CN101601181B - Oil-submersible linear motor - Google Patents
Oil-submersible linear motor Download PDFInfo
- Publication number
- CN101601181B CN101601181B CN2008800003638A CN200880000363A CN101601181B CN 101601181 B CN101601181 B CN 101601181B CN 2008800003638 A CN2008800003638 A CN 2008800003638A CN 200880000363 A CN200880000363 A CN 200880000363A CN 101601181 B CN101601181 B CN 101601181B
- Authority
- CN
- China
- Prior art keywords
- stator
- line motor
- oil immersion
- outer tube
- immersion line
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Linear Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a submersible linear motor, comprising a stator 1 and a rotor 2 which motions linearly in the stator 1; the rotor 1 comprises a stator inner tube 11, a stator outer tube 9 jacketed outside of the stator inner tube 11, and plural segments of silicon steel rings 15 and coils 14 arranged along the axial direction between the stator outer tube 9 and the stator inner tube 11, which is characterized in that, between the stator outer tube 9 and the stator inner tube 11 is filled with solid insulation materials. The submersible linear motor according to the invention can implement excellent leak tightness and high insulation to stator internal elements, and ensure normal operation of Oil-submersible motor under the well.
Description
Technical field
The present invention relates to a kind of oil immersion line motor, be specifically related to a kind of oil immersion line motor that is used for work under the oil well.
Background technology
Known pumping unit mainly is girder-like oil pump-oil-well pump device, and complete equipment is divided into the mid portion of ground, down-hole and contact ground and down-hole, but it all is a mechanical oil recovery.Because the oil mining complicated condition is changeable, the shortcoming that along with the continuous increase of well depth and output, this oil pumper weight is big, accident is many becomes very obvious, and its shortcoming is specific as follows:
1, highly energy-consuming: traditional mechanical is recovered the oil because mechanical structure is very complicated, and motor power factor is very low, generally wants between the 20%-50%; Again because long sucker rod will be arranged, the per 1000 meters elastic deformations that 0.6-1.2 rice is arranged when twitching up and down approximately of sucker rod badly influence system effectiveness.
2, be easy to generate eccentric wear: because mostly the well depth in oil field is all more than km, the generation of sucker rod when rubbing had a strong impact on the reliability of system.
3, not environmental protection, noise is big; Because crude oil leak, can cause crude oil pollution to ocean when recovering the oil at sea.
4, system complex: system's main modular is separated separately, and system coordination property is very poor, and inconvenience is controlled together.
Because oil immersion line motor can be converted into electric energy straight reciprocating motion and not need middle drive mechanism; No matter be oil pumper to be transformed in aboveground or down-hole; All help reducing transmission mechanism bulk, the raising machine is adopted efficient, and its advantage is specific as follows:
1, the few energy of joint: oil immersion line motor mainly is mover moving linearly in stator, and its structure is very simple, and the relative legacy system of system effectiveness is high, and is therefore energy-conservation; Because do not have long sucker rod, gear reduction and walking beam etc., system effectiveness strengthens greatly; Average energy-conservationly reach 50%, saved mass energy.
2, eccentric wear free: owing to there is not long sucker rod, also just do not had the eccentric wear problem, the reliability of system strengthens greatly.
3, since motor underground, so noise is little; Owing to do not leak outside, can not cause crude oil pollution to ocean when recovering the oil at sea.
4, system is simple, and latent oily oil immersion line motor of system's main modular and oil-immersed pump are dressed up one, and system coordination property is fine, is convenient to realize Based Intelligent Control.
But utilize oil immersion line motor to come recover petroleum; There are many requirements in stator to oil immersion line motor: at first be to take seal approach; The latent oily oil immersion line motor of for example under oil well, working; Its stator interior can not water leaking-in, the wet goods foreign material, otherwise the coil component of energising can't operate as normal and even motor is damaged in the stator.Therefore for oil immersion line motor, the sealing property of optimizing its stator is even more important.
Summary of the invention
Main purpose of the present invention just provides a kind of good seal performance, has the possibility that leaks outside, the oil immersion line motor of high efficiency when avoiding recovering the oil.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of oil immersion line motor; Comprise that stator reaches the mover of moving linearly in this stator; Said stator comprises pipe in the stator, be set in the outer stator outer tube of pipe in the said stator and be arranged at said stator outer tube and said stator between the pipe and along the plural number joint silicon steel ring and the coil of its axial arranging; It is characterized in that, be filled with solid insulating material between the pipe in said stator outer tube and the said stator.
