CN104702030A - Axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector - Google Patents
Axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector Download PDFInfo
- Publication number
- CN104702030A CN104702030A CN201510151070.1A CN201510151070A CN104702030A CN 104702030 A CN104702030 A CN 104702030A CN 201510151070 A CN201510151070 A CN 201510151070A CN 104702030 A CN104702030 A CN 104702030A
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- China
- Prior art keywords
- stainless steel
- magnetic stainless
- slotless
- type motor
- magnetic circuit
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0805—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for synchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0822—Integrated protection, motor control centres
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses an axial magnetic circuit multistage multi-pole 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 multi-pole special-shaped tooth-space-omitted deceleration type motor protectors, multiple disc-shaped permanent magnets are fixed into a nonmagnetic stainless steel sleeve in parallel; circular magnetic stainless steel baffles are fixedly arranged between every two adjacent disc-shaped permanent magnets and outside the two disc-shaped permanent magnets close to the two ends in the nonmagnetic stainless steel sleeve; a magnetic stainless steel sleeve is fixedly arranged in an installation hole of each disc-shaped permanent magnet; the diameter of one end of the inner peripheral surface of each magnetic stainless steel sleeve is smaller than that of the other end. An output shaft of the motor penetrates through the multiple magnetic stainless steel sleeves and the axle holes of the multiple circular magnetic stainless steel baffles of the multiple axial magnetic circuit multi-pole special-shaped tooth-space-omitted deceleration type motor protectors. The axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector is applied to large space occasions for protecting the motor.
Description
Technical field
The present invention relates to a kind of motor protecter, belong to electric motor protecting equipment technical field.
Background technology
Reducing gear (as decelerator) friction the impurity such as the iron filings that produce have important impact to long-time effectively operation of permagnetic synchronous motor (hereinafter referred to as motor), simultaneously the impurity such as iron filings also can produce harmful effect to the serviceability of motor for a long time in motor body, not only make electrical machmary maintenance cost increase, also can have a strong impact on the useful life of motor.Therefore how reducing the impurity such as iron filings enters in motor body, and effectively improve performance and the life-span of motor, the maintenance cost reducing motor is current problem demanding prompt solution.
Summary of the invention
The object of this invention is to provide a kind of axial magnetic circuit multistage multipole abnormity slotless deceleration type motor protecter, to solve at present because of without motor protecter, motor serviceability and life-span all can be reduced, and increase the problem of electrical machmary maintenance cost.
The present invention solves the problem the technical scheme taked respectively:
Axial magnetic circuit multistage multipole abnormity slotless deceleration type motor protecter, it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter, and each axial magnetic circuit multipole slotless deceleration type motor protecter includes non-magnetic stainless steel sleeve, multiple permanent magnet, multiple magnetic stainless steel cover and multiple circular magnetic stainless steel baffle plate;
Described multiple permanent magnets are disc-shape, the permanent magnet of multiple disc-shape is fixed in non-magnetic stainless steel sleeve along the axis of non-magnetic stainless steel sleeve side by side, the magnetic circuit of the permanent magnet of multiple disc-shape is arranged all vertically, often the polarity of the permanent magnet of adjacent two disc-shapes is arranged on the contrary, between the permanent magnet of every adjacent two disc-shapes and in non-magnetic stainless steel sleeve two disc-shapes at two ends permanent magnet outside be fixed with a circular magnetic stainless steel baffle plate respectively, the middle part of described multiple circular magnetic stainless steel baffle plate is equipped with axis hole, and the axis hole aperture of one of them circular magnetic stainless steel baffle plate of the multiple circular magnetic stainless steel baffle plate of each axial magnetic circuit multipole slotless deceleration type motor protecter is less than the axis hole aperture of the circular magnetic stainless steel baffle plate of all remainders, the middle part of the permanent magnet of multiple disc-shape is equipped with installing hole, a magnetic stainless steel cover is all fixed with in each installing hole, the inner peripheral surface of described magnetic stainless steel cover is special-shaped slotless structure, the aperture, one end of the inner peripheral surface of magnetic stainless steel cover is less than other end aperture, often one end, small-bore of the inner peripheral surface of adjacent two magnetic stainless steel cover is disposed adjacent with one end, large aperture, multiple axial magnetic circuit multipole slotless deceleration type motor protecter is coaxially arranged, during use, the output shaft of described motor passes multiple magnetic stainless steel covers of multiple axial magnetic circuit multipole slotless deceleration type motor protecter and the axis hole of multiple circular magnetic stainless steel baffle plate, and each axial magnetic circuit multipole slotless deceleration type motor protecter is less than the circular magnetic stainless steel baffle plate axis hole aperture away from motor from the circular magnetic stainless steel baffle plate axis hole aperture that motor is nearest, gap is equipped with between the minor diameter inner peripheral surface of the inner peripheral surface that the axis hole aperture of the circular magnetic stainless steel baffle plate of each axial magnetic circuit multipole slotless deceleration type motor protecter is minimum and magnetic stainless steel cover and the output shaft of motor.
