A ball bearing life test device and method thereof

Abstract

The invention belongs to the technical field of ball bearing test, and in particular relates to a ball bearing life test device and a method thereof, comprising a torsion bar shaft, a torsion arm, a connecting rod and a frame, and the torsion bar shaft is arranged on the frame , the torsion bar shaft is connected to the torsion arm, the end of the torsion arm is connected to the outer ring or inner ring of the tested ball bearing, the connecting rod is connected to the inner or outer ring of the tested ball bearing, and also includes a reciprocating drive mechanism, reciprocating The driving mechanism drives the connecting rod to move back and forth, and drives the tested ball bearing and the torsion arm to rotate along the axis of the torsion bar shaft. The test mechanism, in which, the reciprocating movement of the connecting rod is driven by the reciprocating drive mechanism, and the radial and torsional working condition simulation of the tested ball bearing can be realized. Compared with the current ball bearing test equipment, the structure of the present invention is greatly simplified. And the test results that can be achieved are consistent.

Description

technical field [0001] The invention belongs to the technical field of ball bearing tests, and in particular relates to a ball bearing life test device and a method thereof. Background technique [0002] Ball bearings usually have two types of metal bearings and rubber nodes. They are widely used in the field of mechanical engineering, especially in various suspension components of rail vehicles. Their main function is to connect various components and provide deflection , torsional degree of freedom, and bears radial load, so it mainly involves radial, deflection, and torsion three-way composite working conditions. This type of product usually requires a bench test to verify its reliability. The bench test can easily realize one-way and two-way tests, and the three-way test is difficult to achieve due to instability and space interference, and usually requires complex tooling to assist the test. Generally, it is mainly realized by relying on the hinged structure to assist ...

AI Technical Summary

Problems solved by technology

This type of product usually requires a bench test to verify its reliability. The bench test can easily realize one-way and two-way tests, but the three-way test is difficult to achieve due to instability and space interference, and usually requires complex tooling to assist the test. Generally, it is mainly realized by relying on the hinged structure to assist some guide rail mechanisms to limit the position, involving more than dozens of parts, the structure is very complicated, and the test accuracy is low.

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