Preferably:
Said insulating material is an epoxy resin.
Said coil has insulation crust.
Also comprise at least one joint that is arranged at said stator outer tube and stator inner tube portion, the pipe tight fit is to form annular seal space in said joint and said stator outer tube and the stator between the three.
Said joint respectively with stator outer tube and stator in the joint of managing be equipped with sealing ring.
Offer cannelure at least one of pipe and the side face that joins of stator outer tube respectively with in the said stator at said joint, said sealing ring is positioned at this cannelure.
The end face of said stator outer tube offers first screw, and the sidepiece of said joint offers deep gouge, offers corresponding with said first screw in the said deep gouge and is communicated with first through hole of said deep gouge.
Be provided with the pad of glue class between said stator outer tube and joint.
At least one is welded into seamless state the connecting part of the inner peripheral surface of managing in the connecting part of the outer peripheral face of said joint and stator outer tube and said joint and the stator.
Preferably, comprise also being arranged at first spacing ring between the pipe in said stator outer tube and the stator that fastening being installed in of said first spacing ring managed in the said stator, is used for carrying out spacing to said silicon steel ring and coil.
Preferably, said first spacing ring comprises that the radian sum is slightly less than the first hoop arc and the second hoop arc of full circle radian, and said first and second hoop arc fixed engagement is managed in said stator with lock ring.
Preferably; The sidepiece of the said first hoop arc offers second through hole that is communicated with its end; The respective end of the said second hoop arc offers second screw, passes said second through hole and lock second screw of paying on said second screw said first hoop arc and the second hoop arc is affixed.
Preferably, said mover comprises axle, permanent-magnetic clamp, magnetic guiding loop and second spacing ring, and said permanent-magnetic clamp and magnetic guiding loop array arrangement are on axle, and said second spacing ring tightens up and is installed on the axle, is used for permanent-magnetic clamp on the axle and magnetic guiding loop are carried out axial limiting.
Preferably, said second spacing ring comprises the 3rd hoop arc, the 4th hoop arc, the radian of said the 3rd hoop arc and the 4th hoop arc be slightly less than the full circle radian, said the 3rd hoop arc and the 4th hoop arc fixed engagement with lock ring on said axle.
Preferably; Said the 3rd hoop arc is provided with the fourth hole that is communicated with outside portion and end; The respective end of said the 4th hoop arc is provided with the 4th screw, pass said fourth hole and be locked at the 4th screw on said the 4th screw will be said the 3rd hoop arc and the 4th bind round the arc fixed engagement.
Preferably, said mover also comprises bearing, and said bearing holder (housing, cover) is on axle, and the external diameter of said bearing is bigger than the external diameter of permanent-magnetic clamp, magnetic guiding loop, second spacing ring.
Preferably, said bearing comprises plastic bearing and magnetic conduction bearing, and said plastic bearing is enclosed within the magnetic conductive axis bearing outer-ring.
Preferably, at least one external diameter is bigger than the external diameter of permanent-magnetic clamp in said magnetic guiding loop, second spacing ring.
Preferably, also comprise clamp nut, the end of said axle is provided with screw thread, and said clamp nut is locked on the said screw thread.
Preferably, said axle is a hollow type.
Beneficial technical effects of the present invention is:
Oil immersion line motor of the present invention is worked under oil well; And be connected with oil well pump; Because oil immersion line motor of the present invention is filled with solid insulating material between in stator outer tube and stator, managing, thereby has guaranteed the high-insulativity and the sealing effectiveness of stator interior coil component, has intercepted the entering of oil outer, water etc.; The mover that has guaranteed to be positioned at stator interior is more made rectilinear motion up and down on unobstructive condition, guarantee the normal and stable work of oil immersion line motor.
Because oil immersion line motor of the present invention is provided with joint through pipe, position outer tube end in the location of its stator; This joint merges and the common airtight chamber that forms of stator inner and outer pipe through pipe, stator outer tube close-fitting in sealing ring and the stator, has further guaranteed being arranged at the sealing property of the element between pipe, the stator outer tube in the stator.Stator produces elementary travelling-magnetic-field through silicon steel ring and coil; Produce electromagnetic push with the mover interaction; Mover is made rectilinear motion up and down in stator; And then act on the oil well pump, can underground crude oil be extracted in the oil pick-up tube through oil well pump continually, and be transported in the ground installation from oil pick-up tube; The stator of this oil immersion line motor is under the situation of sealing fully; Intercepted the entering of oil outer, water etc.; Thereby guaranteed that the mover that is positioned at stator interior moves up and down under unobstructive condition,, improved system works efficient greatly owing to need not the sucker rod of traditional length.
