A disc-type energy-saving oil pump

Abstract

This invention relates to the field of oil production equipment technology, and more particularly to a disc-type energy-saving pumping unit. This disc-type energy-saving pumping unit includes a tower-shaped frame with a circular steel ball on it. A disc is mounted on the frame, and a concave sliding plate with a downward-facing surface is located in the center of the disc. The concave sliding plate and the circular steel ball are fitted together. A counterweight mechanism on the disc causes the disc to rotate periodically around the circular steel ball, with one point on the disc always at its lowest position. Multiple traction mechanisms are evenly distributed on the bottom surface of the disc, connecting to the pumping wells. The periodic movement of the disc drives each well to perform oil pumping. The disc-type energy-saving pumping unit proposed in this invention has a simple structure, fewer transmission links, high system efficiency and motor utilization; low ineffective load, small variation in alternating stress caused by effective load, and long service life. By providing multiple traction mechanisms on the disc, it can drive multiple wells within a certain range to pump oil simultaneously, achieving multi-purpose use, regional oil production, and reduced energy consumption.

Description

Technical Field

[0001] This invention relates to the field of oil production equipment technology, and in particular to a disc-type energy-saving oil pumping unit. Background Technology

[0002] In daily oilfield production, single-well four-bar pumping units have long dominated rod pump oil production equipment. However, existing conventional pumping units suffer from numerous transmission links and low system efficiency; during operation, there are ineffective loads such as sucker rods and counterweights, while the effective load fluctuates significantly, resulting in low motor utilization; and in areas with relatively dense well distribution, a separate pumping unit is still required for each well, leading to high operating costs. Therefore, to address these shortcomings, a disc-type energy-saving pumping unit is proposed. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a disc-type energy-saving oil pumping unit, which solves the problems of multiple transmission links, low system efficiency, large ineffective load, large alternation amplitude of effective load, and low motor utilization in oil pumping units.

[0005] (II) Technical Solution

[0006] To address the above problems, the present invention provides a disc-type energy-saving oil pumping unit, comprising:

[0007] The machine includes a frame and a wheel; a wheel is mounted on top of the frame; a circular steel ball is located at the top of the frame, and the wheel is circular with a downward-facing concave sliding plate in the center. The concave surface of the sliding plate is hemispherical and mates with the circular steel ball; the wheel is mounted on the circular steel ball via the concave sliding plate, allowing it to rotate freely around the circular steel ball; a counterweight mechanism is located on the edge of the upper surface of the wheel, causing it to rotate around the circular steel ball with one point always at its lowest position; a horizontally placed support disc is located below the circular steel ball on the frame, ensuring that the wheel always has one point in contact with the outer edge of the support disc during rotation; multiple traction mechanisms are evenly distributed around the lower surface of the wheel, with the other end of each mechanism connected to an oil well, driving the oil well to operate via the wheel.

[0008] Preferably, the wheel is provided with two semi-circular spherical sliding plates to fix the wheel on the circular steel ball.

[0009] Preferably, the spherical sliding plate is connected to the wheel disc by bolts.

[0010] Preferably, the traction mechanism includes a lifting ring and a wire rope, the lifting ring is mounted on a wheel, and one end of the wire rope is connected to the lifting ring and the other end is connected to the oil well.

[0011] Preferably, the counterweight mechanism includes an electric walker and a ring-shaped guide rail; the ring-shaped guide rail is circular and arranged concentrically with the wheel, and the electric walker is mounted on the ring-shaped guide rail.

[0012] Preferably, the cross-section of the annular guide rail is I-shaped.

[0013] Preferably, the electric walker moves at a constant speed on the annular guide rail, and the weight of the electric walker drives the wheel to make a deflection motion around the circular steel ball in sync with the electric walker.

[0014] Preferably, the wheel is provided with a plurality of openings evenly distributed on it.

