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Remanufactured part surface coating accelerated wear life testing machine and detection method thereof

A technology of surface coating and wear life, which is applied in the field of testing machines, can solve the problems of no coating acceleration, accelerated wear life, inability to accurately judge, etc., and achieve the effect of compact structure and good stability

Active Publication Date: 2012-05-23
ACADEMY OF ARMORED FORCES ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is impossible to accurately control industrial production and repair and replacement of parts without accurately judging its accelerated wear life.
[0003] At present, the testing machine on the market mainly compares and evaluates the wear performance such as the friction coefficient and wear amount of the surface coating of the part. There is no testing machine that can specifically relate to the accelerated wear life of the coating.

Method used

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  • Remanufactured part surface coating accelerated wear life testing machine and detection method thereof
  • Remanufactured part surface coating accelerated wear life testing machine and detection method thereof
  • Remanufactured part surface coating accelerated wear life testing machine and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figures 1 to 4 As shown, a remanufactured component surface coating accelerated wear life testing machine, the testing machine includes a friction drive part, a degree of freedom loading part and a signal test acquisition part;

[0041] The friction driving part is located between the upper top plate 4 and the lower bottom plate 1 (the upper top plate 4 and the lower bottom plate 1 are connected through the box bracket 2) including a motor drive system 15 to control the driving drive motor 19, the drive motor 19 is supported by the motor support 17 and placed On the bottom plate 16 of the friction pair; the driving motor 19 drives the driving wheel 18 to rotate, the driving wheel 18 and the driven wheel 25 are connected by a transmission belt 20, the driven wheel 25 is set outside the friction auxiliary main shaft 21 and drives it to rotate, the friction auxiliary main shaft 21 The upper end is provided with an upper bearing 22, and the lower end is provided wi...

Embodiment 2

[0067] Embodiment 2 Specific application example

[0068] In this specific embodiment, a high-velocity arc sprayed 3Cr13 coating is used as an experimental coating.

[0069] Before the experiment, according to the test requirements, the surfaces of the counter-grinding disc and counter-grinding pin to be detected were processed into planes, and then the 3Cr13 coating was sprayed on the bottom surface of the counter-grinding pin by high-speed arc spraying equipment, and the coating was kept at a certain level by grinding. thickness. Put the grinding pin into the front section of the loading lever and fix it with a nut, start the motor to adjust the speed, then load, start the signal acquisition device. The driving wheel of the variable frequency motor drives the small driven wheel and the friction sub-spindle to rotate through the transmission belt, and transmits the speed signal to the speed sensor.

[0070] According to the test requirements, when performing the dry frictio...

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Abstract

The invention discloses a remanufactured part surface coating accelerated wear life testing machine. The testing machine comprises a friction driving component, a freedom degree loading component and a signal test acquisition component. The invention introduces a displacement sensor and an acceleration sensor, increases characteristic parameters currently mainly including friction coefficient andwear quantity for judging the coating wear invalidation and enriches the means of accurately acquiring the wear life of spray coating. A test life data alarm value is set in advance; and when the alarm value is reached, data acquisition is automatically ended and a test report is generated so as to facilitate extraction of the wear life and provide original data for subsequent test research. The testing machine has compact structure and high stability and can implement long-time conventional wear life tests as well as accelerated wear tests under four acceleration conditions of heavy load, addition of micro-nano abrasive grains into lubricating oil, dry friction and high rotation speed by adjusting friction pair setting. The invention has good application prospect.

Description

technical field [0001] The invention relates to a testing machine, in particular to a testing machine for the accelerated wear life of the surface coating of remanufactured parts and a method for detecting the accelerated wear life of the surface coating of remanufactured parts. Background technique [0002] At present, the surface of remanufactured parts usually needs to be coated with wear-resistant coating, and the service life of wear-resistant coating directly affects the service life of remanufactured parts. At present, there is no method and device that can effectively detect the service time of the surface coating of remanufactured parts under the condition of accelerated wear. It is impossible to accurately control the maintenance and replacement of industrial production and parts without accurately judging its accelerated wear life. [0003] At present, the testing machines on the market are mainly for the comparison and evaluation of wear properties such as the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
Inventor 王海斗徐滨士濮春欢朴钟宇
Owner ACADEMY OF ARMORED FORCES ENG PLA
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