速腾轿车前驱动桥毕业设计

摘要

驱动桥的零件很多,结构复杂. 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。本文主要是关于速腾1.8T驱动桥设计。

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。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，详细研究了速腾1.8T轿车的驱动桥的设计方法，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速腾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

Driving axle parts, structure is complex. Drive bridge as the four major automobile assembly, its performance has a direct impact on vehicle performance. This article is about the 1.8T Teng-speed driving axle design.

The basic function is to drive axle drive shaft or transmission to increase the torque and properly reduce speed assigned to the left and right drive wheels, drive axle is also under the second road and the frame or body between the vertical force, longitudinal force and lateral force, and the braking force and the reaction torque. Drive axle is composed of main reducer, differential, half shaft, universal joint, drive axle bridge shell. Drive axle is in the automobile power transmission assembly of. Driving axle design is reasonable or not directly related to automobile use performance is good or bad, drive axle is an important vehicle components, it suffered from a road surface and suspension of all forces and moments, is in the automobile the worst working conditions of one of the assembly, if designed properly it will cause serious consequences.

Based on the driving axle of traditional design method for the foundation, a detailed study of the 1.8T Teng-speed car driving axle design method, put forward a feasible design ideas. According to this train of thought, design and calculate data and draw the steering driving axle parts diagram. At the same time, I also find the existing 1.8T Teng-speed car driving axle structure principle, from the vehicles on the drive axle of the whole structure to deepen understanding, combined with the atest information about driving bridge and vehicle design book knowledge to design, sketch, and then using AUTOCAD software to provide the general assembly drawing, design work efficiency.

Key words: automobile driving axle main reducer differential half axle

目录

摘要…………………………………………………………………………...I Abstract.................................................................................................................II

第1章绪论 (1)

1.1概述 (1)

1.2驱动桥设计与分析的理论研究现状 (2)

1.3设计驱动桥时应当满足如下基本要求 (2)

第2章驱动桥结构方案的选定 (3)

2.1结构方案分析 (3)

第3章主减速器设计 (3)

3.1主减速器的结构形式 (4)

3.2主减速器的类型 (4)

3.3主减速器主、从动斜齿圆柱齿轮的支承形式 (6)

3.4主减速器的基本参数选择与计算 (7)

3.4.1主减速比的确定 (7)

3.4.2主减速器齿轮计算载荷的确定 (9)

3.5主减速器齿轮基本参数的选择 (12)

3.5.1主、从动齿轮齿数的选择 (12)

3.5.2斜齿轮设计计算 (12)

3.5.3主减速器齿轮参数表 (17)

第4章差速器的设计 (18)

4.1差速器结构形式选择 (18)

4.2普通锥齿轮式差速器齿轮设计 (19)

4.2.1差速器齿轮的基本参数的选择 (19)

4.2.2差速器齿轮的几何尺寸计算与强度计算 (21)

4.2.3汽车行星齿轮和半轴齿轮的参数表 (25)

第5章驱动车轮的传动装置设计 (26)

5.1半轴的型式 (26)

5.2半轴的设计计算 (26)

5.3半轴的强度较核 (27)

5.3.1 三种可能工况 (27)

5.3.2 半浮式半轴计算载荷的确定 (28)

5.4半轴的结构设计及材料与热处理 (30)