Transmission system of longitudinal axial flow combine harvester

Abstract

The utility model relates to a longitudinal axial flow combine harvester transmission system, and belongs to the field of harvesters. The power driving device is simultaneously connected with the walking driving device, the unloading transmission device and the threshing device through belt pulleys, one end of an input shaft of the cleaning transmission box is connected with the walking driving device, and the other end of the input shaft is simultaneously connected with the cleaning transmission box and the cleaning device; the auxiliary fan shaft is connected with an input shaft of the cleaning transmission box, the auxiliary fan shaft is connected with the main fan shaft through a belt pulley, the auxiliary fan shaft is simultaneously connected with the grain lifting mechanism, the impurity lifting mechanism and the screen box transmission mechanism through belt pulleys, the main fan shaft is sleeved with a speed regulation disc, and the main fan shaft is fixedly sleeved with a fixed disc. The movable disc and the adjusting pad are both movably arranged on a main fan shaft in a sleeving mode, the adjusting pad is arranged between the fixed disc and the movable disc, the fixed disc, the movable disc and the adjusting pad form a space for sleeving a belt, and the space is in a horn shape with symmetrical longitudinal sections. The utility model is favorable for reducing the working load of the main fan shaft and realizing the regulation of the rotating speed of the fan.

Description

Technical Field

[0001] This utility model relates to the field of harvesters, and in particular to a longitudinal axial flow combine harvester transmission system. Background Technology

[0002] In a full-feed combine harvester, crops are cut by the harvesting device and then conveyed to the threshing and separating device for threshing and separating. The threshed stalks are chopped by a chopper behind the threshing drum and then scattered onto the harvested field. The threshed mixture is cleaned by a cleaning device; clean grains are conveyed to the grain bin by a grain lifting device, while unthreshed residues are returned to the upper screen or the threshing drum for secondary cleaning or secondary threshing. In a full-feed combine harvester, all devices are powered by an engine, which drives the corresponding devices through various transmission mechanisms.

[0003] In existing full-feed combine harvesters, the power of the machine's walking mechanism is typically transmitted from the engine output shaft located below the cab to the input shaft of the walking gearbox, which then drives the tracks to move the machine. The power of the working mechanism is transmitted from the engine output shaft to the blower shaft of the cleaning unit to drive the blower; the power is then transmitted from the blower shaft to the threshing drum shaft, grain auger drive shaft, waste auger drive shaft, and shredder drive input shaft of the threshing and separating unit.

[0004] In this type of transmission, the fan shaft serves as both the working component of the fan and the power input component for other devices. It has a large working load and, as a fan shaft, operates at a high speed and cannot be variable. Therefore, the assembly precision and strength requirements of the entire transmission device are high, and maintenance is also inconvenient, increasing the manufacturing, assembly, and after-sales maintenance costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a longitudinal axial flow combine harvester transmission system to solve the above-mentioned problem.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A longitudinal axial flow combine harvester transmission system includes: a power drive device, a walking drive device, a cleaning device, a header transmission device, a grain unloading transmission device, a threshing device, a chopping device, a cleaning transmission box input shaft, and a cleaning transmission box; the power drive device is connected to the walking drive device, the grain unloading transmission device, and the threshing device simultaneously via a pulley; one end of the cleaning transmission box input shaft is connected to the walking drive device, and the other end is connected to both the cleaning transmission box and the cleaning device; the cleaning transmission box is connected to the header transmission device; and the chopping device is connected to the threshing device; the cleaning device includes: a fan transmission mechanism, a grain lifting mechanism, and a waste lifting mechanism. The mechanism and screen box transmission mechanism include a fan transmission mechanism comprising an auxiliary fan shaft and a main fan shaft. The auxiliary fan shaft is connected to the input shaft of the cleaning transmission box and is connected to the main fan shaft via a pulley. The auxiliary fan shaft is also connected to the grain lifting mechanism, the impurity lifting mechanism, and the screen box transmission mechanism via pulleys. A speed regulating disc is fitted on the main fan shaft. The speed regulating disc includes a fixed disc, a moving disc, and an adjusting shim. The fixed disc is fixedly fitted on the main fan shaft, while the moving disc and the adjusting shim are movably fitted on the main fan shaft. The adjusting shim is positioned between the fixed disc and the moving disc. The fixed disc, the moving disc, and the adjusting shim form a space for the belt to be fitted, and the space is a trumpet shape with a symmetrical longitudinal cross-section.

