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1、摘要汽车后桥是汽车的主要部件2—，其基本的功用是增大由传动轴或直接由变速器传來的转矩，再将转矩分配给左右驱动车轮，并使左右驱动车轮具有汽不行驶运动所耍求的差速功能:同时，驱动桥述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。本文认真地分析参考了江淮HF15015卡车驱动桥以及韩国现代468号驱动桥，在论述汽车驱动桥运行机理的棊础上,提练出了在驱动桥设计中应拿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
2、术;阐述了汽车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，确定了商用汽车驱动桥结构形式、布置方法、主减速器总成、差速器总成、桥壳及半轴的结构型式；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直大马力发动机重型货车的单级驱动桥产品，确保设计的商用车驱动桥经济、实用、安全、可靠。关键词：商用汽车；驱动桥；主减速器；香速器AbstractDriveaxleisoneofthemostimportantpartsofautomobile・Thefuncti
3、onistoincreasethetorquefromdriveshaftorfromtransmissiondirectly,andthendistributeittoleftandrightwheelswhichhavethedifferentialabilityautomobileneededwhendriving.Andthedriveaxlehastosupporttheverticalforce,longitudinalforce,horizontalforceandtheirmomentsbetweenroadandframeor
4、body・Itsqualityandperformancewillaffectthesecurity,economic,comfortabilityandreliability.ThisarticleanalyzesandreferstothedriveaxleofJianghuaiHF15015truckandthe468driveaxleofHyundaiseriously.Throughthestudyofthistopic,wecandesignthesingledrivingaxledevicesthatapplytotheheavy
5、truckwithhigh-poweredengine,andmakesurethedriveaxlewedesignofheavytruckeconomic,practical,safeandreliable.Ontalkingabouttherunningprincipalofdrivingaxle,thethreekeytechnoledgeaboutvehicletravelingontherideandthrough,andnoisereductiontechnologyapplicationsandthestandardizatio
6、nofparts,componentsoftheuniversal,Productssuchastheserializationthatweshouldmastertomeet,itdescribesandhasasystematicanalysisonthebasicprinciplesofviecledriveaxle.Accordingtothedesignprinciplesandanalysisandcomparisonofeconomy,application,comfortability,safetyandreliability、
7、theheavytruckdriveaxlestructure,layoutways,andthefinaldriveassembly,differentialassembly,thebridgecaseandaxlestructurecanbedetermined;andthestrengthcheckingofbrakeparts,aswellasmajorcomponentsimprovesoveralldesignofthedrivingaxle.Throughthestudyofthistopic,wccandesignthesing
8、ledriveaxledevicesthatapplytotheheavytruckwithhigh-poweredengine,andmakesur
