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1、摘要汽车后桥是汽车的主要部件之一，其基本的功用是增大由传动轴或直接由变速器传来的转矩，再将转矩分配给左右驱动车轮，并使左右驱动车轮具有汽车行驶运动所要求的差速功能:同时，驱动桥还要承受作用于路面和车架或承载车身之间的铅垂力、纵向力，横向力及其力矩。其质量，性能的好坏直接影响整车的安全性，经济性、舒适性、可靠性。全套图纸，加本文认真地分析参考了天龙重卡300双驱动桥，在论述汽车驱动桥运行机理的基础上，提练出了在驱动桥设计中应掌握的满足汽车行驶的平顺性和通过性、降噪技术的应用及零件的标准化、部件的通用化、产品的系列化等三大关键技术；阐述了汽车
2、驱动桥的基本原理并进行了系统分析；根据经济、适用、舒适、安全可靠的设计原则和分析比较，确定了重型卡车驱动桥结构形式、布置方法、主减速器总成、差速器总成、半轴、桥壳及轮边减速器的结构型式；并对制动器以及主要零部件进行了强度校核，完善了驱动桥的整体设计。通过本课题的研究，开发设计出适用于装置大马力发动机重型货车的双级驱动桥产品，确保设计的重型卡车驱动桥经济、实用、安全、可靠。关键词：驱动桥主减速器差速器轮边减速器-56-AbstractDriveaxleisoneofthemostimportantpartsofautomobile.Thef
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8、candesignthesingledriveaxledevicesthatapplytotheheavytruckwithhigh-poweredengine,andmakesurethed
