Oil pumping unit steel wire rope braid lubricator

Abstract

The utility model discloses an oil pumping unit steel wire rope braid lubricator, and belongs to the technical field of oil extraction ground engineering. According to the technical scheme, an oil injection lubricating unit is used for injecting lubricating oil to a steel wire rope braid to lubricate the steel wire rope braid; the oil supply unit is used for storing lubricating oil and supplying oil to the oil injection lubricating unit; and the oil supply unit is detachably connected with the oil injection lubricating unit. The oil pumping device has the advantages that the safety of the oil pumping device is improved; the use cost of accessories is reduced; the production and maintenance cost is reduced; the safety risk in work is reduced; and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to a lubricator for the wire rope braid of a pumping unit, belonging to the technical field of oil production surface engineering. Background Art

[0002] The wire rope braid of a beam pumping unit is an important accessory of the pumping unit, which drives the downhole rod string and the liquid column load above the pump to move up and down reciprocally. Since the wire rope braid of the pumping unit works under load and operates in an outdoor environment, it is particularly prone to aging, burring, and broken strands, which affect the normal production of oil wells, pose hazards to equipment operation, and are prone to safety accidents. Therefore, the daily maintenance of the wire rope braid of the pumping unit is particularly important.

[0003] At present, the conventional lubrication and maintenance method for the wire rope braid of a pumping unit is to use a lift truck to manually apply butter or engine oil to the wire rope braid; or regularly replace the new wire rope braid. Its operation is complex, there are safety hazards, it wastes costs, and it affects the production efficiency of oil wells. Content of the Utility Model

[0004] Aiming at the defects existing in the prior art, the utility model provides a lubricator for the wire rope braid of a pumping unit, which can extend the service life of the wire rope braid, reduce production costs, improve the operation efficiency of the pumping unit, and ensure safe production.

[0005] The technical solution of the utility model is: a lubricator for the wire rope braid of a pumping unit, including:

[0006] An oil injection lubrication unit for spraying lubricating oil onto the wire rope braid to lubricate the wire rope braid;

[0007] An oil supply unit for storing lubricating oil and supplying oil to the oil injection lubrication unit;

[0008] The oil supply unit is detachably connected to the oil injection lubrication unit.

[0009] A valve is provided at the port of the oil supply unit, the valve is connected to a short joint b, and the connection between the short joint b and the oil injection lubrication unit is a detachable threaded connection.

[0010] A short joint a is provided at the port of the oil supply unit, and the short joint a is threadedly connected to the valve.

[0011] The oil supply unit includes an oil cylinder and a sealing gland b sealingly connected to the end of the oil cylinder. A piston is provided in the oil cylinder, the piston is connected to a push rod, the push rod penetrates through the sealing gland b and is connected to a handle outside the oil cylinder, and a valve is provided at the port of the oil cylinder.

[0012] The piston is a rubber plug.

[0013] The outer surface of the sealing gland b and the push rod are sealed by a sealing gland a, and the inner surface of the sealing gland b and the push rod are sealed by a partition.

[0014] The oil injection lubrication unit includes a flexible pipe threadedly connected to the nipple b. The flexible pipe is connected to a nozzle, and the nozzle extends into the roller bracket. The roller is rotatably connected to the roller bracket through a wheel axle, and a groove with a U-shaped cross-section is formed in the middle of the outer edge of the roller.

[0015] A suede sleeve is provided on the outer surface of the roller, and both sides of the roller are fixed on the wheel axle through lock washers.

[0016] The oil cylinder is threadedly connected to the sealing gland b.

[0017] The push rod and the piston are fixed through a nut. The handle is cylindrical and is threadedly connected to the push rod.

[0018] The beneficial effects of the present utility model are as follows:

[0019] (1) Improve the safety of the oil pumping equipment:

[0020] After adopting this device, it can effectively and regularly lubricate and maintain the wire rope braid of the pumping unit at any time, achieving the purpose of extending the service life of the wire rope braid and ensuring the safe use of the pumping unit equipment.

[0021] (2) Strong adaptability in on-site applications:

[0022] The structural design of this device can adapt to the lubrication requirements of the wire rope pigtails of beam pumping units with various different models and installed at different external locations, ensuring the continuity of the maintenance work of the pumping unit pigtails.

