Battery car hub pressure resistance detection device

Abstract

According to the technical scheme, the battery car hub pressure resistance detection device comprises a bottom plate, the two sides of the top of the bottom plate are each provided with two hinged limiting plates through a supporting frame, and the ends, away from the supporting frames, of the two limiting plates on the same supporting frame are each rotationally provided with a moving block; the two moving blocks are in threaded connection with the same bidirectional lead screw, the two moving blocks are symmetrically arranged on the bidirectional lead screw, a driving motor is arranged at one end of the bidirectional lead screw, a movable moving rod is arranged at the top of the bottom plate, a limiting rod is arranged on the moving rod, and a liftable pressing rod is arranged on the upper portion of the moving rod. Hubs with different diameters are limited through rotary connection between every two of the four limiting plates, the circle centers of the limited hubs are located at the same position all the time, meanwhile, the movable rods move to drive the limiting rods to move, the hubs are extruded to the side walls of the limiting plates from the circle centers of the hubs, and then the hubs are stably limited.

Description

Technical Field

[0001] The invention relates to the technical field of battery vehicles, and in particular to a device for detecting the compression resistance of a wheel hub of a battery vehicle. Background Art

[0002] Battery cars are also called "electric cars". They are pure electric vehicles that are powered by batteries (batteries) and driven by motors (DC, AC, series excitation, external excitation). In recent years, they have been widely popularized in my country.

[0003] At present, in the process of electric vehicle production, it is necessary to test the performance of each part. In the wheel hub inspection project, it is necessary to test the compression resistance of the wheel hub to avoid abnormal quality of the wheel hub and improve the safety performance of the electric vehicle.

[0004] When performing a compression test on the wheel hub of a battery car, it is necessary to limit the wheel hub of the battery car. However, the existing limiting mechanism can only limit the wheel hub of one model and size, or leaves extra space to accommodate wheels of different sizes, resulting in the inability to stably limit the wheel hub when limiting the wheel hub. The wheel hub will shift, which may lead to inaccurate compression test and pose a safety hazard. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a device for detecting the compression resistance of a battery car wheel hub.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A battery car wheel hub compression resistance detection device comprises a base plate, two hinged limit plates are arranged on both sides of the top of the base plate through a support frame, the limit plates are arranged as arc plates and the inner walls of the four arc plates are arranged facing each other, two limit plates on the same support frame are rotatably arranged with moving blocks at one end away from the support frame, the two moving blocks are threadedly connected with the same bidirectional screw rod, and the two moving blocks are symmetrically arranged on the bidirectional screw rod, a driving motor is arranged at one end of the bidirectional screw rod, a movable moving rod is arranged on the top of the base plate, a limit rod is arranged on the moving rod, and a liftable pressure rod is arranged on the upper part of the moving rod.

[0008] Preferably, the centers of the circular cross sections at both ends of the limiting rod and the center points of the four limiting plates are located on the same horizontal line.

[0009] Preferably, the limiting rod is sleeved on the moving rod, and the diameter of the limiting rod is not greater than the minimum distance between the two bidirectional screw rods.

[0010] Preferably, reinforcing rods located on the top surface of the bottom plate and slidable are fixed on both sides of the limiting rod.

[0011] Preferably, the distance that the pressure rod protrudes from the moving rod is greater than the distance that the limiting rod on the same side protrudes from the moving rod, and protrudes at least 3 cm more.

[0012] Preferably, the diameter of the pressure rod is not greater than the diameter of the limiting rod.

[0013] Preferably, a driving motor 1 is arranged in the base plate, a threaded rod 1 is arranged on the output end of the driving motor 1, and a threaded block 1 fixedly connected to the moving rod is arranged on the threaded rod 1.

[0014] Preferably, the upper part of the moving rod is configured as a cylinder with an open top, and a driving motor 2 is provided on the top of the moving rod. The output end of the driving motor 2 is provided with a threaded rod 2 located inside the moving rod, and a threaded block 2 fixedly connected to the pressure rod is provided on the threaded rod 2.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention limits the wheel hub by four limiting plates, and limits the wheel hubs of different diameters by rotating the limiting plates in pairs, and the center of the limited wheel hub is always located at the same position. At the same time, the limiting rod is driven to move by the movement of the moving rod, so that the wheel hub is squeezed from the center of the wheel hub to the side wall of the limiting plate, thereby stably limiting the wheel hub, avoiding the inaccuracy of the compression resistance test caused by the displacement of the wheel hub;

[0017] 2. The present invention drives the pressure rod to move by the movement of the moving rod, thereby ensuring that the distance between the end of the pressure rod connected to the second threaded block and the wheel hub is always the same, so that the pressure rod is reasonably and fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the limiting plate of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the mobile rod of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the driving motor 2 of the present invention.

[0023] Notes in the figure: 1. Bottom plate; 2. Support frame; 3. Limit plate; 4. Moving rod;

[0024] 5. Rotating shaft; 6. Driving motor; 7. Bidirectional screw rod; 8. Moving block; 9. Reinforcing rod;

[0025] 10. A threaded block; 11. A threaded rod; 12. A driving motor; 13. A limit rod;

[0026] 14. Two driving motors; 15. Pressure rod; 16. Two threaded rods; 17. Two threaded blocks. DETAILED DESCRIPTION

[0027] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0028] like Figure 1 As shown, as a battery wheel hub compression resistance detection device of the present invention, it includes a bottom plate 1, and support frames 2 are arranged on both sides of the top of the bottom plate 1. Figure 2 As shown, one end of the facing surfaces of the two support frames 2 are hinged with two limit plates 3 through a rotating shaft 5. The limit plates 3 are arranged in an arc-shaped plate and the inner walls of the four arc-shaped plates are arranged facing each other. The two limit plates 3 on the same support frame 2 are rotatably arranged with a moving block 8 at one end away from the support frame 2. The two moving blocks 8 are threadedly connected with the same bidirectional screw rod 7, and the two moving blocks 8 are symmetrically arranged on the bidirectional screw rod 7. A driving motor 6 is arranged at one end of the bidirectional screw rod 7. The driving motor 6 drives the bidirectional screw rod 7 to rotate, thereby driving the two moving blocks 8 to move in opposite directions on the bidirectional screw rod 7, thereby changing the distance between one end of the two limit plates 3, so that the four limit plates 3 can limit the wheel hubs of different diameters, thereby increasing the application range of the product.

[0029] A driving motor 12 is arranged in the bottom plate 1. Figure 3As shown, a threaded rod 11 is provided at the output end of the driving motor 12, and a threaded block 10 is threadedly provided on the threaded rod 11, the threaded block 10 penetrates the bottom plate 1 and is slidably connected to the bottom plate 1, and a moving rod 4 is fixedly connected to the top of the threaded block 10, and the threaded rod 11 is driven to rotate by the driving motor 12, thereby driving the threaded block 10 to move on the threaded rod 11 and then driving the moving rod 4 to move, and a limiting rod 13 is provided on the moving rod 4, and the center of the circular cross-section at both ends of the limiting rod 13 is located on the same horizontal line with the center point of the four limiting plates 3, so that when the moving rod 4 drives the limiting rod 13 to move, it will drive the limiting rod 13 to hit the center of the wheel hub until the wheel hub is close to the side wall of the limiting plate 3, thereby realizing stable limiting of the wheel hub, the limiting rod 13 is sleeved on the moving rod 4, and the diameter of the limiting rod 13 is not greater than the minimum spacing between the two bidirectional screw rods 7, to ensure that the bidirectional screw rod 7 will not affect the propulsion work of the limiting rod 13.

[0030] like Figure 3 As shown, both sides of the limit rod 13 are fixed with slidable reinforcing rods 9 located on the top surface of the bottom plate 1 to improve the stability of the limit rod 13 and the structure on the limit rod 13. The upper part of the moving rod 4 is set to be a cylinder with an open top. The top of the moving rod 4 is provided with a driving motor 2 14. The output end of the driving motor 2 14 is provided with a threaded rod 2 16 located in the moving rod 4. Figure 4 As shown, a threaded block 2 17 is provided on the threaded rod 2 16, and the threaded block 2 17 passes through the moving rod 4 and is slidably connected to the moving rod 4. One end of the threaded block 2 17 is fixedly connected to the pressure rod 15, and the driving motor 2 14 drives the threaded rod 2 16 to rotate, thereby driving the threaded block 2 17 to move and then driving the pressure rod 15 to rise and fall. The pressure resistance test is completed by the lifting and lowering of the pressure rod 15. The distance that the pressure rod 15 protrudes from the moving rod 4 is greater than the distance that the limiting rod 13 on the same side protrudes from the moving rod 4, and it protrudes 3 cm more, ensuring that the pressure rod 15 can stably perform pressure resistance test on the wheel hub pressed by the limiting rod 13, and the diameter of the pressure rod 15 is not greater than the diameter of the limiting rod 13, ensuring that the lifting and lowering of the pressure rod 15 will not be affected by the two-way screw rod 7, thereby ensuring the stable progress of the pressure resistance test.

[0031] When in use, the wheel hub is placed between the four limit plates 3, and the position of the limit plates 3 is adjusted by driving the motor 6 to clamp the wheel hub, limiting the position of the wheel hub in the up, down, left and right directions. The limit rod 13 is driven by driving the motor 1 12 to move, thereby pushing the wheel hub to stick to the side walls of the limit plates 3, limiting the position of the wheel hub in the front and back directions, thereby achieving comprehensive and stable limiting of the wheel hub, and the pressure rod 15 is driven up and down by driving the motor 2 14 to complete the compression resistance test of the wheel hub.

[0032] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A battery car hub compression resistance detection device, characterized in that: The invention comprises a bottom plate (1), two hinged limit plates (3) are arranged on both sides of the top of the bottom plate (1) through a support frame (2), the limit plates (3) are arranged as arc-shaped plates and the inner walls of the four arc-shaped plates are arranged facing each other, two limit plates (3) on the same support frame (2) are rotatably arranged at one end away from the support frame (2) and are provided with a moving block (8), the two moving blocks (8) are threadedly connected to the same bidirectional screw rod (7), and the two moving blocks (8) are symmetrically arranged on the bidirectional screw rod (7), one end of the bidirectional screw rod (7) is provided with a driving motor (6), a movable moving rod (4) is arranged on the top of the bottom plate (1), a limit rod (13) is arranged on the moving rod (4), and a liftable pressure rod (15) is arranged on the upper part of the moving rod (4).

2. A battery car hub compression resistance detection device according to claim 1, characterized in that: The centers of the circular cross sections at both ends of the limiting rod (13) and the center points of the four limiting plates (3) are located on the same horizontal line.

3. A battery car hub compression resistance detection device according to claim 2, characterized in that: The limiting rod (13) is sleeved on the moving rod (4), and the diameter of the limiting rod (13) is not greater than the minimum distance between the two bidirectional screw rods (7).

4. A battery car hub compression resistance detection device according to claim 3, characterized in that: Reinforcing rods (9) which are located on the top surface of the bottom plate (1) and are slidable are fixed on both sides of the limiting rod (13).

5. A battery car hub compression resistance detection device according to claim 4, characterized in that: The distance that the pressure rod (15) protrudes from the moving rod (4) is greater than the distance that the limiting rod (13) on the same side protrudes from the moving rod (4), and the distance protrudes at least 3 cm more.

6. A battery car hub compression resistance detection device according to claim 5, characterized in that: The diameter of the pressure rod (15) is not greater than the diameter of the limiting rod (13).

7. The battery car hub compression resistance detection device according to claim 1, characterized in that: A driving motor (12) is arranged in the base plate (1), and a threaded rod (11) is arranged at the output end of the driving motor (12), and a threaded block (10) fixedly connected to the moving rod (4) is threadedly arranged on the threaded rod (11).

8. A battery car wheel hub compression resistance detection device according to claim 7, characterized in that: The upper part of the moving rod (4) is arranged in a cylindrical shape with an open top, and a second driving motor (14) is arranged on the top of the moving rod (4). The output end of the second driving motor (14) is provided with a second threaded rod (16) located inside the moving rod (4), and the second threaded rod (16) is threadedly provided with a second threaded block (17) fixedly connected to the pressure rod (15).

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