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1、StructureofSmall-tonnageTruckCraneofSANYContents1,CategoryofCraneinNingXiangIndustryPark2,BasicPrincipleofTruckCrane3,MainStructure4,HydraulicSystem5,ElectricalSystem121,CategoryofCraneinNingXiangIndustryPark3All-terrainCraneTruckCraneLorryCraneRoughTerrainCraneCategory42,Basic
2、PrincipleofTruckCrane5BasicPrincipleThetruckcraneinSANYishydrauliccrane.Thepumpsendthehydraulicoiltotheactuatorthroughmanycontrolvalues.AndthepowerofalltheactioncomesfromtheEnginewhichassembledinautomobilechassis.EngineMaincontrolvaluesCoolingexchangeSwingmotorTelescopiccylinde
3、rAuxiliarywinchFifthOutriggercylinderMainwinchAirConditionGearboxPTOoutportPumpsgroupHydraulicoiltankOutriggercontrolvalvesLuffingcylinderLevelOutriggercylindersVerticalOutriggercylinders63,MainStructure7MainstructureStructurethetruckcraneMain/auxiliaryhookTelescopicboomLuffing
4、cylinderControlcabinMain/auxiliarywinchJibTurntableChassisOutriggers8TelescopicBoomSystemMainstructure9Telescopicboomsystemisoneofthemostimportantpartintruckcrane.And,itisthemostimportantbearingstructurewhenliftingload.Thestrengthandstiffnessareabletoaffecttheabilityofthetruckc
5、rane.Andthetelescopicboomsystemconsistoftelescopicboom,latticeboom,telescopicboomcylinder,telescopicboomsteelwirerope,guidewheel,sliderandpulleyblock.TelescopicboomcylinderTelescopicboomsteelwireropeGuidewheelSliderPulleyblockMainstructure10LuffingSystemLuffingsystemconsistoflu
6、ffingcylinder,pressuresensorandarticulatedmechanism.Astheluffingcylinderextendorreduction,thetelescopicboomrotatearoundwiththearticulatedmechanism.Andthentheboomcanupanddown.PressuresensorArticulatedmechanismMainstructure11WinchSystemWinchsystemisusedtoliftweights.Anditconsisto
7、fwinchdriveunit,winchunitandwinchcontrolunit.Usually,therearetwowinchesonthetruckcrane.WinchdriveunitWinchunitWinchcontrolunitMainstructure12Winchdriveunitconsistofvariablehydraulicmotorandmotorreducer.HydraulicmotorMotorreducerMainstructure13Winchunitconsistofreel,rollerandste
8、elwirerope.ReelRollerMainstructure14SwingSystemInorder