Description of drawings
Fig. 1 is the structural representation of the oil immersion line motor of the specific embodiment of the invention;
Fig. 2 is the structural representation of stator of the oil immersion line motor of the specific embodiment of the invention;
Fig. 3 is the three-dimensional diagrammatic sketch of Fig. 2 center tap part;
Fig. 4 is that diagrammatic sketch is amplified in the part of Fig. 2 center tap and the assembling of stator inner and outer pipe;
Fig. 5 draws the part of an end of motor lines and amplifies diagrammatic sketch for stator among Fig. 2;
Fig. 6 is the three-dimensional diagrammatic sketch of first spacing ring among Fig. 2;
Fig. 7 is the three-dimensional diagrammatic sketch of the first hoop arc of first spacing ring;
Fig. 8 is the three-dimensional diagrammatic sketch of the second hoop arc of first spacing ring;
Fig. 9 is the structural representation of the mover of the specific embodiment of the invention;
Figure 10 is the structural representation of the bearing among Fig. 9.
Embodiment
Below through concrete execution mode and combine accompanying drawing that the present invention is explained further details.
Like Fig. 1, shown in 2; The present invention relates generally to a kind of oil immersion line motor that is used for work under the oil well; Can be with being positioned at underground crude oil pump to ground, these linear electric motors comprise stator 1 (being generally elementary) and in this stator 1, make straight-line mover 2 (being generally secondary) up and down.
Said stator 1 comprises a plurality of silicon steel rings 15 and a plurality of coil 14 and two ring joints 10 of pipe 11, array arrangement in stator outer tube 9, the stator, and wherein, stator outer tube 9 can adopt steel pipe with the interior pipe 11 of stator, and said coil 14 is an annular.
The more piece silicon steel ring 15 of array arrangement and a plurality of coil 14 axially are set in stator outer tube 9 and the stator between pipe 11 bodys, and ring set manage on 11 in stator, and each silicon steel ring 15 and coil 14 are arranged with interlaced form vertically.The coil 14 of array arrangement is arranged in star or triangle connecting coil by three-phase.
Shown in Fig. 2-4; Each joint 10 is arranged at an end of pipe 11 in stator outer tube 9, the stator; Pipe 11 tight fits in said joint 10 and stator outer tube 9, the stator all offer cannelure 103 on the outer peripheral face that inner peripheral surface that pipe 11 joins in joint 10 and stator and joint 10 and stator outer tube 9 join, and are equipped with sealing ring 12 in the groove 103; In the present embodiment, sealing circle 12 is an O type ring.Owing to be equipped with sealing ring 12 between the pipe 11 respectively and in stator outer tube 9 and the stator at joint 10; Thereby pipe 11 tight fits are to form annular seal space in said joint 10 and said stator outer tube 9 and the stator between the three; To intercept the entering of impurity such as oil outer, water, silicon steel ring 15 and loop coil 14 operational environments in the cavity have been guaranteed.
As shown in Figure 4; In further preferred embodiment; The for example annular gasket 17 of glue class also is housed between stator outer tube 9 and joint 10, and this annular gasket 17 can pass and be clamped between stator outer tube 9 and the joint 10 by the 3rd screw (figure does not show), further guarantees the sealing effectiveness of annular seal space.
As shown in Figure 1; In the preferred embodiment, with the connecting part 22 of joint 10 with the outer peripheral face of stator outer tube 9, and joint 10 welds with the connecting part 23 of the outer peripheral face of the interior pipe 11 of stator; Make it become seamless state; It can adopt splendid Laser Welding of weldability or argon arc welding, also can adopt other welding manner, has also guaranteed the environment of stator 1 in sealing.
