Horizontal type oil-cooled permanent magnetic speed regulator

Abstract

The invention discloses a horizontal type oil-cooled permanent magnetic speed regulator. The horizontal type oil-cooled permanent magnetic speed regulator comprises an external rotor connected with a first shaft, an internal rotor connected with a second shaft and a speed regulating mechanism connected with the internal rotor, and the first shaft and the second shaft are horizontally arranged; a third rotor disc is fixedly connected with the speed regulating mechanism; and the speed regulating mechanism comprises a speed regulating portion bearing pedestal and a worm gear assembly, the horizontal type oil-cooled permanent magnetic speed regulator further comprises a casing, and the casing is provided with a cooling coil inlet and an oil outlet. According to the invention, the worm gear assembly is adopted, the worm gear assembly can generate larger axial thrust, the precision is higher, the delay is smaller, accurate control can be realized, the worm gear assembly adjusts axial displacement of the rotors by use of a thread sleeve with a threaded structure, and the requirement for accurately adjusting an air gap is realized.

Description

technical field [0001] The invention relates to a permanent magnet governor, in particular to a horizontal oil-cooled permanent magnet governor. Background technique [0002] The Chinese Utility Model Patent Application No. 98802726.7 filed by Magnaflex Corporation of the United States discloses an adjustable magnetic coupling, which includes a first rotating shaft, a second rotating shaft, and two shafts mounted on the first rotating shaft. a conductor rotor, two permanent magnet rotors mounted on the second rotating shaft and each including a corresponding set of permanent magnets, and a push-pull mechanism, the two permanent magnet rotors are located between the two conductor rotors, and each permanent magnet rotor is connected to the two conductor rotors. There is an air gap between the opposite conductor rotors, and the two air gaps formed by the conductor rotor and the permanent magnet rotor can be increased or decreased at the same time under the action of the push-pu...

AI Technical Summary

Problems solved by technology

[0003] 1. The eddy current generated by magnetic induction on the conductor rotor generates a huge amount of heat. When the rated power of the equipment is increased, the effect of relying on the existing fin-like heat sink to force air cooling and heat dissipation is limited, and the magnetic coupler is easily burned due to high temperature. ;

[0004] 2. The noise problem generated by the finned heat sink during the operation of the magnetic coupling is very serious;

[0005] 3. The air gap adjustment unit located in the permanent magnet rotor has complex structure, high manufacturing cost and difficult assembly;

[0006] 4. For the cam mechanism in the speed-regulating inner and outer sleeves used to form the push-pull mechanism, since the cam roller adopts a sliding contact slider in contact with the groove surface, once the lubrication of the grease is lost, it is very easy to make the slider in the groove. The slot is stuck, resulting in the inability to adjust the speed; at the same time, it cannot accurately control the axial displacement of the speed regulating mechanism, which cannot reach the required air gap size, and the speed regulation accuracy is difficult to be guaranteed

[0007] The existence of the above-mentioned main defects affects the operation stability of the entire permanent magnet governor, which not only limits the application of the permanent magnet governor in some high-power requirements occasions, but also limits the widespread application of the permanent magnet governor

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