25kw行星齿轮减速器的设计

00装配图-A0

摘要
本文旨在介绍汽车齿轮减速器的结构，并完成设计。通过已有针对于汽车减速器的知识，不难发现其传动比一般较小，再检索不同的传动结构，最终确定基本类型。因此，本文主要介绍引进一些传动机的结构设计、计算等工作，当然也包括行星齿轮架。以输入功率，输入转速等参数为依据，分析并确定下来本次设计的整体结构。最终通过设计出大致的整体结构后，对于一些关键的部件进行一些科学合理的强度试验。最终得到的结果同其他设计的结构相比。本文在行文过程中主要分为以下三个方面：首先，本次设计使用浮动机构，以便均匀分配三个行星齿轮的负载，也就是说高速轴是通过齿形联轴器与太阳轮进行的连接；其次，齿轮箱的内圈齿轮和和箱体的分离是通过螺栓和圆锥销实现的；最后，在完成了整个设计的基础上，在文末对整个设计做出回顾与展望。
关键词：行星齿轮;传动机构;齿轮减速器;强度试验
Design of 25 kW planetary gear reducer

Abstract
In this paper, the structure design of the first stage planetary gear reducer is completed. The reducer has a small transmission ratio, and then compares various transmission structures to determine the basic types of transmission. The main part of the paper is the design and calculation of the main components of the transmission mechanism, including the sun gear, planetary gear, inner gear ring and planetary carrier. After the general structure of the gear reducer is determined by the given input power, transmission ratio, input speed and working condition coefficient, the design and calculation of the overall structure and the strength check calculation of the main components are carried out. The design of the reducer has three characteristics compared with the structural design of other reducers: first, in order to evenly distribute the load of the three planetary wheels, the tooth type floating mechanism is adopted, that is, the sun wheel and the high-speed shaft are connected together by the tooth type coupling, so as to realize the floating of the sun wheel; second, the gearbox body adopts the flange type box, the upper and lower boxes The inner ring gear and the box body are separated and fixed together with the upper and lower boxes by bolts and taper pins. Finally, the whole design process is summarized, and the overall structure design of the reducer is basically completed.

Key words: planetary gear;driving machanism; structural design; checking calculatio

目录
摘要I
Abstract II
1绪论1
1文献综述1
1.1行星齿轮减速器国外研究进展2
1.2.1国内行星齿轮减速器的发展3
1.2.2国内行星减速器存在的问题4
2行星齿轮减速器的背景及开展研究的意义4
2.1行星齿轮减速器的研究背景4
2.2行星齿轮减速器开展研究的意义5
3行星齿轮减速器研究方法及研究内容与目的6
3.1行星齿轮减速器研究的方法6
3.2行星齿轮减速器研究的内容7
3.3行星齿轮减速器研究的目的7
4传动方案的确定7
4.1确定行星传动的类型7
4.2电机的选择8
4.3 W机构的选择8
4.4零件材料和热处理的选择9
5配齿计算9
5.1确定各齿轮的齿数9
5.2初算中心距和模数10
5.3几何尺寸计算13
5.4装配条件验算14
5.4.1邻接条件14
5.4.2同心条件14
5.4.3安装条件15
5.5齿轮强度校核16
5.5.1 a-c传动强度校核16
5.5.2 c-b传动强度校核22
6轴的设计计算28
6.1行星轴设计28
6.2转轴的设计31
6.2.1输入轴设计31
6.2.2输出轴设计32
7行星架和箱体的设计34
7.1行星架的设计34
7.1.1行星架结构方案34
7.1.2各个行星齿轮的轴孔的孔距的相对偏差35
7.1.3转臂x的偏心误差35
7.1.4各个行星轮轴孔的平行度公差35
7.1.5平衡性要求36
7.1.6浮动构件的轴向间隙36
7.2箱体的设计37
7.3密封和润滑37
7.4材料和热处理要求38
7.4.1齿轮材料和热处理要求38
7.4.2选择齿轮材料的原则38
7.4.3其他零件的材料和热处理要求39
参考文献41
致谢43

01三维

CAD图纸

齿轮

齿轮轴

行星架

前端盖

后端盖

三维文件

输出轴