Shown in Fig. 1-5; In the preferred embodiment; Joint 10 comprises different two sections of external diameter, forms step, the top 10a of this step; Be that the little part of external diameter is inserted between the respective ends of interior pipe 11 of stator and stator outer tube 9, the bottom 10b of this step is the respective ends that stator outer tube 9 is supported on the big part top of external diameter.The end face that preferably supported by joint 10 tops at stator outer tube 9 offers first screw 91; The sidepiece of joint 10 offers deep gouge 101; The bottom 10b of the step of joint 10 is to offering first through hole 105 that is communicated with this deep gouge 101 by first screw 91; First screw (figure does not show) passes this first through hole 105 and locks on this first screw 91, makes stator outer tube 9 and 10 fluid-tight engagement of joint through the screw coupling mechanism force, has guaranteed the sealing property of chamber.
As shown in Figure 2, be reinforced insulation performance and intensity, high insulating cement class of coil 14 usefulness or plastics class are solidified, and form the shell of high strength and high insulating property.In stator outer tube 9 and stator, fill out between the pipe 11 and irritate as solid insulating materials 29 such as high insulating cement or plastics, this insulating material 29 is an epoxy resin, covers coil 14 and silicon steel ring 15 after it is shaped.Sign to insulating material 29 among the figure is merely the schematic sign a position, between in fact filling insulating material manages 11 in stator outer tube 9 and stator everywhere.
Because oil immersion line motor of the present invention is filled with solid insulating material 29 between in stator outer tube 9 and stator, managing 11; Just simply illustrated the sketch map of insulating material 29 among Fig. 2; Insulating material is to be filled in to manage between 11 in stator outer tube 9 and the stator in fact; Be the part of Fig. 2 signal not only, thereby guaranteed the high-insulativity and the sealing effectiveness of stator interior coil component, further intercepted the entering of oil outer, water etc.; The mover that has guaranteed to be positioned at stator interior is more made rectilinear motion up and down on unobstructive condition, guarantee the normal and stable work of oil immersion line motor.
As shown in Figure 2, can in a joint 10, have wire hole 106 through the outgoing cable line 20 control motor movements of this oil immersion line motor in order to make outside control system (figure does not show), motor spiral lead-out wire 18 is drawn from this wire hole 106.Said wire hole 106 can be offered vertically.Motor spiral lead-out wire 18 is arranged in the wire hole 106 with the link 21 of motor outgoing cable line 20, preferably in wire hole 106 with this link with screw or adhesive curing, thereby guarantee the sealing of wiring intensity and junction.As shown in Figure 2, connector portions 201 connection control system of motor outgoing cable line 20.Also can in a joint 10, have out wire casing, motor spiral lead-out wire 18 goes out wire casing from this and draws.
As shown in Figure 1; In the preferred embodiment, except having silicon steel ring 15 and coil 14, also comprise fastening a plurality of first spacing rings 16 on the pipe 11 in the stator that are installed in the aforesaid airtight chamber; 16 pairs of silicon steel rings of first spacing ring 15 and coil 14 manages 11 and are lined up positioning action on axial in stator; Guaranteeing the arrangement requirement of stator excitation element, can guarantee every section slot pitch simultaneously, also is the spacing of the silicon steel ring 15 of stator 1.First spacing ring 16 can adopt steel loop, and in such cases, first spacing ring 16 is also participated in the magnetic circuit of stator.Preferably, every at a distance from predetermined distance first spacing ring 16 is set all, and in the position near two joints 10 first spacing ring 16 is set respectively also, each first spacing ring, 16 sidepiece is right after silicon steel ring 15 or coil 14 to limit its activity.
Shown in Fig. 6-8, further, first spacing ring 16 is the pressure hoop of being made up of the first hoop arc 16a and the second hoop arc 16b, and the radian sum of the first hoop arc 16a and the second hoop arc 16b is slightly less than the radian of full circle.The preferred first hoop arc 16a and the second hoop arc 16b all are semi-annular shape substantially.Wherein, The said first hoop arc 16a is provided with second through hole 162 that is communicated with its outside portion and end; The respective end of the second hoop arc 16b offers second screw, 163, the second screws and passes second through hole 162 and be locked on second screw 163, to be fixedly connected the first hoop arc 16a and the second hoop arc 16b.Like this, promptly the first hoop arc 16a, the second hoop arc 16b lock ring are managed on 11 in stator through the screw coupling mechanism force.
In a further embodiment, first spacing ring 16 also can be other structures, as being made up of the round convexity that is positioned on the stator pipe 11.
For guaranteeing mechanical strength, pipe 11 adopts the thin wall-type steel pipe in the stator.In addition, pipe 11 both can be incorporate long tube in the stator, also can be to be joined by many short tube segmentations to constituting.
As shown in Figure 9, said mover 2 comprises axle 25, permanent-magnetic clamp 4, magnetic guiding loop 5, second spacing ring 7.Said permanent-magnetic clamp 4 and magnetic guiding loop 5 arrayed are on axle 25.Said second spacing ring 7 is fixed on the axle 25, is used for permanent-magnetic clamp on the axle 25 4 and magnetic guiding loop 5 are carried out axial limiting.Said second spacing ring 7 can make permanent-magnetic clamp 4 and magnetic guiding loop 5 remain on the initial designs position, and the polar moment of avoiding permanent-magnetic clamp 4 and magnetic guiding loop 5 to move causing changes, thus the operate as normal of assurance mover.And then avoid maintenance, detection to mover, reduce expenses.Said axle 25 can be steel pipe, and said magnetic guiding loop 5 can be steel loop, and the material of said second spacing ring 7 also can be steel.The number of said permanent-magnetic clamp 4 and magnetic guiding loop 5 generally all has a plurality of according to the width decision of length, permanent-magnetic clamp 4 and the magnetic guiding loop 5 of axle 25.
Like Fig. 9, shown in 10, in one embodiment, said mover 2 also comprises bearing 6, and said bearing 6 is enclosed within on the axle 25.The external diameter of said bearing 6 is bigger than the external diameter of permanent-magnetic clamp 4, magnetic guiding loop 5, second spacing ring 7, plays the effect of protection permanent-magnetic clamp 4, magnetic guiding loop 5, second spacing ring 7.As shown in Figure 2, said bearing 6 comprises plastic bearing 61 and magnetic conduction bearing 62, and said plastic bearing 61 is enclosed within magnetic conduction bearing 62 outer rings.Said plastic bearing 61 is processed by the high molecular abrasion-proof material, to reduce coefficient of friction.Said magnetic conduction bearing 62 can be the steel bearing.
(structure of second spacing ring 7 is identical with the structure of first spacing ring 16 for said second spacing ring 7; Can be with reference to figure 6-8) comprise the pressure hoop of forming by the 3rd hoop arc 71, the 4th hoop arc 72; The radian of said the 3rd hoop arc 71 and the 4th hoop arc 72 be slightly less than the full circle radian, said the 3rd hoop arc 71 and the 4th bind round arc 72 fixed engagement with lock ring on said 25.In one embodiment, said the 3rd hoop arc 71, the 4th hoop arc 72 all are semi-annular shape substantially.Said the 3rd hoop arc 71 is provided with the fourth hole 73 that is communicated with outside portion and end; The respective end of said the 4th hoop arc 72 is provided with the 4th screw 74, the four screws (figure do not show) and passes said fourth hole 73 and be locked on said the 4th screw 73 so that said the 3rd hoop arc 71 and the 4th is bound round arc 72 fixed engagement.
Certainly, as required, the user can design three or complete spacing ring of more hoop arc compositions.As long as these bind round the radian of arcs and are slightly less than the full circle radian.
In a further embodiment, said second spacing ring 7 also can be other structure, as being made up of the round convexity that is positioned on the moving axis.
As shown in Figure 9, in one embodiment, at least one external diameter is more bigger than the external diameter of permanent-magnetic clamp 4 in said magnetic guiding loop 5, second spacing ring 7.Like this, after bearing 6 wearing and tearing, at least one just can be permanent-magnetic clamp 4 in the magnetic guiding loop 5 and second spacing ring 7 provides protection
As shown in Figure 9, in certain embodiments, said mover 2 also comprises clamp nut 8, and said moving axis end is provided with screw thread 3, and said clamp nut is locked on the said screw thread 3.Clamp nut can guarantee the coupling mechanism force of permanent-magnetic clamp 4, magnetic guiding loop 5, second spacing ring 7 and bearing 6 on the axle 25.
As shown in Figure 9, if the number of permanent-magnetic clamp 4 and magnetic guiding loop 5 is a lot, so said second spacing ring 7 can be provided with a plurality of, and each second spacing ring 7 evenly is fixed on the axle 25 discretely.Promptly on said axle 25, every separated predetermined distance just is provided with one second spacing ring 7, and first spacing ring, the 16 further axial limitings that strengthen permanent-magnetic clamp 4 and magnetic guiding loop 5 also are being set near clamp nut 8 places.
