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313Vol.31No.320066JOURNALOFCHINACOALSOCIETYJune2006:0253-9993(2006)03-0380-06,,,(,221008):,,.:;;400.,.:;;:TD4:A:2005-08-11:(50475164,50225519);(BK2002116):(1960-),,,,.E-mail:hzhu@cumt1edu1cnStudyonwearfailuresofminingmachineryZHUHua,WUZhao2hong,LIGang,GEShi2rong(InstituteofReliabilityEngineering,SchoolofMaterialsScienceandEngineering,ChinaUniversityofMiningandTechnology,Xuzhou221008,China)Abstract:Inordertorealizeandpayraptattentiontotheproblemofwearfailuresofminingmachineryinourcountry,thewearfailureformsandmechanismsofminingmachinerywereinvestigatedandanalyzed,andtheeco2nomiclosscausedbywearwascalculatedstatistically.Studyshowedthatthewearandfracturearemainwearfail2ureforms,andtheabrasivewearandcorrosiveweararedominantwearmechanisms.Itwasrevealedthattheeco2nomiclosscausedbywearismorethan40billionyuansincoalmines.Inaddition,somesuggestionsabouthowtoreducethewearfailureofminingmachineryandprolongitsworkinglifewereputforward.Keywords:miningmachinery;wearfailure;wearreduction,90%,,:.;.;.,;.,,,.,,,.,,,.,()()(),.3:..1111(1),,,,,.,,(600800),.,(HV9001100),.,.,1a7080,1600(2004,).,80%95%,5%.(2),,.,,25mm.,,,(),78(100t),,,.,,,..,.,.,(160t/a)90().,27.112,,..(1),.(),.,3,,,,,.,5060.610712t,21402188..2005,,,,2530mm4050mm,12.(2),,50%..,,,.,,.6%,,;,,(),.,().,SGW-40T,400,6080t183200631.SGZ-1000/140050mm,300t.20t45%,1012.113(1),,..,,,.,,.,,.,,,.(),[1]..,,;,,,,,,..,,.800m40mm12,115210a.,,6070().,1700,1360.,14.(2),,.,;;,.,,,.,760t,4050.,4a.,15.114,.,,,.(1)(215m/s415m/s),:.,(3000050000h),800010000h.,,95%.,305306,30000h,600r/min,23a(15000h).,,,,,,.,,,...,80%.,.2833:5000,1000,170.,23.(2),..,.,,.,,,,.(),.().,,(),,.,,,,.,,,.,M7-668,600800t,1000t.10002000m,160340.,12.115,,,35,.,,.,,.,,.,,.,,,35.,67.,5,316.20.116,.,.(1),.,90180d,,.:.,,,,,..2,,,;,,.,.,-,.,,232030m.,.()400,14.,500,9000.(2),.,,,,.,,,.,383200631.,,20003000.117,,,,.5a,23a,.(),.(1),,,,.,,.,.,,,,,,.,,,.,,,,[2,3].(2)50%.,().,.,,,.,,,,[4].2,,20h,4000t/d,,2.2000.118,.;;;;;;;,,.,,.,50.,,30%40%.200426184kWh,200420t,53618kWh,0165,348192.,400.2,,,.:(1),[5,6].,,,.,4833:,,[7,8].(2),,,.,,,.,,[9].(3)(16Mn,20Mn),,.,(Mn,Cr,Mo,Ti,B),.,,,.,.,,.,[410].(4),,,.,,,,.,,,,,.,,.,,,,.,.3,,,,..,,,,,,.:[1],.[J].,2003,22(1):9496.[2],,.[J].,2003,31(3):4547.[3],.[J].,2002,30(7):6264.[4]ZhuHua,GeShirong,YuXiaoyan.Anovellow-noisevibratingscreen[J].CoalPreparation,2004,24(1/2):8596.[5],,.[J].,2005,33(6):7173.[6],,.[J].,2005,33(9):8083.[7],,,.GCr15[J].,2005(10):2526.[8],,.GCr15[J].,2005(8):2426.[9].[M].:,1995.2225.[10],.[J].,2004,15(4):300302.583