国防科技大学学报2018，Vol.40Issue(2)：136-142,7.DOI:10.11887/j.cn.201802022
便携式绳轨提升装置的轮盘-绳索摩擦提升力模型
Lifting capacity model based on wheel-rope friction for portable rope-track hoist
摘要
Abstract
In order to improve the usability of PRTH(portable rope-track hoist), the friction-based PRTH lifting capacity was studied.The influence of tension at the end of the rope, wrap angle and relative size on the friction between the wheel and the rope was experimentally studied by using the control variant method.The results show that: the friction increases with the increase of the three factors, but the trend is slowed down; the coefficient of static friction decreases with the increase of the end tension and the wrap angle and tends to be stable,and it increases with the relative size of the wheel to the rope and converges to a constant.The effects of wrap angle and end tension on the friction were demonstrated to be identical to each other, the size effect of wheel-rope friction was found, and a new lifting capacity model on wheel-rope friction was established with the three factors.The model is the sublation of Euler formula, deepens the understanding of the friction law between the wheel and the rope, and is of great significance to the miniaturization and lightweight design of PRTH.关键词
摩擦轮/摩擦传动/便携式绳轨提升装置/尺寸效应Key words
friction wheel/friction drive/portable rope-track hoist/size effect分类
机械制造引用本文复制引用
殷昊,叶佩青..便携式绳轨提升装置的轮盘-绳索摩擦提升力模型[J].国防科技大学学报,2018,40(2):136-142,7.基金项目
广东省产学研资助项目(2011B090400382) （2011B090400382）
清华大学摩擦学国家重点实验室探索基金资助项目(SKLT09B08) （SKLT09B08）
