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Jiangsu dilong heavy machinery co., LTD. All rights reserved  

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产品维护与保养
Maintenance of drilling RIGS
1.Keepthesurfaceofthedrillingmachineclean,removemud,dirtandothersundriesatanytime,andkeeptheslidingtrackclean. 2.Alwayspayattentiontomonitorthetemperaturechangeoftherigparts,bearingpartsofthepowerhead,gearboxshouldnotbehigherthanthetemperatureof60℃,thetemperatureofthehydraulicsystemofmediumoiltankshouldnotbehigherthan80℃,otherwiseshouldstopcheckandeliminatethecausesofoverheating. 3.Listentotherunningsoundofeachactionpieceatanytime.Ifthereisabnormalabnormalsoundsuchasviolentvibration,knockingsoundandscreaming,stopthemachineimmediatelytocheckanddealwithit.Ifthereisleakageofoilineachsealingplace,stopthemachineintimetodealwithit. 4.Lubricateaccordingtolubricationrequirements. 5.Allfastenersshouldalwaysbefirmandreliable,andnoloosenessisallowed. 6.Themaintenanceofdieselengineshouldrefertoitsoperationmanual. 7.Replaceoilfilterelementandhydraulicoilregularlyasrequired. 8.Payattentiontothechangeofhydraulicoillevel,whenthehydraulicoilislowerthan2/3oftheliquidlevelmetershouldbetimelyreplenishment.
2018-12-17
Use method of drill pipe and matters needing attention
I.featuresoftrenchlessengineering Thetrenchlessprojectbelongstothehighriskproject,thedrillpipequalityandthecorrectstandardchoiceandtheuse,isguaranteestheprojecttocompletesmoothlytheimportantfactor,butisnottheonlyfactor.Pre-constructionpreparations,suchasrationalityofdesign,on-siteexploration,geology,surfaceanalysis,qualityofconstructionpersonnel,constructionmethods,performanceandreliabilityofdrillingRIGS,mudratioandapplication,andconfigurationofconstructionequipment,areallimportantfactorsrelatedtothesuccessorfailureoftrenchlessengineering. Ii.Precautionsfortheuseofdrillpipe 1.Selecttherighttypeofdrillpipeaccordingtothetorque,pushingandpullingforceofthedrillandtheallowableminimumradiusofcurvature. 2.Avoidconnectingthelargediameterdrillpipewiththesmalldiameterdrillpipeduringconstruction(i.e.,mixthesizeandsizeofdrillpipe)topreventthesmalldrillpipefrombeingbrokenordeformedduetoinsufficientstrength. 3.Whenclampingthedrillpipewithvise,donotclampthefemalebucklepartofthefemalejointtopreventthefemalebucklefrombeingclampedoutofshape. 4.Payattentiontothepre-tighteningforceoftheupperbuttonshouldbecontrolledwithin15MPawheninstallingtheconnectingdrillpipetopreventtheunloadingdifficultyduetoexcessivepressure.Avoidusingfiretobakethejoint,reducethemechanicalpropertiesofthejoint,(especiallythefemalejoint)affecttheservicelife.Unpretightenedthreadconnectionswing,accordingtothethreadgrindingtoothtiptiptip,sideridge,leadtothreaddamagegoodsproducedstickybucklephenomenon.Thethreadrootofthemalejointmaybefatiguebrokenifthefemalejointisnotpre-tightenedandthefemalebucklestepisnotpressedtightly.Undertheactionofhigh-pressureliquidflow,thefemalejointispuncturedandcorroded,whichislikelytoleadtolongitudinalcrackofthefemalejoint. 5.Payattentiontocleanthemalebuckleandfemalebucklebeforeinstallingthedrillpipe,andwipeonthethreadbuckleoil(threadbuckleoilcannotbereplacedbyotherwasteoil,poorpressureoil)topreventprematurewearandtearofthemalebuckleandfemalebuckleordamage. 6.Payattentiontoclearthechannelholebeforeinstallingtheconnectingpipetopreventdebrisblockingthechannelfromcausingthemudsystemtosuppresspressure. 7.Becarefulnottoforceupthebutton.Themalebuckleshallnotimpacttheshoulderandthreadofthefemalebuckle,andthemaleandfemalejointshallbecentered.Ensurethecoaxialityoftheshackleofthedrillandthespindleofthepowerhead. 8.Payattentiontocheckthewearconditionofeachpartofthedrillpipe,andfindoutthereasonintimeifabnormalwearoccurs: 1)determinewhetherthedrillpipeisscratchedbysharpandhardmaterialinthehole 2)pleaseusecarefullywhenthescratchmarksonthedrillpipebodyareabout1mmdeepandmorethanonespiralcircle.Preventthedrillpipefrombeingbrokenduringconstruction,causinggreaterloss. 9.Notethatifthedrillcollarshortcollartypeisdamaged(wrongorbadlyworn),itshouldbereplacedintimetoavoiddamagingthedrillpipethread. 10.Payattentiontohoistingandhandlingthedrillpipetoavoidimpactdamagetothemalebuckle. 11.Payattentiontoavoidmixingdifferentbuttontypeofdrillpipe,evenifitisnotproducedbythesamemanufacturerofdrillpipealsodonotmix(becauseeachmanufacturermanufacturingdrillpipetechnicalparameters,processingmethods,props,mechanicalequipment,processingofdrillpipetolerance,closedistancewillbedifferent);Thedifferencebetweentheoldandthenewistoobig,thedegreeofwearandtearistoobigdrillpipealsodonotmix,toavoidcausingconstructionrisk. 12.Ifitisfoundthatthedrillpipebuckletypehaslocalsmallrange(about1-2buckle,bucklelengthof10mm)damage,itshouldberepairedintimebeforeuse. 13.Usequalifiedzinc-basedribgrease,butterisnotsuitableforuseasthreadthreadoil.Insufficientthreadgreasecauseshighpointofjointshoulderdamage,easytomakethreadconnection"loose"andcausethreaddamage.Donotusethreadgreaseoruseunqualifiedthreadgrease,canmakethreadbucklesurfaceagglutinate,produceagglutinatebucklephenomenon. Third,thedrillpipemayappearintheuseofthefault 1.Thedrillpipebreaksalongthemaleandfemalethread 2.Fractureofdrillpipebody 3.Fractureoropenweldingoffrictionweldingjoints 4.Thedrillpipebodyisbentortwisted 5.Endfaceexpansionofdrillpipemasterbuckle 6.Deformationofendfaceofdrillpipemasterbuckle 7.Thedrillpipebuckleisdamaged 8.Thesurfacedamageofdrillpipemaleandfemalejointisserious Iv.Causesandtreatmentmethodsofdrillpipefaults 1,drillpipealongthemaleandfemalethreadfracture 1)thetorqueofthedrillrigexceedsthetorquebornebytheinclinationAngleofthedrillpipe 2)theradiusofcurvatureoftheconstructionholeexceedstheminimumradiusofcurvatureofthedrillpipe 3)whenreaming(especiallywhenexpanding)ordrillingguideholesforalongdistance,thedrillbitsuddenlyencountershardobjectsandgeneratesastrongimpactforce.Causesthetorquetoincreasesuddenly,causesthedrillpipetobreakortwisttobreak. 4)theoperatorshouldreasonablycontroltherotationspeedandpropulsionforcewhenoperatingthedrilltoavoidthiskindofsituation. 2,drillpipebodyfracture 1)thetorqueofthedrillrigexceedsthetorquebornebytheinclinationAngleofthedrillpipe 2)theradiusofcurvatureoftheconstructionholeexceedstheminimumradiusofcurvatureofthedrillpipe 3)whenreaming(especiallywhenexpanding)ordrillingguideholesforalon
2018-12-17
Drill pipe maintenance instructions
