CN109713810A - A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor - Google Patents
A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor Download PDFInfo
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- CN109713810A CN109713810A CN201910108745.2A CN201910108745A CN109713810A CN 109713810 A CN109713810 A CN 109713810A CN 201910108745 A CN201910108745 A CN 201910108745A CN 109713810 A CN109713810 A CN 109713810A
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Abstract
A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, flat permanent magnetic torque motor includes pedestal (1), armature (2), rotor (3) and hollow shaft (4)；Armature (2), rotor (3) and hollow shaft (4) setting are in pedestal (1), hollow shaft (4) is arranged at pedestal (1) center, rotor (3) is arranged on hollow shaft (4) and is fixed as one with hollow shaft (4), armature (2) is arranged between rotor (3) and pedestal (1), it is interference fitted between armature (2) and pedestal (1), the specific advantage of the present invention is as follows: motor is flat structure, can be installed in the small space between balance weight and gear reduction box.Two pieces of permanent magnets constitute a magnetic pole, and shape of a saddle magnetic field is generated in motor gas-gap, can effectively inhibit the magnetic circuit saturation and cogging torque of stator core.Multiple one phase windings of tooth continuous coiling, electrical motor wire embedding simple process, contact is few, increases electrical security reliability.
Description
Technical field: the present invention relates to crude oil lifting equipments, more particularly, to a kind of for the partly straight of beam pumping unit
Connect driving flat permanent magnet torque motor.
Background technique: beam pumping unit is main crude oil lifting installation.Traditional beam pumping unit is using induction
Motor adds the double reduction mechanism of belt pulley and gear reduction box driving sucker rod to move back and forth lifting crude oil, and system effectiveness is low,
The abrasion of especially belt is big, not only increases human cost, and affect yield.To solve the above-mentioned problems, existing skill
Art was once disclosed a kind of high torque permanent magnet low rotating speed direct-drive oil extractor motor, had fully phased out belt pulley and The gear deceleration
Case, but motor volume is big, cost is high, and existing tradition pumping unit is difficult to directly adopt, it is necessary to redesign pumping unit and match therewith
Set, limits popularization.As can designing a kind of high efficiency driving motor cancellation belt pulley, moreover it is possible to existing pumping unit perfect
Match, must can improve system effectiveness and improves the reliability of pumping unit.
Summary of the invention:
Goal of the invention: the present invention provides a kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, and the purpose is to not change
The structure for having pumping unit is cashed, replaces original induction machine and belt pulley with flat permanent magnetic torque motor, realizes permanent magnetic torque
Motor-driven gear reduction gearbox, flat permanent magnetic torque motor are installed in the small space between balance weight and gear reduction box, with
It solves the problems of previous.
Technical solution: the present invention is achieved by the following technical solutions:
A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, it is characterised in that: flat permanent magnetic torque motor includes
Pedestal (1), armature (2), rotor (3) and hollow shaft (4)；Armature (2), rotor (3) and hollow shaft (4) setting are interior in pedestal (1),
Hollow shaft (4) setting is at pedestal (1) center, and rotor (3) is arranged on hollow shaft (4) and is fixed as one with hollow shaft (4), electricity
Pivot (2) is arranged between rotor (3) and pedestal (1), is interference fitted between armature (2) and pedestal (1)；
The armature (2) includes stator core (5) and winding (9), and stator core (5) includes stator core yoke (6), stator
Core tooth (7) and stator dovetail groove (8)；Stator core tooth (7) setting is on the inside of stator core yoke (6), two adjacent stators
Stator dovetail groove (8) are formed between core tooth (7), winding (9) is wrapped on stator core tooth (7)；
Rotor (3) includes permanent magnet (10) and rotor rack (11)；Rotor (3) be arranged in stator core (5) by stator
In the space that core tooth (7) is crowded around, the outer circular edge in rotor rack (11) is arranged in permanent magnet (10).
The diameter of flat permanent magnetic torque motor/axial length ratio is greater than the 3.5 (diameters and axis of pedestal (1) i.e. shown in FIG. 1
To than)；The relationship of the quantity P of the quantity Q and permanent magnet (10) of stator dovetail groove (8) is 2Q/3P=b/c, and b/c is necessary for really dividing
Number, and b is 3 or 5, the greatest common divisor GCD (Q, P) of Q and P take 4~9.
