CN202249961U - Pumping unit for oil field - Google Patents
Pumping unit for oil field Download PDFInfo
- Publication number
- CN202249961U CN202249961U CN2011202540792U CN201120254079U CN202249961U CN 202249961 U CN202249961 U CN 202249961U CN 2011202540792 U CN2011202540792 U CN 2011202540792U CN 201120254079 U CN201120254079 U CN 201120254079U CN 202249961 U CN202249961 U CN 202249961U
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- China
- Prior art keywords
- chain
- walking beam
- oil
- oil field
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pumping unit for an oil field. An output shaft of a speed reducer (1) driven by a motor is connected with a chain transmission mechanism; the tail part of a swing walking beam (9) hinged to a stand (8) is provided with a sliding chute (4); a transmission chain in the chain transmission mechanism is provided with a special chain knot (7); and the special chain knot (7) and the sliding chute (4) on the swing walking beam (9) form movable pair connection. During running of the pumping unit, output torque of the output shaft of the speed reducer can be changed to adapt to a fluctuating load working condition of an oil well so as to realize the purposes of better energy conservation and consumption reduction.
Description
Technical field
The utility model relates to a kind of oil rig of oil field oil recovery usefulness, is that oil pumper is used in a kind of oil field specifically, and it can change the output torque of reducer output shaft to adapt to the varying load operating mode of oil well in running.
Background technology
The oil field oil pumping system is made up of oil pumper, sucker rod and plunger displacement pump.Oil pumper is on ground, and plunger displacement pump is in the down-hole, the connection of sucker rod between them.Oil pumper is the main oil production equipment in oil field, is made up of motor, reducer, movement transferring etc.The core component of oil pumper is a transmission mechanism, and its performance quality has determined the complete machine operation conditions.When oil pumper was worked, plunger displacement pump promoted crude oil when upstroke promoted, and load is bigger, and plunger displacement pump oil suction when down stroke is transferred, load is less.The cyclically-varying that this has just caused service load makes that machine operation is unstable, energy consumption is high.
Have the bar plunger displacement pump in the course of the work load be cyclically-varying, make motor in the upstroke lifting process, do work, and down stroke is transferred in the process compelled generating, this is very unfavorable to motor.Conventional sucker-rod pumping machine is provided with the potential energy that balance weight transfers process with down stroke and stores and release when upstroke promotes, can slow down the influence that the imbalance of load in up-down stroke causes oil pumper.But the balance weight that is provided with changes by the standard sine rule; And the cyclically-varying of load is relevant with oil well condition, and rule is complicated and changeable, so this two kinds of Changing Patterns generally can not fit like a glove; So; The fluctuation of reducer output torque peak value is still very big, causes the motor installed power excessive, does not reach desirable energy-saving effect.The basic reason that produces this phenomenon is an oil pumper in process up and down, and the variation of property loading period causes.
Summary of the invention
The purpose of the utility model provides a kind of oil field that can in running, change the moment transmission and uses oil pumper.
Oil pumper is used in the oil field that the utility model provides; Output shaft by motor-driven reducer is connected to chain-drive mechanism; The swing walking beam afterbody that is hinged on the frame has a chute; Driving chain in the chain-drive mechanism is provided with specific links, and this specific links is formed moving sets with the chute on the swing walking beam and is connected.
Described chain-drive mechanism is made up of two-stage chain drive; Each level is parallel double sprocket wheel layout and symmetry is installed; Specific links on the back one-level two chaindriven driving chains links to each other through connecting axle synchronously, and the connecting axle medium position is equipped with roller, and roller is installed in the chute of swing walking beam.
Two sprocket wheels in the back one-level chain drive are arranged up and down, wherein following sprocket wheel and the coaxial installation of the driven sprocket of previous stage.
The beneficial effect of the utility model is can reduce reducer output torque peak difference, minimizing installed power, the energy-saving and cost-reducing preferably purpose of realization.
Description of drawings
Fig. 1 is the fundamental diagram of the utility model.
Fig. 2 is double-stranded wheel drive mechanism figure.
The specific embodiment
With reference to Fig. 1, Fig. 2; Oil pumper is used in the oil field that the utility model provides; Output shaft by motor-driven reducer 1 is connected to chain-drive mechanism, and swing walking beam 9 afterbodys that are hinged on the frame 8 have a chute 4, and the front end of swing walking beam 9 has polished rod eye 5; Driving chain in the chain-drive mechanism is provided with specific links 7, and this specific links 7 is formed moving sets with the chute 4 on the swing walking beam 9 and is connected.
