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1、本科学生毕业设计东风300贯通式驱动桥及轮边减速器设计院系名称:汽车与交通工程学院专业班级:学生姓名:指导教师:职称:黑龙江工程学院二○一一年六月TheGraduationDesignforBachelor'sDegreeDesignofTransfixionTypeDrivingAxleandWheelEdgesReducerCandidate:Specialty:Class:Supervisor:HeilongjiangInstituteofTechnology2011-06·Harbin摘要汽车驱动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
2、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。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、差速器、半轴、桥壳及轮边减速器的
3、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。关键字:贯通轴;驱动桥;主减速器;差速器;轮边减速器ABSTRACTDriveaxleisoneofthemostimportantpartsofautomobile.Thefunctionistoincreasethetorquefromdriveshaftorfromtransmissiondirectly,andthendistributeittoleftandrightwheelswhich
4、havethedifferentialabilityautomobileneededwhendriving.Andthedriveaxlehastosupporttheverticalforce,longitudinalforce,horizontalforceandtheirmomentsbetweenroadandframeorbody.Itsqualityandperformancewillaffectthesecurity,economic,comfortablyandreliability.ThisarticleanalyzesandreferstothedriveaxleofTia
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7、andanalysisandcomparisonofeconomy,application,comfortably,safetyandreliability,theheavytruckdriveaxlestructure,layoutways,andthefinaldriveassembly,differentialassembly,thebridgecaseandaxlestructurecan