发明申请
- 专利标题： METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH-BORING TOOL INCLUDING A LOAD BEARING JOINT AND TOOLS FORMED BY SUCH METHODS
- 专利标题（中）： 将山体连接到地球工具的方法，包括用这种方法形成的负载轴承和工具
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申请号： US12133288申请日： 2008-06-04
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公开(公告)号： US20090301787A1公开(公告)日： 2009-12-10
- 发明人: Redd H. Smith , James L. Duggan , Anupam K. Singh
- 申请人： Redd H. Smith , James L. Duggan , Anupam K. Singh
- 申请人地址： US TX Houston
- 专利权人： BAKER HUGHES INCORPORATED
- 当前专利权人： BAKER HUGHES INCORPORATED
- 当前专利权人地址： US TX Houston
- 主分类号： E21B10/00
- IPC分类号： E21B10/00 ; B23P11/00
摘要：
Earth-boring rotary drill bits including a bit body attached to a shank assembly at a joint. In some embodiments, the joint may be configured to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference at the joint. In additional embodiments, the joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit. Methods for attaching a shank assembly to a bit body of an earth-boring rotary drill bit include configuring a joint to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference. Additional embodiments include configuring a joint to carry a selected portion of any tensile longitudinal load applied to the drill bit by mechanical interference.
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