CN117823397A - Beam-pumping unit walking beam slides two counter weight devices - Google Patents
Beam-pumping unit walking beam slides two counter weight devices Download PDFInfo
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- CN117823397A CN117823397A CN202410253469.XA CN202410253469A CN117823397A CN 117823397 A CN117823397 A CN 117823397A CN 202410253469 A CN202410253469 A CN 202410253469A CN 117823397 A CN117823397 A CN 117823397A
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- 238000005086 pumping Methods 0.000 title claims abstract description 39
- 230000000670 limiting effect Effects 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 abstract description 2
- 241001023788 Cyttus traversi Species 0.000 description 35
- 239000003921 oil Substances 0.000 description 21
- 230000005484 gravity Effects 0.000 description 17
- 238000004804 winding Methods 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 8
- 239000010779 crude oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 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
- 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
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- 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)
- Manipulator (AREA)
Abstract
The utility model relates to a beam-pumping unit walking beam slides two counter weight devices belongs to oil well oil extraction machine technical field, including base, support frame, walking beam and rotation motor, the support frame is fixed to be set up on the base, the walking beam articulates on the support frame, rotation motor is used for driving the walking beam swing, the balancing weight has been articulated to the bottom of walking beam, the walking beam is in when the horizontality the balancing weight is located under the walking beam hinge point position, the walking beam is rotated along the hinge point position the balancing weight rotates and makes the balancing weight act on the direction of rotation of walking beam towards walking beam skew direction. The application has the effect of prolonging the service life of the rotating motor.
Description
Technical Field
The application relates to the technical field of oil extraction machines of oil wells, in particular to a beam-pumping unit walking beam sliding double-counterweight device.
Background
The beam-pumping unit is also called beam-pumping unit and beam-type crank balance pumping unit, and is called as kowtow machine. The beam pumping unit is one of the types of pumping units mainly used in oil fields at present, and mainly consists of four parts, namely a horsehead, a beam, a connecting rod, a crank mechanism, a reduction gearbox, power equipment and auxiliary equipment. When the oil pumping device works, the rotation of the motor is changed into the up-and-down motion of the horsehead through the gearbox and the crank connecting rod mechanism, and the horsehead drives the plunger of the underground oil pumping pump to do up-and-down motion through the polished rod and the sucker rod, so that crude oil in the well is continuously pumped out of the shaft.
The balance structure of the common beam pumping unit is as follows: the balance plate with a certain weight is arranged at the tail part of the walking beam, so that the walking beam is a simple balance mode and is suitable for light pumping units with the weight less than 3 tons. The crank is balanced, and the balance weight is arranged on the crank, so that the oil pumping machine is suitable for a heavy oil pumping machine. The composite balance uses the balance of the walking beam and the balance of the crank on a pumping unit at the same time. The pneumatic balance is realized, the energy is stored and released by utilizing the compressibility of the gas to achieve the purpose of balance, and the pneumatic balance can be used for heavy oil pumping units with the weight of more than 10 tons.
Currently, for example, patent document CN218265876U discloses a beam pumping unit, which comprises a base, a support bracket, a rotating bracket, a swinging member, a counterweight, a rotating connecting member, a connecting rod, a rotating connecting rod, a tourbillon, a motor bracket and a rotating motor; the top of the rotating bracket is rotationally connected with the swinging piece; one end of the swinging piece is connected with the counterweight; one end of the swinging piece far away from the counterweight is rotationally connected with the rotary connecting piece; the bottom of the rotary connecting piece is rotationally connected with the connecting rod; the mode of driving the counterweight to move in an arc shape through the rotating motor can be connected with the underground oil pipe at the tip end of the counterweight, so that the oil pumping effect is realized.
However, when the walking beam is driven by the rotating motor to rotate for pumping oil, the horsehead rises due to the fact that the density of crude oil is large, the load of the rotating motor is large, and meanwhile, when the horsehead descends, the resistance of crude oil to a piston is large, the load of the rotating motor is large, and the rotating motor is easy to damage.
Disclosure of Invention
In order to prolong the service life of a rotary motor, the application provides a beam-pumping unit walking beam sliding double-counterweight device.
