Harvester drive system and harvester

Abstract

The utility model provides a kind of harvester transmission system and harvester, including engine, main clutch, primary clutch, secondary clutch and header counter-rotation device, main clutch is set between first transmission wheel and second transmission wheel to control engine power output;Primary clutch device is set between third transmission wheel and fourth transmission wheel, for cutting off the power transmission between first transmission shaft and second transmission shaft;Secondary clutch device is set between seventh transmission wheel and eighth transmission wheel, and secondary clutch device is used to control the power input of header;Header counter-rotation device is set to the other end of header driving shaft, when header is blocked, secondary clutch device disconnects with the power connection of engine, and header counter-rotation device drives header counter-rotation.The utility model provides a kind of harvester transmission system and harvester, using the setting form of three-stage clutch, can realize harvester step-by-step starting, the independent operation control of header, can avoid engine flameout, improves the reliability of harvester operation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery transmission, and in particular to a harvester transmission system and a harvester. Background Technology

[0002] In existing harvester operations, when the header becomes clogged, the excessive load on the entire machine can easily cause it to stall, impacting operational efficiency. A common method is to reverse the header after stopping the machine to feed and discharge straw. However, this requires shutting down the entire machine, preventing other harvester components from operating normally. Unprocessed straw remains in the cutter's feed channel behind the header, and this residue cannot be processed during the header retraction process, reducing harvesting efficiency. Furthermore, the cutting components can operate normally during header reversal, posing a safety hazard and affecting operational safety. Therefore, it is necessary to provide a harvester transmission system that overcomes these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a harvester transmission system and harvester that can reverse the header without stopping the machine, thus solving the problem of the harvester stalling due to excessive load during startup or operation, and improving the harvester's operating efficiency and transmission reliability.

[0004] According to one aspect of the present invention, a harvester transmission system is provided, comprising:

[0005] An engine, the engine including a first drive wheel;

[0006] A first drive shaft is provided along the width direction of the harvester;

[0007] The second transmission wheel is disposed at one end of the first transmission shaft, and the second transmission wheel is disposed on the same side as the first transmission wheel and connected by a belt.

[0008] A main clutch, which is located between the first drive wheel and the second drive wheel to control the engine power output;

[0009] The third transmission wheel is sleeved on the other side of the first transmission shaft;

[0010] The second drive shaft is arranged parallel to the first drive shaft. A fourth drive wheel and a fifth drive wheel are respectively sleeved at both ends of the second drive shaft. The fourth drive wheel and the third drive wheel are arranged on the same side and connected by a belt.

[0011] A primary clutch device is disposed between the third transmission wheel and the fourth transmission wheel, and is used to cut off the power transmission between the first transmission shaft and the second transmission shaft;

[0012] A third drive shaft is arranged parallel to the second drive shaft. A sixth drive wheel is provided at one end of the third drive shaft. The sixth drive wheel is arranged on the same side as the fifth drive wheel and is connected by a belt. A seventh drive wheel is provided at the other end of the third drive shaft.

[0013] The cutting table drive shaft is arranged parallel to the front side of the third transmission shaft. An eighth transmission wheel is provided at one end of the cutting table drive shaft. The eighth transmission wheel is arranged on the same side as the seventh transmission wheel and is connected by a belt.

[0014] A two-stage clutch device is disposed between the seventh transmission wheel and the eighth transmission wheel. The two-stage clutch device is used to control the power input of the cutting table.

[0015] A header reversing device is located at the other end of the header drive shaft; when the header is blocked, the secondary clutch disconnects from the engine power connection, and the header reversing device drives the header to reverse.

[0016] By setting up a multi-stage clutch, the header transmission system and the harvester's rear-end transmission system will not conflict when the header reverses, enabling the header and the harvester's rear-end body to operate independently, which can improve the harvester's operating efficiency and ensure the reliability of the harvester's transmission.

[0017] Preferably, the cutting table reversing device includes a reversing drive and a reversing gear set, the reversing drive being disposed on the rear side of the cutting table; the reversing gear set includes a first gear sleeved on the drive shaft of the cutting table, a second gear being drivenly connected to the reversing drive, the second gear meshing with the first gear, and the reversing drive driving the second gear to rotate.

