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Preload Analysis of Globoidal Indexing Cam Mechanism With Steel Balls
Author(s): 
Pages: 487-493
Year: Issue:  4
Journal: Journal of Beijing University of Technology

Keyword:  弧面分度凸轮 预紧 弹性变形 压力角 预紧力 接触变形;
Abstract: 滚珠型弧面分度凸轮机构在预紧状况下工作,预紧改变了机构的传动性能,预紧量决定了预紧力.针对单圆弧和双圆弧2种滚道截形的弧面分度凸轮,分析了调整中心距和增大滚珠直径2种预紧方法对凸轮机构压力角的影响;从分析机构弹性变形出发,讨论分析了预紧过程中每个构件的变形以及预紧调整量与预紧力、变形量的关系;结果表明:在预紧量一定的情况下,在整个分度期内产生的预紧力是变化的,预紧量和预紧力为非线性关系.分析对机构的安装、凸轮的设计和制造具有指导意义.
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