【摘要】 在原四杆机构空间模型理论基础上，建立了四杆运动链空间模型，并给出了四杆运动链的标准尺寸型及其关系式。在空间模型中，根据有无整周转动杆件又将其分成若干子空间，为进一步系统分析打下基础。该空间模型的建立，将使四杆机构的性能图谱大为减少，并可实现一图谱多用，为工程设计人员提供了方便更多还原

【Abstract】 Based on the spacial model of 4-bar linkages, a new spacial model of 4-bar chains was established Under the assumption of standard size model, the basic formula was deduced and the spacial model was divided into 3 parts, in which there were different 4-bar chains This is useful for further analysis This spacial model will make the amount of characteristic curves of 4-bar linkgae decreased; On the other hand, the curves can be used in many ways This is very convenient for the designers更多还原