浮动推杆形锁合凸轮机构广义第Ⅱ类综合问题-《集美大学学报（自然科学版）》

文章信息/Info

Title:: The Broad-sense Type II Synthesis Task of Positive-drive Cam Mechanisms with Floating Pushrod

Author(s):: FAN Wu1; CHANG Yong1; 2; (1.School of Mechanical and Energy Engineering,Jimei University,Xiamen 361021,China;2.Engineering Training Center,Jimei University,Xiamen 361021,China)

Keywords:: positive-drive cam mechanisms; forward travel/ return travel; instantaneous/ whole choice region; simple searching domain

摘要:: 以共轭凸轮、槽道凸轮机构为研究对象，引据“浮动坐标系”、“瞬时、整程区域套”和“往程、返程”等重要概念，对主、副凸轮机构展开分割、归并性研究。利用“整程区域套”生成原理、“精练搜索范畴”等概念，取用等距离散化策略，给出滚子中心允许选择区域、凸轮基圆半径许用取值范围的求解方法，解决了浮动滚子推杆形锁合凸轮机构的广义第Ⅱ类尺寸综合问题，并用算例进行了验证。

Abstract:: Conjugatecam and groove-cam mechanisms with floating roller pushrod are used as research object in this paper. Based on the concepts “floating coordinate system”,“instantaneous and whole nested region” and “forward and return travel”,the main and auxiliary cam were studied respectively and comprehensively.The generating principle of “whole nested region”,a key concept of a “simple searching domain” and an equidistant dispersion strategy were put forward.The method for solving the allowable area for roller center and value range of the cam＇s base circle radius was obtained.The broadsense type II size synthesis task of positive-drive cam mechanisms with floating roller pushrod was solved accurately.Moreover,a mathematical example of mechanism synthesis was provided by using the proposed approach in the paper.