A secondary locking device, comprising a first transmission shaft (1), a second transmission shaft (2), a clutch, a pressure mechanism and a reset mechanism; under the pressure of the pressure mechanism, the clutch enables the first transmission shaft (1) to separate from the second transmission shaft (2); and under the action of the reset mechanism, the clutch enables the first transmission shaft (1) to engage with the second transmission shaft (2). The secondary locking device can be used for the bottom door of a hopper car, so that the bottom door of the hopper car opening and closing after passing over dead center in a flat four-bar linkage is more reliable.


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    Title :

    Secondary locking device, hopper car bottom door and hopper car


    Contributors:
    SHI CHUNJIANG (author) / SUN MINGDAO (author) / JIANG QIANGJUN (author) / LIU FENGWEI (author) / WANG BAOLEI (author) / LIU WENLIANG (author) / TANG CHUQIANG (author) / JIANG RUIJIN (author) / LIN LIANGCAI (author) / FU TIEJUN (author)

    Publication date :

    2017-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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