CN104734397A - Radial magnetic circuit monopole unequal tooth width decelerating type motor protector - Google Patents
Radial magnetic circuit monopole unequal tooth width decelerating type motor protector Download PDFInfo
- Publication number
- CN104734397A CN104734397A CN201510150918.9A CN201510150918A CN104734397A CN 104734397 A CN104734397 A CN 104734397A CN 201510150918 A CN201510150918 A CN 201510150918A CN 104734397 A CN104734397 A CN 104734397A
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- China
- Prior art keywords
- stainless steel
- magnetic stainless
- motor
- facewidth
- permanent magnet
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a radial magnetic circuit monopole unequal tooth width decelerating type motor protector, and belongs to the technical field of motor protection equipment. The radial magnetic circuit monopole unequal tooth width decelerating type motor protector aims at solving the problems that a motor protector does not exist at present, therefore, the usage performance of a motor is reduced, the service life of the motor is shortened, and the maintenance cost of the motor is increased. A disc-shaped permanent magnet is fixedly installed in a non-magnetism stainless steel sleeve, two circular magnetic conductive stainless steel baffles are fixed at the two ends in the non-magnetism stainless steel sleeve, a magnetic conductive stainless steel sleeve is fixed in an installing hole in the middle of the disc-shaped permanent magnet, the magnetic conductive stainless steel sleeve and shaft holes of the circular magnetic conductive stainless steel baffles are coaxially arranged, and multiple teeth with unequal tooth width are machined on the inner circumference surface of the magnetic conductive stainless steel sleeve in the radial direction. When the radial magnetic circuit monopole unequal tooth width decelerating type motor protector is used, an output shaft of the motor penetrates out the magnetic conductive stainless steel sleeve and the shaft holes of the circular magnetic conductive stainless steel baffles, and gaps are formed between the tooth top circumference surfaces of the teeth with unequal tooth width of the magnetic conductive stainless steel sleeve and the output shaft of the motor and between the inner circumference surfaces of the shaft holes of the circular magnetic conductive stainless steel baffles and the output shaft of the motor. The radial magnetic circuit monopole unequal tooth width decelerating type motor protector is used in a motor protection occasion.
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 one pole 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 one pole facewidth deceleration type motor protecter such as not, the described radial magnetic circuit one pole facewidth deceleration type motor protecter such as not comprises non-magnetic stainless steel sleeve, permanent magnet, magnetic stainless steel cover and two circular magnetic stainless steel baffle plates;
Described permanent magnet is disc-shape, the permanent magnet of disc-shape is installed in non-magnetic stainless steel sleeve, the magnetic circuit of the permanent magnet of disc-shape is disposed radially, described two circular magnetic stainless steel baffle plates are fixed on the two ends in non-magnetic stainless steel sleeve, and circular magnetic stainless steel baffle plate reclines mutually with two end faces of the permanent magnet of disc-shape, the middle part of two circular magnetic stainless steel baffle plates is respectively equipped with axis hole, the middle part of the permanent magnet of disc-shape is provided with installing hole, described installing hole internal fixtion has magnetic stainless steel cover, described magnetic stainless steel cover is coaxially arranged with the axis hole of two circular magnetic stainless steel baffle plates, the inner peripheral surface of magnetic stainless steel cover is radially processed with the tooth of several facewidth such as not, during use, the output shaft of described motor passes the axis hole of magnetic stainless steel cover and two circular magnetic stainless steel baffle plates, and the outside circle side face of tooth of several facewidth such as not of magnetic stainless steel cover and be equipped with gap between the axle hole inner circle side face of two circular magnetic stainless steel baffle plates and the output shaft of motor.
The present invention relative to the beneficial effect of prior art is:
1, the facewidth deceleration type motor protecter that adopts radial magnetic circuit one pole of the present invention not etc., 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, all materials also can be easier to obtain, and increase less for whole device cost, but the effect highly significant of electric motor protecting.Practice shows, after being provided with protector of the present invention, effectively can improve motor useful life more than 16%, reduce motor operation expense more than 10%, can use under the particular surroundings such as oil, deep-sea.
the inner peripheral surface of 2, magnetic stainless steel cover is radially processed with the tooth of several facewidth such as not, object is the area in order to increase adsorbing contaminant, and make the amount of adsorbing contaminant larger, adsorption effect is better.
Accompanying drawing explanation
Fig. 1 is the radial magnetic circuit one pole of the present invention main cutaway view of facewidth deceleration type motor protecter such as not;
Fig. 2 be by radial magnetic circuit one pole of the present invention 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:
Tooth 4-1, output shaft 5, decelerator 6, motor protecter 7, the motor 8 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.
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 one pole facewidth deceleration type motor protecter such as not, the described radial magnetic circuit one pole facewidth deceleration type motor protecter such as not comprises non-magnetic stainless steel sleeve 1, permanent magnet 3, magnetic stainless steel cover 4 and two circular magnetic stainless steel baffle plates 2;
Described permanent magnet 3 is disc-shape, the permanent magnet 3 of disc-shape is installed in non-magnetic stainless steel sleeve 1, the magnetic circuit of the permanent magnet 3 of disc-shape is disposed radially, described two circular magnetic stainless steel baffle plates 2 are fixed on the two ends in non-magnetic stainless steel sleeve 1, and circular magnetic stainless steel baffle plate 2 reclines mutually with two end faces of the permanent magnet 3 of disc-shape, the middle part of two circular magnetic stainless steel baffle plates 2 is respectively equipped with axis hole, the middle part of the permanent magnet 3 of disc-shape is provided with installing hole, described installing hole internal fixtion has magnetic stainless steel to overlap 4, described magnetic stainless steel cover 4 and the axis hole of two circular magnetic stainless steel baffle plates 2 are coaxially arranged, the inner peripheral surface of magnetic stainless steel cover 4 is radially processed with the tooth 4-1 of several facewidth such as not, during use, the output shaft 5 of described motor 8 passes the axis hole of magnetic stainless steel cover 4 and two circular magnetic stainless steel baffle plates 2, and the outside circle side face of tooth 4-1 of several facewidth such as not of magnetic stainless steel cover 4 and be equipped with gap between the axle hole inner circle side face of two circular magnetic stainless steel baffle plates 2 and the output shaft 5 of motor 8.
The N pole of the permanent magnet 3 of described disc-shape is disposed adjacent with non-magnetic stainless steel sleeve 1, and S pole and the magnetic stainless steel of the permanent magnet 3 of disc-shape are overlapped 4 and be disposed adjacent, thus makes to form complete closed magnetic circuit between axle system, air gap, permanent magnet.
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.
Embodiment two: as depicted in figs. 1 and 2; radial magnetic circuit one pole described in embodiment one 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 magnetic stainless steel cover 4 and the gap between the axle hole inner circle side face of two circular magnetic stainless steel baffle plates 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 facewidth deceleration type motor protecter such as or not the radial magnetic circuit one pole described in embodiment one or two, the tooth depth of the tooth 4-1 of several facewidth such as or not described magnetic stainless steel cover 4 is all equal.Object is convenient processing.
Operation principle: as shown in Fig. 1 ~ Fig. 3, coaxially installs motor protecter 7 of the present invention with motor 8 and decelerator 6, and is 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 circular magnetic stainless steel baffle plate 2 and 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 two circular magnetic stainless steel baffle plates 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 one pole facewidth deceleration type motor protecter such as not, is characterized in that: the described radial magnetic circuit one pole facewidth deceleration type motor protecter such as not comprises non-magnetic stainless steel sleeve (1), permanent magnet (3), magnetic stainless steel cover (4) and two circular magnetic stainless steel baffle plates (2);
Described permanent magnet (3) is disc-shape, the permanent magnet (3) of disc-shape is installed in non-magnetic stainless steel sleeve (1), the magnetic circuit of the permanent magnet (3) of disc-shape is disposed radially, described two circular magnetic stainless steel baffle plates (2) are fixed on the two ends in non-magnetic stainless steel sleeve (1), and circular magnetic stainless steel baffle plate (2) reclines mutually with two end faces of the permanent magnet (3) of disc-shape, the middle part of two circular magnetic stainless steel baffle plates (2) is respectively equipped with axis hole, the middle part of the permanent magnet (3) of disc-shape is provided with installing hole, described installing hole internal fixtion has magnetic stainless steel cover (4), described magnetic stainless steel cover (4) is coaxially arranged with the axis hole of two circular magnetic stainless steel baffle plates (2), the inner peripheral surface of magnetic stainless steel cover (4) is radially processed with the tooth (4-1) of several facewidth such as not, during use, the output shaft (5) of described motor (8) passes the axis hole of magnetic stainless steel cover (4) and two circular magnetic stainless steel baffle plates (2), and the outside circle side face of tooth (4-1) of several facewidth such as not of magnetic stainless steel cover (4) and be equipped with gap between the axle hole inner circle side face of two circular magnetic stainless steel baffle plates (2) and the output shaft (5) of motor (8).
2. the radial magnetic circuit one pole according to claim 1 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 magnetic stainless steel cover (4) and the gap between the axle hole inner circle side face of two circular magnetic stainless steel baffle plates (2) and the output shaft (5) of motor (8) are 1 ~ 2mm.
3. the radial magnetic circuit one pole according to claim 1 and 2 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 magnetic stainless steel cover (4) is all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150918.9A CN104734397A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit monopole unequal tooth width decelerating type motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150918.9A CN104734397A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit monopole unequal tooth width decelerating type motor protector |
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| Publication Number | Publication Date |
|---|---|
| CN104734397A true CN104734397A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510150918.9A Pending CN104734397A (en) | 2015-04-01 | 2015-04-01 | Radial magnetic circuit monopole unequal tooth width decelerating type motor protector |
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| CN (1) | CN104734397A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097040U (en) * | 1991-06-30 | 1992-02-26 | 赵承树 | Magnetic separator |
| CN201112026Y (en) * | 2007-07-20 | 2008-09-10 | 上海金发科技发展有限公司 | Outer casing of magnetic stick |
| CN201423216Y (en) * | 2009-03-26 | 2010-03-17 | 窦淑敏 | Lubricant oil filter with magnetizer |
| CN102755779A (en) * | 2012-06-21 | 2012-10-31 | 乐清市东风煤矿设备有限公司 | High-precision magnetic combining filter |
-
2015
- 2015-04-01 CN CN201510150918.9A patent/CN104734397A/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 |
| CN201112026Y (en) * | 2007-07-20 | 2008-09-10 | 上海金发科技发展有限公司 | Outer casing of magnetic stick |
| CN201423216Y (en) * | 2009-03-26 | 2010-03-17 | 窦淑敏 | Lubricant oil filter with magnetizer |
| CN102755779A (en) * | 2012-06-21 | 2012-10-31 | 乐清市东风煤矿设备有限公司 | High-precision magnetic combining filter |
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Application publication date: 20150624 |
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