毕业设计（论文）-松花江微型汽车驱动桥设计.doc

格
摘要
本次设计的题目是松花江微型汽车驱动桥。驱动桥一般由主减速器、差速器、半轴及桥壳四部分组成,驱动桥的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;此外,还要承受作用于路面和车架或车厢之间的铅垂力、纵向力和横向力。
本设计首先论述了驱动桥的总体结构,在分析驱动桥各部分结构型式、发展过程及其以往形式的优缺点的基础上,确定了总体设计方案:采用整体式驱动桥,主减速器的减速型式采用单级减速器,主减速器齿轮采用螺旋锥齿轮,差速器采用普通对称式圆锥行星齿轮差速器,半轴采用半浮式型式,桥壳采用钢板冲压焊接式整体式桥壳。在本次设计中,主要完成了单级减速器、圆锥行星齿轮差速器、半浮式半轴的设计和桥壳的校核及CAD绘图等工作。
关键词: 驱动桥;主减速器;设计;差速器
全套图纸,加153893706
Abstract
The object of the design is the design for driving axle of mini-car of SongHuajiang driving axle is consisted of final drive, differential mechanism, half shaft and axle housing. The basic function of driving axle is to increase the torque transmitted by drive shaft or directly transmitted by gearbox, then distributes it to left and right wheel, and make these two wheels have the differential function which is required in automobile driving kinematics; besides, the driving axle must also stand the lead hangs down strength, the longitudinal force and the transverse force acted on the road surface, the frame or partment lead.
The configuration of the driving axle is introduced in the thesis at first. On the basis of the analysis of the structure , the developing process and advantages and disadvantages of the former type of driving axle, single reduction gear for main decelerator’s deceleration form, spiral bevel gear for main decelerator’s gear, half floating for axle and stamp-welded steel sheet of integral axle housing for axle housing. In the design, we plished the design for single reduction gear, tapered ary gear differential mechanism, half floating axle, the checking of axle housing and CAD drawing and so on.
Key words: Driving Axle; Final Drive; Design; Differential
目录
摘要 I
Abstract II
第1章绪论 1
驱动桥的结构和种类 1
汽车车桥的种类 1
驱动桥的种类 1
驱动桥结构组成 2
设计内容 8
第2章设计方案的确定 9
设计主要参数 9
主减速器结构方案的确定 9
主减速器齿轮的类型的选择 9
主减速器主动锥齿轮的支承形式及安装方式的选择 9
从动锥齿轮的支承方式和安装方式的选择 10
主减速器的轴承预紧及齿轮啮合调整 10
主减速器的减速形式 10
差速器结构方案