【毕业论文设计】轻型货车前桥总成设计.doc

毕 业 论 文 题 目 轻型货车前桥总成设计 院(系)别 专 业 级 别 学 号 姓 名 指导老师 华 侨 大 学 教 务 处 2011年6月 轻型货车前桥总成设计 摘要 随着市场经济的发展，轻型货运汽车以其机动灵活、经济省油、高性价比、多功能的特点，逐渐成为市内货物运输或短途货物运输的主要运输工具，是城市物流系统的主力车型。汽车制造企业为了占领市场，必须开发设计出造型美观、布置合理、结构先进、具有高动经性的轻型货车。 车桥通过悬架和车架相连，它的两端安装车轮，其功能是传递车架与车轮之间各方向的作用力及其力矩。前桥的主要功能是承载，行走，转向和制动，通过对前桥的研究和设计，可以对轻型货车的发展有着重要的意义，可以让轻型货车行走更加的平稳，更灵活，从而使轻型货车更好的为社会服务。 本文首先对轻型载货汽车在国内外的现状和发展前景做了相当的概述，而后对前桥进行了详细的计算，主要计算了前桥，转向节，主销，主销上下轴承，转向节推力或止推垫片等在制动和侧滑两种工况下的工作应力。本文上述的设计工作均由CAD绘图完成。 关键字 汽车，前桥，转向节，主销 Abstract With the development of market economy, light freight cars with its flexible, economic fuel efficient, cost-effective, multi-function characteristics, gradually become citywide goods transportation or short-distance transport of goods transport, the main city logistics system is the main models. Auto manufacturing enterprise in order to capture market, must develop design the modelling beautiful, decorate reasonable, advanced structure, high move the vans through sex.. Axle through suspension and frame connected, the ends of the wheels, its function is installed between each frame and wheel transmission force and its moment in the direction . Front axles main function is bearing, walking, steering and brakes, through the research and design of front axle of vans, can the development to have the important meaning, can let vans more smoothly, and walk more flexible, thus make vans providing better service to the society. Firstly,the small truck design feature and devdlopment in the world to do the releant overview and then move before the bridge on a detailed design calculations,mainly calculate the work strss in the brake and sideslip two conditions of the front axle,steering knuckle ,kingpin,upper and lower bearing,Steering knuckle thrust bearing or thust washer.The design of this work completed by the CADdrawing. Key words: car,front axle,Knuckle,Kingin 目录 第一章 绪 论 1 1.1 轻型载货汽