摘要 |
PURPOSE:To obtain a torque to tilt the rotary shaft of a rotor, and at the same time, reduced the efficiency deterioration of the electromagnetic force by forming respective grooves where mutual discrepancies exist in the oppositely-positioned pole faces of the rotor and a stator, and forming these pole faces as a part of the specific conical surface or the like. CONSTITUTION:A plurality of rings 2, 3 which are respectively composed of a magnetic substance are fixed to a rotor 1. A plurality of cores 5, 6 which are respectively composed of a magnetic substance are fixed to a stator 4. A plurality of windings 7-10 are furthermore wound around the respective cores 5, 6. In this case, the pole faces of the respective cores 5, 6 are formed on one end of a conical surface or a spherical surface sharing the rotary shaft of the rotor 1 and the central axis of the surface. On the other hand, respective grooves 20, 30, 50, 60 where mutual discrepancies exist are formed on the pole faces of the respective rings 2, 3 and the respective cores 5, 6. The flux (A) passing through a gap between the ring 2 and the core 5 is deflected at the brim parts of the respective grooves 20, 50. This constitution allows the absorbing force B perpendicular to and the force C parallel to the pole faces to be generated in the ring 2. |