Agricultural machine power gear shifting and power takeoff integrated transmission

Abstract

The invention discloses an agricultural machine power gear shifting and power takeoff integrated transmission, and belongs to the field of agricultural machine power gear shifting transmission systems. According to the agricultural machine transmission comprising the dead axle gear system and the clutch system, combination and separation of a clutch are controlled through an electric control hydraulic system, and the functions of power gear shifting, power reversing and power output of an electric control power takeoff are achieved. An input shaft and an output shaft of the transmission are coaxially arranged, the center of the output shaft is sleeved with a shaft of the power takeoff in an empty mode, and the wet clutch is responsible for power transmission and switching of different gears. According to the transmission, forward three-gear power gear shifting, forward or reverse gear power reversing and automatic control over power output of the electric control power takeoff can be achieved, the structural design is optimized, so that the transmission is compact in structure and high in adaptability, the operation efficiency of agricultural machinery can be improved, the labor intensity is reduced, and the transmission adapts to load changes.

Description

Technical Field

[0001] The present invention belongs to the field of agricultural machinery power shift transmission systems, and in particular relates to an agricultural machinery power shift and power take-off integrated transmission. Background Art

[0002] Currently, agricultural power machinery generally uses a mechanical dry clutch with a mechanical release mechanism. To change gears, change driving direction, or switch power take-off mechanisms, the operator must step on the clutch pedal to cut off the engine power. The operator then uses the mechanical shift lever to select the desired gear or engage or disengage the power take-off mechanism. This requires not only stepping on the clutch pedal but also requiring the vehicle to be parked before switching forward / reverse or shifting gears. This entire process is cumbersome and laborious, significantly impacting operational efficiency. In response to the above situation, in recent years, the domestic agricultural machinery industry has been vigorously promoting the development of power shifting technology. Patent No. CN211288624U discloses a three-axis tractor power high and low gear and power reversing device, which realizes two power high and low gears and reversing functions through different combinations of four groups of clutches. Since the operating conditions of agricultural machinery are relatively complex, more power shifting gears are required to adapt to more complex working conditions. In addition, since the power take-off mechanism is also frequently switched during use, and the agricultural machinery chassis has extremely high requirements for the structural space layout of the transmission system, a highly integrated product is needed to simultaneously meet the functional requirements of more power shifting gears, reversing, and automatic switching of power take-off. At the same time, the high degree of integration meets the structural layout requirements and promotes the progress of agricultural machinery modernization technology. Summary of the Invention

[0003] The present invention aims to provide a compact power shift transmission for agricultural machinery, which realizes automatic power shifting, reversing and electronically controlled power take-off output, thereby improving the operating efficiency of agricultural machinery and reducing labor intensity.

[0004] An agricultural machinery power shift and power take-off integrated transmission, comprising: Input shaft, used to connect with the engine; The output shaft is used to transmit the speed-changed power to the agricultural machinery's travel system or working mechanism; A power take-off shaft, connected to the power take-off; A clutch assembly, comprising a first clutch and a second clutch; At least one transmission mechanism, the input end of each transmission mechanism is an input shaft, and the output end is an output shaft or a power take-off shaft.

[0005] The invention relates to an integrated transmission for power shifting and power take-off of agricultural machinery. The input shaft and the output shaft are coaxially arranged front to back. The output shaft is a hollow shaft. The power take-off shaft is concentrically sleeved in the center of the output shaft.

[0006] A transmission integrated with power shifting and a power take-off for agricultural machinery, wherein the transmission mechanism includes a first transmission mechanism, the first transmission mechanism includes a first clutch, the first clutch connects an input shaft and a power take-off shaft, and is used for power transmission and separation between the input shaft and the power take-off shaft, and the first transmission mechanism realizes the output of the power take-off shaft.

