Testing equipment and testing method for magnetorheological damper

Abstract

The invention relates to testing equipment and a testing method for a magneto-rheological shock absorber, the equipment comprises a supporting part and a connecting part, the supporting part is arranged on a testing platform, and the connecting part is used for connecting the supporting part and the magneto-rheological shock absorber; the stress angle adjusting component is provided with an inclined stress surface, a locking assembly is arranged between the stress angle adjusting component and the supporting component, and the locking assembly is used for limiting relative rotation between the stress angle adjusting component and the supporting component; the jacking and rotating mechanism is used for jacking the stress angle adjusting component to unlock the locking assembly and rotating the stress angle adjusting component; and the pressure output mechanism is used for applying pressure to the stress surface. Due to the inclined stress surface arranged on the stress angle adjusting component, the stress angle adjusting component is jacked and rotated through the jacking and rotating mechanism so as to adjust the stress angle of the magnetorheological damper, and the stress condition of the magnetorheological damper under the real working condition is comprehensively simulated by adjusting the stress angle of the magnetorheological damper for multiple times.

Description

Technical Field

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

[0002] As an intelligent damper, the magnetorheological shock absorber plays a key role in many fields. It can quickly and reversibly adjust its own damping force according to the change of the external magnetic field, thereby effectively improving the stability and comfort of the system.

[0003] At present, the existing durability test equipment for magnetorheological shock absorbers only conducts force tests on the magnetorheological shock absorber in the vertical direction. However, in the actual working environment, the force borne by the magnetorheological shock absorber does not come only from a single vertical direction, but from multiple directions. This single-direction force test cannot comprehensively simulate the complex force conditions faced by the magnetorheological shock absorber under actual working conditions, resulting in incomplete testing and making it difficult to accurately evaluate its durability and reliability in the real working scenario. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, one of the purposes of the present invention is to provide a test device for a magnetorheological shock absorber, which is used to solve the problem that the existing durability test equipment for magnetorheological shock absorbers cannot comprehensively simulate the complex force conditions faced by the magnetorheological shock absorber under actual working conditions, resulting in inaccurate test results. The second purpose is to provide a test method for a magnetorheological shock absorber.

[0005] To achieve the above purposes and other related purposes, the present invention provides a test device for a magnetorheological shock absorber, including a test platform, on which the magnetorheological shock absorber is positioned and installed, and further including:

[0006] A force transmission mechanism, including a support component and a connection component, the support component is arranged on the test platform, and the connection component is used to connect the support component and the magnetorheological shock absorber;

[0007] A force application angle adjustment component, provided with an inclined force application surface, and a locking component is arranged between the force application angle adjustment component and the support component, and the locking component is used to limit the relative rotation between the force application angle adjustment component and the support component;

[0008] A lifting and rotating mechanism, used to lift the force application angle adjustment component to unlock the locking component and rotate the force application angle adjustment component;

[0009] A pressure output mechanism, used to apply pressure to the force application surface of the force application angle adjustment component, and the pressure application point of the pressure output mechanism coincides with the axis of the force application angle adjustment component.

[0010] Optionally, the lifting and rotating mechanism includes a lifting component and a rotating component. The lifting component includes a lifting part and a lifting driving part, and the rotating component includes a rotating transmission part and a rotating driving part.

[0011] The lifting driving part is used to drive the lifting part to cooperate with the force application angle adjusting part to lift the force application angle adjusting part away from the supporting part, so that the locking component is unlocked.

[0012] The rotating driving part is used to drive the rotating transmission part to cooperate with the force application angle adjusting part to drive the force application angle adjusting part to rotate.

[0013] Optionally, two groups of the lifting components are arranged on the force application angle adjusting part along the radial direction.

[0014] Optionally, the lifting and rotating mechanism further includes a sliding table. The lifting part is slidably arranged on the sliding table, and a wedge surface is arranged on the lifting part. The lifting driving part is arranged on the sliding table. The lifting driving part is used to drive the lifting part to approach or move away from the force application angle adjusting part, and the wedge surface is used to cooperate with the force application angle adjusting part to lift the force application angle adjusting part onto the lifting part.

[0015] Optionally, a gear is arranged on the force application angle adjusting part, the rotating transmission part is a rack, the rotating transmission part and the rotating driving part are both arranged on the lifting part, the rotating transmission part meshes with the gear, and the rotating driving part is used to drive the rotating transmission part to move along its length direction to drive the force application angle adjusting part to rotate.

[0016] Optionally, the locking component includes a plurality of card slots distributed circumferentially along the supporting part, and a clamping part arranged on the force application angle adjusting part. The clamping part is in clamping fit with the card slots.

[0017] Optionally, a bracket is arranged on the supporting part, a telescopic rod is arranged on the bracket, and the telescopic rod is rotatably connected to the force application angle adjusting part.

[0018] Optionally, the connecting component is a hoop, and clamping blocks are symmetrically arranged on the connecting component. The clamping blocks are used to be in clamping fit with the connecting holes of the magnetorheological damper.

[0019] Optionally, a sliding part is arranged on the connecting component, a sliding groove is arranged on the supporting part, and the sliding part is slidably connected to the sliding groove.

[0020] A testing method for a magnetorheological damper, which is applied to the testing equipment for the magnetorheological damper as described above. The method includes:

[0021] Position and install the magnetorheological shock absorber on the test platform;

[0022] Snap-fit the clamping block provided on the connecting component with the connecting hole of the magnetorheological shock absorber;

[0023] Snap-fit the clamping part of the force application angle adjusting component with the clamping groove of the supporting component, so that the magnetorheological shock absorber is in the initial force application angle;

[0024] Apply a preset pressure to the force application surface of the force application angle adjusting component through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at the initial force application angle;

[0025] Separate the force application angle adjusting component from the supporting component through the jacking assembly to release the snap-fit state between the clamping part and the clamping groove;

[0026] After driving the force application angle adjusting component to rotate a preset angle through the rotating assembly, the jacking assembly and the rotating assembly are reset, and the clamping part and the clamping groove resume the snap-fit state, so that the magnetorheological shock absorber is in the current force application angle;

[0027] Apply a preset pressure to the force application surface of the force application angle adjusting component through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at the current force application angle;

[0028] Adjust the force application angle of the magnetorheological shock absorber multiple times through the jacking and rotating mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at different force application angles.

[0029] As described above, the present invention has the following beneficial effects: Due to the inclined force application surface provided on the force application angle adjusting component, when the pressure output mechanism applies pressure to the center point of the inclined force application surface of the force application angle adjusting component, the pressure received by the force application angle adjusting component is transmitted to the magnetorheological shock absorber through the force transmission mechanism; at the point on the force application surface at a lower position, the component force parallel to the inclined surface is relatively large, while the component force perpendicular to the inclined surface is relatively small; at the point on the force application surface at a higher position, the component force perpendicular to the inclined surface is relatively large, and the component force parallel to the inclined surface is relatively small. Therefore, the jacking and rotating mechanism jacks up the force application angle adjusting component to separate it from the supporting component to unlock the locking component. After the force application angle adjusting component and the supporting component are unlocked, the jacking and rotating mechanism drives the force application angle adjusting component and the supporting component to rotate relative to each other. After the rotation is completed, the jacking and rotating mechanism is reset, and the force application angle adjusting component and the supporting component are re-locked, so that the force application angle of the magnetorheological shock absorber can be adjusted. Repeating the above operations multiple times can test multiple force application angles of the magnetorheological shock absorber, and can more comprehensively simulate the force condition of the magnetorheological shock absorber under real working conditions, thereby improving the accuracy of the test results of the durability and reliability of the magnetorheological shock absorber test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic cross-sectional structure diagram showing the test state of the test equipment for the magnetorheological shock absorber shown in the embodiments of the present application;

[0031] Figure 2 A schematic cross-sectional structure diagram showing the jacking state of the test equipment for the magnetorheological shock absorber shown in the embodiments of the present application;

[0032] Figure 3 A schematic structure diagram showing the jacking and rotating mechanism shown in the embodiments of the present application;

[0033] Figure 4 A schematic structure diagram showing the connecting component shown in the embodiments of the present application;

[0034] Figure 5 A schematic structure diagram showing the magnetorheological shock absorber shown in the embodiments of the present application;

[0035] Figure 6 A flowchart showing the test method of the magnetorheological shock absorber shown in the embodiments of the present application.

