Coatings rolling contact fatigue tester

A rolling contact fatigue and testing machine technology, which is applied in the direction of testing wear resistance, using mechanical devices, measuring devices, etc., can solve the problems of insufficient test efficiency and achieve high-efficiency testing, convenient operation, and high reliability.

Inactive Publication Date: 2009-03-25
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is only used as a rolling friction test with only one contact point, the test efficiency is not high enough, and it can only be carried out under non-lubricated conditions

Method used

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  • Coatings rolling contact fatigue tester
  • Coatings rolling contact fatigue tester
  • Coatings rolling contact fatigue tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] As shown in Figures 1-3, the coating rolling contact fatigue testing machine of the present invention includes a base 23 fixed on the frame 5, a transmission mechanism installed on the base 23, a test device, a loading mechanism, a lubrication system, and information collection and control systems, of which:

[0022] The transmission mechanism includes a motor 32 and a transmission shaft 40. In this embodiment, the motor 32 is a variable frequency motor. The motor 32 is installed on one side of the base 23, and the transmission shaft 40 is installed on the base 23. A belt 29 connects the large pulley 31 on one side of the motor 32 and the transmission shaft 40, so that the rotation of the motor 32 can drive the transmission shaft 40 to rotate.

[0023] The test device is installed on the transmission shaft 40 above the base 23, and includes a test chamber 7, in which a lower flat washer placement frame 6, a lower flat washer 9, a cage 11, an upper flat washer are arrang...

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PUM

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Abstract

The invention relates to a coat rolling contact endurance testing machine, which comprises a tester, a loading mechanism, a driving mechanism, a lubrication system, and an information acquisition and control system. The coat rolling contact endurance testing machine has a simple structure, convenient operation and high reliability; in addition, because the testing machine is provided with a plurality of rolling elements, the testing machine has a plurality of contact points and can realize a high efficient test; besides; and through detecting vibration signals and monitoring the surface condition of the coat or a fraction pair, when micro-cracks are generated, the testing machine can pause the test and save the failure moment.

Description

technical field [0001] The invention relates to the field of material testing, in particular to a coating rolling contact fatigue testing machine. Background technique [0002] Contact fatigue damage is one of the main failure modes of mechanical contact parts. Rolling parts and friction parts are frequently used parts in mechanical operation. Since they are wearing parts, their life and contact fatigue performance is a very important indicator. Friction occurs when two objects in contact with each other move relative to each other or tend to move relative to each other under the action of an external force. According to the motion form of the kinematic pair, it can be divided into sliding friction and rolling friction. In today's research, most of the testing machines for sliding friction are used. The research on rolling contact mostly focuses on the fatigue performance of bearing balls. [0003] The application number is 200720039048.8, and the Chinese utility model p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N19/04
Inventor 张显程许金沙轩福贞
Owner EAST CHINA UNIV OF SCI & TECH
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