Mechanical speed regulating device for drill rod power tongs

Abstract

The utility model discloses a mechanical speed regulating device of a drill rod power tong, which belongs to the field of drill rod power tong equipment and comprises a base, the power tong is arranged above the base, a positioning disc is mounted on the base, the power tong is rotatably connected onto the positioning disc, a transmission disc is arranged below the positioning disc, and the transmission disc is rotatably connected onto the base. A rotating disc is coaxially and rotationally connected into the transmission disc; a plurality of arc-shaped grooves are formed in the rotating disc, strip-shaped holes corresponding to the arc-shaped grooves are formed in the transmission disc, positioning rods are jointly connected in the strip-shaped holes and the arc-shaped grooves in a sliding mode, moving blocks are connected in the strip-shaped holes in a sliding mode, the moving blocks are fixedly connected with the positioning rods, and a mounting frame is fixedly connected to the base. A motor is mounted in the mounting frame; through cooperative use of all the devices, the purposes of speed regulation and driving can be achieved through one driving source.

Description

Technical Field

[0001] This utility model relates to the technical field of drill pipe power tongs, specifically a mechanical speed regulating device for drill pipe power tongs. Background Technology

[0002] Drill pipe power tongs are core tools used in oil drilling, geological exploration, and other fields to tighten or loosen drill pipe threaded connections. Their main function is to replace traditional manual operation with efficient and precise mechanical manipulation, ensuring the safety of drill pipe connections and improving operational efficiency.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220487521U) discloses a mechanical speed regulating device for a drill pipe power tong. The device includes a base plate, with a supporting shell fixedly connected to the top of the base plate via two mounting bolts. A ring of rollers is rotatably connected to the inner bottom wall of the supporting shell, and a power tong is rotatably connected to the inner wall of the supporting shell. This device, through the configuration of a first motor, a second motor, a first gear disc, a second gear disc, a power gear disc, a first rotating shaft, and a second rotating shaft, and by utilizing the different speeds of the first and second servo motors, can form a drive structure that constitutes a mechanical speed regulating device for the drill pipe power tong. This allows for convenient adjustment of the power tong's rotation speed and is easy to use. Furthermore, the device includes an oil inlet, a storage groove, and an oil collection box, enabling timed oil lubrication of the first gear disc, the second gear disc, and the power gear disc via the oil inlet.

[0004] Although the aforementioned patent effectively reduces gear wear and increases the service life of the drill pipe power tong by setting up a first motor, a second motor, a first gear disk, a second gear disk, a power gear disk, a first rotating shaft, and a second rotating shaft, the coordination of multiple motors and gears in the speed adjustment process not only results in a complex structure and significant transmission losses due to the coordination of multiple gears, but also in high power consumption during the speed adjustment process.

[0005] Therefore, this utility model provides a mechanical speed regulating device for drill pipe power tongs to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a mechanical speed regulating device for a drill pipe power tong, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a mechanical speed regulating device for a drill pipe power tong, comprising a base, a power tong disposed on the upper part of the base, a positioning plate mounted on the base, the power tong being rotatably connected to the positioning plate, a transmission plate disposed below the positioning plate, and a turntable rotatably connected coaxially within the transmission plate; the turntable having multiple arc-shaped grooves, the transmission plate having corresponding slotted holes, a positioning rod being slidably connected within the slotted holes and arc-shaped grooves, a moving block being slidably connected within the slotted holes, and the moving block being fixedly connected to the positioning rod.

[0010] As a preferred technical solution of this application, a mounting frame is fixedly connected to the base, a motor is installed in the mounting frame, a drive gear is fixedly connected to the output end of the motor, and a gear plate is provided on the outer wall of the transmission disk, the gear plate meshing with the drive gear.

[0011] As a preferred technical solution of this application, the transmission disk is rotatably connected with bevel teeth, the bevel teeth extend to the outside of the transmission disk, and the surface of the turntable is connected with bevel gears, the bevel gears and the bevel teeth meshing.

[0012] As a preferred technical solution of this application, the surface of the power clamp is fixedly connected with a plurality of positioning rails that cooperate with the positioning rod, and the positioning rod extends into the positioning rails.

[0013] As a preferred technical solution of this application, the positioning plate is fixedly connected to two fixing ears, a support column is fixedly connected between the fixing ears and the base, a limit ring is fixedly connected to the mounting frame, and the transmission plate and the limit ring are rotatably connected.

[0014] (III) Beneficial Effects

[0015] The motor, rotating gear, gear plate, and positioning pin work together to drive the power tongs to rotate, thereby connecting the drill rod. In addition, the rotation speed of the power tongs can be adjusted by the cooperation of bevel gears, conical gears, positioning rails, and positioning pins. This allows for speed regulation and drive functions with only one power source, reducing the number of drive sources and gears, saving electricity, and making the structure simpler and more efficient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a mechanical speed regulating device for a drill pipe power tong.

[0017] Figure 2 A cross-sectional structural diagram of a mechanical speed regulating device for a drill pipe power tong;

[0018] Figure 3 This is a schematic diagram of the meshing of bevel gears and conical gears in a mechanical speed regulating device for a drill pipe power tong;

[0019] Figure 4 This is a schematic diagram of a moving block and a positioning rod in a mechanical speed regulating device for a drill pipe power tong;

[0020] Figure 5 This is a schematic diagram of an arc-shaped groove and a positioning rod in a mechanical speed regulating device for a drill pipe power tong.

