A bearing test method for angular contact bearings in which the inner and outer rings rotate simultaneously

Abstract

The invention provides an inner and outer ring simultaneous rotation angular contact bearing testing method. A testing device applied to the inner and outer ring simultaneous rotation angular contact bearing testing method is composed of an inner ring rotor shaft, a first axial loading bearing, a first axial loading device, a radial loading bearing, a radial loading device, an outer ring rotor shaft, a second axial loading bearing, a second axial loading device, a testing accompanying bearing, a sensor mounting rack and a non-contact sensor group. During testing, the inner ring rotor shaft and the outer ring rotor shaft rotate in the same or different directions at the same or different speeds; the first axial loading device exerts axial load onto the inner ring of a tested bearing through the first axial loading bearing, and the second axial loading device exerts axial load onto the outer ring of the tested bearing through the second axial loading bearing; the radial loading device exerted radial load onto the test bearing through the radial loading bearing; the inner ring non-contact sensor group monitors the operational state of the tested bearing.

Description

technical field [0001] The invention relates to the technical field of bearing testing, in particular to a testing method for an angular contact bearing in which an inner ring and an outer ring rotate simultaneously. Background technique [0002] Bearings are widely used core mechanical basic parts, widely used in various fields of national economy and national defense, and bearings are called "industrial joints" in the national economy. As a standardized and highly specialized product, bearings have complex working conditions. Sometimes even if the shape is the same or even the precision is high, it may not meet the actual requirements. Some special testing and testing equipment must be used to simulate the work. To test whether it meets the required technical requirements. Therefore, in the research and development process of bearings, the test of bearings is a very important link. [0003] The bearing test methods in the prior art can be roughly divided into three categ...

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Problems solved by technology

One is the test method that the inner ring rotates and the outer ring is fixed, because most of the working modes of ordinary bearings are that the inner ring rotates and the outer ring is fixed, so most of the existing bearing testing machines adopt this test method; the second is that the inner ring is fixed and the outer ring is fixed. The test method of outer ring rotation, such as Chinese patent "CN201010254885.X" discloses a "rolling bearing simulation test method with outer ring rotation and inner ring fixed", focusing on testing the bearing through two aspects of speed and radial load; the third is The test method for the simultaneous rotation of the inner ring and the outer ring, such as the test of the intermediate bearing of the aero-engine, but because the number of such bearings is small, and the difficulty of design and test is relatively high, so the existing technology for this type of bearing There are relatively few test methods and test machines

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