Grain harvester drive system and grain harvester

Abstract

The utility model relates to the technical field of grain harvester, disclose a kind of grain harvester transmission system, comprising: engine;With the intermediate shaft transmission component of engine transmission connection;Including the transition shaft transmission unit of first transition shaft transmission component and second transition shaft transmission component;For respectively with first transition shaft transmission component and header system transmission connection's header transmission unit;And for respectively with second transition shaft transmission component and clean-up collection system transmission connection's clean-up collection transmission unit;Wherein, first transition shaft transmission component includes for with intermediate shaft transmission component transmission connection's transition shaft one transmission wheel one, with the transition shaft one transmission wheel two of header transmission unit transmission connection, with the transition shaft one transmission wheel three of second transition shaft transmission component transmission connection and transition shaft one.By the above technical scheme, the power distribution of equalizing intermediate shaft transmission component on different transmission path can be evenly distributed, and the distribution of transmission power is controlled.

Description

Technical Field

[0001] This utility model relates to the field of grain harvester technology, specifically to a grain harvester transmission system. Based on this, it also relates to a grain harvester. Background Technology

[0002] The transmission system of a grain harvester is mainly used to transmit power to various working devices to complete operations such as harvesting, threshing, and cleaning of grain. Existing grain harvester transmission systems have problems such as uneven power distribution, which leads to unstable operation of the grain harvester. Utility Model Content

[0003] The purpose of this invention is to provide a grain harvester transmission system that achieves a more balanced power transmission across different transmission paths.

[0004] To achieve the above objectives, this utility model provides a grain harvester transmission system, comprising: an engine; an intermediate shaft transmission assembly, the intermediate shaft transmission assembly being drivenly connected to the engine; a transition shaft transmission unit, the transition shaft transmission unit including a first transition shaft transmission assembly and a second transition shaft transmission assembly, the second transition shaft transmission assembly being drivenly connected to the first transition shaft transmission assembly; a header transmission unit, the header transmission unit being drivenly connected to the first transition shaft transmission assembly and the header system respectively; and a cleaning and collection transmission unit, the cleaning and collection transmission unit being drivenly connected to the second transition shaft transmission assembly and the cleaning and collection system respectively; wherein, the first transition shaft transmission assembly includes a first transition shaft transmission wheel for being drivenly connected to the intermediate shaft transmission assembly, a second transition shaft transmission wheel for being drivenly connected to the header transmission unit, a third transition shaft transmission wheel for being drivenly connected to the second transition shaft transmission assembly, and a first transition shaft being drivenly connected between the first transition shaft transmission wheel, the second transition shaft transmission wheel, and the third transition shaft transmission wheel.

[0005] In some embodiments, the cutting table transmission unit includes a bridge transmission assembly and a cutting table transmission assembly driven by the bridge transmission assembly. The bridge transmission assembly includes a bridge input shaft transmission wheel two driven by the transition shaft one transmission wheel two, a bridge input shaft transmission wheel one driven by the cutting table transmission assembly, and a bridge input shaft driven by the bridge input shaft transmission wheel one and the bridge input shaft transmission wheel two.

[0006] In some embodiments, the header drive assembly includes a header intermediate shaft drive wheel one that is driven to drive the bridge input shaft drive wheel one, a header intermediate shaft drive wheel two that is driven to drive the feed auger and reel of the header system, a header intermediate shaft drive wheel three that is driven to drive the cutting equipment of the header system, and a header intermediate shaft that is driven to drive the header intermediate shaft drive wheel one, the header intermediate shaft drive wheel two, and the header intermediate shaft drive wheel three.

[0007] In some embodiments, the second transition shaft assembly includes a second transition shaft drive wheel connected to the third drive wheel of the first transition shaft, a first drive wheel of the second transition shaft connected to the cleaning and collection drive unit, and a second transition shaft connected between the first drive wheel of the second transition shaft and the second drive wheel of the second transition shaft.

[0008] In some embodiments, the cleaning and collection transmission unit includes a grain auger transmission assembly, an impurity auger transmission wheel, and a sieve box transmission assembly that are synchronously connected to the two transmission wheels of the transition shaft. The cleaning and collection transmission unit also includes a fan transmission wheel that is connected to the grain auger transmission assembly.

[0009] In some embodiments, the grain auger drive assembly includes a grain auger drive wheel one driven by the transition shaft two drive wheel one, a grain auger drive wheel two driven by the fan drive wheel, and a grain auger shaft driven between the grain auger drive wheel one and the grain auger drive wheel two; the sieve box drive assembly includes a sieve box reversing wheel driven synchronously by the transition shaft two drive wheel one, the grain auger drive wheel one and the waste auger drive wheel, a sieve box transition wheel driven by the sieve box drive wheel, and a sieve box transition shaft driven between the sieve box reversing wheel and the sieve box transition wheel.

[0010] In some embodiments, the intermediate shaft drive assembly includes an intermediate shaft drive wheel one for drivingly connecting to an engine drive wheel one of the engine, an intermediate shaft drive wheel two for drivingly connecting to a transition shaft drive wheel one, and an intermediate shaft drivingly connecting the intermediate shaft drive wheel one and the intermediate shaft drive wheel two.

[0011] In some embodiments, the grain harvester transmission system further includes roller drive wheels for connection to the intermediate shaft transmission assembly and the roller drive, respectively. The intermediate shaft transmission assembly further includes an intermediate shaft drive wheel three for transmission connection to the roller drive wheel, and the intermediate shaft drive wheel three is transmissionally connected to the intermediate shaft.

[0012] In some embodiments, the grain harvester transmission system further includes a shredder transmission assembly for connection to the intermediate shaft transmission assembly and the shredder transmission wheel, respectively. The shredder transmission assembly includes a shredder transition shaft transmission wheel one that is driven to the intermediate shaft transmission wheel four of the intermediate shaft transmission assembly, a shredder transition shaft transmission wheel two that is driven to the shredder transmission wheel, and a shredder transition shaft that is driven between the shredder transition shaft transmission wheel one and the shredder transition shaft transmission wheel two. The intermediate shaft transmission wheel four is driven to the intermediate shaft.

[0013] In some embodiments, the grain harvester transmission system further includes a grain unloading transmission unit connected to the engine. The grain unloading transmission unit includes a grain unloading intermediate shaft transmission wheel one and a grain unloading intermediate shaft transmission wheel two for transmission connection to the engine transmission wheel two, a grain unloading intermediate shaft, a grain unloading bottom auger transmission wheel, and a grain unloading inclined auger transmission wheel for transmission connection between the grain unloading intermediate shaft transmission wheel one and the grain unloading intermediate shaft transmission wheel two. The grain unloading intermediate shaft transmission wheel two, the grain unloading bottom auger transmission wheel, and the grain unloading inclined auger transmission wheel are synchronously connected.

[0014] In some embodiments, the grain harvester transmission system further includes: a harvesting clutch for controlling the transmission connection between the engine drive wheel one and the intermediate shaft drive wheel one; and / or, a unloading clutch for controlling the transmission connection between the engine drive wheel two and the unloading intermediate shaft drive wheel one.

[0015] In some implementations, the transmission connection is achieved using a belt or chain.

[0016] In some embodiments, the grain harvester transmission system further includes a tensioning pulley disposed on the belt or chain for adjusting the tension of the belt or chain.

[0017] In some embodiments, the grain harvester drive system further includes a limit power control component configured to disconnect the drive connection when the drive power exceeds a predetermined value.

[0018] Based on this, the present invention also provides a grain harvester, including the aforementioned grain harvester transmission system.

[0019] Through the above technical solution, the engine's drive wheel one, intermediate shaft drive assembly, and transition shaft drive unit are sequentially connected, thereby transmitting the engine's power to the transition shaft drive unit. The transition shaft drive unit includes a first transition shaft drive assembly and a second transition shaft drive assembly. The first transition shaft drive assembly's first drive wheel one is connected to the intermediate shaft drive assembly, the second drive wheel one is connected to the cutter head drive unit, and the third drive wheel one is connected to the second transition shaft drive assembly. The second transition shaft drive assembly is connected to the cleaning and collection drive unit. Power is transmitted to the cutter head system and the cleaning and collection system respectively through the transition shaft drive unit. The working power of the cutter head system is basically equivalent to the working power requirement of the cleaning and collection system. Therefore, by splitting the power through the transition shaft drive unit and transmitting it separately to the cutter head system and the cleaning and collection system, the power distribution of the transition shaft drive unit on different transmission paths can be balanced. Furthermore, the cutter head drive unit and the cleaning and collection drive unit each form two independent transmission paths, which is beneficial for controlling the distribution of transmitted power. At the same time, the power requirement on each path is relatively low, which is beneficial for protecting the working devices on the two transmission paths respectively.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of the grain harvester transmission system provided by this utility model; Figure 2 This is a front-view schematic diagram of the transmission system of the grain harvester provided by this utility model.

