Stabilizing device for end part of walking beam of oil pumping unit

Abstract

The invention relates to the field of oil pumping units, in particular to an oil pumping unit walking beam end stabilizing device which comprises an oil pumping unit walking beam and a stabilizing device. The horse head is arranged at the end part of a walking beam of the pumping unit; the buffering component is rotationally meshed with the horse head and is in sliding connection with the horse head; and a suspension rope assembly. The two energy absorption assemblies work synchronously, the energy absorption effect is better, operation stability is facilitated, the up-down swing impact force of the horse head is large, when the horse head operates towards the stroke end point of the horse head, an arc-shaped sliding groove extrudes a sliding column, the horse head is prevented from falling off, the horse head is prevented from falling off, and the horse head is prevented from falling off. And the sliding plate moves up and down to drive the spring to compress and absorb energy, so that the impact force of the horse head is reduced, the running stability of the horse head is improved, and the problem of stability of the end part of the walking beam of the beam-pumping unit is solved.

Description

Technical Field

[0001] The present invention relates to the field of pumping units, and particularly to a stability device for the end of the walking beam of a pumping unit. Background Art

[0002] The basic characteristics of the beam pumping unit are simple structure and easy manufacturing. Especially, it can operate all-weather in the oil field for a long time with reliable use. The component connecting the rope at the end of the walking beam of the pumping unit is the "pony head". The pony head is connected to the hanger on the oil well through the rope, and then drives the oil pump in the well to work. The pumping unit converts the rotation of the motor into the up-and-down swing of the pony head. The pony head is relatively heavy, so the impact force generated is relatively large, especially at the end points of the stroke of the pony head. Such an impact force often easily causes fatigue damage or fracture of the rope, and the resulting economic losses and the difficulty of repair cannot be underestimated. Based on the above background, it is imperative to explore solutions to the problem of the stability of the end of the walking beam of the beam pumping unit. Summary of the Invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a stability device for the end of the walking beam of a pumping unit to solve the problem of the running stability of the pony head of the pumping unit.

[0004] The technical solution for the present invention to solve the above technical problems is as follows: A stability device for the end of the walking beam of a pumping unit, the stability device includes: A walking beam of a pumping unit; A pony head installed at the end of the walking beam of the pumping unit; A buffer component that is rotationally engaged and slidably connected to the pony head; and A suspension rope assembly; The buffer component is connected to the suspension rope assembly through a traction rope, and the end of the traction rope is connected to the well hanger.

[0005] Further, end face teeth are provided on the outer circular surface of the pony head; An arc-shaped chute is formed near the outer side surface of the pony head; The end face teeth are engaged with the buffer component, and the arc-shaped chute is slidably connected to the buffer component.

[0006] Further, the buffer component includes: Two support column assemblies; and A gear disk rotatably installed between the two support column assemblies; The two support column assemblies are respectively slidably connected to the arc-shaped chute through two energy absorption assemblies; The gear disk is engaged with the end face teeth.

[0007] Further, the energy absorption assembly includes: An installation cylinder column with a notch installed at the upper end of the support column assembly. Two springs are installed in the installation cylinder column, and a sliding plate is installed between the two springs; A sliding column is arranged on the sliding plate; The upper ends of the two installation cylinder columns are fixedly connected by a cross beam; The two sliding columns are respectively slidably connected in the arc-shaped sliding grooves.

[0008] Furthermore, each support column assembly further includes: A wheel assembly fixed on the ground; and A support column rolling in the wheel assembly; The installation cylinder column is fixed at the upper end of the support column.

[0009] Furthermore, the wheel assembly includes: A wheel track box fixed on the ground; and Several wheels rolling in the wheel track box; Several of the wheels are installed at the bottom of the support column, and the bottom of the support column is slidably connected to the upper cover of the wheel track box.

[0010] Furthermore, a rope winding groove is formed along the radial direction on the curved surface of the gear disk. One end of the traction rope is fixed in the rope winding groove, and the other end passes through the suspension rope assembly and is fixedly connected to the oil well suspension connector.

[0011] Furthermore, the suspension rope assembly includes: A support frame; and A suspension rope device fixed on the support frame; A damping wheel assembly is slidably installed on the suspension rope device.

