CN208578554U - A kind of servo electric cylinders driving beam pumping unit - Google Patents
A kind of servo electric cylinders driving beam pumping unit Download PDFInfo
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- CN208578554U CN208578554U CN201820971515.XU CN201820971515U CN208578554U CN 208578554 U CN208578554 U CN 208578554U CN 201820971515 U CN201820971515 U CN 201820971515U CN 208578554 U CN208578554 U CN 208578554U
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- electric cylinders
- ball
- servo electric
- pumping unit
- outer tube
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Abstract
The utility model relates to oil exploitation machinery fields, and in particular to a kind of servo electric cylinders driving beam pumping unit.A kind of servo electric cylinders driving beam pumping unit, including horse head, walking beam, walking beam support base, bracket, balance weight, driving device and pedestal, walking beam is erected at the top of bracket by walking beam support base brace type, one end of walking beam is provided with balance weight, the other end is provided with horse head, frame bottom is mounted on the base, and driving device is servo electric cylinders driving device, and the both ends of servo electric cylinders driving device are connect with walking beam and pedestal respectively.Due to the adoption of the above technical scheme, the utility model, which is realized, carries out accurate control to pumping unit operating condition and has saved the energy, and resonance caused by capable of effectively reducing because of crank connecting link, extends the service life of pumping unit.
Description
Technical field
The utility model relates to oil exploitation machinery fields, and in particular to a kind of servo electric cylinders driving beam pumping unit.
Background technique
The basic characteristics of beam pumping unit are that structure is simple, and manufacture is easy, and easy to use, especially it can exist for a long time
The round-the-clock operating in oil field, using reliable.Therefore, although it that there are the acceleration of horse head point suspension movement is larger, counterbalance effect is poor,
The disadvantages of efficiency is lower, volume is larger and heavy in long stroke, but still be current most widely used pumping unit.It answers at present
Beam pumping unit for oil extraction in oil field mainly has two classes: one kind is that traditional motor drives the beam type of speed reducer drive to take out
Oil machine, another kind of is the permanent magnet direct driving motor beam pumping unit without speed reducer developed in recent years.
Currently, beam pumping unit be all made of motor, crank, speed reducer as driving device drive walking beam do periodically it is past
Multiple movement.This driving device, which cannot achieve, accurately controls the case where walking beam stress, therefore pumping unit is put down at runtime
The phenomenon that stability is poor, and being also easy to produce resonance leads to the reduced service life of driving device, and there are waste of energy.
Utility model content
The purpose of the utility model is to provide a kind of servo electric cylinders to drive beam pumping unit, solves the above technology and asks
Topic.
The technical issues of the utility model is solved can be realized using following technical scheme:
A kind of servo electric cylinders driving beam pumping unit, including horse head, walking beam, walking beam support base, bracket, balance weight, drive
Dynamic device and pedestal, the walking beam are erected at the top of the bracket by the walking beam support base brace type, the walking beam
One end is provided with balance weight, and the other end is provided with the horse head, and the frame bottom is mounted on the base；
The walking beam makees reciprocal swinging arm after its tie point rotation with the walking beam support base, so that horse head is put
It drives oil pick-up tube to be promoted or fallen in oil well after dynamic, the oil plant in oil field is extracted with this；
The driving device is servo electric cylinders driving device, between the horse head and the walking beam support base, and
Its both ends is connect with the walking beam and the pedestal respectively, and servo electric cylinders driving device is used to that walking beam to be driven to do periodic wobble,
And adjustment output power in time, the upper end connection of servo electric cylinders driving device can be carried out according to operating condition of the oily situation to pumping unit
The walking beam, lower end connect the pedestal.
The utility model replaces traditional crank motor driver by using servo electric cylinders driving device, using servo
Electric cylinders can adjust at any time the characteristic of output frequency according to operating condition, make pumping unit when in use can according to oil there are also soil property situation into
Row timely adjusts the output power of pumping unit, reduces the resonance that pumping unit generates in use, to extend oil pumping
The service life of machine.
