CN109681415A - A kind of beam pumping unit balancing device - Google Patents
A kind of beam pumping unit balancing device Download PDFInfo
- Publication number
- CN109681415A CN109681415A CN201811607730.2A CN201811607730A CN109681415A CN 109681415 A CN109681415 A CN 109681415A CN 201811607730 A CN201811607730 A CN 201811607730A CN 109681415 A CN109681415 A CN 109681415A
- Authority
- CN
- China
- Prior art keywords
- walking beam
- pumping unit
- rack gear
- gear
- balancing device
- 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.)
- Pending
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 44
- 230000004584 weight gain Effects 0.000 claims description 5
- 235000019786 weight gain Nutrition 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 2
- 238000009966 trimming Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 241001023788 Cyttus traversi Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/14—Counterbalancing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
- E21B43/127—Adaptations of walking-beam pump systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of beam pumping unit balancing devices, it is related to oil recovery machiner technical field, it includes the motor being removably connected on walking beam, gear is coaxially fixedly installed on the output shaft of motor, wheel and rack engagement, rack gear are slidably connected along walking beam length direction, and rack gear is articulated with the middle part of walking beam far from one end of walking beam, one end of walking beam is articulated with one end of connecting rod, and the other end of connecting rod is articulated on walking beam.The present apparatus is that the trimming moment generated by walking beam makes balance of well pumping unit, walking beam is connected on walking beam in articulated manner, with the variation of rack gear length, walking beam not only can be mobile with rack gear, it can also be rotated centered on the point that rack gear is connect with walking beam simultaneously, solve the problems, such as that the apparatus structure of balancing in beam pumping unit in the prior art is complicated, counterbalance effect is poor.
Description
Technical field
The present invention relates to oil recovery machiner technical fields, more particularly to a kind of beam pumping unit balancing device.
Background technique
Beam pumping unit is that the main machine in domestic and international oil field takes out equipment, has the advantages that structure is simple, reliability and durability,
Occupy absolute leading position in mechanical oil recovery.Conventional type beam pumping unit is disadvantageous in that balance is uneven, the degree of balance is low,
Balanced ratio directly affects the energy consumption, stationarity and service life of pumping unit itself, and deteriorates the operating condition of sucker rod.Cause
This, design beam pumping unit device must rationally solve equilibrium problem.
In order to solve the problems, such as that beam pumping unit balances, two methods of mechanical balance and air-balance, machine are generallyd use
Tool balance can be divided into beam balance, crank balance and three kinds of plural equilibrium, and wherein it is flat to combine first two for plural equilibrium mode
The characteristics of weighing apparatus, mostly uses greatly this balance mode in Oil Field, and application range is wider.But plural equilibrium can not be fundamentally
It is big to solve the problems, such as that conventional type net torque fluctuates, so needing to add auxiliary balance mechanism on beam pumping unit.Mesh
Preceding auxiliary balance mechanism is mainly walking beam on pumping units tail portion setting balancing device, and motor, lead screw transmission assembly, balance weight are installed
On tail boom, by controlling direction of motor rotation, motor output is converted to the reciprocating motion of lead screw transmission assembly, this sets
Structure is complicated for the screw nut driven of meter, and processing cost is high, and load capacity is low, therefore driving torque counterbalance effect is limited.
Summary of the invention
For the above problem in the prior art, the present invention provides a kind of beam pumping unit balancing devices, solve
Balance device structure complexity, the problem of counterbalance effect difference of beam pumping unit in the prior art.
In order to achieve the above object of the invention, The technical solution adopted by the invention is as follows:
A kind of beam pumping unit balancing device is provided comprising the motor being removably connected on walking beam, motor it is defeated
Gear, wheel and rack engagement are coaxially fixedly installed on shaft, rack gear is slidably connected along walking beam length direction, and rack gear is far from trip
One end of beam is articulated with the middle part of walking beam, and one end of walking beam is articulated with one end of connecting rod, and the other end of connecting rod is articulated with trip
Liang Shang.
Further, weight gain block is fixedly connected on walking beam.Increase the gravity that walking beam is subject to by weight gain block, thus
Increase the torque that the present apparatus generates to make beam pumping unit keep balance.
