CN110185417A - A kind of novel submersible electric screw pump downhole oil extraction device - Google Patents
A kind of novel submersible electric screw pump downhole oil extraction device Download PDFInfo
- Publication number
- CN110185417A CN110185417A CN201910532996.3A CN201910532996A CN110185417A CN 110185417 A CN110185417 A CN 110185417A CN 201910532996 A CN201910532996 A CN 201910532996A CN 110185417 A CN110185417 A CN 110185417A
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- bearing
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- ring
- connector
- screw
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- 238000000605 extraction Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 claims abstract description 35
- 230000001012 protector Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 5
- 239000007779 soft material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 78
- 239000010779 crude oil Substances 0.000 description 14
- 238000005299 abrasion Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- 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
-
- 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
- F04C13/001—Pumps for particular liquids
-
- 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
-
- 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
-
- 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
- F04C15/0088—Lubrication
-
- 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
- F04C15/0096—Heating; Cooling
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
-
- 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
- F04C2240/00—Components
- F04C2240/50—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of novel submersible electric screws to pump downhole oil extraction device; including permanent magnet synchronous motor, protector, connector sleeve, flexible shaft one, screw pump stator, screw pump rotor, oil pipe one, pump box cupling, flexible shaft two, bearing housing, cylinder roller bearing, tandem cylindrical roller thrust bearing, ball bearing, spring, piston, transmission shaft and oil pipe two, the permanent magnet synchronous motor is electrically connected by the control terminal on oil-submersible cable and ground；The protector is arranged on permanent magnet synchronous motor the connector sleeve and is fixed on protector, and is sleeved on the outside of the output shaft of permanent magnet synchronous motor, offers inlet hole on connector sleeve；The setting of flexible shaft one can be sequentially connected in connector sleeve, and with the output shaft of permanent magnet synchronous motor；The screw pump stator is connected on connector sleeve；Longer life expectancy of the present invention, it is compact-sized.
Description
Technical field
The present invention relates to the technical field of oil-submerged electric screw pump, adopted under specially a kind of novel submersible electric screw pump sump
Oily device.
Background technique
Submersible screw pump oil extraction device is to directly drive screw pump using underground submersible motor to take crude oil to ground adopt
Oil tech.It combines the advantages of Rodless oil extraction device, downhole electrical motor driving and screw pump, is suitable for arranging thick liquid and containing solid
Phase liquid, and it is uniform flow, steady.
There are mainly three types of structure types for submersible screw pump oil extraction at present: one is a kind of more structure shapes of domestic and international application
Formula --- submersible motor acceleration and deceleration device imparts power to subsurface progressive cavity by retarder using submersible motor and realizes that crude oil is lifted
It rises；One is directly drive screw pump using four middlebrow submersible motor；The third is directly driven using permanent magnet synchronous motor
Dynamic screw pump.Three kinds of structure types are all made of the eccentric motion that universal joint holds axial force and adjusting screw rod pump.
In application process, fault point is concentrated mainly on retarder and universal joint above-mentioned three kinds of structure type.Retarder
Interior gear is failed due to broken teeth or adhesion wear, and needle bearing ruptures on retarder planet carrier；Weld is saved on universal joint
It disengages, since axial force is excessive, causes fixing bolt fracture fixing bolt fracture.
At present when studying submersible screw pump oil extraction device, the combination replacement that will use bearing block and flexible shaft is universal
Section, still, in previous research, most of flexible shaft is only setting one, and also without studying bearing group well
Reasonable plan causes flexible shaft axial force excessive, and bearing group is easily damaged, and greatly reduces the service life of extracting device of oil, bearing group
It is used for a long time in petroleum, bearing oil expanded by heating, how to solve the problems, such as that bearing oil expansion is also this field
Thorny problem.
Summary of the invention
The purpose of the present invention is to provide a kind of novel submersible electric screws to pump downhole oil extraction device, is eliminated using flexible link
Screw pump rotor radially wobbles, and substitutes the universal joint that current submersible screw pump oil extraction device uses using bearing group to carry axial direction
Power and elimination radially wobble structure, and solution is since Joint damage causes compressor emergency shutdown status, in bearing oil expanded by heating
When, piston is mobile to expand volume.
To achieve the above object, the invention provides the following technical scheme: a kind of novel submersible electric screw pumps down-hole oil production
Device, including permanent magnet synchronous motor, flexible shaft one, screw pump, oil pipe one, flexible shaft two, bearing housing, cylinder roller bearing,
Tandem cylindrical roller thrust bearing, ball bearing, transmission shaft and oil pipe two, in which:
The permanent magnet synchronous motor is electrically connected by the control terminal on oil-submersible cable and ground, and passes through flexible shaft one and spiral shell
The connection that the rotor of bar pump can be driven；
One end of the oil pipe one is sleeved on the outlet of screw pump；
The setting of flexible shaft two can be sequentially connected in oil pipe one, and with the end of the rotor of screw pump；
The bearing housing offers the through-hole through upper and lower end face, and through-hole avoids the inner cavity of bearing housing, bearing
The lower end surface of cabinet is connected in the opening of oil pipe one, and through-hole is connected to the inner hole of oil pipe one, the bearing housing it is interior
Chamber includes the breathing space positioned at the mounting portion of front and positioned at rear portion, is open according to oil pipe one by closely to remote in the mounting portion
Sequence successively offer annular mounting groove one, annular mounting groove two and annular mounting groove three, the mounting portion and breathing space it
Between be provided with piston and elastic component, the elastic component is arranged in breathing space, and pushes piston mobile to mounting portion, thus living
Plug pushes bearing oil to be full of mounting portion, after bearing oil expanded by heating, it is mobile to breathing space to push piston, and compress bullet
Property part；
The cylinder roller bearing, tandem cylindrical roller thrust bearing and ball bearing setting are in annular mounting groove one, annular
In mounting groove two and annular mounting groove three；
The transmission shaft is fixed in cylinder roller bearing, tandem cylindrical roller thrust bearing and ball bearing, and
It can be sequentially connected with flexible shaft two, the inner hole of the tandem cylindrical roller thrust bearing, which is fixedly installed, unloads power ring, the power of unloading
Ring includes inner ring, outer ring, connector one and connector two, and the inner ring is fixed on the side of transmission shaft, the outer ring
It is fixed on tandem cylindrical roller thrust bearing inner hole, the connector one is identical with two quantity of connection, and at least
There are four settings, connector one and connector two within be evenly arranged in the lateral surface and outer ring of inner ring centered on ring center
Between side, and connector one and the alternate setting of connector two, one end of the connector one are fixed at the interior of outer ring
The position of proximal edges one, the one face ball bearing of side are leaned in hole side, and the other end of connector one is fixed at inner ring
Lateral surface leans on the position of proximal edges two, the two face cylinder roller bearing of side, one end fixed setting of the connector two
The position of proximal edges three, the three face cylinder roller bearing of side, the other end of connector two are leaned in the inner hole side of outer ring
The lateral surface for being fixed at outer ring leans on the position of proximal edges four, the four face ball bearing of side；
The opening sleeve of the oil pipe two is connected to, oil pipe two and ground on the upper end of bearing housing with through-hole
Extracting device of oil connection.