[0007] The beneficial effects of this utility model are as follows: Compared with the existing technology where the power of the entire machine's working device is transmitted from the fan shaft, this utility model sets up an auxiliary fan shaft and a main fan shaft, and only transmits the power of the grain lifting device, waste lifting device, and cleaning device in the harvester from the auxiliary fan shaft, while transmitting the power of the walking device, unloading device, threshing and separating device, and shredder in the harvester directly from the engine. This helps to reduce the workload of the main fan shaft, thereby reducing manufacturing, assembly, and after-sales maintenance costs. In addition, by installing a speed regulating disc on the main fan shaft, it is also beneficial to adjust the diameter of the pulley when the belt is fitted between the fixed disc and the moving disc, thereby adjusting the speed of the main fan shaft and realizing the adjustment of the fan speed.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the cleaning transmission box has three gears arranged side by side that mesh sequentially. The input shaft of the cleaning transmission box passes through one of the gears and is coaxially connected to the auxiliary fan shaft.

[0010] The beneficial effects of adopting the above-mentioned further scheme are: the cleaning transmission box adopts gear transmission, and simultaneously transmits power to the cutting table transmission device and the cleaning device, resulting in high transmission efficiency.

[0011] Furthermore, the header transmission device includes: a cleaning transmission box output shaft, a header transmission box input shaft, and a header transmission box; the cleaning transmission box output shaft passes through a gear on the other side, the header transmission box input shaft is connected to the header transmission box, the cleaning transmission box output shaft and the header transmission box input shaft are connected by a pulley, a first floating tensioning pulley is provided on the pulley between the cleaning transmission box output shaft and the header transmission box input shaft, and the header transmission box is connected to the harvesting device of the harvester.

[0012] The beneficial effects of adopting the above-mentioned further scheme are: it is conducive to transmitting the power output from the cleaning transmission box to the harvesting device of the harvester, and the first floating tension wheel is conducive to realizing the transmission and disconnection of power by tensioning or loosening the belt.

[0013] Furthermore, the grain lifting mechanism includes: a grain auger input shaft, two grain auger bevel gears, and a grain auger drive shaft; one end of the grain auger input shaft is connected to the auxiliary fan shaft via a pulley, the two grain auger bevel gears mesh vertically, the two grain auger bevel gears are respectively sleeved on the other end of the grain auger input shaft and the grain auger drive shaft, and the end of the grain auger drive shaft away from the grain auger bevel gears is connected to the grain lifting device of the harvester.

[0014] The beneficial effect of adopting the above-mentioned further scheme is that the grain auger input shaft is conducive to transmitting the power on the auxiliary fan shaft to the grain auger bevel gear, and after the reversal of the two grain auger bevel gears, the power is output to the grain lifting device of the harvester.

[0015] Furthermore, the waste lifting mechanism includes: a waste auger input shaft, two waste auger bevel gears, and a waste auger drive shaft; one end of the waste auger input shaft is connected to the auxiliary fan shaft via a pulley, the two waste auger bevel gears mesh vertically, the two waste auger bevel gears are respectively sleeved on the other end of the waste auger input shaft and the waste auger drive shaft, and the end of the waste auger drive shaft away from the waste auger bevel gears is connected to the waste lifting device of the harvester.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that the input shaft of the waste auger is conducive to transmitting the power on the auxiliary fan shaft to the waste auger bevel gear, and after the reversal of the two waste auger bevel gears, the power is output to the waste lifting device of the harvester.

