【摘要】 本文论述了平面零自由度运动链的研究工作的实用意义和理论价值。首先根据平面零自由度运动链的结构特点对其进行了系统的分类，然后介绍了基本刚性链的重要性质及其在机构综合中的应用，最后还给出了一种利用基本刚性链来表示阿苏尔杆组图谱的简明而有效的方法。更多还原

【Abstract】 In this paper,the practical effccts and theoretical values of the study of planar kinematic chains with zero degree of freedom is discussed.Firstly,the planar kinematic chains bave been systemmatially classified based on its structure.Then,some important characteristics of the basic rigid chains and their application in the synthesis of mechanisms are introduced.Finialy,a concise and effi- cient method for representing the atlas of the structure of Assur group,using basic rigid chains,has been given.更多还原