Hub connection transmission device and automobile shaft coupling bench test

Abstract

The utility model provides a hub connection transmission device and an automobile shaft coupling bench test. The hub connection transmission device comprises a supporting shaft, a sliding bearing pedestal, a bottom support, a rolling supporting assembly and a universal transmission shaft. The supporting shaft is rotationally installed on the sliding bearing seat, the sliding bearing seat is installed on the rolling supporting assembly in a sliding mode, the rolling supporting assembly is installed on the bottom support, and the motor is connected with the supporting shaft through the universal transmission shaft. The bearing seat can slide in multiple directions through the rolling supporting assembly, displacement is compensated, and the problem that a traditional bearing seat can only compensate centering in a front-back swinging mode and the problem of displacement and angle caused by an automobile suspension are solved.

Description

Technical Field

[0001] This utility model relates to the field of automobile production equipment, specifically to a wheel hub connection transmission device and an automobile axle coupling test bench. Background Technology

[0002] In automotive axle coupling bench tests, the wheels of the car are removed, and bearing housings are installed at the wheel mounting points (i.e., wheel hubs). These bearing housings replace the wheels in supporting the car. Because the car wheels are not fixed but supported by the car's suspension, which is composed of elastic elements, guiding mechanisms, shock absorbers, etc., the suspension is movable, and therefore the wheel hubs connecting the wheels are also movable. This movement is observed during acceleration and deceleration, as well as during the installation process.

[0003] Traditional connecting devices use pins to fix the bearing housing. The bearing housing can only compensate for the displacement and angle caused by the centering and the car suspension by swinging back and forth. It cannot move in the front, back, left and right directions, and there is no buffer with any degree of freedom of movement. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a hub connection transmission device and an automobile axle coupling test bench.

[0005] According to the present invention, a hub connection transmission device includes: a support shaft, a sliding bearing seat, a bottom bracket, a rolling support assembly, and a universal drive shaft;

[0006] The support shaft is rotatably mounted on the sliding bearing seat, the sliding bearing seat is slidably mounted on the rolling support assembly, the rolling support assembly is mounted on the bottom bracket, and the motor is connected to the support shaft through the universal drive shaft.

[0007] Preferably, the rolling support assembly is provided with a heavy-duty steering ball, and the sliding bearing seat slides relative to the rolling support assembly via the heavy-duty steering ball.

[0008] Preferably, the rolling support assembly is provided with a limiting rubber post, and the sliding bearing seat is buffered by the limiting rubber post in the moving direction.

[0009] Preferably, a bearing is provided on the sliding bearing housing, and the journal of the support shaft is mounted on the bearing.

[0010] Preferably, the inner and outer shafts of the universal drive shaft can achieve circumferential rotation, axial movement, and deflection, and the universal drive shaft can be used to compensate for the displacement caused by the sliding of the sliding bearing seat.

[0011] Preferably, the sliding bearing seat is provided with a pin hole, and the rolling support assembly is provided with a locking pin (8) to cooperate with the pin hole to fix the sliding bearing seat.

[0012] Preferably, the sliding bearing housing is configured as an I-beam shape, and the heavy-duty steering ball of the rolling support assembly passes through the waist of the I-beam shape of the sliding bearing housing, with the upper side plate of the sliding bearing housing sliding relative to the heavy-duty steering ball.

[0013] Preferably, the heavy-duty steering ball is embedded in a cylindrical hole on the rolling support assembly and allows circumferential rotation and vertical sliding relative to the cylindrical hole.

[0014] Preferably, the heavy-duty steering ball is provided with a hemispherical shell, the steering ball is installed inside the hemispherical shell, and a steel ball is disposed between the steering ball and the hemispherical shell;

[0015] A spring for cushioning is provided between the bottom of the hemispherical shell and the bottom of the cylindrical hole on the rolling support assembly.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The bearing housing of this application can slide in multiple directions through the rolling support component to compensate for displacement, which solves the problem that traditional bearing housings can only compensate for centering and displacement and angle caused by automobile suspension by swinging back and forth.

[0018] 2. This application uses heavy-duty steering ball support, which makes the sliding bearing seat slide smoothly horizontally. The heavy-duty steering ball adopts a structure in which multiple sets of balls support the steering ball, which has a strong support capacity.

[0019] 3. This application uses limiting rubber pillars in all directions to limit the sliding bearing seat, ensuring that the sliding displacement of the sliding bearing seat is not too large, while also playing a role in buffering and shock absorption.

[0020] 4. This application uses a ball cage universal drive shaft to connect the support shaft and the motor, so that the displacement of the sliding bearing seat is completely compensated by the universal shaft.

[0021] 5. This application is equipped with a locking pin. When the locking pin is inserted, the sliding bearing seat can no longer slide, which facilitates installation and the entire device can be used as a fixed bearing. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 Exploded view of the hub-connected transmission device;

[0024] Figure 2 A schematic diagram of the overall structure of the hub-connected transmission device;

[0025] As shown in the figure:

[0026] Detailed Implementation

[0027] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0028] like Figure 1-2 As shown, this embodiment includes: a support shaft 1, a sliding bearing seat 2, a bottom bracket 3, a rolling support assembly 4, and a universal drive shaft 5. The support shaft 1 is rotatably mounted on the sliding bearing seat 2. The front flange of the support shaft 1 is connected to the hub of the test piece, and the rear transition part is connected by a spline. The sliding bearing seat 2 is slidably mounted on the rolling support assembly 4. To avoid interference with the heavy-duty steering ball 7, the sliding bearing seat 2 is designed as an I-beam. The heavy-duty steering ball 7 on the rolling support assembly 4 passes through the waist of the I-beam of the sliding bearing seat 2. The upper side plate of the sliding bearing seat 2 slides relative to the heavy-duty steering ball 7. The rolling support assembly 4 is mounted on the bottom bracket 3. The motor is connected to the support shaft 1 through the universal drive shaft 5. The universal drive shaft 5 can still transmit torque normally when deflected at a large angle. A bearing is provided on the sliding bearing seat 2, and the journal of the support shaft 1 is mounted on the bearing.

[0029] A heavy-duty steering ball 7 is provided on the rolling support assembly 4. The heavy-duty steering ball 7 is embedded in the cylindrical hole on the rolling support assembly 4 and can slide up and down in the cylindrical hole. A spring is installed at the bottom of the cylindrical hole. The spring contacts the bottom of the heavy-duty steering ball 7 to achieve buffering in the up and down direction. The sliding bearing seat 2 slides relative to the rolling support assembly 4 through the heavy-duty steering ball 7. The heavy-duty steering ball 7 adopts a structure in which multiple sets of balls support a steel ball.

[0030] A pin hole is provided on the sliding bearing housing 2, and a locking pin 8 is provided on the rolling support assembly 4 to fix the sliding bearing housing 2 in conjunction with the pin hole.

[0031] The universal drive shaft 5 is a known drive shaft containing a ball bearing that can slide. It can freely extend and retract in the length direction and move freely within a range of ±12° in the angular direction during rotation. The universal drive shaft 5 connects the support shaft 1 and the motor, and can transmit torque while also compensating for the displacement caused by the sliding of the sliding bearing 2.

[0032] In one embodiment, the rolling support assembly 4 is provided with limiting rubber posts 6, which can prevent the sliding bearing seat 2 from falling off due to exceeding the sliding stroke, and at the same time play a buffering role. The limiting rubber posts 6 are respectively installed in the horizontal X and Y directions of the sliding bearing seat 2, that is, the forward, backward and left and right movement directions, with 2 in each direction.

[0033] In one embodiment, a universal drive shaft 5 is provided, which can swing 12° and extend and retract 12mm, so that the displacement generated by the movement of the sliding bearing seat 2 will not cause the other end of the universal drive shaft 5 to receive axial and radial forces.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A hub-connected transmission device, characterized in that, include: Support shaft (1), sliding bearing seat (2), bottom bracket (3), rolling support assembly (4), and universal drive shaft (5); The support shaft (1) is rotatably mounted on the sliding bearing seat (2), the sliding bearing seat (2) is slidably mounted on the rolling support assembly (4), the rolling support assembly (4) is mounted on the bottom bracket (3), and the motor is connected to the support shaft (1) through the universal drive shaft (5).

2. The hub-connected transmission device according to claim 1, characterized in that: The rolling support assembly (4) is provided with a heavy-duty steering ball (7), and the sliding bearing seat (2) slides relative to the rolling support assembly (4) through the heavy-duty steering ball (7).

3. The hub connection transmission device according to claim 1, characterized in that: The rolling support assembly (4) is provided with a limiting rubber post (6), and the sliding bearing seat (2) is buffered in the moving direction by the limiting rubber post (6).

4. The hub connection transmission device according to claim 1, characterized in that: The sliding bearing housing (2) is provided with a bearing, and the journal of the support shaft (1) is installed at the bearing.

5. The hub connection transmission device according to claim 3, characterized in that: The limiting rubber post (6) of the rolling support assembly (4) is set in the front-back and left-right directions of the sliding bearing seat (2) in the moving direction.

6. The hub-connected transmission device according to claim 1, characterized in that: The sliding bearing seat (2) is provided with a pin hole, and the rolling support assembly (4) is provided with a locking pin (8) which cooperates with the pin hole to fix the sliding bearing seat (2).

7. The hub connection transmission device according to claim 2, characterized in that: The sliding bearing seat (2) is configured as an I-shape, and the heavy-duty steering ball (7) of the rolling support assembly (4) passes through the waist of the I-shape of the sliding bearing seat (2), and the upper side plate of the sliding bearing seat (2) slides relative to the heavy-duty steering ball (7).

8. The hub-connected transmission device according to claim 2, characterized in that: The heavy-duty steering ball (7) is embedded in the cylindrical hole on the rolling support assembly (4) and allows circumferential rotation and vertical sliding relative to the cylindrical hole.

9. The hub-connected transmission device according to claim 8, characterized in that: The heavy-duty steering ball (7) is provided with a hemispherical shell, a steering ball is installed inside the hemispherical shell, and a steel ball is provided between the steering ball and the hemispherical shell; A spring for cushioning is provided between the bottom of the hemispherical shell and the bottom of the cylindrical hole on the rolling support assembly (4).

10. A vehicle axle coupling bench test, characterized in that: The hub connection transmission device according to any one of claims 1-9 is adopted.

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