CN202142969U - Low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor - Google Patents
Low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor Download PDFInfo
- Publication number
- CN202142969U CN202142969U CN201120296990U CN201120296990U CN202142969U CN 202142969 U CN202142969 U CN 202142969U CN 201120296990 U CN201120296990 U CN 201120296990U CN 201120296990 U CN201120296990 U CN 201120296990U CN 202142969 U CN202142969 U CN 202142969U
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- Prior art keywords
- stator
- permanent magnet
- rotor
- rotating shaft
- servo control
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- Expired - Fee Related
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor, which comprises a motor shell, a stator and a rotor; the stator is pressed on the inner wall of the motor shell, the rotor comprises a rotating shaft and a permanent magnet attached to the rotating shaft, and a magnetic steel ring is arranged at the tail of the rotating shaft; the stator and the rotor are arranged in a segmented mode, a centering bearing is arranged between every two segments, the submersible motor further comprises a high-voltage threading sealing assembly and a controller, a wiring groove is formed in the outer wall of the stator, and P, N wires and communication wires penetrating through the controller are arranged in the wiring groove. The problem that the existing submersible motor needs to be provided with a speed reducer is solved, the motor efficiency is improved, the soft start is realized, the investment is saved, and the reliability of the system is improved.
Description
Technical field
The utility model is applied to the mechanical oil recovery technical field, is specifically related to the SERVO CONTROL submersible electric machine with oil that latent oily servomotor directly-driven screw pump oil extraction system is used.
Background technology
What submersible screw pump adopted at present is 2 utmost points or 4 pole three phase asynchronous submersible electric machine with oils; Though phase asynchronous submersible electric machine with oil technology is very ripe, motor speed is high, and staring torque is little; Need to use decelerator to connect motor and screw pump; To reduce rotating speed, increase moment of torsion, could satisfy the condition of work of screw pump.Because the size of decelerator receives the restriction of oil well casing size, it is big to manufacture and design difficulty, especially for 5
1/ 2 〃 cased wells, the decelerator failure rate is high, and also inconvenience maintenance after breaking down.Limited the sizable application of submersible screw pump.
Summary of the invention
The purpose of the utility model provides the multistage multi-section servo of a kind of low rotation speed large torque permanent-magnet synchronous control submersible electric machine with oil, is used for the direct drive screw pump work in the down-hole, and the cancellation decelerator improves system effectiveness and reliability.
The technical scheme of the utility model is: low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil comprises motor housing, stator and rotor; Said motor housing inwall press-fits stator, and said rotor comprises rotating shaft and the permanent magnet that in rotating shaft, posts, and the rotating shaft afterbody is equipped with magnetic steel ring; The stator and rotor merogenesis is provided with, and between per two joints alignment bearing is housed, and alignment bearing is a sliding bearing, and this sliding bearing comprises sliding bearing inner ring and sliding bearing outer ring; The N utmost point, the S utmost point of two adjacent economize on electricity machine rotors are distinguished correspondence point-blank, and the U of motor stator, V, W three phase windings difference correspondence are point-blank; This submersible electric machine with oil also comprises high pressure thread threading sealing assembly and controller, and the stator outer wall is provided with trough, passes P, N line and the connection of controller in the trough.
This low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil, the preferred rotor number of poles is 6 utmost points or 8 utmost points.
The utlity model has following beneficial effect: the application's low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil; The high-precision servo control that the controller of selecting for use can be realized motor has realized soft start, has cancelled decelerator; Improve electric efficiency, saved investment; The black box of selecting for use has guaranteed the sealing of control cabinet, the sealing effectiveness reliable and stable.
Description of drawings
Fig. 1 is the structural representation of the utility model submersible electric machine with oil.
Among the figure: 1. rotor, 2. permanent magnet, 3. stator, 4. sliding bearing inner ring, 5. sliding bearing outer ring, 6. motor housing, 7. trough, 8. high pressure thread threading sealing assembly, 9. magnetic steel ring, 10. controller.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
By shown in Figure 1: low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil comprises motor housing 6, stator 3 and rotor; Said motor housing 6 inwalls press-fit stator 3, and said rotor comprises rotating shaft 1 and the permanent magnet 2 that in rotating shaft 1, posts, and rotating shaft 1 afterbody is equipped with magnetic steel ring 9; Stator and rotor are merogenesis, confirm joint number according to the design power needs.Between per two joints alignment bearing is housed all, alignment bearing is a sliding bearing, and this sliding bearing comprises sliding bearing inner ring 4 and sliding bearing outer ring 5.The rotor number of poles can be selected 6 utmost points, 8 utmost points or more multipole according to the rotating speed needs.The N utmost point, the S utmost point of two adjacent economize on electricity machine rotors are distinguished correspondence point-blank, and the U of motor stator, V, W three phase windings difference correspondence are point-blank.This submersible electric machine with oil also comprises high pressure thread threading sealing assembly 8; The structure of this high pressure thread threading sealing assembly 8 is submitted utility application to State Intellectual Property Office by the applicant separately; The patent name of specifically declaring is " the oily servomotor high pressure thread threading sealing assembly of diving "; The stainless steel cage of black box 8 is used to install the magnetism encoder of submersible electric machine with oil, and the magnetic steel ring 9 that rotating shaft 1 afterbody is installed is with the rotating part of motor shaft in the magnetism encoder.This submersible electric machine with oil also comprises controller 10 in addition; The structure of this controller 10 is submitted utility application to State Intellectual Property Office by the applicant separately; The patent name of specifically declaring is " a submersible electric machine with oil servo controller "; On stator 3 outer walls trough 7 is arranged, be used to pass P, N line and four connections to controller 10.
Claims (2)
1. low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil comprises motor housing, stator and rotor; Said motor housing inwall press-fits stator, and said rotor comprises rotating shaft and the permanent magnet that in rotating shaft, posts, and the rotating shaft afterbody is equipped with magnetic steel ring; It is characterized in that: the stator and rotor merogenesis is provided with, and between per two joints alignment bearing is housed, and alignment bearing is a sliding bearing, and this sliding bearing comprises sliding bearing inner ring and sliding bearing outer ring; The N utmost point, the S utmost point of two adjacent economize on electricity machine rotors are distinguished correspondence point-blank, and the U of motor stator, V, W three phase windings difference correspondence are point-blank; This submersible electric machine with oil also comprises high pressure thread threading sealing assembly and controller, and the stator outer wall is provided with trough, passes P, N line and the connection of controller in the trough.
2. low rotation speed large torque permanent magnet synchronous servo control submersible electric machine with oil according to claim 1, it is characterized in that: said rotor number of poles is 6 utmost points or 8 utmost points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120296990U CN202142969U (en) | 2011-08-16 | 2011-08-16 | Low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120296990U CN202142969U (en) | 2011-08-16 | 2011-08-16 | Low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142969U true CN202142969U (en) | 2012-02-08 |
Family
ID=45554007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120296990U Expired - Fee Related CN202142969U (en) | 2011-08-16 | 2011-08-16 | Low-rotation-speed large-torque permanent magnet synchronous servo control submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293816A (en) * | 2020-04-07 | 2020-06-16 | 东方电气集团东方电机有限公司 | Centering bearing for motor of downhole drilling tool |
| CN112615503A (en) * | 2020-12-22 | 2021-04-06 | 武汉市恒信泰采油设备制造有限公司 | Permanent magnet synchronous submersible motor automatic installation and test production line |
-
2011
- 2011-08-16 CN CN201120296990U patent/CN202142969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293816A (en) * | 2020-04-07 | 2020-06-16 | 东方电气集团东方电机有限公司 | Centering bearing for motor of downhole drilling tool |
| CN112615503A (en) * | 2020-12-22 | 2021-04-06 | 武汉市恒信泰采油设备制造有限公司 | Permanent magnet synchronous submersible motor automatic installation and test production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170816 |