CN219795224U

CN219795224U - Automatic balance-adjusting vertical pumping unit

Info

Publication number: CN219795224U
Application number: CN202322234878.9U
Authority: CN
Inventors: 王付全; 高志炜
Original assignee: Karamay City Shengqi Drilling Equipment Co ltd
Current assignee: Karamay City Shengqi Drilling Equipment Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2023-10-03
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses an automatic balance-adjusting vertical pumping unit, which relates to the technical field of vertical pumping units, in particular to an automatic balance-adjusting vertical pumping unit which is arranged on a foundation and is used for oil extraction operation, and comprises a base arranged on the foundation and a frame body, wherein the frame body is arranged on the base; the load sensors in the control part detect the load information of the belts on the two sides of the roller, the control board is used for judging whether the weight of the weight box needs to be increased or decreased according to the load information, and when the weight box needs to be increased, the control board controls the spiral lifter to increase the number of steel balls for the weight box, so that the weight of the weight box is increased; when the weight box needs to be reduced in weight, the control board drives the weight box to descend to a low point through the traction motor, and part of steel balls in the weight box roll to be separated from the weight box, so that the weight reduction of the weight box is realized; therefore, the automatic balance adjusting effect of the vertical pumping unit is achieved, the purpose of improving the working efficiency of the vertical pumping unit is achieved, and the labor intensity of workers is greatly reduced.

Description

Automatic balance-adjusting vertical pumping unit

Technical Field

The utility model relates to the technical field of vertical pumping units, in particular to an automatic balance-adjusting vertical pumping unit.

Background

The existing pumping units for petroleum extraction are mainly divided into two main types, namely a beam pumping unit and a beam-free pumping unit (vertical pumping unit). The balancing weight corresponding to the underground oil reservoir and the underground working condition is regulated by the oil pumping unit during operation, so that the purposes of reducing power consumption and saving energy are achieved. (the depth of the underground hanging pump is different, the weight of the wellhead end is influenced by different materials of the polish rod and the density of oil, the front end and the rear end are balanced or the weight of the front end and the rear end is almost the same after the corresponding weight is required to be configured on the pumping unit, so that work can be small and energy consumption can be low), but the existing unbalanced adjustment method is realized by loading and unloading the weights basically manually, and time and labor are wasted.

In published chinese patent application, publication No.: CN217841960U, patent name: a balance box and a vertical pumping unit which are convenient for adjusting weight, wherein the balance of the vertical pumping unit is realized by increasing or decreasing the balance weight of the balance box through adding or subtracting the balance weight in the balance box; however, the prior art still needs to be manually operated, and the balance weight is added or reduced in the balance box manually, so that the balance of the vertical pumping unit is realized, the automation level is low, the working efficiency is low, and the labor intensity of workers is high.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an automatic balance-adjusting vertical pumping unit, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the automatic balance vertical oil pumping machine comprises a base and a frame body, wherein the base is arranged on the base, the frame body is arranged on the base, a weight box is arranged in the frame body, a plurality of steel balls are arranged in the weight box, a spiral lifter is arranged on the base, and the spiral lifter is used for increasing or reducing the number of the steel balls in the weight box; the control component comprises an electric cabinet, a load sensor and a position sensor, wherein the position sensor is arranged at the bottom of the frame body and used for detecting the position of the weight box, the load sensor is arranged at the upper part of the frame body and used for detecting the weight of the weight bodies on two sides of the belt, and the control component is electrically connected with the spiral lifter and used for controlling the start and stop of the spiral lifter.

Optionally, be provided with drive unit and lifting part on the support body, drive unit is used for driving the weight box and realizes reciprocating in the support body, lifting part is used for hanging the oil recovery equipment that is located the well head.

Optionally, the drive unit includes traction motor, lower sprocket seat, lower sprocket, last sprocket seat, last sprocket and chain respectively, traction motor pass through lower sprocket seat with lower sprocket transmission is connected, go up the sprocket with last sprocket seat rotates to be connected, the chain twines on last sprocket and lower sprocket, the upper portion fixed mounting of chain and weight box.

Optionally, the lifting part respectively comprises an upper platform, a roller, a sling, a guide wheel, a belt and a polished rod, wherein the upper platform is fixedly arranged at the upper end of the frame body, the roller and the guide wheel are arranged on the upper platform, the load sensor is arranged on the upper platform and is close to the roller, the lower end of the sling is fixedly connected with the upper part of the weight box, the upper end of the sling is fixedly connected with the belt, the belt bypasses the upper surfaces of the roller and the guide wheel, one end of the belt, far away from the sling, is fixedly provided with a belt connector, the lower part of the belt connector is fixedly provided with a polished rod clamping and suspending device, and the polished rod clamping and suspending device is fixedly connected with the upper end of the polished rod.

Optionally, an inclined plate is arranged on the inner bottom wall of the weight box, and a feed inlet and a discharge outlet are respectively arranged on one side wall of the weight box.

Optionally, the screw elevator includes servo motor, collection case, barrel, helical blade and axostylus axostyle respectively, barrel fixed mounting is on the base, collection case fixed mounting is on a lateral wall of barrel and with the inside intercommunication of barrel, the axostylus axostyle is vertically installed in the barrel and is connected with the barrel rotation, helical blade cover is established at the lateral wall of axostylus axostyle and rather than fixed connection, servo motor fixed mounting barrel's top, servo motor's drive shaft is connected with the axostylus axostyle transmission.

Optionally, the spiral elevator still includes the frid of unloading and goes up the flitch, the frid of unloading is slope form and fixed mounting on the collection case, go up the flitch and be slope form and fixed mounting in the upper portion of barrel, barrel internal cavity and last flitch intercommunication.

Optionally, a control board is arranged in the electric cabinet, and the control board is electrically connected with the load sensor, the position sensor, the servo motor and the traction motor respectively.

(III) beneficial effects

The utility model provides an automatic balance-adjusting vertical pumping unit, which has the following beneficial effects:

according to the automatic balance vertical pumping unit, the control part, the weight box and the spiral lifter are matched, so that the automatic balance vertical pumping unit has an automatic balance adjusting effect, the load sensors in the control part detect the load information of the belts on the two sides of the roller, the control board is used for judging whether the weight box needs to be increased or decreased according to the load information, and when the weight box needs to be increased, the control board controls the spiral lifter to increase the number of steel balls for the weight box, so that the weight of the weight box is increased; when the weight box needs to be reduced in weight, the control board drives the weight box to descend to a low point through the traction motor, and part of steel balls in the weight box roll to be separated from the weight box, so that the weight reduction of the weight box is realized; therefore, the automatic balance adjusting effect of the vertical pumping unit is achieved, the purpose of improving the working efficiency of the vertical pumping unit is achieved, and the labor intensity of workers is greatly reduced.

Drawings

FIG. 1 is a schematic diagram of the front view of an automatically-balanced vertical pumping unit according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a weight box of an automatic-leveling vertical pumping unit according to the present utility model;

FIG. 3 is a schematic perspective view of a helical blade of an automatic-leveling vertical pumping unit according to the present utility model;

FIG. 4 is a schematic diagram of the front view of a barrel of an automatic balance-adjusting vertical pumping unit according to the present utility model;

FIG. 5 is a schematic diagram of a right-hand view of a weight box of an automatic-leveling vertical pumping unit according to the present utility model;

FIG. 6 is an enlarged schematic view of the structure of FIG. 1A;

fig. 7 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: 1. a weight box; 101. a feed inlet; 102. a discharge port; 103. an inclined plate; 2. a spiral elevator; 201. a helical blade; 202. a servo motor; 203. a material collecting box; 204. a discharge chute plate; 205. a feeding groove plate; 206. a shaft lever; 207. a cylinder; 3. a lower sprocket; 4. a lower sprocket base; 5. a traction motor; 7. a position sensor; 8. an electric control box; 9. a base; 10. a foundation; 11. a frame body; 12. an upper sprocket base; 13. an upper sprocket; 14. a top platform; 15. a load sensor; 16. a roller; 17. a guide wheel; 18. a belt; 19. a belt connector; 20. the polished rod clamps the rope hanger; 21. a polish rod; 22. oil extraction equipment; 23. a steel ball; 24. a sling; 25. a chain.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 7, the present utility model provides the following technical solutions: an automatic balance vertical pumping unit is arranged on a foundation 10 (a ground foundation below the vertical pumping unit) and used for oil extraction operation, and comprises a base 9 arranged on the foundation 10 and a frame 11, wherein the frame 11 is made of a steel framework, the frame 11 is arranged on the base 9, a weight box 1 is arranged in the frame 11, a plurality of steel balls 23 are arranged in the weight box 1, a spiral lifter 2 is arranged on the base 9, and the spiral lifter 2 is used for increasing or reducing the number of the steel balls 23 in the weight box 1. The automatic balance vertical pumping unit further comprises a control part, wherein the control part comprises an electric cabinet 8, a load sensor 15 and a position sensor 7, the position sensor 7 is arranged at the bottom of the frame 11 and used for detecting the position of the weight box 1, the load sensor 15 is arranged at the upper part of the frame 11 and used for detecting the weight of the weights at two sides of the belt 18, and the control part is electrically connected with the spiral lifting machine 2 and used for controlling the start and stop of the spiral lifting machine 2.

Specifically, the frame 11 is provided with a driving part for driving the weight box 1 to move up and down in the frame 11, and a lifting part for hanging the oil extraction equipment 22 located at the wellhead.

The oil extraction device 22 is a prior art device, and will not be described in detail. The weight box 1 is hoisted with the oil extraction equipment 22 by a hoisting component, and the hoisting component is erected on the frame 11.

Further specifically, the driving components respectively comprise a traction motor 5, a lower chain wheel seat 4, a lower chain wheel 3, an upper chain wheel seat 12, an upper chain wheel 13 and a chain 25, wherein the traction motor 5 is in transmission connection with the lower chain wheel 3 through the lower chain wheel seat 4, the upper chain wheel 13 is in rotation connection with the upper chain wheel seat 12, the chain 25 is wound on the upper chain wheel 13 and the lower chain wheel 3, and the chain 25 is fixedly installed on the upper part of the weight box 1.

Wherein, the traction motor 5 is started to drive the lower chain wheel 3 to rotate, the lower chain wheel 3 rotates and drives the chain 25 positioned on the lower chain wheel, and the chain 25 rotates around the lower chain wheel 3 (i.e. the driving wheel) and the upper chain wheel 13 (i.e. the driven wheel). The chain 25 drives the weight box 1 to move up and down in the rotating process.

Further specifically, the lifting component comprises an upper platform 14, a roller 16, a sling 24, a guide wheel 17, a belt 18 and a polished rod 21, wherein the upper platform 14 is fixedly arranged at the upper end of the frame 11, the roller 16 and the guide wheel 17 are arranged on the upper platform 14, a load sensor 15 is arranged on the upper platform 14 and is close to the roller 16, the lower end of the sling 24 is fixedly connected with the upper part of the weight box 1, the upper end of the sling 24 is fixedly connected with the belt 18, the belt 18 bypasses the upper surfaces of the roller 16 and the guide wheel 17, a belt connector 19 is fixedly arranged at one end of the belt 18 far away from the sling 24, a polished rod clamping and suspending device 20 is fixedly arranged at the lower part of the belt connector 19, and the polished rod clamping and suspending device 20 is fixedly connected with the upper end of the polished rod 21.

Wherein one end of the belt 18 is connected to the weight box 1 (i.e., weight box end counterweight) by slings 24. The other end of the belt 18 is connected with oil extraction equipment (i.e. wellhead end counterweight) through the cooperation of a belt connector 19, a polished rod clamp rope hanger 20 and a polished rod 21 in sequence. Since the weight of the wellhead end changes during oil recovery, the weight of the weight box end needs to be increased or decreased. The load sensor 15 is disposed on the upper platform 14 near the drum 16, and the load sensor 15 is configured to detect the weight of the weight box end and the weight of the wellhead end, and to transmit information of these two weight values to the value control unit.

