CN209786885U - Semi-direct-drive flat permanent magnet torque motor for oil pumping unit - Google Patents
Semi-direct-drive flat permanent magnet torque motor for oil pumping unit Download PDFInfo
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- CN209786885U CN209786885U CN201920187812.XU CN201920187812U CN209786885U CN 209786885 U CN209786885 U CN 209786885U CN 201920187812 U CN201920187812 U CN 201920187812U CN 209786885 U CN209786885 U CN 209786885U
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Abstract
A semi-direct drive type flat permanent magnet torque motor for an oil pumping unit comprises a base body (1), an armature (2), a rotor (3) and a hollow shaft (4); the armature (2), the rotor (3) and the hollow shaft (4) are arranged in the seat body (1), the hollow shaft (4) is arranged in the center of the seat body (1), the rotor (3) is arranged on the hollow shaft (4) and fixed with the hollow shaft (4) into a whole, the armature (2) is arranged between the rotor (3) and the seat body (1), and the armature (2) and the seat body (1) are in interference fit; the utility model discloses specific advantage as follows: the motor is flat structure, can install in the narrow and small space between balancing piece and gear reduction box. Two permanent magnets form a magnetic pole, a saddle-shaped magnetic field is generated in an air gap of the motor, and magnetic circuit saturation and tooth space torque of a stator core can be effectively inhibited. A plurality of teeth continuously wind a phase winding, the motor wire embedding process is simple, the number of contacts is small, and the safety and reliability of the electric motor are improved.
Description
The technical field is as follows: the utility model relates to a crude oil lifting device especially relates to a half direct drive flat permanent magnet torque motor for beam-pumping unit.
Background art: a beam-pumping unit is a main crude oil lifting device. The traditional beam-pumping unit adopts a two-stage speed reducing mechanism of an induction motor, a belt pulley and a gear reduction box to drive a sucker rod to reciprocate to lift crude oil, the system efficiency is low, particularly, the belt is greatly abraded, the labor cost is increased, and the yield is influenced. In order to solve the problems, the prior art once discloses a large-torque permanent magnet low-rotation-speed direct-drive pumping unit motor, a belt pulley and a gear reduction box are completely eliminated, but the motor is large in size and high in manufacturing cost, the conventional pumping unit is difficult to directly adopt, the pumping unit must be redesigned to be matched with the conventional pumping unit, and the popularization is limited. If a high-efficiency driving motor can be designed to eliminate a belt pulley, the high-efficiency driving motor can be perfectly matched with the existing pumping unit, and the system efficiency and the reliability of the pumping unit can be improved.
The utility model has the following contents:
Utility model purpose: the utility model provides a semi-direct drive flat permanent magnet torque motor for beam-pumping unit, its purpose does not change the structure of current beam-pumping unit, replaces original induction motor and belt pulley with flat permanent magnet torque motor, realizes permanent magnet torque motor drive gear reducing gear box, and flat permanent magnet torque motor installs in the narrow and small space between balancing piece and gear reducing gear box to solve the problem that exists in the past.
The technical scheme is as follows: the utility model discloses a realize through following technical scheme:
the utility model provides a flat permanent magnet torque motor of semi-direct drive formula for beam-pumping unit which characterized in that: the flat permanent magnet torque motor comprises a base, an armature, a rotor and a hollow shaft; the armature, the rotor and the hollow shaft are arranged in the seat body, the hollow shaft is arranged in the center of the seat body, the rotor is arranged on the hollow shaft and is fixed with the hollow shaft into a whole, the armature is arranged between the rotor and the seat body, and the armature and the seat body are in interference fit;
The armature comprises a stator core and a winding, and the stator core comprises a stator core yoke, stator core teeth and a stator trapezoidal groove; the stator iron core teeth are arranged on the inner side of the stator iron core yoke, a stator trapezoidal groove is formed between every two adjacent stator iron core teeth, and the windings are wound on the stator iron core teeth;
the rotor comprises a permanent magnet and a rotor frame; the rotor is arranged in a space enclosed by the teeth of the stator core in the stator core, and the permanent magnet is arranged on the edge of the outer circle of the rotor frame.
The diameter/axial length ratio of the flat permanent magnet torque motor is greater than 3.5 (namely the diameter to axial ratio of the seat body shown in figure 1); the relation between the number Q of the stator trapezoidal grooves and the number P of the permanent magnets is 2Q/3P-b/c, b/c must be a true fraction, b is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P is 4-9.
The rotor also comprises an axial magnetic pole pressure plate which is buckled on the permanent magnet on the edge of the excircle of the rotor frame.
The stator core yoke has a height hjthe width of the stator core teeth is btThe widths of the upper bottom and the lower bottom of the stator dovetail groove are respectively bs1And bs2，hj、bt、bs1、bs2The relationship between them is: h isj≥bt/2 if bt<20mm, then hjTake 10mm, bt＝(bs1+bs2)/2。
4P 'permanent magnet containing grooves are arranged on the rotor frame, and P' is a pole pair number; when the permanent magnets are installed, firstly, permanent magnets with the magnetizing directions of N are placed in two adjacent permanent magnet placing grooves to form a magnetic pole N, then, permanent magnets with the magnetizing directions of S are placed in the other two adjacent (continuous) permanent magnet placing grooves in the clockwise or anticlockwise direction to form another magnetic pole S, and the permanent magnets are arranged in a staggered mode until all the permanent magnets are installed; the magnetic pole N or the magnetic pole S generates a saddle-shaped magnetic field in the air gap of the motor, so that the magnetic circuit saturation of the stator core can be effectively inhibited.
the permanent magnet is provided with permanent magnet spigots at two axial sides and the height h of the permanent magnetzIs 2mm, width bzIs 2-3 mm.
The axial magnetic pole pressing plate comprises a main pressing plate and a pressing plate tongue, and the pressing plate tongue is arranged at the edge of the main pressing plate; height h of pressing plate tonguey＝hzWidth of the pressing plate tongue by＝bz(ii) a The magnetic pole pressing plate is a whole circle or a whole circle formed by splicing a plurality of parts finally; the axial magnetic pole pressing plate is made of a non-magnetic conductive material; after the axial magnetic pole pressing plate is adopted, the processing and assembling processes of the rotor are simplified, and the production efficiency is improved. When the permanent magnet rotor is used, the main pressure plate is buckled on the axial end face of the rotor frame, and the pressure plate tongue is buckled in the permanent magnet rabbet.
After the permanent magnet is installed on the rotor frame, the pressing plate tongue of the axial magnetic pole pressing plate is used for pressing the seam allowance of the permanent magnet, and then the screw is screwed into the pressing plate installation hole and the magnetic pole pressing plate fixing hole.
a phase winding of the winding is wound on b adjacent stator core teeth (starting from a first tooth), if a first stator core tooth is wound in a forward direction, a second stator core tooth is wound in a reverse direction, the winding is alternately wound in a forward and reverse direction until b stator core teeth are wound, then 2b stator core teeth are spaced, the winding is wound in a forward direction on the 3b +1 stator core tooth, the winding is wound in a reverse direction on the 3b +2 stator core tooth, the b teeth are alternately wound in the forward and reverse direction, and a GCD (Q, P) group is wound together;
And winding a B-phase winding on the (B + 1) th tooth according to the same rule, and winding a C-phase winding on the rest teeth.
Then winding a B-phase winding, taking B +1 as an initial tooth, winding on B adjacent stator core teeth, if the B +1 th stator core tooth is wound in the forward direction, winding the B +2 th stator core tooth in the reverse direction, alternately winding the forward and the reverse directions in such a way until the B stator core teeth are wound, then winding the 4B +1 th stator core tooth in the forward direction, winding the 4B +2 th stator core tooth in the reverse direction in such a way that the B teeth are wound in the forward and the reverse directions in such a way, and winding a GCD (Q, P) group together;
And then winding a C-phase winding, taking 2b +1 as an initial tooth, winding on b adjacent stator core teeth, if the 2b +1 stator core tooth is wound in the forward direction, winding the 2b +2 stator core teeth in the reverse direction, alternately winding the stator core teeth in the forward and reverse directions in such a way until the b stator core teeth are wound, then winding the stator core teeth in the forward direction at intervals of 2b stator core teeth, winding the stator core teeth in the forward direction at intervals of 5b +1 stator core teeth, winding the stator core teeth in the reverse direction at intervals of 5b +2 stator core teeth, alternately winding the b teeth in the forward and reverse directions in such a way, and winding a GCD (Q, P) group together.
