基于逆螺旋机构的电梯缓冲器设计及动力学特性分析  

Design of Elevator Buffer Based on Inverse Screw Mechanism and Dynamic Characteristics Analysis

作　　者：李涛[1] 赵寿根[1] 何玉金 李东海 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京

出　　处：《机械工程与技术》2019年第4期286-302,共17页Mechanical Engineering and Technology

摘　　要：缓冲器是目前电梯运行发生紧急情况时确保乘客安全的关键装置。本文采用凸轮–弹簧式恒力矩和逆螺旋传动机构设计了一种具有恒定缓冲力的新型缓冲器,基于冲击动力学理论研究了该缓冲器的工作原理,并进行了动力学特性分析和运动仿真,得到了缓冲器的性能曲线及性能优化参数。研究结果表明该缓冲器具有优良的缓冲性能和良好的性能可设计性,且有不占用底坑空间的优点。The buffer is the key device for ensuring passenger safety when an emergency occurs.In this paper,a new type of elevator buffer with constant-force is designed by using cam-spring constant torque and inverse screw drive mechanism.The working principle of the buffer is studied based on the impact dynamics theory,and the dynamic characteristics analysis and dynamic simulation,the performance curve of the buffer and the performance optimization parameters are obtained.The results show that the buffer has excellent cushioning performance,with the advantage of not taking up the pit space.

关 键 词：缓冲器 恒力矩机构 逆螺旋传动机构 

分 类 号：TH13[机械工程—机械制造及自动化]