CN104753284B - Latent oil permagnetic synchronous motor - Google Patents
Latent oil permagnetic synchronous motor Download PDFInfo
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- CN104753284B CN104753284B CN201310739094.XA CN201310739094A CN104753284B CN 104753284 B CN104753284 B CN 104753284B CN 201310739094 A CN201310739094 A CN 201310739094A CN 104753284 B CN104753284 B CN 104753284B
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- magnet steel
- oil
- rotor
- motor
- stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Stator and rotor are correspondingly arranged in a kind of latent oil permagnetic synchronous motor, including electric machine casing, electric machine casing, the two ends of electric machine casing seal and are connected by coupling arrangement with other external device (ED)s respectively, are integrally formed the housing unit of formula structure；Stator and rotor are respectively the stator assembly and rotor assembly of multi-section type structure, and stator assembly is fixed on housing unit, and rotor assembly is located in inside stator assembly；Injection fluid in housing unit.The present invention is using the motor shell component of integral structure, and the stator assembly and rotor assembly of multi-section type structure by using the setting of 10 pole rotors, 12 groove stators, optimize electromagnetic scheme, so as to improve operational reliability and motor performance；Hollow spindle makes oil circulation can be achieved in motor room body, so as to solve heat dissipation problem；Low-speed big can be achieved, it is adaptable to the operating mode that various undergrounds are pumped by electric pump, be particularly suitable for use in screw pump oil pumping environment.
Description
Technical field
The present invention relates to a kind of latent oil permagnetic synchronous motor, belong to machinery manufacturing technology field.
Background technology
Submersible electric machine with oil is widely used to drive submersible electric pump to draw on current China and other oil producing countries of the world, oil field
Take crude oil.Electric Submersible Pump System is the visual plant of oil field production, and traditional its power source of Electric Submersible Pump System is mainly asynchronous
There is following problem in oil recovery process matched therewith in motor, existing oil extraction system：
One when being that asynchronous motor band centrifugal pump is supporting, because motor speed is less than synchronous rotational speed, electric efficiency and power because
Number is relatively low；
Two be asynchronous motor band screw pump it is supporting when, because motor speed is too high, it is difficult to which speed is dropped to by decelerator
Screw pump use demand scope, even if there is the decelerator used, also substantially increases cost for oil production, while also reducing oil recovery effect
Rate, and directly affect system lifetim；
Three be that asynchronous motor generally uses VFC, and when the alternating current long-distance transmissions on ground are to underground, energy is damaged
Consumption is serious, motor control precision is substantially reduced, so as to also reduce system effectiveness.
Recently, latent oil permagnetic synchronous motor with its it is energy-efficient applied, needed to be usually placed in underground according to operation,
The surrounding of equipment is the oil mixing with water liquid of high pressure.
The two ends coupling head of existing latent oil permagnetic synchronous motor does not have sealing typically；The stator and rotor of motor are usual
For single-unit structure, this structure is when requiring that power of motor is big, and cost is greatly increased, because submersible electric machine with oil is slim-lined construction, because
This anufacturability can also be reduced；Existing motor does not almost account for heat dissipation problem, when requiring motor by high current, due to
It can not be shed in time in the heat produced by downhole electrical motor, so as to easily burn out motor.
The patent of Application No. 200910137764.4 discloses a kind of multi-section servo submersible motor, although the motor rotor
It is also multi-section type structure with stator, electric machine casing is also more piece segmented, although the motor uses many by rotor and stator
The problem of scheme of section formula solves raising power of motor grade to a certain extent, but the shell of multi-section type considerably increases manufacture
With packaging technology difficulty and cost.In addition, it is often more important that the requirement that the shell of multi-section type is also resulted in motor seal is big
Big increase so that the sealing of whole motor is deteriorated.In addition, the two adjacent sections armature spindle of the motor is coupled by shaft coupling,
Therefore the life-span of shaft coupling can directly affect reliability.
The patent of Application No. 201010614682.7 discloses a kind of low-speed direct-drive permanent magnet synchronous submersible motor, the motor
For single-unit formula motor, the motor uses the pole of rotor 14, the groove scheme of stator 18, and low speed, but big torsion are solved the problems, such as to a certain extent
Square output problem fails to fine solution.The number of poles of the rotor and the slot number of stator are all bigger than normal, manufacturing cost can be caused big
Big increase, at the same from the angle of motor electromagnetic scheme be not prioritization scheme yet.Also, do not account for underground sealing problem and electricity
Machine heat dissipation problem.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of latent oil permanent magnet synchronous electric in view of the shortcomings of the prior art
Machine, using the motor shell component of integral structure, the stator assembly and rotor assembly of multi-section type structure, by using 10
The setting of pole rotor, 12 groove stators, optimizes electromagnetic scheme, so as to improve operational reliability and motor performance；Hollow spindle
Make oil circulation can be achieved in motor room body, so as to solve heat dissipation problem；Low-speed big can be achieved, it is adaptable to various undergrounds
The operating mode pumped by electric pump.
The technical problem to be solved of the present invention is achieved by the following technical solution：
Stator and rotor are correspondingly arranged in a kind of latent oil permagnetic synchronous motor, including electric machine casing, electric machine casing, it is described
The two ends of electric machine casing seal and are connected by coupling arrangement with other external device (ED)s respectively, are integrally formed the housing of formula structure
Component；The stator and rotor are respectively the stator assembly and rotor assembly of multi-section type structure, and the stator assembly is consolidated
It is scheduled on housing unit, the rotor assembly is located in inside stator assembly, the stator assembly and rotor assembly
Between compress positioning；Injection fluid in housing unit.
