CN104702024A - Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector - Google Patents
Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector Download PDFInfo
- Publication number
- CN104702024A CN104702024A CN201510151028.XA CN201510151028A CN104702024A CN 104702024 A CN104702024 A CN 104702024A CN 201510151028 A CN201510151028 A CN 201510151028A CN 104702024 A CN104702024 A CN 104702024A
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- China
- Prior art keywords
- disc
- stainless steel
- permanent magnet
- magnetic circuit
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses an axial magnetic circuit multistage multi-pole 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 tooth-space-omitted deceleration type motor protectors, multiple permanent magnets are all of a disc shape; the multiple disc-shaped permanent magnets are fixed into a nonmagnetic stainless steel sleeve in the axial direction of the nonmagnetic stainless steel sleeve in parallel; magnetic circuits of the multiple disc-shaped permanent magnets are all arranged in the axial direction, and the polarities of every two adjacent disc-shaped permanent magnets are oppositely set; 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; axle holes are formed in the middle of all the circular magnetic stainless steel baffles; axle holes are formed in the middle of all the disc-shaped permanent magnets; the axle holes of the multiple disc-shaped permanent magnets and the axle holes of the multiple circular magnetic stainless steel baffles are coaxially arranged. The axial magnetic circuit multistage multi-pole 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 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.
technical scheme of the present invention is:
Axial magnetic circuit multistage multipole slotless deceleration type motor protecter, it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5, and each axial magnetic circuit multipole slotless deceleration type motor protecter 5 includes non-magnetic stainless steel sleeve 1, multiple permanent magnet 3 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, and 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, the middle part of the permanent magnet 3 of multiple disc-shape is equipped with axis hole, the axis hole of the permanent magnet 3 of described multiple disc-shapes and the axis hole of multiple circular magnetic stainless steel baffle plate 2 are coaxially arranged, multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5 is coaxially arranged, during use, the output shaft 4 of described motor 6 passes the axis hole of permanent magnet 3 and the axis hole of multiple circular magnetic stainless steel baffle plate 2 of the disc-shape of multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5, and be equipped with gap between the axle hole inner circle side face of the axle hole inner circle side face of the permanent magnet 3 of each disc-shape and each circular magnetic stainless steel baffle plate 2 and the output shaft 4 of motor 6.
the invention has the beneficial effects as follows:
1, adopt axial magnetic circuit of the present invention multistage multipole 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 27%, reduce motor operation expense more than 17%, can use under the particular surroundings such as oil, deep-sea.
2, axial magnetic circuit of the present invention multistage multipole 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 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 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, output shaft 4, axial magnetic circuit multipole slotless deceleration type motor protecter 5, motor 6, decelerator 7.
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 slotless deceleration type motor protecter, it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5, and each axial magnetic circuit multipole slotless deceleration type motor protecter 5 includes non-magnetic stainless steel sleeve 1, multiple permanent magnet 3 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, and 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, the middle part of the permanent magnet 3 of multiple disc-shape is equipped with axis hole, the axis hole of the permanent magnet 3 of described multiple disc-shapes and the axis hole of multiple circular magnetic stainless steel baffle plate 2 are coaxially arranged, multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5 is coaxially arranged, during use, the output shaft 4 of described motor 6 passes the axis hole of permanent magnet 3 and the axis hole of multiple circular magnetic stainless steel baffle plate 2 of the disc-shape of multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5, and be equipped with gap between the axle hole inner circle side face of the axle hole inner circle side face of the permanent magnet 3 of each disc-shape and each circular magnetic stainless steel baffle plate 2 and the output shaft 4 of motor 6.
The preferred spaced set vertically of multiple axial magnetic circuit multipole slotless deceleration type motor protecter 5, 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 5 and installation site are determined according to space reserved between motor 6 and decelerator 7.
The polarity of the permanent magnet 3 of the disc-shape of adjacent two axial magnetic circuit multipole slotless deceleration type motor protecters 5 is arranged on the contrary, and object is: the consistency of holding structure, thus is beneficial to assembling.
embodiment two:
As depicted in figs. 1 and 2; axial magnetic circuit described in embodiment one multistage multipole slotless deceleration type motor protecter, the axle hole inner circle side face of the permanent magnet 3 of described each disc-shape and the gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate 2 and the output shaft 4 of motor 6 are 1 ~ 2mm.Both ensure that the normal operation of motor 6, and iron filings impurity etc. can also have been intercepted to greatest extent simultaneously and enter in motor body.
Operation principle: as shown in Fig. 1 ~ Fig. 3, coaxially installs multistage for axial magnetic circuit of the present invention multipole slotless deceleration type motor protecter and motor 6 and decelerator 7, and is arranged between motor 6 and decelerator 7.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 6; Due to the output shaft 4 of motor 6 and the axle hole inner circle side face of the permanent magnet 3 of disc-shape 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 6, effectively prevent the impurity such as the iron filings produced due to decelerator 7 mechanical friction enter the inside of motor 6 and cause the decline of motor 6 performance, improve the useful life of motor 6 and decelerator 7 thereof; Described motor 6 is permagnetic synchronous motor.
Claims (2)
1. an axial magnetic circuit multistage multipole slotless deceleration type motor protecter, it is characterized in that: it comprises multiple axial magnetic circuit multipole slotless deceleration type motor protecter (5), each axial magnetic circuit multipole slotless deceleration type motor protecter (5) includes non-magnetic stainless steel sleeve (1), multiple permanent magnet (3) and multiple circular magnetic stainless steel baffle plate (2);
Described multiple permanent magnet 3(3) be 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, and 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, the middle part of the permanent magnet (3) of multiple disc-shape is equipped with axis hole, the axis hole of the permanent magnet (3) of described multiple disc-shapes and the axis hole of multiple circular magnetic stainless steel baffle plate (2) are coaxially arranged, multiple axial magnetic circuit multipole slotless deceleration type motor protecter (5) is coaxially arranged, during use, the output shaft (4) of described motor (6) passes the axis hole of the permanent magnet (3) of the disc-shape of multiple axial magnetic circuit multipole slotless deceleration type motor protecter (5) and the axis hole of multiple circular magnetic stainless steel baffle plate (2), and be equipped with gap between the axle hole inner circle side face of the axle hole inner circle side face of the permanent magnet of each disc-shape (3) and each circular magnetic stainless steel baffle plate (2) and the output shaft (4) of motor (6).
2. axial magnetic circuit according to claim 1 multistage multipole slotless deceleration type motor protecter, is characterized in that: the axle hole inner circle side face of the permanent magnet (3) of described each disc-shape and the gap between the axle hole inner circle side face of each circular magnetic stainless steel baffle plate (2) and the output shaft (4) of motor (6) are 1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151028.XA CN104702024A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151028.XA CN104702024A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702024A true CN104702024A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510151028.XA Pending CN104702024A (en) | 2015-04-01 | 2015-04-01 | Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector |
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| CN (1) | CN104702024A (en) |
Citations (9)
| 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 |
| CN1299302A (en) * | 1998-05-08 | 2001-06-13 | 约翰·马龙 | Magnetic filtration system |
| 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 |
| CN201588921U (en) * | 2010-02-04 | 2010-09-22 | 浙江坤鸿机械设备有限公司 | Speed reducer for electric automobile |
| CN104235324A (en) * | 2014-09-10 | 2014-12-24 | 西安威盛电子科技股份有限公司 | Ferromagnetic debris collection device of speed reducer |
| CN104300757A (en) * | 2014-10-24 | 2015-01-21 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous motor |
-
2015
- 2015-04-01 CN CN201510151028.XA patent/CN104702024A/en active Pending
Patent Citations (9)
| 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 |
| CN1299302A (en) * | 1998-05-08 | 2001-06-13 | 约翰·马龙 | Magnetic filtration system |
| 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 |
| CN201588921U (en) * | 2010-02-04 | 2010-09-22 | 浙江坤鸿机械设备有限公司 | Speed reducer for electric automobile |
| CN104235324A (en) * | 2014-09-10 | 2014-12-24 | 西安威盛电子科技股份有限公司 | Ferromagnetic debris collection device of speed reducer |
| CN104300757A (en) * | 2014-10-24 | 2015-01-21 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous motor |
Non-Patent Citations (2)
| Title |
|---|
| 尉询楷等: "《航空发动机预测与健康管理》", 31 January 2014, 国防工业出版社 * |
| 海洋石油高效开发国家重点实验室编: "《海上稠油高效开发新技术 2012》", 31 January 2013, 石油工业出版社 * |
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Application publication date: 20150610 |
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