A motorcycle shock absorber damping performance detection device
By designing a motorcycle shock absorber damping performance testing device with replaceable cams, the problem that existing devices cannot simulate different road surface bumps has been solved, achieving a more flexible and efficient shock absorber performance evaluation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YUAN PRECISION MACHINERY CO LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-21
Smart Images
Figure CN224535388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorber damping performance testing technology, and in particular to a motorcycle shock absorber damping performance testing device. Background Technology
[0002] Chinese patent document CN221685836U discloses an elasticity testing device for a motorcycle rear wheel shock absorber, comprising a testing frame and a support plate. The support plate is disposed inside the testing frame, and a threaded rod is rotatably connected inside the testing frame. A sliding plate is threadedly connected to the outside of the threaded rod, and the sliding plate is slidably connected to the inner wall of the testing frame. Fixed plates are fixedly connected to the bottom of the support plate and the bottom of the inner wall of the testing frame, and locating pins are fixedly connected to one side of each fixed plate. The shock absorber is disposed between the two locating pins. The beneficial effect of this invention is that the limiting and fixing mechanism ensures that the shock absorber moves in a predetermined manner during the test, thereby accurately measuring its performance parameters, such as rebound rate, damping force, and stroke. The fixed limiting mechanism reduces the possibility of accidents and prevents the shock absorber from detaching during the test, which could cause damage or loss. Compared with traditional devices, this greatly improves the quality of operation and efficiency.
[0003] After investigation and analysis, the patent has the following drawbacks in actual use:
[0004] The device's testing structure lacks replaceable cams or other amplitude adjustment components, resulting in a fixed driving amplitude during testing. This makes it impossible to simulate the bumpy conditions of motorcycles on different road surfaces, limiting testing to a single condition and failing to fully reflect the shock absorber's performance response under diverse road conditions.
[0005] In summary, this application proposes a motorcycle shock absorber damping performance testing device to solve the aforementioned problems. Utility Model Content
[0006] The purpose of this invention is to provide a motorcycle shock absorber damping performance testing device that can solve the problems of fixed driving amplitude during the testing process, inability to simulate the bumpy conditions of different road surfaces during motorcycle driving, and the inability to fully reflect the performance response of the shock absorber under various road conditions.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle shock absorber damping performance testing device, comprising:
[0008] The base has two sets of vertical plates fixedly installed on its top, which are symmetrically distributed.
[0009] The test assembly is set on the vertical plate. The test assembly includes a rotating column, a sleeve, a motor, and cams. The outer wall of the rotating column is fitted with a sleeve, and two sets of cams are fixedly installed on the outer wall of the sleeve and are symmetrically distributed.
[0010] An auxiliary component is mounted on a rotating column. The auxiliary component includes a fixed frame, a sliding block, a pull rod, a T-shaped locking block, and a spring. The sliding block is slidably installed inside the fixed frame, and a pull rod is installed on the top of the sliding block. The other end of the pull rod passes through the fixed frame and is fixedly installed with a T-shaped locking block.
[0011] Preferably, two sets of clamping blocks are fixedly installed on the top of the base and are symmetrically distributed. The base is provided with a bidirectional drive mechanism. The bidirectional drive mechanism drives the two sets of clamping blocks to move towards each other. By driving the clamping blocks to move towards each other through the bidirectional drive mechanism, the size of the shock absorber cylinder of different specifications can be quickly adapted to achieve the lateral adaptive positioning of the shock absorber.
[0012] Preferably, the opposite sidewalls of the two sets of vertical plates are provided with sliding grooves, and a sliding plate is provided between the two sets of vertical plates. Connecting blocks are fixedly installed on both sides of the sliding plate. The connecting blocks are slidably installed inside the sliding groove. The sliding groove provides a precise guide trajectory for the movement of the sliding plate. When the cam pushes the sliding plate to move, the cooperation between the sliding groove and the connecting block can limit the sliding plate to reciprocate only in the vertical direction, avoiding lateral deviation or jamming.
[0013] Preferably, the test assembly also includes a motor. A motor is fixedly installed on one side of a set of vertical plates, and one end of the rotating column passes through the vertical plates and is fixedly installed with the output shaft of the motor. The rotating column is directly driven by the motor to achieve stable power input to the cam. The direct transmission structure reduces power loss and transmission clearance, making it easier to control the rotation speed and cycle of the cam more accurately. This design ensures the consistency and repeatability of the simulated bumpy working conditions, and makes it easier for testers to accurately capture the damping response of the shock absorber at different motion stages through the stable cam motion law, thereby improving the reliability of the test data.
