Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine

A fretting wear and test method technology, applied in the direction of testing wear resistance, using mechanical devices, measuring devices, etc., can solve problems such as no research on torsional fretting wear, and achieve small errors, few motion links, and constant amplitude. Effect

Inactive Publication Date: 2005-10-26
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the study of torsional fretting wear and the related torsional fretting wear tester
However, there are fretting wear in the form of torsion in the approximate "stationary" fits such as fixed and tightly fitted shaft sleeves of artificial joints.

Method used

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  • Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine
  • Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine
  • Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine

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Embodiment Construction

[0019] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0020] The twisting and fretting wear test method of the present invention that produces tiny amplitudes adopts a cantilever swing device composed of a cam 1, a cantilever elastic thin plate 2, a small thin plate 3 and a swing rod 5, and a load balance device provided with a torque sensor 11. According to the cantilever beam The principle of elastic bending and leverage ratio amplification to obtain small swing amplitudes, such as figure 1 As shown, the eccentricity of the cam 1 is set as e, the length of the cantilever elastic thin plate 2 from the fixed point to the center distance of the cam 1 is L, and the distance from the center distance of the fixed small thin plate 3 is l, so that the small amplitude satisfies: v = e · l 2 ...

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Abstract

The invention is the twist abrasion testing method with small swing and the tester, and is suitable for the research of the abrasion state of between the solid materials. The invention adopts the cantilever swing device composed of the cam, the cantilever elastic board, the mini sheet and the swinging rod and the loading parallel device with the sensor. Set the eccentric distance of the cam, the length of the cantilever elastic board and the fixing position of the mini sheet of the swinging rod. Use the direct driving method to make the cantilever elastic board produce drive the bracket to produce small swing under the cam pushing, in order to wear the twist between the samples. The tester has few moving processes, big driving force, stable swing, small error and simple structure.

Description

technical field [0001] The invention relates to a twisting and fretting wear test method and a testing machine which generate tiny amplitudes, and is especially suitable for studying the friction and wear state between solid materials under the condition of twisting and fretting. Background technique [0002] Fretting wear is a kind of damage mode existing in nearly "static" mechanical parts, and the damage caused by it is also very large. The definition of fretting wear is: under a certain normal load, if there is a small relative vibration between two surfaces in contact with each other, the damage phenomenon that occurs on the contact surface. [0003] According to different relative motion directions of fretting wear, fretting has four basic operation modes, namely: (1) tangential fretting, or translational fretting, is the most commonly studied fretting mode; (2) radial fretting fretting; (3) rolling fretting; (4) twisting fretting. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 张德坤葛世荣
Owner CHINA UNIV OF MINING & TECH
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