Rolling mill bearing fault diagnosis and service life evaluation simulation test bench

Abstract

The invention provides a rolling mill bearing fault diagnosis and service life evaluation simulation test bench, and the test bench comprises a motor, a main shaft, a coupler, a hydraulic loading system, a supporting system, a rolling mill bearing, a rolling mill bearing seat assembly, an acceleration sensor and a bottom plate; the rolling mill bearing and the rolling mill bearing seat assembly are mounted in the middle of the main shaft; supporting springs and arc-shaped supporting plates are arranged at the bottom of the rolling mill bearing seat assembly and can isolate vibration of rolling mill bearings, the two ends of the main shaft are supported by the supporting system, the hydraulic loading system applies radial loads to the rolling mill bearings, and the motor is connected with the main shaft through a coupler. The test bench can simulate the load condition applied to the rolling mill bearing when the rolling mill works, and can perform fault tests of different combinations or service life tests of the same working condition on the two rolling mill bearings at the same time. The reliability of the test is ensured, the influence of other components except the rolling mill bearing on the test is reduced, and the stability of the test is improved.

Description

technical field [0001] The invention belongs to the technical field of bearing fault diagnosis and life test, and in particular relates to a rolling mill bearing fault diagnosis and life evaluation test bench. Background technique [0002] Bearings, as the key components that provide support in rotating equipment, have an important impact on the working performance and service life of the equipment. However, under the combined effects of internal and external factors, some subtle defects gradually evolve into faults during the operation of the bearing, and the performance will gradually decline until it finally fails. Bearing fault diagnosis and life evaluation test bench can not only carry out fault test, but also carry out life evaluation. Collecting relevant information of bearings in normal state or fault state, or the entire life cycle, helps testers to grasp the fault evolution law and life test information of bearings during operation, so as to provide assistance for...

AI Technical Summary

Problems solved by technology

The existing bearing life test bench cannot simulate the load conditions of the rolling mill during the rolling process, and can only perform fault tests and life tests on a single bearing, which cannot meet the test requirements for fault diagnosis and life evaluation of rolling mill bearings

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