重型载货汽车贯通式驱动桥设计【全套CAD图纸+毕业论文】【答辩优秀】

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目录

摘要I

AbstractII

第1章  绪论1

第2章  驱动桥总成的结构型式3

2.1驱动桥总体方案论证3

2.1.1 非断开式驱动桥3

2.1.2 断开式驱动桥4

第3章  主减速器6

3.1  主减速器结构形式6

3.1.1  主减速器的齿轮类型6

3.1.2  主减速器主，从动锥齿轮的支承形式6

3.2  主减速器的基本参数选择与设计计算7

3.2.1  主减速比io的确定7

3.2.2  主减速器计算载荷的确定8

3.2.3 主减速器基本参数的选择9

3.2.4  主减速器锥齿轮的几何尺寸计算10

3.2.5  主减速器锥齿轮的强度计算12

3.2.6  主减速器齿轮的材料及热处理14

3.2.7 主减速器轴承的选择14

第4章  差速器18

4.1  对称式圆锥行星齿轮差速器的设计18

4.1.1  差速器齿轮的基本参数的选择18

4.1.2差速器齿轮的几何计算19

4.1.3  差速器齿轮的强度计算20

第5章  驱动半轴22

5.1  全浮式半轴的杆部直径的初选22

5.2  全浮式半轴的强度计算22

5.3  半轴花键的强度计算23

第6章  驱动桥桥壳25

6.1 桥壳的结构型式25

6.1.1 整体式桥壳25

结论27

致谢28

参考文献29

附录132

附录237

摘要

驱动桥作为汽车四大总成之一，它的性能的好坏直接影响整车性能，而对于载重汽车显得尤为重要。当采用大功率发动机输出大的转矩以满足目前载重汽车的快速、重载的高效率、高效益的需要时，必须要搭配一个高效、可靠的驱动桥。所以采用传动效率高的单级减速驱动桥已成为未来重载汽车的发展方向。

本文参照传统驱动桥的设计方法进行了载重汽车驱动桥的设计。本文首先确定主要部件的结构型式和主要设计参数；然后参考类似驱动桥的结构，确定出总体设计方案；最后对主，从动锥齿轮，差速器圆锥行星齿轮，半轴齿轮，全浮式半轴和整体式桥壳的强度进行校核以及对支承轴承进行了寿命校核。本文采用传统的双曲面锥齿轮作为载重汽车的主减速器。

关键字：载重汽车；桥间差速器；贯通桥；全浮式半轴

                         ABSTRACT

      As a vehicle drive axle assembly of one of the four, and its performance will have a direct impact on vehicle performance, and it is particularly important for trucks. When using high-power engine torque output of large trucks to meet the current fast, heavy-duty high-efficiency, cost-effective and necessary, must be with an efficient, reliable bridge driver. Therefore, efficient use of transmission of a single-stage driver slow down the bridge has become a heavy-duty motor vehicles in the future development direction.

In this paper, in the light of the traditional design of the drive axle of the truck driver for the design of the bridge. This article first identified the major components of the structure and main design parameters; then a similar reference to the drive axle of the structure to determine the overall design of the program; on the final owner, Gear Driven cone, cone differential planetary gear, axle gear, the all-floating Half-bridge and the overall strength of the shell to carry out verification as well as support for the life of bearing checking. This article is not a traditional double-bevel gear surface as the main reducer truck instead of using the spiral bevel gear, as a hope that this will continue to study this issue.

Keyword: truck driver bridge double-stage bridge slowdown spiral bevel gear