As shown in Figure 9, said moving axis is a hollow type, thereby plays an effect or a direct part as oil circuit that strengthens intensity, dives oily breathing.
Said screw thread 3 also can be used for linking the assembly for plunger of oil well pump.Internal thread 102 on the said joint 10 also can be used for linking the pump barrel assembly of oil well pump.
As shown in Figure 1, the operation principle of above-mentioned oil immersion line motor is following:
Because oil immersion line motor of the present invention is worked under oil well, and is connected with oil well pump.The present invention is provided with joint through pipe, position outer tube end in the location of its stator; This joint all merges and the common airtight chamber that forms of stator inner and outer pipe through pipe, stator outer tube close-fitting in sealing ring and the stator, has guaranteed being arranged at the silicon steel ring between pipe, the stator outer tube and the sealing property of coil in the stator.After the coil of stator 1 14 coils 14 logical three-phase electricity, coil 14, the silicon steel annulus 15 that is mated layout will produce the stator travelling-magnetic-field, and interacting with mover 2 converts electromagnetic energy to mechanical energy, and generation thrust moves up and down mover 2 in stator 1.Move up and down thereby drive oil well pump, can underground crude oil be extracted in the oil pick-up tube through oil well pump continually, and be transported in the ground installation from oil pick-up tube.Oil immersion line motor of the present invention can make stator keep sealing fully; Intercepted the entering of oil outer, water etc.; Thereby guaranteed that the mover that is positioned at stator interior moves up and down under unobstructive condition,, improved system works efficient greatly owing to need not the sucker rod of traditional length.
Oil immersion line motor of the present invention is filled with solid insulating material between in stator outer tube and stator, managing, thereby has guaranteed the high-insulativity of stator interior coil component, guarantees the normal and stable work of oil immersion line motor.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For example, stator of the present invention not only can be used as the stator of oil immersion line motor, can also be other any linear electric motors that need seal to the coiler part in the stator be filled with the insulating material stator.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (18)
1. oil immersion line motor; Comprise that stator (1) reaches the mover (2) of moving linearly in this stator (1); Said stator (1) comprises pipe (11) in the stator, be set in the outer stator outer tube (9) of pipe (11) in the said stator and be arranged at said stator outer tube (9) with said stator in save silicon steel ring (15) and coil (14) between the pipe (11) and along the plural number of its axial arranging; It is characterized in that, be filled with solid insulating material between the pipe (11) in said stator outer tube (9) and the said stator;
Also comprise being arranged at first spacing ring (16) between the pipe (11) in said stator outer tube (9) and the stator, fastening being installed in the said stator of said first spacing ring (16) managed on (11), is used for carrying out spacing to said silicon steel ring (15) and coil (14);
Said first spacing ring (16) comprises that the radian sum is slightly less than the first hoop arc (16a) and the second hoop arc (16b) of full circle radian, and said first and second hoop arc (16a, 16b) manage on (11) in said stator with lock ring by fixed engagement.
2. oil immersion line motor as claimed in claim 1 is characterized in that, said insulating material is an epoxy resin.
3. oil immersion line motor as claimed in claim 1 is characterized in that, said coil (14) has insulation crust.
4. oil immersion line motor as claimed in claim 1; It is characterized in that; Also comprise at least one joint (10) that is arranged at pipe (11) end in said stator outer tube (9) and the stator, pipe (11) tight fit is to form annular seal space in said joint (10) and said stator outer tube (9) and the stator between the three.
5. oil immersion line motor as claimed in claim 4 is characterized in that, said joint (10) respectively with stator outer tube (9) and stator in manage (11) joint be equipped with sealing ring (12).
6. oil immersion line motor as claimed in claim 5; It is characterized in that; Offer cannelure (103) at least one of the side face that joins of pipe (11) and stator outer tube (9) respectively with in the said stator at said joint (10), said sealing ring (12) is positioned at this cannelure (103).
7. oil immersion line motor as claimed in claim 4; It is characterized in that; The end face of said stator outer tube offers first screw (91); The sidepiece of said joint (10) offers deep gouge (101), offers corresponding with said first screw (91) in the said deep gouge and is communicated with first through hole (105) of said deep gouge (101).
8. oil immersion line motor as claimed in claim 4 is characterized in that, is provided with the pad (17) of glue class between said stator outer tube (9) and joint.
