混合驱动平面两自由度五杆机构的完全分类  

A Study on the Classification of the Mechanisms with 2-DOF of Hybrid Input Planar Five-Bar Linkages

作　　者：方新国[1] 邹慧君[1] 周双林[1] 

机构地区：[1]上海交通大学机械工程学院,上海200030

出　　处：《机械科学与技术》2003年第1期74-76,79,共4页Mechanical Science and Technology for Aerospace Engineering

摘　　要：不使用传递角而利用四杆开链机构工作空间的位置关系及可装配条件 ,分析满足混合输入要求的所有五杆机构类型和它们的不等式。它比利用传递角得出的不等式更能确定尺寸关系。根据在混合五杆机构的四个杆中 ,可能为曲柄的杆的个数 ,将它分为三种类型 :无条件三曲柄两种、无条件两曲柄十种和无条件单曲柄十六种。根据五杆机构不出现奇异性的条件 ,进一步得到满足混合输入要求且不出现奇异位置的五杆机构的三种类型。这三种类型为混合五杆机构尺度综合提供重要的尺寸约束条件 ,同时也为混合五杆机构的分析和设计提供重要的理论基础。By the position relationship of open-chain′s workspace,and a four-bar mechanism′s assemblability law and Grashof criteria, this paper deals with all types of hybrid input five-bar mechanisms and their inequalities. The hybrid five-bar mechanism is divided into three types: two kinds of unconditional three-cranks, ten kinds of unconditional two-cranks and sixteen kinds of unconditional single-crank. Finally, according to the condition of no singluar position of five-bar mechanism, three kinds of five-bar mechanisms were derived which satisfy the requirement of hybrid input and no singluar position. These types provide the important constraint condition for dimensional synthesis of the hybrid input five-bar mechanisms.

关 键 词：混合驱动五杆机构 曲柄 工作空间 机构类型分析 

分 类 号：TH112[机械工程—机械设计及理论]