CN207245683U - Pumping unit and its balance adjustment crossbeam assembly - Google Patents
Pumping unit and its balance adjustment crossbeam assembly Download PDFInfo
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- CN207245683U CN207245683U CN201721104450.0U CN201721104450U CN207245683U CN 207245683 U CN207245683 U CN 207245683U CN 201721104450 U CN201721104450 U CN 201721104450U CN 207245683 U CN207245683 U CN 207245683U
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- walking
- balance
- balance adjustment
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Abstract
It the utility model is related to a kind of pumping unit and its balance adjustment crossbeam assembly.Pumping unit, including stent and it is hingedly connected to the walking beam of cradle top, the front end of walking beam is horse head installation end, the rear end of the walking beam is provided with balance adjustment crossbeam assembly, the balance adjustment crossbeam assembly includes the balance adjustment crossbeam to overhang backward, walking-beam counterweight is movably equipped with by guide rail on the balance adjustment crossbeam, pumping unit is at work, the balance of walking beam is adjusted by the walking-beam counterweight on balance adjustment crossbeam, solves the problems, such as pumping unit high energy consumption caused by balance weight is set on crank.
Description
Technical field
It the utility model is related to a kind of pumping unit and its balance adjustment crossbeam assembly.
Background technology
Pumping unit is the ground driving equipment of oil field rod pumping system, is commonly called as " kowtowing machine ".The widely applied biography in oil field
System pumping unit is generally beam pumping unit, and this pumping unit includes base assembly, motor assembly and motor control cabinet, crank
Assembly, walking beam assembly, bracket assembly, brake assembly etc..Wherein, crank assembly is the main portion for ensureing beam pumping unit balance
Part.
Chinese invention patent application such as Application No. 201710118055.6 discloses a kind of pumping unit, which is exactly
A kind of balance that pumping unit is adjusted by crank assembly.The crank assembly of this pumping unit is by crank, balance weight, latch segment etc.
Component forms, for balancing the moment of torsion that polished rod load produces retarder.Two cranks are symmetrically fixed on deceleration by clamping screw
On the output shaft of device, reducer output shaft is connected by wedge key with crank, transmits moment of torsion.Lead the upper and lower part of crank
Groove, balance weight are fixed on crank both sides by latch segment, clamping screw.Beam pumping unit is in whole working cycles internal loading
It is non-uniform, and the acceleration of point suspension movement and velocity variations aggravate this inhomogeneities, and adjustment balance weight is on crank
Position, eliminate as much as idle work, make the load variations of motor, reduction box uniform, be to solve the problems, such as balance of well pumping unit at present
Main means.The position of balance weight is adjusted, is that crank is placed in upright position, balance weight is hung with crane, is unclamped fixed flat
The bolt of weighing apparatus block, lays down latch segment, walking-beam counterweight to required position, makes pumping unit complete machine be in equilibrium state.
There are following defect for the balance mode of this beam pumping unit：（1）In the balance mode, crank is symmetrically mounted on
On reducer output shaft, balance weight is fixed on crank both sides by latch segment, clamping screw, complicated.Adjustment, that is, adjust
Save the position of balance weight opposing cranks.Since the quality of every piece of balance weight is more than 1 ton, it is necessary to stop pumping during adjustment
Machine run, by crane operation, work efficiency is low, labor intensity is big, it is of high cost, security incident easily occurs.（2）Pumping unit exists
In upper and lower stroke procedure, crank moves in a circle with balance weight, is influenced by stress alternation, causes walking beam assembly force unbalance,
Pumping unit motor acting in upper and lower stroke procedure need to be consistent by adjusting the position of balance weight on crank.Crank
With balance weight integral installation on reducer output shaft so that energy consumption greatly increases.Particularly in down stroke, retarder is not only
Overcome unbalanced weight before and after walking beam, also to drive the own wt of crank and balance weight, energy consumption is high.
Utility model content
The purpose of this utility model is to provide a kind of pumping unit, to solve to set balance weight to carry out balance beam on crank
Load when caused by pumping unit high energy consumption the problem of；Meanwhile the utility model also provides the balance adjustment horizontal stroke of above-mentioned pumping unit
Beam assembly.
