中型客车的总布置设计（论文+DWG图纸）【优秀机械毕业设计】【word+CAD图纸全套】

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摘要

随着国民经济快速增长，人民物质生活水平的不断提高，国内公路网络越来越发达，人们出行对安全、舒适的高性能客车需求日益增长。但我国的大多数人都住在农村，经济发展水平很不平衡，随着城市化进程的加快，以及我国逐步步入老龄化社会，这些事实都预示着这样一个结果：发展中低档城乡间的中型客车在我国有很大的优势。为满足国内市场的需要，适应用户对经济、环保客车的需求，并在对国内市场进行调研的基础上，设计和开发出这款中型客车。

中型客车按中型中级标准设计，主要用于城乡之间公路客运。设计为36+1座，最大满足第三类车型的座椅要求，提高客车营运的经济性。中型客车的开发思路是侧重于经济性、实用性和可靠性，利用S5B底盘进行设计，设置大容量油箱及规格行李仓（3.30立方米），车内采用软装饰减震消音材料，实现车内空间宽敞。在适应用户需要及法规要求的前提下，合理选择各总成配置及结构设计，尽量采用通用结构，通过降低成本和提高客车经济性增加市场竞争力。本论文简要地介绍了此中型客车的设计目的，主要的结构特点、参数和技术参数。

关键词 长途汽车，结构参数，技术参数

ABSTRACT

Nowadaysour China has a very quick increasing of economy and the quality of life of we Chinesehas improved   rapidly,  and the net of highway is forming day by day,thus the traveling people’ requirements of safe and comfortable coach isalso  increasing day by day. But thetruth is that the majority of people live in countryside, the economic level isimbalance. For another, there is a trend of forming city in China and our society will havemore and more old people. All these facts predict that semi-low coach will havea superiority in domestic market. In order to meet the demand of economic and ‘green’coach in our market, we design EQS5B coach in terms of study domestic market.

Wedesign EQS5Bby the standard of middle-class and aiming to travel these people from city to country. The coach has36+1 seats and trys to satisfy the demand of class 3 style’ requirements forits seats and hit the target of ‘low price’. The principle of design this coachis to have more economic and practicality and reliable characters. Our chassisis EQS5Band we try to equip fitting gasoline tank and baggage box (nearly 3stere). We have flexible material to decorate the inner of coach body and tryto achieve an abundant space inside the coach. We make great effort to usecurrent configuration and enhance our competitive ability by the way ofdecreasing price and making more economic character of the coach. This paperbriefly introduces the design purposes, main structure characteristics andtechnical parameters about EQS5B coach.

KEYWORDS   coach, structure parameters,technical parameters