[0017] Furthermore, the screen box transmission mechanism includes: a transition shaft, a screen box drive shaft, and a screen box; one end of the transition shaft is connected to the auxiliary fan shaft via a pulley, and the other end is connected to the screen box drive shaft via a pulley; the screen box drive shaft is connected to the screen box; and the screen box is connected to the cleaning device of the harvester.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the transition shaft facilitates the transmission of power from the auxiliary fan shaft to the screen box drive shaft via the pulley, thereby driving the screen box and the cleaning device of the harvester to work.

[0019] Furthermore, the power drive device includes: an engine, an engine output shaft, and a power intermediate shaft; the engine output shaft passes through the engine, and one end of the engine output shaft is connected to the power intermediate shaft via a pulley.

[0020] The beneficial effects of adopting the above-mentioned further solution are: the engine output shaft passes through the engine, which is conducive to transmitting the engine's power to both sides simultaneously through the output shaft, and is conducive to the engine directly driving more harvester working devices.

[0021] Furthermore, the walking drive device includes: a walking intermediate shaft, a walking gearbox input shaft, and a walking gearbox; one end of the walking intermediate shaft is connected to the power intermediate shaft via a pulley, and the other end is connected to the cleaning transmission box input shaft via a pulley; the middle of the walking intermediate shaft is connected to the walking gearbox input shaft via a pulley; the walking gearbox input shaft is connected to the walking gearbox; and the walking gearbox is connected to the walking device of the harvester.

[0022] The unloading transmission device includes an input shaft for the unloading transmission box and an unloading transmission box; the engine output shaft at the other end of the engine is connected to the input shaft for the unloading transmission box via a pulley, and a second floating tensioning pulley is provided on the pulley between the engine output shaft and the input shaft for the unloading transmission box; the input shaft for the unloading transmission box is connected to the unloading transmission box; and the unloading transmission box is connected to the unloading device of the harvester.

[0023] The beneficial effects of adopting the above-mentioned further scheme are: the intermediate shaft of the travel facilitates the transmission of the engine output power from the power intermediate shaft to the travel gearbox, thereby driving the travel device of the harvester; the input shaft of the unloading transmission box facilitates the direct transmission of the engine output power to the unloading transmission box, thereby driving the unloading device of the harvester; and the second floating tension wheel, through tensioning and loosening, facilitates the control of the connection and disconnection of the transmission of engine power to the unloading transmission box.

[0024] Furthermore, the threshing device includes: an input shaft for the threshing drum drive box, a threshing drum drive box, and a threshing drum; the engine output shaft is connected to one end of the input shaft for the threshing drum drive box via a pulley, a third floating tensioning pulley is provided on the pulley between the engine output shaft and the input shaft for the threshing drum drive box, the other end of the input shaft for the threshing drum drive box is connected to the threshing drum drive box, the threshing drum is connected to the threshing drum drive box, and the threshing drum is connected to the threshing and separating device of the harvester.

[0025] The beneficial effects of adopting the above-mentioned further solution are: the input shaft of the threshing drum transmission box facilitates the direct transmission of the power output from the engine to the threshing drum, thereby driving the threshing and separating device of the harvester to work. Compared with the existing technology that transmits power from the main fan shaft to the threshing drum, this utility model directly transmits the power output from the engine to the threshing drum with a large working load, thereby reducing the working load of the main fan shaft.

[0026] Furthermore, the shredding device includes a shredder input shaft and a shredder; the shredder input shaft is connected to the shredder, and the shredder input shaft is connected to the input shaft of the threshing drum drive box via a pulley.

[0027] The beneficial effect of adopting the above-mentioned further solution is that the input shaft of the shredder facilitates the transmission of power to the shredder, thereby driving the shredder to work. Attached Figure Description

[0028] Figure 1 A transmission diagram illustrating the overall structure of this utility model embodiment;

