同济大学：《汽车构造》课程电子教案（课件讲稿）Chapter 18 驱动桥 Driving Axle

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTTY Chapter 18 Drive Axle

Chapter 18 Driving Axle Chapter 18 Drive Axle

Chapter 18 Driving Axle 圆日海大学 TONGII UNIVERSTTY Main Contents >Composition,functions and structure types of the drive axle >Final drive:single reduction final drive double reduction final drive、hub reduction gear、 y0- speed final gear、thru-drive(贯通式主减). >Differential gear differential antiskid differential and so on. >Axle shaft and axle case:Support and structure of axle shaft Classification of axle case design feature

Chapter 18 Driving Axle Composition, functions and structure types of the drive axle ； Final drive ：single reduction final drive、double reduction final drive、hub reduction gear、 two￾speed final gear 、thru-drive(贯通式主减). Differential ：gear differential、 antiskid differential and so on. Axle shaft and axle case：Support and structure of axle shaft、Classification of axle case、 design feature. Main Contents

Chapter 18 Driving Axle 同大学 TONGII UNIVERSTTY Composition,functions and structure types of the drive axle 主减速器壳体 半铂套管 主减速器从动齿轮 半铂 主减速器主动齿轮 半钩 差速器

Chapter 18 Driving Axle Composition, functions and structure types of the drive axle

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTTY Composition of the drive axle Components:drive axle case (final drive case and axle shaft sleeve final drive、differential、axle shaft、wheel hub and so on. final Axle case drive differential 3 Axle shaft 5 Wheel hub

Chapter 18 Driving Axle Components：drive axle case（final drive case and axle shaft sleeve ）、 final drive、differential、axle shaft、 wheel hub and so on. Axle case differential final drive Axle shaft Wheel hub Composition of the drive axle

Chapter 18 Driving Axle 圖月儕大学 TONGII UNIVERSTTY Power transmission line Universal transmission output shaft 主减速器壳体 半铂套管 主减速器从动齿轮 Speed reduction, Final drive 半钓 torque increasement 主减速器主动齿轮 axle shaft 半铂 Differential differential axle shaft 差速器 Wheel hub

Chapter 18 Driving Axle Universal transmission output shaft Power transmission line Final drive Speed reduction, torque increasement Differential axle shaft differential axle shaft Wheel hub

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTTY Functions of the drive axle >To pass power to driving wheels; 主减速器 >To decrease speed and 主动锥齿轮 主减速器 从动锥齿轮 increase torque by final drive; 半轴齿轮 行星齿轮 >With a longitudinal engine,to 行星齿轮轴 change the direction of torque 半轴及凸缘 transmission by main bevel gear(锥齿轮)； >To ensure inside and outside 差速器壳防转螺 wheels rotate at different 半轴螺栓 speeds with the differential; 桑塔纳轿车主减速器和差速器 >To realize support and transmission through axle case and wheels

Chapter 18 Driving Axle Functions of the drive axle To pass power to driving wheels； To decrease speed and increase torque by final drive； With a longitudinal engine, to change the direction of torque transmission by main bevel gear(锥齿轮)； To ensure inside and outside wheels rotate at different speeds with the differential； To realize support and transmission through axle case and wheels

Chapter 18 Driving Axle 窗月桥大学 TONGII UNIVERSTTY Types of drive axle >The integral axle 整体式驱动桥实物 >The divided axle 冠动桥 万向节 减振器 传动轴 传动轴 奥迪A4轿车的断开式后驱动桥

Chapter 18 Driving Axle Types of drive axle The divided axle The integral axle

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTT The integral axle(the overall axle) >Features:Axle shaft sleeve and final drive housing are connected 半轴赛管与主减主减速器壳体 速器壳体刚性连接 rigidly as a whole.The drive axle is connected to the frame through elastic 半轴套管 suspension.The axle shaft and driving wheels on both sides can't move relativeb 半轴 主减速器差速器 in transverse plane >Wheels use a】 non- independent suspension structure. 整体式驱动桥实物

Chapter 18 Driving Axle Features：Axle shaft sleeve and final drive housing are connected rigidly as a whole. The drive axle is connected to the frame through elastic suspension. The axle shaft and driving wheels on both sides can’t move relatively in transverse plane. The integral axle(the overall axle) Wheels use a non￾independent suspension structure

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTTY The divided axle Features 减振器 >Drive axle housing is divided into 弹性元件 主减速器 two sections,final drive housing is 传动轴 fixedin the frame,axle shaft and drive shaft are articulated by a universal joint,and drive shaft and driving wheel are articulated by a joint; 摆臂 摆臂轴 车轮 >Wheels on both sides are connected 断开式驱动桥 to the frame with non-independent suspension,and they can bounce independenth 题动桥 万向节 减振器 Wheels use a independent suspension structure. 传动轴 传动轴 奥迪A4轿车的断开式后驱动桥

Chapter 18 Driving Axle Features Drive axle housing is divided into two sections，final drive housing is fixed in the frame，axle shaft and drive shaft are articulated by a universal joint，and drive shaft and driving wheel are articulated by a joint； Wheels on both sides are connected to the frame with non-independent suspension, and they can bounce independently. The divided axle Wheels use a independent suspension structure

Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTTY Segment 1 Final Drive 主减速器壳体 半铂套管 主减速器从动齿轮 半钩 主减速器主动齿轮 半 差速器 >To reduce speed and increase torque; >To change the rotation of torque

Chapter 18 Driving Axle Segment 1 Final Drive To reduce speed and increase torque； To change the rotation of torque