一汽佳宝AV6微型车驱动桥设计 毕业设计说明书.docVIP

` 本科生毕业设计（论文） PAGE PAGE IV 摘 要 随着我国汽车工业的高速发展,作为汽车主要零部件之一的车桥系统也得到相应的发展。 驱动桥是汽车传动系中最后一个总成，它的基本功用是将传动轴或变速器传来的转矩增大并适当减低转速后分配给左、右驱动轮，另外还承受作用于路面和车架或车身之间的垂直力，纵向力和横向力。通过提高驱动桥的设计质量和设计水平，以保证汽车良好的动力性、安全性和通过性。 此次一汽佳宝AV6驱动桥设计主要包括：主减速器、差速器、车轮传动装置和驱动桥壳进行设计。主减速器采用单级主减速器；差速器设计采用普通对称圆锥行星差速器；车轮传动装置采用全浮式半轴；驱动桥壳采用整体型式。并采用了Matlab对主减速器双曲面齿轮副的参数计算，以及对驱动桥的相关零件的校核。 本文驱动桥设计中，利用了CAD绘图软件表达整体装配关系和部分零件图，以精确的表达其设计目的意义。 关键词：驱动桥；主减速器；差速器；半轴；桥壳 Abstract With the rapid development of Chinas automobile industry, as car parts, one of the main train-bridge system has been corresponding development. The last assemblage of vehicle power train is rear axle. The basic function of driving axle is to increase the torque transported from the transmission shaft or transmission and decrease the speed ,then distribute it to the right、left driving wheel, another function is to bear the vertical force、lengthways force and transversals force between the road surface and the body or the frame. In order to obtain a good power performance, safety and trafficability characteristic, engineers must promote quality and level of design Driving axle design of the AV6 mainly contains: main gear box, differential, transmitted apparatus of wheel and the housing of driving axle. The main gear box adopted single reduction gear and the differential adopted a common, symmetry, taper, planet gear. Transmission apparatus of wheel adopted full floating axle shaft, and the housing of driving axle adopted the whole pattern. In addition, to calculate parameter of the hypoid gear pair used the procedures of Matlab as well as proofread interrelated parts. During the design process, make use of the CAXA drafting software to expresses the wholes to assemble relationship and part drawing by drafting, with the expression that precision purpose and meaning of its design. Key words：driving axle; main gear box; differential; half shaft; housing 目 录 TOC \o 1-3 \f \h \z 第1章 绪 论 1 1.1 前言 1 1.2 驱动桥的结构方案选择 1 第2章 驱动桥主减速器设计 3 2.