The invention provides a rapid descending device for a pantograph, the pantograph and an implementation and improvement method of the pantograph. The rapid descent device (1) comprises: a valve (20) comprising two chambers (22, 24); at least one friction strip (10, 12) fixed to the body of the current collector bow of the pantograph and equipped with a degradation detection circuit (11, 13), said current collector bow being intended to come into contact with an overhead line; at least one fluid supply line (44) to the main chamber of the valve; at least one feed line (30, 32) for feeding the fluid to a pilot chamber of the valve; and at least one monitoring line (14) extending from the pilot chamber (22) of the valve to feed the respective detection circuits (11, 13). According to the invention, the rapid descent device comprises means (40) for temporarily closing the fluid feed of the main chamber, which reliably ensure an initial elevation of the pantograph until it comes into contact with the overhead line.

    本发明提供一种用于受电弓的快速下降设备、受电弓、其实施和改进方法。该快速下降设备(1)包括:阀(20),包括两个腔室(22,24);至少一个摩擦条(10,12),固定到受电弓的集电器弓的主体并装备有劣化检测回路(11,13),所述集电器弓用于与架空线接触;至阀的主腔室的至少一条流体供给线(44);至少一条馈线(30,32),用于将该流体馈送至阀的先导腔室;以及至少一条监测线(14),从阀的先导腔室(22)延伸,以馈送相应的检测回路(11,13)。根据本发明,该快速下降设备包括用于暂时关闭主腔室的流体馈送的装置(40),该装置可靠地确保受电弓的初始提升,直到其与架空线接触为止。


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    Title :

    QUICK DESCENT DEVICE FOR A PANTOGRAPH, PANTOGRAPH, METHOD FOR IMPLEMENTING SAME AND METHOD FOR IMPROVING SUCH A PANTOGRAPH


    Additional title:

    用于受电弓的快速下降设备、受电弓、其实施和改进方法


    Contributors:

    Publication date :

    2021-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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