| This paper is mainly focus on the planar gear-linkage mechanism (GLM), which can be applied in various ways. The author use the basic kinematics theory to analysis the influences of transmission ratios to the characterized curve of the GLM, put the curve on the computer screen, develop corresponding software by VC and reappear the whole process of the GLM. In virtue of the method mentioned above, a lot of time people spend on the mechanism inspection and actualization can be saved, and the innovation capability of researchers can be improved by the virtual simulation of the movement of the GLM.Firstly, based on close-vector-equation method, the mathematic models of nine kinds of the GLM are established. Secondly, the equations are resolved by numerical computing method, as a result, the values of kinematics parameters are gained, which can offer realized data for immediately simulation. The relational graph between transmission ratios and characterized curve can be obtained, after the serious analysis of the output. Thirdly, the 3D part library is developed by two ways of parameter driving, and the problems of collision among models are avoided by"Fourbar-gear"software. Lastly, the author develops the simulation software by loading DLL in SolidWorks to reappear the 3D movement of the GLM.
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