Wheel disc type energy-saving pumping unit

Abstract

The invention relates to the technical field of oil extraction equipment, in particular to a wheel disc type energy-saving oil pumping unit. The wheel disc type energy-saving oil pumping unit comprises a tower-shaped rack, a round steel ball is arranged on the rack, a wheel disc is installed on the rack, a concave surface sliding tile with a downward concave surface is arranged in the middle of the wheel disc, the concave surface sliding tile and the round steel ball are installed in a matched mode, and a balance weight mechanism is arranged on the wheel disc so that the wheel disc can periodically rotate around the round steel ball, and one point of the wheel disc can be located at the lowest position all the time. A plurality of traction mechanisms are evenly arranged on the bottom face of the wheel disc and connected to pumping wells, and the oil wells are driven to conduct oil pumping work through periodic movement of the wheel disc. The wheel disc type energy-saving oil pumping unit is simple in structure, few in transmission links and high in system efficiency and motor utilization rate; the invalid load is small, the change amplitude of alternating stress generated by the effective load is small, and the service life of the device is long; the multiple traction mechanisms are arranged on the wheel disc, multiple wells in a certain range can be driven to conduct oil pumping at the same time, multiple purposes are achieved through one machine, regional oil extraction is achieved, and energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of oil production equipment, in particular to a wheel-type energy-saving oil pumping unit. Background Art

[0002] In the daily production of oil fields, single-well four-link pumping units have always occupied a dominant position in rod pump oil production equipment. In the prior art, conventional pumping units have many transmission links and low system efficiency; there are invalid loads such as sucker rods and counterweights during operation, and the alternating amplitude of the effective load is large, and the motor utilization rate is low; in areas where oil wells are relatively densely distributed, it is still necessary to set up a separate pumping unit for each well, which has high working costs. Therefore, in view of the above shortcomings, a rotary disc type energy-saving pumping unit is proposed. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a wheel-type energy-saving oil pumping unit, which solves the problems of multiple transmission links in the oil pumping unit, low system efficiency, large invalid load, large alternating amplitude of effective load, and low motor utilization.

[0004] (II) Technical solution In order to solve the above problems, the present invention provides a wheel-type energy-saving oil pumping unit, comprising: A frame and a wheel disc; a wheel disc is provided above the frame; a round steel ball is provided on the top of the frame, the wheel disc is round, a concave sliding shoe with an opening downward is provided in the middle of the wheel disc, the concave surface of the concave sliding shoe is hemispherical and matches the round steel ball; the wheel disc is installed on the round steel ball through the concave sliding shoe, and the wheel disc can rotate freely with the round steel ball as the center; a counterweight mechanism is provided on the edge of the upper surface of the wheel disc, and the wheel disc rotates around the round steel ball through the movement of the counterweight mechanism on the wheel disc, and there is always a point at the lowest position; a horizontally placed supporting disc is provided below the round steel ball on the frame, and there is always a point on the outer edge of the supporting disc in the process of rotation; a plurality of traction mechanisms are evenly provided around the lower surface of the wheel disc, 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 disc.

[0005] Preferably, the wheel disc is provided with two semicircular spherical sliding shoes to fix the wheel disc on the round steel ball.

[0006] Preferably, the spherical sliding shoe is connected to the wheel disc via bolts.

[0007] Preferably, the traction mechanism comprises a lifting ring and a steel wire rope, the lifting ring is mounted on the wheel disc, one end of the steel wire rope is connected to the lifting ring and the other end is connected to the oil well.

[0008] Preferably, the counterweight mechanism includes an electric walker and an annular guide rail; the annular guide rail is annular and is arranged concentrically with the wheel disc, and the electric walker is installed on the annular guide rail.

[0009] Preferably, the cross-section of the annular guide rail is I-shaped.

[0010] Preferably, the electric walker moves at a constant speed on the annular guide rail, and the weight of the electric walker drives the wheel plate to rotate around the circular steel ball synchronously with the electric walker.

[0011] Preferably, a plurality of openings are evenly arranged on the wheel disc.

[0012] (III) Beneficial effects The disc-type energy-saving oil pumping unit provided by the present invention has fewer transmission links, higher system efficiency and higher motor utilization rate through the cooperation of spherical sliding shoes and round steel balls and a counterweight mechanism on the disc; the structure of the unit is simple, the ineffective load is small, the alternating stress variation amplitude generated by the counterweight mechanism as an effective load during operation is small, and the service life of the unit is long; at the same time, by arranging a plurality of traction mechanisms on the disc, a plurality of wells evenly distributed within a certain range around the unit can be driven to pump oil at the same time, and the load changes of the oil wells are automatically balanced to achieve multiple uses of one machine, regional oil production, and reduced energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the rotary disc type energy-saving oil pumping unit of the present invention; Figure 2 It is a side view of the rotary disc type energy-saving oil pumping unit of the present invention; Figure 3 It is a schematic diagram of the frame structure of the rotary disc type energy-saving oil pumping unit of the present invention; Figure 4 It is a schematic cross-sectional view of a wheel disc of the wheel disc type energy-saving oil pumping unit of the present invention; Figure 5 It is a schematic diagram of the spherical sliding shoe of the wheel-type energy-saving oil pumping unit of the present invention.

[0014] Among them, 1. frame; 2. wheel; 3. spherical sliding shoe; 4. bolts; 5. electric walking device; 6. wire rope; 7. round steel ball; 8. supporting disc; 9. concave sliding shoe; 10. ring guide rail; 11. lifting ring. Implementation

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by “upper”, “lower”, “inside”, “outside”, “top”, “bottom”, etc. are all based on the orientations or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] like Figure 1-5 As shown, the present invention provides a wheel-type energy-saving oil pumping unit, which specifically includes: a frame 1 and a wheel 2; the frame 1 is installed on the construction site, and during the working process, it serves as the main body of the bearing device itself and fixes each component in the working position. A round steel ball 7 is provided at the top of the frame 1 for installation with the wheel 2.

[0018] The frame 1 is tower-shaped, having good stability and load-bearing capacity, and the tower-shaped structure is convenient for installing the steel ball 7 .

[0019] like Figure 1-2 As shown, the wheel disc 2 is circular, and a concave sliding shoe 9 is arranged in the middle of the wheel disc 2. The concave surface of the concave sliding shoe 9 is hemispherical and the concave surface is downward. The wheel disc 2 is installed on the frame 1. When installing, the concave sliding shoe 9 matches the circular steel ball 7, and the upper half of the circular steel ball 7 is inserted into the concave sliding shoe 9. During operation, the wheel disc 2 can rotate in all directions with the circular steel ball 7 as the center. Two spherical sliding shoes 3 are arranged under the wheel disc 2 to fix the circular steel ball 7 and the wheel disc 2.

[0020] Among them, the wheel disc 2 is evenly provided with a plurality of openings. After the openings are provided, the self-weight of the wheel disc 2 is evenly distributed and the self-weight is reduced, the useless load of the device is small, the energy waste of the device during operation is reduced, and the working efficiency of the device is improved. At the same time, the design of the openings can prevent rain and snow from being retained on the wheel disc 2 in rainy and snowy weather and affecting the normal operation of the device, thereby improving the practicality of the device and reducing the impact of the external environment on the device.

[0021] like Figure 4 and Figure 5As shown, the spherical sliding shoe 3 is a semicircular ring, and the interior of the spherical sliding shoe 3 is a spherical surface that matches the circular steel ball 7. After the circular steel ball 7 and the concave sliding shoe 9 are installed, the two spherical sliding shoes 3 are buckled from the bottom of the wheel disc 2 to the bottom of the circular steel ball 7 and are connected to the wheel disc 2 through bolts 4. At this time, the spherical sliding shoe 3 and the concave sliding shoe 9 are matched to form a spherical inner cavity and the circular steel ball 7 is covered in the spherical inner cavity. The spherical surface inside the spherical inner cavity matches the circular steel ball 7. Without affecting the free rotation of the wheel disc 2, the positions of the circular steel ball 7 and the wheel disc 2 are relatively fixed, preventing the wheel disc 2 from sliding off the circular steel ball 7 due to excessive rotation angle or external force during operation, thereby improving the safety of the device.

[0022] In the present invention, a counterweight mechanism is provided on the wheel disc 2, which drives the wheel disc 2 to rotate periodically. When the wheel disc 2 rotates, there is always a point at the lowest point due to the gravity of the counterweight mechanism.

[0023] The counterweight mechanism includes an electric walker 5 and an annular guide rail 10. The annular guide rail 10 is annular and is mounted on the wheel disc 2 and arranged concentrically with the wheel disc 2. The electric walker 5 is mounted on the annular guide rail 10. Under the action of the motor, the electric walker 5 performs periodic circular motion along the guide rail 10. Due to the gravity of the electric walker 5, during operation, the electric walker 5 presses the wheel disc 2 downward to deflect the wheel disc toward the direction of the electric walker 5. In order to increase the effect of the electric walker 5 deflecting the wheel disc, the diameter of the annular guide rail 10 is usually the same as that of the wheel disc 2.

[0024] like Figure 4 As shown, the cross-section of the annular guide rail 10 is an "I" shape, and the grooves on both sides of the I-shaped guide rail can conveniently 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 be used as tracks for the electric walker 5. There is no need to process the annular guide rail 10, thereby reducing the workload.

[0025] In the present invention, multiple traction mechanisms are evenly arranged under the wheel disc 2, one end of the traction mechanism is connected to the bottom of the wheel disc 2, and the other end is connected to the oil pumping well. During the working process, under the action of the electric walker 5, each point at the edge of the wheel disc 2 performs a periodic lifting movement, and the traction mechanism drives the oil pump in the oil well to operate as the connection with the wheel disc 2 is lifted, thereby driving the oil well to work.

[0026] Among them, each traction mechanism includes a lifting ring 11 and a wire rope 6, and the lifting ring 11 is evenly placed on the edge of the bottom surface of the wheel disc 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 walker 5, when one side of the wheel disc 2 drops to the lowest point, the lifting ring 11 and the wire rope 6 drop together with the wheel disc 2. When one side of the wheel disc 2 rises, the lifting ring 11 and the wire rope 6 are lifted together with the wheel disc 2. With the periodic rotation of the wheel disc 2, the wire rope 6 drives the oil pump in the oil well to move periodically, thereby driving the oil well to pump oil.

[0027] It should be noted that in order to ensure the balance of the wheel disc 2, the number of the traction mechanisms is at least two. By evenly arranging a plurality of traction mechanisms on the edge of the wheel disc 2, it is possible to achieve simultaneous pumping of multiple evenly distributed oil wells by only one pumping unit within a certain range. During the process, the load changes of each oil well can be adjusted to achieve mutual balance, thereby realizing multiple uses of one machine and regional oil production, saving construction costs. At the same time, since only one pumping unit is required to work, the purpose of saving energy consumption is achieved, thereby improving the economy of the device.

[0028] like Figure 3 As shown, a supporting disc 8 is provided on the frame 1, and the supporting disc 8 is below the round steel ball 7. During the rotation of the wheel disc 2, when the lowest point of the wheel disc 2 meets the working condition of the oil pump in the oil pumping unit at its corresponding position, the wheel disc 2 contacts a point on the edge of the supporting disc 8, and the force exerted on the wheel disc 2 is shared to the frame 1 through the supporting disc 8. At the same time, the supporting disc 8 limits the wheel disc 2 to prevent the wheel disc 2 from sinking at too large an angle and colliding with the frame 1, causing damage to the device structure.

[0029] In order to maintain the stability of the device, the weight of the electric walker 5 is usually adjusted to ensure that the wheel disc 2 always has a point in contact with the support disc 8 during operation. At the same time, when the wheel disc 2 is punched, an annular area is left at the corresponding position that can contact the support wheel disc 8, which is used to contact the support disc 8 during operation.

[0030] During the actual working process, the electric traveler 5 performs unidirectional uniform motion along the annular guide rail 10. Under the action of the electric traveler 5 and the gravity of the wheel disc 2, the wheel disc 2 deflects to one side and the deflection speed is consistent with the speed of the electric traveler 5. At this time, the lowest point of the wheel disc 2 changes with the position of the electric traveler 5. At the same time, the point on the wheel disc 2 that is symmetrical to the center of the electric traveler 5 is at the highest point, driving the oil pump to rise. While the wheel disc 2 performs periodic deflection with the electric traveler 5, the traction devices connected to the wheel disc 2 drive the oil pump in the corresponding oil well to perform periodic action, so that one pumping unit can pump oil from multiple oil wells at the same time.

[0031] The disc-type energy-saving oil pumping unit provided by the present invention has fewer transmission links, high system efficiency, less invalid load during operation, small alternating amplitude of effective load, high motor utilization rate, and can simultaneously produce oil from multiple oil wells evenly distributed in an area. The specific operation process of the device is as follows: Step 1: Install the device at the predetermined installation location according to its structure.

[0032] Step 2: According to the number and location of the oil wells to be connected, evenly install the traction mechanisms on the wheel disc and connect the steel wire rope of each traction mechanism to the oil pump in the corresponding oil well.

[0033] Step 3, start the electric walker, and the electric walker performs unidirectional uniform periodic motion on the circular guide rail. At this time, due to the effect of the electric walker's own gravity, during the walking process, the position of the electric walker on the wheel disc is always the lowest point. While the electric walker performs periodic motion, the wheel disc rotates around the circular steel ball with the same period as the electric walker. During the rotation process, there is always a point on the wheel disc that contacts a point on the edge of the supporting disc to transfer the force borne by the wheel disc to the frame; when a point on the wheel disc is at the highest point, the traction mechanism at this point drives the corresponding oil pump in the oil well to rise, and when a point on the wheel disc is at the lowest point, the traction mechanism at this point drives the corresponding oil pump in the oil well to sink, and the cycle is repeated to achieve simultaneous oil pumping for each oil well connected to the wheel disc.

[0034] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary disc type energy-saving oil pumping unit, characterized in that: include: A frame (1) and a wheel disc (2); the wheel disc (2) is provided above the frame (1); a round steel ball (7) is provided at the top of the frame (1); the wheel disc (2) is round; a concave sliding shoe (9) with an opening facing downward is provided in the middle of the wheel disc (2); the concave surface of the concave sliding shoe (9) is hemispherical and matches the round steel ball (7); the wheel disc (2) is mounted on the round steel ball (7) via the concave sliding shoe (9); the wheel disc (2) can rotate freely with the round steel ball (7) as the center; the edge of the upper surface of the wheel disc (2) A counterweight mechanism is provided, and the movement of the counterweight mechanism on the wheel disc (2) causes the wheel disc (2) to rotate around the circular steel ball (7) and always have a point at the lowest position; a horizontally placed supporting disc (8) is provided below the circular steel ball (7) on the frame (1), and during the rotation of the wheel disc (2), there is always a point in contact with a point on the outer edge of the supporting disc (8); a plurality of traction mechanisms are evenly provided around the lower surface of the wheel disc (2), and the other end of the traction mechanism is connected to the oil well, and drives the oil well to work through the wheel disc (2).

2. A disc type energy-saving oil pumping unit according to claim 1, characterized in that: The wheel disc (2) is provided with two semicircular spherical sliding shoes (3) for fixing the wheel disc (2) on the circular steel ball (7).

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

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

5. The disc type energy-saving oil pumping unit according to claim 1, characterized in that: The counterweight mechanism comprises an electric walker (5) and an annular guide rail (10); the annular guide rail (10) is annular and is arranged concentrically with the wheel disc (2); the electric walker (5) is mounted on the annular guide rail (10).

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

7. The disc type energy-saving oil pumping unit according to claim 5, characterized in that: The electric walker (5) moves at a constant speed on the annular guide rail (10), and the weight of the electric walker (5) drives the wheel disc (2) to perform a deflection movement around the circular steel ball (7) in synchronization with the electric walker (5).

8. The disc-type energy-saving oil pumping unit according to claim 1, characterized in that: The wheel disc (2) is evenly provided with a plurality of openings.

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