[0018] Preferably, the reversing drive includes a reversing drive shaft and a shift fork mechanism. The second gear is loosely fitted on the reversing drive shaft. The reversing drive shaft also includes a first sliding gear, a second sliding gear, and a third sliding gear sequentially fitted on the reversing drive shaft. The third sliding gear is fitted on a rotating shaft sleeve, and the second gear is fitted on the rotating bearing. The second sliding gear is connected to the shift fork mechanism through a splined sleeve.

[0019] Preferably, the cutting table reversing device further includes a third gear and a first reversing output shaft. The first reversing output shaft is arranged parallel to the reversing transmission shaft. The third gear is sleeved on the first reversing output shaft and meshes with the second gear.

[0020] Preferably, a one-way bearing is provided on the other side of the first reverse output shaft relative to the third gear, and the one-way bearing is connected to the cutter drive.

[0021] Preferably, the main clutch includes a main clutch cylinder and a main clutch tensioning device; the first-stage clutch device includes a first clutch cylinder and a first tensioning device; and the second-stage clutch device includes a second clutch cylinder and a second tensioning device. The oil supply path of the first clutch cylinder is longer than that of the main clutch cylinder, and the second clutch cylinder and the first clutch cylinder are supplied with oil by different oil pumps.

[0022] Preferably, the cutting table reversing device includes a fixed shaft horizontally arranged above the reversing transmission shaft, with both ends of the fixed shaft fixed to the side plate, and one end of the shift fork mechanism sleeved on the fixed shaft.

[0023] Preferably, the cutting table drive shaft includes a gear drive output shaft and a cutting table drive input shaft, the gear drive output shaft and the cutting table drive input shaft are connected by a universal joint, and the gear drive output shaft passes through the side plate.

[0024] Preferably, the reverse drive is located on one side of the reverse transmission shaft, and the reverse drive is a reverse motor or a reverse motor. The reverse motor and the reverse motor are electrically connected to the harvester control system.

[0025] Preferably, the device further includes a secondary shredding device, which includes a fourth drive shaft disposed between the second drive shaft and the third drive shaft. A shredding drive gear is disposed on one side of the fourth drive shaft, and the shredding drive gear is connected to the fourth drive shaft via a belt.

[0026] This utility model also provides a harvester, which includes the harvester transmission system described in any of the above claims.

[0027] This utility model provides a harvester transmission system and a harvester, which has a staged start function, which can improve the reliability of the harvester transmission system. Through the cooperation of the two-stage clutch device and the header reversing device, the header can be reversed without the whole machine shutting down, solving the problem of header blockage, improving the harvester's operating efficiency and ensuring operating safety. Attached Figure Description

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] Figure 1 This is a schematic diagram of the right-side transmission of a harvester, provided for an embodiment of this utility model.

[0030] Figure 2A schematic diagram of the left-side transmission of a harvester provided for an embodiment of this utility model.

[0031] Figure 3 A schematic diagram of a cutting platform and reversing device provided for an embodiment of this utility model.

[0032] Figure 4 A schematic diagram of a harvester transmission system provided for an embodiment of this utility model.

[0033] Figure 5 A schematic diagram of a cutting table reversing device provided for an embodiment of this utility model.

[0034] Figure 6 A cross-sectional schematic diagram of a reversible transmission shaft provided for an embodiment of this utility model.

[0035] Explanation of icon numbers:

[0036] 100 - Harvester transmission system; 10 - Engine; 101 - First drive wheel; 11 - Main clutch; 111 - Main clutch cylinder; 112 - Main clutch tensioning device; 20 - First drive shaft; 201 - Second drive wheel; 202 - Third drive wheel; 30 - Second drive shaft; 301 - Fourth drive wheel; 302 - Fifth drive wheel; 31 - First-stage clutch device; 311 - First clutch cylinder; 312 - First tensioning device; 40 - Third drive shaft; 401 - Sixth drive wheel; 402 - Seventh drive wheel; 50 - Header drive shaft; 501 - Eighth drive wheel; 51 - Second-stage clutch device; 511 - Second clutch cylinder; 512 - Second... Tensioning device; 52-Cutter drive input shaft; 53-Gear drive output shaft; 54-Universal joint; 60-Cutter reversing device; 61-Reversing drive; 62-Reversing gear set; 621-First gear; 622-Second gear; 623-Third gear; 63-Reversing drive shaft; 631-First sliding gear; 632-Second sliding gear; 633-Third sliding gear; 634-Rotating bearing; 635-Rotating bushing; 64-Shift fork mechanism; 641-Fixed shaft; 641-Splined gear sleeve; 65-First reversing output shaft; 651-One-way bearing; 70-Secondary shredding device; 71-Fourth drive shaft; 701-Shredding drive gear. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0043] See Figures 1 to 6As shown, in a corn harvester that harvests both ears and stalks, a chopping device is installed on the harvester body, located behind the header, and connected to the header feed inlet. The rear chopping device includes chopping blades and a blower. After the straw is chopped, it is thrown into the storage space by the blower. An embodiment provides a harvester transmission system capable of reliably transmitting power from the engine 10 to the harvester header. The transmission system includes a first drive wheel 101 mounted on the engine 10 and a first drive shaft 20 arranged along the width direction of the harvester. The first drive shaft 20 transmits power from the engine 10 to the other side of the harvester. A second drive wheel 201 is mounted at one end of the first drive shaft 20, and the second drive wheel 201 is connected to the first drive wheel 101 via a belt and is located on the same side of the harvester. A main clutch 11 is used to control the power output of the engine 10. The main clutch 11 is located between the first drive wheel 101 and the second drive wheel 201, and controls the power output of the engine 10 by controlling the tension of the drive belt. The third transmission wheel 202 is located at the other end of the first transmission shaft 20, corresponding to the position of the second transmission wheel 201 on the first transmission shaft 20 and rotating synchronously. Power from the engine 10 is transmitted to the second transmission wheel 201, causing the second transmission shaft 30 to rotate and transmit power to the third transmission wheel 202. The second transmission shaft 30 is horizontally positioned relative to the first transmission shaft 20, with the harvester's operating direction as forward. The second transmission shaft 30 is located in front of the first transmission shaft 20. A fourth transmission wheel 301 and a fifth transmission wheel 302, rotating synchronously with the second transmission shaft 30, are respectively mounted on both ends of the second transmission shaft 30. The fourth transmission wheel 301 and the third transmission wheel 202 are located on the same side and connected by a belt for transmission. A primary clutch device 31 is provided between the third transmission wheel 202 and the fourth transmission wheel 301 to disconnect the power transmission between the first transmission shaft 20 and the second transmission shaft 30. In a specific implementation, the second drive shaft 30 is a fan shaft, with a fan impeller arranged circumferentially around it. The fan's function is to throw straw from the conveying channel behind the cutter head to a pre-set storage space. The third drive shaft 40 is parallel to the second drive shaft 30 and located in front of it. A sixth drive wheel 401 is located at one end of the third drive shaft 40, sharing the same side as the fifth drive wheel 302 and connected by a belt. A seventh drive wheel 402 is located at the other end of the third drive shaft 40. The sixth drive wheel 401, the seventh drive wheel 402, and the third drive shaft 40 rotate synchronously. The cutter head drive shaft 50, which transmits power to the cutter head, is located in front of the third drive shaft 40. An eighth drive wheel 501 is located at one end of the cutter head drive shaft 50, sharing the same side as the seventh drive wheel 402 and connected by a belt. Power is transmitted from the seventh drive wheel 402 to the eighth drive wheel 501, driving the cutter head operation. The secondary clutch device 51 is located between the seventh drive wheel 402 and the eighth drive wheel 501, and is used to control the power transmission between the engine 10 and the cutting platform.The other end of the header drive shaft 50 is also equipped with a header reversing device 60. In this embodiment, when the header is blocked, the secondary clutch device 51 disconnects the power connection between the header drive shaft 50 and the engine 10, and the header reversing device 60 drives the header to reverse, without affecting the operation of the components on the main body of the harvester. Specifically, when the header of the harvester is blocked, due to the large load, high fuel consumption of the harvester, or the engine 10 directly shutting off, it is necessary to perform a header reversal operation, that is, to spit out the straw that was originally fed in by reversing the header to avoid more serious blockage. At this time, it is only necessary to disconnect the secondary clutch device 51, and the header reversing device 60 drives the header drive shaft 50 to reverse, so that the header reversal is achieved without affecting the normal operation of the rear body of the harvester.

[0044] In a preferred embodiment, the header drive shaft includes a gear drive output shaft 53 and a header drive input shaft 52. The gear drive output shaft 53 and the header drive input shaft 52 are connected by a universal joint 54, and the gear drive output shaft 53 passes through the side plate. By using the universal joint 54, damage to the header drive shaft and failure of the header drive system can be avoided when the harvester is overloaded, and the torque can be reduced.

[0045] In a specific implementation, the main clutch 11 is equipped with a main clutch cylinder 111 and a main clutch tensioning device 112. The first-stage clutch device 31 includes a first clutch cylinder 311 and a first tensioning device 312, and the second-stage clutch device 51 includes a second clutch cylinder 511 and a second tensioning device 512. The oil supply line of the first clutch cylinder 311 is longer than that of the main clutch cylinder 111, and the first clutch cylinder 311 and the main clutch cylinder 111 are driven synchronously by the harvester control system. Since the oil supply line of the first clutch cylinder 311 is longer than that of the main clutch cylinder 111, the main clutch cylinder 111 acts first during the engine 10 start-up process, and the main clutch tensioning device 112 tensions the belt first to output power. During engine 10 startup, the oil supply path of the first clutch cylinder 311 is shorter than that of the main clutch cylinder 111. Therefore, the action time of the first clutch cylinder 311 is slower than that of the main clutch cylinder 111. At the moment when the main clutch tensioning device 112 tensions the belt to transmit power for engine 10 startup, the oil supply path of the first clutch cylinder 311 is longer and has not yet been activated. Therefore, the first tensioning device 312 is not driven. At this time, there is no power connection on the second drive shaft 30. As a result, the overall load pressure is low, which can prevent engine stalling during startup. The second clutch cylinder 511 is supplied with oil from different oil pumps as the main clutch cylinder 111 and the first clutch cylinder 311. The second clutch cylinder 511 can be controlled independently. The second clutch cylinder 511 controls the second tensioning device 512 to tension the belt, ensuring independent transmission of the header. During the reverse rotation of the header, it can cut the straw separately without affecting the function of the rear end of the harvester. Therefore, the straw in the rear chopping channel can be processed in time, which can improve the working efficiency of the harvester and eliminate the need to stop the machine when the header is blocked.

[0046] The header reversing device 60 includes a reversing drive 61 and a reversing gear set 62. The reversing drive 61 is located at the rear of the header and is connected to the header drive shaft 50. In specific embodiments, the reversing drive 61 is a reversing motor or a reverse motor; the form of the reverse motor or reverse motor is not limited here. The reversing gear set 62 performs power transmission or reversing functions on the header. Specifically, the reversing gear set 62 includes a first gear 621 mounted on the header drive shaft 50 and a second gear 622 connected to the reversing drive 61. The second gear 622 meshes with the first gear 621. When the reversing drive 61 is working, it drives the second gear 622 to rotate. The rotation direction of the second gear 622 is opposite to that of the first gear 621. The reverse drive 61 is also provided with a reverse transmission shaft 63 and a shift fork mechanism 64. The second gear 622 is loosely fitted on the reverse transmission shaft 63. The reverse transmission shaft 63 is sequentially fitted with a first sliding gear 631, a second sliding gear 632 and a third sliding gear 633. The third sliding gear 633 is fitted on a rotating bushing 635. The second gear 622 is fitted on a rotating bearing 634. The second sliding gear 632 and the shift fork mechanism 64 are connected through a splined sleeve 641. When the reverse drive 61 is not working, the second gear 622 idles on the reverse transmission shaft 63. At this time, the function of the second gear 622 is only to transmit power. When the reverse drive 61 is working, the shift fork mechanism 64 slides on the reverse transmission shaft 63. Subsequently, the spline sleeve 641 meshes with the second sliding gear 632 and the third sliding gear 633 to achieve a transmission connection. The third sliding gear 633 is integrally set with the second gear 622. The second sliding gear 632 and the third sliding gear 633 rotate synchronously. When the reverse drive 61 drives the reverse transmission shaft 63 to rotate, the second gear 622 rotates synchronously with the reverse transmission shaft 63, thereby rotating the first gear 621 that meshes with the second gear 622, further driving the cutter table to reverse. The cutter table reversing device 60 also includes a fixed shaft 641 horizontally set above the cutter table drive shaft 50. The two ends of the fixed shaft 641 are respectively set on the side plate. One end of the shift fork mechanism 64 is sleeved on the fixed shaft 641 and slides on the fixed shaft 641.

