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1、本科学生毕业设计JX1021TS3 轻型货车驱动桥设计院系名称： 汽车与交通工程学院 专业班级： 车辆工程 学生姓名： 指导教师： 职 称： 讲 师 The Graduation Design for Bachelors DegreeDesign of Pickup Truck Driving Axle Candidate：Specialty：VehicleEngineering Class:B07-1Supervisor：Lecturer. Heilongjiang Institute of Technology I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
2、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、高效益需要的同时时，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的轻型货车驱动桥具有一定的实际意义。本设计首先论述了驱动桥的总体结构，在分析驱动桥各部分结构型式、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：采用整体式驱动桥，主减速器的减速型式采用单级减速器，主减速器齿轮采用螺旋锥齿轮，差速器采用圆锥行星齿轮差速器，半轴采用全浮式型式，桥壳采用铸造整体式桥壳。在本次设计中，主要完成了单级减速器、圆
3、锥行星齿轮差速器、全浮式半轴的设计和桥壳的校核及材料选取等工作。最后运用 AUTOCAD 完成装配图和主要零件图的绘制。全套图纸，加关键词：轻型货车；驱动桥；单级主减速器；差速器；半轴；桥壳 IIABSTRACTPickup 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,
4、 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 reductio
5、n 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, so the title of the fine structure of the design of a pickup vehicle drive axle has a certain practical significance.The conf
6、iguration of the Driving Axle is introduced in the thesis at first. On the basis of the analysis of the structure and the developing process of Driving Axle, the design adopted the Integral Driving Axle, Single Reduction Gear for Main Decelerators deceleration form, Spiral Bevel Gear for Main Decele
7、rators gear, Full Floating for Axle and Casting Integral Axle Housing for Axle Housing. In the design, we accomplished the design for Double Reduction Gear, tapered Planetary Gear Differential Mechanism, Full Floating Axle, the checking of Axle Housing and the election of the material and so on. Fin
8、ally complete the final assembly drawing by using AUTOCAD and mapping the main components.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 p
9、rocess 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 a
10、ssembly drawing by using AUTOCAD and mapping the main components.Keywords: Pickup truck; Drive axle; Single reduction final drive; Differential; Axle; Drive Axle housing i目 录摘要 .IAbstract.II第 1 章 绪论 .11.1 选题的背景目的及 意义 .11.2 国内外驱动桥研究状况 .11.3 设计主要内容 .3第 2 章 驱动桥的总体方案确定 .42.1 驱动桥的 种类结构和设计要求 .42.1.1 汽车车桥的种类 .42.1.2 驱动桥的种类 .42.1.3 驱动桥结构组成 .42.1.4 驱动桥设计要求 .52.1.5 设计车型主要参数 .52.2 主减速器结构方案的确定 .62.2.1 主减速比的计算 .62.2.2 主减速器的齿轮类型 .72.2.3 主减速器的减速形式 .82.2.4 主减速器主从动锥齿轮的支承形式及安装方法 .92.3 差速器结构方案的确定 .
