Tubular column oiling device

Abstract

The utility model discloses a tubular column oiling device, and belongs to the technical field of petroleum workover equipment. The oiling mechanism comprises an oiling mechanism base, a guide frame arranged on the oiling mechanism base, an air cylinder, a rotating shaft, an oiling assembly frame body, an air motor and an oil spray nozzle, the air cylinder is fixed to the rear end of the guide frame, the rotating shaft is rotationally arranged in the oiling assembly frame body, the rear end of the rotating shaft is connected with a rotary connector, and an oil channel communicated with the rotary connector is formed in the rotating shaft. The front end of the rotating shaft is connected with an oil spraying shield and a pressing disc, an oil spraying nozzle is arranged on the oil spraying shield, an outlet of an oil channel in the rotating shaft is communicated with the oil spraying nozzle, the oiling assembly frame body is in sliding connection with the guide frame through a guide column, an air cylinder rod of the air cylinder is connected with the rear end of the oiling assembly frame body, and the air motor is connected to the oiling assembly frame body. The output end of the air motor is connected with the rotating shaft through a chain wheel chain. The oil coating device can realize automatic oil coating on the threads at the end part of the petroleum pipe column, and is uniform in oil coating and high in efficiency.

Description

Technical Field

[0001] This utility model relates to a tubing oiling device, which is a device for applying thread oil to the end threads of tubing used in oilfield drilling, and belongs to the field of oil well workover equipment technology. Background Technology

[0002] During oil well workover operations, the threads at the end of the tubing string need to be coated with thread lubricant before being run into the well. Currently, the thread lubricant is typically applied manually, which is inefficient, results in uneven lubricant application, and hinders automated oil well workover operations. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model provides a tubing oiling device that can automatically spray thread oil onto the threads at the end of the tubing.

[0004] This utility model is achieved through the following technical solution: a tubular oiling device, characterized in that it includes an oiling mechanism base, a guide frame mounted on the oiling mechanism base, a cylinder, a rotating shaft, an oiling component frame, an air motor, and an oil nozzle. The cylinder is fixed to the rear end of the guide frame. The rotating shaft is rotatably mounted inside the oiling component frame. A rotary joint is connected to the rear end of the rotating shaft. An oil passage communicating with the rotary joint is provided inside the rotating shaft. An oil spray guard and a pressure plate are connected to the front end of the rotating shaft. The oil nozzle is mounted on the oil spray guard. The outlet of the oil passage inside the rotating shaft is connected to the oil nozzle. The oiling component frame is slidably connected to the guide frame via a guide column. The cylinder rod of the cylinder is connected to the rear end of the oiling component frame. The air motor is connected to the oiling component frame. The output end of the air motor is connected to the rotating shaft via a sprocket and chain.

[0005] In operation, the end of the tubing to be coated with thread-locking oil is located inside the spray nozzle cover and positioned by a pressure plate. A rotary joint connects to a pneumatic oiling machine via piping. The thread-locking oil is supplied to the nozzles through the pneumatic oiling machine, the rotary joint, and the oil passages within the rotating shaft. When the pneumatic motor rotates, it drives the rotating shaft via a sprocket and chain drive, which in turn drives the spray nozzle cover at the front end of the shaft to rotate. The spray nozzle cover then rotates the nozzles, spraying oil onto the threads at the end of the tubing. When the cylinder rod extends or retracts, it extends or retracts the oiling assembly frame, thereby extending or retracting the rotating shaft, pneumatic motor, spray nozzle cover, and nozzles.

[0006] Furthermore, to facilitate the adjustment of the guide frame's height and to accommodate different specifications of tubular columns, the guide frame is movably connected to the oiling mechanism's base.

[0007] Furthermore, to facilitate height adjustment of the guide frame, a height adjustment mechanism is provided between the guide frame and the base of the oiling mechanism. This mechanism allows the height of the guide frame to be adjusted so that the oiling mechanism can accommodate tubular columns of different specifications.

