.
    [016] Corresponding reference characters indicate corresponding parts across the various views. The examples presented herein illustrate embodiments of the invention and such examples are not to be construed as limiting the scope of the invention in any way. DESCRIPTION OF ACHIEVEMENTS OF THE INVENTION
    [017] The terms "grain", "straw" and "waste" are used primarily throughout this specification for convenience, but it should be understood that these terms are not intended to be limiting. Thus, "grain" refers to the portion of the culture material that is threshed and separated from the disposable portion of the culture material, which is referred to as a non-grain, MOG, or straw culture material. Incompletely threshed culture material is referred to as "waste". In addition, the terms "front", "rear", "left" and "right" when used in relation to the agricultural combine and/or components thereof are usually determined with reference to the direction of the harvester's advance operative path, however, again, they should not be interpreted as limiting. The terms "longitudinal" and "transverse" are determined with reference to the forward and backward direction of the combine harvester and, likewise, should not be interpreted as limiting.
    [018] Referring now to the Figures and more particularly to Figure 1, there is shown an agricultural combine in the form of a combine 10 which generally includes a chassis 12, ground engagement wheels 14 and 16, a platform 18 , a feeder housing 20, an operator cabin 22, a threshing and sorting system 24, a cleaning system 26, a grain tank 28 and an unloading conveyor 30. An unloading conveyor 30 is illustrated as an auger of discharge, but can also be configured as a belt conveyor, chain elevator, etc.
    [019] The front wheels 14 are larger floating type wheels and the rear wheels 16 are smaller steerable wheels. Driving force is selectively applied to the front wheels 14 through a power plant in the form of a diesel engine 32 engine and a transmission (not shown). Although combine 10 is shown including wheels, it should also be understood that combine 10 may include tracks, such as full tracks or semi-tracks.
    [020] The platform 18 is mounted on the front portion of the combine 10 and includes a cutter bar 34 to separate crops from a field during forward movement of the combine 10. A rotating coil 36 feeds the crop into the platform 18, and an auger 38 feeds the separated crop laterally inwards from each side towards the feeder housing 20. The feeder housing 20 drives the cut crop to the threshing and separation system 24 and is selectively and vertically mobile through the use of actuators. such as hydraulic cylinders (not shown).
    [021] The threshing and separation system 24 is of the axial flow type and generally includes a rotor 40 at least partially enclosed and rotatable within a corresponding perforated concave 42. Cut crops are threshed and separated by rotating rotor 40 within concave 42, and larger elements such as stems, leaves and the like are discharged from the rear portion of combine 10. Smaller elements of crop material that include grain and non-grain crop material, including lighter-than-grain particles such as mills, dust and straw, are discharged through perforations in concave 42. Although the threshing and separation system 24 is illustrated as being of a type of axial flow having a rotor, the use of the present invention in conjunction with other conventional threshing systems should also be contemplated.
    [022] The grain that has been separated by the threshing and separation assembly 24 falls into a grain tray 44 and is conveyed towards the cleaning system 26. The cleaning system 26 may include an optional pre-cleaning sieve 46, a upper sieve 48 (also known as mill sieve), a lower sieve 50 (also known as cleaning sieve), and cleaning fan 52. The grain in sieves 46, 48 and 50 is subjected to a cleaning action by the fan 52 which provides an air flow through the sieves to remove the grinder and other impurities from the grain, such as dust, by making that material air-chargeable for discharge from the straw cover 54 of the combine 10. The grain tray 44 and precleaning sieve 46 oscillate in a front-to-back manner in order to transport the grain and finer non-grain culture material to the upper surface of the upper sieve 48. The upper sieve 48 and the lower sieve 50 are arranged vertically in in relation to each other and similarly oscillate in a front-to-back manner in order to spread the grain along the sieves 48, 50, while allowing clean grain to pass by gravity through the openings of the sieves 48, 50.
    [023] The clean grain falls into a clean grain auger 56 positioned transversely below and in front of the lower sieve 50. The clean grain auger 56 receives clean grain from each sieve 48, 50 and from the bottom tray 58 of the cleaning system 26. The clean grain auger 56 conveys the clean grain laterally to a grain elevator 60 arranged, generally vertically, for transport to the grain tank 28. The residues from the cleaning system 26 fall into a chute. waste auger 62. Waste is conveyed through waste auger 64 and return auger 66 to the upstream end of cleaning system 26 for repeated cleaning action. Cross augers 68 at the bottom of grain tank 28 drive the clean grain within grain tank 28 to discharge auger 30 for unloading from the combine 10.
    [024] The non-grain crop material is advanced through a waste handling system 70. The waste handling system 70 may include a chipper, counter knives, a windrow door and a waste retractor.
    [025] Now, additionally referring to Figure 2 a frame assembly 72 is illustrated, which is part of the threshing and separation section 24. This frame assembly 72 is configured to support two concaves 42, which may be identical or have different harvest resources. The frame assembly 72 includes a support bar 74, a slide support 76, slide supports 78, an inner support 80, two outer supports 82, and a slotted support member 84 having a slot 86 and holes 88. frame 72 is configured to be adjustablely positioned relative to rotor 40 by a control system, not shown for clarity.
    [026] The slide supports 76 and 78 are shown as a bar and a bush, either of which can be used in both locations and are located on both the inner support 80 and the interior of an outer support 82. concave 42 is slid in a direction 90, which is generally normal to an axial direction 92. Slot 86 accommodates a fastener that allows concave 42 to slide in a direction 92 after being slid into frame assembly 72 in the direction 90.
    [027] Now, additionally referring to Figure 3, a concave 42 is illustrated which has engaging features 94, a hole 96, a bottom 98 and an edge 104. The concave 42 is slid into the frame assembly 72 in the direction 90 , engaged with support bar 74, lifted from slide supports 76 and/or 78, engaged with slotted support member 84, slid in direction 92 and secured to frame assembly 72, all of which will be discussed in detail in relation to the Figures. remaining. A second concave 42 is then slid in the direction 90 and subjected to the same assembly procedure, but is not slid in the direction 92 as the location is occupied by the first concave 42. It is contemplated that the frame assembly 72 can accommodate more than two concave 42, each of which is slid into their respective positions after being slid in a non-axial direction to frame assembly 72.
    [028] Now, additionally referring to Figures 4 to 9, a sequence of positions for the concave 42 is shown as it is positioned in the frame assembly 72. The removal of the concaves 42 follows a procedure basically inverse to that which is discussed for installation.
    [029] In Figure 4, the concave 42 is moved, in general, in the 90 direction, with the bottom 98 of the concave 42 in contact with the sliding support 76 to thus support some weight of the concave 42. In Figure 5 o concave is further moved in the direction 90 as the bottom 98 rolls on or slides over the slide support 76.
    [030] In Figure 6, concave 42 is slightly tilted as it continues its movement in direction 90 so as to engage the slide supports 78. Then, as shown in Figure 7, concave 42 is rolled/ slid along the supports 76 and 78 so as to approach the support bar 74, now, in this situation, the supports 76 and 78 carry the full weight of the concave 42 and allow the operator to make the additional installation of a ergonomic way. Supports 76 and 78 are positioned so that the leading edge of concave 42 can release or pass over support bar 74.
    [031] In Figure 8, the engagement features 94 of the concave 42 engage the support bar 74 as the concave 42 is raised on the left side, while still being supported by the supports 78. Then, as shown in Figure 9, the concave 42 is raised and engaged with a fastener 100, so that the concave 42 is then held in place by the engaging features 94 and the support bar 74 on one side and the fasteners 100 on the other side. The configuration of the engagement feature 94 and the edge 104 of the concave 42 and the interaction with a beam 106 of the frame assembly when the concave 42 is installed are such that the concave 42 is pushed in a downward direction. In that case, the forces produced by the harvesting operation will cause the concave 42 to be more securely hooked to prevent the concave 42 from coming loose.
    [032] If the frame assembly 72 has more than one concave 42, the fastener 100 is inserted through a slot 86 and the hole 96 is not tightened. Then, concave 42 is slid in the direction 92, a concave slides along support bar 74 and loosely engaged fastener 100 supports the weight of concave 42. Since concave 42 is positioned in the desired portion of the assembly. frame 72, the fastener can then be tensioned, and other fasteners can be inserted through holes 102 of concave 42, and slot 86 and a hole 88 and all fasteners are tightened to hold the first concave in position. Then, a second concave 42 is introduced, as discussed in relation to Figures 4 to 9, with the second concave 42 being bolted into position without being slid in the 92 direction, as the frame assembly 72 will have its maximum number of concaves. 42.
    [033] By installing the fasteners 100, the concaves 42 are placed under pre-tension. The parts are constructed so that the resulting forces (the pre-stresses and forces produced while operating the combine 10) always point in a direction that prevents the concave 42 from coming loose.
    [034] The present invention advantageously facilitates the task of an installer for the installation and removal of the concaves 42 by providing bottom supports 76, 78 as the concave 42 is being inserted/removed. Another advantage is that the present invention has a slot 86 for sliding a fastener 100 to provide the support and ease of installation of the concave 42 which is axially displaced in the threshing system from the inlet position.
    权利要求:
    Claims (9)
    [0001]
    1. AGRICULTURAL HARVESTER (10), comprising: a chassis (12); and a threshing and separation section (24) for threshing and separating grain from the harvested culture material, the threshing and separation section (24) being carried by the chassis (12), the threshing and separation section comprising: - at least one concave (42) which has an engagement feature (94); - at least one sliding support (76, 78); and - a frame assembly (72) for loading and coupling the concave (42) thereto, the frame assembly (72) having a support bar (74) which allows the engagement feature (94) to be engaged. hook over the support bar (74) to support one side of the concave (42), the other side of the concave (42) being coupled to the frame assembly (72) and the sliding support (76, 78) supports the concave (42) as the concave (42) is moved towards or away from the support bar (74); - at least one sliding support (76, 78) being attached to the frame assembly (72) to support a bottom (98) of the concave (42) as the concave (42) is being inserted into the frame assembly (72) allowing the concave (42) to slide and be rotated on the slide support (76, 78) thereby allowing the engagement feature (94) to engage the support bar (74); and being characterized in that the frame assembly (72) additionally includes a slotted support member (84) to which the other side of the concave (42) is loosely coupled.
    [0002]
    2. AGRICULTURAL HARVEST (10) according to claim 1, characterized in that the concave (42) is not in contact with the sliding support (76, 78) since the other side of the concave (42) is coupled to the frame assembly (72).
    [0003]
    3. AGRICULTURAL HARVEST (10), according to claim 1, characterized in that the concave (42) and the frame assembly (72) are configured so that the concave (42) is axially slid along the assembly of frame (72), a concave (42) moving along the support bar (74) and the split support member (84).
    [0004]
    4. AGRICULTURAL HARVEST (10), according to claim 3, characterized in that the at least one concave (42) is a plurality of concaves (42) and another concave (42) is inserted in the frame assembly (72) after the concave (42) has been axially slid.
    [0005]
    5. AGRICULTURAL HARVEST (10), according to claims 1 to 4, characterized in that a fastener (100) is coupled to the concave (42) in the split support member (84), and the fastener (100) is slid together with the concave (42).
    [0006]
    6. AGRICULTURAL HARVEST (10), according to claims 1 to 5, characterized in that the frame assembly (72) has an internal support (80) that is coupled to the sliding support (76, 78) to the support (74).
    [0007]
    7. AGRICULTURAL HARVEST (10), according to claim 6, characterized in that the internal support (80) is moved downwards to allow the concave (42) to be slid over it.
    [0008]
    8. AGRICULTURAL HARVEST (10) according to claims 1 to 7, characterized in that the split support member (84) has a slot (86) that has a length that is approximately half of an axial length of the frame assembly (72) with the slot (86) accommodating the sliding of the fastener (100).
    [0009]
    9. METHOD FOR LOADING A CONCAVE (42) IN A FRAME ASSEMBLY (72) of an agricultural combine (10) as defined in claims 1 to 8, and comprises the steps of: sliding the concave (42) onto the support sliding (76, 78) in a direction generally perpendicular to an axial direction (92) of the threshing and separating section (24); hooking the hook feature (94) to the support bar (74); lifting the concave (42) of the slide support (76, 78); and coupling the concave (42) to the frame assembly (72) and being characterized in that it further comprises the step of: sliding the concave (42) in the axial direction (92) after the coupling step, said step coupling includes coupling the concave (42) to a slotted support member (84).
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    US9504204B2|2014-03-05|2016-11-29|Kevin J. Kile|Removable concave threshing bars for an agricultural combine|US10405494B2|2016-09-26|2019-09-10|Agco Corporation|Threshing apparatus in a combine harvester having a multiposition stop device for setting clearance of concave grate segment|
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    US10045487B1|2017-12-05|2018-08-14|Brian Robertson|Concave cover plate|
    US11122743B2|2017-12-05|2021-09-21|Brian Robertson|Concave cover plate system and methods|
    US11116136B2|2017-12-05|2021-09-14|Brian Robertson|Concave cover plate system and methods|
    US11191215B1|2017-12-28|2021-12-07|Brian G. Robertson|Dynamically operated concave threshing bar|
    USD901546S1|2017-12-05|2020-11-10|Brian Robertson|Adjustable concave cover plate|
    US10905050B2|2017-12-05|2021-02-02|Brian Robertson|Automated, dynamic concave cover plate system and methods|
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    法律状态:
    2016-11-29| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2019-04-09| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-05-11| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/04/2016, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    BE201500155|2015-05-29|
    BEBE2015/0155|2015-05-29|
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