[0007] A transmission integrated with power shifting and power take-off for agricultural machinery, wherein the transmission mechanism includes a second transmission mechanism, the second transmission mechanism includes a second clutch, the second clutch connects the input shaft and the output shaft, and is used for power transmission and separation between the input shaft and the output shaft, and the second transmission mechanism realizes a first gear with a transmission ratio of 1.

[0008] A transmission integrated with power shifting and power take-off for agricultural machinery, wherein the inner plate group of the second clutch is connected to the outer plate group of the first clutch via an adapter bracket, and the adapter bracket is used for power transmission and separation between the first clutch and the second clutch.

[0009] A transmission integrating power shifting and power take-off for agricultural machinery, wherein a first clutch and a second clutch share a peripheral plate group.

[0010] A transmission with an integrated power shift and power take-off for agricultural machinery includes a second intermediate shaft positioned parallel to the input shaft, a transmission mechanism including a third transmission mechanism, and a clutch assembly including a third clutch. The third transmission mechanism includes a first gear set between the second intermediate shaft and the input shaft, a third clutch, and a second gear set between the second intermediate shaft and the output shaft. The first gear set consists of a third gear and a fourth gear, which mesh with each other to transmit power. The second gear set consists of a sixth gear and a seventh gear, which mesh with each other to transmit power. The third transmission mechanism achieves the second gear position.

[0011] An integrated transmission for power shifting and power take-off of agricultural machinery features a third intermediate shaft positioned parallel to the input shaft. The transmission mechanism includes a fourth transmission mechanism, and the clutch assembly also includes a fourth clutch. The fourth transmission mechanism comprises a third gear set between the third intermediate shaft and the input shaft, a fourth clutch, and a fourth gear set between the third intermediate shaft and the output shaft. The third gear set consists of a first gear, a second gear, and an idler gear between them. The fourth gear set consists of a tenth gear, an eleventh gear, and an idler gear between them. The third and fourth gear sets ensure that the input and output shafts rotate in the same direction, and the fourth transmission mechanism achieves the third gear.

[0012] A transmission with an integrated power shift and power take-off for agricultural machinery includes a fourth intermediate shaft positioned parallel to the input shaft, a transmission mechanism including a fifth transmission mechanism, a clutch assembly including a fifth clutch, and a fifth gear set between the fourth intermediate shaft and the input shaft, a fifth clutch, and a sixth gear set between the fourth intermediate shaft and the output shaft. The fifth gear set comprises a third gear and a fifth gear, which mesh with the fifth gear to transmit power. The sixth gear set comprises a ninth gear, an idler gear, and a seventh gear. The fifth and fourth gear sets ensure that the input and output shafts rotate in opposite directions, enabling the fifth transmission mechanism to achieve reverse gear.

[0013] A transmission integrated with power shifting and a power take-off for agricultural machinery, wherein the clutch assembly further comprises a third clutch, a fourth clutch, and a fifth clutch; the first clutch, the second clutch, the third clutch, the fourth clutch, and the fifth clutch are all wet clutches.

[0014] The present invention can meet the requirements of agricultural machinery of different horsepower ranges for transmission systems, realize multi-gear power shifting, power reversing and electronically controlled power output functions during operation, realize automation of the entire operation process, improve operation efficiency, reduce energy consumption, reduce labor intensity, and provide a technical platform for unmanned operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0016] Figure 1 Schematic diagram of the transmission system of embodiment 1 of the present invention.

[0017] Figure 2 This is a schematic diagram of the power take-off shaft output of Example 1 of the present invention.

[0018] Figure 3 This is a schematic diagram of the first gear output of Example 1 of the present invention.

[0019] Figure 4 This is a schematic diagram of the second gear output of Example 1 of the present invention.

[0020] Figure 5 This is a schematic diagram of the third gear output of Example 1 of the present invention.

[0021] Figure 6 This is a schematic diagram of the reverse gear output according to embodiment 1 of the present invention.

[0022] Figure 7Schematic diagram of the transmission system of embodiment 2 of the present invention.

