外文翻译液压支架的发展与前瞻精品.docx

外文翻译液压支架的发展与前瞻精品.docx

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外文翻译液压支架的发展与前瞻精品

英文文献

Hydraulicsupport'sdevelopmentandperspective

1domesticandforeignhydraulicsupportdevelopmentoutline

Thehydraulicsupportistakethehigh-pressuredliquidasapower,bycertainhydraulicelement（cylinder,pipeaccessory）onekindofsupportandthecontrolroofminingcoalworkingsurfaceequipmentwhichbecomeswithsomesteelworkcombination.Hastheintensitytobehigh,thetravelingspeedisquick,supportsandprotectionsperformancegood,safereliableandsooncharacteristics.Sincethe20thcentury50's,thehydraulicsupporthasbecometheminingcoalworkingsurfacecoreequipmentgradually,intheworldmainlyproducedthecoalcountrytoputinthemassivemanpowerandresourcesandthefinancialresourcecarriesontheresearchdevelopmenttoit.Atpresent,tendstobematuretakethehydraulicsupportasthemainbodysupportsandprotections,intheworldalreadythemanufacturingseveralhundredkindofframesandtheuptotenthousandkindofmodel'shydraulicsupport,meetseachkindofcoalbedminingsupportsandprotectionsneed.

Onthecentury60's,ourcountryoncehadalsodeveloped10kindofhydraulicsupports,forvariousreasonshasnotobtainedthepromotedapplication,thehydraulicsupportisinthedevelopment,thelaboratorystage;the70'sfromBritain,Germany,Poland,theformerSovietUnionandsoonmainlyproducethecoalcountrytointroduceseveral10setofhydraulicsupportssuccessively.Aftertheunceasingexploration,theuse,thedigestionandthesummary,makeeachtypethesupport,itisthebeginningwhichthedomesticproducthydraulicsupportdevelops;the80'shydraulicsupportresearchanddevelopmentareintheinnovationtoenhancethestage,develops30kindofnewframeoneafteranother,makestheZZseries,theXYseries,theZDseriesandsoondifferentspecification,andwidelyusesinthestate-ownedlargeandmiddlescalecoalmines,obtainsthegoodeconomicefficiency;90'sspecialhydraulicsupport'sdevelopmentobtainstherapidlyexpand,themechanizedshopnetsupport,thewatergranulatedsubstancebackfillsupport,thereasonsupport,theforcesupport,putsgoesagainstthecoalsupportandsoontobepublishedoneafteranother;Thepresentcenturyalongwiththecomputertechnology,theautomatedtechnology'spopularizationandtheapplication,hydraulicsupport'scontrolmakesthebreakthroughprogress,graduallytotheprogrammedcontrol,thenumericalcontrol,theremotecontrolandtheautomatedcontrolmakesgreatstridesforward.

2Domesticandforeignhydraulicsupportdifference

Thedomesticallyproducedsupportinthetechniqueofmanufacture,thematerialqualityperformance,theprocessingcraft,thecontrolsystemandinthesealingpropertycompareswiththeoverseasadvancedcountrieshastheverybigdisparity.

2.1Processingmanufactureaspect

Accordingtotherelatedsynthesispickstheengineersandtechnicianstoreflectthatthedomesticproducthydraulicsupport'sprocessingtechnology,theservicelife,theoperationalperformance,usedthematerialqualitysofarnotyettoachievein1979tointroduce100setofsupport'stechnicallevels.Ifstructuralmaterial:

GermanyusestheST52materialitsyieldstrengthis500MPa,butourcountryuses16Mnmaterialyieldstrengthisonly350MPa;Valveclass:

Overseashasusedthecopperalloyvalveshellandthehighstrengthstainlesssteelvalvecore,ourcountryhasbeenthe45#steeladdsthesuperficialheattreatment;Inprocessingcraft:

Theoverseascylinderendophragmisduplicateplates,thedomesticproductfordoesnotplate,causesthecolumnprematuretopresentthespotintheuseprocess,scratchesandsoonsealstoleakthefluidphenomenon,affectsthesupportsandprotectionseffect.Thedomesticproducthydraulicsupportandtheoverseasproduction'shydraulicsupportcomparestheaveragetoreduce2~3servicelives.

2.2Controlsystemaspect

Thedomesticproducthydraulicsupportcontrolsystem'sresearchanddevelopmentareatbackwardnesscondition,restrictedthesupporttomoveseriouslysupposesthespeedtheenhancementandthesynthesispickstheeconomicefficiencythedisplay.Intheworldseveralmainlyproducethecoalgreatnationtoenhancethesupportcontrolsystemachievementthesynthesistopickthroughouttheeconomicefficiencytheimportantmeansthatthe20thcentury60'susemanualcontrolstheoperatingsystemstraight;the70'susetheforerunnercontrolsystem,alongwithitBritainfirstproposedthatthedevelopmentbatterysolutioncontrolsystem,the80'stendstobemature;the90'sladdercompanydevelopstheentireworkingsurfacebatterysolutioncontrolsystem,followsWistertocutdownLiya-theBeiruitecompanytodevelopmoreadvancedP-M3,P-theM4batterysolutioncontrolsystem.PresentcountriesandsoonUS,Germany,Britain,Australiabasicallyallaretheprogrammablebatterysolutioncontrols,butourcountrystillusedthehandcontrolsystem.

