渐开线绘图仪设计

Design of Involute Drawing Plotter

摘要: 针对工程制图课堂教学和相关设计绘图中渐开线绘制的难题，根据渐开线的产生原理，设计一款渐开线绘图仪，并对绘图轨迹、关键零件的设计进行了研究。该绘图仪主要由齿轮齿条传动机械系统和定心及绘图装置等结构组成，调节定心装置和齿条初始位置，可以绘制出不同基圆半径，不同起始位置的渐近线。绘图仪中结构简单、携带方便、绘制精度高，是渐开线齿轮设计和绘图教学的得力工具。

Abstract: Aiming at the problem of involute drawing in engineering drawing class and related design drawing, an involute plotter is designed according to the generating principle of involute, and the design of the plotting tracks and key parts is studied. The plotter is mainly composed of gear and rack transmission mechanical system, centering device, and drawing device. By adjusting the centering device and the initial position of rack, the involute with different base circles and different starting positions can be drawn. The plotter has the advantages of simple structure, convenient carrying and high drawing precision. It is a powerful tool in the teaching of involute gear design and drawing.