The application provides a beam-pumping unit walking beam slides two counter weight devices adopts following technical scheme:
the utility model provides a beam-pumping unit walking beam slides two counter weight devices, includes base, support frame, walking beam and rotation motor, the support frame is fixed to be set up on the base, the walking beam articulates on support frame, rotation motor is used for driving the walking beam swing, the balancing weight has been hung to the bottom of walking beam, the walking beam is in when the horizontality the balancing weight is located the walking beam hinge point position under, the walking beam is along hinge point position when rotating the balancing weight rotates towards walking beam skew direction and make the balancing weight act on the direction of rotation of walking beam.
Optionally, the bottom of walking beam articulates has many connecting ropes, and is many connecting ropes is arranged along the articulated shaft symmetry of walking beam, the balancing weight is fixed to be set up at the free end of connecting the rope, the balancing weight is arranged along the articulated shaft symmetry of walking beam with the connecting end of connecting the rope, be provided with the locating part between walking beam and the balancing weight, the locating part drives connecting rope along the direction swing of perpendicular to walking beam articulated shaft.
Optionally, the locating part is including setting up the many telescopic links in the walking beam bottom, the telescopic link is unanimous with connecting rope quantity, the articulated axis of telescopic link is on a parallel with the articulated axis of walking beam, the balancing weight articulates the tip at the telescopic link, connecting rope is located the telescopic link.
Optionally, the walking beam diapire rotates and is provided with the receipts spool, the pivot axis of receipts spool is on a parallel with the articulated shaft of walking beam, connect the rope rolling on the receipts spool, be provided with the regulating part on the walking beam, the regulating part is used for driving the receipts spool rotation, in order to adjust the length of connecting the rope, make the balancing weight be in the horizontality, the top surface of balancing weight is provided with bubble level.
Optionally, the adjusting part comprises a worm wheel sleeved on the hinge shaft and a worm rotatably arranged on the walking beam, and the worm is meshed with the worm wheel.
Optionally, the bottom of walking beam articulates there is the gag lever post, the axis of rotation of gag lever post is on a parallel with the articulated axis of walking beam, the gag lever post is provided with a plurality ofly, gag lever post and telescopic link quantity one-to-one, the gag lever post is located the outside of both sides telescopic link, during the walking beam rotates, the telescopic link rotates and the butt is on the gag lever post towards walking beam direction of rotation, still be provided with the elastic component on the walking beam, the elastic component is used for driving the gag lever post to have the rotation trend towards the telescopic link direction.
Optionally, the bottom rotation of walking beam is provided with the installation axle, the gag lever post is fixed to be set up on the installation axle, the length direction of gag lever post is perpendicular to the length direction of installation axle, the elastic component is including the cover establish epaxial torsional spring of installation, the fixed setting in walking beam in one side of torsional spring, the fixed setting in articulated shaft in another side.
Optionally, be provided with the accepting piece on the walking beam, accepting piece is located the gag lever post and deviates from the one side of telescopic link, accepting piece is used for the walking beam to rotate when driving the telescopic link and rotates, the telescopic link drives the gag lever post and rotates towards accepting piece and make the gag lever post accept on accepting the piece.
Optionally, the balancing weight includes the fixed plate and sets up the counter weight board on the fixed plate, connecting rope free end sets up on the fixed plate, the counter weight board can dismantle the setting on the fixed plate.
