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1、掘进机机械类外文文献翻译、中英文翻译外文原文：TheverticalBoom-typeRoadheaderdesign1IntroductionMechanicaldesignisintheprocessofproductdesignandanimportantpartofthemainlinks,itisfollowedinprogrammedesignafterthedesignwork.TheverticalBoom-typeroadheadertheroadheadertotheoveralldesignofthemeritsofcompletemachin
2、eplayadecisiverole,andthedecisionoftheassembly,thesystem,coordinationbetweenthevariouscomponentsoftheunityandmatch,toobtainthehigh-endperformanceandoverallbettereconomicefficiencytechnology.Roadheaderdesign,includingthefollowing:1Accordingtodesignprojectdescriptionchoicetypeandvariousc
3、ellularconstructionpattern2Decidesthecompletemachinethemaintechnicalperformanceparameter,Includingsizeparameter,heavyparameter,theparameterofmovementandthetechnicaleconomyreferparameter,3Accordingtosystemdesignperformancerequirement,definitecompletemachinesystemcompositionandbetweenthe
4、mmatchaswellaseachpartmaintechnicalsenateparameter,4Thenecessarywhole,andthemappingoftransmission,hydraulic,electroniccontrolsystems,andotherplans.2theselectedmodelsandvariouscomponentsandstructuraltype,drive,andtheoveralllayoutofthereasonableIndeterminingthecontent,firsttaskshouldbede
5、signedtomeetthecontents,especiallytheusersofthemaindemandsoftheinvestigation,thetwosidesexchangedviewsrepeatedly,tosatisfybothusersorsuperiorconditions,canbettermeettheproductdevelopmentoftheoverallplan.2.1theselectedmodelsAccordingtoroadheaderuse,forthecoalminetunnelboringorusedforoth
6、ersectorsoftheworks,roadheaderworkingconditionsforcuttingcoalroadwayorsemi-CoalLane,thecompressivestrengthofcoalandrockone-wayorthevalueofplattscoefficientfandtherockabrasionfactor.AtthesametimethecontrollineshouldbesuperscriptMT138~1995"cantileveredRoadheadertypesandparameters",accord
7、ingtocuttingcoalandrockthebiggestone-waycompressivestrength,thetypeofselectedmodels.2.2thestructureofthevariouscomponents,thewaythedriveridentifiedRoadheaderbycuttinggeneralagencies,shippingagencies,walking,hydraulicsystem,electroniccontrolsystemsandauxiliarydevicessuchasdustremovald
