CN219455465U

CN219455465U - Bearing test board for hub motor of electric vehicle

Info

Publication number: CN219455465U
Application number: CN202320542464.XU
Authority: CN
Inventors: 徐东
Original assignee: Suzhou Xingzhi Power Technology Co ltd
Current assignee: Suzhou Xingzhi Power Technology Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-01
Anticipated expiration: 2033-03-20

Abstract

The utility model is suitable for the technical field of motor bearing test, and provides an electric vehicle hub motor bearing test table which comprises a test frame, a hub motor clamped on the test frame and a bearing plate rotatably arranged on the test frame, wherein a damping plate is arranged on the surface of the bearing plate; an arc-shaped toothed ring is arranged on the side surface of the bearing plate; the surface of the supporting plate is fixedly connected with a fixed frame; a rotating shaft is arranged between the inner walls of the fixed frames in a penetrating and rotating way; a gear ring is arranged on the shaft side of the rotating shaft; the gear ring is meshed and matched with the arc-shaped gear ring; positioning holes are symmetrically formed in the peripheral side face of the rotating shaft and located on two sides of the gear ring; baffle rods symmetrically penetrate through the surface of the fixed frame in a sliding manner; the baffle rod is in plug-in fit with the positioning hole. The device drives the wheel hub motor fixed in the U-shaped motor frame to descend through the driving cylinder so as to adjust the pressure between the wheel hub shell and the damping plate, so that the wheel hub motor can be abutted against the damping plate, the damping plate and the wheel hub shell are contacted to generate friction resistance, and the actual running condition of the wheel hub motor when bearing load can be simulated.

Description

Bearing test board for hub motor of electric vehicle

Technical Field

The utility model relates to the technical field of motor bearing tests, in particular to a motor bearing test board for an electric vehicle hub motor.

Background

The service life test tool of the hub motor of the electric vehicle simulates different load working conditions through locking disc brake, the disc brake is located on one side of the hub motor, the balance of the hub motor is reduced when the hub motor is locked on one side, the load condition of the hub motor is inconsistent with the actual running working condition, and the test accuracy is affected.

Through retrieving, the testing arrangement and the production line of a wheel hub motor of publication number CN216622615U, wherein testing arrangement includes actuating mechanism, motor support and damping wheel, fix a position the wheel hub motor of test through the motor support, through actuating mechanism drive motor support in order to adjust the pressure between wheel hub motor and the damping wheel during the test, the motor support can keep wheel hub motor balanced, make wheel hub motor can with damping wheel looks butt, damping wheel and wheel hub motor contact produce frictional resistance, can simulate the actual running condition when wheel hub motor bears the load, thereby can test wheel hub motor whether satisfy the operation requirement more accurately.

However, the testing device of the hub motor cannot meet the actual running condition of the electric vehicle when the hub motor bears the load in the climbing or descending process, so that the testing data is not comprehensive enough.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the bearing test board for the hub motor of the electric vehicle, which is characterized in that the hub motor fixedly installed in the U-shaped motor frame is driven to descend by the driving cylinder so as to adjust the pressure between the hub shell and the damping plate, the hub motor can be abutted against the damping plate, the damping plate is contacted with the hub shell to generate friction resistance, and the actual running working condition of the hub motor when bearing load can be simulated.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the bearing test board comprises a test frame and a hub motor clamped on the test frame; further comprises: the bearing plate is rotatably arranged on the test frame, and a damping plate is arranged on the surface of the bearing plate; an arc-shaped toothed ring is arranged on the side face of the bearing plate; the test rack comprises: a test board and a support board fixedly mounted on the test board; the surface of the supporting plate is fixedly connected with a fixing frame; a rotating shaft is arranged between the inner walls of the fixed frames in a penetrating and rotating way; a gear ring is arranged on the shaft side of the rotating shaft; the gear ring is meshed and matched with the arc-shaped toothed ring; positioning holes are symmetrically formed in the peripheral side face of the rotating shaft and located on two sides of the gear ring; baffle rods symmetrically penetrate through the surface of the fixed frame and are arranged in a sliding manner; the baffle rod is in plug-in fit with the positioning hole.