Optionally, the lower surface of fixed plate is provided with the connecting rod, the length direction perpendicular to fixed plate of connecting rod, the mounting hole has been seted up at the center of counter weight board, the counter weight board passes through the mounting hole and slides and wear to establish on the connecting rod, a plurality of fixed orificess have been seted up on the connecting rod, a plurality of the fixed orificess is evenly arranged along the length direction of connecting rod, slide on the connecting rod and wear to be equipped with the dead lever, the length direction perpendicular to connecting rod's length direction of dead lever, the counter weight board is accepted on the dead lever.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the oil extraction machine works, the walking beam is driven to swing by the rotating motor, the walking beam swings to drive the horse head to move up and down so as to take underground crude oil, in the process, the balancing weight is driven to deviate towards the swinging direction of the walking beam, for example, when the walking beam drives the horse head to swing downwards, the balancing weight swings towards the direction of the horse head, and the gravity of the balancing weight acts on one side of the walking beam to deviate to the horse head, so that the gravity on one side of the horse head is increased, the piston in the oil pipe is driven to move downwards, the power of the rotating motor is reduced, the long-time high-power working condition of the rotating motor is reduced, and the service life of the rotating motor is prolonged;
2. when the walking beam drives the horsehead to move upwards to recover oil, the balancing weight deflects towards the other side of the walking beam, the gravity of the balancing weight acts on the other side of the walking beam, and the gravity of one side of the walking beam deviating from the horsehead is further increased, so that the walking beam is pressed downwards to drive the horsehead to move upwards, the power of the rotating motor is reduced in the process, the working condition of long-time high power of the rotating motor is reduced, and the service life of the rotating motor is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a beam-pumping unit walking beam sliding double-counterweight device according to an embodiment of the application;
fig. 2 is a schematic structural diagram of a counterweight in a beam-pumping unit sliding double counterweight device according to an embodiment of the application;
FIG. 3 is a cross-sectional view of a telescoping rod in a beam-pumping unit beam-sliding double counterweight apparatus according to an embodiment of the disclosure;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
fig. 5 is an enlarged schematic view of the portion B in fig. 4.
Reference numerals illustrate: 1. a base; 2. a support bracket; 3. a walking beam; 4. a rotating motor; 5. balancing weight; 51. a fixing plate; 52. a weight plate; 6. a connecting rope; 7. a telescopic rod; 8. a mounting plate; 9. a rotating shaft; 10. a winding shaft; 11. a worm wheel; 12. a worm; 13. a limit rod; 14. a mounting shaft; 15. a torsion spring; 16. a receiving block; 17. a connecting rod; 18. and a fixing hole.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-5.
The embodiment of the application discloses a beam-pumping unit walking beam sliding double-counterweight device. Referring to fig. 1 and 2, the beam-pumping unit beam-sliding double-counterweight device comprises a base 1, a support bracket 2, a beam 3 and a rotating motor 4, wherein the support bracket 2 is fixedly arranged on the base 1, the beam 3 is hinged on the support bracket 2, the rotating motor 4 is used for driving the beam 3 to swing, the rotating motor 4 acts on the beam 3 through a crank, further, the connecting end of the crank and the beam 3 is positioned at one side deviating from the horsehead, a balancing weight 5 is hung at the bottom of the beam 3, the balancing weight 5 is positioned under the hinging point of the beam 3 when the beam 3 is in a horizontal state, and the balancing weight 5 rotates towards the shifting direction of the beam 3 when the beam 3 rotates along the hinging point, so that the balancing weight 5 acts on the rotating direction of the beam 3.
When the oil extraction machine works, the crank is driven to rotate by the rotating motor 4, the crank rotates to drive the walking beam 3 to swing, the walking beam 3 swings to drive the horsehead to move up and down so as to take underground crude oil, in the process, when the walking beam 3 swings, the balancing weight 5 is driven to deviate towards the swinging direction of the walking beam 3, for example, when the walking beam 3 drives the horsehead to swing downwards, the balancing weight 5 swings towards the direction of the horsehead, the gravity of the balancing weight 5 acts on one side of the walking beam 3 to deviate towards the horsehead, so that the gravity on one side of the horsehead is increased, the piston in an oil pipe is driven to move downwards, the power of the rotating motor 4 is reduced, the long-time high-power working condition of the rotating motor 4 is reduced, and the service life of the rotating motor 4 is prolonged; when the walking beam 3 drives the horsehead to move upwards to recover oil, the balancing weight 5 deflects towards the other side of the walking beam 3, and the gravity of the balancing weight 5 acts on the other side of the walking beam 3, so that the gravity of one side of the walking beam 3 deviating from the horsehead is increased, the walking beam 3 is pressed downwards to drive the horsehead to move upwards, the power of the rotating motor 4 is reduced in the process, the working condition of long-time high power of the rotating motor 4 is reduced, and the service life of the rotating motor 4 is prolonged.
Referring to fig. 3 and 4, in the embodiment of the present application, a plurality of connecting ropes 6 are hung at the bottom of a walking beam 3, the connecting ropes 6 are steel wire ropes, the plurality of connecting ropes 6 are symmetrically arranged along the hinge axis of the walking beam 3, a balancing weight 5 is fixedly arranged at the free end of the connecting rope 6, the balancing weight 5 and the connecting end of the connecting rope 6 are symmetrically arranged along the hinge axis of the walking beam 3, and the connecting ropes 6 between the walking beam 3 and the balancing weight 5 are arranged in an inverted triangle manner; when the walking beam 3 drives the horsehead to move downwards, the balancing weight 5 moves towards the horsehead direction, and the included angle between the steel wire rope close to the horsehead side and the vertical direction is reduced, so that most of gravity of the balancing weight 5 acts on the walking beam 3 through the steel wire rope, and further the gravity of the horsehead side of the walking beam 3 is increased, and the downward movement of the piston along the oil pipe is facilitated; when the walking beam 3 drives the horsehead to move upwards, the balancing weight 5 deflects towards the connecting end of the crank and the walking beam 3, so that the gravity of the end of the walking beam 3 is increased, and the piston is pulled to move upwards in the oil pipe to extract crude oil; the steel wire rope has the advantages of sensitive deflection and high durability in use.
Referring to fig. 3 and 4, in order to ensure that the balancing weight 5 swings only in the vertical direction, a limiting piece is arranged between the walking beam 3 and the balancing weight 5, the limiting piece drives the connecting rope 6 to swing along the direction perpendicular to the hinging shaft of the walking beam 3, the limiting piece comprises a plurality of telescopic rods 7 arranged at the bottom of the walking beam 3, the telescopic rods 7 are consistent with the connecting ropes 6 in number, the hinging shaft of the telescopic rods 7 is parallel to the hinging shaft of the walking beam 3, the balancing weight 5 is hinged to the end of the telescopic rods 7, further, a mounting plate 8 is fixedly arranged at the bottom of the walking beam 3, a rotating shaft 9 is rotatably arranged on the mounting plate 8, the telescopic rods 7 are fixedly arranged on the rotating shaft 9, the length direction of the telescopic rods 7 is perpendicular to the length direction of the rotating shaft 9, the telescopic rods 7 comprise a plurality of sliding rods which are sleeved in a sliding manner, the sliding rods positioned at the head end are fixedly arranged on the rotating shaft 9, the balancing weight 5 is hinged to the end of the tail end sliding rods, and the connecting rope 6 is positioned in the telescopic rods 7. When the walking beam 3 swings, the walking beam 3 drives the balancing weight 5 to deflect towards one side, and when the balancing weight 5 deflects, the connecting rope 6 and the telescopic rod 7 are driven to swing, and under the action of the rotating shaft 9, the swinging direction of the telescopic rod 7 is limited, so that the swinging direction of the balancing weight 5 is limited, and the gravity of the balancing weight 5 is conveniently adjusted to act on the position of the walking beam 3.
Referring to fig. 3 and 4, after the connecting rope 6 hangs the balancing weight 5 for a long time, the length of the connecting rope 6 is easily increased to cause the balancing weight 5 to incline, when the balancing weight 5 inclines to cause the walking beam 3 to be horizontal, the gravity direction of the balancing weight 5 is not collinear with the hinging shaft, and the load of the rotating motor 4 is easily increased, therefore, in the embodiment of the application, the bottom wall of the walking beam 3 is rotatably provided with the winding shaft 10, the winding shaft 10 is positioned between the fixed plates 51 and right above the rotating shaft 9, the rotating axis of the winding shaft 10 is parallel to the hinging shaft of the walking beam 3, the connecting rope 6 slides through the rotating shaft 9 to wind on the winding shaft 10, the walking beam 3 is provided with an adjusting piece for driving the winding shaft 10 to rotate to adjust the length of the connecting rope 6 to enable the balancing weight 5 to be in a horizontal state, the adjusting piece comprises a worm wheel 11 sleeved on the hinging shaft and a worm 12 rotatably arranged on the walking beam 3, the worm 12 is meshed with the worm 11, and the top surface of the balancing weight 5 is provided with a bubble level; in the early stage of oil extraction of the oil extraction machine, the walking beam 3 is regulated to the horizontal direction, then the bubble level is observed, the worm 12 in the corresponding direction is rotated through the display direction of the bubble level, the worm 12 is rotated to drive the worm wheel 11 to rotate, the worm wheel 11 is rotated to drive the winding shaft 10 to rotate, and the winding shaft 10 is rotated to wind the connecting rope 6 to regulate the direction of the balancing weight 5, so that the balancing weight 5 is in the horizontal direction; after the above process, the winding shaft 10 is fixed under the action of the worm wheel 11 and the worm 12, and the balancing weight 5 is further fixed to the adjusted position.
