释放凸轮轴心的浮动滚子推杆盘形凸轮机构第Ⅱ类尺寸综合问题  

The second-dimensional synthesis task of disc cam mechanism of releasing cam center with the floating roller push rod

作　　者：魏司凯 储怡[2] 常勇 WEI Si-kai;CHU Yi;CHANG Yong(School of Mechanical Engineering,Jimei University,Xiamen 361021;School of Science,Jiamusi University,Jiamusi 154007)

机构地区：[1]集美大学机械与能源工程学院,福建厦门361021 [2]佳木斯大学理学院,黑龙江佳木斯154007

出　　处：《机械设计》2022年第7期46-50,共5页Journal of Machine Design

基　　金：国家自然科学基金项目(51175224&51475209);福建省自然科学基金项目(2010J01302)。

摘　　要：通过释放凸轮轴心O_(1),提出了具有拓展性、创新性的德国进口高速印刷机送纸机构演化型,以及对应的浮动滚子推杆盘形凸轮机构第Ⅱ类尺寸综合问题及其准确描述。通过建立“固定坐标系O_(3)-xy”“浮动坐标系O_(2)-uv”和划分推程前半区段、后半区段,提出了“瞬时区间套[v_(C_(1)),v_(C_(2))]”“整程区间套[v_(C_(1)max),v_(C_(2)min)]”生成原理和求解方法,以及求解凸轮最小基圆半径r_(0min)的理论和方法。计算实例表明:释放凸轮轴心O_(1),演化型较之原始型更具宽泛性、一般性,可得到更优、更紧凑尺寸的机构解。In this article,by releasing the cam center O_(1),an extended and innovative evolutionary type of the feeding mechanism for high-speed printing machines imported from Germany is proposed;the second-dimensional synthesis task of the disc cam mechanism floating roller push rod is carried out with accurate description.By setting up “the fixed coordinate system O_(3)-xy” and “the floating coordinate system O_(2)-uv” as well as dividing the first and second halves of the pushing course,“the instantaneous nested interval [v_(C_(1)),v_(C_(2))]” and “the whole nested interval [v_(C_(1)max),v_(C_(2)min)]” generation principles and solution methods are proposed,along with the theory and method of solving the minimum base circle radius r_(0min) of the cam.The calculation examples show that by releasing the cam center O_(1),the evolutionary type is more broad and general than the original type,and the mechanism solution with better and more compact dimensions can be worked out.

关 键 词：第Ⅱ类尺寸综合 凸轮轴心释放 瞬时区间套 整程区间套 基圆半径 

分 类 号：TH112[机械工程—机械设计及理论]