CN207426834U - A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor - Google Patents
A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor Download PDFInfo
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- CN207426834U CN207426834U CN201721408981.9U CN201721408981U CN207426834U CN 207426834 U CN207426834 U CN 207426834U CN 201721408981 U CN201721408981 U CN 201721408981U CN 207426834 U CN207426834 U CN 207426834U
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- filling block
- mandrel
- magnetic
- interpolar
- interpolar filling
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Abstract
The utility model discloses a kind of interpolar filling block arrangements of durface mounted permanent magnet rotor; including mandrel, magnetic shoe and protective case; several blocks of magnetic shoes are distributed on the outer circle wall of mandrel; and it is formed between two adjacent magnetic shoes every magnetic gap; protective case is sheathed on mandrel; and it is interference fitted between protective case and magnetic shoe; further include interpolar filling block; the axial direction of the mandrel is equipped with limiting groove; the limiting groove is placed in every in magnetic gap; interpolar filling block is placed in every in magnetic gap, and the bottom of interpolar filling block is plugged in limiting groove.It no longer needs to carry out mandrel accurately drilling and tapping, only need to mill out groove on surface；The stress concentration on sheath is effectively reduced, extends the service life of protective case.
Description
Technical field：
The utility model is related to a kind of interpolar filling block arrangements of durface mounted permanent magnet rotor.
Background technology：
It generally requires to set in durface mounted permanent magnet rotor, between different magnetic poles every magnetic measure, conventional means has：1) interpolar is reserved
Any filling is not done in gap；2) non-magnet material is used to fill pole clearance as filler.In order to prevent magnetic shoe and mandrel it
Between produce relative rotation, when on-line velocity is relatively low, it and mandrel are fixed frequently with magnetic shoe adhesive special；When linear velocity is higher
When, often interpolar filling block is connected with mandrel using screw, then protective case is assembled in periphery with larger interference volume again, it is ensured that magnetic
It watt will not produce relative rotation with mandrel, while protect magnetic shoe and filling block are unlikely under centrifugal force to fly out.
Under the occasion of high rotating speed and high temperature, since screw is to the constraint of interpolar filling block and centrifugal force, thermal expansion
Collective effect, the radial offset of magnetic shoe and interpolar filling block outer surface is different, and the difference of offset can protect
It puts on and generates non-uniform stress, non-uniform peak stress is this it is possible that be close to or higher than the material allowable value of protective case
Situation can reduce the service life of protective case, reduce the utilization rate of material.Interpolar filling is connected soon using screw with mandrel, although can be with
It effectively prevents the relative rotation of magnetic shoe and mandrel, but adds man-hour requirement that the work to drill with tapping is set in mandrel and filling block
Sequence, power when comparing consuming.
Utility model content：
The utility model is to provide a kind of durface mounted permanent magnet rotor to solve the above-mentioned problems of the prior art
Interpolar filling block arrangement.
There is technical solution used by the utility model：A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor,
Including mandrel, magnetic shoe and protective case, several blocks of magnetic shoes are distributed on the outer circle wall of mandrel, and are formed between two adjacent magnetic shoes
Have every magnetic gap, protective case is sheathed on mandrel, and is interference fitted between protective case and magnetic shoe, further includes interpolar filling block, institute
The axial direction for stating mandrel is equipped with limiting groove, which is placed in every in magnetic gap, and interpolar filling block is placed between magnetic
In gap, and the bottom of interpolar filling block is plugged in limiting groove.
Further, the circumferential wall of the mandrel is equipped with mounting groove, and magnetic shoe and interpolar filling block are installed in mounting groove.
Further, the depth of the limiting groove is 2~4mm.
The utility model has the advantages that：
1) no longer need to carry out mandrel accurately drilling and tapping, only need to mill out groove on surface；
2) stress concentration on sheath is effectively reduced, extends the service life of protective case.
Description of the drawings：
Fig. 1 is the sectional view structure chart of the utility model.
Fig. 2 is the utility model front view.
Specific embodiment：
The utility model will be further described below with reference to the accompanying drawings.