[0008] Furthermore, the height adjustment mechanism includes an adjusting seat, an adjusting nut, and an adjusting screw. The adjusting seat and adjusting nut are respectively fixed to the sides of the guide frame and the oiling mechanism base. The adjusting screw passes through the screw hole on the adjusting seat and is threadedly connected to the adjusting nut. By turning the adjusting screw, the height of the guide frame can be easily adjusted.

[0009] The beneficial effects of this invention are as follows: This invention has a simple structure. A pneumatic motor drives the oiling assembly to rotate and spray oil onto the threads at the end of the tubing string. This allows for all-around spraying of thread oil onto the threads, resulting in uniform oil application and excellent oiling effect. This invention enables automated oiling of the tubing string threads, resulting in high operational efficiency. When used in conjunction with oil well workover equipment, it can significantly improve the automation level of oil well workover equipment and increase the efficiency of oil well workover operations. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 2 This is a front view of the tubular oiling device of this utility model;

[0012] Figure 3 yes Figure 2 DD sectional view diagram;

[0013] Figure 4 yes Figure 3 EE sectional view diagram;

[0014] Figure 5 yes Figure 1 Rear view diagram;

[0015] Figure 6 yes Figure 5 FF sectional view diagram;

[0016] In the diagram, 1. Oiling mechanism base, 2. Guide frame, 3. Cylinder, 4. Rotary joint, 5. Driven sprocket, 6. Shaft, 7. Oiling assembly frame, 8. Oil nozzle, 9. Pressure plate, 10. Oil spray cover, 11. Drive sprocket, 12. Air motor, 13. Pneumatic oil injector, 14. Adjusting nut, 15. Adjusting screw, 16. Adjusting seat, 17. Guide column, 18. Graphite copper sleeve, 19. Oil drain;

[0017] 7.1 Cylinder connecting bracket, 7.2 Shaft seat, 7.3 Baffle, 7.4 Air motor mounting bracket. Detailed Implementation

[0018] The present invention will be further described below through non-limiting embodiments and in conjunction with the accompanying drawings:

[0019] As attached Figures 1-6As shown, the tubing coating device includes a coating mechanism base 1, a guide frame 2, a cylinder 3, a rotating shaft 6, a coating component frame 7, an air motor 12, and an oil nozzle 8. The guide frame 2 is mounted on the coating mechanism base 1. In this invention, the guide frame 2 can be fixed to the coating mechanism base 1 as a single unit. To facilitate adjustment of the coating component height and adaptability to coating tubing of different specifications, in this embodiment, the guide frame 2 is vertically movably connected to the coating mechanism base 1, and its height can be adjusted as needed. In this embodiment, the coating mechanism base 1 is made of steel plate with a rectangular cross-section. The cross-section of the guide frame 2 at the mating end with the coating mechanism base 1 is also rectangular, and the guide frame 2 is fitted onto the coating mechanism base 1. To facilitate height adjustment of the guide frame 2, a height adjustment mechanism is provided between the guide frame 2 and the oiling mechanism base 1. The height adjustment mechanism includes an adjusting nut 14, an adjusting screw 15, and an adjusting seat 16. The adjusting seat 16 and adjusting nut 14 are respectively fixed to the sides of the guide frame 2 and the oiling mechanism base 1. The adjusting screw 15 passes through a screw hole on the adjusting seat 16 and is threadedly connected to the adjusting nut 14. The height of the guide frame 2 can be easily adjusted by rotating the adjusting screw 15. The oiling component frame 7 is slidably connected to the guide frame 2 via two guide posts 17. The guide frame 2 is provided with a guide sleeve that cooperates with the guide posts 17. The oiling component frame 7 includes a cylinder connecting frame 7.1, a rotating shaft seat 7.2, a pneumatic motor mounting frame 7.4, and a baffle 7.3. The cylinder connecting frame 7.1, rotating shaft seat 7.2, and pneumatic motor mounting frame 7.4 are all integrated with the baffle 7.3. The cylinder body of the cylinder 3 is fixed to the rear end of the guide frame 2. The cylinder rod of the cylinder 3 is connected to the rear end of the cylinder connecting frame 7.1 of the oiling assembly frame 7. The rotating shaft 6 is rotatably mounted in the rotating shaft seat 7.2 of the oiling assembly frame 7 via bearings. The rear end of the rotating shaft 6 is connected to a rotary joint 4. The rotating shaft 6 has an oil passage communicating with the rotary joint 4. The rotary joint 4 is connected to the pneumatic oil injector 13. The front end of the rotating shaft 6 is provided with an oil spray cover 10 and a pressure plate 9. The pressure plate 9 is mounted on the rotating shaft 6 via a graphite copper sleeve 18. The end of the rotating shaft 6 is provided with a pressure cap and is connected to the rotating shaft 6 via bolts. The oil nozzles 8 are provided on the oil spray cover 10. There are multiple oil nozzles 8. The oil spray cover 10 is provided with an oil drain 19. The oil nozzles 8 communicate with the oil drain 19. The outlet of the oil passage in the rotating shaft 6 is connected to the oil drain 19 via a hinged joint. The air motor 12 is connected to the air motor mounting bracket 7.4 of the oiling component frame 7. The output end of the air motor 12 is provided with a drive sprocket 11, and the driven sprocket 5 is provided on the rotating shaft 6. The drive sprocket 11 and the driven sprocket 5 are connected by a chain.

[0020] When this invention is in operation, the cylinder rod of cylinder 3 extends, driving the oiling assembly frame 7, rotating shaft 6, pneumatic motor 12, oil spray guard 10, and oil nozzle 8 to move forward together, approaching the horizontally placed end of the tube to be oiled. The tube is then positioned by pressure plate 9, at which point the end of the tube is located inside the oil spray guard 10. The pneumatic motor 12 drives the rotating shaft 6 to rotate via sprocket and chain drive, which in turn drives the oil spray guard 10 and oil nozzle 8 to rotate. The pneumatic oiling machine 13 delivers thread oil through the rotary joint 4, the oil passage in the rotating shaft 6, and the oil drain 19 to the oil nozzle 8. During the rotation of the oil nozzle 8, thread oil is sprayed onto the threads of the tube end. After oiling is complete, the cylinder rod of cylinder 3 retracts, causing the oiling assembly to retract as well.

[0021] This invention enables automated oiling of the threads at the end of oil tubing. It uses a rotating nozzle to spray oil onto the tubing end, ensuring uniform application and high efficiency. When used in conjunction with oil well workover equipment, this invention significantly improves the automation level and efficiency of oil well workover, demonstrating high practicality.

[0022] The other parts in this embodiment are all existing technologies and will not be described in detail here.

Claims

1. A tubular oiling device, characterized in that: The device includes an oiling mechanism base, a guide frame mounted on the oiling mechanism base, a cylinder, a rotating shaft, an oiling component frame, an air motor, and an oil nozzle. The cylinder is fixed to the rear end of the guide frame. The rotating shaft is rotatably mounted inside the oiling component frame. A rotary joint is connected to the rear end of the rotating shaft. An oil passage communicating with the rotary joint is provided inside the rotating shaft. An oil spray guard and a pressure plate are connected to the front end of the rotating shaft. The oil nozzle is mounted on the oil spray guard. The outlet of the oil passage inside the rotating shaft is connected to the oil nozzle. The oiling component frame is slidably connected to the guide frame via a guide column. The cylinder rod of the cylinder is connected to the rear end of the oiling component frame. The air motor is connected to the oiling component frame, and the output end of the air motor is connected to the rotating shaft via a sprocket and chain.

2. The tubular oiling device according to claim 1, characterized in that: The guide frame is movably connected to the base of the oiling mechanism.

3. The tubular oiling device according to claim 2, characterized in that: A height adjustment mechanism is provided between the guide frame and the base of the oiling mechanism.

4. The tubular oiling device according to claim 3, characterized in that: The height adjustment mechanism includes an adjustment seat, an adjustment nut, and an adjustment screw. The adjustment seat and the adjustment nut are respectively fixed to the sides of the guide frame and the oiling mechanism base. The adjustment screw passes through the screw hole on the adjustment seat and is threadedly connected to the adjustment nut.

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