The servo electric cylinders driving device includes a servo motor, a ball-screw, an outer tube and an inner sleeve, described
Ball-screw is fixed in the outer tube, and the outer tube is sheathed on outside the inner sleeve, and the servo motor passes through connection
Part is connect with the upper end of the ball-screw.
The inner sleeve and the outer tube are clearance fit, the inner wall of the outer wall of the inner sleeve and the outer tube it
Between it is spaced apart, both make can it is nested and make outer tube on inner sleeve opposite sliding to realize outer tube along inner sleeve
Outer wall lifting.
It is connected between the upper port of the inner sleeve and the ball-screw by the first fixation kit, the described first fixed group
The inner wall clearance fit of part and outer tube.
Preferably, first fixation kit includes ball nut and ball nut mount, and wherein ball nut is set to inner sleeve
Between pipe and ball-screw, and ball nut is fixed in the ball nut mount at the upper port of the inner sleeve, ball nut
Seat and outer tube clearance fit, make outer tube moving up and down along ball nut mount.The ball nut works in pumping unit
When do not rotate, the operation for proposing or declining is done in ball-screw spinning.
When utility model works, servo electric cylinders are in vertical placement status, and the upper end connects walking beam, and lower end connects pedestal,
When walking beam swing arm, outer tube is slided up and down in interior sleeve outer wall, to make ball-screw move up and down with outer tube, via rolling
Screw-in of the ballscrew in ball nut, which screws out, drives ball nut rotation.Ball nut is used for the non-radial displacement of ball-screw
It is limited, is avoided because pumping unit generates shaking at work and ball-screw is caused to shift and damage.
The connector is shaft coupling, is connected between the servo motor and ball-screw using shaft coupling, and servo motor is logical
Crossing shaft coupling drives ball-screw to do rotation and lifting.When walking beam does step-down operation, ball-screw is immersed in positioned at outer tube
In the mineral oil of lower section；After walking beam is promoted ball-screw can self-lubricating, to play protection ball-screw and ball nut
Purpose.
Be additionally provided with the second fixation kit between the shaft coupling and ball-screw, the second fixation kit be used for ball-screw with
The junction of shaft coupling carries out position and fixes, and the double swerve for preventing ball-screw from non-rotation occurs causes damage to shaft coupling
It is bad.
Preferably, second fixation kit includes the bearing being fixed on outer sleeve inner wall, and the bearing passes through circle spiral shell
Mother is fixedly connected with shaft coupling, drives outer tube one to act as corresponding movement when ball-screw being made to do spinning up and down motion.
The outer tube is equipped with limiting device, and the limiting device includes position limit device and lower caging device, wherein
Position limit device is for limiting the extreme higher position that ball nut rises relative to outer tube, and lower caging device is for limiting ball spiral shell
The extreme lower position that parent phase declines outer tube.
The limiting device selects bolt.
The upper end of the servo electric cylinders driving device is connect by first axle with the walking beam, lower end passes through second hinge
It is connect with the pedestal.
The servo motor is connect using attachment base with outer tube, and outer tube is when pumping unit works on ball-screw
Lower movement.
Guide sleeve is equipped between the lower port of the outer tube and the inner sleeve pipe outer wall.
The utility model has the advantages that due to the adoption of the above technical scheme, the utility model, which is realized, carries out essence to pumping unit operating condition
Really the energy has been saved in control, and resonance caused by capable of effectively reducing because of crank connecting link, extends the service life of pumping unit.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the servo electric cylinders device in Fig. 1.
