华东理工大学学报（自然科学版）2017，Vol.43Issue(5)：724-732,9.DOI:10.14135/j.cnki.1006-3080.2017.05.019
考虑滚珠尺寸误差时滚珠螺旋副的受力和寿命分析
Analysis of Stress and Fatigue Life of Ball Screw with Considering Dimension Errors of Balls
摘要
Abstract
Taking ball screw with outer cycling device as the research object,by means of mechanics analysis,a calculation model,which can calculate the contact stress of every ball and the fatigue life of ball screw with considering dimension errors,is put forward.With a concrete example,the influences of the dimension error on the contact stress and fatigue life of two situations,the first one is only one ball has dimension error and the second one is that every ball has random dimension error,are studied.The maximum contact stress of balls is mapped,and the fatigue life of ball screw is calculated.Meanwhile the influences of machining accuracy on the ball screw's fatigue life have been analyzed.The fatigue life of ball screw increases as the machining accuracy increases.关键词
滚珠螺旋副/尺寸误差/力学分析/疲劳寿命Key words
ball screw/dimension errors/mechanics analysis/fatigue life分类
机械制造引用本文复制引用
甄妮,安琦..考虑滚珠尺寸误差时滚珠螺旋副的受力和寿命分析[J].华东理工大学学报（自然科学版）,2017,43(5):724-732,9.基金项目
上海市设计学Ⅳ类高峰学科项目(DA17014) （DA17014）