[0047] In a preferred embodiment, the reverse drive 61 further includes a third gear 623 and a first reverse output shaft 65. The first reverse output shaft 65 is arranged parallel to the reverse transmission shaft 63. The third gear 623 is fitted onto the first reverse output shaft 65 and meshes with the second gear 622. The rotation direction of the third gear 623 is the same as the rotation direction of the first gear 621. A one-way bearing 651 is provided on the other side of the first reverse output shaft 65 opposite to the third gear 623. The one-way bearing 651 is connected to the cutter drive. When the reverse drive 61 drives the third gear 623 to rotate, the one-way bearing 651 remains stationary, thereby stopping the cutter and avoiding safety hazards caused by the cutter continuing to operate.

[0048] The harvester transmission system is also equipped with a secondary shredding device 70, which makes the straw particles larger. The secondary shredding device 70 includes a fourth transmission shaft 71 located between the second transmission shaft 30 and the third transmission shaft 40. A shredding transmission gear 701 is provided on one side of the fourth transmission shaft 71. The shredding transmission gear 701 is located on the same side as the fourth transmission wheel 301 and is connected by a belt, so that the first clutch device can also control the operation of the secondary shredding device 70.

[0049] In a specific implementation, a reversing motor is located at one end of the reversing drive shaft 63. The reversing motor is electrically connected to the harvester control system. When the harvester control system detects a blockage in the header, the second clutch device disconnects the power transmission between the header and the engine 10. The harvester control system sends a signal to the reversing motor to start it. Simultaneously, the signal also drives the shift fork mechanism 64 to slide on the reversing drive shaft 63, causing the third sliding gear 633, which is integrally formed with the second gear 622, to be connected to the second sliding gear 632 via a splined sleeve 641. The third gear 623 and the reversing drive shaft 63 are synchronously driven. When a reversing motor is used, an electrical signal drives the solenoid valve to open, supplying oil to the reversing motor, thereby achieving header reversal.

[0050] The harvester transmission system provided by this utility model, by setting up a multi-stage clutch, can not only avoid the situation of engine starting and stopping, but also realize the reverse rotation of the header when the header is blocked and the load is too large, without having to shut down the entire harvester for maintenance. This can improve the working efficiency of the harvester, improve the transmission reliability of the harvester, and achieve safe operation.

