基于Assur机构构成模式的非零开式运动链的构型  

Configuration of Non-zero Open Kinematic Chain based on Assur Group

作　　者：李佳[1] 孔建益[1] 廖汉元[1] 侯宇[1] 

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081

出　　处：《机械传动》2013年第2期8-12,共5页Journal of Mechanical Transmission

基　　金：湖北省自然科学基金项目(2010CDB03406)

摘　　要：提出了一种n杆非零开式运动链的构型方法,研究变胞机构的组成原理。将机构的构建理解为,将自由度大于零的非零开式链连接到机架和原动件上而构成机构,机构的自由度为该非零开式链的自由度与原动件数之和。推导出了F=1的运动链36种;F=2的运动链57种。这些运动链与主动件和机架相连可分别构成F=2、F=3的机构,将为变胞机构的型综合提供依据。The method of configuration for non - zero open kinematic chain with n - links is introduced, con- struction theory of metamorphic mechanism is studied. The construction of mechanism could be considered as such pro- cess that mechanism will be constructed by means of connecting non - zero open kinematic chain which is of more than zero degree of freedom with rack and driving link. The degree of freedom of non - zero open kinematic chain plus the numbers of driving link is equal to the degree of freedom for this mechanism, 36 types of kinematic chain are studied in case of F = 1,57 types of kinematic chain are studied in case of F = 2, some mechanisms with F = 2 or F = 3 could be constructed by means of connecting these kinematic chains with driving link and rack, the theory will be useful for type synthesis of metamorphic mechanism.

关 键 词：变胞机构 非零开式运动链 型综合 

分 类 号：TH112[机械工程—机械设计及理论]