A parametric model of tangential coefficient was built based on characteristics of gener-al scroll profiles.To study the dynamics characteristics of the scroll compressors for electric vehicles, a model of anti-rotation mechanism of cylindrical pin anti-rotation structure was established.On the basis of operational principles of anti-rotation mechanism of cylindrical pin,the forces acted on the cy-lindrical pins were analyzed with kinematics and the mechanisms.UG was used to design three-dimen-sional models of the scroll plate and other parts,and a virtual prototype model was established.By the kinematics simulation of the scroll compressor the accurate curves of kinematics parameters were ob-tained.It may ensure the accuracy and reliability of the cylindrical pin anti-rotation structurs.%根据通用涡旋型线的特性建立了切向角系数参数化模型;针对电动汽车涡旋压缩机防自转结构的动力特性问题,建立了圆柱销防自转机构的机构模型;基于圆柱销防自转结构的工作原理,从机构学和运动学的角度分析了圆柱销的受力.利用UG软件平台,实现动涡旋盘及电动涡旋压缩机其他零件的三维实体建模,构建虚拟样机模型.通过运动仿真,获得准确的运动学参数曲线,确保圆柱销防自转结构设计的准确性和可靠性.
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