Integrated wet clutch structure and tractor

Abstract

The utility model relates to an integrated wet clutch structure and a tractor, the wet clutch structure comprises a power input shaft, a power input gear and a hydraulic pump, the power input gear is coaxially and fixedly sleeved on the power input shaft and is in transmission connection with a power output assembly; and the power input gear is in transmission connection with the hydraulic pump through the power take-off assembly. The hydraulic transmission device has the advantages of being simple in structure, reasonable in design, capable of structurally solving the problem that the space structure is limited, capable of leveraging force from a wet clutch, providing power for a hydraulic pump, shortening a hydraulic pipeline and better achieving hydraulic transmission, and having great significance for a hydraulic system.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, specifically to an integrated wet clutch structure and a tractor. Background Technology

[0002] With the development of agricultural machinery, its functional diversity has led to an increasing reliance on hydraulic systems, resulting in a corresponding increase in interface requirements. However, existing tractor engines have a limited number of gear pump interfaces, and the space requirements for installing the gear pump are stringent, which cannot meet the operational requirements of the machinery. Typically, the pump is located at the front of the engine, requiring further delivery to the rear. Therefore, to address these issues, a new integrated wet clutch structure has been designed, which is of great significance for hydraulic systems. Utility Model Content

[0003] This utility model provides an integrated wet clutch structure and a tractor, aiming to solve the problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] An integrated wet clutch structure includes a power input shaft, a power input gear, and a hydraulic pump. The power input gear is coaxially fixedly sleeved on the power input shaft and is connected to the power output assembly. The power input gear is also connected to the hydraulic pump via a power take-off assembly.

[0006] The beneficial effects of this utility model are: during operation, one end of the power input shaft is connected to the flywheel end of the engine, the engine drives the power input shaft to rotate, and the power input shaft drives the aforementioned power input gear to rotate;

[0007] On the one hand, the power input gear outputs power through the power output assembly; on the other hand, the power input gear drives the hydraulic pump through the power take-off assembly, making operation convenient.

[0008] This utility model has a simple structure and reasonable design. It solves the problem of limited space in the structure, can borrow force from the wet clutch to provide power to the hydraulic pump, shortens the hydraulic pipeline, and can better realize hydraulic transmission, which is of great significance to the hydraulic system.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the power take-off assembly includes a gear pump idler wheel and a power take-off port driven gear. The gear pump idler wheel is rotatably disposed on one side of the power input gear and meshes with the power input gear. The power take-off port driven gear is coaxially fixedly sleeved on the pump shaft of the hydraulic pump and meshes with the gear pump idler wheel.

[0011] The beneficial effect of adopting the above-mentioned further scheme is that during operation, the power input gear drives the gear pump idler wheel to rotate using the meshing force between the power input gear and the idler wheel of the gear pump. Then, the idler wheel of the gear pump drives the idler wheel of the power take-off to rotate using the meshing force between the idler wheel and the driven gear of the power take-off. The driven gear of the power take-off drives the pump shaft of the hydraulic pump to rotate, thereby realizing the operation of the hydraulic pump, which is convenient.

[0012] Furthermore, the power take-off driven gear is fixedly mounted on the pump shaft of the hydraulic pump via a bearing.

[0013] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the design is reasonable, and the assembly of the passive gear at the force take-off port is convenient.

[0014] Furthermore, the bearing is a deep groove ball bearing.

[0015] The beneficial effects of adopting the above-mentioned further solutions are that deep groove ball bearings can withstand large radial loads, and when they are subjected to large radial loads, they have the performance of angular contact bearings, can withstand certain axial loads, have strong load capacity, and high speed.

[0016] Furthermore, the bearing is fitted onto the pump shaft of the hydraulic pump via a gear pump spline sleeve.

[0017] The advantages of adopting the above-mentioned further solutions are simple structure, reasonable design, and convenient bearing assembly.

