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 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: In a process for additive manufacturing of a machine component, a hardening agent is added to a base material of a material layer in locally adjustable fashion, and the material layer is irradiated with a laser to effect local melting of the material layer such that the hardening agent is at least embedded in the base material as the material layer is irradiated with the laser.

Abstract: In a method for predicting damage to a roller bearing, a plurality of physical variables of at least one component of the roller bearing is acquired. From the physical variables and from type information of the roller bearing at least a first influencing variable and a second influencing variable are established and based on the at least first and second influencing variables a damage contribution to damage to the roller bearing caused by a White Etching Crack (WEC) mechanism is established and the damage contribution is added to form a damage sum. A remaining service life of the at least one component of the roller bearing due to the damage caused by the WEC mechanism from the damage sum and a first damage accumulation model is then established.

Abstract: A transmission housing includes a lower housing part, and an upper housing part. At least one of the lower and upper housing parts is configured to include on an outside thereof an externally accessible cable accommodating groove.

Abstract: In a method for predicting damage to a roller bearing, a plurality of physical variables of at least one component of the roller bearing is acquired. From the physical variables and from type information of the roller bearing at least a first influencing variable and a second influencing variable are established and based on the at least first and second influencing variables a damage contribution to damage to the roller bearing caused by a White Etching Crack (WEC) mechanism is established and the damage contribution is added to form a damage sum. A remaining service life of the at least one component of the roller bearing due to the damage caused by the WEC mechanism from the damage sum and a first damage accumulation model is then established.

Abstract: In a 3D printing process for building up components layer by layer, an individual set of CAD data is created that takes into account a dimension of a working chamber of a 3D printing machine and is based on structural design data of a plurality of components to be produced. The set of CAD data defines form and position of the components in the three-dimensional space and form and position of supporting structures connecting at least some of the components to one another. The position of at least some components is chosen as to be arranged one above the other and/or nested in one another in a direction of production. The components and the supporting structures are built up layer by layer from a material by using a 3D printing machine and the set of CAD data in a single operation and the components are separated from the supporting structures.

Abstract: An arrangement includes a shaft arranged within a housing and sized to project through a housing opening, and a shaft sealing ring arranged between the housing and the shaft in a region of the housing opening. A wirelessly interrogatable SAW system has an interrogation unit, at least one stationary first antenna electrically connected to the interrogation unit, at least one rotating second antenna attached in fixed rotative engagement to the shaft, and at least one wirelessly interrogatable SAW sensor attached in fixed rotative engagement to the shaft and electrically connected to the at least one second antenna. The first and second antennas are arranged to overlap each other in a radial direction. Closing the housing is an annular housing cover to which the first antenna is attached at a distance from the second antenna in an axial direction.

Abstract: A planetary gearbox includes a sun wheel rotatably supported in a gearbox housing and having an external toothing, a rotatable hollow wheel, and a planetary carrier rotatably mounted in the gearbox housing. Planetary wheel bearings mount planetary wheels on the planetary carrier for rotation about planetary wheel axes of rotation. The planetary wheel bearings have external toothings which engage with the internal toothing of the hollow wheel and the external toothing of the sun wheel. Each planetary wheel bearing includes two annular bearing elements which are traversed by and held in fixed rotative engagement on a planetary wheel pin. The bearing elements have each an outer peripheral surface shaped to define a cone-shaped sliding surface such that tapered ends of the bearing elements point to one another and a running surface of an inner peripheral surface of the planetary wheel corresponds to the sliding surface of the planetary wheel bearing.

Abstract: A planetary gearbox includes a sun wheel rotatably supported in a gearbox housing and having an external toothing, a rotatable hollow wheel, and a planetary carrier rotatably mounted in the gearbox housing. Planetary wheel bearings mount planetary wheels on the planetary carrier for rotation about planetary wheel axes of rotation. The planetary wheel bearings have external toothings which engage with the internal toothing of the hollow wheel and the external toothing of the sun wheel. Each planetary wheel bearing includes two annular bearing elements which are traversed by and held in fixed rotative engagement on a planetary wheel pin. The bearing elements have each an outer peripheral surface shaped to define a cone-shaped sliding surface such that tapered ends of the bearing elements point to one another and a running surface of an inner peripheral surface of the planetary wheel corresponds to the sliding surface of the planetary wheel bearing.

Abstract: An arrangement includes a shaft arranged within a housing and sized to project through a housing opening, and a shaft sealing ring arranged between the housing and the shaft in a region of the housing opening. A wirelessly interrogatable SAW system has an interrogation unit, at least one stationary first antenna electrically connected to the interrogation unit, at least one rotating second antenna attached in fixed rotative engagement to the shaft, and at least one wirelessly interrogatable SAW sensor attached in fixed rotative engagement to the shaft and electrically connected to the at least one second antenna. The first and second antennas are arranged to overlap each other in a radial direction. Closing the housing is an annular housing cover to which the first antenna is attached at a distance from the second antenna in an axial direction.