Rotor (3) further includes axial pole pressing plate (12), and axial pole pressing plate (12) is withheld in rotor rack (11) outer circumferential edge
On the permanent magnet (10) of edge.
The height of stator core yoke (6) is hj, stator core tooth (7) width be bt, the upper and lower bottom of stator dovetail groove (8)
Width is respectively bs1And bs2, hj、bt、bs1、bs2Between relationship are as follows: hj≥bt/ 2, if bt< 20mm, then hjTake 10mm, bt=(bs1+
bs2)/2。
4P permanent magnet resettlement groove (14) is offered on rotor rack (11), P is number of pole-pairs；It is first when permanent magnet (10) are installed
The permanent magnet (10) that magnetizing direction is N is first placed in two adjacent permanent magnet resettlement grooves (14), they constitute a magnetic
Pole N (15) is then pressed and is put in other two adjacent (continuous) permanent magnet resettlement groove (14) clockwise or counterclockwise
The permanent magnet (10) that magnetizing direction is S is set, they constitute another magnetic pole S (16), are so staggered, until installing institute
There is permanent magnet；Magnetic pole N (15) or magnetic pole S (16) produce shape of a saddle magnetic field in motor gas-gap, can effectively inhibit stator iron
The magnetic circuit of the heart (5) is saturated.
The axial sides of permanent magnet (10) offer permanent magnet seam allowance (19), height hzFor 2mm, width bzFor 2-3mm.
Axial pole pressing plate (12) includes main pressing plate (12-1) and pressing plate tongue (17), and pressing plate tongue (17) is arranged in main pressing plate
The edge (12-1)；Pressing plate tongue (17) height hy=hz, pressing plate tongue (17) width by=bz；Pole end-plate (12) be a full circle or
Person is finally spliced into full circle by multiple portions；Axial pole pressing plate (12) is non-magnet material；Using axial pole pressing plate (12)
Afterwards, simplify rotor machining and assembly technology, improve production efficiency.In use, main pressing plate (12-1) snaps over rotor rack (11)
Axial end face (11-1) on, pressing plate tongue (17) snaps in permanent magnet seam allowance (19).
After installing permanent magnet (10) on rotor rack (11), compressed forever with the pressing plate tongue (17) of axial pole pressing plate (12)
Screw, is then screwed into pressing plate mounting hole (18) and pole end-plate fixation hole (13) by the permanent magnet seam allowance (19) on magnet (10)
In.
The A phase winding of winding (9) coiling (using first tooth as starting) on b adjacent stator core tooth (7), if the
One stator core tooth forward direction coiling, then second stator core tooth is oppositely wound, so alternately positive and negative coiling, until around complete b
A stator core tooth is then separated by 2b stator core tooth, fixed at 3b+2 in the 3b+1 stator core tooth forward direction coiling
Sub- core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group；
According to same rule coiling B phase winding, remaining tooth coiling C phase winding on the b+1 tooth.
Then coiling B phase winding, using b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if b+
1 stator core tooth forward direction coiling, then the b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until around complete b
A stator core tooth is then separated by 2b stator core tooth, in the 4b+1 stator core tooth forward direction coiling, in 4b+2 stator
Core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group；
Then coiling C phase winding, using 2b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if the
2b+1 stator core tooth forward direction coiling, then the 2b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until around
Complete b stator core tooth, is then separated by 2b stator core tooth, in the 5b+1 stator core tooth forward direction coiling, at 5b+2
Stator core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group.
Advantageous effect:
A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, flat permanent magnetic torque motor include pedestal, armature, turn
Son and hollow shaft；The armature includes stator core and three-phase windings, stator core include stator core yoke, stator core tooth,
Stator dovetail groove；Rotor includes permanent magnet, rotor rack and axial pole pressing plate；The diameter/length ratio of flat permanent magnetic torque motor
Greater than 3.5；The relationship of the quantity P of the quantity Q and permanent magnet of stator dovetail groove is 2Q/3P=b/c, and b/c is necessary for proper fraction, and
B is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P take 4~9.The height of stator core yoke is hj, stator core tooth width
For bt, the upper and lower bottom width of stator dovetail groove is respectively bs1And bs2, hj、bt、bs1、bs2Between relationship are as follows: hj≈bt/ 2, if bt<
20mm, then hjTake 10mm, bt≈(bs1+bs2)/2.4P permanent magnet resettlement groove is offered on rotor rack, P is number of pole-pairs；Installation is forever
When magnet, the permanent magnet that magnetizing direction is N is placed first in two adjacent permanent magnet resettlement grooves, they constitute a magnetic
Pole N, then by clockwise or counterclockwise in other two adjacent permanent magnet resettlement groove place magnetizing direction be S forever
Magnet, they constitute another magnetic pole S, are so staggered, until installing all permanent magnets；Magnetic pole N or magnetic pole S are in electricity
Shape of a saddle magnetic field is produced in machine air gap, and the magnetic circuit of stator core can effectively be inhibited to be saturated.The axial sides of permanent magnet open up
There are permanent magnet seam allowance, height hzAbout 2mm, width bzAbout 2-3mm.
Axial pole pressing plate includes pressing plate tongue, pressing plate tongue height hy=hz, pressing plate tongue width by=bz；Pole end-plate can be with
It is a full circle, is also segmented into multiple, is finally spliced into full circle；Axial pole pressing plate is non-magnet material；Using axial magnetic
After extreme pressure plate, simplifies rotor machining and assembly technology, improve production efficiency.
After installing permanent magnet on rotor rack, the permanent magnet on permanent magnet is compressed with the pressing plate tongue of axial pole pressing plate and is stopped
Mouthful, then screw is screwed into pressing plate mounting hole and pole end-plate fixation hole.In coiling A, B, C three-phase windings, A phase winding exists
Coiling on b adjacent stator core tooth, if first stator core tooth forward direction coiling, second stator core tooth reversely around
System, so alternately positive and negative coiling, until being then separated by 2b stator core tooth, in 3b+1 stator around complete b stator core tooth
Core tooth forward direction coiling, so alternately positive and negative coiling b tooth oppositely wound in 3b+2 stator core tooth, altogether coiling GCD (Q,
P) group；According to same rule coiling B phase winding, remaining tooth coiling C phase winding on the b+1 tooth.
The specific advantage of the present invention is as follows:
Motor is flat structure, can be installed in the small space between balance weight and gear reduction box.
Two pieces of permanent magnets constitute a magnetic pole, and shape of a saddle magnetic field is generated in motor gas-gap, can effectively inhibit stator iron
The magnetic circuit of the heart is saturated and cogging torque.
Multiple one phase windings of tooth continuous coiling, electrical motor wire embedding simple process, contact is few, increases electrical security reliability.
Detailed description of the invention:
Fig. 1 is the structure chart of half direct-drive type flat permanent magnetic torque motor used for oil extractor of the invention；
Fig. 2 is half direct-drive type flat permanent magnetic torque motor planar elevation view used for oil extractor of the invention；
Fig. 3 is half direct-drive type flat permanent magnetic torque motor stator core figure used for oil extractor of the invention；
Fig. 4 is half direct-drive type flat permanent magnetic torque motor rotor rack figure used for oil extractor of the invention
Fig. 5 is half direct-drive type flat permanent magnetic torque motor rotor three-dimensional figure used for oil extractor of the invention；
Fig. 6 is axial pole pressing plate three-dimensional figure of the invention；
Fig. 7 is permanent magnet three-dimensional figure of the invention；
Fig. 8 is half direct-drive type flat permanent magnetic torque motor winding technique figure used for oil extractor of the invention；
Fig. 9 is half direct-drive type flat permanent magnetic torque motor, one phase winding figure used for oil extractor of the invention；
Description of symbols:
1. pedestal, 2. armatures, 3. rotors, 4. hollow shafts, 5. stator cores, 6. iron core stator yokes, 7. iron core stator tooths, 8.