9. oil immersion line motor as claimed in claim 4; It is characterized in that at least one is welded into seamless state the connecting part (23) of the inner peripheral surface of the interior pipe of the connecting part (22) of the outer peripheral face of said joint (10) and stator outer tube (9) and said joint (10) and stator (11).
10. oil immersion line motor according to claim 1; It is characterized in that: the sidepiece of the said first hoop arc (16a) offers second through hole (162) that is communicated with its end; The respective end of the said second hoop arc (16b) offers second screw (163), passes said second through hole (162) and lock second screw of paying on said second screw (163) the said first hoop arc (16a) and the second hoop arc (16b) is affixed.
11. according to the arbitrary described oil immersion line motor of claim 1-10; Said mover (2) comprises axle (25), permanent-magnetic clamp (4), magnetic guiding loop (5) and second spacing ring (7); Said permanent-magnetic clamp (4) and magnetic guiding loop (5) array arrangement are on axle (25); Said second spacing ring (7) tightens up and is installed on the axle (25), is used for permanent-magnetic clamp (4) on the axle (25) and magnetic guiding loop (5) are carried out axial limiting.
12. oil immersion line motor according to claim 11; It is characterized in that: said second spacing ring (7) comprises the 3rd hoop arc (71), the 4th hoop arc (72); The radian of said the 3rd hoop arc (71) and the 4th hoop arc (72) be slightly less than the full circle radian, said the 3rd hoop arc (71) and the 4th bind round arc (72) fixed engagement with lock ring on said (25).
13. oil immersion line motor according to claim 12; It is characterized in that: said the 3rd hoop arc (71) is provided with the fourth hole (73) that is communicated with outside portion and end; The respective end of said the 4th hoop arc (72) is provided with the 4th screw (74), pass said fourth hole (73) and be locked at the 4th screw on said the 4th screw (74) will be said the 3rd hoop arc (71) and the 4th bind round arc (72) fixed engagement.
14. oil immersion line motor according to claim 11; It is characterized in that: said mover (2) also comprises bearing (6); Said bearing (6) is enclosed within on the axle (25), and the external diameter of said bearing (6) is bigger than the external diameter of permanent-magnetic clamp (4), magnetic guiding loop (5), second spacing ring (7).
15. oil immersion line motor according to claim 14 is characterized in that: said bearing (6) comprises plastic bearing (61) and magnetic conduction bearing (62), and said plastic bearing (61) is enclosed within magnetic conduction bearing (62) outer ring.
16. oil immersion line motor according to claim 11 is characterized in that: at least one external diameter is bigger than the external diameter of permanent-magnetic clamp (4) in said magnetic guiding loop (5), second spacing ring (7).
17. oil immersion line motor according to claim 11 is characterized in that: also comprise clamp nut (8), the end of said axle (25) is provided with screw thread (3), and said clamp nut (8) is locked on the said screw thread (3).
18. oil immersion line motor according to claim 11 is characterized in that: said axle (25) is a hollow type.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2008/072886 WO2010048756A1 (en) | 2008-10-30 | 2008-10-30 | Submersible linear motor for oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101601181A CN101601181A (en) | 2009-12-09 |
| CN101601181B true CN101601181B (en) | 2012-02-01 |
Family
ID=41421609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800003638A Expired - Fee Related CN101601181B (en) | 2008-10-30 | 2008-10-30 | Oil-submersible linear motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101601181B (en) |
| WO (1) | WO2010048756A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160102535A1 (en) * | 2013-12-26 | 2016-04-14 | Shenzhen Han's Motor S&T Co., Ltd | Oil-submersible linear motor oil extraction system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813571B (en) * | 2012-11-30 | 2018-07-13 | 日立金属株式会社 | The manufacturing method of actuator and actuator |
| CN107276365B (en) * | 2017-08-07 | 2023-09-01 | 吕新青 | Novel linear motor rotor |
| CN109854475A (en) * | 2019-04-04 | 2019-06-07 | 河北国创石油设备有限公司 | A kind of straight line latent oil lifting unit |
