Device for bearing hydrogen embrittlement peeling reproducibility test

Abstract

The invention discloses a device for bearing hydrogen embrittlement peeling reproducibility test, which comprises a frame body, a power supply unit and a test shaft. The frame body is provided with a first bearing seat and a second bearing seat, and the test shaft passes through the first bearing seat and the second bearing seat; the test shaft and the first bearing seat are combined to form a first bearing groove for accommodating a bearing to be tested, the test shaft and the second bearing seat are combined to form a second bearing groove for accommodating a bearing to be tested, one end of the test shaft is provided with a driving part for driving the test shaft to rotate, and the other end of the test shaft is provided with a wiring terminal. A carbon brush communicated with the wiring terminal is arranged at the position, corresponding to the wiring terminal, of the frame body, and the two wiring ends of the power supply unit are electrically connected with the carbon brush and the end, away from the carbon brush, of the test shaft respectively. The device can effectively adapt to research and reproduction of the formation mechanism of abnormal hydrogen embrittlement, and is simple and compact in structure, high in test reliability and good in repeatability.

Description

Technical field [0001] The present invention relates to the field of bearing detection techniques. Background technique [0002] The bearings operating under normal conditions, there will be peeling under the action of contact fatigue stress, but its morphology and abnormal hydrogenamb are significantly different. The process of contacting fatigue under normal conditions is: Under a higher working load, after a large number of contact stress circulation, the next surface layer similar to high temperature tempering is first appeared in the black tissue, which appears in black tissue. The rolling direction has a white strip of about 30 °, and then there is a white strip with a rolling direction of 80 °, and finally cracks in the region. [0003] Abnormal hydroxisfunction varies from the tissue changes of the secondary surface origin flakes, and the hydrogen crispy and subsequent cracks are prioritized in the original grain boundary, which is irregular. Abnormal hydrogenamb fatigue ...

AI Technical Summary

Problems solved by technology

At present, there is an urgent need for a lot of research work on the formation mechanism of abnormal hydrogen embrittlement, but there is no professional test device for the reproduction of bearing hydrogen embrittlement spalling on the market, so that the research in this field cannot be carried out well, and the support of experimental data is lacking. Inability to carry out effective and targeted research

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