[0021] In the picture:

[0022] 1. Base; 2. Mounting frame; 3. Positioning plate; 4. Fixing lug; 5. Support column; 6. Power clamp; 7. Motor; 8. Drive gear; 9. Gear plate; 10. Turntable; 11. Transmission plate; 12. Limiting ring; 13. Bevel gear; 14. Conical gear; 15. Positioning rail; 16. Strip hole; 17. Arc groove; 18. Moving block; 19. Positioning rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a mechanical speed regulating device for a drill pipe power tong, such as... Figure 1-5 As shown, the utility model includes a base 1, a power clamp 6 is arranged on the top of the base 1, a positioning plate 3 is installed on the base 1, the power clamp 6 is rotatably connected to the positioning plate 3, a transmission plate 11 is arranged below the positioning plate 3, and a turntable 10 is rotatably connected coaxially inside the transmission plate 11; the turntable 10 has multiple arc-shaped grooves 17, and the transmission plate 11 has strip-shaped holes 16 corresponding to the arc-shaped grooves 17; a positioning rod 19 is slidably connected in both the strip-shaped hole 16 and the arc-shaped groove 17; a moving block 18 is slidably connected in the strip-shaped hole 16; and the moving block 18 and the positioning rod 19 are fixedly connected.

[0025] like Figure 2 As shown, a mounting frame 2 is fixedly connected to the base 1, and a motor 7 is installed inside the mounting frame 2. A drive gear 8 is fixedly connected to the output end of the motor 7. A gear disk 9 is provided on the outer wall of the transmission disk 11. The gear disk 9 meshes with the drive gear 8. The motor 7 drives the drive gear 8 to rotate, and the drive gear 8 further drives the gear disk 9 that meshes with it to rotate, thereby driving the transmission disk 11 fixed with the gear disk 9 to rotate.

[0026] like Figure 4As shown, the surface of the power clamp 6 is fixedly connected with multiple positioning rails 15 that cooperate with the positioning rod 19, and the positioning rod 19 extends into the positioning rails 15.

[0027] like Figure 3-4 As shown, a bevel gear 13 is rotatably connected inside the transmission disk 11, extending to the outside of the transmission disk 11. A bevel gear 14 is connected to the surface of the turntable 10, meshing with the bevel gear 13. A groove is provided on the end surface of the bevel gear 13. A wrench can be engaged with the groove to drive the bevel gear 13 to rotate. The rotation of the bevel gear 13 further drives the meshing bevel gear 14 to rotate, which in turn drives the turntable 10 to rotate, thereby driving the positioning rod 19 on the turntable 10 to rotate synchronously. Since the positioning rod 19 is fixedly connected to the moving block 18, it drives the moving block 18 to move within the strip hole 16. As the moving block 18 moves, it drives the positioning rod 19 to slide within the positioning track 15, ultimately driving the power clamp 6 to rotate through the positioning track 15. By adjusting the different positions of the positioning rod 19 within the positioning track 15, the rotation speed of the power clamp 6 can be adjusted. The closer the positioning rod 19 is to the edge of the transmission disk 11, the faster its rotation speed.

[0028] like Figure 1-2 As shown, two fixed ears 4 are fixedly connected to the positioning plate 3, and a support column 5 is fixedly connected between the fixed ears 4 and the base 1. A limit ring 12 is fixedly connected to the mounting frame 2, and the transmission plate 11 and the limit ring 12 are rotatably connected.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mechanical speed regulating device for a drill pipe power tong, comprising a base (1), characterized in that: A power clamp (6) is provided above the base (1), a positioning plate (3) is installed on the base (1), the power clamp (6) is rotatably connected to the positioning plate (3), a transmission plate (11) is provided below the positioning plate (3), and a turntable (10) is rotatably connected to the transmission plate (11) on the same axis. The turntable (10) has multiple arc-shaped grooves (17), and the transmission disc (11) has a strip hole (16) corresponding to the arc-shaped groove (17). A positioning rod (19) is slidably connected in the strip hole (16) and the arc-shaped groove (17). A moving block (18) is slidably connected in the strip hole (16). The moving block (18) and the positioning rod (19) are fixedly connected.

2. The mechanical speed regulating device for a drill pipe power tong according to claim 1, characterized in that: A mounting frame (2) is fixedly connected to the base (1), and a motor (7) is installed inside the mounting frame (2). A drive gear (8) is fixedly connected to the output end of the motor (7). A gear plate (9) is provided on the outer wall of the transmission disk (11), and the gear plate (9) meshes with the drive gear (8).

3. The mechanical speed regulating device for a drill pipe power tong according to claim 1, characterized in that: The transmission disk (11) is rotatably connected to a bevel gear (13), which extends to the outside of the transmission disk (11). The surface of the turntable (10) is connected to a bevel gear (14), which meshes with the bevel gear (14).

4. The mechanical speed regulating device for a drill pipe power tong according to claim 1, characterized in that: The surface of the power clamp (6) is fixedly connected with a plurality of positioning rails (15) that cooperate with the positioning rod (19), and the positioning rod (19) extends into the positioning rails (15).

5. The mechanical speed regulating device for a drill pipe power tong according to claim 2, characterized in that: Two fixing ears (4) are fixedly connected to the positioning plate (3), and a support column (5) is fixedly connected between the fixing ears (4) and the base (1). A limit ring (12) is fixedly connected to the mounting frame (2), and the transmission plate (11) and the limit ring (12) are rotatably connected.

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