| 摘要 |
PURPOSE:To enhance reliability decreasing vibration of a pump during its operation by providing a pair of active type radial magnetic bearings supporting a rotary unit, motor arranged between these magnetic bearings and a dynamic damper arranged in the end part of a fixed shaft. CONSTITUTION:A fixed shaft 2 and a rotor 3, covering the fixed shaft 2, are arranged in a casing 1. An active radial magnetic bearing 5 supports the rotor 3. A motor 6 is arranged between these magnetic bearings 5. A dynamic damper 10 is arranged in an end part of the fixed shaft 2 and coated with a rotor cover 8. Thus enabling the rotor to be stably supported by the magnetic bearing in a contactless condition, reliability is enhanced by enabling vibration to be decreased during operation. |
