反向式行星滚柱丝杠副的螺纹牙修形设计  

Thread Tooth Modification of the Inverted Planetary Roller Screw Mechanism

作　　者：乔冠 郝志鹏 廖荣 张楠[1] 刘更[2] Qiao Guan;Hao Zhipeng;Liao Rong;Zhang Nan;Liu Geng(Inner Mongolia Key Laboratory of Advanced Manufacturing Technology,Inner Mongolia University of Technology,Hohhot 010051,China;Shaanxi Engineering Laboratory for Transmissions and Controls,Northwestern Polytechnical University,Xi′an 710072,China)

机构地区：[1]内蒙古工业大学内蒙古自治区先进制造技术重点实验室,内蒙古呼和浩特010051 [2]西北工业大学陕西省机电传动与控制工程实验室,陕西西安710072

出　　处：《机械传动》2024年第4期109-115,共7页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(52265009);内蒙古自然科学基金项目(2020BS05003);自治区直属高校基本科研业务费项目(JY20220284,JY20220374);内蒙古工业大学科学研究项目(ZZ201903,BS2020014)。

摘　　要：基于反向式行星滚柱丝杠副(Inverted Planetary Roller Screw Mechanism,IPRSM)的螺纹牙载荷分布情况,分析了滚柱修形和丝杠修形对其载荷分布的影响。结果表明,丝杠-滚柱接触侧的载荷不均程度比长螺母-滚柱接触侧严重,对滚柱修形后,最大接触应力以及最大载荷得到了有效降低,螺纹牙上的载荷分布更加均匀;而长螺母-滚柱接触侧对修形量变化较丝杠-滚柱接触侧更加敏感。同样,丝杠修形可有效降低最大载荷。研究对优化IPRSM的载荷分布具有一定的参考意义。Based on the thread tooth load distribution of the inverted planetary roller screw mechanism(IPRSM),the influence of roller modification and screw modification on the load distribution is analyzed.The results show that the uneven load on the screw-roller interface is more serious than that on the long nut-roller in-terface,and the maximum contact stress and the maximum load on the threaded teeth are effectively reduced by the roller modification.Besides,the long nut-roller interface is more sensitive to the modification amount than that of the screw-roller interface.Similarly,the maximum load can also be effectively reduced by the screw mod-ification.This study has some reference significance for optimizing the load distribution of the IPRSM.

关 键 词：反向式行星滚柱丝杠副 螺纹牙修形 载荷分布 有限元分析 

分 类 号：TH122[机械工程—机械设计及理论]