| CN113839487B (en) * | 2020-06-24 | 2023-04-07 | 河北国创石油设备有限公司 | Rotor structure of rodless oil extraction linear motor |
| CN112421836B (en) * | 2020-12-02 | 2024-02-09 | 沈阳工业大学 | High-torque density submersible screw pump permanent magnet motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815949A (en) * | 1985-06-24 | 1989-03-28 | Rabson Thomas A | In-well submersible motor with stacked component stator |
| CN2636493Y (en) * | 2003-06-16 | 2004-08-25 | 韩兴华 | Electromagnetic pump using stratigraphic mineralized water as active cell |
| CN200959566Y (en) * | 2006-08-24 | 2007-10-10 | 哈尔滨泰富电气有限公司 | Single-phase asynchronous cylindrical linear motor |
| CN201038870Y (en) * | 2007-04-14 | 2008-03-19 | 孙庆林 | A full metal welding end oil immersion line motor |
| CN201091059Y (en) * | 2006-12-21 | 2008-07-23 | 马善振 | Permanent magnetism linear motor for well |
| CN201312144Y (en) * | 2008-11-13 | 2009-09-16 | 深圳市大族精密机电有限公司 | Submersible linear motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3862885B2 (en) * | 1999-03-09 | 2006-12-27 | 山洋電気株式会社 | Cylinder type linear synchronous motor |
| CN2623872Y (en) * | 2003-04-17 | 2004-07-07 | 孙平 | Oil well downhole pumping installation |
-
2008
- 2008-10-30 CN CN2008800003638A patent/CN101601181B/en not_active Expired - Fee Related
- 2008-10-30 WO PCT/CN2008/072886 patent/WO2010048756A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815949A (en) * | 1985-06-24 | 1989-03-28 | Rabson Thomas A | In-well submersible motor with stacked component stator |
| CN2636493Y (en) * | 2003-06-16 | 2004-08-25 | 韩兴华 | Electromagnetic pump using stratigraphic mineralized water as active cell |
| CN200959566Y (en) * | 2006-08-24 | 2007-10-10 | 哈尔滨泰富电气有限公司 | Single-phase asynchronous cylindrical linear motor |
| CN201091059Y (en) * | 2006-12-21 | 2008-07-23 | 马善振 | Permanent magnetism linear motor for well |
| CN201038870Y (en) * | 2007-04-14 | 2008-03-19 | 孙庆林 | A full metal welding end oil immersion line motor |
| CN201312144Y (en) * | 2008-11-13 | 2009-09-16 | 深圳市大族精密机电有限公司 | Submersible linear motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160102535A1 (en) * | 2013-12-26 | 2016-04-14 | Shenzhen Han's Motor S&T Co., Ltd | Oil-submersible linear motor oil extraction system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010048756A1 (en) | 2010-05-06 |
| CN101601181A (en) | 2009-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101601181B (en) | Oil-submersible linear motor | |
| CN201328033Y (en) | Submersible linear motor | |
| CN101409494B (en) | Oil-submersible linear motor | |
| CN201312247Y (en) | Submersible linear motor | |
| CN101409495B (en) | Oil-submersible linear motor | |
| CN101285449A (en) | Non-contact type energy transmission system direct drive -type wave energy conversion device | |
| CN201312144Y (en) | Submersible linear motor | |
| CN107276364A (en) | A kind of oil immersion line motor | |
| CN101431273B (en) | Oil-submersible linear motor | |
| CN201091059Y (en) | Permanent magnetism linear motor for well | |
| CN101969260A (en) | Cylindrical submersible linear motor and submersible linear pumping unit | |
| CN103912439A (en) | Floater-based and hydraulic wave power generation assembly | |
| CN105253278B (en) | Deep-sea magnetic coupling propulsion plant | |
| CN102624191B (en) | Wave energy permanent magnet linear generator | |
| CN202391644U (en) | Generating device utilizing surge power | |
| CN202934574U (en) | Underwater hydraulic mechanical arm short type wrist turning clamp driving structure | |
| CN109120130A (en) | A kind of reciprocating submersible electric pump and its linear motor | |
| CN104454477A (en) | Sealing device for electric submersible reciprocating pump oil-production system | |
| CN203722449U (en) | Submersible switched reluctance motor | |
| CN103846925A (en) | Underwater hydraulic manipulator short-wrist rotary clamp driving structure | |
| CN201328025Y (en) | Oil-submersible straight-line motor | |
| CA2911928A1 (en) | Oil-submersible linear motor | |
| CN201345582Y (en) | Multi-stage cascade alternating current servo motor | |
| CN201407182Y (en) | Low-speed direct-drive submersible electric screw pump unit | |
| CN113612348B (en) | Submersible screw pump based on ultra-low speed multi-rotor permanent magnet submersible motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |