越野车驱动桥毕业设计.doc

摘 要 随着汽车工业的发展和汽车技术的提高，驱动桥的设计和制造工艺都在日益完善。驱动桥和其他汽车总成一样，除了广泛采用新技术外，在结构设计中日益朝着“零件标准化、部件通用化、产品系列化”的方向发展及生产组织专业化目标前进。应采用能以几种典型的零部件，以不同方案组合的设计方法和生产方式达到驱动桥产品的系列化或变形的目的，或力求做到将某一类型的驱动桥以更多或增减不多的零件，用到不同的性能、不同吨位、不同用途并由单桥驱动到多桥驱动的许多变形汽车上。本说明书中，根据给定的参数，首先对主减速器进行设计。主要是对主减速器的结构，以及几何尺寸进行了设计。主减速器的形式主要有单级主减速器和双级主减速器。而主减速器的齿轮形式主要有螺旋锥齿轮、双曲面齿轮、圆柱齿轮和蜗轮蜗杆等形式。本次设计采用的是主减速器。其次，对差速器的形式进行选择，差速器的形式主要分为普通对称式圆锥行星齿轮差速器和防滑差速器两种。本次设计采用普通对称式圆锥行星齿轮差速器。，对半轴的、支承形式，以及桥壳的形式和特点进行了分析设计。本次设计采用全浮式半轴支承和整体式驱动桥壳。驱动桥主减速器差速器半轴ABSTRACT With the development of the automotive industry and vehicle technology to improve the design and manufacturing process of the drive axle are increasingly improved. Drive Axle and other automotive assembly, in addition to the widespread adoption of new technology in the structural design, the direction of development and production organizations increasingly toward standardization of parts, components universal product series professional goal. Parts should be used in several typical drive axle product series or deformation of the purpose of portfolio design and production methods, or that we could achieve a certain type of drive axle to more or deletion few parts, used different performance, many of the different tonnage, different purposes by a single bridge driver to multi-bridge-driven deformation of the car. This manual, according to the given parameters, the first main gear box design. The structure of the main gear box, and the geometric dimensions of the design. The main gear box in the form of single-stage main gear box and two-stage main gear box. Final drive gear mainly in the form of spiral bevel gears, hypoid gears, cylindrical gears, worm and other forms. This design is integral single-stage main gear box, gear forms of hypoid gears. Secondly, in the form of differential selection, differential forms are divided into ordinary symmetric cone planetary gear differential and limited slip differential two. The design uses a common symmetric cone planetary gear differential