Further, rack gear is slidably connected on the inner wall of walking beam.Rack gear is located on the inner wall of walking beam, then nibbling with rack gear
The gear of conjunction also is located in the inner cavity of walking beam, can effectively reduce abrasion of the sand and dust to gear and rack gear in environment, increases tooth
The working life of wheel, rack gear.
Further, the opposite side of rack gear addendum flank is provided with sliding slot, sliding slot and is removably connected to walking beam inner wall and section
For the I-shaped embedding connection of sliding rail.Section is that I-shaped sliding rail can effectively ensure that sliding slot is slided along sliding rail, avoids sliding slot
Being detached from sliding rail causes present apparatus failure even to bring danger.
Further, idler wheel is provided between sliding slot and sliding rail.By idler wheel by the sliding friction between sliding slot and sliding rail
Power becomes force of rolling friction, reduces resistance to sliding, improves transmission efficiency.
Further, idler wheel is symmetrical and is rotationally connected with the two sides of sliding slot.Symmetrically arranged idler wheel can make sliding slot with
Sliding rail is parallel always, ensure that the smoothness of rack gear sliding.
Further, motor is servo motor.Servo motor is closed-loop control motor, and control precision is high, can be according to trip
The unbalanced signal of girder-like oil pump accurately controls the moving distance of rack gear.
Further, gear key is connected on the output shaft of motor.It is keyed easy to process, fixation, can be limited
Movement of the gear relative to output shaft circumferential direction.
Further, gear is axially fixed on output shaft by shaft end ring and end bolt.The fixed form cost
It is low and fixation, reliable.
The invention has the benefit that the present apparatus is that the trimming moment generated by walking beam makes balance of well pumping unit, swing
Beam is connected on walking beam in articulated manner, and with the variation of rack gear length, walking beam not only can be mobile with rack gear, simultaneously also
It can be rotated centered on the point that rack gear is connect with walking beam, so that the distance and power of composition trimming moment change, increasing makes
The timeliness of balance of well pumping unit；And since the length of walking beam and connecting rod is fixed, the variation of rack gear length and the change of trimming moment
Change is a fixed corresponding relationship always, increases controllability.
Change the distance between walking beam and walking beam by gear band rack-driving, transmission efficiency is high, displacement control
Precisely, to reach the trimming moment that accurate control walking beam generates.Gear is driven by a motor rotation, passes through turning for control motor
Move to control the length of rack gear, the rotation of motor it is easily controllable and can according to the feedback of feedback device come real-time control motor,
To enable the present apparatus, come the real-time trimming moment for adjusting walking beam generation, pumping unit to be made to begin according to the amount of unbalance of pumping unit
In state eventually in balance, disequilibrium loss caused by equipment of pumping unit is reduced.
Rack-and-pinion is mounted in the inner cavity of walking beam in the present apparatus, so that the present apparatus occupies little space, is mounted with this
The Pumping Unit of device is compact, and present apparatus structure is simple, and easy to process, assembling can be suitable for the walking beam of various models
Formula pumping unit increases the versatility of the present apparatus, is more advantageous to popularization and application.
Detailed description of the invention
Fig. 1 is the axonometric drawing of beam pumping unit balancing device.
Fig. 2 is the front view of beam pumping unit balancing device.
Fig. 3 is the cross-sectional view in the direction A-A in Fig. 2.
Fig. 4 is operation schematic diagram of the beam pumping unit balancing device in pumping unit upstroke.
Fig. 5 is operation schematic diagram of the beam pumping unit balancing device in pumping unit down stroke.
Wherein, 1, walking beam；2, motor；21, output shaft；3, gear；4, rack gear；41, sliding slot；5, walking beam；51, it increases weight
Block；6, connecting rod；7, sliding rail；8, idler wheel；9, shaft end ring；10, end bolt.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in FIG. 1 to 3, which includes the motor 2 being removably connected on walking beam 1,
Motor 2 is servo motor, the preferred LCMT-55M02-180M35015 of model.The output shaft 21 of motor 2 is passed through to the side of walking beam 1
The side plate of plate, mounting plate and walking beam 1 on motor 2 passes through threaded fastener installation fixation.Flat key key is provided on output shaft 21
Slot, it is axial by shaft end ring 9 and end bolt 10 after gear 3 is set on output shaft 21 for being keyed gear 3
It is fixed on output shaft 21.A threaded hole, the model of end bolt 10 and the threaded hole are provided on the end face of output shaft 21
Corresponding, shaft end ring 9 and end bolt 10 are standard component, and type selecting and installation are the prior art, and details are not described herein again.
Gear 3 is engaged with the rack gear 4 for being located at 3 lower section of gear, and rack gear 4 is moved with the rotation of gear 3 along 1 length direction of walking beam
It is dynamic.The top surface of rack gear 4 is the flank of tooth, is machined on bottom surface through its length and section is in the sliding slot 41 of gate, sliding slot 41 is the bottom of adjacent to
It is provided with those widened sections on face, is symmetrically rotatably connected in the idler wheel 8 of 41 inner wall two sides of sliding slot, along the length of rack gear 4 for accommodating
Direction can be spaced setting multiple groups idler wheel 8.Idler wheel 8 can be realized by the way of being set with rolling bearing on axis, be also possible to it
Its machinery field axis does not rotate, and the roller structure for the roller rotation being set on axis, axis is fixed on the inner wall of sliding slot 41.
It is mounted with the sliding slot 41 of idler wheel 8 and is removably connected on 1 bottom surface of walking beam and section to be the I-shaped embedding company of sliding rail 7
It connects.Being detachably connected for sliding rail 7 can be threaded fastener connection type, be also possible to snap connection mode or other abilities
The common detachable connection method in domain.Sliding rail 7 is detachably connected the in-site installation that can facilitate the present apparatus.
The one end of rack gear 4 far from walking beam 1 and the middle part of walking beam 5 are hinged, and the bottom end of walking beam 5 is fixedly connected with weight gain block
51.One end of the not set weight gain block 51 of walking beam 5 is articulated with one end of connecting rod 6, and the other end of connecting rod 6 is articulated with the top of walking beam 1
On face.Hinged place, which is all made of, fixes U-shaped hinged seat, and opposite movable part is located at the centre of U-shaped hinged seat, then passes through pivot
The mode connect of contacting is realized.Walking beam 5, connecting rod 6, the center line of rack gear 4 and walking beam 1 four in the longitudinal direction are located at same flat
In face.
As shown in figure 4, horse head discharges downwards sucker rod when pumping unit down stroke works, motor 2 drives gear 3 clockwise
Rotation, gear 3 are moved in parallel with carry-over bar 4 to one end close to walking beam 1, and walking beam 5 is under the pulling of rack gear 4 around itself and rack gear
4 hinge joint makees clockwise oscillation, and until sucker rod runs lower dead point position, rack gear 4 pushes walking beam 5 to reach limit on the left position
It sets, it is also minimum that pumping unit obtains trimming moment.
As shown in figure 5, horse head is lifted up sucker rod when pumping unit upstroke works, motor 2 is counterclockwise with moving gear 3
Rotation, gear 3 are moved in parallel with carry-over bar 4 to one end far from walking beam 1, and walking beam 5 is under the promotion of rack gear 4 around itself and rack gear
4 hinge joint makees counter-clockwise swing, and until sucker rod runs upper dead center position, rack gear 4 pushes walking beam 5 to reach limit on the right-right-hand limit position
It sets, 5 travel displacement of walking beam is maximum this moment, and it is also maximum that pumping unit obtains trimming moment.
By the reciprocally swinging of walking beam 5, change the trimming moment of walking beam 1, reduces reducer output shaft peak torque, change
Kind pumping unit negative torque phenomenon, to reduce energy consumption output.
Claims (9)
1. a kind of beam pumping unit balancing device, which is characterized in that including the motor (2) being fixed on walking beam (1), the electricity
It is coaxially fixedly installed with gear (3) on the output shaft (21) of machine (2), the gear (3) is engaged with rack gear (4), the rack gear (4)
Along the walking beam (1), length direction is slidably connected, and the rack gear (4) is articulated with walking beam (5) far from the one end of the walking beam (1)
Middle part, one end of the walking beam (5) is articulated with one end of connecting rod (6), and the other end of the connecting rod (6) is articulated with the trip
On beam (1).
2. beam pumping unit balancing device according to claim 1, which is characterized in that fixed on the walking beam (5)
It is connected with weight gain block (51).
3. beam pumping unit balancing device according to claim 1, which is characterized in that the rack gear (4) is slidably connected
In on the inner wall of the walking beam (1).
4. beam pumping unit balancing device according to claim 1, which is characterized in that rack gear (4) addendum flank
Opposite side is provided with sliding slot (41), and the sliding slot (41) is I-shaped with the walking beam (1) inner wall and section is removably connected to
Sliding rail (7) embedding connection.
5. beam pumping unit balancing device according to claim 4, which is characterized in that the sliding slot (41) and sliding rail
(7) idler wheel (8) are provided between.
6. beam pumping unit balancing device according to claim 5, which is characterized in that the idler wheel (8) is symmetrical and can
It is rotationally connected with the two sides of the sliding rail (7).
7. beam pumping unit balancing device according to claim 1, which is characterized in that the motor (2) is servo electricity
Machine.
8. beam pumping unit balancing device according to claim 1, which is characterized in that the gear (3) key connection in
On the output shaft (21) of the motor (2).
9. beam pumping unit balancing device according to claim 1, which is characterized in that the gear (3) passes through shaft end
Retaining ring (9) and end bolt (10) are axially fixed on the output shaft (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607730.2A CN109681415A (en) | 2018-12-27 | 2018-12-27 | A kind of beam pumping unit balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607730.2A CN109681415A (en) | 2018-12-27 | 2018-12-27 | A kind of beam pumping unit balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109681415A true CN109681415A (en) | 2019-04-26 |
Family
ID=66189929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811607730.2A Pending CN109681415A (en) | 2018-12-27 | 2018-12-27 | A kind of beam pumping unit balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681415A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017263A (en) * | 2019-05-21 | 2019-07-16 | 陈志国 | A kind of pumping unit counter weight device pendulum type |
| CN111502601A (en) * | 2020-04-21 | 2020-08-07 | 天津市飞奥达风能设备有限公司 | Counterweight device for oil pumping unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321837A (en) * | 1979-09-10 | 1982-03-30 | Grigsby Roy E | Auxiliary counter balance for well pump |
| CN1683749A (en) * | 2005-03-14 | 2005-10-19 | 姜成华 | Adjustable variable moment type slide beam balance method for oil pumping unit |
| CN2913676Y (en) * | 2006-06-06 | 2007-06-20 | 新疆石油管理局机械制造总公司 | Automatic torque-change pumping unit |
| CN201391285Y (en) * | 2009-04-22 | 2010-01-27 | 濮阳市双发实业有限责任公司 | Outer cycloidal walking-beam type oil pumping unit |
| CN104440129A (en) * | 2014-11-27 | 2015-03-25 | 常州矩阵精密机械有限公司 | Machine tool guide rail |
| CN207827222U (en) * | 2017-12-26 | 2018-09-07 | 山东卓俊实业有限公司 | A kind of powder conveying apparatus for producing latex powder |
| US10107282B1 (en) * | 2016-10-02 | 2018-10-23 | George R Dreher | Articulated reciprocating counterweight |
-
2018
- 2018-12-27 CN CN201811607730.2A patent/CN109681415A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321837A (en) * | 1979-09-10 | 1982-03-30 | Grigsby Roy E | Auxiliary counter balance for well pump |
| CN1683749A (en) * | 2005-03-14 | 2005-10-19 | 姜成华 | Adjustable variable moment type slide beam balance method for oil pumping unit |
| CN2913676Y (en) * | 2006-06-06 | 2007-06-20 | 新疆石油管理局机械制造总公司 | Automatic torque-change pumping unit |
| CN201391285Y (en) * | 2009-04-22 | 2010-01-27 | 濮阳市双发实业有限责任公司 | Outer cycloidal walking-beam type oil pumping unit |
| CN104440129A (en) * | 2014-11-27 | 2015-03-25 | 常州矩阵精密机械有限公司 | Machine tool guide rail |
| US10107282B1 (en) * | 2016-10-02 | 2018-10-23 | George R Dreher | Articulated reciprocating counterweight |
| CN207827222U (en) * | 2017-12-26 | 2018-09-07 | 山东卓俊实业有限公司 | A kind of powder conveying apparatus for producing latex powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017263A (en) * | 2019-05-21 | 2019-07-16 | 陈志国 | A kind of pumping unit counter weight device pendulum type |
| CN111502601A (en) * | 2020-04-21 | 2020-08-07 | 天津市飞奥达风能设备有限公司 | Counterweight device for oil pumping unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190426 |