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    • 1. 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。
    • 2. 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。