[0023] Description of the drawings: 11-input shaft, 15-output shaft, 16-power take-off shaft, 12-second intermediate shaft, 13-third intermediate shaft, 14-fourth intermediate shaft, 17-idler shaft, 1a-first gear, 1b-second gear, 1c-third gear, 1d-fourth gear, 1e-fifth gear, 1f-sixth gear, 1g-seventh gear, 1h-idler, 1i-ninth gear, 1j-tenth gear, 1k-eleventh gear, 21-first clutch, 22-second clutch, 23-third clutch, 24-fourth clutch, 25-fifth clutch. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The following first describes the concepts involved in this application with reference to the accompanying drawings. It should be noted that the following description of each concept is intended only to make the content of this application easier to understand and does not limit the scope of protection of this application. At the same time, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The following detailed description of this application will be made with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] Example 1: Refer to the attached Figure 1 As shown, this embodiment provides an agricultural machinery power shift and power take-off integrated transmission, specifically including the following components: Fixed axis gear system The shaft system includes the input shaft 11, output shaft 15, power take-off shaft 16, second intermediate shaft 12, third intermediate shaft 13, fourth intermediate shaft 14, and idler shaft 17. The second, third, and fourth intermediate shafts 12, 13, and 14 are parallel to the input shaft 11 and arranged with a fixed center distance. The input shaft 11 and output shaft 15 are coaxially arranged front to back. The output shaft 15 is a hollow shaft, and the power take-off shaft 16 is concentrically mounted in the center of the output shaft 15.

[0027] Gear set: The first gear 1a and the third gear 1c are arranged on the input shaft 11; the second gear 1b is arranged on the third intermediate shaft 13, and the tenth gear 1j is installed on the idler sleeve; the fourth gear 1d is arranged on the second intermediate shaft 12, and the sixth gear 1f is installed on the idler sleeve; the seventh gear 1g and the eleventh gear 1k are arranged on the output shaft 15; the idler gear 1h is arranged on the idler shaft 17; the fifth gear 1e is arranged on the fourth intermediate shaft 14, and the ninth gear 1i is installed on the idler sleeve.

[0028] Wet clutch system The clutch system includes a first clutch 21, a second clutch 22, a third clutch 23, a fourth clutch 24, and a fifth clutch 25. The outer clutch plate assembly of the first clutch 21 is fixed to the input shaft 11, and the inner clutch plate assembly is fixed to the power take-off shaft 16. The inner clutch plate assembly of the second clutch 22 is fixed to the outer clutch plate assembly of the first clutch 21 via an adapter bracket, and the outer clutch plate assembly of the second clutch 22 is fixed to the output shaft 15. The outer clutch plate assembly of the third clutch 23 is fixed to the second intermediate shaft 12, and the inner clutch plate assembly of the third clutch 23 is fixed to the sixth gear 1f. The outer clutch plate assembly of the fourth clutch 24 is fixed to the third intermediate shaft 13, and the inner clutch plate assembly is fixed to the tenth gear 1j. The outer clutch plate assembly of the fifth clutch 25 is fixed to the fourth intermediate shaft 14, and the inner clutch plate assembly is fixed to the ninth gear 1i.

[0029] Power transmission process Refer to the attached Figure 2 As shown, the first transmission mechanism realizes the power output function of the power take-off shaft 16: when the first clutch 21 is engaged, power is directly transmitted from the input shaft 11 to the power take-off shaft 16, realizing the power output of the power take-off shaft 16 and providing power for the working tool.

[0030] Refer to the attached Figure 3 As shown, the first gear function realized by the second transmission mechanism is: when the second clutch 22 is engaged, the power is directly transmitted to the output shaft 15 through the input shaft 11, realizing the first gear with a transmission ratio of 1. At this time, the output shaft 15 rotates synchronously with the input shaft 11, providing basic driving power for the agricultural machinery.

