CN202026262U - Magnetic-force flexible automatic control device for oil pumping unit - Google Patents
Magnetic-force flexible automatic control device for oil pumping unit Download PDFInfo
- Publication number
- CN202026262U CN202026262U CN2011201518471U CN201120151847U CN202026262U CN 202026262 U CN202026262 U CN 202026262U CN 2011201518471 U CN2011201518471 U CN 2011201518471U CN 201120151847 U CN201120151847 U CN 201120151847U CN 202026262 U CN202026262 U CN 202026262U
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- automatic control
- rotor
- flexible automatic
- magnetic
- control device
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Abstract
The utility model discloses a magnetic-force flexible automatic control device for an oil pumping unit in order to mainly solve the problem of high fault rate in the prior art because a frequency converter is used for controlling the oil pumping unit. The magnetic-force flexible automatic control device for the oil pumping unit is characterized by further comprising a motor shaft connecting flange plate, a U-shaped sealing protective cover, an outer rotor, an inner rotor, an annular sealing base and a load connecting shaft, wherein the outer rotor and the inner rotor are both made of neodymium-iron-boron permanent-magnet materials and have opposite magnetic polarities; the left end of the sealing protective cover is fixedly connected with the motor shaft connecting flange plate, and the right end of the sealing protective cover is connected with the sealing base through a bolt to form a working cavity; and the outer rotor is fixed inside the working cavity, the inner rotor is connected onto a load connecting shaft and then is located in the working cavity after passing through an annular hole in the center of the sealing base, and a gap is formed between the outer rotor and the inner rotor along the axial direction of the rotors. The magnetic-force flexible automatic control device disclosed by the utility model has the characteristics of stability in operation, long service life, convenience in maintenance, insusceptibility to interferences and the like.
Description
Technical field
The utility model relates to a kind of drive unit that is used on the oil-field oil pumper, specifically, relates to a kind of being applied on the oil pumper, can realize utilizing magnetic force to carry out automatic device driven.
Background technology
Frequency converter has been widely used in having produced huge effect for oil field energy saving in the field produces at present.But find through after the application of long period, there are the following problems after frequency converter applied to oil pumper: though the technology of frequency converter has developed quite ripely even to this day, but because frequency converter is a kind of electronic product of high complexity, therefore, the probability that breaks down is very high, and when fluctuation takes place electrical network, also be subjected to the interference of high order harmonic component easily and cause fluctuation of service.In addition, use frequency converter, for directly contact,, will directly influence the work of motor between the axle of motor and the load in case the load generation slightly shakes.
Summary of the invention
In order to solve the problems of the prior art that background technology proposes, the utility model provide a kind of new structure be used to realize oil pumper soft start and the flexible automatic control equipment of energy-conservation oil pumper magnetic force, that this kind control device has is reliable, long service life, be easy to the characteristics safeguarding and can not be subjected to the power network fluctuation influence.
The technical solution of the utility model is: the flexible automatic control equipment of this all oil pumper magnetic force comprises the sealed base and the load connecting axle of threephase asynchronous, motor reel mounting flange, the sealing protective that is " U " shape, external rotor, internal rotor, annular; Wherein, described external rotor and internal rotor are made by Nd-Fe-Bo permanent magnet material, and the magnetic polarity of described external rotor and internal rotor is opposite; The left end of described sealing protective fixes with the motor reel mounting flange and is connected, and its right-hand member is connected the back with sealed base by bolt and forms a working chamber; Described external rotor is fixed in this working chamber, also is positioned at this working chamber after passing the looping pit of sealed base central authorities after described internal rotor is connected on the load connecting axle, has the gap along rotor axial between described external rotor and the described internal rotor.
In addition, for guaranteeing sealing, can between described sealed base and sealing protective, be fixed with a sealing ring.Simultaneously, between described sealed base and described load connecting axle, be fixed with a cover column bearing.
The utlity model has following beneficial effect: the flexible automatic control equipment of this kind oil pumper magnetic force utilizes magneticaction to make transfer torque between motor and the load, therefore can not be subjected to the influence of power network fluctuation, and since motor the axle with load between do not take place directly to contact, therefore, when vibrations take place in load, can not have influence on the transmission of motor torque, the safety that can guarantee to move is with stable.In addition, this kind control device primary structure is a mechanical structure, and the frequency converter than adopting electronic component has stronger durability, and is easy to safeguard.
Description of drawings:
Fig. 1 is a composition structural representation of the present utility model.
1-threephase asynchronous among the figure, 2-motor reel mounting flange, 3-sealing protective, 4-external rotor, 5-sealed base, 6-load connecting axle, 7-internal rotor.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the flexible automatic control equipment of this kind oil pumper magnetic force comprises threephase asynchronous 1, motor reel mounting flange 2, is sealing protective 3, external rotor 4, the internal rotor 7 of " U " shape, the sealed base 5 and the load connecting axle 6 of annular; Wherein, described external rotor 4 and internal rotor 7 are made by Nd-Fe-Bo permanent magnet material, and the magnetic polarity of described external rotor 4 and internal rotor 7 is opposite; The left end of described sealing protective 3 fixes with motor reel mounting flange 2 and is connected, and its right-hand member is connected the back with sealed base 5 by bolt and forms a working chamber; Described external rotor 4 is fixed in this working chamber, also is positioned at this working chamber after passing the looping pit of sealed base 5 central authorities after described internal rotor 7 is connected on the load connecting axle 6, has the gap along rotor axial between described external rotor 4 and the described internal rotor 7.
In addition, for improving sealing, can between described sealed base 5 and sealing protective 3, be fixed with a sealing ring.In addition, for reducing frictional dissipation, can between described sealed base 5 and described load connecting axle 6, be fixed with a cover column bearing.
In use, load end is connected by flange or shaft coupling with load connecting axle 6, when rotating motor, external rotor begins rotation under the drive of motor, because inner and outer rotors has different magnetic poles, therefore, internal rotor can rotate thereupon, therefore driving load rotates, in start-up course, the gap between inner and outer rotors can dwindle gradually, until load stable operation, the gap maintains invariant state, has realized the soft start of oil pumper by said process.
Claims (3)
1. the flexible automatic control equipment of an oil pumper magnetic force, comprise threephase asynchronous (1), it is characterized in that: the flexible automatic control equipment of described oil pumper magnetic force also comprises motor reel mounting flange (2), is the sealed base (5) and the load connecting axle (6) of the sealing protective (3) of " U " shape, external rotor (4), internal rotor (7), annular; Wherein, described external rotor (4) and internal rotor (7) are made by Nd-Fe-Bo permanent magnet material, and the magnetic polarity of described external rotor (4) and internal rotor (7) is opposite; The left end of described sealing protective (3) fixes with motor reel mounting flange (2) and is connected, and its right-hand member is connected the back with sealed base (5) by bolt and forms a working chamber; Described external rotor (4) is fixed in this working chamber, described internal rotor (7) also is positioned at this working chamber after being connected in the looping pit that passes sealed base (5) central authorities after load connecting axle (6) is gone up, and has the gap along rotor axial between described external rotor (4) and the described internal rotor (7).
2. the flexible automatic control equipment of oil pumper magnetic force according to claim 1 is characterized in that: be fixed with a sealing ring between described sealed base (5) and the sealing protective (3).
3. the flexible automatic control equipment of oil pumper magnetic force according to claim 2 is characterized in that: be fixed with a cover column bearing between described sealed base (5) and described load connecting axle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201518471U CN202026262U (en) | 2011-05-13 | 2011-05-13 | Magnetic-force flexible automatic control device for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201518471U CN202026262U (en) | 2011-05-13 | 2011-05-13 | Magnetic-force flexible automatic control device for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026262U true CN202026262U (en) | 2011-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201518471U Expired - Fee Related CN202026262U (en) | 2011-05-13 | 2011-05-13 | Magnetic-force flexible automatic control device for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001334A (en) * | 2012-11-14 | 2013-03-27 | 广东电网公司佛山供电局 | Suspension power extraction device and suspension power extraction method |
-
2011
- 2011-05-13 CN CN2011201518471U patent/CN202026262U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001334A (en) * | 2012-11-14 | 2013-03-27 | 广东电网公司佛山供电局 | Suspension power extraction device and suspension power extraction method |
| CN103001334B (en) * | 2012-11-14 | 2016-06-08 | 广东电网公司佛山供电局 | A kind of suspension electricity getting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140513 |