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空气弹簧出现漏气现象的原因和解决方法

时间: 2019-03-11 16:52 浏览次数:

 

   在空气弹簧运用过程中,由于气候条件、线路状况以及空气弹簧本身质量等综合因素影响,空气弹簧可能出现漏气现象。原因分析:空气弹簧漏气主要发生在上盖与胶囊之间。在列车运用6~8 a后橡胶材料性能逐渐老化,上盖和胶囊密封部位的橡胶也会发生压缩永久变形,在突然承受较大的横向冲击时,上盖与胶囊密封部会出现配合错位而发生漏气现象。特别在冬季气温降低时,橡胶材料性能进一步变差,更容易出现漏气故障。处理方式:参照南京地铁相关技术要求,在车辆运用中若空气弹簧出现轻微漏气,整车做气密性试验5 min内主风管降压量未超过0.15 bar,可继续使用。若超过泄漏量,则进行更换空气弹簧维修。
    In the process of using the air spring, due to the weather conditions, line conditions and the quality of the air spring and other comprehensive factors, the air spring may appear leakage phenomenon.Cause analysis: air spring leakage mainly occurs between the upper cover and the capsule.After the use of 6-8a in the train, the rubber material properties gradually aged, and the rubber of the upper cover and capsule sealing parts would also suffer from compression and permanent deformation. When the train suddenly bears a large transverse impact, the upper cover and capsule sealing parts would misfit and leak.Especially in the winter when the temperature drops, rubber material performance further worse, more prone to leakage fault.Treatment: according to the relevant technical requirements of nanjing metro, if there is a slight air leakage in the air spring during the operation of the vehicle, the pressure drop of the main air duct within 5 min of the vehicle's air tightness test does not exceed 0.15 bar, it can continue to be used.If more than the amount of leakage, the replacement of air spring maintenance.
空气弹簧出现漏气现象的原因和解决方法

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