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US 2006/0131971 A1Published application
Synchronous motor with starter device
AssigneeHanning Elektro-Werke GmbH & Co. KG
InventorsWerner Hangmann, Oliver Grote, Norbert Krogmeier
Life of this patent
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Abstract
A synchronous motor includes a starter device in the drive connection between the motor and a load, and a driven rotor. In the drive train between rotor and the load there is a shaft element inside which there is a cylindrical chamber in which a coaxial shaft is rotatable mounted, and on which a threaded portion is disposed in a torque-proof but axially displaceable manner. A nut (38) meshes with the threaded portion, the nut being arranged in the chamber in a torque-proof but axially displaceable manner.
Claims7
Synchronous motor comprising:
- a drive connection between the motor and a load,
- a starter device in the drive connection between the motor and the load, and
- a driven rotor,
- the starter device including a shaft element in the drive connection between the rotor and the load, the shaft element including:
- a cylindrical chamber,
- a coaxial shaft rotatably mounted in the cylindrical chamber,
- a threaded portion disposed on the coaxial shaft in a torque-proof but axially displaceable manner, and
- a nut which meshes with said threaded portion, said nut being arranged in the chamber in a torque-proof but axially displaceable manner.
5 more elements
Synchronous motor comprising:
- a drive connection between the motor and a load,
- a driven rotor, and
- a starter device in the drive connection between the motor and the load, the starter device including a shaft element in the drive connection between the rotor and the load, the shaft element including:
- a cylindrical chamber,
- a coaxial shaft rotatable mounted in the cylindrical chamber,
- a threaded portion disposed on the coaxial shaft, and
- a nut which meshes with said threaded portion, said nut being arranged in the chamber in a torque-proof but axially displaceable manner,
- the driven rotor provided with a coaxial bore in which the shaft is rotatably mounted to form an output shaft of the motor, the coaxial bore being enlarged in one part of the rotor to form the cylindrical chamber in which the threaded portion is fixed to the output shaft in a torque-proof and axially immobile manner,
- the nut being provided inside the chamber and engaging with the threaded portion in a torque-proof but axially displaceable manner in relation to the rotor, and
- when the shaft is axially displaced by the threaded portion as the threaded portion moves into an end position, a working element disposed on the shaft ends up, as a result of one of the two directions of rotation, in a position in which a scheduled power consumption is exceeded.
7 more elements
Dependencies are inferred from the claim text.