多齿啮合行星机构的传动精度分析  

Transmission Precision Analysis of Planetary Mechanism with Multi-Tooth Meshing

作　　者：林超[1] 蔡志钦 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《华南理工大学学报（自然科学版）》2014年第1期35-40,46,共7页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51275537)

摘　　要：针对多齿啮合行星机构这种新型的传动机构,研究了其传动原理;在此基础上,考虑偏心误差、行星齿轮相位角、弹性变形与负载对机构传动精度的影响,建立了机构随转角变化的传动精度模型,推导出其传动精度方程;然后,利用虚拟样机技术,在ADAMS环境中进行仿真分析及验证,并进行相应的简化实验,得到该机构的输出转角误差和回差.研究表明:仿真结果与计算结果基本一致;与传统行星机构相比,多齿啮合机构的传动精度明显提升.In this paper, first, the transmission principle of a new-type transmission mechanism, namely a planetary mechanism with multi-tooth meshing, was investigated. Next, based on the transmission principle, the influences of eccentric error, gear phase angle, elastic deformation and load on the transmission accuracy of the mechanism were analyzed, and a model was established to describe the transmission accuracy varying with the angle, with the eon＇e- sponding transmission accuracy equations being also deduced. Then, the virtual prototype technology was adopted to perform a simulation and verification in ADAMS, and a simplified experiment was finally conducted to obtain the output angle en＇or and the rotation error of the mechanism. It is found that the simulated results accord well with the mathematical ones, and that the transmission accuracy of multi-tooth meshing mechanism is much higher than that of the traditional planetary mechanism.

关 键 词：机械传动 行星机构 多齿啮合 传动精度 偏心误差 虚拟样机 

分 类 号：TH132[机械工程—机械制造及自动化]