CN107829928A - Electric oil submerged screw pump - Google Patents
Electric oil submerged screw pump Download PDFInfo
- Publication number
- CN107829928A CN107829928A CN201711263183.6A CN201711263183A CN107829928A CN 107829928 A CN107829928 A CN 107829928A CN 201711263183 A CN201711263183 A CN 201711263183A CN 107829928 A CN107829928 A CN 107829928A
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- China
- Prior art keywords
- screw pump
- bearing
- electric oil
- output shaft
- gear
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Retarders (AREA)
Abstract
The present invention relates to electric oil submerged screw pump technical field, it is related to electric oil submerged screw pump.Electric oil submerged screw pump includes latent oil decelerator, motor, protector, flexible axle and the screw pump body being sequentially connected；Latent oil decelerator includes housing, power input shaft and power output shaft；Power input shaft end is provided with sun gear, and power output shaft end set has multiple planetary gears engaged with sun gear, and inner walls are provided with the gear ring engaged with planetary gear.Reducing gear is completed by planetary gear, wherein planetary output shaft and input shaft are conllinear, radial structure is compact, small volume, large carrying capacity, transmission efficiency is high, and gearratio is big, the ability of stable movement, shock resistance and vibration is strong, realizes the functional requirement of small size transmitting large torque.
Description
Technical field
The present invention relates to electric oil submerged screw pump technical field, in particular to electric oil submerged screw pump.
Background technology
Electric oil submerged screw pump is a kind of new mechanical oil production system.The system had both played ground driving screw pump sheet
Physical efficiency be used for insert pump and electric submersible pump can not extraction heavy oil wells, the uniqueness containing husky well and stripper well and middle and later periods water dependent well
A little, strong point of the electric submersible pump without using sucker rod while has been drawn again, and screw pump sheet is directly driven in underground using submersible electric machine with oil
Body, it is a kind of new oil production equipment.
Because latent oil reductor output torque is big, rotating speed is low, input speed is high in electric oil submerged screw pump oil extraction system,
And because screw pump body is placed in sleeve pipe, and the radial dimension that cannula cavity can accommodate is limited, therefore it is required that using biography
Dynamic ratio is big, decelerator small volume, and the decelerator that moment of torsion is big.The latent oil decelerator used in current industry Oil/gas Well field is most
Small external diameter is 4.25 inches, and nominal torque is 512 ppfs.It is raw in most of land Oil/gas Well especially coal bed gas well
It is mostly 5.5 inches to produce casing size (external diameter), and internal diameter differs according to sleeve pipe pound level different size, with common 17# (i.e. 17 pounds/
Foot) sleeve pipe citing, its latus rectum is 4.767 inches.4.25 inches of decelerators with cause electric submersible screw pump main body system with
Annular space size between production casing is excessively narrow and small, the case that motor leading cable fails at decelerator in installation process of going into the well
It is relatively common.
Therefore it provides to turn into those skilled in the art to be solved for a kind of big electric oil submerged screw pump of small volume moment of torsion
Important technological problems.
The content of the invention
It is an object of the invention to provide a kind of electric oil submerged screw pump, to alleviate electric oil submerged screw pump in the prior art
The technical problem that size is big, moment of torsion is small.
In a first aspect, the embodiments of the invention provide a kind of electric oil submerged screw pump, including the latent oil being sequentially connected is slowed down
Device, motor, protector, flexible axle and screw pump body；
The latent oil decelerator includes housing, power input shaft and power output shaft；
The power input shaft end is provided with sun gear, and the power output shaft end set has the multiple and sun
The planetary gear of engagement is taken turns, the inner walls are provided with the gear ring engaged with the planetary gear.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, on
It is quadrupole motor to state motor；
Lubricating oil and insulating oil are provided with the protector.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, on
The external diameter of housing is stated between 3.9-4.1 inches.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein, on
The external diameter for stating housing is 4 inches.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, on
The setting number for stating planetary gear is 4.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, on
The no-load voltage ratio of planetary gear and the sun gear is stated between 4.3-4.9.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, on
The no-load voltage ratio for stating planetary gear and the sun gear is 4.72.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein, on
The nominal torque for stating power output shaft is not less than 750 Ns of rice.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 8th of first aspect kind, wherein, on
State and conical bearing is arranged with power input shaft and the power output shaft, the inner walls are provided with bearing block；
The conical bearing includes bearing outer ring, bearing inner race and taper roller；
The bearing outer ring axial end portion is provided with bearing retainer, and through hole, the bearing are provided with the bearing retainer
Screwed hole is provided with seat, the bearing retainer is connected by the cooperation of screw element and screwed hole and the bearing block, with regulation
The pretightning force of the taper roller.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 9th of first aspect kind, wherein, on
State and the drive division contacted with the bearing outer ring and the adjustment portion contacted with the bearing block are provided with bearing retainer, the drive
Dynamic portion is used for the pretightning force for adjusting the taper roller, and the drive division is set with the adjustment portion in angle.
Beneficial effect：
The embodiments of the invention provide a kind of electric oil submerged screw pump, including be sequentially connected latent oil decelerator, motor, guarantor
Protect device, flexible axle and screw pump body；Latent oil decelerator includes housing, power input shaft and power output shaft；Power input shaft
End set has sun gear, and power output shaft end set has multiple planetary gears engaged with sun gear, and inner walls are provided with
The gear ring engaged with planetary gear.Reducing gear is completed by planetary gear, wherein planetary output shaft and input shaft are conllinear,
Radial structure is compact, small volume, large carrying capacity, and transmission efficiency is high, and gearratio is big, stable movement, the energy of shock resistance and vibration
Power is strong, realizes the functional requirement of small size transmitting large torque.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of electric oil submerged screw pump provided in an embodiment of the present invention；
Fig. 2 is the overall structure diagram of latent oil decelerator in electric oil submerged screw pump provided in an embodiment of the present invention；
Fig. 3 is the structural representation of sun gear and planetary gear in electric oil submerged screw pump provided in an embodiment of the present invention；
Fig. 4 is the structural representation of conical bearing in electric oil submerged screw pump provided in an embodiment of the present invention；
Fig. 5 is the structural representation of Fig. 3 middle (center) bearing supports.
Icon：100- housings；110- gear rings；120- bearing blocks；121- screwed holes；200- power input shafts；
210- sun gears；300- power output shafts；310- planetary gears；400- conical bearings；410- bearing outer rings；420- bearings
Inner ring；430- taper rollers；440- bearing retainers；441- through holes；442- drive divisions；443- adjustment portions；450- screw threads
Part；460- pretightning force pads；500- motors；600- protectors；700- flexible axles；800- screw pump bodies.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The present invention is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
With reference to shown in figure 1- Fig. 5：
The embodiments of the invention provide a kind of electric oil submerged screw pump, including latent oil decelerator, the motor being sequentially connected
500th, protector 600, flexible axle 700 and screw pump body 800；Latent oil decelerator includes housing 100, the and of power input shaft 200
Power output shaft 300；The end set of power input shaft 200 has a sun gear 210, the end set of power output shaft 300 have it is multiple with
The planetary gear 310 that sun gear 210 engages, the inwall of housing 100 are provided with the gear ring 110 engaged with planetary gear 310.
The embodiments of the invention provide a kind of electric oil submerged screw pump, including latent oil decelerator, the motor being sequentially connected
500th, protector 600, flexible axle 700 and screw pump body 800；Latent oil decelerator includes housing 100, the and of power input shaft 200
Power output shaft 300；The end set of power input shaft 200 has a sun gear 210, the end set of power output shaft 300 have it is multiple with
The planetary gear 310 that sun gear 210 engages, the inwall of housing 100 are provided with the gear ring 110 engaged with planetary gear 310.Pass through planet tooth
Wheel completes reducing gear, wherein planetary output shaft and input shaft are conllinear, radial structure is compact, small volume, bearing capacity
Greatly, transmission efficiency is high, and gearratio is big, stable movement, and the ability of shock resistance and vibration is strong, realizes small size transmitting large torque
Functional requirement.
