CN104158321A - Rotor structure for linear motor - Google Patents
Rotor structure for linear motor Download PDFInfo
- Publication number
- CN104158321A CN104158321A CN201410320786.5A CN201410320786A CN104158321A CN 104158321 A CN104158321 A CN 104158321A CN 201410320786 A CN201410320786 A CN 201410320786A CN 104158321 A CN104158321 A CN 104158321A
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- China
- Prior art keywords
- mover
- rotor
- sliding sleeve
- electric motors
- magnet
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- 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
The invention discloses a rotor structure for a linear motor. The rotor structure comprises a plurality of rotor core shafts connected with one another through core shaft connecting sleeves respectively and a plurality of groups of rotor sliding sleeves and rotor magnetic steel arranged on the rotor core shafts sequentially and alternatively, wherein a nickel-based alloy layer is arranged in the radial direction of the rotor sliding sleeves; non-conducting magnetic material protective layers are arranged on two parallel end faces of each rotor sliding sleeve; each rotor magnetic steel is formed by mixing NdFeB permanent magnet particles and a binding agent; a protection casing is mounted outside the runner magnetic steel to form an integrity. The rotor magnetic steel can avoid direct contact of the permanent-magnet material with the outer environment, so as to prevent oxide etch and demagnetization of the permanent-magnet material; moreover, the nickel-based alloy layer and the non-conducting magnetic material protective layer are arranged on the rotor sliding sleeves respectively, so that the rotor structure has better abrasion resistance and corrosion resistance properties; the problem that a conventional linear motor is relatively large in magnetic flux loss and low in the motor working efficiency is solved.
Description
Technical field
The present invention relates to the linear electric motors that recover the oil, concrete formula is a kind of linear motor rotor structure.
Background technology
Due to the needs of oil extraction in oil field engineering, oil production equipment technology development improves at present, makes the oil production equipment of technology, and linear electric motors have become cost-saving new energy-saving equipments.Electric energy is directly changed into straight-line mechanical energy by linear electric motors, without any need for the transmission device of intermediate conversion mechanism, and then greatly improved oil recovery efficiency.
Traditional oil recovery linear motor rotor directly contacts with crude oil, and sliding sleeve and magnet steel corrode or clash into, and all can affect the life-span of linear electric motors.And traditional linear electric motors flux loss is larger, reduce the efficiency of motor.
Summary of the invention
The object of the present invention is to provide a kind of linear motor rotor structure, can improve life-span and the efficiency of linear electric motors.
For achieving the above object, the present invention is achieved by following technical solution.
A Structure of mover for linear electric motors, comprises some mover mandrels, connect by mandrel adapter sleeve respectively, and on described mover mandrel successively alternative arrangement have mover sliding sleeve and the mover magnet steel of array location; Wherein:
Described mover sliding sleeve be radially provided with nickel base alloy layer, and two parallel end faces that are positioned at described mover sliding sleeve are provided with non-magnet material protective layer;
Described mover magnet steel is mixed by Nd-Fe-B permanent magnet particle and binding agent, and an entirety of protecting sheathing formation is installed in described mover magnet steel outside.
In the present invention, the cladding thickness of related non-magnet material protective layer is 0.5mm.
The nickel base alloy layer of indication of the present invention is wear-resisting, the anti-corrosion layer that adopts self-fluxing nature Co-based alloy powder to form by surfacing.
The shell of indication of the present invention is austenite stainless outer steel shell.
The good effect that the present invention has is, by mover magnet steel and mover sliding sleeve after improving, can improve mover sliding sleeve wear-corrosion resistance, extended the life-span of linear electric motors.Meanwhile, can also effectively separate magnetic induction line, with coordinate magnet steel alternative arrangement time, can keep magnetic field intensity, make motor in the situation of running up, still keep high efficiency service behaviour.In addition, avoid the corrosion of magnet steel by protecting sheathing, and directly contacted with crude oil, magnet steel demagnetization.Meanwhile, avoided again because collision causes line motor permanent magnet loss of excitation, thereby ensured the stability of linear electric motors.
Brief description of the drawings
Fig. 1 is package assembly schematic diagram of the present invention;
Fig. 2 is mover magnet steel schematic diagram of the present invention;
Fig. 3 is mover sliding sleeve schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described.
See the Structure of mover of a kind of linear electric motors shown in Fig. 1 to Fig. 3, comprise some mover mandrels 3, each mover mandrel 3 links into an integrated entity by mandrel adapter sleeve 4 respectively, and on described mover mandrel 3 successively alternative arrangement have mover sliding sleeve 1 and the mover magnet steel 2 of array location.In the present invention, described mover sliding sleeve 1 be radially provided with nickel base alloy layer 5, and two parallel end faces that are positioned at described mover sliding sleeve 1 are provided with non-magnet material protective layer 6.In the present invention, described mover magnet steel 2 is mixed by Nd-Fe-B permanent magnet particle 8 and binding agent 9, and in described mover magnet steel 2 outsides, protecting sheathing 7 is installed and forms an entirety.The protecting sheathing 7 of the present embodiment is austenite stainless outer steel shell.
In above-mentioned, the cladding thickness of related non-magnet material protective layer 6 is 0.5mm.
In above-mentioned, mover sliding sleeve 1 is 45 steel, and its surperficial nickel base alloy layer 6 is wear-resisting, the anti-corrosion layers that adopt self-fluxing nature Co-based alloy powder to form by surfacing.
