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1、毕业论文附件材料1 英文文献翻译11.1 Shiftgearbox11.2 变速箱的换挡方式1.21英文文献翻译1.1 ShiftgearboxClassificationusuallygearboxasfollows:ManualtransmissionThegeneralautomaticgearbox/commonautomatictransmissionwithtiptronicCVTsteplessgearboxwithgearboxofthe/CVTDualclutchgearboxSequentialgearbox(1) manualgearboxManualtransmissi
2、on,alsoknownasmanualgear,Englishnameismanualtransmission,referredtoasMT,whichpushtheshiftlevertochangegearsmeshingpositioninsidethetransmission,changingthetransmissionratio,soastoachievethepurposeofspeed.Stepontheclutch,canmovetheshiftlever.TheworkingprincipleofamanualgearboxThemanualgearboxiscompos
3、edofdifferentgearratioofthegeargroup,itsbasicprincipleisthroughthegeargroupworkindifferent,torealizethetransformationofgearratio.Asthekeylinkforpowerdistribution,transmissionmusthavethepowerinputshaftandtheoutputshaftofthebigtwo,togetherconstitutethetransmissiongear,isamanualtransmissionisthemostbas
4、iccomponent.Thepowerinputisconnectedwiththeclutchshaftclutchtransmission,fromthepowertodirectlythroughtheinputshafttothegroup,thegearsetiscomposedofdifferentdiametergear,gearpowertransmissioneffectofdifferentproportionreachediscompletelydifferent,theusualshiftdrivingalsoreferstochangegearratio.Next,
5、letusthroughasimplemodeltotellyou,theprincipleofmanualgearboxshift.Belowisasimplestructuralmodelof3axis2speedgearbox.Theinputshaft(green)isalsocalledthefirstshaft,connectedbyaclutchandengine,shaftandthegearisahardconnectedcomponents.Rediscalledtheintermediategearshaft.Enterthetwogearshaftandintermed
6、iateshaftisinconstantmeshstate,sowhentheinputshaftrotateswilldriveshaftrotation.Yellowistheoutputshaft,itisalsocalledthesecondshaftsandconnectedtothedriveshaft(onlyforrearwheeldrive,theprecursorisgenerallytwo),andthenthroughthedifferentialdrivevehicles.Whenthewheelrotatesthesamewithsplineshafttorota
7、tetogether,atthistime,bluegearshaftcanoccuronthesplineshaftrelativefreerotation.Therefore,theenginestops,andthewheelisrotated,thebluegearandshaftinthestationarystate,andthesplineshaftwithwheels.Theprincipleandtherearaxleofthebicycleflywheelissimilar.Bluegearandsplineshaftiscomposedofasleevetoconnect
8、,sleevewithsplineshafttorotate,butalsocanbefreetoslideonthesplineshafttogear.Withthese,theshiftingprocessisverygoodunderstanding,whenconnectingsleeveandabluegear,enginepowerwillbetransmittedtotheoutputshaftthroughtheshaft,atthesametime,bluegearleftinfreerotation,butbecausethereisnoandsleeveengaged,s
9、oitdoesnotaffectthesplineshaft.Ifthesleevebetweenthetwobluegear,thegearboxinneutralposition,thetwobluegearonthesplineshaftrotatefreely,withoutmutualinterference.护科w1:r附之家AVTOHDME.COWCNPrincipleofaconventional5speedmanualgearboxshiftisthesame,onlythegearboxstructureincreasedthenumberofsleeveandthegea
10、rsets,sothatithasmoregear.Butthereverseisbasedontheintermediateshaft(red)andtheoutputshaft(blue)isaddedbetweenageartoachieve.Duetotheincreaseofagear,thereversegearwillalwaysrotatetowardothergearintheoppositedirection.Thegearbecauseonlytochangegearrotationdirectionfunction,soitisalsocalledtheidler.点车
11、之家;AUTOHDME. COW CN5blocktwoshafttransmissionstructure,theinputshaftandthedrivinggearareintegratedintoawhole,simplifiesthestructureandsavesspaceInadditiontothetraditionalthreeaxismanualgearbox,thewidespreaduseofcarsistwoaxismanualtransmission,itsstructureandthethreeshaftofthegearboxissimilar,onlythe
12、inputshaftandintermediateshaftasashaft,thereforehastheadvantagesofsimplestructure,smallsizeadvantages,inaddition,italsohasthemiddlegeartransmissionhighefficiency,andlownoisecharacteristics,soitismoresuitabletobetheprecursorhomecargeneralcartransmissionform,iscurrentlythemostwidelyused,itsshortcoming
13、sisnotsetupdirectgear,transmissionandfilethanthedesigncannotbetoohigh.Whiledriving,threeshaftgearboxusedisstillthetraditional.Manualgearboxingeneral,isthroughthepushrodisconnectedorcabletocontroltheshift.Pushrodshiftcontrolconnection,moredirectbutvibrationwillbelarge;andthecabletypealthoughnovibrati
14、on,buttheshiftisnotveryclear,itiseachtohavegoodandbad.Inadditiontoshiftthetwopuremechanicalcontrol,inaddition,andtheuseofelectronicshiftdeviceofmanualtransmission,whichcancombinethemeritsofpushandpulltheshiftbetweenthegood.Thiskindofgearboxintheshiftwhenthegearshiftlever,shiftingtothecorrespondingge
15、ar,thetransmissionwillbemotordrivethecorrespondingforkcontrolsleeveandthegearisengaged,sothatthereisnogearisnotclear,buttheshiftschedulecanbecontrolledintheidealrange.So,agoodmanualtransmissionneedtohavewhatcharacteristic?Thefirsttransmissionmusthavegoodgearhandle,eachgearpositionclear,havereasonabl
16、ehorizontalandverticalstroke,intotheblockresistanceissmallandwithsuction.Whatismoreimportantis,thegeartoothbetweenthanarrangementmustbereasonable.Becauseeachgearpositionthandistribution,directlyaffectthecohesionpowervehiclesmovinginasmooth,usuallyrequirealowgearcaneffectivelyaccelerate,highblocktoachievehighspeedandefficient,andthedistancebetweeneachblockshouldbeuniform,otherwisewillbeveryeasytocausethechannelingshiftwhe
