Lubricating tool for steel wire rope of oil pumping unit

Abstract

The utility model discloses a lubricating tool for a steel wire rope of an oil pumping unit, and relates to the technical field of oil pumping units, in particular to the lubricating tool for the steel wire rope of the oil pumping unit, which is used for brushing oil on the steel wire rope of the oil pumping unit and comprises a support rod and two clamp bodies for clamping the steel wire rope of the oil pumping unit, and the end parts of the two clamp bodies are hinged through a rotating shaft; the oil pumping unit steel wire rope is clamped through the clamping grooves of the two clamping bodies, the annular shells located on the clamping bodies only abut against the steel wire rope, and the steel balls on the annular shells abut against the outer side wall of the steel wire rope. The two clamping bodies are pushed by the supporting rod to slide along the steel wire rope, in the process that the two clamping bodies clamp the steel wire rope to slide, all the steel balls roll on the outer side wall of the steel wire rope, oil in the oil storage cavity flows out through the steel balls, the flowing-out oil adheres to the steel wire rope, and therefore oil brushing protection on the steel wire rope is achieved. Compared with the prior art, a brush is replaced by the steel balls, oil brushing work on the steel wire rope can be achieved, the steel balls are resistant to abrasion, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumping units, in particular to a lubricating tool for a steel wire rope of an oil pumping unit. Background Art

[0002] In oilfield development, the pumping unit is the main ground equipment used to pump oil, and the braid (wire rope, suspension rope) is the main bridge and one of the main accessories connecting the pumping unit donkey head and the pumping well bare rod. It bears the load of all the pumping rods and liquid columns in the wellbore for a long time. It works in the field for a long time, and is exposed to wind, sun, rain, and the alternating loads generated by the up and down movement of the bare rod. The braid is a flexible wire rope made of several strands of steel wire. If it is not maintained regularly, the steel wire will rust and break. If the workers fail to find it in time, the braid will break, causing the pumping unit to stop well, affecting the well opening rate, affecting crude oil production, and causing certain economic impacts.

[0003] At present, the commonly used pumping equipment is mainly the walking beam pumping unit, and each pumping unit is equipped with a hair braid on its head. Since the hair braid is high from the ground, it is troublesome to maintain. During maintenance, the operator needs to climb onto the pumping unit head and use bottled lubricating oil to pour it along the hair braid from top to bottom for maintenance. This maintenance method has the following disadvantages: 1. The highest position of the hair braid is generally about five meters, and the operator's maintenance of the rope is an aerial operation, which is quite dangerous. 2. The space on the pumping unit head is narrow, and the operator needs to wear a safety belt for aerial operations, which is inconvenient to operate, resulting in a long well stoppage time and affecting the oil well production. 3. The operation of climbing onto the pumping unit head to pour lubricating oil to maintain the hair braid is greatly affected by the operator's operating ability and wind force, which not only causes a waste of lubricating oil, but also does not fully maintain the hair braid.

[0004] In the published Chinese patent application, the publication number is CN213447824U, and the patent name is: an oil brushing device for offshore oil wire rope, including a box body, irregular circular rings are fixedly connected on both sides of the inner wall of the box body, the outer walls of the two irregular circular rings are rotatably sleeved with the same first irregular rotating ring, the inner wall of the first irregular rotating ring is fixedly sleeved with a second irregular rotating ring, the second irregular rotating ring is in contact with the two irregular circular rings, the outer wall of the first irregular rotating ring is fixedly connected with a plurality of meshing teeth, a power mechanism meshing with the meshing teeth is provided in the box body, an oil storage chamber is provided in the second irregular rotating ring, and an oil brushing device is provided in the oil storage chamber. Although the two gears are driven to rotate by the power mechanism, the two gears drive the meshing teeth to rotate and drive the first irregular rotating ring and the second irregular rotating ring to rotate, the lubricating oil splashes on the brush, allowing the rotating brush with oil to maintain the wire rope. The prior art can solve the above problems through the above technical solution.