The housing unit includes housing and is separately positioned on the output end coupling head and aft end coupling head at housing two ends,
It is connected between the output connecting head and housing by thrust bearing；Described output end coupling head is used for same with the latent oil permanent magnetism
Protector, the pump connection of outside motor are walked, oil-submersible cable is accessed, and to enclosure interior oiling；Described aft end coupling head is used
It is connected in installation encoder, and with outside sealing device and controller.
The stator assembly includes by internode press-fiting each other between multiple single-unit iron cores, two adjacent single-unit iron cores
Multi-section type stator core is connected to form, compression is set gradually respectively to both sides from center at the two ends of the multi-section type stator core
Ring and jump ring, multi-section type stator core is compressed and positioned.
The rotor assembly includes the magnet steel assembly being set on rotor main shaft, and the two ends of rotor main shaft are respectively equipped with
Rotor output axle sleeve and rotor aft end axle sleeve；Described magnet steel assembly is multi-section type structure, by multiple single magnet steel groups
It is connected to each other and is formed by floating bearing, each single magnet steel group is circumferentially constituted by 10 magnet steel are evenly distributed.
In 10 magnet steel of the single magnet steel group, including 8 standard magnet steel and 2 keyway magnet steel；The standard magnet steel
The step combination being provided with the axial direction on step, multiple standard magnet steel and keyway magnet steel respectively with the two ends of keyway magnet steel is circularized
Radial compaction ring is set on the annular groove between groove, two neighboring single magnet steel group；The two ends of the single magnet steel group, are additionally provided with
Axial compression ring.
The output end coupling head includes body, and one end of the body is provided with pipe screw thread, for being connected with the housing,
The middle part of body is provided with oil filler point, and the other end of body is provided with the screwed hole combination for connecting；
The inside of the body is provided with connection screwed hole, delivery outlet, bearing mounting hole, pin connection holes, axially extending bore, arc
Inclined-plane, cable interface, groove, pipe screw thread, axial oil-through hole and radial direction oil filler point；The connection screwed hole is evenly distributed on output
End flanges circumference；Output motor main shaft output end is provided with the delivery outlet；Thrust bearing is installed in the bearing mounting hole
Positioning；The thrust disc of the thrust bearing is fixed in the pin connection holes；Motor output shaft is located in the axially extending bore；
Input cable enters housing by the cable interface through curve slope；O-ring seal is provided with groove；The housing passes through pipe
Screw thread is tightly connected with output end coupling head；Fluid is transported to motor internal by radial direction oil filler point and enters axial oil-through hole.
Described single-unit iron core includes silicon steel sheet, and the silicon steel sheet is provided with stator slot, arc groove, coiling fluting and shell
Body connection slot, forms the open flume type stator core construction of 12 grooves；Winding coil is arranged on stator slot, and cable is recessed through circular arc
Groove, silicon steel sheet is connected by housing connection slot with stator core and housing.
The rotor main shaft is slim-lined construction, including output end, interlude and aft end；Described output end is spline
Axle；Described interlude is hollow shaft, radially uniform that multiple oil-through holes are distributed with, and is additionally provided with for the thin of assemble rotor assembly
Long keyway；Described aft end is hollow shaft；Described output end is provided with spline, consent, groove, radial direction oil-through hole and sky
Arbor hole, the spline connection of the spline and motor output shaft；Installed thrust bearing in groove；Described interlude is provided with
Radial direction oil-through hole and hollow axis hole；Described aft end is provided with radial direction oil-through hole, hollow axis hole and encoder mounting hole.
Described keyway magnet steel is circular arc sheet structure, includes outer surface and the inner surface of arc, the both sides in outer surface
Edge, prolongs its axial direction and is respectively equipped with step surface, in a lateral edges of inner surface, prolongs its radial direction and is provided with for making magnet steel
The keyway circumferentially positioned.
In summary, the present invention provides a kind of latent oil permagnetic synchronous motor, using the motor shell component of integral structure,
The stator assembly and rotor assembly of multi-section type structure, by using the setting of 10 pole rotors, 12 groove stators, optimize electromagnetism
Scheme, so as to improve motor performance；Rotor main shaft is hollow shaft, by way of the oiling into motor internal nacelle, is realized
Oil circulation in motor room body, so as to solve heat dissipation problem；The latent oil permagnetic synchronous motor is designed using assembly module,
Improve packaging technology, it is simple in construction and can flexible design as needed；In addition, the latent oil permagnetic synchronous motor of the present invention
Low-speed big can be achieved, therefore underground drives the effect of pump reliable and stable, it is adaptable to it is all to be pumped in underground by electric pump
Scope, be particularly suitable for use in screw pump oil pumping occasion.
Below in conjunction with the accompanying drawings and specific embodiment, technical scheme is described in detail.
Brief description of the drawings
Fig. 1 is one of latent oil permagnetic synchronous motor overall structure figure of the present invention；
Fig. 2 is the two of the latent oil permagnetic synchronous motor overall structure figure of the present invention；
Fig. 3 a are the enlarged drawing of latent oil permagnetic synchronous motor output end in Fig. 1；
Fig. 3 b are the enlarged drawing of latent oil permagnetic synchronous motor aft end in Fig. 2；
Fig. 4 is the overall explosive view of latent oil permagnetic synchronous motor in the present invention；
Fig. 5 is the composition Structure explosion diagram of housing unit in Fig. 4；
Fig. 6 a are one of structure chart of output end coupling head in Fig. 5；
Fig. 6 b are the two of the structure chart of output end coupling head in Fig. 5；
Fig. 7 is the sectional view of output end coupling head in Fig. 5；
Fig. 8 is the structural representation of aft end coupling head in Fig. 5；
Fig. 9 is the sectional view of aft end coupling head in Fig. 5；
Figure 10 is the composition explosive view of stator assembly in Fig. 4；
Figure 11 is the single-unit core structure schematic diagram of stator in Figure 10；
Figure 12 is the silicon steel structure figure of stator core in Figure 11；
Figure 13 is the Structure explosion diagram of rotor assembly in Fig. 4；
Figure 14 is the primary structure schematic diagram of rotor in Figure 13；
Figure 15 is the partial enlarged drawing of rotor in Figure 14；
Figure 16 is the composition explosive view of rotor output axle sleeve in Figure 13；
Figure 17 is the overall structure figure of output end axle sleeve in Figure 16；
Figure 18 is the sectional view of output end axle sleeve in Figure 16；
Figure 19 is the composition explosive view of rotor aft end axle sleeve in Figure 13；
Figure 20 is the overall structure figure of aft end axle sleeve in Figure 19；
Figure 21 is the sectional view of aft end axle sleeve in Figure 19；
Figure 22 is one of structure chart of rotor main shaft in Figure 13；
Figure 23 is the two of the structure chart of rotor main shaft in Figure 13；
Figure 24 a are the output end enlarged drawing of rotor main shaft in Figure 22；
Figure 24 b are the aft end enlarged drawing of rotor main shaft in Figure 23；
Figure 24 c are the interlude enlarged drawing of rotor main shaft in Figure 22；
Figure 25 is the sectional view of rotor main shaft in Figure 13；
Figure 26 a are the output end enlarged drawing of rotor main shaft in Figure 25；
Figure 26 b are the aft end enlarged drawing of rotor main shaft in Figure 25；
Figure 26 c are the interlude enlarged drawing of rotor main shaft in Figure 25；
Figure 27 is the Structure explosion diagram of rotor magnetic steel assembly in Figure 13；
Figure 28 is the structural representation of Figure 27 transfer substandard magnet steel；
Figure 29 is the end view drawing of Figure 27 transfer substandard magnet steel；
Figure 30 is the sectional view of Figure 27 transfer substandard magnet steel；
Figure 31 is the structural representation of rotor key groove magnet steel in Figure 27；
Figure 32 is the end view drawing of rotor key groove magnet steel in Figure 27；
Figure 33 is the single magnet steel group layout viewing of rotor in Figure 27；
Figure 34 is main shaft, stator and rotor assembly relation schematic diagram.
Embodiment
Fig. 1 is one of overall structure diagram of latent oil permagnetic synchronous motor of the present invention.Fig. 2 for the present invention latent oil forever
The two of the overall structure diagram of magnetic-synchro motor.Fig. 3 a are the enlarged drawing of latent oil permagnetic synchronous motor output end in Fig. 1, Fig. 3 b
For the enlarged drawing of latent oil permagnetic synchronous motor aft end in Fig. 2.Fig. 3 a, Fig. 3 b respectively illustrate the two of latent oil permagnetic synchronous motor
End.As shown in Fig. 1 to Fig. 3 b, the present invention provides a kind of latent oil permagnetic synchronous motor 1000, and the latent oil permagnetic synchronous motor is group
Partization is designed, and its two ends is respectively equipped with coupling arrangement, and one end is output end coupling head, convenient to be connected with protector, pump etc.；It is another
Hold as aft end coupling head, it is convenient to be connected with encoder, sealing device, controller etc..
Latent oil permagnetic synchronous motor in the present invention is that housing is integral type, and stator and rotor are respectively the new of multi-section type
Structure, and rotor main shaft is that oil circulation can be achieved in hollow shaft, motor room body, and electromagnetic scheme uses the pole of rotor 10, stator
12 groove schemes.
Latent oil permagnetic synchronous motor in the present invention improves process program, so as to improve reliability；Optimize electromagnetism
Scheme, so as to improve motor performance；Oil circulation structure is devised, so as to solve heat dissipation problem.
The latent oil permagnetic synchronous motor of the present invention can realize low-speed big, therefore underground drives the effect of pump reliably steady
It is fixed, it is adaptable to all scopes pumped in underground by electric pump, it is particularly suitable for use in screw pump oil pumping occasion.
Fig. 4 is the overall explosive view of the latent oil permagnetic synchronous motor of the present invention.As shown in figure 4, latent oil permagnetic synchronous motor
It is made up of housing unit 100, stator assembly 200, rotor assembly 300.
Fig. 5 is the composition Structure explosion diagram of housing unit 100 in Fig. 4.As shown in figure 5, housing unit 100 is joined by output end
Joint 110, thrust bearing 120, housing 130, aft end coupling head 140 are constituted.Output end coupling head 110 be used for protector,
The mechanical parts such as pump are connected, and access oil-submersible cable, and to motor internal oiling；Thrust bearing 120 is used to bear suffered by motor
Axial force；Aft end coupling head 140 is used to install encoder, connection sealing device and controller.
Fig. 6 a are one of structure chart of output end coupling head 110 in Fig. 5, and Fig. 6 b are the knot of output end coupling head 110 in Fig. 5
The two of composition.Fig. 6 a, Fig. 6 b respectively illustrate the two ends of output end coupling head 110.As shown in Figure 6 a, output end coupling head 110
One end be provided with pipe screw thread 111, it is convenient to be connected with electric machine casing 130；Again oil filler point is provided with the middle part of output end coupling head 110
112, it is easy to motor internal oiling, and fluid plays motor internal thermolysis by circulation.As shown in Figure 6 b, output end joins
The other end of joint 110 is combined provided with screwed hole, and the convenient external component such as with protector, pump is connected, while being provided with curve slope
113 and cable input interface 114, oil-submersible cable can be accessed motor internal.
Fig. 7 is the sectional view of output end coupling head 110 in Fig. 5.As shown in fig. 7, output end coupling head 110 is by connection screw thread
Hole 115, delivery outlet 116, bearing mounting hole 117, pin connection holes 118, axially extending bore 119, curve slope 113, cable interface
114th, groove 109, pipe screw thread 111, axial oil-through hole 108, radial direction oil filler point 112 are constituted.Connection screwed hole 115 is evenly distributed on
Output flange circumference, for external components such as connection protector, pumps；Delivery outlet 116 is used for output motor main shaft output end, is
It is easily installed bearing etc. and space in hole is provided；Bearing mounting hole 117 is used for location and installation thrust bearing 120；Pin connection holes 118 are used
In the thrust disc of fixed thrust bearing 120；Axially extending bore 119 is used for through motor output shaft；Curve slope 113 is used for for input
Cable reserves angular region into cable interface；Cable interface 114 is used to access oil-submersible cable；It is close that groove 109 is used for mounting O-shaped
Seal, plays sealing function；Pipe screw thread 111 is used to be connected sealing with electric machine casing 130；Axial oil-through hole 108 is motor oil circuit,
For the fluid that oil filler point 112 enters to be transported into motor internal nacelle；Radial direction oil filler point 112 be motor pouring orifice, for
Motor internal nacelle oiling.
Fig. 8 is the structural representation of aft end coupling head 140 in Fig. 5, as shown in figure 8, one end of aft end coupling head 140
It is convenient that encoder or connection controller are installed provided with screwed hole combination；The other end of aft end coupling head 140 is provided with pipe screw thread,
It is convenient to be connected with electric machine casing 130.
Fig. 9 is the sectional view of aft end coupling head 140 in Fig. 5.As shown in figure 9, aft end coupling head 140 is by conical bore
141st, pipe screw thread 142, groove 143, screwed hole combination 144, tail hole 145 are constituted.Conical bore 141 is used to reserve out space of lines；
Pipe screw thread 142 is used to be connected sealing with electric machine casing 130；Groove 3 plays sealing function for mounting O-shaped sealing ring；Screwed hole
Combination 144 is used to install encoder connection shell；Tail hole 145 is used for through and out electric machine main shaft aft end.
Latent oil permagnetic synchronous motor its stator in the present invention is multi-section type structure, is first superimposed in order by silicon steel sheet and forms list
Iron core is saved, then multi-section type iron core assembly is combined into by the connection of several single-unit iron cores, more piece is constituted finally by coil windings
Formula stator.Wherein, silicon steel sheet is 12 slot structures slotted provided with coiling, constitutes the latent oil permanent-magnetic synchronous motor stator of the present invention
12 groove schemes.
Figure 10 is the composition explosive view of stator assembly 200 in Fig. 4.As shown in Figure 10, latent oil permagnetic synchronous motor is determined
Subgroup zoarium 200 press-fits 204 and 206, iron by jump ring 201 and 209, hold-down ring 202 and 208, single-unit iron core 203 and 207, internode
Core assembly 205 is constituted, and constitutes multi-section type stator.Jump ring 201 and 209 is used for clamping stator core, prevents axial float；Compress
Ring 202 and 208 is used to clamp more piece iron core assembly；Single-unit iron core 203 and 207 is used to constitute multi-section type stator core；Internode
Press-fit 204 and 206 between two single-unit iron cores, the floating bearing inside protection.
Figure 11 is the structural representation of stator single-unit iron core 203,207 in Figure 10, and Figure 12 is stator single-unit iron core in Figure 11
Silicon steel structure figure.As shown in figure 12, the silicon steel sheet of stator single-unit iron core 203 by stator slot 2031, arc groove 2032, around
Line fluting 2033, housing connection slot 2034 are constituted, and form open flume type stator core, 12 slot structures.Stator slot 2031 is used to install
Winding coil, its number is decided by electromagnetic scheme；Arc groove 2032 is used for through cable；Coiling fluting 2033 is used for electromagnetism side
Case adjusts and facilitates wire winding；Housing connection slot 2034 is used to pass through keyway connecting stator iron core and electric machine casing.
Latent oil permagnetic synchronous motor its rotor in the present invention is multi-section type structure, in the output end and aft end of rotor
Output end axle sleeve and aft end axle sleeve are respectively equipped with, for sealing.In interlude, circle is evenly arranged in by 10 magnet steel first
In week, single magnet steel group is formed, then, several single magnet steel groups axially connect and compose single magnet steel assembly, finally, Mei Gedan
Rotor magnetic steel body is connected as by floating bearing between row's magnet steel assembly.Wherein, single 10 magnet steel are constituted in the present invention and dived
The pole scheme of rotor 10 of oily permagnetic synchronous motor.In addition, rotor main shaft is hollow shaft structure, and it is uniformly provided with radial direction oil-through hole,
Hollow axis hole can flow through fluid and be circulated, and play motor internal thermolysis.
Figure 13 is the Structure explosion diagram of rotor assembly 300 in Fig. 4.As shown in figure 13, turn of latent oil permagnetic synchronous motor
Subgroup zoarium 300 is by rotor output axle sleeve 301, magnet steel assembly 302, rotor main shaft 303,304 groups of rotor aft end axle sleeve
Into.
Figure 14 is the primary structure schematic diagram of rotor in Figure 13, and Figure 15 is the partial enlargement of rotor primary structure in Figure 14
Figure.As shown in figure 14, latent oil permanent magnet synchronous motor rotor magnetic steel part of the invention is multi-section type structure.As shown in figure 15, it is single
Arrange in magnet steel combination, magnet steel distribution is surround by multi-row-type magnet steel group to be formed.
Figure 16 is the composition explosive view of rotor output axle sleeve in Figure 13.As shown in figure 16, rotor output axle sleeve is by defeated
Go out to hold axle sleeve 3011, insulating sleeve 3012, jump ring 3013 and 3015, guard ring 3014, axle sleeve 3016, axle sleeve 3017 to constitute.Output
End axle sleeve 3011 is used to seal；Insulating sleeve 3012 is used to insulate with motor stator winding outlet；Jump ring 3013 and 3015 is distinguished
For preventing insulating sleeve 3012 and the axial float of guard ring 3014；The material of guard ring 3014 is glass stringing, for protecting output end
Axle sleeve 3011；Axle sleeve 3016 is used to coordinate with motor output shaft and output end axle sleeve 3011；Axle sleeve 3017 is used for axially position.
Figure 17 is the overall structure figure of output end axle sleeve 3011 in Figure 16, and Figure 18 is that output end axle sleeve 3011 is cutd open in Figure 16
View.As shown in figure 18, output end axle sleeve 3011 is by delivery outlet 3011-1, oil-through hole 3011-2, interstitial hole 3011-3, macropore
3011-4, groove 3011-5 and 3011-6 are constituted.Delivery outlet 3011-1 is used to coordinate with motor output end axle；Oil-through hole 3011-2
For constituting dynamo oil inner loop oil circuit；Interstitial hole 3011-3 and macropore 3011-4 is used for through motor output shaft, and passes through
Fluid；Groove 3011-5 and 3011-6 are used to install axial locator card spring.
Figure 19 is the composition explosive view of rotor aft end axle sleeve 304 in Figure 13.As shown in figure 19, rotor aft end axle sleeve by
Jump ring 3041 and 3043, guard ring 3042, axle sleeve 3044, insulating sleeve 3045, aft end axle sleeve 3046, axle sleeve 3047 are constituted.Card
Spring 3041 and 3043 is respectively used to prevent insulating sleeve 3045 and the axial float of guard ring 3042；Guard ring 3042 is used to protect aft end
Axle sleeve；Axle sleeve 3044 is used to coordinate with motor output shaft and output end axle sleeve 3011；Insulating sleeve 3045 is used for and motor stator
Winding outlet is insulated；Aft end axle sleeve 3046 is used to seal；Axle sleeve 3047 is used for axially position.
Figure 20 is the overall structure figure of aft end axle sleeve 3046 in Figure 19, and Figure 21 is that aft end axle sleeve 3046 is cutd open in Figure 19
View.As shown in figure 21, aft end axle sleeve is by delivery outlet 3046-1, oil-through hole 3046-2 and 3046-4, interstitial hole 3046-3, mistake
Spend hole 3046-5, macropore 3046-6, groove 3046-7 and 3046-8 composition.It is empty that delivery outlet 3046-1 is used for output motor aft end
Heart axle；Oil-through hole 3046-2,3046-4 are used to constitute dynamo oil inner loop oil circuit；Interstitial hole 3046-3 is used for and motor afterbody
Axle is held to coordinate；Excessive hole 3046-5 is used to leave gap between motor aft end axle and aft end axle sleeve 304；Macropore 6 be used for
Axle sleeve 3046-4 coordinates；Groove 3046-7 and 3046-8 are used to install axial locator card spring.
Figure 22 is one of structure chart of rotor main shaft 303 in Figure 13, Figure 23 be rotor main shaft 303 in Figure 13 structure chart it
Two.As shown in Figure 22 and Figure 23, rotor main shaft 303 is generally in slim-lined construction.
Figure 24 a are the output end enlarged drawing of rotor main shaft 303 in Figure 22, and Figure 24 b are the afterbody of rotor main shaft 303 in Figure 23
Enlarged drawing is held, Figure 24 c are the interlude enlarged drawing of rotor main shaft 303 in Figure 22.As shown in fig. 24 a, the output of rotor main shaft 303
Hold as splined shaft；As shown in Figure 24 b, the aft end of rotor main shaft 303 is hollow shaft；As shown in Figure 24 c, on rotor main shaft 303
Being respectively equipped with installation aperture was used for fluid, and elongated key grooves are assembled for rotor.
Figure 25 is the sectional view of rotor main shaft 303 in Figure 13.As shown in figure 25, rotor main shaft 303 is hollow shaft, main shaft diameter
To oil-through hole is evenly distributed with, for constituting motor internal oil circulation.
Figure 26 a are the output end enlarged drawing of rotor main shaft 303 in Figure 25.As shown in Figure 26 a, rotor main shaft output end is by spending
Keyway 3031, consent 3032, groove 3033, radial direction oil-through hole 3034, hollow axis hole 3035 are constituted.Spline 3031 is used for motor
The spline connection of output shaft；Consent 3032 is used to prevent impurity from entering hollow shaft；Groove 3033 is used for installed thrust bearing 120；
Radial direction oil-through hole 3034 is used to constitute motor internal oil circulation；Hollow axis hole 3035 is motor internal oil circuit, for constituting electricity
Machine internal oil passages have circulated thermolysis.
Figure 26 b are the aft end enlarged drawing of rotor main shaft 303 in Figure 25.As illustrated in figure 26b, the aft end of rotor main shaft 303
By radial direction oil-through hole 3036, hollow axis hole 3037, encoder mounting hole 3038 and 3039.Radial direction oil-through hole 3036 is used to constitute electricity
Machine internal oil passages are circulated；Hollow axis hole 3037 is used to inject dynamo oil composition motor internal oil circulation；Encoder mounting hole
3038 and 3039 are used to install encoder.
Figure 26 c are the interlude enlarged drawing of rotor main shaft 303 in Figure 25.As shown in Figure 26 c, the interlude of rotor main shaft 303
Including radial direction oil-through hole 30310 and 30312, hollow axis hole 30311, internal oil circulation is provided commonly for so that rotor main shaft 303
Radiating.
Figure 27 is the Structure explosion diagram of rotor magnetic steel assembly 302 in Figure 13.As shown in figure 27, rotor magnetic steel assembly
302 by jump ring 3021, end copper ring 3022,3027,30211 and 30216, axial compression ring 3023 and 30215, single magnet steel group
3024 and 30214, radial compaction ring 3025 and 30213, single-unit magnet steel 3026, gasket seal 3028 and 30210, floating bearing
3029th, more piece magnet steel combination 30212, back-up ring 30217 are constituted.Wherein, jump ring 3021, end copper ring 3022 and 30216, axial direction
Hold-down ring 3023 and 30215 belongs to rotor tip component；Single magnet steel group 3024 and 30214, the and of radial compaction ring 3025
30213rd, single-unit magnet steel 3026 belongs to single magnetic steel component；End copper ring 3027 and 30211, gasket seal 3028 and 30210,
Floating bearing 3029 belongs to internode component.Jump ring 3021 is used for the axial float for preventing that rotor from assembling；End copper ring 3022,
3027th, 30211 and 30216 are used to fix magnet steel assembly 302 and Magnetic isolation；Axial compression ring 3023 and 30215 is used for axially
Clamp magnet steel assembly 302；Single magnet steel group 3024 and 30214 is used to constitute single-unit magnet steel, so as to further constitute more piece
Magnet steel is combined；Radial compaction ring 3025 is used to be fixed the two circumference magnet steel that are connected with 30213；Single-unit magnet steel 3026 is used for
Constitute the combination of more piece magnet steel；Gasket seal 3028 and 30210 is used to seal；Floating bearing 3029 is used to support each of rotor
Single-unit；Back-up ring 30217 is used to clamp whole rotor assembling.
On the mounting means of the rotor magnetic steel of the latent oil permagnetic synchronous motor of the present invention, on the circumference of single magnet steel group,
Two keyway magnet steel are devised, so as to prevent the play of magnet steel circumferentially；Set in the axial direction further through the two ends of each magnet steel
Counted between ledge structure, adjacent two single magnet steel group by install radial compaction ring magnet steel step into annular groove, from
And prevent magnet steel coming off diametrically；At the two ends per single magnet steel assembly, axial compression ring is provided with again, so as to prevent
The play of magnet steel in the axial direction；In addition, floating bearing is mounted between two adjacent single-unit magnet steels, so that overall turn
Sub- magnet steel has certain flexibility, prevents from being easily damaged because rigidity is too high.
Figure 28 is the structural representation of Figure 27 transfer substandard magnet steel.As shown in figure 28, rotor standard magnet steel 2000 is overall
It is in shoe shape in structure, material is permanent magnet.
Figure 29 is the end view drawing of Figure 27 transfer substandard magnet steel.As shown in figure 29, from end face, rotor standard magnet steel bag
Outer surface 2001, step surface 2002, inner surface 2003 is included to constitute, and it is all curved.Outer surface 2001 is used for and stator formation magnetic
Field air gap；Step surface 2002 is used to install the radial compaction ring 30215 for clamping magnet steel；Inner surface 2003 is used for and rotor main shaft
303 coordinate fixation.
Figure 30 is the A-A faces sectional view of Figure 28 transfer substandard magnet steel.As shown in figure 30, from axial section, including
The part 2003 that the part 2001,2002 and circular arc inner surface that step surface is formed are formed.
Figure 31 is the structural representation of rotor key groove magnet steel in Figure 27.As shown in figure 31, including rotor keyway magnet steel 3000
The axial direction of surface side is provided with elongated key grooves 3100, in each single magnet steel ring of composition rotor magnetic steel assembly 302
Two keyway magnet steel are designed with, so as to prevent the play of magnet steel circumferentially.
Figure 32 is the end view drawing of rotor key groove magnet steel in Figure 27.As shown in figure 32, from end face, rotor keyway magnet steel
3000 include outer surface 3001, step surface 3002, inner surface 3003 constitute, keyway 3004, actually rotor keyway magnet steel be
It is on the basis of rotor standard magnet steel to be provided with keyway more.The surface 3001 of rotor keyway magnet steel, step surface 3002, inner surface 3003
Effect it is with rotor standard magnet steel identical, and keyway 3004 is used for the positioning of magnet steel circumferentially, prevents magnet steel circumferentially
Play.
Figure 33 is the layout viewing of the single magnet steel group of rotor in Figure 27.Figure 34 is main shaft, stator and the signal of rotor assembly relation
Figure.As shown in figs. 33 and 34, single magnet steel group 3024 is uniformly arranged by 8 standard magnet steel 2000 and 2 keyway magnet steel 3000
On the outer surface circumference of magnet steel support member 4000.2 keyway magnet steel are with keyway arranged relative, with magnet steel support member 4000
Groove collectively forms keyway, is positioned by the connection of key 5000 and prevents the play of magnet steel circumferentially.Magnet steel support member 4000
It is connected further through keyway 5000 with rotor main shaft 303, so as to constitute, the rotor with magnet steel group is overall, and its outer cover sets subgroup
Single-unit iron core 203 in zoarium 200.
As shown in the above, the present invention uses housing for integral type, and stator, rotor are multi-section type, and rotor main shaft is sky
Heart axle, the mode of oiling into motor internal nacelle, overcomes defect of the prior art so that latent oil permagnetic synchronous motor is excellent
Electromagnetic scheme is changed, so as to improve motor performance；Process program is improved, so as to improve reliability；Fluid is devised to follow
Ring structure, so as to solve heat dissipation problem.The latent oil permagnetic synchronous motor is designed using assembly module, improves packaging technology
Property, it is simple in construction and can flexible design as needed.In addition, the latent oil permagnetic synchronous motor of the present invention can realize the big torsion of low speed
Square, therefore underground drives the effect of pump reliable and stable, it is adaptable to all scopes pumped in underground by electric pump, it is particularly suitable
In screw pump oil pumping occasion.
Claims (7)
1. stator and rotor are correspondingly arranged in a kind of latent oil permagnetic synchronous motor, including electric machine casing, electric machine casing, its feature
It is, the two ends of the electric machine casing seal and are connected by coupling arrangement with other external device (ED)s respectively, are integrally formed formula
The housing unit of structure；The stator and rotor are respectively the stator assembly and rotor assembly of multi-section type structure, described fixed
Subgroup zoarium is fixed on housing unit, and the rotor assembly is located in inside stator assembly, the stator assembly and
Positioning is compressed between rotor assembly；Injection fluid in housing unit；
Wherein, the housing unit includes housing and the output end coupling head for being separately positioned on housing two ends and aft end connection
Head, is connected between the output connecting head and housing by thrust bearing；Described output end coupling head is used for the latent oil forever
The protector of magnetic-synchro outside motor, pump connection, access oil-submersible cable, and to enclosure interior oiling；Described aft end connection
Head is used to install encoder, and is connected with outside sealing device and controller；
The output end coupling head includes body, and one end of the body is provided with pipe screw thread, for being connected with the housing, body
Middle part be provided with oil filler point, the other end of body is provided with the screwed hole combination for connecting；
The inside of the body is oblique provided with connection screwed hole, delivery outlet, bearing mounting hole, pin connection holes, axially extending bore, arc
Face, cable interface, groove, pipe screw thread, axial oil-through hole and radial direction oil filler point；The connection screwed hole is evenly distributed on output end
Circumference of flange；Output motor main shaft output end is provided with the delivery outlet；Thrust bearing is installed fixed in the bearing mounting hole
Position；The thrust disc of the thrust bearing is fixed in the pin connection holes；Motor output shaft is located in the axially extending bore；It is defeated
Enter cable and housing is entered through curve slope by the cable interface；O-ring seal is provided with groove；The housing passes through pipe spiral shell
Line is tightly connected with output end coupling head；Fluid is transported to motor internal by radial direction oil filler point and enters axial oil-through hole.
2. latent oil permagnetic synchronous motor as claimed in claim 1, it is characterised in that the stator assembly includes multiple single-units
Press-fit the composition multi-section type stator core that is connected with each other between iron core, two adjacent single-unit iron cores by internode, in the more piece
The two ends of formula stator core set gradually hold-down ring and jump ring respectively from center to both sides, and it is fixed that multi-section type stator core is compressed
Position.
3. latent oil permagnetic synchronous motor as claimed in claim 1, it is characterised in that the rotor assembly, which includes being set in, to be turned
Magnet steel assembly on sub- main shaft, the two ends of rotor main shaft are respectively equipped with rotor output axle sleeve and rotor aft end axle sleeve；
Described magnet steel assembly is multi-section type structure, is connected to each other and formed by floating bearing by multiple single magnet steel groups, often
One single magnet steel group is circumferentially constituted by 10 magnet steel are evenly distributed.
4. latent oil permagnetic synchronous motor as claimed in claim 3, it is characterised in that 10 magnet steel of the single magnet steel group
In, including 8 standard magnet steel and 2 keyway magnet steel；
The two ends of the standard magnet steel and keyway magnet steel are provided with step, multiple standard magnet steel and keyway magnet steel in the axial direction respectively
Step be combined on the annular groove between annular groove, two neighboring single magnet steel group setting radial compaction ring；
The two ends of the single magnet steel group, are additionally provided with axial compression ring.
5. latent oil permagnetic synchronous motor as claimed in claim 2, it is characterised in that described single-unit iron core includes silicon steel sheet,
The silicon steel sheet is provided with stator slot, arc groove, coiling fluting and housing connection slot, forms the open flume type stator core of 12 grooves
Structure；Winding coil is arranged on stator slot, and cable passes through arc groove, silicon steel sheet by housing connection slot and stator core and
Housing is connected.
6. latent oil permagnetic synchronous motor as claimed in claim 3, it is characterised in that the rotor main shaft is slim-lined construction, bag
Include output end, interlude and aft end；Described output end is splined shaft；Described interlude is hollow shaft, radially uniform point
Multiple oil-through holes are furnished with, the elongated key grooves for assemble rotor assembly are additionally provided with；Described aft end is hollow shaft；
Described output end is provided with spline, consent, groove, radial direction oil-through hole and hollow axis hole, the spline and motor
The spline connection of output shaft；Installed thrust bearing in groove；
Described interlude is provided with radial direction oil-through hole and hollow axis hole；
Described aft end is provided with radial direction oil-through hole, hollow axis hole and encoder mounting hole.
7. latent oil permagnetic synchronous motor as claimed in claim 4, it is characterised in that described keyway magnet steel is circular arc sheet knot
Structure, includes outer surface and the inner surface of arc, and the both sides of the edge in outer surface prolong its axial direction and are respectively equipped with step surface,
One lateral edges of inner surface, prolong its radial direction and are provided with the keyway for being used for making magnet steel circumferentially position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739094.XA CN104753284B (en) | 2013-12-27 | 2013-12-27 | Latent oil permagnetic synchronous motor |
| PCT/CN2014/089544 WO2015096547A1 (en) | 2013-12-27 | 2014-10-27 | Submersible permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739094.XA CN104753284B (en) | 2013-12-27 | 2013-12-27 | Latent oil permagnetic synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753284A CN104753284A (en) | 2015-07-01 |
| CN104753284B true CN104753284B (en) | 2017-08-08 |
Family
ID=53477497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310739094.XA Expired - Fee Related CN104753284B (en) | 2013-12-27 | 2013-12-27 | Latent oil permagnetic synchronous motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104753284B (en) |
| WO (1) | WO2015096547A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134867B (en) * | 2016-02-29 | 2024-06-14 | 中石化石油工程技术服务有限公司 | Ultra-long iron core and few coil permanent magnet synchronous motor for driving underground electric drilling tool |
| CN107064562B (en) * | 2017-04-20 | 2023-03-24 | 吉林宇恒光电仪器有限责任公司 | Calibration device for output rotating speed error of photoelectric encoder |
| CN109921563A (en) * | 2019-04-22 | 2019-06-21 | 弘允新能源（上海）有限公司 | A kind of flywheel close coupled type generator |
| CA3152155A1 (en) | 2019-09-23 | 2021-04-08 | Mitchell Lee CRANE | Systems and process for aligning permanent magnet motors in an electrical submersible pump |
| US11128278B2 (en) | 2019-11-13 | 2021-09-21 | Extract Management Co., LLC | Systems and methods for balancing unbalanced power cables |
| CN111769661A (en) * | 2020-07-08 | 2020-10-13 | 浙江都美电气技术股份有限公司 | Submersible permanent magnet synchronous motor |
| CN113517767B (en) * | 2021-04-21 | 2024-01-26 | 沈阳工业大学 | Slender small-diameter low-speed high-torque submersible permanent magnet motor |
| CN113364235B (en) * | 2021-05-28 | 2023-02-14 | 山东威马泵业股份有限公司 | Coil inserting process method for stator of submersible motor |
| CN116545138B (en) * | 2023-06-27 | 2023-10-24 | 无锡恒信北石科技有限公司 | Stator structure and welding process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877521A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Multi-section servo submersible motor |
| CN102223032A (en) * | 2011-06-27 | 2011-10-19 | 沈阳工业大学 | Ultra-long structure motor composed of unit combined permanent magnet synchronous motors |
| CN203289295U (en) * | 2013-05-31 | 2013-11-13 | 中国石油大学(华东) | Low-speed large-torque submersible permanent-magnetic synchronous motor |
| CN203660845U (en) * | 2013-12-27 | 2014-06-18 | 浙江中科德润科技有限公司 | Submersible permanent magnet synchronous motor |
-
2013
- 2013-12-27 CN CN201310739094.XA patent/CN104753284B/en not_active Expired - Fee Related
-
2014
- 2014-10-27 WO PCT/CN2014/089544 patent/WO2015096547A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877521A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Multi-section servo submersible motor |
| CN102223032A (en) * | 2011-06-27 | 2011-10-19 | 沈阳工业大学 | Ultra-long structure motor composed of unit combined permanent magnet synchronous motors |
| CN203289295U (en) * | 2013-05-31 | 2013-11-13 | 中国石油大学(华东) | Low-speed large-torque submersible permanent-magnetic synchronous motor |
| CN203660845U (en) * | 2013-12-27 | 2014-06-18 | 浙江中科德润科技有限公司 | Submersible permanent magnet synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104753284A (en) | 2015-07-01 |
| WO2015096547A1 (en) | 2015-07-02 |
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Effective date of registration: 20170825 Address after: Hangzhou City, Zhejiang province Tonglu County Tonglu 311500 Beach Road Economic Development Zone No. 77 Patentee after: Hangzhou Corecess energy-saving equipment Limited by Share Ltd Address before: 5, 310052 floor, Green fair, -B, 1805 east stream Road, Hangzhou, Zhejiang, Binjiang District Patentee before: Zhejiang Zhongke Derun Technology Co.,Ltd. |
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