Wind turbine nacelle with integral service crane for...

B - Operations – Transporting – 66 – C

Patent

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Details

B66C 23/18 (2006.01) B66C 23/02 (2006.01) F03D 11/00 (2006.01)

Patent

CA 2598505

A service crane for a wind turbine comprising a main crane beam (128) having a track (154) that accommodates a trolley (156). A hinge (144) is provided at a pivot point (148) near a proximate end of the main beam (128), such that an aft portion of the main beam (128) extends beyond the pivot point (148) to the exterior of the turbine. A distal end of the main beam (128) rests upon a forward beam. A lateral motion actuator (134) moves the main beam (128) back and forth along the forward beam. The trolley (156) runs back and forth along the main beam (128). A turbine component is attached to a hook lowered by cable from the trolley (156). The trolley (156) with the component on the hook is moved to the aft portion of the main beam (128), which extends beyond the turbine. The hook is lowered to the ground so that the component can be serviced or replaced.

L'invention concerne une grue d'entretien pour éolienne comportant une flèche principale (128) de grue dotée de rails (154) qui reçoivent un chariot (156). Une articulation (144) est installée en un point (148) de pivotement proche de l'extrémité proximale de la flèche principale (128), de sorte qu'une partie arrière de la flèche principale (128) s'étend au-delà du point (148) de pivotement vers l'extérieur de l'éolienne. Une extrémité distale de la flèche principale (128) repose sur une poutre avant. Un actionneur (134) de mouvement latéral déplace la flèche principale (128) dans les deux sens le long de la poutre avant. Le chariot (156) se déplace dans les deux sens le long de la flèche principale (128). Un composant d'éolienne est fixé à un crochet abaissé par câble à partir du chariot (156). Le chariot (156) portant le composant sur le crochet est déplacé vers la partie arrière de la flèche principale (128), qui s'étend au-delà de l'éolienne. Le crochet est abaissé jusqu'au sol afin que le composant puisse être entretenu ou remplacé.

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