A flame cutting device for opening holes in an ultra-thick steel plate
By combining components such as hydraulic rods, racks, gears, threaded rods, and motors, the shortcomings of ultra-thick steel plate flame cutting devices in terms of steel plate position and height adjustment are solved, achieving efficient and convenient cutting operations and adapting to the cutting needs of different steel plate sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG ZHONGCHANG GROUP LAIZHOU ENGINEERING CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-07
AI Technical Summary
Existing flame cutting devices for drilling holes in ultra-thick steel plates are not convenient for automatically moving the steel plate position, resulting in low cutting efficiency. They are also difficult to adapt to the cutting needs when the steel plate length is inconsistent, and it is not convenient to adjust the flame cutting height and position, which can easily lead to incomplete cutting.
The device employs components such as hydraulic rods, racks, gears, threaded rods, motors, and pulleys to achieve automatic positioning, height adjustment, and flexible adjustment of the flame cutting position of the steel plate. The hydraulic rods drive the rack to move, the gears rotate the clamping plate, the threaded rods adjust the clamping, and the motor controls the lifting plate and pulleys to adjust the position of the gas tank, enabling convenient operation of the cutting device.
It enables automatic positioning and cutting of steel plates of different lengths and thicknesses, improving cutting efficiency, ensuring cutting accuracy and stability, adapting to the cutting needs of steel plates of different widths, and enhancing the convenience and efficiency of cutting.
Smart Images

Figure CN224463873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling technology for ultra-thick steel plates, specifically a flame cutting device for drilling ultra-thick steel plates. Background Technology
[0002] Due to their thickness, ultra-thick steel plates are difficult to penetrate directly using traditional drilling tools. Therefore, they need to be cut to create holes. The ultra-thick steel plates are cut to a thickness suitable for drilling. High-temperature flames using oxygen and fuel gas are used to cut the steel plates. This method is low-cost, fast, and has high precision and good processing quality. There are various types of flame cutting devices for drilling ultra-thick steel plates on the market.
[0003] However, conventional flame cutting devices for drilling holes in ultra-thick steel plates are not convenient for automatically moving the steel plate. This makes cutting inconvenient when the steel plate length is inconsistent, and it is also difficult to adjust the cutting height of the flame. Consequently, when cutting ultra-thick steel plates, the cutting efficiency is low and the cutting process is slow. Furthermore, it is not convenient to adjust the movement of the flame cutting position according to the width of the steel plate, which may lead to incomplete cutting when the required cutting position is different. Therefore, we propose a flame cutting device for drilling holes in ultra-thick steel plates to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this invention is to provide a flame cutting device for drilling holes in ultra-thick steel plates, in order to solve the problems mentioned in the background art. Currently, conventional flame cutting devices for drilling holes in ultra-thick steel plates are not convenient for automatically moving the position of the steel plate, making cutting inconvenient when the length of the steel plate is inconsistent. They also make it difficult to adjust the cutting height of the flame, resulting in low cutting efficiency and slow cutting during ultra-thick steel plate cutting. Furthermore, they are not convenient for adjusting the movement of the flame cutting position according to the width of the steel plate, which may lead to incomplete cutting when the required cutting position is different.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flame cutting device for opening holes in ultra-thick steel plates, comprising:
[0006] The base has a hydraulic rod fixedly connected to its upper end.
[0007] Also includes:
[0008] A rack plate, which is slidably connected to the outer side of the upper end of the base, and a gear is meshed with the outer side of the rack plate, and a first threaded rod is rotatably connected to the inside of the rack plate;
[0009] A fixed frame is fixedly connected to the upper end of the base, and a lifting structure for adjusting the height is provided on the outer side of the fixed frame. The lifting structure includes a first motor, a second threaded rod and a lifting plate. The upper end of the fixed frame is fixedly connected to the first motor, and the second threaded rod is rotatably connected inside the fixed frame. The outer side of the second threaded rod is threadedly connected to the lifting plate.
[0010] The inner end of the fixing frame is provided with a first pulley for adjusting the cutting position.
[0011] Preferably, the base is internally connected to a gear, and the gears are symmetrically arranged on the left and right sides of the base.