[0023] (3) Reduce the use cost of accessories:

[0024] Through the overall pressurized pipe sealing design, the front-end nozzle and roller design, and the design of a suede sleeve on the roller surface, etc., the friction between the accessories and the pigtail is reduced, the replacement frequency of the accessories is reduced, and the use cost of the accessories is reduced.

[0025] (4) Reduce the production and maintenance cost:

[0026] The wire rope pigtail lubricator of the pumping unit is not restricted by external conditions and can be used at any time, saving the cost of using the lift truck and reducing the maintenance cost of the pumping unit accessories.

[0027] (5) Reduce the safety risks during work:

[0028] The wire rope pigtail lubricator of the pumping unit is manually and simply operated on the ground, avoiding high-altitude operations and reducing the safety risk of personnel falling from a height during work.

[0029] (6) Facilitate installation and maintenance:

[0030] The front end of the device adopts an overall pressurized pipe sealing design, and fewer accessories need to be disassembled and assembled at the rear end, making the installation and use process simple and efficient, and improving work efficiency. Description of the Drawings

[0031] Figure 1 It is a structural diagram of the present utility model.

[0032] The reference numerals in the drawings are as follows: 1. Handle, 2. Push rod, 3. Sealing gland a, 4. Sealing gland b, 5. Oil cylinder, 6. Piston, 7. Short joint a, 8. Valve, 9. Short joint b, 10. Flexible pipe, 11. Nozzle, 12. Roller bracket, 13. Roller, 14. Groove, 15. Axle, 16. Nut, 17. Partition, 18. Locking piece. Detailed Embodiment

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings.

[0035] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0036] Secondly, the present utility model will be described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0037] The present utility model:

[0038] (1) Through the overall pressurized pipe sealing design, the sealing of the braided lubricating oil is realized, preventing the leakage and pollution of the oil product.

[0039] (2) Through the cooperation of the nozzle 11 and the roller 13, the lubricating oil can be evenly lubricated to the entire steel wire rope, solving the problem of uneven lubrication.

[0040] (3) Through the design of the roller bracket 12, the difficulty of manually applying lubricating oil with a lift truck in the original situation is solved, and the labor intensity is reduced.

[0041] (4) Through the detachable design at the front end, the accessories are easy to install and maintain, and the use cost is reduced.

[0042] (5) Through the U-shaped notch design of the front roller, it is convenient to temporarily store the sprayed lubricating oil, which is conducive to better lubricating the hair braid.

[0043] (6) Through the push-pull design of the handle 1, the output oil volume is controlled to ensure sufficient lubricating oil volume for the front nozzle 11 and the roller 13.

[0044] (7) The front flexible pipe design is convenient for adjusting the angle of the sucker rod wire braid lubricator during use, so as to achieve the purpose of lubricating the hair braid without dead angle.

[0045] The following is a further detailed description of the present utility model in conjunction with the attached Figure 1 drawings:

