铰链孔轴线角度误差对平面连杆机构影响度的分析  

Analysis of Influence Degree of Hinge Hole Axis Angle Error on Planar Linkage

作　　者：杨长牛[1] 赵鹏云 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]长虹中央空调研发中心,四川绵阳621000

出　　处：《机械传动》2010年第11期66-70,共5页Journal of Mechanical Transmission

摘　　要：根据空间直线角度转换原理推导出了空间直线及其在坐标面中的投影与坐标轴夹角的相互换算关系;以平面铰链四杆机构为例建立模型,针对连杆铰链孔的轴线误差在连杆平面内和垂直于连杆的平面内两种情况,分析了存在铰链孔轴线角度单因素误差时的平面连杆机构的影响度,分别建立了评定影响度的数学表达式,为平面连杆机构的自调结构设计提供了理论依据和数学基础;计算实例证明了利用空间角度转换法对存在铰链孔轴线角度误差的平面连杆机构影响度分析的正确性和有效性。Using the spatial theory of angular inversion,relation of inversion between the projection of line in a space and its coordinate plane and the crank angle of coordinate axes is derived.Based on the planar hinge four-bar linkage,and hinge hole axis angle error both inside and vertical to the planar linkage,a model is created to analyze the influence degree with a single factor error of shaft angle of hinge hole,with mathematical expression evaluate the influence degree,and the theoretical and mathematical basis for the design of self-adjusting structure is provided.Computational examples also prove that the analysis is correct and effective.

关 键 词：空间角度转换法 角度误差 平面连杆机构 影响度 分析 

分 类 号：TH112[机械工程—机械设计及理论]