[0029] Figure 2 A schematic diagram of the fan transmission mechanism and speed control disc provided in the embodiment of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Power drive unit; 2. Travel drive unit; 3. Cleaning device; 4. Header transmission device; 5. Grain unloading transmission device; 6. Threshing device; 7. Chopping device; 8. Cleaning transmission box input shaft; 9. Cleaning transmission box; 11. Engine; 12. Engine output shaft; 13. Power intermediate shaft; 21. Travel intermediate shaft; 22. Travel gearbox input shaft; 23. Travel gearbox; 31. Fan transmission mechanism; 32. Grain conveying mechanism; 33. Impurity conveying mechanism; 34. Screen box transmission mechanism; 35. Speed ​​control plate; 41. Cleaning transmission box output shaft; 42. Header transmission box input shaft; 43. Header transmission... 51. Grain unloading transmission box input shaft; 52. Grain unloading transmission box; 61. Threshing drum transmission box input shaft; 62. Threshing drum transmission box; 63. Threshing drum; 71. Chopper input shaft; 72. Chopper; 311. Auxiliary fan shaft; 312. Main fan shaft; 321. Grain auger input shaft; 322. Grain auger bevel gear; 323. Grain auger drive shaft; 331. Impurity auger input shaft; 332. Impurity auger bevel gear; 333. Impurity auger drive shaft; 341. Transition shaft; 342. Screen box drive shaft; 343. Screen box; 351. Fixed plate; 352. Moving plate; 353. Adjusting shim. Detailed Implementation

[0032] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] like Figure 1 and Figure 2As shown, a longitudinal axial flow combine harvester transmission system includes: a power drive unit 1, a walking drive unit 2, a cleaning device 3, a header transmission unit 4, a grain unloading transmission unit 5, a threshing device 6, a chopping device 7, a cleaning transmission box input shaft 8, and a cleaning transmission box 9. The power drive unit 1 is connected to the walking drive unit 2, the grain unloading transmission unit 5, and the threshing device 6 simultaneously via pulleys. One end of the cleaning transmission box input shaft 8 is connected to the walking drive unit 2, and the other end is connected to both the cleaning transmission box 9 and the cleaning device 3. The cleaning transmission box 9 is connected to the header transmission unit 4, and the chopping device 7 is connected to the threshing device 6. The cleaning device 3 includes: a fan transmission mechanism 31, a grain lifting mechanism 32, a waste lifting mechanism 33, and a screen box transmission mechanism 34. The fan transmission mechanism 31 includes an auxiliary fan shaft 311 and a main fan shaft 311. The auxiliary fan shaft 311 is connected to the input shaft 8 of the cleaning transmission box via a pulley. The auxiliary fan shaft 311 is connected to the main fan shaft 312 via a pulley. The auxiliary fan shaft 311 is also connected to the grain lifting mechanism 32, the impurity lifting mechanism 33, and the sieve box transmission mechanism 34 via a pulley. A speed regulating disc 35 is sleeved on the main fan shaft 312. The speed regulating disc 35 includes a fixed disc 351, a moving disc 352, and an adjusting pad 353. The fixed disc 351 is fixedly sleeved on the main fan shaft 312. The moving disc 352 and the adjusting pad 353 are movably sleeved on the main fan shaft 312. The adjusting pad 353 is located between the fixed disc 351 and the moving disc 352. The fixed disc 351, the moving disc 352, and the adjusting pad 353 form a space for the belt sleeve, and the space is a trumpet shape with a symmetrical longitudinal section.

[0034] It should be noted that the working principle of the speed regulating disc 35 is as follows: when the moving disc 352 is close to the fixed disc 351, the space between the fixed disc 351 and the moving disc 352 becomes smaller, and the belt is sleeved on the part of this space near the outer diameter, which is equivalent to the diameter of the pulley becoming larger. Therefore, when power is transmitted to the main fan shaft 312, the speed of the main fan shaft 312 will decrease. Conversely, when the moving disc 352 is far away from the fixed disc 351, the space between the fixed disc 351 and the moving disc 352 becomes larger, and the belt is sleeved on the part of this space near the inner diameter, which is equivalent to the diameter of the pulley becoming smaller. Therefore, when power is transmitted to the main fan shaft 312, the speed of the main fan shaft 312 will increase.

