基于CAD技术的蜗轮蜗杆

机械论文编号:JX078  字数:8778,页数:34   
目   次
1    引言 ………………………………………………………………………1
2    传动装置的总体设计………………………………………………………1
2.1     拟订传动方案 …………………………………………………………1
2.2     电动机的选择…………………………………………………………2
2.3     确定传动装置的传动比及其分配……………………………………4
2.4     计算传动装置的运动和动力参数…………………………………4
3    传动零件的设计计算……………………………………………………  5
3.1     高速级蜗轮蜗杆传动设计……………………………………………5
3.2     低速级链传动设计…………………………………………………  11
4    轴的设计…………………………………………………………………13
4.1     低速轴的设计…………………………………………………………13
4.2     高速轴的设计…………………………………………………………16
5    轴承的选择和计算………………………………………………………17
5.1     低速轴的轴承的选择和计算…………………………………………17
5.2     高速轴的轴承的选择和计算…………………………………………19
6    键联接的选择和强度校核………………………………………………19
6.1     高速轴键联接的选择和强度校核……………………………………19
6.2     低速轴与蜗轮联接用键的选择和强度校核…………………………19
7    联轴器的选择和计算……………………………………………………19
7.1     高速轴输入端的联轴器………………………………………………19
7.2     低速轴输出端的联轴器………………………………………………20
8    减速器铸造箱体的主要结构尺寸………………………………………20
9    减速器的润滑……………………………………………………………21
10   主要零件的加工工艺……………………………………………………22
11   蜗轮蜗杆参数生成及油温验算程序……………………………………23
12   结  论……………………………………………………………………27
13   致  谢……………………………………………………………………28
14   参考文献…………………………………………………………………29
附图1  减速器整体效果图……………………………………………………30
附图2  减速器爆炸结构图……………………………………………………30
附图3  蜗杆……………………………………………………………………31
附图4  蜗轮……………………………………………………………………31

摘要
蜗轮蜗杆减速器用于原动机和工作机或执行机构之间，起匹配转速和传递转矩的作用，在现代机械中应用极为广泛。但其设计过程繁琐、周期长、效率低；随着科学技术和国民经济的发展，蜗轮蜗杆减速器的需求量越来越大，且对质量提出了更高的要求，而采用传统的设计方法己远远不能够满足技术发展的需要。
本课题运用强大的三维造型软件Pro-E实现了减速器CAD中典型零部件的三维实体建模及装配仿真。很好的体现了计算机辅助设计的优越点，它高效，便捷的特点得到了淋漓尽致的发挥，不仅使计算，绘图容易许多，也使零件的工艺设计轻松很多。
同时，准确的蜗杆还有利于进行后续的装配或和使用，并能很好地体现出计算机灵活、快捷、方便的优点，而且在参数化输入时，界面有友好、方便的交互式对话框，这些都是传统的设计方法所不具有的优点。

关键词  蜗杆传动  减速器  CAD  实体造型  装配仿真

外文摘要
Abstract
Worm decelerator is used between motor and implement mechanism, it takes an effect as matching rotate speed and transferring torque, and is used in modern machine extensively. But its design takes long times and great eforts with low designing efficiency; with development of science and technology and national economy, not only the requirement of worm decelerator is in larger and larger number, but also in higher and higher quality. Traditional methods of design are far beyond the requirement in development of technolog.
This paper is using the strong three-dimensional model software Pro-E to relize the three-dimensional solid modeling and assembly simulation of typical parts.It have very, high-efficient and fine embodiment some superiority of CAD.The convenient characteristic has got thorough full play , not only is it calculate to make, drawing easy a lot of, make technological design a lot easily of part.
At the same time, the accurate pole of snail still is advantageous to carrying on the follow-up assemble or and usage, and can nicely the body appears the vivid, fast and convenient advantage of calculator, and at the parameter turns the importation, the interface contain amity, hand over conveniently with each other the type dialog box, these are all traditional design method not have of advantage.

Keywords  Spread to move of snail pole,   Decelerator,   CAD
          Solid modelin,   Assembly Simulation