CN204068442U - A kind of for the sintered NdFeB magnetic shoe in magneto - Google Patents
A kind of for the sintered NdFeB magnetic shoe in magneto Download PDFInfo
- Publication number
- CN204068442U CN204068442U CN201420369378.4U CN201420369378U CN204068442U CN 204068442 U CN204068442 U CN 204068442U CN 201420369378 U CN201420369378 U CN 201420369378U CN 204068442 U CN204068442 U CN 204068442U
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- CN
- China
- Prior art keywords
- curved base
- magnetic shoe
- extrados
- intrados
- magneto
- Prior art date
- 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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Abstract
A kind of for the sintered NdFeB magnetic shoe in magneto, comprise curved base, this curved base comprises the entity surrounded by intrados, extrados, upper surface, lower surface, left surface and right flank, described curved base is that sintered neodymium iron boron material is made, described extrados and intrados concentric, described left surface and right flank intersect on the axle center of described intrados, be connected by taper seat transition between described upper surface with described extrados, the center of described lower surface is arranged with fixing blind hole.The beneficial effects of the utility model are: adopt said structure, not only simple and compact for structure, easy for installation, fixed, and damage not easily appears in magnetic shoe, improves the stability of machine operation; And magnetic shoe adopts sintered neodymium iron boron material to make, thus have high magnetic property, have good machining property, magnetic property is stablized.
Description
Technical field
The utility model relates to a kind of for the sintered NdFeB magnetic shoe in magneto.
Background technology
Magnetic shoe is the one in permanent magnet, mainly be used in magneto, to produce magnetic potential source by magnet exciting coil different from electromagnetic motor, and the magnetic shoe in magneto is as excitation source, there is provided the stator field of armature reaction, it can induce electromotive force in the motor winding rotated.Magnetic shoe replaces electric excitation to have lot of advantages, can make that electric machine structure is simple, easy to maintenance, lightweight, volume is little, use is reliable, copper consumption is few, copper loss is low, energy consumption is little.
At present, common magnetic shoe complex structure, assembling are poor.After magnetic shoe machine-shaping, be not easily fixed, if fix loosely, easily there is damage in magnetic shoe, affects the stability of machine operation.
Summary of the invention
There is above-mentioned deficiency to overcome in prior art, the utility model provide a kind of job stability high, be beneficial to magnetic shoe dismounting and change for the sintered NdFeB magnetic shoe in magneto.
The technical scheme in the invention for solving the technical problem is: a kind of for the sintered NdFeB magnetic shoe in magneto, comprise curved base, this curved base comprises the entity surrounded by intrados, extrados, upper surface, lower surface, left surface and right flank, described curved base is that sintered neodymium iron boron material is made, described extrados and intrados concentric, described left surface and right flank intersect on the axle center of described intrados, be connected by taper seat transition between described upper surface with described extrados, the center of described lower surface is arranged with fixing blind hole.
Further, described curved base is outside equipped with one deck nickel coating, the aerial stability of nickel coating is very high, because metallic nickel has very strong passivation ability, the very thin passivating film of one deck is generated rapidly in surface energy, the corrosion of air, alkali and some acid can be resisted, to the curved base be made up of sintered NdFeB, there is protective effect, thus make the utility model can be used in adverse circumstances; Meanwhile, the hardness ratio of nickel coating is higher, can improve resistance to wear of the present utility model.
Further, the institute of described curved base is 45 degree across angle, and 8 curved bases are combined into a cylinder, like this, while being convenient to install, also can improve the durability of rotor.
The utility model when mounted, by the curved base uniform ring of multiple formed objects around outside machine shaft, the pivoted housing of the side of machine shaft is against on the upper surface of curved base, and pivoted housing is formed with the taper sheath be sleeved on outside the taper seat of curved base, inwall and the taper seat of taper sheath match, outer wall and the extrados of taper sheath flush, air gap distance between the medial surface that effectively can reduce extrados and motor stator, improve motor performance, the baffle plate of the opposite side of machine shaft is against on the lower surface of curved base, and the end face of baffle plate is provided with multiple one_to_one corresponding and stretches into fixed leg in the fixing blind hole of each curved base, under the matching of pivoted housing, curved base is firmly fixed on machine shaft after fixed leg stretches into fixing blind hole.Because curved base is that sintered neodymium iron boron material is made, especially adopt performance to be greater than N48 and magnetic energy product to add the sintered Nd-Fe-B magnetic material that HCJ sum is greater than 60 and make, have high magnetic property, its maximum magnetic energy product exceeds more than 10 times, ferrite, and machining property is good, thus be convenient to processing.
