Pipeline rotation system

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 1/024 (2006.01)

Patent

CA 2488958

A pipe rotation device having a pair of rollers supported by a frame that can move vertically relative to a base supporting the frame. A pipe normally supported by a supporting member is vertically hoisted by the rollers upon vertical movement of the frame. A pair of ratchets are pivotally connected to the rollers at one respective end and have a connection therebetween at the other respective ends such that movement of the connection therebetween by an extendable device imparts rotary motion of the rollers for rotating the pipe. A brake inhibits back-rotation during the return of the ratchets to their original positions for subsequent rotation.

Il s'agit d'un dispositif de rotation de tuyaux pourvu d'une paire de galets supportés par un bâti qui peut se déplacer verticalement par rapport à une base soutenant le bâti. Un tuyau soutenu habituellement par un élément de support est hissé verticalement par les galets, lors du mouvement vertical du bâti. Une paire de cliquets sont raccordés par pivotement aux galets, à une extrémité respective, et ont un raccordement entre les deux, aux autres extrémités respectives. Ainsi, le mouvement du raccordement entre les deux par un dispositif extensible, applique aux galets un mouvement rotatif pour faire tourner le tuyau. Un frein empêche la contre- rotation lors du retour des cliquets à leurs positions d'origine, pour une rotation subséquente.

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