[0012] Furthermore, the damping wheel assembly includes: A compression spring installed in the suspension rope device; A sliding frame abutting against the compression spring; and A pulley rotatably installed on the sliding frame; The traction rope is wound around the pulley.

[0013] Furthermore, the end of the suspension rope device is open, and slide rails are arranged inside both side walls; Rounded corners are formed on both sides of the slide rails; Both sides of the sliding frame are respectively slidably installed in the two slide rails, and the compression spring is installed between the four rounded corners.

[0014] The beneficial effects of the present invention are: 1. The present invention synchronizes the operation of two energy-absorbing components, resulting in better energy absorption effect and facilitating the stability of operation. The impact force of the walking beam's up-and-down swing is very large. When the walking beam moves towards its stroke end point, the arc-shaped chute squeezes the sliding column, thereby driving the sliding plate to move up and down. The up-and-down movement of the sliding plate will drive the spring to compress and absorb energy, reducing the impact force of the walking beam and enhancing the stability of the walking beam's operation, thus solving the problem of the stability of the end of the walking beam of the beam pumping unit.

[0015] 2. By setting up the wheel assembly, it works in cooperation with the energy-absorbing component to prevent the sliding plate and the arc-shaped chute from getting stuck in motion, and the movement of the wheel assembly can absorb part of the impact force of the walking beam, achieving a further stabilizing effect.

[0016] 3. By setting up the "movable pulley type" suspension rope assembly, when not considering the problem of the angle of the traction rope, the force borne by the traction rope is only half of the conventional load. However, considering the influence of the spring resistance on the damping wheel assembly, the pulley does not save half of the force. Therefore, the load force of the traction rope will exceed half of the conventional load, but it is still sufficient to ensure the safety of the traction rope and save energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall effect diagram of the present invention used in cooperation with the pumping unit; Figure 2 is the schematic diagram of the overall structure decomposition of the present invention; Figure 3 is the schematic diagram of the partial structure decomposition of the present invention Figure 1 ; Figure 4 is the schematic diagram of the partial structure decomposition of the present invention Figure 2 ; Figure 5 is the schematic diagram of the overall structure of the suspension rope assembly of the present invention; Figure 6 is the schematic diagram of the partial structure decomposition of the present invention Figure 3 ; Figure 7 is the schematic diagram of the overall structure decomposition of the damping wheel assembly of the present invention; Figure 8 is the top view of the suspension rope device of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: 1. Pumping unit walking beam; 2. Walking beam; 21. End face teeth; 22. Arc-shaped chute; 3. Buffer component; 31. Support column assembly; 311. Installation cylinder column; 312. Spring; 313. Sliding plate; 314. Sliding column; 315. Support pillar; 32. Energy-absorbing component; 33. Wheel assembly; 331. Wheel track box; 332. Wheel; 4. Suspension rope assembly; 41. Support frame; 42. Suspension rope device; 421. Slide rail; 422. Rounded corner; 43. Damping wheel assembly; 431. Compression spring; 432. Sliding frame; 433. Pulley; 5. Traction rope; 6. Oil well suspension connector; 7. Gear disc; 71. Rope winding groove. Embodiment

[0018] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0019] The present invention provides the following preferred embodiments: Embodiment

[0020] As shown in the reference Figures 1 to 8 A stabilizing device for the end of the walking beam of a pumping unit, the stabilizing device comprising: Walking beam 1 of the pumping unit; The pony head 2 installed at the end of the walking beam 1 of the pumping unit; A buffer member 3 that is rotationally engaged and slidably connected to the pony head 2; and Suspension rope assembly 4; The buffer member 3 is connected to the suspension rope assembly 4 through a traction rope 5, and the end of the traction rope 5 is connected to an oil well suspension connector 6.

[0021] The buffer member 3 is rotationally engaged with the pony head 2. The purpose of this setting is to convert the swing of the pony head 2 into the rotation of the gear disc 7, stabilizing the tension borne by the traction rope 5; in addition, the buffer member 3 is also slidably connected to the arc-shaped chute 22 on the pony head 2 through an energy absorption assembly 32. When the pony head 2 reaches the stroke end point, the end of the arc-shaped chute 22 will squeeze the energy absorption assembly 32, causing the spring 312 inside the energy absorption assembly 32 to deform, so as to achieve the purpose of absorbing the impact force of the pony head 2.

