Damping device for a percussion rock drilling machine
    1.
    发明公开
    Damping device for a percussion rock drilling machine 失效
    Dämpfungsvorrichtungfüreine Gesteinsschlagbohrmaschine。

    公开(公告)号:EP0265401A2

    公开(公告)日:1988-04-27

    申请号:EP87850288.9

    申请日:1987-09-25

    发明人: Ekwall, Berndt

    IPC分类号: B25D17/24 E21C5/14 E21C3/24

    CPC分类号: B25D17/245 E21B44/08 E21C3/24

    摘要: Damping device for a percussion rock drilling machine. A damper piston (22) and a compressed air cushion in a damping chamber (23) transfer feeding force from the drill machine housing (11) to the drill string (15). A venting valve (51) is arranged for venting the damping chamber (23) after which the damping chamber can be pressurized with a selectable pressure.

    摘要翻译: 冲击凿岩机的阻尼装置。 阻尼室(23)中的阻尼活塞(22)和压缩空气衬垫将进给力从钻机壳体(11)转移到钻柱(15)。 排气阀(51)布置成用于排放阻尼室(23),之后可以用可选择的压力对阻尼室进行加压。

    Damping device for a percussion rock drilling machine
    2.
    发明公开
    Damping device for a percussion rock drilling machine 失效
    用于冲击钻机的阻尼装置

    公开(公告)号:EP0265401A3

    公开(公告)日:1990-01-10

    申请号:EP87850288.9

    申请日:1987-09-25

    发明人: Ekwall, Berndt

    IPC分类号: B25D17/24 E21C5/14 E21C3/24

    CPC分类号: B25D17/245 E21B44/08 E21C3/24

    摘要: Damping device for a percussion rock drilling machine. A damper piston (22) and a compressed air cushion in a damping chamber (23) transfer feeding force from the drill machine housing (11) to the drill string (15). A venting valve (51) is arranged for venting the damping chamber (23) after which the damping chamber can be pressurized with a selectable pressure.

    摘要翻译: 冲击凿岩机的阻尼装置。 阻尼室(23)中的阻尼活塞(22)和压缩空气衬垫将进给力从钻机壳体(11)转移到钻柱(15)。 排气阀(51)布置成用于排放阻尼室(23),之后可以用可选择的压力对阻尼室进行加压。