| 简介 |
A fixed magnetic gap permanent magnet speed governor, comprising a cylindrical conductor rotor (1) and a permanent magnet rotor disposed therein, the permanent magnet rotor comprising at least one permanent magnet (2), two length sides of the permanent magnet (2) being an N pole and an S pole respectively, two magnetic pole end surfaces and two length sides of the permanent magnet (2) being provided with fixed magnetizers (4) and movable magnetizers (5) respectively, the fixed magnetizers (4) and the movable magnetizers (5) forming a closed magnetic loop. Adopting the fixed magnet gap structure improves an engagement area of the speed governor and reduces assembling difficulty, saves a rare-earth material, and increases a torque transmission capability. The adoption of a magnetic circuit adjustment structure reduces the power consumption of an adjustment execution mechanism, maximally reduces the size of the adjustment execution mechanism, and reduces the overall size of the speed governor, thus reducing material consumption, saving installation space, and facilitating on-site installation. |
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