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轻型载货汽车驱动桥设计

作 者 姓 名：指 导 教 师：单 位 名 称：专 业 名 称：

机械工程与自动化学院车辆工程

Drive axle design

毕业设计（论文）任务书 毕业设计（论文）题目： 轻型载货汽车驱动桥设计 基本内容： (1) 满足如下设计参数要求：总质量：6000kg；装载质量：3000kg；轴距：4000mm；后轮距1500mm；钢板弹簧座中心距离：865mm；满载时前轴荷1900kg；满载时后轴荷4100kg；最大功率70kw/3200r/min；最大转矩200Nm/2200r/min； (2) 进行总体方案分析，总体参数设计和计算，完成总体设计全部内容； (3) 进行零部件设计好校核计算，标准件选择和校核等； (4) 完成总体和主要零部件二维设计； (5) 撰写毕业设计说明书 (6) 翻译一篇与汽车相关的外文文献 毕业设计（论文）专题部分： 题目： 基本内容： 学生接受毕业设计（论文）题目日期 第 周 指导教师签字： 年 月 日

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摘 要

轻型汽车在商用汽车生产中占有很大的比重，而且驱动桥在整车中十分重要。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，而对于载货汽车显得尤为重要。为满足目前当前载货汽车的快速、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。设计出结构简单、工作可靠、造价低廉的驱动桥，能大大降低整车生产的总成本，推动汽车经济的发展，并且通过对汽车驱动桥的学习和设计实践，可以更好的学习并掌握现代汽车设计与机械设计的全面知识和技能，所以本题设计一款结构优良的轻型货车驱动桥具有一定的实际意义。

本文首先确定主要部件的结构型式和主要设计参数，在分析驱动桥各部分结构形式、发展过程及其以往形式的优缺点的基础上，确定了总体设计方案，采用传统设计方法对驱动桥各部件主减速器、差速器、半轴、桥壳进行设计计算并完成校核。最后运用CAXA完成装配图和主要零件图的绘制。

关键词：轻型货车；驱动桥；主减速器；差速器；半轴；桥壳

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东北大学毕业设计 Abstract

Abstract

Pickup trucks take a large proportion of commercial vehicles production, and the drive axle is one of the most important structure. Drive axle is the one of automobile four important assemblies, Its performance directly influence on the entire automobile, especially for the truck .Because using the big power engine with the big driving torque satisfied the need of high speed, heavy-loaded, high efficiency, high benefit today` truck, must exploiting the high driven efficiency single reduction final drive axle is becoming the trucks‘ developing tendency. Design a simple, reliable, low cost of the drive axle, can greatly reduce the total cost of vehicle production, and promote the economic development of automobile and automotive drive axle of the study and design practice, can better learn and to master modern automotive design and mechanical design of a comprehensive knowledge and skills, so the title of the fine structure of the design of a pickup vehicle drive axle has a certain practical significance.

In this paper, first of all determine the structure of major components and the main design parameters, the analysis of the various parts of the structure of the bridge drive type, the form of the development process and its advantages and disadvantages of the past, determined on the basis of the design program, using the traditional design method of various parts of the drive axle Main reducer, differential, axle, axle housing was designed to calculate and complete the check. Finally complete the final assembly drawing by using CAXA and mapping the main components.

Keywords: Pickup truck; Drive axle; final drive; Differential; Axle; Drive Axle housing

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