1、 1 摘 要 本说明书阐述的内容是关于轻型客车驱动桥总成设计和计算过程。 驱动桥是汽车行驶系的重要组成部分，其基本功用是增大由传动轴或直接由 变速器传来的转矩，将转矩分配给左、右车轮，并使左、右驱动车轮具有汽车行 驶运动学所要求的差速功能。所以其设计质量直接关系到整车性能的好坏。所以 在设计过程中，设计者本着严谨和认真的态度进行设计。 在绪论部分，对驱动桥各总成及其选用形式作了简明扼要的说明。 在方案论证部分，对驱动桥及其总成结构形式的选择作了具体的说明。本设 计选用了单级减速器，采用的是双曲面齿轮啮合传动，尽量的简化结构，缩减尺 寸，有效的利用空间，充分减少材料浪费，减轻整体质量。由于是轻型
2、货车，主 要形式在路面较好的条件下，因此没有使用差速锁。 在设计计算与强度校核部分，对主减速器主从动齿轮、差速器齿、轮车轮传 动装置和花键等重要部件的参数作了选择。同时也对以上的几个部件进行了必要 的校核计算。 在工艺部分，对本设计的制造和装配等工艺，作了个简单的分析。 结束语是作者对本次毕业设计的一些看法和心得体会，并对悉心帮助和指导 过我的指导老师和同学表示衷心的感谢和深深的敬意。 关键词 驱动桥 轻型客车 差速器 主减速器 ABSTRACT The main content of this bachelor paper is the process of the design and c
3、alculation of the drive axle for mini-bus. As one of main component of vehicle drive line, its basic effect is to enlarge the torques that comes from the drive shafts or directly from the transmission, and distributes the torques to side wheels, and make the side wheels have the differential drive a
4、xle has an important effect on vehicle performance, therefore, we should keep a serious and earnest attitude during the course of design. In the exordium part, it has short and sweet introduced the assembly and pattern selection for drive axle. In the part of selection and argumentation ,a concrete
5、description of structure form 2 of drive axle and its assemblies are made. In this design, it has selected the single-grade main-reducer drive axle, it is two hypoid gears, it can simplify the structure, reduce the size, make effect use of the space and materials, reduce the whole quality. As it is
6、for mini-bus and often use on good rods, so it dosent use differential block. In the part of designing conclusion and strength check, parameter of the essential units such as the speed reduction,differential,wheel drive mechanism and so on are selected. At the same time, the author makes the strength check to the main speed reduction,differential wheels drive mechanism. In the technology of drive ring gear shaft is analyzed, afterwards its dimensional chain is calculated. In the conclusio