[0031] Refer to the attached Figure 4 As shown, the second gear function realized by the third transmission mechanism is: when the third clutch 23 is engaged, the power is transmitted to the second intermediate shaft 12 through the third gear 1c of the input shaft 11 and the fourth gear 1d engaged therewith, and then transmitted to the sixth gear 1f through the third clutch 23. Subsequently, the sixth gear 1f is engaged with the seventh gear 1g to transmit the power to the output shaft 15, realizing the second gear and increasing the speed gear selection of the agricultural machinery.

[0032] Refer to the attached Figure 5As shown, the fourth transmission mechanism realizes the third gear function: when the fourth clutch 24 is engaged, power is transmitted from the first gear 1a of the input shaft 11 to the second gear 1b meshing therewith, driving the third intermediate shaft 13 to rotate, and then transmitted to the tenth gear 1j through the fourth clutch 24. The tenth gear 1j meshes with the eleventh gear 1k, transmitting power to the output shaft 15, realizing the third gear, and further improving the driving speed range of the agricultural machinery.

[0033] Refer to the attached Figure 6 As shown, the reverse gear function realized by the fifth transmission mechanism is: when the fifth clutch 25 is engaged, the power is transmitted to the fourth intermediate shaft 14 through the third gear 1c and the fifth gear 1e of the input shaft 11 in sequence, and then transmitted to the ninth gear 1i through the fifth clutch 25. The ninth gear 1i drives the idler gear 1h to rotate, and the idler gear 1h engages with the seventh gear 1g, transmitting the power to the output shaft 15, realizing the reverse gear, so that the agricultural machine can realize the reverse operation.

[0034] Control process The wet clutch system achieves clutch engagement and disengagement through an electronically controlled hydraulic system. During agricultural machinery operation, the electronically controlled hydraulic system can be controlled by control buttons or remote control signal inputs, based on load, driving requirements, and other working conditions, thereby achieving engagement and disengagement of different clutches, completing power shifting, power reversing, and electronically controlled power take-off power output functions. For example, when it is necessary to increase driving speed, the corresponding clutch is controlled to engage and switch to a higher gear; when reversing is required, the fifth clutch 25 is controlled to engage to achieve reverse driving; when power is required to provide power to the working tool, the first clutch 21 is controlled to engage to achieve power output from the power take-off shaft 16. This electronically controlled operation method simplifies the cumbersome manual operation process of traditional mechanical products, improves operating efficiency, reduces the labor intensity of operators, and provides a technical foundation for unmanned operation.

[0035] Effect: In this embodiment, the first clutch 21 and the second clutch 22 are connected by an adapter bracket. The adapter bracket is reliably connected, so that the power transmission between the first clutch 21 and the second clutch 22 is more stable. The clutch internal plate groups of the third clutch 23, the fourth clutch 24, and the fifth clutch 25 are respectively connected to the spoke centers of the sixth gear 1f, the tenth gear 1j, and the ninth gear 1i. During the power transmission process, this clutch installation method will transmit torque more stably.

[0036] Example 2: Refer to the attached Figure 7 As shown, this embodiment provides an agricultural machinery power shift and power take-off integrated transmission, specifically including the following components: Fixed axis gear system The shaft system includes the input shaft 11, output shaft 15, power take-off shaft 16, second intermediate shaft 12, third intermediate shaft 13, fourth intermediate shaft 14, and idler shaft 17. The second, third, and fourth intermediate shafts 12, 13, and 14 are parallel to the input shaft 11 and arranged with a fixed center distance. The input shaft 11 and output shaft 15 are coaxially arranged front to back. The output shaft 15 is a hollow shaft, and the power take-off shaft 16 is concentrically mounted in the center of the output shaft 15.

[0037] Gear set: The third gear 1c is arranged on the input shaft 11, and the first gear 1a and the third gear 1c share a spoke; the second gear 1b is arranged on the third intermediate shaft 13, and the tenth gear 1j is installed on the idler sleeve; the fourth gear 1d is arranged on the second intermediate shaft 12, and the sixth gear 1f is installed on the idler sleeve; the seventh gear 1g and the eleventh gear 1k are arranged on the output shaft 15, and they share a spoke; the idler gear 1h is arranged on the idler shaft 17; the fifth gear 1e is arranged on the fourth intermediate shaft 14, and the ninth gear 1i is installed on the idler sleeve.

