重型货车气压制动系统结构设计【论文+CAD图纸+开题报告+翻译】

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摘要

汽车制动系的功用是使汽车以适当的减速度降速行驶直至停车；在下坡行驶时，使汽车保持适当的稳定车速；使汽车可靠地停在原地或坡道上。汽车的制动性是汽车主动安全性研究的重点内容之一。随着汽车行驶车速的不断提高，对汽车制动性能的要求也越来越高。汽车的制动系统除了实现良好的制动性能外，还要尽可能地减小驾驶员的工作强度。因此，动力制动系统在汽车上得到了广泛的应用。

气压动力制动是最常见的动力制动系统，多用于中重型汽车。气压制动系统是发展最早的一种动力制动系统。其供能装置和传动装置全部是气压式的。其控制装置大多数是由制动踏板机构和制动阀等气压控制原件组成，也有的在踏板机构和制动阀之间还串联有液压式操纵传动装置。本文以一种重型货车为研究对象，通过理论分析和计算对其气压制动系统结构进行设计。

关键词：气压制动；制动性；重型货车；传动装置；

ABSTRACT

Automobile brake system function is to reduce the speed of cars to slow down and drive right up to parking,When traveling downhill, so that the stability of vehicle speed to maintain proper To make reliable cars parked in the ramp or in situ.

The brake performance iS one of the most important safe performances for the automobile．With the increase of running speed of the vehicle；the requirements to the brake performance are getting more and more strict．Besides the good brake performance，the brake system of the automobile is required to reduce the pedal force of the driver．Therefore，the power servo brake system has made a great development in the automobile．

The barometric brake system is the most familiar power servo brake system．The barometric brake system is the first development of a dynamic braking system. Its energy supply all equipment and gear-type pressure Most of the control device is a brake pedal and the brake and other institutions formed the original, Also some in the brake pedal between institutions and also in series with hydraulic control gear. In this paper, the application of a kind of heavy goods vehicles, Through theoretical analysis and calculation of the structure of its air brake system design.

Key words；barometric brake syste;rake performance;heavy-duty truck;

Drive Equipment;

1绪论

1.1制动系的作用

1.2气压制动系的研究现状

2制动系的总体设计

2.1制动系统设计要求

2.2制动系参数的选择

2.3汽车总质量

2.4制动力与制动力分配系数

2.5制动器最大制动力矩

3制动器的设计与计算