Tractor power take-off system and tractor

Abstract

The application relates to the field of tractor technology, in particular to a tractor power output system and a tractor. The tractor power output system comprises a power output motor, a gear transmission mechanism, a gear pump and a PTO output assembly. The PTO output assembly is connected with the power output motor, the gear pump is connected with the power output motor through the gear transmission mechanism, and the power output motor is used for driving the gear pump and the PTO output assembly to work respectively. In the tractor power output system, the power output motor transmits power to the PTO output assembly and the gear pump through different power transmission routes, the power output motor is shared by the PTO output assembly and the gear pump, and thus it is unnecessary to newly add a gear pump power take-off port, space and equipment investment are saved.

Description

Technical Field

[0001] This application relates to the field of tractor technology, and in particular to a tractor power output system and a tractor. Background Technology

[0002] A tractor is a self-propelled power machine used for towing and driving work machinery to complete various mobile tasks. It mainly consists of an engine, transmission system, and running gear. Based on function and structure, it can be divided into various types, including agricultural, industrial, wheeled, and tracked. Currently, with the development of agricultural mechanization, tractors occupy an important position in agriculture, especially small agricultural tractors. These tractors can perform the basic functions of a tractor and occupy a small area, making them increasingly popular. However, existing tractors are equipped with gear pumps, requiring an additional motor to power the gear pump. For small tractors, space constraints often prevent this. Utility Model Content

[0003] The purpose of this application is to provide a tractor power output system and a tractor, which to some extent solves the technical problem in the prior art that the space in small tractors is limited, making it impossible to add another motor to power the gear pump.

[0004] This application provides a tractor power take-off system, including: a power take-off motor, a gear transmission mechanism, a gear pump, and a PTO output assembly; wherein, the PTO output assembly is connected to the power take-off motor, the gear pump is connected to the power take-off motor through the gear transmission mechanism, and the power take-off motor is used to drive the gear pump and the PTO output assembly to work respectively.

[0005] In the above technical solution, the gear transmission mechanism further includes a main gear, an intermediate gear, and a driven gear; wherein the main gear is connected to the output shaft of the power output motor; the intermediate gear meshes with the main gear; the driven gear meshes with the intermediate gear; and the driven gear is connected to the input shaft of the gear pump.

[0006] In any of the above technical solutions, the central shaft of the intermediate gear is further fixed to the outer wall of the power output motor, and the intermediate gear is rotatable relative to the central shaft.

[0007] In any of the above technical solutions, further, along the width direction of the tractor, the gear pump is located on one side of the power output motor.

[0008] In any of the above technical solutions, the power output motor and the PTO output assembly are arranged sequentially along the length of the tractor, and the PTO output assembly is located near the rear end of the tractor.

[0009] In any of the above technical solutions, the PTO output assembly further includes a rear power output shaft and a mid-mounted power output shaft, wherein the rear power output shaft extends along the length direction of the tractor and is disposed toward the rear end of the tractor; the mid-mounted power output shaft extends along the length direction of the tractor and is disposed toward the front end of the tractor.

[0010] In any of the above technical solutions, the tractor power output system further includes an oil baffle assembly, which is disposed in the oil circulation path of the tractor and is located near the oil port of the oil circulation path, and is used to prevent air bubbles generated during the gear oil churning process from entering the oil circulation path through the oil port.

[0011] In any of the above technical solutions, the oil baffle assembly further includes a first baffle, a second baffle, a connecting plate, and a mounting plate; wherein the first baffle and the second baffle are arranged sequentially at intervals along the length direction of the tractor, and the connecting plate is disposed between the two and connected to both respectively, so as to form a shell structure with a hollow interior and an oil port side opening opposite to the oil circulation path.

[0012] Both the first and second baffles have clearance openings on the side of the oil port facing away from the oil circulation path, which are used to avoid the PTO output assembly; the mounting plate is connected to the bottom of the housing and fixed to the rear axle housing of the tractor.

[0013] In any of the above technical solutions, the PTO output assembly is further defined as a wet PTO assembly.

[0014] This application also provides a tractor that includes the tractor power output system described in any of the above technical solutions, and thus has all the beneficial technical effects of the tractor power output system, which will not be repeated here.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] In the tractor power take-off system provided in this application, the power take-off motor transmits power to the PTO output assembly and the gear pump through different power transmission routes, so that the PTO output assembly and the gear pump can share the power of the power take-off motor, thereby eliminating the need to add a power take-off port for the gear pump and saving space and equipment investment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the tractor power take-off system provided in an embodiment of this application;

[0019] Figure 2 This is another structural schematic diagram of the tractor power take-off system provided in an embodiment of this application;

[0020] Figure 3 This is another structural schematic diagram of the tractor power output system provided in the embodiments of this application.

