工程设计学报2023，Vol.30Issue(6)：738-745,8.DOI:10.3785/j.issn.1006-754X.2023.03.164
滚动轴承径向游隙可靠性设计
Reliability design of radial clearance of rolling bearing
摘要
Abstract
Clearance is one of the key factors in evaluating the accuracy and quality of rolling bearings.Scientific and reasonable selection of clearance is conducive to increasing bearing life,while traditional methods for determining clearance based on engineering experience often lack theoretical basis and reliability.Therefore,a reliability design method for radial clearance of rolling bearing based on stress-strength interference model was proposed.Firstly,the original radial clearance and failed radial clearance of the bearing were regarded as random variables,and a two-dimensional random interference model of the bearing was constructed;secondly,according to the original radial clearance and failed radial clearance of bearing with normal,lognormal,exponential and Weibull distributions commonly used in engineering,the analytical formula for solving the reliability of rolling bearing and the confidence interval of bearing radial clearance under given reliability were derived;finally,the obtained confidence interval of 16004 deep groove ball bearing radial clearance was compared with that of the current national standard,and the effectiveness and applicability of the proposed method were verified.The results showed that the confidence interval of radial clearance of rolling bearing designed by the proposed method met the national standard and was more reasonable and reliable.The confidence interval of radial clearance under any reliability could be designed,which provided theoretical support for the design and optimization of rolling bearings.关键词
滚动轴承/径向游隙设计/应力-强度干涉模型/正态分布/Weibull分布Key words
rolling bearing/radial clearance design/stress-intensity interference model/normal distribution/Weibull distribution分类
通用工业技术引用本文复制引用
李军星,宁世杰,邱明..滚动轴承径向游隙可靠性设计[J].工程设计学报,2023,30(6):738-745,8.基金项目
国家自然科学基金资助项目(52005159) （52005159）
河南省高校青年骨干教师培养计划资助项目(2021GGJS048) （2021GGJS048）
河南省青年人才托举工程项目(2023HYTP050) （2023HYTP050）
河南省科技研发计划联合基金资助项目(225200810073,232103810043) （225200810073,232103810043）
