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DK-1型机车电空制动机自SS1405号电力机车起已批量装车。其中DK型空气制动阀(俗称小闸)具有双重功能:在正常的电空操纵时,只具有单独控制机车的制动和缓解作用,即与一般的单独制动阀功能相似,在电空操纵一旦有故障后转入空气操纵时,该阀能控制全列车的制动和缓解作用,即具有自动制动阀的功能。为使该阀既保证双重功能又不使结构过于复杂,在空气位操纵时,除保证常用制动、保压和缓解性能外,还具备机车的单缓作用,以满足运行的需要,为此增设手压排气阀。
DK-1 locomotive electro-pneumatic brake since SS1405 electric locomotive has been batch loading. Among them, DK-type air brake valve (commonly known as small gate) has a dual function: in the normal electro-pneumatic control, only a separate control locomotive brake and mitigation, that is, with the general function of separate brake valve, The control can be used to control the braking and mitigating functions of the entire train, ie to function as an automatic brake valve, once the maneuver turns into air maneuver. In order to make the valve not only ensure double functions but also not make the structure too complicated, in the air position control, in addition to guarantee the common brake, packing and easing performance, but also with the locomotive single slow action to meet operational needs, Additional hand pressure relief valve.