Harvester transmission system and harvester

Abstract

The utility model provides a harvester transmission system and a harvester. An engine is connected with a first transmission wheel; a second transmission wheel is arranged at one end of the first driving shaft; a first transmission belt is connected with the first transmission wheel and the second transmission wheel; the first clutch device is arranged between the first transmission wheel and the second transmission wheel and used for controlling the engine to drive the first driving shaft to rotate. The third transmission wheel is arranged at the other end of the first driving shaft, the second transmission belt is connected with the third transmission wheel and the fourth transmission wheel, and the second clutch device is arranged between the third transmission wheel and the fourth transmission wheel; the first clutch device is tensioned preferentially, the first transmission wheel and the second transmission wheel are connected through the first transmission belt, and power of the engine is transmitted to the first driving shaft; and the second clutch device is lagged behind the first clutch device to tension the second transmission belt, and the power transmitted by the first driving shaft is transmitted to the next stage. By arranging the double-clutch device, flameout in the idle starting process of the harvester can be effectively avoided, and then the service life of an engine is prolonged.

Description

Technical Field

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

[0002] During the harvesting operation, agricultural machinery on the market needs to provide driving force to each operating module synchronously. Taking a corn harvester as an example, during the operation, the harvester engine needs to synchronously drive the harvester's walking system, harvester header system and various execution function modules to start. Therefore, the engine load is relatively large, and during the harvester attachment process, it is easy to cause the engine to stall. In order to solve the technical problem of engine startup and stalling during the attachment process, the existing technical means is to increase the engine speed by increasing the oil supply, thereby increasing the engine power and realizing the harvester attachment. However, in this process, when the engine speed suddenly increases from idling state, the engine is prone to impact, thereby affecting the service life of the engine and the transmission belt. Utility Model Content

[0003] The utility model aims to provide a harvester transmission system and a harvester, so as to solve the problems of difficulty in coupling or engine stalling caused by excessive load on the harvester during coupling.

[0004] According to one aspect of the present invention, a harvester transmission system is provided, comprising an engine, a first drive shaft, a second transmission wheel, a first clutch device, a third transmission wheel, a fourth transmission wheel and a second clutch device; the engine includes a first transmission wheel; the first drive shaft is arranged along the width direction of the harvester; a second transmission wheel is arranged at one end of the first drive shaft, and the first transmission wheel and the second transmission wheel are connected by a first transmission belt; the first clutch device is arranged between the first transmission wheel and the second transmission wheel to cut off the power transmission between the engine and the first drive shaft; the third transmission wheel is arranged at the other end of the first drive shaft and rotates synchronously with the first drive shaft; the fourth transmission wheel is connected to the third transmission wheel by a second transmission belt; the second clutch device is arranged between the third transmission wheel and the fourth transmission wheel to cut off the power transmission between the first drive shaft and the fourth transmission wheel; the first clutch device is tensioned first, the first transmission belt connects the first transmission wheel and the second transmission wheel to realize power connection, and the power of the engine is transmitted to the first drive shaft; the second clutch device tensions the second transmission belt after the first clutch device, and transmits the power driven by the first drive shaft to the next stage.

[0005] The dual-clutch drive system, equipped with a first clutch and a second clutch, activates the harvester's drive system in stages to complete the startup of each execution system. The first clutch is engaged first, starting some of the harvester's execution systems. After the first clutch is engaged, the second clutch connects to the second drive belt, which then drives the remaining harvester execution systems. This prevents the engine from stalling due to excessive load while providing drive power to the entire machine.

[0006] Furthermore, the harvester transmission system includes a peeler drive system, a field returner drive system, a chopping drive system, a treadmill pump drive system, and a harvester drive system, which are connected to the first drive shaft.

[0007] Furthermore, a first belt support plate is provided at the bottom of the first transmission belt, and the first belt support plate is provided between the first transmission wheel and the second transmission wheel for supporting the first transmission belt; a second belt support plate is provided at the bottom of the second transmission belt, and the second belt support plate is provided between the third transmission wheel and the fourth transmission wheel for supporting the second transmission belt.

[0008] Furthermore, the fourth transmission wheel is connected to the second drive shaft, and the second drive shaft rotates synchronously with the fourth transmission wheel; the second drive shaft is the throwing blower shaft, driving the throwing blower to rotate.

[0009] Furthermore, the peeling machine drive system includes a peeling machine drive sprocket arranged on the first drive shaft and a peeling machine input sprocket connected to the peeling machine drive sprocket for transmitting power; the peeling machine drive system is connected to the first drive shaft, and the peeling machine input sprocket is used to drive the peeling machine to operate.

[0010] Furthermore, the field return machine drive system includes a field return machine drive pulley that rotates synchronously with the first drive shaft, and a field return machine input pulley connected to the field return machine drive pulley; the field return machine drive wheel is arranged on the outside of the second transmission wheel; the field return machine input pulley drives the field return machine gearbox to drive the field return machine to operate.

[0011] Furthermore, the shredding drive system includes a first shredding unit and a second shredding unit; a fifth transmission pulley is provided on the other side of the second drive shaft; the first shredding unit includes a first shredding pulley, which is connected to the fourth transmission pulley to drive the first shredding unit to operate; the second shredding unit includes a second shredding pulley, which is connected to the fifth transmission pulley to drive the second shredding unit to operate.

[0012] Furthermore, the treadmill pump driving system includes a treadmill pump input pulley, which is connected to the fifth transmission pulley to drive the treadmill pump to operate and drive the treadmill hydraulic system to operate.

[0013] Furthermore, the harvester drive system is connected to the second shredding pulley; the harvester drive system includes a harvester drive shaft, the harvester drive shaft is arranged parallel to the second drive shaft, the second shredding pulley is connected to one end of the harvester drive shaft and rotates synchronously with the harvester drive shaft; a harvester output pulley is provided at one end of the harvester drive shaft to drive the harvester operation.

[0014] By setting up a dual clutch device in the harvester's transmission system, the harvester's various execution systems can be driven stably to achieve efficient harvesting.

[0015] The utility model provides a harvester, comprising any one of the above-mentioned harvester transmission systems.

[0016] Harvesters using this dual-clutch transmission eliminate the problem of stalling during the harvester's coupling process, significantly improving work progress. Because the dual-clutch system eliminates the coupling time difference between the first and second clutches, the startup times of the harvester's various actuator systems are inconsistent. This eliminates the need to increase engine speed to boost starting power, thereby extending engine life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 A schematic diagram of a harvester provided in accordance with an embodiment of the present invention.

[0019] Figure 2 A schematic diagram of a harvester transmission system provided by the embodiment of the utility model Figure 1 .

[0020] Figure 3 A schematic diagram of a harvester transmission system provided by the embodiment of the utility model Figure 2 .

[0021] Figure 4 for Figure 2 Enlarged view of part A in the middle.

[0022] Figure 5 for Figure 2 Enlarged view of part B in the middle.

[0023] Figure 6 for Figure 3 Enlarged view of part C in the middle.

[0024] Description of Figure Numbers:

[0025] 100-harvester; 11-cutting platform; 12-lifter; 13-barker; 14-field returner; 15-chopper; 16-grain silo; 17-throwing drum; 18-frame;

[0026] 200-harvester transmission system; 2011-engine, 2012-first transmission wheel; 2021-first drive shaft; 2022-second transmission wheel, 2023-first transmission belt; 2024-third transmission wheel; 2025-fourth transmission wheel; 2026-second transmission belt; 2027-second drive shaft; 2028-fifth transmission pulley; 2030-first clutch device; 2031-first oil cylinder; 2032-first belt support plate; 2033-first tensioning bracket; 2033a-first connecting rod; 2033b-second connecting rod; 2034-first tensioning wheel; 2035-first bracket; 2040-second clutch device; 2041-second oil cylinder; 2042-second support plate Belt plate; 2043-second tensioning bracket; 2044-second tensioning pulley; 2045-second bracket; 210-peeler drive system; 2101-peeler drive sprocket; 2102-peeler input sprocket; 220-returner drive system; 2201-returner drive pulley; 2202-returner input pulley; 2203-returner gearbox; 230-shredder drive system; 231-first shredder unit; 2311-first shredder pulley; 232-second shredder unit; 2321-second shredder pulley; 240-treadmill pump drive system; 2401-treadmill pump input pulley; 250-cutting table drive system; 2501-cutting table drive shaft; 2502-cutting table output pulley. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0029] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0030] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0031] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0033] See also Figures 1 to 6As shown, in one embodiment provided by the present invention, a harvester includes a header 11, a chopper 15, a peeler 13, a field returner 14, an elevator 12, a granary 16, a throwing cylinder 17, and other structures. The header is used to pick the crop ears, and then the harvested crop straw is chopped by the chopper. The ears are transported to the peeler by the elevator, and after being peeled by the peeler, they are transported to the granary by the treadmill. Due to the different soil environments and topography of the harvesting areas, the field returner treats the roots of the straw during the harvesting process in the central and eastern regions. However, since the soil in the northeastern region is relatively moist and has more microorganisms, there is no need to use the field returner during the harvesting process. Due to the large body and heavy load of the harvester, when the harvester drives the header, elevator, chopper, peeler and other components, the harvesters on the market have difficulty starting. The power of the engine 2011 is insufficient to support the normal operation of the harvester body and various execution systems, and it is easy to stall. A common method is to increase the speed of engine 2011, that is, by increasing the amount of fuel supplied, to achieve an increase in the speed of engine 2011. However, when engine 2011 switches from the idle phase, the impact on engine 2011 increases, which can affect the service life of engine 2011. To ensure stable operation of each actuator system when engine 2011 is idle, the harvester in this embodiment is equipped with a dual clutch device. By utilizing the time difference between the clutch devices, stable startup and operation of each actuator is achieved, thereby increasing the operational stability of the harvester, extending the service life of engine 2011, and improving harvesting efficiency.

[0034] In a specific embodiment, see Figure 2 、 Figure 3The harvester transmission system includes an engine 2011, and the engine 2011 is provided with a first transmission wheel 2012 for outputting the power of the engine 2011. A first driving shaft 2021 is provided in the width direction of the harvester. A second transmission wheel 2022 is provided at one end of the first driving shaft 2021 close to the first transmission wheel 2012. The first transmission wheel 2012 and the second transmission wheel 2022 are connected by a first transmission belt 2023. When the first transmission wheel 2012 of the engine 2011 rotates, the second transmission wheel 2022 is driven to rotate. The second transmission wheel 2022 rotates integrally with the first driving shaft 2021. Therefore, during the rotation of the first transmission wheel 2012, the first driving shaft 2021 also rotates synchronously to realize the output of the engine 2011 power. The first clutch device 2030 is arranged between the first transmission wheel 2012 and the second transmission wheel 2022 and is fixed on the frame of the harvester. The first clutch device 2030 is connected to the first transmission belt 2023, is arranged above the first transmission belt 2023 and is connected to the first transmission belt 2023, and is used to cut off the transmission power between the engine 2011 and the first drive shaft 2021. Specifically, the first clutch device 2030 is provided with a first tensioning wheel 2034 connected to the first transmission belt 2023. The first tensioning wheel 2034 is fixed on the harvesting frame (not shown in the figure). The lower end of the first tensioning wheel 2034 is provided with a first bracket 2035. The first bracket 2035 is used to support the first transmission belt 2023. The first transmission belt 2023 passes through the first bracket 2035, and the first tensioning wheel 2034 is adjusted to tighten or loosen the first transmission belt 2023. When the first transmission belt 2023 is tightened, the first transmission wheel 2012 and the second transmission wheel 2022 realize power transmission, and then the power of the engine 2011 is transmitted to the first drive shaft 2021. At the other end of the first drive shaft 2021, a third rotating wheel is provided, and the third transmission wheel 2024 rotates integrally with the first drive shaft 2021; the fourth transmission wheel 2025 and the third transmission wheel 2024 are arranged on the same side, and the third transmission wheel 2024 and the fourth transmission wheel 2025 are connected by a second transmission belt 2026. Similarly, a second clutch device 2040 is arranged between the third transmission wheel 2024 and the fourth transmission wheel 2025. The second clutch device 2040 is arranged above the second transmission belt 2026, and the second clutch device 2040 is provided with a second tensioning pulley 2044 connected to the second transmission belt 2026. The lower end of the second tensioning pulley 2044 is provided with a second bracket 2045 supporting the second transmission belt 2026. The second bracket 2045 is used to support the second transmission belt 2026, wherein the second transmission belt 2026 also passes through the second bracket 2045. When the second tensioning pulley 2044 is adjusted, the second transmission belt 2026 is tightened or loosened, thereby realizing power transmission between the third transmission wheel 2024 and the fourth transmission wheel 2025.During the power output process of the engine 2011, the first clutch 2030 is first tensioned, and the first transmission belt 2023 is compressed, connecting the first transmission wheel 2012 with the second transmission wheel 2022. The power of the engine 2011 is transmitted to the first drive shaft 2021. At this time, because the second clutch 2040 does not compress the second transmission belt 2026, the third transmission wheel 2024 is in an idle state on the first drive shaft 2021, and the harvester execution system, which relies on the first transmission wheel 2012 and the first drive shaft 2021, is stably started. The second clutch 2040 tensions the second transmission belt 2026 later than the first clutch 2030. When the second clutch 2040 is engaged, the second transmission belt 2026 is tightened, and the transmission power of the first drive shaft 2021 is output to the next-level harvester execution system.

[0035] See also Figure 4 、 Figure 5 、 Figure 6The first clutch device 2030 includes a first oil cylinder 2031, which drives the first tensioning pulley 2034 to compress the first transmission belt 2023. The first clutch device 2030 includes a first tensioning bracket 2033, which includes a first connecting rod 2033a and a second connecting rod 2033b. One end of the first connecting rod 2033a is connected to one end of the second connecting rod 2033b, and the connection is connected to the engine 2011. The other end of the first connecting rod 2033a is connected to the first oil cylinder 2031, and the other end of the second connecting rod 2033b is connected to the first tensioning pulley 2034. The first oil cylinder 2031 drives the first tensioning bracket 2033 to move by extending and retracting. The second connecting rod 2033b controls the connection between the first tensioning pulley 2034 and the first transmission belt 2023, thereby controlling the tension of the first transmission belt 2023. The second clutch device 2040 includes a second cylinder 2041 and a second tensioning bracket 2043. The second cylinder 2041 extends and retracts, driving the second tensioning bracket 2043 and adjusting the second tensioning pulley 2044. This in turn controls the second transmission belt 2026, connecting the third transmission pulley 2024 and the fourth transmission pulley 2025, thereby controlling the on / off power transmission. The first and second cylinders 2031 and 2041 are connected to the harvester's fuel tank. The oil range from the first cylinder 2031 to the fuel tank is shorter than the oil range from the second cylinder 2041 to the tank, resulting in a lag in the actuation time of the second cylinder 2041 relative to the first cylinder 2031. During harvester operation, the harvester operation switch is activated, and the first and second clutches 2030 and 2040 respectively tighten the first and second transmission belts 2023 and 2026. During the startup phase of the engine 2011, the first transmission wheel 2012 is in an idling state, preventing power transmission. When oil is introduced into the first oil cylinder 2031, the first transmission belt 2023 is tightened, and the first transmission wheel 2012 transmits power to the second transmission wheel 2022 via the first transmission belt 2023, thereby rotating the first drive shaft 2021. At this point, the third transmission wheel 2024 is in an idling state, and the harvester execution system located between the first transmission wheel 2012 and the first drive shaft 2021 is activated and operates stably. During this process, the output power of the engine 2011 is greater than the sum of the starting powers of the execution systems along this transmission path, enabling the engine 2011 to operate stably.When the second oil cylinder 2041 is filled with oil, the harvester execution system located on the first transmission wheel 2012 to the first drive shaft 2021 has started stably and started working. At this time, the second oil cylinder 2041 drives the second tensioning bracket 2043 to adjust the second tensioning wheel 2044, the second transmission belt 2026 is tensioned, the power of the engine 2011 continues to be transmitted, and the third pulley drives the fourth pulley to rotate. When driving the execution system on this transmission path to work, the output power of the engine 2011 is greater than the starting power. Therefore, each execution system can operate stably or start stably, and the harvester operation is stable.

[0036] In the harvester drive system provided in this embodiment, driving power is provided by a first drive shaft 2021 to the debarker drive system 210, the field returner drive system 220, the chopping drive system 230, the treadmill pump drive system 240, and the header drive system 250. A first clutch device 2030 controls the power input to the field returner drive system 220 and the debarker drive system 210, while a second clutch device 2040 controls the power input to the chopping drive system 230, the treadmill pump drive system 240, and the header drive system 250. The provision of the first clutch device 2030 and the second clutch device 2040 ensures the normal startup of each drive system, improving the reliability of harvester operation.

[0037] By setting up a dual-clutch harvester transmission system with a first clutch device 2030 and a second clutch device 2040, stable connection of the harvester's various drive systems can be achieved, the engine 2011 can be prevented from stalling during startup, and stable power output of the harvester's various drive systems can be maintained. The stability of the harvester's harvesting operation is improved, thereby increasing harvesting efficiency.

[0038] To extend the service life of the first and second transmission belts 2023 and 2026 on the harvester, a first support plate 2032 and a second support plate 2042 are provided to protect the first and second transmission belts 2023 and 2026. The first support plate 2032 is disposed between the first and second transmission wheels 2012 and 2022, below the first transmission belt 2023, to support the first transmission belt 2023. The first support plate 2032 is connected to the frame of the harvester. The first transmission belt 2023 is clamped within the first support plate 2032 and rotates within the first support plate 2032 along with the first and second transmission wheels 2012 and 2022. Similarly, the second support plate 2042 is disposed between the third and fourth transmission wheels 2024 and 2025, below the second transmission belt 2026, to support and protect the second transmission belt 2026.

[0039] In this embodiment, see Figure 2 、 Figure 3A second drive shaft 2027 is also provided, parallel to the first drive shaft 2021. One end of the second drive shaft 2027 is connected to the fourth transmission wheel 2025, rotating integrally with the fourth transmission wheel 2025, thereby transmitting power from the engine 2011 to the next process. To simplify the configuration, the second drive shaft 2027 serves as the shaft for the ejection blower. The impeller and related structures of the ejection blower are mounted on the second drive shaft 2027. Thus, the ejection blower rotates with the second drive shaft 2027 to operate. This not only improves the overall systemicity of the transmission structure, but also saves production costs and achieves higher power transmission efficiency.

[0040] In this embodiment, the harvester drive system includes a debarker drive system 210, which is connected to a first drive shaft 2021. Specifically, a debarker drive sprocket 2101 is mounted on the first drive shaft 2021 and rotates synchronously with the first drive shaft 2021. A debarker input sprocket 2102, connected to the debarker drive sprocket 2101, is connected to the debarker, providing power to the debarker to drive the debarker. A field returner drive system 220 is mounted on the first drive shaft 2021. A field returner drive pulley 2201, which drives the field returner system, is connected to a second transmission pulley 2022. The field returner drive pulley 2201 is located outside the second drive pulley and rotates integrally with the first drive shaft 2021. The field return machine drive pulley 2201 is connected to the field return machine input pulley 2202, and the field return machine input pulley 2202 is connected to the field return machine drive pulley 2201 via the field return machine transmission belt. The field return machine input pulley 2202 is connected to the field return machine reversing gearbox to drive the field return machine connected to the field return machine reversing gearbox to operate. Optionally, due to different harvesting areas and harvesting requirements, some areas generally do not require the use of field return machine operations. Therefore, in a specific embodiment, the field return machine drive system 220 can also be provided with a field return machine clutch to control the field return machine drive system 220 to drive the field return machine operation.

[0041] Furthermore, the harvester drive system also includes a chopping drive system 230, which includes a first chopping unit 231 and a second chopping unit 232. The first chopping unit 231 is connected to the fourth transmission wheel. A fifth transmission pulley 2028 is provided on the other side of the second drive shaft 2027, and the second chopping unit 232 is connected to the fifth transmission pulley 2028. The first chopping unit 231 includes a first chopping pulley 2311, which is connected to the fourth transmission wheel and drives the first chopping unit 231. The second chopping unit 232 includes a second chopping pulley 2321, which is connected to the fifth transmission pulley 2028 and drives the second chopping unit 232. The second chopping unit 232 is connected to a primary chopper, which is located at the rear of the harvester's header and is used for horizontal chopping of straw. The first chopping unit 231 is connected to a secondary chopper, which is used for vertical chopping of straw. The second clutch device 2040 is controlled to be engaged to realize the power input of the chopping drive system 230 .

[0042] In this embodiment, the harvester's drive system includes a treadmill pump drive system 240. The treadmill is used to transport the harvested fruit ears to the harvester's grain bin. The treadmill pump drive system 240 includes a treadmill pump input pulley 2401, which is connected to a fifth drive pulley 2028. This input power is then fed to the treadmill pump, driving the treadmill pump and the treadmill's hydraulic system. The fifth drive pulley 2028 is connected to one side of the second drive shaft 2027. The inner side of the fifth drive pulley 2028 is connected to the second chopping unit 232. The fifth drive pulley 2028 is a double-row pulley.

[0043] In this embodiment, the harvester transmission system includes a header drive system 250 to drive the header operation. The header of the harvester is used to separate the grains and remove the ears. In the header drive system 250, the header drive system 250 is connected to the second chopping pulley 2321. Specifically, the header drive system 250 includes a header drive shaft 2501, which is arranged parallel to the first drive shaft 2021 and the second drive shaft 2027. The second chopping pulley 2321 is disposed at one end of the header drive shaft 2501. The header drive shaft 2501 rotates integrally with the second chopping pulley 2321. The other end of the header drive shaft 2501 is provided with a header output pulley 2502 to drive the header operation.

[0044] In this embodiment, the first transmission wheel 2012 set in the engine 2011 outputs power to the second transmission wheel 2022 through the first transmission belt 2023, and the first drive shaft 2021 rotating synchronously with the second transmission wheel 2022 transmits power to the third transmission wheel 2024. The third transmission wheel 2024 transmits power to the fourth transmission wheel 2025 through the second transmission belt 2026. The second drive shaft 2027 rotating integrally with the fourth transmission wheel 2025 transmits the power output of the engine 2011 step by step. The dual clutch device provided in this embodiment, namely the first clutch device 2030 arranged between the first transmission wheel 2012 and the second transmission wheel 2022 and the second clutch device 2040 arranged between the third transmission wheel 2024 and the fourth transmission wheel 2025, controls the idling of the first transmission wheel 2012 and the third transmission wheel 2024 by adjusting the first transmission belt 2023 and the second transmission belt 2026, so as to adjust the idle speed without changing the output power of the engine 2011, thereby realizing the drive of the harvester execution system and achieving the effect of efficient harvesting. In this way, it is possible to avoid the situation that the engine 211 stalls when the harvester is idling during operation, and at the same time, stabilize the output of the engine 211 power, avoid the influence of the change of the engine power on the life of the engine 211, and improve the service life of the engine 211. It will be apparent to those skilled in the art that various modifications and variations can be made to the above 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 covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalents.

Claims

1. A harvester transmission system, characterized in that: include: an engine, the engine comprising a first transmission wheel; a first drive shaft, the first drive shaft being arranged along the width direction of the harvester; a second transmission wheel, wherein the second transmission wheel is provided at one end of the first drive shaft, and the first transmission wheel and the second transmission wheel are connected by a first transmission belt; a first clutch device, the first clutch device being disposed between the first transmission wheel and the second transmission wheel to cut off power transmission between the engine and the first drive shaft; a third transmission wheel, the third transmission wheel being disposed at the other end of the first drive shaft and rotating synchronously with the first drive shaft; a fourth transmission wheel connected to the third transmission wheel via a second transmission belt; a second clutch device, the second clutch device being disposed between the third transmission wheel and the fourth transmission wheel to cut off power transmission between the first drive shaft and the fourth transmission wheel; The first clutch device is preferentially tensioned, the first transmission belt connects the first transmission wheel and the second transmission wheel to achieve power connection, and the power of the engine is transmitted to the first drive shaft; The second clutch device lags behind the first clutch device in tightening the second transmission belt, transmitting the power driven by the first drive shaft to the next stage.

2. A harvester transmission system according to claim 1, characterized in that: The harvester transmission system includes a peeler drive system, a field returner drive system, a chopping drive system, a treadmill pump drive system, and a cutting table drive system that are transmission-connected to the first drive shaft.

3. A harvester transmission system according to claim 2, characterized in that: A first belt support plate is provided at the bottom of the first transmission belt, and the first belt support plate is provided between the first transmission wheel and the second transmission wheel for supporting the first transmission belt; a second belt support plate is provided at the bottom of the second transmission belt, and the second belt support plate is provided between the third transmission wheel and the fourth transmission wheel for supporting the second transmission belt.

4. A harvester transmission system according to claim 3, characterized in that: The fourth transmission wheel is connected to the second drive shaft, and the second drive shaft rotates synchronously with the fourth transmission wheel; the second drive shaft is the throwing blower shaft, driving the throwing blower to rotate.

5. A harvester transmission system according to claim 4, characterized in that: The peeling machine drive system includes a peeling machine drive sprocket arranged on the first drive shaft and a peeling machine input sprocket connected to the peeling machine drive sprocket for transmitting power; the peeling machine drive system is connected to the first drive shaft, and the peeling machine input sprocket is used to drive the peeling machine to operate.

6. A harvester transmission system according to claim 5, characterized in that: The field return machine drive system includes a field return machine drive pulley that rotates synchronously with the first drive shaft, and a field return machine input pulley connected to the field return machine drive pulley; the field return machine drive wheel is arranged on the outside of the second transmission wheel; the field return machine input pulley drives the field return machine gearbox to drive the field return machine to operate.

7. A harvester transmission system according to claim 6, characterized in that: The shredding drive system includes a first shredding unit and a second shredding unit; a fifth transmission pulley is provided on the other side of the second drive shaft; the first shredding unit includes a first shredding pulley, which is connected to the fourth transmission pulley to drive the first shredding unit to operate; the second shredding unit includes a second shredding pulley, which is connected to the fifth transmission pulley to drive the second shredding unit to operate.

8. A harvester transmission system according to claim 7, characterized in that: The treadmill pump driving system includes a treadmill pump input pulley, which is connected to the fifth transmission pulley to drive the treadmill pump to operate and drive the treadmill hydraulic system to operate.

9. A harvester transmission system according to claim 8, characterized in that: The cutter drive system is connected to the second shredding pulley; the cutter drive system includes a cutter drive shaft, the cutter drive shaft is arranged parallel to the second drive shaft, the second shredding pulley is connected to one end of the cutter drive shaft and rotates synchronously with the cutter drive shaft; a cutter output pulley is provided at one end of the cutter drive shaft to drive the cutter operation.

10. A harvester, characterized in that: The invention comprises a harvester transmission system as described in any one of claims 1 to 9.

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