Large-diameter thick-wall steel pipe high-speed cutting mechanism with smooth notch

By designing a high-speed cutting device including a main frame, a slide plate, a clamping structure and a cutting mechanism, the problem of uneven cutting edges of large-diameter thick-walled steel pipes is solved, and the cutting quality and efficiency are improved.

CN223353091UActive Publication Date: 2025-09-19SHANDONG DONGHAI STEEL PIPE CO LTD
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Patent Information

Application Number
CN202422814511.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-09-19
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

During the cutting process of large-diameter thick-walled steel pipes, uneven cuts lead to incomplete steel pipe connections, affecting project quality.

Method used

A high-speed cutting device consisting of a main frame, a slide, a clamping structure and a cutting mechanism was designed. The stable clamping of the steel pipe was achieved through a motor-driven bevel gear system, and multiple saw blades and electric push rods were used to ensure a smooth incision.

Benefits of technology

The smoothness of the steel pipe cut is achieved, the cutting quality is improved, the damage to the device caused by the falling steel pipe is avoided, and the cutting efficiency and accuracy are improved.

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Abstract

The utility model relates to the technical field of steel pipe cutting, and discloses a large-caliber thick-wall steel pipe high-speed cutting mechanism with a smooth notch, which comprises a main body frame, a sliding plate is movably connected in the main body frame, a cutting mechanism is arranged on the front surface of the sliding plate, and a mounting plate is fixedly connected on the rear surface of the sliding plate. According to the steel pipe clamping device, the first motors on the left portion and the right portion are started at the same time through the external controller, the first bevel gears and the second bevel gears fixedly connected to the output shafts of the first motors rotate, and therefore the gears are indirectly driven to rotate, the left rack and the right rack are driven to move relatively, and the steel pipe is clamped by the clamping structure. Compared with the prior art, no better clamping structure exists when the steel pipe is cut, manpower is mostly needed, the steel pipe can be firmly fixed due to the width value and the clamping degree of the clamping bent plate, and therefore the effect that a notch is smooth when the cutting mechanism cuts the steel pipe is achieved, and the quality of a cut product is higher.
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Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe cutting, and more specifically, to a high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth incisions. Background Art

[0002] Large-diameter, thick-walled steel pipes are often used in large-scale steel structure construction as the main support components. For example, in piling projects for bridges, submarines, and high-rise buildings, large-diameter, thick-walled steel pipes can provide strong support to ensure the stability and safety of the structure.

[0003] However, in these projects, it is often necessary to connect steel pipes through fixed structures. However, during the cutting process of steel pipes, it is particularly important to ensure a smooth incision, which is related to the integrity of the connection between steel pipes. In traditional technology, when cutting steel pipes, due to the weight of the steel pipes, it is easy for the cutting tool to be difficult to ensure a smooth incision during cutting, thereby greatly reducing the quality of the project construction. Therefore, it is necessary to improve and optimize the high-speed cutting mechanism of large-diameter thick-walled steel pipes so that people can get the desired high-quality steel pipes. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a high-speed cutting mechanism for large-diameter thick-walled steel pipes with smooth incisions, which has the advantage of smooth incisions.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-speed cutting mechanism for large-diameter thick-walled steel pipes with smooth incisions, comprising a main frame, a slide being movably connected inside the main frame, a cutting mechanism being provided on the front surface of the slide, a mounting plate being fixedly connected to the rear surface of the slide, a first motor being fixedly installed on the rear surface of the mounting plate, an output shaft of the first motor being fixedly connected to a first bevel gear, a rear surface of the slide being fixedly connected to an L-shaped fixing block, a rotating shaft being rotatably connected inside the L-shaped fixing block, a lower curved surface of the rotating shaft being fixedly connected to a second bevel gear, the second bevel gear and the first bevel gear are meshed with each other, an upper curved surface of the rotating shaft is fixedly connected to a gear, a first fixing block being fixedly installed on the middle surface of the slide, a clamping structure being movably connected inside the first fixing block, a rack being fixedly connected to the rear surface of the clamping structure, and the rack and the gear are meshed with each other.

[0006] As a preferred technical solution of the present invention: the lower rear surface of the skateboard is fixedly connected to a second fixed block, the rear of the second fixed block is hinged to a support plate, the lower surface of the support plate is fixedly connected to a hinge block, the lower rear surface of the main frame is fixedly connected to a base plate, the upper surface of the base plate is fixedly connected to a mounting support plate, the upper surface of the mounting support plate is fixedly installed with an electric push rod, the upper end of the electric push rod is fixedly connected to a hinge rod, and the hinge rod and the inner surface of the hinge block are hinged to each other.

[0007] As an optimal technical solution of the present invention: the clamping structure includes a sliding groove opened inside the first fixed block, a sliding bar is movably connected inside the sliding groove, the sliding bar is fixedly connected to a clamping curved plate at one end near the middle of the skateboard, and the rear surface of the sliding bar is fixedly connected to the rack.

[0008] As an optimal technical solution of the present utility model: the cutting mechanism includes a limit plate fixedly connected to the front surface of the main frame, the surface of the limit plate is movably connected to a linear motor, one side of the linear motor is fixedly connected to a saw blade housing, the side of the linear motor away from the saw blade housing is fixedly connected to a second motor, and the saw blade is rotatably connected inside the saw blade housing.

[0009] As a preferred technical solution of the present invention, there are three limit plates, and the angles between the three limit plates are all 120 degrees.

[0010] As a preferred technical solution of the present invention: a cutting channel is opened in the middle of the slide plate, and the curvature inside the cutting channel is equal to the curvature of the inner side of the clamping curved plate.

[0011] As a preferred technical solution of the present invention: the second fixing block is located directly below the cutting channel, and a baffle is fixedly connected to the upper surface of the supporting plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model starts the first motors on the left and right parts simultaneously through an external controller, and the first bevel gear and the second bevel gear fixedly connected to the output shaft of the first motor rotate, thereby indirectly driving the gear to rotate, and then driving the left and right racks to move relative to each other, thereby realizing the clamping structure of the steel pipe. Compared with traditional devices, there is no better clamping structure when cutting the steel pipe, and most of them rely on manpower. Due to the width value and clamping degree of the clamping curved plate, the position of the steel pipe can be firmly fixed in this device, so that the cutting mechanism can achieve the effect of smooth incision when cutting the steel pipe, so that the quality of the cut product is higher.

[0014] 2. The utility model rotates the support plate along the rear end edge of the second fixed block as the axis through the work of the electric push rod, so that the support plate can be brought into contact with the lower surface of the steel pipe until the steel pipe is smoothly transferred to the rear end device. Compared with traditional devices, the cut steel pipe often falls to the ground due to gravity, which will cause damage to the ground and collision of the steel pipe to a certain extent. The utility model avoids damage to the device itself and the steel pipe when the steel pipe falls, and has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cutting channel structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the saw blade structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the mounting plate structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first helical gear of the utility model;

[0020] Figure 6 This is a schematic diagram of the hinge block structure of the utility model;

[0021] Figure 7 This is an exploded view of the slide trough, slide bar and clamping curved plate of the utility model.

