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工程设计学报
Chinese Journal of Engineering Design  2014, Vol. 21 Issue (4): 398-404    DOI: 10.3785/j.issn. 1006-754X.2014.04.016
    
Research on motion fidelity of floating concave arc pushrod-disc cam combination mechanisms
CHANG Yong1，2, QU Cheng-long1
1. College of Mechanical and Energy Engineering， Jimei University， Xiamen 361021， China;
2. Engineering Training Center， Jimei University， Xiamen 361021， China
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Abstract  The class Ⅰ synthesis problem of floating concave arc bottomed pushrod-disc cam combination mechanisms is not only an important content of its synthesis theories, but also the basis of its engineering application. However, the class Ⅰ synthesis problem is very complicated, it is difficult to be resolved at once. "Movement fidelity condition" is an important prerequisite condition of class Ⅰ synthesis problem. The "supporting function method" is applied to floating concave arc pushrod-disc cam combination mechanisms. The computational formula of curvature radius and "movement fidelity conditions" of the cam mechanisms were studied and solved， which met the premise of the class Ⅰsynthesis problem—preset the conditions of cam axis O1（xO1， yO1）. The results lay an important theoretical foundation for solving the class Ⅰ synthesis problem， while the "supporting function method" is extended as a generic method to apply on new type combination mechanisms．

Key words： floating concave arc pushrod      disc cam      floating coordinate system      classⅠ synthesis      supporting function      movement fidelity     
Received: 04 November 2013      Published: 28 August 2014
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CHANG Yong
QU Cheng-Long
Cite this article:

CHANG Yong, QU Cheng-Long. Research on motion fidelity of floating concave arc pushrod-disc cam combination mechanisms. Chinese Journal of Engineering Design, 2014, 21(4): 398-404.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn. 1006-754X.2014.04.016     OR     https://www.zjujournals.com/gcsjxb/Y2014/V21/I4/398


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关键词： 浮动凹弧底推杆,  盘形凸轮,  浮动坐标系,  Ⅰ类综合,  支撑函数,  运动保真 
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