Further, the extracting device of oil further includes protector, connector sleeve, pump box cupling, and the screw pump includes screw rod
Pump rotor and screw pump stator, the protector are arranged on permanent magnet synchronous motor, and the connector sleeve is fixed at protector
On, and be sleeved on the outside of the output shaft of permanent magnet synchronous motor, inlet hole is offered on connector sleeve, the setting of flexible shaft one exists
It in connector sleeve, and can be sequentially connected with the output shaft of permanent magnet synchronous motor, the screw pump stator is connected on connector sleeve, described
Screw pump rotor setting can be sequentially connected in screw pump stator, and with flexible shaft one；One end of the oil pipe one is sleeved on spiral shell
In the opening of bar pump stator, and it is using pump box cupling that oil pipe one is fixed.
Preferably, the exit of bearing housing is arranged in the О type sealing ring four and sealing ring, for sealing bearing housing
Gap between the outlet and transmission shaft of body.
Preferably, the front and rear of the side of piston is arranged in the О type sealing ring two and О type sealing ring three, to
Gap between sealing piston side and expansion chamber medial surface.
Further, the both ends of the screw pump rotor are inserted with the end of flexible shaft one and the end of flexible shaft two respectively
It connects, and is provided with upper box cupling and lower box cupling on the both ends of screw pump rotor, to realize and the end of flexible shaft one and soft
Property axis two end be connected.
Preferably, the piston is slidably mounted in expansion chamber, and the medial surface of piston and expansion chamber seals, living
Plug is fixedly installed the hemispherical hollow convex block made of heat-resisting soft material, the elasticity on the end face of face ball bearing
Part is spring, and the bottom of expansion chamber is arranged in the spring, and pushes piston to ball bearing, bearing oil is filled full
In space between the front end face and piston end surface of bearing housing inner cavity, the bearing housing is equal on upper and lower end
Cyclic annular fixing end is set, and offers screw thread in cyclic annular fixing end lateral surface, the end of the oil pipe one and oil pipe two offers
Screw thread, and be screwed onto the cyclic annular fixing end of bearing housing.
Further, the bottom of the cushion chamber is additionally provided with spring adjustment component, and the spring adjustment component includes bottom
Ring, adjusting screw, bottom plate and О type sealing ring one, the bottom of the cushion chamber offer screw hole, and the base ring setting is buffering
The bottom of chamber, and it is concentric with screw hole, and the adjusting screw is screwed onto screw hole, and is protruded on the end in base ring and be fixedly installed
There is bottom plate, what the bottom plate loosened is contained in base ring, and the end of the spring is separable to be resisted against on bottom plate, the screw hole
Exit orifice on offer the annular groove concentric with screw hole, the О type sealing ring one is embedded in a ring groove, and end against
In the nut bottom surface of adjusting screw, the diameter of the annular groove is greater than the outer diameter of О type sealing ring one.
Further, the connector one includes fixing end one, fixing end two, attachment beam one and reinforcing rod one, the company
Fitting two includes fixing end three, fixing end four, attachment beam two and reinforcing rod two, and the fixing end one is fixed at the interior of outer ring
On the side of hole, and proximal edges one are leaned on, the fixing end two is fixed on the lateral surface of inner ring, and leans on proximal edges two
On, the attachment beam one is obliquely installed, and the low one end in position is fixed at the side of face fixing end one in fixing end two
On face one, the other end of the attachment beam one is fixed at the lower end surface of fixing end one, and the downside of attachment beam one includes position
Stress section one immediately below fixing end one and the arc stress being connect respectively with the side one of stress section one and fixing end two
Section two, the arc stress section two is bent upwards, and the upper side of attachment beam one is the plane being obliquely installed, and the upper side inclines
It tiltedly extends on the lower end surface of fixing end one and the side one of fixing end two, offers and run through on the upper side of the attachment beam one
The mounting groove of the front and back sides of attachment beam one is fixedly installed reinforcing rod one between the left and right side in the mounting groove, described
Reinforcing rod one is parallel with the extending direction of one upper side of attachment beam, and the center vertical line of reinforcing rod one and arc stress section two
Angular bisector be overlapped, the fixing end three is fixed at the inner hole side of outer ring on the position of proximal edges three, described solid
Fixed end four is fixed at the lateral surface of inner ring on the position of proximal edges four, the attachment beam two and one structure phase of attachment beam
Together, the both ends of attachment beam two are respectively fixedly disposed on the lower end surface of fixing end three and the side two of fixing end four, the side
Two face fixing ends three, the stress section one are located at the underface of fixing end three.
