液压起重机能量回收的再利用及平衡性分析

2009(3):,,,,,:;;;Abstract:Basedonanalysisofenergybalance,thepaperbringsoutadrivesystemthatcanrecyclehydraulicener2gy1Itconsistsofenergyaccumulatorandbalancehydrauliccylinder1Itcanimprovecranepsefficiencybymeansofloadsens2ingtechnolosy1Testsshowthatthismethodcanimprovehydrauliccranepsenergyutilization1Keywords:hydrauliccrane;energyaccumulator;energysaving;energyrecycling1,,,,2[1],,,,[2],[3],21,FLPloss=Pin-Pmech(1):Ploss;Pin;Pmech,FL(),Pmech,Ploss()2,Pin,,,;,,FL,Pmech,,Pin,,,1,[4-6],(1)48©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3)Ploss=Pin-(Pmech+Pacc)(2),Pacc(2)2,A,B23500kg,Pg0MPa7MPa,0MPa,t34311Pg=0MPa21Pg=7MPa411Pg=0MPa21Pg=7MPa3,,Ps,PA;4,PSPA,4:(1),;(2),,,PgVng=C(3)Vg(3),411(4)(5)(6)(7)Epump=t0psQsdt(4)Ploss=ki=1(Pin-Pmech)(5)Eloss=t0Plossdt(6)Eacc=t0PgdVg(7)5656,PsPg0MPa7MPa,7MPa,0MPa,7MPa0MPa,,,4121,58©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3)Epump=Emech+Eloss+Eacc(8)Emech,,,Eacc,,(7)Eacc=0,Epump=Emech+Eloss(9)(7),1/kg500500500500/MPa0077/kj5100350100051003381025/kj431503121008301828121008/kj121625/kj1110135,,,,,1BackeW.Hydraulicdriveswithhighefficiency.FluidPowerSystemsandTechnologyASME1995,FPST-Vo112:45732LiangXG,VirvaloT,LinjamaM1Theinfluenceofcontrolvalvesontheefficiencyofahydrauliccrane16thScandinavi2anInternationalConferenceofFluidPower,TamPere,Finland,1999(5):3813943,11,2005,19(2):39424,,11,2003,19(2):91935VaughanND,DoreyRE1Hydraulicaccumulatorenergystorageinacitybus1IntegratedEngineTransmissionSys2tems,C186/86IMechE,1986:1051166NoackS,RiedeH1CalculationoftheEnergyBalanceofComplexHydraulicDrives,6thScandinavianInternationalConferenceofFluidPower,TamPere,Finland,1999(5):9039207M1Luomaranta1AStableElectrohydraulicSensingSystemBasedonAMicrocontroller16thScandinavianInternationalConferenceofFluidPower,Tampere,Finland,1999(5):419432::061:410004:2008-07-032009:2009628-30,::,,,,,,,,:[phone],:[phone],:(13269918018),E-mail:hmlchangcheng@1631com68©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.