Drawworks

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B - Operations, Transporting

66

D

B66D 1/22 (2006.01)

Patent

CA 2540257

The invention relates to a lifting mechanism comprising a rotatably mounted drum (5) for winding a traction element (4). Said element can be rotated by means of a rotary drive unit (19) comprising at least one rotary drive motor (21, 22) that acts on the drum (5) by means of a multi-speed summation gear (20).

L'invention concerne un mécanisme de levage comprenant un tambour (5) monté de façon rotative, ce tambour (5) servant à enrouler un moyen de traction (4). Ledit tambour (5) peut être entraîné en rotation par un dispositif d'entraînement en rotation (19) comprenant au moins un moteur d'entraînement en rotation (21, 22) agissant sur le tambour (5) par l'intermédiaire d'au moins une boîte totalisatrice à plusieurs vitesses (20).

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