| 摘要 |
The invention concerns an overspeed governor and an elevator comprising the same. The overspeed governor (1) comprises a governor sheave (2), a permanent magnet rotor (3) coupled to the governor sheave (2), a stator (4) arranged to interact with the permanent magnet rotor (3), a safety gear (5) for braking movement of an elevator car (6) and a safety rope (7) fixed to the safety gear (5) and arranged to run via the governor sheave (2). Said stator (4) includes a winding (8) adapted to exert, when energized, to the permanent magnet rotor (3) a braking force that brakes movement of the permanent magnet rotor (3) and, consequently, movement of the governor sheave (2) and the safety rope (7), thereby activating the safety gear (5). |
