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外文翻译--打包机组液压原理及液压系统维护.doc

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外文翻译--打包机组液压原理及液压系统维护.doc

外文1HYDRAULICSYSTEMFORPREPRESSERABSTRACTTHEPAPERINTRODUCESTHECOMPOSITION,OPERATIONPRINCIPLEANDFEATURESOFTHEPROPRESSER’SHYDRAULICSYSTEM,ANDALSOTHEMAINTENANCEOFTHESYSTEMINDETAILKEYWORDSHYDRAULICSYSTEM,MAINTENANCEOFHYDRAULICSYSTEMATPRESENT,HIGHPRESSUREHYDRAULICTECHNOLOGYINACHIEVINGTHEFLOWANDHIGHEFFICIENCY,DURABILITYANDAHIGHDEGREEOFINTEGRATION,ANDOTHERREQUIREMENTSHAVEMADESIGNIFICANTPROGRESS,ISINCREASINGLYSHOWTHEIRVITALITYTOBACCOINDUSTRYINTHEAPPLICATIONAREVERYWIDE1PACKINGAHYDRAULICTRANSMISSIONUNITANDTHECOMPOSITIONOFTHEWORKINGPRINCIPLE11PACKINGPRINCIPLEHYDRAULICTRANSMISSIONUNITPREPRESSUREHYDRAULICSYSTEMISTHECOREOFTHEPACKAGEUNIT,HYDRAULICSYSTEM,THEECWILLHAVEADIRECTIMPACTONSURCHARGINGPACKINGUNITPERFORMANCETWOOFTHEHYDRAULICPRESSHYDRAULICSYSTEMFIGURE1FROMTHEMAINHYDRAULICPUMPINGSTATION,HYDRAULICPIPELINESYSTEMSANDCOMPONENTS,SUCHASFUELTANKS,HYDRAULICPUMPSTATIONANDFROMFUELTANKS,HYDRAULICPUMPGROUP,CONTROLVALVEBLOCK,FILTERCOOLINGSYSTEMCOMPONENTS,PREPRESSUREFUELTANKSANDTOUPGRADETHEFUELTANKMOVEMENTSRELYINGONLIQUIDPRESSURETOACHIEVEWHENTHEFUELTANKSDONOTWORK,THEOILPUMPPRESSURERELIEFVALVECANBEELECTROMAGNETICORREVERSINGVALVEFUNCTIONTOTHEMEDIANUNLOADINGELECTROMAGNETWHENDT15OR16DTFORELECTRICITY,NO641OR642HYDRAULICCONTROLVALVEOPENED,THEFUELTANKCOULDSURCHARGINGFORMEDDIFFERENTIALCIRCUIT,THEWHEREABOUTSOFFREEDOMFASTDOWNLINKCAPABILITIES,INAFREEWHEREABOUTSSTAGELIQUIDFILLEDTANKFILLEDTHROUGHTHEVALVE681ORSERIALNUMBER682TOTHEMASTERCYLINDERONTHECAVITYQUICKLYADDOILSURCHARGINGAMULTIPUMPFUELTANKSWEREUNLOADINGOILANDTHEFORMOFPREPRESSUREFUELTANKSTOACHIEVERAPID,SLOWSPEED,ANDOTHERREQUIREMENTSOFTHEONEWAYEXPENDITURETHEFUELTANKVALVEADJUSTABLESPEEDBUFFERORSPEED,THECOOLINGSYSTEMCANSTRICTLYCONTROLTHEOILTEMPERATURE,SOPHISTICATEDFILTERSYSTEMCANIMPROVETHECLEANLINESSOFHYDRAULICOIL,WHICHAREGUARANTEEDHYDRAULICSYSTEMISRELIABLEANDEFFECTIVEMEASURESBELOWTOTHE1STSURCHARGINGMACHINEASANEXAMPLETOILLUSTRATESTARTPUMPMOTOR,THEOILABSORBINGOILBYTHEOILFILTER191,201CLOSINGVALVES,JOINTS211AVOIDVIBRATION,221PUMPS,THEONEWAYVALVE341,361ONEWAYVALVE,71HIGHPRESSUREHOSE,72HIGHPRESSUREHOSE,46THERETURNOFELECTROMAGNETICRELIEFVALVETANKWHENTHEFUELTANKSONTHETRIPONTHE1ST,AT46RELIEFVALVEELECTROMAGNETINTHEELECTROMAGNETICPOWER,621INTHETWOFOURWAYREVERSINGVALVEELECTROMAGNETICPOWER,TOCONTROLOILBY73HIGHPRESSUREHOSE,HIGHPRESSURE79HOSE,48VALVEHYDRAULICVALVETO681,681HYDROMECHANICALVALVEISOPENED,HYDRAULICOIL,ASOILABSORBINGOILFILTER191,201CLOSINGVALVES,JOINTS211AVOIDVIBRATION,221PUMPS,THEONEWAYVALVE341