CN202014144U - Rotor of self-start low speed permanent-magnet submersible motor - Google Patents
Rotor of self-start low speed permanent-magnet submersible motor Download PDFInfo
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- CN202014144U CN202014144U CN2010206658074U CN201020665807U CN202014144U CN 202014144 U CN202014144 U CN 202014144U CN 2010206658074 U CN2010206658074 U CN 2010206658074U CN 201020665807 U CN201020665807 U CN 201020665807U CN 202014144 U CN202014144 U CN 202014144U
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- magnet steel
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- rotor core
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Abstract
A rotor of a self-start low speed permanent-magnet motor mainly comprises a plurality of rotor sections and alignment bearings, which are fixed at intervals on a motor shaft. The rotor is characterized in that each rotor section comprises magnetic steel embedded structures, magnetic steels, a rotor core, and end rings; the rotor core is fixed on the motor shaft, the magnetic steel embedded structures are arranged on an external arc surface of the rotor core, and the magnetic steels are embedded in magnetic steel embedded grooves between the magnetic steel embedded structures; the magnet poles of the magnetic steels in the same groove are the same and those in the adjacent grooves are opposite, namely the magnet poles are arranged on the external arc surface of the rotor core in such a crossed and circumferential way as N, S, N, S, etc.; and the end rings are fixedly arranged at the two ends of the rotor core.
Description
Technical field
The utility model relates to the rotor structure of permanent magnetism submersible electric machine with oil, particularly a kind of rotor structure of self-starting low-speed permanent-magnet submersible electric machine with oil.
Background technology
The submersible screw pump unit of at present domestic and international field use, mainly contain two types, one type is to adopt conventional rotating speed motor by decelerator reduction of speed drive screw pump, and another kind of type is a decelerator-free in the system, adopts slowspeed machine and the direct drive screw pump of Frequency Converter Control.The prior art of not relevant self-starting low-speed permanent-magnet submersible electric machine with oil as yet by retrieval.
The utility model content
Be existing problem in the permanent magnetism submersible electric machine with oil in the solution prior art, the utility model provides a kind of self-starting low-speed permanent-magnet rotor, can realize the self-starting of permanent magnetism submersible electric machine with oil by using this kind rotor.Described rotor mainly comprises several rotor joint and alignment bearings, and described rotor joint is arranged on the motor shaft with described alignment bearing fixed interval; Described rotor joint comprises: described rotor joint comprises: magnet steel mosaic texture, magnet steel, rotor core and end ring; Described rotor core is fixedly installed on the motor shaft, described magnet steel mosaic texture is arranged on the extrados of described rotor core, described magnet steel is embedded in the magnet steel embedding groove between the described magnet steel mosaic texture, magnet steel magnetic pole in the same groove is identical, magnet steel magnetic pole in the adjacent slot is opposite, intersects by N-S-N-S...... circumferentially to be distributed on the extrados of rotor core; The two ends of described rotor core are set with described end ring.
Further, described end ring and described magnet steel mosaic texture are formed cage-shaped structure.
Further, be provided with magnetic shield between described rotor core intrados and motor shaft, magnetic shield is fixedlyed connected with described rotor core.
Further, described magnet steel cross section is a rectangle or trapezoidal, and its outer face is a cambered surface, and its inner face is plane or cambered surface.
Further, the surface of described rotor is provided with protective layer, and described protective layer is no latitude band or adhesive epoxy resin protective layer.
Further, the material of described magnetic shield is stainless steel or nickel alloy or copper alloy or aluminium alloy.
Further, the material of described rotor core is carbon steel or electrician's iron or ferrite high permeability material.
Further, the material of described magnet steel mosaic texture is a copper.
Further, the material of described end ring is a copper.
Further, described magnet steel embedding groove circumferentially evenly distributes along the extrados of rotor core, and its quantity is 6 pairs, 7 pairs, 8 pairs, 9 pairs, 10 pairs, 11 pairs or 12 pairs.
The advantage of the utility model rotor structure
One, copper magnet steel embedding groove is set outside rotor core, what make that magnet steel can be firm is arranged on the rotor core surface, and in addition, copper embedding groove has formed cage-shaped structure with copper end ring at rotor surface; Realized the self-starting of permanent magnetism submersible electric machine with oil, made motor can be used as the device drives source of variable-frequency stepless speed-regulating or constant-speed operation.
Two, rotor is that some rotor joints combine, be easy to assembling more and firmly be connected, and good manufacturability, running is stable, and noise is little, long service life.
Three, because magnet steel is excitatory, there are not slip and excitatory loss during running, energy-efficient.
Four, in the utility model cage-shaped structure and magnet steel fixed structure are unified into a structure, promptly on rotor, are provided with cage-shaped structure, can not reduce the area of magnet steel again.
