CN201430520Y - Brushless DC motor for energy-saving oil extractor - Google Patents
Brushless DC motor for energy-saving oil extractor Download PDFInfo
- Publication number
- CN201430520Y CN201430520Y CN2009200413865U CN200920041386U CN201430520Y CN 201430520 Y CN201430520 Y CN 201430520Y CN 2009200413865 U CN2009200413865 U CN 2009200413865U CN 200920041386 U CN200920041386 U CN 200920041386U CN 201430520 Y CN201430520 Y CN 201430520Y
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- external rotor
- motor
- energy
- belt
- brushless
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Abstract
The utility model discloses a brushless DC motor for an energy-saving oil extractor. By adopting a stator of a multi-level magnetic circuit and a cylindrical outer rotor adhered with high-property neodymium iron boron magnetic steel, the low speed and large torque can be realized; by adopting a structure that a belt is utilized to directly drive an oil extraction rod, the complicated transmissionmechanism of a conventional beam-pumping unit can be saved, the working efficiency of the oil extractor can be improved, and the energy conservation can be realized; by adopting a standby Hall sensor,the possibility for replacing a position sensor is greatly reduced, and since the standby Hall sensor is installed inside a bearing cover, the position sensor can be replaced only by removing a dustproof cover when necessary without disassembling a motor, so the weakness of the traditional motor that the replacement of the position sensor requires the disassembling of the motor can be prevented;and the oil extraction stroke is not only limited by the hardware but also is limited by the software, so that stroke control is more efficient and more reliable, and the well washout can be effectively prevented.
Description
Technical field
The utility model relates to the motor that uses on a kind of petroleum extractor, a kind of specifically low speed, big moment brshless DC motor.
Background technology
Oil pumper commonly used at present is a beam type, it is made up of horse head, lever walking beam, support, connecting rod, cam, reduction box, support, motor, electrical control cubicles etc., the motor that present oil pumper adopts is asynchronous machine or permanent magnet synchronous machine, the outputting power of motor drives sucker rod via transmissions such as reduction box, cam, connecting rod, horse head, lever walking beams and moves up and down, and realizes the oil pumping function.This class oil pumper overall efficiency is lower, about about 30%.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of brushless DC motor for energy-saving oil extractor, and this brushless DC motor for energy-saving oil extractor has the characteristic of low speed, big moment, and has advantages such as easy to maintenance, that control is reliable.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of brushless DC motor for energy-saving oil extractor, comprise dead axle, the external rotor of stator and tubular, dead axle fixedly is through in the stator, stator is with external rotor outward, between external rotor and stator air gap is arranged, two end cap is individually fixed in external rotor two ends and sealing external rotor two ends, dead axle passes two end cap, external rotor and two end cap can be rotated around dead axle, the magnetic circuit of described stator is greater than 20 pairs of levels, the external rotor internal fixation of described tubular has the Nd-Fe-B magnet steel of (being stained with) magnetic energy product more than or equal to 35MGOs, makes this brushless DC motor for energy-saving oil extractor reach 1～35 rev/min low speed, reach as high as the big moment of 9500 Ns of rice.
Further technical scheme of the present utility model is:
Respectively be fixed with two belt pulleys on the outer face of two end caps of described external rotor, belt pulley is through on the dead axle, external rotor drives end cap and belt pulley rotates around dead axle, be arranged with belt on the belt pulley, belt is provided with four, article two, an end of belt is individually fixed on two belt pulleys at external rotor two ends, and the other end of two belts all connects sucker rod; One end of two other belt is fixed on two other belt pulley at external rotor two ends, and the other end of two other belt all connects balance weight.The rotating of belt pulley has driven sucker rod and has pumped, balance weight is done the counter motion with respect to sucker rod simultaneously, this belt directly drives the structure of sucker rod can save the loaded down with trivial details transmission mechanism of beam pumping unit commonly used, can improve the oil pumper operating efficiency, reach purpose of energy saving.
All be provided with bearing between the end cap at described external rotor two ends and belt pulley and dead axle, the outer end of two bearings all is sealed with bearing cap, one of them bearing cap inside offers accommodation space, being provided with the Hall element of preparing and carrying part fixedly is placed in the accommodation space in the bearing cap, be provided with dust cap, accommodation space on the dust cap sealing bearing cap, the described inductive magnetic steel of preparing and carrying the Hall element of part is embedded in the inner surface of external rotor.Because position transducer has adopted the Hall element of preparing and carrying part, the possibility that makes position transducer to change descends greatly, again owing to the Hall element of preparing and carrying part is loaded in the bearing cap, change even need, only need pull down dust cap during replacing can implement, needn't take motor apart, avoid the confidential change bit of traditional electrical to put the drawback that transducer need be taken motor apart.
Be provided with electric machine controller, electric machine controller is carried out the dual spacing control protection of software control and hardware controls to the oil pumper stroke.Make that like this stroke that recovers the oil has had software limit again except hardware limit, make stroke control more effective and reliable, can effectively prevent towards well.
Described software control is meant Control Software is installed in the electric machine controller, and Hall element is given electric machine controller with the data passes of sampling, and the Control Software in the electric machine controller is carried out analyzing and processing and controlled the oil pumper stroke data.
Hardware controls is meant travel switch.
The beneficial effects of the utility model are: this brushless DC motor for energy-saving oil extractor has been owing to adopted the stator of multistage magnetic circuit (greater than 20 pairs of utmost points) and be stained with the external rotor of the tubular of high-performance Ne-Fe-B magnet steel (being not less than N35), reached the purpose of low speed (1～35 rev/min), big moment (reaching as high as 9500 Ns of rice); Owing to adopted belt directly to drive the structure of sucker rod, saved the loaded down with trivial details transmission mechanism of beam pumping unit commonly used, can improve the oil pumper operating efficiency, reach purpose of energy saving; Owing to adopted the Hall element of preparing and carrying part, the possibility that makes position transducer to change descends greatly, again owing to the Hall element of preparing and carrying part is loaded in the bearing cap, change even need, only need pull down dust cap during replacing can implement, needn't take motor apart, avoid the confidential change bit of traditional electrical to put the drawback that transducer need be taken motor apart; The stroke that recovers the oil has software limit again except hardware limit, make stroke control more effective and reliable, can effectively prevent towards well.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the another side view of Fig. 1;
Fig. 3 is the A portion enlarged drawing of Fig. 1.
Embodiment
Embodiment: a kind of brushless DC motor for energy-saving oil extractor, comprise dead axle 1, the external rotor 3 of stator 2 and tubular, dead axle fixedly is through in the stator, stator is with external rotor outward, between external rotor and stator air gap is arranged, two end cap 4 is individually fixed in external rotor two ends and sealing external rotor two ends, dead axle passes two end cap, external rotor and two end cap can be rotated around dead axle, the magnetic circuit of described stator is greater than 20 pairs of levels, the external rotor internal fixation of described tubular has the Nd-Fe-B magnet steel of (being stained with) magnetic energy product more than or equal to 35MGOs, makes this brushless DC motor for energy-saving oil extractor reach 1～35 rev/min low speed, reach as high as the big moment of 9500 Ns of rice.
Respectively be fixed with two belt pulleys 5 on the outer face of two end caps of described external rotor, belt pulley is through on the dead axle, external rotor drives end cap and belt pulley rotates around dead axle, be arranged with belt 6 on the belt pulley, belt is provided with four, article two, an end of belt is individually fixed on two belt pulleys at external rotor two ends, and the other end of two belts all connects sucker rod; One end of two other belt is fixed on two other belt pulley at external rotor two ends, and the other end of two other belt all connects balance weight.The rotating of belt pulley has driven sucker rod and has pumped, balance weight is done the counter motion with respect to sucker rod simultaneously, this belt directly drives the structure of sucker rod can save the loaded down with trivial details transmission mechanism of beam pumping unit commonly used, can improve the oil pumper operating efficiency, reach purpose of energy saving.
All be provided with bearing between the end cap at described external rotor two ends and belt pulley and dead axle, the outer end of two bearings all is sealed with bearing cap 7, one of them bearing cap inside offers accommodation space, being provided with the Hall element of preparing and carrying part 8 fixedly is placed in the accommodation space in the bearing cap, be provided with dust cap 9, accommodation space on the dust cap sealing bearing cap, the described inductive magnetic steel of preparing and carrying the Hall element of part is embedded in the inner surface of external rotor.Because position transducer has adopted the Hall element of preparing and carrying part, the possibility that makes position transducer to change descends greatly, again owing to the Hall element of preparing and carrying part is loaded in the bearing cap, change even need, only need pull down dust cap during replacing can implement, needn't take motor apart, avoid the confidential change bit of traditional electrical to put the drawback that transducer need be taken motor apart.
Be provided with electric machine controller 10, electric machine controller is carried out the dual spacing control protection of software control and hardware controls to the oil pumper stroke.Make that like this stroke that recovers the oil has had software limit again except hardware limit, make stroke control more effective and reliable, can effectively prevent towards well.
