Pipe spinner

Details Pipe spinner Pipe spinner

E - Fixed Constructions

21

B

E21B 19/16 (2006.01) B25B 13/52 (2006.01)

Patent

CA 2475892

Methods and apparatus for spinning a pipe using a flexible belt. The spinner utilizes a single actuation mechanism contained within a rigid body to engage the pipe and tension the belt. The pipe is engaged by one or more pivoting arms that are locked into place by pins attached to the actuation mechanism interfacing with slots in the pivoting arm and spinner body. Once the arms are locked in place, the belt is tensioned and can be driven to rotate the pipe. The single actuation mechanism is preferably embodied by a linear actuator connected between a pivoting arm and a moveable motor. The pivoting arm is spring biased so that the arm pivots before the motor is moved. The spinner may use two pivoting arms, or one pivoting arm and one stationary arm.

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