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1、HowBogiesWork?TANGYangSunday,December18,2022Whatsabogie?Definitionfromhttp:/en.wikipedia.org:achassisorframeworkcarryingwheels,attachedtoavehicle.DefinitionfromTextbookChe Liang Gong Cheng(Vehicle engineering):awheeledwagonortrolleycomprisingtwoormorewheelsetsconnectedbyspecialframeorsideframe,attac
2、hedtoavehicle.Names转向架(ZhuanXiangJia)or走行部(ZouXingBu)inChinaBogieintheUKTruckintheUSA,CanadaandMexico台车(,fromtrolley),inJapanRolesofbogieSupportcarbodyfirmlyRunstablyonbothstraightandcurvedtrackEnsuregoodridecomfortMinimizegenerationoftrackirregularitiesandrailabrasion.DevelopmentinaxlenumberTwoaxle
3、s,onerailcarThreeaxles,onerailcarTwotwo-axlebogie,onerailcar(mostcommonforpassenger,freightcars,metro,LRTandhighspeedlocomotives)Twothree-axlebogie,onerailcar(mostcommonforfreightlocomotives)Articulatedbogie,tworailcars(TGVEMU)Morethanthreeaxlesinonebogie,ormorethantwobogiesinonerailcarDevelopmentin
4、axleload10tatthebeginningofrailway.TheMaximumvalueis25tinChina,especiallyforFreightcar,3237tinAmerica.Forpassengertrains,thelimitofaxleloadisalwayslessthan17t.Two axles,one railcarTwo axles,one railcar(carriage)Two axles,one railcar(gondola)For more detailsSee also:Three axles,one railcarThree axles
5、,one railcar(carriage)Two two-axle bogies,one railcar(gondola)Two two-axle bogies,one railcar(carriage)Three two-axle bogies,one railcar(locomotive)Two two-axle bogies,one railcar(High speed locomotive)One two-axle bogie,two railcars(TGV)Two four-axle bogies,one railcar(flat car)Four four-axle bogie
6、s,one railcar(depressed center flat car)Etat Railway 4 axled bogie railcar ZZy24091 is one of the famous Bugatti vehicles.This is one of the Presidential type.May 30 2003Two five-axle bogies,one railcar(flat car)Four eight-axle bogies,one railcar(schnabel car)DevelopmentinbogiesuspensionNosuspension
7、Onesuspension(freightcars)Twosuspensions(mostcommoninmodernpassengercarsandlocomotives)Threesuspensions(rare,onlyforspecialpurposes)One-suspension bogieOne-suspension bogieTwo-suspension bogieThree-suspension bogieHowatwo-suspensionbogiesupportsthevehiclebody?Onesuspensionbogie(caststeelbogie)Equali
8、serBarSuspensionRubberSuspensionAirSuspensionHowabogierunsonthetrack?TheshapeandlocationofwheelsandrailsonstraighttrackTheshapeandlocationofwheelsandrailsoncurvedtrackNegotiatingcurveofRailcarwithtwobogiesAmodernUKpowerbogieBogie FrameCanbeofsteelplateorcaststeel.Inthiscase,itisamoderndesignofwelded
9、steelboxformatwherethestructureisformedintohollowsectionsoftherequiredshape.Bogie TransomTransversestructuralmemberofbogieframe(usuallytwooff)whichalsosupportsthecarbodyguidancepartsandthetractionmotors.Brake CylinderAnairbrakecylinderisprovidedforeachwheel.Acylindercanoperatetreadordiscbrakes.Somed
10、esignsincorporateparkingbrakesaswell.Somebogieshavetwobrakecylindersperwheelforheavydutybrakingrequirements.Eachwheelisprovidedwithabrakedisconeachsideandabrakepadactuatedbythebrakecylinder.Apairofpadsishungfromthebogieframeandactivatedbylinksattachedtothepistoninthebrakecylinder.Whenairisadmittedin
11、tothebrakecylinder,theinternalpistonmovestheselinksandcausesthebrakepadstopressagainstthediscs.Abrakehangersupportbracketcarriesthebrakehangers,fromwhichthepadsarehung.Primary Suspension CoilAsteelcoilspring,twoofwhicharefittedtoeachaxleboxinthisdesign.Theycarrytheweightofthebogieframeandanythingatt
12、achedtoit.Motor Suspension TubeManymotorsaresuspendedbetweenthetransversememberofthebogieframecalledthetransomandtheaxle.Thismotoriscallednosesuspendedbecauseitishungbetweenthesuspensiontubeandasinglemountingonthebogietransomcalledthenose.GearboxThiscontainsthepinionandgearwheelwhichconnectsthedrive
13、fromthearmaturetotheaxle.Lifting LugAllowsthebogietobeliftedbyacranewithouttheneedtotiechainsorropesaroundtheframe.MotorNormally,eachaxlehasitsownmotor.Itdrivestheaxlethroughthegearbox.Somedesigns,particularlyontramcars,useamotortodrivetwoaxlesNeutral Section Switch DetectorIntheUK,theoverheadlineis
14、dividedintosectionswithshortneutralsectionsseparatingthem.Itisnecessarytoswitchoffthecurrentonthetrainwhiletheneutralsectioniscrossed.Amagneticdevicemountedonthetrackmarksthestartandfinishoftheneutralsection.Thedeviceisdetectedbyaboxmountedontheleadingbogieofthetraintoinformtheequipmentwhentoswitcho
15、ffandon.Secondary Suspension Air BagRubberairsuspensionbagsareprovidedasthesecondarysuspensionsystemformostmoderntrains.Theairissuppliedfromthetrainscompressedairsystem.Wheel Slide Protection System Lead to AxleboxWhereaWheelSlideProtection(WSP)systemisfitted,axleboxesarefittedwithspeedsensors.These
16、areconnectedbymeansofacableattachedtotheWSPboxcoverontheaxleend.Loose Leads for Connection to CarbodyThemotorcircuitsareconnectedtothetractionequipmentinthecarorlocomotivebyflexibleleadsshownhere.Shock AbsorberToreducetheeffectsofvibrationoccurringasaresultofthewheel/railinterface.Axlebox CoverSimpl
17、eprotectionforthereturncurrentbrush,iffitted,andtheaxlebearinglubrication.YourPresentationEachgroupconsistsof3students,thefirstoneforgeneralintroductiontoyourbogie,secondforthemajorstructuresandfunctions,andthethirdoneforitsfeatures,10minutes.Self-steeringRadialBogie自导向径向转向架Force-steeringRadialBogie迫导向径向转向架(BogieofChongQingMonorail重庆单轨转向架CRH2EMUbogieCRH2动车组转向架CRH5EMUbogieCRH5动车组转向架TiltingBogie摆式列车转向架Bogieforordinaryfreightwagons通用货车Bogiefor100%low-floorvehicle100%低地板轻轨车辆转向架BogieforMaglev磁悬浮列车转向架Bogieforordinarypassengercars普通客车转向架Bogieforsuspendedmonorail悬挂式单轨转向架
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