[0035] The beneficial effects of this utility model are as follows: Compared with the existing technology where the power of the entire machine's working device is transmitted from the fan shaft, this utility model sets up an auxiliary fan shaft and a main fan shaft, and only transmits the power of the grain lifting device, waste lifting device, and cleaning device in the harvester from the auxiliary fan shaft, while transmitting the power of the walking device, unloading device, threshing and separating device, and shredder in the harvester directly from the engine. This helps to reduce the workload of the main fan shaft, thereby reducing manufacturing, assembly, and after-sales maintenance costs. In addition, by installing a speed regulating disc on the main fan shaft, it is also beneficial to adjust the diameter of the pulley when the belt is fitted between the fixed disc and the moving disc, thereby adjusting the speed of the main fan shaft and realizing the adjustment of the fan speed.

[0036] Preferred, such as Figure 1 As shown, three gears meshing sequentially are arranged side by side inside the cleaning transmission box 9. The input shaft 8 of the cleaning transmission box passes through one of the gears and is coaxially connected to the auxiliary fan shaft 311.

[0037] The advantages of adopting the above-mentioned preferred scheme are: the cleaning transmission box uses gear transmission, which simultaneously transmits power to the cutting table transmission device and the cleaning device, resulting in high transmission efficiency.

[0038] Preferred, such as Figure 1 As shown, the header transmission device 4 includes: a cleaning transmission box output shaft 41, a header transmission box input shaft 42, and a header transmission box 43; the cleaning transmission box output shaft 41 passes through a gear on the other side, the header transmission box input shaft 42 is connected to the header transmission box 43, the cleaning transmission box output shaft 41 and the header transmission box input shaft 42 are connected by a pulley, a first floating tensioning pulley is provided on the pulley between the cleaning transmission box output shaft 41 and the header transmission box input shaft 42, and the header transmission box 43 is connected to the harvesting device of the harvester.

[0039] The advantages of adopting the above-mentioned preferred scheme are: it is beneficial to transmit the power output from the cleaning transmission box to the harvesting device of the harvester, and the first floating tension wheel is beneficial to realize the transmission and disconnection of power by tensioning or loosening the belt.

[0040] Preferred, such as Figure 1 As shown, the grain lifting mechanism 32 includes: a grain auger input shaft 321, two grain auger bevel gears 322, and a grain auger drive shaft 323; one end of the grain auger input shaft 321 is connected to the auxiliary fan shaft 311 via a pulley, the two grain auger bevel gears 322 mesh vertically, the two grain auger bevel gears 322 are respectively sleeved on the other end of the grain auger input shaft 321 and the grain auger drive shaft 323, and the end of the grain auger drive shaft 323 away from the grain auger bevel gears 322 is connected to the grain lifting device of the harvester.

[0041] The advantages of adopting the above-mentioned preferred solution are: the grain auger input shaft facilitates the transmission of power from the auxiliary fan shaft to the grain auger bevel gear, and after the reversal of the two grain auger bevel gears, the power is output to the grain lifting device of the harvester.

[0042] Preferred, such as Figure 1 As shown, the waste lifting mechanism 33 includes: a waste auger input shaft 331, two waste auger bevel gears 332, and a waste auger drive shaft 333; one end of the waste auger input shaft 331 is connected to the auxiliary fan shaft 311 via a pulley, the two waste auger bevel gears 332 mesh perpendicularly, the two waste auger bevel gears 332 are respectively sleeved on the other end of the waste auger input shaft 331 and the waste auger drive shaft 333, and the end of the waste auger drive shaft 333 away from the waste auger bevel gears 332 is connected to the waste lifting device of the harvester.

[0043] The beneficial effects of adopting the above-mentioned preferred scheme are: the input shaft of the waste auger facilitates the transmission of power from the auxiliary fan shaft to the waste auger bevel gear, and after the reversal of the two waste auger bevel gears, the power is output to the waste lifting device of the harvester.

[0044] Preferred, such as Figure 1 As shown, the screen box transmission mechanism 34 includes: a transition shaft 341, a screen box drive shaft 342, and a screen box 343; one end of the transition shaft 341 is connected to the auxiliary fan shaft 311 via a pulley, and the other end is connected to the screen box drive shaft 342 via a pulley; the screen box drive shaft 342 is connected to the screen box 343; and the screen box 343 is connected to the cleaning device of the harvester.

