基于SolidWorks的一阶椭圆齿轮参数化建模研究

First-order elliptic gear parametric modeling based on SolidWorks

针对椭圆齿轮在设计方面存在的计算复杂、效率低等缺点进行椭圆齿轮的参数化设计及自动建模的研究。根据椭圆齿轮节曲线和齿廓的基本理论建立数学模型,在理论分析的基础上以一阶椭圆齿轮为例,利用MATLAB程序设计语言编程求解椭圆齿轮的节曲线、齿轮齿廓曲线和齿形图。借助Solid Works的宏录制功能进行二次开发,实现椭圆齿轮的参数化设计及自动建模;随后使用Solid Works的VBA界面设计功能设计出一个界面,用户只需要在此界面的输入框里输入齿轮的参数并运行,便可由Solid Works自动创建一个椭圆齿轮。

In view of the problems of complexity and low efficiency when designing elliptic gears,the parametric design and automatic modeling of elliptic gears have been studied. A mathematical model was established based on the basic theory of elliptic gear pitch curves and tooth profiles. On the basis of theoretical analysis,MATLAB programming language was used to solve the elliptic gear＇s pitch curve,tooth profile curve and tooth shape. Taking a first-order elliptic gear as an example,Solid Works macros were used for parametric design,and a VBA interface was used to design an interface. Users thus only need to input parameters to the designed interface of the input box,and Solid Works will then automatically generate an oval gear.