A lifting arrangement for installing and uninstalling a component (16) of a wind turbine (15) is disclosed. The lifting arrangement comprises main yoke (1) being configured to be attached to a main crane (25), and a hoisting mechanism (2, 11) attached to the main yoke (1). The hoisting mechanism (2, 11) is configured to have a component (16) to be installed or uninstalled attached thereto and to move the component (16) relative to the main yoke (1). At least one connecting part (12) is each configured to establish 2024/067929 a pretensioned connection between the main yoke (1) and a nacelle (14) of the wind turbine (15). The pretension of the at least one connecting part (12) is provided by operating a main crane (25) having the main yoke (1) attached thereto. Methods for installing and uninstalling a component (16) in a nacelle (14), using the lifting arrangement, are also disclosed.

A mounting arrangement for a wind turbine for supporting a drive train on a tower of the wind turbine is provided. The mounting arrangement includes a bedplate that is mounted on the tower. The mounting arrangement further includes a support housing and a coupling device. The support housing accommodates and supports the drive train. The coupling device includes a coupling element for converting a torsional moment about a torsional moment axis, which is applied by the drive train to the support housing, into a supporting force acting in a supporting direction. The coupling device further includes a bearing element for introducing the supporting force from the coupling element into the bedplate. The coupling device is configured to allow displacements of the support housing relative to the bedplate in a transverse direction perpendicular to the torsional moment axis and to the supporting direction.

A mounting arrangement for mounting a drive train on a tower of a wind turbine includes a bedplate mounted on the tower and a main bearing unit. The main bearing unit rotatably supports a rotor shaft of the drive train and radial forces of the rotor shaft. The radial forces include components in a horizontal transverse direction perpendicular to the rotor shaft axis and in a vertical direction perpendicular to the rotor shaft axis and to the horizontal transverse direction. A support housing accommodates and supports components of the drive train, and an auxiliary bearing unit supports the support housing. Coupling elements support the main bearing unit and/or the auxiliary bearing unit on the bedplate. Each coupling element is configured as a rod link which is rotatably mounted at both ends and has a greater rigidity in its longitudinal direction than transverse to its longitudinal direction.

A machine arrangement for rotary transmission of a drive power includes a housing element, a rolling-bearing arrangement including an inner bearing raceway, an outer bearing raceway, rolling bodes designed to roll on the inner and outer bearing raceways, and a bearing cover, and a rotation element held in the housing element via the rolling-bearing arrangement for rotation about an axis of rotation. The housing element has structure regions directed toward the rolling bodies. The inner and outer bearing raceways are formed by a material which is connected integrally to the structure regions respectively and which is applied additively to the structure regions. The bearing cover of the rolling-bearing arrangement is designed to include the structure region which forms the outer bearing raceway.

The present invention relates to a method of assembling a drivetrain for a wind turbine, and a wind turbine and an assembly kit thereof. First fixture elements are secured to first planet carrier of the first gear stage and second fixture elements are secured to the gearbox housing. The respective gear stages of the gearbox unit are pre-assembled, where the first planet carrier is fixed relative to the gearbox housing via the first and second fixture elements. The first ring gear is further fixed relative to the gearbox housing by fastener elements. The pre-assembled gearbox unit is then aligned with the main shaft and moved into position relative to each other. The gearbox housing is mounted to the main bearing housing, and the first planet carrier is released and moved axially into position relative to the flange of the main shaft.