The utility model is further provided with: the surface of the test bench is fixedly connected with an L-shaped plate; the side surfaces of the L-shaped plates are symmetrically and fixedly connected with fixing plates; a connecting shaft is fixedly connected between the two fixing plates; the side surface of the bearing plate is provided with a shaft hole; the connecting shaft is in rotary fit with the shaft hole.

The utility model is further provided with: a driving cylinder is fixedly arranged at the inner top of the test bench; the telescopic end of the driving cylinder is connected with a U-shaped motor frame; the two sides of the inner wall of the U-shaped motor frame symmetrically penetrate through and are in sliding fit with fixed pipes; one end of the fixed pipe is fixedly connected with a stop block; the stop block is fixedly arranged on the side face of the U-shaped motor frame through a fastening bolt.

The utility model is further provided with: the in-wheel motor includes: a stepped center shaft and a hub shell rotatably arranged on the stepped center shaft; the hub shell is internally provided with a stator, a rotor, a speed reducing mechanism and a drum brake structure; clamping grooves are formed in two ends of the stepped center shaft; the inner wall of the fixed pipe is provided with clamping blocks matched with the clamping grooves; the clamping block is matched with the clamping groove in a clamping way.

The utility model is further provided with: one end of the rotating shaft is fixedly connected with a Z-shaped handle; threaded sleeves are symmetrically and fixedly connected to the bottoms of the fixed frames; the peripheral side surface of the baffle rod is provided with external threads close to the bottom; the external thread is in threaded fit with the threaded sleeve.

The utility model has the advantages that:

1. according to the utility model, the clamping grooves at the two ends of the stepped center shaft are clamped into the clamping blocks in the two fixing pipes, and the fixing pipes are fixed on the side surface of the U-shaped motor frame through the fastening bolts, so that the hub motor is fixed, the operation is simple, the two ends of the stepped center shaft of the hub motor are positioned, and the stability of the hub motor is improved.

2. In the test of the utility model, the Z-shaped handle is rotated to drive the gear ring on the rotating shaft to synchronously rotate, so that the arc-shaped gear ring and the bearing plate are driven to rotate together, the bearing plate presents a certain inclination angle, the gear rod is inserted into the corresponding positioning hole to prevent the rotating shaft from rotating, and the positive and negative rotation of the hub motor is realized through the drum brake structure, so that the actual running condition of the hub motor when bearing a load in the climbing or descending process is simulated, and the comprehensiveness of test data is improved.

3. According to the utility model, the wheel hub motor fixedly installed in the U-shaped motor frame is driven to descend by the driving cylinder, so that the pressure between the wheel hub shell and the damping plate is adjusted, the wheel hub motor can be abutted against the damping plate, the damping plate is contacted with the wheel hub shell to generate friction resistance, and the actual running condition of the wheel hub motor when bearing a load can be simulated, so that whether the wheel hub motor meets the use requirement can be tested more accurately.

Drawings

FIG. 1 is a schematic diagram of a motor-driven hub motor bearing test stand according to the present utility model;

FIG. 2 is a schematic view of the structure of the test rack of the present utility model;

fig. 3 is a schematic structural view of the hub motor of the present utility model;

FIG. 4 is a schematic view of the structure of the bearing plate of the present utility model;

in the figure: 1. a test rack; 2. a hub motor; 3. a pressure bearing plate; 4. a damping plate; 5. an arc-shaped toothed ring; 6. a test bench; 7. a support plate; 8. a fixed frame; 9. a rotating shaft; 10. a gear ring; 11. positioning holes; 12. a gear lever; 13. an L-shaped plate; 14. a fixing plate; 15. a connecting shaft; 16. a shaft hole; 17. a driving cylinder; 18. a U-shaped motor frame; 19. a fixed tube; 20. a stop block; 21. a stepped center shaft; 22. a hub shell; 23. a clamping groove; 24. a clamping block; 25. a Z-shaped handle; 26. a threaded sleeve.

Detailed Description

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Example 1

Referring to fig. 1-4, the first embodiment provides the following technical solutions:

the electric vehicle hub motor bearing test board comprises a test frame 1, a hub motor 2 clamped on the test frame 1 and a bearing plate 3 rotatably arranged on the test frame 1; the surface of the bearing plate 3 is provided with a damping plate 4; an arc-shaped toothed ring 5 is arranged on the side surface of the bearing plate 3; the test rack 1 includes: a test bench 6 and a support plate 7 fixedly installed on the test bench 6; the surface of the supporting plate 7 is fixedly connected with a fixed frame 8; a rotating shaft 9 is arranged between the inner walls of the fixed frames 8 in a penetrating and rotating way; a gear ring 10 is arranged on the shaft side of the rotating shaft 9; the gear ring 10 is meshed with the arc-shaped gear ring 5; positioning holes 11 are symmetrically formed in the two sides of the gear ring 10 on the side face of the periphery of the rotating shaft 9; the surface of the fixed frame 8 symmetrically penetrates through and slides to be provided with a baffle rod 12; the baffle rod 12 is in plug-in fit with the positioning hole 11.

The specific implementation manner of the first embodiment is as follows:

during testing, the Z-shaped handle 25 is rotated to drive the gear ring 10 on the rotating shaft 9 to synchronously rotate, so that the arc-shaped gear ring 5 is driven to rotate together with the bearing plate 3, the bearing plate 3 presents a certain inclination angle, the rotating shaft 9 is prevented from rotating by inserting the gear rod 12 into the corresponding positioning hole 11, and the positive and negative rotation of the hub motor 2 is realized through the drum brake structure, so that the actual running condition of the hub motor 2 when bearing load in the climbing or descending process is simulated.

Example two

Referring to fig. 2 and fig. 4, the second embodiment provides the following technical solutions on the premise of the first embodiment: the surface of the test bench 6 is fixedly connected with an L-shaped plate 13; the side surfaces of the L-shaped plates 13 are symmetrically and fixedly connected with fixing plates 14; a connecting shaft 15 is fixedly connected between the two fixing plates 14; the side surface of the bearing plate 3 is provided with a shaft hole 16; the connecting shaft 15 is in rotary fit with the shaft hole 16.

The specific implementation manner of the second embodiment is as follows:

through the running fit of the connecting shaft 15 and the shaft hole 16, the bearing plate 3 of Shaanxi love you rotates around the connecting shaft 15 to simulate the bearing test of the hub motor 2 under the working conditions of different gradients.

Example III

Referring to fig. 2 and 3, the third embodiment provides the following technical solutions on the premise of the first embodiment: a driving cylinder 17 is fixedly arranged at the inner top of the test bench 6; the telescopic end of the driving cylinder 17 is connected with a U-shaped motor frame 18; the two sides of the inner wall of the U-shaped motor frame 18 symmetrically penetrate through and are in sliding fit with a fixed pipe 19; one end of the fixed pipe 19 is fixedly connected with a stop block 20; the stop block 20 is fixedly arranged on the side surface of the U-shaped motor frame 18 through a fastening bolt; the in-wheel motor 2 includes: a stepped bottom bracket 21 and a hub shell 22 rotatably provided on the stepped bottom bracket 21; the hub shell 22 is internally provided with a stator, a rotor, a speed reducing mechanism and a drum brake structure; clamping grooves 23 are formed at two ends of the stepped center shaft 21; the inner wall of the fixed pipe 19 is provided with a clamping block 24 which is matched with the clamping groove 23; the clamping block 24 is matched with the clamping groove 23 in a clamping way.

The third embodiment of the present utility model is as follows:

the hub motor 2 is placed between the inner walls of the U-shaped motor frame 18, two fixing pipes 19 are respectively slid inwards, so that clamping blocks 24 in the fixing pipes 19 are matched with clamping grooves 23 at the end parts of the stepped center shafts 21 in a clamping manner, and then the stop blocks 20 of the fixing pipes 19 are fixedly arranged on the side surfaces of the U-shaped motor frame 18 through fastening bolts, so that the hub motor 2 is stably fixed; the wheel hub motor 2 fixedly installed in the U-shaped motor frame 18 is driven to descend by the driving cylinder 17 so as to adjust the pressure between the wheel hub shell 22 and the damping plate 4, so that the wheel hub motor 2 can be abutted against the damping plate 4, friction resistance is generated when the damping plate 4 is contacted with the wheel hub shell 22, and the actual running condition of the wheel hub motor 2 when bearing a load can be simulated.