[0014] Preferably, the auxiliary component further includes a spring. The bottom of the fixed frame is fixedly installed on the outer wall of the rotating column. A spring is sleeved on the pull rod. One end of the spring is fixedly installed on the top of the sliding block, and the other end of the spring is fixedly installed on the inner top of the fixed frame. The rotating column and the sleeve have communicating slots. The bottom end of the T-shaped block is engaged in the slot. By changing the size of the cam, the amplitude of the drive detection can be effectively adjusted. Different cam sizes correspond to different amplitudes, which can more realistically simulate different road conditions, thereby testing the shock absorber's damping effect under different conditions. Therefore, testers can check the shock absorber's response under different amplitudes, thereby comprehensively evaluating its performance. Compared with a single fixed amplitude detection method, the design of using a replaceable cam improves the flexibility and efficiency of the test. Operators can quickly adjust the amplitude as needed, avoiding frequent device changes or repeated settings of the test process, thus improving work efficiency.
[0015] Preferably, one side of one set of the vertical plates has a through hole to facilitate the replacement and installation of the sleeve.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) The motorcycle shock absorber damping performance testing device uses a rotating column, sleeve, motor and cam in combination. The rotating column is directly driven by the motor to achieve stable power input of the cam. The direct transmission structure reduces power loss and transmission gap, making it easier to control the rotation speed and cycle of the cam more accurately. This design ensures the consistency and repeatability of simulated bumpy working conditions, and makes it easier for testers to accurately capture the damping response of the shock absorber in different motion stages through the stable cam motion law, thus improving the reliability of the test data.
[0018] (2) The motorcycle shock absorber damping performance testing device, through the combined use of a fixed frame, sliding block, pull rod, T-shaped block and spring, can effectively adjust the amplitude of the drive test by changing the size of the cam. Different cam sizes correspond to different amplitudes, which can more realistically simulate different road conditions, thereby testing the shock absorber's damping effect under different conditions. Therefore, testers can check the shock absorber's response under different amplitudes, thereby comprehensively evaluating its performance. Compared with the single fixed amplitude testing method, the use of replaceable cam design improves the flexibility and efficiency of the test. Operators can quickly adjust the amplitude as needed, avoiding frequent device changes or repeated settings of the test process, thus improving work efficiency. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0020] Figure 1 This is a perspective view of the present utility model;
[0021] Figure 2 This is a three-dimensional sectional view of the present invention;
[0022] Figure 3 This is a partial perspective view of the present invention;
[0023] Figure 4 This is a partial structural schematic diagram of the present invention.
[0024] Reference numerals in the attached drawings: 1. Base; 2. Vertical plate; 3. Clamping block; 4. Sliding plate; 5. Slide groove; 6. Connecting block; 7. Rotating column; 8. Sleeve; 9. Motor; 10. Cam; 11. Fixed frame; 12. Sliding block; 13. Pull rod; 14. T-shaped locking block; 15. Spring; 16. Bidirectional drive mechanism. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0026] Please see Figure 1-4 This utility model provides a technical solution: a motorcycle shock absorber damping performance testing device, including a base 1, a testing component and an auxiliary component. Two sets of vertical plates 2 are fixedly installed on the top of the base 1 and are symmetrically distributed. The testing component is set on the vertical plate 2 and includes a rotating column 7, a sleeve 8, a motor 9 and a cam 10. The sleeve 8 is sleeved on the outer wall of the rotating column 7, and two sets of cams 10 are fixedly installed on the outer wall of the sleeve 8 and are symmetrically distributed. The auxiliary component is set on the rotating column 7 and includes a fixed frame 11, a sliding block 12, a pull rod 13, a T-shaped locking block 14 and a spring 15. The sliding block 12 is slidably installed inside the fixed frame 11, and the pull rod 13 is installed on the top of the sliding block 12. The other end of the pull rod 13 passes through the fixed frame 11 and is fixedly installed with the T-shaped locking block 14.
[0027] Furthermore, two sets of clamping blocks 3 are fixedly installed on the top of the base 1 and are symmetrically distributed. The base 1 is equipped with a bidirectional drive mechanism 16. The bidirectional drive mechanism 16 drives the two sets of clamping blocks 3 to move towards each other. By driving the clamping blocks 3 to move towards each other through the bidirectional drive mechanism 16, the size of the shock absorber cylinder of different specifications can be quickly adapted to achieve the lateral adaptive positioning of the shock absorber.
[0028] Furthermore, each of the two sets of vertical plates 2 has a sliding groove 5 on its opposite sidewall, and a sliding plate 4 is provided between the two sets of vertical plates 2. Connecting blocks 6 are fixedly installed on both sides of the sliding plate 4. The connecting blocks 6 are slidably installed inside the sliding groove 5. The sliding groove 5 provides a precise guide trajectory for the movement of the sliding plate 4. When the cam 10 pushes the sliding plate 4 to move, the cooperation between the sliding groove 5 and the connecting block 6 can restrict the sliding plate 4 to reciprocate only in the vertical direction, avoiding lateral deviation or jamming.
[0029] Furthermore, the test assembly also includes a motor 9. A motor 9 is fixedly mounted on one side of a set of vertical plates 2. One end of a rotating column 7 passes through the vertical plate 2 and is fixedly mounted to the output shaft of the motor 9. When the motor 9 is started, it drives the rotating column 7 to rotate synchronously. The sleeve 8 fitted on the outer wall of the rotating column 7 rotates along with the rotating column 7. Two sets of cams 10, symmetrically fixed to the outer wall of the sleeve 8, then perform circular motion. The profile design of the cams 10 is adapted to the bumpy conditions during motorcycle riding. During their rotation, they periodically push the sliding plate 4. When the protruding part of the cam 10 contacts the sliding plate 4, it pushes the sliding plate upward along the slide groove 5, thereby squeezing the shock absorber piston rod and putting the shock absorber in a compressed state. When the protruding part of the cam 10 disengages from the slide groove 5... When the plate is in motion, the shock absorber pushes the sliding plate downward to reset under its own elastic force, and is in a stretched state. The motor 9 continues to run, driving the cam 10 to rotate cyclically, so that the shock absorber can reciprocate between compression and stretching, simulating the working state of the shock absorber of a motorcycle under different road conditions. The motor 9 directly drives the rotating column 7 to rotate, realizing a stable power input to the cam 10. The direct transmission structure reduces power loss and transmission clearance, making it easier to accurately control the rotation rate and cycle of the cam 10. This design ensures the consistency and repeatability of the simulated bumpy working conditions, and makes it easy for testers to accurately capture the damping response of the shock absorber in different motion stages through the stable motion law of the cam 10, thus improving the reliability of the test data.
[0030] Furthermore, the auxiliary components also include a spring 15. The bottom of the fixed frame 11 is fixedly installed on the outer wall of the rotating column 7. The spring 15 is sleeved on the pull rod 13. One end of the spring 15 is fixedly installed on the top of the sliding block 12, and the other end of the spring 15 is fixedly installed on the inner top of the fixed frame 11. The rotating column 7 and the sleeve 8 have communicating slots. The bottom end of the T-shaped locking block 14 is engaged in the slot. By pulling the pull rod 13 upward, the sliding block 12 fixed at its top will slide upward along the inside of the fixed frame 11. At the same time, the spring 15 sleeved on the pull rod 13 is compressed. The T-shaped locking block 14 at the bottom of the pull rod 13 moves upward synchronously with the pull rod 13 until the T-shaped locking block 14 disengages from the communicating slot on the rotating column 7 and the sleeve 8, releasing the lock on the sleeve 8. Since a through hole is opened on one side of a set of vertical plates 2, the sleeve 8 together with the cam 10 can be removed from the through hole along the axial direction of the rotating column 7, completing the disassembly of the old sleeve. Next, the new sleeve with the target contour cam 10 is fitted onto the rotating column 7. The position of the sleeve 8 is adjusted so that the sleeve 8 is aligned with the slot on the rotating column 7. The pull rod 13 is released, and the spring 15 pushes the sliding block 12 downward by the elastic restoring force, which drives the T-shaped locking block 14 to insert into the aligned slot, thus achieving quick locking of the new sleeve. By changing the size of the cam, the amplitude of the drive detection can be effectively adjusted. Different cam sizes correspond to different amplitudes, which can more realistically simulate different road conditions, thereby testing the shock absorber's damping effect under different conditions. Therefore, testers can check the shock absorber's response under different amplitudes, thereby comprehensively evaluating its performance. Compared with the single fixed amplitude detection method, the design of using a replaceable cam improves the flexibility and efficiency of the test. Operators can quickly adjust the amplitude as needed, avoiding frequent device changes or repeated settings of the test process, thus improving work efficiency.
[0031] Secondly, one side of one set of vertical plates 2 has a through hole, which facilitates the replacement and installation of the sleeve 8.
[0032] Working principle: The shock absorber is placed between two sets of clamping blocks 3. The bidirectional drive mechanism 16 is activated, which drives the two sets of clamping blocks 3 symmetrically distributed on the top of the base to move towards each other until the clamping blocks 3 are tightly fitted with the shock absorber cylinder, thus initially achieving the lateral positioning of the shock absorber. The sliding plate 4 is adjusted to the height corresponding to the top of the shock absorber piston rod. The motor 9 is activated, which drives the rotating column 7 to rotate synchronously. As the column rotates, the sleeve 8 fitted on the outer wall of the column rotates together with the rotating column 7. The two sets of cams 10 symmetrically fixed on the outer wall of the sleeve 8 then perform circular motion. The profile design of cam 10 is adapted to the bumpy conditions of motorcycle riding. During its rotation, it periodically pushes the sliding plate 4. When the protruding part of cam 10 contacts the sliding plate 4, it pushes the sliding plate upward along the slide groove 5, thereby squeezing the shock absorber piston rod and putting the shock absorber in a compressed state. When the protruding part of cam 10 disengages from the sliding plate, the shock absorber pushes the sliding plate downward to reset under its own elastic force, putting it in a stretched state. The motor 9 continuously runs, driving cam 10 to rotate cyclically, which allows the shock absorber to move back and forth between compression and stretching. The reciprocating motion simulates the working state of a motorcycle's shock absorber under different road conditions. Operators can indirectly obtain damping performance data by monitoring parameters such as resistance and speed of the shock absorber's reciprocating motion. Different profile cams 10 can be used to adapt to various testing conditions. By pulling the lever 13 upwards, the sliding block 12 fixed at its top slides upwards along the inside of the fixed frame 11. Simultaneously, the spring 15 sleeved on the lever 13 is compressed, and the T-shaped locking block 14 at the bottom of the lever 13 moves upwards synchronously with the lever 13 until the T-shaped locking block 14 disengages from the rotating column 7. The connecting slot on the sleeve 8 releases the lock on the sleeve 8. Since a through hole is opened on one side of a set of vertical plates 2, the sleeve 8 together with the cam 10 can be taken out from the through hole along the axis of the rotating column 7, completing the disassembly of the old sleeve. Then, the new sleeve with the target contour cam 10 is placed on the rotating column 7. The position of the sleeve 8 is adjusted so that the sleeve 8 is aligned with the slot on the rotating column 7. The pull rod 13 is released, and the spring 15 pushes the sliding block 12 downward by elastic restoring force, which drives the T-shaped locking block 14 to insert into the aligned slot, realizing the quick locking of the new sleeve.
[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A device for testing the damping performance of a motorcycle shock absorber, characterized in that, include: The base (1) has two sets of vertical plates (2) fixedly installed on its top and are symmetrically distributed; The test assembly is set on the vertical plate (2). The test assembly includes a rotating column (7), a sleeve (8) and a cam (10). The outer wall of the rotating column (7) is fitted with a sleeve (8). Two sets of cams (10) are fixedly installed on the outer wall of the sleeve (8) and are symmetrically distributed. An auxiliary component is provided on the rotating column (7). The auxiliary component includes a fixed frame (11), a sliding block (12), a pull rod (13), and a T-shaped locking block (14). The sliding block (12) is slidably installed inside the fixed frame (11). The pull rod (13) is installed on the top of the sliding block (12). The other end of the pull rod (13) passes through the fixed frame (11) and is fixedly installed with the T-shaped locking block (14).
2. The motorcycle shock absorber damping performance testing device according to claim 1, characterized in that: Two sets of clamping blocks (3) are fixedly installed on the top of the base (1) and are symmetrically distributed. A bidirectional drive mechanism (16) is provided inside the base (1). The bidirectional drive mechanism (16) drives the two sets of clamping blocks (3) to move in opposite directions.
3. The motorcycle shock absorber damping performance testing device according to claim 2, characterized in that: The two sets of vertical plates (2) have grooves (5) on their opposite sidewalls. A sliding plate (4) is provided between the two sets of vertical plates (2). Connecting blocks (6) are fixedly installed on both sides of the sliding plate (4). The connecting blocks (6) are slidably installed inside the grooves (5).
4. The motorcycle shock absorber damping performance testing device according to claim 3, characterized in that: The test assembly also includes a motor (9), a set of vertical plates (2) on one side of which the motor (9) is fixedly installed, and one end of the rotating column (7) passes through the vertical plate (2) and is fixedly installed with the output shaft of the motor (9).
5. The motorcycle shock absorber damping performance testing device according to claim 4, characterized in that: The auxiliary components also include a spring (15), the bottom of the fixed frame (11) is fixedly installed on the outer wall of the rotating column (7), the spring (15) is sleeved on the pull rod (13), one end of the spring (15) is fixedly installed on the top of the sliding block (12), the other end of the spring (15) is fixedly installed on the top of the inner side of the fixed frame (11), the rotating column (7) and the sleeve (8) are provided with a connected slot, and the bottom end of the T-shaped card block (14) is snapped into the slot.
6. The motorcycle shock absorber damping performance testing device according to claim 5, characterized in that: One of the vertical plates (2) has a through hole on one side to facilitate the replacement and installation of the sleeve (8).