Ninetipstoextendthelifeofyourdrillpipe 1.Whenusinganewdrillpipe,itisnecessarytomakesurethatthethreadbuckleofthebit'sfrontsection(theprotectionshafthead)isalsonew.Abitwithabadthreadmayeasilydamagethethreadbuckleofthenewdrillpipe,causingwaterleakage,clampingandloosening 2.Whendrillingforthefirsttimewiththedrillpipe,"grindthenewbuckle"first,whichincludesfirstapplyingthethreadbuckleoil,thenfullytighteningwiththedrillpipe,thenopeningthebuckle,thenapplyingthethreadbuckleoilandthenopeningit.Thismethodcanberepeatedthreetimestoavoidnewrodwearandbuckle. 3.Asfaraspossible,keepthedrillpipestraightunderthegroundandabovetheground.Thiscanavoidpartofthewirebucklesideforceandcauseunnecessarywear,orevenjumpbuckle. 4.Tightenthebuckleslowlytoreduceoverheatingandwear. 5.Everytimethefastenerisfastenedwithfulltorqueforce,andalwayspayattentiontowhethertheclampingpieceisingoodcondition. 6.Shortenthedistancebetweenthedrillrigandthegroundentrance,becauseifthedrillpipelackssupport,itwillbeeasytobendanddeformwhenthedrillpipeispushedforward,resultinginshortservicelife. 7.KeeptheinletAngleassmallaspossible,andslowlychangetheAngleaccordingtothedrillpipesafetyrequirements. 8.Donotexceedthemaximumbendingradiusofthedrillpipe,especiallypayattentiontothehorizontalsectionwhendrillingandtheAnglechangewhendrilling. 9.Keeprotatingthedrillpipe,avoidfixeddrillingpipeguideandpullback,musttaketurns,soastoavoidexcessivewearandtearandbreaktherod.
2018-12-17
Diesel engine failure and troubleshooting methods
(1)circuitfault:circuitbreak,shortcircuit,poorcontactofconnector,switchfailure,etc.; (2)batterypowershortage:measurethebatteryvoltage,iflowerthan24V(2batteries),charge; (3)thehydraulichandleisnotreset:thedieselenginecannotstartwithload,andtheoperatingrodisreset; (4)thequickfeedandpullbuttonisintheopenposition:thedieselenginecannotstartwithload,andthebuttonisinthestopposition; (5)themudrotationbuttonisintheopenposition:thedieselenginecannotstartwithload,andthebuttonisinthestopposition. (6)thequickbuttonisintheopenposition:thedieselenginecannotstartwithload,andthebuttonisinthestopposition; (7)thestartupbuttonisnotinplace,orthestartuptimeisshort;Pressthebuttonhard,andpressitforalittlelongerincoldweather; (8)thepowerswitchisnotclosed:closetheswitch; (9)oilcircuitairresistance:loosentheopenairscrewandpressthehandpumptoexhaust; (10)shortageofoil:refueling; (11)stopthesolenoidvalveanddonotoperate:maintainthesolenoidvalve; (12)fusefuse:replacethefuse; (13)theemergencystopbuttonispresseddown:theemergencystopbuttonisreset; (14)coldweatherinwinter:startafterheatingthecirculatingwater.
2018-12-17
Track chassis use and maintenance
1.Allthewalkingwheelsarelubricantsforone-timerefueling,whichdonotneedrefuelingandmaintenanceatordinarytimes,buttheplanetarygearboxofthewalkingreducershouldbecheckedonceafterworkingforoneyear.Drainhole(covertheouterendface)turntothelowestpositionandloosenthescrewblock.Ifyoufindthatthelubricatingoilpollutionisserious,youshouldchangetheoilintime. 2.Thetightnessofcrawlershallbecheckedaftercompletionofeachproject.Inspectionstandard:liftthechassisoffthegroundwiththefrontanchorplateofthemastandtherearsupportingleg,andkeepthemiddletreadofthelowercrawlerintheouteredgeofthesupportingwheel.Ifitistooloose,thesidesquarecoverofthewalkingframecanbeopened,andtheanti-slipblockcanberemovedfortightening.Afterreachingtherequirements,theclampblockcanbeinstalled,theanti-looseboltcanbetightened,andthecoverplatecanbecovered.Whenreplacingthenewtrack,thetighteningscrewshouldbeadjustedtotheinnermostpositionoftheguidewheelforeasyreplacement. 3.Intheuseofrubbercrawler,itshouldbeavoidedtostartorturnquicklyonthesharpprotrudingstones,avoidcontactwithoilontherubbersurface,andwipeoffimmediatelyoncethereisoil.
2018-12-17
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