The advantages and effects are as follows:
a semi-direct drive type flat permanent magnet torque motor for an oil pumping unit comprises a base, an armature, a rotor and a hollow shaft; the armature comprises a stator core and a three-phase winding, and the stator core comprises a stator core yoke, stator core teeth and a stator trapezoidal groove; the rotor comprises a permanent magnet, a rotor frame and an axial magnetic pole pressing plate; the diameter/length ratio of the flat permanent magnet torque motor is more than 3.5; the relation between the number Q of the stator trapezoidal grooves and the number P of the permanent magnets is 2Q/3P-b/c, b/c must be a true fraction, b is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P is 4-9. The stator core yoke has a height hjThe width of the stator core teeth is btThe widths of the upper bottom and the lower bottom of the stator dovetail groove are respectively bs1And bs2，hj、bt、bs1、bs2the relationship between them is: h isj≈bt/2 if bt<20mm, then hjTake 10mm, bt≈(bs1+bs2)/2. 4P 'permanent magnet containing grooves are arranged on the rotor frame, and P' is a pole pair number; when the permanent magnets are installed, firstly, permanent magnets with the magnetizing directions of N are placed in two adjacent permanent magnet placing grooves to form a magnetic pole N, then, permanent magnets with the magnetizing directions of S are placed in the other two adjacent permanent magnet placing grooves in the clockwise or anticlockwise direction to form another magnetic pole S, and the permanent magnets are arranged in a staggered mode until all the permanent magnets are installed; the magnetic pole N or the magnetic pole S generates a saddle-shaped magnetic field in the air gap of the motor, so that the magnetic circuit saturation of the stator core can be effectively inhibited. The permanent magnet is provided with permanent magnet spigots at two axial sides and the height h of the permanent magnetzAbout 2mm, width bzAbout 2-3 mm.
Axial magnetic pole pressing plate bagpressing plate tongue with height hy＝hzWidth of the pressing plate tongue by＝bz(ii) a The magnetic pole pressing plate can be a whole circle or can be divided into a plurality of magnetic pole pressing plates which are finally spliced into a whole circle; the axial magnetic pole pressing plate is made of a non-magnetic conductive material; after the axial magnetic pole pressing plate is adopted, the processing and assembling processes of the rotor are simplified, and the production efficiency is improved.
After the permanent magnet is installed on the rotor frame, the pressing plate tongue of the axial magnetic pole pressing plate is used for pressing the seam allowance of the permanent magnet, and then the screw is screwed into the pressing plate installation hole and the magnetic pole pressing plate fixing hole. When A, B, C three-phase windings are wound, an A-phase winding is wound on b adjacent stator core teeth, if a first stator core tooth is wound in a forward direction, a second stator core tooth is wound in a reverse direction, the winding is alternately wound in a forward and reverse direction until b stator core teeth are wound, then 2b stator core teeth are spaced, 3b +1 stator core teeth are wound in the forward direction, 3b +2 stator core teeth are wound in the reverse direction, and the b teeth are alternately wound in the forward and reverse direction, so that a GCD (Q, P) group is wound together; and winding a B-phase winding on the (B + 1) th tooth according to the same rule, and winding a C-phase winding on the rest teeth.
The utility model discloses specific advantage as follows:
The motor is flat structure, can install in the narrow and small space between balancing piece and gear reduction box.
Two permanent magnets form a magnetic pole, a saddle-shaped magnetic field is generated in an air gap of the motor, and magnetic circuit saturation and tooth space torque of a stator core can be effectively inhibited.
