Damper work simulation detection device

Abstract

The invention discloses a damper work simulation detection device, and relates to the field of damper detection equipment, the damper work simulation detection device comprises a detection bench and a support arm, and the detection bench is provided with a driving member used for driving the support arm to rotate along a transverse direction; the detection wheel is located at one end of the supporting arm, the supporting arm is provided with a simulation suspension used for installing the detection wheel, the end, close to the simulation suspension, of the supporting arm is provided with a damper installation frame, and a damper to be detected is installed between the damper installation frame and the simulation suspension; the annular test belt is arranged at the lower end of the detection table in the circumferential direction of the detection table, a detection track is arranged on the upper end face of the annular test belt, and the supporting arms drive the detection wheels to move along the detection track during working; and the plurality of obstacle simulation pieces are uniformly arranged along the circumferential direction of the annular test belt and protrude towards the direction close to the supporting arm, and the annular test belt is provided with an adjusting mechanism for driving the obstacle simulation pieces to enter or leave the detection track. The testing device has the effects of simulating the real use condition of the damper and improving the testing accuracy.

Description

Technical Field

[0001] The present invention relates to the field of damper detection equipment, and in particular, to a damper working simulation detection device. Background Art

[0002] A damper, also known as a shock absorber, as a dedicated shock-absorbing structure, is mainly used to reduce vibration and absorb shock, and can convert vibration energy into heat energy or other forms of energy. Therefore, it is widely used in the fields of automobiles and machining. Due to the application environment of the damper, the requirements for its working safety are relatively high. Therefore, before the damper is put into actual use, it needs to be subjected to safety detection through special detection equipment.

[0003] The related technology can refer to the Chinese patent with the publication number CN115165287B, which discloses an automobile shock absorber durability test bench, including a suspension simulation end, an impact manufacturing end, and a counterattack mechanism. The suspension simulation end includes an upper end of the shock absorber and a lower end of the shock absorber. The upper end of the shock absorber is connected to the upper end of the shock absorber, and the lower end of the shock absorber is connected to the lower end of the shock absorber. A first spring is also connected between the upper end of the shock absorber and the shock absorber. The lower end of the shock absorber includes a wheel assembly. The impact manufacturing end abuts against the wheel assembly and is used to lift the wheel assembly. When the wheel assembly moves from the highest point to the lowest point, the wheel assembly contacts the counterattack mechanism at the lowest point. By placing weights above the shock absorber, the load on the wheel assembly is closer to the actual use scenario. The kinetic energy generated during the impact is significantly greater than that of the prior art and closer to the kinetic energy generated by the impact in the actual use scenario. The obtained test results are more referenceable compared to the prior art.

[0004] In view of the above related technology, during the detection process, the impact manufacturing end is mainly used to simulate the impact situation that the tire receives during actual driving. However, due to the fixed structural shape of the impact manufacturing end, the height of the wheel assembly lifted each time is the same. In the actual driving process of the vehicle, it is difficult to determine the undulation situation of the road surface. Therefore, the undulation frequency and height of the vehicle wheels are usually not fixed. During this process, the magnitude and direction of the impact force borne by the damper are also not fixed. Therefore, there is still a gap between the test results of the above detection equipment and the actual use data, and the test accuracy is not high. Summary of the Invention

[0005] In order to simulate the actual use situation of the damper and improve the test accuracy, the present application provides a damper working simulation detection device.

[0006] The present application provides a damper working simulation detection device, adopting the following technical solutions: A damper working simulation detection device, including a detection table, further includes: a support arm, which is located at the upper end of the detection table and is rotationally connected to the detection table in the transverse direction, and the detection table is provided with a driving member for driving the support arm to rotate; a detection wheel, which is located at one end of the support arm away from its rotation axis, the support arm is provided with a simulation suspension for installing the detection wheel, and a damper mounting bracket is provided at one end of the support arm close to the simulation suspension, and the damper to be detected is installed between the damper mounting bracket and the simulation suspension; an annular test belt, which is located at the lower end of the detection table and is arranged circumferentially around the detection table, and a detection track is provided along the circumferential direction on the upper end surface of the annular test belt, and the support arm drives the detection wheel to move along the detection track during operation; a plurality of obstacle simulation members, which are evenly arranged along the circumferential direction of the annular test belt and protrude towards the support arm, and the annular test belt is provided with an adjustment mechanism for driving the obstacle simulation members to enter or leave the detection track.

[0007] By adopting the above technical solution, the damper to be detected is installed on the damper mounting bracket, and the driving member drives the support arm to rotate, so that the support arm drives the detection wheel to move along the detection track through the simulation suspension. Under the action of the damper mounting bracket, the detection wheel applies a force to the damper during the movement. In the initial state, all the obstacle simulation members are located outside the detection track. During the detection process, any detection simulation member is sent into the detection track through the adjustment mechanism. When the detection wheel contacts the obstacle simulation member, undulations occur, and then by simulating the actual driving situation, by sending the obstacle simulation members at different positions into or out of the detection track, the detection wheel has an irregular undulating track, simulating the actual use situation of the damper, making the test result closer to the actual driving condition of the vehicle, which is beneficial to improving the test accuracy.

[0008] Optionally, the obstacle simulation member includes a plurality of obstacle blocks, all the obstacle blocks are located at the upper end of the annular test belt and protrude towards the support arm, and the distances from all the obstacle blocks in the same obstacle simulation member to the support arm are not the same. The test table is provided with a support rail in the diameter direction of the annular test belt, and all the obstacle blocks in the same obstacle simulation member are slidably connected to the support rail along the length direction of the support rail. The support rail is provided with a through groove for avoiding the obstacle blocks, and all the obstacle blocks on the same support rail are sleeved in sequence from bottom to top, and the adjustment mechanism is used to drive any obstacle block to move along the support rail.

[0009] By adopting the above technical solution, in the initial state, all the obstacle blocks are located outside the detection track. During the detection process, the adjustment mechanism is used to drive different obstacle blocks to enter the detection track along the through groove of the support rail, so that the obstacle blocks contact the detection wheel and simulate the road bump situation. Different obstacle blocks have different heights relative to the upper end surface of the annular test belt, which is beneficial to improving the test diversity, further improving the simulation authenticity, and enhancing the accuracy of the test result.

[0010] Optionally, a support plate is fixedly provided on one side of the obstacle block close to the axis of the annular test belt. The support plate is slidably connected to the support rail along the length direction of the support rail. All the support plates are located in the through groove, and the upper end surfaces of the support plates are flush with the upper end surface of the annular test belt. In the same support rail, any two adjacent support plates are in contact with each other.

[0011] By adopting the above technical solution, in the initial state, the support plate is located within the detection track. During the movement of the detection wheel, the support plate blocks the through groove and supports the detection wheel. When the obstacle block moves, it drives the corresponding support plate to move. When the obstacle block drives the support plate to move away from the axis of the annular test belt, after the support plate leaves the detection track, the through groove is connected to the detection track. By simulating the potholes on the actual road through the through groove, it is beneficial to further improve the authenticity of the test results.

[0012] Optionally, the adjusting mechanism includes a pushing member, a jacking member, a moving block and a plugging rod. The moving block is located at the lower end of all the obstacle blocks and is slidably connected to the support rail along the length direction of the support rail. The pushing member is fixedly provided at one end of the support rail for driving the moving block to move. The plugging rod passes through the moving block vertically and is slidably connected to the moving block. The jacking member is arranged at the lower end of the support rail for driving the plugging rod to move up and down. All the obstacle blocks are vertically provided with connecting holes, and the connecting holes are located above the plugging rod and are adapted to the plugging rod.

[0013] By adopting the above technical solution, in the initial state, all the obstacle blocks are located outside the detection track. At this time, the plugging rod is located below all the obstacle blocks and is aligned with the connecting holes. When it is necessary to move the obstacle block, the jacking member drives the plugging rod into the connecting hole of the corresponding obstacle block. Then, the pushing member drives the moving block to move along the support rail. When the moving block moves, it drives the corresponding obstacle block to move through the plugging rod. When any obstacle block moves, all the obstacle blocks with a smaller diameter than it in the same support rail move with it. When the obstacle block contacts the detection wheel, the obstacle block with a smaller diameter supports the obstacle block with the largest diameter, which is beneficial to improving the support stability of the obstacle block to the detection wheel.

[0014] Optionally, the jacking member includes a lifting motor and a lifting plate. The lifting plate is located at the lower end of the support rail and is slidably connected to the support rail vertically. The lifting motor is fixedly provided at the lower end of the support rail for driving the lifting plate to move. The plugging rod is located at the upper end of the lifting plate and moves synchronously with the lifting plate. The lifting plate is provided with a moving groove along the length direction of the support rail, and the plugging rod is slidably connected to the lifting plate along the length direction of the moving groove.

[0015] By adopting the above technical solution, when the lifting motor works, it drives the lifting plate to move, so that the lifting plate drives the insertion rod to rise or fall, and further makes the insertion rod approach or move away from the obstacle block. After the insertion rod enters the connection hole of the required obstacle block, the moving block drives the insertion rod to move along the support rail, and the lifting plate provides a moving space for the movement of the insertion rod through the moving groove.

[0016] Optionally, a positioning frame is slidably connected to the support rail in the vertical direction. A positioning rod is fixedly connected to the positioning frame in the vertical direction. All the obstacle blocks are vertically provided with positioning holes adapted to the positioning rod. When the obstacle block is at one end of the support rail away from the axis of the annular test belt, its positioning hole is aligned with the positioning rod. A pushing block facing the abutting block is fixedly connected to the upper end of the lifting plate. The lower end of the positioning frame passes through the support rail and faces the pushing block. An elastic member is provided between the positioning frame and the support rail, and the elastic member is used to apply a thrust to the positioning frame to approach the pushing block.

[0017] By adopting the above technical solution, in the initial state, the positioning frame approaches the pushing block under the action of the elastic member. At this time, the positioning rod sequentially passes through the positioning holes of all the obstacle blocks on the same support rail, thereby positioning the obstacle blocks. When the lifting plate drives the insertion rod to approach the obstacle block, the pushing block approaches the positioning frame along with the lifting plate. After the pushing block contacts the positioning frame, it pushes the positioning frame to move upward, so that the positioning frame drives the positioning rod to be separated from all the obstacle blocks one by one, thereby releasing the limit on the obstacle blocks.

[0018] Optionally, the annular test belt includes an annular lifting frame and a plurality of sector plates. The annular lifting frame is slidably connected to the detection table in the vertical direction. The detection table is provided with a power member for driving the annular lifting frame to perform reciprocating motion in the vertical direction. The plurality of sector plates are arranged circumferentially along the annular lifting frame and are slidably connected to it around the circumference of the annular lifting frame. The support rail is located between any two adjacent sector plates, and the support rail is rotationally connected to the detection table around the axis of the annular lifting frame. Both sides of the upper end of the support rail in the width direction are fixedly connected with sector blocks, and the sector plates on both sides of the support rail are in contact with the sector blocks.

[0019] By adopting the above technical solution, the detection table supports all the sector plates through the annular lifting frame. When the power member drives the annular lifting frame to move, the annular lifting frame drives all the sector plates to move up or down. The sector blocks are used to fill the gap between the support rail and the sector plates, so that the sector plates and the support rail are interlocked to restrict their circumferential rotation. When the annular lifting frame drives the sector block to move up, the sector plate is separated from the sector block. At this time, the angle between adjacent support rails can be adjusted, thereby adjusting the distance between adjacent obstacle simulation members and improving the test diversity.

[0020] Optionally, the inspection table rotates coaxially with a central rotating shaft. The driving member is used to drive the central rotating shaft to rotate. A polygonal prism is coaxially fixed to the upper end of the central rotating shaft. One end of the support arm close to the central rotating shaft is sleeved outside the polygonal prism and slidably connected to the polygonal prism along the axis of the polygonal prism. The central rotating shaft drives the support arm to rotate through the polygonal prism. A plurality of counterweight blocks are detachably connected to the upper end of the support arm.

[0021] By adopting the above technical solution, the central rotating shaft limits the support arm through the polygonal prism. When the driving member drives the central rotating shaft to rotate, the central rotating shaft drives the support arm to move through the polygonal prism, and the support arm has a vertical movement space. By increasing or decreasing the counterweight blocks, the support arm applies pressure to the inspection wheel, and then applies a force to the damper to be detected, simulating the real working level when the damper is installed on the vehicle suspension.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Install the damper to be detected on the damper mounting bracket. Drive the support arm to rotate through the rotating member, so that the support arm drives the inspection wheel to move along the inspection track through the simulated suspension. Under the action of the damper mounting bracket, the inspection wheel applies a force to the damper during the movement. In the initial state, all obstacle simulation members are located outside the inspection track. During the inspection, any inspection simulation member is sent into the inspection track through the adjustment mechanism. When the inspection wheel contacts the obstacle simulation member, it undulates. Then, by simulating the actual driving situation, by sending the obstacle simulation members at different positions into or out of the inspection track, the inspection wheel has an irregular undulating track, simulating the real use situation of the damper, making the test result close to the actual driving condition of the vehicle, which is beneficial to improving the test accuracy. 2. In the initial state, all obstacle blocks are located outside the inspection track. During the inspection, use the adjustment mechanism to drive different obstacle blocks to enter the inspection track along the through groove of the support rail, so that the obstacle blocks contact the inspection wheel and simulate the road bump situation. Different obstacle blocks have different heights relative to the upper end surface of the annular test belt, which is beneficial to improving the test diversity, further improving the simulation authenticity, and enhancing the accuracy of the test result. 3. The inspection table supports all the fan-shaped plates through the annular lifting frame. When the power member drives the annular lifting frame to move, the annular lifting frame drives all the fan-shaped plates to move up or down. The fan-shaped block is used to fill the gap between the support rail and the fan-shaped plate, so that the fan-shaped plate and the support rail are interlocked to restrict their circumferential rotation. When the annular lifting frame drives the fan-shaped block to move up, the fan-shaped plate is separated from the fan-shaped block. At this time, the included angle between adjacent support rails can be adjusted, and then the distance between adjacent obstacle simulation members can be adjusted to improve the test diversity. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the embodiment.

[0024] Figure 2 It is a schematic diagram designed to highlight the internal structure of the detection table.

[0025] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0026] Figure 4 It is a schematic diagram designed to highlight the structure of the obstacle simulation part.

[0027] Figure 5 It is a schematic diagram designed to highlight the structure of the support rail.

[0028] Explanation of reference numerals: 1. Detection table; 11. Driving part; 12. Central rotating shaft; 13. Multi - prism; 2. Support arm; 21. Detection wheel; 22. Simulation suspension; 23. Damper mounting bracket; 24. Counterweight; 3. Ring - shaped test belt; 31. Ring - shaped lifting frame; 32. Sector plate; 4. Obstacle simulation part; 41. Obstacle block; 411. Connection hole; 412. Positioning hole; 42. Support plate; 43. Support rail; 431. Through - slot; 432. Sector block; 433. Connection ring; 51. Pushing part; 52. Lifting part; 521. Lifting motor; 522. Lifting plate; 523. Moving slot; 524. Pushing block; 53. Moving block; 54. Inserting rod; 541. Slide block; 6. Positioning frame; 61. Positioning rod; 62. Elastic part; 71. Driving motor; 72. Screw rod. Detailed implementation manners

[0029] The following further elaborates on this application in conjunction with all the attached drawings.

[0030] The embodiment of this application discloses a damper working simulation detection device.

[0031] Embodiment: Referring to Figure 1 and Figure 2 , a damper working simulation detection device includes a detection table 1, and a central rotating shaft 12 is rotationally connected to the detection table 1 in the transverse direction. A driving part 11 is installed at the lower end of the detection table 1, and the driving part 11 is a motor. When the motor works, it drives the central rotating shaft 12 to rotate. A multi - prism 13 is coaxially fixed to the upper end of the central rotating shaft 12. When the central rotating shaft 12 rotates, it drives the multi - prism 13 to rotate. A support arm 2 is arranged at the upper end of the detection table 1. One end of the support arm 2 along the length direction is sleeved outside the multi - prism 13 and is slidably connected to the multi - prism 13 along the axis direction of the multi - prism 13. When the multi - prism 13 rotates, it drives the support arm 2 to rotate, and the support arm 2 has a moving space along the axis direction of the multi - prism 13.

[0032] Referring to Figure 1 and Figure 2, one end of the support arm 2 away from the central rotating shaft 12 is provided with a simulation suspension 22, one side of the simulation suspension 22 away from the support arm 2 is provided with a detection wheel 21, and when the support arm 2 moves, the detection wheel 21 is driven to move through the simulation suspension 22. A damper mounting bracket 23 is also installed on one side of the support arm 2 close to the simulation suspension 22. During detection, the damper to be detected is installed at the damper mounting bracket 23.

[0033] Referring to Figure 1 and Figure 2 , a circular test belt 3 is arranged on the detection table 1 in the circumferential direction. The circular test belt 3 includes a circular lifting frame 31 and a plurality of sector plates 32. The circular lifting frame 31 is located below the support arm 2 and is slidably connected to the detection table 1 in the vertical direction. A power member for driving the circular lifting frame 31 to move is provided at the lower end of the detection table 1. The power member includes a driving motor 71 and a screw rod 72. The screw rod 72 is arranged vertically and is rotatably connected to the detection table 1, and the screw rod 72 passes through the circular lifting frame 31 and is threadedly connected to the circular lifting frame 31. The driving motor 71 is installed at the lower end of the screw rod 72 for driving the screw rod 72 to rotate. Under the limiting action of the detection table 1, when the screw rod 72 rotates, the circular lifting frame 31 is driven to move vertically.

[0034] Referring to Figure 2 and Figure 3 , a plurality of sector plates 32 are arranged in the circumferential direction of the circular lifting frame 31, and all the sector plates 32 are slidably connected to the circular lifting frame 31 along the outer circle of the circular lifting frame 31. The circular lifting frame 31 supports the sector plates 32, and when the circular lifting frame 31 moves, all the sector plates 32 are driven to move. The detection table 1 is also provided with a plurality of support rails 43. One end of the support rail 43 in the length direction is fixedly connected with a connecting ring 433. The connecting ring 433 is sleeved outside the detection table 1 and is rotatably connected to the detection table 1, and all the connecting rings 433 are coaxial with the circular lifting frame 31.

[0035] Referring to Figure 2 and Figure 3 , the detection table 1 supports and limits the support rail 43 through the connecting ring 433, so that the support rail 43 is parallel to the sector plate 32, and the upper end surfaces of all the support rails 43 are located in the same plane. In the initial state, the upper end surface of the support rail 43 is flush with the upper end surface of the sector plate 32. Sector blocks 432 are fixedly arranged on both sides of the support rail 43 in the width direction. The sector plate 32 close to the support rail 43 abuts against the sector block 432. Between any two adjacent support rails 43, any two adjacent sector plates 32 are mutually attached, so that the support rail 43 and the sector plate 32 mutually lock their rotation in the transverse direction.

[0036] Referring to Figure 1 and Figure 2, when it is necessary to adjust the included angle between adjacent support rails 43, first drive the annular lifting frame 31 to lift through the power member, so that the sector plate 32 moves above the support rail 43. At this time, the lateral movement limits of both the sector plate 32 and the support rail 43 are released, facilitating the lateral rotation of the support rail 43 and the sector plate 32. After the movement is completed, drive the annular lifting frame 31 to reset through the power member, so that the sector plate 32 and the support rail 43 are interlocked again. Fixed plates are detachably connected between two adjacent sector plates 32 and between the sector plate 32 and the sector block 432 to improve the stability of the annular test belt 3 during operation.

[0037] Referring to Figure 2 and Figure 4 , all support rails 43 are provided with obstacle simulation members 4. The obstacle simulation members 4 include a plurality of obstacle blocks 41. The support rail 43 is provided with a through groove 431 along the length direction. All obstacle blocks 41 are located in the through groove 431 and are slidably connected to the support rail 43 along the length direction of the through groove 431. The obstacle blocks 41 protrude through the through groove 431 towards the direction close to the support arm 2. When the support rail 43 moves, all obstacle blocks 41 are driven to move. The diameters of all obstacle blocks 41 on the same support rail 43 are different, and all obstacle blocks 41 are sleeved in ascending order of diameter from bottom to top.

[0038] Referring to Figure 2 and Figure 4 , when all obstacle blocks 41 are away from the end of the corresponding support rail 43 far from the connecting ring 433, all obstacle blocks 41 on the same support rail 43 overlap each other. A support plate 42 is fixedly connected to the side of the obstacle block 41 close to the connecting ring 433. The support plates 42 of two adjacent obstacle blocks 41 are in contact with each other. All support plates 42 cooperate to block the through groove 431. A plurality of counterweight blocks 24 are arranged above the support arm 2. Under the action of the counterweight blocks 24, the support arm 2 applies pressure to the detection wheel 21 through the simulation suspension 22, and then applies a force to the damper to be detected through the detection wheel 21. The sector plate 32, the sector block 432 and the support rail 43 cooperate to form a complete support plane. When the support arm 2 moves, it drives the detection wheel 21 to move along the support plane. A detection track is preset on the support plane. The detection wheel 21 moves along the detection track of the support plane. In the initial state, all support plates 42 are located within the support plane. When the detection wheel 21 moves, it passes above the support plate 42, and the support plate 42 supports the support wheel.

[0039] Referring to Figure 2 and Figure 4, the support rail 43 is further provided with an adjusting mechanism for driving the obstacle block 41 to move. The adjusting mechanism includes a pushing member 51, a lifting member 52, a moving block 53 and a plugging rod 54. The moving block 53 is located below all the obstacle blocks 41 and is slidably connected to the support rail 43 along the length direction of the support rail 43. When the support rail 43 moves, it drives the moving block 53 to move. The pushing member 51 includes a pushing motor and a lead screw. The lead screw is arranged along the length direction of the support rail 43 and is rotatably connected to the support rail 43 around its own axis. The lead screw passes through the moving block 53 and is threadedly connected to the moving block 53. When the lead screw rotates, it drives the moving block 53 to move along the length direction of the support rail 43. The pushing motor is installed at one end of the support rail 43 and is used to drive the lead screw to rotate.

[0040] Referring to Figure 2 and Figure 5 , the moving block 53 is slidably connected with a plugging rod 54 in the vertical direction. When the moving block 53 moves, it drives the plugging rod 54 to move. The lifting member 52 is located below the moving block 53 and is used to drive the plugging rod 54 to move. The lifting member 52 includes a lifting motor 521 and a lifting plate 522. The lifting plate 522 is located below the moving block 53 and is slidably connected to the support rail 43 in the vertical direction. A guiding rod for guiding the movement of the lifting plate 522 is fixedly provided at the lower end of the support rail 43. A moving groove 523 is formed in the upper end surface of the lifting plate 522 along the length direction. The lower end of the plugging rod 54 is fixedly connected with a slider 541 adapted to the moving groove 523. The slider 541 is located in the moving groove 523 and is slidably connected to the lifting plate 522 along the length direction of the moving groove 523.

[0041] Referring to Figure 4 and Figure 5 , when the lifting plate 522 moves in the vertical direction, it drives the plugging rod 54 to move synchronously, so that the plugging rod 54 approaches or moves away from the obstacle block 41. When the moving block 53 drives the plugging rod 54 to move along the length direction of the support rail 43, the plugging rod 54 drives the slider 541 to move along the moving groove 523, so that the lifting plate 522 maintains the connection with the plugging rod 54. All the obstacle blocks 41 are vertically provided with connection holes 411. The moving track of the plugging rod 54 passes through directly below the connection holes 411 of the obstacle blocks 41.

[0042] Referring to Figure 2 and Figure 5 , initially, all the obstacle blocks 41 are located outside the detection track. During the detection process, first, the lifting member 52 drives the plugging rod 54 to rise, so that the plugging rod 54 enters the connection hole 411 of any obstacle block 41. Then, the pushing member 51 drives the moving block 53 to move along the support rail 43, so that the plugging rod 54 drives the corresponding obstacle block 41 into the detection track. When the detection wheel 21 contacts the obstacle block 41, undulations are generated, causing a change in the magnitude of the force exerted on the damper to be detected, thereby detecting the damper.

[0043] Reference Figure 2 and Figure 5 After the insertion rod 54 enters the connection holes 411 of different obstacle blocks 41, it drives the different obstacle blocks 41 to move, thereby enabling the detection wheel 21 to have different undulation heights. At the same time, when the moving block 53 moves away from the connection ring 433, the insertion rod 54 drives the corresponding obstacle block 41 to move, causing the obstacle block 41 to drive the support plate 42 out of the detection track, so that the through groove 431 of the support rail 43 is connected to the detection track. When the detection wheel 21 passes through the through groove 431, it sinks, thereby simulating the situation when the vehicle wheel passes through a pothole. Similarly, when the insertion rod 54 contacts different obstacle blocks 41, it drives the different obstacle blocks 41 to move, thereby adjusting the width of the through groove 431 connected to the detection track.

[0044] Reference Figure 2 and Figure 5 As shown in FIGS. and, a positioning frame 6 slides vertically along the support rail 43. The positioning frame 6 passes through the support rail 43. A positioning rod 61 is fixed vertically on the positioning frame 6. The positioning rod 61 passes through the support rail 43 and is slidably connected to the support rail 43. All the obstacle blocks 41 are vertically provided with positioning holes 412 adapted to the positioning rod 61. When the obstacle blocks 41 on the same support rail 43 overlap, their positioning holes 412 are located on the same axis.

[0045] Reference Figure 2 and Figure 5 As shown in FIGS. and, an elastic member 62 is provided between the positioning frame 6 and the support rail 43. The elastic member 62 is a spring. One end of the spring is fixedly connected to the support rail 43, and the other end is fixedly connected to the positioning frame 6. The elastic member 62 is in a deformed state and applies a downward thrust to the positioning frame 6. The upper end of the lifting plate 522 is fixedly connected with a pushing block 524. The lower end of the positioning frame 6 passes through the support rail 43 and faces the pushing block 524.

[0046] Reference Figure 2 and Figure 5 In the initial state, the positioning rod 61 sequentially passes through the connection holes 411 of all the obstacle blocks 41 and fits against the inner wall of the connection hole 411. At this time, the connecting rod does not contact any of the obstacle blocks 41. The positioning rod 61 cooperates with the support rail 43 to limit the movement of the obstacle blocks 41. When it is necessary to move the obstacle blocks 41, the lifting plate 522 drives the connecting rod to rise. The pushing block 524 moves synchronously with the lifting plate 522 and gradually approaches the positioning frame 6. After the pushing block 524 contacts the positioning frame 6, it pushes the positioning frame 6 upward, causing the positioning frame 6 to drive the positioning rod 61 to separate from the obstacle blocks 41 one by one from bottom to top. When the connecting rod enters the connection hole 411 of any obstacle block 41, the positioning rod 61 moves out of the positioning hole 412 of the corresponding obstacle block 41.

[0047] The implementation principle of a damper working simulation detection device according to an embodiment of the present application is as follows: Install the damper to be detected on the damper mounting bracket 23, install the counterweight 24, so that the support arm 2 applies a force to the detection wheel 21 and the damper through the simulation suspension 22. Drive the support arm 2 to rotate through the rotating member, so that the support arm 2 drives the detection wheel 21 to move along the detection trajectory. During the detection process, move the plugging rod 54 to make any obstacle block 41 enter or leave the detection trajectory. When the detection wheel 21 contacts the obstacle block 41, undulations occur, causing the external force borne by the damper to change. When the obstacle block 41 drives the support plate 42 away from the detection trajectory, the through groove 431 of the support rail 43 contacts the detection trajectory, and the detection wheel 21 sinks when passing through the through groove 431. The undulation height and frequency of the detection wheel 21 can be adjusted randomly, which is conducive to simulating the actual working conditions of the damper, making the test results close to the actual driving conditions of the vehicle, and improving the test accuracy.

[0048] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A damper operation simulation detection device, comprising a detection platform (1), characterized in that: Also includes: A support arm (2), the support arm (2) is located at the upper end of the detection platform (1) and is rotatably connected to the detection platform (1) in the transverse direction, and the detection platform (1) is provided with a driving member (11) for driving the support arm (2) to rotate; a detection wheel (21), located at an end of the support arm (2) away from its own rotation axis, the support arm (2) is provided with a simulated suspension (22) for mounting the detection wheel (21), and a damper mounting frame (23) is provided at one end of the support arm (2) close to the simulated suspension (22), and the damper to be detected is mounted on the damper mounting frame (23). 3) and the simulated suspension (22); an annular test belt (3) located at the lower end of the test platform (1) and arranged circumferentially around the test platform (1); a detection track is arranged circumferentially on the upper end surface of the annular test belt (3); when the support arm (2) is in operation, the detection wheel (21) is driven to move along the detection track; a plurality of obstacle simulation pieces (4) are evenly arranged circumferentially along the annular test belt (3) and protrude in a direction close to the support arm (2); the annular test belt (3) is provided with an adjustment mechanism for driving the obstacle simulation piece (4) to enter or leave the detection track.

2. A damper operation simulation detection device according to claim 1, characterized in that: The obstacle simulation component (4) comprises a plurality of obstacle blocks (41), all of which are located at the upper end of the annular test belt (3) and protrude in a direction close to the support arm (2), and the distances between all of the obstacle blocks (41) in the same obstacle simulation component (4) and the support arm (2) are different. The test bench is provided with a support rail (43) along the diameter direction of the annular test belt (3), and all of the obstacle blocks (41) in the same obstacle simulation component (4) are slidably connected to the support rail (43) along the length direction of the support rail (43), and the support rail (43) is provided with a through groove (431) for avoiding the obstacle blocks (41), and all of the obstacle blocks (41) on the same support rail (43) are sequentially sleeved from bottom to top, and the adjustment mechanism is used to drive any obstacle block (41) to move along the support rail (43).

3. A damper operation simulation detection device according to claim 2, characterized in that: A support plate (42) is fixedly provided on one side of the obstacle block (41) close to the axis of the annular test belt (3); the support plate (42) is slidably connected to the support rail (43) along the length direction of the support rail (43); all the support plates (42) are located in the through groove (431), and the upper end surfaces of the support plates (42) are flush with the upper end surface of the annular test belt (3); and any two adjacent support plates (42) in the same support rail (43) fit each other.

4. A damper operation simulation detection device according to claim 2, characterized in that: The adjusting mechanism comprises a pushing member (51), a lifting member (52), a moving block (53) and a plug-in rod (54); the moving block (53) is located at the lower end of all the obstacle blocks (41) and is slidably connected to the support rail (43) along the length direction of the support rail (43); the pushing member (51) is fixed to one end of the support rail (43) and is used to drive the moving block (53) to move; the plug-in rod (54) vertically passes through the moving block (53) and is slidably connected to the moving block (53); the lifting member (52) is arranged at the lower end of the support rail (43) and is used to drive the plug-in rod (54) to move up and down; all the obstacle blocks (41) are vertically opened with a connecting hole (411); the connecting hole (411) is located above the plug-in rod (54) and is adapted to the plug-in rod (54).

5. A damper operation simulation detection device according to claim 4, characterized in that: The lifting member (52) comprises a lifting motor (521) and a lifting plate (522); the lifting plate (522) is located at the lower end of the support rail (43) and is slidably connected to the support rail (43) in the vertical direction; the lifting motor (521) is fixedly arranged at the lower end of the support rail (43) and is used to drive the lifting plate (522) to move; the plug-in rod (54) is located at the upper end of the lifting plate (522) and moves synchronously with the lifting plate (522); the lifting plate (522) is provided with a moving groove (523) along the length direction of the support rail (43); the plug-in rod (54) is slidably connected to the lifting plate (522) along the length direction of the moving groove (523).

6. A damper operation simulation detection device according to claim 5, characterized in that: The support rail (43) is slidably connected to a positioning frame (6) in the vertical direction, and the positioning frame (6) is fixedly connected to a positioning rod (61) in the vertical direction. All obstacle blocks (41) are provided with positioning holes (412) adapted to the positioning rod (61) in the vertical direction. When the obstacle block (41) is located at the end of the support rail (43) away from the axis of the annular test belt (3), its positioning hole (412) is directly opposite to the positioning rod (61). The upper end of the lifting plate (522) is fixedly connected to a pushing block (524) directly opposite to the abutting block. The lower end of the positioning frame (6) passes through the support rail (43) and is directly opposite to the pushing block (524). An elastic member (62) is provided between the positioning frame (6) and the support rail (43). The elastic member (62) is used to apply a thrust to the positioning frame (6) to approach the pushing block (524).

7. A damper operation simulation detection device according to claim 1, characterized in that: The annular test strip (3) comprises an annular lifting frame (31) and a plurality of sector plates (32). The annular lifting frame (31) is slidably connected to the detection platform (1) in the vertical direction. The detection platform (1) is provided with a power member for driving the annular lifting frame (31) to perform reciprocating motion in the vertical direction. The plurality of sector plates (32) are arranged circumferentially along the annular lifting frame (31) and are slidably connected to the annular lifting frame (31) in the circumferential direction. The support rail (43) is located between any two adjacent sector plates (32). The support rail (43) is rotatably connected to the detection platform (1) around the axis of the annular lifting frame (31). The upper end of the support rail (43) is fixedly connected to sector blocks (432) on both sides in the width direction. The sector plates (32) on both sides of the support rail (43) are in contact with the sector blocks (432).

8. The damper operation simulation detection device according to claim 1, characterized in that: The detection platform (1) is coaxially rotatable with a central rotating shaft (12), the driving member (11) is used to drive the central rotating shaft (12) to rotate, the upper end of the central rotating shaft (12) is coaxially fixed with a polygonal column (13), one end of the support arm (2) close to the central rotating shaft (12) is sleeved on the outside of the polygonal column (13) and is slidably connected to the polygonal column (13) along the axial direction of the polygonal column (13), the central rotating shaft (12) drives the support arm (2) to rotate through the polygonal column (13), and the upper end of the support arm (2) is detachably connected with a plurality of counterweight blocks (24).

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