In figure: 1, horse head, 2, walking beam, 3, walking beam support base, 4, bracket, 5, balance weight, 6, driving device, 7, pedestal；
601, upper hinge, 602, motor cabinet, 603, servo motor, 604, attachment base, 605, shaft coupling, 606, round nut,
607, bearing block, 608, bearing, 609, upper bolt, 610, ball-screw, 611, ball nut, 612, ball nut mount, 613,
Outer tube, 614, lower bolt, 615, guide sleeve, 616, inner sleeve, 617, lower hinge.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face, which combines to be specifically illustrating, is further described the utility model.
Referring to Fig.1, a kind of servo electric cylinders drive beam pumping unit, including horse head 1, walking beam 2, bracket 4,5 and of balance weight
Pedestal 7, walking beam 2 is by the downward connecting bracket 4 of walking beam support base 3, and drive is arranged in connection pedestal 7, the right end of walking beam 2 to bracket 4 downwards
Horse head 2 is arranged in dynamic device 6, left end.Horse head 2 is preferably connect with walking beam 3 with welding manner.Walking beam 2 is around itself and walking beam support base 3
Tie point rotation after make reciprocal swinging arm, thus make horse head 2 swing after oil pick-up tube is promoted or is fallen in oil well, with
This extracts the oil plant in oil field.Driving device 6 is servo electric cylinders driving device, uses servo electric cylinders as power source, passes through
Servo motor drives the oscilaltion of ball-screw to realize the accurate control to pumping unit operating status.
Referring to Fig. 2, the upper end of driving device 6 is connect by upper hinge 601 with walking beam 2, lower end passes through lower hinge 617 and bottom
Seat 7 connects.Driving device includes servo motor 603, ball-screw 610, outer tube 613, inner sleeve 616 and ball nut 611,
Ball-screw 610 is connect using shaft coupling 605 with servo motor 603, and outer tube 613 is sheathed on outside inner sleeve 616, inner sleeve
616 are equipped with ball nut 611, and ball nut 611 screws on ball-screw 610.Servo motor 603 by motor cabinet 602 with
Upper hinge 601 connects, and servo motor 603 is set to the upper end of ball-screw 610.Servo motor 603 is by attachment base 604 and outside
Casing 613 connects.
Inner sleeve 616 and outer tube 613 are clearance fit, between the outer wall of inner sleeve 616 and the inner wall of outer tube 613 between
At a certain distance, both make can it is nested and make outer tube 613 on inner sleeve 616 opposite sliding come realize outer tube 613 along
The lifting of 616 outer wall of inner sleeve.
Ball nut 611 is fixed in ball nut mount 612, and ball nut mount 612 is fixed on the upper port of inner sleeve 616
Place makes ball nut 611 keep opposing stationary when ball-screw 610 moves, and plays limitation ball-screw and does not generate level side
To displacement effect with reduce resonance.There is the gaps of 1mm ~ 5mm between ball nut mount 612 and outer tube 613, so that outside
Casing 613 can be moved up and down relative to inner sleeve.
Bearing 608 is equipped on ball-screw, bearing 608 is fixed on the bearing block 607 on outer sleeve inner wall.When
When servo motor drives ball-screw to rotate and upgrade or decline, bearing 608 drives outer tube also to do the identical movement in place.In order to limit
At a distance from ball-screw 610, the lower end of shaft coupling is fixed shaft coupling 605 processed using round nut 606, prevents ball-screw
610 cause the damage of shaft coupling when doing promotion or step-down operation due to inertia stretching or extruding shaft coupling.
It is plugged with upper bolt 609 on the outer tube 613 being located at below bearing 608, is plugged with underthrust on inner sleeve 616
Pin 614.Upper bolt 609 and lower bolt 614 are for limiting outer tube in the displacement of vertical direction, thus to ball-screw 610
Stroke limits, so that ball-screw 610 can invade in the mineral oil of inner sleeve bottom of the tube when decline, mentions
Self-lubricating extends the service life of ball-screw when rising.The position of upper bolt 609 and lower bolt 614 can be according to ball-screw
Length and operating condition are adaptively adjusted.Guide sleeve is additionally provided between 616 outer wall of lower port and the inner sleeve of outer tube 613
615。
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (9)
1. a kind of servo electric cylinders drive beam pumping unit, including horse head, walking beam, walking beam support base, bracket, balance weight, driving
Device and pedestal, the walking beam are erected at the top of the bracket by the walking beam support base brace type, and the one of the walking beam
End is provided with balance weight, and the other end is provided with the horse head, and the frame bottom is mounted on the base, which is characterized in that
The driving device is servo electric cylinders driving device, the both ends of the servo electric cylinders driving device respectively with the walking beam and described
Pedestal connection.
