Transmission backlash of precise cable drive system

Transmission backlash of precise cable drive system
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精密拉索传动系统的传动间隙

DOI:
10.1177/0954406212473887
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发表时间:
2013-01
期刊:
Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science
影响因子:
--
通讯作者:
Fan, Dapeng
Fan, Dapeng
中科院分区:
其他
文献类型:
--
作者:
Lu, Yafei;Fan, Dapeng

文献摘要

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精密索传动是光电跟踪系统中替代齿轮、皮带轮、链条和链轮的传动元件。为使设计人员在设计研究阶段能更好地评估精密索传动的精度性能,提出了一种精确索传动侧隙的分析方法。研究了精密索传动的滑移角,考虑了索的转动速度和转动惯量对接触区力平衡的影响。分别计算了索在滑移区和自由区的变形,建立了精密索传动系统传动侧隙的理论计算公式。通过参数灵敏度分析,研究了传动间隙与精密索传动参数(包括预紧张力、负载张力、摩擦系数、中心距和输出滚筒半径)之间的关系。搭建了实验装置,对传动侧隙进行了测试。试验了预紧力对传动侧隙的影响。结果表明,传动侧隙的实验值与理论曲线吻合较好,验证了本文提出的理论方法。
Precise cable drive has been developed as an alternative transmission element to gears, belts and pulleys, chains and sprockets in electro-optical tracking system. The analytical method is developed to predict the transmission backlash of precise cable drive to enable designers to better assess the precision performance in the design study phase. Slip angle of precise cable drive is studied, and the effect of the rotational velocity and inertia of cable on the force equilibrium of contact region is considered. The deformation of cable in slip region and free region is calculated respectively and theoretical formulation of transmission backlash for precise cable drive system is carried out. Parametric sensitivity is investigated to evaluate the relationship between the transmission backlash and precise cable drive parameters including preload tension, load tension, friction coefficient, center distance and output drum radius. Experimental setup is built and the transmission backlash is tested. Effect of preload tension on the transmission backlash is tested. Results show that the experimental value and the theoretical curve of the transmission backlash fit well, which validates the theoretical method developed in this article.
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