| 摘要 |
In a long motor, where the rotor (2) is divided into sections with at the least one low friction bearing (4) arranged between the sections and in each end of the long motor (1), whereby the stator is stacked continuously past the internal bearings (4), using thin sheets of metal discs in the areas surrounding the bearings (4), and thin sheets of magnetic metal discs (10) between the bearings (4), it is the object to provide a long electrical motor mainly for submersible use having a high efficiency, which motor being mechanically stable can be assembled under low time consumption at low costs, and which motor is easy to maintain and repair. This object is accomplished in that each single plate in the bearing pedestal (5) is significantly thicker than the common stator plates (10) and made of a paramagnetic metal with good heat transfer properties, that the inner diameter of each plate in the bearing pedestal (5) is smaller than the inner diameter of the common stator plates (10), that the bearing (4) is inserted in and held by a tight fit in the bearing pedestal (5), whereby the inner diameter of the bearing (4) is fitting tightly to the axis of the rotor, and that the slots for the stator windings in all metal discs (5, 10) are radially open towards the rotor.
|
