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1、附录A英文资料ResearchonDesignofPlanetaryGearboxNanjingArtilleryCollege RaoZhenggang［Abstract］Thedesignandcalculationsofplanetarygearboxaredetailedlydiscussedinthisthesis.Thecalculationsofstructureparameters,transmissionratio,torqueofeachshaft,braketorque,lockingmoment
2、,andtransmissionpowerareexplainedhere.Hence,thispaperisofmuchimportancetothedesignofplanetarygearboxofcaterpillarvehicle,tank,artilleryandengineeringmechanics.Keywords:Planetarygearbox Structureparameter Torque Powerc)ClutchLlocksinternalgearrignbandswivelingj
3、ibH(seefigure3,c) WhenclutchLcombinesgearringbandswivelingjibHintoonewhole,nb=nH.ThentorqueTAofinputshaftAcantransmitthroughtwoways:oneistotransmittooutputshaftBthroughcentralgeara,planetgeargandswivelingjibH;theotheristoBbycentralgeara,planetgearg,internalgearr
4、ingbandclutchL.Atthismoment,TA=Ta,TB=-TAandlockingmomentTLisequaltothetorqueofinternalgearringTb,TL=Tb.Accordingtoformula(4-3),thelockingmomentTLisTL=Tb=pTa (4-11) Fromtheformulaabove,whencentralgearainputsandswivelingjibHoutputs,thelockingmomentTLofthefirstsch
5、emeisthelowestandthesizeissmaller.Soasto2K-H(A)planetarygearbox,thefirstschemeismorereasonable. (1)Supposeinternalgearringbinputs,swivelingjibHoutputs(seefigure4),TA=Tb,TB=TH;LetusdiscussthelockingmomentT1offrictionclutchofthreedifferentlockingpattern. a)Clutch
6、Llocksintermalgearringbandcentrageara(seefigure4,a),thatisna=nb=nH;thentheplanetbarbecomesawholeandrotates.SoTB=-TA,T1=Ta.Accordingtoformula(4-2),TLis: (4-12) So, b)ClutchLlockscentralgearaandswivelingjibH(seefigure4,b),thatisnH=naandTL=Ta.SoTLisSo, (4-13) c
7、)ClutchLlocksinternalgearringbandswivelingjibH(seefigure4,c),thatisnH=nbandTL=Tb.SincetheclutchLlinksinputshaftAandoutputshaftB,lockingmomentTLisequaltothetorquetransmittedbyshaftA,namelyTL=Tb=TA.SothelockingmomentTLisTL=TA Fromtheformulaabove,wheninternalgearri
8、nginputsandswivelingjiboutputs,lockingmomentTLofthefirstschemeisthelowest.Soitisthebesttoadoptthefirstlockingscheme. AfterTLiscalculated,thenecessarycontrolun
