Chapter twenty-three Steering system 同©大学 TONGII UNIVERSTTY Components of manual steering system Steering control steering gear Steering wheel mechanism universal joint Steering universal shaft transmission joint >Steering wheel Pitman arm shaft Knuckle arm >Steering column steering drag link Left Right knuckle knuckle >Steering universal joint Trapezium arm Trapezium arm Tie rod Steering transmission Diagram of mechanic steering system mechanism Functions of steering universal joint >Pitman arm >Easy to place; >Tie rod >Eliminate bad effects caused by installation error and >Knuckle arm installation holder deformation; >Steering trapezium >Can easily achieve the generalization and serialization of parts
第二十三章 汽车转向系统 Steering control mechanism Steering wheel Steering column Steering universal joint Steering transmission mechanism Pitman arm Tie rod Knuckle arm Steering trapezium Components of manual steering system Chapter twenty-three Steering system Functions of steering universal joint Easy to place； Eliminate bad effects caused by installation error and installation holder deformation; Can easily achieve the generalization and serialization of parts
Chapter twenty-three Steering system 同©大学 TONGII UNIVERSTTY Components of manual steering system steering damper manual steering gear steering wheel steering tie rod safe steering shaft knuckle arm steering wheel knuckle Manual steering system of Hongqi-CA7220
第二十三章 汽车转向系统 Components of manual steering system steering tie rod steering wheel knuckle safe steering shaft steering wheel knuckle arm steering damper manual steering gear Manual steering system of Hongqi-CA7220 Chapter twenty-three Steering system
Chapter twenty-three Steering system 同©大学 TONGII UNIVERSTTY Components of manual steering system (video) worm sector Steering shaft pitman arm Steering wheel drag link kingpin knuckle knuckle arm tie rod
第二十三章 汽车转向系统 Components of manual steering system (video) worm Steering shaft pitman arm Steering wheel knuckle kingpin tie rod drag link knuckle arm Chapter twenty-three Steering system sector
Chapter twenty-three Steering system 同©大学 TONGII UNIVERSTTY Components of power steering system >Mechanic steering device: steering control mechanism,steering gear and Steering wheel steering transmission device. Steering shaft >Power steering device:steering oil Steering universal reservoir,oil pump,steering control transmission device valve,steering power cylinder. Steering control valve >Steering shaft drives steering control valve to rotate,make one side of steering Mechanic power cylinder's piston connected to steering gear Tie rod steering oil reservoir which pressure is zero and the other side of piston connected to oil-out of high pressure oil pump and push the piston rod to move. Steering hydraulic pump Oil pipe >When the power steering device loses Steering oil reservoir efficacy,it should be able to steering by Diagram of power steering system of Mazda6 driver alone
第二十三章 汽车转向系统 Power steering device: steering oil reservoir, oil pump, steering control valve, steering power cylinder. Mechanic steering device: steering control mechanism, steering gear and steering transmission device. Steering shaft drives steering control valve to rotate, make one side of steering power cylinder’s piston connected to steering oil reservoir which pressure is zero and the other side of piston connected to oil-out of high pressure oil pump and push the piston rod to move. When the power steering device loses efficacy, it should be able to steering by driver alone. Chapter twenty-three Steering system Components of power steering system Steering wheel Steering universal transmission device Steering shaft Tie rod Steering control valve Mechanic steering gear Steering oil reservoir Steering Oil pipe hydraulic pump Diagram of power steering system of Mazda6
Chapter twenty-three Steering system 圖月儕大学 TONGII UNIVERSTTY Ideal relationship between deflection angle of both sides wheel >To avoid increasing wheel's wear when steering,Each wheel's pure rolling is excepted when steering. That is every wheel's axis should intersect in one point. >B-distance of intersection between kingpin axis on both sides and ground; >L-wheel base of car; 中 >R-turning radius of car; >O-turning center of car. >Relationship between steering angle of inside wheel B and outside wheel a. Ideal relationship between deflection angle of both sides steering wheel when cot=cot邛+B/L double wheel's car is steering
第二十三章 汽车转向系统 To avoid increasing wheel’s wear when steering, Each wheel’s pure rolling is excepted when steering. That is every wheel’s axis should intersect in one point. Relationship between steering angle of inside wheel β and outside wheel α. cotα=cotβ+B/L B—distance of intersection between kingpin axis on both sides and ground; L—wheel base of car； R—turning radius of car； O—turning center of car. Chapter twenty-three Steering system Ideal relationship between deflection angle of both sides steering wheel when double wheel’s car is steering. Ideal relationship between deflection angle of both sides wheel