插装式进水阀芯流量-位移特性的结构优化.pdf

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1、机床与液压Oct．2012HydromechatronicsEngineeringv01．40No．19DOI：10．3969／j．issn．1001—3881．2012．19．O11StructuralOptimizationabouttheFlow．displacementPropertyfortheInletValveofHydraulicPressFENGJingchang，QUANLingxiaoh，XUYancui，KONGXiangdongJ．nshanUniveni~，Qinhuangdao066004，China

2、；2．Ⅳ0rthernHeavyIndustriesGroupCo．LtdShenyang110141，ChinaAbstract：Thehydraulicpresscontrolstheflowofhigh．pressurewaterintothepressbythecar-tridgeinletvalveinthemaindistributor．Theflow·displacementpropertyoftheinletvalveshasasignificantefectonthedynamiccharacteristics，

3、controlprecisionandforgingeficiency．Are·search，whichincludesthemethodsofthemathematicaImodeling．theanalysisonflowfieldbyFluent，andMatlabnumericaIcomputation．isdonetothemostcommonlyusedcaflridgeinletvalvesInthispaper．Theresearchoptimizestheflow-displacementnonlinearity

4、andanalysestheefe~oftheresultsoftheoptimizationonthepressureandspeedfields．Theresultsshowthatthemethodcanmaketheflow-displacementpropertyoftheca~ridgewatervalvesbeapproxi·mateIinearstateand，atthesametime，makeitspressureandvelocitydistributionsmoreuni．form．Theresearchp

5、rovidesanewtheoryandtechnologyfortheoptimizationofflow．displace．mentpropertyofthegenerallyusedinletvalvesofthehydraulicpress．Keywords：hydraulicpress，inletvalve，flow-displacementproperty，theanalysisonflowfieldTheworkingprocessisrealizedbyt}lemaindisteristicsandforgingp

6、recisionofthehydraulicpress．tributorwhichcanbedividedintofour．valvedistribu．Becauseofthehighpressureandlargeflowoftheop—tor，six—valvedistributorandeight．valvedistributor．cratingsystemofthehydraulicpress，theinletvalvesetc．ThemaindistributorismadeupofinletValVeSusethest

7、ructureofthepoppetvalve．andoutletvalves．TheinletvalvesandoutletvalvesTheflow—displacementpropertyoftheinletvalvecanbeindiferentstatesofopeningandclosingbyisthemainfactortodeterminetheforgingspeedandcontrollingandtestingtherotatingangleoftherota—thecontrolprecisionofth

8、ehydraulicpress．Therearetionrockshaft．whichcontroltheemptytravelde．severalrowsofholesonthevalvecupoftheinletcrease，pressurea