[0045] The advantages of adopting the above preferred solution are: the transition shaft facilitates the transmission of power from the auxiliary fan shaft to the screen box drive shaft via the pulley, thereby driving the screen box and the cleaning device of the harvester to work.

[0046] Preferred, such as Figure 1 As shown, the power drive device 1 includes: an engine 11, an engine output shaft 12, and a power intermediate shaft 13; the engine output shaft 12 passes through the engine 11, and one end of the engine output shaft 12 is connected to the power intermediate shaft 13 via a pulley.

[0047] The advantages of adopting the above-mentioned preferred solution are: the engine output shaft passes through the engine, which is conducive to transmitting the engine's power to both sides simultaneously through the output shaft, and is conducive to the engine directly driving more harvester working devices.

[0048] Preferred, such as Figure 1As shown, the walking drive device 2 includes: a walking intermediate shaft 21, a walking gearbox input shaft 22, and a walking gearbox 23; one end of the walking intermediate shaft 21 is connected to the power intermediate shaft 13 via a pulley, and the other end is connected to the cleaning transmission box input shaft 8 via a pulley; the middle of the walking intermediate shaft 21 is connected to the walking gearbox input shaft 22 via a pulley; the walking gearbox input shaft 22 is connected to the walking gearbox 23; and the walking gearbox 23 is connected to the walking device of the harvester.

[0049] The unloading transmission device 5 includes an input shaft 51 and an unloading transmission box 52; the engine output shaft 12 at the other end of the engine 11 is connected to the input shaft 51 of the unloading transmission box via a pulley, and a second floating tensioning pulley is provided on the pulley between the engine output shaft 12 and the input shaft 51 of the unloading transmission box; the input shaft 51 of the unloading transmission box is connected to the unloading transmission box 52; and the unloading transmission box 52 is connected to the unloading device of the harvester.

[0050] The advantages of adopting the above-mentioned preferred scheme are: the intermediate shaft of the travel facilitates the transmission of the engine output power from the power intermediate shaft to the travel gearbox, thereby driving the travel device of the harvester; the input shaft of the unloading transmission box facilitates the direct transmission of the engine output power to the unloading transmission box, thereby driving the unloading device of the harvester; and the second floating tension wheel facilitates the control of the connection and disconnection of the transmission of engine power to the unloading transmission box by tensioning and loosening.

[0051] Preferred, such as Figure 1 As shown, the threshing device 6 includes: an input shaft 61 for the threshing drum transmission box, a threshing drum transmission box 62, and a threshing drum 63; the engine output shaft 12 is connected to one end of the input shaft 61 for the threshing drum transmission box via a pulley; a third floating tensioning pulley is provided on the pulley between the engine output shaft 12 and the input shaft 61 for the threshing drum transmission box; the other end of the input shaft 61 for the threshing drum transmission box is connected to the threshing drum transmission box 62; the threshing drum 63 is connected to the threshing drum transmission box 62; and the threshing drum 63 is connected to the threshing and separating device of the harvester.

[0052] It should be noted that the threshing drum transmission box 62 has two transmission ratios, high and low, and can output two speeds to drive the threshing drum 63.

[0053] The advantages of adopting the above-mentioned preferred solution are: the input shaft of the threshing drum transmission box facilitates the direct transmission of the engine's output power to the threshing drum, thereby driving the harvester's threshing and separating device to work. Compared with the existing technology that transmits power from the main fan shaft to the threshing drum, this utility model directly transmits the engine's output power to the threshing drum with a large workload, reducing the workload of the main fan shaft.

[0054] Preferred, such as Figure 1 As shown, the shredding device 7 includes a shredder input shaft 71 and a shredder 72; the shredder input shaft 71 is connected to the shredder 72, and the shredder input shaft 71 is connected to the input shaft 61 of the threshing drum transmission box via a pulley.

[0055] It should be noted that in a preferred embodiment of this utility model, the input shaft 71 of the shredder is connected to the threshing drum transmission box 62, and the power of the threshing drum transmission box 62 is transmitted to the shredder 72 through the input shaft 71 of the shredder.

