An Inner Rotor Cooling Type High Power Eddy Current Governor

Abstract

The invention discloses an inner rotor cooling type high-power vortex governor, which comprises an inner rotor, an outer rotor and a coolant supply and discharge system. The inner rotor includes the inner rotor shaft, the inner rotor rotating disk and two symmetrical conductive metal disks. The coolant supply and discharge system includes the coolant supply and discharge pipelines, the coolant collector and the inner rotor shaft and the inner rotor rotating disk. External heat exchange mechanism. The outer rotor includes an outer rotor shaft, two symmetrical outer rotor moving discs with magnetism and a rotary linear adjustment mechanism. There is a variable air gap between each outer rotor moving disc and the conductive metal disc on the same side. After adopting the above structure, the inner rotor and the outer rotor are connected softly (magnetically), the inner rotor has a simple structure, low processing difficulty, and is convenient for assembly and maintenance. The above-mentioned coolant supply and discharge system can reduce the temperature of the rotating disk of the inner rotor to the maximum extent, and at the same time realize air convection cooling of the permanent disk of the outer rotor, and realize high-power eddy current speed regulation.

Description

technical field [0001] The invention relates to a speed governor, in particular to an inner rotor cooling type high-power eddy current speed governor. Background technique [0002] The existing permanent magnet eddy current speed regulating device is mainly composed of two parts: a permanent magnet rotor and a copper (or other conductor) rotor. Generally, the shaft of the motor and the shaft of the working machine are respectively connected to one of the rotors. There is an air gap (called an air gap) between the copper rotor and the permanent magnet rotor, and there is no mechanical connection for torque transmission. In this way, a soft (magnetic) connection is formed between the motor and the working machine, and the shaft torque and speed of the working machine can be changed by adjusting the air gap, so it can adapt to various harsh environments, and because there is no direct mechanical connection, the mechanical loss. [0003] In the structure of the existing disc v...

AI Technical Summary

Problems solved by technology

[0008] 1. Although cooling on the outer rotor disk can play a role in heat dissipation, since the heat dissipation mechanism is located on the periphery of the entire speed control mechanism, the speed control mechanism needs to be sealed as a whole, and the sealing requirements are high. The site often brings cooling medium due to sealing problems. Penetration into the lubrication system causing equipment failure

[0009] 2. Although the heat generation of the permanent disk itself is small, the heat conduction and radiation of the conductor disk to the permanent disk through the air also needs to be dissipated;

However, after the assembly of the outer rotor is completed, the adjustment of the inner rotor becomes very difficult due to the complex structure of the inner rotor adjustment mechanism and its location in the closed space enclosed by the outer rotor.

In addition, the complex inner rotor structure also greatly increases the difficulty of processing

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