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Rotor bearing system failure perfect information analytical method and apparatus

A technology of system failure and analysis method, applied in the direction of mechanical bearing testing, etc., can solve problems such as affecting the accuracy of fault diagnosis, and achieve the effect of improving practicability and improving intuitive identification.

Inactive Publication Date: 2009-03-18
YANCON CATHAY COAL CHEM +2
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The separation of radial information and axial information to describe the motion state of the rotor-bearing system is one-sided and will inevitably affect the accuracy of fault diagnosis

Method used

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  • Rotor bearing system failure perfect information analytical method and apparatus
  • Rotor bearing system failure perfect information analytical method and apparatus

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0038] see figure 1 , figure 1 Shown is a schematic diagram of the installation position of the eddy current sensor. Two eddy current sensors are installed perpendicular to each other in the radial direction of a certain section of the rotor, and one eddy current sensor is installed in the axial direction of the rotor shaft end.

[0039] see figure 2 , the processing flow of the present invention is: utilize the data collector to gather the signal information X of each sensor DC (t), X AC (t), Y DC (t), Y AC (t), Z DC (t), Z AC (t), where X DC (t), X AC (t) respectively represent the DC component information and AC component information of the rotor in the X direction, Y DC (t), Y AC (t) respectively represent the DC component information and AC component information of the rotor in the Y direction, Z DC (t), Z AC (t) r...

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Abstract

The invention discloses a rotor bearing system accident comprehensive information analysis method and a device thereof, wherein one section of a rotor is radial and vertically mounted with two sensors X, Y, the axle end of the rotor is axially mounted with a sensor Z, the radial and axial information of the rotor motion transmitted by the sensors are fused to analyze the motion state of the rotor bearing system, the axis center line position and the axis center track of the rotor in the X-Y, Y-Z and Z-X planes of a dimension space are described and displayed visibly to completely and accurately describe the spatial motion information of the rotor, and the information contains the unique diagnosis information as dimension space eccentricity, an attitude angle, a precession direction and vibration vector direction and the like, thereby improving the ability for visually recognizing the accidents of a rotary machine.

Description

technical field [0001] The invention relates to the technical field of detection and analysis of rotating machinery, in particular to a method for analyzing full information of faults in a rotor bearing system. Background technique [0002] Comprehensive and accurate monitoring of the spatial motion state of the rotor bearing system is a prerequisite for correct fault diagnosis. [0003] The motion of the rotor is a spatial motion. In order to obtain the motion information of the rotor comprehensively and accurately, for the monitoring of the rotor bearing system of rotating machinery, two eddy current sensors are installed perpendicular to each other in the radial direction of a selected section of the rotor, and an eddy current sensor is installed in the axial direction of the rotor. Sensors monitor the radial and axial movements of the rotor, respectively. [0004] At present, in the general equipment condition monitoring and fault diagnosis system, the radial informati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
Inventor 刘强闫鲁忠朱永华刘永旭朱健邢佑兵孙广军胡云李怀刚孙俊杰刘原彬董辛旻陈宏雷文平穆耀祖
Owner YANCON CATHAY COAL CHEM
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