CN104702032A - Radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector - Google Patents
Radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector Download PDFInfo
- Publication number
- CN104702032A CN104702032A CN201510151077.3A CN201510151077A CN104702032A CN 104702032 A CN104702032 A CN 104702032A CN 201510151077 A CN201510151077 A CN 201510151077A CN 104702032 A CN104702032 A CN 104702032A
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- Prior art keywords
- stainless steel
- magnetic stainless
- tooth
- facewidth
- motor
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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)
Abstract
The invention provides a radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector and belongs to the technical field of motor protection devices. The radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector aims at solving the problem that at present, due to the fact that no motor protector exists, the using performance of a motor is reduced, the service life of the motor is shortened, and the maintenance cost of the motor is increased. Multiple disk-shaped permanent magnets are fixedly installed in a non-magnetic stainless steel sleeve, a round magnetic stainless steel baffle is fixed between every two adjacent permanent magnets, round magnetic stainless steel baffles are respectively fixed to the outer sides of the two permanent magnets located at two ends, and a magnetic stainless steel sleeve is fixed in an installing hole formed in each disk-shaped permanent magnet. When the radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector is used, an output shaft of the motor penetrates through the magnetic stainless steel sleeves and shaft holes formed in the multiple round magnetic stainless steel baffles of multiple radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protectors, and gaps are reserved between the circumferential faces of tooth crests of a plurality of equal-tooth-width teeth of each magnetic stainless steel sleeve and the output shaft of the motor and between the shaft holes of the round magnetic stainless steel baffles and the output shaft of the motor. The radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector is used on a larger-space occasion and used for motor protection.
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 radial magnetic circuit multistage multipole facewidth deceleration type motor protecter such as not, to solve at present because of without motor protecter, motor serviceability and life-span all can be reduced, and the problem of increase electrical machmary maintenance cost.
The present invention solves the problem the technical scheme taked respectively:
The radial magnetic circuit multistage multipole facewidth deceleration type motor protecter such as not, it comprises multiple radial magnetic circuit multipole facewidth deceleration type motor protecter such as not, and each radial magnetic circuit multipole facewidth deceleration type motor protecter such as not 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 all disposed radially, 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, 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 N pole of the permanent magnet of multiple disc-shape is disposed adjacent with non-magnetic stainless steel sleeve, the S pole of the permanent magnet of multiple disc-shape is disposed adjacent with multiple magnetic stainless steel cover, described multiple magnetic stainless steel covers are coaxially arranged with the axis hole of multiple circular magnetic stainless steel baffle plate, the inner peripheral surface of each magnetic stainless steel cover is processed with vertically the tooth of several facewidth such as not, multiple radial magnetic circuit multipole facewidth deceleration type motor protecter such as not is coaxially arranged, during use, the output shaft of described motor passes multiple radial magnetic circuit multipole multiple magnetic stainless steel covers of facewidth deceleration type motor protecter and axis hole of multiple circular magnetic stainless steel baffle plate such as not, and the outside circle side face of tooth of several facewidth such as not of each magnetic stainless steel cover and be equipped with gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate and the output shaft of motor.
The present invention relative to the beneficial effect of prior art is:
The facewidth deceleration type motor protecter such as 1, adopt the multistage multipole of radial magnetic circuit of the present invention not, only need carry out installing according to reserved space, effectively can reduce iron filings impurity etc. and enter in motor body between motor and decelerator.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 27%, reduce motor operation expense more than 17%, can use under the particular surroundings such as oil, deep-sea.
the inner peripheral surface of 2, magnetic stainless steel cover is processed with vertically the tooth of several facewidth such as not, object is the area in order to increase adsorbing contaminant, and owing to adopting multiple magnetic stainless steel cover, the ability of adsorbing contaminant is stronger, and adsorbance is larger, and adsorption effect is better.
To sum up, the radial magnetic circuit of the present invention multistage multipole facewidth deceleration type motor protecter such as is not 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 radial magnetic circuit of the present invention multistage multipole main cutaway view of facewidth deceleration type motor protecter such as not;
Fig. 2 be by multistage for radial magnetic circuit of the present invention multipole not etc. facewidth deceleration type motor protecter be arranged on the front view 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:
The tooth 4-1 of non-magnetic stainless steel sleeve 1, circular magnetic stainless steel baffle plate 2, permanent magnet 3, magnetic stainless steel cover 4, the facewidth such as not, output shaft 5, decelerator 6, radial magnetic circuit multipole facewidth deceleration type motor protecter 7, the motor 8 such as not.
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, the radial magnetic circuit multistage multipole facewidth deceleration type motor protecter such as not, it comprises multiple radial magnetic circuit multipole facewidth deceleration type motor protecter 7 such as not, and each radial magnetic circuit multipole facewidth deceleration type motor protecter 7 such as not 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 all disposed radially, 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, 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 N pole of the permanent magnet 3 of multiple disc-shape is disposed adjacent with non-magnetic stainless steel sleeve 1, S pole and multiple magnetic stainless steel of the permanent magnet 3 of multiple disc-shape are overlapped 4 and are disposed adjacent, thus make axle system, air gap, complete closed magnetic circuit is formed between permanent magnet.Described multiple magnetic stainless steel covers 4 are coaxially arranged with the axis hole of multiple circular magnetic stainless steel baffle plate 2, the inner peripheral surface of each magnetic stainless steel cover 4 is processed with vertically the tooth 4-1 of several facewidth such as not, multiple radial magnetic circuit multipole facewidth deceleration type motor protecter 7 such as not is coaxially arranged; During use; the output shaft 5 of described motor 8 passes multiple radial magnetic circuit multipole multiple magnetic stainless steel covers 4 of facewidth deceleration type motor protecter 7 and axis hole of multiple circular magnetic stainless steel baffle plate 2 such as not, and the outside circle side face of tooth 4-1 of several facewidth such as not of each magnetic stainless steel cover 4 and be equipped with gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate 2 and the output shaft 5 of motor 8.
The shape of the tooth 4-1 of the facewidth such as not on the inner peripheral surface of magnetic stainless steel cover 4 is not limit, and can be rectangular teeth, stepped tooth or lance tooth etc., convenient processing.
Multiple radial magnetic circuit multipole the facewidth deceleration type motor protecter 7 preferably spaced set vertically such as not, and its more effective reduction iron filings impurity etc. is entered in motor body.The radial magnetic circuit multipole quantity of facewidth deceleration type motor protecter 7 and the installation site such as is not determined according to space reserved between motor 8 and decelerator 6.
Embodiment two: as depicted in figs. 1 and 2; radial magnetic circuit described in the embodiment one multistage multipole facewidth deceleration type motor protecter such as not, several outside circle side face of tooth 4-1 of the facewidth such as or not described each magnetic stainless steel cover 4 and the gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate 2 and the output shaft 5 of motor 8 are 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 three: as shown in Figure 1, the multistage multipole of the radial magnetic circuit described in embodiment one or two facewidth deceleration type motor protecter such as not, the tooth depth of the tooth 4-1 of several facewidth such as or not described each magnetic stainless steel cover 4 is all equal.Object is convenient processing.