2. a kind of servo electric cylinders according to claim 1 drive beam pumping unit, which is characterized in that the servo electric cylinders
Driving device includes servo motor, ball-screw, outer tube and inner sleeve, and the ball-screw is fixed in the outer tube,
The outer tube is sheathed on outside the inner sleeve, and the servo motor is connect by connector with the upper end of the ball-screw；
The inner sleeve is gap-matched with the outer tube, is passed through between the upper port of the inner sleeve and the ball-screw
The connection of first fixation kit, the inner wall of first fixation kit and the outer tube are gap-matched.
3. a kind of servo electric cylinders according to claim 2 drive beam pumping unit, which is characterized in that described first is fixed
Component includes ball nut and ball nut mount, and the ball nut is set between the inner sleeve and the ball-screw, institute
Ball nut mount and the outer tube clearance fit are stated, the ball nut is fixed on the ball at the upper port of the inner sleeve
On nut seat.
4. a kind of servo electric cylinders according to claim 2 drive beam pumping unit, which is characterized in that the connector is
Shaft coupling, the servo motor drive ball-screw linkage to do rotation and lifting action by shaft coupling.
5. a kind of servo electric cylinders according to claim 4 drive beam pumping unit, which is characterized in that the shaft coupling with
It is additionally provided between the ball-screw and carries out fixed second in position for the junction to the ball-screw and the shaft coupling
Fixation kit.
6. a kind of servo electric cylinders according to claim 5 drive beam pumping unit, which is characterized in that described second is fixed
Component includes the bearing being fixed on the outer sleeve inner wall, and the bearing is fixedly connected by round nut with the shaft coupling.
7. a kind of servo electric cylinders according to claim 2 drive beam pumping unit, which is characterized in that the servo electric cylinders
The upper end of driving device is connect by first axle with the walking beam, lower end is connect by second hinge with the pedestal；
The servo motor is connect by attachment base with the outer tube；
Guide sleeve is equipped between the lower port of the outer tube and the inner sleeve pipe outer wall.
8. servo electric cylinders according to claim 3 drive beam pumping unit, which is characterized in that the outer tube is equipped with
Limiting device, the limiting device include the extreme higher position risen for limiting the ball nut relative to the outer tube
Position limit device and lower caging device for limiting the extreme lower position that the ball nut declines relative to the outer tube.
9. a kind of servo electric cylinders according to claim 8 drive beam pumping unit, which is characterized in that the limiting device
Select bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820971515.XU CN208578554U (en) | 2018-06-23 | 2018-06-23 | A kind of servo electric cylinders driving beam pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820971515.XU CN208578554U (en) | 2018-06-23 | 2018-06-23 | A kind of servo electric cylinders driving beam pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578554U true CN208578554U (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820971515.XU Active CN208578554U (en) | 2018-06-23 | 2018-06-23 | A kind of servo electric cylinders driving beam pumping unit |
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| CN (1) | CN208578554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630223A (en) * | 2018-06-23 | 2019-12-31 | 上海樱洛机电科技有限公司 | Servo electric cylinder driven beam-pumping unit |
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2018
- 2018-06-23 CN CN201820971515.XU patent/CN208578554U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630223A (en) * | 2018-06-23 | 2019-12-31 | 上海樱洛机电科技有限公司 | Servo electric cylinder driven beam-pumping unit |
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