一种新型二级凸轮式分度机构动力学仿真  

Dynamic simulation of novel two-stage indexing cam mechanism

作　　者：刘明涛[1] 袁胜男 陈港[1] 郭天明 LIU Mingtao;YUAN Shengnan;CHEN Gang;GUO Tianming(School of Mechanical Engineering,Tianjin University of Science and Technology,Tianjin 300222)

机构地区：[1]天津科技大学机械工程学院,天津300222

出　　处：《机械设计》2024年第2期96-101,共6页Journal of Machine Design

摘　　要：针对一种新型二级凸轮式分度机构的拓扑结构特点,在ADAMS软件环境下建立了机构动力学模型,分析机构的输出响应。在此基础上,研究了转速、惯性负载及针齿分度圆半径等因素对整机动态性能的影响规律。此外,分析了传动构件的针齿强度。结果表明:机构输出轴角速度值随着转速的提高而大幅度增加,随着针齿分度圆半径的增大而减小,其波动幅值随负载的增大而明显减小。机构分度期内针齿与凸轮间的动态啮合力显著波动,上述研究成果可为该类分度机构的工况参数选择原则提供一定的参考。According to the topological structure of a novel two-stage indexing cam mechanism,the dynamics model is set up in the ADAMS environment,and the analysis is conducted on the output response.On this basis,efforts are made to explore the influence of such factors as the rotational speed,the inertia load,and the pin-gear distribution radius on the mechanism’s dynamic performance.In addition,the analysis is carried out on the strength of the transmission component’s pin gear.The results show that the amplitude of the output shaft’s angular velocity increases significantly with the ever-growing rotational speed and decreases with the ever-growing radius of the pin-gear distribution circle;its fluctuation amplitude decreases significantly with the ever-growing of the load.The dynamic meshing force between the pin gear and the cam during the indexing period of the mechanism fluctuates significantly.These results provide reference for parameter selection of such indexing mechanisms under different operating conditions.

关 键 词：行星式凸轮分度机构 拓扑结构 虚拟样机 动力学分析 

分 类 号：TH132.4[机械工程—机械制造及自动化]