4吨BJ130轻型商用车的驱动桥的设计毕业论文.doc

摘 要 21世纪以来，由于社会需求的增长和科学技术的发展，汽车设计日臻精巧。其运输生产率和各项性能有了很大的提高。汽车工业的规模及产品质量已成为衡量一个国家技术水平的重要标志之一。 本设计说明书中详细的阐述了4吨BJ130轻型商用车的驱动桥的设计过程，说明了驱动桥的功用，设计部分又主要包括主减速器、差速器、半轴的设计计算。 对主减速器选用了悬臂式支撑，对齿轮和相关轴承进行了校核；对差速器选用了工作可靠的普通锥齿轮差速器；对于驱动桥壳由于车辆载重较小，选用了钢板冲压焊接式桥壳。并且在每章之后都有对相关零件的校核。 结束语和致谢部分，对本次设计做了简要的回顾和总结。 文后附录了英文翻译。 关键词：驱动桥、结构、基本参数、校核。 外文摘要 Title The design of rear drive axle of a 4t BJ130 business truck Abstract The vehicle design becomes more perfect for the increasing needs of the social and the development of the science and technology since 21 century. The vehicles convey are efficiency and many performances have been improved. The scale of the auto-motive industry and its product’s quality is one of the important marks of judging the level of a nation’s technology. The article is a detailed process to the design of rear drive axle of a 4t BJ130 business truck. It expounds the function of the rear axle. The design part mainly includes the calculation and design of the reducer, the differential, the half shaft. We use the cross style to crutch the pinion gear, check the ring and pinion gear and the bearing we used in the differential. We choose a normal differential for the drive axle. Because the load of the truck is so small, we choose holistic casting axle housing. And we also check the main part after every chapter. The tag and the acknowledgement are the brief review and the summary of the design. In the end, there are the appendixes of the C program for the parameter of the ring and pinion gear and the translation. Keywords: drive axle, structure, the basic parameters, proofreading. 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc169663008 中文摘要 PAGEREF _Toc169663008 \h 1 HYPERLINK \l _Toc169663009 外文摘要 PAGEREF _Toc169663009 \h 2 HYPERLINK \l _Toc169663010 目录 PAGEREF _Toc169663010 \h 3 HYPERLINK \l _Toc169663011 1 绪论 PAGEREF _Toc169663011 \h 5 HYPERLINK \l _Toc169663012 2 驱动桥结构型式的选择 PAGEREF _Toc169663012 \h 5 HYPERLINK \l _Toc169663013 2．1 驱动桥总成结构型式选择 PAGER