文档介绍：摘要
近三十年代来,随着空间啮合理论的不断突破,工业生产迅速发展的需要,动力蜗杆传动在高速、重载、小速比条件下使用得越来越多。为了适应这种要求,人们不断地探索提高蜗杆传动性能的途径,这首先是寻找最佳的齿廓形状,其次是提高蜗杆齿面的硬度,传动精度等指标,以期获得良好的使用性能和工艺性能。近几十年来,我国在蜗杆传动的研制方面取得了很大的进展,相继出现了很多新型蜗杆传动,例如圆弧齿圆柱蜗杆传动,平面二次包络弧面蜗杆传动及锥蜗杆传动等等,这使蜗杆传动的发展达到了相当高的技术水平。
Auto LISP语言最典型的应用之一是实现参数化绘图程序设计,包括尺寸驱动程序、鼠标拖动程序等。尺寸驱动是通过改变实体标注的尺寸值来实现图形的自动修改;鼠标拖动是利用Auto LISP语言提供的函数,直接读取Auto CAD的输入设备(如鼠标),任选项追踪光标移动存在且为真时,通过鼠标移动光标,调整所需的参数值而达到自动改变屏幕图形大小和形状。大多数参数化程序都是针对二维平面图编制的。本文以AutoCAD为支撑平台,用Auto LISP语言对其进行二次开发。开发出涡轮蜗杆零件图的参数化绘图系统,该系统可以让用户在对话框中输入涡轮、蜗杆的相关参数之后,自动绘制出整幅涡轮、蜗杆零件图。
关键词:蜗轮蜗杆,Auto Lisp,参数化绘图,二次开发,零件图
Abstract
Nearly 30 s, with space of meshing theory constantly breakthroughs, the needs of the quick development of industrial production, the power worm transmission in high speed, overlap, small ratio condition to use it more and more. In order to adapt the request, people to explore the way to improve the worm transmission performance, it is first search for the optimal tooth profile shapes; the second is to improve the hardness of worm gear, transmission precision index, to obtain good performance characteristics and process performance. In recent decades, in the development of the worm drive in China have made great progress, essively appeared many new worm transmission, such as arc gear cylindrical worm transmission, planar quadratic envelope curve worm transmission and cone worm transmission, and so on, this makes the worm drive to a very high level of technology.
Auto LISP language of one of the most typical application is the realization of parameterized drawing program design, including the driver, the mouse size procedures, etc. Dimension driven by changing with the entity is size values to realize the graphics changes automatically; The mouse is using Auto LISP language provides the function of Auto CAD directly read input device (such as mouse), choose a tracking cursor movement exist and is really true, through the mouse cursor, adjust the parameter value and to achieve automatic change s