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典型线路下重载机车胶泥缓冲器泄漏故障分析
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中车株洲电力机车有限公司科技研发项目(2017CJA0021);中国铁路总公司科技研发项目(2015J007C).


Leakage Failure Analysis of the Elastomer Buffer of Heavy Load Locomotive on Typical Line
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    摘要:

    针对典型线路下重载机车使用的缓冲器QKX100出现的胶泥泄漏现象,使用铁科院纵向动力学计算软件进行典型线路下重载货运列车的纵向动力学计算;结合胶泥芯子的结构原理,分析钩缓系统故障产生的原因。分析结果表明:在持续的陡坡线路上,变坡度会引起车钩力的剧烈变化,而在进行循环制动时,列车的中后部出现较大纵向冲动;而在此种线路条件下,QKX100弹性胶泥缓冲器的作用也越频繁,因此缓冲器动密封圈的磨损就会加大,胶泥泄漏的也就越大。为了改善缓冲器工作状态,应采用适当的机车操作、合理的列车编组以及更严格的缓冲器生产管控。

    Abstract:

    Aimed at the cement leakage phenomenon of the QKX100 buffer of heavy load locomotive on typical line,the longitudinal dynamics calculation of heavy load train was carried out by using longitudinal dynamic simulation software of CARS.Combined with structure principle of cement core,the cause of the trouble of the coupler buffer system was analyzed.It is found that on the continuous steep slope line,the change of slope will cause the sharp change of coupler force.While in the course of circulating braking,there is a great longitudinal impulse in the middle and rear part of the train.In these line conditions,operation of QKX100 is more frequently,the response frequency of the seal components of QKX100 is also greater.So the wear of sealing ring of buffer will increase,and its cement leakage is greater.In order to improve the working state of the buffer,proper locomotive operation,reasonable train formation and more strict buffer production control should be adopted.

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张海,金希红,曾燕军,肖乾,付伟.典型线路下重载机车胶泥缓冲器泄漏故障分析[J].润滑与密封,2018,43(12):16-21.
. Leakage Failure Analysis of the Elastomer Buffer of Heavy Load Locomotive on Typical Line[J]. Lubrication Engineering,2018,43(12):16-21.

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  • 在线发布日期: 2019-07-04
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