电动葫芦起重机参数英文.docx
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电动葫芦起重机参数英文
电动葫芦起重机参数(英文)
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3.15HoistingEquipment
3.15.1Scopeofsupplyanddesignparameters
1.Thetenderershouldbeaccordingtotherequirementsonprovidetheequipmenttheengineeringneeded,includingthetravelmechanismandhoistingequipment,suchas:
mainframe,motor,electricalblock,wirecable,fixedpart,accessories,matchedelectriccableetc.,itshouldbeguaranteedthedesign,manufacture,check,inspectionandsoonofabovementionedequipmentshouldcomplythecoderequirement;meanwhilethetenderershouldprovidecorrespondingsiteservice,includingtheinstallationguidanceandadjustmentofthehoistingequipment.
Electricmono-sparsuspensionhoistcranetechnicalperformancelist
Installationsite
Roomofgrillscreen
Roomofchemicaladding
Roomoffilterbasin
Type
Electrichoist
Electrichoist
Electrichoist
Quantity
1
1
1
Purpose
Equipmentoverhaul
Equipmentoverhaul
Equipmentoverhaul
Ratedloadweight(t)
3
3
3
Hoistingheight(m)
12
6
12
Modeofoperation
Groundoperation
Groundoperation
Groundoperation
3.15.2TechnicalRequirements
1.Inordertoguaranteethestandardizationoftheproductsontheaspectsofoperation,maintenanceandspareparts,requiringalltheequipmentandcomponentofsametypeshouldbetheproductsofthesamemanufactureraspossible.Alltheelectric-drivehoistingequipmentshouldsetpowerswitchontheground.
2.Allequipmentandproductshouldhaveperformanceinspectionbeforeexworks;thetenderershouldprovidethefollowing:
exworksproductcertificateofinspection,approvedcertificateforproduct,productinstruction,packinglist,andlistofaccessoriesandspareparts.
3.Alltheelectricdrivingdeviceofthehoistingequipmentshouldbecompletematchedbythehoistingequipmentmanufacturer,tomakeitformcompletehoistingequipment.
3.15.2Materialtobesubmitted
Thetenderershouldsubmitthefollowinginformation,butnotlimitedtothefollowing:
(1)Theconcernedtechnicaldataandelectricschematicdiagramofelectricmachineandelectricity;
(2)Installationinstruction,equipmentoperationandservicemanual;
(3)Qualificationcertificateofmanufacturerandachievement;
(4)Biddingtechnicalitydescription(design,structure,materialetc.)andsampleediting;
(5)Manufacturingandqualityassurancemeasures;
(6)Debugginganddetectionrequirementbeforetest-run;
(7)Submittingfiveuserscertificatesofsuccessfuloperationrunningdomesticallyinrecentfiveyears;
(8)ThehoistingequipmentmanufacturinglicenseissuedbyDomesticLaborDepartment;
3.15.3Basicrequirements
1.Referencestandards
Thedesign,manufacture,inspection,packaging,transportationandinstallationprocessoftheproductshouldbeconsistentwithISO,IECinternationalstandardsandtheequivalentstandardssuchasGB,JB,JIS,DIN,ANCI,etc.(Thesestandardsshouldbetheupdatedstandardsthatarenotbeinvalidated))
2.Othertechnicalrequirements
(1)Thehoistingequipmentsuppliedbythetenderershouldincludetheelectricmono-sparsuspensionhoistcrane,electricalblockandtheconcernedaccessoriesforconnection.
(2)Thecompleteelectricmotorandthespeedreducershouldbesuppliedbythemanufacturerintheformofcompleteandmatching.
(3)Theequipmentfailurefreeoperationtimeshouldnotbelessthan10,000hours;theelectricapparatus’servicelifeshouldnotbelessthan3years,thespeedreducerandbearingservicelifeshouldbe10years,thecoatingserviceshouldbeover5years;thecompletemachineservicelifeshouldbemorethan25years.
(4)Anti-corrosionofequipment:
thesurfacede-rustinggradeofallcarbonsteelcomponentsshouldcomplywiththeSa2.5gradestandardstipulatedinGB8923-88
(5)Themanufacturershouldprovide1setspecialtoolsandsparepartsfortheequipmentinstallationandmaintenance.
(6)NameplateandLabel
ItshouldbefastenedforAllequipmentwiththestainlesssteelnameplateoffollowingtechnicalspecificationcontents:
Number,Model,Power,maintechnicalparameter,weight,manufacturer,dateofmanufactureetc.