[0015] (III) Beneficial Effects

[0016] The disc-type energy-saving pumping unit provided by this invention, through the cooperation of spherical sliding pads and circular steel balls, and with a counterweight mechanism on the disc, reduces the number of transmission links, resulting in high system efficiency and high motor utilization. The device has a simple structure, low ineffective load, and the counterweight mechanism, as the effective load, generates a small amplitude of alternating stress during operation, thus extending the device's service life. Furthermore, by incorporating several traction mechanisms on the disc, it can simultaneously pump oil from multiple evenly distributed wells within a certain radius. Automatic mutual balancing through load changes in each well enables multi-purpose operation, regional oil production, and reduced energy consumption. Attached Figure Description

[0017] Figure 1 This is a front view of the disc-type energy-saving oil pumping unit of the present invention;

[0018] Figure 2 This is a side view of the disc-type energy-saving oil pumping unit of the present invention;

[0019] Figure 3 This is a schematic diagram of the frame structure of the disc-type energy-saving oil pumping unit of the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-section of the wheel of the disc-type energy-saving oil pumping unit of the present invention;

[0021] Figure 5 This is a schematic diagram of the spherical sliding bearing of the disc-type energy-saving oil pumping unit of the present invention.

[0022] The components include: 1. Frame; 2. Wheel; 3. Spherical sliding plate; 4. Bolt; 5. Electric walking device; 6. Wire rope; 7. Circular steel ball; 8. Support disc; 9. Concave sliding plate; 10. Circular guide rail; 11. Lifting ring. Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it is necessary to understand that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top", and "bottom" are based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of this invention and to simplify the description. It is not intended to indicate or imply that the component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0025] like Figure 1-5 As shown, the present invention provides a disc-type energy-saving oil pumping unit, specifically comprising: a frame 1 and a disc 2; the frame 1 is installed on the construction site and serves as the main body supporting the weight of the device itself during operation, and fixing all components in the working position. A circular steel ball 7 is provided at the top of the frame 1 for mounting to the disc 2.

[0026] Among them, the frame 1 is tower-shaped, which has good stability and load-bearing capacity, and the tower-shaped structure facilitates the installation of steel balls 7.

[0027] like Figure 1-2 As shown, the wheel 2 is circular, with a concave sliding plate 9 in the center. The concave surface of the sliding plate 9 is hemispherical and faces downwards. The wheel 2 is mounted on the frame 1. During installation, the concave sliding plate 9 engages with the circular steel ball 7, with the upper half of the circular steel ball 7 inserted into the concave sliding plate 9. During operation, the wheel 2 can rotate in all directions around the circular steel ball 7. Two spherical sliding plates 3 are located below the wheel 2 to fix the circular steel ball 7 to the wheel 2.

[0028] The wheel 2 has several evenly spaced openings. These openings result in a more uniform weight distribution and reduced weight, minimizing unnecessary loads and energy waste during operation, thus improving efficiency. Furthermore, the openings prevent rain and snow from accumulating on the wheel 2 and affecting normal operation, enhancing practicality and reducing the impact of external environmental factors.

[0029] like Figure 4 and Figure 5As shown, the spherical sliding plate 3 is a semi-circular ring. The interior of the spherical sliding plate 3 is a spherical surface that mates with the circular steel ball 7. After the circular steel ball 7 and the concave sliding plate 9 are installed, the two spherical sliding plates 3 are fastened from the bottom of the wheel 2 to the bottom of the circular steel ball 7 and connected to the wheel 2 by bolts 4. At this time, the spherical sliding plate 3 and the concave sliding plate 9 cooperate to form a spherical inner cavity and cover the circular steel ball 7 inside the spherical inner cavity. The spherical surface inside the spherical inner cavity mates with the circular steel ball 7. While not affecting the free rotation of the wheel 2, the position of the circular steel ball 7 and the wheel 2 is relatively fixed, preventing the wheel 2 from slipping off the circular steel ball 7 due to excessive rotation angle or external force during operation, thereby improving the safety of the device.

[0030] In this invention, the wheel 2 is provided with a counterweight mechanism, which drives the wheel 2 to rotate periodically. When the wheel 2 rotates, due to the gravity of the counterweight mechanism, there is always a point at the lowest position.

[0031] The counterweight mechanism includes an electric walking device 5 and a circular guide rail 10. The circular guide rail 10 is annular and is mounted on and concentrically arranged with the wheel 2. The electric walking device 5 is mounted on the circular guide rail 10 and, under the action of a motor, performs periodic circular motion along the guide rail 10. Due to its own weight, during operation, the electric walking device 5 presses down on the wheel 2, causing the wheel to deflect towards the electric walking device 5. To increase the effect of the electric walking device 5 in deflecting the wheel, the diameter of the circular guide rail 10 is usually the same as that of the wheel 2.

[0032] like Figure 4 As shown, the cross-section of the annular guide rail 10 is 'I' shaped. The grooves on both sides of the I-shaped guide rail can easily fix the electric walker 5 on the annular guide rail 10. At the same time, the grooves on both sides of the I-shaped guide rail can serve as the track for the electric walker 5, eliminating the need for further processing of the annular guide rail 10 and reducing workload.

[0033] In this invention, multiple traction mechanisms are evenly arranged below the wheel 2. One end of each traction mechanism is connected to the bottom of the wheel 2, and the other end is connected to the oil well. During operation, under the action of the electric walking device 5, each point on the edge of the wheel 2 makes a periodic lifting motion. As the traction mechanism is lifted at the connection point with the wheel 2, it drives the oil pump in the oil well to operate, thereby driving the oil well to work.

[0034] Each traction mechanism includes a lifting ring 11 and a wire rope 6. The lifting rings 11 are evenly placed on the edge of the bottom surface of the wheel 2. One end of the wire rope 6 is connected to the lifting ring 11 and the other end is connected to the oil well. Under the action of the electric walking device 5, when one side of the wheel 2 is lowered to the lowest point, the lifting ring 11 and the wire rope 6 descend together with the wheel 2. When one side of the wheel 2 is raised, the lifting ring 11 and the wire rope 6 are raised together with the wheel 2. With the periodic rotation of the wheel 2, the wire rope 6 drives the oil pump in the oil well to move periodically, thereby driving the oil well to perform oil pumping.

[0035] It should be noted that in order to ensure the balance of the wheel 2, the number of traction mechanisms is at least two. By evenly arranging multiple traction mechanisms on the edge of the wheel 2, it is possible to simultaneously pump oil from multiple evenly distributed oil wells within a certain range using only one pumping unit. During the process, the load changes of each oil well can be adjusted to achieve mutual balance, realizing multi-purpose use of one machine, regional oil production, saving construction costs, and achieving energy conservation and improving the economic efficiency of the device since only one pumping unit is required to work.

[0036] like Figure 3 As shown, a support disc 8 is provided on the frame 1, which is below the circular steel ball 7. During the rotation of the wheel 2, when the lowest point of the wheel 2 meets the working conditions of the oil pump in the corresponding pumping unit, the wheel 2 makes point contact with the edge of the support disc 8, and the force on the wheel 2 is distributed to the frame 1 through the support disc 8. At the same time, the support disc 8 limits the wheel 2 to prevent the wheel 2 from sinking too much and colliding with the frame 1, causing damage to the device structure.

[0037] To maintain the stability of the device, the weight of the electric walker 5 is typically adjusted so that the wheel 2 always maintains contact with the supporting disc 8 at a certain point during operation. Additionally, when drilling holes in the wheel 2, an annular area is left at the corresponding position where it can contact the supporting disc 8, ensuring contact during operation.

[0038] In actual operation, the electric walking device 5 moves at a constant speed in one direction along the circular guide rail 10. Under the action of the weight of the electric walking device 5 and the wheel 2, the wheel 2 deflects to one side and the speed of the deflection matches the speed of the electric walking device 5. At this time, the lowest point of the wheel 2 changes with the position of the electric walking device 5. At the same time, the point on the wheel 2 that is symmetrical to the center of the electric walking device 5 is at the highest point, driving the oil pump to rise. While the wheel 2 deflects periodically with the electric walking device 5, the traction devices connected to the wheel 2 drive the oil pump in the corresponding oil well to perform periodic actions, so that one pumping unit can pump oil from multiple oil wells at the same time.

[0039] The disc-type energy-saving pumping unit provided by this invention has fewer transmission links, higher system efficiency, less ineffective load during operation, smaller alternating amplitude of effective load, and higher motor utilization. It can simultaneously produce oil from multiple oil wells evenly distributed in a region. The specific operation process of this device is as follows:

[0040] Step 1: Install the device in the designated installation location according to its structure.

[0041] Step 2: Based on the required number and location of oil wells to be connected, evenly install the traction mechanism on the wheel and connect the wire rope of each traction mechanism to the oil pump in its corresponding oil well.

[0042] Step 3: Start the electric traverse unit. The electric traverse unit performs a unidirectional, uniform, periodic motion on the circular guide rail. During this process, due to its own weight, the electric traverse unit is always at its lowest point on the wheel. While the electric traverse unit performs its periodic motion, the wheel rotates around the circular steel ball in the same period as the electric traverse unit. During the rotation, there is always a point on the wheel that is in contact with a point on the edge of the supporting disc, transmitting the force borne by the wheel to the frame. When a point on the wheel is at its highest point, the traction mechanism at that point drives the corresponding oil pump in the well to rise. When a point on the wheel is at its lowest point, the traction mechanism at that point drives the corresponding oil pump in the well to sink. This cycle repeats, enabling simultaneous oil extraction from each oil well connected to the wheel.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disc-type energy-saving oil pumping unit, characterized in that, include: A frame (1) and a wheel (2); a wheel (2) is provided on the top of the frame (1); a circular steel ball (7) is provided at the top of the frame (1), the wheel (2) is circular, and a concave sliding plate (9) with an opening facing downward is provided in the middle of the wheel (2). The concave surface of the sliding plate (9) is hemispherical and cooperates with the circular steel ball (7); the wheel (2) is mounted on the circular steel ball (7) through the concave sliding plate (9), and the wheel (2) can rotate freely around the circular steel ball (7) as the center; a counterweight mechanism is provided on the edge of the upper surface of the wheel (2), and the movement of the counterweight mechanism on the wheel (2) causes the wheel (2) to rotate around the circular steel ball (7). The wheel rotates and always has a point at the lowest position; the counterweight mechanism includes an electric walker (5) and an annular guide rail (10); the annular guide rail (10) is circular and arranged concentrically with the wheel (2), and the electric walker (5) is installed on the annular guide rail (10); a horizontally placed support disc (8) is provided below the circular steel ball (7) on the frame (1), and the wheel (2) always has a point in contact with a point on the outer edge of the support disc (8) during rotation; multiple traction mechanisms are evenly arranged around the lower surface of the wheel (2), and the other end of the traction mechanism is connected to the oil well, and the oil well is driven to work through the wheel (2).

2. The disc-type energy-saving oil pumping unit according to claim 1, characterized in that, The wheel (2) is provided with two semi-circular spherical sliding plates (3) to fix the wheel (2) on the circular steel ball (7).

3. The disc-type energy-saving oil pumping unit according to claim 2, characterized in that, The spherical sliding plate (3) is connected to the wheel (2) by bolts (4).

4. The disc-type energy-saving oil pumping unit according to claim 1, characterized in that, The traction mechanism includes a lifting ring (11) and a wire rope (6). The lifting ring (11) is mounted on a wheel (2), and one end of the wire rope (6) is connected to the lifting ring (11) and the other end is connected to the oil well.

5. A disc-type energy-saving oil pumping unit according to claim 1, characterized in that, The cross-section of the annular guide rail (10) is I-shaped.

6. A disc-type energy-saving oil pumping unit according to claim 1, characterized in that, The electric walking device (5) moves at a constant speed on the circular guide rail (10). The weight of the electric walking device (5) drives the wheel (2) to make a deflection motion around the circular steel ball (7) in sync with the electric walking device (5).

7. A disc-type energy-saving oil pumping unit according to claim 1, characterized in that, The wheel (2) has several openings evenly distributed on it.

Images