一种具有大分度数新型行星分度凸轮机构凸轮廓线设计  

Cam contour line design of a kind of new typed planetary indexing cam mechanism possessing large indexing number

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：《机械设计》2008年第9期35-37,共3页Journal of Machine Design

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的设计构想,通过重新设计少齿差行星传动销孔式输出机构的销孔形状,实现从动件的分度运动。该机构具有分度数大、体积小、质量轻、同时啮合滚子数多、承载能力大及输入输出同轴的特点。根据共轭齿廓形成原理推导了凸轮的理论廓线方程、实际廓线方程,并讨论了连续传动的条件。最后进行了机构的运动仿真。On the basis of studying the fewer teeth differenced planet transmission; a kind of designing idea of new typed planetary indexing cam mechanism was put forward. By means of redesigning the shape of pin holes of the pin holed output mechanism of fewer teeth differenced planetary transmission to realize the indexing movement of the follower components. This mechanism has the characteristics of large indexing number, smaller volume, lighter mass, and more amount of rollers meshing at the same time, big load bearing capability and the coaxial input and output. The theoretical contour line equation and the actual contour line equation of cam were derived according to the forming principle of conjugate tooth contour, and conditions of continuous transmission were discussed. Finally, the motion simulation of mechanism has been carried out.

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]