[0022] Furthermore, a face gear 21 is provided on the outer circular surface of the pony head 2; An arc-shaped chute 22 is provided near the outer side surface of the pony head 2; The face gear 21 is engaged with the buffer member 3, and the arc-shaped chute 22 is slidably connected to the buffer member 3.

[0023] The effect of the sliding connection between the arc-shaped chute 22 and the buffer member 3 is that when the pony head 2 swings up and down, the arc-shaped chute 22 on the pony head 2 makes a reciprocating circular motion around the fulcrum of the walking beam 1 of the pumping unit. When the pony head 2 is about to reach its stroke end point during the process, one end of the arc-shaped chute 22 will contact the buffer member 3, and then the buffer member 3 absorbs the impact kinetic energy of the pony head 2, reducing the impact force of the pony head 2.

[0024] Furthermore, the buffer member 3 includes: Two support column assemblies 31; and A gear disc 7 rotatably mounted between the two support column assemblies 31; The two support column assemblies 31 are respectively slidably connected to the arc-shaped chute 22 through two energy absorption assemblies 32; The gear disc 7 meshes with the end face teeth 21.

[0025] Furthermore, the energy absorption assembly 32 includes: An installation cylinder column 311 with a notch installed at the upper end of the support column assembly 31. Two springs 312 are installed inside the installation cylinder column 311, and a sliding plate 313 is installed between the two springs 312; A sliding column 314 is arranged on the sliding plate 313; The upper ends of the two installation cylinder columns 311 are fixedly connected by a cross beam; The two sliding columns 314 are respectively slidably connected inside the arc-shaped chute 22.

[0026] The two energy absorption assemblies 32 work synchronously, with a better energy absorption effect and beneficial to the stability of operation. The impact force of the up and down swing of the donkey head 2 is very large. When the donkey head 2 moves towards its stroke end point, the arc-shaped chute 22 squeezes the sliding column 314, thereby driving the sliding plate 313 to move up and down. The up and down movement of the sliding plate 313 will drive the spring 312 to compress and absorb energy to reduce the impact force of the donkey head 2.

[0027] Furthermore, each support column assembly 31 further includes: A wheel assembly 33 fixed to the ground; and A support column 315 rotatably arranged inside the wheel assembly 33; The installation cylinder column 311 is fixed to the upper end of the support column 315.

[0028] Furthermore, the wheel assembly 33 includes: A wheel track box 331 fixed to the ground; and Several wheels 332 rolling inside the wheel track box 331; Several of the wheels 332 are installed at the bottom of the support column 315, and the bottom of the support column 315 is slidably connected to the upper cover of the wheel track box 331.

[0029] During the process of the arc-shaped chute 22 squeezing the sliding column 314 to move, since the arc-shaped chute 22 is a circular track, the buffer member 3 will have a horizontal displacement to avoid jamming. Therefore, the wheel assembly 33 is considered to be designed to decompose the unnecessary movement of the buffer member 3.

[0030] Further, a rope winding groove 71 is formed on the curved surface of the gear disk 7 along the radial direction. One end of the towing rope 5 is fixed in the rope winding groove 71, and the other end passes through the suspension rope assembly 4 and is fixedly connected to the oil well suspension connector 6.

[0031] Further, the suspension rope assembly 4 includes: A support frame 41; and A suspension rope device 42 fixed on the support frame 41; A damping wheel assembly 43 is slidably mounted on the suspension rope device 42.

[0032] In order to achieve the purpose of saving effort, extending the service life of the towing rope 5 and ensuring the reliability of the work of the towing rope 5, we add the suspension rope assembly 4. Taking the right side of the pumping unit as the observation point, when the walking beam 2 swings upward, the gear disk 7 rotates clockwise, and then winds up the towing rope 5. Here, it should be noted that the winding direction of the towing rope 5 will affect whether the towing rope 5 is wound or relaxed when the gear rotates; if the towing rope 5 is wound clockwise, when the gear disk 7 rotates clockwise, it will drive the towing rope 5 to relax; in this embodiment, we default that the towing rope 5 is wound counterclockwise. Therefore, as mentioned above: the gear disk 7 rotates clockwise, and then winds up the towing rope 5. The winding of the towing rope 5 drives the oil well suspension connector 6 to move upward, and then achieves the purpose of pumping oil. Because there is a labor-saving damping wheel assembly 43, it can work with a load less than the load force.

[0033] Further, the damping wheel assembly 43 includes: A compression spring 431 installed in the suspension rope device 42; A sliding frame 432 abutted against the compression spring 431; and A pulley 433 rotatably mounted on the sliding frame 432; The towing rope 5 is wound around the pulley 433.

[0034] The reason why the damping wheel assembly 43 can save effort comes from the pulley 433. The pulley 433 can move up and down with the sliding frame 432, that is, a "movable pulley 433" structure is formed. When not considering the angle problem of the towing rope 5, the force borne by the towing rope 5 is only half of the conventional load. However, considering the influence of the resistance of the spring 312 on the damping wheel assembly 43, the pulley 433 cannot save half of the effort. Therefore, the load force of the towing rope 5 will exceed half of the conventional load, but it is already sufficient to ensure the safety of the towing rope 5 and save energy consumption.

[0035] Further, it is characterized in that the end of the suspension rope device 42 is open, and slide rails 421 are provided inside both side walls; Rounded corners 422 are provided on both sides of the slide rails 421; Both sides of the sliding frame 432 are slidably installed in the two slide rails 421 respectively, and the compression spring 431 is installed between the four rounded corners 422.

[0036] The compression spring 431 moves along with the movement of the sliding frame 432. Affected by the enclosure of the rounded corners 422, the compression spring 431 can only be compressed or restored inside the suspension device 42. Embodiment

[0037] Considering the floor area and production cost of the equipment, a simple connection method is introduced here, that is, the towing rope 5 can be directly connected to the oil well suspension connector 6 without passing around the suspension assembly 4. The reciprocating rotation of the gear disk 7 is driven by the swing of the walking beam 2, which can drive the oil well suspension connector 6 to make a reciprocating up and down movement to achieve the purpose of pumping oil. In this way, the floor area and cost of the entire equipment can be saved; in addition, by changing the radius of the gear disk 7, specifically, by changing the radius of the rope winding groove 71, the length of the towing rope 5 being wound or released can be changed, and thus the purpose of changing the stroke of the pumping unit can be achieved.

[0038] Working principle: The buffer member 3 is rotationally engaged with the donkey head 2. The purpose of this setting is to convert the swing of the donkey head 2 into the rotation of the gear disc 7, stabilizing the tension borne by the towing rope 5. Additionally, the buffer member 3 is slidably connected to the arc-shaped chute 22 on the donkey head 2 through the energy absorption component 32. When the donkey head 2 reaches the stroke end point, the end of the arc-shaped chute 22 will squeeze the energy absorption component 32, causing the spring 312 inside the energy absorption component 32 to deform, so as to achieve the purpose of absorbing the impact force of the donkey head 2. The effect of the slidable connection between the arc-shaped chute 22 and the buffer member 3 is that when the donkey head 2 swings up and down, the arc-shaped chute 22 on the donkey head 2 makes a reciprocating circular motion around the fulcrum of the pumping unit's walking beam 1. When the donkey head 2 is about to reach its stroke end point during the process, one end of the arc-shaped chute 22 will contact the buffer member 3, and then the buffer member 3 absorbs the impact kinetic energy of the donkey head 2, reducing the impact force of the donkey head 2. The two energy absorption components 32 work synchronously, with a better energy absorption effect and being beneficial to the stability of operation. The impact force of the up and down swing of the donkey head 2 is very large. When the donkey head 2 moves towards its stroke end point, the arc-shaped chute 22 squeezes the sliding column 314, and then drives the sliding plate 313 to move up and down. The up and down movement of the sliding plate 313 will drive the spring 312 to compress and absorb energy, so as to reduce the impact force of the donkey head 2. In order to achieve the purposes of saving effort, extending the service life of the towing rope 5 and ensuring the reliability of the work of the towing rope 5, we add a suspension rope assembly 4. Taking the right side of the pumping unit as the observation point, when the donkey head 2 swings upward, the gear disc 7 rotates clockwise, and then winds up the towing rope 5. It should be noted here that the winding direction of the towing rope 5 will affect whether the towing rope 5 is wound up or relaxed when the gear rotates. If the towing rope 5 is wound clockwise, when the gear disc 7 rotates clockwise, it will drive the towing rope 5 to relax. In this embodiment, we default that the towing rope 5 is wound counterclockwise. Therefore, as mentioned above: the gear disc 7 rotates clockwise, and then winds up the towing rope 5. The winding up of the towing rope 5 drives the oil well suspension connector 6 to move upward, and then achieves the purpose of pumping oil. Because there is a labor-saving damping wheel assembly 43, it can work with a force less than the load force.

[0039] The beneficial effects of the present invention are specifically embodied as follows. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A stabilizer device for the end of the walking beam of a pumping unit, characterized in that, The stabilizing device includes: The walking beam of the pumping unit (1); The pony head (2) installed at the end of the walking beam of the pumping unit (1); A buffer component (3) that is rotationally engaged and slidably connected to the pony head (2); and A suspension rope assembly (4); The buffer component (3) is connected to the suspension rope assembly (4) through a traction rope (5), and the end of the traction rope (5) is connected to an oil well suspension connector (6).

2. The stabilizing device for the end of the walking beam of a pumping unit according to claim 1, characterized in that End face teeth (21) are provided on the outer circumferential surface of the pony head (2); An arc-shaped sliding groove (22) is provided near the outer side surface of the pony head (2); The end face teeth (21) are engaged with the buffer component (3), and the arc-shaped sliding groove (22) is slidably connected to the buffer component (3).

3. A stabilizer device for the end of the walking beam of a pumping unit according to claim 2, characterized in that, The buffer component (3) includes: Two support column assemblies (31); and A gear disk (7) rotatably installed between the two support column assemblies (31); The two support column assemblies (31) are respectively slidably connected to the arc-shaped sliding groove (22) through two energy absorption assemblies (32); The gear disk (7) is engaged with the end face teeth (21).

4. A stabilizer device for the end of the walking beam of a pumping unit according to claim 3, characterized in that, The energy absorption assembly (32) includes: A notched mounting cylinder column (311) installed at the upper end of the support column assembly (31), two springs (312) are installed in the mounting cylinder column (311), and a sliding plate (313) is installed between the two springs (312); A sliding column (314) is provided on the sliding plate (313); The upper ends of the two mounting cylinder columns (311) are fixedly connected through a cross beam; The two sliding columns (314) are respectively slidably connected in the arc-shaped sliding groove (22).

5. The stabilizing device for the end of the walking beam of a pumping unit according to claim 4, characterized in that, Each support column assembly (31) further includes: A wheel assembly (33) fixed to the ground; and A support column (315) rotatably arranged in the wheel assembly (33); The mounting cylinder column (311) is fixed to the upper end of the support column (315).

6. The stabilizing device for the end of the walking beam of a pumping unit according to claim 5, characterized in that, The wheel assembly (33) includes: A wheel track box (331) fixed to the ground; and A plurality of wheels (332) rolling in the wheel track box (331); The plurality of wheels (332) are installed at the bottom of the support column (315), and the bottom of the support column (315) is slidably connected to the upper cover of the wheel track box (331).

7. The stabilizing device for the end of the walking beam of a pumping unit according to claim 6, characterized in that, A rope winding groove (71) is provided on the curved surface of the gear disk (7) along the radial direction, one end of the traction rope (5) is fixed in the rope winding groove (71), and the other end passes through the suspension rope assembly (4) and is fixedly connected to the oil well suspension connector (6).

8. A stabilizer device for the end of the walking beam of a pumping unit according to claim 7, characterized in that, The suspension rope assembly (4) includes: A support frame (41); and A suspension rope device (42) fixed to the support frame (41); A damping wheel assembly (43) is slidably installed on the suspension rope device (42).

9. The stabilizing device for the end of the walking beam of a pumping unit according to claim 8, wherein, The damping wheel assembly (43) includes: A compression spring (431) installed in the suspension rope device (42); A sliding frame (432) abutted against the compression spring (431); and A pulley (433) rotatably installed on the sliding frame (432); The traction rope (5) is wound around the pulley (433).

10. A stable device for the end of the walking beam of a pumping unit according to claim 9, characterized in that, The end of the suspension rope device (42) is open, and slide rails (421) are provided inside the two side walls; Both sides of the sliding rail (421) are rounded (422). Both sides of the sliding frame (432) are respectively slidably installed in the two sliding rails (421), and the compression spring (431) is installed between the four rounded corners (422).

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