CN102410000B - Static balance permanent magnetic stepper walking beam oil pumping machine - Google Patents
Static balance permanent magnetic stepper walking beam oil pumping machine Download PDFInfo
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- CN102410000B CN102410000B CN201010287564.XA CN201010287564A CN102410000B CN 102410000 B CN102410000 B CN 102410000B CN 201010287564 A CN201010287564 A CN 201010287564A CN 102410000 B CN102410000 B CN 102410000B
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- magnetic pole
- oil pumping
- walking beam
- horse head
- stator
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Abstract
The invention relates to a static balance permanent magnetic stepper walking beam oil pumping machine, in particular to a stepper motor transmission oil pumping machine in a walking beam-type structure, which belongs to the technical field of static balance oil pumping machines. The invention provides the static balance permanent magnetic stepper walking beam oil pumping machine which not only keeps the advantages of a walking beam oil pumping machine but also has the advantages of a static balance oil pumping machine. The static balance permanent magnetic stepper walking beam oil pumping machine comprises a base; a support is fixedly arranged on the base; a walking beam is arranged on a bearing shaft on the top end; one end of the walking beam is an oil pumping horse head; the oil pumping horse head is connected with an oil pump arranged at the bottom of a well through an oil pumping wire rope and a sucker rod; and the structural essentials are that: the other end of the walking beam is provided with a balance horse head which is symmetric with the oil pumping horse head; the balance horse head is connected with a counterweight through a steel wire rope and a permanent magnetic stepper motor; and a stator of the permanent magnetic stepper motor is arranged outside a rotor.
Description
Technical field
The invention belongs to static balance formula oil pumper technical field, relate in particular to a kind of oil pumper of stepper motor transmission of beam type structure.
Background technology
1, beam-pumping unit brief introduction
This oil pumper is made up of several parts such as sucker rod, wire rope, horse head, walking beam, connecting rod, gearbox, crank, balance weight, motor, when operation, drive speed reduction box shaft to rotate by motor, reduction gearbox output shaft drives crank and balance weight rotation, crank again drivening rod hauls walking beam and rotates around fulcrum roller, the horse head of the walking beam other end drives wire rope to do circular motion, move up and down thereby haul sucker rod, complete oil pumping task.
The advantage of this oil pumper is simple in structure, and the ability of opposing adverse circumstances is stronger, also has an advantage that other oil pumper is incomparable, and the transmission that is exactly it completes by two simple wire rope.This wire rope is worked in the open, is not afraid of wind and snow, is not afraid of sand and dust, simultaneously because of the radius of curvature >=2.5m of horse head, wants large 4～5 times compared with the head sheave of other oil pumper, and wire rope indefatigability fractures, and the life-span is 5～10 times of other steel wire rope of oil pumping unit application life.Maintenance cycle can extend greatly.But this oil pumper is dynamically balanced, be that sucker rod is to realize by the horse head of arc structure with the oily gravitational moment of taking out, its value invariable (ignoring several kilograms of oil that enter pipeline), and with the counterweight of its balance be the gravitational moment of crank, connecting rod and balance weight and the rotational power square of balance weight.This part changes by sinusoidal rule, no matter how balancing piece, this system does not all reach statically balanced level, therefore, for solving imbalance problem, certainly will join large-size machine, pumping-unit motor, because of the uneven supersynchronous speed generating of system, produces a large amount of higher hamonic waves simultaneously, when serious, burn pumping-unit motor, burn the power electronic element in frequency converter, and pollute electrical network.
2, static balance oil pumping
Cannot realize for beam-pumping unit the problem that static balance produces, succeed in developing the static balance oil pumpers such as pylon oil pumper and wide belt oil pumping machine, not only the rated capacity of institute's distribution motivation reduces greatly, has stopped the supersynchronous fast generating problem of oil pumper simultaneously.But above-mentioned all types of oil pumper has all produced again new problem, restrict its development and popularization:
A, chain drive pumping unit, in drive chain case, there is a drive sprocket being driven by motor shaft, with a driven sprocket being placed in above drive sprocket, between connect the chain of a circulation, on chain, fix round pin, round pin is fixed on the slide block of commutator, slide block is placed in the slideway of balancing weight, when round pin is followed chain row culture elliptical motion, drive balancing weight to move up and down by slide block, two wire rope are fixed in balancing weight upper end, pull sucker rod to move up and down by head sheave, complete oil pumping task.
