Drill rod power tongs with pneumatic control protection device
By designing air-controlled protection devices in the drill rod power clamp, using air pressure support and airbag clamp for sealing protection, the problems of tee-vent switch leaking or series air, clamping cylinder piston rod deformation are solved, and the upper and lower notch alignment and long-term operation of drill rod power clamp are achieved.
Patent Information
- Application Number
- CN202421931713.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing drill rod power clamps have problems such as air leakage or series air between the three-ventilator switch, deformation of the piston rod of the clamping cylinder, rust, wear of the piston and seals, resulting in the misalignment of the upper and lower notches, and the transfer cylinder piston rod cannot be returned, resulting in the failure of the series air between the two-digit three-ventilator switches.
A drill rod power clamp with air control protection device was designed. By setting up an open gear frame and a built-in ring, the air pressure end and connecting pipe provide air pressure support, and the expansion air bag clamp is sealed and protected; at the same time, the air pressure assembly is realized through the movement of the bottom air bag ring and isolation ring, ensuring the alignment of the upper and lower notches and preventing failure of air series.
It effectively avoids air leakage or series air of the three-ventilator switch, prevents deformation, rust, and wear of pistons and seals, ensures alignment of upper and lower notches, and improves the service life and efficiency of drill rod power clamps.
Smart Images
Figure CN223018584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill pipe power tongs, in particular to a drill pipe power tong with a pneumatic control protection device. Background Technique
[0002] The air storage tank of the drill pipe power tong: stores gas and suspends and levels the hydraulic and pneumatic tong; the control assembly: the control assembly is composed of a manual reversing valve, a relief valve and a torque meter; the manual reversing valve is used for operating the make-up and break-out, the relief valve is used to adjust the make-up pressure, and the torque meter is used to display the make-up and break-out torque; the oil motor: transmits power to the planetary gearbox, and the planetary gearbox: consists of an upper planetary gear and a lower planetary gear to realize the conversion of high and low speeds; the clamping cylinder: mainly clamps the lower tong and rotates the upper tong.
[0003] In the existing drill pipe power tong, the two-position three-way air switch leaks air or has air cross-leakage, the piston rod of the clamping cylinder is deformed and rusted, the piston and the seal are worn, resulting in the upper and lower notches not being aligned; the piston rod of the transfer cylinder is deformed and cannot return, resulting in the two-position three-way air switch being out of order due to air cross-leakage. Content of the Utility Model
[0004] The purpose of the utility model is to provide a drill pipe power tong with a pneumatic control protection device to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution. The drill pipe power tong with a pneumatic control protection device: includes a door frame protection mechanism and fastening bolts. The top of the door frame protection mechanism is provided with an open gear rack, and the top of the open gear rack is installed with a pneumatic control protection mechanism. The fastening bolts penetrate through the top of the pneumatic control protection mechanism. A pneumatic pipe is installed at the front end of the pneumatic control protection mechanism. The front end of the door frame protection mechanism is connected to a pneumatic pressure end, and a connecting pipe is movably installed inside the pneumatic pressure end. Through bolts are installed on both sides of the open gear rack.
[0006] Preferably, the open gear rack and the pneumatic control protection mechanism are fastened together by fastening bolts.
[0007] Preferably, the door frame protection mechanism and the open gear rack are driven by air pressure through the pneumatic pressure end and the connecting pipe for clamping.
[0008] Preferably, the door frame protection mechanism includes an inner ring, a positioning ring and an airbag clamp. The positioning ring is arranged at the top of the inner ring, and the airbag clamp is fixed inside the positioning ring.
[0009] Preferably, the inner ring and the airbag clamp are clamped by air pressure expansion through the pneumatic pressure end.
[0010] Preferably, the pneumatic control protection mechanism includes an isolation ring and a bottom airbag ring. The bottom airbag ring is arranged at the bottom of the isolation ring.
[0011] Preferably, the isolation ring and the bottom airbag ring are movably connected, and the bottom airbag ring is inflated and clamped through a pneumatic tube.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. By providing an opening gear rack and an inner ring in the present utility model, when the opening gear rack is movably installed at the top of the door frame protection mechanism and the air control protection mechanism assembly is threaded through the opening gear rack by a fastening bolt, air pressure support is provided through the air pressure end and the connecting pipe, and the airbag fixture inside the expandable inner ring can be inflated. The airbag fixture can be inflated and clamped inside the opening gear rack and the inner ring for sealing protection, avoiding air leakage or gas cross - leakage of the three - way air switch, preventing deformation, rust of the piston rod of the clamping cylinder, and wear of the piston and seal.
[0014] 2. By providing a bottom airbag ring and an isolation ring in the present utility model, they are installed in a movable manner at the connection between the air control protection mechanism assembly and the opening gear rack, and are assembled by air pressure through a pneumatic tube. The bottom airbag ring in the isolation ring can be inflated and filled into the connection of the opening gear rack, facilitating sealing when the upper and lower notches are not aligned; assisted by the piston rod of the transfer cylinder, the isolation ring and the bottom airbag ring can protect the two - position three - way air switch, preventing gas cross - leakage and malfunction. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three - dimensional structure schematic diagram of the present utility model;
[0016] Figure 2 is a structural schematic diagram of the door frame protection mechanism of the present utility model;
[0017] Figure 3 is a structural schematic diagram of the air control protection mechanism of the present utility model.
[0018] In the figure: 1. Door frame protection mechanism; 2. Opening gear rack; 3. Air control protection mechanism; 4. Fastening bolt;
[0019] 5. Pneumatic tube; 6. Through bolt; 7. Air pressure end; 8. Connecting pipe; 9. Inner ring; 10. Positioning ring;
[0020] 11. Airbag fixture; 12. Isolation ring; 13. Bottom airbag ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of them, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0022] Embodiment 1
[0023] Please refer to Figures 1 - 3 , the present utility model provides a technical solution, including a door frame protection mechanism 1 and a fastening bolt 4. An open gear rack 2 is provided at the top of the door frame protection mechanism 1, and a pneumatic control protection mechanism 3 is installed at the top of the open gear rack 2. The fastening bolt 4 penetrates through the top of the pneumatic control protection mechanism 3. A pneumatic tube 5 is installed at the front end of the pneumatic control protection mechanism 3. A pressure end 7 is connected to the front end of the door frame protection mechanism 1, and a connecting tube 8 is movably installed inside the pressure end 7. Through bolts 6 are installed on both sides of the open gear rack 2, and the open gear rack 2 is movably installed at the top of the door frame protection mechanism 1, so that the components of the pneumatic control protection mechanism 3 are threaded through the open gear rack 2 by the fastening bolt 4. Then, the pneumatic tube 5 is movably installed at the front ends of the open gear rack 2 and the pneumatic control protection mechanism 3 to provide sealed air pressure. The through bolts 6 are threaded through the open gear rack 2 for locking. The user can movably install the pressure end 7 and the connecting tube 8 at the front end of the door frame protection mechanism 1 for sealed locking. The open gear rack 2 and the pneumatic control protection mechanism 3 are fastened together by the fastening bolt 4. The components of the open gear rack 2 and the pneumatic control protection mechanism 3 can be fastened and installed by threading with the fastening bolt 4, which is convenient for the disassembly and replacement of the two-position three-way air switch. The door frame protection mechanism 1 and the open gear rack 2 perform air pressure-driven clamping through the pressure end 7 and the connecting tube 8. The user can fasten and install the air pressure device on the pressure end 7 and the connecting tube 8. The pressure end 7 and the connecting tube 8 play a role of sealed fastening, which is convenient for the pressure end 7 and the connecting tube 8 to perform sealed locking and protection on the components of the door frame protection mechanism 1 and the open gear rack 2.
[0024] Embodiment 2
[0025] As Figure 2 and Figure 3As shown in the figure, the door frame protection mechanism 1 includes an inner ring 9, a positioning ring 10 and an airbag clamp 11. The top of the inner ring 9 is provided with a positioning ring 10. The inner side of the positioning ring 10 is fixed with an airbag clamp 11. The inner ring 9 and the airbag clamp 11 are clamped by air pressure expansion at the air pressure end 7. The airbag clamp 11 is movably installed inside the inner ring 9, so that the positioning ring 10 penetrates through the inner ring 9 for positioning and buckling. The inner ring 9 can be protected and installed on the airbag clamp 11. When the opening gear rack 2 is movably installed at the top of the door frame protection mechanism 1 and the air control protection mechanism 3 assembly is threaded through the opening gear rack 2 by the fastening bolt 4, air pressure support is provided through the air pressure end 7 and the connecting pipe 8, and the airbag clamp 11 inside the inner ring 9 can be expanded. The airbag clamp 11 can expand and clamp inside the opening gear rack 2 and the inner ring 9 for sealing protection, avoiding air leakage or gas cross-talk of the three-way air switch, preventing deformation, rust of the clamping cylinder piston rod, and wear of the piston and seals, etc. The air control protection mechanism 3 includes an isolation ring 12 and a bottom airbag ring 13. The bottom of the isolation ring 12 is provided with a bottom airbag ring 13. The isolation ring 12 and the bottom airbag ring 13 are movably connected. The bottom airbag ring 13 is clamped by air pressure expansion through the pneumatic pipe 5. The isolation ring 12 movably covers the outside of the bottom airbag ring 13. The bottom airbag ring 13 and the isolation ring 12 are installed at the connection between the air control protection mechanism 3 assembly and the opening gear rack 2 in a movable manner, and are assembled by air pressure through the pneumatic pipe 5. The bottom airbag ring 13 in the isolation ring 12 can expand and fill the connection of the opening gear rack 2, facilitating sealing when the upper and lower notches are not aligned. Driven by the auxiliary movement of the transfer cylinder piston rod, the isolation ring 12 and the bottom airbag ring 13 can protect the two-position three-way air switch to prevent gas cross-talk and malfunction, etc.