[0056] The advantages of adopting the above preferred solution are: the input shaft of the shredder facilitates the transmission of power to the shredder, thereby driving the shredder to work.

[0057] One of the key points of this utility model is that while one power output from the engine is transmitted to the travel gearbox 23 through the power intermediate shaft 13 and the travel intermediate shaft 21, the travel intermediate shaft 13 also splits off another power to drive the cleaning transmission box 9 of the harvester. The cleaning transmission box 9 outputs power in two ways to the header transmission device 4 and the cleaning device 3 respectively. The auxiliary fan shaft 311 in the cleaning device 3 then transmits power to the main fan shaft 312, the grain lifting device, the waste lifting device and the cleaning device.

[0058] Another key feature of this invention is that the other power output from the engine is directly transmitted to the threshing drum 63 and the shredder shaft 72 through the input shaft 61 of the threshing drum transmission box.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] Furthermore, the terms "first" and "second" 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.

[0061] 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 or an electrical connection; 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.

[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A longitudinal axial flow combine harvester transmission system, characterized in that, include: The device comprises a power drive unit (1), a walking drive unit (2), a cleaning device (3), a header transmission unit (4), a grain unloading transmission unit (5), a threshing device (6), a chopping device (7), a cleaning transmission box input shaft (8), and a cleaning transmission box (9). The power drive unit (1) is connected to the walking drive unit (2), the grain unloading transmission unit (5), and the threshing device (6) via pulleys. One end of the cleaning transmission box input shaft (8) is connected to the walking drive unit (2), and the other end is connected to the cleaning transmission box (9) and the cleaning device (3). The cleaning transmission box (9) is connected to the header transmission unit (4), and the chopping device (7) is connected to the threshing device (6). The cleaning device (3) includes: a blower transmission mechanism (31), a grain lifting mechanism (32), a waste lifting mechanism (33), and a screen box transmission mechanism (34). The blower transmission mechanism (31) includes an auxiliary blower shaft (311) and a main blower shaft (312). The auxiliary blower shaft (311) is connected to the input shaft (8) of the cleaning transmission box. The auxiliary blower shaft (311) is connected to the main blower shaft (312) via a pulley. The auxiliary blower shaft (311) is also connected to the grain lifting mechanism (32), the waste lifting mechanism (33), and the screen box transmission mechanism (34) via pulleys. The main blower... A speed regulating disc (35) is fitted on the shaft (312). The speed regulating disc (35) includes a fixed disc (351), a moving disc (352), and an adjusting pad (353). The fixed disc (351) is fixedly fitted on the main fan shaft (312). The moving disc (352) and the adjusting pad (353) are movably fitted on the main fan shaft (312). The adjusting pad (353) is located between the fixed disc (351) and the moving disc (352). The fixed disc (351), the moving disc (352), and the adjusting pad (353) form a space for the belt to be fitted, and the space is a trumpet shape with a longitudinal cross-section symmetry.

2. The longitudinal axial flow combine harvester transmission system according to claim 1, characterized in that, The cleaning transmission box (9) has three gears arranged side by side that mesh sequentially. The input shaft (8) of the cleaning transmission box passes through one of the gears and is coaxially connected to the auxiliary fan shaft (311).

3. The longitudinal axial flow combine harvester transmission system according to claim 2, characterized in that, The header transmission device (4) includes: a cleaning transmission box output shaft (41), a header transmission box input shaft (42), and a header transmission box (43); the cleaning transmission box output shaft (41) passes through a gear on the other side, the header transmission box input shaft (42) is connected to the header transmission box (43), the cleaning transmission box output shaft (41) and the header transmission box input shaft (42) are connected by a pulley, a first floating tensioning wheel is provided on the pulley between the cleaning transmission box output shaft (41) and the header transmission box input shaft (42), and the header transmission box (43) is connected to the harvesting device of the harvester.