Operation principle: as shown in Fig. 1 ~ Fig. 3, by multistage for radial magnetic circuit of the present invention multipole not etc. facewidth deceleration type motor protecter and motor 8 and decelerator 6 coaxially install, and to be arranged between motor 8 and decelerator 6.Due to the effect of the permanent magnet 3 of disc-shape, the impurity such as iron filings are adsorbed on the surface of each circular magnetic stainless steel baffle plate 2 and each magnetic stainless steel cover 4, and can not suck the internal body of motor 8; The outside circle side face of the tooth 4-1 of several facewidth such as or not output shaft 5 and magnetic stainless steel due to motor 8 overlap 4 and the axle hole inner circle side face gap of circular magnetic stainless steel baffle plate 2 very little, only has 1 ~ 2mm, so larger-diameter iron filings particle can be blocked in motor body outside, and then serve the effect of protection 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 (3)
1. the radial magnetic circuit multistage multipole facewidth deceleration type motor protecter such as not, it is characterized in that: it comprises multiple radial magnetic circuit multipole facewidth deceleration type motor protecter (7) such as not, each radial magnetic circuit multipole facewidth deceleration type motor protecter (7) such as not 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 all disposed radially, 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, 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 N pole of the permanent magnet (3) of multiple disc-shape is disposed adjacent with non-magnetic stainless steel sleeve (1), the S pole of the permanent magnet (3) of multiple disc-shape is disposed adjacent with multiple magnetic stainless steel cover (4), described multiple magnetic stainless steel cover (4) is coaxially arranged with the axis hole of multiple circular magnetic stainless steel baffle plate (2), the inner peripheral surface of each magnetic stainless steel cover (4) is processed with vertically the tooth (4-1) of several facewidth such as not, multiple radial magnetic circuit multipole facewidth deceleration type motor protecter (7) such as not is coaxially arranged, during use, the output shaft (5) of described motor (8) passes multiple radial magnetic circuit multipole multiple magnetic stainless steel cover (4) of facewidth deceleration type motor protecter (7) and axis hole of multiple circular magnetic stainless steel baffle plate (2) such as not, and the outside circle side face of tooth (4-1) of several facewidth such as not of each magnetic stainless steel cover (4) and be equipped with gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate (2) and the output shaft (5) of motor (8).
2. the radial magnetic circuit according to claim 1 multistage multipole facewidth deceleration type motor protecter such as not, is characterized in that: several outside circle side face of tooth (4-1) of the facewidth such as or not described each magnetic stainless steel cover (4) and the gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate (2) and the output shaft (5) of motor (8) are 1 ~ 2mm.
3. the radial magnetic circuit according to claim 1 and 2 multistage multipole facewidth deceleration type motor protecter such as not, is characterized in that: the tooth depth of the tooth (4-1) of several facewidth such as or not described each magnetic stainless steel cover (4) is all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151077.3A CN104702032A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151077.3A CN104702032A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702032A true CN104702032A (en) | 2015-06-10 |
Family
ID=53348886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510151077.3A Pending CN104702032A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole unequal-tooth-width speed reduction type motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104702032A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097040U (en) * | 1991-06-30 | 1992-02-26 | 赵承树 | Magnetic separator |
| JPH11178282A (en) * | 1997-12-12 | 1999-07-02 | Railway Technical Res Inst | Iron powder remover for ventilation cooling system rotating electric machine |
| JP2002300750A (en) * | 2001-03-29 | 2002-10-11 | Railway Technical Res Inst | Iron powder removal device for air-cooled rotary electric machine |
| CN2675267Y (en) * | 2003-12-23 | 2005-02-02 | 张景聪 | Strong magnetic magnet |
| CN201008805Y (en) * | 2006-12-28 | 2008-01-23 | 赵维珂 | Electric-magnetic iron remover |
| CN203044151U (en) * | 2012-12-26 | 2013-07-10 | 重庆神工机械制造有限责任公司 | Magnetic roller of chip cleaner |
| CN203604006U (en) * | 2013-12-28 | 2014-05-21 | 张瑞新 | Automobile magnetic filter |
-
2015
- 2015-04-01 CN CN201510151077.3A patent/CN104702032A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097040U (en) * | 1991-06-30 | 1992-02-26 | 赵承树 | Magnetic separator |
| JPH11178282A (en) * | 1997-12-12 | 1999-07-02 | Railway Technical Res Inst | Iron powder remover for ventilation cooling system rotating electric machine |
| JP2002300750A (en) * | 2001-03-29 | 2002-10-11 | Railway Technical Res Inst | Iron powder removal device for air-cooled rotary electric machine |
| CN2675267Y (en) * | 2003-12-23 | 2005-02-02 | 张景聪 | Strong magnetic magnet |
| CN201008805Y (en) * | 2006-12-28 | 2008-01-23 | 赵维珂 | Electric-magnetic iron remover |
| CN203044151U (en) * | 2012-12-26 | 2013-07-10 | 重庆神工机械制造有限责任公司 | Magnetic roller of chip cleaner |
| CN203604006U (en) * | 2013-12-28 | 2014-05-21 | 张瑞新 | Automobile magnetic filter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |