摘要
针对三叉式万向联轴器传动时输出轴的运动规律问题,建立三叉式万向联轴器系统的坐标系,应用坐标变换技术建立了三叉式万向联轴器输入轴和输出轴的运动方程,推导出了三叉式万向联轴器采用双径向轴承安装时输出轴交点的运动轨迹方程及至输入轴轴线的距离方程。对运动方程进行了数值求解,考察了输出轴的偏心量随偏转角的变化关系,及在输入轴一个运动周期内输出轴的运动规律。通过建立三叉式万向联轴器虚拟样机对其进行了仿真实例分析,验证了理论分析的正确性。研究结果表明:输出轴绕坐标轴Zo做行星运动,其公转是自转转速的三倍;随着偏转角的增大,偏心量逐渐增大,输出轴中点的运动轨迹波动越强。
Aiming at the output shaft movement problem of the tripod universal coupling,the coordinate system of the tripod unversal joint was establised and the motion equations of the input shaft and output shaft of the tripod universal joint were established by the coordinate transformation technique,and deduced that the trajectory equations and the distance equations of the output shaft when the double radial bearings were installed.The relationship between the output shaft were investigated by the numerical solution.Then the correctness of the theoretical analysis was vertified.The results indicate that the output shaft around the axis Zodo planetary motion,which the revolution is three times the input shaft speed in a movement cycle.With the greater the deflection angle,the more output shaft eccentricity,the greater the fluctuation of the trajectory snd the farther away from the input shaft.
作者
李松梅
李帅帅
王勇
常德功
LI Song-mei;LI Shuai-shuai;WANG Yong;CHANG De-gong(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China)
出处
《机电工程》
CAS
2017年第12期1407-1411,共5页
Journal of Mechanical & Electrical Engineering
基金
山东省自然科学基金资助项目(ZR2015EM037
ZR2016EEP12)
青岛市民生计划项目(16-6-2-59-nsh)
关键词
三叉式万向联轴器
双径向轴承
运动规律
数值模拟
tripod universal joint
twin radial bearings
motion analysis
numerical simulation
