The invention provides a locomotive backup braking device, a control method thereof and a locomotive. The device comprises a backup braking pipeline, a two-position three-way electromagnetic valve and a two-position three-way pneumatic control valve, wherein the backup braking pipeline is communicated between a main air pipe and a train pipe and is provided with a main air isolation cock, a backup braking valve, a backup balancing air cylinder, a backup relay valve and a train pipe isolation cock in sequence along the airflow direction; the two-position three-way electromagnetic valve is electrically connected with a locomotive microcomputer control system and is provided with three gas path interfaces, namely, a first gas path interface, a second gas path interface and a third gas path interface, the first gas path interface is communicated with the main air pipe, and the third gas path interface is communicated with the atmosphere; and the two-position three-way pneumatic control valve is provided with four gas circuit interfaces which are respectively communicated with a pre-control pressure port of the two-position three-way electromagnetic valve, the average pipe output pressure, the atmosphere and a two-way valve in the braking system. When the device is started, the output pressure of the emptying average pipe can be controlled, the situation that a brake cylinder cannot relieve the pressure is avoided, the technical problem that people need to get off to open an average pipe cock in the prior art is solved, and the reliability of the braking system is improved.

    本发明提出一种机车后备制动装置及其控制方法、机车,该装置包括:后备制动管路,连通于总风管和列车管之间,沿气流方向依次设置有总风隔离塞门、后备制动阀、后备均衡风缸、后备中继阀与列车管隔离塞门;两位三通电磁阀,与机车微机控制系统电连接,具有三个气路接口,分别为第一、第二、第三气路接口,第一气路接口与总风管连通,第三气路接口与大气连通;两位三通气控阀,具有四个气路接口,分别与两位三通电磁阀的预控压力口、平均管输出压力、大气和制动系统内部双向阀连通。本发明在装置启动时,可控制排空平均管输出压力,避免制动缸无法缓解,解决了现有技术中需人工下车打开平均管塞门的技术问题,提高了制动系统的可靠性。


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    Title :

    Locomotive backup braking device, control method thereof and locomotive


    Additional title:

    一种机车后备制动装置及其控制方法、机车


    Contributors:
    XIA JUN (author) / WANG LINGJUN (author) / HOU HUA'AN (author) / WANG SHUAISHUAI (author) / ZHU GUANWEN (author) / ZHANG MAOSONG (author) / SUN WEIJIAN (author) / WU JUNLIANG (author)

    Publication date :

    2021-08-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES



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