A multi-dimensional detection shock absorber dynamometer

Abstract

This utility model relates to a shock absorber dynamometer, and more particularly to a multi-dimensional detection shock absorber dynamometer, which includes a machine base, an upper positioning mechanism, a lower positioning mechanism, a drive mechanism, and a detection mechanism. The upper positioning mechanism moves up and down between a front shock absorber positioning position and a rear shock absorber positioning position. The lower positioning mechanism includes a lower positioning seat and a drive plate, and the lower positioning mechanism is raised and lowered. The drive mechanism includes a turntable, with one end of a connecting rod hinged to the turntable and the hinge point being eccentrically set. The other end of the connecting rod is hinged to the drive plate. The detection mechanism includes a weighing sensor, a displacement sensor, and a thermometer. The weighing sensor is set between the lower positioning seat and the drive plate, and the displacement sensor is set on the machine base. The lower positioning mechanism is connected to a sensing rod, and the displacement sensor has a sensing hole through which the sensing rod passes. The thermometer is used to monitor the temperature of the outer tube of the shock absorber. The upper positioning mechanism is raised and lowered to adapt to the length difference between the front and rear shock absorbers. The real-time temperature is used to correct the damping force of the shock absorber in real time and to monitor abnormal temperature rise.

Description

Technical Field

[0001] This utility model relates to a shock absorber dynamometer, and more particularly to a shock absorber dynamometer with multi-dimensional detection. Background Technology

[0002] The shock absorber dynamometer analyzes the energy absorption and release of the shock absorber within one motion cycle by plotting the force-displacement relationship diagram, and judges whether its operation is stable and symmetrical. There are front and rear shock absorbers, with the front shock absorber being much longer than the rear shock absorber. It is proposed to design a multi-dimensional shock absorber dynamometer that is compatible with both front and rear shock absorbers. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a multi-dimensional detection shock absorber indicator, with a lifting and adjusting upper positioning mechanism to adapt to the front and rear shock absorbers, and a temperature measuring instrument to monitor the temperature of the outer tube of the shock absorber.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This multi-dimensional detection shock absorber indicator includes a machine base, an upper positioning mechanism, a lower positioning mechanism, a drive mechanism, and a detection mechanism. The upper positioning mechanism has a front shock absorber positioning position and a rear shock absorber positioning position, and moves up and down between the front and rear shock absorber positioning positions. The lower positioning mechanism includes a lower positioning seat and a drive plate, and is vertically mounted. The lower positioning mechanism cooperates with the upper positioning mechanism to position the shock absorber. The drive mechanism includes a turntable, with one end of a connecting rod hinged to the turntable and the hinge point eccentrically positioned. The other end of the connecting rod is hinged to the drive plate. The detection mechanism includes a weighing sensor, a displacement sensor, and a temperature measuring instrument. The weighing sensor is located between the lower positioning seat and the drive plate. The displacement sensor is located on the machine base. The lower positioning mechanism is connected to a sensing rod. The displacement sensor has a sensing hole through which the sensing rod passes. The temperature measuring instrument is used to monitor the temperature of the outer tube of the shock absorber.

[0005] In this scheme, the drive mechanism drives the lower positioning mechanism to rise and fall to simulate the working condition of the shock absorber, and the upper positioning mechanism rises and falls to adapt to the length difference between the front and rear shock absorbers. The real-time temperature is used to correct the damping force of the shock absorber in real time and to monitor abnormal temperature rise to identify internal faults. It can also be used for life prediction.

[0006] Preferably, the sensing rod is connected to the drive plate, and the drive plate is also connected to a guide rod, the guide rod being slidably fitted with a bushing, and the bushing being disposed on the machine base.

[0007] In this design, the guide rod, in conjunction with the bushing, guides the lifting and lowering of the drive plate, and the sensing rod is connected to the drive plate, ensuring accurate sensing of the stroke.

[0008] Preferably, the turntable is provided with a slider for radial movement adjustment, and the slider is hinged to the connecting rod.

[0009] In this scheme, the radially moving adjusting slider adjusts the lifting stroke of the lower positioning mechanism.

[0010] Preferably, the upper positioning mechanism includes an upper plate extending in the left-right direction, a guide post is provided on the machine base, a guide hole is provided on the upper plate for the guide post to pass through, a mounting base is provided on the guide post, and the temperature measuring instrument is mounted on the mounting base.