The beneficial effects of the utility model are: adopt said structure, not only simple and compact for structure, easy for installation, fixed, and damage not easily appears in magnetic shoe, improves the stability of machine operation; And magnetic shoe adopts sintered neodymium iron boron material to make, thus have high magnetic property, have good machining property, magnetic property is stablized.
Accompanying drawing explanation
Fig. 1 is stereogram of the present utility model.
Fig. 2 is cutaway view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, Fig. 2, a kind of for the sintered NdFeB magnetic shoe in magneto, comprise curved base, this curved base comprises the entity surrounded by intrados 1, extrados 2, upper surface 3, lower surface 4, left surface 5 and right flank 6, described curved base is that sintered neodymium iron boron material is made, described extrados 2 and intrados 1 concentric, described left surface 5 and right flank 6 intersect on the axle center of described intrados 1, be connected by taper seat 7 transition between described upper surface 3 with described extrados 2, the center of described lower surface 4 is arranged with fixing blind hole 8.
Described curved base is outside equipped with one deck nickel coating 9, the aerial stability of nickel coating 9 is very high, because metallic nickel has very strong passivation ability, the very thin passivating film of one deck is generated rapidly in surface energy, the corrosion of air, alkali and some acid can be resisted, to the curved base be made up of sintered NdFeB, there is protective effect, thus make the utility model can be used in adverse circumstances; Meanwhile, the hardness ratio of nickel coating is higher, can improve resistance to wear of the present utility model.
The institute of described curved base is 45 degree across angle, and 8 curved bases are combined into a cylinder, like this, while being convenient to install, also can improve the durability of rotor.
The utility model when mounted, by the curved base uniform ring of multiple formed objects around outside machine shaft, the pivoted housing of the side of machine shaft is against on the upper surface 3 of curved base, and pivoted housing is formed with the taper sheath be sleeved on outside the taper seat 7 of curved base, inwall and the taper seat 7 of taper sheath match, outer wall and the extrados 2 of taper sheath flush, air gap distance between the medial surface that effectively can reduce extrados 2 and motor stator, improve motor performance, the baffle plate of the opposite side of machine shaft is against on the lower surface 4 of curved base, and the end face of baffle plate is provided with multiple one_to_one corresponding and stretches into fixed leg in the fixing blind hole 8 of each curved base, under the matching of pivoted housing, curved base is firmly fixed on machine shaft after fixed leg stretches into fixing blind hole 8.Because curved base is that sintered neodymium iron boron material is made, especially adopt performance to be greater than N48 and magnetic energy product to add the sintered Nd-Fe-B magnetic material that HCJ sum is greater than 60 and make, have high magnetic property, its maximum magnetic energy product exceeds more than 10 times, ferrite, and machining property is good, thus be convenient to processing.
Claims (3)
1. one kind for the sintered NdFeB magnetic shoe in magneto, comprise curved base, this curved base comprises the entity surrounded by intrados, extrados, upper surface, lower surface, left surface and right flank, it is characterized in that: described curved base is that sintered neodymium iron boron material is made, described extrados and intrados concentric, described left surface and right flank intersect on the axle center of described intrados, be connected by taper seat transition between described upper surface with described extrados, the center of described lower surface is arranged with fixing blind hole.
2. according to according to claim 1 for the sintered NdFeB magnetic shoe in magneto, it is characterized in that: described curved base is outside equipped with one deck nickel coating.
3. according to described in claim 1 or 2 for the sintered NdFeB magnetic shoe in magneto, it is characterized in that: the institute of described curved base is 45 degree across angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369378.4U CN204068442U (en) | 2014-07-07 | 2014-07-07 | A kind of for the sintered NdFeB magnetic shoe in magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369378.4U CN204068442U (en) | 2014-07-07 | 2014-07-07 | A kind of for the sintered NdFeB magnetic shoe in magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068442U true CN204068442U (en) | 2014-12-31 |
Family
ID=52209887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420369378.4U Expired - Fee Related CN204068442U (en) | 2014-07-07 | 2014-07-07 | A kind of for the sintered NdFeB magnetic shoe in magneto |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160270A (en) * | 2016-07-25 | 2016-11-23 | 惠州市大亚湾永昶电子工业有限公司 | A kind of VCM motor Magnet of improvement |
-
2014
- 2014-07-07 CN CN201420369378.4U patent/CN204068442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160270A (en) * | 2016-07-25 | 2016-11-23 | 惠州市大亚湾永昶电子工业有限公司 | A kind of VCM motor Magnet of improvement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20200707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |