A detection device for a magnetorheological shock absorber

Abstract

The present invention discloses a detection device for a magnetorheological shock absorber, which includes a detection body. An elevating assembly is movably installed at the top of the detection body. A detection assembly is fixedly installed at the bottom end inside the detection body. A bottom fixing member is arranged at the top of the detection assembly. A temperature detection device is fixedly installed on one side inside the elevating assembly. A shock absorber body is detachably installed between the elevating assembly and the bottom fixing member. In the above solution, by setting a glass cover and a temperature controller, the temperature change of the shock absorber body during the detection process is controlled, so as to detect the performance change of the shock absorber body, make the device applicable to detections under different environmental conditions, further accurately simulate the use scenario, reduce the generation of noise, make the device operate more smoothly, judge the influence of the self-temperature change of the shock absorber body on its performance after long-term operation, more accurately detect the performance of the shock absorber body, and further improve the detection accuracy of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetorheological shock absorbers, and more specifically, to a detection device for a magnetorheological shock absorber. Background Art

[0002] A magnetorheological shock absorber is a device that utilizes magnetorheological fluid (MR fluid) to achieve controllable damping. Magnetorheological fluid is an intelligent fluid suspended with tiny magnetic particles, which can rapidly change its rheological properties under the action of an external magnetic field, thus realizing the conversion from a liquid state to a semi-solid state. Magnetorheological shock absorbers are mainly applied to occasions where dynamic damping force adjustment is required, such as automotive suspension systems, building shock absorption devices, and industrial machinery.

[0003] In the research and development of a vehicle rollover prevention control system using magnetorheological shock absorbers, it is necessary to test the performance of the magnetorheological shock absorbers, which is an important link in the modeling of the entire actuator - the magnetorheological shock absorber. Therefore, it is necessary to develop a performance test bench for automotive magnetorheological shock absorbers. However, the existing detection devices have a single function and can only detect under normal temperature conditions. In actual use, magnetorheological shock absorbers will be used in different regions and environments, such as in the hot southern regions and the cold northern regions. Therefore, they cannot accurately simulate the influence of different temperatures on magnetorheological shock absorbers, cannot accurately simulate the usage scenarios, and at the same time, cannot detect the performance changes of magnetorheological shock absorbers under their own temperature changes during long-term use. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a detection device for a magnetorheological shock absorber, which can be applicable to detections under different environmental conditions, thereby more accurately simulating the usage scenarios, reducing the generation of noise, making the device operate more smoothly, improving the detection accuracy of the device, more accurately detecting the performance of the shock absorber body, and further improving the detection precision of the device to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A detection device for a magnetorheological shock absorber, including a detection body, on the top of the detection body, a lifting assembly is movably installed, at the bottom end inside the detection body, a detection assembly is fixedly installed, on the top of the detection assembly, a bottom fixing member is provided, on one side inside the lifting assembly, a temperature detection device is fixedly installed, and between the lifting assembly and the bottom fixing member, a shock absorber body is detachably installed;

[0006] The detection body includes a temperature control box body. Support feet are fixedly connected to the bottom of the temperature control box body. A glass cover is fixedly connected to the top of the temperature control box body. A glass switch door is arranged on one side of the glass cover. A detection component is fixedly connected inside the temperature control box body. A temperature controller is arranged on one side of the bottom of the temperature control box body. Air outlets are opened at the bottoms of both sides of the top of the temperature control box body under the glass cover. Exhaust vents are opened on both sides of the top of the glass cover. Hydraulic telescopic rods are fixedly connected to both ends of the top of the glass cover. Limit columns are fixedly installed at the tops of both ends inside the glass cover above the detection component. A fan component is arranged at the bottom of the air outlet inside the temperature control box body. A heater and a cooler are arranged inside the temperature control box body and are electrically connected to the temperature controller. The use of the glass cover facilitates the operator's observation while blocking the temperature from the outside. By controlling the temperature controller, the temperature change inside the glass cover is controlled, and then a judgment is made.

[0007] In a preferred embodiment, the detection component includes a fixed box body. A support frame is fixedly installed at one end inside the fixed box body. A rotating motor is fixedly connected inside the support frame. A rotating rod is fixedly installed on one side of the rotating motor. A fixed shaft is fixedly installed at the end of the rotating rod away from the rotating motor. The rotating rod is rotatably installed on one side of the support frame. A push rod is rotatably installed on the outer surface of the fixed shaft. An activity slot is opened at the top of the fixed box body. The push rod is movably sleeved inside the activity slot.

[0008] In a preferred embodiment, the bottom fixing part includes connecting plates fixedly sleeved on the outer surfaces of the lower ends of two limit columns. A positioning rod is fixedly installed on the opposite sides of the two connecting plates. The bottom of the positioning rod is fixedly connected to the top of the fixed box body.

[0009] In a preferred embodiment, a lifting bottom plate is movably sleeved on the outer surfaces of the two positioning rods. A lower clamping part is fixedly connected to the top of the lifting bottom plate. Lower fixing bolts are threadedly connected to both sides of the lower clamping part, and the positions of the two lower fixing bolts on both sides of the lower clamping part correspond to each other. The bottom of the shock absorber body is movably sleeved on the outer surface of the lower fixing bolt.

[0010] In a preferred embodiment, the lifting component includes a lifting plate. Sleeves are fixedly installed on both sides of the lifting plate. The sleeves are movably sleeved on the outer surfaces of the upper ends of the limit columns. The middle part of the bottom surface of the lifting plate is fixedly connected to an upper clamping part. Upper fixing bolts are threadedly connected to both sides of the upper clamping part, and the positions of the two upper fixing bolts on both sides of the lower clamping part correspond to each other.

[0011] In a preferred embodiment, the temperature detection device includes a fixing frame. One end of the top of the lifting plate is fixedly installed with a lifting motor. The fixing frame is fixedly installed at the bottom of the lifting plate on one side of the upper clamping member. The bottom of the lifting motor is provided with a lifting screw rod. The lifting screw rod is rotatably installed inside the fixing frame. The outer surface of the lifting screw rod is threadedly connected with a temperature measuring member. The temperature measuring member is slidably installed inside the fixing frame. The upper fixing bolt is movably sleeved inside one end of the top of the shock absorber body.

[0012] In a preferred embodiment, the temperature measuring member includes a moving block. The moving block is threadedly connected to the outer surface of the lifting screw rod. One side of the moving block is fixedly connected with a connecting frame. A sliding groove is opened on one side of the connecting frame. A limiting rod is fixedly connected inside the sliding groove. The outer surface of the limiting rod is movably sleeved with a lifting block. The lifting block is slidably installed inside the sliding groove. The outer surface of the limiting rod is movably sleeved with a pressing spring. The pressing spring is located between the sliding groove and the lifting block.

[0013] In a preferred embodiment, a transmission rod is rotatably installed at the bottom of the connecting frame. One side of the transmission rod is fixedly installed with a pressing frame. A support rod is rotatably installed at the top of the pressing frame. One end of the support rod away from the pressing frame is rotatably installed with one side of the lifting block.

[0014] In a preferred embodiment, a temperature sensor is fixedly installed at one end of the pressing frame away from the support rod. The temperature sensor is attached to the outer surface of the shock absorber body.

[0015] The technical effects and advantages of the present invention:

[0016] 1. The present invention controls the rotation of the rotating rod through the rotating motor, so that the fixed shaft pushes the lifting bottom plate to lift, and then the lower clamping member pushes the shock absorber body, so that the shock absorber body is squeezed and stretched, and then the shock absorber body is detected. During this process, by setting the glass cover and the temperature controller, the temperature change of the shock absorber body during the detection process is controlled, so as to detect the performance change of the shock absorber body, make the device applicable to the detection under different environmental conditions, and then more accurately simulate the use scenario.

[0017] 2. The present invention sets the lifting bottom plate to lift on the outer surface of the positioning rod. Through the limitation of the positioning rod, the smoothness of the lifting of the lifting bottom plate is improved, the force inclination is avoided, the shock absorber body is damaged, and at the same time, the generation of noise is reduced, the device runs more smoothly, and the detection accuracy of the device is improved.

[0018] 3. By setting up a temperature detection device and using a temperature sensor, the present invention detects the temperature change of the shock absorber body during long-term operation and combines it with the surrounding environment to determine the impact of the temperature change of the shock absorber body on its performance after long-term operation, thereby detecting the performance of the shock absorber body more accurately and further improving the detection accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the structure of the detection body of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the detection component of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the bottom fixing member of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the lifting component of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the temperature detection device of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the temperature measuring member of the present invention.