The present invention relative to the beneficial effect of prior art is:
1, adopt axial magnetic circuit of the present invention multistage multipole abnormity slotless deceleration type motor protecter, only need carry out installing according to reserved space between motor and decelerator, effectively can reduce iron filings impurity etc. and enter in motor body.Because protector structure pattern of the present invention is simple, easy processing and manufacturing, and the effect highly significant to electric motor protecting.Practice shows, after being provided with protector of the present invention, effectively can improve motor useful life more than 25%, reduce motor operation expense more than 15%, can use under the particular surroundings such as oil, deep-sea.
2, the stepped setting of inner peripheral surface of magnetic stainless steel cover, object plays certain cushioning effect to impurity such as iron filings in adsorption process, successively slowed down by the impurity such as iron filings, makes adsorption effect better.
To sum up, axial magnetic circuit of the present invention multistage multipole abnormity slotless deceleration type motor protecter is applicable to the occasion of larger space, due to the cause of multilevel hierarchy, better to the protected effect of motor.
Accompanying drawing explanation
Fig. 1 is the main cutaway view of axial magnetic circuit of the present invention multistage multipole abnormity slotless deceleration type motor protecter;
Fig. 2 is the front view be arranged on by multistage for axial magnetic circuit of the present invention multipole abnormity slotless deceleration type motor protecter between motor and decelerator;
Fig. 3 is the left view of Fig. 2.
The component names related in above-mentioned figure and label are respectively:
Non-magnetic stainless steel sleeve 1, circular magnetic stainless steel baffle plate 2, permanent magnet 3, magnetic stainless steel cover 4, output shaft 5, decelerator 6, axial magnetic circuit multipole slotless deceleration type motor protecter 7, motor 8.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail: the present embodiment is implemented under premised on technical solution of the present invention, gives detailed execution mode, but protection scope of the present invention is not limited to following embodiment.
Embodiment one: as depicted in figs. 1 and 2, axial magnetic circuit multistage multipole abnormity slotless deceleration type motor protecter, it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter 7, and each axial magnetic circuit multipole slotless deceleration type motor protecter 7 includes non-magnetic stainless steel sleeve 1, multiple permanent magnet 3, multiple magnetic stainless steel cover 4 and multiple circular magnetic stainless steel baffle plate 2;
Described multiple permanent magnets 3 are disc-shape, the permanent magnet 3 of multiple disc-shape is fixed in non-magnetic stainless steel sleeve 1 along the axis of non-magnetic stainless steel sleeve 1 side by side, the magnetic circuit of the permanent magnet 3 of multiple disc-shape is arranged all vertically, often the polarity of the permanent magnet 3 of adjacent two disc-shapes is arranged on the contrary, between the permanent magnet 3 of every adjacent two disc-shapes and in non-magnetic stainless steel sleeve 1 two disc-shapes at two ends permanent magnet 3 outside be fixed with a circular magnetic stainless steel baffle plate 2 respectively, the middle part of described multiple circular magnetic stainless steel baffle plate 2 is equipped with axis hole, and the axis hole aperture of one of them circular magnetic stainless steel baffle plate 2 of the multiple circular magnetic stainless steel baffle plate 2 of each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is less than the axis hole aperture of the circular magnetic stainless steel baffle plate 2 of all remainders, the middle part of the permanent magnet 3 of multiple disc-shape is equipped with installing hole, a magnetic stainless steel cover 4 is all fixed with in each installing hole, the inner peripheral surface of described magnetic stainless steel cover 4 is special-shaped slotless structure, the aperture, one end of the inner peripheral surface of magnetic stainless steel cover 4 is less than other end aperture, often one end, small-bore of the inner peripheral surface of adjacent two magnetic stainless steel cover 4 is disposed adjacent with one end, large aperture, multiple axial magnetic circuit multipole slotless deceleration type motor protecter 7 is coaxially arranged, during use, the output shaft 5 of described motor 8 passes multiple magnetic stainless steel covers 4 of multiple axial magnetic circuit multipole slotless deceleration type motor protecter 7 and the axis hole of multiple circular magnetic stainless steel baffle plate 2, and each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is less than the circular magnetic stainless steel baffle plate 2 axis hole aperture away from motor 8 from the circular magnetic stainless steel baffle plate 2 axis hole aperture that motor 8 is nearest, gap is equipped with between the minor diameter inner peripheral surface of the inner peripheral surface that the axis hole aperture of the circular magnetic stainless steel baffle plate 2 of each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is minimum and magnetic stainless steel cover 4 and the output shaft 5 of motor 8.
