液压支架外文翻译液压支架电液控制系统使用中的问题及对策Word下载.docx

液压支架外文翻译液压支架电液控制系统使用中的问题及对策Word下载.docx

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专业：

机械设计制造及其自动化

班级：

机05-3班

指导教师：

Inhydraulicsupportbatterysolutioncontrolsystemusequestionandcountermeasure

ZhangMingli（张命林）

（ZhengzhoucoalminemechanicalgroupLimitedliabilitycompanyHenanZhengzhou450013）

LuoYueyong（罗跃勇）

（BeijingworldMaKebatterysolutioncontrolsystemLimitedcompanyBeijing100013）

Abstract:

Tofurtherdisplaythesupportbatterysolutioncontrolsystem'

sperformance,demonstratesthesupportbatterysolutioncontrolsystem'

ssuperiorityfully,Inmanyyearresearch'

sfoundations,elaboratedsystematicallythesupportbatterysolutioncontrolsystemseveralaspectswhichdisplaysinthedomesticandforeignapplicationconditionandthepresentinfluenceandtherestrictiondomesticproductsupportbatterysolutioncontrolsystemuseandtheperformance.ProposedtheformulationbatterysolutioncontrolsystemGuanyuanpartmanufacturingunifiedstandards,theunificationfilteringelementprofessionstandardandtheestablishmentbatterysolutioncontrolsystemworkingsurfacepreventsthecleanlinesscontrolsystem'

simportancewhichonowninitiativeandthepassivefiltrationprotectionunifies,Establishestheperfectfiltrationprotectionsystem,furtherdisplaysthedomesticallyproducedsupportbatterysolutioncontrolsystemperformance.

Keyword:

Hydraulicsupport;

Batterysolutioncontrolsystem;

Filtrationsystem;

Filterfineness

1、hydraulicsupportbatterysolutioncontrolsystem'

ssuperiority

Thehydraulicsupportbatterysolutioncontrolsystemisbyelectronicinstallationsandthehydrauliccircuitcontrolportionandsoonmonolithicintegratedcircuit,sensoriscomposed,mayneedtocontrolthehydraulicsupportautomaticperformanceaccordingtotheproductionthesystem.

①Behindmayfallthehydraulicsupport,totrytobreakupafight,torisetheframe,thepassagefrontpartconveyer,topulltheconveyer,toreceiveprotectshelpstheboard,toextendprotectshelpstheboard,theatomizationwatersprayandputsgoesagainstmovementsandsooncoaltochangebytheoriginalman-powermanualoperationthebatterysolutionautomaticcontrol,thesequencingtooperate,Canmatchwiththehighlyeffectivecoalminingmachinespeedsuptheworkingsurfaceadvancementspeed,obviouslyenhancestheminingcoalworkingsurfacetheproductionefficiency.

②Mayrealizewithmachinetheautomatedwork,reducestheoperatorswhothelaborintensity,theimprovementworkcondition,reducestheworkingsurface.

③Maysolveunderthespecialgeologicalconditionandthedifficultworkingconditiontechniqueofproductionquestion,forexample,inthethincoalbedworkingsurfacepersonnelareunableundertheconditionwhichoperatesintheworkingsurface,mayrealizethenon-hominizationworkingsurface（towithcoalplowsystemcoordinationuse）.

④Mayrealizethemulti-framessimultaneouslytopushtheconveyerandmaythequotaadvancement,guaranteedthatconveyergentlecurving,middleavoidsthetroughattachmentpointhavingtheoversizedstress,lengthensconveyer'

slife,simultaneouslymayprotectworkingsurfaceconveyer'

sstraight,realizestheworkingsurfacestraightpassage.

⑤Easytorealizethebeltpressuretomovetotheframe,andpreventstherooffailureaccidentregardingtheprotectionroof'

sstabilitytobeadvantageous.

⑥Maycontrolthesupportinitiallytosupportthestrengthwell,obviouslyimprovesthesupportsandprotectionseffectandtheworkingsurfacemanagementlevel.

2、domesticandforeignapplicationsituation

Overseasstartedinthe1970stodevelopthedevelopmenthydraulicsupportwiththeelectricallycontrolledsystem,inthe80senteredthesubstantiveapplicationstage.Tothe90s,thehydraulicsupportbatterysolutionautomaticcontroltechnologyhadbeenalreadymature,theoperatingperformanceandthereliabilityhavebeenabletosatisfytheoperationrequirements,thusdevelopsveryrapidly,becomesproducesthecoalcountrysynthesistopicktheworkingsurfacehydraulicsupport'

sstandardcontrolequipmentdeveloped.Accordingtoincompletestatistics,hadmorethan300synthesestopicktheworkingsurfaceusebatterysolutioncontrolhydraulicsupportatpresent,mainlyconcentratesincountriesandsoonUS,Australia,Germany,China,Slovenia,SouthAfrica,Russia,Poland,Mexico,Canada.AtpresentChinahas131synthesestopicktheworkingsurfaceusebatterysolutioncontrolsystem,thePM31batterysolutioncontrolsystemisthepresentdomesticproducthydraulicsupport'

smainstreambatterysolutioncontrolsystem,occupiesthedomesticproducthydraulicsupportbatterysolutioncontrolsystemmarket80%aboveshares.

