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    • 8. 发明申请
    • SEISMIC TOOL ASSEMBLY FOR USE IN ANCHOR INSERTION
    • 地震工具装配用于锚栓插入
    • WO2011032283A1
    • 2011-03-24
    • PCT/CA2010/001456
    • 2010-09-15
    • COUSINEAU, Robert
    • COUSINEAU, Robert
    • B23B41/06B23B49/02B23B51/02E21D20/00
    • B23B51/0027B23B2226/75B28D1/146
    • A seismic tool assembly for effecting a drill hole and enlarging a lowermost end thereof whereby an anchor can be set more securely therein. A drill bit is inserted through an opening in a drill stop member, which is mounted on a stabilizer inserted at least partially into the hole. The bit is then inserted through each of the drill stop member and the stabilizer, to attain a drilling position at the lowermost end of the hole. The lower end of the bit has a cutting portion having a cutting radius greater than that of the bit body whereby, when the bit is inserted fully into a lowermost end of the hole and rotated, the cutting portion enlarges the lowermost end, whereby flanged portions of an anchor will rest within the enlarged area, retaining the anchor in place. An upper end of the drill stop member has a narrower opening for receiving the insertion of the bit body therein and the lower end of the drill stop member has an opening greater than that of the upper end, so as to permit limited tilting movement of the bit body within the drill stop member during the drilling process to further enlarge the lowermost end of the hole.
    • 用于实现钻孔并扩大其最下端的地震工具组件,由此锚可以更安全地设置在其中。 钻头通过钻头止动件中的开口插入,钻头止动件安装在至少部分插入孔中的稳定器上。 然后将该钻头插入穿过每个钻头止动件和稳定器,以在孔的最下端获得钻孔位置。 钻头的下端具有切割半径大于钻头体的切削半径的切削部分,由此当钻头完全插入孔的最下端并旋转时,切割部分放大最下端,由此凸缘部分 锚定器将放置在扩大区域内,将锚固定在适当位置。 钻头止动构件的上端具有较窄的开口,用于接收钻头体的插入,并且钻头止动构件的下端的开口大于上端的开口,以便允许有限的倾斜运动 在钻孔过程中钻头停止构件内的钻头体进一步扩大孔的最下端。