A plurality of teeth continuously wind a phase winding, the motor wire embedding process is simple, the number of contacts is small, and the safety and reliability of the electric motor are improved.
Description of the drawings:
Fig. 1 is a structural diagram of a semi-direct-drive flat permanent magnet torque motor for an oil pumping unit of the present invention;
fig. 2 is a plan elevation view of a semi-direct-drive flat permanent magnet torque motor for an oil pumping unit of the present invention;
Fig. 3 is a diagram of a stator core of a semi-direct-drive flat permanent magnet torque motor for an oil pumping unit of the present invention;
FIG. 4 is a view of the rotor frame of the semi-direct-drive flat permanent magnet torque motor for the pumping unit
Fig. 5 is a three-dimensional view of a semi-direct-drive flat permanent magnet torque motor rotor for the pumping unit of the present invention;
Fig. 6 is a three-dimensional view of the axial pole pressing plate of the present invention;
Fig. 7 is a three-dimensional view of the permanent magnet of the present invention;
fig. 8 is a winding diagram of a semi-direct-drive flat permanent magnet torque motor for the pumping unit of the present invention;
Fig. 9 is a phase winding diagram of a semi-direct-drive flat permanent magnet torque motor for an oil pumping unit of the present invention;
description of reference numerals:
1. the magnetic pole permanent magnet synchronous motor comprises a base body, 2. an armature, 3. a rotor, 4. a hollow shaft, 5. a stator core, 6. a core stator yoke, 7. a core stator tooth, 8. a stator trapezoidal groove, 9. a winding, 10. a permanent magnet, 11. a rotor frame, 12. an axial magnetic pole pressure plate, 13. a magnetic pole pressure plate fixing hole, 14. a permanent magnet placing groove, 15. magnetic poles N, 16. magnetic poles S, 17. a pressure plate tongue and 18. a pressure plate mounting hole.
the specific implementation mode is as follows: the invention will be further explained with reference to the drawings:
The utility model provides a flat permanent magnet torque motor of semi-direct drive formula for beam-pumping unit which characterized in that: the flat permanent magnet torque motor comprises a base body 1, an armature 2, a rotor 3 and a hollow shaft 4; the armature 2, the rotor 3 and the hollow shaft 4 are arranged in the seat body 1, the hollow shaft 4 is arranged in the center of the seat body 1, the rotor 3 is arranged on the hollow shaft 4 and is fixed with the hollow shaft 4 into a whole, the armature 2 is arranged between the rotor 3 and the seat body 1, and the armature 2 and the seat body 1 are in interference fit;
the armature 2 comprises a stator core 5 and a winding 9, wherein the stator core 5 comprises a stator core yoke 6, stator core teeth 7 and a stator trapezoidal groove 8; the stator core teeth 7 are arranged on the inner side of the stator core yoke 6, a stator trapezoidal groove 8 is formed between every two adjacent stator core teeth 7, and the winding 9 is wound on the stator core teeth 7;
the rotor 3 includes a permanent magnet 10 and a rotor frame 11; the rotor 3 is arranged in a space enclosed by the stator core teeth 7 in the stator core 5, and the permanent magnets 10 are arranged on the outer circumferential edge of the rotor frame 11.
The diameter/axial length ratio of the flat permanent magnet torque motor is more than 3.5 (namely the diameter-axial ratio of the seat body 1 shown in figure 1); the relation between the number Q of the stator trapezoidal grooves 8 and the number P of the permanent magnets 10 is 2Q/3P-b/c, b/c must be a true fraction, b is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P is 4-9.
The rotor 3 further comprises an axial magnetic pole pressing plate 12, and the axial magnetic pole pressing plate 12 is buckled on the permanent magnet 10 on the outer circle edge of the rotor frame 11.
