CN1683791A - Directly driving screw pump device - Google Patents
Directly driving screw pump device Download PDFInfo
- Publication number
- CN1683791A CN1683791A CN 200510042122 CN200510042122A CN1683791A CN 1683791 A CN1683791 A CN 1683791A CN 200510042122 CN200510042122 CN 200510042122 CN 200510042122 A CN200510042122 A CN 200510042122A CN 1683791 A CN1683791 A CN 1683791A
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- CN
- China
- Prior art keywords
- polished rod
- screw pump
- slowspeed machine
- shaft
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Rotary Pumps (AREA)
Abstract
The directly driven screw pump device consists of polished rod, shaft coupler, low speed motor, motor controller, fixing seat and screw pump body. It features the hollow low speed motor shaft penetrating through the polished rod to connect integrally with the polished rod; the polished rod penetrating through the central hole in the fixing seat to connect to the shaft of screw pump in well; the low speed motor fixed on the fixing seat; the fixing seat fixed on the well head through support; and coaxiality of the polished rod, the low speed motor and the fixing seat with the well head.
Description
One, technical field
The present invention relates to a kind of oil production equipment, is a kind of screw pump device of direct driving specifically.
Two, background technique
In existing screw-pump oil-extraction equipment, the screw pump power system is to adopt normal asynchronous through belt transmission, drives the bevel type gear speed reducer, is driven the stock of well inner screw pump at last by speed reducer.This structure has three big defectives: the one, and there are mechanical loss in belt transmission and gear reduction box, generally account for about 15% of screw pump air horsepower; The 2nd, the driving hollow shaft in the gear-box needs to solve the motive sealing problem of lubricant oil in rotation, belt transmission is arranged in addition, this structure driving gear is on one side, when polished rod needs bigger moment of torsion (for example moment of torsion surpasses 1500Nm), and monolateral driving gear can produce the side moment of torsion in deceleration box, and excessive side moment of torsion can damage deceleration box.Existing in addition screw-pump oil-extraction equipment volume is big, weight is big.
Three, summary of the invention
The purpose of this invention is to provide a kind of direct drive screw pump-unit, overcome above-mentioned the deficiencies in the prior art, provide a kind of that directly drive with slowspeed machine, volume is little, the low power consumption screw-pump oil-extraction equipment of in light weight, cancellation belt transmission and speed change gear.
Technical solution of the present invention realizes in the following manner:
A kind of direct drive screw pump-unit, by polished rod, shaft joint, slowspeed machine, electric machine controller, fixed base, the spiral pump housing is formed, it is characterized in that the slowspeed machine axle is made as hollow shaft, pass polished rod, be fixed as one by shaft joint and polished rod, polished rod passes the fixed base center hole, link to each other with the screw pump pump shaft of down-hole, slowspeed machine also is fixed on the fixed base, fixed base is by being supported and fixed on well head, polished rod, slowspeed machine, the same center line of fixed base three's center line and well head, this apparatus structure is simple, reduce reactive loss, improved the system effectiveness of screw pump.
Electric machine controller is located at the inside at slowspeed machine terminal box place, adopts and the supporting controller of slowspeed machine.
Shaft joint is by set plane, slowspeed machine axle two ends connecting shaft seat, the bolt hole on connecting shaft seat both sides and slips are formed, slips is established spill, inner concave is provided with numb line, two slips are to being buckled on the polished rod, be fixed together by connecting shaft seat and motor shaft with bolt and nut, also can adopt embedded slips that motor shaft and polished rod are linked together.
The present invention's advantage compared with prior art is: belt and the gear graduation driving mechanism of having cancelled existing screw pump complexity, the leakage of oil problem, loss problem, the maintenance problem that are produced have thus been eliminated, improved system effectiveness and reliability, dwindled volume, reduced cost for oil production.
Four, description of drawings
Fig. 1 is a structural representation of the present invention;
Five, embodiment
As shown in Figure 1, fixed base 5 is basic mounting base, and slowspeed machine 3 is installed on the fixed base 5, and electric machine controller is directly installed on slowspeed machine 3 inside, and the output line of electric machine controller is connected with the inlet wire of slowspeed machine 3, and the electric machine controller inlet wire links to each other with electrical network.Polished rod 1 passes the hollow shaft and fixed base 5 centers of slowspeed machine 3, polished rod 1 is fixed together by the hollow shaft of shaft joint 2 with slowspeed machine 3, the lower end is connected with the screw rod pump housing 6, the upper end with link together by shaft joint 1 output shaft with slowspeed machine 3, the screw rod pump housing 6 is in device bottom.
The rotating shaft of slowspeed machine 3 is a hollow-core construction, vertical being placed on the fixed base 5.Electric machine controller and slowspeed machine 3 supporting uses, slowspeed machine 3 is exported lower rotating speed under the control of electric machine controller 1, to adapt to the requirement of direct drive screw pump.
Slowspeed machine is lower because of rotating speed, direct drive screw pump work, thereby can cancel belt transmission and speed change gear, the output speed of motor controller controls motor is to adapt to the needs of screw pump speed change.With shaft joint motor and polished rod are linked together, the output torque of slowspeed machine is passed to screw pump, carry out oil extraction operation.When overhauling, pull down fixed card, be about to slowspeed machine and separate with polished rod Deng needs.
Claims (3)
1, a kind of direct drive screw pump-unit, form by polished rod, shaft joint, slowspeed machine, electric machine controller, fixed base, the screw rod pump housing, it is characterized in that the slowspeed machine axle is made as hollow shaft, pass polished rod, be fixed as one by shaft joint and polished rod, polished rod passes the fixed base center hole and links to each other with the screw pump pump shaft of down-hole, and slowspeed machine also is fixed on the fixed base, center line and the well head same center line of fixed base by being supported and fixed on well head, polished rod, slowspeed machine, fixed base three.
2, direct drive screw pump-unit according to claim 1 is characterized in that electric machine controller is located at the inside at slowspeed machine terminal box place, adopts and the supporting controller of slowspeed machine.
3, according to the described direct drive screw pump-unit of claim 1, it is characterized in that shaft joint is by set plane, slowspeed machine axle two ends connecting shaft seat, the bolt hole on connecting shaft seat both sides and slips are formed, slips is established spill, inner concave is provided with numb line, two slips are fixed together by connecting shaft seat and motor shaft with bolt and nut to being buckled on the polished rod, also can adopt embedded slips that motor shaft and polished rod are linked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510042122 CN1683791A (en) | 2005-03-02 | 2005-03-02 | Directly driving screw pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510042122 CN1683791A (en) | 2005-03-02 | 2005-03-02 | Directly driving screw pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1683791A true CN1683791A (en) | 2005-10-19 |
Family
ID=35263239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510042122 Pending CN1683791A (en) | 2005-03-02 | 2005-03-02 | Directly driving screw pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1683791A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017212A1 (en) * | 2006-08-04 | 2008-02-14 | Jun Liu | A braking controller of a three-phase permanent magnetic brushless dc motor for directly driving a screw pump |
| WO2008017211A1 (en) * | 2006-08-04 | 2008-02-14 | Jun Liu | A surface motor direct-drive sucker-rod screw pump device |
| CN100383363C (en) * | 2006-08-08 | 2008-04-23 | 大庆油田有限责任公司 | Direct ground driving gear of screw pump |
| CN100399678C (en) * | 2006-08-08 | 2008-07-02 | 大庆油田有限责任公司 | Hollow shaft motor for direct-driving moyno pump |
| CN102255424A (en) * | 2011-07-21 | 2011-11-23 | 浙江西子富沃德电机有限公司 | Ground direct drive permanent magnet synchronous motor of screw pump |
| CN105065258A (en) * | 2015-07-16 | 2015-11-18 | 王海燕 | Intelligent monitoring and remote controlling integrated device for direct drive screw pump well |
-
2005
- 2005-03-02 CN CN 200510042122 patent/CN1683791A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017212A1 (en) * | 2006-08-04 | 2008-02-14 | Jun Liu | A braking controller of a three-phase permanent magnetic brushless dc motor for directly driving a screw pump |
| WO2008017211A1 (en) * | 2006-08-04 | 2008-02-14 | Jun Liu | A surface motor direct-drive sucker-rod screw pump device |
| EP2053245A1 (en) * | 2006-08-04 | 2009-04-29 | Jun Liu | A surface motor direct-drive sucker-rod screw pump device |
| US8283879B2 (en) | 2006-08-04 | 2012-10-09 | Millennium Oilflow Systems & Technology Inc. | Braking controller of a three-phase permanent magnetic brushless DC motor for directly driving a screw pump |
| US8702400B2 (en) | 2006-08-04 | 2014-04-22 | Millennium Oilflow Systems & Technology Inc. | Surface motor direct-drive sucker-rod screw pump device |
| EP2053245A4 (en) * | 2006-08-04 | 2014-12-17 | Jun Liu | A surface motor direct-drive sucker-rod screw pump device |
| US9059606B2 (en) | 2006-08-04 | 2015-06-16 | Millennium Oiflow Systems & Technology Inc. | Surface motor direct-drive sucker-rod screw pump device |
| CN100383363C (en) * | 2006-08-08 | 2008-04-23 | 大庆油田有限责任公司 | Direct ground driving gear of screw pump |
| CN100399678C (en) * | 2006-08-08 | 2008-07-02 | 大庆油田有限责任公司 | Hollow shaft motor for direct-driving moyno pump |
| CN102255424A (en) * | 2011-07-21 | 2011-11-23 | 浙江西子富沃德电机有限公司 | Ground direct drive permanent magnet synchronous motor of screw pump |
| CN105065258A (en) * | 2015-07-16 | 2015-11-18 | 王海燕 | Intelligent monitoring and remote controlling integrated device for direct drive screw pump well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |