CN2850115Y - Direct driven screw pump motor - Google Patents
Direct driven screw pump motor Download PDFInfo
- Publication number
- CN2850115Y CN2850115Y CN 200520142516 CN200520142516U CN2850115Y CN 2850115 Y CN2850115 Y CN 2850115Y CN 200520142516 CN200520142516 CN 200520142516 CN 200520142516 U CN200520142516 U CN 200520142516U CN 2850115 Y CN2850115 Y CN 2850115Y
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- motor
- screw pump
- bearing
- end cover
- utility
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Abstract
The utility model relates to a direct driving screw pump motor, which can be used as a direct driving motor for a screw pump on the ground of an oil field. The utility model is mainly composed of a hollow shaft, a rotor iron core, a magnetic steel, a start strip, a stator iron core, a stator coil, a machine base, an upper end cover, a lower end cover, an upper bearing, a lower bearing group, etc., wherein the lower end cover of the motor is directly connected with a base of an oil production well, so that the motor is arranged vertically. The motor adopts the structures of a hollow shaft and an upper shaft extension; a polished rod of the screw pump passes through the hollow shaft of the motor and is connected with the shaft extension of the motor, so that the output torque of the motor can be directly transmitted to a rotor of the screw pump so as to achieve the goal of direct driving. The utility model can long-term run with low speed and large torque, and simultaneously has the characteristics of large starting torque, high efficiency, convenient speed regulation, capability of soft start and soft stop, strong reverse rotation stop ability, little vibration, small size, light weight, reliability, durability, wide application range, etc.
Description
Affiliated technical field
The utility model relates to a kind of screw-pump oil-extraction equipment motor of oil production equipment motor, particularly a kind of direct driving.
Background technology
In existing screw-pump oil-extraction equipment, the screw pump drive motors generally adopts horizontal positioned, and motor is a normal asynchronous, and Motor torque slows down through belt pulley, bevel type gear reduction box, drive the screw pump polished rod by reduction box again, by polished rod transmission of torque is given the rotor of subsurface progressive cavity at last.This structure has complex structure, floor space is big, efficient is low, the ginseng difficulty is transferred in gear reduction box leakage of oil, speed change, maintenance capacity is big, labour intensity is big, start and stop that vibrations are big, the screw pump serious wear, need add the brake apparatus that reverses in addition, can not be applicable to defective such as special occasions needs.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of screw pump motor of direct driving has been proposed, this motor is directly vertical to be installed on the pedestal of producing well, and the polished rod of motor shaft and screw pump links together, and the motor output torque is directly passed to screw pump rotor.I had once invented " a kind of direct-drive intelligent driving unit on screw pump " for this reason, application number: 200520142435.6, the utility model is the supporting with it direct drive motors of screw pump, this motor can directly be exported the power of the slow-speed of revolution, high pulling torque under the control of controller, satisfy the needs of screw pump oil production.
Technical solution of the present utility model is: the direct screw pump motor that drives, main components has hollow shaft, rotor core, magnet steel, trip bar, stator core, stator coil, support, upper end cover, bottom end cover, upper bearing (metal), lower bearing group etc., wherein, hollow shaft, rotor core, magnet steel, trip bar, be the rotating part of motor, all the other are the stationary part of motor.Being connected of hollow shaft, support, upper end cover, bottom end cover, upper bearing (metal), lower bearing group, it is inner and can turn round relatively to have guaranteed that rotor partly is in stationary part.When feeding electric energy under the control of coil of stator of motor at controller, in stator core, form rotating magnetic field, the formed magnetic field interaction of electric current in this magnetic field and epitrochanterian magnet steel magnetic field or the trip bar makes motor produce torque, drives screw pump work.Simultaneously; motor in soft start on request under the control of its controller, soft stop, discontinuous operation, by the speed running of setting, on demand adjust the screw pump rotating speed, when screw pump is shut down its rotor counter-rotating; motor is in the dynamic brake state; overcome the counter-rotating torque of screw pump rotor; and shed the torque that the screw pump polished rod is accumulated gradually; prevent that screw pump polished rod counter-rotating from taking off mouth, the resistive torque when reducing screw pump and starting next time.
The utility model advantage compared with prior art is: this motor can directly be given screw pump with the output transmission of torque, belt speed reduction gearing, gear box speed reduction gearing and the anti-reverse brake mechanism of existing screw pump oil pumper complexity have been saved, dwindled volume, can improve system effectiveness 30%～60%, reduce cost for oil production, removed the worry of gear reduction box leakage of oil from.The utility model can be realized online infinitely variable speeds intelligence accent ginseng, again need not manually change the good fortune hardship that the belt pulley speed change transfers ginseng to be brought repeatedly, has significantly reduced working strength of workers, has improved the utilization rate of equipment.The utility model combines with controller can realize soft start, soft stop, counter-rotating braking, discontinuous operation, speed change work, help reducing the wearing and tearing of screw pump parts, prevent that screw rod reversing from taking off mouth, reduce the wearing and tearing and the vibration of screw pump, prolong the useful life of screw pump.The utility model combines with controller can realize that various parameters show that the handled easily personnel understand the oil well working condition, can remote monitor, realize adopting the intellectuality of management.The utility model volume is little, in light weight, compact conformation, floor space are little, applicable to the needs of special occasions such as offshore work platform.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Embodiment
As shown in Figure 1, stator coil 4 is installed in the stator core 5, and stator core 5 is installed in the stationary part of the inside composition motor of support 6; Magnet steel 8, trip bar 9 are installed in the rotor core 7, and hollow shaft 1 is enclosed within the rotor core 7 inner rotor portions that form motor, and the rotor portion of motor is in the stationary part middle part of motor, leaves air-gap between the two.Be with upper bearing (metal) 2 in the upper end of hollow shaft 1, be with the lower bearing group in the lower end of hollow shaft 1, the lower bearing group adds a radial ball bearing 11 by a thrust bearing 10 and forms, thrust bearing 10 is used for bearing the weight of screw pump rotor part, radial ball bearing 11 is used for guaranteeing that with upper bearing (metal) 2 radial clearance of electric machine rotor is even, motor can be run well, and the output shaft extension of motor is in the upper end of hollow shaft 1 so that with being connected of screw pump polished rod; The big end of upper end cover 3 is a flange arrangement, has seam to link to each other with support 6 on it, and small end is that bearing chamber cooperates installation with the outer ring of upper bearing (metal) 2, and upper end cover 3 is in the top of motor; Bottom end cover 12 has two adpting flanges and a bearing chamber group mating surface, wherein the upper flange seam links to each other with support 6, the lower flange seam links to each other with well head pedestal that will be supporting, its bearing chamber group mating surface cooperates installation with the bearing outer ring of thrust bearing 10, radial ball bearing 11, and bottom end cover 12 is in motor bottom.
The utility model is on screw pump oil well during actual installation, the bottom end cover 12 and the derrick pedestal (packing) of motor link together, keep the vertical installation of motor, motor adopts hollow shaft and last shaft extension structure, the polished rod of screw pump passes motor-hollow axle 1, the shaft extension of motor-hollow axle 1 and the polished rod of screw pump are linked together with clip in the upper end, the motor output torque can be directly passed to the screw pump rotor of down-hole.In addition, motor also needs to install additional sealing device, oil well is sealed and prevent that rainwater from entering motor internal.According to the needs of different motor form and producing well situation, in the utility model, magnet steel 8, trip bar 9 can need simultaneously, also can only need one of them, and the thrust bearing 10 of lower bearing group and radial ball bearing 11 also can replace with a radial thrust bearing.
The utility model is as direct drive unit, require its low-speed big operation for a long time, it is big also should to possess detent torque simultaneously, the efficient height, speed governing is convenient, the energy soft start, the energy soft stop, the reverting system kinetic force is strong, shake little, volume is little, in light weight, characteristics such as reliability and durability, the motor of special recommendation is a dc brushless motor for this reason, the motor that comparatively is fit to also has permagnetic synchronous motor in addition, switched reluctance machines, torque motor, asynchronous motor supplied with variable frequency, dc speed-regulating motor, electromagnetic adjustable speed motor, variable pole adjustable speed motor etc., when motor is a dc brushless motor, switched reluctance machines, during torque motor, also should install detecting apparatus for rotor position additional at motor internal.
Claims (1)
- The direct screw pump motor of Qu Donging, main components has hollow shaft (1), upper bearing (metal) (2), upper end cover (3), stator coil (4), stator core (5), support (6), rotor core (7), magnet steel (8), trip bar (9), bottom end cover (12), the lower bearing group, it is characterized in that: motor adopts goes up the shaft extension structure, the lower bearing group is made up of a thrust bearing (10) and a radial ball bearing (11), bottom end cover (12) has two adpting flanges and a bearing chamber group mating surface, wherein the upper flange seam links to each other with support (6), the lower flange seam is connected with supporting well head pedestal, and its bearing chamber group mating surface cooperates installation with the bearing outer ring of thrust bearing (10) and radial ball bearing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142516 CN2850115Y (en) | 2005-12-05 | 2005-12-05 | Direct driven screw pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142516 CN2850115Y (en) | 2005-12-05 | 2005-12-05 | Direct driven screw pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850115Y true CN2850115Y (en) | 2006-12-20 |
Family
ID=37522585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142516 Expired - Fee Related CN2850115Y (en) | 2005-12-05 | 2005-12-05 | Direct driven screw pump motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850115Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844513A (en) * | 2010-05-25 | 2010-09-29 | 上海中科深江电动车辆有限公司 | Duplex bearing power switching device |
| CN102025208A (en) * | 2010-12-09 | 2011-04-20 | 无锡华天电气科技有限公司 | Motor |
| CN102290889A (en) * | 2011-07-30 | 2011-12-21 | 陈帮明 | Hollow rotor shaft mechanism of motor |
| CN102347677A (en) * | 2010-07-30 | 2012-02-08 | 浙江三花股份有限公司 | Direct current brushless motor and draining pump |
| CN102400912A (en) * | 2010-09-17 | 2012-04-04 | 深圳市汇川技术股份有限公司 | Shutdown braking system and method for screw pump |
-
2005
- 2005-12-05 CN CN 200520142516 patent/CN2850115Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844513A (en) * | 2010-05-25 | 2010-09-29 | 上海中科深江电动车辆有限公司 | Duplex bearing power switching device |
| CN102347677A (en) * | 2010-07-30 | 2012-02-08 | 浙江三花股份有限公司 | Direct current brushless motor and draining pump |
| CN102347677B (en) * | 2010-07-30 | 2014-02-12 | 浙江三花股份有限公司 | Direct current brushless motor and draining pump |
| CN102400912A (en) * | 2010-09-17 | 2012-04-04 | 深圳市汇川技术股份有限公司 | Shutdown braking system and method for screw pump |
| CN102400912B (en) * | 2010-09-17 | 2014-12-24 | 深圳市汇川技术股份有限公司 | Shutdown braking system and method for screw pump |
| CN102025208A (en) * | 2010-12-09 | 2011-04-20 | 无锡华天电气科技有限公司 | Motor |
| CN102290889A (en) * | 2011-07-30 | 2011-12-21 | 陈帮明 | Hollow rotor shaft mechanism of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20121205 |