拉维纳变速器结构设计 - 图文(2)

摘 要

变速器是改变改变汽车行驶过程中的速度的一个部件，可以改变发动机与驱动轮之间的关系，即改变了速度。目前的变速器种类多样，有自动和手动两种变速器，随着社会的发展，变速器更多的趋于自动，减少人为操作劳动，越来越方便人们的体验。

变速器的发展越来越快，越来越先进，让人们出行更加便捷。目前的汽车也更加细致的面对不同人来做出更加细致的改变。本文则是对拉维纳式的变速器做了简单的设计。从结构的分析，各个部件的作用，大致做了一些分析，以及加工选料也做了一定的分析和计算。

关键词：变速器 自动变速器 便捷

Abstract

The transmission is a component that changes the speed at which the car travels, changing the relationship between the engine and the drive wheel, that is changing the speed. The current variety of transmissions, there are two kinds of automatic and manual transmission, with the development of society, transmission more tend to automatically reduce the man-made operation of labor, more and more convenient people experience.

The development of transmissions is getting faster and more advanced. The current car is also more meticulous face of different people to make more detailed changes. This article is a simple design of the type transmission. From the structure of the analysis, the role of various components, generally do some analysis, as well as processing materials have also done a certain analysis and calculation. Also shows that the automatic transmission in all aspects of the benefits, for the protection of the ecological environment also has a very role. Is an important product in people's lives, so that people more convenient.

Keywords: transmission automatic transmission convenient

VII

目录

摘要 ........................................................................................................................................ I Abstract .............................................................................................................................. VII

第1章 绪论 ....................................................................................................................... 1

1.1 自动变速器的特点及分类 .................................................................................. 1 1.2 我国自动变速器的发展现状 .............................................................................. 2 1.3 设计目的 .............................................................................................................. 3 1.4 三速自动变速器齿轮变速系统的设计要求 ...................................................... 3 第2章 拉维纳式齿轮结构设计 ....................................................................................... 4

2.1 变速器齿轮机构图及工作原理 .......................................................................... 4

2.11 拉维纳自动变速器齿轮的机构 ................................................................ 4 2.12 各执行元件的功能 .................................................................................... 4 2.1.3 拉维纳自动变速器换挡原理 ................................................................... 5 2.1.4 变速器原理图 ........................................................................................... 5 2.1.5 各档位工作情况分析表 ........................................................................... 6 2.2 拉维纳自动变速器的设计 .................................................................................. 7

2.2.1 拉维纳自动变速器设计参数 ................................................................... 7 2.2.2 各档位传动比计算 ................................................................................... 7 2.2.3 最高车速的验算 ....................................................................................... 8 2.2.4 齿轮齿数的确定 ....................................................................................... 8

第3章 各齿轮元件参数确定及校核 ............................................................................. 12

3.1 齿轮材料的选择原则 ........................................................................................ 12 3.2 行星齿轮各元件计算 ........................................................................................ 12

3.2.1 齿圈受力及运算 ..................................................................................... 12 3.2.2 小太阳轮受力及计算 ............................................................................. 14 3.2.3 大太阳轮受力及计算 ............................................................................. 16 3.2.4 行星轮受力及计算 ................................................................................. 17 3.3 离合器摩擦片的选择 ........................................................................................ 17 3.4 小结 .................................................................................................................... 18 第4章 输入轴的强度校核及寿命分析 ........................................................................... 19 4.1 输入轴直径选择 ........................................................................................................ 19

4.1.1 轴的工艺要求及材料选择 ..................................................................... 19

4.1.2 轴径的初步估算 ..................................................................................... 19 4.2 输入轴的强度校核 ............................................................................................ 19 4.3 轴承的选择及寿命计算 .................................................................................... 21

4.3.1 轴承的选择 ............................................................................................. 21 4.3 …… 此处隐藏：4705字，全部文档内容请下载后查看。喜欢就下载吧 ……