按许用压力角确定推杆凸轮机构基本尺寸的完全解析法  

Analytical Solution for Determining Basic Size of Mechanism with Follower Cam Based on Allowed Pressure Angle

作　　者：罗永前[1] 程葆伦[1] 

机构地区：[1]重庆职业技术学院,重庆400712

出　　处：《重庆职业技术学院学报》2006年第6期132-135,共4页Journal of Chongqing Vocational& Technical Institute

摘　　要：基于解析几何法导出的最大压力角表达式,导出了偏心凸轮机构和对心凸轮机构的基圆半径和偏距的计算公式。只要从动件为常用的运动规律以及不超过3次的多项式运动规律,在满足许用压力角的前提下,采用该解析法确定凸轮基圆半径和偏距,比其它解析法简捷方便。Based on analytical geometry, the expression of maximal pressure angle is deduced, and then here deduced are the calculating formulas, which illuminate basic circle radius and eccentricity of cam mechanism. The result shows that when follower pertains to ordinary and 3 order polynomial motion rule, with the allowed pressure angle being given, the basic circle radius and eccentricity of cam mechanism can be defined, so the presented method is easier in comparison with others.

关 键 词：基圆半径 偏距 最大压力角 最大初始压力角 许用压力角 

分 类 号：TH137.3[机械工程—机械制造及自动化]