The invention relates to an air backup braking system and a locomotive, and the system comprises a backup conversion cock which is provided with a normal position and an air position; a backup pressure regulating valve; a pressure measuring point; the back-up brake valve is provided with a braking position, a neutral position and a relieving position; a backup balance pressure air cylinder; the backup relay valve is used for outputting the pressure of an A2 port in real time according to the pressure of the balance air cylinder when the air backup mode is put into use; when the backup conversion cock is in a normal position state, an A2 port and an A3 port of the backup conversion cock are communicated, main air of a backup brake valve is cut off, pressure of control ports C1 of a first switching valve, a second switching valve and a third switching valve is emptied, and a high-level signal is output. When the back-up conversion cock is in an air position state, the A1 port and the A2 port of the back-up conversion cock are communicated, meanwhile, total air is output to the control ports C1 of the first switching valve, the second switching valve and the third switching valve through the A2 port in a pressure mode, and a low-level signal is output. The technical problem that real-time switching cannot be achieved after the locomotive electric pneumatic brake breaks down is solved.

    本发明涉及一种空气后备制动系统及机车,系统包括:后备转换塞门,具有正常位和空气位两个位置;后备调压阀;压力测点;后备制动阀,具有制动、中立、缓解三个位置;后备均衡压力风缸;后备中继阀,用于空气后备模式投入时根据均衡风缸的压力实时输出其A2口压力;其中,后备转换塞门的正常位状态时,沟通后备转换塞门的A2与A3口,切断后备制动阀总风,排空第一切换阀、第二切换阀和第三切换阀的控制口C1口的压力,并输出高电平信号;后备转换塞门的空气位状态时,沟通其A1、A2口,同时将总风经A2口压力输出到第一切换阀、第二切换阀和第三切换阀的控制口C1口,并输出低电平信号。本发明解决机车电空制动故障后不能实时切换的技术问题。


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    Title :

    Air backup braking system and locomotive


    Additional title:

    空气后备制动系统及机车


    Contributors:
    LI KAIYE (author) / MAO JINHU (author) / LIU JIE (author) / XIE QIMING (author) / WANG SHUJING (author) / CHEN YUEJUN (author)

    Publication date :

    2024-04-05


    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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