发明名称 |
Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods |
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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申请公布号 |
US7703556(B2) |
申请公布日期 |
2010.04.27 |
申请号 |
US20080133288 |
申请日期 |
2008.06.04 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
SMITH REDD H.;DUGGAN JAMES L.;SINGH ANUPAM K. |
分类号 |
E21B10/36;E21C25/04 |
主分类号 |
E21B10/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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