发明公开
- 专利标题: DRILL ROD HANDLING SYSTEM FOR MOVING DRILL RODS TO AND FROM AN OPERATIVE POSITION
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申请号: EP14876854申请日: 2014-12-29
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公开(公告)号: EP3090121A4公开(公告)日: 2017-12-06
- 发明人: WRIGHT CHRISTOPHER ALLEN , MARKHAM ANTHONY CHARLES WILLIAM
- 申请人: LONGYEAR TM INC
- 专利权人: LONGYEAR TM INC
- 当前专利权人: LONGYEAR TM INC
- 优先权: US201361921830 2013-12-30; US201462052712 2014-09-19
- 主分类号: E21B19/15
- IPC分类号: E21B19/15 ; E21B3/00 ; E21B3/02 ; E21B19/06 ; E21B19/16 ; E21B19/20 ; E21B19/24
摘要:
A drill head assembly for receiving a drill rod in an operative position. The drill head assembly has a chuck and cradle configured for movement between a first position and a second position. In the first position, the longitudinal axis of the chuck is substantially parallel to the longitudinal axis of a drill mast. In the second position, the longitudinal axis of the chuck is substantially perpendicular to the longitudinal axis of the drill mast. From the first position, the cradle is configured for sequential axial and then pivotal movement relative to the transverse axis to reach the second position, with pivotal movement being restricted until axial movement is completed. Drill rod handling systems having such drill head assemblies, and methods of using such drill head assemblies, are also disclosed.
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