The preferred spaced set vertically of multiple axial magnetic circuit multipole slotless deceleration type motor protecter 7, makes its more effective reduction iron filings impurity etc. enter in motor body.The quantity of axial magnetic circuit multipole slotless deceleration type motor protecter 7 and installation site are determined according to space reserved between motor 8 and decelerator 6.This execution mode is used for the occasion of larger space, protects motor.
Embodiment two: as shown in Figure 1; axial magnetic circuit described in embodiment one multistage multipole abnormity slotless deceleration type motor protecter, the inner peripheral surface of the magnetic stainless steel cover 4 of described each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is stairstepping.Object plays certain cushioning effect, successively slowed down by the impurity such as iron filings, is more conducive to absorption.
The inner peripheral surface of magnetic stainless steel cover 4 is not limited to stairstepping, and the inner peripheral surface of magnetic stainless steel cover 4 is all can meet all admissible of slotless structure.
Embodiment three: as shown in Figure 1; axial magnetic circuit described in embodiment two multistage multipole abnormity slotless deceleration type motor protecter, the gap between the minor diameter inner peripheral surface of the inner peripheral surface that the axis hole aperture of the circular magnetic stainless steel baffle plate 2 of described each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is minimum and magnetic stainless steel cover 4 and the output shaft 5 of motor 8 is equal and be 1 ~ 2mm.Both ensure that the normal operation of motor 8, and iron filings impurity etc. can also have been intercepted to greatest extent simultaneously and enter in motor body.
Embodiment four: as shown in Figure 1; axial magnetic circuit described in embodiment two or three multistage multipole abnormity slotless deceleration type motor protecter; every adjacent steps difference in height of the stairstepping inner peripheral surface of described magnetic stainless steel cover 4 is all equal, the identical length etc. of every adjacent steps of the stairstepping inner peripheral surface of magnetic stainless steel cover 4.Object plays certain cushioning effect, successively slowed down by the impurity such as iron filings, and be more conducive to absorption, adsorption effect is better than embodiment two, and convenient processing.
Operation principle: as shown in Fig. 1 ~ Fig. 3, motor protecter 7 of the present invention is coaxially installed with motor 8 and decelerator 6, and motor protecter 7 is arranged between motor 8 and decelerator 6, and each axial magnetic circuit multipole slotless deceleration type motor protecter 7 is less than the circular magnetic stainless steel baffle plate 2 axis hole aperture away from motor 8 from the circular magnetic stainless steel baffle plate 2 axis hole aperture that motor 8 is nearest, owing to adopting multiple axial magnetic circuit multipole slotless deceleration type motor protecter 7, under the effect of the permanent magnet 3 of multiple disc-shape, the impurity such as iron filings are adsorbed on the surface of all circular magnetic stainless steel baffle plates 2 and magnetic stainless steel cover 4, and the internal body of motor 8 can not be sucked, gap between the minor diameter inner peripheral surface of the inner peripheral surface minimum due to the axis hole aperture of the circular magnetic stainless steel baffle plate 2 of each axial magnetic circuit multipole slotless deceleration type motor protecter 7 and magnetic stainless steel cover 4 and the output shaft 5 of motor 8 is very little, only has 1 ~ 2mm, so larger-diameter iron filings particle can be blocked in motor body outside, and make multiple magnetic stainless steel overlap the stairstepping inner peripheral surface of 4, cushioning effect is step by step served when adsorbing the impurity such as iron filings, and then more excellent protective effect is served to motor 8, effectively prevent the impurity such as the iron filings produced due to decelerator 6 mechanical friction enter the inside of motor 8 and cause the decline of motor 8 performance, improve the useful life of motor 8 and decelerator 6 thereof, described motor 8 is permagnetic synchronous motor.
Claims (4)
1. an axial magnetic circuit multistage multipole abnormity slotless deceleration type motor protecter, it is characterized in that: it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter (7), each axial magnetic circuit multipole slotless deceleration type motor protecter (7) includes non-magnetic stainless steel sleeve (1), multiple permanent magnet (3), multiple magnetic stainless steel cover (4) and multiple circular magnetic stainless steel baffle plate (2);
Described multiple permanent magnets (3) are disc-shape, the permanent magnet (3) of multiple disc-shape is fixed in non-magnetic stainless steel sleeve (1) along the axis of non-magnetic stainless steel sleeve (1) side by side, the magnetic circuit of the permanent magnet (3) of multiple disc-shape is arranged all vertically, often the polarity of the permanent magnet (3) of adjacent two disc-shapes is arranged on the contrary, a circular magnetic stainless steel baffle plate (2) is fixed with respectively between the permanent magnet (3) of every adjacent two disc-shapes and outside the permanent magnet (3) of two disc-shapes at non-magnetic stainless steel sleeve (1) interior two ends, the middle part of described multiple circular magnetic stainless steel baffle plate (2) is equipped with axis hole, and the axis hole aperture of one of them circular magnetic stainless steel baffle plate (2) of the multiple circular magnetic stainless steel baffle plate (2) of each axial magnetic circuit multipole slotless deceleration type motor protecter (7) is less than the axis hole aperture of the circular magnetic stainless steel baffle plate (2) of all remainders, the middle part of the permanent magnet (3) of multiple disc-shape is equipped with installing hole, a magnetic stainless steel cover (4) is all fixed with in each installing hole, the inner peripheral surface of described magnetic stainless steel cover (4) is special-shaped slotless structure, the aperture, one end of the inner peripheral surface of magnetic stainless steel cover (4) is less than other end aperture, often one end, small-bore of the inner peripheral surface of adjacent two magnetic stainless steel covers (4) is disposed adjacent with one end, large aperture, multiple axial magnetic circuit multipole slotless deceleration type motor protecter (7) is coaxially arranged, during use, the output shaft (5) of described motor (8) passes multiple magnetic stainless steel cover (4) of multiple axial magnetic circuit multipole slotless deceleration type motor protecter (7) and the axis hole of multiple circular magnetic stainless steel baffle plate (2), and each axial magnetic circuit multipole slotless deceleration type motor protecter (7) is less than circular magnetic stainless steel baffle plate (2) the axis hole aperture away from motor (8) from circular magnetic stainless steel baffle plate (2) the axis hole aperture that motor (8) is nearest, gap is equipped with between the minor diameter inner peripheral surface of the inner peripheral surface that the axis hole aperture of the circular magnetic stainless steel baffle plate (2) of each axial magnetic circuit multipole slotless deceleration type motor protecter (7) is minimum and magnetic stainless steel cover (4) and the output shaft (5) of motor (8).
2. axial magnetic circuit according to claim 1 multistage multipole abnormity slotless deceleration type motor protecter, is characterized in that: the inner peripheral surface of the magnetic stainless steel cover (4) of described each axial magnetic circuit multipole slotless deceleration type motor protecter (7) is stairstepping.
3. axial magnetic circuit according to claim 2 multistage multipole abnormity slotless deceleration type motor protecter, is characterized in that: the gap between the minor diameter inner peripheral surface of the inner peripheral surface that the axis hole aperture of the circular magnetic stainless steel baffle plate (2) of described each axial magnetic circuit multipole slotless deceleration type motor protecter (7) is minimum and magnetic stainless steel cover (4) and the output shaft (5) of motor (8) is equal and be 1 ~ 2mm.
4. the multistage multipole abnormity of the axial magnetic circuit according to Claims 2 or 3 slotless deceleration type motor protecter; it is characterized in that: every adjacent steps difference in height of the stairstepping inner peripheral surface of described magnetic stainless steel cover (4) is all equal, the identical length etc. of every adjacent steps of the stairstepping inner peripheral surface of magnetic stainless steel cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151070.1A CN104702030A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151070.1A CN104702030A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector |
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| Publication Number | Publication Date |
|---|---|
| CN104702030A true CN104702030A (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510151070.1A Pending CN104702030A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole special-shaped tooth-space-omitted deceleration type motor protector |
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| CN (1) | CN104702030A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649137A (en) * | 1970-11-30 | 1972-03-14 | Nikolaus Laing | Centrifugal pump with magnetic coupling |
| CN2097040U (en) * | 1991-06-30 | 1992-02-26 | 赵承树 | Magnetic separator |
| US20100308601A1 (en) * | 2009-06-04 | 2010-12-09 | Wardenclyffe Technologies LLC | Permanent Magnet Motion Amplified Motor and Control System |
| CN202068296U (en) * | 2011-06-22 | 2011-12-07 | 哈尔滨理工大学 | Improved U-shaped single-phase permanent magnetic synchronous motor |
| CN202634111U (en) * | 2012-05-14 | 2012-12-26 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
-
2015
- 2015-04-01 CN CN201510151070.1A patent/CN104702030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649137A (en) * | 1970-11-30 | 1972-03-14 | Nikolaus Laing | Centrifugal pump with magnetic coupling |
| CN2097040U (en) * | 1991-06-30 | 1992-02-26 | 赵承树 | Magnetic separator |
| US20100308601A1 (en) * | 2009-06-04 | 2010-12-09 | Wardenclyffe Technologies LLC | Permanent Magnet Motion Amplified Motor and Control System |
| CN202068296U (en) * | 2011-06-22 | 2011-12-07 | 哈尔滨理工大学 | Improved U-shaped single-phase permanent magnetic synchronous motor |
| CN202634111U (en) * | 2012-05-14 | 2012-12-26 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
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Application publication date: 20150610 |
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