汽车前驱动桥的结构设计

本科学生毕业设计

汽车前驱动桥的结构设计

系部名称：汽车与交通工程学院

专业班级：车辆工程 XX班

学生姓名：XXX

指导教师：XXX

职称：实验师

黑龙江工程学院

二○一三年六月

The Graduation Design for Bachelor's Degree

The Structural Design of The Car Front Drive Axle

Candidate：XXX

Specialty：Vehicle Engineering

Class：XX

Supervisor：Experimentalist XX

Heilongjiang Institute of Technology

2013-06·Harbin

摘要

随着现代车型的发展，普通汽车已经逐渐走进每个人的生活中。车桥设计是汽车设计中重要的环节之一，国产驱动桥在国内市场占据了绝大部分份额，但仍有一定数量的车桥依赖进口，国产车桥与国际先进水平仍有一定差距。

本次设计首先通过查阅近几年来有关国内外前驱动桥设计的文献资料，综合所学专业知识，了解并掌握了汽车前驱动桥结构及工作原理，根据所给的汽车参数制定了相应的设计方案。

然后通过查阅相关标准、手册资料，确定了驱动桥的主要零部件的主要设计参数，完成转向器、万向节、主减速器、差速器、半轴及桥壳的结构和尺寸设计计算，并进行相应校核，再根据所计算选取的参数画出了转向驱动桥的整体装配图、差速器装配图以及部分零件图。

关键词：前驱动；转向驱动桥；主减速器；差速器；半轴；桥壳

ABSTRACT

As the development of the auto industry, car has gradually become part of everyone's life. Axle design is one of the important parts of automotive design, domestic drive axle in the domestic market accounted for the lion's share, but there is still a certain number of axles dependent on imports, there is still a certain gap between domestic axle and the international advanced level.

Firstly, this design is lookup of the domestic and international front drive axle design documents in recent years, integrated the knowledge of our expertise we had knew and mastered the car’s front drive axle structure and working principle, formulated according to the vehicle parameters to the corresponding design programs.

Then refered to the relevant standard, manual data to determine the main design parameters of the main components of the drive axle, completed the structure and size of the steering, universal joints, main gear box, differential, axle and axle housing, and check, according to the calculated parameters selected to draw the overall steering drive axle assembly drawings, the differential assembly drawings as well as some parts diagram.

Key words: Front drive；Steering drive axle；Main reducer；Differential；Axle；Axle housing

目录

摘要 (Ⅰ)

ABSTRACT (Ⅱ)

第1章绪论 (1)

1.1 前言 (1)

1.1.1 概论 (1)

1.1.2 预期的成果 (1)

1.2 国内外发展状况及现状的介绍 (1)

1.3 本设计的目的与意义 (3)

1.4 本设计的主要内容 (3)

第2章驱动桥的设计 (5)

2.1 驱动桥参数 (5)

2.2 驱动桥的结构方案 (5)

2.3本章小结 (7)

第三章主减速器设计 (8)

3.1 主减速器的结构型式 (8)

3.1.1主减速器的减速形式 (8)

3.1.2主减速器的齿轮类型 (8)

3.1.3主减速器主、从动锥齿轮的支承方案 (9)

3.2 主减速器基本参数选择与设计计算 (9)

i的确定 (9)

3.2.1主减速比

3.2.2主减速器齿轮计算载荷的确定 (9)

3.2.3主减速器齿轮基本参数的选择 (12)

3.3主减速器螺旋锥齿轮的强度计算 (17)

3.3.1 单位齿长上的圆周力 (17)

3.3.2 轮齿的弯曲强度计算 (18)

3.3.3 轮齿的接触强度计算 (19)