This oil pumper advantage is to realize static balance, gas-distributing motor capacity reduces, stop the supersynchronous speed generating of oil pumper simultaneously, shortcoming is that machine requirement is very strict, balancing weight is actually the large slide block of tens tons of weights, commutator is also that slide block has coordinated with slideway, for alleviating the friction of slide block, needs a large amount of spray apply oils.Due to architectonic reason, the environment in all oil fields is all very severe, is not at marsh sebkha, is exactly in Desert of Gobi, although balancing weight and commutator additional one deck drive chain case, still can't stop the invasion and attack of alkaline earth fine sand, above-mentioned slideway is easy to destroyed and Ka Jing.In addition, the trimming moment of this oil pumper is by two wire rope, transmits by head sheave, because head sheave cannot be done greatly, radius of curvature is general≤and 1m, so wire rope is fractureed very soon.Therefore the accident rate of such oil pumper is very high, has limited its popularization.
B, pylon oil pumper
This oil pumper, be for chain making machine and improved, it has still adopted chain drive, but balance weight no longer needs fine finishining, but being hung in the outdoor placement in outside, commutator does not rely on slider slideway yet, but counterweight rope and oil pumping rope are all fixed on a pin, pin is fixed on chain, formed simple commutator, for making chain stress balance, counterweight rope is on the land wheel of oil pumper bottom, be connected on balance weight by head sheave, oil pumping rope is connected on sucker rod by head sheave.Motor Drive drive sprocket, drive chain around driven pulley cycle operation, drive commutator, pull two wire rope to do motion in the other direction, when balance weight is moved downward, the sucker rod oil pumping that moves upward, when balance weight moves upward, the descending oil well pump oil suction of sucker rod, motion, completes oil pumping task and so forth.
This oil pumper has the existing all advantages of chain drive pumping unit, overcome chain drive pumping unit processing difficulties and moved perishable disadvantage, but because head sheave, land wheel radius of curvature cannot be done greatly, therefore the easily broken problem of wire rope still cannot solve, equally also restrict applying of it.
C, wide belt frequency conversion oil pumper
Basic structure is with pylon oil pumper, but had significant improvement, and one is not established commutator, and back and forth movement drives reductor to drive power transmission shaft by variable-frequency motor, and wire rope is not established in its two transmission, replaces with wide belt, still changed and is subject to force direction by head sheave and return pulley.This oil pumper is compared with above-mentioned static balance oil pumper, and performance is basic identical, and structure is simpler.The life-span of wide belt, accident rate declined to some extent than length of steel rope.But compared with the wire rope of beam-pumping unit, application life or short many, and also wide belt is to be arranged in a row with many high-quality seizing wires, hangs top-quality rubber around and forms, processing cost is higher, still restricts its popularization.
Summary of the invention
The present invention is exactly for the problems referred to above, and a kind of advantage that had both retained beam-pumping unit is provided, and has again the static balance permanent magnetic stepper walking beam oil pumping machine of the advantage of static balance oil pumper.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technical scheme, the present invention includes base, fixed support on base, on the bolster on top, be provided with walking beam, one end of walking beam is oil pumping horse head, oil pumping horse head is connected by pumping steel wire rope, the same oil well pump of sucker rod (in shaft bottom), the other end of its structural feature walking beam is provided with the symmetrical balance horse head of oil pumping horse head, balance horse head is connected with counterweight by the mover of wire rope, permanent magnetic step motor, and mover is outside equipped with the stator of permanent magnetic step motor.
