Harvester transmission system and harvester

Abstract

The invention 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 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 invention 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. Take 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 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 fuel supply, thereby increasing the engine power and realizing the harvester attachment. However, in this process, when the engine speed suddenly increases from the idle state, the engine is prone to impact, which in turn affects the service life of the engine and the transmission belt. Summary of the invention

[0003] The object of the present invention is to provide a harvester transmission system and a harvester, so as to solve the problems of difficulty in mounting or engine stalling caused by excessive load of the harvester during mounting of the harvester.

[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 comprises 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 through 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 belt realizes power connection between the first transmission wheel and the second transmission wheel, and the power of the engine is transmitted to the first drive shaft; the second clutch device lags behind the first clutch device to tension the second transmission belt, and transmits the power driven by the first drive shaft to the next level.

[0005] The dual-clutch drive system with the first clutch device and the second clutch device is set up to complete the startup operation of each execution system by driving the harvester transmission system in stages. The first clutch device is connected first to start the execution system of the harvester; the second clutch device is connected to the second transmission belt after the first clutch device is connected to the transmission, and then the remaining execution systems of the harvester are driven, avoiding the engine from stalling due to excessive load in the process of providing driving power to the whole machine.

[0006] Furthermore, the harvester transmission system includes a peeling machine drive system, a field return machine drive system, a chopping drive system, a treadmill pump drive system, and a harvesting table drive system which are transmission-connected to the first drive shaft.

[0007] Furthermore, a first belt support plate is arranged at the bottom of the first transmission belt, and the first belt support plate is arranged between the first transmission wheel and the second transmission wheel for supporting the first transmission belt; a second belt support plate is arranged at the bottom of the second transmission belt, and the second belt support plate is arranged between the third transmission wheel and the fourth transmission wheel for supporting the second 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 a throwing fan shaft, driving the throwing fan 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 arranged 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, and the treadmill pump input pulley 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 shredder pulley; the harvester drive system includes a harvester drive shaft, the harvester drive shaft is arranged parallel to the second drive shaft, the second shredder pulley is connected to one end of the harvester drive shaft and rotates synchronously with the harvester drive shaft; a harvester output pulley is arranged at one end of the harvester drive shaft to drive the harvester to operate.

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

[0015] The present invention provides a harvester, comprising any one of the harvester transmission systems described above.

[0016] The harvester with this dual-clutch transmission solves the problem of flameout during the attachment process and can significantly improve the work progress. Due to the dual-clutch device, there is a time difference between the attachment of the first clutch device and the second clutch device, and the start time of each execution system on the harvester is inconsistent. Therefore, there is no need to increase the engine's starting power by increasing the speed, thereby extending the engine's service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below in conjunction with 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 in an embodiment of the present invention Figure 1 .

[0020] Figure 3 A schematic diagram of a harvester transmission system provided in an embodiment of the present invention 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 table; 12-lifter; 13-barker; 14-field returner; 15-chopper; 16-grain silo; 17-throwing barrel; 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 wheel; 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0028] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

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

[0030] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0033] See also Figures 1 to 6As shown, in one embodiment of the present invention, the harvester includes a header 11, a chopper 15, a peeling machine 13, a field return machine 14, an elevator 12, a granary 16, a throwing tube 17 and other structures. The header is used for crop ear picking, and then the chopper is used to harvest the crop straw. The ear is transported to the peeling machine by the elevator, and after being peeled by the peeling machine, it is transported to the granary by the treadmill. According to the different soil environment and terrain of the harvesting area, the field return machine processes the roots of the straw during the harvesting process of the harvester in the central and eastern regions, and because the soil in the northeast region is relatively moist and has more microorganisms, there is no need to use the field return machine during the harvesting process. Since the harvester has a large body and a heavy load, when the harvester drives the header, elevator, chopper, peeling machine and other components, the harvesters on the market have difficulty starting, and the power of the engine 2011 is not enough 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 the engine 2011, that is, to increase the amount of oil supplied to increase the speed of the engine 2011. However, when the engine 2011 is switched from the idle stage, the impact on the engine 2011 increases, which affects the service life of the engine 2011. In order to achieve stable operation of each execution system of the engine 2011 when the engine 2011 is idle, in this embodiment, the harvester is provided with a dual clutch device, and the stable start and operation of each execution mechanism is achieved through the connection time difference between the clutch devices, thereby increasing the use stability of the harvester, extending the service life of the engine 2011, and improving the harvesting efficiency.

[0034] In a specific embodiment, see Figure 2 , Figure 3The harvester transmission system includes an engine 2011, on which a first transmission wheel 2012 for outputting the power of the engine 2011 is provided. In the width direction of the harvester, a first driving shaft 2021 is provided. 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 power of the engine 2011. 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, and the first tensioning wheel 2034 is fixed on a harvesting frame (not shown in the figure). A first bracket 2035 is provided at the lower end of the first tensioning wheel 2034, and 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, so that the first transmission belt 2023 is tightened or loosened. 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 driving shaft 2021, a third rotating wheel is provided, and the third transmission wheel 2024 rotates integrally with the first driving 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 wheel 2044 connected to the second transmission belt 2026. A second bracket 2045 supporting the second transmission belt 2026 is arranged at the lower end of the second tensioning wheel 2044. 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 wheel 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.In the process of power output of the engine 2011, the first clutch device 2030 is tensioned first, the first transmission belt 2023 is compressed to connect the first transmission wheel 2012 with the second transmission wheel 2022, and the power of the engine 2011 is transmitted to the first drive shaft 2021. At this time, since the second clutch device 2040 does not compress the second transmission belt 2026, the third transmission wheel 2024 is in an idling state on the first drive shaft 2021, and the harvester execution system with power input is stably started by relying on the first transmission wheel 2012 and the first drive shaft 2021. The second clutch device 2040 lags behind the first clutch device 2030 in tensioning the second transmission belt 2026. When the second clutch device 2040 is connected, the second transmission belt 2026 is tensioned, and the transmission power of the first drive shaft 2021 is output to the next level of the harvester execution system.

[0035] See also Figure 4 , Figure 5 , Figure 6The first clutch device 2030 includes a first oil cylinder 2031, and the first oil cylinder 2031 drives the first tensioning wheel 2034 to press the first transmission belt 2023. The first clutch device 2030 includes a first tensioning bracket 2033, and the first tensioning bracket 2033 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 wheel 2034. The first oil cylinder 2031 drives the first tensioning bracket 2033 to move by telescoping, and the second connecting rod 2033b controls the connection between the first tensioning wheel 2034 and the first transmission belt 2023, and controls the tension of the first transmission belt 2023. The second clutch device 2040 includes a second oil cylinder 2041. Similarly, the second clutch device 2040 includes a second tensioning bracket 2043. The second oil cylinder 2041 is extended and retracted to drive the second tensioning bracket 2043 and the adjustment of the second tensioning wheel 2044, thereby controlling the second transmission belt 2026 to connect the third transmission wheel 2024 and the fourth transmission wheel 2025, so as to achieve the purpose of controlling the on-off of power transmission. The first oil cylinder 2031 and the second oil cylinder 2041 are connected to the oil tank of the harvester. The oil range of the first oil cylinder 2031 from the oil tank is shorter than the oil range of the second oil cylinder 2041 from the oil tank. Therefore, the action time of the second oil cylinder 2041 lags behind the action time of the first oil cylinder 2031. During the operation of the harvester, the harvester operation switch is started, the first clutch device 2030 and the second clutch device 2040 are respectively tensioned on the first transmission belt 2023 and the second transmission belt 2026. During the startup phase of the engine 2011, the first transmission wheel 2012 is in an idling state, and thus power transmission cannot be achieved. When the first oil cylinder 2031 is filled with oil, the first transmission belt 2023 is tensioned, and the first transmission wheel 2012 transmits power to the second transmission wheel 2022 through the first transmission belt 2023, thereby achieving the rotation of the first drive shaft 2021. At this time, the third transmission wheel 2024 is in an idling state. At this time, the harvester execution system located from the first transmission wheel 2012 to the first drive shaft 2021 is started and works stably. During this process, the output power of the engine 2011 is greater than the sum of the starting powers of the execution systems on this transmission path, so the engine 2011 can 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 been stably started and started working. At this time, the second oil cylinder 2041 drives the second tensioning bracket 2043 to adjust the second tensioning wheel 2044, and 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 the execution system on this transmission path is driven to work, the output power of the engine 2011 is greater than the starting power. Therefore, each execution system can run stably or start stably, and the harvester operation is stable.

[0036] In the harvester transmission system provided in this embodiment, the first drive shaft 2021 provides driving power to the peeling machine drive system 210, the field return machine drive system 220, the chopping drive system 230, the treadmill pump drive system 240, and the header drive system 250. The first clutch device 2030 controls the power input of the field return machine drive system 220 and the peeling machine drive system 210, and the second clutch device 2040 controls the power input of the chopping drive system 230, the treadmill pump drive system 240, and the header drive system 250. By setting the first clutch device 2030 and the second clutch device 2040, the normal startup of each drive system is achieved, and the reliability of the harvester operation is improved.

[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 drive systems can be achieved, the engine 2011 can be prevented from stalling during startup, and stable power output of the harvester's drive systems can be maintained. The stability of the harvesting operation of the harvester is improved, thereby increasing the harvesting efficiency.

[0038] In order to increase the service life of the first transmission belt 2023 and the second transmission belt 2026 on the harvester, a first belt support plate 2032 and a second belt support plate 2042 are provided to protect the first transmission belt 2023 and the second transmission belt 2026. The first belt support plate 2032 is provided between the first transmission wheel 2012 and the second transmission wheel 2022, and is provided below the first transmission belt 2023 to support the first transmission belt 2023. The first belt support plate 2032 is connected to the frame of the harvester, and the first transmission belt 2023 is stuck in the first belt support plate 2032 and rotates in the first belt support plate 2032 following the first transmission wheel 2012 and the second transmission wheel 2022. Similarly, the second belt support plate 2042 is provided between the third transmission wheel 2024 and the fourth transmission wheel 2025, and is provided below the second transmission belt 2026 to support and protect the second transmission belt 2026.

[0039] In this embodiment, see Figure 2 , Figure 3, a second drive shaft 2027 parallel to the first drive shaft 2021 is also provided, one end of the second drive shaft 2027 is connected to the fourth transmission wheel 2025, and rotates together with the fourth transmission wheel 2025, so that the power of the engine 2011 continues to be transmitted to the next process. To simplify the setting, the second drive shaft 2027 is the shaft of the jet blower, and the impeller and related structures of the jet blower are arranged on the second drive shaft 2027, so that the jet blower follows the rotation of the second drive shaft 2027 to realize the work, which not only improves the overall system of the transmission structure, but also saves production costs and has higher power transmission efficiency.

[0040] In this embodiment, the harvester transmission system includes a peeling machine drive system 210, and the peeling machine drive system 210 is connected to the first drive shaft 2021. Specifically, the first drive shaft 2021 is provided with a peeling machine drive sprocket 2101, and the peeling machine drive sprocket 2101 rotates synchronously with the first drive shaft 2021. The peeling machine input sprocket 2102 connected to the peeling machine drive sprocket 2101 is connected to the peeling machine, and the peeling machine input sprocket 2102 provides transmission power to the peeling machine to drive the peeling machine to work. The field return machine drive system 220 is arranged on the first drive shaft 2021, and the field return machine drive pulley 2201 that drives the field return machine system to operate is connected to the second transmission wheel 2022. The field return machine drive pulley 2201 is arranged on the outer side of the second drive pulley and rotates integrally with the first drive shaft 2021. The field return machine driving pulley 2201 is connected to the field return machine input pulley 2202, the field return machine input pulley 2202 is connected to the field return machine driving pulley 2201 through the field return machine transmission belt, and 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 usually do not need to use the field return machine operation. 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 to operate.

[0041] Furthermore, the harvester transmission 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 pulley, and 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 pulley to drive the first chopping unit 231 to work; the second chopping unit 232 includes a second chopping pulley 2321, which is connected to the fifth transmission pulley 2028 to drive the second chopping unit 232 to work. The second chopping unit 232 is connected to a primary chopper, which is provided at the rear side of the harvester's header and is used to chop straw horizontally; the first chopping unit 231 is connected to a secondary chopper, which is used to chop straw longitudinally. The second clutch device 2040 is controlled to be engaged to achieve power input to the shredding drive system 230 .

[0042] In this embodiment, the harvester transmission system includes a treadmill pump drive system 240. The treadmill is used to transport the picked ears to the harvester granary. The treadmill pump drive system 240 includes a treadmill pump input pulley 2401. The treadmill pump input pulley 2401 is connected to the fifth transmission pulley 2028, thereby realizing the treadmill pump power input, driving the treadmill pump to operate, and driving the treadmill hydraulic system to operate. The fifth transmission pulley 2028 is connected to one side of the second drive shaft 2027, and the inner side of the fifth transmission pulley 2028 is connected to the second chopping unit 232. The fifth transmission 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 pick the ears. In the header drive system 250, the header drive system 250 is connected to the second shredding pulley 2321. Specifically, the header drive system 250 includes a header drive shaft 2501, which is arranged in parallel with the first drive shaft 2021 and the second drive shaft 2027. The second shredding pulley 2321 is arranged at one end of the header drive shaft 2501. The header drive shaft 2501 rotates integrally with the second shredding 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, 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, and 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, i.e., the first clutch device 2030 disposed between the first transmission wheel 2012 and the second transmission wheel 2022 and the second clutch device 2040 disposed 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 driving 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 is turned off when the harvester is idle during the operation of the harvester, and at the same time, stabilize the output of the engine 211 power, avoid the influence of the change of the motor power on the life of the engine 211, and improve the service life of the engine 211. It is obvious 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 attached claims and their equivalent technical solutions.

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 is arranged along the width direction of the harvester; A second transmission wheel, wherein the second transmission wheel is disposed at one end of the first drive shaft, and the first transmission wheel and the second transmission wheel are connected via 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 is arranged at the other end of the first driving shaft and rotates synchronously with the first driving shaft; a fourth transmission wheel, the fourth transmission wheel being 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 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, so as to transmit 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 peeling machine drive system, a field return machine drive system, a chopping drive system, a treadmill pump drive system, and a harvesting table drive system which are transmission-connected to the first drive shaft.

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

4. A harvester transmission system as claimed in 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 shaft of the ejection fan, driving the ejection fan to rotate.

5. A harvester transmission system as claimed in 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 as claimed in claim 5, characterized in that: The field return machine driving system includes a field return machine driving pulley that rotates synchronously with the first driving shaft, and a field return machine input pulley connected to the field return machine driving pulley; the field return machine driving 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 as claimed in claim 6, characterized in that: The shredding drive system includes a first shredding unit and a second shredding unit; a fifth transmission pulley is arranged on the other side of the second driving 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 as claimed in claim 7, characterized in that: The treadmill pump driving system comprises a treadmill pump input pulley, and the treadmill pump input pulley 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 as claimed in claim 8, characterized in that: The cutter drive system is connected to the second shredder pulley; the cutter drive system includes a cutter drive shaft, the cutter drive shaft is arranged parallel to the second drive shaft, the second shredder pulley is connected to one end of the cutter drive shaft and rotates synchronously with the cutter drive shaft; a cutter output pulley is arranged at one end of the cutter drive shaft to drive the cutter operation.

10. A harvester, characterized in that: It comprises any one of the harvester transmission systems as described in claims 1-10.

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