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Device for measuring high-speed electrical sliding wear

A technology for measuring devices and electrical wear, which is applied in the direction of measuring devices, adopting mechanical devices, testing wear resistance, etc., and can solve problems such as the detection of electrical wear of materials that cannot slide electrical contacts

Inactive Publication Date: 2007-08-01
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to accurately and effectively test the amount of electrical wear, it is necessary to combine the measurement of electrical properties with pure mechanical wear. Due to the existence of complex physical, chemical, electrical and thermal phenomena, there is currently no combination of the two in China. Therefore, it is impossible to effectively detect the amount of electrical wear of sliding electrical contact materials

Method used

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  • Device for measuring high-speed electrical sliding wear
  • Device for measuring high-speed electrical sliding wear
  • Device for measuring high-speed electrical sliding wear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] The high-speed motor 6 and the copper plate 9 rotating at high speed (not less than 200km / h) are fixed on the cast iron base 5 with excellent shock absorption performance. Fasten the tested material to the sample holder 11 with bolts, add a certain load to the tested material through the weight 14, and the load makes the displacement sensor 15 (measuring the amount of mechanical wear in the normal direction) press the sample holder 11 And keep the measured material in line contact with the copper wire 16 on the copper plate 9, adjust the fastening screw on the load transmission rod 10 to ensure that the sample holder 11 does not rotate during the test. After the power is turned on, a large current is introduced into the copper plate 9 through the graphite brush block 7, and the material to be tested (the other end connected to the power supply) mechanically wears out the copper wire 16 fixed on the copper plate 9 under the action of the weight 14, and The generation of ...

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Abstract

This invention discloses one high speed slide electrical friction loss measurement device, which comprises electrical loss mechanic device, power control part, resistance box and test meter, wherein, the mechanic device forms loop circuit between copper disc and test materials through high speed rotation copper disc and slide electrical contact materials to make the test materials generate electrical arc erosion by relative motion to test for one load charge, one line or weight friction loss and rotation ring number; the power control part is to provide direct power to the mechanic device and the resistance box is to adjust interface friction mechanic device current size.

Description

technical field [0001] The invention belongs to the technical field of material detection and relates to a measuring device for material detection, in particular to a measuring device for detecting the amount of electrical wear of a sliding electrical contact material. Background technique [0002] Electrical contact materials are called the "heart" of electrical components because they undertake the functions of connecting, carrying and breaking normal current and fault current in the circuit. Therefore, the reliability of electrical contact materials is particularly important. For sliding electrical contact materials that not only transmit current but also bear a certain friction and wear performance in practice, its electrical wear performance is an important index. The amount of electrical wear refers to the amount of mechanical wear under the action of a unit of electricity. In order to accurately and effectively test the amount of electrical wear, it is necessary to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N19/00G01N33/00
Inventor 陈文革胡可文罗启文
Owner XIAN UNIV OF TECH
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