有轨电车制动系统方案设计(2)

西南交通大学本科毕业设计（论文） 第V页

Abstract

In today’s society, the urban population increases unceasingly, the cities become bigger and bigger, urban public transport system are also developed rapidly. As the typical representative of the small-capacity urban rail transport system, the tramcar plays a very important role in people’s daily life. The tramcar is suitable for the scale of relatively small cities, with the characteristics of large capacity, low cost of operation and construction, non-polluting to the environment, quickly and comfortable.

As one of the most important equipment of the tramcar, braking system must have the characteristics such as safety, fast and accurate. Performance quality of braking system, whether relates the tramcar synthesis technical level and the movement quality of enhancing, more importantly, it relates to traffic safety of the tramcar.

In this paper, it introduced the tramcar braking system's composition, the principle and how to control it. It mainly includes the basic concepts of brake, characteristics of tramcar braking system, the working principle and control method of all parts of the braking system, like air braking, electric braking, complex braking, spare braking, braking command transmission and so on. Consulted the braking system of tramcar named “Dalianren”, I designed this tramcar braking system. The system uses microcomputer control electro-pneumatic brake, it’s mainly constructed by air braking and dynamic braking, with the functions of normal braking, emergency braking and park braking. Use complex braking which compound of air braking and dynamic braking while nomal braking, use dynamic braking first, and use air braking as supplementary when dynamic braking can’t meet the requirements. Use pure air braking while emergency braking.

Through this design, we can get some results: the braking system of this paper can meet the requirements of all braking situation of new kind tramcar.

key words: tramcar braking system complex braking design

西南交通大学本科毕业设计（论文） 第VI页

目录

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

1.1选题背景： ................................................................................................................................. 1

1.2国内外发展现状 ......................................................................................................................... 2

第2章 有轨电车制动概述 ................................................ 4

2.1制动基本概念 ............................................................................................................................. 4

2.1.1制动的基本概念 .............................................................................................................. 4 2.1.2制动方式 .......................................................................................................................... 4 2.2有轨电车制动系统特点 ............................................................................................................. 5

2.2.1有轨电车基本特点 .......................................................................................................... 5 2.2.2有轨电车制动系统的特点 .............................................................................................. 5 2.2.3对有轨电车制动的总体要求 .......................................................................................... 5

第3章 有轨电车制动系统的组成、原理及控制 .............................. 7

3.1空气制动 ..................................................................................................................................... 7

3.1.1空气制动原理 .................................................................................................................. 7 3.1.2空气制动控制原理 .......................................................................................................... 9 3.1.3模拟型EP阀及其控制 .................................................................................................. 13 3.1.4中继阀原理 .................................................................................................................... 17 3.1.5空气制动基础制动装置 ................................................................................................ 20 3.2电气制动 ................................................................................................................................... 20

3.2.1电气制动原理 ................................................................................................................ 20 3.2.2电气制动特性 ................................................................................................................ 21 3.2.3电气制动的控制 ............................................................................................................ 22 3.3制动指令及其传输 ................................................................................................................... 22

3.3.2电气指令模式及传输 .................................................................................................... 23 3.3.3指令方式与制动控制模式 ............................................................................................ 24 3.4复合制动 ................................................................................................................................... 25

3.4.1复合制动设计原则 ........................................................................................................ 25 3.4.2复合制动力的控制 ........................................................................................................ 26 3.4.3复合制动的粘着控制 ........................................................................................ …… 此处隐藏：8923字，全部文档内容请下载后查看。喜欢就下载吧 ……