CN209469417U - A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives - Google Patents
A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives Download PDFInfo
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- CN209469417U CN209469417U CN201821770049.5U CN201821770049U CN209469417U CN 209469417 U CN209469417 U CN 209469417U CN 201821770049 U CN201821770049 U CN 201821770049U CN 209469417 U CN209469417 U CN 209469417U
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- synchronous motor
- magnet synchronous
- combination type
- main shaft
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Abstract
The utility model discloses a kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives, including bracket and pedestal on the ground is arranged, the top of the bracket is equipped with the polished rod eye being sequentially connected, wirerope, horse head, walking beam, connecting rod and drives arm, it is hinged in the middle part of the top of the bracket and walking beam, the drive arm is directly driven by the rimless combination type permanent-magnet synchronous motor in the pedestal, and the drive arm is equipped with clump weight；The permanent magnet synchronous motor includes main shaft, is fixed on the main shaft and have the rotor assembly of permanent magnetism, is mounted in pedestal and provides the stator module of rotating excitation field for the rotor assembly, the both ends driven arm and be fixedly mounted on the main shaft, the stator module is composed of the stator unit of at least two fan-shaped block structures, and the stator unit includes stator core and the stator winding that is wrapped on the stator core.Pumping unit described in the utility model, structure is simple, small in size, transmission efficiency is high, low energy consumption.
Description
Technical field
The utility model belongs to oil field development technical field, and in particular to a kind of rimless combination type permanent-magnet synchronous motor directly drives
Pumping unit of well.
Background technique
Beam pumping unit has used since birth after a century, be the pumping unit type that is currently mainly used of oil field it
One, still at home and abroad oil field generally uses at present.Conventional beam pumping unit typically uses motor to be driven, including
Bracket, walking beam, horse head, polished rod eye and counterweight are hingedly mounted on bracket in the middle part of walking beam, and the front end of walking beam is fixed with donkey
Head, horse head are connect by wirerope with polished rod eye, and downhole oil extraction device is equipped with below polished rod eye, and the rear end of walking beam is equipped with counterweight,
It is flexibly connected in the walking beam between bracket and counterweight with motor driver, on the horse head by motor driven walking beam front end
Lower movement, to achieve the purpose that oil recovery, structure is simple, manufacture is easy, high reliablity, durability are good, easy to maintenance, Ke Yi
The round-the-clock operating in oil field, occupies very important status in oil recovery machiner.The deficiency of this conventional beam pumping unit
Be in: counterbalance effect is poor, and loading rate is low, and working efficiency is low, and energy consumption is high, in cost for oil production, the pumping unit electricity charge account for 30% a left side
The right side, year power consumption account for the 20~30% of oil field total power consumption；Meanwhile the dynamic loading in operational process is larger, especially load and
It is larger to tube rod system shock during off-load, easily cause danger；In applying at the scene, conventional beam pumping unit is all adopted
With independent control operational mode, in this way, cost input early period in an oil recovery region is larger, system integrally consumes energy higher.
Summary of the invention
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of rimless combination type permanent-magnet and synchronize electricity
The pumping unit of well that machine directly drives, structure is simple, small in size, driving torque is big, transmission efficiency is high, low energy consumption.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives, including bracket and base on the ground is arranged
Seat, the top of the bracket and walking beam middle part are hinged, and the front end of the walking beam is fixed with horse head, and the horse head passes through wirerope
It is connected with polished rod eye, the rear end of the walking beam and the upper end of connecting rod are hinged, and the lower end of the connecting rod and drive arm are hinged, institute
It states drive arm to be directly driven by the rimless combination type permanent-magnet synchronous motor being arranged in the pedestal, the drive arm is equipped with counterweight
Block；The permanent magnet synchronous motor includes main shaft, stator module and rotor assembly, and the drive arm is fixedly mounted on the two of the main shaft
End, the stator module are fixedly installed in the pedestal and provide rotating excitation field, the stator module for the rotor assembly
It is composed of the stator unit of at least two fan-shaped block structures, the stator unit includes stator core and is wrapped in described
Stator winding on stator core；The rotor assembly with magnetic property is fixedly installed on the main shaft.
The drive arm is directly driven by the rimless combination type permanent-magnet synchronous motor being arranged in the pedestal, and the permanent magnetism is same
Rotating excitation field can be provided in the axially and/or radially upper of the main shaft by walking motor, and driving torque is big, so that pumping unit is worked
Transmission efficiency in journey is high, low energy consumption.The stator module can be combined by the stator unit of two fan-shaped block structures and
At the relatively described main-shaft axis of the stator unit of the sectorial block is symmetrical arranged.The stator module is also possible to by head and the tail phase
The ring structure that n (n > 2) a sectorial block stator unit of splicing surrounds, can also be by not connecting from beginning to end around the spindle shaft
The stator unit of a fan-shaped block structure of line n evenly distributed in the circumferential direction (n > 2) is composed.When wherein some stator
Unit damage, then be individually replaced one of stator unit, thus the maintenance and nursing of equipment of being more convenient for.
Preferably, the stator module further includes stator base, and the stator base is fixedly mounted on the base, institute
Stator core is stated to be fixedly installed in the stator base.The stator base provides an installation mould for the stator core
Plate, in assembling, the stator base and stator core can assemble completion in advance, enter the peace of next step as a whole
Process is filled, it is easy for installation, installation effectiveness is improved, is omitted prevented also from scattered component, the various bad management of components is solved
Problem.The stator base, which can be, is integrally machined molding, can also use combined form.
It is highly preferred that the both ends of the stator base are removably connected with bearing block, the main shaft is fixed on by bearing
On the bearing block, the bearing block is equipped with the end cap for fixing the bearing.The bearing block is described fixed for limiting
The position of sub-base.
It is highly preferred that the bearing block is equipped with the seam allowance for fixing the end cap, the end cap is equipped with for fixed
The apical ring of the position bearing.The design of the seam allowance is fixed convenient for the end cap, and the apical ring on the end cap defines institute
The position of bearing side is stated, the other side of the bearing limits its position by the second apical ring that the rotor assembly both ends are arranged
It sets.The positioning of the main shaft, rotor assembly and stator module so can be realized, install more accurate reliable；Connected using bearing
The mode connect is easy to disassemble, is conducive to repair.
It is highly preferred that the rotor assembly includes rotor pedestal and is evenly arranged in the rotor pedestal around the main shaft
On permanent magnet, the permanent magnet is evenly arranged in lateral wall and/or the end face of the rotor pedestal；The stator base is arranged
Outside the rotor assembly, the stator core is placed in inner sidewall and/or the end face of the stator base, with the permanent magnet phase
It is correspondingly arranged.By the cooperation of the permanent magnet and shown stator core, in the main shaft radially and/or axially to the rotor
Component provides turning moment, drives the main shaft to rotate, to drive the drive arm to move in a circle, to control pumping unit work
Make.
Preferably, the stator base is equipped with cooling unit.The stator module is the magnetic for needing electric power to generate rotation
, the rotation of the main shaft is driven while testing rotating excitation field, can supervene a large amount of heat, influences the normal of equipment
Operation, the cooling unit can quickly take away heat, guarantee the stable of equipment.
It is highly preferred that the cooling unit is cooling water pipe of the spiral surrounding in the stator base.Using described cold
But the recirculated water to trickle in water pipe carries out the cooling down of equipment, safety and environmental protection, good cooling results.
Compared with prior art, the utility model has the beneficial effects that
1, using rimless combination type permanent-magnet synchronous motor as driving motor, motor stator component is looped around around main shaft simultaneously
It fixes on the base, reduces the driving intermediate link such as gear, reduction gearbox, simplify the driving method of equipment and the structure of equipment
Form improves drive efficiency, reduces the loss of the energy；In addition, permanent magnet synchronous motor provides the rotating excitation field on axially and radially,
Driving torque is big, and transmission efficiency is high, and energy loss is small；
2, the mode directly driven substantially reduces the volume of equipment, alleviates weight of equipment；
3, the drive form that permanent magnet synchronous motor directly drives has fast response time, controls advantage with high accuracy.
Detailed description of the invention
Fig. 1 is a kind of structure for the pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives described in the utility model
Schematic diagram；
Fig. 2 is the structural schematic diagram of rimless combination type permanent-magnet synchronous motor described in the utility model embodiment 1；
Fig. 3 is the structural schematic diagram of the utility model permanent magnet one
Fig. 4 is the structural schematic diagram of the utility model stator core one；
Fig. 5 is the structural schematic diagram of rimless combination type permanent-magnet synchronous motor described in the utility model embodiment 2；
Fig. 6 is the structural schematic diagram of the utility model permanent magnet two
Fig. 7 is the structural schematic diagram of the utility model stator core two；
Fig. 8 is the structural schematic diagram of rimless combination type permanent-magnet synchronous motor described in the utility model embodiment 3；
In figure: 1, bracket；2, pedestal；3, walking beam；4, horse head；5, permanent magnet synchronous motor；51, main shaft；6, rotor assembly；
61, rotor pedestal；62, permanent magnet one；63, permanent magnet two；7, stator module；71, stator core one；72, stator core two；
73, stator base；8, wirerope；9, polished rod eye；10, connecting rod；11, arm is driven；13, bearing block；14, bearing；15, end cap；16,
Nut；17, clump weight；18, seam allowance；19, apical ring；20, cooling water pipe.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, the technical solution of the utility model is clearly and completely retouched
It states, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this
Embodiment in utility model, those of ordinary skill in the art under the conditions of not making creative work it is obtained it is all its
Its embodiment, fall within the protection scope of the utility model.
Embodiment 1
A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives described in the present embodiment, in conjunction with FIG. 1 to FIG. 4
It is illustrated, including bracket 1 and pedestal 2 on the ground is arranged, the top and 3 middle part of walking beam of bracket 1 are hinged, before walking beam 3
End is fixed with horse head 4, and horse head 4 is connected with polished rod eye 9, the lower end surface of the rear end of walking beam 3 and connecting rod 10 by wirerope 8
Upper end it is hinged, it is same by the rimless combination type permanent-magnet being arranged in pedestal 2 to drive arm 11 for the lower end of connecting rod 10 and to drive arm 11 hinged
Step motor 5 directly drives, and drives arm 11 and is equipped with clump weight 17；Rimless combination type permanent-magnet synchronous motor 5 includes main shaft 51, stator pack
Part 7 and rotor assembly 6, drive the both ends that arm 11 is fixedly mounted on main shaft 51 by nut 16, and stator module 7 is fixedly installed in pedestal
Rotating excitation field is provided in 2 and for rotor assembly 6；Stator module 7 is composed of the stator unit of 6 fan-shaped block structures, institute
The stator winding that stator unit includes stator core 1 and is wrapped on stator core 1 is stated, stator core 1 is in one
The circular cylindrical structure of machine-shaping；Rotor assembly 6 with magnetic property is fixedly installed on main shaft 51.
Stator module 7 further includes stator base 73, and stator base 73 is fixedly installed on pedestal 2, and stator core 1 is solid
Dingan County is loaded in stator base 73；The both ends of stator base 73 are removably connected with bearing block 13, and main shaft 51 is solid by bearing 14
It is scheduled on bearing block 13, bearing block 13 is equipped with the end cap 15 for fixing bearing 14；Bearing block 13, which is equipped with, is used for fixing end
The seam allowance 18 of lid 15, end cap 15 are equipped with the apical ring 19 for positioning bearing 14.Stator base 73 is equipped with cooling unit, described
Cooling unit is cooling water pipe 20 of the spiral surrounding in stator base 73.
Rotor assembly 6 includes rotor pedestal 61 and the permanent magnet one being evenly arranged on rotor pedestal 61 around main shaft 51
62, permanent magnet 1 is evenly arranged in the lateral wall of rotor pedestal 61；Stator base 73 is set in outside rotor assembly 6, stator iron
Core 1 is placed in the inner sidewall of stator base 73, setting corresponding with permanent magnet 1.
When energization, stator core 1 is that permanent magnet 1 provides the magnetic field radially rotated, promotes stator module 7
The torque around the rotation of 51 axial line of main shaft is provided for rotor assembly 6, and main shaft 51 is driven to rotate, is done to directly drive and drive arm 11
Circular motion and the work for driving pumping unit.
Embodiment 2
A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives and embodiment 1 described in the present embodiment are basic
Identical, difference will be illustrated in conjunction with Fig. 5~Fig. 7, and rimless combination type permanent-magnet synchronous motor 5 includes main shaft 51, stator pack
Part 7 and rotor assembly 6, drive the both ends that arm 11 is fixedly mounted on main shaft 51 by nut 16, and stator module 7 is fixedly installed in pedestal
Rotating excitation field is provided in 2 and for rotor assembly 6；Stator module 7 is composed of the stator unit of 6 fan-shaped block structures, institute
The stator winding that stator unit includes stator core 2 72 and is wrapped on stator core 2 72 is stated, stator core 2 72 is in one
The circular column dish structure of machine-shaping；Rotor assembly 6 with magnetic property is fixedly installed on main shaft 51.
Rotor assembly 6 includes rotor pedestal 61 and the permanent magnet two being evenly arranged on rotor pedestal 61 around main shaft 51
63, permanent magnet 2 63 is evenly arranged in the end face of rotor pedestal 61；Stator base 73 is set in outside rotor assembly 6, stator core
2 72 are placed in the end face of stator base 73, setting corresponding with permanent magnet 2 63.
When energization, stator core 2 72 is that permanent magnet 2 63 provides the magnetic field rotated in an axial direction, promotes stator module 7
The torque around the rotation of 51 axial line of main shaft is provided for rotor assembly 6, and main shaft 51 is driven to rotate, is done to directly drive and drive arm 11
Circular motion and the work for driving pumping unit.
Embodiment 3
A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives and embodiment 1 described in the present embodiment are basic
Identical, difference will be illustrated in conjunction with Fig. 8, rimless combination type permanent-magnet synchronous motor 5 include main shaft 51, stator module 7 and
Rotor assembly 6 drives arm 11 by nut 16 and is fixedly mounted on the both ends of main shaft 51, stator module 7 be fixedly installed in pedestal 2 and
Rotating excitation field is provided for rotor assembly 6；Stator module 7 is composed of the stator unit of at least two fan-shaped block structures, institute
Stator unit is stated to include stator core 1, stator core 2 72 and be wrapped in stator core 1, on stator core 2 72
Stator winding, stator core 1 are in be integrally machined molding circular cylindrical structure；Stator core 1 is in be integrally machined molding
Circular cylindrical structure, stator core 2 72 is in being integrally machined molding ring discoid structure；Rotor set with magnetic property
Part 6 is fixedly installed on main shaft 51.
Rotor assembly 6 includes rotor pedestal 61 and the permanent magnet one being evenly arranged on rotor pedestal 61 around main shaft 51
62, permanent magnet 2 63, permanent magnet 1 is evenly arranged in the lateral wall of rotor pedestal 61, permanent magnet 2 63 is evenly arranged in rotor
The end face of pedestal 61；Stator base 73 is set in outside rotor assembly 6, and stator core 1 is placed in the inner sidewall of stator base 73,
Setting corresponding with permanent magnet 1；Stator core 2 72 is placed in the end face of stator base 73, corresponding with permanent magnet 2 63 to set
It sets.
When energization, stator core 1 is that permanent magnet 1 provides the magnetic field radially rotated, stator core 2 72
The magnetic field rotated in an axial direction is provided for permanent magnet 2 63, promoting stator module 7 jointly is that rotor assembly 6 is provided around main shaft 51
The torque of axial line rotation, and main shaft 51 is driven to rotate, it moves in a circle to directly drive and drive arm 11 and drives pumping unit
Work.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives, including bracket and base on the ground is arranged
Seat, the top of the bracket and walking beam middle part are hinged, and the front end of the walking beam is fixed with horse head, and the horse head passes through wirerope
Be connected with polished rod eye, which is characterized in that the rear end of the walking beam and the upper end of connecting rod are hinged, the lower end of the connecting rod with
Drive arm is hinged, and the drive arm is directly driven by the rimless combination type permanent-magnet synchronous motor being arranged in the pedestal, the drive arm
It is equipped with clump weight；The permanent magnet synchronous motor includes main shaft, stator module and rotor assembly, and the drive arm is fixedly mounted on institute
The both ends of main shaft are stated, the stator module is fixedly installed in the pedestal and provides rotating excitation field for the rotor assembly, institute
Stator module is stated to be composed of the stator unit of at least two fan-shaped block structures, the stator unit include stator core and
The stator winding being wrapped on the stator core；The rotor assembly with magnetic property is fixedly installed in the main shaft
On.
2. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 1 directly drives, feature exist
In the stator module further includes stator base, and the stator base is fixedly mounted on the base, and the stator core is solid
Dingan County is loaded in the stator base.
3. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 2 directly drives, feature exist
In the both ends of the stator base are removably connected with bearing block, and the main shaft is fixed on the bearing block by bearing, institute
Bearing block is stated equipped with the end cap for fixing the bearing.
4. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 3 directly drives, feature exist
In the bearing block is equipped with the seam allowance for fixing the end cap, and the end cap is equipped with the top for positioning the bearing
Ring.
5. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 2 directly drives, feature exist
In the rotor assembly includes rotor pedestal and is evenly arranged in the permanent magnet on the rotor pedestal, institute around the main shaft
State lateral wall and/or end face that permanent magnet is evenly arranged in the rotor pedestal；The stator base is set in the rotor set
Outside part, the stator core is placed in inner sidewall and/or the end face of the stator base, setting corresponding with the permanent magnet.
6. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 2 directly drives, feature exist
In the stator base is equipped with cooling unit.
7. the pumping unit of well that a kind of rimless combination type permanent-magnet synchronous motor according to claim 6 directly drives, feature exist
In the cooling unit is cooling water pipe of the spiral surrounding in the stator base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770049.5U CN209469417U (en) | 2018-10-30 | 2018-10-30 | A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770049.5U CN209469417U (en) | 2018-10-30 | 2018-10-30 | A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469417U true CN209469417U (en) | 2019-10-08 |
Family
ID=68086528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821770049.5U Active CN209469417U (en) | 2018-10-30 | 2018-10-30 | A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403925A (en) * | 2018-10-30 | 2019-03-01 | 湖北环电磁装备工程技术有限公司 | A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives |
-
2018
- 2018-10-30 CN CN201821770049.5U patent/CN209469417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403925A (en) * | 2018-10-30 | 2019-03-01 | 湖北环电磁装备工程技术有限公司 | A kind of pumping unit of well that rimless combination type permanent-magnet synchronous motor directly drives |
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