Transmission characteristics of precise planetary roller screw

被引：4

作者：

Li K. ^{[1
]}

Ye P.-Q. ^{[1
]}

Zhou X.-Y. ^{[2
]}

Xu Q. ^{[3
]}

机构：

[1] Department of Machinery Engineering, Tsinghua University, Beijing

[2] College of Mechatronics and Automation, National University of Defense Technology, Changsha

[3] The 18th Research Institution of China Academy of Launch Vehicle Technology, Beijing

来源：

Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2016年 / 24卷 / 08期

关键词：

Planetary roller screw; Precise transmission mechanism; Transmission efficiency; Transmission precision;

D O I：

10.3788/OPE.20162408.1908

中图分类号：

学科分类号：

摘要：

A new precision transmission mechanism based on a planetary roller screw was designed. According to the requirements of an electro-mechanical serve system, the transmission characteristics of planetary roller screw were analyzed. The structure constitution, principle and characters of transmission mechanism were demonstrated in detail and the transmission accuracy and transmission efficiency of the precise planetary roller screw were analyzed. Then, the influence factors of different errors on the transmission precision were discussed, such as single-track and return-track errors of the planetary roller screw, errors of intermediate equipment, environment errors, and the relation between transmission efficiency and contact angle, spiral angle was also deduced. Finally, an experiment was established and the kernel characters, the transmission accuracy and transmission efficiency of the precise planetary roller screw were tested. The experimental results show that the transmission precision is superior to 1.5 μm and the transmission efficiency is superior to 74%, which verifies that the designed transmission mechanism has compact construct, powerful load ability, higher transmission efficiency and precision, and good application values in precision transmission fields. © 2016, Science Press. All right reserved.

引用

页码：1908 / 1916

页数：8

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