To achieve the above object, the pumping unit of the utility model adopts the following technical scheme that：
The technical solution 1 of pumping unit：Pumping unit, including stent and the walking beam for being hingedly connected to cradle top, walking beam
Front end is horse head installation end, and the rear end of the walking beam is provided with balance adjustment crossbeam assembly, the balance adjustment crossbeam assembly bag
Include the balance adjustment crossbeam to overhang backward, walking-beam counterweight be movably equipped with by guide rail on the balance adjustment crossbeam,
Pumping unit at work, the balance of walking beam is adjusted by the walking-beam counterweight on balance adjustment crossbeam, is solved on crank
Caused by balance weight is set the problem of pumping unit high energy consumption.
The technical solution 2 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The walking beam
Balance weight is for being moved to balance adjustment crossbeam relevant position according to beam rating and being consolidated when being moved into place by connector
The stable equilibrium block being scheduled on balance adjustment crossbeam, the position of stable equilibrium block make the flat of walking beam according to the load adjustment of walking beam
Weighing apparatus adjusts more accurate.
The technical solution 3 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The balance
Adjust crossbeam and be equipped with indicating graduation along guide rail extension, for indicating stable equilibrium block position, easy to stable equilibrium block
Installation.
The technical solution 4 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The balance
Adjust and the scale parallel with the guide rail is installed on crossbeam, the scale on the scale forms the position instruction scale, knot
Structure is simple, easy for installation.
The technical solution 5 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The walking beam
Balance weight is to move back and forth the mobile balanced block being assemblied on the guide rail, the shifting balance along the longitudinal direction by self gravitation
Block its move back and forth stroke on have preceding limit position corresponding with the pumping unit in down stroke minimum point and with upper punching
The corresponding rear limit position of pumping unit of journey peak, when walking beam is in action, mobile balanced block is reciprocal on balance adjustment crossbeam
Mobile, so that the load at walking beam both ends is adjusted, consumed energy is not required in mobile balanced block during moving, and adjusts
Perfect square is just.
The technical solution 6 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The guide rail
Rear and front end be equipped with for the position limiting structure spacing to walking-beam counterweight, realize walking-beam counterweight on balanced adjustment crossbeam
It is spacing.
The technical solution 7 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The guide rail
Be equipped between walking beam make the center of gravity of walking-beam counterweight when walking beam is horizontal positioned at guide rail center position folder
Angle.
The technical solution 8 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The oil pumping
Machine further includes base, is provided with rear side of the base for accepting balance adjustment crossbeam in the load failure of pumping unit with right
Buffer unit of the balance adjustment crossbeam into row buffering.
The technical solution 9 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The buffering
Device includes being installed in the cylindrical spring on base and the stressed plate installed in cylindrical spring upper end.
The technical solution 10 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The pumping unit
Walking beam driving motor is further included, the walking beam driving motor is magneto.
The technical solution 11 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The walking beam drives
Dynamic motor drives the walking beam by crank and connecting rod, and the crank is formed by shaped steel group welding.
The technical solution 12 of pumping unit, further improves on the basis of the technical solution 1 of pumping unit and obtains：The pumping unit
Brake assembly is further included, the brake assembly includes the brake hubs being installed on walking beam driving motor and connects with the brake hubs
The brake lever connect.
The balance of well pumping unit of the utility model adjusts crossbeam assembly and adopts the following technical scheme that：
Balance of well pumping unit adjusts the technical solution 1 of crossbeam assembly：Balance of well pumping unit adjusts crossbeam assembly, including balance adjustment
Crossbeam, the front end of the balance adjustment crossbeam are equipped with the mounting structure for being used for being connected with the walking beam of pumping unit, the balance adjustment
Crossbeam assembly includes the balance adjustment crossbeam to overhang backward, and trip is movably equipped with by guide rail on the balance adjustment crossbeam
Beam balance weight, pumping unit at work, the balance of walking beam are adjusted by the walking-beam counterweight on balance adjustment crossbeam, is solved
On crank set balance weight caused by pumping unit high energy consumption the problem of.
