CN202068288U - Magnetic and flexible automatic speed reduction driving device - Google Patents
Magnetic and flexible automatic speed reduction driving device Download PDFInfo
- Publication number
- CN202068288U CN202068288U CN2011201518240U CN201120151824U CN202068288U CN 202068288 U CN202068288 U CN 202068288U CN 2011201518240 U CN2011201518240 U CN 2011201518240U CN 201120151824 U CN201120151824 U CN 201120151824U CN 202068288 U CN202068288 U CN 202068288U
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- flexible automatic
- sealed base
- magnetic
- automatic speed
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Abstract
The utility model relates to a magnetic and flexible automatic speed reduction driving device, which mainly solves the problem of high fault rate of the prior art adopting a frequency converter to control an oil pumping machine and is characterized by also comprising a flange, a sealing protection cover, an outer rotor, an inner rotor, a sealed base, an annular outer sleeve, a rolling ball bearing and a load connecting shaft, the outer rotor is made of magnetism conduction steel materials and is wound by a magnet exciting coil, the inner rotor is made of permanent magnetic materials, the left end of the sealed protection cover is fixedly connected with the flange connected with a motor shaft, the right end of the sealed protection cover is sequentially connected with the annular outer sleeve and the sealed base through screw bolts, the outer rotor is fixed on the outer sleeve through the rolling bearing, the inner rotor penetrates through an annular hole arranged in the center of the sealed base after being connected onto the load connecting shaft, a gap exists between the outer rotor and the inner rotor in the axial direction of the rotor, the magnetic and flexible automatic speed reduction driving device also comprises a magnet exciting controller, and output magnet exciting signals are input onto the magnet exciting coil through an electric brush and a slide ring fixed on the outer rotor. The magnetic and flexible automatic speed reduction driving device has the characteristics that the operation is stable, the speed is automatically regulated, the maintenance is convenient, the device can not be easily interfered, 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 device that magnetic force drives automatically and that have the adjustable speed function.
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, the load output speed is adjustable, 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 speed regulation drive unit of this kind magnetic force comprises the sealed base of threephase asynchronous, motor reel mounting flange, the sealing protective that is " U " shape, external rotor, internal rotor, annular, the ring-shaped jacket that has the bearing embedded groove, ball bearing and load connecting axle; Wherein, described external rotor is made for the magnetic conduction rigid material, its outer winding magnet exciting coil made of copper, and described internal rotor is made by Nd-Fe-Bo permanent magnet material; The left end of described sealing protective fixes with the motor reel mounting flange and is connected, and its right-hand member is connected back with sealed base by bolt with ring-shaped jacket successively and forms a working chamber; Described external rotor is fixed in the overcoat by ball bearing, 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; There is the gap along rotor axial between described external rotor and the described internal rotor.In addition, the flexible automatic control equipment of described oil pumper magnetic force also comprises the excitation controller of a scalable exciting current, and the excitation signal of described excitation controller output is input on the described magnet exciting coil through brush and the slip ring that is fixed on the external 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.The external rotor of this kind of device adopts the magnetic conductor excitation structure, therefore, and after the size that changes exciting current, will make that rotating magnetic field changes, further have influence on the size of the load torque of output, thereby make drive unit adjust revolutional slip automatically, realized the function of automatic speed regulation.
Description of drawings:
Fig. 1 is a composition structural representation of the present utility model.
Fig. 2 is the electrical schematic diagram of excitation controller described in the 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, 8-ring-shaped jacket, 9-ball bearing, 10-magnet exciting coil.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1; the flexible automatic speed regulation drive unit of this kind magnetic force comprises threephase asynchronous 1, motor reel mounting flange 2, is sealing protective 3, external rotor 4, internal rotor 7, the sealed base 5 of annular, the ring-shaped jacket 8 that has the bearing embedded groove, ball bearing 9 and the load connecting axle 6 of " U " shape.Wherein, described external rotor 4 is made for the magnetic conduction rigid material, and it is outer to twine magnet exciting coil 10 made of copper, and described internal rotor 7 is made by Nd-Fe-Bo permanent magnet material; 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 back with sealed base 5 by bolt with ring-shaped jacket 8 successively and forms a working chamber; Described external rotor 4 is fixed in the overcoat 8 by ball bearing 9, 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; There is the gap along rotor axial between described external rotor 4 and the described internal rotor 7; The flexible automatic control equipment of described oil pumper magnetic force also comprises the excitation controller of a scalable exciting current, and the excitation signal of described excitation controller output is input on the described magnet exciting coil 10 through brush and the slip ring that is fixed on the external rotor 4.The electrical schematic diagram of described excitation controller as shown in Figure 2, wherein, three-phase alternating-current supply V is by output DC excitation electric current after the three-phase full wave rectifier circuit T rectification, be input on the magnet exciting coil L through adjustable resistor R, the magnet exciting coil L here is exactly the magnet exciting coil made of copper 10 described in the utility model.Behind the resistance of adjusting adjustable resistor R, exciting current can change thereupon, thereby makes rotating magnetic field change, and further has influence on the size of the load torque of output, thereby makes drive unit adjust revolutional slip automatically, has realized the function of automatic speed regulation.
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, and 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 drives load and rotates, in start-up course, gap between inner and outer rotors can dwindle gradually, and until load stable operation, the gap maintains invariant state.
The soft start and the speed governing of oil pumper have been realized by said process.
Claims (3)
1. the flexible automatic speed regulation drive unit of a 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 sealing protective (3), external rotor (4), internal rotor (7), the sealed base (5) of annular, the ring-shaped jacket (8) that has the bearing embedded groove, ball bearing (9) and the load connecting axle (6) of " U " shape; Wherein, described external rotor (4) is made for the magnetic conduction rigid material, its outer magnet exciting coil made of copper (10) that twines, and described internal rotor (7) is made by Nd-Fe-Bo permanent magnet material; 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 back with sealed base (5) by bolt with ring-shaped jacket (8) successively and forms a working chamber; Described external rotor (4) is fixed in the overcoat (8) by ball bearing (9), and 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; There is the gap along rotor axial between described external rotor (4) and the described internal rotor (7); The flexible automatic control equipment of described oil pumper magnetic force also comprises the excitation controller of a scalable exciting current, and the excitation signal of described excitation controller output is input on the described magnet exciting coil (10) through brush and the slip ring that is fixed on the external rotor (4).
2. the flexible automatic speed regulation drive unit of 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 speed regulation drive unit of 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 |
|---|---|---|---|
| CN2011201518240U CN202068288U (en) | 2011-05-13 | 2011-05-13 | Magnetic and flexible automatic speed reduction driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201518240U CN202068288U (en) | 2011-05-13 | 2011-05-13 | Magnetic and flexible automatic speed reduction driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068288U true CN202068288U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201518240U Expired - Fee Related CN202068288U (en) | 2011-05-13 | 2011-05-13 | Magnetic and flexible automatic speed reduction driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941413A (en) * | 2020-07-27 | 2020-11-17 | 长春工业大学 | Novel electromagnetic controllable flexible driving device and control method thereof |
-
2011
- 2011-05-13 CN CN2011201518240U patent/CN202068288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941413A (en) * | 2020-07-27 | 2020-11-17 | 长春工业大学 | Novel electromagnetic controllable flexible driving device and control method thereof |
| CN111941413B (en) * | 2020-07-27 | 2021-05-25 | 长春工业大学 | Electromagnetic controllable flexible driving device and control method thereof |
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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: 20111207 Termination date: 20130513 |