Automatic diagnosing system for rolling bearing fault

Abstract

The invention relates to a rolling bearing error auto diagnose system. It takes testing analysis and kurtosis analysis to the bearing vibration, and calculates the kurtosis by virtual device and DSP, analyzes and compares the spectral configuration to accurately measure the acceleration and speed of bearing vibration, and achieve accurate analysis to automatically judge the place of the error.

Description

Technical field: [0001] The invention relates to the technical field of bearing vibration testing and fault diagnosis, in particular to a rolling bearing fault automatic diagnosis system. Background technique: [0002] Rolling bearings are the most widely used general-purpose mechanical parts in various rotating machines. Many faults are related to the state of the bearings. The signals of rolling bearings are analyzed and processed to accurately identify the location of bearing faults, thereby improving bearing life and reliability. It provides a powerful means for vibration and noise reduction of the sex and roller bearings. [0003] Chinese invention patent CN1456872 discloses a diagnostic method for gear and rolling bearing faults. The time-delay correlation demodulation is performed on the signal. First, the autocorrelation analysis is performed on the measured vibration signal of the gear or rolling bearing, and the obtained autocorrelation signal Rx(τ) is time-delayed...

AI Technical Summary

Problems solved by technology

At present, when the acceleration type and speed type measurement of bearing vibration are carried out in the industry, the acceleration type and speed type measuring instruments can only quantitatively and not qualitatively analyze the quality of the bearing.

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