车辆毕业设计东风300贯通式驱动桥及轮边减速器设计（全套cad图纸）.pdf

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 ABSTRACT Driveaxleisoneofthemostimportantpartsofautomobile.Thefunctionistoincrease the torque from drive shaft or from transmission directly, and then distribute it to left and right wheels which have the differential ability automobile needed when driving.And the drive axle has to support the vertical force, longitudinal force, horizontal force and their moments between road and frame or body. Its quality and performance will affect the security,economic,comfortablyandreliability. ThisarticleanalyzesandreferstothedriveaxleofTianlongtruckandthe300driveaxle ofHyundaiseriously.Throughthe studyofthistopic,wecandesignthe singledrivingaxle devices that apply to the heavy truck with high-powered engine, and make surethe drive axlewe design ofheavy truck economic,practical, safe andreliable. On talking about the runningprincipalofdrivingaxle,thethreekeytechnoledgeabout vehicletravelingonthe ride and through, and noise reduction technology applications and the standardization of parts, componentsoftheuniversal,Productssuchasthe serializationthatwe shouldmaster to meet, it describes andhas a systematic analysis on the basic principles ofvehicle drive axle. According to the design principles and analysis and comparison of economy, application,comfortably,safetyandreliability ,theheavy truck driveaxlestructure,layout ways, andthe finaldriveassembly,differentialasse