Balance of well pumping unit adjusts the technical solution 2 of crossbeam assembly, and the technical solution 1 of crossbeam assembly is adjusted in balance of well pumping unit
On the basis of further improve obtain：The walking-beam counterweight is corresponding for being moved to balance adjustment crossbeam according to beam rating
Position is simultaneously fixed on by connector the stable equilibrium block on balance adjustment crossbeam, the position of stable equilibrium block when being moved into place
According to the load adjustment of walking beam, make the balance adjustment of walking beam more accurate.
Balance of well pumping unit adjusts the technical solution 3 of crossbeam assembly, and the technical solution 1 of crossbeam assembly is adjusted in balance of well pumping unit
On the basis of further improve obtain：The balance adjustment crossbeam be equipped with along guide rail extension, for indicating stable equilibrium block
The indicating graduation of position, easy to the installation of stable equilibrium block.
Balance of well pumping unit adjusts the technical solution 4 of crossbeam assembly, and the technical solution 1 of crossbeam assembly is adjusted in balance of well pumping unit
On the basis of further improve obtain：The scale parallel with the guide rail, the scale are installed on the balance adjustment crossbeam
On scale form the position instruction scale, it is simple in structure, it is easy for installation.
Balance of well pumping unit adjusts the technical solution 5 of crossbeam assembly, and the technical solution 1 of crossbeam assembly is adjusted in balance of well pumping unit
On the basis of further improve obtain：The walking-beam counterweight is assemblied in institute to be moved back and forth along the longitudinal direction by self gravitation
The mobile balanced block on guide rail is stated, which moves back and forth on stroke at it has and the pumping in down stroke minimum point
The corresponding preceding limit position of oil machine and rear limit position corresponding with the pumping unit in upstroke peak, when walking beam is in action,
Mobile balanced block moves back and forth on balance adjustment crossbeam, so that the load at walking beam both ends is adjusted, mobile balanced block moves
Consumed energy is not required in dynamic process, and it is easy to adjust.
Balance of well pumping unit adjusts the technical solution 6 of crossbeam assembly, and the technical solution 1 of crossbeam assembly is adjusted in balance of well pumping unit
On the basis of further improve obtain：The rear and front end of the guide rail is equipped with for the spacing knot spacing to walking-beam counterweight
Structure, realizes that walking-beam counterweight is spacing on balanced adjustment crossbeam.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment 1 of the pumping unit of the utility model；
Fig. 2 is the structure diagram of the crank in Fig. 1；
Fig. 3 is the structure diagram of the balance adjustment crossbeam assembly in Fig. 1；
Fig. 4 is the energy-saving effect figure of the embodiment 1 of the pumping unit of the utility model；
Fig. 5 is the structure diagram of the embodiment 2 of the pumping unit of the utility model；
In attached drawing：1st, horse head；2nd, walking beam；3rd, balance adjustment crossbeam assembly；4th, connecting rod；5th, crank；6th, direct driving motor；7th, bullet
Spring buffer unit；8th, base assembly；9th, brake lever；10th, motor control cabinet；11st, brake hubs；12nd, brake hubs；13rd, bracket assembly；
15th, connector；17th, guide rod；18th, walking-beam counterweight；19th, scale；20th, balance adjustment crossbeam；51st, anchor ear；52nd, pin hole；71st, rubber
Blob of viscose.
Embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of the pumping unit of the utility model, as shown in Figures 1 to 4, pumping unit include base assembly 8, branch
Frame assembly 13 is installed in base assembly 8, and walking beam 2 is hingedly connected to the top of the stent of bracket assembly 13, and the front end of walking beam 2 is
1 installation end of horse head, the rear end of walking beam 2 are provided with the balance adjustment crossbeam 20 to overhang backward, also pass through on balance adjustment crossbeam 20
Guide rail guiding movement is equipped with walking-beam counterweight 18.
Crank 5 is the rectangular parallelepiped structure formed by the weldering of shaped steel group, and one end of crank 5 is equipped with the anchor ear with motor axis connection
51, it is fastened on by anchor ear 51 on motor shaft, the other end is the pin hole 52 being connected with connecting rod 4.Crank 5 is welded using shaped steel
Into the casting crank that instead of traditional pumping unit, cost-effective, simplified structure.
Balance adjustment crossbeam assembly 3 includes balance adjustment crossbeam 20, and balance adjustment crossbeam 20 is rectangular support body structure, puts down
The upper side that weighing apparatus adjusts crossbeam 20 is equipped with guide rail, and walking-beam counterweight 18 is assemblied in balance adjustment crossbeam by guide rail guiding movement
On 20.Guide rail on balance adjustment crossbeam includes the sliding slot and guide rod 17 being arranged on balance adjustment crossbeam, walking-beam counterweight
18 can be moved back and forth under gravity by guide rail on balance adjustment crossbeam.
Motor control cabinet 10 is installed in base assembly 8, and loading indicator, balance adjustment are provided with motor controlling cabinet
The balance adjustment crossbeam 20 of mechanism is equipped with scale 19, and scale 19 is equipped with scale, can intuitively, exactly by scale 19
Read position of the balance weight on balance adjustment crossbeam 20.The counterweight of walking-beam counterweight 18 and stable equilibrium block is according to stent
13 both sides torque of assembly is set, and when horse head 1 is located at down stroke dead point, walking-beam counterweight 18 is moved to 13 direction of bracket assembly
The terminal of guide rail；When horse head 1 is located at up stroke dead point, walking-beam counterweight 18 is moved to guide rail to 13 opposite direction of bracket assembly
Terminal.The terminal at guide rail both ends is the preceding limit position of walking-beam counterweight and rear limit position, is also set up at the both ends of guide rail limited
Bit architecture is to realize walking-beam counterweight in the longitudinal direction spacing.
It is fixedly connected between the front end of the balance adjustment crossbeam 20 of balance adjustment mechanism and walking beam 2, angle therebetween
Meet when horse head 1 is in the minimum point of down stroke, balance adjustment crossbeam 20 is in horizontality, adjusts balance in this embodiment
Crossbeam is saved with walking beam in 180 ° of settings, can so make the weight of walking-beam counterweight 18 and stable equilibrium block minimum, make a whole set of structure
Adjusting mechanism weight saving, reduces energy consumption.
Load sensor is installed on horse head 1.Motor control cabinet 10 is equipped with the control module of direct driving motor 6, straight to drive electricity
Machine control module makes direct driving motor 6 realize electromagnetic brake when horse head 1 loses load, avoids pumping unit from turning over the generation of machine accident.Stop
Car assembly includes the brake hubs 11 being installed on 6 output shaft of direct driving motor and the brake lever 9 being connected with the brake hubs 11.
The tail end of the balance adjustment crossbeam 20 of balance adjustment mechanism on the base table top corresponding to it in being provided with high intensity
Spring bumper 7, spring bumper 7 include the cylindrical spring being installed on base, and the upper end of cylindrical spring is provided with use
In the stressed plate of power transmission, when suspending point loading failure occurs, the high intensity cylindrical spring of buffer unit can play buffering, absorb
The effect of energy, effectively avoids pumping unit from turning over the generation of machine accident.
The utility model is based on balance principle, and balance adjustment mechanism and walking beam 2 are combined as a whole, and adds and horse head 1
Hold the arm of force of corresponding walking beam 2, make the torque of 13 both sides of bracket assembly equal, walking-beam counterweight 18 on balanced adjustment crossbeam
Moved back and forth under the action of gravity, the balance of walking beam 2 is accurately adjusted, so realized and pumped by walking-beam counterweight 18
The adjusting that machine balances when working, walking-beam counterweight 18 drive its guiding movement on balance adjustment crossbeam 20 by self gravitation,
Easy to adjust, energy consumption can also substantially reduce；In addition, this pumping unit need not be in the power output shaft of the driving mechanism of pumping unit
Upper installation balance weight so that energy consumption when pumping unit works reduces, meanwhile, maintenance, safeguard safely, conveniently.Through field test, with
Existing beam-pumping unit is compared, and the utility model energy-saving effect is as shown in Figure 4：Curve A is the curent change of original pumping unit
Situation, curve B is the curent change situation of the pumping unit of the utility model, it can be seen that the pumping unit of the utility model from figure
Electric current during work is significantly less than electric current during existing pumping unit work, and energy-saving effect is obvious.
The embodiment 2 of the pumping unit of the utility model, as shown in figure 5, in the present embodiment, buffer unit is rubber block
71, rubber block 7 uses high-strength rubber, other are same as Example 1, repeat no more.