In above-mentioned; Described chain-drive mechanism is made up of two-stage chain drive (2,10); Each level is parallel double sprocket wheel layout and symmetry is installed; Specific links 7 on the driving chain 3 of back one-level two chain drive 10 links to each other through connecting axle 11 synchronously, and connecting axle 11 medium positions are equipped with roller 12, and roller 12 is installed in the chute 4 of swing walking beam 9.
Two sprocket wheels, 6 sizes in the back one-level chain drive 10 are identical, and arrange up and down, and following sprocket wheel 6 and the coaxial installation of the driven sprocket of previous stage chain drive 2.
Because chain-drive mechanism is consistent with the plane of movement of swing walking beam 9; And specific links 7 is to make the orbiting motion in oval week along driving chain 3; Like this; Specific links 7 is promptly swung walking beam 9 and frame 8 pin joints with respect to the swing point of swing walking beam 9 distance with regard to be not fixed length (doing cyclically-varying), probably differ the diameter of a sprocket wheel 6.This distance is longer when upstroke, makes bigger polished rod load diminish through the principle of lever ratio, thereby reduces acting on the moment of reducer 1, and just opposite when down stroke.This through changing the method that arm of force length changes moment; Neutralized because the negative effect that the fluctuation of down-hole load brings reducer; The fluctuation of reducer 1 output torque peak value is reduced, optimize the working environment of reducer, realize energy-conservation purpose.
Adopting the parallel double sprocket wheel to arrange, is another characteristic of the utility model.Two output shafts by reducer 1 drive, and drive back one-level two chain drive 10 rotations synchronously through chain drive 2 and are synchronized with the movement.The roller of installing on the connecting axle 11 12 is connected with the chute 4 of swing walking beam 9; The stress model of connecting axle 11 promptly becomes simply supported beam like this; It can bear bigger lateral bending moment than cantilever construction form, effectively avoids specific links 7 to receive lateral bending moment at work and the unnecessary destruction of causing.
During use, drive chain-drive mechanism by motor-driven reducer 1, the chain drive 2 of previous stage drives back one-level chain drive 10 and rotates; Specific links 7 on the driving chain 3 is reciprocating along driving chain 3 tracks; Drive connecting axle 11 motions, the roller on the connecting axle 11 12 rolls in the chute 4 of swing walking beam 9 simultaneously relatively like this, makes swing walking beam 9 realize swing through frame 8; Drive polished rod load and realize oil pumping campaign up and down reciprocatingly, lifting load.
Claims (3)
1. oil pumper is used in an oil field; It is characterized in that; Output shaft by motor-driven reducer (1) is connected to chain-drive mechanism; Swing walking beam (9) afterbody that is hinged on the frame (8) has a chute (4), and the driving chain in the chain-drive mechanism is provided with specific links (7), and this specific links (7) is formed moving sets with the chute (4) on the swing walking beam (9) and is connected.
2. oil pumper is used in oil field according to claim 1; It is characterized in that; Described chain-drive mechanism is made up of two-stage chain drive (2,10), and each level is parallel double sprocket wheel layout and symmetry is installed, and the specific links (7) on the driving chain (3) of back one-level two chain drive (10) is continuous synchronously through connecting axle (11); Connecting axle (11) medium position is equipped with roller (12), and roller (12) is installed in the chute (4) of swing walking beam (9).
3. oil pumper is used in oil field according to claim 2, it is characterized in that, two sprocket wheels (6) in the back one-level chain drive (10) are arranged up and down, and following sprocket wheel and the coaxial installation of the driven sprocket of previous stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202540792U CN202249961U (en) | 2011-07-19 | 2011-07-19 | Pumping unit for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202540792U CN202249961U (en) | 2011-07-19 | 2011-07-19 | Pumping unit for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249961U true CN202249961U (en) | 2012-05-30 |
Family
ID=46111220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202540792U Expired - Fee Related CN202249961U (en) | 2011-07-19 | 2011-07-19 | Pumping unit for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996747A (en) * | 2012-12-25 | 2013-03-27 | 孙继辉 | Chain driving reversing device and method of beam-pumping unit |
| CN104989605A (en) * | 2015-07-14 | 2015-10-21 | 项蜀忠 | Device for generating power by utilizing swinging of walking beam of beam-pumping unit |
-
2011
- 2011-07-19 CN CN2011202540792U patent/CN202249961U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996747A (en) * | 2012-12-25 | 2013-03-27 | 孙继辉 | Chain driving reversing device and method of beam-pumping unit |
| CN104989605A (en) * | 2015-07-14 | 2015-10-21 | 项蜀忠 | Device for generating power by utilizing swinging of walking beam of beam-pumping unit |
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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: 20120530 Termination date: 20120719 |