THEORETICAL RESEARCH ON THE CONTACT PROBLEM OF THE ROLLER BEARING IN ROCK-BITS

作     者：Wang Fangfei (Research Institute of Petroleum Exploration & Development Beijing China 100083) Luo Wei (University of Petroleum Beijing China 102200) 

会议名称：《第二届中日国际机械零件会议》

会议日期：1996年

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

关 键 词：Rock bit Roller bearing Contact problem 

摘      要：正The theoretical research on the contact problem for roller bearing in rock-bits is presented by using the numerical method of three dimension non-Hertzian elastic contact *** calculated results reveal that the early fatigue of bearing is due to the singularity of contact pressure towards the ends of roller with straight line profile.