The stator core yoke 6 has a height hjThe width of the stator core teeth 7 is btThe widths of the upper bottom and the lower bottom of the stator trapezoid-shaped groove 8 are respectively bs1And bs2，hj、bt、bs1、bs2The relationship between them is: h isj≥bt/2 if bt<20mm, then hjTake 10mm, bt＝(bs1+bs2)/2。
4P 'permanent magnet containing grooves 14 are arranged on the rotor frame 11, and P' is a pole pair number; when the permanent magnets 10 are installed, firstly, the permanent magnets 10 with the magnetizing direction of N are placed in two adjacent permanent magnet placing grooves 14 to form a magnetic pole N15, then, the permanent magnets 10 with the magnetizing direction of S are placed in the other two (continuous) adjacent permanent magnet placing grooves 14 in the clockwise or counterclockwise direction to form another magnetic pole S16, and the permanent magnets are arranged in a staggered mode until all the permanent magnets are installed; the magnetic pole N15 or the magnetic pole S16 generates a saddle-shaped magnetic field in the air gap of the motor, and the magnetic circuit saturation of the stator core 5 can be effectively inhibited.
Permanent magnet spigots 19 are arranged on two axial sides of the permanent magnet 10, and the height h of the permanent magnet spigotszIs 2mm, width bzis 2-3 mm.
the axial magnetic pole pressing plate 12 comprises a main pressing plate 12-1 and a pressing plate tongue 17, and the pressing plate tongue 17 is arranged at the edge of the main pressing plate 12-1; the height h of the pressure plate tongue 17y＝hzWidth b of pressing plate tongue 17y＝bz(ii) a The magnetic pole pressing plate 12 is a whole circle or a whole circle formed by splicing a plurality of parts finally; the axial magnetic pole pressing plate 12 is made of a non-magnetic conducting material; after the axial magnetic pole pressing plate 12 is adopted, the processing and assembling process of the rotor is simplified, and the production efficiency is improved.when in use, the main pressure plate 12-1 is buckled on the axial end surface 11-1 of the rotor frame 11, and the pressure plate tongue 17 is buckled in the permanent magnet seam allowance 19.
after the permanent magnet 10 is mounted on the rotor frame 11, the permanent magnet seam allowance 19 on the permanent magnet 10 is pressed by the pressure plate tongue 17 of the axial magnetic pole pressure plate 12, and then screws are screwed into the pressure plate mounting hole 18 and the magnetic pole pressure plate fixing hole 13.
Winding an A-phase winding of a winding 9 on b adjacent stator core teeth 7 (taking a first tooth as an initial), if the first stator core tooth is wound in a forward direction, winding a second stator core tooth in a reverse direction, winding the second stator core tooth in the forward and reverse directions alternately until b stator core teeth are wound, then winding the second stator core tooth at intervals of 2b stator core teeth, winding the third stator core tooth in the forward direction of 3b +1, winding the third stator core tooth in the reverse direction of 3b +2, winding the fourth stator core tooth in the forward and reverse directions alternately, and winding the fourth stator core tooth in the forward and reverse directions alternately to form a GCD (Q, P) group;
And winding a B-phase winding on the (B + 1) th tooth according to the same rule, and winding a C-phase winding on the rest teeth.
Then winding a B-phase winding, taking B +1 as an initial tooth, winding on B adjacent stator core teeth 7, if the B +1 th stator core tooth is wound in a forward direction, winding the B +2 th stator core tooth in a reverse direction, alternately winding the forward and the reverse directions in such a way until the B stator core teeth are wound, then winding the 4B +1 th stator core tooth in the forward direction at intervals, winding the 4B +2 th stator core tooth in the reverse direction, alternately winding the B teeth in the forward and the reverse directions in such a way, and winding a GCD (Q, P) group together;
And then winding a C-phase winding, taking 2b +1 as an initial tooth, winding on b adjacent stator core teeth 7, if the 2b +1 stator core teeth are wound in the forward direction, winding the 2b +2 stator core teeth in the reverse direction, alternately winding the stator core teeth in the forward and reverse directions in such a way until the b stator core teeth are wound, then winding the stator core teeth in the forward direction at intervals of 2b, winding the stator core teeth in the 5b +1 stator core teeth in the reverse direction at intervals of 5b +2 stator core teeth, alternately winding the b teeth in the forward and reverse directions in such a way, and winding a GCD (Q, P) group together.
Claims (10)
1. The utility model provides a flat permanent magnet torque motor of semi-direct drive formula for beam-pumping unit which characterized in that: the flat permanent magnet torque motor comprises a base body (1), an armature (2), a rotor (3) and a hollow shaft (4); the armature (2), the rotor (3) and the hollow shaft (4) are arranged in the seat body (1), the hollow shaft (4) is arranged in the center of the seat body (1), the rotor (3) is arranged on the hollow shaft (4) and fixed with the hollow shaft (4) into a whole, the armature (2) is arranged between the rotor (3) and the seat body (1), and the armature (2) and the seat body (1) are in interference fit;
The armature (2) comprises a stator core (5) and a winding (9), and the stator core (5) comprises a stator core yoke (6), stator core teeth (7) and a stator trapezoidal groove (8); the stator iron core teeth (7) are arranged on the inner side of the stator iron core yoke (6), a stator trapezoidal groove (8) is formed between every two adjacent stator iron core teeth (7), and the windings (9) are wound on the stator iron core teeth (7);
The rotor (3) comprises a permanent magnet (10) and a rotor frame (11); the rotor (3) is arranged in a space enclosed by the stator core teeth (7) in the stator core (5), and the permanent magnet (10) is arranged on the edge of the outer circle of the rotor frame (11).
2. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 1, is characterized in that: the diameter/axial length ratio of the flat permanent magnet torque motor is more than 3.5; the relation between the number Q of the stator trapezoidal grooves (8) and the number P of the permanent magnets (10) is 2Q/3P-b/c, b/c must be a true fraction, b is 3 or 5, and the greatest common divisor GCD (Q, P) of Q and P is 4-9.
3. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 1, is characterized in that: the rotor (3) also comprises an axial magnetic pole pressing plate (12), and the axial magnetic pole pressing plate (12) is buckled and pressed on the permanent magnet (10) on the edge of the excircle of the rotor frame (11).
4. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 1 or 2, characterized in that: the stator core yoke (6) has a height hjThe width of the stator core teeth (7) is btThe widths of the upper bottom and the lower bottom of the stator trapezoid groove (8) are respectively bs1And bs2，hj、bt、bs1、bs2the relationship between them is: h isj≥ bt/2 if bt<20mm, then hjTake 10mm, bt＝(bs1+bs2)/2。
5. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 1, is characterized in that: 4P 'permanent magnet containing grooves (14) are arranged on the rotor frame (11), and P' is a pole pair number; when the permanent magnets (10) are installed, firstly, the permanent magnets (10) with the magnetizing direction of N are placed in two adjacent permanent magnet placing grooves (14) to form a magnetic pole N (15), then, the permanent magnets (10) with the magnetizing direction of S are placed in the other two adjacent permanent magnet placing grooves (14) according to the clockwise or anticlockwise direction to form another magnetic pole S (16), and the permanent magnets are arranged in a staggered mode until all the permanent magnets are installed; pole N (15) or pole S (16) creates a saddle-shaped magnetic field in the motor air gap.
6. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 1 or 5, characterized in that: permanent magnet spigots (19) are arranged at two axial sides of the permanent magnet (10) and have a height hzIs 2mm, width bzIs 2-3 mm.
7. the semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 6, is characterized in that: the axial magnetic pole pressing plate (12) comprises a main pressing plate (12-1) and a pressing plate tongue (17), and the pressing plate tongue (17) is arranged at the edge of the main pressing plate (12-1); the height h of the pressure plate tongue (17)y＝hzWidth b of the pressing plate tongue (17)y＝bz(ii) a The magnetic pole pressing plate (12) is a whole circle or a whole circle formed by splicing a plurality of parts finally; the axial magnetic pole pressing plate (12) is a non-magnetic conducting material; after the axial magnetic pole pressing plate (12) is adopted, when the rotor frame is used, the main pressing plate (12-1) is buckled on the axial end face (11-1) of the rotor frame (11), and the pressing plate tongue (17) is buckled in the permanent magnet seam allowance (19).