2.3Hydraulicelementaspect

Hydraulicelement'sresearchanddevelopmentspeedlagsbyfarinthehydraulicsupportneedtodevelop.Hydraulicsupport'sreliabilitymainlyreliesonhydraulicelement'sreliability,thehydraulicsupportinthecoalmineproductionapplieswhethertosucceed,thekeyliesinhydraulicelement'stechnicalperformancewhethertomeettherequirements.Overseasusesthegreatcurrentcapacitysafetyvalve,thefluidtocontrolthecone-wayvalve,thecut-offvalveatpresent,initiallytosupportthestrengthmaintainingvalveandthecolumnreturnstothefluidvalvefast.Tohydraulicelement'sstructuralstyle,thegeometrysize,thechoiceofmaterial,theheattreatmentmethodandthesurfacetreatmentandsoonvariousaspectshaveconductedthethoroughresearchandthedevelopment.Developsonebatchofsealingpropertytobegood,thesensitivityhigh,enterstherowoffluidabilityinabigway,theanti-impactloadstrongeachkindofhydraulicelement,adaptsthehydraulicsupportoperatingperformancerequest.Butourcountrylagstothiskindofhydraulicelementresearchanddevelopment,atpresentstillcontinuedtouseonthecentury80'sproducts,hasnotformedthehydraulicelementuniversalization,theseriation,thestandardization.

3Hydraulicsupportprospectsfordevelopmentforecast

Inviewofthefactthatscience'sandtechnology'shighspeeddevelopment,newtechnology,newcraft,newmethod,thenewmaterialwillapplyandthecomputertechnologyunprecedentedexpansionunceasingly,hydraulicsupport'sfuturedevelopmenthastheveryattractiveprospect

3.1Thedesignidea'srenewal,thehydraulicsupportdevelopsarevolution

Mustconsidertheenvironmentinthehydraulicsupportdesigntheattribute.Becausehydraulicsupport'sworkingconditionisbad,thehuman,machinetheenvironmentreciprocityquestionappearsmoreimportant.Thegreendesignisthechoiceofmaterial,theproductmix,thetechnique,theoutwardappearancemodellingandcolormatchingaccordingtocertainrule,adoptsartisticthemethodtoperformtheingeniousfusion,manifeststheman-machineenvironmentsystem'sharmoniousunificationfully.Theunwieldyhydraulicsupportimagesafe,reliable,easytobeserviced,consumesenergy,thehighefficiency,thehandsomeappearancetosubstitutelowly.Thiskindofgreendesign,itisnotonlyfearedtheenvironmentandtheresourcesbothmustmeettheeconomicdevelopmentneeds,andmustmeetthehumansurvivaldevelopmentneeds,isthehumanitysustainabledevelopmentinsupportdesignmanifestation.Forexample:

Thehydraulicsupportusesthemulti-objectivefuzzydesigninthedesignprocess,requeststosupportthestrengthtobebig,movestoaspeedtobequick,theweightislight,timberwoodfewandsoon,eachgoaldeterminedthatafunction,namelymanyprojectobjectivefunction,thenthecombinationoptimizes,determinationpreferredplan.

3.2Willadoptthepurewaterhydraulictechnique,thehydraulicsupportwillbecomethegreenmachinery

Thepurewaterhydraulictechniqueisthehydraulicpressuredomaindevelopmentfront.Itnotonlyhasgoodanti-burnsthenature,theradiation,moreoverthepricetobealsocheap,doesnothavethepollution,forlongthehydraulicsupportworksunderthesurfacelayer,becausetheuseactuatingmediumistheemulsion,andhasmanychemicaladditives（emulsifier,rust-preventingagent,antiseptic,couplingagentandsoon）,themicroenvironmentalpollutionisveryserioustothesurfacebelow,therefore,thehydraulicsupportusepurewaterhydraulictechnique,toreducesthecoalminetheproductioncost,protectstheenvironmentisbeneficial,andmayimprovetheminepitgreatlytheworkandthesafetycondition.Progressesunceasinglyalongwiththesociety,thepeoplehadahigherrequesttothedependantsurvival'senvironment,hopedthathasasecurity,theenvironmentalprotection,thehighlycivilizedgreenenvironment.Thetimerequestsummonedthehydraulicpressuretransmission（tooriginin1605discoveredthatthePascal'slaw）thisancientbrand-newtechnologyresurfaced,andreceivedtheworldtheattention.Atpresent,theWesterncountrytheconcentrateeffortstostudythistechnology,andmakesthebreakthroughprogress.Forexample:

Thelubricationattritionquestion,selectsreasonablyrubsthevice-material,hastheengineeringplastics,thestructureceramics,thehighpolymermaterial,rustpreventionanticorrosioncoatingandsoon.Thestructureceramicshavetheresistancetowear,theanti-cavitationperformanceisgood,thegoodchemicalstability,characteristicsandsoonlowfrictionfactor,enjoythefavor.Replacesthepartialmetallicmaterialinthehydraulicelementwiththestructureceramics,bigimprovementitsperf