Referring to fig. 3, fig. 4 and fig. 5, when walking beam 3 drives balancing weight 5 and swings, under the effect of inertia, when walking beam 3 counter direction swings, balancing weight 5 keeps the swing direction, lead to balancing weight 5 unable in time to change the swing direction, and then result in balancing weight 5 additionally to increase the load of rotating motor 4, therefore in this application embodiment, the bottom of walking beam 3 articulates there is gag lever post 13, gag lever post 13 is provided with a plurality ofly, gag lever post 13 and telescopic link 7 quantity one-to-one, gag lever post 13's axis of rotation is parallel to walking beam 3's articulated axis, gag lever post 13 is located the outside of both sides telescopic link 7, during walking beam 3 rotates, telescopic link 7 rotates towards walking beam 3 direction of rotation and the butt on gag lever post 13, still be provided with the elastic component on walking beam 3, the elastic component is used for driving gag lever post 13 to have the rotation trend towards telescopic link 7 direction, the bottom rotation of balancing weight 3 is provided with installation axle 14, gag lever post 13 is fixed to be set up on installation axle 14, the length direction perpendicular to installation axle 14's length direction, the elastic component is including the cover and establish 15 on installation axle 14, 15, one side of torsion spring 3 is fixed on the torsion spring 3, the limit of torsion spring is fixed on the walking beam 3, the limit of setting is compressed limit of the torsion spring is fixed on the limit of the rocking beam 3.
When the walking beam 3 drives the balancing weight 5 to swing, the balancing weight 5 drives the telescopic rod 7 to rotate and abut against the limiting rod 13, the telescopic rod 7 drives the limiting rod 13 to rotate, the limiting rod 13 rotates to compress the torsion spring 15, the torsion spring 15 accumulates potential energy, and the compression limit of the torsion spring 15 is smaller than the rotation limit of the walking beam 3, so when the walking beam 3 rotates to exceed the limit of the torsion spring 15, the limiting rod 13 fixes the telescopic rod 7 at the position, the influence of inertia of the balancing weight 5 on load distribution is reduced, the load of the rotating motor 4 is further reduced, and the service life of the rotating motor 4 is prolonged; further, when the walking beam 3 swings in the opposite direction, the torsion spring 15 releases accumulated potential energy to drive the limiting rod 13 to swing towards the other side, and further drive the telescopic rod 7 to swing towards the other side, so that the swinging direction of the balancing weight 5 is convenient to adjust.
Referring to fig. 3 and 4, after the walking beam 3 rotates beyond the limit of the torsion spring 15, the torsion spring 15 is easy to damage, meanwhile, the rotation angle of the torsion spring 15 to the limiting rod 13 is limited to be flexibly limited, so that the limiting effect on the limiting rod 13 is relatively general, therefore, in the implementation of the application, the walking beam 3 is fixedly provided with the bearing block 16, the bearing block 16 is positioned at one side of the limiting rod 13 away from the telescopic rod 7, and when the bearing block 16 is used for the walking beam 3 to rotate to drive the telescopic rod 7 to rotate, the telescopic rod 7 drives the limiting rod 13 to rotate towards the bearing block 16, so that the limiting rod 13 is borne on the bearing block 16; when the balancing weight 5 drives the telescopic rod 7 to compress the torsion spring 15, the limiting rod 13 rotates and is supported on the supporting block 16 so as to limit the rotation directions of the limiting rod 13 and the telescopic rod 7, so that the load of the torsion spring 15 is reduced, and the service life of the torsion spring 15 is prolonged.
Referring to fig. 3, in the embodiment of the present application, the weight 5 includes a fixed plate 51 and a weight plate 52 disposed on the fixed plate 51, the free end of the connecting rope 6 is disposed on the fixed plate 51 and the end sliding rod is hinged on the fixed plate 51, and the weight plate 52 is detachably disposed on the fixed plate 51; the weight plate 52 is detachably provided on the fixed plate 51, so that the weight plate 52 can be conveniently detached from the fixed plate 51, and the long-time load bearing time of the walking beam 3 is reduced.
Referring to fig. 3, in the implementation of the present application, the lower surface of the fixing plate 51 is provided with the connecting rod 17, the length direction of the connecting rod 17 is perpendicular to the fixing plate 51, the center of the weight plate 52 is provided with a mounting hole, the weight plate 52 is slidably arranged on the connecting rod 17 through the mounting hole, the plurality of fixing holes 18 are arranged on the connecting rod 17 uniformly along the length direction of the connecting rod 17, the connecting rod 17 is slidably arranged with a fixing rod, the length direction of the fixing rod is perpendicular to the length direction of the connecting rod 17, and the weight plate 52 is supported on the fixing rod. The weight plate 52 is mounted on the connecting rod 17, the fixed rod is inserted into the connecting rod 17, and the weight plate 52 is mounted on the fixed plate 51, so that the operation is simple and convenient; at the same time, it is convenient to mount a required number of weight plates 52 to the fixed plate 51.
The implementation principle of the beam-pumping unit walking beam sliding double-counterweight device provided by the embodiment of the application is as follows:
when the oil extraction machine works, the crank is driven to rotate by the rotating motor 4, the crank rotates to drive the walking beam 3 to swing, the walking beam 3 swings to drive the horsehead to move up and down so as to take underground crude oil, in the process, when the walking beam 3 swings, the balancing weight 5 is driven to deviate towards the swinging direction of the walking beam 3, for example, when the walking beam 3 drives the horsehead to swing downwards, the balancing weight 5 swings towards the direction of the horsehead, the gravity of the balancing weight 5 acts on one side of the walking beam 3 to deviate towards the horsehead, so that the gravity on one side of the horsehead is increased, the piston in an oil pipe is driven to move downwards, the power of the rotating motor 4 is reduced, the long-time high-power working condition of the rotating motor 4 is reduced, and the service life of the rotating motor 4 is prolonged; when the walking beam 3 drives the horsehead to move upwards to recover oil, the balancing weight 5 deflects towards the other side of the walking beam 3, and the gravity of the balancing weight 5 acts on the other side of the walking beam 3, so that the gravity of one side of the walking beam 3 deviating from the horsehead is increased, the walking beam 3 is pressed downwards to drive the horsehead to move upwards, the power of the rotating motor 4 is reduced in the process, the working condition of long-time high power of the rotating motor 4 is reduced, and the service life of the rotating motor 4 is prolonged.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The utility model provides a beam-pumping unit walking beam slides two counter weight devices which characterized in that: including base (1), support frame (2), walking beam (3) and rotation motor (4), support frame (2) are fixed to be set up on base (1), walking beam (3) are articulated on support frame (2), rotation motor (4) are used for driving walking beam (3) swing, balancing weight (5) have been articulated to the bottom of walking beam (3), walking beam (3) are in when the horizontality balancing weight (5) are located under walking beam (3) hinge point position, walking beam (3) are along hinge point position when rotating balancing weight (5) are rotated towards walking beam (3) skew direction and make balancing weight (5) act on the direction of rotation of walking beam (3).
2. The beam-pumping unit slide double-counterweight device according to claim 1, wherein: the walking beam is characterized in that a plurality of connecting ropes (6) are hung at the bottom of the walking beam (3), the connecting ropes (6) are symmetrically distributed along the hinge axis of the walking beam (3), the balancing weights (5) are fixedly arranged at the free ends of the connecting ropes (6), the connecting ends of the balancing weights (5) and the connecting ropes (6) are symmetrically distributed along the hinge axis of the walking beam (3), limiting pieces are arranged between the walking beam (3) and the balancing weights (5), and the limiting pieces drive the connecting ropes (6) to swing along the direction perpendicular to the hinge axis of the walking beam (3).
3. The beam-pumping unit slide double-counterweight device according to claim 2, wherein: the limiting piece comprises a plurality of telescopic rods (7) arranged at the bottom of the walking beam (3), the number of the telescopic rods (7) is identical to that of the connecting ropes (6), the hinge axis of each telescopic rod (7) is parallel to that of the walking beam (3), the balancing weights (5) are hinged to the end parts of the telescopic rods (7), and the connecting ropes (6) are located in the telescopic rods (7).
4. The beam-pumping unit slide double-counterweight device according to claim 2, wherein: the walking beam is characterized in that a rolling shaft (10) is arranged on the bottom wall of the walking beam (3) in a rotating mode, the rotating axis of the rolling shaft (10) is parallel to the hinge shaft of the walking beam (3), the connecting rope (6) is wound on the rolling shaft (10), an adjusting piece is arranged on the walking beam (3) and used for driving the rolling shaft (10) to rotate so as to adjust the length of the connecting rope (6) and enable the balancing weight (5) to be in a horizontal state, and a bubble level is arranged on the top surface of the balancing weight (5).
5. The beam-pumping unit beam-sliding double-counterweight device according to claim 4, wherein: the adjusting piece comprises a worm wheel (11) sleeved on the hinge shaft and a worm (12) rotatably arranged on the walking beam (3), and the worm (12) is meshed with the worm wheel (11).
6. A beam-pumping unit beam-sliding double counterweight apparatus according to claim 3, wherein: the walking beam is characterized in that a limiting rod (13) is hinged to the bottom of the walking beam (3), the rotation axis of the limiting rod (13) is parallel to the hinge axis of the walking beam (3), the limiting rods (13) are arranged in a plurality of mode, the limiting rods (13) are in one-to-one correspondence with the number of the telescopic rods (7), the limiting rods (13) are located on the outer sides of the telescopic rods (7) on two sides, when the walking beam (3) rotates, the telescopic rods (7) rotate towards the rotation direction of the walking beam (3) and are abutted to the limiting rods (13), and elastic pieces are further arranged on the walking beam (3) and used for driving the limiting rods (13) to have rotation trends towards the direction of the telescopic rods (7).
7. The beam-pumping unit beam-sliding double-counterweight device according to claim 6, wherein: the walking beam is characterized in that an installation shaft (14) is arranged at the bottom of the walking beam (3) in a rotating mode, the limiting rod (13) is fixedly arranged on the installation shaft (14), the length direction of the limiting rod (13) is perpendicular to the length direction of the installation shaft (14), the elastic piece comprises a torsion spring (15) sleeved on the installation shaft (14), one side of the torsion spring (15) is fixedly arranged on the walking beam (3), and the other side of the torsion spring is fixedly arranged on the hinge shaft.
8. A beam-pumping unit beam-sliding double counterweight apparatus according to claim 3, wherein: be provided with on walking beam (3) and accept piece (16), accept piece (16) and be located one side that gag lever post (13) deviate from telescopic link (7), accept piece (16) are used for walking beam (3) rotation to drive when telescopic link (7) rotate, telescopic link (7) drive gag lever post (13) towards accepting piece (16) rotation and make gag lever post (13) accept on accepting piece (16).
9. The beam-pumping unit slide double-counterweight device according to claim 2, wherein: the balancing weight (5) comprises a fixed plate (51) and a balancing weight plate (52) arranged on the fixed plate (51), the free end of the connecting rope (6) is arranged on the fixed plate (51), and the balancing weight plate (52) is detachably arranged on the fixed plate (51).
10. The beam-pumping unit beam-sliding double-counterweight device according to claim 9, wherein: the utility model discloses a connecting rod, including fixed plate (51) and counter weight board (52), fixed plate (51) lower surface is provided with connecting rod (17), the length direction perpendicular to fixed plate (51) of connecting rod (17), the mounting hole has been seted up at the center of counter weight board (52), counter weight board (52) are worn to establish on connecting rod (17) through the mounting hole slip, a plurality of fixed orifices (18) have been seted up on connecting rod (17), a plurality of fixed orifices (18) are evenly arranged along the length direction of connecting rod (17), the dead lever has been worn to slide on connecting rod (17), the length direction of dead lever perpendicular to connecting rod (17) length direction, counter weight board (52) accept on the dead lever.
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| CN202410253469.XA CN117823397B (en) | 2024-03-06 | 2024-03-06 | Beam-pumping unit walking beam slides two counter weight devices |
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| CN202410253469.XA CN117823397B (en) | 2024-03-06 | 2024-03-06 | Beam-pumping unit walking beam slides two counter weight devices |
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