摘要
RV减速器因其精度高、效率高、体积小等优势,在机器人领域占主导地位。摆线轮作为RV减速器的关键部件,直接影响着RV减速器传动系统的各项性能。为了提高摆线针轮的啮合性能,将针齿半径构造为关于转角的指数函数进行修形,建立修形后的齿廓方程。结合算例,对比修形前后的摆线轮齿廓曲线和曲率半径,计算了修形后曲柄旋转0°~360°时摆线轮与针齿的接触压力和传动误差。指数函数修形在摆线轮工作段保持了理论齿廓曲线,克服了传统修形方法修形量偏大的问题,保证了啮合的平稳性,并提高了摆线轮的强度和传动的精度。
RV reducer plays a dominant role in the field of robots because of its advantages of high accuracy,high efficiency and small size.Cycloid wheel,as the key component of RV reducer,directly affects the performance of the transmission system of RV reducer.In order to improve the meshing performance of cycloidal pin wheel,the radius of needle teeth is constructed as an exponential function of the rotation angle for modification,and the profile equation after modification is established.The tooth profile curve and curvature radius of cycloidal wheel before and after modification are compared with examples.The contact pressure and transmission error between cycloid wheel and pin teeth are calculated when the crank rotates from 0°-360°.The exponential function modification maintains the theoretical tooth profile curve in the working section of cycloidal gear,overcomes the problem of large modification amount in traditional modification method,ensures the meshing stability,and improves the strength and transmission accuracy of cycloidal wheel.
作者
陈馨雯
祝敏
王起梁
Chen Xinwen;Zhu Min;Wang Qiliang(CRRC Qishuyan Institute Co.,Ltd.,Changzhou 213011,China)
出处
《机械传动》
北大核心
2020年第4期32-37,共6页
Journal of Mechanical Transmission
关键词
RV减速器
摆线轮
修形
指数函数
RV reducer
Cycloid wheel
Modification
Exponential function
