Abstract: A dynamoelectric machine includes a shaft, a rotor arranged fixedly on the shaft for conjoint rotation, and a slip ring system enabling a rotor winding system to be contacted electrically and including a slip ring body having slip rings arranged spaced-apart axially behind one another and assigned to an electrical phase. The slip ring body is connected fixedly to the shaft for conjoint rotation and has between an inner side thereof and the shaft a section which forms an axially open cavity on both skies. In a region of the slip ring system, the shaft is hollow with a hollow shaft portion assigned to the slip ring system for routing feed lines to the rotor winding system. Recesses are provided on the cavity axially on an inside and axially on an outside for introducing a cooling medium flow axially into the cavity and discharge thereof into an outlet region.

Abstract: A method for producing a tooth geometry includes selecting a root-side starting contour configured as an ellipse segment and a head-side partial contour of a tooth; selecting an adaptation region for at least a part of the root-side starting contour; determining for the adaptation region a correction specification determined using a correction function configured as an at least third-order polynomial having at least one adjustable function parameter comprising adjustable coefficients; modifying the root-side starting contour using the correction specification to form a root-side final contour, and producing the tooth geometry by chip-removing machining based on the head-side partial contour and the root-side final contour. Also disclosed are a computer program product for carrying out the method, a tool for manufacturing the tooth geometry based on the method, and a machine component having the tooth geometry.

Abstract: A coupling for connection between a first shaft and a second shaft includes a first coupling portion designed for connection to the first shaft, a second coupling portion connected to the first coupling portion for transmitting a drive torque and designed for connection to the second shaft, and a bush accommodated in a through-hole of an axial hub portion of at least one of the first and second coupling portions and made of an electrically non-conductive high-performance plastics material, for receiving the first shaft or second shaft associated with the at least one of the first and second coupling portions, wherein the through-hole has an internal circumference formed with a radial step.

Abstract: A planetary transmission includes first and second planetary stages. At least one of the first and second planetary stages includes a transmission component. The planetary transmission further includes a pilot bearing, and a double-walled pipe received in the pilot bearing and having a central portion designed to have an outlet point for dispensing lubricant into the transmission component. A bushing is disposed in a region of the outlet point such that a gap is formed between the bushing and the transmission component.

Abstract: An electric machine includes a hollow-cylindrical stator and at least two receiving elements, each receiving element at least partially enclosing the stator in a circumferential direction along an inner coverage length and conjointly connected to the stator in the circumferential direction along an inner fastening length. A stator housing is conjointly connected to the receiving elements in the circumferential direction along the outer fastening length. The inner fastening length extends at most along 120° in the circumferential direction, and the outer fastening length extends at most along 200° in the circumferential direction.

Abstract: An arrangement includes a drive-side transmission with an output shaft of the transmission, which extends along an axis. A work machine with a drive shaft is connected in a rotationally fixed manner to the output shaft. To improve stability and to save space, the transmission on the work machine, by the connection between the output shaft and the drive shaft and a torque arm, is supported to the extent of at least 90% of the forces arising during operation. The connection of the output shaft and the drive shaft is configured to be flexurally stiff to support transverse forces. The axial end of the drive shaft is embodied as a hollow shaft. The axial end of the output shaft has a stub which is disposed at least partially in the hollow shaft of the drive shaft.

Abstract: A rotor shaft assembly for a torque-transmitting connection of a gearbox unit to a generator unit includes an output shaft for the gearbox unit, a rotor shaft for the generator unit, and a curved tooth coupling designed to connect the output shaft and the rotor shaft to one another The curved tooth coupling includes a releasably fastened supporting element designed to axially position the curved tooth coupling and including a mating face to support an axial force of the curved tooth coupling, with the mating face being designed to slide on a corresponding support face of the output shaft or of the rotor shaft when the output shaft is tilted relative to the rotor shaft.

Abstract: A transmission includes a first transmission stage, a feedthrough extending through the first transmission stage, and a first deflector designed to deflect a lubricant away from the feedthrough.

Abstract: A transmission cooling device includes a transmission housing part for housing rotating transmission elements and a fan, which is connected to the transmission housing part, for providing a cooling air flow against an outer side of the transmission housing part. The fan has a conveying element, which communicates with a hollow fan ring, for generating an operating flow within the fan ring. The fan ring communicates via at least one discharge opening with a volume provided radially within the fan ring in such a way that the operating flow generates the cooling air flow by a suction jet effect. Indirectly generating the cooling air flow with the aid of the operating flow generated by the conveying element in the hollow fan ring results in good cooling with a large flow cross section of the cooling air flow with small installation space requirement, thereby enabling space-saving cooling of a transmission.

