Quick dismounting device for top drive washing pipe

Abstract

The utility model relates to the technical field of top drive washing pipes, in particular to a top drive washing pipe quick dismounting device which comprises a main arm, the left end of the main arm is fixedly connected with a sleeving piece, a first groove is formed in the main arm, a second groove is formed in the inner wall of the first groove, a clamping pin is arranged in the first groove, and a clamping groove is formed in the clamping pin. A movable plate is fixedly connected to the right end of the clamping pin, a clamping plate is fixedly connected to the outer surface of the movable plate, a threaded groove is formed in the outer surface of the main arm, a rotating ring is in threaded connection with the outer surface of the main arm, a clamping groove is formed in the inner surface of the rotating ring, and the clamping plate is located in the clamping groove. The section of the sleeving piece is in an arc shape, and the inner surface of the sleeving piece is fixedly connected with a fixing pin. The top drive washing pipe quick-dismounting device is reasonable in structure, the top drive washing pipe can be quickly dismounted and mounted more conveniently, and the dismounting and mounting time of the top drive washing pipe is shortened.

Description

Technical Field

[0001] The utility model relates to the field of top drive swab tubes, in particular to a quick disassembly device for top drive swab tubes. Background Technique

[0002] Today, with the continuous development of drilling technology, as a key component in the top drive drilling system (abbreviated as top drive), the performance and reliability of the top drive swab tube play a crucial role in the success of drilling operations. The main function of the top drive swab tube is to solve the connection problem when the drilling fluid flows through the main shaft of the drilling rig, ensuring mud circulation, material transportation, and wellbore stability during the drilling process.

[0003] For the existing top drive swab tubes, in order to ensure the sealing performance between the swab tube and the main shaft and gooseneck tube, the installation torque of the top drive swab tube is not less than 300 N·m. In addition, the disassembly operation of the top drive swab tube is at a high altitude, and the installation position space of the swab tube is narrow. Usually, the disassembly or installation time is long. A certain drilling team has experienced downhole failures such as stuck drill pipes due to too long replacement time of the swab tube. Therefore, how to shorten the disassembly or installation time of the tightened swab tube is particularly important for ensuring downhole safety during drilling construction. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a quick disassembly device for top drive swab tubes is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A quick disassembly device for top drive swab tubes, including a main arm, a socket part is fixedly connected to the left end of the main arm, a first groove is opened inside the main arm, a second groove is opened on the inner wall of the first groove, a retaining pin is arranged inside the first groove, a moving plate is fixedly connected to the right end of the retaining pin, a clamping plate is fixedly connected to the outer surface of the moving plate, a threaded groove is opened on the outer surface of the main arm, a rotating ring is threadedly connected to the outer surface of the main arm, a clamping groove is opened on the inner surface of the rotating ring, and the clamping plate is located inside the clamping groove.

[0006] As a further description of the above technical scheme:

[0007] The cross-sectional shape of the socket part is arc-shaped, and a fixing pin is fixedly connected to the inner surface of the socket part.

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

[0009] The cross-sectional shape of the fixing pin is circular, the cross-sectional shape of the retaining pin is circular, and the cross-sectional shapes of the fixing pin and the retaining pin are the same.

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

[0011] The right end of the main arm is fixedly connected with a force-bearing arm, and a perforated groove is formed on the outer surface of the force-bearing arm.

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

[0013] The upper and lower surfaces of the force-bearing arm are provided with a plurality of first anti-slip grooves.

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

[0015] The outer surface of the rotating ring is provided with a plurality of second anti-slip grooves.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, for the top drive swivel pipe quick disassembly device, through the rotating ring, the clamping plate, the main arm, the moving plate, the clamping pin and the fixing pin, by rotating the rotating ring, the clamping plate can be driven to move left and right along the main arm, and then the moving plate and the clamping pin can be driven to move left and right. When it is necessary to screw the top drive swivel pipe, the fixing pin is aligned with the groove on the outer surface of the top drive swivel pipe, and then the clamping pin is aligned with another groove position on the outer surface of the top drive swivel pipe. Then, by rotating and converting, the clamping pin is controlled to extend into another groove on the outer surface of the top drive swivel pipe, so that the top drive swivel pipe can be screwed, disassembled or tightened. Compared with the existing top drive swivel pipe, in order to ensure the sealing performance between the swivel pipe and the main shaft and the gooseneck pipe, the installation torque of the top drive swivel pipe is not less than 300 N.m. In addition, the disassembly operation of the top drive swivel pipe is at a high place, and the installation position space of the swivel pipe is narrow, and the disassembly or installation usually takes a long time. The top drive swivel pipe quick disassembly device can more conveniently carry out quick disassembly and quick installation of the top drive swivel pipe, and shorten the disassembly and installation time of the top drive swivel pipe. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the top drive swivel pipe quick disassembly device proposed by the utility model;

[0019] Figure 2 is the overall structural sectional view of the top drive swivel pipe quick disassembly device proposed by the utility model;

[0020] Figure 3 is the Figure 2 enlarged view of the structure at A in the top drive swivel pipe quick disassembly device proposed by the utility model;

[0021] Figure 4 is the clamping pin structure diagram of the top drive swivel pipe quick disassembly device proposed by the utility model.

[0022] Legend Explanation:

[0023] 1. Main arm; 2. Socket piece; 3. First groove; 4. Second groove; 5. Pin; 6. Movable plate; 7. Clamping plate; 8. Thread groove; 9. Swivel ring; 10. Clamping groove; 11. Fixed pin; 12. Force-bearing arm; 13. Perforated groove; 14. First anti-slip groove; 15. Second anti-slip groove. Detailed implementation manner

[0024] Referring to Figures 1-4 , the quick disassembly device for the top drive wash pipe provided by the utility model: includes a main arm 1, a socket piece 2 is fixedly connected to the left end of the main arm 1, a first groove 3 is opened inside the main arm 1, the first groove 3 allows the pin 5 to pass through, a second groove 4 is opened on the inner wall of the first groove 3, the second groove 4 can provide a limiting effect on the movable plate 6 and the clamping plate 7, a pin 5 is arranged inside the first groove 3, the right end of the pin 5 is fixedly connected to a movable plate 6, a clamping plate 7 is fixedly connected to the outer surface of the movable plate 6, a thread groove 8 is opened on the outer surface of the main arm 1, the thread groove 8 allows the swivel ring 9 to rotate and move left and right along the main arm 1, a swivel ring 9 is threadedly connected to the outer surface of the main arm 1, the swivel ring 9 is composed of two parts spliced together, the clamping plate 7 can be wrapped inside the swivel ring 9, by rotating the swivel ring 9, the clamping plate 7 can be driven to move left and right along the main arm 1, and then the movable plate 6 and the pin 5 can be driven to move left and right. When it is necessary to screw the top drive wash pipe, align the fixed pin 11 with the groove on the outer surface of the top drive wash pipe, and then align the pin 5 with another groove position on the outer surface of the top drive wash pipe. Then rotate the swivel 9 to control the pin 5 to extend into another groove on the outer surface of the top drive wash pipe, and then the top drive wash pipe can be screwed off or tightened. A clamping groove 10 is opened on the inner surface of the swivel ring 9, and the clamping plate 7 is located inside the clamping groove 10.

[0025] The cross-sectional shape of the socket piece 2 is arc-shaped, a fixed pin 11 is fixedly connected to the inner surface of the socket piece 2, the cross-sectional shape of the fixed pin 11 is circular, the cross-sectional shape of the pin 5 is circular, the cross-sectional shapes of the fixed pin 11 and the pin 5 are the same. A force-bearing arm 12 is fixedly connected to the right end of the main arm 1, the force-bearing arm 12 is the part that bears force when being screwed. A perforated groove 13 is opened on the outer surface of the force-bearing arm 12, the perforated groove 13 is for the convenience of placing the whole device, a rope can be passed through and it can be hung up to save floor space. First anti-slip grooves 14 are opened on the upper and lower surfaces of the force-bearing arm 12, the first anti-slip grooves 14 can effectively reduce the probability of slipping and getting out of hand when screwing the force-bearing arm 12. The number of the first anti-slip grooves 14 is multiple. Second anti-slip grooves 15 are opened on the outer surface of the swivel ring 9, the second anti-slip grooves 15 make it more convenient to rotate the swivel ring 9. The number of the second anti-slip grooves 15 is multiple.

[0026] Working principle: Rotate the rotating ring 9, which can drive the clamping plate 7 to move left and right along the main arm 1, and then drive the moving plate 6 and the pin 5 to move left and right. When it is necessary to screw the top drive wash pipe, align the fixing pin 11 with the groove on the outer surface of the top drive wash pipe, and then align the pin 5 with another groove position on the outer surface of the top drive wash pipe. Then rotate the conversion 9 to control the pin 5 to extend into another groove on the outer surface of the top drive wash pipe, so as to screw and disassemble or tighten the top drive wash pipe.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Quick disassembly device for top drive swivel joint, including a main arm (1), characterized in that: A socket part (2) is fixedly connected to the left end of the main arm (1). A first groove (3) is formed inside the main arm (1). A second groove (4) is formed in the inner wall of the first groove (3). A retaining pin (5) is arranged inside the first groove (3). A moving plate (6) is fixedly connected to the right end of the retaining pin (5). A clamping plate (7) is fixedly connected to the outer surface of the moving plate (6). A threaded groove (8) is formed in the outer surface of the main arm (1). A rotating ring (9) is threadedly connected to the outer surface of the main arm (1). A clamping groove (10) is formed in the inner surface of the rotating ring (9). The clamping plate (7) is located inside the clamping groove (10).

2. The quick disassembly device for the top drive wash pipe according to claim 1, wherein: The cross-sectional shape of the socket part (2) is arc-shaped. A fixed pin (11) is fixedly connected to the inner surface of the socket part (2).

3. The quick disassembly device for the top drive swab tube according to claim 2, wherein: The cross-sectional shape of the fixed pin (11) is circular. The cross-sectional shape of the retaining pin (5) is circular. The cross-sectional shapes of the fixed pin (11) and the retaining pin (5) are the same.

4. The quick disassembly device for the top drive swab tube according to claim 1, wherein: A stress arm (12) is fixedly connected to the right end of the main arm (1). A perforated groove (13) is formed in the outer surface of the stress arm (12).

5. The quick disassembly device for the top drive swab tube according to claim 4, wherein: First anti-slip grooves (14) are formed in the upper and lower surfaces of the stress arm (12). The number of the first anti-slip grooves (14) is multiple.

6. The quick disassembly device for the top drive wash pipe according to claim 1, wherein: Second anti-slip grooves (15) are formed in the outer surface of the rotating ring (9). The number of the second anti-slip grooves (15) is multiple.

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