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Axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector

A technology of motor protector and axial magnetic circuit, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of increasing motor maintenance costs, reducing motor performance and life, achieving better protection effects and reducing maintenance The effect of cost, easy processing and manufacturing

Inactive Publication Date: 2015-06-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction motor protector to solve the problem that the motor performance and service life will be reduced and the maintenance cost of the motor will be increased due to the absence of a motor protector The problem

Method used

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  • Axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector
  • Axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector
  • Axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector

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Experimental program
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specific Embodiment approach 1

[0017] Specific implementation mode one: as figure 1 and figure 2 As shown, the axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction motor protector, the axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction motor protector includes multiple axial magnetic circuit unipolar The non-cogging reduction motor protector 7, each axial magnetic circuit unipolar non-cogging reduction motor protector 7 includes a non-magnetic stainless steel sleeve 1, a permanent magnet 3, a magnetic stainless steel sleeve 4, the first round Magnetic stainless steel baffle 2 and the second circular magnetic stainless steel baffle 9;

[0018] The permanent magnet 3 is in the shape of a disk, and the permanent magnet 3 in the shape of a disk is fixedly installed in the non-magnetic stainless steel sleeve 1, and the magnetic circuit of the permanent magnet 3 in the shape of a disk is arranged along the axial direction. The first circular magnetic co...

specific Embodiment approach 2

[0020] Specific implementation mode two: as figure 1 As shown, the axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction type motor protector described in the first embodiment, the guide of each axial magnetic circuit unipolar non-cogging reduction type motor protector 7 The inner peripheral surfaces of the magnetic stainless steel sleeve 4 are all stepped. The purpose is to play a certain buffering role and decelerate impurities such as iron filings layer by layer, which is more conducive to adsorption.

[0021] The inner peripheral surface of the magnetically conductive stainless steel sleeve 4 is not limited to a stepped shape, and any inner peripheral surface of the magnetically conductive stainless steel sleeve 4 that can satisfy the structure without cogging can be adopted.

specific Embodiment approach 3

[0022] Specific implementation mode three: as figure 1 As shown, the axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction type motor protector described in the second specific embodiment, the guide of each axial magnetic circuit unipolar non-cogging reduction type motor protector 7 The magnetic stainless steel sleeve 4 is closest to the inner peripheral surface of the output shaft 5 of the motor 8 and the gap between the inner peripheral surface of the shaft hole of the first circular magnetically conductive stainless steel baffle plate 2 and the output shaft 5 of the motor 8 is equal and both are 1~ 2mm. This not only ensures the normal operation of the motor 8, but also prevents iron filings and impurities from entering the motor body to the greatest extent.

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Abstract

The invention discloses an axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector, belongs to the technical field of motor protection equipment, and aims at solving the existing problems that the using performance and service life of a motor are reduced, and the maintenance cost of the motor is increased owing to the lack of the motor protector. In each of axial magnetic circuit monopole tooth-space-omitted deceleration type motor protectors, a disc-shaped permanent magnet is fixedly mounted in a nonmagnetic stainless steel sleeve; a first circular magnetic stainless steel baffle and a second circular magnetic stainless steel baffle are fixed into the nonmagnetic stainless steel sleeve; the diameter of an axle hole of the first circular magnetic stainless steel baffle is smaller than that of an axle hole of the second circular magnetic stainless steel baffle; a magnetic stainless steel sleeve is fixedly arranged in an installation hole of the disc-shaped permanent magnet; the inner peripheral surface of the magnetic stainless steel sleeve is of a special-shaped tooth-space-omitted structure. When the axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector is used, an output shaft of the motor penetrates through the multiple axial magnetic circuit monopole tooth-space-omitted deceleration type motor protectors 7, and gaps are formed both between the inner peripheral surface with the smaller diameter of each magnetic stainless steel sleeve and the output shaft of the motor and between the inner peripheral surface of the axle hole of each first circular magnetic stainless steel baffle and the output shaft of the motor. The axial magnetic circuit multistage monopole special-shaped tooth-space-omitted deceleration type motor protector is applied to large space occasions for protecting the motor.

Description

technical field [0001] The invention relates to a motor protector, which belongs to the technical field of motor protection equipment. Background technique [0002] The iron filings and other impurities produced by the friction of the reduction mechanism (such as the reducer) have an important impact on the long-term effective operation of the permanent magnet synchronous motor (hereinafter referred to as the motor). It will also have adverse effects, which will not only increase the maintenance cost of the motor, but also seriously affect the service life of the motor. Therefore, how to reduce impurities such as iron filings from entering the motor body, effectively improve the performance and life of the motor, and reduce the maintenance cost of the motor is an urgent problem to be solved at present. Contents of the invention [0003] The purpose of the present invention is to provide an axial magnetic circuit multi-stage unipolar special-shaped non-cogging reduction mo...

Claims

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Application Information

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IPC IPC(8): H02K5/10H02K21/02
CPCH02K5/10H02K21/02
Inventor 邹继斌徐永向赵猛胡建辉刘承军江善林赵博王骞王宝超尚静李勇
Owner HARBIN INST OF TECH