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Method, device and system for measuring mass center movement track of bearing retainer

A technology of bearing cage and motion trajectory, which can be used in measurement devices, optical devices, static/dynamic balance testing, etc., and can solve problems such as low accuracy

Pending Publication Date: 2021-07-02
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a method, device, and system for measuring the motion track of the center of mass of the bearing cage to solve the problem of low accuracy of the existing methods

Method used

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  • Method, device and system for measuring mass center movement track of bearing retainer
  • Method, device and system for measuring mass center movement track of bearing retainer
  • Method, device and system for measuring mass center movement track of bearing retainer

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Embodiment Construction

[0036] Embodiment of the motion track measurement system for the center of mass of the bearing cage:

[0037] The main idea of ​​the present invention is to set three marking points on the bearing cage, and during the rotation of the bearing, the acquisition device records the image information of the three marking points and the main shaft at each moment, and then obtains the image information of each mark through the processing device. According to the position information of the point relative to the axis of the spindle, the position of the center of mass is obtained according to the principle that the distance between each marked point and the center of mass is equal, and then the movement track of the center of mass is obtained, which provides an accurate basis for analyzing the dynamic characteristics of the bearing.

[0038] The motion track measurement system of the center of mass of the bearing cage includes an acquisition device and a processing device. The acquisitio...

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Abstract

The invention relates to a method, a device and a system for measuring the mass center movement track of a bearing retainer, and belongs to the technical field of bearing measurement. The measuring method comprises the following steps: arranging at least three mark points on the bearing retainer; acquiring image information including the main shaft and each mark point in the rotating process of the bearing; determining the position information of each mark point relative to the axis of the main shaft at the same moment from the image information; and calculating the position information of the mass center relative to the axis of the main shaft according to the position information of each mark point relative to the axis of the main shaft at the same moment and the principle that the distance between each mark point and the mass center is equal, thereby obtaining the motion track of the mass center. In the whole measurement process, the structure of the bearing is not changed, only several mark points are arranged on the retainer, and the positions of the mark points are determined through image information, so that the accuracy of mass center movement track measurement is greatly improved.

Description

technical field [0001] The invention relates to a method, device and system for measuring the motion track of the center of mass of a bearing cage, belonging to the technical field of bearing measurement. Background technique [0002] Rolling bearings are widely used in rotating mechanical equipment, and their reliability is related to the performance of the entire mechanical equipment. The cage is an indispensable part of the bearing, and its running stability affects the performance and life of the bearing. During the operation of the bearing, the cage is subjected to friction and collision between the rolling elements and the raceway, which will destroy the running stability of the cage, cause the center of mass track of the cage to be disordered, and then affect the overall dynamic stability of the bearing. Therefore, accurate detection of the motion trajectory of the center of mass of the cage is beneficial to the analysis of the dynamic characteristics of the bearing....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/12G01B11/00
CPCG01M1/122G01B11/002
Inventor 邱明张家铭庞晓旭杨旭董艳方杨传猛李军星陈立海李迎春杜辉
Owner HENAN UNIV OF SCI & TECH