Durability detection equipment for shock absorber assembly

Abstract

The utility model discloses durability detection equipment for a shock absorber assembly. The durability detection equipment for the shock absorber assembly comprises a rack, the rack is connected with a lifting plate through a first reciprocating mechanism, the first reciprocating mechanism has a stroke adjusting function, the upper portion of the lifting plate is provided with a first hinge seat, the lower portion of the lifting plate is provided with a second hinge seat, and the second hinge seat is hinged to a swing arm. A third hinge seat is arranged on the side, away from the second hinge seat, of the swing arm, the first hinge seat and the third hinge seat are used for installing a shock absorber assembly, and the rack is provided with a second reciprocating mechanism used for driving the swing arm to turn upwards to compress the shock absorber assembly. According to the utility model, the problem that the fatigue resistance of the shock absorber assembly under different amplitudes cannot be measured in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially relates to a shock absorber assembly endurance detection equipment. BACKGROUND

[0002] In order to make the vibration of frame and body rapidly attenuate, improve the smoothness and comfort of automobile driving, the shock absorber is generally equipped on the automobile suspension system. The working performance of shock absorber directly influences the smoothness of automobile driving and the life of other machine parts. If the shock absorber does not reach the use standard, will influence the brake, cause tire wear and other problems, serious still can make the automobile control failure, cause the safety accident. Since the shock absorber is in the working state and produces abrasion during the automobile driving, therefore, the endurance of shock absorber is the important link of product quality control.

[0003] The current endurance detection equipment adopts the crank connecting rod mechanism to repeatedly pressurize the shock absorber. However, only the crank connecting rod mechanism can only simulate one amplitude, and the fatigue strength of shock absorber under different amplitudes cannot be measured. UTILITY MODEL CONTENTS

[0004] The utility model discloses to aim at the deficiency of prior art, provide a shock absorber assembly endurance detection equipment that can simulate different amplitudes, thereby improve the fatigue strength detection accuracy of shock absorber assembly.

[0005] To achieve the above object, the utility model shock absorber assembly endurance detection equipment adopts the technical scheme of:

[0006] A shock absorber assembly endurance detection equipment, including frame, the frame is connected with the lifting plate through the first reciprocating mechanism, the first reciprocating mechanism has stroke adjustable function, the upper portion of lifting plate is provided with the first hinged seat, the lower portion of lifting plate is provided with the second hinged seat, the second hinged seat is hinged with the swing arm, the side away from the second hinged seat of swing arm is provided with the third hinged seat, and the first and third hinged seats are used to install shock absorber assembly, and the frame is provided with the second reciprocating mechanism, and is used to drive the swing arm to turn over and compress the shock absorber assembly.

[0007] Preferably, the first reciprocating mechanism includes a first motor, the output shaft of the first motor is fixedly connected with a first speed reducer, the first speed reducer is fixedly connected with the frame, the output shaft of the first speed reducer is fixedly connected with a lead screw, the both ends of the lead screw are rotatably connected with the frame, the middle part of the lead screw is threadedly connected with a sleeve, the sleeve is fixedly connected with the lifting plate through a connecting block, the both sides of the lifting plate are provided with sliding blocks, and the frame is fixedly connected with guide rails which are slidably connected with the sliding blocks.

[0008] Preferably, the second reciprocating mechanism comprises a second motor, the output shaft of the second motor is fixedly connected with a second speed reducer, the second speed reducer is fixedly connected with the rack, the output shaft of the second speed reducer is fixedly connected with a crank arm, the crank arm is connected with a top rod below the swing arm through a connecting rod, and the top rod is externally sleeved with a linear bearing fixedly connected with the rack.

[0009] Preferably, the top of the top rod is hemispherical.

[0010] Compared with the prior art, the shock absorber assembly durability detection equipment has the following advantages:

[0011] In the working process of the second reciprocating mechanism, by setting different strokes of the first reciprocating mechanism, the swing arm upturning angle is adjusted, so that different amplitudes can be simulated, and the detection accuracy of the fatigue resistance of the shock absorber assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a structural schematic view of the shock absorber assembly durability detection equipment of the utility model.

[0013] Fig. 2 is a structural schematic view of the first reciprocating mechanism.

[0014] Fig. 3 is a structural schematic view of the second reciprocating mechanism.

[0015] Wherein, 1 rack, 11 guide rail, 12 linear bearing, 2 first reciprocating mechanism, 21 first motor, 22 first speed reducer, 23 lead screw, 24 screw sleeve, 25 connecting block, 3 lifting plate, 31 sliding block, 32 first hinged seat, 33 second hinged seat, 4 swing arm, 41 third hinged seat, 5 shock absorber assembly, 6 second reciprocating mechanism, 61 second motor, 62 second speed reducer, 63 crank arm, 64 connecting rod, 7 top rod. DETAILED DESCRIPTION

[0016] The utility model is further illustrated below in combination with the drawings and specific embodiments, and it should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model, and after reading the utility model, various equivalent modifications of the utility model made by those skilled in the art all fall within the range defined in the claims of the application.