The effect of wherein latent oil decelerator is to need the rotation deceleration that motor 500 exports for screw pump body 800
Rotating speed less than 300RPM
Motor 500：Drive component part, convert electrical energy into rotation, corresponding rotating speed.
Latent oil decelerator：The rotation of motor 500 is slowed down and is less than 300RPM rotating speeds for what screw pump body 800 needed.
Protector 600：Inside is full of insulating oil and lubricating oil, for protecting motor 500 and decelerator, and provides motor
500 and decelerator need lubrication and cooling.
Flexible axle 700 and suction inlet：There is provided with one heart to rotate protector 600 and connect with the eccentric rotary of screw pump body 800
Connect, while the suction inlet of pump is provided.
Screw pump body 800：Downhole crude is given rise to the pump on ground.
In the alternative of the present embodiment, motor 500 is quadrupole motor 500；Be provided with protector 600 lubricating oil and absolutely
Edge oil.
The current electric oil submerged screw pump of gas industries is using two-pole machine 500, that is, feelings of being powered at 50 hertz
Under condition, rotating speed 3000RPM, then by the speed reducing ratio of decelerator, rotating speed is reduced to below 300RPM, therefore set in fast ratio
On meter, generally using the scheme more than 10, due to being limited by oil well casing size, it is necessary to it is designed as double reduction, every grade
For fast ratio 5 or so, therefore equipment integrally can be very complicated, and easily failure.
And the motor 500 that the present embodiment provides uses quadrupole motor 500,50 hertz are inputted, 1450RPM is exported, adds
4.72 fast ratio, is reduced to below 300RPM by rotating speed, meets user's request.Divide multi-stage speed-reducing without setting, without setting
Large velocity ratio decelerator, ensure service life of equipment, reduce the generation of failure.
In the alternative of the present embodiment, the external diameter of housing 100 is between 3.9-4.1 inches.
In the alternative of the present embodiment, the external diameter of housing 100 is 4 inches.
This is dimensionally-optimised when greatly reducing downhole system installation herein cable collide with the risk of damage.
Specifically, the external diameter of housing 100 is 4 inches, that is, 101.6 millimeters, when the latent oil decelerator of 4 diameters is put
Be not in the feelings that the jump lead of motor 500 in installation process fails at decelerator of going into the well when entering into 5.5 inches of sleeve pipe
Condition.
It is specifically, as shown in the table for the latent oil decelerator external diameter that the present embodiment provides and latent oil decelerator in the prior art
External diameter compare.
As shown above, the latent oil decelerator of 4 inches of (101.6mm) external diameters that the present embodiment provides can reserve bigger
Annular clearance, the jump lead of motor 500 is avoided in the impaired failure of latent oil decelerator stage.
And the diameter of the jump lead of motor 500 therefore can go out often in the prior art in 15mm or so in the prior art
The case of the existing jump lead of motor 500 failure.
In the alternative of the present embodiment, the setting number of planetary gear 310 is 4.
In the alternative of the present embodiment, the no-load voltage ratio of planetary gear 310 and sun gear 210 is between 4.3-4.9.
In the alternative of the present embodiment, the no-load voltage ratio of planetary gear 310 and sun gear 210 is 4.72.
In the alternative of the present embodiment, the nominal torque of power output shaft 300 is not less than 750 Ns of rice.
Specifically, using 4 planetary gears 310 and 1 sun gear 210, and the no-load voltage ratio of planetary gear 310 and sun gear 210 is
4.72, it can ensure that the nominal torque of power output shaft 300 is not less than 750 Ns of rice by such setting.Actual production process
In, the nominal torque of power output shaft 300 is up to 665 ppfs (902 Ns of rice).And maximum power output shaft in the prior art
300 nominal torques are 512 ppfs.
By taking pure water as an example, under the discharge capacity in 120 sides/day, the latent oil decelerator that the present embodiment provides can allow for pump to provide
1770 meters of pressure head.The pressure head that the decelerator of homologous series can be born under this discharge capacity in industry is 1615 meters.
In the alternative of the present embodiment, conical bearing is arranged with power input shaft 200 and power output shaft 300
400, the inwall of housing 100 is provided with bearing block 120；Conical bearing 400 includes bearing outer ring 410, bearing inner race 420 and circular cone rolling
Son 430；The axial end portion of bearing outer ring 410 is provided with bearing retainer 440, and through hole 441, bearing block are provided with bearing retainer 440
Screwed hole 121 is provided with 120, bearing retainer 440 is connected by cooperation of the screw element 450 with screwed hole 121 and bearing block 120
Connect, to adjust the pretightning force of taper roller 430.
In the alternative of the present embodiment, the drive division 442 contacted with bearing outer ring 410 is provided with bearing retainer 440
With the adjustment portion 443 contacted with bearing block 120, drive division 442 is used to adjusting the pretightning force of taper roller 430, drive division 442 with
Adjustment portion 443 is set in angle.
It should be noted that latent oil decelerator is in when in use vertical state, bearing block 120, the bearing of inside are arranged on
The axis of inner ring 420, bearing outer ring 410 and bearing retainer 440 is in vertical state, and defining upper-lower position with this state closes
System.
For taper roller 430 between bearing outer ring 410 and bearing inner race 420, bearing outer ring 410 is located at bearing block 120
On, bearing inner race 420 is set on power input shaft 200 (power output shaft 300), wherein, the axial end portion of bearing outer ring 410 is set
Bearing retainer 440 is equipped with, through hole 441 is provided with bearing retainer 440, screwed hole 121 is provided with bearing block 120, bearing is held
Support 440 is connected by cooperation of the screw element 450 with screwed hole 121 and bearing block 120, to adjust the pretightning force of taper roller 430,
Pressure of the bearing retainer 440 to bearing inner race 420 can be adjusted by the screw-in depth for adjusting screw element 450 and screwed hole 121
Change, so as to adjust the pressure of the pressure cone roller 430 of bearing outer ring 410, wherein, the function of bearing outer ring 410 is similar to voussoir, axle
Support 440 knocks in " voussoir ", and " voussoir " side is bearing block 120, and opposite side is taper roller 430, and bearing block 120 will not
Change is subjected to displacement, therefore " voussoir " meeting pressure cone roller 430 is close to power input shaft 200 (power output shaft 300), makes
Pretightning force between the two be present, when latent oil decelerator works, as long as power input shaft 200 (power output shaft 300) and circular cone
Roller 430 contacts the normal work that can ensure bearing, is not in failure phenomenon.
(part of latent oil decelerator all very littles and dived in use because the bearing capacity of bearing is too light in the prior art
Oily decelerator is vertically arranged), needle roller can not rotate, and rolling friction becomes sliding friction, so as to bearing failure.And the present invention carries
The embodiment of confession can apply pretightning force by bearing retainer 440 to taper roller 430, taper roller 430 is pressed to power defeated
Enter axle 200 (power output shaft 300), exist between taper roller 430 and power input shaft 200 (power output shaft 300) certain
Contact force, when latent oil decelerator work make, power input shaft 200 (power output shaft 300) can start to rotate, so as to drive circle
Cone bearing 400 rotates, and avoids the failure unstable wear of conical bearing 400.
Moreover, conical bearing 400, pre- next, bearing inner race 420 connects with power input shaft 200 (power output shaft 300)
Touch, make the contour of conical bearing 400 and the diameter parallel of power input shaft 200 (power output shaft 300), avoid outer ring contact to
The rigid power of axle is given, when Axial and radial caused by latent oil decelerator inner planet gear precision moves, planetary gear volume will not be given
Outer radial load.
