Abstract: A wind turbine rotary connection for two wind turbine components which are rotatable relative to each other, having a combined axial-radial bearing, wherein the axial-radial bearing has an axial bearing component and a separate radial bearing component. In particular it is proposed that the axial bearing component is in the form of a plain bearing component having a first convexly curved bearing surface and a corresponding second concavely curved bearing surface.

Abstract: A wind power installation rotary connection, in particular a blade bearing or azimuth rotary connection, wherein the rotary connection is in the form of a plain bearing assembly, comprising an inner ring having a number of first plain bearing surfaces, an outer ring having a number of second plain bearing surfaces which are respectively associated with one of the first plain bearing surfaces as a plain bearing surface partner, and wherein the plain bearing assembly is in the form of a dry-running plain bearing assembly.

Abstract: A wind turbine including a rotor blade hub, a generator, and a magnetic transmission which is connected at the drive side to the rotor blade hub and at the driven side to the generator. The magnetic transmission is in the form of a multi-stage, in particular two-stage, magnetic transmission.

Abstract: A nacelle for a wind power installation, a rotor for a wind power installation, a wind power installation, use of a planetary-gearbox-free electric actuator drive, a method for wind direction tracking of a nacelle, and a method for rotor blade adjustment of rotor blades of a rotor are provided. Provided is a nacelle for a wind power installation, in particular a wind power installation having a nominal output of more than 3000 kilowatts (kW), having at least one azimuth drive which is used for the wind direction tracking of the nacelle and which is configured as a planetary-gearbox-free electric actuator drive.

Abstract: A wind turbine rotary connection for two wind turbine components which are rotatable relative to each other, having a combined axial-radial bearing, wherein the axial-radial bearing has an axial bearing component and a separate radial bearing component. In particular it is proposed that the axial bearing component is in the form of a plain bearing component having a first convexly curved bearing surface and a corresponding second concavely curved bearing surface.

Abstract: A wind-turbine rotor blade, comprising a blade root and a blade tip, a flange arranged on the blade root side for fastening the rotor blade to a rotor hub of a wind turbine, and a pitch bearing for adjusting the angle of attack of the rotor blade. The rotor blade has a non-pitched carrier, on which the flange is embodied, wherein the pitch bearing is fastened to the carrier and is spaced apart from the flange toward the blade tip.

Abstract: A wind turbine comprising a rotor blade hub, a generator and a magnetic transmission which is connected at the drive side to the rotor blade hub and at the driven side to the generator. The magnetic transmission is in the form of a multi-stage, in particular two-stage, magnetic transmission.

Abstract: A wind power installation comprising one or more rotor blades, a rotor hub to which the rotor blade or blades are mounted, and a generator for generating electrical power, wherein the generator has a generator stator and a generator rotor which is non-rotatably connected to the rotor hub and which is rotatable about an axis, wherein the rotor hub and the generator rotor have a common main bearing system or means which is subdivided into two bearing portions which are spaced from each other in the direction of the axis, wherein in that the first bearing portion has a first radial plain bearing and a first axial plain bearing and the second bearing portion has a second radial plain bearing and a second axial plain bearing.

Abstract: A wind power installation comprising one or more rotor blades, a rotor hub to which the rotor blade or blades are mounted, and a generator for generating electrical power, wherein the generator has a generator stator and a generator rotor which is non-rotatably connected to the rotor hub and which is rotatable about an axis, wherein the rotor hub and the generator rotor have a common main bearing system or means which is subdivided into two bearing portions which are spaced from each other in the direction of the axis, wherein in that the first bearing portion has a first radial plain bearing and a first axial plain bearing and the second bearing portion has a second radial plain bearing and a second axial plain bearing.

Abstract: A nacelle for a wind power installation, a rotor for a wind power installation, a wind power installation, use of a planetary-gearbox-free electric actuator drive, a method for wind direction tracking of a nacelle, and a method for rotor blade adjustment of rotor blades of a rotor are provided. Provided is a nacelle for a wind power installation, in particular a wind power installation having a nominal output of more than 3000 kilowatts (kW), having at least one azimuth drive which is used for the wind direction tracking of the nacelle and which is configured as a planetary-gearbox-free electric actuator drive.

