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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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
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