Shock absorber engineering performance testing machine

Abstract

The utility model discloses a shock absorber display performance testing machine which comprises a base, the top of the base is fixedly provided with a workbench through a supporting column, the top of the workbench is vertically provided with two guide shafts, the upper ends and the lower ends of the guide shafts are respectively provided with an upper guide sleeve and a lower guide sleeve in a sliding mode, and an upper moving cross beam is arranged between the two upper guide sleeves. The bottom of the upper moving cross beam is connected with an upper connecting seat through a load sensor, the cross beam is provided with a lifting adjusting device for driving the upper moving cross beam to move up and down, a lower moving cross beam is arranged between the two lower guide sleeves, and the top of the lower moving cross beam is provided with a lower connecting seat; a driving device for driving the lower moving cross beam to move up and down is arranged at the top of the base, an eccentric adjusting device is arranged on the driving device, a counting sensor matched with the driving device is fixedly arranged on the base, and a displacement sensor is fixedly arranged at the bottom of the workbench; the output end of the displacement sensor penetrates through the workbench and is fixedly connected with the lower moving cross beam through a connecting support.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test machine technical field, specifically is a shock absorber shows the performance test machine of work. BACKGROUND

[0002] The shock absorber is a kind of device for reducing the vibration of machinery or structure, is widely used in automobile, building, aerospace etc. field. In order to ensure that the performance of shock absorber meets the requirements, corresponding test needs to be carried out. The existing shock absorber shows the performance test machine mostly uses hydraulic pressure or air pressure as force source, simulates the load under actual working condition by exerting certain pressure or force. However, the existing shock absorber test equipment has some limitations, such as the unstable force transmission of test machine, prone to error;The test range adjustment operation of test machine is cumbersome;The precision and reliability of test machine need to be improved. UTILITY MODEL CONTENTS

[0003] The utility model provides a kind of shock absorber shows the performance test machine.

[0004] A kind of shock absorber shows the performance test machine, including base, the top of the base is fixedly provided with workbench by support column, the top of the workbench is vertically provided with two guide shafts, the top of two guide shafts is connected by crossbeam, the upper end and the lower end of the guide shaft are slidably provided with upper guide sleeve and lower guide sleeve, upper moving crossbeam is arranged between two upper guide sleeves, the bottom of the upper moving crossbeam is connected with upper connecting seat by load sensor, lifting adjusting device is arranged on the crossbeam and drives the upper moving crossbeam to move up and down, lower moving crossbeam is arranged between two lower guide sleeves, lower connecting seat is arranged on the top of the lower moving crossbeam, driving device is arranged on the top of the base and drives the lower moving crossbeam to move up and down, eccentric adjusting device is arranged on the driving device, counting sensor is fixedly arranged on the base and cooperates with driving device, displacement sensor is fixedly arranged on the bottom of the workbench, the output of the displacement sensor is through workbench and is fixedly connected with lower moving crossbeam by connecting support.

[0005] Further, the driving device includes a main power motor fixedly arranged on the top of the base and a double-shaft main shaft box, a main driving synchronous wheel is fixedly arranged on the output end of the main power motor, a passive synchronous pulley is fixedly arranged on one output end of the double-shaft main shaft box, the main driving synchronous wheel and the passive synchronous pulley are connected by synchronous belt, an eccentric rotating wheel is fixedly arranged on the other output end of the double-shaft main shaft box, the eccentric adjusting device is arranged on the eccentric rotating wheel, a pulling rod connecting piece is fixedly arranged on the bottom of the lower moving crossbeam, the eccentric adjusting device is connected with the pulling rod connecting piece by pulling rod.

[0006] Further, the eccentricity adjusting device comprises two sliding rails arranged in parallel on the eccentric rotating wheel and eccentricity adjusting sliders, the eccentricity adjusting sliders are in sliding connection with the two sliding rails, an eccentricity adjusting screw is rotatably arranged on the eccentric rotating wheel between the two sliding rails, the eccentricity adjusting screw penetrates through the eccentricity adjusting sliders and is in threaded connection therewith, one end of the eccentricity adjusting sliders is rotatably connected with the pulling rod, and the other end of the pulling rod is rotatably connected with the pulling rod connecting piece.