[0046] Embodiment 1

[0047] A wire rope braid lubricator for an oil pump is mainly composed of two parts: a front oil suction part and a rear oil spray lubrication part. The oil suction part includes a handle 1, a push rod 2, a sealing gland a3, a sealing gland b4, an oil cylinder 5, a rubber plug, a short joint a7, a valve 8, and a short joint b9. The rear lubrication part includes a flexible tube 10, a nozzle 11, a roller bracket 12, a roller 13, an axle 15, etc. Its main feature is that after pushing the push rod 2, the lubricating oil in the oil cylinder 5 can be sprayed onto the roller 13 that can roll on the roller 15 through the nozzle 11. The roller 13 is locked in the middle of the roller 15 through the cotter pin and the locking plate 18 on the roller 15. The upper part of the roller 13 is provided with a velvet cover for absorbing lubricating oil, and there is a U-shaped groove in the middle corresponding to the front end of the nozzle 11. In order to achieve a better oil spraying effect, the length of the thread of the nozzle 11 can be adjusted, that is, the distance between the nozzle 11 and the roller 13 can be adjusted. The purpose of lubrication and maintenance of the wire rope braid of the pumping unit is achieved by rolling the roller 13 on the wire rope braid. The front end oil suction part, namely the handle 1, the push rod 2, the sealing gland a3, the sealing gland b4, the oil cylinder 5, the short joint a7, the valve 8, the short joint b9, etc., is made of hard plastic material as a whole, which can reduce the weight of lifting the device during manual operation and facilitate flexible operation. The handle 1 is cylindrical or spherical for practical operation and is threadedly connected to the push rod 2. The sealing gland b4 is threadedly connected to the oil cylinder 5. The push rod 2 and the sealing gland b4 are sealed with the sealing rubber ring built in the sealing gland a3, and the lower part has a fence 17 to achieve mechanical sealing of the push rod 2. The lower end of the push rod 2 has a convex rubber plug, which is fastened and fixed by a nut 16 with an external thread. The front end of the oil cylinder 5 is a short joint a7, which is an integral structure with the oil cylinder 5. The short joint a7 is connected to the valve 8 by an external thread. The short joint b9 is connected to the valve 8 by an external thread. The front end of the short joint b9 is connected to the flexible tube 10. Since the flexible tube 10 can have a certain bending angle, it is convenient to adjust the injection angle of the lubricating oil of the front nozzle 11 during use, and at the same time, it is convenient for the roller 13 to contact the braid of the oil pumping unit wire rope at a better angle. The two ends of the flexible tube 10 are respectively connected to the short joint b9 and the nozzle 11. The design ratio of the cross-sectional area of ​​the oil cylinder 5 to the cross-sectional area of ​​the nozzle 11 is 100:1, which enhances the effect of splashing lubricating oil during the process of pushing the push rod 2. The nozzle 11 has its own external thread connected to the internal thread of the roller bracket 12. During use, the nozzle 11 can also be screwed in and out of the internal thread of the roller bracket 12 to adjust the distance between the nozzle 11 and the roller 13 to achieve the best oil spraying effect. The roller bracket 12 is a "U"-shaped barrel, and the upper and lower sides of the roller bracket 12 correspond to the plane openings to achieve the semi-circular wrapping of the two sides of the nozzle 11, and the front end is equipped with a wheel axle 15. In this way, the lubricating oil sprayed from the nozzle 11 can avoid being sprayed outward in large quantities, and the lubricating oil is concentratedly sprayed on the roller 11 due to the shielding of the roller bracket 12, thereby saving the use of the lubricating oil. The two ends of the axle 15 pass through the roller bracket 12, and the two sides of the roller bracket 12 are locked with split pins.On the axle 15, the roller 13 is fixed to the axle 15 by a lock piece 18. A "U"-shaped groove is machined in the middle of the roller 13 to better store a certain amount of lubricating oil and at the same time strengthen the contact with the surface of the wire rope pigtail of the pumping unit. The roller 13 is required to have a suede sleeve on its outer surface to ensure the adsorption of lubricating oil during operation and achieve a better lubrication effect during the process of using the roller 13 to lubricate the wire rope pigtail of the pumping unit.

