Electric drive gearbox assembly of tractor

Abstract

The utility model discloses a tractor electric drive gearbox assembly which comprises an assembly shell, a rear axle flange and a front axle flange are arranged on the front side and the rear side of the lower portion of the outer side of the assembly shell respectively, and a gear shifting motor and a drive motor are arranged on the left side and the right side of the upper portion of the assembly shell respectively. An input shaft, a gear shifting gear and a rear axle output shaft are arranged in the assembly shell, the driving motor is connected with the input shaft, the gear shifting motor is connected with the gear shifting gear, the rear axle output shaft is connected with the rear axle flange, and the input shaft is in gear transmission connection with the rear axle output shaft through the gear shifting gear. According to the gearbox assembly structure, the integrated structural design is adopted, the structure is more compact, the service life of the gearbox assembly structure is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, specifically to an electric drive gearbox assembly for a tractor. Background Technology

[0002] Tractors, as important agricultural machinery, perform diverse and complex tasks in harsh and variable operating environments. Traditional tractor power systems suffer from inconsistent engine operating points, failing to fully utilize engine power and resulting in significant energy waste and emissions. In recent years, with the continuous promotion of new energy technologies, hybrid electric power systems and pure electric power systems have been introduced for tractors. These systems increase motor utilization, improve energy efficiency, and correspondingly reduce emissions, representing an effective method for achieving energy conservation and environmental protection in tractors. However, existing electric drive transmission power systems for new energy tractors are mostly discretely arranged, exhibiting low integration and a non-compact structure. Furthermore, the complexity of tasks and harsh operating environments make these systems more susceptible to damage, increasing maintenance costs.

[0003] The information disclosed in the above background section is only intended to enhance the understanding of the overall background of this utility model, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] To address the aforementioned shortcomings, the present invention aims to provide a tractor electric drive gearbox assembly that adopts an integrated structural design, resulting in a more compact structure, improved service life of the gearbox assembly, and reduced maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tractor electric drive gearbox assembly includes an assembly housing. A rear axle flange and a front axle flange are respectively provided on the lower front and rear sides of the outer side of the assembly housing. A shift motor and a drive motor are respectively provided on the upper left and right sides of the assembly housing. An input shaft, a shift gear, and a rear axle output shaft are provided inside the assembly housing. The drive motor is connected to the input shaft, the shift motor is connected to the shift gear, and the rear axle output shaft is connected to the rear axle flange. The input shaft is connected to the rear axle output shaft gear drive through the shift gear.

[0007] Furthermore, it also includes a four-wheel drive clutch and a front axle output shaft housed within the assembly housing, and a control valve assembly housed outside the assembly housing. The control valve assembly is connected to one end of the four-wheel drive clutch via a hydraulic circuit, and the other end of the four-wheel drive clutch is connected to the front axle output shaft. The front axle output shaft is gear-driven to the rear axle output shaft, and the front axle output shaft is connected to the front axle flange.

[0008] Furthermore, it also includes a power take-off shaft, which is disposed on the upper part of the assembly housing between the shift motor and the drive motor.

[0009] Furthermore, the shift motor includes a first shift motor and a second shift motor, the shift gear includes a first shift gear and a second shift gear, the input shaft gear drives the first shift gear, the first shift gear drives the second shift gear, and the end of the second shift gear is connected to the rear axle output shaft.

[0010] Furthermore, it also includes a brake, which is mounted on the front axle flange.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model tractor electric drive gearbox assembly adopts an integrated structural design, integrating the front axle flange, rear axle flange, shift motor, drive motor, input shaft, output shaft, and transmission gears onto the assembly housing. This makes the structure more compact, facilitating disassembly and maintenance, and reducing the risk of damage to the assembly structure during operation in complex environments. This improves the service life of the gearbox assembly structure and reduces maintenance costs. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the external side of the tractor electric drive gearbox assembly of this utility model;

[0014] Figure 2 This is a structural diagram of the other side of the tractor electric drive gearbox assembly of this utility model;

[0015] Figure 3 This is a structural diagram of the tractor electric drive gearbox assembly of this utility model;

[0016] Figure 4 This is a schematic diagram illustrating the application of the electric drive gearbox assembly for tractors according to this utility model;

[0017] In the diagram, 1-Assembly housing; 2-Rear axle flange; 3-Front axle flange; 5-Drive motor; 6-Input shaft; 8-Rear axle output shaft; 9-Front axle output shaft; 10-Four-wheel drive clutch; 11-Control valve group; 12-Hydraulic circuit; 13-Power take-off shaft; 401-First shift motor; 402-Second shift motor; 701-First shift gear; 702-Second shift gear; 14-Brake. Detailed Implementation

[0018] To explain the technical content, objectives, and effects of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings. In the description of these embodiments, it should be understood that terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing these embodiments and simplifying the description. They do not indicate or imply that the device or component 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.

[0019] like Figure 1-4 As shown, a tractor electric drive gearbox assembly includes an assembly housing 1. A rear axle flange 2 and a front axle flange 3 are respectively provided on the lower front and rear sides of the outer side of the assembly housing 1. A shift motor and a drive motor 5 are respectively provided on the upper left and right sides of the assembly housing 1. An input shaft 6, a shift gear, and a rear axle output shaft 8 are provided inside the assembly housing 1. The drive motor 5 is connected to the input shaft 6, the shift motor is connected to the shift gear, and the rear axle output shaft 8 is connected to the rear axle flange 2. The input shaft 6 is connected to the rear axle output shaft 8 through a gear transmission via the shift gear.

[0020] In this embodiment, the tractor electric drive gearbox assembly drives the input shaft 6 to rotate via the drive motor 5, the input shaft 6 drives the shift gear to rotate, and the shift gear finally drives the rear axle output shaft 8 to rotate, thereby driving the tractor's rear-wheel drive.

[0021] This utility model adopts an integrated structural design, integrating the front axle flange 3, rear axle flange 2, shift motor, drive motor 5, input shaft 6, output shaft and transmission gears on the assembly housing 1, making its structure more compact. This facilitates disassembly and maintenance, and makes it less likely to be damaged in complex environments, thereby improving the service life of the gearbox assembly and reducing maintenance costs.

[0022] As a preferred embodiment of the above implementation, such as Figure 1-3 It also includes a four-wheel drive clutch 10 and a front axle output shaft 9 disposed in the assembly housing 1, and a control valve group 11 disposed outside the assembly housing. The control valve group 11 is connected to one end of the four-wheel drive clutch 10 through a hydraulic oil circuit 12, and the other end of the four-wheel drive clutch 10 is connected to the front axle output shaft 9. The front axle output shaft 9 is gear-driven connected to the rear axle output shaft 8, and the front axle output shaft 9 is connected to the front axle flange 3.

[0023] In this embodiment, the control valve group 11 controls the opening and closing of the four-wheel drive clutch 10, thereby driving the front axle output shaft 9 to selectively connect with the rear axle output shaft 8 via gear transmission, thus enabling the tractor to switch from a single rear axle drive mode to a four-wheel drive mode where both the front and rear axles are driven together.

[0024] As a preferred embodiment of the above implementation, such as Figure 1-3It also includes a power take-off shaft 13, which is disposed on the upper part of the assembly housing 1 between the shift motor and the drive motor 5.

[0025] As a preferred embodiment of the above implementation, such as Figure 1-3 The shift motor includes a first shift motor 401 and a second shift motor 402, and the shift gear includes a first shift gear 701 and a second shift gear 702. The input shaft 6 drives the first shift gear 701, and the first shift gear 701 drives the second shift gear 702. The end of the second shift gear 702 is connected to the rear axle output shaft 8.

[0026] In this embodiment, by increasing the number of shift motors and shift gears, the multi-gear adjustable power output mode of the tractor electric drive gearbox assembly is increased.

[0027] As a preferred embodiment of the above implementation, such as Figure 1-3 It also includes a brake 14, which is mounted on the front axle flange 3. The brake 14 is used to brake the tractor.

[0028] Although the present invention has been described in detail above with specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A tractor electric drive gearbox assembly, characterized in that: The assembly includes an assembly housing. A rear axle flange and a front axle flange are respectively provided on the lower front and rear sides of the outer side of the assembly housing. A shift motor and a drive motor are respectively provided on the upper left and right sides of the assembly housing. An input shaft, a shift gear, and a rear axle output shaft are provided inside the assembly housing. The drive motor is connected to the input shaft, the shift motor is connected to the shift gear, and the rear axle output shaft is connected to the rear axle flange. The input shaft is connected to the rear axle output shaft gear drive through the shift gear.

2. The tractor electric drive gearbox assembly according to claim 1, characterized in that: It also includes a four-wheel drive clutch and a front axle output shaft housed in the assembly housing, and a control valve group housed outside the assembly housing. The control valve group is connected to one end of the four-wheel drive clutch via a hydraulic circuit, and the other end of the four-wheel drive clutch is connected to the front axle output shaft. The front axle output shaft is gear-driven to the rear axle output shaft, and the front axle output shaft is connected to the front axle flange.

3. The tractor electric drive gearbox assembly according to claim 1, characterized in that: It also includes a power take-off shaft, which is disposed on the upper part of the assembly housing between the shift motor and the drive motor.

4. The tractor electric drive gearbox assembly according to claim 1, characterized in that: The shift motor includes a first shift motor and a second shift motor, and the shift gear includes a first shift gear and a second shift gear. The input shaft is connected to the first shift gear via gear transmission, the first shift gear drives the second shift gear, and the end of the second shift gear is connected to the rear axle output shaft.

5. The tractor electric drive gearbox assembly according to claim 1, characterized in that: It also includes a brake, which is mounted on the front axle flange.

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