基于ProE的行星齿轮减速器设计

基于Pro/E的行星齿轮减速器设计

摘要

目前，减速器作为机械传动装置应用日益广泛，但其复杂的结构给设计工作带来了重复性和繁琐性。正基于此，本论文开发了基于Pro／E的渐开线行星齿轮减速器三维参数化CAD系统，通过该系统，用户可以在可视化平台上实现交互式设计，大大提高其设计效率和设计质量，缩短产品的开发周期，也方便了产品后续的运动仿真和有限元分析等，符合现代设计思想的发展要求。

Pro/E系统是3D CAD/CAM实体设计系统,Pro/E最显著的优点是造型功能强,目前在工业设计中已经获得广泛的应用，越来越多的设计人员用Pro/E进行三维设计。

本文主要基于Pro/E设计行星减速器,行星减速器的设计过程主要包括行星传动设计，均载机构的设计计算、轴和轴承的选择计算与校核，Pro/E建模等过程。在本次行星减速器的设计中，由于减速器齿轮传动中的两个内齿轮齿数不相同，而公共行星轮要同时与两个内齿轮相啮合，故行星减速器必须要采用角度变位。在实际中，由于行星减速器由于不可避免的制造和安装误差，以及构件的变形等因素的影响，致使行星轮间的载荷分布是不均匀的，本次设计是基于Pro/E的实体设计，这样就更加直观的发现设计中所存在的问题，并加以优化。关键字：齿轮减速器；行星传动；均载机构；Pro/E

Abstract

At present, gear reducer is a mechanical driving device which is extensively applied in mechanism. But designing reducer is a perplexing and iterative process because of its complicated structure. The paper expounds the techniques of building a 3D parametric CAD system of involute planetary reducer based on Pro/E. Through this system, users can interactively design all parts of the reducer on the visual circumstance. This system not only improves designing quality and efficiency, but also be of value to movement simulation and finite element analysis. So it satisfies the development of modern designing.

Pro/E is an entity designing system of 3D CAM/CAD. The most notable merit of Pro/E is the powerful function in modeling. And now, it is applied widely in industry design, and used by more and more designers in 3D design.

In this paper, the planetary decelerator is design based on the Pro/E. Our works mainly include the design of planetary transmission, calculation of the load balancing mechanism, design of organization calculate, the choice of axle and axletree according to our calculation data, and modeling the whole process using Pro/E. Because of the different numbers of teeth of the two inner gear wheels in the decelerator, and the public planetary gear should mesh with the two inner gear wheel at the same time, so the planetary decelerator must adopt the angle correcting. In reality, because of unavoidable errors in manufacture and installation of the planetary decelerator, and the influence by the factors such as the deformation of component, etc., the non-uniform of the load of the planetary wheels distribution is caused. Based on the entity designing system Pro/E, our design can discover the problems more intuitively and can optimize the design.

Key words: Gear decelerator, Planetary transmission, Load balancing mechanism, Pro/E

目录

第一章前言 (1)

1.1国内外研究现状 (1)

1.1.1行星齿轮减速器的发展概况 (1)

1.1.2行星齿轮减速器的特点 (1)

1.2本论文解决的关键问题 (2)

1.3本论文研究的主要内容 (2)

第二章行星齿轮传动的设计 (4)

2.1行星齿轮传动的设计计算 (4)

2.1.1选取行星齿轮传动的传动类型 (4)

2.1.2配齿和主要参数计算 (4)

2.1.3配齿结果的验算 (9)

2.1.4啮合要素计算 (10)

2.1.5传动效率的计算 (11)

2.1.6齿轮的结构设计 (12)

2.1.7齿轮强度验算 (13)

2.2 行星轮减速器均载机构的设计 (16)

2.2.1 均载原理 (16)

2.2.2 行星轮间载荷分布不均匀性分析 (17)

2.2.3 均载机构的设计 (17)

2.3 轴的设计计算 (19)

2.3.1高速轴的结构设计 (19)

2.3.2中间轴的结构设计 (24)

2.3.3低速轴的结构设计 (28)

2.4 滚动轴承的选择和计算 (32)

2.5 行星架的选择 (34)

第三章减速器基本零件三维成型 (35)

3.1行星轮齿轮三维成型 (35)

3.1.1行星齿轮 (35)

3.1.2 内齿轮b三维成型 (38)