Abstract: A measuring system and an associated measuring method for measuring a stator of a gearless wind power installation, wherein the measuring system has an air gap measuring unit and a position determination unit, wherein the air gap measuring unit has a holding apparatus and a distance sensor, wherein the holding apparatus is set up to mount the air gap measuring unit on a rotor of the wind power installation, wherein the distance sensor is set up to provide a signal which is indicative of an extent of an air gap between the stator and the rotor, wherein the position determination unit is set up to be mounted on the rotor of the wind power installation and to capture the signal from the distance sensor during a rotation of the rotor at a plurality of revolution positions. The measuring system and the associated measuring method make it possible to measure a stator in a simplified manner.

Abstract: A flange connection for a wind turbine, in particular a blade flange connection, having—a first flange part, in particular a blade receptacle of a rotor blade hub, a second flange part, in particular a rotor blade flange, and multiple bolts which hold the second component against the first flange part in a connected state, wherein the bolts are each screwed to the first flange part. It is proposed that the at least two bolts are in each case connected to one another by a tension means, a sensor arrangement, which detects a change in a tensile force transmitted by the tension means, being actively connected to the tension means. A wind turbine and a method for monitoring the flange connection of the wind turbine are also proposed.

Abstract: A gear arrangement, in particular for a rotary connection of a wind turbine, comprising a first gear, a second gear in engagement with the first gear, wherein in the engaged position a gap space is provided between a first tooth and a second tooth of the first gear and a tooth of the second gear, and a sealing element which seals off the gap space to prevent lubricant escape.

Abstract: A measuring system and an associated measuring method for measuring a stator of a gearless wind power installation, wherein the measuring system has an air gap measuring unit and a position determination unit, wherein the air gap measuring unit has a holding apparatus and a distance sensor, wherein the holding apparatus is set up to mount the air gap measuring unit on a rotor of the wind power installation, wherein the distance sensor is set up to provide a signal which is indicative of an extent of an air gap between the stator and the rotor, wherein the position determination unit is set up to be mounted on the rotor of the wind power installation and to capture the signal from the distance sensor during a rotation of the rotor at a plurality of revolution positions. The measuring system and the associated measuring method make it possible to measure a stator in a simplified manner.

Abstract: A gear arrangement, in particular for a rotary connection of a wind turbine, comprising a first gear, a second gear in engagement with the first gear, wherein in the engaged position a gap space is provided between a first tooth and a second tooth of the first gear and a tooth of the second gear, and a sealing element which seals off the gap space to prevent lubricant escape.

Abstract: An apparatus for automated machining, such as grinding, cutting and/or deburring, of workpieces, in particular of cast components, e.g., of wind turbines. For this purpose, the apparatus comprises a motor spindle for machining the workpiece, the motor spindle having a tool interface for receiving a tool for the machining operation. Moreover, the motor spindle is designed, in particular, to change a tool automatically. In addition, the apparatus comprises a robot for holding and guiding the motor spindle, and a control unit for controlling the motor spindle and the robot. The disclosure additionally relates to a method for automated machining of workpieces.

Abstract: The present invention relates to a method for operating a wind turbine having a rotor with rotor blades and an essentially horizontal rotation axis for generating electrical energy from wind energy. According to the invention, it is proposed for the wind turbine to be aligned such that the azimuth position of the wind turbine departs by an azimuth adjustment angle from an alignment into the wind, and/or that the blade angle of the rotor blades is adjusted in cyclic rotation such as to reduce alternating loads that are caused by a height profile of the wind.

Abstract: The present disclosure concerns a transport vehicle for handling a rotor blade mold for the production of a rotor blade of a wind power installation or a shell portion of a rotor blade of a wind power installation, adapted for use in a handling apparatus. The handling apparatus includes a first rail set for displacement of the transport vehicle in a first direction, and a second rail set for displacement of the transport vehicle in a second direction. In addition the transport vehicle includes a first wheel set including a plurality of wheels for movement on the first rail set, and a second wheel set including a plurality of wheels for movement on the second rail set.