Described software control is meant Control Software is installed in the electric machine controller, and Hall element is given electric machine controller with the data passes of sampling, and the Control Software in the electric machine controller is carried out analyzing and processing and controlled the oil pumper stroke data.
Hardware controls is meant travel switch.
Claims (6)
1, a kind of brushless DC motor for energy-saving oil extractor, it is characterized in that: the external rotor (3) that comprises dead axle (1), stator (2) and tubular, dead axle fixedly is through in the stator, stator is with external rotor outward, between external rotor and stator air gap is arranged, two end cap (4) is individually fixed in external rotor two ends and sealing external rotor two ends, dead axle passes two end cap, external rotor and two end cap can be rotated around dead axle, the magnetic circuit of described stator is greater than 20 pairs of levels, and the external rotor internal fixation of described tubular has the Nd-Fe-B magnet steel of magnetic energy product more than or equal to 35MGOs.
2, a kind of brushless DC motor for energy-saving oil extractor according to claim 1, it is characterized in that: respectively be fixed with two belt pulleys (5) on the outer face of two end caps of described external rotor, belt pulley is through on the dead axle, external rotor drives end cap and belt pulley rotates around dead axle, be arranged with belt (6) on the belt pulley, belt is provided with four, and an end of two belts is individually fixed on two belt pulleys at external rotor two ends, and the other end of two belts all connects sucker rod; One end of two other belt is fixed on two other belt pulley at external rotor two ends, and the other end of two other belt all connects balance weight.
3, a kind of brushless DC motor for energy-saving oil extractor according to claim 2, it is characterized in that: all be provided with bearing between the end cap at described external rotor two ends and belt pulley and dead axle, the outer end of two bearings all is sealed with bearing cap (7), one of them bearing cap inside offers accommodation space, being provided with the Hall element of preparing and carrying part (8) fixedly is placed in the accommodation space in the bearing cap, be provided with dust cap (9), accommodation space on the dust cap sealing bearing cap, the described inductive magnetic steel of preparing and carrying the Hall element of part is embedded in the inner surface of external rotor.
4, a kind of brushless DC motor for energy-saving oil extractor according to claim 3 is characterized in that: be provided with electric machine controller (10), electric machine controller is carried out the dual spacing control protection of software control and hardware controls to the oil pumper stroke.
5, a kind of brushless DC motor for energy-saving oil extractor according to claim 4, it is characterized in that: described software control is meant Control Software is installed in the electric machine controller, Hall element is given electric machine controller with the data passes of sampling, and the Control Software in the electric machine controller is carried out analyzing and processing and controlled the oil pumper stroke data.
6, a kind of brushless DC motor for energy-saving oil extractor according to claim 4, it is characterized in that: hardware controls is meant travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200413865U CN201430520Y (en) | 2009-03-30 | 2009-03-30 | Brushless DC motor for energy-saving oil extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200413865U CN201430520Y (en) | 2009-03-30 | 2009-03-30 | Brushless DC motor for energy-saving oil extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430520Y true CN201430520Y (en) | 2010-03-24 |
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ID=42034259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200413865U Expired - Lifetime CN201430520Y (en) | 2009-03-30 | 2009-03-30 | Brushless DC motor for energy-saving oil extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201430520Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854107A (en) * | 2009-03-30 | 2010-10-06 | 昆山航天林泉电机有限公司 | Brushless DC motor for energy-saving oil extractor |
| CN102263471A (en) * | 2010-05-24 | 2011-11-30 | 蔡国法 | Brushless driving motor of vehicle |
| CN103343782A (en) * | 2013-06-24 | 2013-10-09 | 苏州快吉刀片制造有限公司 | Motor for blade grinding equipment |
-
2009
- 2009-03-30 CN CN2009200413865U patent/CN201430520Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854107A (en) * | 2009-03-30 | 2010-10-06 | 昆山航天林泉电机有限公司 | Brushless DC motor for energy-saving oil extractor |
| CN101854107B (en) * | 2009-03-30 | 2013-07-10 | 昆山航天林泉电机有限公司 | Brushless DC motor for energy-saving oil extractor |
| CN102263471A (en) * | 2010-05-24 | 2011-11-30 | 蔡国法 | Brushless driving motor of vehicle |
| CN102263471B (en) * | 2010-05-24 | 2013-06-19 | 蔡国法 | Brushless driving motor of vehicle |
| CN103343782A (en) * | 2013-06-24 | 2013-10-09 | 苏州快吉刀片制造有限公司 | Motor for blade grinding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100324 Effective date of abandoning: 20090330 |
|
| RGAV | Abandon patent right to avoid regrant |