λ型铰链四杆机构的轨迹综合及其误差分析  

Path Synthesis and Error Analysis of λ-formed 4-bar Linkages

作　　者：刘汇洋[1] 张彦斌[2] 吴鑫[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]河南科技大学建筑工程学院,河南洛阳471003

出　　处：《机械设计与研究》2007年第1期37-39,43,共4页Machine Design And Research

基　　金：河南省自然科学基金资助项目(0211062100)

摘　　要：分析了“λ”型曲柄摇杆机构的基本尺寸型的尺寸约束条件,建立了共包含9120组基本尺寸型连杆转角算子谐波特征参数的数值图谱库,实现了利用数值图谱法进行带有预定时标对称连杆轨迹的尺度综合,并对尺度综合时存在的误差进行分析定义,计算出了综合所得各组机构的各项误差值,为机构设计人员在选择可行机构时提供了有力的参考数据;综合算例表明该方法是可行有效的。Constrains of Basic dimensional types of k-formed crank-rocker linkages are analyzed. A numerical atlas database of harmonic characteristic parameters comprising 9120 basic dimensional types has been set up. An approach employed to synthesize symmetrical coupler path with prescribed timing is realized by using this numerical atlas method. Errors between the given path and the actual path have been classified and defined as point-to-point error and normal error. Errors of each mechanism synthesized have been obtained including mean point-to-point error,maximal point-to-point error,mean normal error and maximal normal error. The results provide reliable reference data for the designer. An example is available at the end of the paper.

关 键 词：四杆机构 轨迹综合 数值图谱法 误差分析 

分 类 号：TH112.1[机械工程—机械设计及理论]