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    • 1. 发明授权
    • Device for drilling holes in the ground
    • 地下钻孔装置
    • US5133416A
    • 1992-07-28
    • US623714
    • 1990-12-11
    • Petr V. DobroselskyIgor V. Nikolaev
    • Petr V. DobroselskyIgor V. Nikolaev
    • E21B4/14E21B7/26
    • E21B4/145E21B7/26
    • The device for drilling holes in the ground comprises a body (1), a drive and a base member (3), connected with the body by means of a thread (4) and provided a with a lug (7) located on an external side surface (6). The lug (7) is intended for locking the base member (3) relative to the body (1) and is projected beyond the latter. One of the sides (10) is inclined to the generatrix of the side surface (6) of the base member (3) in the direction creating a turning-in moment at the connecting thread. Located on the base member side surface is an additional lug (12) which creates a turning-in moment at the connecting thread in case the device is reversed.
    • PCT No.PCT / SU90 / 00043 Sec。 371 1990年12月11日第 102(e)日期1990年12月11日PCT 1990年2月15日提交PCT公布。 公开号WO90 / 12164 1990年10月18日。用于在地面上钻孔的装置包括主体(1),驱动器和基部构件(3),其通过螺纹(4)与主体连接并且设置有凸耳 (7)位于外侧表面(6)上。 凸耳(7)用于相对于主体(1)锁定基部构件(3)并且突出超过该主体(1)。 其中一个侧面(10)沿着在连接螺纹处产生转向力矩的方向倾斜于基部构件(3)的侧表面(6)的母线。 位于基座构件侧表面上的另外的凸耳(12)在装置反向的情况下在连接螺纹处产生转弯力矩。