[0051] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A harvester transmission system, characterized in that, include: An engine, the engine including a first drive wheel; A first drive shaft is provided along the width direction of the harvester; The second transmission wheel is disposed at one end of the first transmission shaft, and the second transmission wheel is disposed on the same side as the first transmission wheel and connected by a belt. A main clutch, which is located between the first drive wheel and the second drive wheel to control the engine power output; The third transmission wheel is sleeved on the other side of the first transmission shaft; The second drive shaft is arranged parallel to the first drive shaft. A fourth drive wheel and a fifth drive wheel are respectively sleeved at both ends of the second drive shaft. The fourth drive wheel and the third drive wheel are arranged on the same side and connected by a belt. A primary clutch device is disposed between the third transmission wheel and the fourth transmission wheel, and is used to cut off the power transmission between the first transmission shaft and the second transmission shaft; A third drive shaft is arranged parallel to the second drive shaft. A sixth drive wheel is provided at one end of the third drive shaft. The sixth drive wheel is arranged on the same side as the fifth drive wheel and is connected by a belt. A seventh drive wheel is provided at the other end of the third drive shaft. The cutting table drive shaft is arranged parallel to the front side of the third transmission shaft. An eighth transmission wheel is provided at one end of the cutting table drive shaft. The eighth transmission wheel is arranged on the same side as the seventh transmission wheel and is connected by a belt. A two-stage clutch device is disposed between the seventh transmission wheel and the eighth transmission wheel. The two-stage clutch device is used to control the power input of the cutting table. A header reversing device is located at the other end of the header drive shaft; when the header is blocked, the secondary clutch disconnects from the engine power connection, and the header reversing device drives the header to reverse.

2. The harvester transmission system as described in claim 1, characterized in that, The cutting table reversing device includes a reversing drive and a reversing gear set. The reversing drive is located on the rear side of the cutting table. The reversing gear set includes a first gear sleeved on the drive shaft of the cutting table and a second gear that is connected to the reversing drive. The second gear meshes with the first gear, and the reversing drive drives the second gear to rotate.

3. A harvester transmission system as described in claim 2, characterized in that, The reversing drive includes a reversing drive shaft and a shift fork mechanism. The second gear is loosely fitted on the reversing drive shaft. The reversing drive shaft also includes a first sliding gear, a second sliding gear, and a third sliding gear sequentially fitted on the reversing drive shaft. The third sliding gear is fitted on a rotating shaft sleeve, and the second gear is fitted on a rotating bearing. The second sliding gear is connected to the shift fork mechanism through a splined sleeve.

4. A harvester transmission system as described in claim 3, characterized in that, The cutting table reversing device further includes a third gear and a first reversing output shaft. The first reversing output shaft is arranged parallel to the reversing transmission shaft. The third gear is sleeved on the first reversing output shaft and meshes with the second gear.

5. A harvester transmission system as described in claim 4, characterized in that, A one-way bearing is provided on the other side of the first reverse output shaft relative to the third gear, and the one-way bearing is connected to the cutter drive.

6. A harvester transmission system as described in claim 5, characterized in that, The main clutch includes a main clutch cylinder and a main clutch tensioning device. The first-stage clutch device includes a first clutch cylinder and a first tensioning device. The second-stage clutch device includes a second clutch cylinder and a second tensioning device. The oil supply circuit of the first clutch cylinder is longer than that of the main clutch cylinder. The second clutch cylinder and the first clutch cylinder are supplied with oil by different oil pumps.

7. A harvester transmission system as described in claim 6, characterized in that, The cutting table reversing device includes a fixed shaft horizontally arranged above the reversing transmission shaft, with both ends of the fixed shaft fixed to the side plate, and one end of the shift fork mechanism sleeved on the fixed shaft.

8. A harvester transmission system as described in claim 7, characterized in that, The cutting table drive shaft includes a gear drive output shaft and a cutting table drive input shaft. The gear drive output shaft and the cutting table drive input shaft are connected by a universal joint, and the gear drive output shaft passes through the side plate.

9. A harvester transmission system as described in claim 8, characterized in that, The reverse drive is located on one side of the reverse transmission shaft. The reverse drive is a reverse motor or a reverse motor. The reverse motor and the reverse motor are electrically connected to the harvester control system.

10. A harvester transmission system as described in claim 1, characterized in that, It also includes a secondary shredding device, which includes a fourth drive shaft disposed between the second drive shaft and the third drive shaft. A shredding drive gear is disposed on one side of the fourth drive shaft, and the shredding drive gear is connected to the fourth drive shaft by a belt.

11. A harvester, characterized in that, Includes the harvester transmission system as described in any one of claims 1-10.

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