Abstract: A method of mounting components of a wind turbine which has a plurality of components. At least one of the components is mounted by means of a crane. Position and/or distance information in respect of the component to be mounted is detected by means of a laser scanning unit. The CAD data of the components to be mounted is compared to the detected position and/or distance information for exactly determining position and/or distance of the component to be mounted. The detected position and/or distance information is output to a crane operator. The crane can be controlled based on the detected position and/or distance information of the component to be mounted.

Abstract: A wind power installation rotary connection, in particular a blade bearing or azimuth rotary connection, wherein the rotary connection is in the form of a plain bearing assembly, comprising an inner ring having a number of first plain bearing surfaces, an outer ring having a number of second plain bearing surfaces which are respectively associated with one of the first plain bearing surfaces as a plain bearing surface partner, and wherein the plain bearing assembly is in the form of a dry-running plain bearing assembly.

Abstract: A connecting element for connecting tower portions of a wind turbine, to a tower portion, to a tower and to a wind turbine and also to a method for producing a tower portion and to a method for connecting tower portions. The connecting element comprises a fastening surface which has the form of a segment of a circumferential surface of the tower and is designed to be arranged on a circumferential surface of a tower portion, and also comprises a connecting surface which is arranged at an angle to the fastening surface and which has receptacles for receiving fastening elements.

Abstract: A wind-turbine rotor blade, comprising a blade root and a blade tip, a flange arranged on the blade root side for fastening the rotor blade to a rotor hub of a wind turbine, and a pitch bearing for adjusting the angle of attack of the rotor blade. The rotor blade has a non-pitched carrier, on which the flange is embodied, wherein the pitch bearing is fastened to the carrier and is spaced apart from the flange toward the blade tip.

Abstract: A system for early error detection in a wind generator drive system includes a first rotation sensor that is coupled to an input shaft of a drive gear or transmission stage to capture an input angle of rotation. A second rotation sensor is coupled to an output shaft of the drive gear or transmission stage to capture an output angle, which is performed in response to the input angle. A control unit is configured to simultaneously capture a first and a second time dependent signal, which are indicative of the input angle and the output angle, respectively. The control unit is configured to determine a time dependent angle difference from the first and the second signals under consideration of a transmission ratio of the drive gear or transmission stage, and analyzes this difference to perform early error detection in the drive system.

Abstract: A hybrid shaft bearing, a wind generator comprising the hybrid shaft bearing, a use of the hybrid shaft bearing, and a method of operating the hybrid shaft bearing is provided. The hybrid shaft bearing comprises a hydrodynamic friction bearing and a rolling bearing. Both the hydrodynamic friction and rolling bearings cooperate with a support structure and rotatably support a shaft. The hydrodynamic friction bearing is a passive hydrodynamic bearing.

Abstract: A test unit for quantitative analysis of a contact pattern and a method for quantitative analysis are provided. The test unit comprises an optoelectronic sensor that captures images of a contact pattern paint on a tooth surface of a gear. Furthermore, the test unit comprises a control unit, which is configured to determine and store a first distribution of an optical parameter of the contact pattern paint across the tooth surface from the first image. This is captured prior to testing of the gear. After the tooth surface is exposed to a test load, a second image is captured and a second distribution of the optical parameter is determined. The control unit is configured to perform a quantitative analysis of a contact pattern on the tooth surface by determining a deviation between the first and the second distribution of the optical parameter.

Abstract: A hybrid shaft bearing, a wind generator comprising the hybrid shaft bearing, a use of the hybrid shaft bearing and a method of operating the hybrid shaft bearing is provided. The hybrid shaft bearing comprises a hydrodynamic friction bearing and a rolling bearing. Both the hydrodynamic friction and rolling bearings cooperate with a support structure and rotatably support a shaft. The hydrodynamic friction bearing is a passive hydrodynamic bearing.