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Canted-coil spring fatigue test bench

A technology of inclined coil spring and fatigue test, which is applied in the direction of elasticity test, machine/structural component test, measuring device, etc., can solve the problems of worn inclined coil spring, noise generation, measurement error, etc., and achieve reduction of friction and Noise, wear and error reduction effects

Active Publication Date: 2018-08-24
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing canted coil spring fatigue test bench, when the canted coil spring is eccentrically loaded, friction or some other factors will cause measurement errors; some canted coil spring fatigue test benches cannot carry out fatigue tests for different types of canted coil springs, and special testing is required customization; during the fatigue test, the canted coil spring will be worn out and noise will be generated

Method used

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  • Canted-coil spring fatigue test bench
  • Canted-coil spring fatigue test bench
  • Canted-coil spring fatigue test bench

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] A kind of inclined coil spring fatigue test bench of the present invention, as figure 1 As shown, a canted coil spring fatigue test bench is characterized in that it includes a base 23, and the base 23 is fixed with a sequentially connected sensing device 40, a bearing assembly 41 and a clamping device 42 for clamping the spring to be tested , An eccentric shaft device 43 is connected between the bearing assembly 41 and the clamping device 42 .

[0033] Such as figure 2 As shown, the sensing and detecting device 40 includes a rotary encoder 1, a brake 2, a stepper motor 3, and a torque sensor 6 connected in sequence, and the sensing and detecting device 1 also includes a laser distance sensor 19, and the laser distance sensor 19 is located at the eccentric shaft device 43 On one side, the laser distance sensor 19 is fixed on the bas...

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Abstract

The invention discloses a canted-coil spring fatigue test bench, which comprises a base. A sensing detection device, a bearing assembly and a clamping device for clamping a spring to be tested, whichare connected in sequence, are fixedly arranged on the base; an eccentric shaft device is connected between the bearing assembly and the clamping device; and the sensing detection device is used for collecting load torque and judging eccentric distance of the eccentric shaft device. Through cooperative use of fastening screws at the two sides of a slide block and a laser distance sensor, and meanwhile, through a high-precision guide rail and a linear slide block, when the eccentric distance of the eccentric shaft device is adjusted, errors caused by friction or other factors can be reduced.

Description

technical field [0001] The invention belongs to the technical field of fatigue test equipment, and relates to a fatigue test bench for inclined coil springs. Background technique [0002] The canted coil spring has a special load-deformation curve, high allowable compression, and can still maintain a nearly constant force in a large range when there is a bias deviation, and has a high flow capacity and Very good technical economy and many other excellent characteristics. Therefore, canted coil springs are widely used in aerospace, energy industry, power industry, medical equipment and many other fields as power connectors and sealing parts. [0003] The advantages and disadvantages of the reliability life and fatigue life of the canted coil spring will have a crucial impact on its application effect. When the inclined coil spring bears the load of alternating stress in the radial direction, the reciprocating action of the material is lower than the tensile strength limit, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
CPCG01M5/0033
Inventor 王建平黄悦王东马世豪郭孟飞
Owner XIAN UNIV OF TECH
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