Abstract: A drive system has a transmission unit with planetary gear stage and a first shaft associated with a planetary carrier and having a coupling flange connectable to a machine or rotor shaft. The transmission unit and a motor/generator unit includes a rotor connected with a rotation-lock to a hollow rotor shaft which is connected to a second shaft of the transmission unit and enclosed by a gearbox housing. A coupling is arranged radially between the second shaft and the hollow rotor shaft. A gearbox housing support with a hollow cylindrical extension is arranged between the transmission unit and the motor/generator unit. The cylindrical extension concentrically encloses an end section of the second shaft and forms a bearing seat for a bearing arrangement disposed radially between the second shaft and the cylindrical extension. The hollow cylindrical extension is concentrically enclosed by the rotor and the hollow rotor shaft.

Abstract: The invention relates to a gearbox having a sensing device (109) for sensing a torque which acts on a drive shaft (101), an output shaft (102) or a shaft which can be driven by the drive shaft (101). The sensing device (109) is electrically connected to an integrated energy-generating device. A rotor (192), which is arranged inside the gearbox housing (103) and connected in a rotationally fixed fashion to a shaft which can be driven by the drive shaft (101), is assigned to the energy-generating device. A bearing (194), which is secured by a housing lid (193), is assigned to this shaft. The housing lid (193) surrounds the rotor (192) in this context. The energy-generating device is assigned a stator (191) which is mounted on the housing lid (193) within the gearbox housing (103).

Abstract: A drive system having an integrated transmission and motor/generator unit for a wind turbine includes a transmission output shaft designed as a hollow shaft, which receives a sun shaft of an output-side planetary gear stage and is connected thereto. The transmission output shaft comprises a transmission-side end section of an insert shaft which is concentrically arranged within a rotor hollow shaft. The transmission output shaft additionally has a bearing for receiving radial and axial forces. The motor/generator unit has two dedicated bearings. One bearing thereof is a transmission-side bearing. In addition, a rear-side generator bearing is provided.

Abstract: The invention relates to a machine component of a drive train and to a method for configuring and/or putting into operation and/or operating such a drive train (2) of a machine (1), which drive train comprises machine components that can be controlled by means of a control unit (9) as well as non-controllable machine components (5-8), wherein the method comprises the steps of: equipping at least a portion of the non-controllable machine components (5-8) with component-specific data storage devices (12-15), on which in each case design-related technical data of the non-controllable machine components (5-8) are stored, which data are relevant for the control of one or several controllable machine components (3-4); transmitting the data stored on the data storage devices (12-15) to the control unit (9); and controlling one or more controllable machine components (3, 4) by using the control unit (9) and on the basis of the data transmitted.

Abstract: The invention relates to a gearbox having a sensing device (109) for sensing a torque which acts on a drive shaft (101), an output shaft (102) or a shaft which can be driven by the drive shaft (101). The sensing device (109) is electrically connected to an integrated energy-generating device. A rotor (192), which is arranged inside the gearbox housing (103) and connected in a rotationally fixed fashion to a shaft which can be driven by the drive shaft (101), is assigned to the energy-generating device. A bearing (194), which is secured by a housing lid (193), is assigned to this shaft. The housing lid (193) surrounds the rotor (192) in this context. The energy-generating device is assigned a stator (191) which is mounted on the housing lid (193) within the gearbox housing (103).

Abstract: A drive system having an integrated transmission and motor/generator unit for a wind turbine includes a transmission output shaft designed as a hollow shaft, which receives a sun shaft of an output-side planetary gear stage and is connected thereto. The transmission output shaft comprises a transmission-side end section of an insert shaft which is concentrically arranged within a rotor hollow shaft. The transmission output shaft additionally has a bearing for receiving radial and axial forces. The motor/generator unit has two dedicated bearings. One bearing thereof is a transmission-side bearing. In addition, a rear-side generator bearing is provided.

Abstract: A drive system for a wind turbine includes a transmission unit with a planet wheel stage. A coupling flange on a first shaft of the transmission unit can be connected to a driven machine shaft or rotor shaft which is mounted above a planet carrier. The transmission unit and a motor/generator unit connected with a second shaft of the transmission unit are enclosed by a gear case. A rotor of the motor/generator unit is connected to a hollow rotor shaft which surrounds an end section of the second shaft and is connected to the end section via an interior coupling or clamping connection. A connecting-piece is arranged between the transmission unit and the motor/generator unit, and concentrically surrounds a transmission-side end section of the rotor shaft, forming a bearing seat for the rotor shaft, which also supports the second shaft of the transmission unit.

Abstract: The invention relates to a gear mechanism comprising at least one drive shaft and at least one output shaft, which enter a gear mechanism housing through a respective opening. The drive shaft and/or the output shaft comprise a magnetically or optically coded section in the region of the respective opening. The coding in said section may be changed by the effect of a torque or a force on the drive shaft or output shaft. Moreover, at least one gear wheel connected to the drive shaft and at least one gear wheel connected to the output shaft are provided that are directly or indirectly engaged with one another. In addition, the gear mechanism according to the invention comprises at least one scanning unit for detecting the magnetic or optical coding of the drive shaft or output shaft in a contact free fashion.

Abstract: A drive system has a transmission unit comprising at least one planet wheel stage, which has a hollow wheel, several planet wheels, a planet carrier and a sun wheel. Furthermore, a first shaft associated with the transmission unit is provided, which has a coupling flange that can be connected to a work machine shaft or rotor shaft and is mounted via the planet carrier. The transmission unit and a motor unit or generator unit connected to a second shaft of the transmission unit are enclosed by a gear housing which has a cardanic circumferentially symmetric or partially symmetric suspension for connection to a supporting structural element of the wind turbine.