[0007] Further, the lifting adjusting device comprises a lifting motor, a lifting motor speed reducer and a lifting adjusting screw, the lifting motor and the lifting motor speed reducer are fixedly arranged on the cross beam, the output end of the lifting motor is fixedly connected with the input end of the lifting motor speed reducer, the lifting adjusting screw penetrates through the lifting motor speed reducer and is in transmission cooperation therewith, and the lower end of the lifting adjusting screw is rotatably connected with the upper movable cross beam.

[0008] Further, the counting sensor is matched with the passive synchronous pulley.

[0009] Further, the upper connecting seat and the lower connecting seat are hingedly connected with two ends of the shock absorber respectively.

[0010] In conclusion, the shock absorber performance test machine has the following beneficial effects:

[0011] The shock absorber performance test machine is driven by the motor, stable force transmission is realized through accurate control, the shock absorber performance test of shock absorbers with different lengths can be carried out through the lifting adjusting device, the strength of the shock absorber performance test is adjusted through the eccentricity adjusting device, the operation is simple, the displacement sensor, the load sensor and the counting sensor connected with the automatic control system are arranged, the displacement, the force value and the test times are recorded, and the accuracy of the test results is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a front view of the shock absorber performance test machine of the utility model;

[0013] Fig. 2 It is a side view of the shock absorber performance test machine of the utility model;

[0014] Fig. 3 It is a top view of the shock absorber performance test machine of the utility model.

[0015] In the figure: 1 base, 2 main power motor, 3 synchronous belt, 4 support column, 5 displacement sensor, 6 guide shaft, 7 lower guide sleeve, 8 upper guide sleeve, 9 lifting motor speed reducer, 10 lifting adjusting lead screw, 11 lifting motor, 12 upper moving crossbeam, 13 load sensor, 14 upper connecting seat, 15 shock absorber, 16 lower connecting seat, 17 pull rod connecting piece, 18 pull rod, 19 eccentric rotating wheel, 20 eccentric adjusting sliding block, 21 eccentric adjusting lead screw, 22 lower moving crossbeam, 23 connecting support, 24 workbench, 25 main drive sprocket, 26 passive synchronous pulley, 27 double-shaft main shaft box, 28 crossbeam, 29 slide rail, 30 counting sensor. DETAILED DESCRIPTION

[0016] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] The following will be further explained in conjunction with the accompanying drawings Figs. 1-3 The utility model is further explained as follows:

[0018] A shock absorber performance test machine, including base 1, the top of base 1 is fixedly provided with workbench 24 through support column 4, the top of workbench 24 is vertically provided with two guide shafts 6, the top of two guide shafts 6 is connected through crossbeam 28, the upper end and the lower end of guide shaft 6 are slidably provided with upper guide sleeve 8 and lower guide sleeve 7, the upper moving crossbeam 12 is arranged between two upper guide sleeves 8, the bottom of upper moving crossbeam 12 is connected with upper connecting seat 14 through load sensor 13, the lower moving crossbeam 22 is arranged between two lower guide sleeves 7, the top of lower moving crossbeam 22 is provided with lower connecting seat 16, upper connecting seat 14 and lower connecting seat 16 are hingedly connected with the two ends of shock absorber 15 respectively, the bottom of workbench 24 is fixedly provided with displacement sensor 5, the output end of displacement sensor 5 penetrates workbench 24 and is fixedly connected with lower moving crossbeam 22 through connecting support 23. Crossbeam 28 is provided with lifting adjusting device that drives the up-down movement of upper moving crossbeam 12, and the lifting adjusting device comprises lifting motor 11, lifting motor speed reducer 9 and lifting adjusting lead screw 10, lifting motor 11 and lifting motor speed reducer 9 are fixedly arranged on crossbeam 28, the output end of lifting motor 11 is fixedly connected with the input end of lifting motor speed reducer 9, lifting adjusting lead screw 10 penetrates lifting motor speed reducer 9 and is transmissionally matched with lifting motor speed reducer 9, and the lower end of lifting adjusting lead screw 10 is rotationally connected with upper moving crossbeam 12.

[0019] In the embodiment, the utility model discertain the work performance test of the shock absorber 15 of different length by adjusting the distance between the upper moving crossbeam 12 and the lower moving crossbeam 22. The upper connecting seat 14 and the lower connecting seat 16 are used to install the shock absorber 15. When using, the two ends of the shock absorber 15 are hinged with the connecting seat 14 and the lower connecting seat 16 respectively. When installing the shock absorber 15, the distance between the connecting seat 14 and the lower connecting seat 16 is adjusted to match the length of the shock absorber 15 under the action of the upper guiding sleeve 8 and the guiding shaft 6 of the sliding connection by controlling the upper moving crossbeam 12 to move downward by the lifting adjusting device, facilitating the installation of the shock absorber 15. In the embodiment, the rotation of the lifting adjusting lead screw 10 driven by the lifting motor reducer 9 is the reapplication of the prior art, and the specific structure will not be described again.

[0020] The top of the base 1 is provided with a driving device for driving the lower moving crossbeam 22 to move up and down, and the driving device is provided with an eccentric adjusting device. The base 1 is fixedly provided with a counting sensor 30 matched with the driving device. The driving device includes a main power motor 2 fixedly arranged at the top of the base 1 and a double-shaft main shaft box 27. The output end of the main power motor 2 is fixedly provided with a driving synchronous wheel 25. One output end of the double-shaft main shaft box 27 is fixedly provided with a driven synchronous pulley 26. The driving synchronous wheel 25 and the driven synchronous pulley 26 are connected through a synchronous belt 3. The other output end of the double-shaft main shaft box 27 is fixedly provided with an eccentric rotating wheel 19. The eccentric rotating wheel 19 is provided with an eccentric adjusting device. The bottom of the lower moving crossbeam 22 is fixedly provided with a pulling rod connecting piece 17. The eccentric adjusting device is connected with the pulling rod connecting piece 17 through a pulling rod 18. The counting sensor 30 is matched with the driven synchronous pulley 26.

[0021] In the embodiment, the main power motor 2 rotates and drives the double-shaft main shaft box 27 to rotate through the driving synchronous wheel 25, the synchronous belt 3 and the driven synchronous pulley 26. The double-shaft main shaft box 27 drives the eccentric rotating wheel 19 to rotate. The eccentric rotating wheel 19 drives the pulling rod 18 and the lower moving crossbeam 22 to move reciprocally in the vertical direction under the action of the slidingly connected lower guiding sleeve 7 and guiding shaft 6 while rotating, and pulls the shock absorber 15 to move synchronously, so as to test the work performance of the shock absorber. In the embodiment, the displacement sensor 5, the load sensor 13 and the counting sensor 30 are connected with the automatic control system to record the displacement, force value and test times. In the embodiment, the automatic control system is the reapplication of the prior art, and will not be described again.

[0022] The eccentricity adjusting device comprises two slide rails 29 arranged in parallel on the eccentric rotating wheel 19 and eccentricity adjusting sliders 20, the eccentricity adjusting sliders 20 are in sliding connection with the two slide rails 29, the eccentric rotating wheel 19 is rotatably arranged between the two slide rails 29, the eccentricity adjusting lead screw 21 is arranged on the eccentric rotating wheel 19, the eccentricity adjusting lead screw 21 penetrates through the eccentricity adjusting sliders 20 and is in threaded connection with the eccentricity adjusting sliders 20, the eccentricity adjusting sliders 20 are rotatably connected with one end of the pulling rod 18, and the other end of the pulling rod 18 is rotatably connected with the pulling rod connecting piece 17.

[0023] In the embodiment, the eccentricity adjusting device is used for adjusting the strength of the performance test of the shock absorber 15 by adjusting the amplitude of the vertical reciprocating movement of the pulling rod 18 and the shock absorber 15.

[0024] In conclusion, the utility model is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications without departing from the spirit and scope of the utility model. The protection scope of the utility model should be subject to the claims of the utility model.

[0025] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the patent.

[0026] In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arranging" should be understood in a broad sense, for example, can be fixedly connected, arranged, or can be detachably connected, arranged, or integrally connected, arranged. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.

Claims

1. A shock absorber performance tester characterized by comprising: The utility model provides a kind of automatic loading and unloading device, including base (1), the top of the base (1) is fixedly provided with workbench (24) by support column (4), the top of the workbench (24) is vertically provided with two guide shafts (6), the top of two guide shafts (6) is connected by crossbeam (28), the upper end and the lower end of the guide shaft (6) are slidably provided with upper guide sleeve (8) and lower guide sleeve (7) respectively, upper moving crossbeam (12) is arranged between two upper guide sleeves (8), and the bottom of the upper moving crossbeam (12) is connected with upper connecting seat (14) by load sensor (13), lifting adjusting device for driving the upper moving crossbeam (12) to move up and down is arranged on the crossbeam (28), lower moving crossbeam (22) is arranged between two lower guide sleeves (7), and the top of the lower moving crossbeam (22) is provided with lower connecting seat (16), driving device for driving the lower moving crossbeam (22) to move up and down is arranged on the top of the base (1), eccentric adjusting device is arranged on the driving device, and counting sensor (30) matched with driving device is fixedly arranged on the base (1), displacement sensor (5) is fixedly arranged on the bottom of the workbench (24), and the output end of the displacement sensor (5) penetrates workbench (24) and is fixedly connected with lower moving crossbeam (22) by connecting support (23).

2. A shock absorber performance tester as set forth in claim 1, wherein The driving device includes driving motor (2) and double-shaft main shaft box (27) fixedly arranged on the top of the base (1), the output end of the driving motor (2) is fixedly provided with driving synchronous wheel (25), one output end of the double-shaft main shaft box (27) is fixedly provided with passive synchronous pulley (26), the driving synchronous wheel (25) and the passive synchronous pulley (26) are connected by synchronous belt (3), the other output end of the double-shaft main shaft box (27) is fixedly provided with eccentric rotating wheel (19), the eccentric rotating wheel (19) is provided with eccentric adjusting device, and the bottom of the lower moving crossbeam (22) is fixedly provided with pull rod connecting piece (17), and the eccentric adjusting device is connected with the pull rod connecting piece (17) by pull rod (18).

3. A shock absorber performance tester as set forth in claim 2 wherein, The eccentric adjusting device includes two slide rails (29) and eccentric adjusting slider (20) arranged in parallel on the eccentric rotating wheel (19), the eccentric adjusting slider (20) is slidably connected with the two slide rails (29), the eccentric rotating wheel (19) between the two slide rails (29) is rotatably provided with eccentric adjusting screw (21), the eccentric adjusting screw (21) penetrates the eccentric adjusting slider (20) and is threadedly connected therewith, one end of the pull rod (18) is rotatably connected with the eccentric adjusting slider (20), and the other end of the pull rod (18) is rotatably connected with the pull rod connecting piece (17).

4. A shock absorber performance tester as set forth in claim 3 wherein, The lifting adjusting device comprises a lifting motor (11), a lifting motor speed reducer (9) and a lifting adjusting screw (10), the lifting motor (11) and the lifting motor speed reducer (9) are fixedly arranged on the cross beam (28), the output end of the lifting motor (11) is fixedly connected with the input end of the lifting motor speed reducer (9), the lifting adjusting screw (10) penetrates through the lifting motor speed reducer (9) and is in transmission cooperation with the lifting motor speed reducer (9), and the lower end of the lifting adjusting screw (10) is rotationally connected with the upper moving cross beam (12).

5. A shock absorber performance tester as set forth in claim 2, wherein The counting sensor (30) is matched with the passive synchronous pulley (26).

6. A shock absorber performance tester as set forth in claim 1, wherein The upper connecting seat (14) and the lower connecting seat (16) are respectively hingedly connected with two ends of the shock absorber (15).

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