空气弹簧AirSpring发展Development.•空气弹簧结构AirSpringConstruction.•空气弹簧开发程序AirSpringDevelopmentProcess.•空气弹簧应用AirSpringApplication.•产品验证及产品生产控制ProductvalidationandproductioncontrolResearchFacilities.研究设施·研究中心CentralResearchMeichen.Meichen•先进材料开发AdvancedMaterialDevelopment.•产品和材料分析Product&MaterialAnalysis.•环境试验能力EnvironmentalTestCapability.•先进生产技术评AdvancedManufacturingEvaluations.空气弹簧系列TheAirSpringFamily.空气弹簧结构AirSpringConstruction空气弹簧结构:概述AirSpringConstruction:General我公司双层线网气囊的组成部分:OurStandardTwoplyconstructionisactuallymadeupof:a.混练橡胶内衬Aninnerlinerofcalendaredrubber.b.相互成一定斜角的两层加强线网Twoply‘soffabricreinforcedrubber,withspecificbiastooneanother.c.混练橡胶外覆盖层Anoutercoverofcalendaredrubber.空气弹簧零件AirSpringComponents.1T型空气弹簧总成1TStyleAssembly[1]安装螺柱MountingStud[2]组合螺柱ComboStud[5]缘板BeadPlate[6]柔性元件(气囊)FlexMember(Bellows)[7]缓冲垫Bumper[8]活塞Piston[9]活塞螺钉PistonBolt空气弹簧零件AirSpringComponents.回转曲面型空气弹簧总成ConvolutedAssembly[1]安装螺柱MountingStud[2]组合螺柱ComboStud[3]暗螺母BlindNut[4]空气入口AirInlet[5]缘板BeadPlate[6]柔性元件(气囊)FlexMember(Bellows)[10]环箍GirdleHoop空气弹簧配料AirSpringCompounds·当前天然橡胶配料CurrentNaturalRubberCompound•工作温度范围TemperatureRange-55°fto135°f.•长期实践证明的有效配料TimeProvencompound.·新型重载天然橡胶(New)HeavyDutyNaturalRubber•工作温度范围TemperatureRange-65°fto135°f.•极佳抗臭氧性能ExcellentOzoneResistance.•空气弹簧低温性能很好GreatLowtemperatureAirSpringPerformance.·聚氯丁橡胶NeopreneRubber•工作温度范围TemperatureRange-40°fto180°f.•整形寿命循环性能极佳Excellentcosmeticlifecycleperformance.•空气弹簧高温性能很好GreathightemperatureAirSpringperformance.空气弹簧零件AirSpringComponents.盖板BeadPlates9号(.149”厚)碳钢板,镀防锈层,96小时喷盐试验不产生红色锈蚀.永久性地与柔性元件卷成一体以构成密封组件,使其在发运前可在工厂进行气密性试验.不管缘板直径大小,悬架或支架都应对其提供不小于80%的支承面积.9Gauge(.149”)carbonsteel,platedforcorrosionresistanceto(96hrs)withnoredrust.Permanentlycrimpedtotheflexmembertoformanairtightassemblywhichallowsforintegritytestingbeforetheunitleavesthefactory.Regardlessofbeadplatediameter,80%ofsupportareashouldbeprovidefromthesuspensionframeorbracket.管接头和拧紧扭矩要求Fittings&TorqueRequirements.盖板和管接头有我公司的控股厂家并按照我公司要求设备制造,所以选择性很大,可以冷镦或攻丝,有英制和公制.最常用型式为:BeadPlatesandfittingsaremanufacturedandmanagedbyourDyersburgfacility,thereforemostoptionsareaavailableiftheycanbecoldheadedorscrewmachined,inbothimperial&metric.Themostcommontypesare:(i)单安装螺柱,一般是1/2-13统一标准粗牙螺纹.SingleMountingStud,usually½”-13UNC.(ii)组合螺柱,将3/4”-16统一标准细牙安装螺柱与1/4”锥管内螺纹空气入口组合在一起.CombinationStud,combination¾”-16UNFmountingstudwith¼”NPTinternalairentrance.拧紧扭矩要求清楚标明在固定于气囊缘板上的标牌上空气弹簧零件AirSpringComponents.缓冲垫Bumpers.在系统无气压时防止损坏空气弹簧的内部缓冲装置.