Techniques and methods are discussed here to desing and check the sprocket wheel strength with Visual Basic5.0, also to parametrize zutocrat using AutoLISP language and command files and menu files of AutoCAD, with an example of Sprocket wheel part.

• 论述采用vb（VisualBasic）程序简化链轮设计计算工作，同时采用AutoCAD命令文件菜单文件及AutoLISP语言实现参数化绘图，并给出了设计实例。