机械科学与技术2017，Vol.36Issue(1)：83-88,6.DOI:10.13433/j.cnki.1003-8728.2017.0112
平面机构运动输出精度可靠性及寿命
Reliability of Kinematic Accuracy and Rate Life for Planar Mechanism
摘要
Abstract
Planar mechanisms are widely applied to many machines,but the impact of their long transmission distance on the kinematic accuracy can not be ignored.The influence factors of reliability in precision of mechanism kinematic were divided into non-cumulative factors and cumulative factors.The analysis methods of reliability in precision of planar mechanism motion were given under the conditions of coupling effects by cumulative factors and non-cumulative factors.The model of wear reliability interference was established based on the Archard wear model.The calculating method for rated life was proposed under the condition of rotational speeds.The crank slider mechanism was analyzed as an example,which is widely used in engineering.The results showed that the cumulative factors is the main factor which affects the kinematic accuracy of mechanisms,the mechanical reliability falls sharply when cumulative factors accumulate to a certain extent and the rated life of various institutions is calculated under the rated speed.关键词
运动精度/耦合/磨损/可靠性/寿命Key words
kinematic accuracy/coupling/wear, reliability/life分类
机械制造引用本文复制引用
刘柏希,屈涛,张弦..平面机构运动输出精度可靠性及寿命[J].机械科学与技术,2017,36(1):83-88,6.基金项目
湖南省自然科学湘潭联合基金项目(14JJ5028)与湖南省教育厅科学研究优秀青年项目(13B115)资助 （14JJ5028）
