米其林均动培训教材

Oct.2005Oct.2005QJFQGPSWTWelcometojoinuniformitytraining欢迎参加均衡培训Oct.2005Oct.2005QJFQGPSWT均匀性Oct.2005Oct.2005QJFQGPSWTDefinitionofuniformity均匀性的定义：•Theshape,massandrigidityofthetireswasabnormalchangedwhenthetiresturnofreel.•当轮胎滚动一周时，由于其外形、质量、刚性发生了变化，而引起的异常波动。Oct.2005Oct.2005QJFQGPSWTUNIFORMITYCRITERIA均匀性基本概念图示ThethreemaincausesofUniformityCQsare:影响均匀性的三个因素：-ImperfectionofMASS质量分布不均-ImperfectionofSHAPE形状异常-ImperfectionofRIGIDITY刚度不均Oct.2005Oct.2005QJFQGPSWTUNIFORMITYCRITERIA均匀性基本概念图示MASS质量RIGIDITY刚度SHAPE形状Oct.2005Oct.2005QJFQGPSWTUNIFORMITYCRITERIA均匀性质量指标Oct.2005Oct.2005QJFQGPSWT•RFVVariationRadiusCresttoCrest径向力动•RFV1HVariationRadiusHarmonic1径向一次谐波•LFVVariationLateralCresttoCrest横向力波动•CONDeriveZero锥度•CRROFalseRound胎面的不圆度•BLRODeformationFlanc胎侧的局部凹凸•BSStaticBalance静态不平衡•BDDynamicBalance动态不平衡UNIFORMITYCRITERIA均匀性质量指标Oct.2005Oct.2005QJFQGPSWT24567891011VRistherawcurvefromcontrolmachine.VRCCisthesumofthe16THfirstharmonicsItisthemeasureofthevariationoftheforceF.13FOct.2005Oct.2005QJFQGPSWTVARIATIONRADIUSCRETETOCRETE:VRCC径向力的变化Constantradius直径不变1turnofreel轮辋转一圈Variableradius径向变化09630Oct.2005Oct.2005QJFQGPSWTCrushradiusChargeRADIUSVARIATION–VRCC径向力的变化1turnofreel轮胎转一圈Oct.2005Oct.2005QJFQGPSWT-1.50-1.00-0.500.000.501.001.50１次谐波分量Oct.2005Oct.2005QJFQGPSWTOct.2005Oct.2005QJFQGPSWTG.VidalICCSMWTMay2004Oct.2005Oct.2005QJFQGPSWTG.VidalICCSMWTMay2004rRVRH1Oct.2005Oct.2005QJFQGPSWT-1.50-1.00-0.500.000.501.001.502.0001234567891011Oct.2005Oct.2005QJFQGPSWTDERIVEZERO(D0)零位偏移Conicityisatire’stendencytodrifttoonesideortheother.Ifthetiredriftstothereferenceside,conicityisdefinedaspositive.Ifitdriftstotheanti-referenceside,conicityisnegative.锥度是用于描述轮胎在运行中是否会发生偏移的一种参数。如果轮胎在行驶中向参考面偏移，则称为正锥。若向参考面的反方向偏移，则称为负锥。