[0036] DESCRIPTION OF THE REFERENCE NUMERALS

[0037] Supporting component 1, bracket 101, telescopic rod 102, sliding groove 103, connecting component 2, clamping block 201, sliding part 202, force application angle adjusting component 3, force application surface 301, gear 302, locking component 4, clamping groove 401, clamping part 402, jacking component 5, jacking part 501, wedge surface 501a, jacking driving component 502, rotating component 6, rotating transmission component 601, rotating driving component 602, pressure output component 7, shaft part 701, pressure ball 702, sliding table 8, magnetorheological shock absorber 9, connecting hole 901. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0039] Please refer to Figures 1 to 6It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, quantities, and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex. The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0040] Before describing the embodiments of the present invention in detail, the application environment of the present invention will be described first. The technology of the present invention is mainly applied to the technical field of magnetorheological shock absorbers. The present invention is used to solve the problem that the existing durability test equipment for magnetorheological shock absorbers cannot comprehensively simulate the complex stress conditions faced by magnetorheological shock absorbers under actual working conditions, resulting in inaccurate test results.

[0041] Please refer to Figures 1 to 5 As shown, the present invention provides a test device for a magnetorheological shock absorber.

[0042] In an exemplary embodiment of the present application, the test device for a magnetorheological shock absorber includes a test platform. The magnetorheological shock absorber 9 is fixedly installed on the test platform, and further includes:

[0043] A force transmission mechanism, including a support member 1 and a connecting member 2. The support member 1 is disposed on the test platform, and the connecting member 2 is used to connect the support member 1 and the magnetorheological shock absorber;

[0044] A force application angle adjustment member 3, having an inclined force application surface 301. A locking assembly 4 is provided between the force application angle adjustment member 3 and the support member 1, and the locking assembly 4 is used to limit the relative rotation between the force application angle adjustment member 3 and the support member 1;

[0045] A jacking and rotating mechanism, used to jack up the force application angle adjustment member 3 to unlock the locking assembly 4 and rotate the force application angle adjustment member 3;

[0046] A pressure output mechanism is used to apply pressure to the force-bearing surface 301 of the force-bearing angle adjustment component 3, and the pressure application point of the pressure output mechanism coincides with the axis of the force-bearing angle adjustment component 3.

[0047] In this embodiment, due to the inclined force-bearing surface 301 provided on the force-bearing angle adjustment component 3, when the pressure output mechanism applies pressure to the center point of the inclined force-bearing surface 301 of the force-bearing angle adjustment component 3, the pressure received by the force-bearing angle adjustment component 3 is transmitted to the magnetorheological damper 9 through the force transmission mechanism; at the point on the force-bearing surface 301 at a lower position, the component force parallel to the inclined surface is relatively large, while the component force perpendicular to the inclined surface is relatively small; at the point on the force-bearing surface 301 at a higher position, the component force perpendicular to the inclined surface is relatively large, and the component force parallel to the inclined surface is relatively small. Therefore, the force-bearing angle adjustment component 3 is lifted by the lifting and rotating mechanism to be separated from the support component 1, so that the locking component is unlocked. After the force-bearing angle adjustment component 3 and the support component 1 are unlocked, the lifting and rotating mechanism drives the force-bearing angle adjustment component 3 and the support component 1 to rotate relative to each other. After the rotation is completed, the lifting and rotating mechanism resets, and the force-bearing angle adjustment component 3 and the support component 1 are re-locked, so that the force-bearing angle of the magnetorheological damper 9 can be adjusted. By repeating the above operations multiple times, the force-bearing angles of the magnetorheological damper 9 can be tested, and the force-bearing conditions of the magnetorheological damper 9 under real working conditions can be simulated more comprehensively, thereby improving the accuracy of the test results of the durability and reliability of the magnetorheological damper 9 by the test equipment for the magnetorheological damper 9.

[0048] In an exemplary embodiment of the present application, the lifting and rotating mechanism includes a lifting component 5 and a rotating component 6. The lifting component 5 includes a lifting part 501 and a lifting driving part 502, and the rotating component 6 includes a rotating transmission part 601 and a rotating driving part 602;

[0049] The lifting driving part 502 is used to drive the lifting part 501 to cooperate with the force-bearing angle adjustment component 3 to lift the force-bearing angle adjustment component 3 away from the support component 1, so that the locking component 4 is unlocked;

[0050] The rotating driving part 602 is used to drive the rotating transmission part 601 to cooperate with the force-bearing angle adjustment component 3 to drive the force-bearing angle adjustment component 3 to rotate.

[0051] In this embodiment, the lifting driving component 502 drives the lifting component 501 to cooperate with the force application angle adjusting component 3, so that the force application angle adjusting component 3 is disengaged from the supporting component 1. At this time, the locking assembly 4 is in the unlocked state. The rotation driving component 602 drives the rotation transmission component 601 to cooperate with the force application angle adjusting component 3 and drives the force application angle adjusting component 3 to rotate. After rotating a preset angle, the rotation assembly 6 and the lifting assembly 5 are reset in sequence, and the locking assembly 4 between the force application angle adjusting component 3 and the supporting component 1 resumes the locked state to adjust the force application angle of the magnetorheological damper 9. By repeating the angle adjustment multiple times, the force application angles of the magnetorheological damper 9 can be tested, so as to more comprehensively simulate the force application conditions of the magnetorheological damper 9 under actual working conditions and improve the accuracy of the durability test results of the magnetorheological damper 9.

[0052] Exemplarily, the lifting driving component 502 includes but is not limited to a lifting cylinder. The lifting cylinder is arranged on the test platform. The lifting component 501 includes but is not limited to a lifting plate. The lifting plate is connected to the output shaft of the lifting cylinder. The lifting cylinder drives the lifting plate to abut and cooperate with the force application angle adjusting component 3 and lift the force application angle adjusting component 3, so that the force application angle adjusting component 3 is disengaged from the supporting component 1. At this time, the locking assembly 4 is in the unlocked state. The rotation driving component 602 includes but is not limited to a pushing cylinder. The rotation transmission component 601 includes but is not limited to a crank-slider mechanism. The slider is used as the driving member and the crank is used as the driven member, so as to convert the linear motion of the slider into the rotational motion of the crank. The crank is connected to the force application angle adjusting component 3. The pushing cylinder drives the slider to move, and the linear movement of the slider is converted into the rotational motion of the crank through the rotating pair, so as to drive the force application angle adjusting component 3 to rotate to adjust the force application angle of the magnetorheological damper 9.

[0053] In an exemplary embodiment of the present application, two groups of lifting assemblies 5 are arranged on the force application angle adjusting component 3 in the radial direction.

[0054] In this embodiment, by arranging two groups of lifting assemblies 5 on the force application angle adjusting component 3 in the radial direction, it is ensured that the force application angle adjusting component 3 can be smoothly and completely disengaged from the supporting component 1, ensuring that the force application angle adjusting component 3 is in a free state, and the rotation assembly 6 can complete the rotation action on the force application angle adjusting component 3.

[0055] In an exemplary embodiment of the present application, the lifting and rotating mechanism further includes a sliding table 8. The lifting component 501 is slidably arranged on the sliding table 8, and a wedge surface 501a is arranged on the lifting component 501. The lifting driving component 502 is arranged on the sliding table 8. The lifting driving component 502 is used to drive the lifting component 501 to approach or move away from the force application angle adjusting component 3. The wedge surface 501a is used to cooperate with the force application angle adjusting component 3 to lift the force application angle adjusting component 3 onto the lifting component 501.

[0056] In this embodiment, a first slide rail is provided on the sliding table 8. The first slide rail is used to guide the movement of the jacking component 501. The jacking component 501 is driven by a jacking driving component 502 to move along the first slide rail to the lower end of the force-bearing angle adjusting component 3. The wedge surface 501a provided at the front end of the jacking component 501 cooperates with the force-bearing angle adjusting component 3, so as to jack up the force-bearing angle adjusting component 3, make the lower end surface of the force-bearing angle adjusting component 3 located on the upper end surface of the jacking component 501, and the jacking component 501 bears the force-bearing angle adjusting component 3.

[0057] In an exemplary embodiment of the present application, a gear 302 is provided on the force-bearing angle adjusting component 3. The rotary transmission component 601 is a rack. The rotary transmission component 601 and the rotary driving component 602 are both provided on the jacking component 501. The rotary transmission component 601 meshes with the gear 302. The rotary driving component 602 is used to drive the rotary transmission component 601 to move along its length direction to drive the force-bearing angle adjusting component 3 to rotate.

[0058] In this embodiment, a second slide rail is provided on the jacking component 501. The rotary transmission component 601 is slidably connected to the second slide rail, and the second slide rail is used to guide the movement of the rotary transmission component 601. Since the rotary transmission assembly is provided on the jacking component 501, the jacking component 501 is driven by the jacking driving component 502 to move along the first guide rail to the lower end of the force-bearing angle adjusting component 3, so that the force-bearing angle adjusting component 3 is jacked up along the wedge surface 501a to the upper end surface of the jacking component 501, so that the rotary transmission component 601 provided on the upper end surface of the jacking component 501 meshes with the gear 302 provided on the force-bearing angle adjusting component 3. At this time, since the force-bearing angle adjusting component 3 is in a free state and the force-bearing angle adjusting component 3 is in abutting fit with the jacking component 501, the rotary driving component 602 is used to drive the rotary transmission component 601 to move along the second slide rail for guiding, so as to drive the force-bearing angle adjusting component 3 to rotate.

[0059] In an exemplary embodiment of the present application, the locking assembly 4 includes a plurality of card slots 401 distributed circumferentially along the support component 1, and a clamping portion 402 provided on the force-bearing angle adjusting component 3. The clamping portion 402 is in clamping fit with the card slots 401.

[0060] In this embodiment, through the clamping portion 402 provided on the force-bearing angle adjusting component 3 and the card slots 401 provided on the support component 1, quick connection and quick disassembly of the force-bearing angle adjusting component 3 and the support component 1 can be realized, and relative rotation or sliding between the force-bearing angle adjusting component 3 and the support component 1 during testing can be restricted, ensuring the smoothness of the testing process.

[0061] In an exemplary embodiment of the present application, a bracket 101 is provided on the support member 1, and a telescopic rod 102 is provided on the bracket 101. The telescopic rod 102 is rotatably connected to the force application angle adjustment member 3.

[0062] In this embodiment, by providing the bracket 101 for carrying and installing the telescopic rod 102 on the support member 1 and rotatably connecting the telescopic rod 102 to the center position of the lower end surface of the force application angle adjustment member 3 through a bearing or a spherical hinge, it is possible to effectively prevent the force application angle adjustment member 3 from shifting during the jacking or rotation process, thereby improving the accuracy of the test results.

[0063] It should be noted that the connection mode between the telescopic rod 102 and the force application angle adjustment member 3 is a detachable rotational connection. On the one hand, it is convenient for maintenance and replacement after the force application angle adjustment member 3 is damaged; on the other hand, according to the test requirements, angle adjustment blocks with different inclination angles can be replaced to meet a wider range of test requirements. Optionally, the inclination angle of the force application surface 301 of the force application angle adjustment member 3 is 2° to 10°.

[0064] In an exemplary embodiment of the present application, the connection member 2 is a hoop, and clamping blocks 201 are symmetrically provided on the connection member 2. The clamping blocks 201 are used for clamping and cooperating with the connection holes 901 of the magnetorheological damper 9.

[0065] In this embodiment, in combination with the connection holes 901 on the magnetorheological damper 9, by providing the clamping blocks 201 on the connection member 2 that are inserted into the connection holes 901, the test equipment is stably positioned and connected to the magnetorheological damper 9, avoiding the shaking phenomenon of the test equipment during the test, and thus avoiding the problem of unstable test results.

[0066] In an exemplary embodiment of the present application, a sliding portion 202 is provided on the connection member 2, and a sliding groove 103 is provided on the support member 1. The sliding portion 202 is slidably connected to the sliding groove 103.

[0067] In this embodiment, by providing the sliding portion 202 on the connection member 2 that is slidably connected to the sliding groove 103 of the support member 1, the connection member 2 and the support member 1 can be quickly disassembled and assembled. At the same time, when the size of the connection holes 901 on the magnetorheological damper 9 to be tested changes, different models of connection members 2 can also be replaced to adapt to the connection holes 901 of the magnetorheological damper 9, thereby improving the versatility of the test equipment.

[0068] It should be noted that the sliding groove 103 includes but is not limited to being set as a dovetail groove or a T-shaped groove. Correspondingly, the sliding portion 202 includes but is not limited to being set as a dovetail structure or a T-shaped structure.

[0069] Please refer to Figure 6 As shown, the present application also proposes a test method for a magnetorheological damper.

[0070] In an exemplary embodiment of the present application, the testing method of the magnetorheological shock absorber at least includes steps S110 to S180.

[0071] In step S110, the magnetorheological shock absorber is positioned and installed on the test platform.

[0072] In step S120, the clamping block 201 provided on the connecting member 2 is clamped and matched with the connecting hole 901 of the magnetorheological shock absorber 9.

[0073] Exemplarily, the connecting member 2 includes two arc-shaped plates. Both arc-shaped plates are provided with a clamping block 201 and a sliding portion 202. The connecting member 2 is connected to the supporting member 1 through the sliding portion 202. By clamping the clamping block 201 into the connecting hole 901 of the magnetorheological shock absorber 9, the magnetorheological shock absorber 9 is connected to the force transmission mechanism. The two arc-shaped plates are locked by a locking member, so that the test equipment is stably positioned and connected to the magnetorheological shock absorber 9.

[0074] In step S130, the clamping portion 402 of the force application angle adjusting member 3 is clamped and matched with the card slot 401 of the supporting member 1, so that the magnetorheological shock absorber 9 is in the initial force application angle.

[0075] Exemplarily, through the clamping and matching of the clamping portion 402 and the card slot 401, the connection between the force application angle adjusting member 3 and the supporting member 1 is realized, and the rotation or displacement between the force application angle adjusting member 3 and the supporting member 1 during the test can be restricted.

[0076] In step S140, a preset pressure is applied to the force application surface 301 of the force application angle adjusting member 3 through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological shock absorber 9 at the initial force application angle.

[0077] Exemplarily, due to the inclined force application surface 301 provided on the force application angle adjusting member 3, when the pressure output mechanism applies pressure to the center point of the inclined force application surface 301 of the force application angle adjusting member 3, at the point on the force application surface 301 at a lower position, the component force parallel to the inclined surface is relatively large, and the component force perpendicular to the inclined surface is relatively small; at the point on the force application surface 301 at a higher position, the component force perpendicular to the inclined surface is relatively large, and the component force parallel to the inclined surface is relatively small; therefore, the force application angle of the magnetorheological shock absorber 9 can be adjusted by rotating the force application angle adjusting member 3.

[0078] In step S150, the force application angle adjusting member 3 is separated from the supporting member 1 through the jacking assembly 5 to release the clamped state of the clamping portion 402 and the card slot 401.

[0079] Exemplarily, the force application angle adjustment component 5 disengages the force application angle adjustment component 3 from the support component 1, placing the force application angle adjustment component 3 in a free state, facilitating the rotation component 6 to drive the force application angle adjustment component 3 to rotate, so as to adjust the force application angle of the magnetorheological damper 9.

[0080] In step S160, after the rotation component 6 drives the force application angle adjustment component 3 to rotate a preset angle, the lifting component 5 and the rotation component 6 reset, and the clamping portion 402 and the card slot 401 resume the clamped state, placing the magnetorheological damper 9 in the current force application angle.

[0081] Exemplarily, the rotation component 6 is driven to rotate the force application angle adjustment component 3 multiple times to adjust the force application angle of the magnetorheological damper 9, enabling the magnetorheological damper 9 to achieve 360° angle adjustment in different force application directions, so as to simulate the complex force application conditions faced by the magnetorheological damper 9 in actual working conditions, thereby achieving a more comprehensive test.

[0082] In step S170, a preset pressure is applied to the force application surface 301 of the force application angle adjustment component 3 through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological damper 9 at the current force application angle.

[0083] Exemplarily, the pressure output mechanism includes a pressure driving component and a pressure output component 7. The pressure driving component is used to drive the pressure output component 7 to apply pressure to the force application angle adjustment component 3. The pressure output component 7 includes a shaft portion 701 and a pressure ball 702. The shaft portion 701 connects the pressure driving component and the pressure ball 702. The pressure ball 702 contacts the center point of the force application surface 301, and pressure is applied to the force application angle adjustment component 3 through the pressure ball 702, enabling the pressure output mechanism to adapt to changes in the angle of the force application angle adjustment component 3 in different directions.

[0084] In step S180, the force application angle of the magnetorheological damper 9 is adjusted multiple times through the lifting and rotation mechanism to test the non-linear pressure performance of the magnetorheological damper 9 at different force application angles.

[0085] Working principle: Due to the inclined force-bearing surface 301 provided on the force-bearing angle adjustment component 3, when the pressure output mechanism applies pressure to the center point of the inclined force-bearing surface 301 of the force-bearing angle adjustment component 3, the pressure received by the force-bearing angle adjustment component 3 is transmitted to the magnetorheological shock absorber 9 through the force transmission mechanism; at the point on the force-bearing surface 301 that is at a lower position, the component force parallel to the inclined surface is relatively large, while the component force perpendicular to the inclined surface is relatively small; at the point on the force-bearing surface 301 that is at a higher position, the component force perpendicular to the inclined surface is relatively large, and the component force parallel to the inclined surface is relatively small. Therefore, the force-bearing angle adjustment component 3 is lifted by the jacking and rotating mechanism to be separated from the support component 1 so that the locking component is unlocked. After the force-bearing angle adjustment component 3 and the support component 1 are unlocked, the jacking and rotating mechanism drives the force-bearing angle adjustment component 3 and the support component 1 to rotate relative to each other. After the rotation is completed, the jacking and rotating mechanism resets, and the force-bearing angle adjustment component 3 and the support component 1 are re-locked, so that the force-bearing angle of the magnetorheological shock absorber 9 can be adjusted. By repeating the above operations multiple times, the force-bearing angles of the magnetorheological shock absorber 9 can be tested, and the force-bearing conditions of the magnetorheological shock absorber 9 under real working conditions can be simulated more comprehensively, thereby improving the accuracy of the test results of the durability and reliability of the magnetorheological shock absorber 9 by the test equipment for the magnetorheological shock absorber 9.

[0086] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A testing device for a magnetorheological shock absorber, comprising a testing platform, wherein the magnetorheological shock absorber is positioned and installed on the testing platform, and is characterized in that, It further includes: A force transmission mechanism, including a support component and a connection component. The support component is arranged on the test platform, and the connection component is used to connect the support component and the magnetorheological shock absorber; A force application angle adjustment component, provided with an inclined force application surface. A locking component is arranged between the force application angle adjustment component and the support component, and the locking component is used to limit the relative rotation between the force application angle adjustment component and the support component; A jacking and rotating mechanism, used to jack up the force application angle adjustment component to unlock the locking component and rotate the force application angle adjustment component; A pressure output mechanism, used to apply pressure to the force application surface of the force application angle adjustment component, and the pressure application point of the pressure output mechanism coincides with the axis of the force application angle adjustment component.

2. The testing device for the magnetorheological shock absorber according to claim 1, characterized in that: The jacking and rotating mechanism includes a jacking component and a rotating component. The jacking component includes a jacking part and a jacking driving part, and the rotating component includes a rotating transmission part and a rotating driving part; The jacking driving part is used to drive the jacking part to cooperate with the force application angle adjustment component to jack up the force application angle adjustment component to disengage from the support component, so as to unlock the locking component; The rotating driving part is used to drive the rotating transmission part to cooperate with the force application angle adjustment component to drive the force application angle adjustment component to rotate.

3. The test device for the magnetorheological shock absorber according to claim 2, wherein: Two groups of the jacking components are arranged along the radial direction of the force application angle adjustment component.

4. The testing device for the magnetorheological shock absorber according to claim 3, characterized in that: The jacking and rotating mechanism further includes a sliding table. The jacking part is slidably arranged on the sliding table, and a wedge surface is arranged on the jacking part. The jacking driving part is arranged on the sliding table. The jacking driving part is used to drive the jacking part to approach or move away from the force application angle adjustment component, and the wedge surface is used to cooperate with the force application angle adjustment component to jack up the force application angle adjustment component onto the jacking part.

5. The test device for a magnetorheological shock absorber according to claim 4, characterized in that: A gear is arranged on the force application angle adjustment component. The rotating transmission part is a rack. The rotating transmission part and the rotating driving part are both arranged on the jacking part. The rotating transmission part meshes with the gear, and the rotating driving part is used to drive the rotating transmission part to move along its length direction to drive the force application angle adjustment component to rotate.

6. The test device for the magnetorheological shock absorber according to claim 1, characterized in that: The locking component includes a plurality of card slots distributed circumferentially along the support component, and a clamping part arranged on the force application angle adjustment component. The clamping part is in clamping cooperation with the card slots.

7. The test device for the magnetorheological shock absorber according to claim 6, characterized in that: A bracket is arranged on the support component, and a telescopic rod is arranged on the bracket. The telescopic rod is rotatably connected to the force application angle adjustment component.

8. The test device for a magnetorheological shock absorber according to claim 1, characterized in that: The connection component is a hoop, and clamping blocks are symmetrically arranged on the connection component. The clamping blocks are used to be in clamping cooperation with the connection holes of the magnetorheological shock absorber.

9. The test device for the magnetorheological shock absorber according to claim 8, characterized in that: A sliding part is arranged on the connection component, and a sliding groove is arranged on the support component. The sliding part is slidably connected to the sliding groove.

10. A testing method for a magnetorheological shock absorber, applied to a testing device for the magnetorheological shock absorber according to any one of claims 1-9, characterized in that, The method includes: Positionally install the magnetorheological shock absorber on the test platform; Clamp the clamping blocks arranged on the connection component with the connection holes of the magnetorheological shock absorber in a clamping manner; Clamp the clamping part of the force application angle adjustment component with the card slots of the support component so that the magnetorheological shock absorber is at the initial force application angle; Apply a preset pressure to the force-bearing surface of the force-bearing angle adjustment component through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at the initial force-bearing angle; Separate the force-bearing angle adjustment component from the support component through the jacking assembly to release the clamping state between the clamping portion and the card slot; After driving the force-bearing angle adjustment component to rotate a preset angle through the rotation assembly, the jacking assembly and the rotation assembly are reset, and the clamping portion and the card slot resume the clamping state, so that the magnetorheological shock absorber is in the current force-bearing angle; Apply a preset pressure to the force-bearing surface of the force-bearing angle adjustment component through the pressure output mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at the current force-bearing angle; Adjust the force-bearing angle of the magnetorheological shock absorber multiple times through the jacking and rotating mechanism to test the non-linear pressure performance of the magnetorheological shock absorber at different force-bearing angles.

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