초록 ▼

A device is provided for the adjustment of the pitch of a rotor blade of a wind turbine comprising a pitch actuator acting on an adjusting plane for the adjustment of the pitch and a fixing device to which the pitch actuator is attached, the fixing device comprises a first and a second bearing shaft

A device is provided for the adjustment of the pitch of a rotor blade of a wind turbine comprising a pitch actuator acting on an adjusting plane for the adjustment of the pitch and a fixing device to which the pitch actuator is attached, the fixing device comprises a first and a second bearing shaft allowing a pendulum motion of the pitch actuator wherein both the first and the second bearing shaft are arranged respectively under a certain tilt angle relatively to the adjusting plane which tilt angle is respectively substantially different from 0° or 90°.

대표청구항 ▼

1. A device for the adjustment of the pitch of a rotor blade of a wind turbine, comprising: a pitch actuator acting on a pitch adjusting plane at a hub of the wind turbine; anda fixing device to which the pitch actuator is attached, and said fixing device is provided for an attachment to the hub,whe

1. A device for the adjustment of the pitch of a rotor blade of a wind turbine, comprising: a pitch actuator acting on a pitch adjusting plane at a hub of the wind turbine; anda fixing device to which the pitch actuator is attached, and said fixing device is provided for an attachment to the hub,wherein the fixing device comprises a first and a second bearing shaft allowing a pendulum motion of the pitch actuator relatively to the fixing device, andwherein both the first and the second bearing shaft are arranged respectively under a certain tilt angle relatively to the adjusting plane, wherein said tilt angle is respectively substantially different from 0° or 90°. 2. The device according to claim 1, wherein the pitch actuator is a hydraulic pitch cylinder or an electric pitch actuator. 3. The device according to claim 1, wherein the first and the second bearing shaft are arranged substantially perpendicularly relatively to each other. 4. The device according to claim 1, wherein the first and the second bearing shaft are arranged substantially in a common plane. 5. The device according to claim 1, wherein the first and/or the second bearing shaft are arranged substantially under a tilt angle within the range of +10° to +80° or −10° to −80° relatively to the adjusting plane. 6. The device according to claim 1, wherein the first or the second bearing shaft are arranged substantially under a tilt angle within the range of +10° to +80° or −10° to −80° relatively to the adjusting plane. 7. The device according to claim 1, wherein the first bearing shaft is arranged substantially under a −45° tilt angle relatively to the adjusting plane and wherein the second bearing shaft is arranged substantially under a +45° tilt angle relatively to the adjusting plane, wherein an angular rotation of the pitch actuator is divided equally on both of the bearing shafts. 8. The device according to claim 1, wherein at least two bearings are assigned to the first bearing shaft wherein the two bearings of the first bearing shaft are attached to a ring element of the fixing device. 9. The device according to claim 1, wherein at least two bearings are assigned to the second bearing shaft wherein the two bearings of the second bearing shaft are attached to a ring element of the fixing device connected respectively to a bearing part of the bearings of the first bearing shaft. 10. The device according to claim 1, wherein at least one bearing is a plain bearing. 11. The device according to claim 1, wherein the fixing device comprises a flange.