A shock absorber testing device

Abstract

This utility model discloses a vibration damper testing device, which includes a frame, a clamping component, and a testing assembly. The clamping component is mounted on the frame and is used to clamp the vibration damper cylinder. The testing assembly includes a slide, an adjustment drive, and a test piece. The slide is slidably mounted on the frame along the axial direction of the vibration damper. The adjustment drive is driven by the slide to adjust the distance between the slide and the clamping component. The test piece is mounted on the slide and is detachably connected to the piston end of the vibration damper. The test piece drives the piston end of the vibration damper to reciprocate. First, the clamping component clamps the vibration damper cylinder. Then, the adjustment drive drives the slide to slide relative to the frame, thereby moving the test piece to the location of the piston end of the vibration damper. The test piece is then connected to the piston end of the vibration damper, thus driving the piston end to reciprocate, thereby testing whether the mechanical characteristics of the vibration damper meet the requirements. Because the distance between the test piece and the clamping component can be adjusted, it can accommodate vibration dampers of different lengths.

Description

Technical Field

[0001] This utility model relates to the field of vibration damper technology, and specifically to a vibration damper testing device. Background Technology

[0002] Shock absorbers are vibration damping devices whose main function is to attenuate vibrations caused by impacts, thereby improving ride comfort and handling safety. To test whether a shock absorber meets standards, its mechanical properties need to be tested.

[0003] Existing vibration damper testing devices can be found in patent application number CN202310004529.X, which includes a mounting bracket, a servo device, and a fixing component. The fixing component is used to fix the vibration damper to the mounting bracket, while the servo device is used to reciprocate and press the piston end of the vibration damper to test its mechanical performance. However, the distance between the fixing component and the servo device is not adjustable, which means it can only be used with vibration dampers of one length, thus limiting the applicability of the vibration damper testing device.

[0004] Therefore, how to adapt the vibration damper testing device to vibration dampers of different lengths is a technical problem that urgently needs to be solved. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a vibration damper testing device to solve the technical problem that existing vibration damper testing devices are difficult to adapt to vibration dampers of different lengths.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a vibration damper testing device, which includes:

[0008] frame;

[0009] A clamping element, mounted on the frame, for clamping the shock absorber cylinder; and

[0010] The test assembly includes a slide, an adjustment drive, and a test piece. The slide is slidably mounted on the frame along the axial direction of the vibration damper. The adjustment drive is mounted on the frame and has an adjustment end that moves relative to the frame. The adjustment end is connected to the slide to adjust the distance between the slide and the clamping member. The test piece is mounted on the slide and is detachably connected to the piston end of the vibration damper. The test piece drives the piston end of the vibration damper to reciprocate.

[0011] In some embodiments, the test piece includes a snap-fit ​​portion and a test hydraulic cylinder. The snap-fit ​​portion is slidably disposed on the slide block and is detachably snap-fitted to the piston end of the shock absorber. The test hydraulic cylinder is drivenly connected to the snap-fit ​​portion to drive the snap-fit ​​portion to reciprocate.

[0012] In some embodiments, the snap-fit ​​portion has a snap-fit ​​groove, and the snap-fit ​​groove has an inlet and outlet arranged radially along the test hydraulic cylinder.

[0013] In some embodiments, a guide cone surface is formed on the inner wall of the slot near the clamping member at one end. The test piece further includes a limiting part, which is installed on the end of the slot away from the clamping member. The limiting part has a first state of pressing against the piston end of the damper and a second state of disengaging from the piston end of the damper.

[0014] In some embodiments, the end of the snap-fit ​​portion opposite to the clamping member has a threaded hole communicating with the snap-fit ​​groove, and the limiting portion includes a bolt, which is screwed into the threaded hole. By adjusting the bolt, the bolt is pressed against or disengaged from the piston end of the shock absorber, so that the limiting portion switches between a first state and a second state.

[0015] In some embodiments, the slide has a mating opening, and the snap-fit ​​portion is movably inserted through the mating opening.

[0016] In some embodiments, the frame has a plurality of guide rods, the slide has a plurality of guide holes, and the guide rods are respectively inserted through the plurality of guide holes.

[0017] In some embodiments, the frame is provided with guide rails, and the slide is slidably disposed on the guide rails.

[0018] In some embodiments, the pitch adjustment drive includes a pitch adjustment hydraulic cylinder, the cylinder body of which is mounted on the frame, and the piston rod of which has the adjustment end.

[0019] In some embodiments, the clamping member includes an openable gripper.

[0020] Compared with the prior art, the vibration damper testing device provided by this utility model has the following advantages:

[0021] First, the damper cylinder is clamped by a clamping device. Then, an adjustable drive mechanism drives a slide block to slide relative to the frame, thereby moving the test piece to the piston end of the damper. The test piece is then connected to the piston end, causing it to reciprocate and test whether the damper's mechanical characteristics meet the requirements. Because the adjustable drive mechanism can move the slide block, adjusting the distance between the test piece and the clamping device, it can accommodate dampers of different lengths. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the vibration damper testing device provided in this embodiment of the utility model;

[0023] Figure 2 This is a partial schematic diagram of the test piece provided in an embodiment of this utility model;

[0024] Figure 3 This is a top view of the slide provided in this embodiment of the utility model;

[0025] Explanation of reference numerals in the attached drawings: frame 100, guide rod 110, guide rail 120, clamping component 200, test assembly 300, slide 310, mating port 311, guide hole 312, distance adjustment drive component 320, distance adjustment hydraulic cylinder 321, test component 330, snap-fit ​​part 331, slot 3311, screw hole 3312, test hydraulic cylinder 332, limiting part 333, bolt 3331. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] To address the technical problem that vibration damper testing devices are difficult to adapt to vibration dampers of different lengths, this utility model provides a vibration damper testing device that can adjust the distance between the test piece 330 and the clamping piece 200, thereby adapting to vibration dampers of different lengths.

[0028] It should be noted that the vibration damper testing device of this utility model is used for vibration damper testing. For ease of explanation, this utility model will only describe the application of the vibration damper testing device to vibration damper testing.

[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a vibration damper testing device according to one embodiment of the present invention. The vibration damper testing device includes a frame 100, a clamping member 200, and a testing component 300. The clamping member 200 is mounted on the frame 100 and is used to clamp the vibration damper cylinder. The testing component 300 includes a slide 310, an adjustment drive member 320, and a testing piece 330. The slide 310 is slidably disposed on the frame 100 along the axial direction of the vibration damper.

[0030] The pitch adjustment drive 320 is mounted on the frame 100 and has an adjustment end that can move relative to the frame 100. The adjustment end is connected to the slide 310 to adjust the distance between the slide 310 and the clamping member 200. The test piece 330 is mounted on the slide 310 and is detachably connected to the piston end of the shock absorber. The test piece 330 drives the piston end of the shock absorber to reciprocate.

[0031] In this embodiment, the damper cylinder is first clamped by the clamping member 200. Then, the sliding block 310 is slid relative to the frame 100 by the pitch adjustment drive member 320, thereby moving the test piece 330 to the position of the damper piston end. The test piece 330 is then connected to the damper piston end, and the test piece 330 drives the damper piston end to reciprocate, thus testing whether the mechanical characteristics of the damper meet the requirements. Since the sliding block 310 can be moved by the pitch adjustment drive member 320, the distance between the test piece 330 and the clamping member 200 can be adjusted, thus accommodating dampers of different lengths.

[0032] In some embodiments, the test piece 330 includes a snap-fit ​​portion 331 and a test hydraulic cylinder 332. The snap-fit ​​portion 331 is slidably disposed on the slide block 310 and is detachably snap-fitted to the piston end of the shock absorber. The test hydraulic cylinder 332 is connected to the snap-fit ​​portion 331 to drive the snap-fit ​​portion 331 to reciprocate. By connecting the piston end of the shock absorber with the snap-fit ​​portion 331, and by driving the snap-fit ​​portion 331 to reciprocate through the test hydraulic cylinder 332, the piston end of the shock absorber can be driven to reciprocate.

