迈腾1.8T轿车转向驱动桥设计

摘要

驱动桥的基本功用是将传动轴或变速器传来的转矩增大并适当降低转速后分配给左、右驱动车轮，其次驱动桥还要承受路面和车架或车身之间的垂直力、纵向力和横向力，以及制动力和反作用力矩等。转向驱动桥在驱动桥的基础上增添了转向的功能，使汽车按照驾驶员的要求行驶。转向驱动桥组成包括主减速器、差速器、半轴、万向节、驱动桥桥壳等。驱动桥是汽车传动系中主要总成之一。驱动桥的设计是否合理直接关系到汽车使用性能的好坏，驱动桥是汽车中的重要部件，它承受着来自路面和悬架之间的一切力和力矩，是汽车中工作条件最恶劣的总成之一，如果设计不当会造成严重的后果。

本文以驱动桥的传统设计方法为基础，详细研究了迈腾1.8T轿车的转向驱动桥的设计方法，提出了比较可行的设计思路。根据这一思路设计计算出数据并画出转向驱动桥的各零件图。同时我也查找了现有的迈腾1.8T轿车的驱动桥的结构原理，从样车对驱动桥的整体构造加深了解，结合最新有关驱动桥的信息和汽车设计书本上的知识来设计计算、绘制草图，然后运用AUTOCAD软件绘制总装配图，从而提了设计工作效率。

关键词：汽车驱动桥主减速器差速器半轴

Abstract

The basic function of the Drive Axle is increasing torque which is from drive shaft or transmission and reducing the speed ,then drive it to the left and right driving wheel; secondly drive axle still withstand the vertical force ,longitudinal force and transverse force between the road and bridge or the body frame ,and braking force , reaction torque ,etc. Steering Drive Axle adds the function of shift under the basic of the Drive Axle, so that the car can run according to the driver. Steering Drive Axle include the main drive component, Differential, half axel, universal, Drive Axle Housing, etc. Driving Axle is one of the main assemble of the automotive power train. Whether the design of the Driving Axle is reasonable or not, affect the use of the cars. Driving Axle is the important part of the cars, it withstands the all force and torque between the road and the suspension and its working condition is the worst in cars. If the design is not right it will cause serious consequences.

On the base of the Driving Axle traditional design methods, study the Steering Drive Axle design methods of the Magotan 1.8T carefully and give the practical design methods in this paper. According to this idea and the design data I draw out the parts diagram of the Steering Drive Axle. At the same time I also find the existing Magotan 1.8T sedan Driving Axle structure principle, and better understand the overall structure from the sample car. Combined with the latest information of the Driving Axle and the book of Vehicle Design to design and calculation, draw sketches, and them draw the general assembly drawing with auto CAD software, which raised the rate of the design.

Keywords: Automotive Driving Axle The Main Drive Component Differential Half Axel

目录

摘要 0

Abstract (1)

1 绪论 (1)

2 驱动桥结构方案的选定 (1)

3 主减速器设计 (3)

3.1 主减速器的结构形式 (3)

3.2 主减速器的类型 (3)

3.3 主减速器主、从动圆柱齿轮的支承形式 (4)

3.4 主减速器的基本参数选择与计算 (5)

4. 差速器的设计 (14)

4.1 差速器结构形式选择 (14)

4.2 普通锥齿轮式差速器齿轮设计 (14)

5 驱动车轮的传动装置设计 (20)

5.1 半轴的型式 (20)

5.2 半轴的设计计算 (20)

5.3 半轴的强度较核 (21)

5.4 半轴的结构设计及材料与热处理 (23)

6 万向节设计 (24)

6.1 万向节结构选择 (24)

6.2 万向节的材料及热处理 (25)

7 驱动桥壳设计 (25)

8 转向节设计 (26)

9 结论与展望 (27)

参考文献 (28)

附录 (29)

致谢 (33)