Fatigue life testing machine for outer spherical bearings with seat

Abstract

The invention discloses a special fatigue life tester for an insert bearing with housing. The special fatigue life tester is applicable to the fatigue life tests of the insert bearings with housing having the inner diameters in the range of phi 20-60mm, and comprises a frame, a test head component, a drive system, a loading system, a signal amplifier, a temperature sensor, a vibration sensor and a computer monitoring system. The loading system, the test component and the drive system are all fixed on the frame; the drive system is connected with the test head component; the loading system is used for loading a radial load on a tested bearing; the temperature sensor and the vibration sensor are mounted on each test bearing, and both are connected with the computer monitoring system by use of the signal amplifier. The computer monitoring system is used for displaying the temperature, the vibration value, the rotating speed, the accumulated test time and the vibration time-domain and frequency-domain graphs of the tested bearing, and is capable of realizing automatic shutdown in case of the temperature value or the vibration value of the tested bearing exceeds a threshold. The special fatigue life tester for the insert bearing with housing is simple to operate; the test result satisfies the practical use condition of the insert bearing with housing, and meanwhile, the test period is greatly reduced and the test cost is saved.

Description

technical field [0001] The invention relates to a device for testing the fatigue life of an outer spherical bearing with a seat, in particular to a service life of an outer spherical bearing with a seat that is simple to operate and whose test results meet the actual use conditions of the test bearing. At the same time, the test cycle can be greatly shortened and the test cost can be saved. Test equipment. Background technique [0002] Rolling bearings are one of the most widely used key basic parts in various types of machinery. The service life of rolling bearings is an important performance index of bearings, and the service life of bearings directly affects the performance of mechanical systems. When the service life of the rolling bearing is short, it will affect the continuity of use of the mechanical system and increase additional use costs. [0003] The outer spherical bearing with seat is a rolling bearing unit that combines a rolling bearing with a housing. Most...

AI Technical Summary

Problems solved by technology

However, at present, domestic studies on the life and reliability tests of spherical bearings with housings are relatively insufficient, and there is no special testing machine to meet the test requirements.

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