Winch vertical pumping unit
By introducing anti-offset components, balanced components and guide columns into the vertical oil pump, the problems of wire rope winding misalignment and unstable counterweight devices are solved, and the efficient and stable operation of the oil pump is achieved.
Patent Information
- Application Number
- CN202510795442.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-08-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing vertical oil pumps are reciprocating at high speed, the winding position of the wire rope is easily misaligned, resulting in untimely winding. The counterweight device is prone to slipping and jumping of wire ropes under high speed or sudden load changes, affecting the stability of the equipment.
A winch vertical oil pump is designed, which includes an anti-offset assembly, a balanced assembly and a guide column. The anti-offset assembly is wound in conjunction with the oil rope through a limit rod. The balanced assembly buffers the counterweight box movement through a reverse-winding balanced rope, and the guide column ensures the stability of the rope.
It effectively avoids the dislocation of the wire rope winding position and the unstable counterweight device, improves the working efficiency and stability of the oil pump, and ensures the accuracy and stability of the rope collection and placement process.
Smart Images
Figure CN120402012A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pumping units, and particularly to a hoisting vertical pumping unit. Background Art
[0002] A pumping unit is a core device used for extracting crude oil in oil exploitation. It lifts the underground crude oil to the ground through mechanical movement. As the core of the rod pumping system, the pumping unit drives the sucker rod string to reciprocate up and down through a power device, drives the downhole pump (such as a plunger pump) to work, and realizes the continuous extraction of crude oil. Its working principle is based on energy conversion, converting mechanical energy into the potential energy of crude oil, and overcoming the formation pressure to transport the crude oil to the ground.
[0003] Deficiencies in the prior art: The existing vertical pumping units are usually in high-speed reciprocating motion, and the wire rope needs to be continuously retracted and released. When the reciprocating motion is too fast, the winding position of the wire rope in the existing pumping units is prone to dislocation, causing the wire ropes to stack and wind together, resulting in untimely retraction and release of the wire ropes, affecting the normal use of the pumping unit. At the same time, under the influence of high-speed operation or sudden load changes, the balance effect of the counterweight device in the existing pumping units is prone to phenomena such as wire rope slipping and running off the groove, which may lead to increased equipment vibration and unstable movement of the sucker rod. Summary of the Invention
[0004] The problem to be solved by the present invention is that when the reciprocating motion of the existing pumping unit is too fast, the winding position of the wire rope is prone to dislocation, causing the wire ropes to stack and wind together, resulting in untimely retraction and release of the wire ropes. At the same time, under the influence of high-speed operation or sudden load changes, the balance effect of the counterweight device of the existing pumping unit is prone to phenomena such as wire rope slipping and running off the groove.
[0005] To solve the above technical problems, the present invention provides a hoisting vertical pumping unit, which includes a frame and an equipment platform fixedly installed at its top. One side of the top of the equipment platform is fixedly installed with a hoisting mechanism, the middle of the equipment platform is provided with a balance assembly for keeping the pumping unit balanced, one side of the bottom of the equipment platform is fixedly connected with a support frame, and a guide post for increasing the stability of the rope is arranged in the middle of the support frame; The hoisting mechanism includes a mounting frame fixedly connected to one side of the top of the equipment platform. One side of the top of the mounting frame is fixedly installed with a shaft frame, and a wire reel for winding the rope is rotatably connected in the middle of the shaft frame. An anti-offset assembly for preventing the rope from getting disordered is arranged on one side of the wire reel; The anti-offset assembly includes a fixed frame fixedly connected to the top of the mounting frame. Rotating connection blocks are fixedly connected to both sides of the top of the fixed frame. A top rod is connected in the middle of the rotating connection block, and a limiting rod is fixedly connected between the two top rods.
[0006] Preferably, an oil pumping rope is wound around the surface of the wire spool, and the position of the limiting rod corresponds to the surface of the oil pumping rope.
[0007] Preferably, a hydraulic cylinder is installed in the middle of the top end of the fixing frame, and the extending end of the hydraulic cylinder is fixedly connected to the middle of the limiting rod.
[0008] Preferably, a hoisting motor is fixedly installed on the other side of the top end of the mounting frame. The output end of the hoisting motor is connected to a speed reducer, and the output end of the speed reducer is connected to one end of the wire spool.
[0009] Preferably, a first connecting rod is fixedly connected to one side of the inner cavity of the equipment platform, a second connecting rod is rotatably connected to the other side of the inner cavity of the equipment platform. A guide wheel is movably connected to the surface of the first connecting rod, a main wheel is fixedly connected to the middle of the surface of the second connecting rod. One end of the oil pumping rope away from the wire spool is sequentially wound around the outer surfaces of the guide wheel and the main wheel, and passes through the inner cavity of the guide column and is connected to the oil pumping rod.
[0010] Preferably, the balance assembly includes a third connecting rod fixedly connected to the middle of the inner cavity of the equipment platform. Two first rollers are rotatably connected to the surface of the third connecting rod. Two second rollers are fixedly connected to both sides of the surface of the second connecting rod. A balance rope is wound around the surface of each of the two second rollers. One end of the balance rope away from the second roller is wound around the outer surface of the first roller and is fixedly connected to a counterweight box.
[0011] Preferably, the first roller and the second roller are horizontally arranged. The winding direction of the balance rope is opposite to the winding direction of the oil pumping rope. The oil pumping rope is located between the two balance ropes. The counterweight box is arranged in the inner cavity of the frame.
[0012] The technical effects and advantages of the present invention: 1. By providing an anti-offset assembly, the present invention ensures that the oil pumping rope can be neatly wound around the surface of the wire spool. When the wire spool rotates to control the winding and unwinding of the oil pumping rope, the limiting rod always fits the surface of the oil pumping rope, pressing the oil pumping rope against the surface of the wire spool. When the oil pumping rope is wound around the surface of the wire spool, the winding position of the oil pumping rope is limited by the limiting rod, avoiding the winding position of the oil pumping rope being misaligned and stacked around the surface of the wire spool during high-speed operation, resulting in untimely winding and unwinding of the oil pumping rope during reciprocating motion and affecting the working efficiency of the oil pumping unit. At the same time, a hydraulic cylinder is provided to support the position of the limiting rod, avoiding the position of the limiting rod being offset during high-speed operation and affecting the limiting effect of the limiting rod on the oil pumping rope; 2. The present invention connects the counterweight box by providing two balance ropes. The two balance ropes are respectively wound around the surfaces of two first rollers and a second roller, and the winding direction of the balance ropes is opposite to that of the pumping rope, so that the balance ropes make a reciprocating motion in the direction opposite to that of the pumping rope. The first roller plays a buffering role in the retraction and release of the balance ropes, avoiding directly pulling the counterweight box and causing excessive load on the second roller, effectively increasing the stability of the counterweight box during the up and down movement. At the same time, when running at high speed or when the load suddenly changes, it can avoid phenomena such as the balance ropes slipping or jumping out of the groove, resulting in the shaking or deviation of the counterweight box. 3. The present invention increases the stability of the pumping rod driven by the pumping rope to move up and down by providing a guide post, avoiding the deviation or inclination of the pumping rope affected by the external environment, which affects the stability of the pumping rod during the up and down movement. At the same time, during the retraction and release of the pumping rope, the pumping rope between the main wheel and the reel is wound around the surface of the guide wheel. As the reel rotates, the retraction and release of the pumping rope are controlled. The guide wheel ensures the accuracy of the direction of the pumping rope moving from the reel to the main wheel surface, and at the same time increases the stability of the pumping rope moving to the main wheel surface, effectively increasing the stability of the pumping rope during the retraction and release process. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the present invention.
[0014] Figure 2 is a schematic diagram of the structure of the hoisting mechanism of the present invention.
[0015] Figure 3 of the present invention Figure 2 is an enlarged schematic diagram of the structure at A in
[0016] Figure 4 is a schematic diagram of the overall top view structure of the present invention.