As depicted in figs. 1 and 2, the utility model discloses a kind of interpolar filling block arrangement of durface mounted permanent magnet rotor,
Including mandrel 1, magnetic shoe 2, protective case 3 and interpolar filling block 5, several blocks of magnetic shoes 2 are distributed on the outer circle wall of mandrel 1, and phase
It is formed between two adjacent magnetic shoes 2 every magnetic gap, protective case 3 is sheathed on mandrel 1, and interference is matched somebody with somebody between protective case 3 and magnetic shoe 2
It closes.
Mounting groove 11 is equipped in the circumferential wall of mandrel 1, magnetic shoe 2 and interpolar filling block 5 are installed in mounting groove 11.Mandrel
Mounting groove 11 on 1 can play the role of to 2 axial limiting of magnetic shoe, the core positioned at 2 both ends of magnetic shoe while magnetic shoe 2
Axis can be done thick (part A in Fig. 1), it is ensured that the rigidity of entire mandrel 1.
Limiting groove 10 is equipped on the axial direction of mandrel 1 and in mounting groove 11, limiting groove 10 is placed in every magnetic
In gap, the depth of limiting groove 10 is 2~4mm.Interpolar filling block 5 is placed in every in magnetic gap, and the bottom of interpolar filling block 5
It is plugged in limiting groove 10.
By processing limiting groove 10 on mandrel 1, interpolar filling block 5 is placed in limiting groove 10, interpolar filling
Block 5 can effectively prevent the relative rotation of magnetic shoe 2 and mandrel 1.Interpolar filling block 5 is due to the constraint of no screw, so pole
Between filling block 5 be to possess the similar displacement capacity of same magnetic shoe 2 on the radial, when rotor runs at high speed, due to centrifugal force
Influence, interpolar filling block 5 and magnetic shoe 2 will outwards offsets simultaneously.In this case, since interpolar filling block and magnetic shoe deviate
Amount is close, therefore can weaken small interpolar filling block and the stress concentration phenomenon near magnetic shoe interface on protective case 3, makes the region
Stress distribution it is more uniform.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, several improvement can also be made on the premise of the utility model principle is not departed from, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (3)
1. a kind of interpolar filling block arrangement of durface mounted permanent magnet rotor, including mandrel (1), magnetic shoe (2) and protective case (3),
Several pieces of magnetic shoes (2) are distributed on the outer circle wall of mandrel (1), and are formed between adjacent two magnetic shoes (2) every magnetic gap, are protected
Sheath (3) is sheathed on mandrel (1), and is interference fitted between protective case (3) and magnetic shoe (2), it is characterised in that：Further include interpolar
Filling block (5), the axial direction of the mandrel (1) are equipped with limiting groove (10), which is placed in every magnetic gap
Interior, interpolar filling block (5) is placed in every in magnetic gap, and the bottom of interpolar filling block (5) is plugged in limiting groove (10).
2. the interpolar filling block arrangement of durface mounted permanent magnet rotor as described in claim 1, it is characterised in that：The mandrel
(1) circumferential wall is equipped with mounting groove (11), and magnetic shoe (2) and interpolar filling block (5) are installed in mounting groove (11).
3. the interpolar filling block arrangement of durface mounted permanent magnet rotor as described in claim 1, it is characterised in that：The /V
The depth of groove (10) is 2~4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408981.9U CN207426834U (en) | 2017-10-30 | 2017-10-30 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408981.9U CN207426834U (en) | 2017-10-30 | 2017-10-30 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426834U true CN207426834U (en) | 2018-05-29 |
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ID=62309264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721408981.9U Active CN207426834U (en) | 2017-10-30 | 2017-10-30 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579615A (en) * | 2017-10-30 | 2018-01-12 | 南京磁谷科技有限公司 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
-
2017
- 2017-10-30 CN CN201721408981.9U patent/CN207426834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579615A (en) * | 2017-10-30 | 2018-01-12 | 南京磁谷科技有限公司 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
|
| CP03 | Change of name, title or address |