[0038] Wet clutch system It includes a first clutch 21, a second clutch 22, a third clutch 23, a fourth clutch 24, and a fifth clutch 25. Among them: The outer clutch plate assembly of the first clutch 21 is fixed to the input shaft 11, and the inner clutch plate assembly is fixed to the power take-off shaft 16. The second clutch 22 shares a common outer clutch plate assembly with the first clutch 21, and the inner clutch plate assembly of the second clutch 22 is fixed to the output shaft 15. The outer clutch plate assembly of the third clutch 23 is fixed to the sixth gear 1f, and the inner clutch plate assembly is fixed to the second intermediate shaft 12. The outer clutch plate assembly of the fourth clutch 24 is fixed to the tenth gear 1j, and the inner clutch plate assembly is fixed to the third intermediate shaft 13. The outer clutch plate assembly of the fifth clutch 25 is fixed to the ninth gear 1i, and the inner clutch plate assembly is fixed to the fourth intermediate shaft 14.

[0039] Power transmission process The first transmission mechanism realizes the power output function of the power take-off shaft 16: when the first clutch 21 is engaged, power is directly transmitted from the input shaft 11 to the power take-off shaft 16, realizing the power output of the power take-off shaft 16 and providing power for the working tool.

[0040] The first gear function realized by the second transmission mechanism: when the second clutch 22 is engaged, the power is directly transmitted to the output shaft 15 through the input shaft 11, realizing the first gear with a transmission ratio of 1. At this time, the output shaft 15 rotates synchronously with the input shaft 11, providing basic driving power for the agricultural machinery.

[0041] The second gear function realized by the third transmission mechanism: when the third clutch 23 is engaged, the power is transmitted to the second intermediate shaft 12 through the third gear 1c of the input shaft 11 and the fourth gear 1d engaged therewith, and then transmitted to the sixth gear 1f through the third clutch 23. Subsequently, the sixth gear 1f is engaged with the seventh gear 1g to transmit the power to the output shaft 15, realizing the second gear and increasing the speed gear selection of the agricultural machinery.

[0042] The third gear function realized by the fourth transmission mechanism: when the fourth clutch 24 is engaged, power is transmitted from the first gear 1a of the input shaft 11 to the second gear 1b meshing with it, driving the third intermediate shaft 13 to rotate, and then transmitted to the tenth gear 1j through the fourth clutch 24. The tenth gear 1j meshes with the eleventh gear 1k, transmitting power to the output shaft 15, realizing the third gear, and further improving the driving speed range of the agricultural machinery.

[0043] The reverse gear function realized by the fifth transmission mechanism: when the fifth clutch 25 is engaged, the power is transmitted to the fourth intermediate shaft 14 through the third gear 1c and the fifth gear 1e of the input shaft 11 in sequence, and then transmitted to the ninth gear 1i through the fifth clutch 25. The ninth gear 1i drives the idler gear 1h to rotate, and the idler gear 1h engages with the seventh gear 1g, transmitting the power to the output shaft 15, realizing the reverse gear, so that the agricultural machine can realize the reverse operation.

[0044] Control process The wet clutch system achieves clutch engagement and disengagement through an electronically controlled hydraulic system. During agricultural machinery operation, the electronically controlled hydraulic system can be controlled by control buttons or remote control signal input according to load, driving requirements, and other working conditions, thereby achieving engagement and disengagement of different clutches, completing power shifting, power reversing, and electronically controlled power take-off power output functions. For example, when it is necessary to increase driving speed, the corresponding clutch is controlled to engage and switch to a higher gear; when reversing is required, the fifth clutch 25 is controlled to engage to achieve reverse driving; when power is required to provide power to the working tool, the first clutch 21 is controlled to engage to achieve power output from the power take-off shaft 16. This electronically controlled operation method simplifies the cumbersome manual operation process of traditional mechanical products, improves operating efficiency, reduces the labor intensity of operators, and provides a technical foundation for unmanned operation.

