Slip testing apparatus for high-speed rolling bearing

Abstract

The invention discloses a slip testing apparatus for a high-speed rolling bearing. The apparatus comprises a high speed electric spindle and a low speed electric spindle, wherein the high speed electric spindle and the low speed electric spindle are arranged on a support and axial directions of the two spindles are opposite to each other; a movable bearing and a loading mechanism having a force sensor are arranged between a base plate of the high speed electric spindle and the support. A rolling element is connected with a front end of the high speed electric spindle; a ring body of a tested bearing is connected with a front end of the low speed electric spindle; and a radial load is exerted on the ring body of the tested bearing by the rolling element through the loading mechanism. The high speed electric spindle and the low speed electric spindle are provided with displacement sensors for determining rotating speeds; frequency converters are connected with the high speed electric spindle and the low speed electric spindle; and a data collection processing system controls rotating speeds of the high speed electric spindle and the low speed electric spindle through the frequency converters. And a lubricating device and an infrared temperature measuring device are arranged nearby a contacting portion where the ring body of the tested bearing and the rolling element are contacted; the infrared temperature measuring device inputs a collected oil film temperature signal or a collected contacting portion temperature signal to the data collection processing system; and the forcesensor inputs a loading signal to the data collection processing system through a signal amplifier.

Description

technical field [0001] The invention belongs to a bearing test device, in particular to a high-speed rolling bearing slip test device. Background technique [0002] Rolling bearings are an important mechanical basic part that is widely used. The development of modern industry has put forward higher requirements for the working performance of rolling bearings, and bearings with high speed and long life are more and more favored by users. However, the slipping and scratching of light-loaded bearings under high-speed conditions have always been the key factors affecting the service life of bearings. Therefore, it is particularly important to study and analyze the sliding failure mechanism of high-speed rolling bearings. At present, most of the existing technologies and experimental methods take the whole rolling bearing as the research object for analysis. Due to the complexity of the influencing factors of the rolling bearing and the uncertainty of the movement of the rollin...

AI Technical Summary

Problems solved by technology

At present, most of the existing technologies and experimental methods take the whole rolling bearing as the research object for analysis. Due to the complexity of the influencing factors of the rolling bearing and the uncertainty of the movement of the rolling elements in the bearing, the results obtained by the above methods are often not very accurate and cannot be very good. Uncover the essential mechanism of rolling bearing slipping and failure

At the same time, slipping does not necessarily cause bearing slippage to cause surface wear and overall failure

From the analysis of the existing literature, it can be seen that there is a lack of research on the mechanism of bearing scratches caused by the combination of slip factors.

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