Further, heat dissipation grid is provided on the front and back sides of the fixing end one and fixing end three.
Compared with prior art, beneficial effects of the present invention are as follows:
The output of Surface power drive source is realized using permanent magnet synchronous motor, screw pump is directly driven and carries out crude oil suction, eliminate
Retarder.Power source is transferred to permanent magnet synchronous motor by oil-submersible cable by ground control unit, permanent magnet synchronous motor output
Power is transferred to screw pump rotor by flexible link one, and then rotor rotation is driven to carry out crude oil suction, and pressurized crude oil is logical
The through-hole for crossing bearing housing enters inside oil pipe two, finally enters surface gathering and transferring pipeline, compact-sized.Device uses bearing group
With two sections of flexible connection modes, make device axial carrying and radially wobble to eliminate to carry out respectively, axial force carrying design is in device
Position where upper end, that is, tandem cylindrical roller thrust bearing, radial force carrying design are excellent on flexible shaft one and flexible shaft two
Stress form is set in makeup, so that other components be made to be in preferable working condition, extends unit service life, specific flexible shaft
One and flexible shaft two be connected to the both ends of screw pump rotor, the radial direction to transmission shaft and permanent magnet synchronous motor can be eliminated
Power, tandem cylindrical roller thrust bearing can carry axial force, and cylinder roller bearing and ball bearing can guarantee the same of transmission shaft
Axis degree, tandem cylindrical roller thrust bearing are the carrying units of main axial force, itself can have a large amount of friction, generate
A large amount of heat, these heats can make tandem cylindrical roller thrust bearing hot-spot and the heat that may be transmitted to transmission shaft
On, because key wear position is tandem cylindrical roller thrust bearing, temperature is necessarily highest, compares and absorbs high temperature
Transmission shaft or even cylinder roller bearing and ball bearing temperature are lower, will result in transmission shaft and cylinder roller bearing and ball bearing
And the cooperation of tandem cylindrical roller thrust bearing changes, it is also possible to cause concentricity to change, further expansion abrasion, and the present invention
It is arranged and unloads power ring, there are gap between inner ring and outer rings, and tandem cylindrical roller thrust bearing heat transference efficiency is low, bearing oil
The heat can be absorbed, the outer ring after being especially heated there are enough geometric distortions, reduces tandem cylindrical roller thrust bearing
To the influence of transmission shaft after heat production, after reducing local heating, drive shaft cartridge matches Enlarging-Errors, reduces abrasion, improves the longevity
Life.
Piston is pushed using spring, bearing oil can be pushed to be full of mounting portion, ensure that cylindrical roller axis
It holds, the lubricant effect of tandem cylindrical roller thrust bearing and ball bearing, after long-time merges use, bearing oil is heated swollen
The swollen elastic force that will push piston overpowers spring, it is mobile to expansion chamber bottom, but at this point, the elastic force of spring be it is uncontrollable,
In order to which bearing lubrication to be filled in mounting portion, the elastic force needs of spring are sufficiently large, but bearing oil is in face of enough
When the spring of big elastic force, the pressure for expanding generation can not make piston fast reaction, cause the pressure of mounting portion inner shaft bearing lubrication oil
Power is excessive, and the pressure result that piston adjusts in mounting portion is poor, so having provided with convex block, convex block material is soft, high temperature resistant, in spring
Piston is pushed, when bearing oil is full of mounting portion, convex block can occupy certain space, to reduce bearing oil
The space of receiving reduces the dependence to the elastic force of spring, after bearing oil expanded by heating, overcomes convex block before this, reduces
Pressure, pusher piston is mobile, and the spring force of setting is smaller, and the backhaul of piston is fast, and adjustment is quicker, and effect is good.
The present invention is easy for installation, and operation is easy, is convenient for in-site installation application；It is suitable for exploiting viscosity height, the stream containing solid phase
Body.It can be applied to heavy oil wells, sand output well, inclined shaft, horizontal well, high-gas-contained well, wide adaptation range；Without sucker rod, eliminate because of bar
The loss of pipe abrasion bring, it is energy-saving；Cancel traditional retarder and universal joint, reduce the fault point, reduces price of complete machine cost,
Convenient for popularity application, permanent magnet synchronous motor is used；Using special carrying mechanism and flexible connection pattern, components be in compared with
Good berth state extends unit service life.
Detailed description of the invention
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is the cross-sectional view of bearing housing of the invention；
Fig. 3 is the cooperation schematic diagram of transmission shaft and pressure relief ring of the invention；
Fig. 4 is the schematic diagram of connector one of the invention；
Fig. 5 is the schematic diagram of connector two of the invention.
In figure: 1- submersible motor, 2- protector, 3- flexible shaft one, 4- screw pump stator, 5- screw pump rotor, 6- are flexible
The upper box cupling of axis two, 7-, 8- sealing ring, 9- cylinder roller bearing, 10- tandem cylindrical roller thrust bearing, 11- О type sealing ring
One, 12- spring, 13- oil pipe one, 14- piston, 15- О type sealing ring two, 16- О type sealing ring three, 17- ball bearing, 18- are passed
Box cupling, 24- connector sleeve, 25- under moving axis, 19- bearing housing, 20- О type sealing ring four, 21- oil pipe two, 22- pump box cupling, 23-
Through-hole, 26- mounting portion, the breathing space 27-, 28- annular mounting groove one, 29- annular mounting groove two, 30- annular mounting groove three, 31-
Convex block, 32- base ring, 33- adjusting screw, 34- bottom plate, 35- screw hole, 36- annular groove, 37- inner ring, 38- outer ring, 39- connector
One, 40- ring-type fixing end, 41- connector two, 42- fixing end one, 43- fixing end two, 44- attachment beam one, 45- reinforcing rod one,
46- fixing end three, 47- fixing end four, 48- attachment beam two, 49- reinforcing rod two, the side 50- one, the side 51- two, the side 52-
One, 53- stress section one, 54- arc stress section two, 55- upper side, 56- mounting groove, the side 57- three, the side 58- four, the side 59-
Face two, 60- heat dissipation grid, 61- key.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Attached drawing is please referred to, the present invention provides a kind of technical solution: a kind of novel submersible electric screw pump downhole oil extraction device,
Including permanent magnet synchronous motor 1, protector 2, connector sleeve 24, flexible shaft 1, screw pump stator 4, screw pump rotor 5, oil pipe one
13, box cupling 22, flexible shaft 26, bearing housing 19, cylinder roller bearing 9, tandem cylindrical roller thrust bearing 10, ball bearing are pumped
17, spring 12, piston 14, transmission shaft 18 and oil pipe 2 21, in which:
The permanent magnet synchronous motor 1 is electrically connected by the control terminal on oil-submersible cable and ground, the work of permanent magnet synchronous motor 1
The feature of work can remove retarder.
The protector 2 is arranged on permanent magnet synchronous motor 1, and protector 2 can protect permanent magnet synchronous motor 1.
The connector sleeve 24 is fixed on protector 2, and is sleeved on the outside of the output shaft of permanent magnet synchronous motor 1,
Inlet hole is offered on connector sleeve 24, inlet hole is having the case where negative pressure petroleum can be sucked connector sleeve 24.
The setting of flexible shaft 1 can be sequentially connected in connector sleeve 24, and with the output shaft of permanent magnet synchronous motor 1,
That is the power of permanent magnet synchronous motor 1 was directly inputted to before this on flexible shaft 1.
The screw pump stator 4 is connected on connector sleeve 24, further, screw pump stator 4 be with connector sleeve 24 and
The stationary part of permanent magnet synchronous motor 1 keeps being connected, not opposite displacement.
The setting of screw pump rotor 5 can be sequentially connected in screw pump stator 4, and with flexible shaft 1, that is to say, that
The rotary power of screw pump rotor 5 is from flexible shaft 1, rather than previous stiff shaft transmitting, the permanent magnetism in crude oil are same
When there is the resistance of crude oil, especially screw pump rotor 5 and rotate in step motor 1 and screw pump rotor 5, there are Radial resistant force,
The Radial resistant force can be transferred on permanent magnet synchronous motor 1 by the mode of previous stiff shaft transmitting, be caused to permanent magnet synchronous motor 1
Injury, and flexible shaft 1 can eliminate the Radial resistant force, protect permanent magnet synchronous motor 1.
One end of the oil pipe 1 is sleeved in the opening of screw pump stator 4, and uses pump box cupling 22 by oil pipe 1
Fixed, crude oil is entered in oil pipe 1, is conveyed.
The setting of flexible shaft 26 can be sequentially connected in oil pipe 1, and with the end of screw pump rotor 5, it is clear that soft
Property axis 26 can eliminate the Radial resistant force that screw pump rotor 5 is communicated up.
The bearing housing 19 offers the through-hole 25 through upper and lower end face, and through-hole 25 avoids the interior of bearing housing 19
Chamber, the lower end surface of bearing housing 19 are connected in the opening of oil pipe 1, and through-hole 25 is connected to the inner hole of oil pipe 1,
That is the crude oil entered in oil pipe 1 can be flowed by through-hole 25 to next structure, the quantity of certain through-hole 25
It can be designed with diameter, specific data design according to the actual situation, and the inner cavity of the bearing housing 19 includes being located at front
Mounting portion 26 and breathing space 27 positioned at rear portion, be open according to oil pipe 1 by closely to remote sequence in the mounting portion 26
Annular mounting groove 1, annular mounting groove 2 29 and annular mounting groove 3 30 are successively offered, the inner cavity of bearing housing 19 is tool
Have import, and import is to be closed, to prevent crude oil from entering in inner cavity, expansion chamber 27 to exist for bearing oil swollen
The outlet of expansion has been reserved when swollen.
The cylinder roller bearing 9, tandem cylindrical roller thrust bearing 10 and ball bearing 17 are arranged in annular mounting groove one
28, in annular mounting groove 2 29 and annular mounting groove 3 30, that is to say, that cylinder roller bearing 9, tandem cylindrical roller thrust axis
Hold 10 and ball bearing 17 be arranged in mounting portion 26, when bearing oil is injected into the inner cavity of bearing housing 19, expansion
Chamber 27 can permit the space of bearing oil expansion, and still, excessive space prevents bearing oil from full of cylindrical roller
In bearing 9, tandem cylindrical roller thrust bearing 10 and ball bearing 17, cause lubricant effect unobvious, thus to expansion chamber 27 into
One step limits, to reach the purpose of adjustment 27 size of expansion chamber, specifically, the piston 14 is slidably mounted on expansion chamber 27
It is interior, and the medial surface of piston 14 and expansion chamber 27 seals, and piston 14 is fixedly installed on the end face of face ball bearing by resistance to
Hemispherical hollow convex block 31 made of high temperature soft material, is made specifically, convex block 31 can be of high temperature resistant silica gel, is subjected to
In 200-300 DEG C of high temperature, the bottom of expansion chamber 27 is arranged in the spring 12, and pushes piston 14 to ball bearing 17, with
Bearing oil is filled out in the space between 14 end face of the front end face for being filled in 19 inner cavity of bearing housing and piston, is mainly to fill up
In mounting portion 26, spring 12 is only set originally, but the intensity of the spring 12 is difficult to control, for example, for piston
14 can push bearing oil can be full of the space between 14 end face of front end face and piston of 19 inner cavity of bearing housing, spring
12 need enough intensity, but under the intensity, bearing oil needs that there is bigger temperature difference can just overcome spring 12
Elastic force pushes piston 14 mobile, also just virtually reduces the pressure Adjustment precision in the adjustment bearing housing 19 of piston 14, increases
Convex block 31 piston 14 compress bearing oil space when, can take up the space of certain volume, with reduce need
The elastic force of spring 12 compares with for not set convex block 31, and the elastic force of spring 13 is smaller, can equally fill bearing oil
Space between 14 end face of front end face and piston of full 19 inner cavity of bearing housing, meets the purpose of lubrication, in bearing lubrication oil temperature
When degree increases, convex block 31 is that the bearing oil made of resistance to high soft material, after expansion can first flatten convex block 31, to expand
Large space achievees the purpose that release swelling stress, and when bearing oil persistently increases, piston 14 can be pushed to expansion chamber 27
Bottom, the elastic force of spring 12 is smaller, and the mobile agility of piston 14 is higher, and the pressure in bearing housing 19 is adjusted precisely, institute
The bottom for stating cushion chamber 27 is additionally provided with spring adjustment component, specifically, spring adjustment adjustable 12 bottom of spring of component is arrived
The distance of 14 bottom surface of piston, that is, adjustable piston 14 is when blocking mounting portion 26, the support force of spring 12, the branch
Support force is smaller, and piston 14 is quicker, and the spring adjustment component includes that base ring 32, adjusting screw 33, bottom plate 34 and О type are close
Seal 1, the bottom of the cushion chamber 27 offer screw hole 35, and the bottom of cushion chamber 27, and and spiral shell is arranged in the base ring 32
Hole 35 with one heart, is fixedly installed bottom plate on the end that the adjusting screw 33 is screwed onto screw hole 35, and protrudes into base ring 32
34, what the bottom plate 34 loosened is contained in base ring 32, and the end of the spring 12 is separable against on the bottom sheet 34, described
The annular groove 36 concentric with screw hole 35 is offered in the exit orifice of screw hole 35, the О type sealing ring 1 is embedded in annular groove 36
It is interior, and end is resisted against the nut bottom surface of adjusting screw 33, and the diameter of the annular groove 36 is greater than О type sealing ring 1
Outer diameter, when rotating adjusting screw 33, adjusting screw 33 can pass in and out in screw hole 35, to drive bottom plate 34 in base ring 32
Interior movement, spring 12 is against on the bottom sheet 34, when bottom plate 34 is mobile, can adjustment spring 12 appropriate stroke,
So as to adjust support force, achieve the purpose that improve 14 precision of piston, in 33 spinning in and out of adjusting screw, nut portion
О type sealing ring 1 can be compressed, to guarantee that О type sealing ring 1 can block screw hole 35, inner ring 37 and transmission shaft 18 are logical
Cross the connection of key 61.
The transmission shaft 18 is fixed at cylinder roller bearing 9, tandem cylindrical roller thrust bearing 10 and ball bearing 17,
And it can be sequentially connected with flexible shaft 26, that is to say, that the radial force that screw pump rotor 5 rotates is eliminated by flexible shaft 26, only
Only by axial force transmission to transmission shaft 18, transmission shaft 18 is arranged in tandem cylindrical roller thrust bearing 10, tandem thrust
Cylinder roller bearing 10 is used to carry the axial force, cylinder roller bearing 9 and ball bearing 17 as the coaxial of adjustment transmission shaft 18
Degree uses, and is located at the front and rear part of transmission shaft 18, and the case where transmission shaft 18 rotates, tandem cylindrical roller thrust bearing 10 is held
Main axial force is carried, a large amount of heat can be generated on tandem cylindrical roller thrust bearing 10, local temperature increases, this temperature
It is transferred to transmission shaft 18, or even is transferred to cylinder roller bearing 9 and ball bearing 17, causes cylinder roller bearing 9, tandem thrust
Cylinder roller bearing 10, ball bearing 17 and 18 temperature of transmission shaft are uneven, especially transmission shaft 18 and tandem cylindrical roller thrust axis
The temperature difference between 10 is held, there can be temperature difference between transmission shaft 18 and cylinder roller bearing 9 and ball bearing 17, these temperature
Difference easily causes the cooperation between bearing and axis to deviate, and increases abrasion, the heat that cylinder roller bearing 9 generates is most
Greatly, the heat transfer is reduced to transmission shaft 18, can greatly reduce the presence of temperature difference, the tandem cylindrical roller thrust axis
It holds 10 inner hole to be fixedly installed and unload power ring, the power of the unloading ring includes inner ring 37, outer ring 38 and connector 1 and connector two
41, the outer ring 38 is fixed on 10 inner hole of tandem cylindrical roller thrust bearing, and inner ring 37 is fixed at transmission shaft 18
On corresponding position, there are gaps between inner ring 37 and outer ring 38, between bearing oil can accommodate the gap, the connector one
39 include fixing end 1, fixing end 2 43, attachment beam 1 and reinforcing rod 1, and the connector 2 41 includes fixing end three
46, fixing end 4 47, attachment beam 2 48 and reinforcing rod 2 49, the fixing end 1 are fixed at the inner hole side of outer ring 38
On, and proximal edges 1 are leaned on, the one 50 face ball bearing 17 of side, the fixing end 2 43 is fixed at inner ring 37
On lateral surface, and in proximal edges 2 51, the 2 51 face cylinder roller bearing 9 of side, the attachment beam 1 is tilted
Setting, and the low one end in position is fixed on the side 1 of face fixing end 1 in fixing end 2 43, the company
The other end for connecing beam 1 is fixed at the lower end surface of fixing end 1, and the downside of attachment beam 1 includes being located at fixing end
Stress section 1 immediately below one 42 and the arc being connect respectively with the side 1 of stress section 1 and fixing end 2 43 by
Power section 2 54, the arc stress section 2 54 are bent upwards, and the upper side 55 of attachment beam 1 is the plane being obliquely installed, and
The upper side 55 inclination extends on the lower end surface of fixing end 1 and the side 1 of fixing end 2 43, the attachment beam 1
Upper side 55 on offer mounting groove 56 through the front and back sides of attachment beam 1, the left and right side in the mounting groove 56
Between be fixedly installed reinforcing rod 1, the reinforcing rod 1 is parallel with the extending direction of one 44 upper side of attachment beam, and
The center vertical line of reinforcing rod 1 is overlapped with the angular bisector of arc stress section 2 54, and the fixing end 3 46 is fixed at
The inner hole side of outer ring 38 is on the position of proximal edges 3 57, the 3 57 face cylinder roller bearing 9 of side, the fixing end
4 47 are fixed at the lateral surface of inner ring 37 on the position of proximal edges 4 58, the 4 58 face ball bearing 17 of side, institute
State that attachment beam 2 48 is identical as one 44 structure of attachment beam, the both ends of attachment beam 2 48 are respectively fixedly disposed under fixing end 3 46
On end face and the side of fixing end 4 47 2 59, the 2 59 face fixing end 3 46 of side, the stress section 1 is located at solid
The underface of fixed end 3 46 is fixedly installed reinforcing rod 2 49, institute between the left and right side in the mounting groove 56 of attachment beam 2 48
State that reinforcing rod 2 49 is parallel with the extending direction of 2 48 upper side of attachment beam, and the center vertical line and arc of reinforcing rod 2 49
The angular bisector of stress section 2 54 is overlapped, and is provided with heat dissipation grid on the front and back sides of the fixing end 1 and fixing end 3 46
60, the radiating efficiency of fixing end 1 and fixing end 3 46 can be improved in heat dissipation grid 60, it is pointed out here that, connector 1 and company
The quantity that fitting 2 41 is arranged can be relatively more, if 10 groups, but volume is typically small, that is to say, that by the way that company is arranged more
Fitting 1 and connector 2 41 realize connected, the observation for convenience in the present embodiment, provided with 6 groups of inner ring 37 and outer ring 38
Connector 1 and connector 2 41.
When tandem cylindrical roller thrust bearing 10 can carry main axial force, a large amount of heat can be generated, these
Heat can make 10 hot-spot of tandem cylindrical roller thrust bearing, if these heats are transferred to transmission shaft 18, can cause, transmission
Axis 18 and cylinder roller bearing 9 and ball bearing 17 and the cooperation of tandem cylindrical roller thrust bearing 10 change, and increase abrasion, drop
The low service life.Attachment beam 1 is connected by fixing end 1 and outer ring 38, is connected by fixing end 2 43 and inner ring 37, connection
Beam 1 can support the part where the side 1 of outer ring 38, and attachment beam 2 48 is solid by fixing end 3 46 and outer ring 38
Even, it is connected by fixing end four and inner ring 37, attachment beam 2 48 can support the part where the side 3 57 of outer ring 38, connection
Beam 1 and attachment beam 2 48 can be stable support outer ring 38, and because attachment beam 1 and attachment beam 2 48 are that inclination is set
It sets, the transmitting axial force that attachment beam 1 and attachment beam 2 48 can be more stable, more, after outer ring 38 is heated, inclines
The attachment beam 1 and attachment beam 2 48 being tiltedly arranged allow 38 local deformation of outer ring again, and bearing oil can be easily by interior
Between ring 37 and outer ring 38, when gap between the abundant inner ring 37 of bearing oil and outer ring 38, tandem cylindrical roller thrust
A part cracking can be transferred to bearing oil in the heat that bearing 10 generates, and especially heat dissipation grid 60 can be quick
By heat transfer in fixing end 1 and fixing end 3 46 to bearing oil, and reduce the heat that can be transmitted to inner ring 37
Amount, in this way, being limited in outer ring 38 and bearing oil by the amount of localized heat that tandem cylindrical roller thrust bearing 10 generates, greatly
Reduce the temperature difference between bearing and transmission shaft 18 greatly, caused by cooperate variation, increase abrasion, reduce the service life, outer ring 38 exists
After temperature distortion.
The small volume of connector 1 and connector 2 41, when bearing pressure, the attachment beam one that is obliquely installed
44 and attachment beam 2 48 be easy to be broken in centre, especially in bearing housing 19, and want to reduce connector 1 and connector
2 41 weight, to reduce the axial force and radial force of whole device, so, for the part for reducing weight, we are being connected
Mounting groove 56 is opened up on the upper side 55 of beam 1 and attachment beam 2 48, alleviates the weight of attachment beam 1 and attachment beam 2 48
Amount, aiming at the problem that 2 48 intensity of attachment beam 1 and attachment beam on, main there are two setting, first is, provided with arc
Shape stress section 2 54, pressure of the receiving from arc stress section 1 that the arc stress section 2 54 being bent upwards can be very much,
Second is, reinforcing rod 1 and reinforcing rod 2 49 are provided in mounting groove 56, and reinforcing rod 1 and reinforcing rod 2 49 hang down
Straight center line is overlapped with the angular bisector of arc stress section 2 54, when arc stress section 2 54 receives pressure, is reinforced
Bar 1 and reinforcing rod 2 49 can preferably accept the pressure, improve the attachment beam 1 and attachment beam for opening up mounting groove 56
2 48 intensity
The opening sleeve of the oil pipe 2 21 is connected to, oil pipe two on the upper end of bearing housing 19 with through-hole 25
21 receive the crude oil from through-hole 25, and are delivered to the extracting device of oil on ground.