[0045] Effect: Compared to Example 1, this embodiment employs a shared spoke design for the first and third gears 1a and 1c, as well as the eleventh and seventh gears 1k and 1g. While meeting transmission requirements, this design significantly reduces weight and manufacturing costs compared to using two independent gears, and allows for a more compact arrangement between adjacent drive shafts. The adapter bracket between the first and second clutches 21 and 22 is eliminated, allowing both to share a common clutch outer plate pack. This not only further reduces axial dimensions and enhances structural compactness, but also reduces the number of parts and assembly costs, making it particularly suitable for applications with limited axial space. The mounting arrangement of the clutch outer plate packs and clutch inner plate packs of the third, fourth, and fifth clutches is opposite to that of Example 1. The clutch outer plate packs of the third, fourth, and fifth clutches 23, 24, and 25 are fixed to the outer spokes of the sixth, tenth, and ninth gears 1i, respectively. This better meets the requirements for high vibration damping performance in environments where high vibration damping performance is required.

[0046] Example 3: An agricultural machinery power shift and power take-off integrated transmission, comprising: Input shaft 11, used for connecting to the engine; The output shaft 15 is used to transmit the power after the speed change to the agricultural machine's travel system or working mechanism; A power take-off shaft 16, connected to the power take-off; A clutch assembly, comprising a first clutch 21 and a second clutch 22; At least one transmission mechanism, the input end of each transmission mechanism is an input shaft 11 , and the output end is an output shaft 15 or a power take-off shaft 16 .

[0047] An agricultural machinery power shift and power take-off integrated transmission, wherein the input shaft 11 and the output shaft 15 are coaxially arranged front to back, the output shaft 15 is a hollow shaft, and the power take-off shaft 16 is concentrically sleeved in the center of the output shaft 15.

[0048] A transmission integrated with power shifting and power take-off for agricultural machinery, wherein the transmission mechanism includes a first transmission mechanism, the first transmission mechanism includes a first clutch 21, the first clutch 21 connects the input shaft 11 and the power take-off shaft 16, and is used for power transmission and separation between the input shaft 11 and the power take-off shaft 16, and the first transmission mechanism realizes the output of the power take-off shaft 16.

[0049] A transmission integrated with power shifting and power take-off for agricultural machinery, wherein the transmission mechanism includes a second transmission mechanism, the second transmission mechanism includes a second clutch 22, the second clutch 22 connects the input shaft 11 and the output shaft 15, and is used for power transmission and separation between the input shaft 11 and the output shaft 15, and the second transmission mechanism realizes a first gear with a transmission ratio of 1.

[0050] An integrated transmission for power shifting and power take-off of agricultural machinery, wherein the inner plate group of the second clutch 22 is connected to the outer plate group of the first clutch 21 via an adapter bracket, and the adapter bracket is used for power transmission and separation between the first clutch 21 and the second clutch 22.

[0051] A transmission integrating power shifting and power take-off for agricultural machinery, wherein a first clutch 21 and a second clutch 22 share a common outer plate group.

[0052] A transmission with an integrated power shift and power take-off for agricultural machinery features a second intermediate shaft 12 positioned parallel to an input shaft 11. The transmission mechanism includes a third transmission mechanism, and the clutch assembly also includes a third clutch 23. The third transmission mechanism comprises a first gear set between the second intermediate shaft 12 and the input shaft 11, the third clutch 23, and a second gear set between the second intermediate shaft 12 and the output shaft 15. The first gear set consists of a third gear 1c and a fourth gear 1d, which mesh with each other to transmit power. The second gear set consists of a sixth gear 1f and a seventh gear 1g, which mesh with each other to transmit power. The third transmission mechanism achieves the second gear position.