Specifically, an inclined plate 103 is arranged on the inner bottom wall of the weight box 1, and a feed inlet 101 and a discharge outlet 102 are respectively arranged on one side wall of the weight box 1. A material door is arranged at the material outlet 102 of the weight box 1. An electric cylinder is arranged on one side wall of the weight box 1 and positioned at the material gate, and an output shaft of the electric cylinder is fixedly connected with the material gate. The electric cylinder is used for driving the material door to move, and the material outlet 102 is opened and closed through the movement of the material door.

In which the rolling of the individual steel balls 23, i.e. the unloading, is facilitated by the provision of inclined plates 103 in the weight box 1. When the weight of the weight box 1 needs to be increased, each steel ball 23 enters the weight box 1 through the feed inlet 101; when it is desired to reduce the weight of the weight box 1, the door of the weight box 1 is opened and the steel balls 23 located in the weight box 1 roll out through the discharge port 102.

Specifically, the screw elevator 2 includes a servo motor 202, a material collecting box 203, a barrel 207, a helical blade 201, and a shaft 206, wherein the barrel 207 is fixedly mounted on the base 9, the material collecting box 203 is fixedly mounted on a side wall of the barrel 207 and is communicated with the interior of the barrel 207, the shaft 206 is longitudinally mounted in the barrel 207 and is rotationally connected with the barrel 207, the helical blade 201 is sleeved on an outer side wall of the shaft 206 and is fixedly connected therewith, the servo motor 202 is fixedly mounted above the barrel 207, and a driving shaft of the servo motor 202 is in transmission connection with the shaft 206.

Wherein, the collection box 203 is used for collecting each steel ball 23, and the bottom wall of the collection box 203 is inclined, so that the steel balls 203 roll into the cylinder 207. The screw blade 201 is used to transport the steel balls in the collection box 203 from a low position to a high position, i.e., to shift the position of each steel ball 203. When the servo motor 202 is started, the servo motor 202 drives the shaft lever 206 to rotate, the shaft lever 206 drives the spiral blade 201 fixedly connected with the shaft lever to rotate, and the spiral blade 201 drives the steel ball 23 to spirally rise (stated that, the speed of the spiral blade 201 driving the steel ball 23 to rise is greater than the speed of the steel ball 23 rolling downwards by the self weight, namely, when the spiral blade 201 is started, the steel ball 23 is necessarily driven to move upwards).

The spiral elevator 2 further comprises a discharging chute plate 204 and a feeding chute plate 205, wherein the discharging chute plate 204 is inclined and fixedly installed on the material collecting box 203, the feeding chute plate 205 is inclined and fixedly installed on the upper portion of the barrel 207, and the inner cavity of the barrel 207 is communicated with the feeding chute plate 205.

Wherein, when adding the counter weight of the weight box 1: the servo motor 202 is started and drives the spiral blade 201 to rotate, the spiral blade 201 rotates to drive each steel ball 23 to move upwards in a spiral mode, and when each steel ball 23 moves to the upper portion of the cylinder 207, each steel ball 23 rolls onto the feeding groove plate 205 and rolls into the weight box 1 through the feeding groove plate 205. When reducing the weight of the weight box 1: the door of the weight box 1 is opened and the steel balls 23 in the weight box 1 roll out of the weight box 1 and fall into the collection box 203 through the discharge chute 204.

Specifically, a control board is provided in the electric cabinet 8, and the control board is electrically connected (including communication connection) with the load sensor 15, the position sensor 7, the servo motor 202, the electric cylinder, and the traction motor 5, respectively. The control board can be one of a singlechip and an editable logic controller, and can also be a computer end processor, and a logic control program and a time sequence program are carried in the control board. Other parts and electrical elements are also arranged in the electric cabinet 8 so as to meet the normal operation of the vertical pumping unit.

The load sensor 15 transmits the detected two weight values (i.e., the wellhead end weight value and the weight box end weight value) to the control board, and the control board compares the two weight values to obtain a weight difference value (wellhead end weight-weight box end weight=weight difference value). When the weight difference is positive, the weight box 1 is required to be weighted. When the weight difference is negative, the weight box 1 is required to be weight-reduced. For example: the weight of the wellhead end is 60KN, and the weight of the weight box end is 80KN, which indicates that the end of the weight box is heavier and the weight inside the weight box needs to be reduced; the weight of the wellhead end is 100KN, and the weight of the weight box end is 80KN, which indicates that the wellhead end is heavy, and the weight inside the weight box needs to be increased.

The number of the steel balls 23 is large, each steel ball 23 has a certain weight, and the weights of the steel balls 23 are consistent.

When the weight sensor is used, the first load sensor 15 detects the weight of the wellhead end and the weight of the weight box end in real time, and transmits weight information to the control board.

2. The control board obtains a weight difference value according to the wellhead end weight and the weight box end weight information, and judges whether the weight of the weight box 1 needs to be increased or decreased.

3. When it is desired to reduce the weight of the weight box 1: the control board controls the traction motor 5 to start, and the traction motor 5 drives the weight box 1 to move downwards through the lock chain 25, so that the weight box 1 moves downwards to the lowest position. When the position sensor 7 at the lower end part of the frame 11 detects that the weight box 1 reaches the lowest position, the position sensor 7 sends a signal to the control board, and the control board responds to the position sensor 7 and controls to open the electric cylinder which drives the material door to move so as to open the material outlet 102. Part of the steel balls 23 in the weight box 1 roll towards the discharge chute plate 204 through the discharge hole 102 and roll into the material collecting box through the discharge chute plate 204, so that the weight of the weight box 1 is reduced. The load sensor 15 continuously detects the weight of the wellhead end and the weight of the weight box end, and transmits weight information to the control board, and the control board judges whether the weight is balanced or not according to the two weight information; when the weights at the two ends are balanced, the control board controls the electric cylinder to be closed, the electric cylinder drives the material door to move and block the material outlet 102, and the steel balls in the weight box 1 are not rolled out any more. And (III) the weight of the inlet end and the weight box end is balanced, and the vertical pumping unit continues to work.

4. When it is necessary to increase the weight of the weight box 1: the control board controls the traction motor 5 to start, and the traction motor 5 drives the weight box 1 to move downwards through the lock chain 25, so that the weight box 1 moves downwards to the lowest position. When the position sensor 7 at the lower end of the frame 11 detects that the weight box 1 has reached the lowest position, the position sensor 7 sends a signal to the control board, which responds to the position sensor 7 and controls the servo motor 202 to be turned on. The servo motor 202 is started and drives the spiral blade 201 to rotate, the spiral blade 201 rotates to drive each steel ball 23 to move upwards in a spiral mode, when each steel ball 23 moves to the upper portion of the barrel 207, each steel ball 23 rolls onto the feeding groove plate 205 and rolls to the feed inlet 101 of the weight box 1 through the feeding groove plate 205, and enters the weight box 1 through the feed inlet 101. The load sensor 15 continuously detects the weight of the wellhead end and the weight of the weight box end, and transmits the two weight information to the control board, and the control board judges whether the weight is balanced or not according to the two weight information; when the weights at the two ends are balanced, the control board controls the servo motor 202 to be closed, the servo motor 202 stops working, and the steel balls 23 on the spiral blades 201 roll downwards along with the threads of the blades until the steel balls 23 fall back to the bottom of the barrel 207. And (III) the weight of the inlet end and the weight box end is balanced, and the vertical pumping unit continues to work.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. An automatic balance vertical pumping unit, its install on basis (10) and be used for the oil recovery operation, including installing base (9) on basis (10) to and support body (11), support body (11) are installed on base (9), its characterized in that: the frame body (11) is internally provided with a weight box (1), a plurality of steel balls (23) are arranged in the weight box (1), the base (9) is provided with a spiral lifter (2), and the spiral lifter (2) is used for increasing or reducing the number of the steel balls (23) in the weight box (1); the automatic lifting device comprises a frame body (11), and is characterized by further comprising a control part, wherein the control part comprises an electric cabinet (8), a load sensor (15) and a position sensor (7), the position sensor (7) is arranged at the bottom of the frame body (11) and is used for detecting the position of the weight box (1), the load sensor (15) is arranged at the upper part of the frame body (11) and is used for detecting the weight of weight bodies at two sides of a belt (18), and the control part is electrically connected with the spiral lifting machine (2) and is used for controlling the start and stop of the spiral lifting machine (2); screw lift (2) include servo motor (202), collection material case (203), barrel (207), helical blade (201) and axostylus axostyle (206) respectively, barrel (207) fixed mounting is on base (9), collection material case (203) fixed mounting just communicates with the inside of barrel (207) on one lateral wall of barrel (207), axostylus axostyle (206) longitudinal mounting just rotates with barrel (207) to be connected in barrel (207), helical blade (201) cover is established at the lateral wall of axostylus axostyle (206) and rather than fixed connection, the top of servo motor (202) fixed mounting barrel (207), the drive shaft of servo motor (202) is connected with axostylus axostyle (206) transmission.

