摘要因为汽车传动系的总任务是传递发动机的动力。为了满足汽车行驶的需要，有了变速器还不能完全解决发动机特性与汽车正常行驶之间的矛盾。首先因为很大一部分的发动机在汽车上是纵向安置的，为使其转矩能传给左、右驱动车轮，必须由驱动桥的主减速器来改变转矩的传递方向，同时还得由驱动桥的差速器来解决左、右驱动车轮间的转矩分配问题和差速要求。其次，需将经过变速器、传动轴传来的动力，通过驱动桥的主减速器，进行进一步增大转矩、降低转速的变化。因此，要想使汽车驱动桥的设计合理，首先必须选好传动系的总传动比，并恰当地将它分配给驱动桥。46847
本课题主要研究的是低速载货汽车驱动桥的设计，通过调研收集分析相关的资料，在了解其特点的基础上根据其特点进行驱动桥结构方案设计并根据其特点确定其主减速器的结构形式；再利用MATLAB软件完成主减速器齿轮强度计算以及齿轮轴承的载荷计算，以及利用CAD画出驱动桥的零件图和总装图。
毕业论文关键词：驱动桥 主减速器 差速器
Abstract The automobile transmission task is to transfer engine power. In order to meet the needs of motor cars, with the transmission also can not completely resolve the contradiction between the engine characteristics and vehicle normal driving. First, because a large part of the engine in the car on a vertical placement, so that torque can be passed to the left and right drive wheels, torque transfer direction must be changed by the drive axle of the main gear box, and at the same time have driven by the differential of the bridge to solve the left and right drive wheel torque distribution between the problem and differential requirements. Secondly, the need to power came after the transmission, drive shaft, main gear box of the drive axle further increase torque and reduce speed changes. Therefore, in order to make the design of the drive axle is reasonable, you must first choose the total transmission ratio of the transmission system and appropriately assign it to the drive axle.
The main subject of research is the design of the drive axle of the truck speed through the survey to collect and analyze relevant information, according to their characteristics in the understanding of their characteristics on the basis of the drive axle structure of programs designed according to their characteristics and to determine the structure of the main gear box form; using MATLAB software to complete the main gear box gear strength calculation and gear bearing load calculation, and using CAD to draw the part drawings and assembly diagrams of the drive axle.
Keywords: drive axle main reducer differential
目录
第一章 绪论 1
1.概述 1
1.1.本研究课题的学术背景及其理论与实际意义 1
1.2.本课题主要研究内容 1
第二章 驱动桥的设计 2
1.主减速器 2
1.1. 驱动桥的结构型式 2
1.2.主减速器的设计 5
1.2.1. 主减速器的结构型式 5
1.2.2 .主减速器主动锥齿轮的支承型式及安装方法 7
1.2.3. 主减速器从动锥齿轮的支承型式及安装方法 8
1.2.4. 主减速器的减速型式 低速载货汽车驱动桥的设计+CAD图纸+matlab程序:http://www.751com.cn/jixie/lunwen_48669.html