[0022] In the figure: 1. Main frame; 2. Slide plate; 3. Mounting plate; 4. First motor; 5. First bevel gear; 6. L-shaped fixing block; 7. Rotating shaft; 8. Second bevel gear; 9. Gear; 10. First fixing block; 11. Rack; 12. Second fixing block; 13. Support plate; 14. Articulated block; 15. Bottom plate; 16. Mounting support plate; 17. Electric push rod; 18. Articulated rod; 19. Slide groove; 20. Slide bar; 21. Clamping curved plate; 22. Limiting plate; 23. Linear motor; 24. Saw blade housing; 25. Second motor; 26. Saw blade; 27. Cutting channel; 28. Baffle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 7As shown, the utility model provides a high-speed cutting mechanism for large-diameter thick-walled steel pipes with smooth incisions, including a main frame 1, a skateboard 2 is movably connected inside the main frame 1, a cutting mechanism is provided on the front surface of the skateboard 2, a mounting plate 3 is fixedly connected to the rear surface of the skateboard 2, a first motor 4 is fixedly installed on the rear surface of the mounting plate 3, the output shaft of the first motor 4 is fixedly connected to the first bevel gear 5, an L-shaped fixing block 6 is fixedly connected to the rear surface of the skateboard 2, a rotating shaft 7 is internally rotatably connected to the L-shaped fixing block 6, a second bevel gear 8 is fixedly connected to the lower curved surface of the rotating shaft 7, the second bevel gear 8 is meshed with the first bevel gear 5, a gear 9 is fixedly connected to the upper curved surface of the rotating shaft 7, a first fixing block 10 is fixedly installed on the middle surface of the skateboard 2, a clamping structure is movably connected to the internal surface of the first fixing block 10, a rack 11 is fixedly connected to the rear surface of the clamping structure, and the rack 11 is meshed with the gear 9.

[0025] When the staff needs to cut large-diameter thick-walled steel pipes at high speed, the steel pipes are inserted into the cutting channel 27 from the front of the cutting channel 27, and the first motor 4 is started. Due to the rotation of the output shaft of the first motor 4, the first bevel gear 5 is driven to rotate, and the first bevel gear 5 and the second bevel gear 8 are engaged with each other, thereby driving the rotation of the rotating shaft 7, and the upper curved surface of the rotating shaft 7 located in the internal rotation connection of the L-shaped fixed block 6 is fixedly connected to the gear 9, which further rotates the gear 9. At the same time, since the rear surface of the clamping structure is fixedly connected to the rack 11, and the rack 11 and the gear 9 are engaged with each other, the clamping structure is moved left and right. The controller controls the first motors 4 at the left and right ends to work simultaneously, and the clamping structure cooperates with the front-end equipment of the slide 2 to synchronously fix the position of the steel pipe to be cut, and then the cutting mechanism is started to cut the large-diameter thick-walled steel pipe.

[0026] Among them, the lower rear surface of the skateboard 2 is fixedly connected to the second fixed block 12, the rear of the second fixed block 12 is hinged to the support plate 13, the lower surface of the support plate 13 is fixedly connected to the hinge block 14, the lower rear surface of the main frame 1 is fixedly connected to the base plate 15, the upper surface of the base plate 15 is fixedly connected to the mounting support plate 16, the upper surface of the mounting support plate 16 is fixedly installed with an electric push rod 17, the upper end of the electric push rod 17 is fixedly connected to the hinge rod 18, and the hinge rod 18 and the inner surface of the hinge block 14 are hinged to each other.

[0027] After the steel pipe is cut, the first motor 4 is started, and the cut steel pipe will fall to the upper surface of the support plate 13. By starting the electric push rod 17, the electric push rod 17 drives the hinge rod 18 to move up and down, thereby changing the support plate 13 along the axis hinged to the second fixed block 12 to tilt to different heights, and the second fixed block 12 is located exactly below the cutting channel 27, so that the steel pipe can smoothly connect and slide along the support plate 13 to the rear end device.

[0028] Among them, the clamping structure includes a slide groove 19 opened inside the first fixed block 10, and a slide bar 20 is movably connected inside the slide groove 19. The slide bar 20 is fixedly connected to a clamping curved plate 21 at one end near the middle of the skateboard 2, and the rear surface of the slide bar 20 is fixedly connected to the rack 11.

[0029] The sliding bar 20 is movably connected to the sliding groove 19 inside the first fixed block 10, so that the device has a more stable clamping effect, and the clamping curved plate 21 has a more suitable clamping effect on the steel pipe due to its arc-shaped inner surface.

[0030] Among them, the cutting mechanism includes a limit plate 22 fixedly connected to the front surface of the main frame 1, and the surface of the limit plate 22 is movably connected to a linear motor 23, one side of the linear motor 23 is fixedly connected to a saw blade housing 24, and the side of the linear motor 23 away from the saw blade housing 24 is fixedly connected to a second motor 25, and a saw blade 26 is rotatably connected inside the saw blade housing 24.

[0031] The linear motor 23 is used to move the saw blade 26 toward the center simultaneously in three different directions. The large disc rotates 360 degrees continuously, driving the saw blades 26 of the three gear box heads to saw at the same time. The steel pipe does not rotate, the sawing size is accurate, the cut surface is bright and smooth, and the material splicing system automatically splices the material after the steel pipe is sawed. At the same time, the feeding system starts feeding and sawing.

[0032] There are three limiting plates 22 , and the angles between the three limiting plates 22 are all 120 degrees.

[0033] The surface of the steel pipe is cut by three sets of saw blades 26, so that the cut on the surface of the steel pipe is smoother and the cutting speed is faster.

[0034] A cutting channel 27 is provided in the middle of the slide plate 2 , and the curvature of the interior of the cutting channel 27 is equal to the curvature of the inner side of the clamping curved plate 21 .

[0035] By feeding the steel pipe into the cutting channel 27 from the front surface and out from the rear surface of the cutting channel 27, and the clamping curved plate 21 is located in the middle of the cutting channel 27, and the inner curvature of the clamping curved plate 21 is equal to the inner part of the cutting channel 27, the contact area between the clamping curved plate 21 and the steel pipe surface is larger, thereby achieving better clamping of the steel pipe.

[0036] The second fixing block 12 is located directly below the cutting channel 27 , and a baffle 28 is fixedly connected to the upper surface of the supporting plate 13 .

[0037] The second fixing block 12 is designed to be directly below the cutting channel 27, which facilitates the smooth drop of the steel pipe to the surface of the support plate 13. The baffle 28 prevents the steel pipe from sliding from the side and colliding with the first motor 4, thereby causing damage to the first motor 4.

[0038] The working principle and use process of this utility model:

[0039] When the staff needs to cut large-diameter thick-walled steel pipes at high speed, the steel pipes are inserted into the cutting channel 27 from the front of the cutting channel 27, and the first motor 4 is started. Due to the rotation of the output shaft of the first motor 4, the first bevel gear 5 is driven to rotate, and the first bevel gear 5 and the second bevel gear 8 are engaged with each other, thereby driving the rotation of the rotating shaft 7, and the upper curved surface of the rotating shaft 7 located in the internal rotation connection of the L-shaped fixed block 6 is fixedly connected to the gear 9, which further rotates the gear 9. At the same time, since the rear surface of the clamping structure is fixedly connected to the rack 11, and the rack 11 and the gear 9 are engaged with each other, the clamping structure is moved left and right. The controller controls the first motors 4 at the left and right ends to work simultaneously, and the clamping structure cooperates with the front-end equipment of the slide 2 to synchronously fix the position of the steel pipe to be cut, and then the cutting mechanism is started to cut the large-diameter thick-walled steel pipe.

[0040] After the steel pipe is cut, the first motor 4 is started, and the cut steel pipe will fall to the upper surface of the support plate 13. By starting the electric push rod 17, the electric push rod 17 drives the hinge rod 18 to move up and down, thereby changing the support plate 13 along the axis hinged to the second fixed block 12 to tilt to different heights, and the second fixed block 12 is located exactly below the cutting channel 27, so that the steel pipe can smoothly connect and slide along the support plate 13 to the rear end device.

[0041] The sliding bar 20 is movably connected to the sliding groove 19 inside the first fixed block 10, so that the device has a more stable clamping effect, and the clamping curved plate 21 has a more suitable clamping effect on the steel pipe due to its arc-shaped inner surface.

[0042] The linear motor 23 is used to move the saw blade 26 toward the center simultaneously in three different directions. The large disc rotates 360 degrees continuously, driving the saw blades 26 of the three gear box heads to saw at the same time. The steel pipe does not rotate, the sawing size is accurate, the cut surface is bright and smooth, and the material splicing system automatically splices the material after the steel pipe is sawed. At the same time, the feeding system starts feeding and sawing.

[0043] The surface of the steel pipe is cut by three sets of saw blades 26, so that the cut on the surface of the steel pipe is smoother and the cutting speed is faster.

[0044] By feeding the steel pipe into the cutting channel 27 from the front surface and out from the rear surface of the cutting channel 27, and the clamping curved plate 21 is located in the middle of the cutting channel 27, and the inner curvature of the clamping curved plate 21 is equal to the inner part of the cutting channel 27, the contact area between the clamping curved plate 21 and the steel pipe surface is larger, thereby achieving better clamping of the steel pipe.

[0045] The second fixing block 12 is designed to be directly below the cutting channel 27, which facilitates the smooth drop of the steel pipe to the surface of the support plate 13. The baffle 28 prevents the steel pipe from sliding from the side and colliding with the first motor 4, thereby causing damage to the first motor 4.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts, comprising a main frame (1), characterized in that: The main frame (1) is internally connected to a slide plate (2), a cutting mechanism is provided on the front surface of the slide plate (2), a mounting plate (3) is fixedly connected to the rear surface of the slide plate (2), a first motor (4) is fixedly mounted on the rear surface of the mounting plate (3), an output shaft of the first motor (4) is fixedly connected to a first bevel gear (5), an L-shaped fixing block (6) is fixedly connected to the rear surface of the slide plate (2), a rotating shaft (7) is internally connected to the L-shaped fixing block (6), a lower curved surface of the rotating shaft (7) is fixedly connected to a second bevel gear (8), the second bevel gear (8) and the first bevel gear (5) are meshed with each other, an upper curved surface of the rotating shaft (7) is fixedly connected to a gear (9), a first fixing block (10) is fixedly mounted on the middle surface of the slide plate (2), a clamping structure is internally connected to the first fixing block (10), a rack (11) is fixedly connected to the rear surface of the clamping structure, and the rack (11) and the gear (9) are meshed with each other.

2. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 1, characterized in that: The lower rear surface of the slide plate (2) is fixedly connected to a second fixed block (12), the rear of the second fixed block (12) is hinged to a support plate (13), the lower surface of the support plate (13) is fixedly connected to a hinge block (14), the lower rear surface of the main frame (1) is fixedly connected to a base plate (15), the upper surface of the base plate (15) is fixedly connected to a mounting support plate (16), the upper surface of the mounting support plate (16) is fixedly installed with an electric push rod (17), the upper end of the electric push rod (17) is fixedly connected to a hinge rod (18), and the hinge rod (18) and the inner surface of the hinge block (14) are hinged to each other.

3. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 1, characterized in that: The clamping structure includes a slide groove (19) opened inside the first fixed block (10), a slide bar (20) is movably connected inside the slide groove (19), and a clamping curved plate (21) is fixedly connected to one end of the slide bar (20) near the middle of the slide plate (2), and the rear surface of the slide bar (20) is fixedly connected to the rack (11).

4. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 1, characterized in that: The cutting mechanism comprises a limit plate (22) fixedly connected to the front surface of the main frame (1); a linear motor (23) is movably connected to the surface of the limit plate (22); a saw blade housing (24) is fixedly connected to one side of the linear motor (23); a second motor (25) is fixedly connected to the side of the linear motor (23) away from the saw blade housing (24); and a saw blade (26) is rotatably connected inside the saw blade housing (24).

5. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 4, characterized in that: There are three limit plates (22), and the angles between the three limit plates (22) are all one hundred and twenty degrees.

6. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 1, characterized in that: A cutting channel (27) is provided in the middle of the slide plate (2), and the curvature inside the cutting channel (27) is equal to the curvature inside the clamping curved plate (21).

7. The high-speed cutting mechanism for large-diameter, thick-walled steel pipes with smooth cuts according to claim 2, characterized in that: The second fixed block (12) is located directly below the cutting channel (27), and a baffle (28) is fixedly connected to the upper surface of the supporting plate (13).