CN104702033A - Radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector - Google Patents
Radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector Download PDFInfo
- Publication number
- CN104702033A CN104702033A CN201510151078.8A CN201510151078A CN104702033A CN 104702033 A CN104702033 A CN 104702033A CN 201510151078 A CN201510151078 A CN 201510151078A CN 104702033 A CN104702033 A CN 104702033A
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- China
- Prior art keywords
- stainless steel
- magnetic stainless
- motor
- permanent magnet
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention provides a radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector and belongs to the technical field of motor protection devices. The radial magnetic circuit multistage multiple-pole tooth-groove-free 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 permanent magnets (3) are all disk-shaped, the multiple disk-shaped permanent magnets are parallelly fixed in a non-magnetic stainless steel sleeve in the axial direction of the non-magnetic stainless steel sleeve (1), magnetic circuits of the multiple disk-shaped permanent magnets are arranged in the radial direction, a round magnetic stainless steel baffle (2) is fixed between every two adjacent disk-shaped permanent magnets, round magnetic stainless steel baffles (2) are respectively fixed to the outer sides of the two disk-shaped permanent magnets close to two ends in the non-magnetic stainless steel sleeve, shaft holes are formed in the middles of the multiple round magnetic stainless steel baffles, shaft holes are formed in the middles of the multiple disk-shaped permanent magnets, N poles of the multiple disk-shaped permanent magnets are adjacent to the non-magnetic stainless steel sleeve, and S poles of the multiple disk-shaped permanent magnets are adjacent to an output shaft (4) of the motor (6). The radial magnetic circuit multistage multiple-pole tooth-groove-free 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 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:
Radial magnetic circuit multistage multipole slotless deceleration type motor protecter, it comprises multiple radial magnetic circuit multipole slotless deceleration type motor protecter 5, and each radial 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 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 axis 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 the output shaft 4 of motor 6, 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 radial 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 multiple disc-shapes of multiple radial 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 radial 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, radial 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 radial 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 radial 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, radial 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, radial magnetic circuit multistage multipole slotless deceleration type motor protecter, it comprises multiple radial magnetic circuit multipole slotless deceleration type motor protecter 5, and each radial 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 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 axis 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 the output shaft 4 of motor 6, 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 radial 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 multiple disc-shapes of multiple radial 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 radial 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 radial 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 N pole of the permanent magnet 3 of multiple disc-shape is disposed adjacent with non-magnetic stainless steel sleeve 1, and the S pole of the permanent magnet 3 of multiple disc-shape is disposed adjacent with the output shaft 4 of motor 6, thus makes to form complete closed magnetic circuit between axle system, air gap, permanent magnet.
embodiment two:
As depicted in figs. 1 and 2; radial 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 radial 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 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. a radial magnetic circuit multistage multipole slotless deceleration type motor protecter, it is characterized in that: it comprises multiple radial magnetic circuit multipole slotless deceleration type motor protecter (5), each radial 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 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 axis 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 the output shaft (4) of motor (6), 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 radial 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 multiple disc-shapes of multiple radial 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. radial magnetic circuit according to claim 1 multistage multipole slotless deceleration type motor protecter, is characterized in that: the permanent magnet 3(3 of described each disc-shape) axle hole inner circle side face and each circular magnetic stainless steel baffle plate 2(2) axle hole inner circle side face and motor 6(6) output shaft 4(4) between gap be 1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151078.8A CN104702033A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151078.8A CN104702033A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702033A true CN104702033A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510151078.8A Pending CN104702033A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit multistage multiple-pole tooth-groove-free speed reduction type motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104702033A (en) |
Citations (4)
| 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 |
-
2015
- 2015-04-01 CN CN201510151078.8A patent/CN104702033A/en active Pending
Patent Citations (4)
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 张杨: ""发展潜油电机驱动螺杆泵之管见"", 《石油矿场机械》 * |
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| PB01 | Publication | ||
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Application publication date: 20150610 |