(7)MaterialandProcess
Allmaterialsmustbethehighqualitymaterialwithindicatedgradeandspecies,theseshouldbethenewestmaterialusedbythemanufacturer,nottherejectedintodisuse,andthemanufacturingprocessshouldbethecontemporaryoptimalitycriteria.
(8)Thetenderershouldbeinchargetoguidetheinstallationoftheequipment,toaccomplishthedebuggingworkoftheequipmentwithintheperiodstipulatedbytheconstructionparty.
3.15.4Structuralrequirements
(1)TravelingMechanismBody
Thebodyisrigidstructure,forbiddenanyabnormalbend.
Thetravelingmechanismdrivingreliesontheelectricmotorthroughspeedreducertodrivethetrolley’sdrivingshaft.
Themono-sparbodyshouldhavearollerstabilizer,topreventthetravelingmechanismfrominclineduringoperation.
Thematerialofthetravelingmechanismwheelissteelrollingorforgedsteelheattreated;thehardnessofthetreadofthewheelshouldbeat200Brinellatleast.
Afterrefiningprocessandburnishing,thewheelaxlematerialcanassemblytheinnerbearingwasher.
Whenusingtherotationaxis,thewheelshouldinstallthecontractorandkey,orinstallthekeyonly.
Allthegearsarespiraltooth,straighttoothorherringbonetooth,thegearwheelismanufacturedofsteelrollingorcastiron,andprocessittobe20°pressureintermeshingangle.
Thebearingistheradialandthrust,doublebank,angularcontactballbearing,orthedoublebankthrusttyperollerbearing.Beforeinstallationthebearingshouldbelubricationandsealing;thebrakeofthetravelingmechanismshouldbeassembledaccordingtothestipulatedworkinggrade,thetravelingmechanismshouldbematchedwithrippledamper
(2)Electricalblock
Themachinepartsoftheelectricalblockarecomposedbythewindingdrum,drivingequipment,loadbox,hook,steelcable,pulleyandbrake.
Whenthehookisatthelowestposition,onwindingdrumthereareatleast2loopofsteelcable.
Thewindingdrumsizeandsteelcablelengthshouldbeconfirmedaccordingtothedesigndrawings.
Theloadboxadoptstheenclosedtypetohaveinterferenceprevention.
Thesteelcableshouldhaveenoughflexibilityandtoughness.
Thereshouldbeenoughtoughness,whenoverload,beforefailurethehookshouldbewithenoughdegreeoffreedom.
Underratedload,thehookcanturn360°.
Thecraneshouldbematchedwithelectricbrakeandmechanicalbraking,itcanbeadjustedsoastocompensatewear-out.
(3)PowerEquipment
Thecranemanufacturershouldinstalltheelectricdeviceonthecraneincludingtheelectricmotor,electricmotorstarter,suspensioncontrolandconduitetc.
Theelectricmotorissquirrelcagetype,undertheconditionoffullload,withlowstartcurrentandhighstarttorque.EachphaseoftheACelectricmotorshouldhaveoverloadrelay.
Therailconductorshouldbetrolleylinetype.Asthedeviationofdesignedvoltageofthebuildingsystemis5%,thetrackandtravelingmechanismconductorfrommotortrackpowersupplyofcontrolcranetooperationthedeviationis10%.
Theslidingconductoriscomposedbygalvanizedsteelstripencapsulatedintheinsulationmaterialbox,therelayisslideblockstylewithpressingoutspring.
Thehoistershouldbeequippedwithcontrollerofmomentarycontactbutton,wheneveranyelectriccableisinpower-cut,itcanstopalltheelectricmotorsuntilre-operation.Eachelectricmotorshouldbeequippedwithlow-voltageprotection.
Thetravelingmechanismshouldhaveslowstartdevice.
Thehoistershouldbeequippedwiththecontroller,thecontrollershouldbehungdownbyelectriccable,onthecontrollertherearestop/startbuttonsforhoister,axletrack,travelingmechanismcontrolling.
(4)SafetyFactor
Thesafetyfactorofthehoisteris1.2timesofthenominalload,theultimateloadtestshouldbedonebeforeexworks,andthetestreportandrecordshouldbesubmitted.Thehoister’sfault-freetimeshouldbe5yearswithoutmaintenance;theservicelifeshouldbe40years.
3.15.5Maincomponentsandmaterials
Mainbeam:
carbonsteelQ235A
Roadwheel:
caststeelZG55
Fastener:
stainlesssteel1Cr18Ni9Ti