The embodiment 3 of the pumping unit of the utility model, in the present embodiment, walking-beam counterweight is relatively fixed by connector
On the guide rail of balance adjustment crossbeam, walking-beam counterweight is stable equilibrium block at this time, in use, the position of walking-beam counterweight according to
The load of walking beam is adjusted, and during adjustment, the indicating graduation on walking beam can intuitively show walking-beam counterweight
Position, so also solves the problems, such as pumping unit high energy consumption caused by setting balance weight on crank, other and 1 phase of embodiment
Together, repeat no more.
Scale, in the present embodiment, can also be set directly at balance and adjusted by the embodiment 4 of the pumping unit of the utility model
Save on crossbeam, other are same as Example 1, repeat no more.
The embodiment 5 of the pumping unit of the utility model, in the present embodiment, the driving motor of pumping unit can also use it
The motor of his type, while corresponding retarder is configured to drive pumping unit to work, other are same as Example 1, repeat no more.
The balance of well pumping unit of the utility model adjusts the embodiment of crossbeam assembly, and the balance of well pumping unit adjusts crossbeam assembly
It is identical that the structure of crossbeam assembly is adjusted with the balance of well pumping unit in the embodiment of above-mentioned pumping unit, is repeated no more.
Claims (19)
1. pumping unit, including stent and the walking beam for being hingedly connected to cradle top, the front end of walking beam is horse head installation end, it is special
Sign is：The rear end of the walking beam is provided with balance adjustment crossbeam assembly, and the balance adjustment crossbeam assembly includes overhanging backward
Balance adjustment crossbeam, walking-beam counterweight is movably equipped with by guide rail on the balance adjustment crossbeam.
2. pumping unit according to claim 1, it is characterised in that：The walking-beam counterweight is for being moved according to beam rating
Move to balance adjustment crossbeam relevant position and the fixation that is fixed on when being moved into place by connector on balance adjustment crossbeam and put down
Weigh block.
3. pumping unit according to claim 2, it is characterised in that：The balance adjustment crossbeam is equipped with to be extended along guide rail
, indicating graduation for indicating stable equilibrium block position.
4. pumping unit according to claim 3, it is characterised in that：It is provided with the balance adjustment crossbeam and the guide rail
Parallel scale, the scale on the scale form the position instruction scale.
5. pumping unit according to claim 1, it is characterised in that：The walking-beam counterweight is by before and after self gravitation edge
Direction, which moves back and forth, is assemblied in mobile balanced block on the guide rail, the mobile balanced block its move back and forth on stroke have with
The corresponding preceding limit position of pumping unit and rear pole corresponding with the pumping unit in upstroke peak in down stroke minimum point
It is spacing.
6. pumping unit according to claim 4, it is characterised in that：The rear and front end of the guide rail is equipped with for walking beam
The spacing position limiting structure of balance weight.
7. pumping unit according to claim 5, it is characterised in that：Being equipped between the guide rail and walking beam makes walking-beam counterweight
Center of gravity when walking beam is horizontal positioned at guide rail center position angle.
8. pumping unit according to claim 1, it is characterised in that：The pumping unit further includes base, after the base
Side is provided with for accepting balance adjustment crossbeam in the load failure of pumping unit to delay to balance adjustment crossbeam into row buffering
Flushing device.
9. pumping unit according to claim 8, it is characterised in that：The buffer unit includes the cylindricality being installed on base
Spring and the stressed plate installed in cylindrical spring upper end.
10. according to the pumping unit described in claim 1 ~ 9 any one, it is characterised in that：The pumping unit further includes walking beam drive
Dynamic motor, the walking beam driving motor is magneto.
11. pumping unit according to claim 10, it is characterised in that：The walking beam driving motor is driven by crank and connecting rod
The walking beam is moved, the crank is formed by shaped steel group welding.
12. pumping unit according to claim 10, it is characterised in that：The pumping unit further includes brake assembly, the brake
Car assembly includes the brake hubs being installed on walking beam driving motor and the brake lever being connected with the brake hubs.
13. balance of well pumping unit adjusts crossbeam assembly, it is characterised in that：Including balance adjustment crossbeam, the balance adjustment crossbeam
Front end is equipped with the mounting structure for being used for being connected with the walking beam of pumping unit, and the balance adjustment crossbeam assembly includes overhanging backward flat
Weigh and adjust crossbeam, walking-beam counterweight is movably equipped with by guide rail on the balance adjustment crossbeam.
14. balance of well pumping unit according to claim 13 adjusts crossbeam assembly, it is characterised in that：The walking-beam counterweight is
For being moved to balance adjustment crossbeam relevant position according to beam rating and being fixed on balance by connector when being moved into place
Adjust the stable equilibrium block on crossbeam.
15. balance of well pumping unit according to claim 14 adjusts crossbeam assembly, it is characterised in that：The balance adjustment crossbeam
It is equipped with indicating graduation along guide rail extension, for indicating stable equilibrium block position.
16. balance of well pumping unit according to claim 15 adjusts crossbeam assembly, it is characterised in that：The balance adjustment crossbeam
On the scale parallel with the guide rail be installed, the scale on the scale forms the position instruction scale.
17. balance of well pumping unit according to claim 13 adjusts crossbeam assembly, it is characterised in that：The walking-beam counterweight is
Move back and forth the mobile balanced block being assemblied on the guide rail along the longitudinal direction by self gravitation, the mobile balanced block is past at its
Have on multiple shift motion preceding limit position corresponding with the pumping unit in down stroke minimum point and with upstroke peak
Pumping unit it is corresponding after limit position.
18. balance of well pumping unit according to claim 17 adjusts crossbeam assembly, it is characterised in that：Front and rear the two of the guide rail
End is equipped with for the position limiting structure spacing to walking-beam counterweight.
19. balance of well pumping unit according to claim 18 adjusts crossbeam assembly, it is characterised in that：The guide rail and walking beam it
Between be equipped with make the center of gravity of walking-beam counterweight when walking beam is horizontal positioned at guide rail center position angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104450.0U CN207245683U (en) | 2017-08-31 | 2017-08-31 | Pumping unit and its balance adjustment crossbeam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104450.0U CN207245683U (en) | 2017-08-31 | 2017-08-31 | Pumping unit and its balance adjustment crossbeam assembly |
Publications (1)
| Publication Number | Publication Date |
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| CN207245683U true CN207245683U (en) | 2018-04-17 |
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ID=61883836
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| CN201721104450.0U Active CN207245683U (en) | 2017-08-31 | 2017-08-31 | Pumping unit and its balance adjustment crossbeam assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707607A (en) * | 2019-02-26 | 2019-05-03 | 上海樱洛机电科技有限公司 | A kind of adaptive counter weight construction of beam pumping unit |
| CN110529078A (en) * | 2018-05-25 | 2019-12-03 | 中国石油化工股份有限公司 | Pumping unit |
| CN116517510A (en) * | 2023-06-25 | 2023-08-01 | 胜利油田新海兴达实业集团有限责任公司 | Beam-pumping unit walking beam automatic optimizing intelligent balancing device and working method thereof |
| CN117231685A (en) * | 2023-11-10 | 2023-12-15 | 上海逸讯能源科技有限公司 | Wisdom oil recovery device |
-
2017
- 2017-08-31 CN CN201721104450.0U patent/CN207245683U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529078A (en) * | 2018-05-25 | 2019-12-03 | 中国石油化工股份有限公司 | Pumping unit |
| CN110529078B (en) * | 2018-05-25 | 2022-04-15 | 中国石油化工股份有限公司 | Oil pumping unit |
| CN109707607A (en) * | 2019-02-26 | 2019-05-03 | 上海樱洛机电科技有限公司 | A kind of adaptive counter weight construction of beam pumping unit |
| CN116517510A (en) * | 2023-06-25 | 2023-08-01 | 胜利油田新海兴达实业集团有限责任公司 | Beam-pumping unit walking beam automatic optimizing intelligent balancing device and working method thereof |
| CN117231685A (en) * | 2023-11-10 | 2023-12-15 | 上海逸讯能源科技有限公司 | Wisdom oil recovery device |
| CN117231685B (en) * | 2023-11-10 | 2024-01-23 | 上海逸讯能源科技有限公司 | Wisdom oil recovery device |
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