Static stiffness testing device for telescopic shock absorber superposition valve

A technology of testing device and superimposed valve, applied in the direction of measuring device, machine/structural component testing, elasticity testing, etc., can solve the problems of product design requirements, calculation efficiency and accuracy are difficult to meet, and achieve high reliability of results, The effect of high versatility and simple test method

Active Publication Date: 2018-05-15
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods for testing the static stiffness of stacked valve plates include finite element method and analytical method, but it is difficult to meet the design requirements of the product in terms of calculation efficiency and accuracy

Method used

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  • Static stiffness testing device for telescopic shock absorber superposition valve
  • Static stiffness testing device for telescopic shock absorber superposition valve
  • Static stiffness testing device for telescopic shock absorber superposition valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The structural cross-sectional view of a static stiffness test device for a stacked valve plate of a cylindrical shock absorber is shown in figure 1 As shown, the whole device includes upper fixture 1 and lower fixture 2.

[0034] The three-dimensional diagram of the structure of the upper fixture 1 is as follows figure 2 As shown, it includes an adjustable upper clamp seat 101 , a threaded hole 102 , a force applying claw 103 , and an adjustment rod 104 .

[0035] In the adjustable upper clamp seat 101, the force applying claws 103 are embedded in eight chute 105, the movement of the force applying claws 103 in the chute 105 is adjusted through the worm gear mechanism, and the adjusting rod 104 is directly connected to the worm gear mechanism.

[0036] The three-dimensional diagram of the structure of the lower fixture 2 is as follows image 3 As shown, it includes a lower fixture seat 201, a positioning rod 202, an adjustable support seat 203, a superimposed valve ...

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PUM

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Abstract

The invention relates to a testing device for a telescopic shock absorber. The device comprises an upper fixture and a lower fixture, wherein the upper fixture comprises an adjustable upper fixture seat, a force application claw and an adjustment lever; the adjustable upper fixture seat is capable of realizing fixed installation of the upper fixture on a test bed; the adjustment lever and the force application claw are capable of realizing equivalent force application of a superposition valve; the lower fixture comprises a lower fixture seat, a positioning rod, an adjustable supporting seat, the superposition valve, a gasket, a pressure pad, a nut and an adjustment lever; the lower fixture seat is a mounting base of the superposition valve; the positioning rod is a cylindrical guide mechanism and is capable of realizing positioned installation of the adjustable supporting seat, the superposition valve, the gasket, the pressure pad and the nut; and the adjustable supporting seat realizes support of the superposition valve, the superposition valve is constrained by utilizing the upper-end gasket and the lower-end gasket, and radial displacement adjustment of the supporting claw is realized by the adjustment lever. The device is capable of characterizing stiffness of the valve by virtue of a relation between the force and displacement. The device has the advantages of being simplein structure, convenient to use and excellent in universality.

Description

technical field [0001] The invention relates to a shock absorber testing device, in particular to a static stiffness testing device for stacked valve plates of a cylindrical shock absorber. Background technique [0002] The car suspension is mainly composed of elastic components, guide mechanisms and shock absorbers. Elastic components, such as air springs, coil springs, etc., mainly play the role of easing the impact of the road. The shock absorber is installed between two points with mutual displacement to absorb the vibration and impact kinetic energy from the ground and release it in the form of heat energy to attenuate vibration and impact. When there are only elastic components in the car suspension without shock absorbers, the ground impact energy will attenuate slowly, and the vibration of the vehicle body will be prolonged for a long time. Therefore, the shock absorber is an important part of the car, and its performance directly affects the ride comfort and handl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
CPCG01M5/005Y02E30/30
Inventor 张志勇潘达曹树星
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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