8. the semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 7, is characterized in that: after the permanent magnet (10) is installed on the rotor frame (11), a pressing plate tongue (17) of the axial magnetic pole pressing plate (12) is used for pressing a permanent magnet seam allowance (19) on the permanent magnet (10), and then screws are screwed into the pressing plate installation holes (18) and the magnetic pole pressing plate fixing holes (13).
9. The semi-direct-drive flat permanent magnet torque motor for the oil pumping unit according to claim 2, is characterized in that: a phase winding of a winding (9) is wound on b adjacent stator core teeth (7), if a first stator core tooth is wound in a forward direction, a second stator core tooth is wound in a reverse direction, the winding is alternately wound in a forward and reverse direction until b stator core teeth are wound, then 2b stator core teeth are spaced, the winding is performed in a forward direction on the 3b +1 stator core tooth, the winding is performed in a reverse direction on the 3b +2 stator core tooth, the b teeth are alternately wound in the forward and reverse direction, and a GCD (Q, P) group is wound together;
and winding a B-phase winding on the (B + 1) th tooth according to the same rule, and winding a C-phase winding on the rest teeth.
10. the semi-direct-drive flat permanent magnet torque motor for the oil pumping unit of claim 9, wherein:
then winding a B-phase winding, taking B +1 as an initial tooth, winding on B adjacent stator core teeth (7), if the B +1 th stator core tooth is wound in a forward direction, winding the B +2 th stator core tooth in a reverse direction, alternately winding the B stator core teeth in the forward and reverse directions until the B stator core teeth are wound, then winding the 4B +1 th stator core tooth in the forward direction, winding the 4B +2 th stator core tooth in the reverse direction, alternately winding the B teeth in the forward and reverse directions, and winding a GCD (Q, P) group together;
And then winding a C-phase winding, taking 2b +1 as an initial tooth, winding on b adjacent stator core teeth (7), if the 2b +1 stator core teeth are wound in the forward direction, winding the 2b +2 stator core teeth in the reverse direction, winding the b stator core teeth alternately in the forward and reverse directions until the b stator core teeth are wound, then winding the b stator core teeth at intervals of 2b stator core teeth in the forward direction, winding the 5b +2 stator core teeth in the reverse direction, winding the b teeth alternately in the forward and reverse directions, and winding a GCD (Q, P) group together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187812.XU CN209786885U (en) | 2019-02-03 | 2019-02-03 | Semi-direct-drive flat permanent magnet torque motor for oil pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187812.XU CN209786885U (en) | 2019-02-03 | 2019-02-03 | Semi-direct-drive flat permanent magnet torque motor for oil pumping unit |
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| CN209786885U true CN209786885U (en) | 2019-12-13 |
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| CN201920187812.XU Active CN209786885U (en) | 2019-02-03 | 2019-02-03 | Semi-direct-drive flat permanent magnet torque motor for oil pumping unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713810A (en) * | 2019-02-03 | 2019-05-03 | 大庆浩维石油科技开发有限公司 | A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor |
| CN114142648A (en) * | 2021-12-07 | 2022-03-04 | 江苏集萃智能制造技术研究所有限公司 | Frameless torque motor and test method thereof |
-
2019
- 2019-02-03 CN CN201920187812.XU patent/CN209786885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713810A (en) * | 2019-02-03 | 2019-05-03 | 大庆浩维石油科技开发有限公司 | A kind of half direct-drive type flat permanent magnetic torque motor used for oil extractor |
| CN114142648A (en) * | 2021-12-07 | 2022-03-04 | 江苏集萃智能制造技术研究所有限公司 | Frameless torque motor and test method thereof |
| CN114142648B (en) * | 2021-12-07 | 2023-09-15 | 江苏集萃智能制造技术研究所有限公司 | Frameless torque motor and testing method thereof |
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