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    • 8. 发明授权
    • Backreamer for a tunneling apparatus
    • 挖掘装置的逆流器
    • US08256536B2
    • 2012-09-04
    • US12704316
    • 2010-02-11
    • Stuart HarrisonKeith Allen HoeltingMatthew Stephen Vos
    • Stuart HarrisonKeith Allen HoeltingMatthew Stephen Vos
    • E21B10/30
    • E21B7/20E21B7/04E21B47/0002E21D9/004E21D9/093
    • A backreamer includes a distal end configured for connection to product and a proximal end configured for attachment to a distal end of a drill string. The backreamer includes a backreaming cutter having a cutting side that faces toward the proximal end of the backreamer. The backreamer also includes a proximal assembly that extends between the proximal end of the backreamer and the backreaming cutter. The proximal assembly defines a vacuum passage for removing material cut by the backreaming cutter. The backreamer further includes a drive stem for transferring torque to the backreaming cutter for rotating the backreaming cutter. The drive stem is rotatably supported within the proximal assembly such that the drive stem and the backreaming cutter are rotatable relative to the proximal assembly. The backreamer additionally includes a distal assembly that extends between the backreaming cutter and the distal end of the backreamer. The distal assembly includes a vacuum blocking plate positioned distally with respect to the backreaming cutter. The backreaming cutter and the drive stem are rotatable relative to the vacuum blocking plate.
    • 逆流器包括构造成用于连接到产品的远端和被配置为附接到钻柱的远端的近端。 逆流器包括具有朝向逆流器的近端的切割侧的回流切割器。 反流器还包括在逆流器的近端和后向流切割器之间延伸的近端组件。 近端组件限定用于去除由后向切割器切割的材料的真空通道。 逆向器还包括用于将扭矩传递到用于旋转后向切割器的回流切割器的驱动杆。 驱动杆可旋转地支撑在近侧组件内,使得驱动杆和后退切割器相对于近端组件是可旋转的。 所述后端器还包括远端组件,所述远端组件在所述回流切割器和所述后向流器的远端之间延伸。 远侧组件包括相对于后向切割器向远侧定位的真空阻挡板。 逆流切割器和驱动杆可相对于真空阻挡板旋转。
    • 9. 发明授权
    • Cutting apparatus for a microtunnelling system
    • 微型挖掘系统的切割装置
    • US07942217B2
    • 2011-05-17
    • US12335232
    • 2008-12-15
    • Andis SalinsStuart Harrison
    • Andis SalinsStuart Harrison
    • E21B10/28E21B10/00
    • E21B7/046E21B7/06E21B7/20E21B17/18E21B21/12
    • The present disclosure relates to a microtunnelling apparatus including a cutting apparatus adapted to be rotated by a drill shaft defining a central axis of rotation that extends along a length of the drill shaft. The cutting apparatus includes a front cutting rotor having a hub defining a shaft receiver that extends at least partially through the hub in a direction extending from a back side toward a front cutting side of the front cutting rotor. The shaft receiver is configured to receive the drill shaft. The drill shaft and the shaft receiver cooperate to define a torque transmitting mechanical interface for allowing torque to be transferred between the drill shaft and the front cutting rotor such that the drill shaft can be used to rotate the front cutting rotor about the central axis of rotation. The front cutting rotor also includes a plurality of cutting bars that project at least partially radially outwardly from the hub. The cutting apparatus further includes a front retainer that mounts at the front cutting side of the front cutting rotor for retaining the front cutting rotor on the drill shaft.
    • 本公开涉及一种微型挖掘装置,其包括切割装置,该切割装置适于由限定沿着钻杆轴的长度延伸的中心旋转轴线的钻杆轴旋转。 切割装置包括前切割转子,其具有限定轴接收器的轮毂,所述轴接收器在从前切割转子的后侧朝向前切割侧的方向上至少部分地延伸穿过轮毂。 轴接收器构造成接收钻杆轴。 钻杆轴和轴接收器配合以限定扭矩传递机械接口,用于允许在钻杆和前切割转子之间传递扭矩,使得钻杆轴可用于围绕中心旋转轴线旋转前切割转子 。 前切割转子还包括从轮毂至少部分地径向向外突出的多个切割杆。 切割装置还包括前保持器,其安装在前切割转子的前切割侧,用于将前切割转子保持在钻轴上。
    • 10. 发明申请
    • Backreamer for a Tunneling Apparatus
    • 隧道掘进机的逆流器
    • US20100206636A1
    • 2010-08-19
    • US12704316
    • 2010-02-11
    • Stuart HarrisonKeith Allen HoeltingMatthew Stephen Vos
    • Stuart HarrisonKeith Allen HoeltingMatthew Stephen Vos
    • E02D29/045E21B10/30
    • E21B7/20E21B7/04E21B47/0002E21D9/004E21D9/093
    • The present disclosure relates to a backreamer including a distal end configured for connection to product and a proximal end configured for attachment to a distal end of a drill string. The backreamer includes a backreaming cutter having a cutting side that faces toward the proximal end of the backreamer. The backreamer also includes a proximal assembly that extends between the proximal end of the backreamer and the backreaming cutter. The proximal assembly defines a vacuum passage for removing material cut by the backreaming cutter. The backreamer further includes a drive stem for transferring torque to the backreaming cutter for rotating the backreaming cutter. The drive stem is rotatably supported within the proximal assembly such that the drive stem and the backreaming cutter are rotatable relative to the proximal assembly. The backreamer additionally includes a distal assembly that extends between the backreaming cutter and the distal end of the backreamer. The distal assembly includes a vacuum blocking plate positioned distally with respect to the backreaming cutter. The backreaming cutter and the drive stem are rotatable relative to the vacuum blocking plate.
    • 本发明涉及一种包括被配置为连接到产品的远端和被配置为附接到钻柱的远端的近端的后端器。 逆流器包括具有朝向逆流器的近端的切割侧的回流切割器。 反流器还包括在逆流器的近端和后向流切割器之间延伸的近端组件。 近端组件限定用于去除由后向切割器切割的材料的真空通道。 逆向器还包括用于将扭矩传递到用于旋转后向切割器的回流切割器的驱动杆。 驱动杆可旋转地支撑在近侧组件内,使得驱动杆和后退切割器相对于近端组件是可旋转的。 所述后端器还包括远端组件,所述远端组件在所述回流切割器和所述后向流器的远端之间延伸。 远侧组件包括相对于后向切割器向远侧定位的真空阻挡板。 逆流切割器和驱动杆可相对于真空阻挡板旋转。