Airspringsystem空气弹簧系统课件.pptx

AirspringsystemStructuralcognitionandinspectionofhigh-speedtrainKeynotespeaker:NiuXiaowei空气弹簧系统高速列车构造认知与检查主讲人：牛小伟

AirspringsystemAnairspringisaspringthatworksbyfillingarubberbagwithcompressedairandmakinguseoftheelasticityofthecompressedair.Becausetheairspringhastheidealnonlinearelasticcharacteristics,afterinstallingtheheightadjustmentdevice,theheightofthebodydoesnotchangewiththeincreaseanddecreaseoftheload,thespringstiffnesscanbedesignedtobelow,andtheridecomfortisgood.Soithasbeenwidelyusedinallkindsofpassengertrains.Figure.1Airspring空气弹簧系统空气弹簧是在一种在橡胶囊中充入压缩空气，利用压缩气体弹性，工作的弹簧。因为空气弹簧具有较理想的非线性弹性特性，加装高度调节装置后，车身高度不随载荷增减而变化，弹簧刚度可设计得较低，乘坐舒适性好。所以在各种客运列车上得到了广泛应用。图1空气弹簧

Theweightofthetrainbodyistransferredtothebogiebytheairspring.Inadditiontosupportingtheloadofthetrainbody,theairspringcanalsoisolatethevibrationofthebogieframe,andrealizetherelativerotationandtransversemovementbetweenthetrainbodyandthebogiebychangingthepositionintheprocessofpassingthecurve.Therefore,theairspringisthekeypartsinthetwo-seriessuspension,isthekeyfactoraffectingthevehiclerunningstability.Figure.2Twoseriesofsuspensiondevice图2二系悬挂装置1-lateralshockabsorber;2-tractionrodseat;3-airspringcomposition;4-anti-snakingshockabsorber;5--LateralstopAirspringsystem空气弹簧系统车体重量通过空气弹簧传递给转向架，除支承车体载荷外，空气弹簧还可以隔离转向架构架的振动，并在通过曲线过程中通过变位实现车体与转向架间的相对旋转和横移。因此，空气弹簧是二系悬挂中的关键零部件，是影响车辆的运行平稳性的关键因素。1—横向减振器；2—牵引拉杆座；3—空气弹簧组成；4—抗蛇行减振器；5—横向止挡

Thepressureairrequiredbytheairspringissuppliedbythetrainbrakesupervisor1throughtheT-shapedbranchpipe2,thecut-offplug3,thedustfiltercheckvalve4intotheairspringairstoragecylinder5,andthenthroughtheairspringsupervisorthroughthebottomofthetraintotheairspringonbothendsofthebogie.Figure.3Airspringsystem空气弹簧系统(1)Airspringsystem空气弹簧系