Magnetic shielding type permanent-magnet speed controller

A permanent magnet speed governor and magnetic shielding technology, applied in the direction of permanent magnet clutches/brakes, etc., can solve the problems of large and inconvenient equipment, poor adjustment effect, small adjustment force, etc., and achieve good equipment reliability and weight. Light, low adjustment effect

Active Publication Date: 2016-05-04
TIANJIN JIXUAN ENERY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the present invention aims at adjusting the magnetic induction line of the existing permanent magnet governor by adjusting the axial distance to adjust the load speed, which causes the equipment to be bulky and inconvenient to operate, and the adjustment effect is not good when adjusting the distance in the radial direction. The problem is to provide a magnetically shielded permanent magnet governor, which has a small axial size and is convenient for on-site modification; only the magnetic shielding mechanism needs to be adjusted, which is light in weight, small in adjustment force, simple in adjustment mechanism and high in reliability; The heat is small, and the speed can be adjusted freely from zero to maximum

Method used

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  • Magnetic shielding type permanent-magnet speed controller

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Embodiment 1

[0050] Such as image 3 , 4 As shown, the magnetically shielded permanent magnet governor of this embodiment is a disc permanent magnet governor structure, which specifically includes a conductor rotor, a permanent magnet rotor arranged between two copper rings of the conductor rotor, a conductor rotor and a permanent magnet rotor. The disk-type magnetic shielding mechanism between the rotors, there is a gap between the conductor rotor and the permanent magnet rotor, the disk-type magnetic shielding mechanism is coaxially arranged with the permanent magnet rotor, and can be opposite to the permanent magnet rotor turn.

[0051] Wherein the permanent magnet rotor may be located entirely in the space of the disc-type magnetic shielding mechanism, or may be partially located in the space of the disc-type magnetic shielding mechanism, so as to achieve the purpose of shielding the magnetic induction line and adjusting the speed of the load.

[0052] Wherein, the conductor rotor of...

Embodiment 2

[0062] As another preferred structure of the present invention, the magnetic flux shielding structure is a cylindrical magnetic flux shielding structure 8, Figure 10 It is a schematic diagram of the overall structure of this embodiment, specifically including a conductor rotor, a permanent magnet rotor arranged on the inner circumference of the conductor rotor, a cylindrical magnetic shielding mechanism arranged between the conductor rotor and the permanent magnet rotor, the conductor rotor and the permanent magnet rotor There is a gap between the rotors, the cylindrical magnetic shielding mechanism and the permanent magnet rotor can be arranged coaxially or not, and the cylindrical magnetic shielding mechanism can rotate relative to the permanent magnet rotor. In order to facilitate the realization of this embodiment It is preferably arranged coaxially, and the permanent magnet rotor is located in the space of the cylindrical magnetic shielding mechanism.

[0063] The cylind...

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Abstract

The invention belongs to the technical field of permanent-magnet speed control, and in particular relates to a magnetic shielding type permanent-magnet speed controller. The magnetic shielding type permanent-magnet speed controller comprises a conductor rotor and a permanent-magnet rotor; an air gap exists between the conductor rotor and the permanent-magnet rotor; the magnetic shielding type permanent-magnet speed controller is characterized by further comprising a magnetic shielding mechanism; and the magnetic shielding mechanism is arranged between the conductor rotor and the permanent-magnet rotor. The magnetic shielding type permanent-magnet speed controller disclosed by the invention has the benefits that: the axial dimension of equipment is small; field modification is convenient; only the magnetic shielding mechanism is necessary to adjust; the weight is light; the adjusting force is low; the adjusting mechanism is simple and high in reliability; the heat emitting amount is low; and free adjustment from zero to the largest value can be realized.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet speed regulation, and in particular relates to a magnetic shield type permanent magnet speed regulator. Background technique [0002] In large-scale mining, petrochemical, electric power and metallurgy industries, due to the need for energy saving and environmental protection, permanent magnet speed control devices are more and more widely used. The permanent magnet speed control device can adapt to various harsh environments, including places with large grid voltage fluctuations, serious harmonics, flammable, explosive, humid, dusty, etc., and can adjust the speed of the load online to meet the actual operation needs of the system and realize speed regulation Energy saving, speed regulation range 0-98%, energy saving rate 10%-65%. When working, the motor drives the conductor rotor of the permanent magnet governor to rotate, and the copper conductor on the conductor rotor cuts the magnet...

Claims

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Application Information

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IPC IPC(8): H02K49/10
CPCH02K49/10
Inventor柳志明张领强梁清波
OwnerTIANJIN JIXUAN ENERY SAVING TECH CO LTD