Apparatus for facilitating the connection of tubulars using a top drive
作者： Bernd-Georg Pietras
DOI:
关键词: Control theory 、 Connection (mathematics) 、 Mechanical engineering 、 Top drive 、 Torque 、 Computer science
摘要: An apparatus for facilitating the connection of tubulars using a top drive, which comprises body (2; 102) connectable to said comprising at least one gripping element (5; 105) radially displaceable by hydraulic or pneumatic fluid drivingly engage tubular (30; 110) permit screw between and further be tightened required torque.
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