Abstract: A toothed transmission element includes a partial region formed with a first material, teeth defining an edge region which is formed additively with a second material having a hardness which is greater than a hardness of the first material, and a third material located between the first material and the second material, wherein a hardness decreases stepwise along a section leading from the edge region to the partial region.

Abstract: A stator of a directly driven wind turbine generator includes a stator support, and stator segments arranged around a circumference and positioned on flanges of the stator support. Each stator segment includes a segment support having a cavity. Securing devices secure the stator segments via the segment supports to the flanges of the stator support. The securing devices have each an intermediate piece to complement the cavity of a corresponding one of the segment supports, and an alignment pin to secure the intermediate piece in position and to adjust an air gap of the wind turbine generator.

Abstract: A planetary gearbox includes a first planetary stage with a component, a sun gear, and a planet gear meshing with the sun gear via a toothing system, a second planetary stage, and a lubricant transfer device arranged between the first planetary stage and the second planetary stage. The lubricant transfer device includes a discharge component arranged in a co-rotating manner on a component of the second planetary stage, and a receiving component designed to receive lubricant and arranged in a co-rotating manner on the component of the first planetary stage. A lubricant conduit communicates with the lubricant transfer device and is configured to extend over an entire axial extent of a tooth engagement region of the sun gear of the first planetary stage radially within the toothing system of the sun gear with the planet gear of the first planetary stage.

Abstract: A supporting device includes first and second supporting flanges coupled with first and second transmissions, respectively, and a support via which a supporting force is transmittable from the first supporting flange to the second supporting flange. The support includes a lever element which is coupled in an articulated manner with an attachment element on the first supporting flange and thus articulated with the first supporting flange, and a supporting element which is coupled in an articulated manner with the lever element and connected to the second supporting flange and which includes two spaced-apart supporting parts. The lever element is arranged partly between two spaced-apart attachment parts of the attachment element and partly between the supporting parts of the supporting element and is coupled in an articulated manner with the attachment element via the attachment parts and in an articulated manner with the supporting element via the supporting parts.

Abstract: A rotationally elastic coupling has a first coupling part with elastomers. The elastomers are arranged in the first coupling part in such a way that the elastomers serve to transfer a force onto a second coupling part when the first coupling part and the second coupling part are connected to one another. In order to improve the identification of wear, the rotationally elastic coupling has a switching element that is arranged at least in part in a first elastomer of the elastomers. A method is provided for producing a first elastomer for a rotationally elastic coupling of this kind. A method is provided for identifying a wear state for a rotationally elastic coupling of this kind.

Abstract: A planetary carrier arrangement Includes a planetary carrier, and a lubricant dispensing unit designed to dispense lubricant into the planetary carrier. The lubricant dispensing unit includes an axially elastically movable thrust ring designed to compensate an axial offset of the planetary carrier. The thrust ring has a side in facing relationship to the planetary carrier, with the side designed to include a lubricant pocket thereon.

Abstract: A planetary transmission includes a transfer device for transferring a supply medium. First and second transmission parts rotate relative to one another, with the transfer device having an annular groove on a surface of the first transmission part or of the second transmission part. The transfer device has bores distributed over a periphery. The first transmission part includes a separate bush which points towards the second transmission part and has a sealing groove with a sealing ring axially on both sides of the annular groove. The bush is arranged rotationally fixed on a rest of the first transmission part and designed to float in an axial direction with sufficient play in order to tilt out of a coaxial relative position with respect to the first transmission part and/or to the second transmission part to the extent of a relative movability of the respective sealing ring within the associated sealing groove.

Abstract: A dynamoelectric machine includes a shaft, a rotor arranged fixedly on the shaft for conjoint rotation, and a slip ring system enabling a rotor winding system to be contacted electrically and including a slip ring body having slip rings arranged spaced-apart axially behind one another and assigned to an electrical phase. The slip ring body is connected fixedly to the shaft for conjoint rotation and has between an inner side thereof and the shaft a section which forms an axially open cavity on both skies. In a region of the slip ring system, the shaft is hollow with a hollow shaft portion assigned to the slip ring system for routing feed lines to the rotor winding system. Recesses are provided on the cavity axially on an inside and axially on an outside for introducing a cooling medium flow axially into the cavity and discharge thereof into an outlet region.

Abstract: A series of planetary gearboxes includes a plurality of subseries of planetary gearboxes. Each of the plurality of subseries includes a planetary gear carrier of a planetary stage, at least two rolling bearings, and a planetary gear mounted on the at least two rolling bearings. The at least two rolling bearings in a first one of the first plurality of subseries have a first bearing width and in a second one of the first plurality of subseries having a second bearing width.

Abstract: A transmission includes a first transmission stage, a feedthrough extending through the first transmission stage, and a first deflector designed to deflect a lubricant away from the feedthrough.