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1. 发明授权

US06942046B2 Bore bit for very hard material 失效
标题翻译：钻头非常硬的材料
公开(公告)号：US06942046B2
公开(公告)日：2005-09-13
申请号：US10271907
申请日：2002-10-15
申请人： Stéphane Binon , Benoit Quandalle , Olivier Vacher , Germain Viroles
发明人： Stéphane Binon , Benoit Quandalle , Olivier Vacher , Germain Viroles
IPC分类号： E21B6/06 , E21B10/36 , E21B10/62
CPC分类号： E21B6/06 , E21B10/36 , E21B10/62
摘要： An apparatus including a bore bit comprising a bottom part having an active bottom face and a top face substantially parallel to the active face; a top part fixed to suspension cables and having a bottom face facing the top face of the bottom part; a member for limiting the maximum spacing between the two parts; a cylindrical axial bore passing through both parts; a cylindrical guide penetrating into said bore; and at least one ramp-forming recess and at least one ramp-forming extension for co-operating with said ramp-forming recess in such a manner that movement of the top part towards the bottom part is converted into rotary movement of said top part about the vertical axis, with the end of said rotary movement of the top part imparting rotary movement to the bottom part.
摘要翻译：一种包括钻头的装置，包括具有活动底面的底部和基本上平行于活动面的顶面; 固定在吊索上并具有面向底部顶面的底面的顶部; 用于限制两个部分之间的最大间距的构件; 通过两个部分的圆柱形轴向孔; 贯穿所述孔的圆柱形引导件; 以及至少一个斜坡形成凹部和至少一个斜坡形成延伸部，用于与所述斜坡形成凹槽协作，使得顶部朝向底部的运动转换成所述顶部部分的旋转运动，围绕垂直轴，顶部的所述旋转运动的结束将旋转运动赋予底部。

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