Nacelle main frame structure and drive train assembly for a wind turbine

摘要

A nacelle main frame structure and drive train assembly (1) for being mounted on a tower (2) of a wind turbine. The nacelle main frame structure and drive train assembly (1) comprises a nacelle main frame structure (4) with a central part (6) connecting a first part (7) to a second part (8). The first part (7), during wind turbine operation and/or servicing activities, takes up loads of a rotor (9). A drive train (5) is at least partially located between the first and second parts (7, 8). The central part (6) of the main frame structure (4) is located substantially above at least part of the drive train (5) and is such that at least part of the drive train (5) can only be removed from the main frame structure (4) by lowering at least part of the drive train (5) from the main frame structure (4).

主权项

1. A nacelle main frame structure and drive train assembly (1) for being mounted on a tower (2) of a wind turbine having a rotor which rotates about a longitudinal axis, the nacelle main frame structure and drive train assembly (1) comprising:
the nacelle main frame structure (4) which comprises a first part, a second part, and a central part (6), in sequence along the longitudinal axis the first part (7) is connected to the central part which is connected to the second part, the first part of the nacelle main frame structure supports the rotor such that the first part takes up loads of the rotor during at least one of wind turbine operation and servicing activities, and the rotor (9) is connected to a drive train, the second part (8) of the nacelle main frame structure (4) is connected to the tower (2) of the wind turbine such that the second part and the nacelle main frame structure rotate about a vertical axis defined by the tower (2), and the central part of the nacelle main frame structure and at least a portion of the drive train (5) are located along the longitudinal axis between the first part (7) and the second part (8) of the nacelle main frame structure (4), wherein the central part (6) of the nacelle main frame structure (4) is located, with reference to the vertical axis, substantially above at least part of the drive train (5) and is arranged such that at least part of the drive train (5) is removed from the nacelle main frame structure (4) by lowering at least part of the drive train (5) vertically downward from the central part of the nacelle main frame structure (4).