[0005] However, the prior art has certain limitations. Since the oil pump wire rope is made of multiple strands of wire ropes that are twisted and rolled, the outer surface of the wire rope has certain textures. When the brush is used to brush the oil onto the outer surface of the wire rope, the friction between the wire rope and the brush can easily cause the brush to wear. Therefore, the brush of the prior art is very easy to wear and the overall service life is relatively short.

[0006] In summary, in order to solve the problem of easy wear and short service life of the brush in the prior art, this case is specially proposed to solve it. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the utility model provides a lubricating tool for a steel wire rope of an oil pumping unit, which solves the problems raised in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lubricating tool for the steel rope of the oil pumping unit, which is used for brushing oil on the steel rope of the oil pumping unit, comprises a support rod and two clamps for clamping the steel rope of the oil pumping unit, the ends of the two clamps are hinged by a rotating shaft, and a torsion spring is mounted on the rotating shaft, and the two torque output ends of the torsion spring are respectively fixedly connected to the inner walls of the two clamps; a clamping groove is provided on one side wall of the two clamps, an oil storage cavity is provided inside the clamps, a rubber pad and a plurality of semi-annular annular shells are fixedly installed on the clamps and near the clamping groove, the interior of the annular shell is connected to the oil storage cavity, and a plurality of steel balls are provided on the inner ring side wall of the annular shell.

[0011] Optionally, a threaded opening is provided on the upper surface of the clamp body, and the clamp body is threadedly connected to a lubricating oil bottle through the threaded opening, and the lubricating oil bottle is connected to the oil storage cavity.

[0012] Optionally, a plurality of oil holes are provided on the outer ring side wall, the top wall and the bottom wall of the annular shell, and the annular shell is connected with the oil storage cavity through the oil holes.

[0013] Optionally, a portion of the spherical surface of the steel ball penetrates the inner ring side wall of the annular shell and a gap exists at the penetration point between the two.

[0014] Optionally, a plurality of springs are arranged inside the annular shell, one end of each spring abuts against the inner wall of the annular shell, and the other end of each spring abuts against the steel ball.

[0015] Optionally, a torsion spring groove is provided on the side wall of one end of the two clamping bodies close to the rotating shaft, and two torque output ends of the torsion spring are respectively located at the torsion spring grooves of the two clamping bodies.

[0016] Optionally, the upper end of the support rod is hinged to the lower end of the rotating shaft or the lower part of a clamping body.

[0017] (III) Beneficial effects

[0018] The utility model provides a lubricating tool for a steel wire rope of an oil pumping unit, which has the following beneficial effects:

[0019] The lubricating tool for the steel rope of the oil pumping unit has the effect of brushing oil on the steel rope of the oil pumping unit through the coordinated arrangement of the support rod, two clamps, and multiple annular shells. The steel rope of the oil pumping unit is clamped by the clamping grooves of the two clamps, and each annular shell on the clamp only leans against the steel rope, and the steel balls on each annular shell abut against the outer wall of the steel rope; the two clamps are pushed to slide along the steel rope by the support rod, and during the sliding process of the steel rope clamped by the two clamps, each steel ball rolls on the outer wall of the steel rope, and the oil in the oil storage cavity flows out through the steel balls, and the flowing oil adheres to the steel rope, thereby realizing the oil brushing protection of the steel rope. Compared with the prior art, the steel balls are used instead of the brushes, which can not only realize the oil brushing work of the steel rope, but also the steel balls are wear-resistant and have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the lubricating tool for the steel wire rope of the oil pumping unit of the utility model after clamping the steel wire rope;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the lubricating tool for the steel wire rope of the oil pumping unit of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the lubrication tool for the steel wire rope of the oil pumping unit of the utility model in the state where two clamps are combined;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the lubrication tool for the steel wire rope of the oil pumping unit of the utility model in the unfolded state of the two clamps;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the annular shell in the lubricating tool of the oil pumping unit wire rope of the utility model;

[0026] Figure 6 The utility model is a schematic cross-sectional structure diagram of an annular shell in a lubricating tool for a steel wire rope of an oil pumping unit.

[0027] In the figure: 1. support rod; 2. steel wire rope; 3. clamp body; 301. torsion spring groove; 4. lubricating oil bottle; 5. rotating shaft; 6. threaded mouth; 7. clamp groove; 8. oil storage chamber; 9. rubber pad; 10. annular shell; 11. steel ball; 12. oil hole; 13. spring. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0030] See also Figures 1 to 6 The utility model provides a technical solution: a lubricating tool for a pumping unit wire rope, which is used for brushing oil on a pumping unit wire rope 2, comprising a support rod 1 and two clamps 3 for clamping the pumping unit wire rope 2, the ends of the two clamps 3 being hinged by a rotating shaft 5, and a torsion spring is mounted on the rotating shaft 5, and the two torque output ends of the torsion spring are respectively fixedly connected to the inner walls of the two clamps 3. The upper end of the support rod 1 is hinged to the lower end of the rotating shaft 5 or the lower part of one clamp 3.

[0031] A clamping groove 7 is provided on one side wall of the two clamping bodies 3, an oil storage cavity 8 is provided inside the clamping body 3, a rubber pad 9 and a plurality of semi-annular annular shells 10 are fixedly installed on the clamping body 3 and near the clamping groove 7, the interior of the annular shell 10 is connected with the oil storage cavity 8, and a plurality of steel balls 11 are arranged on the inner ring side wall of the annular shell 10.

[0032] Among them, the support rod 1 is used to support the two clamps 3, so that the staff can push the two clamps 3 to slide along the pumping unit wire rope through the support rod 1. The support rod 1 can adopt the extension rod in the Chinese patent application with the publication number CN214306425U and the patent name of the lubricating tool for the pumping unit wire rope. The support rod 1 can be adjusted in length by telescopic means. The torsion spring is used to elastically push the two clamps 3 to be in a clamped state continuously, that is, under the action of the torsion spring, the two clamps 3 rotate around the rotating shaft 5 and the two are close to each other. After the two clamps 3 are close to each other, the clamping grooves 7 of the two clamps 3 constitute the clamping position for clamping the wire rope 2. By using the clamping grooves 7 of the two clamps 3 to clamp the pumping unit wire rope 2, each annular shell 10 located on the clamp 3 is close to the wire rope 2, and the steel balls 11 on each annular shell 10 are in contact with the outer wall of the wire rope 2. The two clamps 3 are pushed to slide along the steel wire rope 2 by the support rod 1. During the sliding process of the two clamps 3 clamping the steel wire rope 2, each steel ball 11 rolls or slides on the outer wall of the steel wire rope 2, and the oil in the oil storage chamber 8 flows out through the outer surface of the steel ball 11. The outflowing oil adheres to the steel wire rope 2, thereby realizing the oil brushing protection of the steel wire rope 2. Compared with the prior art, the steel ball 11 is used to replace the brush, which can not only realize the oil brushing work of the steel wire rope 2, but also the steel ball is wear-resistant and has a long service life. Among them, the rubber pad 9 is used to spread the oil evenly, so that the oil is coated on the outer surface of the steel wire rope 2 more smoothly and evenly.

[0033] Specifically, a threaded opening 6 is formed on the upper surface of the clamp body 3 , and a lubricating oil bottle 4 is threadedly connected to the clamp body 3 through the threaded opening 6 , and the lubricating oil bottle 4 is communicated with the oil storage chamber 8 .

[0034] The lubricating oil bottle 4 is used to hold oil. The outer wall of the bottle mouth of the lubricating oil bottle 4 is threadedly connected with the threaded opening 6 of the clamp body 3, so that the lubricating oil bottle 4 is threadedly installed on the clamp body 3. The oil in the lubricating oil bottle 4 can flow into the oil storage cavity 8 of the clamp body 3 through the threaded opening 6.

[0035] Specifically, a plurality of oil holes 12 are provided on the outer ring side wall, the top wall and the bottom wall of the annular shell 10, and the annular shell 10 is connected to the oil storage chamber 8 through the oil holes 12. A portion of the spherical surface of the steel ball 11 penetrates the inner ring side wall of the annular shell 10, and there is a gap at the penetration point between the two. A plurality of springs 13 are provided inside the annular shell 10, one end of the spring 13 abuts against the inner side wall of the annular shell 10, and the other end of the spring 13 abuts against the steel ball 11.

[0036] The oil in the oil storage chamber 8 flows into the annular shell 10 through the oil holes 12. The spring 13 is used to elastically push the steel ball 11, so that the steel ball 11 is always located at the inner ring side wall of the annular shell 10, and at the same time, the steel ball 11 can be closely attached to the outer side wall of the wire rope 2. The oil in the annular shell 10 flows out through the gap between it and the steel ball 11, and the oil after flowing out adheres to the outer side wall of the wire rope 2, thereby achieving the oil brushing work of the wire rope 2 of the pumping unit.

[0037] Specifically, a torsion spring slot 301 is formed on the side wall of one end of the two clamping bodies 3 close to the rotating shaft 5 , and two torque output ends of the torsion spring are respectively located at the torsion spring slot 301 of the two clamping bodies 3 .

[0038] The two torque output ends of the torsion spring are fixedly connected to the two clamping bodies 3 at the torsion spring grooves 301 .

[0039] When in use, the lubricating oil bottle 4 containing oil is installed on the clamp body 3. The two clamp bodies 3 are opened, and the clamping grooves 7 of the two clamp bodies 3 clamp the pumping unit wire rope 2. The two clamp bodies 3 are pushed to slide along the pumping unit wire rope 2 through the support rod 1. During the sliding process of the two clamp bodies 3 clamping the wire rope 2, each steel ball 11 rolls or slides on the outer wall of the wire rope 2, and the oil in the oil storage cavity 8 flows out through the outer surface of the steel ball 11, and the outflowing oil adheres to the wire rope 2, thereby realizing the oil brushing protection of the wire rope 2.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lubricating tool for a steel wire rope of an oil pumping unit, which is used for oiling a steel wire rope (2) of an oil pumping unit, and is characterized by: It comprises a support rod (1) and two clamping bodies (3) for clamping a steel wire rope (2) of an oil pumping unit, the ends of the two clamping bodies (3) being hinged via a rotating shaft (5), and a torsion spring is sleeved on the rotating shaft (5), and the two torque output ends of the torsion spring are respectively fixedly connected to the inner walls of the two clamping bodies (3); A clamping groove (7) is provided on one side wall of the two clamping bodies (3), an oil storage cavity (8) is provided inside the clamping body (3), a rubber pad (9) and a plurality of semi-annular annular shells (10) are fixedly installed on the clamping body (3) near the clamping groove (7), the interior of the annular shell (10) is communicated with the oil storage cavity (8), and a plurality of steel balls (11) are provided on the inner ring side wall of the annular shell (10).

2. The lubricating tool for the wire rope of the oil pumping unit according to claim 1, characterized in that: The upper surface of the clamp body (3) is provided with a threaded opening (6), and the clamp body (3) is threadedly connected to a lubricating oil bottle (4) via the threaded opening (6), and the lubricating oil bottle (4) is communicated with an oil storage chamber (8).

3. The lubricating tool for the wire rope of the oil pumping unit according to claim 1, characterized in that: A plurality of oil holes (12) are provided on the outer ring side wall, the top wall and the bottom wall of the annular shell (10), and the annular shell (10) is connected to the oil storage cavity (8) through the oil holes (12).

4. The lubricating tool for the steel wire rope of the oil pumping unit according to claim 1, characterized in that: A portion of the spherical surface of the steel ball (11) penetrates the inner ring side wall of the annular shell (10), and a gap exists at the penetration point between the two.

5. The lubricating tool for the steel wire rope of the oil pumping unit according to claim 4, characterized in that: A plurality of springs (13) are arranged inside the annular shell (10), one end of the spring (13) abuts against the inner wall of the annular shell (10), and the other end of the spring (13) abuts against the steel ball (11).

6. The lubricating tool for the wire rope of the oil pumping unit according to claim 1, characterized in that: A torsion spring groove (301) is provided on the side wall of one end of the two clamping bodies (3) close to the rotating shaft (5), and two torque output ends of the torsion spring are respectively located at the torsion spring groove (301) of the two clamping bodies (3).

7. The lubricating tool for the wire rope of the oil pumping unit according to claim 1, characterized in that: The upper end of the support rod (1) is hinged to the lower end of the rotating shaft (5) or the lower part of a clamping body (3).

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