Specifically, the exit of bearing housing 19 is arranged in the О type sealing ring 4 20 and sealing ring 8, for sealing axis
Gap between the outlet of cabinet 19 and transmission shaft 18 is held, prevents crude oil from entering in bearing housing 19.
Specifically, the front of the side of piston 14 is arranged with after in the О type sealing ring 2 15 and О type sealing ring 3 16
Portion, to the gap between 27 medial surface of 14 side of sealing piston and expansion chamber.
Specifically, the both ends of the screw pump rotor 15 end with the end of flexible shaft 1 and flexible shaft 26 respectively
Grafting, that is to say, that the both ends of the screw pump rotor 15 are polygon, the end of flexible shaft 1 and the end of flexible shaft 26
Portion offers the polygon hole being adapted to therewith, the both ends insertion of screw pump rotor 15, the end of flexible shaft 1 and flexible shaft 26
End in, realize the transmitting of torque, and upper box cupling 7 and lower box cupling 23 are provided on the both ends of screw pump rotor 15,
It is connected with realizing with the end of flexible shaft 1 and the end of flexible shaft 26.
Specifically, the bearing housing 19 is respectively provided with cyclic annular fixing end 40 on upper and lower end, and solid in ring-type
40 lateral surface of fixed end offers screw thread, and the end of the oil pipe 1 and oil pipe 2 21 offers screw thread, and is screwed onto bearing housing
In the cyclic annular fixing end 40 of body 19.
Working principle:
Permanent magnet synchronous motor 1 is controlled by the control terminal on ground, and provides power supply, permanent magnet synchronous motor 1 by power successively
It is transferred to flexible shaft 1, screw pump rotor 5, flexible shaft 26 and transmission shaft 18, screw pump rotor 5 is matched with screw pump stator 4
Under conjunction, crude oil is sucked by the inlet hole of connector sleeve 2, and crude oil passes sequentially through connector sleeve 2, oil pipe 1, screw pump stator 4, bearing
Through-hole 25, the oil pipe 2 21 of cabinet 19 enter the control terminal on ground.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of novel submersible electric screw pumps downhole oil extraction device, which is characterized in that including permanent magnet synchronous motor, flexible shaft
One, screw pump, oil pipe one, flexible shaft two, bearing housing, cylinder roller bearing, tandem cylindrical roller thrust bearing, ball bearing,
Transmission shaft and oil pipe two, in which:
The permanent magnet synchronous motor is electrically connected by the control terminal on oil-submersible cable and ground, and passes through flexible shaft one and screw pump
The connection that can be driven of rotor；
One end of the oil pipe one is sleeved on the outlet of screw pump；
The setting of flexible shaft two can be sequentially connected in oil pipe one, and with the end of the rotor of screw pump；
The bearing housing offers the through-hole through upper and lower end face, and through-hole avoids the inner cavity of bearing housing, bearing housing
Lower end surface be connected in the opening of oil pipe one, and through-hole is connected to the inner hole of oil pipe one, the inner cavity packet of the bearing housing
Include the mounting portion positioned at front and breathing space positioned at rear portion, in the mounting portion according to the opening of oil pipe one by closely to remote suitable
Sequence successively offers annular mounting groove one, annular mounting groove two and annular mounting groove three, sets between the mounting portion and breathing space
It is equipped with piston and elastic component, the elastic component is arranged in breathing space, and pushes piston mobile to mounting portion, so that piston pushes away
Moving axis bearing lubrication oil is full of mounting portion, after bearing oil expanded by heating, pushes piston mobile to breathing space, and the elasticity of compression
Part；
The cylinder roller bearing, tandem cylindrical roller thrust bearing and ball bearing setting are in annular mounting groove one, annular installation
In slot two and annular mounting groove three；
The transmission shaft is fixed in cylinder roller bearing, tandem cylindrical roller thrust bearing and ball bearing, and with it is soft
Property axis two can be sequentially connected, and the inner hole of the tandem cylindrical roller thrust bearing, which is fixedly installed, unloads power ring, the power of the unloading ring packet
Inner ring, outer ring, connector one and connector two are included, the inner ring is fixed on the side of transmission shaft, and the outer ring is fixed
It is arranged on tandem cylindrical roller thrust bearing inner hole, the connector one is identical with two quantity of connection, and is at least arranged
There are four, connector one and connector two within the lateral surface and outer ring medial surface of inner ring are evenly arranged in centered on ring center
Between, and connector one and the alternate setting of connector two, one end of the connector one are fixed at the inner hole side of outer ring
The position of proximal edges one, the one face ball bearing of side are leaned in face, and the other end of connector one is fixed at the outside of inner ring
The position of proximal edges two is leaned in face, and the two face cylinder roller bearing of side, one end fixed setting of the connector two is outside
The position of proximal edges three, the three face cylinder roller bearing of side are leaned in the inner hole side of ring, and the other end of connector two is fixed
The lateral surface that outer ring is arranged in leans on the position of proximal edges four, the four face ball bearing of side；
The opening sleeve of the oil pipe two is connected on the upper end of bearing housing with through-hole, and oil pipe two is adopted with ground
Oily device connection.
2. a kind of novel submersible electric screw according to claim 1 pumps downhole oil extraction device, it is characterised in that: described
Extracting device of oil further includes protector, connector sleeve, pump box cupling, and the screw pump includes screw pump rotor and screw pump stator, described
Protector is arranged on permanent magnet synchronous motor, and the connector sleeve is fixed on protector, and is sleeved on permanent magnet synchronous electric
On the outside of the output shaft of machine, inlet hole is offered on connector sleeve, the flexible shaft one is arranged in connector sleeve, and and permanent magnet synchronous electric
The output shaft of machine can be sequentially connected, and the screw pump stator is connected on connector sleeve, and the screw pump rotor is arranged in screw pump
In stator, and it can be sequentially connected with flexible shaft one；One end of the oil pipe one is sleeved in the opening of screw pump stator, and is used
Pump box cupling oil pipe one is fixed.
3. a kind of novel submersible electric screw according to claim 2 pumps downhole oil extraction device, it is characterised in that: the О
The exit of bearing housing is arranged in type sealing ring four and sealing ring, stitches between the outlet of bearing housing and transmission shaft for sealing
Gap.
4. a kind of novel submersible electric screw according to claim 3 pumps downhole oil extraction device, it is characterised in that: the О
The front and rear of the side of piston is arranged in type sealing ring two and О type sealing ring three, in sealing piston side and expansion chamber
Gap between side.
5. a kind of novel submersible electric screw according to claim 4 pumps downhole oil extraction device, it is characterised in that: the spiral shell
The end grafting with the end of flexible shaft one and flexible shaft two respectively of the both ends of bar pump rotor, and the two of screw pump rotor
It is provided with box cupling and lower box cupling on end, is connected with realizing with the end of flexible shaft one and the end of flexible shaft two.
6. a kind of novel submersible electric screw according to claim 5 pumps downhole oil extraction device, it is characterised in that: the work
Plug is slidably mounted in expansion chamber, and the medial surface of piston and expansion chamber seals, and piston is in the end face of face ball bearing
On be fixedly installed the hemispherical hollow convex block made of heat-resisting soft material, the elastic component is spring, and the spring is set
It sets in the bottom of expansion chamber, and push piston to ball bearing, bearing oil is filled out before being filled in bearing housing inner cavity
In space between end face and piston end surface, the bearing housing is respectively provided with cyclic annular fixing end on upper and lower end, and
Screw thread is offered in cyclic annular fixing end lateral surface, and the end of the oil pipe one and oil pipe two offers screw thread, and is screwed onto bearing
In the cyclic annular fixing end of cabinet.
7. a kind of novel submersible electric screw according to claim 6 pumps downhole oil extraction device, it is characterised in that: described slow
The bottom for rushing chamber is additionally provided with spring adjustment component, and the spring adjustment component includes that base ring, adjusting screw, bottom plate and О type are close
Seal one, the bottom of the cushion chamber offer screw hole, and the bottom of cushion chamber is arranged in the base ring, and, institute concentric with screw hole
It states adjusting screw to be screwed onto screw hole, and protrudes on the end in base ring and be fixedly installed bottom plate, the appearance that the bottom plate loosens
It is contained in base ring, the end of the spring is separable to be resisted against on bottom plate, is offered in the exit orifice of the screw hole same with screw hole
The annular groove of the heart, the О type sealing ring one is embedded in a ring groove, and end is resisted against the nut bottom surface of adjusting screw, institute
The diameter for stating annular groove is greater than the outer diameter of О type sealing ring one.
8. a kind of novel submersible electric screw according to claim 7 pumps downhole oil extraction device, it is characterised in that: the company
Fitting one includes fixing end one, fixing end two, attachment beam one and reinforcing rod one, and the connector two includes fixing end three, fixes
End four, attachment beam two and reinforcing rod two, the fixing end one are fixed on the inner hole side of outer ring, and lean on proximal edges
One, the fixing end two is fixed on the lateral surface of inner ring, and in proximal edges two, and the inclination of attachment beam one is set
It sets, and the low one end in position is fixed on the side one of face fixing end one in fixing end two, the attachment beam one
The other end is fixed at the lower end surface of fixing end one, and the downside of attachment beam one includes the stress immediately below fixing end one
Section one and the arc stress section two being connect respectively with the side one of stress section one and fixing end two, the arc stress Duan Erxiang
Upper bending, the upper side of attachment beam one is the plane being obliquely installed, and upper side inclination extends to the lower end of fixing end one
On face and the side of fixing end two one, the peace of the front and back sides through attachment beam one is offered on the upper side of the attachment beam one
Tankage is fixedly installed reinforcing rod one, the reinforcing rod one and one upside of attachment beam between the left and right side in the mounting groove
The extending direction in face is parallel, and the center vertical line of reinforcing rod one is overlapped with the angular bisector of arc stress section two, described solid
Fixed end three is fixed at the inner hole side of outer ring on the position of proximal edges three, and the fixing end four is fixed at inner ring
For lateral surface on the position of proximal edges four, the attachment beam two is identical as one structure of attachment beam, and the both ends of attachment beam two are solid respectively
It is arranged on the lower end surface of fixing end three and the side two of fixing end four calmly, the two face fixing end three of side, the stress
Section one is located at the underface of fixing end three.
9. a kind of novel submersible electric screw according to claim 8 pumps downhole oil extraction device, it is characterised in that: described solid
Heat dissipation grid is provided on the front and back sides of fixed end one and fixing end three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532996.3A CN110185417A (en) | 2019-06-19 | 2019-06-19 | A kind of novel submersible electric screw pump downhole oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532996.3A CN110185417A (en) | 2019-06-19 | 2019-06-19 | A kind of novel submersible electric screw pump downhole oil extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185417A true CN110185417A (en) | 2019-08-30 |
Family
ID=67722442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910532996.3A Withdrawn CN110185417A (en) | 2019-06-19 | 2019-06-19 | A kind of novel submersible electric screw pump downhole oil extraction device |
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| CN (1) | CN110185417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803664A (en) * | 2024-02-26 | 2024-04-02 | 晋江市源德机械制造有限公司 | Universal shaft assembly |
-
2019
- 2019-06-19 CN CN201910532996.3A patent/CN110185417A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803664A (en) * | 2024-02-26 | 2024-04-02 | 晋江市源德机械制造有限公司 | Universal shaft assembly |
| CN117803664B (en) * | 2024-02-26 | 2024-05-14 | 晋江市源德机械制造有限公司 | Universal shaft assembly |
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Application publication date: 20190830 |
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