Description of drawings
Fig. 1 is the utility model rotor structural representation;
Fig. 2 is the utility model rotor cross-sectional structure schematic diagram.
Embodiment
As shown in fig. 1, the self-starting low-speed permanent-magnet rotor in the utility model mainly comprises several rotor joints 2, and two some alignment bearings 3 between the adjacent rotor joint 2 are set.Quantity as rotor joint 2 is N, and then the quantity of alignment bearing 3 is N-1, and the span of N is 1-60 in the utility model.Rotor joint 2 and alignment bearing 3 all are fixedly installed on the motor shaft 1, and motor shaft 1 uses alloy material to make, and its mechanical strength is very high.Alignment bearing 3 adopts general submersible electric machine with oil alignment bearing structure; Be used for guaranteeing the axial linearity of magnet steel of each rotor joint, and guarantee that the magnet steel polarity of axial straight line correspondence is identical.
As shown in Fig. 1,2, each rotor joint 2 mainly comprises protective layer 4, magnet steel mosaic texture 6, magnet steel 7, iron core 8, magnetic shield 9, end ring 5.
By among Fig. 2 as can be known, it is magnet steel mosaic texture 6 and magnet steel 7 that rotor saves 2 outermost layers.The inside of magnet steel mosaic texture 6 is rotor core 8, usually magnet steel mosaic texture 6 is as a whole with rotor core 8, adopt copper iron composite pipe or composite bar to process, the concrete technology of its processing is, external copper layer with copper iron composite pipe or bar, according to the cross sectional shape of magnet steel 7 along tubing or bar axially mill into groove, remaining copper layer has just formed magnet steel mosaic texture 6 after the groove milling.Groove between the magnet steel mosaic texture 6 is the magnet steel embedding groove.The bottom of magnet steel embedding groove is a rotor core 8, and both sides are magnet steel mosaic texture 6.The magnet steel embedding groove circumferentially evenly distributes along the extrados of rotor core 8, and its quantity can be 6 pairs, 7 pairs, 8 pairs, 9 pairs, 10 pairs, 11 pairs, 12 pairs.In addition, the magnet steel mosaic texture is also used as the mouse cage sliver simultaneously, and forms cage-shaped structure with copper end ring 5.Except adopting above-mentioned processing method outside the resulting magnet steel mosaic texture 6, also can adopt other modes, for example: on rotor core 8 surfaces independent copper bar or cage-shaped structure etc. are set, have the magnet steel mosaic texture 6 of mouse cage sliver effect simultaneously in the formation of rotor core surface.
Embedded magnet steel 7 is a strip in every magnet steel embedding groove, and magnet steel 7 axially is being arranged to peer's property magnet steel bar at the magnet steel embedding groove along rotor core 8; According to the length of magnet steel 7, the magnet steel bar can be made of or many magnet steel are spliced a magnet steel.Magnet steel 7 cross sections are rectangle or trapezoidal, and its outer face is a cambered surface, and its inner face is plane or cambered surface.Magnet steel 7 can directly be bumped into or be bonded in the magnet steel embedding groove 6.Magnet steel 7 after the embedding, its bottom surface and rotor core 8 join, and two sides are magnet steel mosaic textures 6.Magnet steel 7 magnetic poles in the same groove are identical, and magnet steel 7 magnetic poles in the adjacent slot are opposite, intersect by N-S-N-S...... circumferentially to be distributed on the extrados of rotor core 8.
The material of rotor core 8 is carbon steel or electrician's iron or ferrite high permeability material.The axial centre of iron core 8 has and axle 1 axis hole that cooperates, and rotor core 8 can be set directly on the motor shaft 1, also can between rotor core 8 intrados and motor shaft 1 magnetic shield 9 be set; And prevent 2 the rotations of rotor joint with respect to motor shaft 1 by connecting key 10, make motor shaft 1 and rotor save firm connection and transfer torque between 2.The material of magnetic shield 9 is stainless steel or nickel alloy or copper alloy or aluminium alloy, and function is to make leakage flux highly saturated at this place, reduces leakage field.Under the situation that magnetic shield 9 is set, iron core 8 is an one with magnetic shield 9 usually, and magnetic shield 9 can be fixedlyed connected with iron core 8 by welding or combination process.
Two ends at the rotor joint are respectively arranged with end ring 5, and end ring 5 and directly composite molding of iron core 8 also can be fastenedly connected by welding or compression joint technique with iron core 8 by first worked copper end ring 5 again; Rotor saves 2 outer peripheral faces and twines no latitude band or adhesive epoxy resin protective layer 4, and protective layer 4 can be protected the surface of rotor joint 2 not to be corroded and pollute, and also can guarantee combining closely between magnet steel 7 and the rotor core 8 in addition, can not come off in work or transportation.
Claims (10)
1. a self-starting low-speed permanent-magnet submersible electric machine with oil rotor mainly comprises several rotor joint and alignment bearings, and described rotor joint is arranged on the motor shaft with described alignment bearing fixed interval; It is characterized by: described rotor joint comprises: magnet steel mosaic texture, magnet steel, rotor core and end ring; Described rotor core is fixedly installed on the motor shaft, described magnet steel mosaic texture is arranged on the extrados of described rotor core, described magnet steel is embedded in the magnet steel embedding groove between the described magnet steel mosaic texture, magnet steel magnetic pole in the same groove is identical, magnet steel magnetic pole in the adjacent slot is opposite, intersects by N-S-N-S...... circumferentially to be distributed on the extrados of rotor core; The two ends of described rotor core are set with described end ring.
2. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, described end ring and described magnet steel mosaic texture are formed cage-shaped structure.
3. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, be provided with magnetic shield between described rotor core intrados and motor shaft, magnetic shield is fixedlyed connected with described rotor core.
4. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, described magnet steel cross section is a rectangle or trapezoidal, and its outer face is a cambered surface, and its inner face is plane or cambered surface.
5. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, the surface of described rotor is provided with protective layer, and described protective layer is no latitude band or adhesive epoxy resin protective layer.
6. according to the low-speed permanent-magnet of self-starting described in the claim 2 submersible electric machine with oil rotor, it is characterized by, the material of described magnetic shield is stainless steel or nickel alloy or copper alloy or aluminium alloy.
7. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, the material of described rotor core is carbon steel or electrician's iron or ferrite high permeability material.
8. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, the material of described magnet steel mosaic texture is a copper.
9. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, the material of described end ring is a copper.
10. according to the low-speed permanent-magnet of self-starting described in the claim 1 submersible electric machine with oil rotor, it is characterized by, described magnet steel embedding groove circumferentially evenly distributes along the extrados of rotor core, and its quantity is 6 pairs, 7 pairs, 8 pairs, 9 pairs, 10 pairs, 11 pairs or 12 pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206658074U CN202014144U (en) | 2010-12-17 | 2010-12-17 | Rotor of self-start low speed permanent-magnet submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206658074U CN202014144U (en) | 2010-12-17 | 2010-12-17 | Rotor of self-start low speed permanent-magnet submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014144U true CN202014144U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206658074U Expired - Lifetime CN202014144U (en) | 2010-12-17 | 2010-12-17 | Rotor of self-start low speed permanent-magnet submersible motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202014144U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201799A (en) * | 2014-09-09 | 2015-12-30 | 赵锡寰 | Submerged oil pump unit provided with downhole drive conversion device |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| CN108418326A (en) * | 2018-05-10 | 2018-08-17 | 邹跃洲 | Magnet steel is equally spaced locating piece, rotor and motor |
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
| CN109980889A (en) * | 2019-04-04 | 2019-07-05 | 河北国创石油设备有限公司 | A kind of Structure of mover of oil-submersible linear lifting power device |
| CN112332571A (en) * | 2019-11-12 | 2021-02-05 | 沈阳工业大学 | Axial lamination anisotropic synchronous reluctance motor rotor |
-
2010
- 2010-12-17 CN CN2010206658074U patent/CN202014144U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201799A (en) * | 2014-09-09 | 2015-12-30 | 赵锡寰 | Submerged oil pump unit provided with downhole drive conversion device |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| RU2669019C1 (en) * | 2014-09-09 | 2018-10-05 | Ксихуань ЖАО | Stage of submersible screw oil well pump with submersible drive |
| CN108418326A (en) * | 2018-05-10 | 2018-08-17 | 邹跃洲 | Magnet steel is equally spaced locating piece, rotor and motor |
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
| CN108736608B (en) * | 2018-07-04 | 2024-04-12 | 中国电子科技集团公司第二十一研究所 | Rotor structure of Halbach motor and manufacturing method thereof |
| CN109980889A (en) * | 2019-04-04 | 2019-07-05 | 河北国创石油设备有限公司 | A kind of Structure of mover of oil-submersible linear lifting power device |
| CN112332571A (en) * | 2019-11-12 | 2021-02-05 | 沈阳工业大学 | Axial lamination anisotropic synchronous reluctance motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160229 Address after: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee after: Daqing Dafeng Energy Technology Service Co., Ltd. Address before: 163316 Daqing hi tech Zone, Heilongjiang, Jianshe Road Patentee before: Dafeng Oil Field Tech Co., Ltd., Daqing Patentee before: Wanaopu (Beijing) Petroleum Engineering Technology Development Research Institute Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170822 Address after: 163316 No. 28-4 Xinfa street, Daqing Development Zone, Heilongjiang, China Patentee after: Daqing demeitel Technology Co., Ltd. Address before: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee before: Daqing Dafeng Energy Technology Service Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |