CRH2C动车组非动力转向架基础制动装置设计说明书

南京工程学院

车辆工程系

本科毕业设计（论文）

题目：CRH2C动车组非动力转向架基础制动装置设计专业：机械设计制造及其自动化(城市轨道车辆)

班级：城轨081 学号：

学生姓名：

指导教师：

起迄日期：2011.2.21～2011.6.10

设计地点：车辆工程实验中心

摘要

CRH2型动车组基础制动装置区别于CRH1、CRH3和CRH5，其动力轴配置2个轮盘式基础制动单元，非动力轴则配置2个轮盘式及2个轴盘式共4个基础制动单元。而对于CRH1、CRH3和CRH5拖车配置的全部只有轴装制动盘。CRH1、CRH3和CRH5制动夹钳单元结构为三点吊挂式。CRH2制动夹钳单元结构为气-液转换式。

国外对动车组的研究进行得比较早，许多国家都具有成熟的动车组技术，特别是日本、法国和德国等。CRH2C型电动车组就是为了进行提速，由铁道部向日本川崎重工引进并由我国的专家将之国产化的高速列车。

制动是列车安全运行的保障，制动技术是列车技术的重要组成部分。动车组的制动方式，按产生制动力的方法，可以分为摩擦制动、动力制动和电磁制动，按制动力的操纵方式，可以分为空气制动、电空制动和电制动。CRH2C型动车组采用了空气制动和再生制动联合制动的方式，以其良好的制动性能从而保证了列车的安全运行。

列车的减速力由本身提供的制动力和列车运行时所受到的阻力组成。列车减速时制动力不能大于轮轨之间的粘着力，否则会使车轮“抱死”从而对旅客的安全造成威胁。论文中通过对已有的列车基础制动装置参数的设计与分析，得到列车粘着力、制动力、制动距离等制动性能计算结果，从而验证了CRH2C型动车组非动力转向架的基础制动装置完全能满足安全性要求。

关键词：基础制动；制动距离；CRH2C；非动力转向架

ABSTRACT

CRH2 EMU basic braking device, different from CRH1，CRH3 and CRH5，whose power axis is equipped with 2 wheel disc basic braking unit, the non-power axis is equipped with 2 wheel disc and 2 axis disc, totally 4 basic braking unit. But for CRH1, CRH3 and CRH5 trailers only axis disc is equipped and their braking clamps unit structure is three-point hanging. But CRH2’s breaking cla mps unit structure is gas-liquid conversion type.

The EMU study conducted early aboard, many countries have mature EMU technology, particularly Japan, France and Germany. To carry out the speed, China’s experts’ localization CRH2C high-speed train, which the Ministry of Railways introduces to Japan by Kawasaki Heavy Industries.

Braking is the protection of the safe operation of the train, braking technology is an important part of train technology. Brake manner of EMU, according to the method of braking force generated can be divided into friction braking, dynamic braking and magnetic braking. According to the manipulation, it can be divided into air-brake, air-electrical brake and electrical power brake. CRH2C EMU used type of air brake and regenerative braking combined braking mode, with its excellent braking performance to ensure the safe operation of the train.

Train deceleration force composed by brake force provided by of their own power and the resistance component of it when the train runs. Train braking force no larger than adhesion between wheel and rail, or will the wheel "locking" to pose a threat to the safety of passengers. Adhesion on the train, braking forces, and braking distance is calculated in the paper. Then the train braking performance was obtained, which verifies the CRH2C EMU non-power bogie basic brake device can meet the security requirements.

Keywords：Basic brake, Braking distance,, CRH2C, Non-power bogie