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Screw back-up bearing wear life calculating method

A support bearing and wear life technology, which is applied in the field of screw support bearing wear life calculation, can solve the problems of inaccurate calculation of ball screw bearing wear life, etc., and achieve the effects of short research cycle, reduced research and development cycle, and low cost

Inactive Publication Date: 2018-03-09
HENAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for calculating the wear life of ball screw bearings, which solves the problems of inaccurate calculation of the wear life of ball screw bearings at present

Method used

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  • Screw back-up bearing wear life calculating method
  • Screw back-up bearing wear life calculating method
  • Screw back-up bearing wear life calculating method

Examples

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Embodiment Construction

[0038] As shown in the figure, a method for calculating the wear life of a screw support bearing includes the following steps:

[0039] Step 1. When the bearing is in the standard coordinate system {o; x, y, z}, the rotational angular velocities of the inner ring, outer ring, cage and steel ball are respectively ω i , ω o , ω m and ω b , then project the rotation velocity of the steel ball to the coordinate axis in the coordinate system {o'; x', y', z'} to get three components ω x' , ω y' and ω z' :

[0040] ω x' = ω b cosβcosβ' (1)

[0041] ω y' = ω b cosβsinβ' (2)

[0042] ω z' = ω b sinβ (3)

[0043] The coordinate origin of the coordinate system {o'; x', y', z'} is located at the center of the steel ball, the x' axis is parallel to the x axis, and the z' axis is radially outward. The coordinate system is based on the revolution of the steel ball The speed rotates around the x-axis, β is the angle between the rotation axis of the steel ball and the x'o'y' pla...

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Abstract

The invention discloses a screw back-up bearing wear life calculating method and relates to the technical field of bearing life calculation. The method comprises the following steps: bearing quasi-statics analysis, bearing wear analysis, obtaining of bearing wear life and the like. The method disclosed by the invention has the following beneficial effects: a continuous process is discretized, anda complex dynamic problem is transformed into a simple quasi-statics problem; compared with traditional test method, the wear precision life of a ball screw bearing is studied by a numerical simulation technology; the method has the advantages of short research cycle and low cost and is very convenient for researching influence of the change of the bearing structural parameters on the wear precision life of the bearing; the method can be implemented repeatedly and can effectively shorten the research cycle of the ball screw bearing.

Description

technical field [0001] The invention relates to the technical field of bearing life calculation, in particular to a method for calculating the wear life of a screw support bearing. Background technique [0002] Due to the complexity and diversity of wear, traditional experimental research methods and classical calculus calculation methods cannot solve the actual wear problem well. Although the test method is closer to reality, it requires a lot of manpower and material resources. , and the research period is long and the cost is high. [0003] With the deepening of intelligent simulation in the field of tribology, numerical simulation technology has become one of the important methods to solve dynamic wear problems. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method for calculating the wear life of a ball screw bearing, which solves the current problems of inaccurate calculation of the wear life of the bal...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2111/10G06F2119/04
Inventor 倪艳光牛荣军谢建军华显伟王光斌
Owner HENAN UNIV OF SCI & TECH
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