3、atpresentfacesquestion,reasonandkeytothesituation

Alongwithbatterysolutioncontrolsystem'

spromotedapplication,alsohasmetsomequestions,isrestrictingthebatterysolutioncontrolsystem'

suseandtheperformancefulldisplay,concretemanifestationinthefollowingseveralaspects:

①Thesystemhydraulicelementfailureratecomparesthecompletesetintroductionsystemtocomparehighsomewhat,speciallyinworkingsurfacetrialproductionandproductioninitialperiod.Inrecentyears,alongwiththehomeproductionprocessinglevel'

senhancement,hydraulicelementsandsoonsupportaswellasbatterysolutioncrossvalvehasrealizedthemanufacturedomestically,carriesonthesystemsassemblytogetherthroughseveralfactories,thishadanewproblem,eachfactoryactsaccordingtotherespectiveproductperformancerequestdeterminationmanufacturestandard,buthasnotconsideredtheentirebatterysolutioncontrolsystem'

sperformancerequirementTakethecleanlinessastheexample,thedomesticsupportintheproductionknewthebatterysolutioncontrolswhenthesupportcontinuestousetheoriginalhandcontrolsystemsupportproductioncleanlinesscontrolstandard,thiscreatesthesupportuseproblem,butbecausethebatterysolutioncontrolcrossvalverequestshightothecleanliness,entiresupportbatterysolutioncontrolsystemuseinitialperiodelectromagnetismfirstpilotvalveandmainvalve,becausethepollutiondamageisserious,thefailurerateincreases.Generallyrequiresperiodoftime（1-2months）aftertheuse,thesystemcanrestorenormally.Thisistakehasagoodfiltrationsystemasapremise.Iffiltrationsysteminthisprocess,becausepollutestheseriousjammingtoexpire,willcreatethehydraulicsystemviciouscircle,thesystemfailureratefurtherincreasesreally,evencreatesthesystemparalysis.Atpresent,urgentneedsaccordingtothebatterysolutioncontrolsystemrequest,theformulationbatterysolutioncontrolsystemGuanyuanpartprocessingmanufacturestandard,thusguaranteestheentirebatterysolutioncontrolsystem'

sreliablesteadyoperation.

②Becausethebatterysolutioncontrolcrossvalvestructureandtheperformanceneedthemediumcleanlinesstobehigh,thesystemnecessary25mprecisionfilter,setthenewrequesttothemediumandtheemulsionallocatedproportion.Alongwiththeseyearsbatterysolutioncontrolsysteminthedomesticpromotedapplication,appearedgenerally,becausetheemulsionchoiceunqualified,thedensityallocatedproportioncausesinthemediumtostickthethickshapematerialseparationunreasonable,sothattheworkingsurfacefiltrationsystemstopsupseriously,thesupportslowinone'

smovementsorcannotact,filterelementbigareajammingexpiration.

③Filtersthesystemstandardnottobeunified,thepartmanufacturedomesticallyfilterelementmanufacturequalityisunqualified,takessubstandardproductsasfineproducts,causesthebatterysolutioncontrolsystemnottobeunstable,failureratehigher.

Atpresentdomesticisnotunifiedtofilterfineness'

sdefinitionvariousprofessionsstandard,evensomefilterelementManufacturerandtheuserdonotknowthefilterfinenessthedefinitionmethod,butinternationallyhasseveraldifferentdefinitionmethodsaboutthefilterfineness,Hasthreekindsapproximately:

1）thehydraulicpressurefiltrationtechnologyusestipulation'

sexperimentpowder（ISOMTD）,theexperimentalstandardisISO16889"

AdoptsCut-and-trymethodManytimes"

.EveryusesISO16889andtheexperimentalpowderisISOMTD,whenstandardfilter'

sprecisionindicateswith（C）.AfterthistestingmethodisjoinsthepilotsystemtheunificationdensityISOMTDpowder,inthefilterupstreamanddownstreamseparatelytakesasamplethetest,andchoosestheappropriateatleast5kindofparticlesizescope,determineswiththepelletcounterandcounts.Theupstreamsomesizepelletnumbercomparesthedownstreamsamesizepelletnumber,ratioisβ.βthevaluetakes5,20,75,200,2000decidesasenterpriseevaluationfilterlevel（thisratioisfilterefficiency）.If5μmpelletupstreamanddownstreamratiois20,thenmayunderstandthatfor5μmthefilterefficiencyis95%.Usuallythelabellingfilterprecisionwrote=20,xfordeterminedβ=20thatparticlesize.

②Filterandsoonautomobile,machineshoptruck,commonequipmentlubrication,fueloilmostlyusetheSAE806bstandard.Itusesthebiggestpelletpassage,theuseglassmicrobeadortheACexperimentpowder,joinsthepowderafterthetestplatformfromthefilterdownstreamsample,thefluidtype（0.8or0.5μm）filtersandcollectsthepelletwiththemilliporefilter,thenexaminedunderthemicroscope.Ifdiscoversthebiggestpelletfor20μm,thenfilterfinenessfor20μm.

③Theaircleaner,thepurificationenvironmentusethefilter,usuallybyweightfilterefficiencynominalfiltrationcharacteristic.Thecustomsaidthatseveral“9”thefieldtestpowderisACFTD.Althoughabove3kindoffilter'

sfilterfinenessdefinesdifferently,butbasedononetestmet