Tall wind turbine tower erection with climbing crane

摘要

A wind turbine tower comprising a forward leaning rotating tower where the tower rotates on lower and upper bearings. The upper bearing is held in position by a second fixed lower tower that encloses a lower portion of the first rotating tower. A method of constructing a wind turbine tower comprising building a tower in segments; including elements of the tower segments enabling the attachment, support, and movement of a climbing crane. Also included is a lifting cable communicating with a ground based winch vehicle. Climbing crane is positioned on the tower to enable the climbing crane to reach forward of the tower and to raise segments of the tower to build it to full height, and to also raise the nacelle and rotor of the wind turbine.

主权项

1. A climbing crane system comprising:
a) a climbing crane frame movably positioned substantially parallel to a tower back edge; b) controllably moveable attachment modules securing the climbing crane frame to the tower back edge, providing the ability to lift a climbing crane up a tower, hold the climbing crane in a stationary position on the tower, or lower the climbing crane down the tower, and said controllably moveable attachment modules also providing the ability to move the climbing crane frame laterally relative to the tower, and to attach and detach the climbing crane frame from the tower; c) a balanced pivoting boom at an upper tip end of said climbing crane frame, which provides and controls a forward reach of said climbing crane for lifting of tower segments, and of components to be lifted to a tower top once the tower is complete; and d) a ground based winch vehicle with a lifting cable connected to the climbing crane for the lifting of the tower segments, and of said components to be lifted to the tower top once the tower is complete.