CN2589671Y - Straight drive head sheave pumping unit - Google Patents
Straight drive head sheave pumping unit Download PDFInfo
- Publication number
- CN2589671Y CN2589671Y CN 02288796 CN02288796U CN2589671Y CN 2589671 Y CN2589671 Y CN 2589671Y CN 02288796 CN02288796 CN 02288796 CN 02288796 U CN02288796 U CN 02288796U CN 2589671 Y CN2589671 Y CN 2589671Y
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- China
- Prior art keywords
- head sheave
- rotor
- utility
- model
- pumping unit
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Abstract
The utility model relates to a direct driven type head sheave oil pumping unit, which relates to a machine used for oil exploitation. In order to overcome the defects of complex reversing mechanism, large power consumption of the whole machine, etc. in the existing oil pumping unit, the utility model is provided. The utility model comprises an electromotor 1, a machine frame 6, a machine base 10, a balancing block 8, a control cabinet 9, a rope hanger 11 and an oil pumping polished rod 13, wherein, a rotor 2 and a stator 3 of an electromotor 1 are arranged above the machine frame 6 by a shaft 4, and the rotor 2 makes coaxial rotation relative to the stator 3. The outer circular of the rotor 2 is a head sheave 21, and a flexible connecting piece 5 is respectively connected with the balancing block 8 and the rope hanger 11. The shaft 4 is provided with an angular displacement sensor 22, and the angular displacement sensor 22 is connected with a programmable controller 14 in the control cabinet 9. The oil pumping unit of the utility model realizes reversing operation by controlling the turning of the electromotor; the utility model has the advantages of simple structure, small ground occupation, low energy consumption, and convenient operation.
Description
Technical field
The utility model relates to a kind of recover petroleum oil pumper, particularly relates to a kind of direct-drive type head sheave oil pumper.
Background technology
Continuous development along with the sucker rod pumping technology, various new pumping units are succeeded in developing in succession, as blue elephants such as prefix type, eccentrically arranged type, incorgruous type, air-balance formula beam pumping unit and chain type, belt-type, drum-type, tower-types, various oil pumper comes into operation in the production scene, improved the runnability of oil pumper to a certain extent, reduce energy consumption, improved system effectiveness.Yet, because beam pumping unit is subjected to its structural constraint, existing that counterbalance effect is poor, point suspension movement speed is big, deficiencies such as energy consumption is many, system effectiveness is low, difficulty of parameter tuning, the volume of long stroke pumping unit is greatly and Heavy Weight simultaneously; Chain drive pumping unit in the no beam pumping unit, wide belt-type oil pumper are improved the deficiency of above-mentioned beam pumping unit, but still are type of drive with high speed rotary powers such as electric rotating machine, natural gas engine and diesel engines.
On December 22nd, 1999, disclosed CN2355129 China utility model patent " a kind of derrick formula long stroke pumping unit " was made up of motor, reversing arrangement, reducer, lift chains, head sheave, support.Its major technique feature is that reversing arrangement adopts the electromagnetic speed-adjusting clutch to realize forward and reverse rotation of power output shaft; One end of lift chains links to each other with polished rod eye by head sheave, and the other end directly links to each other with the counterweight case, adopts direct balance mode; The Chinese utility model patent " head sheave long stroke pumping unit " of disclosed CN2514114 on October 02nd, 2002, this machine is provided with crank rope sheave mechanism, be by crank, flexible piece and coaxial with head sheave, and the rope sheave that is fixed on the head sheave both sides and is used to drive head sheave swing constitutes, and is connected by flexible piece between rope sheave and the crank.When engine drives reducer and drive the crank rotation of circular motion, be subjected to pining down of flexible piece, make it drive rope sheave and carry out reciprocally swinging, head sheave also is synchronized with the movement thereupon.Many, the complex structure of changement component of above-mentioned technology, floor space is big, by the mechanical energy losses that middle transmission, speed change, switching mechanism cause, has reduced electric efficiency and mechanical system efficient inevitably.
The utility model content
The purpose of this utility model is in order to overcome above-mentioned deficiency, to provide a kind of by motor direct-drive, by the control of rotor direction of rotation being finished the direct-drive type head sheave oil pumper of oil pumper commutation.
In order to achieve the above object, the utility model direct-drive type head sheave oil pumper comprises motor, frame, support, balance weight, switch board, polished rod eye, oil pumping polish rod, the rotor of described motor and stator are fixed in the top of frame by axle, and rotor is made coaxial rotation with respect to stator; The cylindrical of described rotor is a head sheave, and flexible connecting member is connected with polished rod eye with balance weight respectively by head sheave; On the described axle angular displacement sensor is installed, angular displacement sensor is connected with programmable logic controller in the switch board; Described motor is a slowspeed machine, and rotating speed is 0.5～30r/min; Described flexible connecting member is fixedlyed connected with head sheave.
The beneficial effect of the utility model direct-drive type head sheave oil pumper is: by control, finish oil pumper commutation to motor steering, simple in structure, take up an area of little, power consumption is few, is convenient to operation.
Description of drawings
Fig. 1 is the utility model direct-drive type head sheave oil pumper structural representation.
