Oil pumping unit swing balancing device

Abstract

The utility model relates to the field of oil pumping unit balance blocks, and discloses an oil pumping unit swing balancing device which comprises an oil pumping unit crank, balance blocks are vertically connected to the two sides of the oil pumping unit crank in a sliding mode, and clamping blocks are fixedly connected to the inner sides of the balance blocks. Clamping structures used for limiting the clamping blocks are movably connected to the front face and the back face of the pumping unit crank correspondingly, each clamping structure comprises a movable rod, the movable rods are movably connected to the outer side of the pumping unit crank, gears are fixedly connected to the surfaces of the movable rods, and the movable rods and the gears can guarantee fixation of the clamping blocks; the surface of the gear is meshed with the inner side of the clamping block, and the front face and the back face of the oil pumping unit crank are each fixedly provided with a movable stirring structure used for limiting the clamping structure. According to the utility model, the clamping structures are clamped with the clamping blocks, so that the balance blocks are fixed on the two sides of the crank of the oil pumping unit, and the balance blocks and the crank of the oil pumping unit can be conveniently fixed.

Description

Technical Field

[0001] The utility model relates to the field of oil pumping unit balancing blocks, in particular to an oil pumping unit swing balancing device. Background Art

[0002] The oil pump is a kind of machine equipment for oil extraction, commonly known as "kowtow machine". The oil pump is the most important lifting equipment in the rod pumping system. Depending on whether there is a walking beam, it can be divided into walking beam type oil pump and no walking beam type oil pump.

[0003] In oil production, the pumping unit is a commonly used mechanical oil production equipment in oil fields. In order to reduce the motor power and the output torque of the reducer and reduce the stress of each transmission component of the pumping unit, it is necessary to add a balancing weight to the crank or the walking beam of the pumping unit to balance the oil well load. After searching, the Chinese patent announcement number: CN212535619U discloses a balancing block fixing structure for a pumping unit, including a crank, and balancing blocks are fixed on both sides of the crank. The crank is provided with T-slots and teeth on both sides, and the balancing block is provided with a through hole and a polygonal positioning block mounting groove. The balancing block is fixed by the balancing block. The bolts are fixed on both sides of the crank, one end of the balancing block fixing bolt is arranged in the T-slot, and the other end passes through the through hole on the balancing block and is fixed by the balancing block fixing nut; a positioning block is installed in the positioning block mounting groove, the positioning block is adapted to the positioning block mounting groove, and teeth are arranged on one side of the positioning block, and the positioning block and the crank cooperate through the teeth. The utility model can effectively improve the reliability of the connection between the balancing block and the crank, can firmly fix the pumping unit balancing block on the pumping unit crank, can prevent the pumping unit balancing block from sliding and displacing, ensure the normal operation of the oil well machine, and avoid personal injury accidents and economic losses.

[0004] The above-mentioned prior art solution has the following defects. In the above-mentioned technical solution, the pump crank and the balance block are fixed by rotating multiple studs and nuts. The fixation is cumbersome and not fast. There is no special moving mechanism when the balance block is fixed to the pump crank. Since the balance block weighs several tons, it is generally manually adjusted by prying the balance block with a crowbar. The adjustment accuracy cannot be controlled and it is not fast. Therefore, a pump swing balancing device is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a pumping unit swing balancing device, which aims to improve the problems in the prior art of complicated fixing of the pumping unit crank and the balancing block, and inconvenient fixing and precise adjustment of the balancing position of the balancing block.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pumping unit swing balancing device comprises a pumping unit crank, both sides of the pumping unit crank are vertically slidably connected with balancing blocks, the inner side of the balancing block is fixedly connected with a clamping block, the front and back sides of the pumping unit crank are movably connected with a clamping structure for limiting the clamping block, and the front and back sides of the pumping unit crank are fixedly installed with a movable toggle structure for limiting the clamping structure.

[0008] As a further description of the above technical solution:

[0009] The clamping structure includes a movable rod, which is movably connected to the outside of the pumping unit crank. A gear is fixedly connected to the surface of the movable rod, and the surface of the gear is meshed with the inner side of the clamping block. Hydraulic cylinder 1 is fixedly installed on the front and back sides of the pumping unit crank. A connecting plate is fixedly connected to the side of the hydraulic cylinder 1 away from the pumping unit crank. A hexagonal groove is provided on the front side of the movable rod, and a hexagonal block that is clamped with the hexagonal groove is fixedly connected to the inner side of the connecting plate.

[0010] As a further description of the above technical solution:

[0011] The movable toggle structure includes a second hydraulic cylinder, which is fixedly mounted on the outer side of the pumping unit crank, and a movable frame is fixedly mounted on the telescopic end of the second hydraulic cylinder. Storage grooves are provided on both sides of the movable frame, and a stabilizing rod is longitudinally fixedly connected to the interior of the storage groove, and a toggle block is fixedly connected to the surface of the stabilizing rod.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the storage groove is fixedly connected with a tightening spring sheet for tightening the toggle block, and the bottom of the tightening spring sheet is fixedly connected to the top of the toggle block.

[0014] As a further description of the above technical solution:

[0015] The interior of the connecting plate is longitudinally slidably connected with a limiting rod for limiting the connecting plate, and the inner side of the limiting rod is fixedly connected to the surface of the crank of the oil pump.

[0016] As a further description of the above technical solution:

[0017] The front and back sides of the pumping unit crank are both fixedly mounted with clamping blocks, which are located outside the clamping block and limit the clamping block.

[0018] As a further description of the above technical solution:

[0019] The outer side of the balancing block is fixedly connected with a sliding rod, and the sliding rod is slidably connected to the inside of the pressing block.

[0020] As a further description of the above technical solution:

[0021] The surface of the moving frame is slidably connected with a stabilizing block for limiting the moving frame, and the inner side of the stabilizing block is fixedly connected to the surface of the crank of the oil pump.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the balancing block is fixed on both sides of the crank of the oil pump by the clamping connection between the clamping structure and the clamping block, so that the balancing block and the crank of the oil pump are conveniently fixed.

[0024] 2. In the utility model, with the cooperation of the movable toggle structure and the clamping spring structure, the use position of the balancing block and the clamping block can be accurately adjusted to solve the problem that the adjustment accuracy of the balancing block on both sides of the pumping unit crank is difficult to control and the adjustment is inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a swing balancing device for an oil pumping unit proposed by the utility model;

[0026] Figure 2 It is a schematic diagram of the main cross-sectional structure of a movable toggle structure of a swing balancing device for an oil pumping unit proposed by the utility model;

[0027] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at center A;

[0028] Figure 4 The utility model is a three-dimensional structural schematic diagram of a clamping block of a swing balancing device for an oil pumping unit.

[0029] Legend:

[0030] 1. Pumping unit crank; 2. Balance block; 3. Clamping block; 4. Clamping structure; 41. Movable rod; 42. Gear; 43. Hydraulic cylinder one; 44. Connecting plate; 45. Hexagonal slot; 46. Hexagonal block; 5. Moving toggle structure; 51. Hydraulic cylinder two; 52. Moving frame; 53. Storage slot; 54. Stabilizing rod; 55. Toggle block; 6. Clamping spring; 7. Limiting rod; 8. Pressing block; 9. Sliding rod; 10. Stabilizing block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3 The utility model provides an embodiment: a pumping unit swing balancing device, including a pumping unit crank 1, both sides of the pumping unit crank 1 are vertically slidably connected with a balancing block 2, the inner side of the balancing block 2 is fixedly connected with a clamping block 3, the clamping block 3 can drive the balancing block 2 to clamp with a gear 42, so that the balancing block 2 is slidably clamped and fixed in the two sides of the pumping unit crank 1, the front and back sides of the pumping unit crank 1 are movably connected with a clamping structure 4 for limiting the clamping block 3, the clamping structure 4 includes a movable rod 41, the movable rod 41 is movably connected to the outer side of the pumping unit crank 1, the surface of the movable rod 41 is fixedly connected with a gear 42, the movable rod 41 and the gear 42 can ensure The clamping block 3 is fixed, and the surface of the gear 42 is meshed with the inner side of the clamping block 3. The front and back sides of the pumping unit crank 1 are fixedly installed with a hydraulic cylinder 43. The side of the hydraulic cylinder 43 away from the pumping unit crank 1 is fixedly connected with a connecting plate 44. The front side of the movable rod 41 is provided with a hexagonal groove 45, and the inner side of the connecting plate 44 is fixedly connected with a hexagonal block 46 engaged with the hexagonal groove 45. After the hydraulic cylinder 43 drives the connecting plate 44 to move, the hexagonal block 46 connected thereto is stuck in the inside of the hexagonal groove 45 to prevent the movable rod 41 and the gear 42 from rotating, thereby ensuring the fixation of the gear 42 after meshing with the clamping block 3, thereby achieving the quick connection of the balancing block 2 with the pumping unit crank 1.

[0033] Reference Figure 2-4 A movable toggle structure 5 for limiting the clamping structure 4 is fixedly installed on the front and back of the pumping unit crank 1. The movable toggle structure 5 includes a hydraulic cylinder 2 51. The hydraulic cylinder 2 51 is fixedly installed on the outer side of the pumping unit crank 1. A movable frame 52 is fixedly installed on the telescopic end of the hydraulic cylinder 2 51. Receiving grooves 53 are opened on both sides of the movable frame 52. A stabilizing rod 54 is fixedly connected to the interior of the receiving groove 53 in the longitudinal direction. A toggle block 55 is fixedly connected to the surface of the stabilizing rod 54. The hydraulic cylinder 2 51 can drive the movable frame 52 and the toggle block 55 limited by the receiving groove 53 to move up and adjust, so that the toggle block 55 can toggle and rotate the gear 42, so that the position of the balancing block 2 on both sides of the pumping unit crank 1 can be accurately adjusted every time the gear 42 rotates one tooth, thereby achieving accurate adjustment of the balanced position of the balancing block 2 on the pumping unit crank 1.

[0034] Reference Figure 2-4The inner wall of the storage groove 53 is fixedly connected with a tightening spring piece 6 for tightening the toggle block 55. The tightening spring piece 6 can tighten the toggle block 55 rotating on the surface of the stabilizing rod 54, so that the toggle block 55 slides from the surface of the gear 42 when the gear 42 moves downward, and then is quickly tightened by the tightening spring piece 6 and reset to the bottom of the inner wall of the storage groove 53, ensuring that each toggle block 55 is quickly reset after use. The bottom of the tightening spring piece 6 is fixedly connected to the top of the toggle block 55, and the inner longitudinal sliding connection of the connecting plate 44 is connected to a limiting rod 7 for limiting the connecting plate 44. The limiting rod 7 can limit the connecting plate 44, so that the stability of the connecting plate 44 during use is effectively improved, and the inner side of the limiting rod 7 is fixedly connected to the surface of the pumping unit crank 1, and the front and back sides of the pumping unit crank 1 are fixed A clamping block 8 is fixedly connected, and the clamping block 8 can clamp and protect the clamping block 3. The clamping block 8 is located on the outside of the clamping block 3 and limits the clamping block 3. A sliding rod 9 is fixedly connected to the outside of the balancing block 2. The sliding rod 9 can drive the clamping block 3 to slide between the clamping block 8 and the pumping unit crank 1 to ensure the stability of the clamping block 3 in meshing with the gear 42. The sliding rod 9 is slidably connected to the inside of the clamping block 8. The surface of the moving frame 52 is slidably connected with a stabilizing block 10 for limiting the moving frame 52. The stabilizing block 10 can limit the moving frame 52. After the stabilizing block 10 is connected to the pumping unit crank 1, the moving frame 52 is prevented from being unstable after being displaced left and right during use on the pumping unit crank 1. The inner side of the stabilizing block 10 is fixedly connected to the surface of the pumping unit crank 1.

[0035] Working principle: When in use, the balancing block 2 slides and is clamped on both sides of the pumping unit crank 1, and the balancing block 2 drives the clamping block 3 to be placed on the outside of the pumping unit crank 1, so that the inner side of the clamping block 3 is meshed with the surface of the gear 42, and then the hydraulic cylinder 43 is started to drive the hexagonal block 46 on the inner side of the connecting plate 44 to be clamped inside the hexagonal groove 45, so as to prevent the movable rod 41 and the gear 42 and the clamping block 3 meshed with the gear 42 from being displaced. Since the inner side of the balancing block 2 is pre-slidably clamped on both sides of the pumping unit crank 1, the gear 42 and the clamping block 3 are prevented from being displaced. The balancing block 2 connected with the clamping block 3 can be fixed on both sides of the pumping unit crank 1 for use, so as to quickly connect the balancing block 2 to the pumping unit crank 1, and after installation, when the balance degree of the balancing block 2 on both sides of the pumping unit crank 1 needs to be accurately adjusted, First, start the hydraulic cylinder 1 43 in advance to drive the connecting plate 44 to move toward the outside of the pumping unit crank 1, so that the hexagonal block 46 on the inner side of the connecting plate 44 moves out from the hexagonal groove 45 inside the movable rod 41, and the movable rod 41 and the gear 42 are released. Then start the hydraulic cylinder 2 51 to drive the moving frame 52 to move upward, so that the toggle block 55 on the inner side of the moving frame 52 moves upward under the limit of the storage groove 53, and the gear 42 and the movable rod 41 are rotated by meshing with the gear 42. However, the clamping block 3 and the balancing block 2 meshing with the gear 42 will also be driven by the meshing transmission of the gear 42 to move on both sides of the pumping unit crank 1, so that the balancing position of the balancing block 2 is accurately moved and adjusted every time the gear 42 rotates one tooth, thereby achieving accurate adjustment of the balancing position of the balancing block 2 on the pumping unit crank 1.

[0036] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 pumping unit swing balancing device, comprising a pumping unit crank (1), wherein both sides of the pumping unit crank (1) are vertically slidably connected with a balancing block (2), characterized in that: A clamping block (3) is fixedly connected to the inner side of the balancing block (2), a clamping structure (4) for limiting the position of the clamping block (3) is movably connected to the front and back sides of the pumping unit crank (1), and a movable toggle structure (5) for limiting the position of the clamping structure (4) is fixedly installed to the front and back sides of the pumping unit crank (1).

2. The oil pumping unit swing balancing device according to claim 1, characterized in that: The clamping structure (4) comprises a movable rod (41), the movable rod (41) being movably connected to the outer side of the pumping unit crank (1), the surface of the movable rod (41) being fixedly connected to a gear (42), the surface of the gear (42) being meshed with the inner side of the clamping block (3), the front and back sides of the pumping unit crank (1) being fixedly mounted with a hydraulic cylinder 1 (43), the side of the hydraulic cylinder 1 (43) away from the pumping unit crank (1) being fixedly connected to a connecting plate (44), the front side of the movable rod (41) being provided with a hexagonal groove (45), the inner side of the connecting plate (44) being fixedly connected to a hexagonal block (46) clamped with the hexagonal groove (45).

3. The oil pumping unit swing balancing device according to claim 1, characterized in that: The movable toggle structure (5) comprises a second hydraulic cylinder (51), the second hydraulic cylinder (51) being fixedly mounted on the outer side of the pumping unit crank (1), a movable frame (52) being fixedly mounted on the telescopic end of the second hydraulic cylinder (51), both sides of the movable frame (52) being provided with receiving grooves (53), the interior of the receiving groove (53) being longitudinally fixedly connected with a stabilizing rod (54), and a toggle block (55) being fixedly connected to the surface of the stabilizing rod (54).

4. The oil pumping unit swing balancing device according to claim 3, characterized in that: The inner wall of the storage groove (53) is fixedly connected with a tightening spring sheet (6) for tightening the toggle block (55), and the bottom of the tightening spring sheet (6) is fixedly connected to the top of the toggle block (55).

5. The swing balancing device for an oil pump according to claim 2, characterized in that: A limiting rod (7) for limiting the position of the connecting plate (44) is longitudinally slidably connected inside the connecting plate (44), and the inner side of the limiting rod (7) is fixedly connected to the surface of the pumping unit crank (1).

6. The oil pumping unit swing balancing device according to claim 1, characterized in that: A clamping block (8) is fixedly mounted on the front and back sides of the pumping unit crank (1); the clamping block (8) is located outside the clamping block (3) and limits the clamping block (3).

7. The oil pumping unit swing balancing device according to claim 1, characterized in that: The outer side of the balancing block (2) is fixedly connected with a sliding rod (9), and the sliding rod (9) is slidably connected to the inside of the pressing block (8).

8. The swing balancing device for an oil pump according to claim 3, characterized in that: The surface of the moving frame (52) is slidably connected to a stabilizing block (10) for limiting the position of the moving frame (52), and the inner side of the stabilizing block (10) is fixedly connected to the surface of the pumping unit crank (1).

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