该材料有两种:AninternaldevicetopreventdamagetotheAirSpringduringtimeswhennoairisinthesystem.Twomaterialsareavailable(i)天然橡胶–根据变形系数设计可调节其弹性系数(刚度).目前可提供许多种不同尺寸的缓冲垫.NaturalRubber-Adjustableratebasedonshapefactordesign,currentlyavailableinmanydifferentsizes.(ii)TPE2/复合材料–高刚度小变形,耐冲击性能极佳,可作为刚性停挡使用,即客车跪低头部等情况下使用.与橡胶缓冲垫比较尺寸很小.TPE2/Composite-Highrate&lowdeflection,excellentimpactresistance,workswellasapositivestop,i.e.forknellingbusapplicationsetc.minimalpermanentsetascomparedtoRubberbumpers.Lightweightalternativeascomparedtorubber.密封端板EndClosure.钢材制造,与柔性元件永久性地模铸在一起(1T19系列和扣紧组装型总成除外).密封端板作为缓冲垫的安装界面并连接柔性元件与活塞.Thisismadeofsteelandispermanentlymoldedtotheflexmember(exceptforthe1T19Seriesandsnaponassemblies).Theendclosureisusedastheinterfaceforholdingthebumperandattachedtheflexmembertothepiston.空气弹簧零件AirSpringComponents.活塞材料PistonMaterials.材料Material特性Feature钢Steel塑料Plastic铝Aluminum重量Weight.最重Highest最轻Lowest中等ModerateInternalVolume.国内产量全部Full部分Particle部分Particle耐蚀性CorrosionResistance.400Hrs400小时无限Infinite400Hrs400小时年产量AnnualVolume.低/中等Low/Moderate最高Highest中等Moderate总成本/价格CostPcs/Price低/中等Low/Moderate最低Lowest中等Moderate模具成本ToolingCost.最低Lowest最高Highest中等ModerateAirSpringComponents.空气弹簧零件PistonContour活塞外形LoadDeflectionCurve载荷变形曲线Comments说明ModerateRate&NaturalFrequency中等刚度和中等自然频率ConstantLoadRangeOverUsableStroke可用行程内载荷不变LowRate&NaturalFrequency低刚度和低自然频率DecreasingLoadRangeOverUsableStroke可用行程内载荷下降LowestRate&NaturalFrequency最低刚度和最低自然频率ConstantLoadRangeOverUsableStroke可用行程内载荷不变HighestRateandNaturalFrequency最高刚度和最高自然频率LiftApplicationPreferred最好用于提升装置空气弹簧开发程序AirSpringDevelopmentProcess空气弹簧开发程序AirSpringDevelopmentProcess空气弹簧开发程序AirSpringDevelopmentProcess•通过EPCRN接收项目(设计输入)•ProjectReceivedViaEPCRN(DesignInput)•审查用户原始要求和当前工程规格(建立项目检查表)•Reviewinitialcustomerrequirementsandcurrentengineeringspecification.(EstablishProjectCheckList)•通过有限单元分析建立设计理念,包括制造和要求的外部供货商•EstablishdesignconceptviaFEA,involvingmanufacturing&externalsupplierswererequired.•生成审批图纸(设计输出)•APQPViaDFMEA&DVP&R.•设计审查阶段•ProduceProposalDrawings.(DesignOutput)DesignReviewStage.•制造样机并进行性能试验ManufacturePrototypes&conductperformancetesting.•设计审查(验证)•DesignReview(Verification).•样机布置和发出•PrototypeLayout&Release.1、承载载荷;2、安装空间;3、空气弹簧行程。设计和研发能力设计所需主要参数:产品的结构设计¾有效面积计算公式:Ae=Ae=л×r1000wp2¾相关参数计算欧曼驾驶室悬置驾驶室悬置总成构成1、减振系统:空气弹簧、减振器;2、高度控制系统:高度阀;3、抗侧倾系统:稳定杆;4、锁止机构:正常工作时保证驾驶室与车架的连接;5、翻转机构:翻转驾驶室,便于发动机等部件的维修;6、限位机构,限制异常振动以及保证驾驶室的正常翻转;7、其他联结构件。空气弹簧的开发案例¾结构空气弹簧的开发案例结构长春一汽的J5车型的底盘空气弹簧底盘空气弹簧的透视图空气弹簧应用AirSpringApplication空气弹簧应用–载荷变形曲线AirSpringApplicationLoadDeflectionCurves空气弹簧应用–术语AirSpringApplicationTermi