[0033] Based on the above embodiments, in some embodiments, the locking part 331 has a locking groove 3311, and the locking groove 3311 has an inlet and outlet arranged radially along the test hydraulic cylinder 332. The operator can insert the piston end of the shock absorber into the locking groove 3311 through the inlet and outlet. Since the inlet and outlet are arranged radially along the test hydraulic cylinder 332, and the locking part 331 drives the piston end of the shock absorber to reciprocate axially, the piston end of the shock absorber will not disengage from the locking groove 3311 through the inlet and outlet during the test.

[0034] In addition, it should be noted that the test hydraulic cylinder 332 is an electro-hydraulic cylinder. During the process of driving the piston end of the shock absorber to move back and forth, the test hydraulic cylinder 332 can also detect the elastic force output by driving the piston end of the shock absorber, thereby achieving the purpose of detecting the mechanical characteristics of the shock absorber.

[0035] In some embodiments, a guide cone surface is formed on the inner wall of the slot 3311 near the clamping member 200. The test piece 330 also includes a limiting part 333, which is installed on the end of the slot 3311 away from the clamping member 200. The limiting part 333 has a first state of pressing against the piston end of the shock absorber and a second state of disengaging from the piston end of the shock absorber. Since the piston end dimensions of shock absorbers of different specifications are different, the piston end of the shock absorber is embedded in the slot 3311, and the limiting part 333 presses against the piston end, so that the limiting part 333 and the guide cone surface clamp the piston end of the shock absorber, thereby fixing the relative position of the piston end and the locking part 331. Since the diameter of the guide cone surface gradually changes, different positions of the guide cone surface can fit the piston end of the shock absorber of different diameters. Therefore, the guide cone surface can cooperate with the limiting part 333 to clamp the piston end of the shock absorber of different specifications.

[0036] Based on the above embodiments, in some embodiments, the end of the latching part 331 facing away from the clamping member 200 has a screw hole 3312 communicating with the slot 3311. The limiting part 333 includes a bolt 3331, which is screwed into the screw hole 3312. By adjusting the bolt 3331, the bolt 3331 can press against or disengage from the piston end of the shock absorber, so that the limiting part 333 can switch between a first state and a second state. When the bolt 3331 presses against the piston end of the shock absorber, it can cooperate with the guide cone surface to clamp and fix the piston end of the shock absorber. At this time, the limiting part 333 is in the first state. When the bolt 3331 disengages from the piston end of the shock absorber, the limiting part 333 is in the second state, so that the piston end of the shock absorber can disengage from the slot 3311.

[0037] In some embodiments, the slide 310 has a mating opening 311, and the snap-fit ​​part 331 is movably inserted through the mating opening 311.

[0038] In some embodiments, the frame 100 has a plurality of guide rods 110, and the slide 310 has a plurality of guide holes 312, with the guide rods 110 correspondingly passing through the guide holes 312. The guide rods 110 serve a guiding function, allowing the slide 310 to slide along the guide rods 110.

[0039] In some embodiments, the frame 100 is provided with guide rails 120, and the slide 310 is slidably disposed on the guide rails 120. The guide rails 120 also serve a guiding function, allowing the slide 310 to slide along the guide rails 120. It is understood that the guide rails 120 and the guide rods 110 can be used individually or simultaneously.

[0040] In some embodiments, the pitch adjustment drive 320 includes a pitch adjustment hydraulic cylinder 321, the cylinder body of which is mounted on the frame 100, and the pitch adjustment hydraulic cylinder 321 has the aforementioned adjustment end. The pitch adjustment hydraulic cylinder 321 drives the slide 310, thereby causing the slide 310 to move relative to the frame 100, and enabling the slide 310 to stop at any position on its sliding trajectory.

[0041] In some embodiments, the clamping member 200 includes openable and closable jaws for clamping and fixing the shock absorber cylinder. It should be noted that the jaws can be electric jaws, hydraulic jaws, or manual mechanical jaws; any implementation method that can clamp and fix the shock absorber cylinder is feasible.

[0042] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail below:

[0043] First, the shock absorber cylinder is gripped by grippers. The slide block 310 is driven by the adjustable hydraulic cylinder 321, which in turn moves the slide block 310 relative to the frame 100. Then, the operator inserts the shock absorber piston end into the slot 3311 through the inlet / outlet. Bolts 3331 press against the shock absorber piston end, thus clamping and fixing the piston end with the guide cone surface. The test hydraulic cylinder 332 drives the connecting clamping part 331, causing it to reciprocate. The clamping part 331 connects to the shock absorber piston end, and the test hydraulic cylinder 332 drives the clamping part 331 to reciprocate, thereby driving the shock absorber piston end to reciprocate. This tests whether the shock absorber's mechanical characteristics meet the requirements. Because the distance between the clamping part 331 and the grippers can be adjusted, shock absorbers of different lengths can be accommodated.

[0044] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A vibration damper testing device, characterized in that, include: frame; A clamping element, mounted on the frame, is used to clamp the shock absorber cylinder. as well as The test assembly includes a slide, an adjustment drive, and a test piece. The slide is slidably mounted on the frame along the axial direction of the damper. The adjustment drive is mounted on the frame and has an adjustment end that can move relative to the frame. The adjustment end is connected to the slide to adjust the distance between the slide and the clamping member. The test piece is mounted on the slide and is detachably connected to the piston end of the damper. The test piece drives the piston end of the damper to reciprocate.

2. The vibration damper testing device according to claim 1, characterized in that, The test piece includes a snap-fit ​​part and a test hydraulic cylinder. The snap-fit ​​part is slidably disposed on the slide block, and the snap-fit ​​part is detachably snap-fitted to the piston end of the shock absorber. The test hydraulic cylinder is drivenly connected to the snap-fit ​​part to drive the snap-fit ​​part to reciprocate.

3. The vibration damper testing device according to claim 2, characterized in that, The snap-fit ​​portion has a snap-fit ​​groove, and the snap-fit ​​groove has an inlet and outlet arranged radially along the test hydraulic cylinder.

4. The vibration damper testing device according to claim 3, characterized in that, The inner wall of the slot has a guide cone surface at one end near the clamping member. The test piece also includes a limiting part, which is installed at one end of the slot away from the clamping member. The limiting part has a first state of pressing against the piston end of the shock absorber and a second state of disengaging from the piston end of the shock absorber.

5. The vibration damper testing device according to claim 4, characterized in that, The snap-fit ​​part has a threaded hole that communicates with the snap-fit ​​groove at one end away from the clamping member. The limiting part includes a bolt, which is screwed into the threaded hole. By adjusting the bolt, the bolt can be pressed against or disengaged from the piston end of the shock absorber, so that the limiting part can switch between a first state and a second state.

6. The vibration damper testing device according to claim 2, characterized in that, The slide has a mating opening, and the snap-fit ​​part is movably inserted through the mating opening.

7. The vibration damper testing device according to claim 1, characterized in that, The frame has several guide rods, and the slide has several guide holes. The guide rods are inserted through the several guide holes one by one.

8. The vibration damper testing device according to claim 1, characterized in that, The frame is provided with guide rails, and the slide block is slidably mounted on the guide rails.

9. The vibration damper testing device according to claim 7 or 8, characterized in that, The pitch adjustment drive includes a pitch adjustment hydraulic cylinder, the cylinder body of which is mounted on the frame, and the piston rod of which has the adjustment end.

10. The vibration damper testing device according to claim 1, characterized in that, The clamping element includes openable and closable grippers.

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