交叉支撑转向架组装工艺

:1002-7602(2005)12-0015-04张　伟(中国北车集团齐齐哈尔铁路车辆(集团)有限责任公司机加车间,黑龙江齐齐哈尔161002)　:介绍了下交叉支撑转向架的结构特点和关键技术参数,对侧架导框的加工、侧架与支撑座的组焊和转向架的组装工艺等着重进行了分析。:货车转向架;下交叉支撑;侧架;侧架导框;支撑座;组装工艺:U270.6+4　　　:B　　(),SCTBarber,。,。,。,。,、。,:2005-06-10:　(1970-),,。。,,、,。1　下交叉支撑转向架的结构特点和关键参数1.1　、、,,。。,,(K1。ZG230—450,[1],5.9MPam0.5,66.46MPam0.5。1mm。50mm。,。,50mm,17,179。,,,。4　结论(1)()107.5MPa,,,116km～910km。(2),2,50%,,1,10446km～362016km,。:[1]　,.———[M].:,1997.[2]　DowmingSD,SocieDF.Simplerainflowcountingalgorithms[J].Int.J.Fatigue,1982,4(1):32—40.[3]　.[Z].1989.[4]　[].[M].:,1988.[5]　.———[Z].1991.(编辑:田玉坤)15　铁道车辆　第43卷第12期2005年12月,)。K2K62。K221t,,。K625t,,,。1.2　,,,(K6)。1.2.1　侧架加工尺寸和形位公差要求(1)(1)230mm141mm1.2mm。(2)160mm290mm1.2mm。(3)337+2-3mm、3.5mm。1　K61.2.2　侧架与支撑座组焊后保持环中心与侧架相对尺寸要求(2)(1)(38.5±2)mm。(2)(412±2)mm。2　K6(3)(480±1)mm。(4)(25±1)°。1.3　(1)45mm;10mm。(2):5mm～7mm,9mm～13mm;2mm,4mm。2　转向架制造难点和采取的工艺措施K6K2,、,K6,。2.1　K6,,3。3　K6141mm、290mm、160mm、230mm,、1.2mm。2.1.1　侧架导框141mm尺寸的加工1,,2mm,3.5mm。141mm,,,2,16铁道车辆　第43卷第12期2005年12月　,2mm,141　0-1mm,4mm。2.1.2　侧架290mm尺寸的加工,4。,(290±1)mm290+1　0mm,L3mm,160mm290mm1.2mm,。4　2.1.3　侧架导框顶面定位槽加工,、。,160mm290mm、230mm141mm,;,160mm,12(4),。5。5　2.2　2.2.1　侧架与支撑座的定位焊、,(38.5±2)mm、(412±2)mm、(480±1)mm,K2、。K6(141mm),1mm,K2141mm。,。6。6　2.2.2　侧架与支撑座焊接,,:(1)、。(2),,100℃～250℃,50mm。,。(3)。,2mm、0.5mm,。2,8mm×8mm,SM70,1.2mm。1200A～280A,24V～28V,22.2m/h～24.0m/h;2240A～310A,27V～30V,22.8m/h～25.2m/h,Ar(80%)+CO2(20%)。2.2.3　交叉支撑装置组装及转向架正位,,。(1)(7),,675Nm～700Nm。(2),:,17铁道车辆　第43卷第12期2005年12月　:1002-7602(2005)12-0018-0225T冯　伟(北京博得交通设备有限公司轨道项目部,北京102600):270.38+6　　　:B　　,,,,,,。,25T,,,,,。1　原气路系统1,、,。,,6kg,,,。,,6kg:2005-04-29:　(1967-),,。,,,。,,,,,,。1.;2.;3.;4.;5.;6.;7.。1　7　,,2mm;。(3)。,2mm,,。3　结束语,,,,。(编辑:李　萍)18铁道车辆　第43卷第12期2005年12月　ABSTRACTDesign&AnalysisandTest&ResearchontheSchemeofLoad-CarryingFrameforD26BType290tWellCarTIANBao-shuan,etal.(male,bornin1966,seniorengineer(professori-al),Research&TestSectionofCNRSifangRollingStockResearchInstitute,Qingdao266031,China)Abstract:Thestructuredesignofload-carryingframesforheavy-dutywagonsisthekeytechnologyindesignofheavy-dutywagons,aswellasacreativeideaforcombinationtypeheavy-dutywagons.Inthispaper,withtheloadcarryingframeofD26Btypewellcarasthemodel,thestructuretypeanddimensionsarecomparedandanalyzedwithseveralschemesofstructurestrengththroughthefiniteelements,andthestructureschemeoftheload-carryingframeisde-termined.Viathestructureanalysis,prototypeman-ufacturing,practicalloadingtestandstatic,dynamicstrengthtestontheloadcarryingframesofD26Btypeheavy-dutywagons,theschemeoftheload-carryingframeisverified,andthetechnicalprogressofheavy-dutywagonsispromoted.Keywords:heavy-dutywagon;load-carryingframe;scheme;testResearchonNoiseControlinsideSpeedIncreasedPassengerCarsYANFeng,etal.