[0021] Figure label:

[0022] 1-Power take-off motor, 2-Gear transmission mechanism, 21-Main gear, 22-Intermediate gear, 221-Central shaft, 23-Driven gear, 3-Gear pump, 4-PTO output assembly, 41-Rear power take-off shaft, 42-Mid-mounted power take-off shaft, 5-Fuel baffle assembly, 51-First baffle, 52-Second baffle, 53-Connecting plate, 54-Mounting plate, a-Wide direction of the tractor, b-Length direction of the tractor. Detailed Implementation

[0023] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0024] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0025] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] The following reference Figures 1 to 3 This application describes a tractor power take-off system and a tractor according to some embodiments thereof.

[0029] Example 1

[0030] See Figures 1 to 3 As shown, an embodiment of this application provides a tractor power output system, including: a power output motor 1, a gear transmission mechanism 2, a gear pump 3, and a PTO output assembly 4; wherein, the PTO output assembly 4 is connected to the power output motor 1, the gear pump 3 is connected to the power output motor 1 through the gear transmission mechanism 2, and the power output motor 1 is used to drive the gear pump 3 and the PTO output assembly 4 to work respectively.

[0031] As can be seen from the structure described above, the power output motor 1 transmits power to the PTO output assembly 4 and the gear pump 3 through different power transmission routes, so that the PTO output assembly 4 and the gear pump 3 can share the power of the power output motor 1, thereby eliminating the need to add a power take-off port to the gear pump 3, saving space and equipment investment.

[0032] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the gear transmission mechanism 2 includes a main gear 21, an intermediate gear 22, and a driven gear 23; wherein, the main gear 21 is connected to the output shaft of the power output motor 1; the intermediate gear 22 meshes with the main gear 21; the driven gear 23 meshes with the intermediate gear 22; and the driven gear 23 is connected to the input shaft of the gear pump 3.

[0033] As can be seen from the structure described above, the power output motor 1 drives the main gear 21 to rotate, the main gear 21 drives the intermediate gear 22 to rotate, and the intermediate gear 22 drives the driven gear 23 to rotate. In other words, the intermediate gear 22 transmits power to the driven gear 23, and the driven gear 23 ultimately drives the gear pump 3 to work.

[0034] It should be noted that gear transmission mechanism 2 is not limited to this and can be selected according to actual needs.

[0035] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the central shaft 221 of the intermediate gear 22 is fixed to the outer wall of the power output motor 1, and the intermediate gear 22 can rotate relative to the central shaft 221.

[0036] As can be seen from the structure described above, the central shaft 221 of the intermediate gear 22 is fixed on the outer wall of the power output motor 1, and the power output motor 1 plays the role of supporting the intermediate gear 22. There is no need to install a separate bracket, which saves space and investment in parts and helps to reduce costs.

[0037] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, along the width direction a of the tractor, the gear pump 3 is located on one side of the power output motor 1. That is, the power output motor 1 and the gear pump 3 are arranged sequentially along the width direction a of the tractor.

[0038] As can be seen from the structure described above, placing the gear pump 3 close to one side of the power output motor 1 reduces the space occupied and the distance between them. This, in turn, reduces the number of gears in the gear transmission mechanism 2, decreases equipment investment, lowers costs, and also contributes to miniaturization due to its small footprint. Of course, the placement of the gear pump 3 on the power output motor 1 is not limited to this and can be selected according to actual needs.

[0039] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the power output motor 1 and the PTO output assembly 4 are arranged sequentially along the length direction b of the tractor, and the PTO output assembly 4 is located near the rear end of the tractor.

[0040] As described above, by sequentially arranging the power output motor 1 and the PTO output assembly 4 along the tractor's length direction b, the space along the tractor's length direction b can be fully utilized, providing greater operating space in the width direction of the entire machine. This allows for the subsequent integration with a centrally mounted lawnmower without affecting the operation of lawnmowers on either side, thus solving the problem of limited overall machine width in existing technologies. Of course, the arrangement of the power output motor 1 and the PTO output assembly 4 is not limited to this and can be selected according to actual needs.

[0041] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the PTO output assembly 4 includes a rear power take-off shaft 41 and a mid-mounted power take-off shaft 42. The rear power take-off shaft 41 extends along the length direction b of the tractor and is positioned toward the rear end of the tractor; the mid-mounted power take-off shaft 42 extends along the length direction b of the tractor and is positioned toward the front end of the tractor.

[0042] As can be seen from the structure described above, the rear power output shaft 41 serves as the rear power output, providing power to the rear-mounted implement, while the mid-mounted power output shaft 42 serves as the mid-mounted power output, providing power to the mid-mounted implement. Therefore, the mid-mounted or rear-mounted implement can be selected according to actual needs, making it more widely applicable.

[0043] Of course, it is not limited to the above. The PTO output assembly 4 may include only the rear power output shaft 41 or only the middle power output shaft 42, depending on the actual needs. In addition, the PTO output assembly 4 also includes a bracket, a main input shaft, and a transmission gear assembly. The main input shaft, the rear power output shaft 41, the middle power output shaft 42, and the transmission gear assembly are all integrated on the bracket and can rotate relative to the bracket. The rear power output shaft 41 is connected to the main input shaft, and the middle power output shaft 42 can be connected to the main input shaft through the transmission gear assembly. Of course, it is not limited to this and can be designed according to actual needs.

[0044] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the tractor power output system also includes an oil baffle assembly 5, which is disposed in the oil circulation path of the tractor and is located near the oil port of the oil circulation path. It is used to prevent air bubbles generated during the gear oil churning process from entering the oil circulation path through the oil port.

[0045] As can be seen from the structure described above, an oil baffle assembly 5 is installed near the oil port to prevent air bubbles generated when the gears are stirring the oil from entering the oil circulation path through the oil port, thereby causing abnormal noises in the oil circulation path.

[0046] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the oil baffle assembly 5 includes a first baffle 51, a second baffle 52, a connecting plate 53, and a mounting plate 54; wherein, the first baffle 51 and the second baffle 52 are arranged sequentially at intervals along the length direction b of the tractor, and the connecting plate 53 is arranged between the two and connected to both of them to form a shell structure with a hollow interior and an oil port side opening that is away from the oil circulation path.

[0047] Both the first baffle plate 51 and the second baffle plate 52 have clearance openings on the side of the oil port that is away from the oil circulation path, and these openings are used to clear the PTO output assembly 4. The mounting plate 54 is connected to the bottom of the housing and is fixed to the rear axle housing of the tractor.

[0048] As can be seen from the structure described above, the first baffle plate 51, the second baffle plate 52, and the connecting plate 53 form a shell structure facing away from the oil port opening. Thus, before the oil enters the oil port, it first enters the shell structure. The shell structure blocks air bubbles inside, thus preventing them from entering the oil port. This effectively prevents air bubbles from entering the oil circulation path through the oil port and causing abnormal noise. The connecting plate 53 connects the first baffle plate 51 and the second baffle plate 52 together, which increases the strength, makes it less prone to damage, and has a long service life. The mounting plate 54 serves to fix the baffle plates to the rear axle housing of the tractor. Further, preferably, the mounting plate 54 is attached to the rear axle housing and can be connected by bolts or welding.

[0049] In this embodiment, preferably, the PTO output assembly 4 is a wet PTO assembly.

[0050] As described above, the wet PTO assembly ensures that power output performance is not affected when supplying power to the drive pump. Of course, the types of PTO output assemblies are not limited to this; other types can be selected according to actual needs.

[0051] Example 2

[0052] Embodiment 2 of this application also provides a tractor, which includes the tractor power output system described in Embodiment 1 above. Therefore, it has all the beneficial technical effects of the tractor power output system. The same technical features and beneficial effects will not be repeated here.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tractor power take-off system, characterized in that, include: The device includes a power output motor, a gear transmission mechanism, a gear pump, and a PTO output assembly; wherein the PTO output assembly is connected to the power output motor, the gear pump is connected to the power output motor through the gear transmission mechanism, and the power output motor is used to drive the gear pump and the PTO output assembly to work respectively.

2. The tractor power take-off system according to claim 1, characterized in that, The gear transmission mechanism includes a main gear, an intermediate gear, and a driven gear; wherein, the main gear is connected to the output shaft of the power output motor; the intermediate gear meshes with the main gear; the driven gear meshes with the intermediate gear; and the driven gear is connected to the input shaft of the gear pump.

3. The tractor power take-off system according to claim 2, characterized in that, The central shaft of the intermediate gear is fixed to the outer wall of the power output motor, and the intermediate gear can rotate relative to the central shaft.

4. The tractor power take-off system according to claim 1, characterized in that, Along the width direction of the tractor, the gear pump is located on one side of the power output motor.

5. The tractor power take-off system according to claim 1, characterized in that, The power output motor and the PTO output assembly are arranged sequentially along the length of the tractor, with the PTO output assembly located near the rear end of the tractor.

6. The tractor power take-off system according to claim 1, characterized in that, The PTO output assembly includes a rear power take-off shaft and a mid-mounted power take-off shaft, wherein the rear power take-off shaft extends along the length of the tractor and is positioned toward the rear end of the tractor; and the mid-mounted power take-off shaft extends along the length of the tractor and is positioned toward the front end of the tractor.

7. The tractor power take-off system according to claim 1, characterized in that, The tractor power output system also includes an oil baffle assembly, which is disposed in the oil circulation path of the tractor and is located near the oil port of the oil circulation path, and is used to prevent air bubbles generated during the gear oil churning process from entering the oil circulation path through the oil port.

8. The tractor power take-off system according to claim 7, characterized in that, The oil baffle assembly includes a first baffle, a second baffle, a connecting plate, and a mounting plate; wherein the first baffle and the second baffle are arranged sequentially at intervals along the length of the tractor, and the connecting plate is disposed between the two and connected to both, so as to form a shell structure with a hollow interior and an oil port side opening opposite to the oil circulation path. Both the first and second baffles have clearance openings on the side of the oil port facing away from the oil circulation path, which are used to avoid the PTO output assembly; the mounting plate is connected to the bottom of the housing and fixed to the rear axle housing of the tractor.

9. The tractor power take-off system according to any one of claims 1 to 8, characterized in that, The PTO output assembly is a wet PTO assembly.

10. A tractor, characterized in that, The tractor power output system includes any one of claims 1 to 9.

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