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英文文献HYDRAULICSUPPORTSDEVELOPMENTANDPERSPECTIVE1DOMESTICANDFOREIGNHYDRAULICSUPPORTDEVELOPMENTOUTLINETHEHYDRAULICSUPPORTISTAKETHEHIGHPRESSUREDLIQUIDASAPOWER,BYCERTAINHYDRAULICELEMENTCYLINDER,PIPEACCESSORYONEKINDOFSUPPORTANDTHECONTROLROOFMININGCOALWORKINGSURFACEEQUIPMENTWHICHBECOMESWITHSOMESTEELWORKCOMBINATIONHASTHEINTENSITYTOBEHIGH,THETRAVELINGSPEEDISQUICK,SUPPORTSANDPROTECTIONSPERFORMANCEGOOD,SAFERELIABLEANDSOONCHARACTERISTICSSINCETHE20THCENTURY50S,THEHYDRAULICSUPPORTHASBECOMETHEMININGCOALWORKINGSURFACECOREEQUIPMENTGRADUALLY,INTHEWORLDMAINLYPRODUCEDTHECOALCOUNTRYTOPUTINTHEMASSIVEMANPOWERANDRESOURCESANDTHEFINANCIALRESOURCECARRIESONTHERESEARCHDEVELOPMENTTOITATPRESENT,TENDSTOBEMATURETAKETHEHYDRAULICSUPPORTASTHEMAINBODYSUPPORTSANDPROTECTIONS,INTHEWORLDALREADYTHEMANUFACTURINGSEVERALHUNDREDKINDOFFRAMESANDTHEUPTOTENTHOUSANDKINDOFMODELSHYDRAULICSUPPORT,MEETSEACHKINDOFCOALBEDMININGSUPPORTSANDPROTECTIONSNEEDONTHECENTURY60S,OURCOUNTRYONCEHADALSODEVELOPED10KINDOFHYDRAULICSUPPORTS,FORVARIOUSREASONSHASNOTOBTAINEDTHEPROMOTEDAPPLICATION,THEHYDRAULICSUPPORTISINTHEDEVELOPMENT,THELABORATORYSTAGE;THE70SFROMBRITAIN,GERMANY,POLAND,THEFORMERSOVIETUNIONANDSOONMAINLYPRODUCETHECOALCOUNTRYTOINTRODUCESEVERAL10SETOFHYDRAULICSUPPORTSSUCCESSIVELYAFTERTHEUNCEASINGEXPLORATION,THEUSE,THEDIGESTIONANDTHESUMMARY,MAKEEACHTYPETHESUPPORT,ITISTHEBEGINNINGWHICHTHEDOMESTICPRODUCTHYDRAULICSUPPORTDEVELOPS;THE80SHYDRAULICSUPPORTRESEARCHANDDEVELOPMENTAREINTHEINNOVATIONTOENHANCETHESTAGE,DEVELOPS30KINDOFNEWFRAMEONEAFTERANOTHER,MAKESTHEZZSERIES,THEXYSERIES,THEZDSERIESANDSOONDIFFERENTSPECIFICATION,ANDWIDELYUSESINTHESTATEOWNEDLARGEANDMIDDLESCALECOALMINES,OBTAINSTHEGOODECONOMICEFFICIENCY;90SSPECIALHYDRAULICSUPPORTSDEVELOPMENTOBTAINSTHERAPIDLYEXPAND,THEMECHANIZEDSHOPNETSUPPORT,THEWATERGRANULATEDSUBSTANCEBACKFILLSUPPORT,THEREASONSUPPORT,THEFORCESUPPORT,PUTSGOESAGAINSTTHECOALSUPPORTANDSOONTOBEPUBLISHEDONEAFTERANOTHER;THEPRESENTCENTURYALONGWITHTHECOMPUTERTECHNOLOGY,THEAUTOMATEDTECHNOLOGYSPOPULARIZATIONANDTHEAPPLICATION,HYDRAULICSUPPORTSCONTROLMAKESTHEBREAKTHROUGHPROGRESS,GRADUALLYTOTHEPROGRAMMEDCONTROL,THENUMERICALCONTROL,THEREMOTECONTROLANDTHEAUTOMATEDCONTROLMAKESGREATSTRIDESFORWARD2DOMESTICANDFOREIGNHYDRAULICSUPPORTDIFFERENCETHEDOMESTICALLYPRODUCEDSUPPORTINTHETECHNIQUEOFMANUFACTURE,THEMATERIALQUALITYPERFORMANCE,THEPROCESSINGCRAFT,THECONTROLSYSTEMANDINTHESEALINGPROPERTYCOMPARESWITHTHEOVERSEASADVANCEDCOUNTRIESHASTHEVERYBIGDISPARITY21PROCESSINGMANUFACTUREASPECTACCORDINGTOTHERELATEDSYNTHESISPICKSTHEENGINEERSANDTECHNICIANSTOREFLECTTHATTHEDOMESTICPRODUCTHYDRAULICSUPPORTSPROCESSINGTECHNOLOGY,THESERVICELIFE,THEOPERATIONALPERFORMANCE,USEDTHEMATERIALQUALITYSOFARNOTYETTOACHIEVEIN1979TOINTRODUCE100SETOFSUPPORTSTECHNICALLEVELSIFSTRUCTURALMATERIALGERMANYUSESTHEST52MATERIALITSYIELDSTRENGTHIS500MPA,BUTOURCOUNTRYUSES16MNMATERIALYIELDSTRENGTHISONLY350MPA;VALVECLASSOVERSEASHASUSEDTHECOPPERALLOYVALVESHELLANDTHEHIGHSTRENGTHSTAINLESSSTEELVALVECORE,OURCOUNTRYHASBEENTHE45STEELADDSTHESUPERFICIALHEATTREATMENT;INPROCESSINGCRAFTTHEOVERSEASCYLINDERENDOPHRAGMISDUPLICATEPLATES,THEDOMESTICPRODUCTFORDOESNOTPLATE,CAUSESTHECOLUMNPREMATURETOPRESENTTHESPOTINTHEUSEPROCESS,SCRATCHESANDSOONSEALSTOLEAKTHEFLUIDPHENOMENON,AFFECTSTHESUPPORTSANDPROTECTIONSEFFECTTHEDOMESTICPRODUCTHYDRAULICSUPPORTANDTHEOVERSEASPRODUCTIONSHYDRAULICSUPPORTCOMPARESTHEAVERAGETOREDUCE23SERVICELIVES22CONTROLSYSTEMASPECTTHEDOMESTICPRODUCTHYDRAULICSUPPORTCONTROLSYSTEMSRESEARCHANDDEVELOPMENTAREATBACKWARDNESSCONDITION,RESTRICTEDTHESUPPORTTOMOVESERIOUSLYSUPPOSESTHESPEEDTHEENHANCEMENTANDTHESYNTHESISPICKSTHEECONOMICEFFICIENCYTHEDISPLAYINTHEWORLDSEVERALMAINLYPRODUCETHECOALGREATNATIONTOENHANCETHESUPPORTCONTROLSYSTEMACHIEVEMENTTHESYNTHESISTOPICKTHROUGHOUTTHEECONOMICEFFICIENCYTHEIMPORTANTMEANSTHATTHE20THCENTURY60SUSEMANUALCONTROLSTHEOPERATINGSYSTEMSTRAIGHT;THE70SUSETHEFORERUNNERCONTROLSYSTEM,ALONGWITHITBRITAINFIRSTPROPOSEDTHATTHEDEVELOPMENTBATTERYSOLUTIONCONTROLSYSTEM,THE80STENDSTOBEMATURE;THE90SLADDERCOMPANYDEVELOPSTHEENTIREWORKINGSURFACEBATTERYSOLUTIONCONTROLSYSTEM,FOLLOWSWISTERTOCUTDOWNLIYATHEBEIRUITECOMPANYTODEVELOPMOREADVANCEDPM3,PTHEM4BATTERYSOLUTIONCONTROLSYSTEMPRESENTCOUNTRIESANDSOONUS,GERMANY,BRITAIN,AUSTRALIABASICALLYALLARETHEPROGRAMMABLEBATTERYSOLUTIONCONTROLS,BUTOURCOUNTRYSTILLUSEDTHEHANDCONTROLSYSTEM23HYDRAULICELEMENTASPECTHYDRAULICELEMENTSRESEARCHANDDEVELOPMENTSPEEDLAGSBYFARINTHEHYDRAULICSUPPORTNEEDTODEVELOPHYDRAULICSUPPORTSRELIABILITYMAINLYRELIESONHYDRAULICELEMENTSRELIABILITY,THEHYDRAULICSUPPORTINTHECOALMINEPRODUCTIONAPPLIESWHETHERTOSUCCEED,THEKEYLIESINHYDRAULICELEMENTSTECHNICALPERFORMANCEWHETHERTOMEETTHEREQUIREMENTSOVERSEASUSESTHEGREATCURRENTCAPACITYSAFETYVALVE,THEFLUIDTOCONTROLTHECONEWAYVALVE,THECUTOFFVALVEATPRESENT,INITIALLYTOSUPPORTTHESTRENGTHMAINTAININGVALVEANDTHECOLUMNRETURNSTOTHEFLUIDVALVEFASTTOHYDRAULICELEMENTSSTRUCTURALSTYLE,THEGEOMETRYSIZE,THECHOICEOFMATERIAL,THEHEATTREATMENTMETHODANDTHESURFACETREATMENTANDSOONVARIOUSASPECTSHAVECONDUCTEDTHETHOROUGHRESEARCHANDTHEDEVELOPMENTDEVELOPSONEBATCHOFSEALINGPROPERTYTOBEGOOD,THES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