Passive magnetic adsorption device on sliding plate of automobile sideslip inspection bench

Abstract

The utility model relates to the technical field of automobile detection, and discloses a passive magnetic adsorption device on a sliding plate of an automobile sideslip inspection bench, which comprises a mounting seat plate, a magnetic adsorption device and a magnetic adsorption device, the permanent magnet structure is arranged in the caulking groove and used for generating attraction force, the permanent magnet structure comprises a main body, extension bodies, a permanent magnet and side parts, the main body is fixedly provided with a plurality of extension bodies, the two sides of each extension body are provided with a plurality of deformable side parts, the permanent magnet and the extension bodies are fixedly installed, and in the testing process, unnecessary vibration or deviation of the sliding plate can be restrained through magnetic adsorption; it is ensured that the sliding plate only moves under the action of sideslip force, external interference is reduced, the sensor can more accurately capture the sideslip amount, the reliability of the detection result is improved, an external power source or a complex circuit is not needed, the device is simple in structure, low in maintenance cost and stable and durable in magnetic force action, errors possibly caused by power system faults are avoided, and the reliability of the detection result is improved. The method is suitable for a high-frequency and long-time operation detection environment.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to a passive magnetic adsorption device on the slide plate of an automotive side-slip testing platform. Background Technology

[0002] The calibration device for a car sideslip test bench is a measuring device used to verify the accuracy of the two parameters of displacement and resistance of the sideslip test bench. It is often used for testing.

[0003] A search revealed a prior art disclosure of a skateboard-type vehicle side-slip inspection bench (publication number: CN211148040U), comprising a frame, on which two skateboards connected by a return device are mounted, and sensing devices are mounted on both sides of the frame. The return device is connected to a displacement sensor, and limiters are mounted on both sides of the same skateboard. A buffer device is mounted on the frame corresponding to the limiters. The buffer device includes bearings symmetrically arranged about the limiters. The bearings are fixedly connected to the frame via a connecting shaft, and the bearing surfaces are in contact with the surface of the limiters. The line connecting the centers of the two bearings in the same buffer device is parallel to the vehicle's direction of travel during inspection.

[0004] In existing technologies, slides are reset via a return mechanism, which often uses a contact-type lead screw or lever structure. This contact-type reset method involves vibration during the return process and has a slow response speed. Correspondingly, it also requires supporting control components, which are prone to failure when dealing with high-frequency and long-term detection.

[0005] Therefore, we propose a passive magnetic adsorption device for the sliding plate of the car side slip test bench. Utility Model Content

[0006] The present invention mainly addresses the technical problems of poor stability and durability of the slide plate in resetting, and provides a passive magnetic adsorption device for the slide plate of the automobile side slip inspection table.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a passive magnetic adsorption device on the sliding plate of an automobile side-slip testing platform, comprising:

[0008] Mounting base plate, the four corners of the mounting base plate have mounting holes for installation, and one side of the mounting base plate has a groove;

[0009] A permanent magnet structure is set in a groove to generate an attractive force. The permanent magnet structure includes a main body, an extension body, a permanent magnet, and side parts. The main body is fixedly installed with several extension bodies. Several deformable side parts are provided on both sides of each extension body. The permanent magnet is fixedly installed with the extension bodies.

[0010] In a preferred embodiment of this utility model, the main body is a cylinder, the extension body is fan-shaped, and at least three extension bodies are provided on the circumferential surface of the main body.

[0011] As a preferred embodiment of this utility model, the groove includes a circular hole located at the center of the mounting base plate and interference fit with the main body, and a fan-shaped groove with several interconnected circular holes. The main body is fixed in the circular hole, and the extension body is located in the fan-shaped groove. The width of the fan-shaped groove is greater than that of the extension body.

[0012] In a preferred embodiment of this utility model, an installation groove is provided at the end of the extension body, and the permanent magnet is fixedly installed in the installation groove.

[0013] As a preferred embodiment of the present invention, the end of the side portion is provided with a deformation hole, and the side portion is formed into a block that can be squeezed and deformed through the deformation hole.

[0014] In a preferred embodiment of this utility model, the side portion is a semi-circular block, and the deformation hole is a groove with an arc-shaped cross-section, penetrating the side portion.

[0015] As a preferred embodiment of the present invention, the permanent magnet structure further includes a core hole, a bushing, and fins. The core hole is opened at the center of the main body, the bushing is located inside the core hole and fixedly connected to the main body, and several fins are arranged around the bushing.

[0016] In a preferred embodiment of this utility model, the core hole is a circular groove, the bushing passes through the main body and the mounting plate, the fin is an S-shaped plate, one end of the fin is fixedly connected to the outer circumferential surface of the bushing, and the other end of the fin abuts against the inner wall of the core hole.

[0017] This utility model provides a passive magnetic adsorption device for the sliding plate of an automobile side-slip inspection platform. It has the following beneficial effects:

[0018] 1. The passive magnetic adsorption device on the slide of this automotive sideslip testing bench utilizes an extension body and multiple sides. These sides and the extension body oscillate within a groove, and the deformation of the inner wall of the mounting plate, achieved through deformation holes in the sides, absorbs the resonant energy generated by the movement of the mounting plate. After the vehicle tires apply lateral force to the slide, a non-contact restoring force is provided, helping the slide quickly and smoothly return to its initial position. This design avoids the friction and wear of traditional mechanical restoring mechanisms, improving equipment lifespan and test repeatability. During testing, magnetic adsorption suppresses unnecessary vibration or displacement of the slide, ensuring that the slide moves only under the influence of sideslip force. This reduces external interference, allowing sensors to more accurately capture sideslip amount and improve the reliability of test results. Since no external power supply or complex circuitry is required, the device has a simple structure and low maintenance cost. The stable and long-lasting magnetic effect avoids errors that may be caused by power system failures, making it suitable for high-frequency, long-term operating testing environments.

[0019] 2. The passive magnetic adsorption device on the slide plate of the car side slip test bench, by setting deformable fins, can make the bushing float within a certain range when the slide table moves linearly along the guide rod, so as to avoid the bushing getting stuck during the sliding process along the guide rod, and thus the slide table returns to a stable and smooth state with small vibration amplitude. Attached Figure Description

[0020] Figure 1 This is one of the overall perspective views of this utility model;

[0021] Figure 2 This is a perspective view of the mounting base plate of this utility model;

[0022] Figure 3 This is a perspective view of the main body and extension of this utility model;

[0023] Figure 4 This is an assembly drawing of the permanent magnet and the extension body of this utility model;

[0024] Figure 5 A perspective view of the main body of this utility model, showing the mounting bushing and fins.

[0025] Legend: 10. Mounting plate; 11. Slot; 20. Main body; 21. Extension; 22. Permanent magnet; 23. Mounting slot; 24. Side; 25. Deformation hole; 30. Core hole; 31. Bushing; 32. Fin. Detailed Implementation

[0026] The passive magnetic adsorption device on the slide of the car side-slip testing platform, such as Figure 1 and Figure 2 As shown, it includes:

[0027] Mounting base plate 10, with mounting holes at the four corners for mounting, and a groove 11 on one side of the mounting base plate 10;

[0028] like Figure 1 , Figure 3 and Figure 4As shown, a permanent magnet structure is disposed within the groove 11 to generate an attractive force. The permanent magnet structure includes a main body 20, extensions 21, a permanent magnet 22, and sides 24. Several extensions 21 are fixedly mounted on the main body 20. Several deformable sides 24 are provided on both sides of each extension 21. The permanent magnet 22 is fixedly mounted to the extensions 21. The main body 20 is cylindrical, and the extensions 21 are fan-shaped. At least three extensions 21 are provided on the circumferential surface of the main body 20. The groove 11 includes a section located at the center of the mounting base plate 10 and adjacent to the main body 20. The main body 20 is fixed inside the circular hole and the extension body 21 is located inside the fan-shaped groove. The width of the fan-shaped groove is greater than that of the extension body 21. The end of the extension body 21 is provided with a mounting groove 23. The permanent magnet 22 is fixedly installed in the mounting groove 23. The end of the side part 24 is provided with a deformation hole 25. The side part 24 forms a block that can be squeezed and deformed through the deformation hole 25. The side part 24 is a semi-circular block. The deformation hole 25 is a groove with an arc-shaped cross section. The deformation hole 25 penetrates the side part 24.

[0029] The mounting plate 10 is used to mount the slide plate of the testing table. By mounting another mounting plate 10 on the testing table, the permanent magnet 22 attracts the two mounting plates 10 to move closer together, causing the slide plate to reset. During the reset, the extension body 21 and multiple side parts 24 are provided. The side parts 24 and the extension body 21 swing within the groove 11. The deformation of the inner wall of the mounting plate 10 by the side parts 24 with deformation holes 25 absorbs the resonance energy generated by the movement of the mounting plate 10. After the vehicle tires apply lateral force to the slide plate, a non-contact reset force is provided to help the slide plate quickly reset. The device smoothly returns to its initial position, avoiding the friction and wear of traditional mechanical reset mechanisms, thus improving equipment lifespan and test repeatability. During testing, magnetic adsorption suppresses unnecessary vibration or displacement of the slide plate, ensuring that the slide plate moves only under the action of lateral force. This reduces external interference, enabling the sensor to more accurately capture the amount of lateral slip and improve the reliability of the test results. Since no external power supply or complex circuitry is required, the device has a simple structure and low maintenance cost. The magnetic force is stable and durable, avoiding errors that may be caused by power system failures, making it suitable for high-frequency, long-term operation testing environments.

[0030] like Figure 5As shown, the permanent magnet structure also includes a core hole 30, a bushing 31, and fins 32. The core hole 30 is opened at the center of the main body 20. The bushing 31 is located inside the core hole 30 and is fixedly connected to the main body 20. Several fins 32 are arranged around the bushing 31. The core hole 30 is a circular groove. The bushing 31 passes through the main body 20 and the mounting plate 10. The fins 32 are S-shaped plates. One end of the fin 32 is fixedly connected to the outer circumferential surface of the bushing 31, and the other end of the fin 32 abuts against the inner wall of the core hole 30. A guide rod needs to be installed on the detection table. The guide rod passes through the central hole of the bushing 31 and guides the bushing 31 and the main body 20. By setting deformable fins 32, when the slide moves linearly along the guide rod, the bushing 31 can float within a certain range, avoiding jamming of the bushing 31 during sliding along the guide rod. As a result, the slide resets smoothly and with small vibration amplitude.

[0031] The working principle of this utility model is as follows: During installation, the main body 20 is squeezed into the groove 11, and the guide rod is passed through the center hole of the bushing 31 and fixedly installed with the test table. The mounting plate 10 and the slide are locked with screws. By setting the extension body 21 and multiple side parts 24, the side parts 24 and the extension body 21 swing in the groove 11. The side parts 24 with deformation holes 25 abut against the inner wall of the mounting plate 10 to absorb the resonance energy generated by the movement of the mounting plate 10 with the slide. After the vehicle tires apply lateral force to the slide, a non-contact reset force is provided to help the slide return to the initial position quickly and smoothly. By setting the deformable fins 32, the bushing 31 can float within a certain range when the slide moves linearly along the guide rod, avoiding the bushing 31 from getting stuck during the sliding process along the guide rod. As a result, the slide resets smoothly and with small vibration amplitude.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A passive magnetic adsorption device on the slide plate of an automobile side-slip testing platform, characterized in that, include: Mounting base plate (10), the four corners of the mounting base plate (10) are provided with mounting holes for installation, and one side of the mounting base plate (10) is provided with a groove (11). A permanent magnet structure is set in a groove (11) to generate an attractive force. The permanent magnet structure includes a main body (20), an extension (21), a permanent magnet (22), and a side (24). The main body (20) is fixedly installed with several extensions (21). Several deformable side portions (24) are provided on both sides of each extension (21). The permanent magnet (22) is fixedly installed with the extension (21).

2. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 1, characterized in that: The main body (20) is a cylinder, the extension (21) is fan-shaped, and at least three extensions (21) are provided on the circumferential surface of the main body (20).

3. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 1, characterized in that: The groove (11) includes a circular hole located at the center of the mounting plate (10) and an interference fit with the main body (20) and a fan-shaped groove connecting the circular holes. The main body (20) is fixed in the circular hole, and the extension (21) is located in the fan-shaped groove. The width of the fan-shaped groove is greater than that of the extension (21).

4. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 1, characterized in that: The end of the extension (21) is provided with a mounting groove (23), and the permanent magnet (22) is fixedly installed in the mounting groove (23).

5. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 1, characterized in that: The end of the side portion (24) is provided with a deformation hole (25), and the side portion (24) forms a block that can be squeezed and deformed through the deformation hole (25).

6. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 5, characterized in that: The side portion (24) is a semi-circular block, and the deformation hole (25) is a groove with an arc-shaped cross section, which penetrates the side portion (24).

7. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 1, characterized in that: The permanent magnet structure also includes a core hole (30), a bushing (31) and fins (32). The core hole (30) is opened at the center of the main body (20). The bushing (31) is located inside the core hole (30) and is fixedly connected to the main body (20). Several fins (32) are arranged around the bushing (31).

8. The passive magnetic adsorption device on the slide plate of the automobile side slip inspection platform according to claim 7, characterized in that: The core hole (30) is a circular groove, the bushing (31) passes through the main body (20) and the mounting plate (10), the fin (32) is an S-shaped plate, one end of the fin (32) is fixedly connected to the outer circumferential surface of the bushing (31), and the other end of the fin (32) abuts against the inner wall of the core hole (30).

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