To provide a rail clamp device for a track traveling type machine capable of acquiring stable holding power, lengthening a service life while suppressing uneven wear on a contact surface, and surely pinching both side faces of a rail even at the time of an emergency stop in which a power source is interrupted and even at the time of a power failure.SOLUTION: A rail clamp device includes: clamp arms 21 which can clamp and open both side faces of a rail 4 by a shoe 25; a fluid pressure cylinder 22, at the time of expansion, causing tip parts of the clamp arms 21 to be brought close to each other and causing the shoe 25 to be brought into pressure contact with both side faces of the rail 4, on the other hand, at the time of contraction, causing the tip parts of the clamp arms 21 to be separated from each other and causing the shoe 25 to be opened from both the side faces of the rail 4; and a fluid pressure unit 50, at the time of normal operation, accumulating pressured work fluid while expanding and contracting the fluid pressure cylinder 22 by introducing the working fluid into the fluid pressure cylinder 22, on the other hand, at the time of an emergency stop in which a power source is interrupted and at the time of a power failure, causing the accumulated working fluid to be introduced into the fluid pressure cylinder 22 and causing the fluid pressure cylinder 22 to be expanded.SELECTED DRAWING: Figure 3

    【課題】安定した保持力を得ることができ且つ接触面の偏摩耗を抑えて寿命延長を図ることができ、電源遮断される非常停止時及び停電時にもレールの両側面を確実に挟持し得る軌道走行式機械のレールクランプ装置を提供する。【解決手段】シュー25によりレール4の両側面を挟持・開放自在なクランプアーム21と、伸長時にクランプアーム21の先端部を互いに近接させてシュー25をレール4の両側面に圧接させる一方、収縮時にクランプアーム21の先端部を互いに離反させてシュー25をレール4の両側面から開放させる流体圧シリンダ22と、通常運転時には流体圧シリンダ22へ作動流体を導入することにより流体圧シリンダ22を伸縮させつつ蓄圧する一方、電源遮断される非常停止時及び停電時には蓄圧した作動流体を流体圧シリンダ22へ導いて流体圧シリンダ22を伸長させる流体圧ユニット50とを備える。【選択図】図3


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    Title :

    RAIL CLAMP DEVICE FOR TRACK TRAVELING TYPE MACHINE


    Additional title:

    軌道走行式機械のレールクランプ装置


    Contributors:

    Publication date :

    2018-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



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