Stator dovetail groove, 9. windings, 10. permanent magnets, 11. rotor racks, 12. axial pole pressing plates, 13. pole end-plate fixation holes, 14. are forever
Magnet arrangement slot, 15. magnetic pole N, 16. magnetic pole S, 17. pressing plate tongues, 18. pressing plate mounting holes.
Specific embodiment: following further describes the present invention with reference to the drawings:
A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, it is characterised in that: flat permanent magnetic torque motor includes
Pedestal (1), armature (2), rotor (3) and hollow shaft (4)；Armature (2), rotor (3) and hollow shaft (4) setting are interior in pedestal (1),
Hollow shaft (4) setting is at pedestal (1) center, and rotor (3) is arranged on hollow shaft (4) and is fixed as one with hollow shaft (4), electricity
Pivot (2) is arranged between rotor (3) and pedestal (1), is interference fitted between armature (2) and pedestal (1)；
The armature (2) includes stator core (5) and winding (9), and stator core (5) includes stator core yoke (6), stator
Core tooth (7) and stator dovetail groove (8)；Stator core tooth (7) setting is on the inside of stator core yoke (6), two adjacent stators
Stator dovetail groove (8) are formed between core tooth (7), winding (9) is wrapped on stator core tooth (7)；
Rotor (3) includes permanent magnet (10) and rotor rack (11)；Rotor (3) be arranged in stator core (5) by stator
In the space that core tooth (7) is crowded around, the outer circular edge in rotor rack (11) is arranged in permanent magnet (10).
The diameter of flat permanent magnetic torque motor/axial length ratio is greater than the 3.5 (diameters and axis of pedestal (1) i.e. shown in FIG. 1
To than)；The relationship of the quantity P of the quantity Q and permanent magnet (10) of stator dovetail groove (8) is 2Q/3P=b/c, and b/c is necessary for really dividing
Number, and b is 3 or 5, the greatest common divisor GCD (Q, P) of Q and P take 4~9.
Rotor (3) further includes axial pole pressing plate (12), and axial pole pressing plate (12) is withheld in rotor rack (11) outer circumferential edge
On the permanent magnet (10) of edge.
The height of stator core yoke (6) is hj, stator core tooth (7) width be bt, the upper and lower bottom of stator dovetail groove (8)
Width is respectively bs1And bs2, hj、bt、bs1、bs2Between relationship are as follows: hj≥bt/ 2, if bt< 20mm, then hjTake 10mm, bt=(bs1+
bs2)/2。
4P permanent magnet resettlement groove (14) is offered on rotor rack (11), P is number of pole-pairs；It is first when permanent magnet (10) are installed
The permanent magnet (10) that magnetizing direction is N is first placed in two adjacent permanent magnet resettlement grooves (14), they constitute a magnetic
Pole N (15) is then pressed and is put in other two adjacent (continuous) permanent magnet resettlement groove (14) clockwise or counterclockwise
The permanent magnet (10) that magnetizing direction is S is set, they constitute another magnetic pole S (16), are so staggered, until installing institute
There is permanent magnet；Magnetic pole N (15) or magnetic pole S (16) produce shape of a saddle magnetic field in motor gas-gap, can effectively inhibit stator iron
The magnetic circuit of the heart (5) is saturated.
The axial sides of permanent magnet (10) offer permanent magnet seam allowance (19), height hzFor 2mm, width bzFor 2-3mm.
Axial pole pressing plate (12) includes main pressing plate (12-1) and pressing plate tongue (17), and pressing plate tongue (17) is arranged in main pressing plate
The edge (12-1)；Pressing plate tongue (17) height hy=hz, pressing plate tongue (17) width by=bz；Pole end-plate (12) be a full circle or
Person is finally spliced into full circle by multiple portions；Axial pole pressing plate (12) is non-magnet material；Using axial pole pressing plate (12)
Afterwards, simplify rotor machining and assembly technology, improve production efficiency.In use, main pressing plate (12-1) snaps over rotor rack (11)
Axial end face (11-1) on, pressing plate tongue (17) snaps in permanent magnet seam allowance (19).
After installing permanent magnet (10) on rotor rack (11), compressed forever with the pressing plate tongue (17) of axial pole pressing plate (12)
Screw, is then screwed into pressing plate mounting hole (18) and pole end-plate fixation hole (13) by the permanent magnet seam allowance (19) on magnet (10)
In.
The A phase winding of winding (9) coiling (using first tooth as starting) on b adjacent stator core tooth (7), if the
One stator core tooth forward direction coiling, then second stator core tooth is oppositely wound, so alternately positive and negative coiling, until around complete b
A stator core tooth is then separated by 2b stator core tooth, fixed at 3b+2 in the 3b+1 stator core tooth forward direction coiling
Sub- core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group；
According to same rule coiling B phase winding, remaining tooth coiling C phase winding on the b+1 tooth.
Then coiling B phase winding, using b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if b+
1 stator core tooth forward direction coiling, then the b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until around complete b
A stator core tooth is then separated by 2b stator core tooth, in the 4b+1 stator core tooth forward direction coiling, in 4b+2 stator
Core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group；
Then coiling C phase winding, using 2b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if the
2b+1 stator core tooth forward direction coiling, then the 2b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until around
Complete b stator core tooth, is then separated by 2b stator core tooth, in the 5b+1 stator core tooth forward direction coiling, at 5b+2
Stator core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group.
Claims (10)
1. a kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor, it is characterised in that: flat permanent magnetic torque motor includes seat
Body (1), armature (2), rotor (3) and hollow shaft (4)；Armature (2), rotor (3) and hollow shaft (4) setting are empty in pedestal (1)
Mandrel (4) setting is at pedestal (1) center, and rotor (3) is arranged on hollow shaft (4) and is fixed as one with hollow shaft (4), armature
(2) it is arranged between rotor (3) and pedestal (1), is interference fitted between armature (2) and pedestal (1)；
The armature (2) includes stator core (5) and winding (9), and stator core (5) includes stator core yoke (6), stator core
Tooth (7) and stator dovetail groove (8)；Stator core tooth (7) setting is on the inside of stator core yoke (6), two adjacent stator cores
Stator dovetail groove (8) are formed between tooth (7), winding (9) is wrapped on stator core tooth (7)；
Rotor (3) includes permanent magnet (10) and rotor rack (11)；Rotor (3) be arranged in stator core (5) by stator core
In the space that tooth (7) is crowded around, the outer circular edge in rotor rack (11) is arranged in permanent magnet (10).
2. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 1, it is characterised in that: flat
The diameter of permanent magnet torque motor/axial length ratio is greater than 3.5；The quantity Q of stator dovetail groove (8) and the quantity P of permanent magnet (10)
Relationship be 2Q/3P=b/c, b/c is necessary for proper fraction, and b is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P take 4~9.
3. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 1, it is characterised in that: rotor
It (3) further include axial pole pressing plate (12), axial pole pressing plate (12) withholds the permanent magnet in rotor rack (11) outer circular edge
(10) on.
4. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 1 or 2, it is characterised in that:
The height of stator core yoke (6) is hj, stator core tooth (7) width be bt, the upper and lower bottom width of stator dovetail groove (8) is respectively
bs1And bs2, hj、bt、bs1、bs2Between relationship are as follows: hj≥bt/ 2, if bt< 20mm, then hjTake 10mm, bt=(bs1+bs2)/2。
5. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 1, it is characterised in that: rotor
4P permanent magnet resettlement groove (14) is offered on frame (11), P is number of pole-pairs；When installing permanent magnet (10), first adjacent two
The permanent magnet (10) that magnetizing direction is N is placed in a permanent magnet resettlement groove (14), they constitute a magnetic pole N (15), then
By the permanent magnet that placement magnetizing direction is S in other two adjacent permanent magnet resettlement groove (14) clockwise or counterclockwise
(10), they constitute another magnetic pole S (16), are so staggered, until installing all permanent magnets；Magnetic pole N (15) or
Magnetic pole S (16) produces shape of a saddle magnetic field in motor gas-gap.
6. a kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 1 or 5, it is characterised in that:
The axial sides of permanent magnet (10) offer permanent magnet seam allowance (19), height hzFor 2mm, width bzFor 2-3mm.
7. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 6, it is characterised in that: axial
Pole end-plate (12) includes main pressing plate (12-1) and pressing plate tongue (17), and pressing plate tongue (17) is arranged at the edge main pressing plate (12-1)；Pressure
Plate tongue (17) height hy=hz, pressing plate tongue (17) width by=bz；Pole end-plate (12) be a full circle or by multiple portions most
After be spliced into full circle；Axial pole pressing plate (12) is non-magnet material；After axial pole pressing plate (12), in use, main pressure
Plate (12-1) snaps on the axial end face (11-1) of rotor rack (11), and pressing plate tongue (17) snaps in permanent magnet seam allowance (19).
8. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 7, it is characterised in that: turning
After installing permanent magnet (10) in subrack (11), compressed on permanent magnet (10) with the pressing plate tongue (17) of axial pole pressing plate (12)
Permanent magnet seam allowance (19) is then screwed into screw in pressing plate mounting hole (18) and pole end-plate fixation hole (13).
9. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 2, it is characterised in that: winding
(9) coiling on b adjacent stator core tooth (7) of A phase winding, if first stator core tooth forward direction coiling, second
A stator core tooth is oppositely wound, so alternately positive and negative coiling, until being then separated by 2b stator around complete b stator core tooth
Core tooth, it is oppositely wound in the 3b+2 stator core tooth in the 3b+1 stator core tooth forward direction coiling, it is so alternately positive and negative
B tooth of coiling, total coiling GCD (Q, P) group；
According to same rule coiling B phase winding, remaining tooth coiling C phase winding on the b+1 tooth.
10. one kind half direct-drive type flat permanent magnetic torque motor used for oil extractor according to claim 9, it is characterised in that:
Then coiling B phase winding, using b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if b+1
Stator core tooth forward direction coiling, then the b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until fixed around complete b
Sub- core tooth is then separated by 2b stator core tooth, in the 4b+1 stator core tooth forward direction coiling, in 4b+2 stator core
Tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group；
Then coiling C phase winding, using 2b+1 as starting tooth, the coiling on b adjacent stator core tooth (7), if 2b+1
A stator core tooth forward direction coiling, then the 2b+2 stator core tooth is oppositely wound, so alternately positive and negative coiling, until around complete b
A stator core tooth is then separated by 2b stator core tooth, in the 5b+1 stator core tooth forward direction coiling, in 5b+2 stator
Core tooth is oppositely wound, so alternately b tooth of positive and negative coiling, altogether coiling GCD (Q, P) group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910108745.2A CN109713810A (en) | 2019-02-03 | 2019-02-03 | A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor |
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| CN201910108745.2A CN109713810A (en) | 2019-02-03 | 2019-02-03 | A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518726A (en) * | 2019-08-27 | 2019-11-29 | 中国北方车辆研究所 | A kind of direct driving motor |
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| CN101227108A (en) * | 2007-11-19 | 2008-07-23 | 哈尔滨工业大学 | Polyphase synchronous machine of concentrated winding structure |
| CN202076897U (en) * | 2011-04-27 | 2011-12-14 | 杭州赛孚机电科技有限公司 | Rotor assembly structure of embedded permanent magnetic synchronous motor |
| CN202260937U (en) * | 2011-10-31 | 2012-05-30 | 郑州新大方电力能源有限公司 | Direct-drive low-speed large-torque permanent magnet synchronous motor for tower-type pumping unit |
| CN203734414U (en) * | 2013-12-19 | 2014-07-23 | 吉林省展成电机节能服务有限公司 | Self-adaption oil pumping unit speed reducer direct-drive discoid rare earth permanent magnet motor |
| CN203883575U (en) * | 2014-05-15 | 2014-10-15 | 镇江东方康驰电机制造有限公司 | Fixing device of permanent magnet generator rotor steel magnet |
| CN105071557A (en) * | 2015-08-17 | 2015-11-18 | 江苏云泊智能停车系统科技有限公司 | Permanent magnetic direct-drive motor |
| CN209786885U (en) * | 2019-02-03 | 2019-12-13 | 大庆浩维石油科技开发有限公司 | Semi-direct-drive flat permanent magnet torque motor for oil pumping unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110518726A (en) * | 2019-08-27 | 2019-11-29 | 中国北方车辆研究所 | A kind of direct driving motor |
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