[0022] Explanation of reference numerals in the attached figures 1-Engine; 1A-Engine drive wheel one; 1B-Engine drive wheel two; 2-Intermediate shaft; 2A-Intermediate shaft drive wheel one; 2B-Intermediate shaft drive wheel two; 2C-Intermediate shaft drive wheel three; 2D-Intermediate shaft drive wheel four; 3-Unloading intermediate shaft; 3A-Unloading intermediate shaft drive wheel one; 3B-Unloading intermediate shaft drive wheel two; 4-Unloading bottom auger drive wheel; 5-Unloading inclined auger drive wheel; 6-Drum drive wheel; 7-Transition shaft one; 7A-Transition shaft one drive wheel one; 7B-Transition shaft one drive wheel two; 7C-Transition shaft one drive wheel three; 8-Bridge input shaft; 8A-Bridge input shaft drive wheel one; 8B-Bridge input shaft drive wheel two; 9-Heading platform intermediate shaft; 9A-Heading platform intermediate shaft drive wheel one; 9B-Heading platform intermediate shaft drive wheel three; 9C - Intermediate shaft drive wheel of header 3; 10 - Feed auger drive wheel; 11 - Cutter drive wheel; 12 - Reel transition wheel 1; 13 - Reel transition wheel 2; 14 - Reel drive wheel; 15 - Fan drive wheel; 16 - Grain auger shaft; 16A - Grain auger drive wheel 1; 16B - Grain auger drive wheel 2; 17 - Screen box transition shaft; 17A - Screen box reversing wheel; 17B - Screen box transition wheel; 18 - Impurity auger drive wheel; 19 - Transition shaft 2; 19A - Transition shaft 2 drive wheel 1; 19B - Transition shaft 2 drive wheel 2; 20 - Screen box drive wheel; 21 - Chopper transition shaft; 21A - Chopper transition shaft drive wheel 1; 21B - Chopper transition shaft drive wheel 2; 22 - Chopper drive wheel. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] In this utility model, unless otherwise stated, the terms "upper," "lower," "left," "right," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, the descriptions using terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In grain harvesters, the transmission system is used to transmit power to various working devices to drive them in harvesting, cleaning, and unloading grain. In existing wheeled grain harvester transmission systems, multiple transmission paths typically exist simultaneously at intermediate transmission nodes. On the one hand, these paths are not independent of each other, making it impossible to effectively limit the power transmitted by a single path, potentially leading to device failure under extreme conditions. On the other hand, the lack of balanced power transmission among these paths causes transmission components such as belts or chains to suffer from reduced reliability due to excessive power load. Furthermore, the splitting of multiple transmission paths at a single intermediate node results in a long drive shaft cantilever, causing power to deviate from the machine's transmission path, increasing the structural strength required for the machine's mounting structure, and negatively impacting the overall machine layout.

[0029] This utility model addresses at least one of the aforementioned technical problems in the prior art by providing a grain harvester transmission system, with reference to... Figure 1 and Figure 2As shown, the grain harvester transmission system provided by this utility model includes: an engine 1, an intermediate shaft transmission assembly, a transition shaft transmission unit, a header transmission unit, and a cleaning and collection transmission unit. The engine 1 serves as the power input source and includes an engine transmission wheel 1A. The transition shaft transmission unit includes a first transition shaft transmission assembly and a second transition shaft transmission assembly that is connected to the first transition shaft transmission assembly. The first transition shaft transmission assembly includes a transition shaft 7, a first transition shaft transmission wheel 7A, a second transition shaft transmission wheel 7B, and a third transition shaft transmission wheel 7C. The first transition shaft transmission wheel 7A, the second transition shaft transmission wheel 7B, and the third transition shaft transmission wheel 7C are connected to the first transition shaft 7. The engine transmission wheel 1A is connected to the intermediate shaft transmission assembly, and the intermediate shaft transmission assembly is connected to the first transition shaft transmission wheel 7A, thereby transmitting power from the engine 1 to the intermediate shaft transmission assembly and then to the first transition shaft 7. The second transition shaft transmission wheel 7B is connected to the header transmission unit, thereby transmitting power to the header transmission unit. The first transmission wheel 7C of the transition shaft is connected to the second transition shaft transmission assembly, which in turn is connected to the cleaning and collection transmission unit, thereby transmitting power to the cleaning and collection transmission unit. The header transmission unit and the cleaning and collection transmission unit are further connected to the header system and the cleaning and collection system, respectively, thus transmitting power to the header system and the cleaning and collection system, respectively.

[0030] In the grain harvester transmission system provided by this utility model, the engine transmission wheel 1A is sequentially connected to the intermediate shaft transmission assembly and the first transition shaft transmission assembly, thereby transmitting the power output from the engine 1 to the first transition shaft transmission assembly. This first transition shaft transmission assembly then forms two transmission paths: one via the transition shaft transmission wheel 7B to the header transmission unit and the other via the transition shaft transmission wheel 7C to the second transition shaft transmission assembly and the cleaning and collection transmission unit and the cleaning and collection system. The header system is used to cut the grain and transport it to subsequent processing equipment. The header system generally includes a feeding auger, a reel, and cutting equipment. The cleaning and collection system is used to separate grains from impurities and generally includes a fan, a sieve box, a grain auger, and an impurity auger. Since the overall power of the header system and the cleaning and collection system is roughly equivalent, forming these two transmission paths achieves power distribution and equalization. The power requirement for each path is low, preventing the transmission components from becoming unreliable due to excessive power load, thus improving the stability of the grain harvester's operation. Moreover, the two transmission paths mentioned above are independent of each other, which is beneficial for controlling the distribution of transmitted power. At the same time, power is transmitted through the intermediate shaft transmission assembly - the first transition shaft transmission assembly - the cutting table transmission unit, eliminating the need for secondary diversion at the lower-level transmission nodes. This helps reduce the number of transmission wheels at the lower-level transmission nodes and shorten the length of the transmission shaft rods, thereby reducing the number of transmission stages, lowering costs, and making the transmission system more closely integrated with the machine body, ensuring stable force distribution, and simplifying the layout.

[0031] In some implementations, see Figure 1 As shown, the cutter head transmission unit includes a bridge transmission assembly and a cutter head transmission assembly that is connected to the bridge transmission assembly. The bridge transmission assembly includes a bridge input shaft 8, a bridge input shaft transmission wheel 8A, and a bridge input shaft transmission wheel 8B. The bridge input shaft transmission wheel 8A and the bridge input shaft transmission wheel 8B are connected to the bridge input shaft 8. The bridge input shaft transmission wheel 8B is connected to the transition shaft transmission wheel 7B to transmit power from the first transition shaft transmission assembly to the bridge. The bridge input shaft transmission wheel 8A is connected to the cutter head transmission assembly to transmit power to the cutter head transmission assembly.

[0032] Furthermore, the header drive assembly includes a header intermediate shaft 9 and three intermediate shaft drive wheels 9A, 9B, and 9C, which are drively connected to the header intermediate shaft 9. The intermediate shaft drive wheel 9A is drively connected to the bridge input shaft drive wheel 8A to transmit power to the header intermediate shaft 9. The intermediate shaft drive wheel 9B is drively connected to the feed auger and reel of the header system to transmit power to them. The intermediate shaft drive wheel 9C is drively connected to the cutting equipment, such as a cutter, to transmit power to it.