Beneficial effect of the present invention
1, simple in structure
The present invention forms with existing beam-pumping unit transformation exactly, oil pumping side is motionless, and existing motor, reductor, crank, connecting rod, balance weight etc. are all removed, and mainly with balance horse head and permanent magnetic step motor and counterweight replacement, therefore, make of the present invention simple in structure, be easy to make.
2, performance is good
Stepping of the present invention has advantages of beam-pumping unit: simple in structure, opposing adverse circumstances ability is strong, and rope service-life is than 5～10 times of the high life of other oil pumper, and maintenance cycle can extend greatly; In addition, oil pumper of the present invention can reach static balance, avoids producing higher hamonic wave, prevents from burning out the power electric component of motor and frequency converter etc. and prevents from polluting electrical network.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is permanent magnetic step motor structural representation.
Detailed description of the invention
As shown in Figure 1, the present invention includes base 2, fixed support 4 on base 2, on the bolster 9 on top, be provided with walking beam 6, one end of walking beam 6 is oil pumping horse head 5, and oil pumping horse head 5 is connected by pumping steel wire rope 3, the same oil well pump of sucker rod 1 (in shaft bottom), and the other end of walking beam 6 is provided with the symmetrical balance horse head 14 of oil pumping horse head 5, balance horse head 14 is connected with counterweight 7 by the mover 12 of wire rope 13, permanent magnetic step motor 8, and mover 12 is outside equipped with the stator 11 of permanent magnetic step motor 8.
The stator 11 of permanent magnetic step motor 8 is outside equipped with the stator case 16 that is fixed on stator support 15 tops, is provided with permanent magnet 17 in stator case 16, and top, the below of permanent magnet 17 are respectively arranged with magnetic pole (3 successively
#, 2
#), magnet exciting coil EMA18, magnet exciting coil EMB19; In stator 11, be provided with mover 12; On the magnetic pole of mover 12 and stator 11, be respectively arranged with rectangular channel 20.
The below of base 2 is provided with counterweight well; Be convenient to counterweight and fall within for 7 times undergroundly, saved the space on ground.
The bolster 9 of walking beam 6 can be arranged on the spring bearing 10 of fixed support 4; Be convenient to the rotation of walking beam 6.
Below in conjunction with brief description of the drawings one-off process of the present invention:
After stator 11 energisings, mover 12 is slowly creeped downwards by setup program, pulls sucker rod 1 to pump by walking beam 6, and when mover 12 stops in limited time automatically to lower, now sucker rod 1 is to top dead centre.Then mover 12 again follow procedure slowly upwards creep, send sucker rod 1 to move downward, oil well pump punching oil, mover 12 arrives and above automatically stops in limited time, now sucker rod 1 reaches lower dead center, back and forth movement like this, completes oil pumping.
As shown in Figure 2, stator 11 is drum-shapeds to the structure of permanent magnetic step motor 8, and bucket is fixed with a circle permanent magnet 17 on wall, establishes magnet exciting coil EMA18 below the N utmost point, and this coil downside is provided with 1
#magnetic pole, upside establishes 2
#magnetic pole; Permanent magnet S utmost point upside is established magnet exciting coil EMB19, and this coil downside is provided with 3
#magnetic pole, upside is provided with 4
#magnetic pole.The magnetic pole upper groove of getting on the bus, slot pitch is τ, 1
#magnetic pole and 2
#magnetic pole (3
#magnetic pole and 4
#magnetic pole) between pole span P
1 -2(P
3-4the τ of)=(M+1/2), magnetic pole thickness b and coil thickness sum equal polar moment, 2
#magnetic pole and 3
#pole center is apart from P
2-3=(K+1/4) τ-b, (in above formula, M, K are any positive integer, and K > M).Mover 12 is cast steel cylinders that are about 4m, outside is by groove on above-mentioned slot pitch τ car, the outside diameter of groove is than the little about 1mm of pole bore diameter, the distance of cloth groove is greater than stroke and the stator 11 height sums of sucker rod 1, wire rope clip is established in mover 12 upper ends, be connected with mover wire rope, counter-balanced carriage is burn-on in order to hang counterweight 7 in lower end, and this oil pumper is transferred to static balance.
