• 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:
    A harvester (10) has a header and feeder drive system (70) that includes a main belt drive arrangement (82, 182) and a reversing belt drive arrangement (84, 184). The forward drive belt drive (82, 182) arrangement includes a main drive belt (86, 186) and a main drive belt tensioner (106, 206) that is operated by an actuator (104, 204). The reverse belt drive (84, 184) arrangement includes a reversing motor (100, 200) and a reversing drive belt (96, 196) selectively coupled to the feed system drive system (70) by the action of the same actuator (104, 204) .
    公开号:BE1023983A9
    申请号:E20165205
    申请日:2016-03-23
    公开日:2017-10-19
    发明作者:Stijn Bailliu；Nico J M Wolfcarius；Ruben J Vancoillie
    申请人:Cnh Ind Belgium Nv；
    IPC主号:
    专利说明:

    INTEGRATED REVERSE SYSTEM WITH BELT COUPLING
    BACKGROUND OF THE INVENTION
    This invention relates generally to harvesting machines such as combine harvesters, and more particularly to the drive systems associated with header and feed mechanisms for feeding harvesting material to the machine for processing, and even more specifically to reversing drive systems that can be activated to harvest harvesting material. to remove backwards when there are circumstances where it is over-supplied (overfeeding) or when clogging occurs, or to withdraw material from the feed mechanism in another way.
    A harvesting machine is called "combine harvester" (or "picker") (or "combine harvester" in English) since this machine combines multiple harvesting functions, such as picking or cutting, threshing, separating and cleaning in a single harvesting machine. A typical combine harvester contains a header that removes the crop from a field and a feeding system that transports the crop material to a threshing rotor. The threshing rotor rotates in a perforated housing that can take the form of adjustable threshing baskets and performs a threshing operation on the crop to remove the grain from other harvesting material. Once the grain is thirsty, it falls on a grain dish through perforations in the concave. From the grain bowl the grain is cleaned at seven in a cleaning system. A cleaning fan blows air through the sieves to transport chaff and other particles of dirt to the rear of the combine. Harvest material that is not grain, such as straw from the threshing system, continues through a residual system that a straw chopper can use to process the non-grain and direct it to the rear of the combine. The cleaned grain is transported to a grain tank on board the combine. When the grain tank becomes full or needs to be emptied for other reasons, the combine is positioned near a vehicle in which the grain is to be unloaded, such as a semi-trailer, a self-unloader, a regular truck or the like; and a discharge system is driven on the combine to transfer the grain from the grain tank to the vehicle.
    More specifically, a header may include a cutter bar or other mechanism to cut or remove crop material from the field, and a reel, conveyors, augers, and / or other transport devices that collect the cut crop material and direct it to downstream processing systems in the machine. Cutting a wide swath of crop and then collecting the crop towards the center of the machine from the outer edges and thereby concentrating the crop flow when it enters the subsequent processing systems is known. Such downstream processing systems may include a rotary threshing or separation system with one or more rotors that can extend axially (from front to back) or transversely (from one side to the other) within the combine's housing and which partially or completely are surrounded by a perforated concave. The harvest material is threshed and separated by turning the rotor inside the concave. Coarser non-grain harvesting material, such as stems and leaves, is transported to the rear of the combine and unloaded onto the field. The separated cereal grains, along with a part of finer non-grain material such as chaff, dust, straw and other harvest residues, are discharged via the concave and fall onto a grain dish where they are transported to the cleaning system. Alternatively, the grain and finer non-grain may also fall directly onto the cleaning system itself.
    The cleaning system then separates the grain from the non-grain, and usually includes a fan that directs an air flow up and back through vertically arranged sieves that move back and forth in a forward and backward manner. The air stream lifts the lighter non-grain and transports it to the rear end of the combine to unload it in the field. Clean grain that is heavier, and larger pieces of non-grain that are not blown away by the air flow, fall on a surface of an upper sieve (also called short straw sieve) through which some or all of the clean grain passes through to a lower sieve (also known as a cleaning screen). Grain and non-grain remaining on the upper and lower sieves are physically separated by the reciprocating action of the sieves as the material moves backwards through the combine. All grain and / or non-grain that remains on the upper surface of the upper sieve is unloaded at the rear of the combine. Grain falling through the lower sieve ends up on a bottom tray of the cleaning system, where it is transported forward to a clean grain auger. The clean grain auger transports the grain to a grain tank on board the machine for temporary storage.
    During the normal operation of a harvesting machine, the motor on board the machine supplies power to the various systems, including the crop supply systems, via mechanical connections to the drive mechanism. For example, by using different shafts, belt drives, chain drives, and the like, various jacks, conveyors, or other mechanisms of the header and feeder systems can be driven in unison. Under some operating conditions, harvesting material can form lumps or bundles, which can form a possible blockage that can prevent further operation or even completely clog the machine. To prevent or exclude this condition, the crop material can be moved backwards relative to the normal direction of movement to remove, reposition or distribute material clumps. It is impractical and undesirable to reverse the direction of rotation of the entire drive system and the use of separate motors for the reverse drive is therefore known to reverse the direction of rotation of more limited sets of mechanisms. The main drive or the drive for the forward movement (hereinafter referred to as the main drive for short) is interrupted and the reverse drive is switched on. However, integrating the reversing drive motor into the drive mechanism can be difficult, complicated and expensive. A hydraulic motor with a suitable coupling for coupling and uncoupling the drive mechanism may require a considerable space in the machine and the various parts therefor can be expensive. Advanced systems can be difficult and expensive to repair and maintain.
    What is needed with respect to the prior art is a reversing drive arrangement that is compact and easy to work with and use to selectively disconnect the primary drive system and to couple the reversing system if necessary.
    SUMMARY OF THE INVENTION
    This invention provides a reversing drive system that is integrated into the primary drive system such that a single actuator disengages one drive when the other is coupled to drive or disconnect a reversing motor in the system.
    In one form, the embodiment is aimed at a harvesting machine that is equipped with a chassis, a header, a feed housing and a motor, all of which are supported by the chassis. A header and feed drive system drives the header and feed housing systems, and includes an arrangement with a main belt drive whose main drive belt is arranged around a first belt pulley and a second belt pulley, and a main drive belt tensioner operated by an actuator around the main drive belt with the first belt pulley and connect and disconnect with the second pulley. The arrangement with the main belt drive is driven by the motor via the interconnection with a drive line. A timing belt drive arrangement includes a reversing motor that is selectively coupled to the header and feed drive system. A reversing motor belt pulley is driven by the reversing motor, and a reversing drive belt is arranged around the reversing motor belt pulley, either on the first or on the second pulley. A belt tensioner for the timing belt drive (hereinafter referred to simply as the timing belt tensioner) couples and uncouples the reversing drive belt with the reversing motor belt pulley, and either with the first belt pulley or with the second belt pulley. A rod mechanism connects the main drive belt tensioner to the timing belt tensioner so that the operation of the actuator acts on both the main drive belt tensioner and the timing belt tensioner.
    This invention in a form thereof advantageously provides a reversing drive system integrated with the primary drive system to use an actuator that is common to the primary drive system to couple one drive system and disconnect the other drive system if necessary.
    Another advantage of a form of the integrated reversing drive system is that the system is compact and requires a minimum of space.
    BRIEF DESCRIPTION OF THE DRAWINGS
    The above and other features and advantages of this invention in its various forms and the way to achieve them will become more apparent and the invention may be better understood by reference to the following description of embodiments of the invention together with the accompanying drawings, in which:
    Figure 1 is a side view of an embodiment of a harvesting machine in the form of a combine that includes an integrated reversing system in which a belt is coupled as disclosed herein;
    Figure 2 is a side view of a header and feed drive system for the combine as shown in Figure 1;
    Figure 3 is an enlarged side view of a turning belt drive system in the header and feed drive system;
    Figure 4 is a perspective view of a main drive belt tensioner in the timing belt drive system;
    Figure 5 is a perspective view of a timing belt tensioner in the timing belt drive system;
    Figure 6 is another perspective view of a timing belt tensioner shown from a different angle than that shown in Figure 5;
    Figure 7 is a cross-sectional view of the turning belt tensioner in one operating condition;
    Figure 8 is a cross-sectional view of the timing belt tensioner in a different operating condition, different from that shown in Figure 7;
    Figure 9 is a perspective view of the timing belt drive system with various pulleys, shafts, and other parts not shown, to more clearly illustrate the main drive belt tensioner and the timing belt tensioner in one operating condition;
    Figure 10 is a perspective view of the timing belt drive system similar to that shown in Figure 9, but illustrating the main drive belt tensioner and the timing belt tensioner in a different operating state other than that shown in Figure 9;
    Figure 11 is a side view of another embodiment of a timing belt drive system, but now also with different pulleys, shafts, and other parts not shown, to more clearly illustrate the main drive belt tensioner and a timing belt tensioner of the second embodiment in one operating condition; and
    Figure 12 is a side view of the timing belt drive system as shown in Figure 11, but illustrating the main drive belt tensioner and timing belt tensioner of the second embodiment in a different operating condition, different from that shown in Figure 12.
    Corresponding references (numbers and / or letters) indicate corresponding parts throughout all the different views. The example set forth here illustrates an embodiment of the invention in one form, and such example should not be interpreted as limiting the scope of the invention in any way.
    DETAILED DESCRIPTION OF THE INVENTION
    The terms "grain", "straw" and "non-threshed ears" are used throughout this specification primarily for convenience, but it is to be understood that these terms are not intended to be limiting. So "grain" refers to that part of the harvest material that is threshed and separated from the part of the harvest material to be discarded, referred to as "harvest material that is not grain", (in English MOG = non-grain on material, further in Dutch sometimes abbreviated to non-grain) or straw. Incomplete threshed harvest material is called "non-threshed ears". Also the terms "forward", "backward", "left" and "right" when used in connection with the harvesters and / or parts thereof are usually defined with reference to the forward direction of the harvesting machine in operation, but again , they may not be interpreted as limiting terms. The terms "lengthwise", "lengthwise" and "transverse" are determined with respect to the length direction of the harvesting machine and should not be seen as limiting.
    Now with reference to the drawings and more particularly to Figure 1, a harvesting machine is shown in the form of a combine harvester 10, which generally has a chassis 12, contacting means front wheels 14 and rear wheels 16, a header 18, a feed housing 20 , an operator cabin 22, a threshing and separation system 24, a cleaning system 26, a grain tank 28, and a discharge auger 30.
    Front wheels 14 are larger flotation-type wheels and rear wheels 16 are smaller steerable wheels. The driving force is selectively applied to the front wheels 14 by a power source in the form of a diesel engine 32 and a transmission (not shown). Although combine harvester 10 is shown with wheels, it is also to be understood that combine harvester 10 may contain caterpillars, e.g., full or half caterpillars. It is further to be understood that combine harvester 10 is given by way of example only for a harvesting machine for which the integrated reversing system can be used, and that harvesting machines of other types including other types of combine harvesters, foragers and the like can use the system advantageously.
    Cutting Bar 18 is mounted on the front of the combine harvester 10 and includes a cutter bar 34 for cutting crops from a field while advancing the combine harvester 10. A rotating reel 36 supplies crop to the cutting board 18, and a double jack 38 chops crop laterally inwardly on each side of the feed housing 20. Feed housing 20 transports the cut crop to the threshing and separation system 24, and is selectively movable vertically with the aid of suitable actuators, e.g. hydraulic cylinders (not shown).
    The threshing and separation system 24 generally includes a rotor 40 that is at least partially enclosed by and rotatable within a corresponding perforated rotor cage or concave 42. The cut crops are threshed and separated by the rotation of the rotor 40 within concave 42 and larger elements such as stems, leaves and the like are discharged from the rear of combine harvester 10. Smaller elements of the harvest material, including grain and non-grain, including particles lighter than grain, such as husks, dust and straw, are discharged through the perforations of concave 42. Rotor 40 is represented in a representative sense with that rotor 40 can be more than one rotor 40 and can generally be transversely oriented in the direction of travel of combine harvester 10. Similarly, concave 42 can have more than one concave 42.
    Grain separated by threshing and separation system 24 falls into a grain bowl 44 and is further transported to the cleaning system 26. Cleaning system 26 may include an optional pre-cleaning screen 46, an upper screen 48 (also called short-straw screen), a lower screen 50 (also called cleaning screen), and a cleaning fan 52. Grain on sieves 46, 48, and 50 is subject to a cleaning action by fan 52, which provides air flow through the sieves to remove the chaff and remove other lightweight impurities, such as dust, from the grain by ensuring that this material is in the air floats to discharge it through the combine harvester straw cap 54. The grain bowl 44 and the pre-cleaning screen 46 move back and forth in the longitudinal direction of the machine around the grain and finer harvesting material that is not grain to the upper surface of the upper screen 48 to be transported. The upper screen 48 and the lower screen 50 are arranged vertically with respect to each other, and also move back and forth in the longitudinal direction of the machine about the grain through sieves 48, 50, with cleaned grain under the influence of gravity through the openings of the seven can fall 48, 50.
    Cleaned grain falls on a clean grain auger 56 which is placed transversely below and in front of the lower sieve 50. Clean grain auger 56 receives clean grain from each screen 48, 50 and from a lower bowl 62 of the cleaning system 26. Clean grain auger 56 laterally transports the clean grain to a generally elevated grain elevator 60 to feed it to the grain tank 28. Non-thinned ears fall out of the grain cleaning system 26 into a jack trough for non-thorn ears 58 and are transported via a jack for non-thorn ears 64 and the return auger 66 to the upstream end of the grain cleaning system 26 to undergo a repeated cleaning action. A pair of grain tank jacks 68 on the bottom of the grain tank 28 transport the clean grain laterally into the grain tank 28 to the unloading auger 30 to release it from the combine harvester 10.
    The non-grain continues through a remnant handling system and is discharged through the straw cap 54. The remnant handling system may include a chopper, counter knives, a windrow door and a remnant spreader, which are not shown here, but which are understood and trusted by those on whom is aware of the state of the art.
    A header and feed drive system 70, schematically illustrated in Figure 1, has a turn belt drive system 80 which is further illustrated in detail in Figure 2. In addition to the components of the turn belt drive system 80 which is described in further detail below, the header and feed drive system 70 may for example, a header belt pulley 72 that is driven by a drive belt 74 connected downstream in a drive line connection to the drive belt drive system 80, and other drive belts and drive connections 76 upstream in the drive line connection to the drive belt drive system 80. It is to be understood that the header and feed drive system 70 may include additional pulleys and belts, sprockets and chains and / or shafts and the like to drive the above and other components in the header 18 and feed housing 20, including, for example, the cutter bar 34, the reel 36 and the auger 38 .
    The header and feed drive system 70 is driven in its primary function by the motor 32 via a drive line 78 which is schematically shown in Figure 1 as a line from the engine 32. It is to be understood that the drive line 78 is a series of axles, sprocket and chainwheel drives, other belt and pulley drives, and the like may include other mechanisms driving the various combine harvester 10 systems, in addition to transferring power from the motor 32 to the header and feeder drive system 70. The primary function of the header and feed drive system 70 is operating in the forward drive direction, i.e. the drive direction and arrangement used when the combine harvester 10 is in its harvesting mode for removing a crop from a field and for processing the harvesting material.
    Referring now to Figure 2 and Figure 3, the timing belt drive system 80, which is a part of the header and feed drive system 70, includes a main belt drive arrangement 82 and a timing belt drive arrangement 84 that is operatively integrated into the main belt drive arrangement 82. The main belt drive arrangement 82 is driven by the motor 32 via drive line 78 and includes an endless main drive belt 86 disposed around a first pulley 88 on an intermediate shaft 90 and around a second pulley 92 on an upper shaft of the feed system 94.
    Intermediate shaft 90 can be drive-coupled to, for example, cutting mechanisms and initial crop pick-up mechanisms of the header 18, and the upper shaft of the feed system 94 can be drive-coupled to, for example, a chain conveyor or other feed mechanisms of feed housing 20.
    The arrangement with the timing belt drive 84 includes an endless reversing drive belt 96 arranged around a pulley 98 of a reversing motor 100 and around the aforementioned second pulley 92 on the upper axis of the feed system 94.
    An integrated belt tensioning system 102 is provided for and operatively coupled to the arrangement with the main belt drive 82 and to the arrangement with the turning belt drive 84. The integrated belt tensioning system 102 includes an actuator 104, a main driving belt tensioner 106, a turning belt tensioner 108 and a rod mechanism 110 which actuator 104 and connecting the belt tensioners 106 and 108 to the arrangement with the main belt drive 82 and the arrangement with the reverse belt drive 84.
    Belt tensioners 106 and 108 are useful for increasing or decreasing the tension of the main drive belt 86 and the reverse drive belt 96 against the pulleys they run on. Consequently, they can each be moved so that the tension of the drive belt increases sufficiently to allow the driving force to be transmitted between the pulleys and, alternatively, be moved so that the tension decreases sufficiently that the driving force between the pulleys is not transmitted. Rod mechanism 110 connects the actuator 104 and the belt tensioners 106, 108 to each other, so that the belt tensioners are operated uniformly, but in the opposite sense. When one belt tensioner is moved to increase the tension of the drive belt to which it is connected, the other belt tensioner is moved to decrease the tension of the associated drive belt. Consequently, through the operation of a single actuator 104, the arrangement with the main belt drive 82 can be disconnected when the arrangement is coupled with the timing belt drive 84, or the arrangement with the reverse belt drive 84 can be disconnected when the arrangement is coupled with the main belt drive 82.
    The main drive belt tensioner 106 and the reverse belt tensioner 108 are spring-loaded arrangements configured to apply a prescribed force when driven by the operation of the actuator 104 and the interconnection of the rod mechanism 110. With reference now more specifically to Figure 4 the main drive belt tensioner 106 includes a non-driven pulley 112 that can be moved to and away from the outside of the main drive belt 86. Non-driven pulley 112 is held against a tension arm 114 by a rotatable connection 115, and the tension arm 114 is on the combine harvester 10 attached via a hinged attachment 116. The tensioning arm 114 includes a hinge 118 for slidably receiving a tensioning rod 120 extending through hinge 118. A pin 122 extends laterally with respect to the tensioning rod 120 under hinge 118. A spring 124 is mounted on the tension rod 120 between an upper stop 1 26 and the hinge 118. The upper end of the tension rod 120 is connected to a coupling arm 128 by a hinged connection 130. An indicator or stroke limiter 132 limits the compression of spring 124 as the coupling arm 128 moves down to the tension arm 114. A belt guide 134 is provided adjacent to, but spaced from, the non-driven pulley 112 to keep the main drive belt 86 sufficiently close to non-driven pulley 112 when the non-driven pulley 112 is moved away so that the main drive belt 86 is again will be carried by the non-driven pulley 112 when the non-driven pulley 112 is moved towards it.
    When the clutch arm 128 moves, the tension rod 120 slides relative to hinge 118, thereby pressing the spring 124 between the hinge 118 and the upper stop 126 or releasing the spring. Hinge 118 pivots in the tension arm 114 if necessary, and the tension arm 114 pivots around the pivotal mounting 116. Tension rod 120 pivots around the pivotal connection 130 relative to the clutch arm 128. Consequently, the upward and downward movement of clutch arm 128 is shown in Figure 4 transferred to the tensioning arm 114, thereby causing non-driven pulley 112 to move towards or away from the main drive belt 86 to increase or decrease the tension in the main drive belt 86.
    With reference now to more specifically to Figures 5 & 6, the timing belt tensioner 108 includes an actuator rod 136 with an indicator / stroke limiter 138 that includes a spring 139 (Figures 7 & 8) mounted on the actuator rod 136. Actuator rod 136 extends through a hinge 140 rotatably held in the coupling arm 128. A U-shaped bracket 142 encloses actuator rod 136 below hinge 140 and above indicator / stroke limiter 138 and spring 139. An upper stop 144 is mounted on actuator rod 136, above U-shaped bracket 142. An upper end of the actuator rod 136 is held against a reversing arm 146 by a hinged connection 148.
    Figure 7 and Figure 8 are cross-sectional views of the timing belt tensioner 108 and show the relative positions and arrangements for the clutch arm 128, the reversing arm 146, and the actuator 104, the arrangement with the timing belt drive 84 being disconnected (Figure 7) and coupled ( Figure 8). When the coupling arm 128 moves, a sliding movement occurs between the actuator rod 136 and the hinge 140, thereby compressing the spring 139 or releasing the spring in indicator / stroke limiter 138 between the hinge point 140 and the bracket 142 against the upper stop 144 The hinge 140 rotates in the clutch arm 128 if necessary, and the actuator rod 136 pivots about the hinged connection 148 relative to the reversing arm 146. Consequently, the upward and downward movement of the clutch arm 128 is transmitted to the reversing arm 146 and causes the reversing arm 146 moves up and down since there is a hinged connection 148 with the actuator rod 136 at its end.
    Actuator 104 can be a linear actuator, such as a hydraulic or pneumatic cylinder; however, other types of actuators can also be used. Actuator 104 is connected around a hinged connection 150 with the structure of combine harvester 10 and at the opposite end around a hinged connection 152 with coupling arm 128, as shown in Figures 2 & 3. Consequently, the extending or retracting actuator 104 causes a movement of the clutch arm 128, which results in the upward or downward movements of belt tensioners 106, 108 as described above.
    Also with reference to Figures 2 and 3, and to Figures 9 and 10, at an opposite end of the reversing arm 146 of its pivotal connection 148 to the actuator rod 136, a pivoting connection 154 holds the reversing arm while allowing rotation around it . The reversing motor 100 is held in the reversing arm 146 between the hinged connection 148, 154. The reversing motor belt pulley 98 is driven by reversing motor 100 and is positioned within the loop formed by the endless reversing drive belt 96. Relative to the orientation shown at in the drawings, the upward movement of reversing arm 146 at the end with the hinged connection 148 therefore causes the opposite end of reversing arm 146 to pivot counterclockwise about a hinged connection 154. As a result, the reversing motor 100 and the reversing motor belt pulley 98 move away from second pulley 92, thereby increasing the tension of the reversing drive belt 96. Conversely, the downward movement of the reversing arm 146 at the end with the hinged connection 148 causes the opposite end of the reversing arm 146 to pivot around the hinged connection 154. As a result, the reversing motor 100 and the pulley 98 move from the reversing motor to the second pulley 92, thereby reducing the tension on the reversing drive belt 96.
    Additional belt guides or belt supports 156, 158 are provided for the main drive belt 86 and the reverse drive belt 96 to hold the drive belts in the vicinity of the belt disks when the tension is released. Conveyor belt guides or belt supports 156, 158 facilitate the proper release of the belt pulleys, and ensure that the inactive belt belts do not make contact with the pulleys, but remain sufficiently close to the pulleys when the tension is released so that the pulleys are removed would take the drive belts again when the tension is again applied to the drive belts.
    Figure 9 and Figure 10 are simplified illustrations showing the arrangement with a main belt drive 82 and the arrangement with a reverse belt drive 84 without different pulleys and other associated equipment so that the operation of an integrated belt tensioning system 102 can be seen more clearly. Figure 9 illustrates the normally operating configuration when combine harvester 10 is harvesting crops. The arrangement with the main belt drive 82 is coupled and the arrangement with the timing belt drive 84 is disconnected. Actuator 104 is extended, which has ensured that the clutch arm 128 is turned counterclockwise and the reversing arm 146 is turned clockwise. The main drive belt tensioner 106 is thus moved against the main drive belt 86 so that the tension generated therein is sufficient to transmit driving force between the first pulley 88 and a second pulley 92 by being entrained by the main drive belt 86. Turning it clockwise the reversing arm 146 has caused the reversing motor belt pulley 98 and the reversing motor 100 to move downward and thus causing a reversing of the reversing drive belt 96. The reversing drive belt 96 then lies idle on the reversing motor belt pulley 98 and on the second pulley 92. The reversing motor 100 remains inactive.
    Figure 10 illustrates the state when the arrangement is coupled to the timing belt drive 84. Actuator 104 was retracted, causing the clutch arm 128 to rotate clockwise and the reversing arm 146 to rotate counterclockwise. Consequently, the main drive belt tensioner 106 is moved away from the main drive belt 86, causing slackening so that no driving force is transmitted between the first pulley 88 and the second pulley 92 because the drive belt 86 is loose on it. Turning the reversing arm 146 counterclockwise has caused the reversing motor belt pulley 98 and reversing motor 100 to move upwards and thus generating sufficient tension in the reversing drive belt 96 to transfer the driving force of the reversing motor 100. The reversing motor 100 is operated to move the mechanisms of the supply housing 20 opposite to the normal supply direction. It is to be understood that the reversing motor 100 can usually be operated in both directions, but in the forward direction it will operate much slower than the normal speed achieved by the arrangement with a main belt drive 82. Consequently, the feed mechanisms may be obstructed or lumps of crop material to be ejected or removed, if necessary, repeatedly moved forwards and backwards. Furthermore, with actuator 104 in an intermediate or neutral position, neither the main drive belt 86 nor the reverse drive belt 96 can be sufficiently tightened to drive pulleys with it, whereby the first pulley 88 and the second pulley 92 can be turned by hand.
    The concepts of this invention can be determined in other ways. Figures 11 and 12 illustrate a timing belt drive system 180 including an arrangement with a main belt drive 182 and an arrangement with a timing belt drive 184, with a main drive belt 186 and a reverse drive belt 196, respectively. A reverse motor belt pulley 198 and a reverse motor 200 are provided for the arrangement with the timing belt drive 184 An integrated belt tensioning system 202 includes an actuator 204, a main drive belt tensioner 206, a timing belt tensioner 208 and an interconnection rod mechanism 210. The main drive belt tensioner 206 is essentially similar to the main drive belt tensioner 106 described hereinbefore, and includes a non-driven belt pulley 212 and a tensioning arm 214 which is similar to the non-driven pulley 112 and the tensioning arm 114 described above. A tensioning rod 220 comprises a spring 224 and is connected in a similar manner as tensioning roller 120 to the coupling arm 228, the spring 124 and the previously described coupling arm 128.
    Return belt drive system 180 differs from the return belt drive system 80 in the first instance in that the return belt tensioner 208 is similar to the main drive belt tensioners 106 and 206. Return belt tensioner 208 comprises a non-driven pulley 262 on a tensioning arm 264 connected to the machine on a hinged mounting 266 A tension rod 270 includes a spring 274. Tension rod 270 connects the clutch arm 228 with the tension arm 264 such as the interconnection of the tension rod 220 with clutch arm 228 and tension arm 214. In the reverse belt drive system 180, the reversing motor 200 and the reversing motor belt pulley 198 are essentially fixed positioned relative to the reversing drive belt 196 and not moving relative to the reversing drive belt 196. Tensioning or releasing the reversing drive belt 196 is caused by the movement of the non-driven pulley 262 which is operated by tension arm 264 by the operation of the actuator 204 Actuator 204 operates the main drive belt tensioner 206 and the timing belt tensioner 208 simultaneously, as described for the previous embodiment, through the interconnection of the rod mechanism 210.
    Although this invention has been described with respect to at least one embodiment and one variation thereof, it can be further modified within the scope of this disclosure and the following claims. This patent application is therefore intended to cover all variations and uses or modifications of the invention by using its general principles as defined in the claims. Furthermore, this patent application is intended to cover deviations from this disclosure that are possible within known or customary practices of the prior art to which this invention relates and which fall within the limits of the appended claims.
    权利要求:
    Claims (12)
    [1]
    CONCLUSIONS:
    A harvesting machine (10) for use in agriculture comprising: a header and feed drive system (70) for operating a mower (18) and a feed housing (20), which has a main belt drive arrangement (82, 182) ) containing a main drive belt (86, 186) disposed around a first belt pulley (88) and a second belt pulley (92) and a main drive belt tensioner (106, 206) connected to an actuator (104, 204) around the main drive belt (86, 186) to be coupled to the first pulley (88) and the second pulley (92): and a reversing motor (100, 200) which includes a reversing motor belt pulley (98, 198) selectively drive coupled and disengaged from the header and supply drive system (70); characterized by: a reversing drive belt (96, 196) disposed around the reversing motor belt pulley (98, 198) and the second pulley (92); a reversing belt tensioner (108, 208) for engaging the reversing drive belt (96, 196) with the reversing motor belt pulley (98, 198) and the second pulley (92); and a rod mechanism (110, 210) connecting the main drive belt tensioner (106, 206) with the timing belt tensioner (108, 208) and the actuator (104, 204) about both the main drive belt tensioner (106, 206) and the timing belt tensioner (108, 208) to operate with the actuator (104, 204).
    [2]
    Harvesting machine according to claim 1, characterized in that the rod mechanism (110) comprises a reversing arm (146) rotatable about a hinged connection (148); and the reversing motor (100) is supported by the reversing arm (146)
    [3]
    Harvesting machine according to claim 1, characterized in that the turning belt tensioner (208) comprises a non-driven pulley (262).
    [4]
    Harvesting machine according to any of the preceding claims 1-3, characterized in that the actuator (104, 204) is a linear actuator.
    [5]
    Harvesting machine according to claim 4, characterized in that the actuator (104, 204) is a hydraulic cylinder.
    [6]
    The harvesting machine of claim 1, characterized in that the actuator (104) is connected to the reversing motor (100) to move the reversing motor (100) to change the tension on the reversing drive belt (96).
    [7]
    Harvesting machine according to claim 1, characterized in that the reversing motor (192) is connected in a fixed position with respect to the belt around the reversing belt drive (196).
    [8]
    Harvesting machine according to claim 1, characterized in that the rod mechanism (110) comprises a coupling arm (128) connected to the actuator (104), and a tensioning arm (114) and a reversing arm (146), all of which are connected to the coupling arm ( 128) to be moved simultaneously by the actuator (104).
    [9]
    A harvesting machine according to claim 8, characterized in that the reversing arm (146) comprises a connection (148) at one end thereof with the coupling arm (128) and a connection (154) at an opposite end thereof around which the reversing arm (146) rotates, and wherein the reversing motor (100) is supported on the reversing arm (146) between the ends.
    [10]
    The harvesting machine according to claim 1, characterized in that the main drive belt tensioner (206) and the return belt tensioner (208) each comprise a non-driven pulley (212, 262).
    [11]
    Harvesting machine according to claim 1, characterized in that the rod mechanism (210) comprises a coupling arm (228) connected to the actuator (204), and a first and a second tensioning arm (214, 264), each of which is connected to the coupling arm ( 228) to be moved simultaneously through the actuator (204), the first and second tensioning arms (214, 264) carrying the first and the second non-driven pulley (212, 262), respectively.
    [12]
    Harvesting machine according to claim 1, characterized in that the reversing motor (100) is arranged to move to and away from the reversing drive belt (96).
    类似技术:
    公开号 | 公开日 | 专利标题
    BE1023983A9|2017-10-19|INTEGRATED REVERSE SYSTEM WITH BELT COUPLING
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    同族专利:
    公开号 | 公开日
    US20170273243A1|2017-09-28|
    BE1023983B9|2017-10-19|
    BE1023983A1|2017-10-02|
    BR102017005704A2|2017-09-26|
    EP3228175B1|2018-12-12|
    US10299436B2|2019-05-28|
    EP3228175A1|2017-10-11|
    BE1023983B1|2017-10-03|
    引用文献:
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    US2930246A|1958-12-12|1960-03-29|Deere & Co|Belt drive transmission|
    US3396590A|1966-02-02|1968-08-13|Holcombe M. Verdery Jr.|Belt transmission device|
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    FR2667123A1|1990-09-21|1992-03-27|Staub Tracteurs Motocult|Disengageable belt-type transmission, with processing in both directions of rotation|
    CA2110778A1|1993-12-06|1995-06-07|Kevin Charles Brosinsky|Combine feeder reverser|
    GB2289201A|1994-05-07|1995-11-15|Ford New Holland Nv|Drive reversal for agricultural harvester|
    KR0129767Y1|1996-01-17|1998-12-01|엄성섭|Wheel driving apparatus of a loader|
    US5778644A|1996-08-09|1998-07-14|Deere & Company|Crop harvesting platform having a reversible drive for the reel, cutterbar center-feed augers and conditioner rolls|
    US5996324A|1998-01-22|1999-12-07|Case Corporation|Hydraulic feeder reverser|
    GB0212649D0|2002-05-31|2002-07-10|Ford New Holland Nv|Utility machinery and associated reversible feeder mechanisms|
    US6644006B1|2002-07-19|2003-11-11|New Holland North America, Inc.|Remote reverse control for pick-up rotor|
    BE1020277A3|2011-10-17|2013-07-02|Cnh Belgium Nv|REVERSE MECHANISM AND TRANSPORTATION DEVICES AND AGRICULTURAL BALER EQUIPPED FOR THEM.|
    CN109937683B|2013-09-27|2020-11-03|株式会社久保田|Combine harvester|
    DE102014004227A1|2014-03-25|2015-10-01|Claas Selbstfahrende Erntemaschinen Gmbh|Cutting unit for a harvester|DE102017122706A1|2017-09-29|2019-04-04|Claas Selbstfahrende Erntemaschinen Gmbh|Composite belt, use of a compound belt and belt drive of a self-propelled combine harvester|
    DE102017122714A1|2017-09-29|2019-04-04|Claas Selbstfahrende Erntemaschinen Gmbh|Composite belt, use of a compound belt and belt drive of a self-propelled combine harvester|
    DE102018113006A1|2018-05-30|2019-12-05|Claas Selbstfahrende Erntemaschinen Gmbh|Belt transmission and method for its operation|
    DE102020111993A1|2020-05-04|2021-11-04|Claas Selbstfahrende Erntemaschinen Gmbh|Drive system for a self-propelled harvesting machine|
    CN113079827A|2021-03-03|2021-07-09|重庆家户农机有限公司|Reversing control mechanism of small harvester|
    法律状态:
    2018-01-31| FG| Patent granted|Effective date: 20171003 |
    2021-12-16| MM| Lapsed because of non-payment of the annual fee|Effective date: 20210331 |
    优先权:
    申请号 | 申请日 | 专利标题
    BE20165205A|BE1023983B9|2016-03-23|2016-03-23|INTEGRATED REVERSE SYSTEM WITH BELT COUPLING|BE20165205A| BE1023983B9|2016-03-23|2016-03-23|INTEGRATED REVERSE SYSTEM WITH BELT COUPLING|
    BR102017005704-6A| BR102017005704A2|2016-03-23|2017-03-21|HARVEST AGRICULTURAL|
    US15/467,797| US10299436B2|2016-03-23|2017-03-23|Integrated reversing system with belt engagement|
    EP17162553.6A| EP3228175B1|2016-03-23|2017-03-23|Integrated reversing system with belt engagement|
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