Axial loading device for bearing test

Abstract

The invention provides an axial loading device for a bearing test. The device comprises a damping unit, a loading unit, a clutch unit and a test bearing unit. According to the invention, the clutch unit is arranged, so that when a test bearing roller and an outer ring are glued at high temperature, the axial loading mechanism is quickly separated from the test bearing; and a linear actuator + lever + permanent magnet mode is adopted for loading, therefore, the purpose of accurately and continuously adjusting the axial force applied to the test bearing in a large range is achieved. Besides, a variable damping mechanism is arranged so that measurement anti-interference performance and measurement precision of the device can be enhanced, axial loading tests can also be performed on multiple types of bearings in one set of device, and the device is simple and reasonable in overall structure and low in manufacturing and use cost.

Description

technical field [0001] The invention belongs to the technical field of bearing testing equipment, and in particular relates to an axial loading device for bearing testing. Background technique [0002] Rolling bearings are widely used in various types of mechanical equipment due to their remarkable advantages. Their motion accuracy determines the accuracy and performance of mechanical equipment, but rolling bearings are also one of the key components that are most likely to fail in mechanical equipment. There are many failure modes of bearings, among which the failure mode caused by slipping accounts for the highest proportion of the total failure; when sliding occurs during rolling bearing operation, not only the friction coefficient increases, but also a large amount of heat is generated, which will affect the motion accuracy and mechanical properties of rolling bearings. Efficiency, but also reduce the service life of rolling bearings. By applying proper axial preload, t...

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Problems solved by technology

[0004] In order to solve the problem of continuous and accurate adjustment of the axial load within a certain range in the bearing test, the invention provides an axial loading device for the bearing test, which aims at the axial loading device used in the existing bearing test in the test bearing The problem that the outer ring and the roller cannot be separated from the test bearing in time when they are glued together at high temperature, a clutch unit is set in the axial loading device; A lever mechanism is set in the axial loading device; in order to solve the problem that the vibration generated during the test affects the precise quantitative loading of the axial force, a variable damping unit is set

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