新型行星分度凸轮机构瞬心线的研究  

Study on Instantaneous Center Curve of Planetary Indexing Cam Mechanism

作　　者：洪振宇[1] 许致华[1] 

机构地区：[1]中国民航大学交通工程学院,天津300300

出　　处：《机床与液压》2008年第9期57-59,共3页Machine Tool & Hydraulics

基　　金：天津市自然科学基金资助项目(05YFJMJC06300);校科研基金资助项目(07qd07s)

摘　　要：在对少齿差行星传动研究的基础上,提出了一种新型行星分度凸轮机构。推导了行星分度凸轮和输出构件的瞬心线方程以及凸轮理论廓线的法线方程,得到如下结论:凸轮与输出构件的瞬心线是封闭的、连续的;凸轮与柱销啮合的瞬时,各柱销与凸轮啮合点处,凸轮理论廓线的法线汇交于该瞬时凸轮与柱销的速度瞬心,符合齿廓啮合基本原理。The synthesis of a new type of intermittent mechanism-planetary indexing cam mechanism was presented. The instantaneous center curve equations of the cam and the normal lines equations of the cam pitch curve were derived. It can be concluded that： the instantaneous center curve of the cam are continuous and closed at infinity. The normal lines of the cam pitch curve at the meshing points intersect at the instantaneous center, which accords with the meshing principle of tooth contour.

关 键 词：间歇机构 分度凸轮机构 行星传动 

分 类 号：TH112[机械工程—机械设计及理论]