发明授权
- 专利标题: Power tong
- 专利标题(中): 动力钳
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申请号: US13367305申请日: 2012-02-06
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公开(公告)号: US08863621B2公开(公告)日: 2014-10-21
- 发明人: Allan Stewart Richardson
- 申请人: Allan Stewart Richardson
- 代理机构: Oyen Wiggs Green & Mutala LLP
- 主分类号: B25B13/50
- IPC分类号: B25B13/50 ; E21B19/16
摘要:
A power tong includes a rotor, driven by a primary drive, for spinning and torquing threaded connections of a tubular gripped in the rotor. A grip in the rotor grips the tubular. A serpentine member supplies power to actuate the grip. The serpentine member is driven by a secondary drive. The primary and secondary drives are mounted on a stator frame. The rotor is rotatably mounted to the stator frame and driven by the primary drive during continuous three hundred and sixty degrees of rotation. A fixed or backup jaw may also be mounted to the stator frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grip on the rotor grips the opposite side of the tubular joint. High torque low-rotational speed applied to the rotor torques the joint. Low torque high-rotational speed applied to the rotor spins the joint.
公开/授权文献
- US20120272792A1 POWER TONG 公开/授权日:2012-11-01
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