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Amplitude controllable material fretting wear test device

A fretting wear and test device technology, which is used in measuring devices, analyzing materials, testing wear resistance, etc., to achieve the effects of strong practicability, convenient operation, simple and reliable structure

Inactive Publication Date: 2018-06-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic fretting wear testing machines mostly use electric vibrator as the excitation source, and fretting displacement requires a set of more complicated devices to control

Method used

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  • Amplitude controllable material fretting wear test device
  • Amplitude controllable material fretting wear test device
  • Amplitude controllable material fretting wear test device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] See attached figure 1 , 2 , a material fretting wear test device with controllable amplitude, comprising: a base 25 and a frequency modulation motor 1 mounted on the base 25, a first circular slide rail frame 4, a second circular slide rail frame 34, a square slide rail frame 13 and an oil tank 26.

[0026] See attached figure 1 , figure 2 and Figure 4 A cylindrical cam 2 is coaxially installed on the output shaft of the frequency modulation motor 1, and by adjusting the speed of the frequency modulation motor 1, the specimen can be subjected to wear tests at different frequencies. The axial ends of the first circular slide rail 7 are respectively affixed to the first circular slide rail frame 4, thereby being supported on the first circular slide rail frame 4; the first linear bearing 5 with one end connected to the cam push rod 3 is support...

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Abstract

The invention relates to the technical field of wear tests, in particular to a material fretting wear test device. The amplitude controllable material fretting wear test device is characterized by comprising a frequency modulating motor, an oil tank, cylindrical cams, a cam push rod, a lever rod piece, an upper testing piece, a lower testing piece, an oil tank heating device and a pressure applying device. Through changing lever fulcrum position and selecting different cylindrical cams, thus fretting wear test under different motion amplitudes can be conducted. The motion frequency of the testing pieces can be decided by the frequency modulating motor, and tests with different frequencies can be conducted. Fretting wear tests under different pressure can be conducted by adjusting the pressure applying device, and oil lubricating fretting wear tests at different temperatures can be conducted by adjusting the heating device. The amplitude controllable material fretting wear test device is simple and reliable in structure, convenient to operate, and high in practicality.

Description

technical field [0001] The invention relates to the technical field of wear tests, in particular to a material fretting wear test device. Background technique [0002] Fretting refers to the small (micron level) relative reciprocating motion of two surfaces in contact with each other under a certain normal load. It usually exists in the "approximate fastening" mechanical fit under vibration conditions, such as bearings, Gears, splines, threaded connections, and between steel wires of bridge cables, etc. Fretting can cause wear on the contact surfaces, causing component seizure, loosening, power loss, increased noise, or the formation of pollution sources, etc. In view of the great harm of fretting wear to various devices, people pay more and more attention to the research on the mechanism of fretting wear of materials. Due to the complexity of the fretting wear mechanism of materials and the limitations of theoretical research, fretting wear tests are undoubtedly an effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/565
Inventor 李徐东覃文洁王倩文王敏
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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