摘要
提出和研究了一种基于复合周转轮系设计的应急作业升降装置,该装置具有高空自锁性能好、应急救援便利、安全可靠的工作特点。首先计算了复合轮系的传动比和末端运转速度,然后分析计算了传动系统的效率和摩擦绞轮的牵引摩擦力,最后分析了牵引摩擦力对接触圆弧角和摩擦因数敏感性程度。分析结果表明:后行星轮系通过系杆的转速影响系统的效率,提高前中心轮和输出齿圈的转速及降低系杆的转速可有效提高装置的效率;其次,摩擦因数对牵引力的影响较为显著,逐渐提高摩擦因数和接触圆弧的取值时,牵引力对两者的敏感性也会逐渐增加。
A lifting device for emergency operation based on compound epicyclic gear train is proposed and studied.The device has good self-locking performance at high altitude,convenient emergency rescue,safe and reliable working characteristics.Firstly,the transmission ratio and running speed of the composite gear train are calculated,then the efficiency of the transmission system and the traction friction of the friction winch are analyzed and calculated,finally the sensitivity of the traction friction to the contact arc angle and friction coefficient is analyzed.The analysis results show that the rear planetary gear train affects the efficiency of the system through the speed of the tie rod,the efficiency of the device can be effectively improved by increasing the speed of the front central wheel,the output gear ring and the lower speed of the tie rod;the friction factor has a significant impact on the traction force,When the value of the friction factor and the contact arc is gradually increased,the sensitivity of the traction force to the foregoing factors will also gradually increase.
作者
吴正树
方刚
何鹏
李海波
WU Zhengshu;FANG Gang;HE Peng;LI Haibo(The Bureau of Extra-High Voltage Power Transmission Company of China Southern Grid,Nanning 510000;Shenzhen Xinnanrun Power Technology Co.,Ltd.,Shenzhen 518000;Aviation Equipment Manufacturing Department,Zhangjiajie Institute of Aeronautical Engineering,Zhangjiajie 427000)
出处
《机械设计》
CSCD
北大核心
2023年第S01期77-80,共4页
Journal of Machine Design
基金
湖南省自然科学基金项目(2021JJ60080)
关键词
应急
高空
救援
周转轮系
emergency
rescue
pulling force
planetary gear train
