Simulation test method of rotating outer ring/fixed inner ring rolling bearing

Abstract

The invention relates to a simulation test method of a rotating outer ring / fixed inner ring rolling bearing. The bearing test device is composed of a drive motor (1), a coupling (2), a rear pivot bearing (3), an outer ring shaft (4), a front pivot bearing (5), a sliding guide rail (6), a loading hydro-cylinder (8), a hinge I (9), an inner ring shaft (10), a hinge II (11), a spring (12) and a loading sleeve (13), wherein the outer ring of a test bearing (7) is installed in a cantilever end outer sleeve of the outer ring shaft; the inner ring of the test bearing is installed on the inner ring shaft; the inner ring shaft is fixed on the loading sleeve; the loading hydro-cylinder directly loads the test bearing in the radial direction by using the loading sleeve; and the axial holddown spring, the sliding guide rail, the hinge II and the like are utilized to realize axial positioning of the test bearing and reduce the interference of the radial force, thereby completely simulating the simulation test method of the rotating outer ring / fixed inner ring rolling bearing. The invention can be used for carrying out property simulation tests on the test bearing according to the velocity spectrum and loading spectrum.

Description

technical field [0001] The invention relates to the technical field of bearing tests, and mainly relates to a rolling bearing simulation test method in which the outer ring rotates and the inner ring is fixed. Background technique [0002] Ordinary rolling bearings usually have an inner ring that rotates and an outer ring that is fixed, so the existing bearing testing machine can realize the inner ring rotation speed or loading range of the rolling bearing through the speed spectrum or load spectrum. [0003] The speed spectrum is all values ​​of the rolling bearing from 0 to the limit speed. [0004] The radial load generated by the rolling bearing is the main force load when it is working, and the rolling bearing does have radial clearance. A large radial clearance will cause greater vibration when the rolling bearing is working, which will affect the service life of the rolling bearing. Applying a certain radial load to the rolling bearing can eliminate the radial cleara...

AI Technical Summary

Problems solved by technology

[0006] In some applications, such as some aero-engines, the working condition of individual bearings is that the inner ring is fixed and the outer ring rotates. Due to the type and quantity of this type of bearing are very small, professional simulation tests are generally seldom carried out on it.

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