[0048] Embodiment 2

[0049] During operation, first open the internal thread joint of the flexible pipe 10 and the short joint b9. By pulling the push rod 2 backward, the negative pressure generated in the oil cylinder 5 is used to suck the lubricating oil into the oil cylinder 5. According to the parts to be lubricated on site and the rust condition of the wire rope pigtail, a certain amount of lubricating oil is reasonably extracted, and the whole should not be greater than two-thirds of the length of the oil cylinder 5. It is recommended to use lubricating oil with a 1:1 ratio of machine oil and diesel to reduce the viscosity of the lubricating oil, facilitate spraying from the nozzle 11, and improve the lubrication effect. Immediately close the valve 8 and tighten the internal thread joint of the flexible pipe 10 and the short joint b9. Then, open the valve 8 again, gently place the roller 13 at the front end of the wire rope pigtail lubricator of the pumping unit on the wire rope pigtail of the pumping unit. After applying appropriate manual pressure to the push rod 2, the rubber plug moves forward in the oil cylinder 5 to pressurize the lubricating oil, and the lubricating oil is sprayed onto the U-shaped groove of the roller 13 through the nozzle 11. At the same time, as the roller 13 rolls up and down on the wire rope pigtail of the pumping unit, the sprayed lubricating oil lubricates the wire rope pigtail of the pumping unit. At the same time, a "U"-shaped groove is machined in the middle of the roller 13, which can not only achieve the short-term storage of lubricating oil but also be in close contact with the wire rope pigtail of the pumping unit to improve the lubrication effect. At the same time, the bending angle of the flexible pipe 10 can also be adjusted to adjust the angle of the roller bracket 12, so as to lubricate different parts and angles of the wire rope pigtail of the pumping unit. The outer side of the roller 13 has a suede design, which can also store a certain amount of lubricating oil and can play a role in replenishing and brushing the lubricating oil on the wire rope pigtail, further improving the lubrication effect. Since the nozzle 11 has an external thread and is threadedly connected to the roller bracket 12, the distance between the nozzle 11 and the roller 13 can also be adjusted to better spray the sprayed lubricating oil on the roller 13 and save the usage amount of lubricating oil. According to the on-site situation, when the handle 1 presses the oil cylinder 5 to the front end and the pressure of the nozzle 11 drops or a small amount of lubricating oil is sprayed, it means that the lubricating oil in the oil cylinder 5 has been used up. By closing the valve 8 again, loosening the internal thread joint of the flexible pipe 10 and the short joint b9, sucking the suction adapter 7 again to suck in lubricating oil, and pulling the handle 1 backward to suck the lubricant in the oil cylinder 5 to the required position again, it can be used for the second time. After using the wire rope pigtail lubricator of the pumping unit, drain the lubricating oil in the oil cylinder 5. Open the valve 8, loosen the internal thread joint of the flexible pipe 10 and the short joint b9, and properly clean and store each component. A wire rope pigtail lubricator of a pumping unit is simple, convenient, and practical in overall operation and is worthy of popularization and use in oil fields.

Claims

1. A wire rope braid lubricator for an oil pumping unit, characterized in that: include: An oil spray lubrication unit is used to spray lubricating oil onto the wire rope braid to lubricate the wire rope braid; An oil supply unit, used for storing lubricating oil and supplying oil to the oil injection lubrication unit; The oil supply unit is detachably connected to the oil injection lubrication unit.

2. The oil pumping unit wire rope braid lubricator according to claim 1, characterized in that: The oil supply unit port is provided with a valve (8), the valve (8) is connected to a short connector b (9), and the short connector b (9) is detachably threadedly connected to the oil injection lubrication unit.

3. The oil pumping unit wire rope braid lubricator according to claim 2, characterized in that: The oil supply unit port is provided with a short connector a (7), and the short connector a (7) is threadedly connected to the valve (8).

4. The oil pumping unit wire rope braid lubricator according to claim 1, characterized in that: The oil supply unit comprises an oil cylinder (5) and a sealing gland b (4) sealed to the end of the oil cylinder (5); a piston (6) is arranged inside the oil cylinder (5); the piston (6) is connected to a push rod (2); the push rod (2) passes through the sealing gland b (4) and is connected to a handle (1) outside the oil cylinder (5); and a valve (8) is arranged at the end of the oil cylinder (5).

5. The oil pumping unit wire rope braid lubricator according to claim 4, characterized in that: The piston (6) is a rubber stopper.

6. The oil pumping unit wire rope braid lubricator according to claim 4, characterized in that: The outer surface of the sealing gland b (4) and the push rod (2) are sealed by the sealing gland a (3), and the inner surface of the sealing gland b (4) and the push rod (2) are sealed by the partition (17).

7. The oil pumping unit wire rope braid lubricator according to claim 2, characterized in that: The oil injection lubrication unit comprises a flexible tube (10) threadedly connected to the short joint b (9), the flexible tube (10) being connected to a nozzle (11), the nozzle (11) extending into a roller bracket (12), the roller (13) being rotatably connected to the roller bracket (12) via a wheel axle (15), and a groove (14) having a U-shaped cross section is provided in the middle of the outer edge of the roller (13).

8. The oil pumping unit wire rope braid lubricator according to claim 7, characterized in that: The outer surface of the roller (13) is provided with a suede cover, and both sides of the roller (13) are fixed on the wheel shaft (15) through locking plates (18).

9. The oil pumping unit wire rope braid lubricator according to claim 4, characterized in that: The oil cylinder (5) is threadedly connected to the sealing gland b (4).

10. The oil pumping unit wire rope braid lubricator according to claim 4, characterized in that: The push rod (2) and the piston (6) are fixed by a nut (16); the handle (1) is cylindrical; the handle (1) and the push rod (2) are threadedly connected.

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