,361VALVE,71HIGHPRESSUREHOSE,72HIGHPRESSUREHOSE,73HIGHPRESSUREHOSE,AONEWAYVALVEPLATE581,591THROTTLEONEWAY,ONEWAY601THROTTLEINTOTHECAVITYUNDERTHEFUELTANK,THEFUELTANKCAVITYOIL681HYDROMECHANICALVALVETOTHETANKFILLED,INCREASEDFUELTANKSATTHISTIME,WHENONTHESTROKEATTHEENDOF46RELIEFVALVEELECTROMAGNETICPOWER,6212STONESOLENOIDVALVEPOWER,HYDRAULICOILBY46ELECTROMAGNETICOVERFLOWTHERETURNVALVETANKPISTONSDOWNWHENOILTANKS,FUELTANKSOFTHEREQUIREMENTSOFTHEOILPRESSURETHANPISTONTOBACCOREACTEDLESSFUELTANKSDETROITPISTONSBARSANDTHEWEIGHTOFTHEFUELTANKDOWNLINKTHEREFORECANBEDIVIDEDINTOFOURSTAGESTHEFIRSTONEPRESSURESTAGEISTHEINITIALSTAGEOFTHEFIRSTDOWNLINK,ANDTHENBECAUSEOFPRESSUREHEAD,ROD,RODORIENTED,SUCHASGREATERWEIGHT,ANDMECHANICALANDELECTRICALEQUIPMENTTOSTARTTRIPAIRISNOTTHERESISTANCETOTOBACCO,TOBACCOPRESSUREHEADSTARTCONTACTSSINCETHENTOBACCOISVERYLOOSELY,ANDSMALLRESISTANCE,THEREBYPRESSUREHEADCOMPLETELYONTHEMSELVESUNDERPRESSURE,PRECAVITYPRESSUREONTHEFUELTANKOFAVACUUMWHEREABOUTSOFTHISSTAGETHATFREESTAGELIQUIDFUELTANKATTHEATMOSPHERICPRESSUREINTHEROLEOFOILTHROUGH681ONTHEFUELTANKINTOTHECAVITY,661ELECTROMAGNETICBALLVALVESFORTWOTOTHREELINKSWILLBE641CARTRIDGEVALVEISOPENED,THEINFERIORVENACAVATHROUGHTHEDIFFERENTIALOILTOTHEFUELTANKCAVITY,THEPUMPPROVIDEDBYTHEOILPRESSURERELIEFVALVETHROUGHTHEELECTROMAGNETIC46INTHEFUELTANKS,ENTEREDTHESUPERIORVENACAVATHESECONDPHASE,DUETOBREATHINGCOMPRESSEDTABLETS,THEFIRSTDOWNWARDPRESSUREGROWINGRESISTANCE,THISRESISTANCEWHENPRESSUREISGREATERTHANTHEFIRST,ANDTHENTHEWEIGHTOFTHEPISTONROD,THECAVITYPRESSURETOTHEFUELTANKPRESSURE,THEPRESSUREATTHISTIMEFIRSTONTHEOILPRESSURETOPUSHTHEPISTONSTODOWNLINKFILLEDAT681VALVECLOSEDCAVITYUNDERTHEOILDIFFERENTIALPROGRESSIVECAVITYTORETURN,THEPUMPPROVIDEDBYTHEOILPRESSURERELIEFVALVEINTHEELECTROMAGNETICTHROUGH46,TOCONTINUEINTOTHECAVITYONTHEFUELTANK,ASTHISPRESSURELESSPRESSUREHYDRAULICPUMPSTATIONTOTHEFUELTANKTOPROVIDETHEMAXIMUMFLOWOFHYDRAULICOILUNDERPRESSURERELATIVELYFASTPACE,SOTHISSTAGE,KNOWNASRAPIDPRESSURESTAGETHETHIRDSTAGE,WHENTHESMOKECOMPRESSEDTOACERTAINEXTENT,THEGRADUALINCREASEINPRESSURE,THENUSINGASLOWERSPEED,ANDPRESSEDTHISSTAGE,KNOWNASSLOWSTAGECAVITYUNDERTHEOILATTHISTIMEDIFFERENTIALPROGRESSIVECAVITYTORETURN,THEPUMPPROVIDEDBYTHEOILPRESSURERELIEFVALVEINTHEELECTROMAGNETICTHROUGH46,TOCONTINUEINTOTHECAVITYONTHEFUELTANK,THERELIEFVALVE351,352OFELECTROMAGNETICPOWER,WILLPUMP2,THEPRESSUREOFTHEOILPUMP4TOUNLOADINGTANKTHEFOURTHSTAGE,WHENPRESSUREHEADPRESSURETOTHEREQUIREDSIZE,THEPRESSUREHEADTOSTAYFORAPERIODOFTIMEINORDERTOPREVENTEXCESSIVESMOKEREBOUNDTHISPHASEKNOWNASTHEPACKINGSTAGEATALL,THESOLENOIDVALVEINTHEPOWE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