Permanent magnet speed governor

Abstract

The invention relates to a permanent magnet speed governor. A first shaft is provided with a single-layer edge cylinder conductor turnplate, and a second shaft is connected with a single-layer edge cylinder permanent magnet turnplate, wherein the permanent magnet turnplate is in the conductor turnplate; an annular conductor plate and a conductor cylinder are arranged in the conductor turnplate; the edge cylinder of the permanent magnet turnplate is provided with an outer permanent magnet ring and an inner permanent magnet ring; a gap is preserved between the conductor plate and the inner permanent magnet ring, and a gap is also preserved between the outer permanent magnet ring and the conductor cylinder; and a regulating mechanism mainly comprising a shaft sleeve, an addition shaft, an inner circle sleeve and an outer circle sleeve is arranged between the second shaft and the permanent magnet turnplate. The cylindrical turnplate permanent magnet speed governor replaces single-surface coupling by cylindrical and planar dual coupling and has a big coupling surface, and thereby, the non-contact transfer of the power is realized, and the transfer torque force is big; moreover, the permanent magnet turnplate can move along the axial direction, the transferred torque between the conductor plate and the conductor cylinder can be changed as long as the distance between the permanent magnet turnplate and the conductor plate and an effective part meshed with the conductor cylinder are changed; the permanent magnet speed governor can realize repeatable, regulable and controllable output torque and rotating speed to achieve the goals of speed regulation and energy saving.

Description

technical field [0001] The invention relates to a driving speed regulating device, in particular to a permanent magnet speed regulating device adopting the principle of permanent magnet eddy current induction. Background technique [0002] Existing motor systems, especially centrifugal equipment systems, mainly use the following methods to regulate flow and pressure: damper baffles, valves, hydraulic couplings, frequency converters, and internal feedback chopper speed regulation. Dampers and valves are traditional methods, which can effectively adjust the flow or pressure, but the disadvantages are also obvious: they are not energy-saving, and they are easy to cause shocks in the system. Although the hydraulic coupling can adjust the speed and save energy to a certain extent, its efficiency is low and it is not stable enough. Inverter and internal feedback chopper speed regulation use the method of directly changing the motor speed to adjust the system and load, which has h...

AI Technical Summary

Problems solved by technology

Although the hydraulic coupling can adjust the speed and save energy to a certain extent, its efficiency is low and it is not stable enough

Inverter and internal feedback chopper speed regulation use the method of directly changing the motor speed to adjust the system and load, which has high efficiency and good energy-saving effect, but because there are many electrical components and many fault points, it has high environmental requirements and life cycle Short and has electromagnetic interference

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