Stator 11 is powered by special control device, and this device can supply two-way power supply, the road long duration currents such as cosine amplitude modulation that are as the criterion simultaneously, for magnet exciting coil EMA18, another road long duration currents such as sine modulation that are as the criterion, amplitude equates with the first via, width also equates with the first via, for magnet exciting coil EMB19.
In the time that control device is not powered, permanent magnet 17 is by 1
#magnetic pole, 2
#magnetic pole, mover and 3
#magnetic pole, 4
#magnetic pole forms magnetic circuit, and it is uniformly that magnetic line of force Φ m distributes, and respectively estimates φ m/2,1
#, 2
#the magnetic poles line of force is pointed to mover, 3
#, 4
#magnetic pole points to magnetic pole by mover 12.
In the time that magnet exciting coil EMA18 supplies forward current, Φ A in this part magnetic line of force (establishes φ A=1/2 φ m) from 1
#magnetic pole out, gets back to 2 through mover 12
#magnetic pole.1
#in magnetic pole, the magnetic line of force increases to φ m, 2
#to offset be 0 to the magnetic line of force in magnetic pole, therefore 1
#magnetic pole holds and aims at a mover groove.Next moment magnet exciting coil EMB19 confesses negative current, and in like manner 4
#magnetic pole payment is 0,3
#magnetic pole increases to φ m, therefore 3
#magnetic pole holds and aims at a mover groove, thereby makes mover 12 move down the distance of τ/4; Next moment magnet exciting coil EMA18 is for negative current, 2 again
#magnetic pole increases to φ m, holds and aim at a mover groove, makes mover 12 move down again τ/4 distance, and the 4th moment magnet exciting coil EMB19 confesses forward current, 3
#magnetic pole holds and aims at a mover groove, then makes mover 12 move down τ/4 distance.In the time that power supply program is contrary to the above, mover 12 moves up, and so back and forth movement, completes oil pumping task.
Claims (1)
1.
static balance permanent magnetic stepper walking beam oil pumping machine, comprise base (2), the upper fixed support (4) of base (2), on the bolster (9) on top, be provided with walking beam (6), one end of walking beam (6) is oil pumping horse head (5), oil pumping horse head (5) is by pumping steel wire rope (3), sucker rod (1) is connected with oil well pump, the other end that it is characterized in that walking beam (6) is provided with the symmetrical balance horse head (14) of oil pumping horse head (5), balance horse head (14) is by wire rope (13), the same counterweight of mover (12) (7) of permanent magnetic step motor (8) is connected, mover (12) is outside equipped with the stator (11) of permanent magnetic step motor (8), the stator (11) of permanent magnetic step motor (8) is outside equipped with the stator case (16) that is fixed on stator support (15) top, in stator case (16), be provided with permanent magnet (17), below permanent magnet (17) the N utmost point, establish magnet exciting coil EMA(18), this coil downside is provided with 1 # magnetic pole, upside establishes 2 # magnetic pole, permanent magnet (17) S utmost point upside is established magnet exciting coil EMB(19), this coil downside is provided with 3 # magnetic pole, upside is provided with 4 # magnetic pole, in stator (11), be provided with mover (12), on the magnetic pole of mover (12) and stator (11), be respectively arranged with rectangular channel (20), the below of base (2) is provided with counterweight well, the bolster (9) of walking beam (6) is arranged on the spring bearing (10) of fixed support (4), magnetic pole the above rectangular channel (20) of getting on the bus, slot pitch is τ, 1 # magnetic pole and 2 # magnetic pole, 3 # magnetic pole and 4 # pole span P between magnetic pole 1-2 , P 3-4 =(M+1/2) τ, magnetic pole thickness b and coil thickness sum equal polar moment, 2 # magnetic pole and 3 # pole center is apart from P 2-3 =(K+1/4) τ-b, M, K are any positive integer, and K > M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010287564.XA CN102410000B (en) | 2010-09-20 | 2010-09-20 | Static balance permanent magnetic stepper walking beam oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010287564.XA CN102410000B (en) | 2010-09-20 | 2010-09-20 | Static balance permanent magnetic stepper walking beam oil pumping machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410000A CN102410000A (en) | 2012-04-11 |
