US 11,988,189 B2
Flange connection, wind turbine having same, and method for monitoring same
Rainer Schlüter, Aurich (DE); Wilko Gudewer, Norden (DE); Ihno Coordes, Ihlow (DE); Frank Knoop, Aurich (DE); and Nico Gloystein, Westerstede (DE)
Assigned to Wobben Properties GmbH, Aurich (DE)
Appl. No. 17/438,797
Filed by Wobben Properties GmbH, Aurich (DE)
PCT Filed Mar. 16, 2020, PCT No. PCT/EP2020/057043
§ 371(c)(1), (2) Date Sep. 13, 2021,
PCT Pub. No. WO2020/183028, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 10 2019 106 580.1 (DE), filed on Mar. 14, 2019.
Prior Publication US 2022/0145848 A1, May 12, 2022
Int. Cl. F03D 17/00 (2016.01); F03D 1/06 (2006.01)
CPC F03D 1/0658 (2013.01) [F03D 17/00 (2016.05); F05B 2260/301 (2013.01); F05B 2260/80 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A flange connection of a rotating component connection of a wind turbine comprising:
a first flange part that is a blade receiver of a hub,
a second flange part that is a rotor blade flange,
a plurality of bolts that, in a connected state, hold the second flange part against the first flange part, wherein the plurality of bolts are each threadedly connected to the first flange part, and
a sensor arrangement,
wherein at least two bolts of the plurality of bolts are operatively connected to one another by a tension means, wherein the sensor arrangement is operatively coupled to the tension means and configured to detect a change in a tensile force transmitted by the tension means,
wherein the sensor arrangement comprises a plug-and-socket connection that conductively connects two signal lines to one another, and
wherein the two signal lines are fixedly coupled to the tension means at two mutually spaced-apart fastening points along the tension means, wherein, starting from respective ones of the two mutually spaced-apart fastening points are signal line portions, wherein a connector element of the plug-and-socket connection is arranged at an end of each signal line portion.