[0018] Furthermore, the power output assembly includes a power output gear, which is coaxially sleeved on the power input shaft and can rotate freely around the axis of the power input shaft; the power output gear is located at one end of the power input gear and is connected to the power input gear through a transmission component.

[0019] The beneficial effect of adopting the above-mentioned further solution is that during operation, the engine drives the power input shaft to rotate, and the power input shaft drives the aforementioned power output gear, thereby realizing the output of power.

[0020] Furthermore, the transmission component is a PTO clutch, the friction plate in the PTO clutch is fixedly connected to one end of the power input gear, and the housing in the PTO clutch is fixedly connected to the power output gear.

[0021] The beneficial effect of adopting the above-mentioned further solution is that during operation, hydraulic oil enters the inner cavity from the oil distribution pipe through the oil hole, pushes the PTO clutch piston forward, pushes the clutch friction plate to contact the power input gear, and then the PTO clutch rotates together with the power input gear, and drives the power output gear to rotate, and finally transmits the power to the power output shaft, realizing the transmission of power.

[0022] Furthermore, the friction plate in the PTO clutch is fixedly connected to one end of the power input gear via an external spline.

[0023] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The friction plate in the PTO clutch is fixedly connected to one end of the power input gear through an external spline, which makes assembly convenient.

[0024] Furthermore, the housing in the PTO clutch is connected to the power output gear via a small spline.

[0025] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The housing of the PTO clutch is connected to the power output gear through a small spline, which makes assembly convenient.

[0026] This utility model also relates to a tractor, including the integrated wet clutch structure described above.

[0027] The beneficial effect of adopting the above-mentioned further solutions is that this utility model also provides a tractor with a simple structure and reasonable design. It solves the problem of limited space structure in terms of structure, can borrow power from the wet clutch to provide power to the hydraulic pump, shorten the hydraulic pipeline, and can better realize hydraulic transmission, which is of great significance to the hydraulic system. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Power input shaft; 2. Power input gear; 3. Hydraulic pump; 4. Gear pump idler gear; 5. Power take-off driven gear; 6. Deep groove ball bearing; 7. Gear pump spline sleeve; 8. Power output gear; 9. PTO clutch; 10. Gear pump idler shaft. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Example 1

[0036] like Figure 1 As shown, this embodiment provides an integrated wet clutch structure, including a power input shaft 1, a power input gear 2, and a hydraulic pump 3. The power input gear 2 is coaxially fixedly sleeved on the power input shaft 1 and is connected to the power output assembly for transmission. The power input gear 2 is also connected to the hydraulic pump 3 for transmission through a power take-off assembly.

[0037] During operation, one end of the power input shaft 1 is connected to the flywheel end of the engine, the engine drives the power input shaft 1 to rotate, and the power input shaft 1 drives the aforementioned power input gear 2 to rotate;

[0038] On the one hand, the power input gear 2 outputs power through the power output component; on the other hand, the power input gear 2 drives the hydraulic pump 3 through the power take-off component, making operation convenient.

[0039] Based on the above scheme, the pump shaft of the hydraulic pump 3 is distributed parallel to the power input shaft 1.

[0040] This embodiment has a simple structure and reasonable design. It solves the problem of limited space in terms of structure, can borrow force from the wet clutch to provide power to the hydraulic pump, shortens the hydraulic pipeline, and can better realize hydraulic transmission, which is of great significance to the hydraulic system.

[0041] Example 2

[0042] Based on Embodiment 1, in this embodiment, the power take-off assembly includes a gear pump idler wheel 4 and a power take-off port driven gear 5. The gear pump idler wheel 4 is rotatably disposed on one side of the power input gear 2 and meshes with the power input gear 2. The power take-off port driven gear 5 is coaxially fixedly sleeved on the pump shaft of the hydraulic pump 3 and meshes with the gear pump idler wheel 4.

