同步马达PLD-02-T-E

GearflowdividersPLD02TEPRESSUREMax.continuous250barMax.peak280barDISPLACEMENTSFrom2cm3/revTo32,6cm3/revlModulardesignlAccuratedivisionofflowlCompactoveralldimensionlBuilt-inreliefvalve2002D024-002PolarisGENERALFEATURESModernmachinerywithincreasinglycomplexcircuitsoftenneedscombinationsofseparateandindepen-dentmovements.POLARIS10andPOLARIS20flowdividersprovidetechnicallyadvanced,lowcostpowertransmissionandsolveapplicationproblemswhereverhydraulicflowhasdivided.Inlinewithourpolicyofsimplifyingthedesignofhydrauliccircuits,ourflowdividershavereliefvalvesbuiltintolimitpressureandpreventcavitation.Thesecomponentspermithydrauliccircuitstobecleverlyoptimisedandreduceinstalla-tioncosts.ThePOLARISflowdividersaretwoormoresectiondividerswithacommoninternalconnectingshaft.Thismaintainsaconstantratiobetweentheflowsthrougheachsectioninaccordancewithsectiondi-splacement.Theoreticalworkingofrotaryflowdividersdonotdissipateenergyinfactiftheoutletpressureofonesectiondropsbelowinputpressure,thatsectionoperatesasamotorandtakesenergyfromthefluid.Thisenergyisnotwastedbuttransferredbythecommonshafttotheothersectionswhichoperateaspumpsandthereforeneedoutletpressuretobegreaterthaninletpressure.Inworkingconditions,overallefficien-ciesdependonthesumofthesinglesectionsefficiency.Theseproductscanthereforebeusedasflowequa-lizers,flowdividersandpressureintensifiersasshowninthetablebelow.FluidMineraloilbasedhydraulicfluidstoDIN51524.Forotherfluidspleaseconsultoursalesdepartment.Fluidtemperaturerange[°C]-25÷+80withBunaNseals-25÷+110withVitonVsealsFluidviscosityrange[mm2/s][cSt]12÷100recommendedUpto750permittedFilteringrequirementΔp200barΔp200barContaminationclassNAS1638810ContaminationclassISO440617/1419/16Achievedwithfilterβx=7510μm25μmOutletpressureSectionswithsamedisplacementSectionswithdifferentdisplacementSameFlowequalizersFlowdividersDifferentFlowequalizersFlowdividersPressureintensifiersD024-0020023PolarisReliefvalvesallowtheactuatorstorealignattheendofeachcycleinbothflowdirections.Asanexamplewhenthecylindersextend,theymaynotallreachtheirendstopsexactlyatthesametime.Inthiscaseassoonasonecylinderreachesitsstop,thereliefvalveinthatsectiondirectsfluidtotankuntilalltheothercyl-indersreachtheirstops.Whileretroactingthereliefvalveactsascheckvalveandopenstopreventcavita-tion.Reliefsettingsvalveandtheiridentificationcodearelistedinthetablebelow.StampcodeΔpnominalsetting(10l/min)Δpminimumbeginopeningvalve[bar][bar]343532450462260542370666807671009617120116812512091401352615014510160155111751703518017412190184332061991421020315230222162502422726025220280271Adjustablefeliefvalvesareavailableonrequest.GENERALFEATURESOFRELIEFVALVESTIGHTENINGTORQUE50Nm4002D024-002PolarisTypeDisplacementMax.outletpressureMax.outletΔpbetweensections(1)SpeedFlowpersectionp1p2min.max.min.max.cm3/revbarbarmin-1l/minPLD10•22250280200125042002,658,9PLD10•3,153,1250280200120539903,9913,2PLD10•44250280200117538404,9816,2PLD10•54,9250280200114036806,0419,5PLD10•6,36,2250280200110035007,2923,2MAX.FLOWFORINLETSECTION35l/minGENERALDATAPLD10p2=Max.peakpressurep1=Max.continuouspressure(1):Pressureintensifierscanworkathigherpressurebetweensections.Forworkingconditionsoutsidetherecommendedlimitsshowninthetable,pleaseconsultoursalesdepartment.D024-0020025PolarisGENERALDATAPLD20TypeDisplacementMax.outletpressureMax.outletΔpbetweensections(1)SpeedFlowpersectionp1p2min.max.min.max.cm3/revbarbarmin-1l/minPLD20•44,8250280200125041006,1620,2PLD20•6,36,5250280200123539708,1226,1PLD20•88,32502802001220385010,0531,65PLD20•11,211,12502802001200366013,4240,85PLD20•1414,42502802001175346017,0350,02PLD20•1616,62002302001160333519,4755,88PLD20•2020,82002302001130312523,8365,7PLD20•25262002302001100290028,976,21PLD20•31,532,62002302001060266034,8487,39MAX.FLOWFORINLETSECTION80l/minp2=Max.peakpressurep1=Max.continuouspressure(1):Pressureintensifierscanworkathigherpressurebetweensections.Forworkingconditionsoutsidetherecommendedlimitsshowninthetable,pleaseconsultoursalesdepartment.6002D024-002PolarisFlowaccuracyequalizersiswithin±2%iftheyarerotatingintherecommendedspeedrangeandthediffer-entialpressurebetweensectionsislessthan100bar.Whenseveralsingleactingcylindersareoperatedto-gether,actingonloadshavenotsufficientmasstowinthecircuit’sresistance,werecommendafurthergearsectionactingasamotorinordertoguaranteethecylindersretract.Thedisplacementofthismotorshouldberoughlyequaltothesumofthedisplacementsoftheothersections.Twotypicalcircuitdiagramsofappli-cationswhereflowequalizersareutilizedwillbefoundonpage10.DISPLACEMENTSELECTIONGUIDEEXAMPLEAssumethatitisnecessarytosupplypowertotwocylindersthatrequireaflowrateof40[l/min]each.Forsimplicity'ssakewewillignorepressurelossesandthecompressionfactorofthefluid.Thepumpmustde-liveraflowequalto:Q0=Q1+Q2=80[l/min].Tofindthedisplacementofthetwosectionsoftheflowequal-izer,simplylocatetheflowrate80[l/min]ontheXaxisandthenascendverticallyuntilthelinecorrespondingtothenumberofsections(2)isencountered;nowtraceahorizontallinetotherightuntilencounteringthelinesreferringto