Patent ID: 9284949
Filing Date: 2016-03-15
CPC Classification: F03D,F05B,F16C,Y02E,Y02P

Claim Text:
1. A wind turbine bearing arrangement that is a main bearing for a rotor hub 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 by a distance of at least 0.35 times a maximal bearing diameter that ranges from 2 m to 3.5 m and each having an inner bearing ring and an outer bearing ring, wherein the tower-side bearing is clamped between fixed bearing seats on the stator unit and the rotor unit and wherein the rotor-side bearing is clamped between a clamping ring and only one fixed bearing seat on either the stator unit or the rotor unit, such that 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, wherein the inner bearing ring or the outer bearing ring is a bearing clamping ring and wherein the rotor-side bearing is smaller than the tower-side bearing; and a mechanical adjusting device having the clamping ring via which a preload on the bearing clamping ring is changeable relative to the base preload such that a preload of the rotor-side bearing and tower-side bearings are adjustable via the preload-circuit, wherein the mechanical adjusting device is arranged such that the preload is variable relative to the base preload following initial assembly in a static or dynamic manner.