| CN102410000B true CN102410000B (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010287564.XA Expired - Fee Related CN102410000B (en) | 2010-09-20 | 2010-09-20 | Static balance permanent magnetic stepper walking beam oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410000B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327943B (en) * | 2020-11-10 | 2022-05-27 | 中国科学院长春光学精密机械与物理研究所 | Method and system for positioning azimuth axis and calculating counterweight of airborne photoelectric platform of heavy-weight motor |
Citations (6)
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|---|---|---|---|---|
| CN2523948Y (en) * | 2002-01-08 | 2002-12-04 | 刘兴仁 | Oil sucker driven by linear motor |
| CN2533261Y (en) * | 2001-05-22 | 2003-01-29 | 肖峰 | Long-stroke low frequency energy-saving pumping unit |
| CN1563719A (en) * | 2004-04-09 | 2005-01-12 | 周小稀 | Linear dynamo pumping unit with built-in stator |
| CN2773309Y (en) * | 2004-05-11 | 2006-04-19 | 陈天为 | Intelligent linear beam pumping unit |
| CN2858943Y (en) * | 2005-09-22 | 2007-01-17 | 陈德义 | Differential balance pressure oil pump |
| CN101050765A (en) * | 2006-08-10 | 2007-10-10 | 纪雪冬 | High power oil-submersible linear permanent magnetic step motor plunger pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287088C (en) * | 2001-02-08 | 2006-11-29 | 杨崇恩 | Electromagnetic pumping unit |
| AU2009244607B2 (en) * | 2008-05-06 | 2013-10-17 | Fmc Technologies, Inc. | Pump with magnetic bearings |
-
2010
- 2010-09-20 CN CN201010287564.XA patent/CN102410000B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533261Y (en) * | 2001-05-22 | 2003-01-29 | 肖峰 | Long-stroke low frequency energy-saving pumping unit |
| CN2523948Y (en) * | 2002-01-08 | 2002-12-04 | 刘兴仁 | Oil sucker driven by linear motor |
| CN1563719A (en) * | 2004-04-09 | 2005-01-12 | 周小稀 | Linear dynamo pumping unit with built-in stator |
| CN2773309Y (en) * | 2004-05-11 | 2006-04-19 | 陈天为 | Intelligent linear beam pumping unit |
| CN2858943Y (en) * | 2005-09-22 | 2007-01-17 | 陈德义 | Differential balance pressure oil pump |
| CN101050765A (en) * | 2006-08-10 | 2007-10-10 | 纪雪冬 | High power oil-submersible linear permanent magnetic step motor plunger pump |
Non-Patent Citations (2)
| Title |
|---|
| 吴晓溪等.直线步进电机设计中齿槽尺寸关系的确定.《微电机》.2005,第38卷(第5期),23-24. |
| 直线步进电机设计中齿槽尺寸关系的确定;吴晓溪等;《微电机》;20051231;第38卷(第5期);23-24 * |
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| Publication number | Publication date |
|---|---|
| CN102410000A (en) | 2012-04-11 |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 830000 the Xinjiang Uygur Autonomous Region Karamay HuiFu home building C7 No. 21 Patentee after: Xinjiang Union Energy Technology Co., Ltd. Address before: 124010 Panshan County, Liaoning, Panjin economic and Technological Development Zone Patentee before: Liaoning Haotiancheng Intelligent System Co., Ltd. |
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Effective date of registration: 20200413 Address after: 834099 No.85, Nanxin Road, Karamay City, Xinjiang Uygur Autonomous Region Patentee after: KELAMAYI BORUI TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 830000 the Xinjiang Uygur Autonomous Region Karamay HuiFu home building C7 No. 21 Patentee before: Xinjiang Union Energy Technology Co., Ltd. |
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Granted publication date: 20140820 Termination date: 20200920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |