Heavy steel pipe flame cutting equipment

Abstract

The utility model discloses heavy steel pipe flame cutting equipment which comprises a base, a frame is fixedly connected to the upper end of the base, the outer wall of a rotating ring makes contact with the inner walls of multiple sets of pulleys in an attached mode, multiple sets of tooth parts are distributed on the peripheries of the outer walls of the pulleys, a gear is rotationally connected to the outer wall of the frame, and the gear is meshed with the multiple sets of tooth parts. And the outer wall of the rotating ring is fixedly connected with a connecting frame, the outer wall of the connecting frame is rotationally connected with a cutting knife, and the outer wall of the connecting frame is provided with a driving mechanism for driving the cutting knife to rotate. A meshing transmission structure of the servo motor driving gear and the pulley tooth portion replaces a traditional manual ratchet wheel driving mode, an operator can achieve circumferential rotation of the rotating ring without continuously applying torque, the labor intensity of the operator is reduced, the muscle strain problem caused by long-time operation is effectively avoided, and the working efficiency is improved. And the equipment is more suitable for long-time cutting operation of heavy steel pipes.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, and in particular to heavy-duty steel pipe flame cutting equipment. Background Technology

[0002] In the field of steel structure, steel pipes, as one of the steel components, have large diameters, lengths and weights, making it difficult or impossible to cut the pipe ends using common cutting machine tools. Currently, most existing cutting methods use plasma cutting torches or flame cutting torches to cut the steel pipes at an angle along the circumference.

[0003] Chinese utility model patent CN219852542U discloses a circular pipe cutting device. In use, the ratchet disc is rotated relative to the ring frame by a handle, thereby realizing the circumferential rotation of the cutting torch. However, this device has certain drawbacks. For example, manually driving the ratchet disc requires continuous application of torque. Especially when cutting thick-walled steel pipes, a single cut may require dozens of rotations, which can easily cause muscle strain for the operator. Therefore, a heavy-duty steel pipe flame cutting device is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heavy-duty steel pipe flame cutting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Heavy-duty steel pipe flame cutting equipment includes a base, a frame fixedly connected to the upper end of the base, a rotating ring rotatably connected inside the frame, pulleys fixedly connected to the four corners of the base via support plates, the outer wall of the rotating ring in close contact with the inner walls of multiple sets of pulleys, multiple sets of teeth distributed circumferentially on the outer wall of the pulleys, a gear rotatably connected to the outer wall of the frame, the gear meshing with multiple sets of teeth, a connecting frame fixedly connected to the outer wall of the rotating ring, a cutting blade rotatably connected to the outer wall of the connecting frame, and a drive mechanism for driving the cutting blade to rotate installed on the outer wall of the connecting frame.

[0007] Preferably, the driving mechanism includes an electric telescopic rod II rotatably connected to the lower end of the connecting frame, a connecting plate is fixedly connected to the lower end of the cutter, and the telescopic end of the electric telescopic rod II is rotatably connected to the connecting plate.

[0008] Preferably, the outer wall of the frame is slidably connected with two sets of clamping plates, the inner and outer walls of the two sets of clamping plates are both arc-shaped, and the two sets of clamping plates are on the same axis as the rotating ring.

[0009] Preferably, two sets of side plates are fixedly connected to the outer wall of the frame, and an electric telescopic rod is fixedly connected to the outer wall of the side plate. The telescopic section of the electric telescopic rod passes through the side plate and is fixedly connected to its adjacent clamping plate.

[0010] Preferably, each set of pulleys has a groove on its outer wall and a circular cross-section, and both sets of clamping plates have anti-slip pads on their adjacent sides.

[0011] Preferably, a servo motor is fixedly connected to the outer wall of the frame, and the output shaft of the servo motor is coaxially and fixedly connected to the gear.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model replaces the traditional manual ratchet drive method with a servo motor-driven gear and pulley tooth meshing transmission structure. Operators can achieve circumferential rotation of the ring without continuously applying torque, reducing their labor intensity and effectively avoiding muscle strain caused by long-term operation, making the equipment more suitable for long-term cutting operations of heavy steel pipes.

[0014] 2. This utility model uses two sets of arc-shaped clamping plates that can slide radially along the frame under the drive of an electric telescopic rod to form an encircling automatic centering and clamping for heavy steel pipes of different diameters. Combined with the anti-slip pads on the inner wall of the clamping plates, it enhances the reliability of the steel pipe fixing, effectively counteracts cutting vibration and reaction force, avoids the problem of cut deviation or surface roughness caused by the swaying of the steel pipe, and improves the stability of the cutting trajectory and processing accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the heavy-duty steel pipe flame cutting equipment proposed in this utility model;

[0016] Figure 2 for Figure 1 Front view of the structure.

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the connecting frame, the cutter and the electric telescopic pole.

[0018] In the diagram: 1. Base; 2. Frame; 3. Rotary ring; 4. Pulley; 5. Support plate; 6. Toothed part; 7. Gear; 8. Servo motor; 9. Side plate; 10. Electric telescopic rod one; 11. Clamping plate; 12. Connecting frame; 13. Electric telescopic rod two; 14. Connecting plate; 15. Cutting blade. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3Heavy-duty steel pipe flame cutting equipment includes a base 1, a frame 2 fixedly connected to the upper end of the base 1, a rotating ring 3 rotatably connected inside the frame 2, pulleys 4 fixedly connected to the four corners of the base 1 via support plates 5, the outer wall of the rotating ring 3 is in close contact with the inner wall of multiple sets of pulleys 4, multiple sets of teeth 6 are distributed around the outer wall of the pulleys 4, a gear 7 is rotatably connected to the outer wall of the frame 2, the gear 7 meshes with multiple sets of teeth 6, a connecting frame 12 is fixedly connected to the outer wall of the rotating ring 3, a cutter 15 is rotatably connected to the outer wall of the connecting frame 12, and a drive mechanism for driving the cutter 15 to rotate is installed on the outer wall of the connecting frame 12;

[0021] Furthermore, through the meshing transmission structure of gear 7 and pulley 4 teeth 6, the rotating ring 3 can be synchronously driven to rotate circumferentially by the rotation of the drive gear 7. Compared with the traditional manual ratchet drive method, this significantly reduces the labor intensity of the operator and avoids muscle strain caused by continuous torque application. At the same time, the close contact design between pulley 4 and rotating ring 3 can effectively disperse the radial load generated during the cutting process, improve the stability of the equipment during operation, and is suitable for long-term continuous cutting operations of heavy steel pipes.

[0022] The drive mechanism includes an electric telescopic rod 13 rotatably connected to the lower end of the connecting frame 12, and a connecting plate 14 fixedly connected to the lower end of the cutter 15. The telescopic section end of the electric telescopic rod 13 is rotatably connected to the connecting plate 14.

[0023] Furthermore, the electric telescopic rod 13 drives the cutter 15 to rotate through the push-pull connecting plate 14, which can precisely control the tilt angle and swing amplitude of the cutter 15 to meet the needs of different bevel cutting processes, such as V-shaped and X-shaped bevels.

[0024] The outer wall of frame 2 is slidably connected with two sets of clamping plates 11. The inner and outer walls of the two sets of clamping plates 11 are both arc-shaped, and the two sets of clamping plates 11 are on the same axis as the rotating ring 3.

[0025] Furthermore, the two sets of arc-shaped clamping plates 11 are coaxially arranged with the rotating ring 3, which can form a ring-shaped fixation for heavy steel pipes of different diameters through clamping action. The arc-shaped inner wall design can closely fit the outer surface of the steel pipe, effectively offsetting the vibration and reaction force generated during the cutting process, ensuring the stability of the cutting trajectory, and reducing the problem of cut deviation or excessive surface roughness caused by the shaking of the steel pipe.

[0026] Two sets of side plates 9 are fixedly connected to the outer wall of frame 2. An electric telescopic rod 10 is fixedly connected to the outer wall of side plate 9. The telescopic section of electric telescopic rod 10 passes through side plate 9 and is fixedly connected to its adjacent clamping plate 11.

[0027] Furthermore, the electric telescopic rod 10 can drive the clamping plate 11 to slide radially along the frame 2, realizing automatic centering and clamping of steel pipes of different diameters without the need for manual adjustment of the clamping position.

[0028] Each set of pulleys 4 has grooves on its outer wall and a circular cross-section. Both sets of clamping plates 11 have anti-slip pads on their close side.

[0029] Furthermore, the circular groove on the outer wall of the pulley 4 fits into the outer wall of the rotating ring 3 to form a limiting and guiding structure, which can effectively constrain the axial movement of the rotating ring 3 and improve the coaxiality and stability of the rotating ring 3 during rotation.

[0030] A servo motor 8 is fixedly connected to the outer wall of frame 2, and the output shaft of servo motor 8 is fixedly connected to gear 7 on the same axis.

[0031] In this invention, the device is used as follows: The operator places a heavy steel pipe between two sets of clamping plates 11, ensuring that the steel pipe and the rotating ring 3 are on the same axis. Then, the operator activates the electric telescopic rod 10. The telescopic section of the electric telescopic rod 10 begins to work, pushing the adjacent clamping plates 11 to slide radially along the frame 2. Because the inner and outer walls of both sets of clamping plates 11 are arc-shaped and coaxial with the rotating ring 3, as the electric telescopic rod 10 pushes, the two sets of clamping plates 11 gradually move closer to the steel pipe, ultimately forming a ring-like fixation. The anti-slip pads on the side of the clamping plates 11 that are close to the steel pipe increase the friction with the surface of the steel pipe, further enhancing the reliability of the fixation and preventing the steel pipe from shaking during cutting.

[0032] After the steel pipe is fixed in place, the operator starts the servo motor 8. The output shaft of the servo motor 8 drives the gear 7, which is fixedly connected to it on the same axis, to rotate. Since the gear 7 meshes with the multiple sets of teeth 6 distributed around the outer wall of the pulley 4, it drives the rotating ring 3 to rotate circumferentially within the frame 2. This transmission structure, which uses the meshing of the gear 7 and the teeth 6 of the pulley 4, reduces the operator's workload and avoids muscle strain caused by continuous torque application compared to the traditional manual ratchet drive method. At the same time, the close contact design between the pulley 4 and the rotating ring 3 effectively disperses the radial load generated during the cutting process, improves the stability of the equipment during operation, and is suitable for long-term continuous cutting operations of heavy steel pipes.

[0033] When the rotating ring 3 rotates, the connecting frame 12 fixedly connected to its outer wall rotates accordingly, thereby driving the cutter 15 to move around the circumference of the steel pipe. When beveling is required on the steel pipe, the operator activates the electric telescopic rod 13. The electric telescopic rod 13 drives the cutter 15 to rotate through the push-pull connecting plate 14, which can precisely control the tilt angle and swing amplitude of the cutter 15 to meet the needs of different beveling processes, such as V-shaped and X-shaped beveling. This automated cutter 15 angle control method avoids angle deviations caused by manual operation and improves cutting accuracy and consistency.

[0034] Throughout the cutting process, the circular groove on the outer wall of pulley 4 fits snugly against the outer wall of rotating ring 3, effectively constraining the axial movement of rotating ring 3, improving the coaxiality and stability of rotating ring 3, and ensuring the stability of the cutting trajectory of cutter 15. After cutting, the operator controls the electric telescopic rod 10 to retract, causing clamping plate 11 to release the steel pipe so that the cut steel pipe can be removed.

[0035] 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 heavy-duty steel pipe flame cutting device, comprising a base (1), characterized in that, A frame (2) is fixedly connected to the upper end of the base (1). A rotating ring (3) is rotatably connected inside the frame (2). Pulleys (4) are fixedly connected to the four corners of the base (1) through support plates (5). The outer wall of the rotating ring (3) is in close contact with the inner wall of multiple sets of pulleys (4). Multiple sets of teeth (6) are distributed around the outer wall of the pulleys (4). A gear (7) is rotatably connected to the outer wall of the frame (2). The gear (7) meshes with multiple sets of teeth (6). A connecting frame (12) is fixedly connected to the outer wall of the rotating ring (3). A cutter (15) is rotatably connected to the outer wall of the connecting frame (12). A drive mechanism for driving the cutter (15) to rotate is installed on the outer wall of the connecting frame (12).

2. The heavy-duty steel pipe flame cutting equipment according to claim 1, characterized in that, The driving mechanism includes an electric telescopic rod II (13) rotatably connected to the lower end of the connecting frame (12), and a connecting plate (14) is fixedly connected to the lower end of the cutter (15). The telescopic end of the electric telescopic rod II (13) is rotatably connected to the connecting plate (14).

3. The heavy-duty steel pipe flame cutting equipment according to claim 2, characterized in that, The outer wall of the frame (2) is slidably connected with two sets of clamping plates (11). The inner and outer walls of the two sets of clamping plates (11) are both arc-shaped, and the two sets of clamping plates (11) are on the same axis as the rotating ring (3).

4. The heavy-duty steel pipe flame cutting equipment according to claim 3, characterized in that, The frame (2) has two sets of side plates (9) fixedly connected to its outer wall. The side plates (9) have an electric telescopic rod (10) fixedly connected to their outer walls. The telescopic section of the electric telescopic rod (10) passes through the side plate (9) and is fixedly connected to its adjacent clamping plate (11).

5. The heavy-duty steel pipe flame cutting equipment according to claim 4, characterized in that, Each set of pulleys (4) has a groove on its outer wall and a circular cross-section. Both sets of clamping plates (11) have anti-slip pads on their adjacent sides.

6. The heavy-duty steel pipe flame cutting equipment according to claim 5, characterized in that, A servo motor (8) is fixedly connected to the outer wall of the frame (2), and the output shaft of the servo motor (8) is coaxially fixedly connected to the gear (7).

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