同济大学：《汽车构造》课程电子教案（课件讲稿）Chapter 21 车轴和车轮 Axle and Wheel

Chapter 21 Axle and Wheel 同©大学 TONGII UNIVERSTTY Chapter 21 Axle and Wheel

Chapter 21 Axle and Wheel Chapter 21 Axle and Wheel

Chapter 21 Axle and Wheel 窗月桥大学 TONGII UNIVERSTTY Main content >The function and types ofthe axle: >Solid axles,live axle and steering dive axle; >Wheel alignment: >The type,construction feature and representation method of the wheel: The type construction feature and representation method of the tire

Chapter 21 Axle and Wheel Main content The function and types of the axle； Solid axles, live axle and steering dive axle； Wheel alignment； The type, construction feature and representation method of the wheel； The type,construction feature and representation method of the tire

Chapter 21 Axle and Wheel 窗月桥大学 TONGII UNIVERSTTY Part 1 The axle >Axle is a assemble that connects the left and right wheel of the car,and it also connects the frame through the suspension system. 驱动桥 悬架 汽车驱动桥与悬架的关系

Chapter 21 Axle and Wheel Part 1 The Axle Axle is a assemble that connects the left and right wheel of the car, and it also connects the frame through the suspension system

Chapter 21 Axle and Wheel 窗月桥大学 TONGII UNIVERSITY Function of the axle >The function of the axle is to transfer the force and moment between frame (or uni-body)and wheels. Axle types According to effect of According to connecting the wheels the structure >Steering axle >Live axle >Drive axle >Solid axles >Steering drive axle >Support axle

Chapter 21 Axle and Wheel The function of the axle is to transfer the force and moment between frame (or uni-body) and wheels. According to effect of connecting the wheels Steering axle Drive axle Steering drive axle Support axle Function of the axle Axle types According to the structure Live axle Solid axles

Chapter 21 Axle and Wheel 同©大学 TONGII UNIVERSTTY Axle types >Solid axle:usually used along with rigid suspension system,the middle of solid axle is rigid. >Live axle:usually used along with independent suspension,each wheel mounts separately to the frame thus the wheels act independently of one another. Two-axle vehicle >Front axle is steering drive axle and rear axle is support FF or AWD axle(or dive axle). >Or front axle is steering axle >FR or RR and rear is drive axle. >Multi-axle vehicle front axle is steering axle and rear is drive axle,middle axle acts as support axle or drive axle

Chapter 21 Axle and Wheel Two-axle vehicle Front axle is steering drive axle and rear axle is support axle(or dive axle). Or front axle is steering axle and rear is drive axle. FR or RR FF or AWD Multi-axle vehicle : front axle is steering axle and rear is drive axle ,middle axle acts as support axle or drive axle. Axle types Solid axle：usually used along with rigid suspension system, the middle of solid axle is rigid. Live axle：usually used along with independent suspension, each wheel mounts separately to the frame thus the wheels act independently of one another

Chapter 21 Axle and Wheel 窗月桥大学 TONGII UNIVERSTTY Steering axle >Steering axle deflects the wheels through steering knuckle so that the car can turn an angle. >Steering axle usually acts as front axle. >Force it bears vertical force, longitudinal force and its moment, lateral force and its moment

Chapter 21 Axle and Wheel Steering axle deflects the wheels through steering knuckle so that the car can turn an angle. Steering axle usually acts as front axle. Force it bears :vertical force， longitudinal force and its moment, lateral force and its moment. Steering axle

Chapter 21 Axle and Wheel 日儕大学 TONGII UNIVERSTTY Steering axle's structure wheel hub Kingpin主销 >Component:front member,steering knuckle,wheel hub, kingpin ,etc. Bushing The sustainment of 衬套 steering axle >Connect with Left and Thrust bearing right wheel; 0 >Connect with frame through suspension spring. Front member Steering knuckle

Chapter 21 Axle and Wheel Steering axle’s structure Component：front member , steering knuckle，wheel hub， kingpin ,etc. The sustainment of steering axle Connect with Left and right wheel； Connect with frame through suspension spring. Front member Steering knuckle Kingpin 主销 wheel hub Bushing 衬套 Thrust bearing

Chapter 21 Axle and Wheel 月濟大学 TONGII UNIVERSTTY Steering axle's structure Axle hub Kingpin >Front member:its section uses I-beam or hollow circular beam in order to bear bending moment (also bears Bushing bending and torsion when braking). Thrust bearing >Kingpin:the component that connect front axle and knuckle,it is fixed in the pin hole Front of the front axle. member Steering knuckle

Chapter 21 Axle and Wheel Front member：its section uses I-beam or hollow circular beam in order to bear bending moment (also bears bending and torsion when braking). Kingpin：the component that connect front axle and knuckle, it is fixed in the pin hole of the front axle. Steering axle’s structure Front member Steering knuckle Kingpin Axle hub Bushing Thrust bearing

Chapter 21 Axle and Wheel 同©大学 TONGII UNIVERSTTY Steering axle's structure Axle hub Kingpin >Axle hub:a component that located on the wheel which can spin.It is mounted in the knuckle journal Bushing through two hub bearings,its inner side is bigger axle. Thrust bearing >Steering knuckle: a Y-piece which have Front two pin holes to 雕ember mount kingpin,and base plate is mounted on its root. Steering knuckle

Chapter 21 Axle and Wheel Axle hub：a component that located on the wheel which can spin. It is mounted in the knuckle journal through two hub bearings ,its inner side is bigger axle. Steering knuckle： a Y-piece which have two pin holes to mount kingpin, and base plate is mounted on its root. Front member Steering knuckle Kingpin Axle hub Bushing Thrust bearing Front member Steering axle’s structure

Chapter 21 Axle and Wheel 窗月桥大学 TONGII UNIVERSTTY Steering axle's structure Steering >Steering knuckle arm knuckle arm acts with steering linkage to realize the steering; >Lubrication:the moving parts are lubricated by grease. Steering tie rod Tie rod arm rest

Chapter 21 Axle and Wheel Steering knuckle arm acts with steering linkage to realize the steering; Lubrication：the moving parts are lubricated by grease. Steering knuckle arm Tie rod arm rest Steering tie rod Steering axle’s structure