文章基本信息

标题：Mathematical analysis of the meshing performance of planetary roller screws applying different roller thread shapes
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作者：Yanqiang Liu ; Yu Shang ; Jianshen Wang 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2017
卷号：9
期号：5
DOI：10.1177/1687814017703009
语种：English
出版社：Sage Publications Ltd.
摘要：This article investigates the meshing performance of planetary roller screws applying rollers with circular, elliptical, and parabolic threads. A mathematical model is established for the thread surface, and a method for analytically calculating the meshing points was developed. The meshing point distributions and interference risk area are calculated to analyze the meshing characteristics of the thread shapes considered. The possibility of applying elliptical thread and parabolic thread to the rollers of planetary roller screws in place of the commonly employed circular thread was explored, and elliptical threads were determined to provide better meshing positions, achieve higher transmission speeds, and obtain longer working lifetimes.
关键词：Planetary roller screw; thread meshing; elliptical thread; surface modeling