本文通过对以往的驱动桥设计资料进行观阅和反思后，结合自己的杰德轿车的相关参数进行了比较合理的参数和结构设计，我在查阅资料的过程中反复思考杰德轿车的前桥的运作机理，并且平时对街头的车样进行查看，在学习实车的驱动桥布置以及架构的同时，思考我单独进行驱动桥的设计时。是否能够遵循设计的要求流程，是否能够完成它该有的功能，并在完成功能的同时考虑到零件的三化。这其中的关键便在于主减速器以及差速器的设计与搭配之上，作为驱动桥的灵魂部件，这两个结构的参数决定了整个驱动桥的尺寸和位置。因而在这两个结构的参数计算过程中，我严格查阅相关资料和参考导师的意见，进行多次修改来完成它的结构设计，并对它进行参数化建模。并且在这两个结构的基础上对其他组合部件进行设计以及建模，最后得到一个完整的驱动桥的模型，后续的CAD图也严格依照实际的三维建模而来。 关键词：汽车承载驱动桥主减速器差速器 Abstract The drive axle is o
ne of the four major assemblies of the car. It has a lot of parts a
nd a complicated structure, a
nd its performa
nce will directly affect the performa
nce of the whole vehicle. I
n the car, the drive axle
not o
nly has to bear the load o
n the full load spri
ng of the car, but also bears the plumb force a
nd lo
ngitudi
nal force ge
nerated by the wheel through the wheel, the frame or the load-beari
ng body through the suspe
nsio
n. Moreover, the co
nve
nie
nce of the tra
nsaxle from the co
nve
ntio
nal axle is that its locatio
n is directly related to the power output, so it
needs to tra
nsmit torque for it, which is the maximum torque i
n the drive trai
n. After reviewi
ng a
nd reflecti
ng o
n the past drive axle desig
n data, this paper combi
nes the parameters of the Jade seda
n with reaso
nable parameters a
nd structural desig
n. At the same time, I also fou
nd the existi
ng Jeddell's tra
nsaxle. The pri
nciple of structure, a
nd through the street car to view a
nd thi
nk, co
nsider how I ca
n complete a reaso
nable a
nd dy
namic, eco
nomical a
nd other ca
n basically meet the requireme
nts of the tra
nsaxle desig
n. The key to this is the desig
n a
nd matchi
ng of the fi
nal drive a
nd the differe
ntial as the soul part of the drive axle. The parameters of these two structures determi
ne the size a
nd positio
n of the e
ntire drive axle. Therefore, i
n the parameter calculatio
n process of these two structures, I strictly co
nsult the releva
nt materials a
nd the opi
nio
ns of the refere
nce i
nstructors, a
nd carry out several modificatio
ns to complete its structural desig
n a
nd parametric modeli
ng. Key words:automobile drivi
ng axle mai
n reducer differe
ntial half axle 目录 第1章绪论1 1.1概述1 1.2驱动桥研究现状1 1.3驱动桥设计要求1 1.4驱动桥计算准备2 第2章主减速器的设计4 2.1驱动桥结构分析4 2.2主减速器的结构和功用4 2.3主减速器的类型5 2.4主减速器齿轮支承形式5 2.5主减速器参数设计5 2.5.1主减速比计算5 2.5.2主减速器齿轮载荷计算6 2.6主减速器齿轮8 2.6.1主、从动齿轮简介8 2.6.2斜齿轮设计计算9 2.6.3主减速器齿轮参数表12 2.7主减速器设计小结13 第3章差速器设计14 3.1差速器结构形式选择14 3.2差速器齿轮设计14 3.2.1差速器齿轮参数15 3.2.2差速器齿轮校核17 3.2.3汽车差速器齿轮的参数表20 3.3轴承选择与校核20 3.4差速器设计小结23 第4章驱动车轮的传动装置设计24 4.1半轴的型式24 4.2半轴设计24 4.3半轴校核25 4.3.1校核工况25 4.3.2半浮式半轴计算载荷的确定： 25 4.4半轴材料29 4.5半轴设计小结29 第5章万向节及桥壳设计31 5.1万向节结构选择31 5.2万向节的材料及热处理31 5.3桥壳的简介32 5.4驱动桥壳的设计32 5.5万向节与桥壳设计小结32 结论34 致谢36 参考文献37