[0026] During actual use, the pneumatic pipe 5 is movably installed at the front ends of the opening gear rack 2 and the air control protection mechanism 3 to provide sealing air pressure, so that the through bolt 6 is threaded through the opening gear rack 2 for locking. The user can movably install the air pressure end 7 and the connecting pipe 8 at the front end of the door frame protection mechanism 1 for sealing and locking. The isolation ring 12 movably covers the outside of the bottom airbag ring 13. The bottom airbag ring 13 and the isolation ring 12 are installed at the connection between the air control protection mechanism 3 assembly and the opening gear rack 2 in a movable manner, and are assembled by air pressure through the pneumatic pipe 5. The bottom airbag ring 13 in the isolation ring 12 can expand and fill the connection of the opening gear rack 2, facilitating sealing when the upper and lower notches are not aligned. The inner ring 9 can be protected and installed on the airbag clamp 11. When the opening gear rack 2 is movably installed at the top of the door frame protection mechanism 1 and the air control protection mechanism 3 assembly is threaded through the opening gear rack 2 by the fastening bolt 4, air pressure support is provided through the air pressure end 7 and the connecting pipe 8, and the airbag clamp 11 inside the inner ring 9 can be expanded. The airbag clamp 11 can expand and clamp inside the opening gear rack 2 and the inner ring 9 for sealing protection.
[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A drill pipe power tong with a pneumatic protection device, characterized in that: The drill pipe power tongs with a pneumatic protection device include a door frame protection mechanism (1) and a fastening bolt (4); an open gear rack (2) is arranged at the top of the door frame protection mechanism (1), and a pneumatic protection mechanism (3) is installed at the top of the open gear rack (2); the fastening bolt (4) penetrates the top of the pneumatic protection mechanism (3); a pneumatic tube (5) is installed at the front end of the pneumatic protection mechanism (3); the front end of the door frame protection mechanism (1) is connected to a pneumatic end (7), and a connecting tube (8) is movably installed inside the pneumatic end (7); and through bolts (6) are installed on both sides of the open gear rack (2).
2. A drill pipe power tongs with a pneumatic protection device according to claim 1, characterized in that: The open gear rack (2) and the air control protection mechanism (3) are fastened together via a fastening bolt (4).
3. The drill pipe power tongs with a pneumatic protection device according to claim 1, characterized in that: The door frame protection mechanism (1) and the opening gear rack (2) are pneumatically driven and clamped via a pneumatic end (7) and a connecting pipe (8).
4. The drill pipe power tongs with a pneumatic protection device according to claim 1, characterized in that: The door frame protection mechanism (1) comprises an inner ring (9), a positioning ring (10) and an airbag clamp (11); the top end of the inner ring (9) is provided with a positioning ring (10), and the inner side of the positioning ring (10) is fixed with the airbag clamp (11).
5. A drill pipe power tongs with a pneumatic protection device according to claim 4, characterized in that: The built-in ring (9) and the airbag clamp (11) are clamped by air pressure expansion through the air pressure end (7).
6. The drill pipe power tongs with a pneumatic protection device according to claim 1, characterized in that: The air-controlled protection mechanism (3) comprises an isolation ring (12) and a bottom airbag ring (13), and the bottom end of the isolation ring (12) is provided with the bottom airbag ring (13).
7. A drill pipe power tongs with a pneumatic protection device according to claim 6, characterized in that: The isolation ring (12) and the bottom airbag ring (13) are movably connected, and the bottom airbag ring (13) is expanded and clamped by the pneumatic tube (5) through air pressure.