[0026] Reference numerals are: 1, detection body; 2, lifting component; 3, bottom fixing member; 4, temperature detection device; 5, detection component; 6, shock absorber body; 11, temperature control box; 12, support feet; 13, air outlet; 14, exhaust port; 15, hydraulic telescopic rod; 16, limit post; 17, glass cover; 18, glass switch door; 19, temperature controller; 21, lifting plate; 22, sleeve; 23, upper clamping member; 24, upper fixing bolt; 31, connecting plate; 32, positioning rod; 33, lifting bottom plate; 34, lower clamping member; 35, lower fixing bolt; 41, fixing frame; 42, lifting motor; 43, lifting screw; 44, temperature measuring member; 441, moving block; 442, connecting frame; 443, sliding groove; 444, limiting rod; 445, pressing spring; 446, lifting block; 447, support rod; 448, transmission rod; 449, pressing frame; 4410, temperature sensor; 51, fixing box; 52, support frame; 53, rotating motor; 54, rotating rod; 55, fixing shaft; 56, pushing rod; 57, activity groove. DETAILED DESCRIPTION OF THE INVENTION

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0028] As shown in the attached Figure 1 - attached Figure 3 In an embodiment of the present invention, the rotating rod 54 is rotated by controlling the rotating motor 53, so that the fixed shaft 55 pushes the lifting bottom plate 33 to lift, and then the lower clamping member 34 pushes the shock absorber body 6, so that the shock absorber body 6 is squeezed and stretched, and then the shock absorber body 6 is detected. During this process, by setting the glass cover 17 and the temperature controller 19, the temperature change of the shock absorber body 6 during the detection process is controlled, so as to detect the performance change of the shock absorber body 6.

[0029] A detection device for a magnetorheological shock absorber includes a detection body 1. A lifting assembly 2 is movably installed at the top of the detection body 1. A detection assembly 5 is fixedly installed at the bottom end inside the detection body 1. A bottom fixing member 3 is arranged at the top of the detection assembly 5. A temperature detection device 4 is fixedly installed on one side inside the lifting assembly 2. A shock absorber body 6 is detachably installed between the lifting assembly 2 and the bottom fixing member 3. The detection body 1 includes a temperature control box body 11. Support feet 12 are fixedly connected to the bottom of the temperature control box body 11. A glass cover 17 is fixedly connected to the top of the temperature control box body 11. A glass switch door 18 is arranged on one side of the glass cover 17. The detection assembly 5 is fixedly connected inside the temperature control box body 11. A temperature controller 19 is arranged on one side of the bottom of the temperature control box body 11. Air outlets 13 are opened on both sides of the top of the temperature control box body 11 at the bottom of the glass cover 17. Exhaust vents 14 are opened on both sides of the top of the glass cover 17. Hydraulic telescopic rods 15 are fixedly connected to both ends of the top of the glass cover 17. Limit columns 16 are fixedly installed on the top of the detection assembly 5 at both ends inside the glass cover 17. A fan assembly is arranged at the bottom of the air outlet 13 inside the temperature control box body 11. A heater and a cooler (the cooler can select refrigeration equipment such as a thermoelectric cooler, and the heater can select heating equipment such as a warm air blower and an electric heater, not shown in the figure) are arranged inside the temperature control box body 11 and are electrically connected to the temperature controller 19. The lifting assembly 2 is controlled to lift at the upper end of the limit column 16 through the hydraulic telescopic rod 15, so as to control the distance between the upper clamping member 23 and the lower clamping member 34, so that the detection device can be adapted to shock absorber bodies 6 of different lengths and sizes, and the adaptation range of the device is improved.

[0030] Using the thermostat 19, the temperature inside the temperature control box 11 is regulated, and through the fan assembly, the temperature inside the glass cover 17 is raised or lowered, thereby controlling the change of the working environment of the shock absorber body 6, so as to detect the change of the performance of the shock absorber body 6 under different environments.

[0031] As shown in the Figure 3 accompanying drawings, the detection assembly 5 includes a fixed box body 51. One end inside the fixed box body 51 is fixedly installed with a support frame 52. Inside the support frame 52 is fixedly connected with a rotary motor 53. One side of the rotary motor 53 is fixedly installed with a rotating rod 54. The end of the rotating rod 54 far from the rotary motor 53 is fixedly installed with a fixed shaft 55. The rotating rod 54 is rotatably installed on one side of the support frame 52. The outer surface of the fixed shaft 55 is rotatably installed with a push rod 56. The top of the fixed box body 51 is provided with a movable groove 57. The push rod 56 is movably sleeved inside the movable groove 57. Embodiment 2

[0032] As Figures 1-4 an embodiment of the present invention, when the push rod 56 pushes the lifting bottom plate 33 to lift and lower, it is easy for the lifting bottom plate 33 to deviate during lifting and lowering. By setting the lifting bottom plate 33 to lift and lower on the outer surface of the positioning rod 32, through the limitation of the positioning rod 32, the smoothness of the lifting and lowering of the lifting bottom plate 33 is improved, not only avoiding tilting due to force and damaging the shock absorber body 6, but also reducing the generation of noise.

[0033] As shown in the Figure 4 accompanying drawings, the bottom fixing member 3 includes a connecting plate 31 fixedly sleeved on the outer surface of the lower ends of two limiting columns 16. On the opposite sides of the two connecting plates 31, a positioning rod 32 is fixedly installed. The bottom of the positioning rod 32 is fixedly connected to the top of the fixed box body 51.

[0034] Among them, the outer surface of the two positioning rods 32 is movably sleeved with a lifting bottom plate 33. The top of the lifting bottom plate 33 is fixedly connected with a lower clamping member 34. On both sides of the lower clamping member 34 are threadedly connected with lower fixing bolts 35, and the positions of the two lower fixing bolts 35 on both sides of the lower clamping member 34 correspond to each other. The bottom of the shock absorber body 6 is movably sleeved on the outer surface of the lower fixing bolts 35. Embodiment 3

[0035] As shown in the Figures 1-7 accompanying drawings, as an embodiment of the present invention, by setting the temperature detection device 4, using the temperature sensor 4410, the temperature change of the shock absorber body 6 itself during long-term operation is detected, and combined with the surrounding environment, so as to judge the influence of the temperature change of the shock absorber body 6 itself on the performance of the shock absorber body 6 after long-term operation, and more accurately detect the performance of the shock absorber body 6, improving the detection accuracy of the device.

[0036] As shown in the Figures 1-7As shown in the figure, the lifting assembly 2 includes a lifting plate 21. Sleeve pipes 22 are fixedly installed on both sides of the lifting plate 21. The sleeve pipes 22 are movably sleeved on the outer surface of the upper end of the limit posts 16. The middle of the bottom surface of the lifting plate 21 is fixedly connected with an upper clamping member 23. Upper fixing bolts 24 are threadedly connected to both sides of the upper clamping member 23. The positions of the two upper fixing bolts 24 correspond to the two sides of the lower clamping member 34.

[0037] Among them, the temperature detection device 4 includes a fixing frame 41. A lifting motor 42 is fixedly installed at one end of the top of the lifting plate 21. The fixing frame 41 is fixedly installed at the bottom of the lifting plate 21 on one side of the upper clamping member 23. A lifting screw rod 43 is arranged at the bottom of the lifting motor 42. The lifting screw rod 43 is rotatably installed inside the fixing frame 41. A temperature measuring member 44 is threadedly connected to the outer surface of the lifting screw rod 43. The temperature measuring member 44 is slidably installed inside the fixing frame 41. The upper fixing bolt 24 is movably sleeved inside one end of the top of the shock absorber body 6.

[0038] By setting the lifting motor 42 to control the rotation of the lifting screw rod 43, the temperature measuring member 44 is lifted and lowered inside the fixing frame 41, so that the temperature measuring member 44 is lifted to different heights, and different heights of the shock absorber body 6 can be detected, and the temperature of the outer surface of the shock absorber body 6 during work can be accurately judged.

[0039] Among them, the temperature measuring member 44 includes a moving block 441. The moving block 441 is threadedly connected to the outer surface of the lifting screw rod 43. One side of the moving block 441 is fixedly connected with a connecting frame 442. A sliding groove 443 is opened on one side of the connecting frame 442. A limiting rod 444 is fixedly connected inside the sliding groove 443. A lifting block 446 is movably sleeved on the outer surface of the limiting rod 444. The lifting block 446 is slidably installed inside the sliding groove 443. A pressing spring 445 is movably sleeved on the outer surface of the limiting rod 444. The pressing spring 445 is located between the sliding groove 443 and the lifting block 446.

[0040] By setting the pressing spring 445, and under the action of the transmission rod 448, the pressing frame 449 rotates at the bottom of the connecting frame 442, and the pressing spring 445 presses the lifting block 446. Through the support of the support rod 447, the pressing frame 449 rotates, and the temperature sensor 4410 always fits on the outer surface of the shock absorber body 6. And through the action of the pressing spring 445, the shock absorber body 6 is buffered, avoiding the shock absorber body 6 from shaking due to the push of the lifting bottom plate 33, which affects the detection accuracy of the temperature sensor 4410. And the temperature detection device 4 is buffered as the shock absorber body 6 shakes, avoiding damage to the temperature detection device 4.

[0041] Among them, a transmission rod 448 is rotatably installed at the bottom of the connecting frame 442. A pressing frame 449 is fixedly installed on one side of the transmission rod 448. A support rod 447 is rotatably installed at the top of the pressing frame 449. One end of the support rod 447 away from the pressing frame 449 is rotatably installed with one side of the lifting block 446.

[0042] Among them, a temperature sensor 4410 is fixedly installed at one end of the pressing frame 449 away from the support rod 447. The temperature sensor 4410 is attached to the outer surface of the shock absorber body 6.

[0043] The working principle of the present invention: When in use, open the glass switch door 18, place the upper and lower ends of the shock absorber body 6 inside the upper clamping member 23 and the lower clamping member 34 respectively, and fix the shock absorber body 6 inside the lower clamping member 34 and the upper clamping member 23 respectively by rotating the upper fixing bolt 24 and the lower fixing bolt 35. Control the rotation of the rotating rod 54 through the rotating motor 53, so that the fixed shaft 55 pushes the lifting bottom plate 33 to rise and fall, and then the lower clamping member 34 pushes the shock absorber body 6, so that the shock absorber body 6 is squeezed and stretched, and then the shock absorber body 6 is detected;

[0044] During this process, use the temperature controller 19 to regulate the temperature inside the temperature control box 11, and through the fan assembly, make the temperature inside the glass cover 17 rise or fall, and then control the change of the working environment of the shock absorber body 6, so as to detect the change of the performance of the shock absorber body 6 under different environments;

[0045] By setting the temperature detection device 4, using the temperature sensor 4410, detect the temperature change of the shock absorber body 6 itself during long-term operation, and combine it with the surrounding environment, and then judge the influence of the temperature change of the shock absorber body 6 itself on the performance of the shock absorber body 6 after long-term operation, and more accurately detect the performance of the shock absorber body 6, improving the detection accuracy of the device.

[0046] Finally, several points should be noted: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detection device for a magnetorheological shock absorber, comprising a detection body (1), characterized in that, At the top of the detection body (1), a lifting component (2) is movably installed. At the bottom end inside the detection body (1), a detection component (5) is fixedly installed. At the top of the detection component (5), a bottom fixing part (3) is provided. On one side inside the lifting component (2), a temperature detection device (4) is fixedly installed. A shock absorber body (6) is detachably installed between the lifting component (2) and the bottom fixing part (3). The detection body (1) includes a temperature control box body (11). At the bottom of the temperature control box body (11), support feet (12) are fixedly connected. At the top of the temperature control box body (11), a glass cover (17) is fixedly connected. On one side of the glass cover (17), a glass switch door (18) is provided. Inside the temperature control box body (11), a detection component (5) is fixedly connected. On one side at the bottom of the temperature control box body (11), a temperature controller (19) is provided. On both sides at the top of the temperature control box body (11) and at the bottom of the glass cover (17), air outlets (13) are provided. On both sides at the top of the glass cover (17), air exhaust ports (14) are provided. At both ends at the top of the glass cover (17), hydraulic telescopic rods (15) are fixedly connected. At both ends inside the glass cover (17) and at the top of the detection component (5), limit columns (16) are fixedly installed. Inside the temperature control box body (11) and at the bottom of the air outlet (13), a fan component is provided. Inside the temperature control box body (11), a heater and a cooler are provided and are electrically connected to the temperature controller (19). The lifting component (2) includes a lifting plate (21). On both sides of the lifting plate (21), sleeves (22) are fixedly installed. The sleeves (22) are movably sleeved on the outer surface of the upper end of the limit column (16). In the middle of the bottom surface of the lifting plate (21), an upper clamping part (23) is fixedly connected. On both sides of the upper clamping part (23), upper fixing bolts (24) are threadedly connected. The positions of the two upper fixing bolts (24) correspond to both sides of the lower clamping part (34). The temperature detection device (4) includes a fixing frame (41). At one end of the top of the lifting plate (21), a lifting motor (42) is fixedly installed. The fixing frame (41) is fixedly installed at the bottom of the lifting plate (21) and on one side of the upper clamping part (23). At the bottom of the lifting motor (42), a lifting screw rod (43) is provided. The lifting screw rod (43) is rotatably installed inside the fixing frame (41). On the outer surface of the lifting screw rod (43), a temperature measuring part (44) is threadedly connected. The temperature measuring part (44) is slidably installed inside the fixing frame (41). The upper fixing bolt (24) is movably sleeved inside one end at the top of the shock absorber body (6). The temperature measuring member (44) includes a moving block (441), the moving block (441) is threadedly connected to the outer surface of the lifting screw rod (43), one side of the moving block (441) is fixedly connected to a connecting frame (442), a sliding groove (443) is formed on one side of the connecting frame (442), a limiting rod (444) is fixedly connected to the inside of the sliding groove (443), a lifting block (446) is movably sleeved on the outer surface of the limiting rod (444), the lifting block (446) is slidably installed inside the sliding groove (443), a pressing spring (445) is movably sleeved on the outer surface of the limiting rod (444), and the pressing spring (445) is located between the sliding groove (443) and the lifting block (446). A transmission rod (448) is rotatably installed at the bottom of the connecting frame (442), a pressing frame (449) is fixedly installed on one side of the transmission rod (448), a support rod (447) is rotatably installed at the top of the pressing frame (449), and one end of the support rod (447) away from the pressing frame (449) is rotatably installed with one side of the lifting block (446). A temperature sensor (4410) is fixedly installed at one end of the pressing frame (449) away from the support rod (447), and the temperature sensor (4410) is attached to the outer surface of the shock absorber body (6).

2. The detection device for a magnetorheological shock absorber according to claim 1, characterized in that: The detection assembly (5) includes a fixed box body (51), a support frame (52) is fixedly installed at one end inside the fixed box body (51), a rotary motor (53) is fixedly connected to the inside of the support frame (52), a rotating rod (54) is fixedly installed on one side of the rotary motor (53), a fixed shaft (55) is fixedly installed at one end of the rotating rod (54) away from the rotary motor (53), the rotating rod (54) is rotatably installed on one side of the support frame (52), a push rod (56) is rotatably installed on the outer surface of the fixed shaft (55), and a moving groove (57) is formed on the top of the fixed box body (51), and the push rod (56) is movably sleeved inside the moving groove (57).

3. The detection device for a magnetorheological shock absorber according to claim 2, characterized in that: The bottom fixing member (3) includes a connecting plate (31) fixedly sleeved on the outer surface of the lower ends of two limiting columns (16), a positioning rod (32) is fixedly installed on the opposite sides of the two connecting plates (31), and the bottom of the positioning rod (32) is fixedly connected to the top of the fixed box body (51).

4. The detection device for a magnetorheological shock absorber according to claim 3, characterized in that: A lifting bottom plate (33) is movably sleeved on the outer surfaces of the two positioning rods (32), a lower clamping member (34) is fixedly connected to the top of the lifting bottom plate (33), lower fixing bolts (35) are threadedly connected to both sides of the lower clamping member (34), and the positions of the two lower fixing bolts (35) on both sides of the lower clamping member (34) correspond to each other, and the bottom of the shock absorber body (6) is movably sleeved on the outer surface of the lower fixing bolts (35).

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