Permanent magnet adjuster

Abstract

The invention relates to the field of driving adjustment, in particular to a permanent magnet adjuster. The permanent magnet adjuster comprises a first shaft and a second shaft, the first shaft and the second shaft are split and coaxial, and the permanent magnet adjuster is characterized in that the first shaft is sleeved with an annular permanent magnet rotary disc, the second shaft is sleeved with an annular shaft sleeve, a shaft sleeve station is sleeved with an annular conductor rotary disc, the outer diameter of the permanent magnet rotary disc is larger than the outer diameter of the conductor rotary disc, the outer edge of the permanent magnet rotary disc is fixedly connected with two coaxial cylindrical protrusions, namely the externally-carried magnetic cylinder far away from the first shaft and the internally-carried magnetic cylinder close to the first shaft, the outer surface of the internally-carried magnetic cylinder and the inner surface of the externally-carried magnetic cylinder are respectively provided with a permanent magnet, magnetic poles of the permanent magnets at the corresponding positions of the surface of the internally-carried magnetic cylinder and the surface of the externally-carried magnetic cylinder are opposite, the outer edge of the conductor rotary disc forms a cylindrical conductor cylinder in the direction of the first shaft, and the conductor cylinder extends into the position, between the internally-carried magnetic cylinder and the externally-carried magnetic cylinder, of the permanent magnet rotary disc. A speed adjusting block is connected to the position of the axis of the second shaft in the shaft sleeve.

Description

technical field [0001] The invention relates to the field of drive adjustment, in particular to a permanent magnet adjuster. 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 that can effectively adjust flow or pressure, but the disadvantages are also obvious: they are not energy-saving, easily cause shocks in the system, and cause high noise. 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...

AI Technical Summary

Problems solved by technology

Dampers and valves are traditional methods, which can effectively adjust the flow or pressure, but the disadvantages are also obvious: no energy saving, easy to cause impact in the system, and loud noise

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. The efficiency is high and the energy saving effect is good. Short, with electromagnetic interference, high maintenance costs

[0003] In this case, the permanent magnet speed governor is a new type of ideal choice in the field of motor speed regulation; but the coupling surface of the ordinary flat plate type permanent magnet speed governor is flat, the area is small, the torque is small, and the axial The force is large, the requirements on the bearing are high, and it is easy to be damaged

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