(male,bornin1976,engineer,Research&TestSectionofCNRSifangRollingStockResearchInstitute,Qingdao266031,China)Abstract:Thedistributionfeaturesofnoiseout-sidethecararedescribed.Thecontributionofnoiseoutsidethecartothenoiseinsidethecarisanalyzed.Thespecificmeasurestoreducenoiseinsidethecarareputforward.Keywords:speedincreasedpassengercar;noise;controlPredictionofBrakingCapacityofTrainsintheHighlandLowAirPressureEnvironmentWEIWei,etal.(male,bornin1963,professor,Traffic&TransportationEngineeringInstituteofDalianJiao-tongUniversity,Dalian116028,China)Abstract:Theairbrakingsimulationsystemisusedtopredictthefeaturesoftheairbrakingsystemunderconditionsofplainatmosphericpressureandhighlandlowairpressure,aswellastheeffectofat-mosphericpressureonthebrakingdistancesinemer-gencybrakingandserviceapplication.Keywords:brakingdistance;brakingcharacteris-tics;highlandtrain;simulationcalculationOptimizationDesignandAnalysisofthePositioningArmStructurefor206KPBogiesZHANGRui-ting,etal.(male,bornin1964,engineer,graduatestudentformasterdegreeofengineering,ZhongnanUniver-sity,Changsha410075,China)Abstract:Twoimprovementschemesareputfor-wardtosolvetheproblemoffatiguedamageinopera-tionofthepositioningarmsforthe3rdgeneration206KPbogies.Inthispaper,thefiniteelementanaly-sisismadeontheoriginalmodelandtheimprove-mentscheme,andthedynamicstressmeasurementismadeonthepartwherethereiscrack.Theresultshowsthatthestaticequivalentstressanddynamicstressarebothreducedby50%orsoafterthestruc-turebeingimproved.Thestressspectrumiscompiledonthebasisoftheactuallymeasureddataofdynamicstressesbeforeandafterimprovement.Thefatigueservicelivesbeforeandaftertheimprovementofstructurearecalculatedwiththelocalstress-strainmethodcombinedwiththefracturemechanicsmeth-od,soastoprovidereliablebasisfordeterminationoftheinspectionandrepairperiodsof206KPbogies.Keywords:206KPbogies;finiteelementanaly-sis;fatiguelife;positioningarmAssemblyTechnologyforLowerCross-BracedBogiesZHANGWei(male,bornin1970,engineer,MechanicalPro-cessingWorkshopofCNRQiqiharRollingStock(Group)Co.,Ltd.,Qiqihar161002,China)Abstract:Describedarethestructurecharacteris-ticsandkeytechnicalparametersofthelowercross-bracedbogie.Mainlyanalyzedarethetechnologiesinprocessingofsideframeguides,assemblybyweldingofthesideframeandbracedseat,andassemblyofthebogie.Keyword