[0011] In this design, guide columns guide the lifting and lowering of the upper plate.

[0012] Preferably, the upper plate is provided with a locking gap communicating with the guide hole. The locking gap divides the upper plate into a fixed part and a movable part. The movable part is equipped with a locking block that moves back and forth. The fixed part is provided with a locking power source. The output shaft of the locking power source passes through the fixed part, the locking gap, the movable part, and is connected to the locking block.

[0013] In this scheme, the locking power source drives the locking block to clamp the guide post with the moving part and the fixed part, thus completing the locking and ensuring the stability of the upper positioning mechanism during the test.

[0014] Preferably, the upper plate is provided with a deformation hole communicating with the locking gap, the locking gap communicating with the front side of the upper plate, and the locking power source is disposed on the back side of the upper plate.

[0015] This design allows for a high degree of freedom in the activity department.

[0016] Preferably, a clamping power source is provided below the upper plate, which drives a set of V-shaped clamping plates to open and close. The clamping power source and the locking power source are hydraulic cylinders, and the clamping power source and the locking power source are equipped with flow dividers. The lower positioning seat includes a side plate and a bottom plate. The side plate is adjustable to move back and forth on the bottom plate, and the side plate is provided with a pin hole for the pin shaft to pass through.

[0017] In this scheme, the clamping power source drives the V-shaped clamping plate to clamp the upper end of the front shock absorber. The pin shaft passes through the pin hole on one side, the lower end of the front shock absorber, and the pin hole on the other side in sequence to complete the positioning of the lower end of the front shock absorber. The diversion valve ensures the synchronicity of clamping and locking.

[0018] Preferably, the upper plate is detachably connected to a rear reduction coupling seat, the rear reduction coupling seat is provided with a pin hole for the pin shaft to pass through, and the rear reduction coupling seat is located between the V-shaped clamps.

[0019] In this solution, the rear shock absorber connecting seat is disassembled and assembled to adapt to the front and rear shock absorbers. Fasteners are then passed through the pin holes on one side, the upper end of the rear shock absorber, and the pin holes on the other side in sequence to position the upper end of the shock absorber.

[0020] The beneficial effects of this utility model are as follows: the drive mechanism drives the lower positioning mechanism to rise and fall to simulate the working conditions of the shock absorber; the upper positioning mechanism rises and falls to adapt to the length difference between the front and rear shock absorbers; real-time temperature is used to correct the damping force of the shock absorber in real time and to monitor abnormal temperature rise to identify internal faults; it can also be used for life prediction. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0021] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the lower positioning mechanism in this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the upper plate in this utility model.

[0025] In the diagram: 1. Machine base; 2. Upper positioning mechanism; 3. Lower positioning mechanism; 4. Lower positioning seat; 5. Drive plate; 6. Drive mechanism; 7. Turntable; 8. Connecting rod; 9. Detection mechanism; 10. Weighing sensor; 11. Displacement sensor; 12. Temperature measuring instrument; 13. Sensing rod; 14. Sensing hole; 15. Guide rod; 16. Bushing; 17. Sliding block; 18. Upper plate; 19. Guide post; 20. Guide hole; 21. Mounting seat; 22. Locking gap; 23. Fixed part; 24. Moving part; 25. Locking block; 26. Locking power source; 27. Deformation hole; 28. Clamping power source; 29. ​​V-shaped clamping plate; 30. Diverter valve; 31. Side plate; 32. Base plate; 33. Pin hole; 34. Rear reducer connecting seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0028] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0029] See appendix Figure 1-2 This embodiment of the invention provides a multi-dimensional detection shock absorber indicator machine, comprising a machine base 1, an upper positioning mechanism 2, a lower positioning mechanism 3, a drive mechanism 6, and a detection mechanism 9. The upper positioning mechanism 2 has a front shock absorber positioning position and a rear shock absorber positioning position. The upper positioning mechanism 2 moves up and down between the front shock absorber positioning position and the rear shock absorber positioning position. The upper positioning mechanism 2 includes an upper plate 18 extending in the left-right direction. The machine base 1 is provided with guide posts 19. The upper plate 18 is provided with guide holes 20 for the guide posts 19 to pass through. A clamping power source 28 is provided below the upper plate 18. The clamping power source 28 drives a set of V-shaped clamping plates 29 to open and close. The upper plate 18 is detachably connected to a rear shock absorber connecting seat 34. The rear shock absorber connecting seat 34 is provided with pin holes 33 for pin shafts to pass through. The rear shock absorber connecting seat 34 is located between the V-shaped clamping plates 29.

