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Issue:
Preload Analysis of Globoidal Indexing Cam Mechanism With Steel Balls
Author(s):
FU Zhen-shan1
,
FENG Xian-ying2
,
YU Chun-ling1
Pages:
487
-
493
Year:
2013
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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