4. The longitudinal axial flow combine harvester transmission system according to claim 1, characterized in that, The grain lifting mechanism (32) includes: a grain auger input shaft (321), two grain auger bevel gears (322), and a grain auger drive shaft (323); one end of the grain auger input shaft (321) is connected to the auxiliary fan shaft (311) via a pulley, the two grain auger bevel gears (322) mesh vertically, the two grain auger bevel gears (322) are respectively sleeved on the other end of the grain auger input shaft (321) and the grain auger drive shaft (323), and the end of the grain auger drive shaft (323) away from the grain auger bevel gears (322) is connected to the grain lifting device of the harvester.

5. The longitudinal axial flow combine harvester transmission system according to claim 1, characterized in that, The waste lifting mechanism (33) includes: a waste auger input shaft (331), two waste auger bevel gears (332), and a waste auger drive shaft (333); one end of the waste auger input shaft (331) is connected to the auxiliary fan shaft (311) via a pulley, the two waste auger bevel gears (332) mesh vertically, the two waste auger bevel gears (332) are respectively sleeved on the other end of the waste auger input shaft (331) and the waste auger drive shaft (333), and the end of the waste auger drive shaft (333) away from the waste auger bevel gears (332) is connected to the waste lifting device of the harvester.

6. The longitudinal axial flow combine harvester transmission system according to claim 1, characterized in that, The screen box transmission mechanism (34) includes: a transition shaft (341), a screen box drive shaft (342), and a screen box (343); one end of the transition shaft (341) is connected to the auxiliary fan shaft (311) via a pulley, and the other end is connected to the screen box drive shaft (342) via a pulley. The screen box drive shaft (342) is connected to the screen box (343), and the screen box (343) is connected to the cleaning device of the harvester.

7. The longitudinal axial flow combine harvester transmission system according to claim 1, characterized in that, The power drive device (1) includes: an engine (11), an engine output shaft (12) and a power intermediate shaft (13); the engine output shaft (12) passes through the engine (11), and the engine output shaft (12) at one end of the engine (11) is connected to the power intermediate shaft (13) via a pulley.

8. The longitudinal axial flow combine harvester transmission system according to claim 7, characterized in that, The walking drive device (2) includes: a walking intermediate shaft (21), a walking gearbox input shaft (22), and a walking gearbox (23); one end of the walking intermediate shaft (21) is connected to the power intermediate shaft (13) via a pulley, and the other end is connected to the cleaning transmission box input shaft (8) via a pulley; the middle of the walking intermediate shaft (21) is connected to the walking gearbox input shaft (22) via a pulley; the walking gearbox input shaft (22) is connected to the walking gearbox (23); and the walking gearbox (23) is connected to the walking device of the harvester. The unloading transmission device (5) includes an input shaft (51) and an unloading transmission box (52); the engine output shaft (12) at the other end of the engine (11) is connected to the input shaft (51) of the unloading transmission box via a pulley, and a second floating tensioning wheel is provided on the pulley between the engine output shaft (12) and the input shaft (51) of the unloading transmission box; the input shaft (51) of the unloading transmission box is connected to the unloading transmission box (52), and the unloading transmission box (52) is connected to the unloading device of the harvester.

9. The longitudinal axial flow combine harvester transmission system according to claim 7, characterized in that, The threshing device (6) includes: an input shaft (61) of the threshing drum transmission box, a threshing drum transmission box (62) and a threshing drum (63); the engine output shaft (12) is connected to one end of the input shaft (61) of the threshing drum transmission box via a pulley, a third floating tensioning pulley is provided on the pulley between the engine output shaft (12) and the input shaft (61) of the threshing drum transmission box, the other end of the input shaft (61) of the threshing drum transmission box is connected to the threshing drum transmission box (62), the threshing drum (63) is connected to the threshing drum transmission box (62), and the threshing drum (63) is connected to the threshing and separating device of the harvester.

10. The longitudinal axial flow combine harvester transmission system according to claim 9, characterized in that, The shredding device (7) includes a shredder input shaft (71) and a shredder (72); the shredder input shaft (71) is connected to the shredder (72), and the shredder input shaft (71) is connected to the input shaft (61) of the threshing drum drive box via a pulley.

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