Loading device for tribological testing of rolling bearings

Abstract

The present invention relates to the field of tribological tests. In order to improve the tribological test precision of a rolling bearing, the invention provides a load loading device for a rolling bearing tribological test. The device comprises a support device and a loading mechanism. The support device comprises a base, a rotation shaft support, and a support rotation shaft. The support rotation shaft is installed on the rotation shaft support and is sleeved by a T-shaped support ring and locking nuts. In a test, a rolling bearing is pressed and buckled by the T-shaped support ring, and the locking nuts are locked and fixed at two sides of the rolling bearing. The loading mechanism comprises an electromagnetic iron core and a magnetic conducting ring in a same plane. Two magnetic poles of the electromagnetic iron core face the support rotation shaft from side directions and are in a vertical symmetry at the horizontal diameter of the rolling bearing, magnetic pole end faces are an arc surfaces, and the arc surfaces and the support rotation shaft are concentric. The magnetic conducting ring sleeves the T-shaped support ring, and air gaps are arranged between the magnetic conducting ring and the magnetic pole end faces of the electromagnetic iron core. When the load loading device for a rolling bearing tribological test is used to carry out a rolling bearing friction test, the test precision is high.

Description

technical field [0001] The invention relates to the field of tribological tests, in particular to a load loading device used for tribological tests on rolling bearings. Background technique [0002] When performing tribological tests on rolling bearings, it is necessary to load the rolling bearings. At present, when conducting tribological tests on rolling bearings, the load loading device is directly in contact with the rolling bearing and applies axial load or radial load to the rolling bearing to generate load. However, during the test, the vibration caused by the high-speed rotation of the rolling bearing often causes the point of action of the axial load or radial load to shift, which affects the accuracy of the load loaded in the test, and then affects the accuracy of the test results. In addition, since the load loading device loads the rolling bearings by directly contacting the rolling bearings, this loading method will generate static loads on the loading contact ...

AI Technical Summary

Problems solved by technology

However, during the test, the vibration caused by the high-speed rotation of the rolling bearing often causes the point of action of the axial load or radial load to shift, which affects the accuracy of the load loaded in the test, and then affects the accuracy of the test results.

In addition, since the load loading device loads the rolling bearing through direct contact with the rolling bearing, this loading method will generate static load on the loading contact surface, which will affect the accuracy of the load loaded in the test, thereby affecting the accuracy of the test results

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