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1、液压伺服系统设计（Designofhydraulicservosystem）DesignofhydraulicservosystemInthehydraulicservosystemwithhydraulicservovalveasinputsignalconversionandamplificationdevice.Thehydraulicservosystemwithsmallpowerinputsignal,hydrauliccontrolpowercanoutput(flowandpressure),andcanobtainhighcontrolprec
2、isionandfastresponsespeed.Thepositioncontrol,speedcontrolthegeneraldesignstepsofforcecontrol,threekindsofhydraulicservosystemareasfollows:1)cleardesignrequirements:fullyunderstandthedesigntasksproposedprocess,structureandtimelyperformancerequirementsofthesystem,andtheloadconditionssh
3、ouldbeanalyzedindetail2)drawupthecontrolschemeanddrawtheschematicdiagramofthesystem3)staticcalculation:determinetheparametersofpowercomponents,selectfeedbackcomponentsandotherelectricalcomponents4)dynamiccalculation:determinethetransferfunctionofthesystem,drawingonHuanbodetu,stabilit
4、yanalysis,calculationofdynamicperformanceindex.R>5)checktheprecisionandperformanceindicators,thechoiceofcorrectionandcorrectionofdesignelements.6)selecthydraulicenergyandcorrespondingaccessories7)completetheexecutionelementandthehydraulicenergyconstructiondesignThecontentofthischapte
5、rismainlyinaccordancewiththeabovedesignsteps,toillustratethedesignprincipleofhydraulicservosystemandintroducesthedesigncalculationmethod.Thepositioncontrolsystemisthemostbasicandmostwidelyused,sothiswillbeavalvecontrolledhydrauliccylinderpositionsystem.4.1comprehensiveunderstandingof
6、designrequirements4.1.1fullyunderstandthecontrolledobjectHydraulicservocontrolsystemisapartoftheobjectofthehost,itmustmeettheneedsofthehostoftheprocessandstructurerequirements.Suchashydraulicscrewdownbypositioncontrolsystem,butshouldbeabletowithstandthemaximumload,meettherollingmillr
7、ollgapadjustmentstroke,adjustthespeedandcontrolprecisionotherrequirements,actuator-pressurehydrauliccylinderinsizeisalsoaffectedbytherollingmillhousingwindowsizeconstraint,thestructuremustalsomeettherequirementssuchasconvenientrollerreplacement.Todesignagoodcontrolsystem,fullattentio
8、nmustbepaidt