2. The automatically-balanced vertical pumping unit according to claim 1, wherein: the lifting device is characterized in that a driving component and a lifting component are arranged on the frame body (11), the driving component is used for driving the weight box (1) to move up and down in the frame body (11), and the lifting component is used for hanging oil extraction equipment (22) located at a wellhead.

3. The automatically-balanced vertical pumping unit according to claim 2, wherein: the driving part comprises a traction motor (5), a lower chain wheel seat (4), a lower chain wheel (3), an upper chain wheel seat (12), an upper chain wheel (13) and a chain (25), wherein the traction motor (5) is in transmission connection with the lower chain wheel (3) through the lower chain wheel seat (4), the upper chain wheel (13) is in rotary connection with the upper chain wheel seat (12), the chain (25) is wound on the upper chain wheel (13) and the lower chain wheel (3), and the chain (25) is fixedly arranged on the upper part of the weight box (1).

4. The automatically-balanced vertical pumping unit according to claim 2, wherein: the lifting part comprises an upper platform (14), a roller (16), a sling (24), a guide wheel (17), a belt (18) and a polish rod (21), wherein the upper platform (14) is fixedly installed at the upper end of a frame body (11), the roller (16) and the guide wheel (17) are installed on the upper platform (14), a load sensor (15) is installed on the upper platform (14) and is close to the roller (16), the lower end of the sling (24) is fixedly connected with the upper part of a weight box (1), the upper end of the sling (24) is fixedly connected with the belt (18), the belt (18) bypasses the upper surfaces of the roller (16) and the guide wheel (17), one end of the belt (18) away from the sling (24) is fixedly provided with a belt connector (19), the lower part of the belt connector (19) is fixedly provided with a polish rod clamping and suspending rope device (20), and the polish rod clamping and suspending rope device (20) is fixedly connected with the upper end of the polish rod (21).

5. The automatically-balanced vertical pumping unit according to claim 1, wherein: the automatic weighing device is characterized in that an inclined plate (103) is arranged on the inner bottom wall of the weight box (1), and a feed inlet (101) and a discharge outlet (102) are respectively formed in one side wall of the weight box (1).

6. The automatically-balanced vertical pumping unit according to claim 1, wherein: the spiral elevator (2) further comprises a discharging trough plate (204) and a feeding trough plate (205), wherein the discharging trough plate (204) is obliquely and fixedly installed on the material collecting box (203), the feeding trough plate (205) is obliquely and fixedly installed on the upper portion of the barrel body (207), and an inner cavity of the barrel body (207) is communicated with the feeding trough plate (205).

7. An automatically-balanced vertical pumping unit according to any one of claims 1 to 6, characterized in that: a control board is arranged in the electric cabinet (8), and the control board is electrically connected with the load sensor (15), the position sensor (7), the servo motor (202) and the traction motor (5) respectively.