[0033] Specifically, see Figure 1 As shown, the second drive wheel 9B of the header intermediate shaft is synchronously connected to the feeding auger drive wheel 10 and the first reel transition wheel 12. The feeding auger drive wheel 10 is connected to the feeding auger. The first reel transition wheel 12 is connected to the reel transition shaft. The second reel transition wheel 13 is connected to the reel transition shaft. The second reel transition wheel 13 is connected to the reel drive wheel 14. The reel drive wheel 14 is connected to the reel. The third drive wheel 9C of the header intermediate shaft is connected to the cutter drive wheel 11. The cutter drive wheel 11 is connected to the cutter. Therefore, power is transmitted to the feeding auger and the reel through the second drive wheel 9B of the header intermediate shaft, and to the cutter through the third drive wheel 9C of the header intermediate shaft.

[0034] In some implementations, such as Figure 1 As shown, the second transition shaft assembly includes a second transition shaft 19, a second transition shaft drive wheel 19A, and a second transition shaft drive wheel 19B. The second transition shaft drive wheel 19A and the second transition shaft drive wheel 19B are drivenly connected to the second transition shaft 19. The second transition shaft drive wheel 19B is drivenly connected to the first transition shaft drive wheel 7C to transmit power to the second transition shaft 19. The second transition shaft drive wheel 19A is drivenly connected to the cleaning and collection transmission unit to transmit power to the cleaning and collection transmission unit.

[0035] In some implementations, see Figure 1 and Figure 2 As shown, the cleaning and collection transmission unit includes a grain auger transmission assembly, an impurity auger transmission wheel 18, and a screen box transmission assembly that are synchronously connected to the transition shaft second transmission wheel 19A. The cleaning and collection transmission unit also includes a fan transmission wheel 15 that is connected to the grain auger transmission assembly.

[0036] Specifically, such as Figure 1 As shown, the grain auger transmission assembly includes a grain auger shaft 16, and two grain auger transmission wheels 16A and 16B connected to the grain auger shaft 16. The screen box transmission assembly includes a screen box transition shaft 17, and two screen box reversing wheels 17A and 17B connected to the screen box transition shaft 17. The grain auger transmission wheel 16A, the impurity auger transmission wheel 18, and the screen box reversing wheel 17A are synchronously connected to the two transmission wheels 19A on the transition shaft. The screen box transition wheel 17B is connected to the screen box transmission wheel 20, thereby transmitting power to the grain auger, the impurity auger, and the screen box respectively. See also Figure 1 As shown, the transition shaft second drive wheel 19A, the grain auger drive wheel 16A, and the waste auger drive wheel 18 are connected by belt or chain drive. These three drives are tightly fitted to the inner side of the belt or chain, while the screen box reversing wheel 17A is tightly fitted to the outer side of the belt or chain. The rotation direction of the screen box reversing wheel 17A is opposite to that of the other three drives. For example, when the transition shaft second drive wheel 19A, grain auger drive wheel 16A, and waste auger drive wheel 18 rotate clockwise, the belt or chain drives the screen box reversing wheel 17A counterclockwise. By incorporating the screen box reversing wheel 17A, the transmission links can be reduced to some extent, making the entire power transmission structure compact and reliable. The grain auger drive wheel 16B is connected to the fan drive wheel 15, thereby transmitting power to the fan.

[0037] In some implementations, see Figure 1 As shown, the intermediate shaft transmission assembly includes an intermediate shaft 2 and intermediate shaft transmission wheel 2A and intermediate shaft transmission wheel 2B, which are connected to the intermediate shaft 2. Intermediate shaft transmission wheel 2A is connected to the engine transmission wheel 1A of the engine 1 to transmit the power of the engine 1 to the intermediate shaft 2. Intermediate shaft transmission wheel 2B is connected to the transition shaft transmission wheel 7A to transmit the power to the transition shaft 7.

[0038] In some implementations, see Figure 1 and Figure 2As shown, the grain harvester transmission system provided by this utility model also includes a drum drive wheel 6, and the intermediate shaft transmission assembly also includes an intermediate shaft drive wheel 2C. The intermediate shaft drive wheel 2C is connected to the intermediate shaft 2. The drum drive wheel 6 is connected to the intermediate shaft drive wheel 2C and the drum drive respectively, thereby transmitting power to the drum.

[0039] In some implementations, see Figure 1 As shown, the grain harvester transmission system also includes a shredder transmission assembly and a shredder transmission wheel 22 connected to the shredder transmission assembly. The intermediate shaft transmission assembly also includes an intermediate shaft transmission wheel 2D connected to the shredder transmission assembly, and the intermediate shaft transmission wheel 2D is connected to the intermediate shaft 2. The shredder transmission assembly includes a shredder transition shaft transmission wheel 21A, a shredder transition shaft transmission wheel 21B, and a shredder transition shaft 21. The shredder transition shaft transmission wheel 21A and the shredder transition shaft transmission wheel 21B are connected to the shredder transition shaft 21. The shredder transition shaft transmission wheel 21A is connected to the intermediate shaft transmission wheel 2D to transmit power to the shredder transition shaft 21. The shredder transition shaft transmission wheel 21B is connected to the shredder transmission wheel 22 to transmit power to the shredder transmission wheel 22, and then to the shredder.

[0040] In some embodiments, the intermediate shaft drive assembly includes an intermediate shaft 2, an intermediate shaft drive wheel 2A, an intermediate shaft drive wheel 2B, an intermediate shaft drive wheel 2C, and an intermediate shaft drive wheel 2D. The intermediate shaft drive wheel 2A is connected to the engine drive wheel 1A to transmit power to the intermediate shaft 2. Then, through the intermediate shaft drive wheels 2B, 2C, and 2D, three transmission paths are formed to distribute power to different working devices. In one embodiment, see [reference needed]. Figure 1As shown, intermediate shaft drive wheels 2A, 2B, and 2C can be located at one end of intermediate shaft 2, while intermediate shaft drive wheel 2D is positioned opposite at the other end of intermediate shaft 2. Specifically, intermediate shaft drive wheels 2A, 2B, and 2C are sequentially installed from the inside to the outside at one end of intermediate shaft 2. Intermediate shaft drive wheel 2A is connected to engine drive wheel 1A, intermediate shaft drive wheel 2B is connected to transition shaft drive wheel 7A, thereby transmitting power to transition shaft 7, and intermediate shaft drive wheel 2C is connected to drum drive wheel 6, thereby transmitting power to drum drive wheel 6. Intermediate shaft drive wheel 2D is installed at the other end of intermediate shaft 2 and is connected to chopper transition shaft drive wheel 21A, thereby transmitting power to chopper transition shaft 21. It is understood that the installation positions of the transmission wheels on the intermediate shaft 2 are not limited to the above-mentioned installation positions. Depending on the actual installation positions of the various devices in the grain harvester, the installation positions of the intermediate shaft transmission wheel 2A, intermediate shaft transmission wheel 2B, intermediate shaft transmission wheel 2C, and intermediate shaft transmission wheel 2D on the intermediate shaft 2 may have other structural forms, and all of them should fall within the protection scope of this utility model.

[0041] In some implementations, such as Figure 1 As shown, the grain harvester transmission system also includes a grain unloading transmission unit connected to the engine 1. This unit is used to transmit power to the unloading system, such as the unloading bottom auger and the unloading inclined auger, thereby unloading the grain from the harvester. The unloading transmission unit includes an intermediate unloading shaft 3 and two intermediate unloading shaft drive wheels 3A and 3B connected to it. The intermediate unloading shaft drive wheel 3A is connected to the engine drive wheel 1B of the engine 1 to transmit power to the intermediate unloading shaft 3. The intermediate unloading shaft drive wheel 3B is synchronously connected to the unloading bottom auger drive wheel 4 and the unloading inclined auger drive wheel 5 to transmit power to the unloading bottom auger and the unloading inclined auger, respectively.

[0042] In some embodiments, the grain harvester transmission system provided by this utility model further includes: a harvesting clutch and / or a discharging clutch. The harvesting clutch controls the transmission connection between the engine drive wheel 1A and the intermediate shaft drive wheel 2A, and the discharging clutch controls the transmission connection between the engine drive wheel 1B and the discharging intermediate shaft drive wheel 3A. By utilizing the harvesting clutch and the discharging clutch, the harvesting system and the discharging system can be controlled independently. The grain harvester can perform harvesting or discharging independently during operation, or it can achieve simultaneous harvesting and discharging through coordinated control. The mode can be selected according to the size of the harvested plot, thereby improving harvesting efficiency.

[0043] In some embodiments, the aforementioned transmission connection can be achieved using a belt or a chain. The specific transmission component used can be determined according to actual production needs. For example, the intermediate shaft transmission wheel 2B and the transition shaft transmission wheel 7A can be connected by a belt, while the transition shaft transmission wheel 7B and the bridge input shaft transmission wheel 8B can be connected by a chain.

[0044] In some implementations, see Figure 1 and Figure 2 As shown, the grain harvester transmission system provided by this utility model also includes a tensioning wheel disposed on the belt or chain for adjusting the tension of the belt or chain.

[0045] In some embodiments, the grain harvester transmission system also includes a power limit control component. This component is configured to disconnect the transmission connection when the transmission power exceeds a predetermined value, thereby protecting the normal operation of each working device of the grain harvester and preventing damage during abnormal operating conditions. For example, for belt-driven transmission connections, a tension pulley can be installed on the belt, and the transmission power limit of the transmission path (i.e., the aforementioned predetermined value) can be limited by adjusting the belt tension. For chain-driven transmission connections, a clutch can be installed on the drive shaft of the chain drive connection to control the chain's transmission power limit.

[0046] Based on this, the present invention also provides a grain harvester, including the aforementioned grain harvester transmission system.

[0047] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A transmission system for a grain harvester, characterized in that, include: Engine (1); An intermediate shaft drive assembly is connected to the engine (1) in a transmission connection. A transition shaft drive unit, comprising a first transition shaft drive assembly and a second transition shaft drive assembly, wherein the second transition shaft drive assembly is drively connected to the first transition shaft drive assembly. A header drive unit, wherein the header drive unit is configured to be driveably connected to the first transition shaft drive assembly and the header system, respectively; and... A cleaning and collection transmission unit is used to be connected to the second transition shaft transmission assembly and the cleaning and collection system respectively. The first transition shaft transmission assembly includes a first transition shaft transmission wheel (7A) for transmission connection with the intermediate shaft transmission assembly, a second transition shaft transmission wheel (7B) for transmission connection with the cutting table transmission unit, a third transition shaft transmission wheel (7C) for transmission connection with the second transition shaft transmission assembly, and a first transition shaft (7) for transmission connection between the first transition shaft transmission wheel (7A), the second transition shaft transmission wheel (7B), and the third transition shaft transmission wheel (7C).

2. The grain harvester transmission system according to claim 1, characterized in that, The cutting table transmission unit includes a bridge transmission assembly and a cutting table transmission assembly that is connected to the bridge transmission assembly. The bridge transmission assembly includes a bridge input shaft transmission wheel two (8B) that is connected to the transition shaft first transmission wheel two (7B), a bridge input shaft transmission wheel one (8A) that is connected to the cutting table transmission assembly, and a bridge input shaft (8) that is connected between the bridge input shaft transmission wheel one (8A) and the bridge input shaft transmission wheel two (8B).

3. The grain harvester transmission system according to claim 2, characterized in that, The header drive assembly includes a header intermediate shaft drive wheel one (9A) that is driven by the bridge input shaft drive wheel one (8A), a header intermediate shaft drive wheel two (9B) that is driven by the feed auger and reel of the header system, a header intermediate shaft drive wheel three (9C) that is driven by the cutting equipment of the header system, and a header intermediate shaft (9) that is driven by the header intermediate shaft drive wheel one (9A), the header intermediate shaft drive wheel two (9B) and the header intermediate shaft drive wheel three (9C).

4. The grain harvester transmission system according to claim 1, characterized in that, The second transition shaft transmission assembly includes a second transition shaft transmission wheel (19B) that is connected to the third transmission wheel (7C) of the first transition shaft, a first transmission wheel (19A) of the second transition shaft that is connected to the cleaning and collection transmission unit, and a second transition shaft (19) that is connected between the first transmission wheel (19A) of the second transition shaft and the second transmission wheel (19B) of the second transition shaft.

5. The grain harvester transmission system according to claim 4, characterized in that, The cleaning and collection transmission unit includes a grain auger transmission assembly, an impurity auger transmission wheel (18), and a sieve box transmission assembly that are synchronously connected to the transition shaft two transmission wheel one (19A). The cleaning and collection transmission unit also includes a fan transmission wheel (15) that is connected to the grain auger transmission assembly.

6. The grain harvester transmission system according to claim 5, characterized in that, The grain auger transmission assembly includes a grain auger transmission wheel one (16A) that is connected to the transmission wheel one (19A) of the transition shaft two, a grain auger transmission wheel two (16B) that is connected to the fan transmission wheel (15), and a grain auger shaft (16) that is connected to the transmission wheel one (16A) and the transmission wheel two (16B). The sieve box transmission assembly includes a sieve box reversing wheel (17A) that is synchronously connected to the first transmission wheel (19A) of the transition shaft, the first transmission wheel (16A) of the grain auger, and the transmission wheel (18) of the waste auger; a sieve box transition wheel (17B) that is connected to the sieve box transmission wheel (20); and a sieve box transition shaft (17) that is connected to the sieve box reversing wheel (17A) and the sieve box transition wheel (17B).

7. The grain harvester transmission system according to claim 1, characterized in that, The intermediate shaft drive assembly includes an intermediate shaft drive wheel 1 (2A) for drive connection with the engine drive wheel 1 (1A) of the engine (1), an intermediate shaft drive wheel 2 (2B) for drive connection with the transition shaft drive wheel 1 (7A), and an intermediate shaft (2) for drive connection between the intermediate shaft drive wheel 1 (2A) and the intermediate shaft drive wheel 2 (2B).

8. The grain harvester transmission system according to claim 7, characterized in that, The grain harvester transmission system also includes a roller drive wheel (6) for connecting to the intermediate shaft transmission assembly and the roller drive respectively. The intermediate shaft transmission assembly also includes an intermediate shaft drive wheel three (2C) that is connected to the roller drive wheel (6). The intermediate shaft drive wheel three (2C) is connected to the intermediate shaft (2).

9. The grain harvester transmission system according to claim 7, characterized in that, The grain harvester transmission system further includes a shredder transmission assembly for connection to the intermediate shaft transmission assembly and the shredder transmission wheel (22). The shredder transmission assembly includes a shredder transition shaft transmission wheel one (21A) connected to the intermediate shaft transmission wheel four (2D) of the intermediate shaft transmission assembly, a shredder transition shaft transmission wheel two (21B) connected to the shredder transmission wheel (22), and a shredder transition shaft (21) connected between the shredder transition shaft transmission wheel one (21A) and the shredder transition shaft transmission wheel two (21B). The intermediate shaft transmission wheel four (2D) is connected to the intermediate shaft (2).

10. The grain harvester transmission system according to claim 7, characterized in that, The grain harvester transmission system also includes a grain unloading transmission unit that is connected to the engine (1). The grain unloading transmission unit includes a grain unloading intermediate shaft transmission wheel one (3A), a grain unloading intermediate shaft transmission wheel two (3B), a grain unloading intermediate shaft (3) connected to the grain unloading intermediate shaft transmission wheel one (3A) and the grain unloading intermediate shaft transmission wheel two (3B), a grain unloading bottom auger transmission wheel (4), and a grain unloading inclined auger transmission wheel (5). The grain unloading intermediate shaft transmission wheel two (3B), the grain unloading bottom auger transmission wheel (4), and the grain unloading inclined auger transmission wheel (5) are synchronously connected.

11. The grain harvester transmission system according to claim 10, characterized in that, The grain harvester transmission system also includes: A harvesting clutch, said harvesting clutch being used to control the transmission connection between the engine drive wheel one (1A) and the intermediate shaft drive wheel one (2A); and / or, The unloading clutch is used to control the transmission connection between the engine drive wheel 2 (1B) and the unloading intermediate shaft drive wheel 1 (3A).

12. The grain harvester transmission system according to any one of claims 1-11, characterized in that, The transmission connection is achieved using a belt or chain.

13. The grain harvester transmission system according to claim 12, characterized in that, The grain harvester transmission system also includes a tensioning pulley mounted on the belt or chain for adjusting the tension of the belt or chain.

14. The grain harvester transmission system according to claim 12, characterized in that, The grain harvester transmission system also includes a limit power control component, which is configured to disconnect the transmission connection when the transmission power of the transmission connection exceeds a predetermined value.

15. A grain harvester, characterized in that, Includes the grain harvester drive system according to any one of claims 1-14.

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