A quasi-static model for kinematic analysis of a feed driving mechanism

A quasi-static model for kinematic analysis of a feed driving mechanism
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进给驱动机构运动学分析的准静态模型

DOI:
10.1016/j.mechmachtheory.2020.103780
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发表时间:
2020-06
影响因子:
5.2
通讯作者:
Wu Zhigang
Wu Zhigang
中科院分区:
工程技术1区
文献类型:
--
作者:
Guo Shudong;Wang Gang;Qi Zhaohui;Zhuo Yingpeng;Wu Zhigang

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提出了中国嫦娥探月计划进给驱动机构的准静态运动学分析模型。嫦娥探月计划是一种绳轮系统,用于为月球土壤的钻探和取样提供动力。该模型没有考虑作用在钢丝绳上的惯性力,因为该机构是在相对封闭的装置中操作的,而且钻进速度较低。首先,在该模型的基础上,提出了一种合适的绳轮系统空间描述方法。其次,确定了绳轮系统的运动学描述变量。推导了钢丝绳与两个滑轮、绞车和钻机接触时的一些关键空间点。分析了绞车上钢丝绳未紧密缠绕时,钢丝绳输出端发生打滑的现象。数值算例结果表明,钢丝绳张力和驱动力矩随绞车缠绕方式和驱动速度的不同而变化。
A quasi-static model is proposed for kinematic analysis of the feed driving mechanism designed for China's Chang'e Lunar Exploration Program, which is a type of rope-pulley system used to provide driving force for drilling and sampling of lunar soil. This model does not take into account the inertia force acting on the rope because the mechanism is operated in a relatively enclosed device and the drilling speed is low. First, an appropriate method for spatial description of the rope-pulley system is applied on the basis of the model. Next, variables for kinematic description of the rope-pulley system are determined. Some key spatial points on the rope in contact with two pulleys, the winch, and the drilling rig are formulated. Then, the slip phenomenon occurs at the output terminal of the rope on the winch when the rope is not wrapped closely is analyzed. The results from numerical examples show that the rope tension and the driving moment vary depending on the way the rope is wrapped around the winch and the driving velocity.
DOI: 10.1007/s11044-010-9242-7
发表时间: 2011-01
影响因子: 3.4
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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
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DOI: --
发表时间: 1989-03
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作者:
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