In the present invention, Nd-Fe-B permanent magnet particle 8 and binding agent 9 are mixed in proportion, make binding agent 9 cover uniformly each Nd-Fe-B permanent magnet particle 8 surfaces.The mixture that Nd-Fe-B permanent magnet particle 8 and adhesive 9 are formed, forms magnet steel 2 after being filled into protecting sheathing 7 inside solidifications of austenitic stainless steel.
In above-mentioned, mover magnet steel 2 and the mover sliding sleeve 1 of the array location of installing on mover mandrel 3, be connected mover magnet steel 2 each other with mover sliding sleeve 1 with fluid sealant; Mover mandrel 3 outer round surface process positioning spline, on the interior aperture of mover sliding sleeve 1, weld tack weld, mover sliding sleeve 1 and mover magnet steel 2 are penetrated on mover mandrel 3 successively by alternating sequence, often penetrate a mover sliding sleeve 1 or mover magnet steel 2, in the keyway of mover mandrel 3, squeeze into anaerobic adhesive.Can effectively prevent the trend that mover magnet steel 2 rotates under the effect of magnetic force, in order to have improved the stability of linear electric motors.
Claims (4)
1. a Structure of mover for linear electric motors, comprises some mover mandrels, connect by mandrel adapter sleeve respectively, and on described mover mandrel successively alternative arrangement have mover sliding sleeve and the mover magnet steel of array location; It is characterized in that, wherein:
Described mover sliding sleeve (1) be radially provided with nickel base alloy layer (5), and two parallel end faces that are positioned at described mover sliding sleeve (1) are provided with non-magnet material protective layer (6);
Described mover magnet steel (2) is mixed by Nd-Fe-B permanent magnet particle (8) and binding agent (9), and an entirety of protecting sheathing (7) formation is installed in described mover magnet steel (2) outside.
2. the Structure of mover of linear electric motors according to claim 1, is characterized in that, the cladding thickness of described non-magnet material protective layer (6) is 0.5mm.
3. the Structure of mover of linear electric motors according to claim 1, is characterized in that, wear-resisting, anti-corrosion layer that wherein nickel base alloy layer (5) forms for surfacing.
4. the Structure of mover of linear electric motors according to claim 1, is characterized in that, protecting sheathing (7) is austenite stainless outer steel shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320786.5A CN104158321A (en) | 2014-07-08 | 2014-07-08 | Rotor structure for linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320786.5A CN104158321A (en) | 2014-07-08 | 2014-07-08 | Rotor structure for linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104158321A true CN104158321A (en) | 2014-11-19 |
Family
ID=51883760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410320786.5A Pending CN104158321A (en) | 2014-07-08 | 2014-07-08 | Rotor structure for linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104158321A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854475A (en) * | 2019-04-04 | 2019-06-07 | 河北国创石油设备有限公司 | A kind of straight line latent oil lifting unit |
| 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 |
| CN115441617A (en) * | 2022-10-11 | 2022-12-06 | 东莞金坤新材料股份有限公司 | High-speed stable neodymium iron boron motor rotor structure and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562385A (en) * | 1983-10-17 | 1985-12-31 | Rabson Thomas A | Periodic reciprocating motor |
| JPH04265658A (en) * | 1991-02-20 | 1992-09-21 | Nippon Cable Syst Inc | Control cable incorporating linear motor |
| CN2817201Y (en) * | 2005-07-26 | 2006-09-13 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Tubular linear motor |
| CN2932819Y (en) * | 2006-06-21 | 2007-08-08 | 王英浩 | Rare earth permanent-magnet linear oil extractor motor |
| CN201038980Y (en) * | 2007-05-18 | 2008-03-19 | 冯春国 | Closed permanent magnetic body structure for oil immersion line motor |
| CN201091059Y (en) * | 2006-12-21 | 2008-07-23 | 马善振 | Permanent magnetism linear motor for well |
| CN201328033Y (en) * | 2008-12-09 | 2009-10-14 | 深圳市大族精密机电有限公司 | Submersible linear motor |
| CN202206201U (en) * | 2011-11-16 | 2012-04-25 | 宁波韵升粘结磁体有限公司 | Rare-earth injection molding magnetic body for high-speed electric machine of centrifugal compressor |
-
2014
- 2014-07-08 CN CN201410320786.5A patent/CN104158321A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562385A (en) * | 1983-10-17 | 1985-12-31 | Rabson Thomas A | Periodic reciprocating motor |
| JPH04265658A (en) * | 1991-02-20 | 1992-09-21 | Nippon Cable Syst Inc | Control cable incorporating linear motor |
| CN2817201Y (en) * | 2005-07-26 | 2006-09-13 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Tubular linear motor |
| CN2932819Y (en) * | 2006-06-21 | 2007-08-08 | 王英浩 | Rare earth permanent-magnet linear oil extractor motor |
| CN201091059Y (en) * | 2006-12-21 | 2008-07-23 | 马善振 | Permanent magnetism linear motor for well |
| CN201038980Y (en) * | 2007-05-18 | 2008-03-19 | 冯春国 | Closed permanent magnetic body structure for oil immersion line motor |
| CN201328033Y (en) * | 2008-12-09 | 2009-10-14 | 深圳市大族精密机电有限公司 | Submersible linear motor |
| CN202206201U (en) * | 2011-11-16 | 2012-04-25 | 宁波韵升粘结磁体有限公司 | Rare-earth injection molding magnetic body for high-speed electric machine of centrifugal compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854475A (en) * | 2019-04-04 | 2019-06-07 | 河北国创石油设备有限公司 | A kind of straight line latent oil lifting unit |
| 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 |
| CN115441617A (en) * | 2022-10-11 | 2022-12-06 | 东莞金坤新材料股份有限公司 | High-speed stable neodymium iron boron motor rotor structure and manufacturing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |