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    • 3. 发明申请
    • MICROTUNNELLING SYSTEM AND APPARATUS
    • 麦克风系统和装置
    • WO2007143773A1
    • 2007-12-21
    • PCT/AU2006/001122
    • 2006-08-08
    • AXIS MICROTUNNELLING PTY LTDSALINS, AndisHARRISON, Stuart
    • SALINS, AndisHARRISON, Stuart
    • E21B7/08E21B7/04E21B7/20E21B7/30E21B10/00E21B12/00E21B21/12E21D9/08E21B7/28E21B17/18
    • E21B7/046E21B7/06E21B7/20E21B17/18E21B21/12
    • A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section (20) having drill rotor (21) and drill rod (22) and connecting to intermediate drill rods (41) allowing extension of the boring hole created by the drill head section driven by the drive system. The drill head (20) includes a modular construction having a plurality of circular disc like elements, a bearing module M1, a steering module M2, a spacer module M3, and a mounting module M4, for axial alignment and abutment and mounting within a cylindrical steering shell M6. Directional steering of the drill head (20) includes a plurality of substantially radially extending channels in steering module M2, each with an hydraulically movable protuberance movable by control means to redirect the outer steering casing M6 and thereby redirect the drill head section mounted on the distal end of the drill rods.
    • 一种微型挖掘装置和系统,其包括具有旋转和线性推力驱动装置的外部驱动系统,具有钻头转子(21)和钻杆(22)并连接到中间钻杆(41)的钻头部分(20) 由钻头头部分由驱动系统驱动的钻孔。 钻头(20)包括具有多个圆盘形元件的模块化结构,轴承模块M1,转向模块M2,间隔件模块M3和安装模块M4,用于轴向对准和抵接并安装在圆柱形 转向壳M6。 钻头(20)的定向转向在转向模块M2中包括多个基本上径向延伸的通道,每个通道具有可由控制装置移动的液压可移动突起,以重定向外转向壳体M6,从而重定向安装在远端 钻杆末端。