CN207010521U - A kind of oil immersion line motor - Google Patents

Abstract

The utility model discloses a kind of oil immersion line motor, including field frame assembly, mover assembly and spring, the mover assembly is sleeved in the field frame assembly, the spring housing is in the field frame assembly and positioned at the lower section of mover assembly, the field frame assembly includes end of incoming cables assembly, several stator pipe nipples, bearing shell, upper extension pipe, lower extension pipe and outer tube, the utility model is reasonable in design, enable mover long-time normal work, and then detection, the maintenance to mover are avoided, save expense；Inlet wire locking tube and inlet wire compressing pipe are welded and fixed with motor head, good fixing effect；Multilayer insulating film is twined outside copper cash, insulation effect is good, avoids the dangerous generation such as electric leakage；Combine device of strike-ofing to be composed in series by several devices of strike-ofing, silt particle of the apposition on pull bar surface can be scraped off, discharged from clearance hole, prevent silt particle from blocking；Worked in the environment without magnetic, apposition power of the dirt on pull bar can be reduced, ensure sealing effectiveness of strike-ofing.

Description

A kind of oil immersion line motor

Technical field

A kind of linear electric motors are the utility model is related to, more particularly, to a kind of oil immersion line motor.

Background technology

Linear electric motors are that electric energy is directly changed into linear motion mechanical energy by one kind, without any intermediate conversion mechanism Transmission device.It can regard an electric rotating machine as by radially splitting, and transform into plane and form.Developed by stator Side is referred to as primary, and the side developed by rotor is referred to as secondary.In practical application, primary and secondary is manufactured into difference Length, keep constant with the coupling ensured in required stroke range between primary and secondary.Linear electric motors can be short first The long secondary of level or long primary short secondary.In view of manufacturing cost, operating cost, by taking LIM as an example：When When armature winding is passed through AC power, travelling-magnetic-field is just produced in air gap, secondary will induce electricity under traveling wave magnetic field intercepts Kinetic potential simultaneously produces electric current, and the electric current just produces electromagnetic push with the magnetic field phase separation in air gap.If primary is fixed, secondary exists Moved along a straight line under thrust；Conversely, then primary moves along a straight line.One linear electric motors of Drive Control Technique of linear electric motors Application system will not only have linear electric motors of good performance, it is necessary to which technology and warp can be realized under conditions of safe and reliable by having The control system that Ji requires.With the development of automatic control technology and micro-computer technology, the control method of linear electric motors is more next It is more.

Linear electric motors mainly have following several features compared with electric rotating machine：When it is simple in construction, due to linear electric motors not Need the rotation motion to be in line the attachment device of motion, so that the structure of system in itself is greatly simplified, weight and body Product greatly declines；Second, positioning precision is high, in the place that needs move along a straight line, linear electric motors can realize direct-drive, because And various position errors caused by intermediate link can be eliminated, therefore positioning precision is high, is such as controlled using microcomputer, then can also be big The earth improves the positioning precision of whole system；Third, reaction speed is fast, high sensitivity, trackability is good.Linear electric motors are easily able to Its mover is supported with magnetic suspension, so that remaining certain air-gap between mover and stator without contacting, this just disappears Except the contact frictional resistance between fixed and moving son, thus greatly increase sensitivity, rapidity and the trackability of system；Fourth, Safe and reliable, long lifespan.Linear electric motors can realize non contact transmission power, and mechanical friction loss is almost nil, so therefore Barrier is few, freedom from repairs, thus safe and reliable, long lifespan.

Known pumping unit is mainly girder-like oil pump-oil-well pump device, and complete equipment is divided into ground, underground and connection It is the center section of ground and underground, but it is all mechanical oil recovery, because oil mining complicated condition is changeable, with well depth and production The shortcomings that amount is continuously increased, and this oil pumper weight is big, accident is more becomes apparent from, and its shortcoming is specific as follows：1st, high consumption Energy：Tradition machinery is recovered the oil because mechanical structure is very complicated, and motor power factor is very low, typically wants between 20% -50%；Again Due to there is long sucker rod, every about 1000 meters of sucker rod there are about the elastic deformation of 0.6-1.2 rice, seriously affect when twitching System effectiveness；2nd, eccentric wear is easily produced：Because the well depth in most oil field is all more than km, generation when sucker rod is rubbed, The reliability of system is had a strong impact on；3rd, not environmentally, noise is big；Because crude oil leaks when at sea recovering the oil, crude oil can be caused Pollution to ocean；4th, system complex：System main modular is individually separated, and system coordination is very poor, and inconvenience one is started to control System.Because electric energy can be converted into straight reciprocating motion without intermediate transmission structure by oil immersion line motor, no matter It is on well or underground is transformed oil pumper, advantageously reduces transmission mechanism bulk, raising machine adopts efficiency, its Advantage is specific as follows：1st, few energy is saved：Oil immersion line motor is mainly that mover is for linear motion in stator, and its structure is very simple Single, the relatively conventional system of system effectiveness is high, therefore saves；Due to no long sucker rod, The gear deceleration and walking beam etc., system Efficiency greatly enhances；Averagely save up to 50%, save mass energy；2nd, eccentric wear free：Due to no long sucker rod, With regard to being greatly enhanced without the reliability of eccentric wear problem, system；3rd, because motor is in underground, so noise is small；At sea Due to not leaking outside during oil recovery, pollution of the crude oil to ocean will not be caused；4th, simple system, system main modular latent oil latent oil Linear electric motors dress up one with oil-immersed pump, and system coordination is fine, is easy to implement intelligent control.But using oil immersion line motor come Oil is exploited, many requirements be present to the stator of oil immersion line motor：It is to need to take seal approach first, such as in oil well The latent oil oil immersion line motor of lower work, its stator interior are unable to the debris such as water leaking-in, oil, the coil portion being otherwise powered in stator Part normal work or even can not make motor damage, therefore for oil immersion line motor, the operation steady in a long-term of its stator is outstanding Its is important, again, the mover of existing linear electric motors, typically all includes mandrel, magnet, magnetic guiding loop, the magnet and magnetic guiding loop It is sleeved on mandrel, forms magnetic circuit, for mover in design, magnet ring, the position of steel loop are all that careful design is good, so as to ensure Magnetic circuit, the polar moment of whole mover, but mover, after linear reciprocating motion is multiple, magnet and magnetic guiding loop will move, this Magnetic circuit, the polar moment of whole mover will be changed, and influence the normal work of mover.Now, maintenance personal will detect to move Magnet ring and steel loop, and be adjusted to original design position, this will spend a large amount of human and material resources costs.

The content of the invention

In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of oil immersion line motor, and this practicality is new Type adopts the following technical scheme that：A kind of oil immersion line motor, including field frame assembly, mover assembly and spring, the mover are total Complete to be mounted in the field frame assembly, the spring housing is described in the field frame assembly and positioned at the lower section of mover assembly Field frame assembly includes end of incoming cables assembly, several stator pipe nipples, bearing shell, upper elongated portion, lower elongated portion and outer tube, it is described enter Line end assembly is welded and fixed with motor top, and sheath is equiped with outside the end of incoming cables assembly, in the end of incoming cables assembly Resin glue is provided between sheath, the stator pipe nipple is welded together by bearing shell overcoat, the bearing shell overcoat built with Bearing shell, the outside for the stator pipe nipple that the outer tube sleeve is mounted in after series welding, upper end are welded with motor top, lower end and motor following Welding, the upper elongated portion upper end are connected with box cupling on motor, and lower end is connected with motor top, on the motor in hoop Equipped with bearing shell, the lower elongated portion upper end is connected with motor following, and lower end is connected with box cupling under motor, in the lower connecting tube Endoporus bottom is equipped with spring；The mover assembly includes mover top connection, mover lower contact and mandrel, and the mover top connection connects Be connected on mandrel upper end, the mover lower contact is connected to mandrel lower end, be sequentially provided with the mandrel several magnetic guiding loops and Magnet, the magnetic guiding loop and the quantity of magnet are consistent, are drawn vertically among the mover top connection and mover lower contact It is divided into some units, each unit end fills a positioning magnetic guiding loop, and the positioning magnetic guiding loop is withstood on mandrel.

Preferably, the end of incoming cables assembly includes motor top, is provided with the motor top through motor top Entrance hole, is provided with inlet wire locking tube and inlet wire compressing pipe in the entrance hole, and copper cash is locked, avoided by inlet wire locking tube Copper cash is moved in entrance hole, and copper cash is pressed in entrance hole by inlet wire compressing pipe, limit copper cash and moved in entrance hole, The fixed effect of copper cash is ensure that, several sealing rings are provided among the inlet wire locking tube and inlet wire compressing pipe so that enter Line locking tube and inlet wire compressing pipe are closely close together, ensure that it is very close to each other in entrance hole, in the inlet wire locking tube and Copper cash is provided with inlet wire compressing pipe, the copper cash runs through the entrance hole, and the inlet wire locking tube palpus undergauge is processed and holds copper tightly Line, the inlet wire locking tube and inlet wire compressing pipe are welded and fixed with motor top, fixed stability are ensure that, so as to ensure Motor is effectively smoothly run.

Preferably, the sealing ring is O-ring seals, and the material of the sealing ring is fluorubber, the inlet wire locking tube It is stainless steel tube with inlet wire compressing pipe, material is 304 stainless steels, because stainless steel has good corrosion resistance, so It can make structure member for good and all keep the integrality of engineering design, and chromium stainless steel also collects mechanical strength and deep drawing quality in one Body, it is easy to the processing and manufacturing of part, the needs of architect and structure design personnel can be met, 304 stainless steels is current commonly use Model, i.e. 18/8 stainless steel, the GB trades mark are 0Cr19Ni10.Twined outside the copper cash provided with multilayer insulating film, the material of the copper cash Expect for red copper, because copper can bend, deform, it can usually make elbow and joint, and smooth bending allows copper with any Angle bending, and copper easily connects, the material of the dielectric film is Kapton, and must be by repeatedly baking, polyamides Imines has excellent heat endurance, chemical resistance and mechanical performance, usually crocus, and polyimides chemical property is steady Fixed, polyimides need not add fire retardant and prevent from burning, all anti-chemical solvent of in general polyimides such as hydro carbons, ester Class, ethers, alcohols and dichlorodifluoromethan, their also anti-weak acid.

Preferably, the stator pipe nipple includes core pipe, stator pipe nipple end cap is connected with the both ends of the core pipe, described The outer ring of core pipe is set with combination silicon steel sheet and silicon steel dish, two end faces up and down of the combination silicon steel sheet respectively with stator pipe nipple The lower surface of end cap is connected with the upper surface of silicon steel dish, and coil is equiped with the silicon steel dish, and the coil is divided into the first phase Coil, the second phase coil and third phase coil, positioning steel bar is equiped with the outside of the silicon steel dish and stator pipe nipple end cap.

Preferably, first phase coil, the second phase coil are identical with the quantity of third phase coil, and the coil is by some Individual monolithic coil composition, the quantity of monolithic coil is designed according to the performance of motor, the rotation of the direction of winding of adjacent windings It is hollow to be easily installed after coil on the contrary, the monolithic coil is open circles sheet, by mounting coil to core pipe, circle Sheet is also, circumferential coiling consistent with the shape of motor core pipe, radially twines dielectric film, and the dielectric film is polyimide insulative Film, and must be in yellow transparent by repeatedly baking, Kapton, relative density 1.39~1.45, have prominent high temperature resistant, Radiation hardness, resistant to chemical etching and electrical insulation capability, it can be used for a long time in 250~280 DEG C of air.

Preferably, the mandrel is stainless steel solid bar, fine grinding cylinder, two cutting thread, and by screw thread respectively with it is dynamic Sub- top connection connects with mover lower contact, because stainless steel has good corrosion resistance, so it can make structure member permanent Ground keeps the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing of part Manufacture, the needs of architect and structure design personnel can be met.Threaded connection is a kind of widely used dismountable fixed company Connect, have the advantages that simple in construction, connection is reliable, be convenient to mount and dismount, threaded connection typically has self-locking performance, in addition nut and bolt Frictional force on the supporting surface on head also has anti-loose effect, thus tighten it is latter as will not release, the magnet axial charging is described Magnet is made up of samarium-cobalt material, magnet be it is a kind of can attract each other or mutually exclusive material, if inside object Tiny molecule can arrange according to equidirectional, and it will become magnet, and SmCo not only has higher as rare-earth permanent magnet Magnetic energy product, reliable coercivity and good temperature characterisitic, compared with ndfeb magnet, samarium cobalt magnet is more suitable for being operated in high temperature In environment.

Preferably, sand prevention seal device is provided with the motor upper end, the sand prevention seal device includes sand screen, push-and-pull Bar and device main body of strike-ofing, the sand screen upper end are connected with oil well pump lower contact, and filter sand is connected with the lower end of the sand screen Pipe lower contact, the assembly for plunger of the pull bar upper end connection oil well pump, lower end connect linear motor rotor by not magnetic conductive part, The device main body upper end connection sand screen lower contact of strike-ofing, lower end connects linear motor stator electric by not magnetic conductive part, scraped described Top bearing shell is equiped with sand device main body, combination is strike-off device and lower bearing, the top bearing shell, combination, which are strike-off, device and lower bearing while to be covered On pull bar external cylindrical surface.

Preferably, the device of strike-ofing that combines is composed in series by several devices of strike-ofing, and can scrape off apposition on pull bar surface On silt particle, from clearance hole discharge, prevent silt particle from blocking, using it is multiple strike-off devices series connection, effect of strike-ofing is good, avoids single scrape Sand device is strike-off halfway situation, is advantageous to ensure that the silt particle on pull bar is cleaned always, operating efficiency is also high.It is described The material of top bearing shell and lower bearing is the hard alloy of wear-and corrosion-resistant, and the quantity of the clearance hole is several, the clearance hole Strike-off positioned at combination on the outside of device, the silt that device scrapes that is so advantageous to strike-off can be discharged more preferably faster, and guarantee is strike-off device master It is unimpeded in vivo, block without silt particle.

Compared with prior art, the beneficial effects of the utility model are：1st, mover assembly is segmentation, no matter mover assembly Length have how long, mover assembly can be divided into some, so assembling when, the control in gap is just easy to It ensure that；2nd, axial force caused by magnet passes to mandrel, the transmission of so mandrel by positioning magnetic guiding loop in each unit Power is delivered separately to the magnet of each unit, is so advantageous to share the transmission power of mandrel, so as to extend the damage of bottom magnet Time, extend the service life of linear electric motors indirectly；3rd, underproof situation is found when detection, can be first from each Unit starts to exclude, and is thus effectively reduced the time of detection, so as to greatly alleviate workload；4th, structure design is closed Reason；5th, inlet wire locking tube and inlet wire compressing pipe and motor head are welded and fixed, good fixing effect；6th, multilayer insulating film is twined outside copper cash, Insulation effect is good, avoids the dangerous generation such as electric leakage；7th, combine device of strike-ofing to be composed in series by several devices of strike-ofing, can scrape off Silt particle of the apposition on pull bar surface, discharged from clearance hole, prevent silt particle from blocking；8th, work, can subtract in the environment without magnetic Apposition power of the small dirt on pull bar, ensure sealing effectiveness of strike-ofing.

Brief description of the drawings

Fig. 1 is general assembly schematic diagram of the present utility model.

Fig. 2 is field frame assembly schematic diagram of the present utility model.

Fig. 3 is mover assembly diagram of the present utility model.

Fig. 4 is end of incoming cables assembly diagram of the present utility model.

Fig. 5 is stator pipe nipple schematic diagram of the present utility model.

Fig. 6 is sealing device schematic diagram of the present utility model of strike-ofing.

Wherein：1. field frame assembly, 2. mover assemblies, 3. springs, box cupling on 11. motors, 12. bearing shells, 13. extended lines, 14. Upper extension pipe, 15. sheaths, 16. resin glues, 17. end of incoming cables assemblies, 18. stator pipe nipples, 19. bearing shell overcoats, outside 110. motors Shell, 111. motor followings, 112. times extension pipes, 113. outer tubes, box cupling under 114. motors, 21. mover top connections, 22. magnetic guiding loops, 23. magnet, 24. positioning magnetic guiding loops, 25. holding screws, 26. mover mandrels, 27. mover lower contacts, 171. motor tops, 172. Inlet wire locking tube, 173. sealing rings, 174. inlet wire compressing pipes, 175. copper cash, 176. dielectric films, 181. end caps, 182. silicon steel sheets, 183. silicon steel dish, 184. core pipes, 185. positioning steel bars, 186 coils, 41. sand screens, 42. sand screen lower contacts, 43. pull bars, 44. top bearing shell, 45. combinations are strike-off device, 46. lower bearinges, and 47. strike-off device main body.

Embodiment

The utility model is further described below by non-limiting embodiment and with reference to accompanying drawing：

The first embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The end of incoming cables assembly 17 includes motor top 171, is provided with the motor top 171 and runs through motor top 171 entrance hole, is provided with inlet wire locking tube 172 and inlet wire compressing pipe 174 in the entrance hole, and inlet wire locking tube 172 is by copper Line 175 is locked, and avoids copper cash 175 and is moved in entrance hole, copper cash 175 is pressed on entrance hole by inlet wire compressing pipe 174 It is interior, limit copper cash 175 and moved in entrance hole, ensure that the fixed effect of copper cash 175, in the He of inlet wire locking tube 172 Several sealing rings 173 are provided among inlet wire compressing pipe 174 so that inlet wire locking tube 172 and inlet wire compressing pipe 174 are closely leaned on Together, it ensure that very close to each other in entrance hole, copper cash be provided with the inlet wire locking tube 172 and inlet wire compressing pipe 174 175, the copper cash 175 runs through the entrance hole, the inlet wire locking tube 172 must undergauge process and hold copper cash 175 tightly, it is described enter Line locking tube 172 and inlet wire compressing pipe 174 are welded and fixed with motor top 171, ensure that fixed stability, so as to ensure Motor is effectively smoothly run.

The sealing ring 173 is O-ring seals, and the material of the sealing ring 173 is fluorubber, the inlet wire locking tube 172 and inlet wire compressing pipe 174 be stainless steel tube, material is 304 stainless steels, due to stainless steel have it is good corrosion-resistant Property, so it can make structure member for good and all keep the integrality of engineering design, chromium stainless steel also collects mechanical strength and Gao Yan Stretching property, is easy to the processing and manufacturing of part, can meet the needs of architect and structure design personnel, and 304 stainless steels are mesh Preceding conventional model, i.e. 18/8 stainless steel, the GB trades mark are 0Cr19Ni10.Twined outside the copper cash 175 provided with multilayer insulating film 176, the material of the copper cash 175 is red copper, because copper can bend, deform, it can usually make elbow and joint, smooth Bending allow copper bending at any angle, and copper easily connects, and the material of the dielectric film 176 is Kapton, And must be by repeatedly baking, polyimides has excellent heat endurance, chemical resistance and mechanical performance, usually orange Color, polyimides chemical property is stable, and polyimides need not add fire retardant and prevent from burning, in general polyimides All anti-chemical solvent such as hydro carbons, esters, ethers, alcohols and dichlorodifluoromethan, their also anti-weak acid.

The stator pipe nipple includes core pipe 184, stator pipe nipple end cap 181 is connected with the both ends of the core pipe 184, in institute The outer ring for stating core pipe 184 is set with combination silicon steel sheet 182 and silicon steel dish 183, two end faces up and down of the combination silicon steel sheet 182 It is connected with the lower surface of stator pipe nipple end cap 181 and the upper surface of silicon steel dish 183, is equiped with the silicon steel dish 183 respectively Coil 186, the coil 186 divides for the first phase coil a, the second phase coil b and third phase coil c, in the He of silicon steel dish 183 The outside of stator pipe nipple end cap 181 is equiped with positioning steel bar 185.

The first phase coil a, the second phase coil b are identical with third phase coil c quantity, and the coil 186 is by some Individual monolithic coil composition, the quantity of monolithic coil is designed according to the performance of motor, the direction of winding of adjacent windings 186 Oppositely oriented, the monolithic coil is open circles sheet, hollow to be easily installed after coil 186, and by coil, 186 sets are attached to core On pipe 184, disc-shaped is also, circumferential coiling consistent with the shape of motor core pipe 184, radially twines dielectric film, and the dielectric film is Polyimide insulative film, and must be by repeatedly baking, Kapton is in yellow transparent, relative density 1.39~1.45, is had Prominent high temperature resistant, radiation hardness, resistant to chemical etching and electrical insulation capability, can be used for a long time in 250~280 DEG C of air.

The mandrel 26 is stainless steel solid bar, fine grinding cylinder, two cutting thread, and by screw thread respectively with being connect on mover First 21 and mover lower contact 27 connect, because stainless steel has good corrosion resistance, so it can make structure member for good and all Keep the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing system of part Make, the needs of architect and structure design personnel can be met.Threaded connection, which is that one kind is widely used, to be removably fixedly connected, Have the advantages that simple in construction, connection is reliable, be convenient to mount and dismount, threaded connection typically has self-locking performance, in addition nut and bolt head Frictional force on the supporting surface in portion also has anti-loose effect, thus tighten it is latter as will not release, the axial charging of magnet 23 is described Magnet 23 is made up of samarium-cobalt material, magnet 23 be it is a kind of can attract each other or mutually exclusive material, if in object The tiny molecule in portion can arrange according to equidirectional, and it will become magnet, SmCo as rare-earth permanent magnet, not only have compared with High magnetic energy product, reliable coercivity and good temperature characterisitic, compared with ndfeb magnet, samarium cobalt magnet is more suitable for being operated in In hot environment.

Sand prevention seal device 4 is provided with the motor upper end, the sand prevention seal device 4 includes sand screen 41, pull bar 43 are connected with device main body 47 of strike-ofing, the upper end of sand screen 41 with oil well pump lower contact, are connected in the lower end of the sand screen 41 There is sand screen lower contact 42, the assembly for plunger of the upper end of the pull bar 43 connection oil well pump, lower end connect straight by not magnetic conductive part Line electric mover, the upper end of the device main body 47 connection sand screen lower contact 42 of strike-ofing, lower end connects straight-line electric by not magnetic conductive part Machine stator, top bearing shell 44 is equiped with the device main body 47 of strike-ofing, combines strike-off device 45 and lower bearing 46, the top bearing shell 44th, combination, which is strike-off, device 45 and lower bearing 46 while is sleeved on the external cylindrical surface of pull bar 43.

The device 45 of strike-ofing that combines is composed in series by several devices of strike-ofing, and can scrape off apposition on the surface of pull bar 43 Silt particle, discharged from clearance hole, prevent silt particle from blocking, using multiple device series connection of strike-ofing, effect of strike-ofing is good, avoids single device of strike-ofing Strike-off halfway situation, be advantageous to ensure that the silt particle on pull bar is cleaned always, operating efficiency is also high.The upper axle Watts 44 and lower bearing 46 material be wear-and corrosion-resistant hard alloy, the quantity of the clearance hole is several, the clearance hole Strike-off the outside of device 45 positioned at combination, the silt that device scrapes that is so advantageous to strike-off can be discharged more preferably faster, and guarantee is strike-off device It is unimpeded in main body 47, block without silt particle.

Second of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The end of incoming cables assembly 17 includes motor top 171, is provided with the motor top 171 and runs through motor top 171 entrance hole, is provided with inlet wire locking tube 172 and inlet wire compressing pipe 174 in the entrance hole, and inlet wire locking tube 172 is by copper Line 175 is locked, and avoids copper cash 175 and is moved in entrance hole, copper cash 175 is pressed on entrance hole by inlet wire compressing pipe 174 It is interior, limit copper cash 175 and moved in entrance hole, ensure that the fixed effect of copper cash 175, in the He of inlet wire locking tube 172 Several sealing rings 173 are provided among inlet wire compressing pipe 174 so that inlet wire locking tube 172 and inlet wire compressing pipe 174 are closely leaned on Together, it ensure that very close to each other in entrance hole, copper cash be provided with the inlet wire locking tube 172 and inlet wire compressing pipe 174 175, the copper cash 175 runs through the entrance hole, the inlet wire locking tube 172 must undergauge process and hold copper cash 175 tightly, it is described enter Line locking tube 172 and inlet wire compressing pipe 174 are welded and fixed with motor top 171, ensure that fixed stability, so as to ensure Motor is effectively smoothly run.

The sealing ring 173 is O-ring seals, and the material of the sealing ring 173 is fluorubber, the inlet wire locking tube 172 and inlet wire compressing pipe 174 be stainless steel tube, material is 304 stainless steels, due to stainless steel have it is good corrosion-resistant Property, so it can make structure member for good and all keep the integrality of engineering design, chromium stainless steel also collects mechanical strength and Gao Yan Stretching property, is easy to the processing and manufacturing of part, can meet the needs of architect and structure design personnel, and 304 stainless steels are mesh Preceding conventional model, i.e. 18/8 stainless steel, the GB trades mark are 0Cr19Ni10.Twined outside the copper cash 175 provided with multilayer insulating film 176, the material of the copper cash 175 is red copper, because copper can bend, deform, it can usually make elbow and joint, smooth Bending allow copper bending at any angle, and copper easily connects, and the material of the dielectric film 176 is Kapton, And must be by repeatedly baking, polyimides has excellent heat endurance, chemical resistance and mechanical performance, usually orange Color, polyimides chemical property is stable, and polyimides need not add fire retardant and prevent from burning, in general polyimides All anti-chemical solvent such as hydro carbons, esters, ethers, alcohols and dichlorodifluoromethan, their also anti-weak acid.

The stator pipe nipple includes core pipe 184, stator pipe nipple end cap 181 is connected with the both ends of the core pipe 184, in institute The outer ring for stating core pipe 184 is set with combination silicon steel sheet 182 and silicon steel dish 183, two end faces up and down of the combination silicon steel sheet 182 It is connected with the lower surface of stator pipe nipple end cap 181 and the upper surface of silicon steel dish 183, is equiped with the silicon steel dish 183 respectively Coil 186, the coil 186 divides for the first phase coil a, the second phase coil b and third phase coil c, in the He of silicon steel dish 183 The outside of stator pipe nipple end cap 181 is equiped with positioning steel bar 185.

The first phase coil a, the second phase coil b are identical with third phase coil c quantity, and the coil 186 is by some Individual monolithic coil composition, the quantity of monolithic coil is designed according to the performance of motor, the direction of winding of adjacent windings 186 Oppositely oriented, the monolithic coil is open circles sheet, hollow to be easily installed after coil 186, and by coil, 186 sets are attached to core On pipe 184, disc-shaped is also, circumferential coiling consistent with the shape of motor core pipe 184, radially twines dielectric film, and the dielectric film is Polyimide insulative film, and must be by repeatedly baking, Kapton is in yellow transparent, relative density 1.39~1.45, is had Prominent high temperature resistant, radiation hardness, resistant to chemical etching and electrical insulation capability, can be used for a long time in 250~280 DEG C of air.

The mandrel 26 is stainless steel solid bar, fine grinding cylinder, two cutting thread, and by screw thread respectively with being connect on mover First 21 and mover lower contact 27 connect, because stainless steel has good corrosion resistance, so it can make structure member for good and all Keep the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing system of part Make, the needs of architect and structure design personnel can be met.Threaded connection, which is that one kind is widely used, to be removably fixedly connected, Have the advantages that simple in construction, connection is reliable, be convenient to mount and dismount, threaded connection typically has self-locking performance, in addition nut and bolt head Frictional force on the supporting surface in portion also has anti-loose effect, thus tighten it is latter as will not release, the axial charging of magnet 23 is described Magnet 23 is made up of samarium-cobalt material, magnet 23 be it is a kind of can attract each other or mutually exclusive material, if in object The tiny molecule in portion can arrange according to equidirectional, and it will become magnet, SmCo as rare-earth permanent magnet, not only have compared with High magnetic energy product, reliable coercivity and good temperature characterisitic, compared with ndfeb magnet, samarium cobalt magnet is more suitable for being operated in In hot environment.

Sand prevention seal device 4 is provided with the motor upper end, the sand prevention seal device 4 includes sand screen 41, pull bar 43 are connected with device main body 47 of strike-ofing, the upper end of sand screen 41 with oil well pump lower contact, are connected in the lower end of the sand screen 41 There is sand screen lower contact 42, the assembly for plunger of the upper end of the pull bar 43 connection oil well pump, lower end connect straight by not magnetic conductive part Line electric mover, the upper end of the device main body 47 connection sand screen lower contact 42 of strike-ofing, lower end connects straight-line electric by not magnetic conductive part Machine stator, top bearing shell 44 is equiped with the device main body 47 of strike-ofing, combines strike-off device 45 and lower bearing 46, the top bearing shell 44th, combination, which is strike-off, device 45 and lower bearing 46 while is sleeved on the external cylindrical surface of pull bar 43.

The third embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The end of incoming cables assembly 17 includes motor top 171, is provided with the motor top 171 and runs through motor top 171 entrance hole, is provided with inlet wire locking tube 172 and inlet wire compressing pipe 174 in the entrance hole, and inlet wire locking tube 172 is by copper Line 175 is locked, and avoids copper cash 175 and is moved in entrance hole, copper cash 175 is pressed on entrance hole by inlet wire compressing pipe 174 It is interior, limit copper cash 175 and moved in entrance hole, ensure that the fixed effect of copper cash 175, in the He of inlet wire locking tube 172 Several sealing rings 173 are provided among inlet wire compressing pipe 174 so that inlet wire locking tube 172 and inlet wire compressing pipe 174 are closely leaned on Together, it ensure that very close to each other in entrance hole, copper cash be provided with the inlet wire locking tube 172 and inlet wire compressing pipe 174 175, the copper cash 175 runs through the entrance hole, the inlet wire locking tube 172 must undergauge process and hold copper cash 175 tightly, it is described enter Line locking tube 172 and inlet wire compressing pipe 174 are welded and fixed with motor top 171, ensure that fixed stability, so as to ensure Motor is effectively smoothly run.

The sealing ring 173 is O-ring seals, and the material of the sealing ring 173 is fluorubber, the inlet wire locking tube 172 and inlet wire compressing pipe 174 be stainless steel tube, material is 304 stainless steels, due to stainless steel have it is good corrosion-resistant Property, so it can make structure member for good and all keep the integrality of engineering design, chromium stainless steel also collects mechanical strength and Gao Yan Stretching property, is easy to the processing and manufacturing of part, can meet the needs of architect and structure design personnel, and 304 stainless steels are mesh Preceding conventional model, i.e. 18/8 stainless steel, the GB trades mark are 0Cr19Ni10.Twined outside the copper cash 175 provided with multilayer insulating film 176, the material of the copper cash 175 is red copper, because copper can bend, deform, it can usually make elbow and joint, smooth Bending allow copper bending at any angle, and copper easily connects, and the material of the dielectric film 176 is Kapton, And must be by repeatedly baking, polyimides has excellent heat endurance, chemical resistance and mechanical performance, usually orange Color, polyimides chemical property is stable, and polyimides need not add fire retardant and prevent from burning, in general polyimides All anti-chemical solvent such as hydro carbons, esters, ethers, alcohols and dichlorodifluoromethan, their also anti-weak acid.

The stator pipe nipple includes core pipe 184, stator pipe nipple end cap 181 is connected with the both ends of the core pipe 184, in institute The outer ring for stating core pipe 184 is set with combination silicon steel sheet 182 and silicon steel dish 183, two end faces up and down of the combination silicon steel sheet 182 It is connected with the lower surface of stator pipe nipple end cap 181 and the upper surface of silicon steel dish 183, is equiped with the silicon steel dish 183 respectively Coil 186, the coil 186 divides for the first phase coil a, the second phase coil b and third phase coil c, in the He of silicon steel dish 183 The outside of stator pipe nipple end cap 181 is equiped with positioning steel bar 185.

The first phase coil a, the second phase coil b are identical with third phase coil c quantity, and the coil 186 is by some Individual monolithic coil composition, the quantity of monolithic coil is designed according to the performance of motor, the direction of winding of adjacent windings 186 Oppositely oriented, the monolithic coil is open circles sheet, hollow to be easily installed after coil 186, and by coil, 186 sets are attached to core On pipe 184, disc-shaped is also, circumferential coiling consistent with the shape of motor core pipe 184, radially twines dielectric film, and the dielectric film is Polyimide insulative film, and must be by repeatedly baking, Kapton is in yellow transparent, relative density 1.39~1.45, is had Prominent high temperature resistant, radiation hardness, resistant to chemical etching and electrical insulation capability, can be used for a long time in 250~280 DEG C of air.

The mandrel 26 is stainless steel solid bar, fine grinding cylinder, two cutting thread, and by screw thread respectively with being connect on mover First 21 and mover lower contact 27 connect, because stainless steel has good corrosion resistance, so it can make structure member for good and all Keep the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing system of part Make, the needs of architect and structure design personnel can be met.Threaded connection, which is that one kind is widely used, to be removably fixedly connected, Have the advantages that simple in construction, connection is reliable, be convenient to mount and dismount, threaded connection typically has self-locking performance, in addition nut and bolt head Frictional force on the supporting surface in portion also has anti-loose effect, thus tighten it is latter as will not release, the axial charging of magnet 23 is described Magnet 23 is made up of samarium-cobalt material, magnet 23 be it is a kind of can attract each other or mutually exclusive material, if in object The tiny molecule in portion can arrange according to equidirectional, and it will become magnet, SmCo as rare-earth permanent magnet, not only have compared with High magnetic energy product, reliable coercivity and good temperature characterisitic, compared with ndfeb magnet, samarium cobalt magnet is more suitable for being operated in In hot environment.

The 4th kind of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The end of incoming cables assembly 17 includes motor top 171, is provided with the motor top 171 and runs through motor top 171 entrance hole, is provided with inlet wire locking tube 172 and inlet wire compressing pipe 174 in the entrance hole, and inlet wire locking tube 172 is by copper Line 175 is locked, and avoids copper cash 175 and is moved in entrance hole, copper cash 175 is pressed on entrance hole by inlet wire compressing pipe 174 It is interior, limit copper cash 175 and moved in entrance hole, ensure that the fixed effect of copper cash 175, in the He of inlet wire locking tube 172 Several sealing rings 173 are provided among inlet wire compressing pipe 174 so that inlet wire locking tube 172 and inlet wire compressing pipe 174 are closely leaned on Together, it ensure that very close to each other in entrance hole, copper cash be provided with the inlet wire locking tube 172 and inlet wire compressing pipe 174 175, the copper cash 175 runs through the entrance hole, the inlet wire locking tube 172 must undergauge process and hold copper cash 175 tightly, it is described enter Line locking tube 172 and inlet wire compressing pipe 174 are welded and fixed with motor top 171, ensure that fixed stability, so as to ensure Motor is effectively smoothly run.

The 5th kind of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The stator pipe nipple includes core pipe 184, stator pipe nipple end cap 181 is connected with the both ends of the core pipe 184, in institute The outer ring for stating core pipe 184 is set with combination silicon steel sheet 182 and silicon steel dish 183, two end faces up and down of the combination silicon steel sheet 182 It is connected with the lower surface of stator pipe nipple end cap 181 and the upper surface of silicon steel dish 183, is equiped with the silicon steel dish 183 respectively Coil 186, the coil 186 divides for the first phase coil a, the second phase coil b and third phase coil c, in the He of silicon steel dish 183 The outside of stator pipe nipple end cap 181 is equiped with positioning steel bar 185.

The 6th kind of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

The mandrel 26 is stainless steel solid bar, fine grinding cylinder, two cutting thread, and by screw thread respectively with being connect on mover First 21 and mover lower contact 27 connect, because stainless steel has good corrosion resistance, so it can make structure member for good and all Keep the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing system of part Make, the needs of architect and structure design personnel can be met.Threaded connection, which is that one kind is widely used, to be removably fixedly connected, Have the advantages that simple in construction, connection is reliable, be convenient to mount and dismount, threaded connection typically has self-locking performance, in addition nut and bolt head Frictional force on the supporting surface in portion also has anti-loose effect, thus tighten it is latter as will not release, the axial charging of magnet 23 is described Magnet 23 is made up of samarium-cobalt material, magnet 23 be it is a kind of can attract each other or mutually exclusive material, if in object The tiny molecule in portion can arrange according to equidirectional, and it will become magnet, SmCo as rare-earth permanent magnet, not only have compared with High magnetic energy product, reliable coercivity and good temperature characterisitic, compared with ndfeb magnet, samarium cobalt magnet is more suitable for being operated in In hot environment.

The 7th kind of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

Sand prevention seal device 4 is provided with the motor upper end, the sand prevention seal device 4 includes sand screen 41, pull bar 43 are connected with device main body 47 of strike-ofing, the upper end of sand screen 41 with oil well pump lower contact, are connected in the lower end of the sand screen 41 There is sand screen lower contact 42, the assembly for plunger of the upper end of the pull bar 43 connection oil well pump, lower end connect straight by not magnetic conductive part Line electric mover, the upper end of the device main body 47 connection sand screen lower contact 42 of strike-ofing, lower end connects straight-line electric by not magnetic conductive part Machine stator, top bearing shell 44 is equiped with the device main body 47 of strike-ofing, combines strike-off device 45 and lower bearing 46, the top bearing shell 44th, combination, which is strike-off, device 45 and lower bearing 46 while is sleeved on the external cylindrical surface of pull bar 43.

The 8th kind of embodiment of the present utility model is given in figure：A kind of oil immersion line motor, including field frame assembly 1, Mover assembly 2 and spring 3, the mover assembly 2 are sleeved in the field frame assembly 1, and it is total that the spring 3 is sleeved on the stator Include end of incoming cables assembly 17, several stator pipe nipple 18, axles in into 1 and positioned at the lower section of mover assembly 2, the field frame assembly 1 Watts 12, upper extension pipe 14, lower extension pipe 112 and outer tube 113, the end of incoming cables assembly 17 are welded and fixed with motor top 171, The outside of the end of incoming cables assembly 17 is equiped with sheath 15, and resin glue is provided between the end of incoming cables assembly 17 and sheath 15 16, the stator pipe nipple 18 is welded together by bearing shell overcoat 19, described outer in the bearing shell overcoat 19 built with bearing shell 12 Pipe 113 is sleeved on the outside of the stator pipe nipple 18 after series welding, and upper end is welded with motor top 171, lower end and motor following 111 Welding, the upper upper end of extension pipe 14 are connected with box cupling on motor 11, and lower end is connected with motor top 171, on the motor Box cupling 11 is connected built with bearing shell 12, the lower upper end of extension pipe 112 with motor following 111, and lower end connects with box cupling under motor 114 Connect, spring 3 is housed in the lower endoporus bottom of extension pipe 112；The mover assembly 2 includes connecing under mover top connection 21, mover First 27 and mandrel 26, the mover top connection 21 be connected to the upper end of mandrel 26, the mover lower contact 27 is connected under mandrel 26 End, is sequentially provided with several magnetic guiding loops 22 and magnet 23, the quantity of the magnetic guiding loop 22 and magnet 23 is on the mandrel 26 Consistent, it is divided into some units, each unit end vertically among the mover top connection 21 and mover lower contact 27 A positioning magnetic guiding loop 24 is filled, the positioning magnetic guiding loop 24 is withstood on mandrel 26.

Sand prevention seal device 4 is provided with the motor upper end, the sand prevention seal device 4 includes sand screen 41, pull bar 43 are connected with device main body 47 of strike-ofing, the upper end of sand screen 41 with oil well pump lower contact, are connected in the lower end of the sand screen 41 There is sand screen lower contact 42, the assembly for plunger of the upper end of the pull bar 43 connection oil well pump, lower end connect straight by not magnetic conductive part Line electric mover, the upper end of the device main body 47 connection sand screen lower contact 42 of strike-ofing, lower end connects straight-line electric by not magnetic conductive part Machine stator, top bearing shell 44 is equiped with the device main body 47 of strike-ofing, combines strike-off device 45 and lower bearing 46, the top bearing shell 44th, combination, which is strike-off, device 45 and lower bearing 46 while is sleeved on the external cylindrical surface of pull bar 43.The combination strike-offs device 45 by some Individual device of strike-ofing is composed in series, and can scrape off silt particle of the apposition on the surface of pull bar 43, is discharged from clearance hole, is prevented silt particle from hindering Plug, using multiple devices series connection of strike-ofing, effect of strike-ofing is good, avoids single device of strike-ofing and strike-offs halfway situation, is advantageous to always Ensure that the silt particle on pull bar is cleaned, operating efficiency is also high.The material of the top bearing shell 44 and lower bearing 46 is wear-resisting Corrosion-resistant hard alloy, the quantity of the clearance hole are several, and the clearance hole is located at combination and strike-off the outside of device 45, so has More preferably it can be discharged faster beneficial to the silt that device of strike-ofing scrapes, guarantee is strike-off unimpeded in device main body 47, is blocked without silt particle.

Above-described embodiment elaborates to the utility model.Certainly, described above is not to limit of the present utility model System, the utility model are also not limited to above-mentioned example, and person skilled is made in essential scope of the present utility model Change, remodeling, addition are reduced, replaced, and fall within the scope of protection of the utility model.

Claims (8)

1. a kind of oil immersion line motor, including field frame assembly（1）, mover assembly（2）And spring（3）, the mover assembly（2）Set Mounted in the field frame assembly（1）It is interior, the spring（3）It is sleeved on the field frame assembly（1）It is interior and be located at mover assembly（2）Under Side, it is characterised in that：The field frame assembly（1）Including end of incoming cables assembly（17）, several stator pipe nipples（18）, bearing shell（12）、 Upper extension pipe（14）, lower extension pipe（112）And outer tube（113）, the end of incoming cables assembly（17）With motor top（171）Welding is solid It is fixed, in the end of incoming cables assembly（17）Outside be equiped with sheath（15）, in the end of incoming cables assembly（17）And sheath（15）It Between be provided with resin glue（16）, the stator pipe nipple（18）Pass through bearing shell overcoat（19）Weld together, in the bearing shell overcoat （19）Built with bearing shell（12）, the outer tube（113）It is sleeved on the stator pipe nipple after series welding（18）Outside, upper end and motor Top（171）Welding, lower end and motor following（111）Welding, the upper extension pipe（14）Upper end and box cupling on motor（11）Even Connect, lower end and motor top（171）Connection, the box cupling on the motor（11）Built with bearing shell（12）, the lower extension pipe （112）Upper end and motor following（111）Connection, lower end and box cupling under motor（114）Connection, in the lower extension pipe（112）It is interior Hole bottom is equipped with spring（3）；The mover assembly（2）Including mover top connection（21）, mover lower contact（27）And mandrel（26）, The mover top connection（21）It is connected to mandrel（26）Upper end, the mover lower contact（27）It is connected to mandrel（26）Lower end, The mandrel（26）On be sequentially provided with several magnetic guiding loops（22）And magnet（23）, the magnetic guiding loop（22）And magnet（23）Number Amount is consistent, in the mover top connection（21）With mover lower contact（27）Centre is divided into some units vertically, each Unit end fills a positioning magnetic guiding loop（24）, the positioning magnetic guiding loop（24）Withstand on mandrel（26）On.

2. oil immersion line motor according to claim 1, it is characterised in that：The end of incoming cables assembly（17）Including on motor Head（171）, in the motor top（171）It is provided with and runs through motor top（171）Entrance hole, be provided with the entrance hole Inlet wire locking tube（172）With inlet wire compressing pipe（174）, in the inlet wire locking tube（172）With inlet wire compressing pipe（174）Centre is set There are several sealing rings（173）, in the inlet wire locking tube（172）With inlet wire compressing pipe（174）It is interior to be provided with copper cash（175）, institute State copper cash（175）Through the entrance hole, the inlet wire locking tube（172）Palpus undergauge is processed and holds copper cash tightly（175）, it is described enter Line locking tube（172）With inlet wire compressing pipe（174）With motor top（171）It is welded and fixed.

3. oil immersion line motor according to claim 2, it is characterised in that：The sealing ring（173）For O-ring seals, The sealing ring（173）Material be fluorubber, the inlet wire locking tube（172）With inlet wire compressing pipe（174）It is stainless steel Pipe, material is 304 stainless steels, in the copper cash（175）Twine outside provided with multilayer insulating film（176）, the copper cash（175）Material Expect for red copper, the dielectric film（176）Material be Kapton, and must by repeatedly baking.

4. oil immersion line motor according to claim 1, it is characterised in that：The stator pipe nipple（18）Including core pipe （184）, in the core pipe（184）Both ends be connected with stator pipe nipple end cap（181）, in the core pipe（184）Outer ring suit There is combination silicon steel sheet（182）With several silicon steel dish（183）, the combination silicon steel sheet（182）Two end faces up and down respectively with Stator pipe nipple end cap（181）Lower surface and silicon steel dish（183）Upper surface connection, in the silicon steel dish（183）Inside it is equiped with Coil（186）, the coil（186）It is divided into the first phase coil, the second phase coil and third phase coil, in the silicon steel dish （183）With stator pipe nipple end cap（181）Outside is equiped with positioning steel bar（185）.

5. oil immersion line motor according to claim 4, it is characterised in that：First phase coil, the second phase coil and The quantity of third phase coil is identical, the coil（186）It is made up of several monolithic coils, adjacent windings（186）Coiling side To it is oppositely oriented, the monolithic coil is open circles sheet, and circumferential coiling radially twines dielectric film, and the dielectric film is polyamides Imines dielectric film.

6. oil immersion line motor according to claim 1, it is characterised in that：The mandrel（26）For stainless steel solid bar, Fine grinding cylinder, two cutting thread, and by screw thread respectively with mover top connection（21）With mover lower contact（27）Connection, the magnetic Iron（23）Axial charging, the magnet（23）It is made up of samarium-cobalt material, the magnetic guiding loop（22）And magnet（23）Alternate string successively Mounted in mandrel（26）On, adjacent two magnet（23）Magnetic pole it is opposite.

7. oil immersion line motor according to claim 1, it is characterised in that：Filled in the motor upper end provided with sand prevention seal Put（4）, the sand prevention seal device（4）Including sand screen（41）, pull bar（43）With device main body of strike-ofing（47）, the sand screen （41）Upper end is connected with oil well pump lower contact, in the sand screen（41）Lower end be connected with sand screen lower contact（42）, it is described Pull bar（43）The assembly for plunger of upper end connection oil well pump, lower end connect linear motor rotor by not magnetic conductive part, described to strike-off Device main body（47）Upper end connects sand screen lower contact（42）, lower end connects linear motor stator electric by not magnetic conductive part, scraped described Sand device main body（47）Clearance hole is provided with, in the device main body of strike-ofing（47）Inside it is equiped with top bearing shell（44）, combination strike-offs device （45）And lower bearing（46）, the top bearing shell（44）, combination strike-offs device（45）And lower bearing（46）It is sleeved on pull bar simultaneously （43）On external cylindrical surface.

8. oil immersion line motor according to claim 7, it is characterised in that：It is described to combine device of strike-ofing（45）Scraped by several Sand device is composed in series, the top bearing shell（44）And lower bearing（46）Material be wear-and corrosion-resistant hard alloy, the clearance hole Quantity be several, the clearance hole is located at combination and strike-off device（45）Outside.