Fig. 2 is the utility model direct-drive type head sheave pumping-unit motor structure first embodiment schematic diagram.
Fig. 3 is the utility model direct-drive type head sheave pumping-unit motor structure second embodiment schematic diagram.
Fig. 4 is that the utility model direct-drive type head sheave oil pumper is at deflecting well oil withdrawal work schematic diagram.
Fig. 5 is the state diagram when workover treatment of the utility model direct-drive type head sheave oil pumper.
Fig. 6 is another embodiment schematic diagram of the utility model direct-drive type head sheave pumping-unit motor.
1. motors among the figure, 2. rotor, 3. stator, 4. spool, 5. flexible connecting member, 6. frame, 7. bracing frame, 8. balance weight, 9. switch board, 10. support, 11. polished rod eye, 12. pulling force sensors, 13. oil pumping polish rods, 14. programmable logic controller, 15. well heads, 21. head sheaves, 22. angular displacement sensor, 23. electric machine supports, 24. keys.
The specific embodiment
With reference to Fig. 1, the utility model direct-drive type head sheave oil pumper comprises motor 1, frame 6, support 10, balance weight 8, switch board 9, polished rod eye 11, oil pumping polish rod 13.The rotor 2 of motor 1 and stator 3 are fixed in the top of frame 6 by axle 4, and rotor 2 is made coaxial rotation with respect to stator 3.The cylindrical of rotor 2 is a head sheave 21, and flexible connecting member 5 is connected with polished rod eye 11 with balance weight 8 respectively by head sheave 21.On the axle 4 angular displacement sensor 22 is installed, the model of angular displacement sensor can be NSRO-3, л 12LD etc., angular displacement sensor 22 is connected with programmable logic controller 14 in the switch board 9, by the rotating speed of programmable logic controller 14 control motors 1 and the size of corner, and the commutation of control motor 1, realize the commutation of oil pumper by control rotor 2 anglecs of rotation and direction of rotation.
With reference to Fig. 1 and Fig. 5, for the ease of workover rig service to oil well, the lower end of the utility model mid frame 6 can be " V " type, and hinged with support 10; A telescopic bracing frame 7 is arranged, and an end of bracing frame 7 and the middle part of frame 6 are hinged, and the other end and support 10 are hinged; Bracing frame 7 one ends hinged with support 10 can slide along slideway.By adjusting the length of bracing frame 7, and cooperate the angle of adjustable complete machine frame 6 with slideway.When carrying out operations such as well workover, bracing frame 7 moves to the direction away from well head along slideway, makes derrick 6 depart from 15 1 angles of well head, for well workover provides working space.
The utility model can also be finished deflecting well oil withdrawal operation (as shown in Figure 4), but needs to adjust the distance of oil pumper and well head, or adjusts the angle that frame 6 tilts.
On polished rod eye 11 pulling force sensor 12 can also be installed, the model of pulling force sensor 12 is CSCYG105 (115), P19 or AK-4 etc.Pulling force sensor 12 is connected with programmable logic controller 14, by the data analysis to pulling force sensor 12, can determine the weight of balance weight 8.
Another embodiment of the present utility model is installed in motor 1 on the base 10, as shown in Figure 6.Motor 1 is fixedly mounted on the base 10, and head sheave 21 is installed in the top of frame 6, and flexible connecting member 5 is fixed on the rotor 2, one end is connected with balance weight 8, the other end by rotor 2, again walk around head sheave 21 after, be connected frame 6 angle that can suitably tilt with polished rod eye 11.
Claims (4)
1. direct-drive type head sheave oil pumper, comprise motor, frame, support, balance weight, switch board, polished rod eye, oil pumping polish rod, it is characterized in that: the rotor (2) of described motor (1) and stator (3) are installed in the top of frame (6) by axle (4), and rotor (2) is made coaxial rotation with respect to stator (3); The cylindrical of described rotor (2) is head sheave (21), and flexible connecting member (5) is connected with polished rod eye (11) with balance weight (8) respectively by head sheave (21); On the described axle (4) angular displacement sensor (22) is installed.
2. direct-drive type head sheave oil pumper according to claim 1 is characterized in that: the rotating speed of described motor (1) is 0.5～30r/min.
3. direct-drive type head sheave oil pumper according to claim 1 is characterized in that: described flexible connecting member (5) is fixedlyed connected with head sheave (21).
4. direct-drive type head sheave oil pumper according to claim 1, it is characterized in that: described motor (1) is fixedly mounted on the base (10), head sheave (21) is installed in the top of frame (6), flexible connecting member (5) is fixed on the rotor (2), one end is connected with balance weight (8), the other end is connected with polished rod eye (11) by rotor (2), walk around head sheave (21) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288796 CN2589671Y (en) | 2002-12-09 | 2002-12-09 | Straight drive head sheave pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288796 CN2589671Y (en) | 2002-12-09 | 2002-12-09 | Straight drive head sheave pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589671Y true CN2589671Y (en) | 2003-12-03 |
Family
ID=33748557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288796 Expired - Fee Related CN2589671Y (en) | 2002-12-09 | 2002-12-09 | Straight drive head sheave pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589671Y (en) |
-
2002
- 2002-12-09 CN CN 02288796 patent/CN2589671Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |