摘要
针对传统摆动活齿传动存在的尺寸链长、关键构件结构薄弱等问题,提出了一种摆轮活齿传动构型及其齿形设计方法和参数选取策略。将摆轮活齿传动机构进行等效化处理,采用拓扑分析构建等效连杆矢量传递模型,基于共轭啮合原理推导出激波器和中心轮共轭齿廓矢量方程,以避免运动干涉、齿廓顶切为约束条件,将传动压力角作为评判依据,制定摆幅系数及激波器基圆半径参数选取策略,并依据优选参数和两组对比参数分别进行齿形设计与性能分析。研究结果表明:设计的摆轮活齿齿形连续、运转无卡顿;相比于两组对比参数,采用优选参数的摆轮活齿在相同负载工况下激波器活齿啮合力峰值分别降低37.09%和28.28%,验证了设计策略的有效性。研究成果可为摆轮活齿齿形设计及参数选取提供理论参考。
Aiming at the problems such as long dimensional chain and weak structure of key components for the traditional swing movable tooth transmission,a new type of swing roller movable tooth transmission configuration and the tooth profile design method and parameter selection strategy were proposed.The swing roller movable tooth transmission mechanism was equivalent treated,and the equivalent connecting rod vector transfer model was constructed by topological analysis.According to the principle of conjugate meshing,the conjugate tooth profile vector equations of wave generator and ring gear were derived.Based on the constraint conditions of avoiding motion interference and top cutting of tooth profiles,the selection strategies of swing coefficient and base circle radius of the wave generator were developed with the transmission pressure angle as the evaluation basis.The tooth profile design and performance analysis were carried out according to the optimized parameters and the two groups of comparison parameters.The results show that the designed swing roller movable teeth transmissions have continuous tooth profiles and are able to run without stalling.Under the same load conditions,the peak value of engagement force of the wave generator and movable teeth with the optimized parameters is 37.09%and 28.28%lower than that of the comparison groups,which verifies the effectiveness of the design strategy.The research may provide theoretical reference for the tooth profile design and parameter selection of swing roller movable teeth transmission.
作者
卫锐
金贺荣
杨泽宇
陈涛
宜亚丽
WEI Rui;JIN Herong;YANG Zeyu;CHEN Tao;YI Yali(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei,066004;Hebei Provincial Key Laboratory of Parallel Robot and Mechatronic System,Yanshan University,Qinhuangdao,Hebei,066004;Key Laboratory of Advanced Forging&Stamping Technology and Science(Yanshan University),Ministry of Education of China,Qinhuangdao,Hebei,066004)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2024年第10期1722-1731,1739,共11页
China Mechanical Engineering
基金
国家自然科学基金(52375064)。
关键词
摆轮活齿
等效机构
齿廓方程
传力性能
参数约束
swing roller movable tooth
equivalent mechanism
tooth profile equation
force transmission performance
parameter constraint
