机械毕业设计（论文）-售货车二类底盘毕业设计.doc

摘要
制动系统是汽车主动安全的重要系统之一。如何开发出高性能的制动系统,为安全行驶提供保障是我们要解决的主要问题。,随着汽车市场竞争的加剧,如何缩短产品开发周期、提高设计效率,降低成本等,提高产品的市场竞争力,已经成为企业成功的关键。
本说明书主要介绍了基于二类底盘售货车制动系统的设计。首先介绍了汽车制动系统的发展、结构、分类,并通过对鼓式制动器和盘式制动器的结构及优缺点进行分析。最终确定方案采用液压双回路前后均为盘式制动器。除此之外,它还介绍了前后制动器、制动主缸的设计计算,主要部件的参数选择及制动管路布置形式等的设计过程。
关键字:制动;盘式制动器;液压
Abstract
The rapid development of the domestic vehicle market, saloon car is an important tendency of vehicle. However, with increasing of vehicle, security issues are arising from increasingly attracting attention, the braking system is one of important system of active safety. Therefore, how to design a high-performance braking system, to provide protection for safe driving is the main problem we must solve. In addition, with petition of vehicle market, how to shorten the product development cycle, to improve design efficiency and to lower costs, to improve the petitiveness of products, and has e a key to ess of enterprises.
This paper mainly introduces the design of braking system of the two type classic of car. Fist of all, braking system’s development, structure and category are shown, and according to the structures, virtues and weakness of drum brake and disc brake, analysis is done. At last, the plan adopting hydroid two-backway brake with front disc and rear drum. Besides, this paper also introduces the designing process of front brake and rear brake, braking cylinder, parameter’s choice of ponents braking and channel settings.
Key words: braking; disc; hydroid pressure
目录
摘要 Ⅰ
Abstract Ⅱ
第1章绪论 1
制动系统设计的意义 1
制动系统研究现状 1
制动系统设计要求 2
本章小结 3
第2章制动系统方案论证分析与选择 4
制动器形式方案分析 4
鼓式制动器 4
盘式制动器 7
制动驱动机构的结构形式选择 8
简单制动系 8
动力制动系 8
伺服制动系 9
液压分路系统的形式的选择 10
II型回路 10
X型回路 11
其他类型回路 11
液压制动主缸的设计方案 12
本章小结 14
第3章制动系统设计计算 15
制动系统主要参数数值 15
相关主要技术参数 15
同步附着系数的分析 15
制动器有关计算 16
前轮盘式制动器主要参数确定 16
后轮盘式制动器主要参数确定 17
制动系统相关计算 19
前轮盘式制动效能因数 19
后