[0017] As Figs. 1-3As shown, a shock absorber assembly durability detection device, including rack 1, the left side of the rack is installed first reciprocating mechanism 2, the first reciprocating mechanism has stroke adjustable function, the first reciprocating mechanism includes first motor 21, the output shaft of first motor is fixed with first speed reducer 22, first speed reducer is fixed with rack, the output shaft of first speed reducer is fixed with lead screw 23, the both ends of lead screw are rotatably connected with rack through bearing seat, the middle part of lead screw is threadedly connected with sleeve 24, sleeve is fixed with lifting plate 3 through connecting block 25, the back of lifting plate is installed sliding block 31 on both sides, the rack is fixed with guide rail 11 matched with sliding block, the front upper part of lifting plate is installed first hinged seat 32, the front lower part of lifting plate is installed second hinged seat 33, second hinged seat is hinged with swing arm 4, the side away from second hinged seat of swing arm is installed third hinged seat 41, first and third hinged seats are used for installing shock absorber assembly 5, the right side of the rack is installed second reciprocating mechanism 6, for driving swing arm to turn up and compress shock absorber assembly, second reciprocating mechanism includes second motor 61, the output shaft of second motor is fixed with second speed reducer 62, second speed reducer is fixed with rack, the output shaft of second speed reducer is fixed with crank arm 63, crank arm is connected with top rod 7 below swing arm through connecting rod 64, top rod is sleeved with linear bearing 12 fixed with rack on the outside, the top of top rod is semispherical, so as to reduce abrasion.

[0018] The specific working process and principle of the utility model are as follows: the initial positions of the top rod and the lifting plate are adjusted in advance, the initial position of the top rod is set at the lowest position, and the initial position of the lifting plate is at a set height; when the lifting plate is at the height, the top rod just overlaps the swing arm and makes the swing arm horizontal, so that the shock absorber assembly can be conveniently installed between the first and third hinged seats in a natural state; after the shock absorber assembly is installed, the second motor can be started, the second motor drives the crank arm to rotate through the second speed reducer, the crank arm drives the top rod to move along the linear bearing in a reciprocating linear motion through the connecting rod, the top rod drives the swing arm to turn up and compress the shock absorber assembly when moving upwards, and the top rod moves downwards, so that the swing arm is restored by the compressed shock absorber assembly, thereby the durability (fatigue resistance) of the shock absorber assembly in a normal working state can be detected; when the durability of the shock absorber assembly in a more severe environment needs to be detected, the first motor can be started to drive the lifting plate to move downwards while the top rod moves upwards, so that the compression amount of the shock absorber assembly is increased by increasing the turning angle of the swing arm, and the lifting plate moves upwards after the top rod moves downwards, so that the swing arm is restored by the compressed shock absorber assembly, thereby the durability of the shock absorber assembly under a larger amplitude can be detected.

[0019] The utility model can detect the durability of the shock absorber assembly in a normal working state through the second reciprocating mechanism alone, or simulate different amplitudes through the cooperation between the first and second reciprocating mechanisms to detect the durability of the shock absorber assembly in a severe working state, thereby improving the detection accuracy of the durability of the shock absorber assembly.

Claims

1. A shock absorber assembly durability testing apparatus, characterized by: The first reciprocating mechanism has a stroke adjusting function, the upper portion of the lifting plate is provided with a first hinged seat, the lower portion of the lifting plate is provided with a second hinged seat, the second hinged seat is hinged with a swing arm, the side, away from the second hinged seat, of the swing arm is provided with a third hinged seat, the first and third hinged seats are used for mounting a shock absorber assembly, the frame is provided with a second reciprocating mechanism for driving the swing arm to turn upward to compress the shock absorber assembly.

2. The shock absorber assembly endurance testing apparatus of claim 1, wherein: The first reciprocating mechanism comprises a first motor, the output shaft of the first motor is fixedly connected with a first speed reducer, the first speed reducer is fixedly connected with the frame, the output shaft of the first speed reducer is fixedly connected with a lead screw, the two ends of the lead screw are rotationally connected with the frame, the middle portion of the lead screw is threadedly connected with a threaded sleeve, the threaded sleeve is fixedly connected with the lifting plate through a connecting block, the two sides of the lifting plate are provided with sliding blocks, the frame is fixedly connected with guide rails which are slidably connected with the sliding blocks.

3. The shock absorber assembly endurance testing apparatus of claim 1, wherein: The second reciprocating mechanism comprises a second motor, the output shaft of the second motor is fixedly connected with a second speed reducer, the second speed reducer is fixedly connected with the frame, the output shaft of the second speed reducer is fixedly connected with a crank arm, the crank arm is connected with a top rod below the swing arm through a connecting rod, the outer side of the top rod is sleeved with a linear bearing which is fixedly connected with the frame.

4. The shock absorber assembly endurance testing apparatus of claim 3, wherein: The top portion of the top rod is in a semispherical shape.

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