US 11,940,006 B2
Method for changing a sliding bearing element of a rotor bearing of a wind turbine, and nacelle for a wind turbine
Gunther Hager, Micheldorf (AT); and Johannes Sebastian Hoelzl, Berg im Attergau (AT)
Assigned to Miba Gleitlager Austria GmbH, Laakirchen (AT)
Appl. No. 17/295,243
Filed by Miba Gleitlager Austria GmbH, Laakirchen (AT)
PCT Filed Dec. 9, 2019, PCT No. PCT/AT2019/060421
§ 371(c)(1), (2) Date May 19, 2021,
PCT Pub. No. WO2020/118329, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. A 51111/2018 (AT), filed on Dec. 13, 2018.
Prior Publication US 2021/0396271 A1, Dec. 23, 2021
Int. Cl. F03D 80/50 (2016.01); F03D 80/70 (2016.01); F16C 17/10 (2006.01)
CPC F16C 17/10 (2013.01) [F03D 80/50 (2016.05); F03D 80/70 (2016.05); F16C 2237/00 (2013.01); F16C 2300/14 (2013.01); F16C 2360/31 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for changing a sliding bearing element of a rotor bearing of a wind turbine, the method comprising:
providing the rotor bearing, wherein the rotor bearing comprises an inner ring element and an outer ring element, between which the sliding bearing element is arranged, wherein the inner ring element and the outer ring element are rotatable relative to each other, wherein a rotor hub is fastened to the inner ring element or to the outer ring element, wherein the sliding bearing element comprises multiple individual sliding bearing pads, each of which are releasably fastened to the inner ring element or outer ring element of the rotor bearing by means of at least one fastening means;
removing, during the changing of the sliding bearing element, the individual sliding bearing pads one after the other and replacing the individual sliding bearing pads by new sliding bearing pads without disassembling, during the changing of the individual sliding bearing pads of the sliding bearing element, the inner ring element and the outer ring element,
wherein in the course of the changing operation, all of the individual sliding bearing pads are changed, wherein for changing the individual sliding bearing pads, in each case, a sliding bearing pad to be changed is moved into a sliding bearing pad changing position, in which it is not loaded, and
wherein both the inner ring element and the outer ring element are designed to be V-shaped, and a first sliding bearing element and a second sliding bearing element, each having multiple individual sliding bearing pads, are arranged between the two ring elements so as to be axially spaced apart from each other, wherein the two sliding bearing elements are arranged at an angle to one another when viewed in the cross-section, wherein due to a tilting torque acting on the rotor hub, one of the two sliding bearing elements is not loaded at its topmost position and the second of the two sliding bearing elements is not loaded at its bottommost position, which results in the sliding bearing pad changing positions.