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Intelligent and quick fault diagnosis instrument for bearing and diagnosis method thereof

A fault diagnosis instrument and bearing technology, applied in chemical industry, machinery manufacturing, metallurgy, printing, cement, electric power fields, can solve the problem of low intelligence, high intelligence, special skills and experience dependence of bearing fault diagnosis instrument, etc. problem, to achieve the effect of fast bearing fault diagnosis, high degree of intelligence, special skills and experience dependence

Inactive Publication Date: 2017-09-15
北京时代龙城科技有限责任公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the existing bearing fault diagnosis instrument has a low degree of intelligence, and the determination of the working state of the bearing, the development trend of the fault, and the cause of the fault need to rely on the special technical level and work experience of the operator, the present invention provides a quick and easy method based on vibration detection Bearing intelligent fast fault diagnosis instrument for evaluating bearing status. The diagnostic instrument can obtain bearing speed and directly evaluate bearing operating status based on monitoring data. At the same time, it can also give a clear fault description, including the development stage of bearing fault and bearing damage. The degree of damage to parts and bearings, high degree of intelligence, and little dependence on the special skills and experience of operators

Method used

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  • Intelligent and quick fault diagnosis instrument for bearing and diagnosis method thereof
  • Intelligent and quick fault diagnosis instrument for bearing and diagnosis method thereof
  • Intelligent and quick fault diagnosis instrument for bearing and diagnosis method thereof

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Embodiment Construction

[0025] The present invention will be described below in conjunction with the accompanying drawings.

[0026] The invention relates to an intelligent quick fault diagnosis instrument for bearings, such as figure 1 The structure shown includes a data acquisition device and a data processing device connected to each other, the data acquisition device includes a vibration sensor, and the data acquisition device collects and processes the vibration analog signal of the bearing based on the vibration sensor; the data processing device respectively processes the vibration analog signal through several preset frequencies Collect and obtain corresponding sets of vibration time-domain signals, and then perform Fourier transform on each vibration time-domain signal to obtain the amplitude of each frequency point of several groups of vibration spectrum, and estimate the bearing speed according to the amplitude distribution of each frequency point , and then divide the vibration accelerati...

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Abstract

The invention relates to an intelligent and quick fault diagnosis instrument for a bearing and a diagnosis method thereof. The fault diagnosis instrument comprises a data acquisition device and a data processing device which are connected with each other. The data acquisition device comprises a vibration sensor. The data acquisition device acquires a vibration analog signal of a processed bearing based on the vibration sensor. The data processing device acquires the vibration analog signal through a plurality of preset frequencies and obtains a plurality of sets of vibration time domain signals, and then the data processing device performs a series of processing analysis on each vibration time domain signal for finally determining a fault part. The intelligent and quick fault diagnosis instrument and the diagnosis method thereof can generate a clear fault description which comprises a bearing fault development period, a bearing damage part and bearing damage degree. The intelligent and quick fault diagnosis instrument and the diagnosis method further have advantages of high intelligence degree, and low dependence for a professional skill and experience of an operator.

Description

technical field [0001] The invention relates to vibration analysis and fault diagnosis technology of mechanical equipment, in particular to an intelligent quick fault diagnosis instrument and a diagnosis method for bearings, which are applicable to the fields of machinery manufacturing, metallurgy, chemical industry, electric power, cement, printing and the like. Background technique [0002] Bearings are important basic components of various mechanical equipment. The accuracy, performance, life and reliability of bearings play a decisive role in the accuracy, performance, life and reliability of the main engine. Studies have shown that 30% of mechanical equipment failures are caused by bearing failures, so bearing condition monitoring and fault diagnosis are very important. Predictive maintenance of bearings can effectively reduce machine downtime and reduce maintenance costs. During equipment operation, use basic state monitoring methods (such as temperature, vibration and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
CPCG01M13/045
Inventor 王执军王磊梁丽芳
Owner 北京时代龙城科技有限责任公司
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