Oct.2005Oct.2005QJFQGPSWTDERIVEZERO(D0)零位偏移Oct.2005Oct.2005QJFQGPSWTVLCC侧向力的波动Oct.2005Oct.2005QJFQGPSWTVARIATIONLATERALECRETETOCRETEVLCC侧向力变化Oct.2005Oct.2005QJFQGPSWTLFV侧向力的变化NST2Oct.2005Oct.2005QJFQGPSWTVARIATIONLATERALECRETETOCRETEVLCC侧向力变化Oct.2005Oct.2005QJFQGPSWTFalseRound胎冠不圆度Oct.2005Oct.2005QJFQGPSWTDeformationFlanc胎侧的局部凹凸Oct.2005Oct.2005QJFQGPSWTBSSTATICBALANCE静平衡Oct.2005Oct.2005QJFQGPSWTSTATICBALANCE静平衡Oct.2005Oct.2005QJFQGPSWTSTATICBALANCE静平衡Oct.2005Oct.2005QJFQGPSWTSTATICBALANCE静平衡Oct.2005Oct.2005QJFQGPSWTDynamicBalanceDBOct.2005Oct.2005QJFQGPSWTOct.2005Oct.2005QJFQGPSWTOct.2005Oct.2005QJFQGPSWTOct.2005Oct.2005QJFQGPSWTOct.2005QJFQGPSWTQC产生的原因和影响Oct.2005QJFQGPSWTRFV原因：半制品接头过于集中；KM压辊压力太大；NC拉伸过长（稀开）等。影响：不正常的磨损、振动、噪音。Oct.2005QJFQGPSWTVRCC径向力的变化DEVELOPMENTBEFORECUREWASTOOBIG硫化前NSP周长过大Deformationofsummitatsectorjointinsidethemould硫化后，胎冠处，模具扇形块接头处的变形Oct.2005QJFQGPSWTVRCC径向力的变化HeavyKMjointKM接头过后===Curing硫化AfterCuring硫化后Oct.2005QJFQGPSWTRFV1H•原因：硫化机中心偏移；•KM接头太大；•钢圈位置不准确等。•影响：不正常磨损、机械疲劳、跳动。Oct.2005QJFQGPSWTRFV1H径向力变化的一次谐波Oct.2005QJFQGPSWTLFV•原因：NST2摆放不正，呈S状；•一段胎筒与KM组件错位；•KM摆放不正，呈S状等。•影响：行驶中呈S形偏离正常轨道。Oct.2005QJFQGPSWTVLCC侧向力的变化KMNST2Oct.2005QJFQGPSWTEffectOct.2005QJFQGPSWTCON•原因：KM截面呈锥体；•NST与一段胎筒错位；•KM组件与一段胎筒错位等。•影响：行驶中轮胎向一边偏离正常轨道。Oct.2005QJFQGPSWTDERIVEZERO(CON)零位偏移CENTRE中心CARCASSE胎筒NST2OUTOFCENTRENST2摆放位置偏心Oct.2005QJFQGPSWTDERIVEZERO(CON)零位偏移CONICITYOFKMKM挤出后厚度成锥形Oct.2005QJFQGPSWTFR•原因：生胎周长太长；•半制品厚薄不均；•KM接头太大等。•影响：非正常磨损和跳动。Oct.2005QJFQGPSWTFR突出状态Oct.2005QJFQGPSWTFR凹陷状态Oct.2005QJFQGPSWTDF•原因：胎侧街头过大（DFB）；•帘线稀开（DFB）;•帘布接头过大（DFC）等。•影响：外观异常，使用寿命短。Oct.2005QJFQGPSWTDF突起状态FE接头过大FEjointoutOct.2005QJFQGPSWTDF凹陷状态NC接头脱接NCjointoutOct.2005QJFQGPSWTBS•原因：半制品接头太集中；•半制品(KMGINC等)厚薄不均匀。•KM长短不一致等。•影响：外观变形、跳动、不正常磨损。Oct.2005QJFQGPSWTBS-Example例如：BSKMJOINT接头HEAVYJOINTBEFORECURE硫化前KM接头过厚HEAVYPARTAFTERCURE硫化后局部质量过厚Oct.2005QJFQGPSWTTOOLONGBS-Example例如：BSOct.2005QJFQGPSWTEffectOct.2005QJFQGPSWTBD•原因：GI接头不对称；•KM两边厚薄不均；•FE接头两边不一致等。•影响：外观变形、跳动、机械疲劳。Oct.2005QJFQGPSWTDYNAMICBALANCE动平衡KMthicknessvariation型胶部件厚度的变化Oct.2005QJFQGPSWTDYNAMICBALANCE动平衡GIjointproblemGI接头不对称FEjointproblemFE接头两边不一致Oct.2005Oct.2005QJFQGPSWTThankyou谢谢!