Example IV

Referring to fig. 2, the fourth embodiment provides the following technical solutions on the premise of the first embodiment: one end of the rotating shaft 9 is fixedly connected with a Z-shaped handle 25; the inner bottom of the fixed frame 8 is symmetrically and fixedly connected with a threaded sleeve 26; the side surface of the circumference of the baffle rod 12 is provided with external threads close to the bottom; the external threads are in threaded rotational engagement with the threaded sleeve 26.

The specific implementation manner of the fourth embodiment is as follows: the external thread on the gear lever 12 is in running fit with the thread of the threaded sleeve 26, so that the gear lever 12 is screwed in the threaded sleeve 26, and the connection stability of the gear lever 12 is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The bearing test board for the hub motor of the electric vehicle comprises a test frame (1) and a hub motor (2) clamped on the test frame (1); the method is characterized in that:

further comprises:

the test device comprises a test rack (1), a bearing plate (3) rotatably arranged on the test rack (1), and a damping plate (4) arranged on the surface of the bearing plate (3); an arc-shaped toothed ring (5) is arranged on the side face of the bearing plate (3);

the test rack (1) comprises: a test table (6) and a support plate (7) fixedly mounted on the test table (6); the surface of the supporting plate (7) is fixedly connected with a fixed frame (8); a rotating shaft (9) is arranged between the inner walls of the fixed frames (8) in a penetrating and rotating way; a gear ring (10) is arranged on the shaft side of the rotating shaft (9); the gear ring (10) is meshed and matched with the arc-shaped toothed ring (5);

positioning holes (11) are symmetrically formed in the two sides of the gear ring (10) on the peripheral side surface of the rotating shaft (9); a baffle rod (12) is symmetrically arranged on the surface of the fixed frame (8) in a penetrating and sliding way; the baffle rod (12) is in plug-in fit with the positioning hole (11).

2. The electric vehicle hub motor load bearing test stand of claim 1, wherein: the surface of the test bench (6) is fixedly connected with an L-shaped plate (13); the side surfaces of the L-shaped plates (13) are symmetrically and fixedly connected with fixing plates (14); a connecting shaft (15) is fixedly connected between the two fixing plates (14); the side surface of the bearing plate (3) is provided with a shaft hole (16); the connecting shaft (15) is in rotary fit with the shaft hole (16).

3. The electric vehicle hub motor load bearing test stand of claim 1, wherein: a driving cylinder (17) is fixedly arranged at the inner top of the test bench (6); the telescopic end of the driving cylinder (17) is fixedly connected with a U-shaped motor frame (18); both sides of the inner wall of the U-shaped motor frame (18) symmetrically penetrate through and are in sliding fit with fixed pipes (19); one end of the fixed pipe (19) is fixedly connected with a stop block (20); the stop block (20) is fixedly arranged on the side face of the U-shaped motor frame (18) through a fastening bolt.

4. A motor vehicle hub motor load test stand as claimed in claim 3 wherein: the in-wheel motor (2) includes:

a stepped center shaft (21) and a hub shell (22) rotatably arranged on the stepped center shaft (21); a stator, a rotor, a speed reducing mechanism and a drum brake structure are arranged in the hub shell (22); both ends of the stepped center shaft (21) are provided with clamping grooves (23); clamping blocks (24) matched with the clamping grooves (23) are arranged on the inner wall of the fixed pipe (19); the clamping block (24) is matched with the clamping groove (23) in a clamping way.

5. The electric vehicle hub motor load bearing test stand of claim 1, wherein: one end of the rotating shaft (9) is fixedly connected with a Z-shaped handle (25); a threaded sleeve (26) is symmetrically and fixedly connected to the inner bottom of the fixed frame (8); an external thread is arranged on the side surface of the circumference of the baffle rod (12) close to the bottom; the external thread is in threaded rotation fit with the threaded sleeve (26).