Specifically, being provided with through hole 441 on bearing retainer 440, screwed hole 121, wherein screw thread are offered on bearing block 120
It can also be blind hole that hole 121, which can penetrate, and screw element 450 inserts from the through hole 441 on bearing retainer 440, and on bearing block 120
Screwed hole 121 connect, a part for bearing retainer 440 abuts with bearing outer ring 410, screw element 450 screw in screwed hole 121
During, screw element 450 can drive bearing retainer 440 to be moved towards bearing outer ring 410, and bearing outer ring 410 coordinates circular cone
Roller 430, when bearing outer ring 410 is inwardly oppressed, taper roller 430 can press to power input shaft 200 (power output shaft 300)
Compel, so as to realize that the pretension of conical bearing 400 works, ensure the process rotated in power input shaft 200 (power output shaft 300)
Middle conical bearing 400 being capable of normal work.
Wherein, multiple through holes 441 are offered on bearing retainer 440, multiple screwed holes 121 are offered on bearing block 120,
It during actual installation, can be required according to specific pretightning force, connect multiple through holes 441 and screwed hole 121.
The pretension step of conical bearing 400 includes：First bearing block 120 is arranged on the housing 100 of latent oil decelerator, so
A pair of conical roller bearing backrests are arranged on power input shaft 200 (power output shaft 300) afterwards, then whole power is inputted
Axle 200 (power output shaft 300) is located on bearing block 120 with a pair of conical roller bearings, finally installs bearing retainer
440, regulation pretightning force pad 460, screw element 450 (bolt) is screwed in, applies pretightning force.
Drive division 442 and adjustment portion 443, both drive division 442 and adjustment portion 443 angles are provided with bearing retainer 440
Set, the mobile drive drive division 442 of adjustment portion 443 moves, and the moving belt moving axis bearing outer-ring 410 of drive division 442 moves, and realizes
Pretension.
Specifically, being provided with drive division 442 and adjustment portion 443 on bearing retainer 440, through hole 441 is opened in adjustment portion 443
On, and drive division 442 and the axial cross section of adjustment portion 443 are in " angle steel " shape.
And start in assembling, after drive division 442 abuts with bearing outer ring 410, the lower surface of adjustment portion 443 will not be with bearing
The upper surface contact of seat 120, ensures that adjustment portion 443 can move under the drive of screw element 450, so as to drive drive division 442
Move driving bearing outer ring 410 and move generation pretightning force.
During bearing outer ring 410 reaches maximum pretightning force in the presence of drive division 442, the lower surface of adjustment portion 443
All the time will not be with the end contact of bearing block 120, avoiding the occurrence of adjustment portion 443 does not have regulated quantity, and bearing outer ring 410 does not reach also
To setting Pre strained state.
Wherein, drive division 442 and the junction round-corner transition of adjustment portion 443, avoid right angle from scratching power input shaft 200
(power output shaft 300) and bearing outer ring 410.
Specifically, if being not provided with pretightning force pad 460, when applying pretightning force, adjustment portion 443 occurs outstanding
Sky, stuck phenomenon easily occurs between adjustment portion 443 and drive division 442；Therefore between bearing retainer 440 and bearing block 120
Pretightning force pad 460 is set, and in the connection procedure of screw element 450 and screwed hole 121, pretightning force pad 460 can save bit by bit elasticity
Potential energy, and adjustment portion 443 can be supported, avoid the excessive generation skew of one end stress of adjustment portion 443 from causing drive division 442 to block
Extremely.
Also, after mounting, pretightning force pad 460 can stretching adjustment portion 443 and bearing block 120, avoid screw element 450
Loosened with screwed hole 121.
Pretightning force pad 460 can use rubber sheet gasket, elastic force pad etc. are a variety of to possess elastically-deformable pad.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. electric oil submerged screw pump, it is characterised in that including：The latent oil decelerator that is sequentially connected, motor, protector, scratch Property axle and screw pump body；The latent oil decelerator includes housing, power input shaft and power output shaft；The power input shaft end is provided with sun gear, and the power output shaft end set has multiple nibbles with the sun gear The planetary gear of conjunction, the inner walls are provided with the gear ring engaged with the planetary gear.
- 2. electric oil submerged screw pump according to claim 1, it is characterised in that the motor is quadrupole motor；Lubricating oil and insulating oil are provided with the protector.
- 3. electric oil submerged screw pump according to claim 1, it is characterised in that the external diameter of the housing is in 3.9-4.1 English Between very little.
- 4. electric oil submerged screw pump according to claim 3, it is characterised in that the external diameter of the housing is 4 inches.
- 5. electric oil submerged screw pump according to claim 1, it is characterised in that the setting number of the planetary gear is 4.
- 6. electric oil submerged screw pump according to claim 5, it is characterised in that the change of the planetary gear and the sun gear Than between 4.3-4.9.
- 7. electric oil submerged screw pump according to claim 6, it is characterised in that the change of the planetary gear and the sun gear Than for 4.72.
- 8. according to the electric oil submerged screw pump described in claim any one of 1-7, it is characterised in that the power output shaft Nominal torque is not less than 750 Ns of rice.
- 9. electric oil submerged screw pump according to claim 1, it is characterised in that the power input shaft and the power are defeated Conical bearing is arranged with shaft, the inner walls are provided with bearing block；The conical bearing includes bearing outer ring, bearing inner race and taper roller；The bearing outer ring axial end portion is provided with bearing retainer, is provided with through hole on the bearing retainer, on the bearing block Screwed hole is provided with, the bearing retainer is connected by the cooperation of screw element and screwed hole and the bearing block, with described in regulation The pretightning force of taper roller.
- 10. electric oil submerged screw pump according to claim 9, it is characterised in that be provided with the bearing retainer and institute The adjustment portion stated the drive division of bearing outer ring contact and contacted with the bearing block, the drive division are used to adjust the circular cone rolling The pretightning force of son, the drive division are set with the adjustment portion in angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263183.6A CN107829928A (en) | 2017-12-04 | 2017-12-04 | Electric oil submerged screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263183.6A CN107829928A (en) | 2017-12-04 | 2017-12-04 | Electric oil submerged screw pump |
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| Publication Number | Publication Date |
|---|---|
| CN107829928A true CN107829928A (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711263183.6A Pending CN107829928A (en) | 2017-12-04 | 2017-12-04 | Electric oil submerged screw pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2605148A (en) * | 1947-11-13 | 1952-07-29 | Nat Supply Co | Preloaded bearing cartridge assembly |
| EP1568918A2 (en) * | 2004-02-24 | 2005-08-31 | Iveco S.p.A. | Improvements to a driven-axle differential for a vehicle |
| CN101349325A (en) * | 2008-08-29 | 2009-01-21 | 丁焰 | Overlapped parallel type involute oil-submersible screw pump planetary reducer |
| EP2525109A2 (en) * | 2011-05-18 | 2012-11-21 | Scania CV AB | Device and method for a bearing |
| JP2013170656A (en) * | 2012-02-22 | 2013-09-02 | Ntn Corp | Preload adjustment structure and preload adjustment method of bearing device |
-
2017
- 2017-12-04 CN CN201711263183.6A patent/CN107829928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2605148A (en) * | 1947-11-13 | 1952-07-29 | Nat Supply Co | Preloaded bearing cartridge assembly |
| EP1568918A2 (en) * | 2004-02-24 | 2005-08-31 | Iveco S.p.A. | Improvements to a driven-axle differential for a vehicle |
| CN101349325A (en) * | 2008-08-29 | 2009-01-21 | 丁焰 | Overlapped parallel type involute oil-submersible screw pump planetary reducer |
| EP2525109A2 (en) * | 2011-05-18 | 2012-11-21 | Scania CV AB | Device and method for a bearing |
| JP2013170656A (en) * | 2012-02-22 | 2013-09-02 | Ntn Corp | Preload adjustment structure and preload adjustment method of bearing device |
Non-Patent Citations (1)
| Title |
|---|
| 代旭升: "《采用工实际操作读本》", 31 December 2012, 中国石油大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
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