Bearing arrangement of a wind turbine and method for adjusting the preload of a bearing arrangement
AssigneeEolotec GmbH
InventorsMathias PICK, Wolfgang LOSERT
Life of this patent
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Abstract
To facilitate adjusting a bearing arrangement, particularly in a wind turbine, for different operating situations, the bearing arrangement has an adjusting device with which the bearing preload can be adjusted starting from a base preload. This can allow, for example signs of wear to be compensated, manufacturing tolerances or design inaccuracies to be corrected and in particular current loading states to be addressed. This design avoids the otherwise usual overdimensioning of the bearing arrangement, thereby increasing the efficiency of the wind turbine as well as the service life of the bearing arrangement.
Claims20
A wind turbine bearing arrangement that is a main bearing for a rotor of a wind turbine, the arrangement comprising:
- a stator unit;
- a rotor unit, the stator unit and rotor unit are mounted on one another via a rotor-side bearing and a tower-side bearing, the rotor side bearing and the tower-side bearing being arranged spaced apart from one another and each having an inner bearing ring and an outer bearing ring, wherein a preload-circuit is formed by the rotor-side and tower-side bearings and by the stator unit, wherein a base preload is set during assembly via the preload-circuit, and wherein the inner bearing ring or outer bearing ring is as bearing clamping ring;
- and
- an adjusting device having a clamping ring via which a preload on the bearing clamping ring is changeable relative to a base preload such that a preload of the rotor-side bearing and tower-side bearings are adjustable via the preload-circuit.
A wind turbine bearing arrangement that is a main bearing for a rotor of the wind turbine, the arrangement comprising at least one bearing for bearing a rotor unit on a stator unit, the bearing having two bearing rings, which include an inner ring and an outer ring, the two bearing rings being clamped against one another with a base preload, wherein the preload of the bearing is varied relative to the base preload by an adjusting device, the adjusting device having a clamping ring comprising two ring parts, the two ring parts being a retaining ring part and a clamping ring part, the retaining ring part being clamped against the stator unit or the rotor unit by a fastening element and the clamping ring part being connected to the bearing clamping ring for transferring the preload.
Dependencies are inferred from the claim text.