长安牌SC1050KW31型载货汽车后驱动桥的设计毕业设计

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1、 I 摘 要 驱动桥作为汽车四大总成之一，它的性能好坏直接影响整车性能，而对于载货汽 车显得尤为重要。当采用大功率发动机输出大的转矩以满足目前载货汽车的快速、高 效率、高效益的需要时，必须要搭配一个高效、可靠的驱动桥。 本次设计任务是设计一款用于轻型载货货车后驱动桥，设计中对驱动桥的主减速 器、差速器进行了类型的分析、选择、计算及校核。根据最大转矩、滚动半径等重要 参数，选择最大及最小传动比。结合运用汽车设计、汽车理论、机械设计、机械原理 等知识，完成相关计算及校核，画出装配图及零件图。 在驱动桥的总成设计中，参考了一些国家相关标准，同时考虑到和其他汽车总成 之间的协调，争取做到满足汽车使用要

2、求的同时，能减少自身的重量，以减少制造成 本。驱动桥个零件设计时，需要选取各种各样的参数，参数的选择是根据具体的条件 来的，有些参数在树上找不到相应根据所以必须的选择时根据具体的条件来的，有些 参数在书上找不到，相应的根据，所以必须查阅相关的工具书籍和资料，以保证设计 的科学性和准确性。 关键词：驱动桥；轴荷分配；动力性；通过性；操作稳定性； II ABSTRACT Drive axle assembly of a vehicle one of the four, it directly affects the performance of vehicle performance, and i

3、s particularly important for the truck. When using large high-power engine output torque to meet the current trucks fast, efficient, cost-effective and necessary, must be with an efficient, reliable drive axle. The design task is to design a light-laden truck used after the drive axle, drive axle de

4、sign on the main gear box, differential for the type of analysis, selection, calculation and checking. Based on the maximum torque, the rolling radius and other important parameters, select the maximum and minimum transmission ratio. Combination of automotive design, automotive theory, mechanical de

5、sign, mechanical principles of such knowledge, complete the relevant calculation and check, draw assembly drawings and part drawings. In the drive axle assembly design, with reference to some of the relevant national standards, taking into account the assembly and coordination between other cars, an

6、d strive to achieve to meet automotive requirements, while reducing the weight of its own, in order to reduce manufacturing costs. Drive axle design of parts, need to select a variety of parameters, parameter selection is based on specific conditions, some parameters can not find the tree must be the appropriate choice according to specific conditions to, and some parameters can not find in the book, the corresponding basis, so the books must be access to relevant tools and information to en