Experiment study on friction drive | |
Guomin Wang ; Lisheng Ma ; Zhengqiu Yao ; Guoping Li | |
2004-09-29 | |
会议日期 | 2004-6-21 |
会议地点 | Glasgow, Scotland |
关键词 | large telescope friction drive ultra-low speed slippage creepage critical speed |
卷号 | 5495 |
期号 | 5495 |
页码 | Vol.5495 419-428 |
英文摘要 |
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. |
会议主办者 | The International Society for Optical Engineering |
会议录 | Astronomical Structures and Mechanisms Technology |
会议录出版者 | SPIE |
学科主题 | 精密机械及传动 ; 自动控制 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/385] |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_望远镜工程中心_会议论文 |
推荐引用方式 GB/T 7714 | Guomin Wang,Lisheng Ma,Zhengqiu Yao,et al. Experiment study on friction drive[C]. 见:. Glasgow, Scotland. 2004-6-21. |
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