中型载货汽车驱动桥设计毕业设计说明书.docx

沈阳建筑大学城市建设学院毕业设计说明书毕 业 设 计 题 目 中型载货汽车驱动桥设计系专业班级交通与机械工程系交通运输12-1班 学 生 姓 名 张执晶 性别男指 导 教 师 王文钊 职称工程师 2016年5月27日摘要本次毕业设计的题目是中型载货货车驱动桥设计。驱动桥是汽车传动系统的重要组成部件，位于传动系的末端，其功用是增大由传动轴或变速器传来的转矩，将其传给驱动轮并使其具有差速功能。所以中型载货汽车驱动桥设计有着重要的实际意义。在本次设计中，根据当今驱动桥的发展情况确定了驱动桥各部件的设计方案。其中根据本次设计的车型为中型载货货车，故主减速器的形式采用单级主减速器，而差速器则采用目前被广泛应用的对称式锥齿轮差速器，其半轴为全浮式支撑。在本次设计中完成了对主减速器、差速器、半轴、桥壳及轴承的设计计算及校核并通过以上计算满足了驱动桥的各项功能。此外本设计还应用了较为先进的设计软件，如用AUTOCAD软件绘图。本次设计除了要保持驱动桥有足够的强度、刚度和足够的使用寿命，以及足够的其他性能。并且还要做到零件的通用化和标准化。关键词：驱动桥；主减速器；差速器；半轴；桥壳AbstractThe graduation project is the subject of a medium goods vehicle driver in the design of the bridge. Bridge drive vehicle drive system is an important component parts，its function is increasing drive shaft or transmission came from the torque，and its transmission to a driving wheel differential function. So the design of the medium truck driving axle has important practical significance.In the design of the bridge under the current drive the development of the driver identified the components of the bridge design. According to the design of this model for the medium-sized cars，so the main reducer in the form of a single stage main reducer，and the current differential is being widely used symmetric bevel gear differential; its axle for the whole floating - Support. In the completion of the design of the main reducer，differential and axle，bearings and the bridge shell calculation and design verification. Through the above calculation and the drive to meet the various functions of the bridge. In addition the design of a more advanced design tools，such as AUTOCAD software graphics.The design in addition to keep the drive bridge has sufficient strength，stiffness and sufficient service life，as well as enough other performance. And to do the part of the general and standardized.Key words：Drive Bridge；the main reducer；differential and axle；Shell Bridge目录第一章 绪论11.1驱动桥简介11.2驱动桥设计的基本要求11.3中型载货汽车驱动桥的国内外研究现状21.3.1国内研究现状21.3.2国外研究现状2第二章