[0017] Figure 5 is a schematic diagram of the structure of the balance assembly of the present invention.
[0018] Figure 6 is a schematic diagram of the overall sectional structure of the present invention.
[0019] The reference numerals are: 1, frame; 2, equipment platform; 3, hoisting mechanism; 31, mounting frame; 32, shaft frame; 33, wire reel; 34, anti-offset component; 341, fixed frame; 342, rotating connection block; 343, ejector rod; 344, limiting rod; 345, hydraulic cylinder; 35, pumping oil rope; 36, hoisting motor; 37, reducer; 4, balance component; 41, third connecting rod; 42, first roller; 43, second roller; 44, balance rope; 45, counterweight box; 5, support frame; 6, guide post; 7, first connecting rod; 8, second connecting rod; 9, guide wheel; 10, main wheel. Detailed implementation manners
[0020] The present invention provides a vertical hoisting oil pumping unit, as Figure 1 - Figure 6 shown, which includes a frame 1 and an equipment platform 2 fixedly installed at its top end. A hoisting mechanism 3 is fixedly installed on one side of the top end of the equipment platform 2. A balance component 4 for keeping the oil pumping unit balanced is arranged in the middle of the equipment platform 2. A support frame 5 is fixedly connected to one side of the bottom end of the equipment platform 2. A guide post 6 for increasing the stability of the rope is arranged in the middle of the support frame 5.
[0021] Furthermore, as Figure 1 and Figure 2 shown, the hoisting mechanism 3 includes a mounting frame 31 fixedly connected to one side of the top end of the equipment platform 2. A shaft frame 32 is fixedly installed on one side of the top end of the mounting frame 31. A wire reel 33 for winding the rope is rotatably connected in the middle of the shaft frame 32. An anti-offset component 34 for preventing the rope from getting disordered is arranged on one side of the wire reel 33.
[0022] Furthermore, as Figure 2 and Figure 3 shown, the anti-offset component 34 includes a fixed frame 341 fixedly connected to the top end of the mounting frame 31. Rotating connection blocks 342 are fixedly connected to both sides of the top end of the fixed frame 341. An ejector rod 343 is connected to the middle of the rotating connection block 342. A limiting rod 344 is fixedly connected between the two ejector rods 343.
[0023] Furthermore, as Figure 2 and Figure 3As shown in the figure, an oil pumping rope 35 is wound around the surface of the spool 33. The position of the limiting rod 344 corresponds to the surface of the oil pumping rope 35. The winding and unwinding operations of the oil pumping rope 35 are realized by the rotation of the spool 33. Since the oil pumping unit is usually in a high-speed reciprocating motion state, the spool 33 is also in a high-speed reciprocating rotational motion. When the spool 33 rotates to drive the oil pumping rope 35 to wind and unwind on its surface, one end of the limiting rod 344 always fits against the surface of the oil pumping rope 35. The oil pumping rope 35 is blocked and pressed by the limiting rod 344, and the wire body is guided to the surface of the spool 33, preventing the oil pumping rope 35 from loosening or displacing on the surface of the spool 33, so that the oil pumping rope 35 always tightly wraps around the surface of the spool 33 during the rotation process. As the winding process progresses, the limiting rod 344 plays a dynamic blocking role during the rotation of the oil pumping rope 35, restricting the winding range of the oil pumping rope 35 through physical contact, which can ensure that the oil pumping rope 35 does not exceed this range. The position of the limiting rod 344 is set at a specific distance from the surface of the spool 33, so that the oil pumping rope 35 always moves along the preset path during winding, avoiding lateral displacement caused by inertia or external forces, thereby maintaining the uniformity of winding, ensuring that the oil pumping rope 35 is evenly distributed on the surface of the spool 33, enabling the oil pumping rope 35 to be neatly wound around the surface of the spool 33, and avoiding the high-speed rotation of the spool 33 causing the winding position of the oil pumping rope 35 to be misaligned and stacked and wound on the surface of the spool 33, resulting in untimely winding and unwinding of the oil pumping rope 35 during reciprocating motion and affecting the working efficiency of the oil pumping unit.
