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Axial magnetic circuit multistage monopole tooth-width-unequal deceleration type motor protector

A motor protector and axial magnetic circuit technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of increasing the maintenance cost of the motor, reducing the performance and life of the motor, and achieving better protection effect and reduced maintenance. cost, the effect of improving the service life

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 unequal tooth width deceleration motor protector to solve the problem that the motor performance and service life will be reduced due to the absence of motor protectors, and the maintenance cost of the motor will be increased. The problem

Method used

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  • Axial magnetic circuit multistage monopole tooth-width-unequal deceleration type motor protector
  • Axial magnetic circuit multistage monopole tooth-width-unequal deceleration type motor protector
  • Axial magnetic circuit multistage monopole tooth-width-unequal deceleration type motor protector

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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 unequal tooth width reduction type motor protector, the axial magnetic circuit multi-stage unipolar unequal tooth width reduction type motor protector includes multiple axial magnetic circuit unipolar Unequal tooth width reduction motor protector 7, each axial magnetic circuit unipolar unequal tooth width reduction type motor protector 7 includes a non-magnetic stainless steel sleeve 1, a permanent magnet 3, a magnetic stainless steel sleeve 4 and two Round magnetic stainless steel baffle 2;

[0018] The permanent magnet 3 is in the shape of a disk, and the permanent magnet 3 in the shape of the 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 the disk is arranged along the axial direction. Shaped magnetically conductive stainless steel baffle 2 is fixed on both e...

specific Embodiment approach 2

[0022] Specific implementation mode two: as figure 1 and figure 2 As shown, the axial magnetic circuit multi-stage unipolar unequal tooth width reduction type motor protector described in Embodiment 1, each of the axial magnetic circuit unipolar unequal tooth width reduction type motor protectors 7 The gap between the circumferential surfaces of the tooth tops of several teeth 4-1 with unequal tooth widths of the magnetically conductive stainless steel sleeve 4 and the inner circumferential surfaces of the shaft holes of the two circular magnetically conductive stainless steel baffles 2 and the output shaft 5 of the motor 8 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.

specific Embodiment approach 3

[0023] Specific implementation mode three: as figure 1 As shown, the axial magnetic circuit multi-stage unipolar unequal tooth width reduction type motor protector described in the specific embodiment 1 or 2, the multiple axial magnetic circuit unipolar unequal tooth width reduction type motor protectors The tooth heights of several unequal tooth width teeth 4-1 of the magnetic conduction stainless steel cover 4 of 7 are all equal. The purpose is to facilitate processing.

[0024] Working principle: as Figure 1~Figure 3 As shown, the axial magnetic circuit multi-stage unipolar unequal tooth width reduction type motor protector of the present invention is coaxially installed with the motor 8 and the reducer 6 and arranged between the motor 8 and the reducer 6 . Due to the effect of the disc-shaped permanent magnet 3, impurities such as iron filings are adsorbed on the surfaces of the circular magnetically conductive stainless steel baffle plate 2 and the magnetically conduct...

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Abstract

The invention discloses an axial magnetic circuit multistage monopole tooth-width-unequal 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-width-unequal deceleration type motor protectors, a disc-shaped permanent magnet is fixedly mounted in a nonmagnetic stainless steel sleeve; two circular magnetic stainless steel baffles are fixed to the two ends in the nonmagnetic stainless steel sleeve; a magnetic stainless steel sleeve is fixedly arranged in an installation hole of the disc-shaped permanent magnet; the magnetic stainless steel sleeve and axle holes of the two circular magnetic stainless steel baffles are coaxially arranged; the inner peripheral surface of the magnetic stainless steel sleeve is provided with multiple teeth with unequal tooth widths in the axial direction by machining. An output shaft of the motor penetrates through the multiple axial magnetic circuit monopole tooth-width-unequal deceleration type motor protectors, and gaps are formed both between the tooth top peripheral surfaces of multiple teeth with the unequal tooth widths of each magnetic stainless steel sleeve and the output shaft of the motor and between the inner peripheral surfaces of the axle holes of every two circular magnetic stainless steel baffles and the output shaft of the motor. The axial magnetic circuit multistage monopole tooth-width-unequal 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 unequal tooth width deceleration type m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10H02K21/02
CPCH02K5/10H02K7/10
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