[0043] During operation, the power input gear 2 uses the meshing force between itself and the gear pump idler gear 4 to drive the gear pump idler gear 4 to rotate. Then, the gear pump idler gear 4 uses the meshing force between itself and the power take-off driven gear 5 to drive the power take-off driven gear 5 to rotate. The power take-off driven gear 5 drives the pump shaft of the hydraulic pump 3 to rotate, thereby realizing the operation of the hydraulic pump 3, which is convenient to operate.

[0044] Preferably, in this embodiment, a gear pump idler shaft 10 is installed next to the power input shaft 1. The gear pump idler shaft 10 is distributed parallel to the power input shaft 1 and can rotate around its own axis. The gear pump idler 4 is coaxially fixedly sleeved on the gear pump idler shaft 10.

[0045] Example 3

[0046] Based on Embodiment 2, in this embodiment, the power take-off passive gear 5 is fixedly mounted on the pump shaft of the hydraulic pump 3 via a bearing.

[0047] The scheme has a simple structure and reasonable design, and the passive gear 5 at the power take-off port is easy to assemble.

[0048] Example 4

[0049] Based on Example 3, in this example, the bearing is a deep groove ball bearing 6.

[0050] Deep groove ball bearings 6 can withstand large radial loads, and when subjected to large radial loads, they exhibit the performance of angular contact bearings. They can also withstand certain axial loads, have strong load capacity, and high speed.

[0051] Example 5

[0052] Based on any one of Embodiments 3 to 4, in this embodiment, the bearing is fitted onto the pump shaft of the hydraulic pump 3 via a gear pump spline sleeve 7.

[0053] The solution has a simple structure, reasonable design, and convenient bearing assembly.

[0054] Example 6

[0055] Based on the above embodiments, in this embodiment, the power output component includes a power output gear 8, which is coaxially sleeved on the power input shaft 1 and can rotate freely around the axis of the power input shaft 1; the power output gear 8 is located at one end of the power input gear 2 and is connected to the power input gear 2 through a transmission component.

[0056] During operation, the engine drives the power input shaft 1 to rotate, and the power input shaft 1 drives the aforementioned power output gear 8, thereby realizing the output of power.

[0057] Example 7

[0058] Based on Embodiment 6, in this embodiment, the transmission component is a PTO clutch 9, the friction plate in the PTO clutch 9 is fixedly connected to one end of the power input gear 2, and the housing in the PTO clutch 9 is fixedly connected to the power output gear 8.

[0059] During operation, hydraulic oil enters the inner cavity through the oil distribution pipe and oil hole, pushing the piston of PTO clutch 9 forward. After the friction plate of the clutch contacts the power input gear 2, PTO clutch 9 rotates together with the power input gear 2, and drives the power output gear 8 to rotate, finally transmitting the power to the power output shaft to realize the transmission of power.

[0060] It should be noted that the PTO clutch 9 mentioned above uses existing technology, and its specific structure and principle will not be described in detail here.

[0061] Example 8

[0062] Based on Embodiment 7, in this embodiment, the friction plate in the PTO clutch 9 is fixedly connected to one end of the power input gear 2 via an external spline.

[0063] The scheme has a simple structure and reasonable design. The friction plate in the PTO clutch 9 is fixedly connected to one end of the power input gear 2 through an external spline, which makes assembly convenient.

[0064] Example 9

[0065] Based on any one of Embodiments 7 to 8, in this embodiment, the housing of the PTO clutch 9 is connected to the power output gear 8 via a small spline.

[0066] The solution has a simple structure and a reasonable design. The housing of the PTO clutch 9 is connected to the power output gear 8 through a small spline, making assembly convenient.

[0067] Example 10

[0068] Based on the above embodiments, this embodiment also provides a tractor, including the integrated wet clutch structure described above.

[0069] This embodiment also provides a tractor with a simple and reasonable structure. It solves the problem of limited space in the structure and can borrow power from the wet clutch to provide power to the hydraulic pump. It shortens the hydraulic pipeline and can better realize hydraulic transmission, which is of great significance to the hydraulic system.

[0070] The working principle of this utility model is as follows:

[0071] During operation, one end of the power input shaft 1 is connected to the flywheel end of the engine, the engine drives the power input shaft 1 to rotate, and the power input shaft 1 drives the aforementioned power input gear 2 to rotate;

[0072] On one hand, hydraulic oil enters the inner cavity from the oil distribution pipe through the oil hole, pushing the piston of PTO clutch 9 forward. After pushing the friction plate of the clutch to contact the power input gear 2, PTO clutch 9 rotates together with the power input gear 2, and drives the power output gear 8 to rotate, and finally transmits the power to the power output shaft to realize the transmission of power.

[0073] On the other hand, the power input gear 2 uses the meshing force between itself and the gear pump idler 4 to drive the gear pump idler 4 to rotate. Then, the gear pump idler 4 uses the meshing force between itself and the power take-off driven gear 5 to drive the power take-off driven gear 5 to rotate. The power take-off driven gear 5 drives the pump shaft of the hydraulic pump 3 to rotate, thereby realizing the operation of the hydraulic pump 3, which is convenient to operate.

[0074] In this invention, the power take-off port and the PTO clutch are relatively independent and do not interfere with each other during operation.

[0075] In addition, this device is located at the rear of the tractor, closer to the implements. Compared to the arrangement of placing the gear pump on the engine block, this structure can effectively shorten the length of the hydraulic lines and compensate for the insufficient number of engine power take-off ports to meet the high hydraulic flow requirements of large composite agricultural implements.

[0076] The clutch structure provided by this utility model has the following advantages:

[0077] 1. Add a gear pump interface to facilitate overall machine layout and save on hydraulic pipelines;

[0078] 2. Enables tractors to be matched with more implements to meet various working conditions.

[0079] It should be noted that all electronic components involved in this utility model adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.

[0080] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0081] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated wet clutch structure, characterized in that: It includes a power input shaft (1), a power input gear (2) and a hydraulic pump (3). The power input gear (2) is coaxially fixedly sleeved on the power input shaft (1) and is connected to the power output assembly. The power input gear (2) is connected to the hydraulic pump (3) through the power take-off assembly.

2. The integrated wet clutch structure according to claim 1, characterized in that: The power take-off assembly includes a gear pump idler wheel (4) and a power take-off port driven gear (5). The gear pump idler wheel (4) is rotatably disposed on one side of the power input gear (2) and meshes with the power input gear (2). The power take-off port driven gear (5) is coaxially fixedly sleeved on the pump shaft of the hydraulic pump (3) and meshes with the gear pump idler wheel (4).

3. The integrated wet clutch structure according to claim 2, characterized in that: The power take-off passive gear (5) is fixedly mounted on the pump shaft of the hydraulic pump (3) via a bearing.

4. The integrated wet clutch structure according to claim 3, characterized in that: The bearing is a deep groove ball bearing (6).

5. The integrated wet clutch structure according to claim 3, characterized in that: The bearing is mounted on the pump shaft of the hydraulic pump (3) via a gear pump spline sleeve (7).

6. The integrated wet clutch structure according to any one of claims 1-5, characterized in that: The power output assembly includes a power output gear (8), which is coaxially sleeved on the power input shaft (1) and can rotate freely around the axis of the power input shaft (1); the power output gear (8) is located at one end of the power input gear (2) and is connected to the power input gear (2) through a transmission component.

7. The integrated wet clutch structure according to claim 6, characterized in that: The transmission component is a PTO clutch (9), the friction plate in the PTO clutch (9) is fixedly connected to one end of the power input gear (2), and the housing in the PTO clutch (9) is fixedly connected to the power output gear (8).

8. The integrated wet clutch structure according to claim 7, characterized in that: The friction plate in the PTO clutch (9) is fixedly connected to one end of the power input gear (2) via an external spline.

9. The integrated wet clutch structure according to claim 7, characterized in that: The housing of the PTO clutch (9) is connected to the power output gear (8) via a small spline.

10. A tractor, characterized in that: Includes the integrated wet clutch structure as described in any one of claims 1-9.

Images