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Title:
Experiment study on friction drive
Author: Wang, GuoMin(王国民) ; Ma, LiSheng(马礼胜) ; Yao, ZhengQiu(姚正秋) ; Li, GuoPing(李国平)
Issued Date: 2004-09-29
Conference Date: 2004-6-21
Conference Place: Glasgow, Scotland
Keyword: large telescope ; friction drive ; ultra-low speed ; slippage ; creepage ; critical speed
Subject: 天文技术与方法::精密机械及传动 ; 天文技术与方法::自动控制
English Abstract:
In the past years, friction drive was developed to overcome the inherent deficiencies in both worm drive and gear drive.No periodical error and free of backlash are the main advantages of friction drive. With the trend towards bigger and bigger aperture of the optical telescopes, there are some reports about friction drive employed to drive the telescopes.However friction drive has its own deficiencies, such as slippage and creepage. This report here describes the study on the friction drive finished in an experiment arranged by LAMOST project. It comprises three main parts. First, it introduces the experiment apparatus and proposes a new kind of measurement and adjustment mechanisms. Secondly,the report gives the analysis of friction drive characteristics theoretically, such as slippage, creepage and gives the results of corresponding experiments. The experiment shows that the lowest stable speed reaches 0.05″/s with precision of 0.009″(RMS), the preload has little influence on the drive precision in the case of constant velocity and the variable velocity when the angle acceleration is less than 5″/s2 with close loop control and the creepage velocity of this experiment system is 1.47″/s. Lastly, the analysis in the second section lists some measures to improve the precision and stability further. These measures have been actually conducted in the testing system and proved to be reliable.
Sponsorship: The International Society for Optical Engineering
Source: Astronomical Structures and Mechanisms Technology
Publisher: SPIE
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/385
Appears in Collections:中科院南京天光所知识成果_会议论文
望远镜工程中心_会议论文

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Recommended Citation:
Guomin Wang,Lisheng Ma,Zhengqiu Yao,et al. Experiment study on friction drive[C]. 见:. Glasgow, Scotland. 2004-6-21.
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文件名: Experiment study on friction drive.pdf
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