[0053] An integrated transmission for agricultural machinery power shifting and power take-off features a third intermediate shaft 13 positioned parallel to the input shaft 11. The transmission mechanism includes a fourth transmission mechanism, and the clutch assembly also includes a fourth clutch 24. The fourth transmission mechanism comprises a third gear set between the third intermediate shaft 13 and the input shaft 11, a fourth clutch 24, and a fourth gear set between the third intermediate shaft 13 and the output shaft 15. The third gear set consists of a first gear 1a, a second gear 1b, and an idler gear between them. The fourth gear set consists of a tenth gear 1j, an eleventh gear 1k, and an idler gear between them. The third and fourth gear sets ensure that the input shaft 11 and the output shaft 15 rotate in the same direction, enabling the fourth transmission mechanism to achieve the third gear.

[0054] A transmission with an integrated power shift and power take-off for agricultural machinery features a fourth intermediate shaft 14 positioned parallel to the input shaft 11. The transmission mechanism includes a fifth transmission mechanism, and the clutch assembly also includes a fifth clutch 25. The fifth transmission mechanism comprises a fifth gear set between the fourth intermediate shaft 14 and the input shaft 11, the fifth clutch 25, and a sixth gear set between the fourth intermediate shaft 14 and the output shaft 15. The fifth gear set consists of a third gear 1c and a fifth gear 1e, which mesh with each other to transmit power. The sixth gear set consists of a ninth gear 1i, an idler gear 1h, and a seventh gear 1g. The fifth and fourth gear sets ensure that the input shaft 11 and the output shaft 15 rotate in opposite directions, enabling the fifth transmission mechanism to achieve reverse gear.

[0055] A transmission integrated with power shifting and power take-off for agricultural machinery, wherein the clutch assembly further comprises a third clutch 23, a fourth clutch 24, and a fifth clutch 25; the first clutch 21, the second clutch 22, the third clutch 23, the fourth clutch 24, and the fifth clutch 25 are all wet clutches.

[0056] It should also be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and do not impose any form of limitation on the implementation methods of the technology of the present invention. Any person skilled in the art may make slight changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A transmission integrated with power shift and power take-off for agricultural machinery, characterized in that: include: An input shaft (11) for connecting to an engine; An output shaft (15) is used to transmit the power after the speed change to the agricultural machine's travel system or working mechanism; A power take-off shaft (16), connected to the power take-off; A clutch assembly comprising a first clutch (21) and a second clutch (22); At least one transmission mechanism, wherein the input end of each transmission mechanism is an input shaft (11), and the output end is an output shaft (15) or a power take-off shaft (16).

2. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: The input shaft (11) and the output shaft (15) are coaxially arranged front to back, the output shaft (15) is a hollow shaft, and the power take-off shaft (16) is concentrically sleeved at the center of the output shaft (15).

3. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: The transmission mechanism comprises a first transmission mechanism, the first transmission mechanism comprises a first clutch (21), the first clutch (21) connects the input shaft (11) and the power take-off shaft (16), and is used for power transmission and separation between the input shaft (11) and the power take-off shaft (16).

4. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: The transmission mechanism includes a second transmission mechanism, the second transmission mechanism includes a second clutch (22), the second clutch (22) connects the input shaft (11) and the output shaft (15), and is used for power transmission and separation between the input shaft (11) and the output shaft (15).

5. The agricultural machinery power shift and power take-off integrated transmission according to any one of claims 1 to 4, characterized in that: The inner plate group of the second clutch (22) is connected to the outer plate group of the first clutch (21) via an adapter bracket, and the adapter bracket is used for power transmission and separation between the first clutch (21) and the second clutch (22).

6. The agricultural machinery power shift and power take-off integrated transmission according to any one of claims 1 to 4, characterized in that: The first clutch (21) and the second clutch (22) share a peripheral plate group.

7. The agricultural machinery power shift and power take-off integrated transmission according to any one of claim 1, characterized in that: A second intermediate shaft (12) is provided on one side of the input shaft (11) and is placed parallel to the input shaft. The transmission mechanism includes a third transmission mechanism. The clutch assembly also includes a third clutch (23). The third transmission mechanism includes a first gear set between the second intermediate shaft (12) and the input shaft (11), a third clutch (23), and a second gear set between the second intermediate shaft (12) and the output shaft (15). The second gear set includes a sixth gear (1f) and a seventh gear (1g).

8. The agricultural machinery power shift and power take-off integrated transmission according to claim 7, characterized in that: The outer plate group of the third clutch (23) is fixed on the second intermediate shaft (12), and the inner plate group is fixed on the spoke center of the sixth gear (1f).

9. The agricultural machinery power shift and power take-off integrated transmission according to claim 7, characterized in that: The outer plate group of the third clutch (23) is fixed to the outer periphery of the spoke of the sixth gear (1f), and the inner plate group is fixed to the second intermediate shaft (12).

10. The agricultural machinery power shift and power take-off integrated transmission according to any one of claim 1, characterized in that: A third intermediate shaft (13) is provided on one side of the input shaft (11) and is placed parallel to the input shaft. The transmission mechanism includes a fourth transmission mechanism. The clutch assembly also includes a fourth clutch (24). The fourth transmission mechanism includes a third gear set between the third intermediate shaft (13) and the input shaft (11), a fourth clutch (24), and a fourth gear set between the third intermediate shaft (13) and the output shaft (15). The fourth gear set includes a tenth gear (1j) and an eleventh gear (1k).

11. The agricultural machinery power shift and power take-off integrated transmission according to claim 10, characterized in that: The outer plate group of the fourth clutch (24) is fixed on the third intermediate shaft (13), and the inner plate group is fixed on the center of the spoke of the tenth gear (1j).

12. The agricultural machinery power shift and power take-off integrated transmission according to claim 10, characterized in that: The outer plate group of the fourth clutch (24) is fixed to the outer periphery of the spoke of the tenth gear (1j), and the inner plate group is fixed to the third intermediate shaft (13).

13. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: A fourth intermediate shaft (14) is provided on one side of the input shaft (11) and is placed parallel to the input shaft (11). The transmission mechanism includes a fifth transmission mechanism. The clutch assembly also includes a fifth clutch (25). The fifth transmission mechanism includes a fifth gear set between the fourth intermediate shaft (14) and the input shaft (11), a fifth clutch (25), and a sixth gear set between the fourth intermediate shaft (14) and the output shaft (15). The sixth gear set includes a ninth gear (1i) and a seventh gear (1g).

14. The agricultural machinery power shift and power take-off integrated transmission according to claim 13, characterized in that: The clutch inner plate group of the fifth clutch (25) is fixed to the center of the spoke of the ninth gear (1i), and the clutch outer plate group is fixed to the fourth intermediate shaft (14).

15. The agricultural machinery power shift and power take-off integrated transmission according to claim 13, characterized in that: The clutch outer plate group of the fifth clutch (25) is fixed to the outer periphery of the spoke of the ninth gear (1i), and the clutch inner plate group is fixed to the fourth intermediate shaft (14).

16. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: The clutch assembly further includes a third clutch (23), a fourth clutch (24), and a fifth clutch (25); The first clutch (21), the second clutch (22), the third clutch (23), the fourth clutch (24), and the fifth clutch (25) are all wet clutches.

17. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: It also includes an electronically controlled hydraulic system for controlling the engagement and disengagement of the clutch assembly to achieve automatic control of power shifting, power reversing and power output of the power take-off.

18. The agricultural machinery power shift and power take-off integrated transmission according to claim 1, characterized in that: The gears on the input shaft (11) are designed with a shared spoke structure.

19. The agricultural machinery power shift and power take-off integrated transmission according to any one of claims 1 or 18, characterized in that: The gears on the output shaft (15) are designed with a shared spoke structure.

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