| abstract |
The invention discloses a rotor system and a gas turbine. The rotor system comprises: a rotating shaft; a thrust disc is arranged on the rotating shaft; ; Thrust air bearing, sleeved outside the thrust disk; Magnetic bearing assembly, including a first magnet disk, a second magnet disk and a rotating permanent magnet; The rotating permanent magnet is fixedly installed on the nose cone; The first magnet disk and the second magnet disk It is fixedly installed on the stator and is respectively arranged on both sides of the nose cone, the first magnet disc is arranged at intervals on the side of the nose cone away from the thrust air bearing, and the second magnet disc is arranged at intervals on the side of the nose cone close to the thrust air bearing; One of the magnet disk and the second magnet disk is provided with a fixed permanent magnet, and the other is provided with an electromagnet. The rotor system of the present invention can control the axial position of the rotating shaft when the rotating shaft starts and stop by setting the magnetic bearing assembly, thereby reducing the occurrence of friction and collision between the thrust plate and the thrust air bearing. |