[0024] Further, as Figure 3 shown, a hydraulic cylinder 345 is installed in the middle of the top end of the fixing frame 341. The extending end of the hydraulic cylinder 345 is fixedly connected to the middle of the limiting rod 344. The limiting rod 344 is supported by the extending end of the hydraulic cylinder 345, so that the limiting rod 344 can stably fit against the surface of the oil pumping rope 35, avoiding the position of the limiting rod 344 from shifting due to the high-speed operation of the oil pumping unit and ensuring that the oil pumping rope 35 can be wound and unwound in a timely manner.
[0025] Further, as Figure 2 shown, a hoisting motor 36 is fixedly installed on the other side of the top end of the mounting frame 31. The output end of the hoisting motor 36 is connected to a speed reducer 37. The output end of the speed reducer 37 is connected to one end of the spool 33. By driving the speed reducer 37 to rotate through the hoisting motor 36, the output shaft of the speed reducer 37 drives the spool 33 to rotate, controlling the winding and unwinding of the oil pumping rope 35. Among them, the existing technologies of the hoisting motor 36 and the speed reducer 37 are relatively mature and will not be elaborated here.
[0026] Further, as Figure 4As shown, a first connecting rod 7 is fixedly connected to one side of the inner cavity of the equipment platform 2, and a second connecting rod 8 is rotatably connected to the other side of the inner cavity of the equipment platform 2. A guide wheel 9 is movably connected to the surface of the first connecting rod 7, and a main wheel 10 is fixedly connected to the middle of the surface of the second connecting rod 8. One end of the pumping rope 35 away from the winding shaft 33 is sequentially wound around the outer surfaces of the guide wheel 9 and the main wheel 10, and penetrates through the inner cavity of the guide column 6 to be connected to the pumping rod. When the winding shaft 33 rotates clockwise, the pumping rope 35 is controlled to take in the line, driving the pumping rod to move upward. When the winding shaft 33 rotates counterclockwise, the pumping rope 35 is controlled to pay out the line, driving the pumping rod to move downward. Through the continuous reciprocating rotational movement of the winding shaft 33, the pumping rod is controlled to perform a reciprocating movement in the inner cavity of the pumping well to achieve the pumping operation. The pumping rope 35 between the pumping rod and the main wheel 10 moves up and down in the inner cavity of the guide column 6, avoiding the situation that the pumping rope 35 is offset or tilted due to the influence of the external environment, which affects the stability of the up and down movement of the pumping rod. At the same time, the pumping rope 35 between the winding shaft 33 and the main wheel 10 is wound around the surface of the guide wheel 9. When the pumping rope 35 moves from the winding shaft 33 to the surface of the main wheel 10, the guide wheel 9 slides on the surface of the first connecting rod 7 as the pumping rope 35 takes in and pays out. By the guide wheel 9, the accuracy of the direction when the pumping rope 35 moves from the winding shaft 33 to the surface of the main wheel 10 is ensured, increasing the stability of the pumping rope 35 on the surface of the main wheel 10, and effectively improving the stability of the process of taking in and paying out the pumping rope 35.
[0027] Further, as Figure 5 and Figure 6 shown, the balance assembly 4 includes a third connecting rod 41 fixedly connected to the middle of the inner cavity of the equipment platform 2. Two first rollers 42 are rotatably connected to the surface of the third connecting rod 41. Two second rollers 43 are fixedly connected to both sides of the surface of the second connecting rod 8. A balance rope 44 is wound around the surface of each of the two second rollers 43. One end of the balance rope 44 away from the second roller 43 is wound around the outer surface of the first roller 42, and a counterweight box 45 is fixedly connected thereto. The counterweight box 45 is pulled by the two balance ropes 44. When the main wheel 10 rotates, it drives the two second rollers 43 to rotate. By the rotation of the second rollers 43, the taking in and paying out of the balance rope 44 are controlled. The balance rope 44 between the second roller 43 and the counterweight box 45 is wound around the surface of the first roller 42. The first roller 42 plays a certain buffering effect on the balance rope 44, avoiding directly pulling the counterweight box 45, resulting in an excessive load on the second roller 43, effectively increasing the stability of the counterweight box 45 during the up and down movement, and at the same time avoiding phenomena such as the balance rope 44 slipping or jumping when running at high speed or the load suddenly changes, resulting in the counterweight box 45 shaking or shifting.
[0028] Further, as Figure 6As shown, the first roller 42 and the second roller 43 are horizontally arranged. The winding direction of the balance rope 44 is opposite to that of the pumping rope 35. The pumping rope 35 is located between the two balance ropes 44. The counterweight box 45 is arranged in the inner cavity of the frame 1. When the winding shaft 33 rotates clockwise to control the release of the pumping rope 35, it drives the main wheel 10 to rotate clockwise. Since the winding direction of the balance rope 44 is opposite, when the main wheel 10 rotates clockwise, it will drive the balance rope 44 to rotate counterclockwise on the surfaces of the first roller 42 and the second roller 43, realizing the winding operation of the balance rope 44, so that the balance rope 44 pulls the counterweight box 45 to move upward. When the winding shaft 33 rotates counterclockwise, the balance rope 44 moves in the opposite direction to balance the weight of the pumping rod, effectively reducing the load on the driving device in the pumping unit and improving the working efficiency.
[0029] Working principle of the present invention: First, one end of the oil pumping rope 35 on the surface of the wire spool 33 is successively wound around the surfaces of the guide pulley 9 and the main pulley 10. Then, one end of the oil pumping rope 35 after being wound around the surface of the main pulley 10 penetrates through the guide post 6 and is connected to the sucker rod. Next, the two balance ropes 44 are wound around the surface of the second roller 43, and the other ends are wound around the surface of the first roller 42 and connected to the top end of the counterweight box 45. Among them, the winding direction of the oil pumping rope 35 is opposite to the winding direction of the balance rope 44. After the preparation is completed, the hoisting motor 36 is started. The reduction gear 37 is driven to rotate by the hoisting motor 36, so that the output shaft of the reduction gear 37 drives the wire spool 33 to rotate. When the wire spool 33 rotates clockwise, the oil pumping rope 35 is controlled to take in the line, driving the sucker rod to move upward. When the wire spool 33 rotates counterclockwise, the oil pumping rope 35 is controlled to pay out the line, driving the sucker rod to move downward. Through the continuous reciprocating rotational movement of the wire spool 33, the sucker rod is controlled to perform a reciprocating movement in the inner cavity of the oil well to achieve the oil pumping operation. The oil pumping rope 35 between the sucker rod and the main pulley 10 moves up and down in the inner cavity of the guide post 6, avoiding the situation that the oil pumping rope 35 is offset or tilted due to the influence of the external environment, which affects the stability of the up and down movement of the sucker rod. At the same time, when the oil pumping rope 35 moves from the wire spool 33 to the surface of the main pulley 10, the guide pulley 9 slides on the surface of the first connecting rod 7 as the oil pumping rope 35 takes in and pays out, ensuring the accuracy of the direction when the oil pumping rope 35 moves from the wire spool 33 to the surface of the main pulley 10 through the guide pulley 9. When the wire spool 33 rotates to drive the oil pumping rope 35 to take in and pay out the line on its surface, one end of the limit rod 344 is always in contact with the surface of the oil pumping rope 35, controlling the accuracy of the winding position of the oil pumping rope 35 on the surface of the wire spool 33, so that the oil pumping rope 35 can be neatly wound around the surface of the wire spool 33, avoiding the misalignment of the winding position of the oil pumping rope 35 due to the high-speed rotation of the wire spool 33 and the stacked winding on the surface of the wire spool 33, resulting in the untimely taking in and paying out of the oil pumping rope 35 during the reciprocating movement. When the wire spool 33 rotates clockwise to control the oil pumping rope 35 to pay out the line, it drives the main pulley 10 to rotate clockwise. Since the winding direction of the balance rope 44 is opposite, when the main pulley 10 rotates clockwise, it will drive the balance rope 44 to rotate counterclockwise on the surfaces of the first roller 42 and the second roller 43, realizing the line taking-in operation of the balance rope 44, so that the balance rope 44 pulls the counterweight box 45 to move upward. When the wire spool 33 rotates counterclockwise, the balance rope 44 moves in the opposite direction to balance the weight of the sucker rod.
[0030] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.
Claims
1. A vertical hoisting pumping unit, comprising a frame (1) and an equipment platform (2) fixedly installed at the top thereof, characterized in that: On one side of the top end of the equipment platform (2), a hoisting mechanism (3) is fixedly installed. In the middle of the equipment platform (2), a balance component (4) for keeping the pumping unit balanced is arranged. On one side of the bottom end of the equipment platform (2), a support frame (5) is fixedly connected. In the middle of the support frame (5), a guide post (6) for increasing the stability of the rope is arranged. The hoisting mechanism (3) includes a mounting frame (31) fixedly connected to one side of the top end of the equipment platform (2). On one side of the top end of the mounting frame (31), a shaft frame (32) is fixedly installed. In the middle of the shaft frame (32), a wire reel (33) for winding the rope is rotatably connected. On one side of the wire reel (33), an anti-offset component (34) for preventing the rope from getting disordered is arranged. The anti-offset component (34) includes a fixed frame (341) fixedly connected to the top end of the mounting frame (31). On both sides of the top end of the fixed frame (341), rotating connection blocks (342) are fixedly connected. In the middle of the rotating connection blocks (342), a top rod (343) is connected. A limiting rod (344) is fixedly connected between the two top rods (343).
2. The vertical hoisting pumping unit according to claim 1, characterized in that: An oil pumping rope (35) is wound around the surface of the wire reel (33), and the position of the limiting rod (344) corresponds to the surface of the oil pumping rope (35).
3. A vertical hoisting pumping unit according to claim 1, characterized in that: In the middle of the top end of the fixed frame (341), a hydraulic cylinder (345) is installed. The extending end of the hydraulic cylinder (345) is fixedly connected to the middle of the limiting rod (344).
4. The vertical hoisting pumping unit according to claim 1, characterized in that: On the other side of the top end of the mounting frame (31), a hoisting motor (36) is fixedly installed. The output end of the hoisting motor (36) is connected to a speed reducer (37), and the output end of the speed reducer (37) is connected to one end of the wire reel (33).
5. The vertical hoisting pumping unit according to claim 2, characterized in that: On one side of the inner cavity of the equipment platform (2), a first connecting rod (7) is fixedly connected. On the other side of the inner cavity of the equipment platform (2), a second connecting rod (8) is rotatably connected. A guide wheel (9) is movably connected to the surface of the first connecting rod (7). In the middle of the surface of the second connecting rod (8), a main wheel (10) is fixedly connected. One end of the oil pumping rope (35) far from the wire reel (33) is sequentially wound around the outer surfaces of the guide wheel (9) and the main wheel (10), and penetrates through the inner cavity of the guide post (6) to be connected to the pumping rod.
6. The vertical hoisting pumping unit according to claim 5, characterized in that: The balance component (4) includes a third connecting rod (41) fixedly connected to the middle of the inner cavity of the equipment platform (2). Two first rollers (42) are rotatably connected to the surface of the third connecting rod (41). On both sides of the surface of the second connecting rod (8), two second rollers (43) are fixedly connected. A balance rope (44) is wound around the surface of each of the two second rollers (43). One end of the balance rope (44) far from the second roller (43) is wound around the outer surface of the first roller (42), and a counterweight box (45) is fixedly connected.
7. The vertical hoisting pumping unit according to claim 6, characterized in that: The first roller (42) and the second roller (43) are horizontally arranged. The winding direction of the balance rope (44) is opposite to that of the pumping rope (35). The pumping rope (35) is located between the two balance ropes (44). The counterweight box (45) is arranged in the inner cavity of the frame (1).