[0030] The lower positioning mechanism 3 includes a lower positioning seat 4 and a drive plate 5. The lower positioning seat 4 includes a side plate 31 and a base plate 32. The side plate 31 is adjustable to move back and forth on the base plate 32. The side plate 31 is provided with a pin hole 33 for the pin shaft to pass through. The lower positioning mechanism 3 is raised and lowered. The lower positioning mechanism 3 cooperates with the upper positioning mechanism 2 to position the shock absorber. The drive mechanism 6 includes a turntable 7. A slider 17 is radially adjustable on the turntable 7. The slider 17 is hinged to the connecting rod 8 and the hinge point is eccentrically set. The other end of the connecting rod 8 is hinged to the drive plate 5.

[0031] The detection mechanism 9 includes a weighing sensor 10, a displacement sensor 11, and a thermometer 12. The weighing sensor 10 is disposed between the lower positioning seat 4 and the drive plate 5. The displacement sensor 11 is disposed on the machine base 1 and has a sensing hole 14 through which a sensing rod 13 passes. The sensing rod 13 is connected to the drive plate 5. The thermometer 12 is used to monitor the temperature of the outer tube of the shock absorber. The drive plate 5 is also connected to a guide rod 15. The guide rod 15 is slidably fitted with a bushing 16. The bushing 16 is disposed on the machine base 1. The guide column 19 is provided with a mounting base 21, and the thermometer 12 is disposed on the mounting base 21.

[0032] In this embodiment, when testing the front shock absorber, the upper positioning mechanism 2 rises to the front shock absorber positioning position, and the pin passes through the pin hole 33 on one side, the lower end of the front shock absorber and the pin hole 33 on the other side in sequence. The clamping power source 28 drives a set of V-shaped clamping plates 29 to clamp the upper end of the front shock absorber.

[0033] When installing the rear shock absorber, install the rear shock absorber connecting seat 34. Both the rear shock absorber connecting seat 34 and the lower positioning seat 4 are connected to the rear shock absorber via pins.

[0034] After installation, move the side plate 31 back and forth to adjust the verticality of the shock absorber, move the slider 17 radially to adjust the stroke of the lower positioning seat 4, and drive the turntable 7 to rotate, which in turn drives the lower positioning seat 4 to rise and fall through the connecting rod 8.

[0035] During the test, the weighing sensor 10 senses the damping force of the shock absorber, the displacement sensor 11 senses the stroke of the shock absorber, and the thermometer 12 senses the temperature of the outer tube of the shock absorber. By adjusting the motor speed, the damping force at different speeds can also be tested. The damping force is corrected in real time by multiplying the real-time temperature by the viscosity compensation coefficient, eliminating the influence of the damping oil viscosity on the damping force. The internal fault of the shock absorber can be identified based on the temperature rise per unit time.

[0036] The turntable 7 has an adjustment groove, and an adjustment screw is installed in the adjustment groove. The slider 17 is threadedly engaged with the adjustment screw; the cylinder drives the upper positioning mechanism 2 to rise and fall.

[0037] See appendix Figure 1 , 3 The upper plate 18 is provided with a locking gap 22 communicating with the guide hole 20. The locking gap 22 divides the upper plate 18 into a fixed part 23 and a movable part 24. The movable part 24 is equipped with a locking block 25 that moves back and forth. The fixed part 23 is provided with a locking power source 26. The output shaft of the locking power source 26 passes through the fixed part 23, the locking gap 22, and the movable part 24 and is connected to the locking block 25. The upper plate 18 is provided with a deformation hole 27 communicating with the locking gap 22. The locking gap 22 is communicating with the front of the upper plate 18. The locking power source 26 is located on the back of the upper plate 18. The clamping power source 28 and the locking power source 26 are hydraulic cylinders. The clamping power source 28 and the locking power source 26 are equipped with a flow divider valve 30.

[0038] In this embodiment, the guide post 19 is located between the locking block 25 and the deformation hole 27. The locking block 25 drives the movable part 24 to deform around the deformation hole 27 to loosen or loosen the guide post 19. The movable part 24 between the locking block 25 and the deformation hole 27 reliably clamps the guide post 19. The upper plate 18 is provided with a locking groove on the front for the locking block 25 to move. The movable part 24 and the fixed part 23 are provided with through holes for the output shaft to pass through.

[0039] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. A multi-dimensionally tested shock absorber dynamometer, characterized by: include Machine (1); The upper positioning mechanism (2) has a front reduction positioning position and a rear reduction positioning position, and the upper positioning mechanism (2) moves up and down between the front reduction positioning position and the rear reduction positioning position; The lower positioning mechanism (3) includes a lower positioning seat (4) and a drive plate (5). The lower positioning mechanism (3) is raised and lowered, and the lower positioning mechanism (3) cooperates with the upper positioning mechanism (2) to position the shock absorber. The drive mechanism (6) includes a turntable (7) with one end of a connecting rod (8) hinged to it and the hinge point is eccentrically set. The other end of the connecting rod (8) is hinged to the drive plate (5). The detection mechanism (9) includes a weighing sensor (10), a displacement sensor (11), and a thermometer (12). The weighing sensor (10) is located between the lower positioning seat (4) and the drive plate (5). The displacement sensor (11) is located on the machine base (1). The lower positioning mechanism (3) is connected to a sensing rod (13). The displacement sensor (11) has a sensing hole (14) through which the sensing rod (13) passes. The thermometer (12) is used to monitor the temperature of the outer tube of the shock absorber.

2. A multi-dimensional tested shock absorber dynamometer as claimed in claim 1, characterized in that: The sensing rod (13) is connected to the drive plate (5), and the drive plate (5) is also connected to the guide rod (15). The guide rod (15) is slidably fitted with a bushing (16), and the bushing (16) is set on the machine base (1).

3. The multi-dimensional tested shock absorber dynamometer of claim 1, wherein: The turntable (7) is equipped with a slider (17) for radial movement adjustment, and the slider (17) is hinged to the connecting rod (8).

4. The multi-dimensional tested shock absorber dynamometer of claim 1, wherein: The upper positioning mechanism (2) includes an upper plate (18) extending in the left and right direction. The machine base (1) is provided with a guide post (19). The upper plate (18) is provided with a guide hole (20) for the guide post (19) to pass through. The guide post (19) is provided with a mounting base (21). The thermometer (12) is mounted on the mounting base (21).

5. A multi-dimensional tested shock absorber dynamometer as claimed in claim 4, characterized in that: The upper plate (18) is provided with a locking gap (22) communicating with the guide hole (20). The locking gap (22) divides the upper plate (18) into a fixed part (23) and a movable part (24). The movable part (24) is provided with a locking block (25) that moves back and forth. The fixed part (23) is provided with a locking power source (26). The output shaft of the locking power source (26) passes through the fixed part (23), the locking gap (22), the movable part (24), and is connected to the locking block (25).

6. A multi-dimensional tested shock absorber dynamometer as claimed in claim 5, characterized in that: The upper plate (18) is provided with a deformation hole (27) that communicates with the locking gap (22). The locking gap (22) communicates with the front of the upper plate (18), and the locking power source (26) is located on the back of the upper plate (18).

7. The multi-dimensional tested shock absorber dynamometer as recited in claim 4, characterized by: The upper plate (18) is provided with a clamping power source (28) below it. The clamping power source (28) drives a set of V-shaped clamping plates (29) to open and close. The clamping power source (28) and the locking power source (26) are hydraulic cylinders. The clamping power source (28) and the locking power source (26) are equipped with a flow divider valve (30). The lower positioning seat (4) includes a side plate (31) and a bottom plate (32). The side plate (31) is adjustable to move back and forth on the bottom plate (32). The side plate (31) is provided with a pin hole (33) for the pin shaft to pass through.

8. A multi-dimensional tested shock absorber dynamometer as claimed in claim 7, characterized in that: The upper plate (18) is detachably connected to a rear reduction connector (34), which has a pin hole (33) for the pin shaft to pass through, and is located between the V-shaped clamps (29).

Images