[0012] Preferably, the outer side of the first threaded rod is threadedly connected to a clamping plate, and the clamping plate is slidably connected to the rack plate.
[0013] Preferably, a hydraulic rod is fixedly connected to the front end of the rack plate.
[0014] Preferably, a fixing frame is fixedly connected to the upper side of the base, and the fixing frame is symmetrically arranged on the left and right sides of the upper end of the base.
[0015] Preferably, the fixed frame is internally fixedly connected to a fixed column, and a lifting plate is slidably connected to the outside of the fixed column. The right end of the lifting plate is internally rotatably connected to a first pulley, and the upper end of the first pulley is fixedly connected to a second motor. The outside of the second motor is fixedly connected to the lifting plate.
[0016] Preferably, the outer side of the first pulley is tightly fitted with the belt body, and the inner side of the left end of the belt body is tightly fitted with the second pulley. The inner front end of the belt body is fixedly connected to the gas box, and the gas box is slidably connected to the slide rail. The slide rail is located inside the lifting plate, and a spray gun is installed at the front end of the gas box.
[0017] Compared with the prior art, the beneficial effects of this utility model are: the flame cutting device for opening holes in ultra-thick steel plates can easily control the position of the steel plate, cut steel plates of different lengths, adjust the height according to the cutting progress of the steel plate to speed up the cutting process, and adjust the flame cutting position according to the width of the steel plate, making it more convenient to use;
[0018] 1. Equipped with a hydraulic rod, rack plate, and gears, the rack plate is pulled backward or forward by activating the hydraulic rod. After the rack plate moves, the gears meshing on the left and right sides of the rack plate rotate in opposite directions. At the same time, the lower outer side of the rack plate slides on the upper side of the base, driving the steel plate held by the inner side of the clamping plate to move forward or backward. It can automatically adjust the position of the steel plate and move the position according to the length of the steel plate, which is convenient for cutting at different positions.
[0019] 2. It is equipped with a rack plate, a first threaded rod and a clamping plate. By rotating the first threaded rod inside the rack plate, the two clamping plates connected to the first threaded rod on the outside of the first threaded rod move inward or outward. At the same time, the inner side of the clamping plate slides inward or outward on the inner side of the rack plate to clamp the steel plate. It can position steel plates of different thicknesses and facilitate the cutting of steel plates during the cutting process.
[0020] 3. It is equipped with a first motor, a second threaded rod and a lifting plate. By starting the first motor, the second threaded rod, which is fixedly connected to the lower end of the first motor, rotates and drives the lifting plate, which is threaded to the outer side of the second threaded rod, to move up or down. This also drives the spray gun set at the upper end of the lifting plate to move up or down, which can adjust the height of the flame cutting and prevent the steel plate from being too thick.
[0021] 4. Equipped with a fixed frame, a lifting plate, and a fixed column, the lifting plate moves from the inside of the left end to the outside of the second threaded rod, and from the inside of the right end to the outside of the fixed column and the inside of the fixed frame, thus limiting the lifting plate and ensuring stability during steel plate cutting.
[0022] 5. It is equipped with a first pulley, a belt body, and a second pulley. The rotation of the first pulley causes the belt body, which is tightly attached to the outer side of the first pulley, to rotate, and simultaneously drives the second pulley, which is tightly attached to the inner side of the left end of the belt body, to rotate. This causes the gas box, which is fixedly connected to the inner side of the front end of the belt body, to move to the left or right. At this time, the outer side of the lower end of the gas box slides inside the slide rail, which can automatically adjust the cutting position of the steel plate and is more convenient to use. Attached Figure Description
[0023] Figure 1 This is a front view structural diagram of the present invention;
[0024] Figure 2 This is a frontal cross-sectional view of the present invention.
[0025] Figure 3 This is a top view schematic diagram of the connection structure of the rack plate, gear and first threaded rod of this utility model;
[0026] Figure 4 This is a top-view perspective view of the connection between the gear, the first threaded rod, and the clamping plate of this utility model.
[0027] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;
[0028] Figure 6 This is a top-view three-dimensional structural diagram showing the connection between the lifting plate, the first pulley, and the belt body of this utility model.
[0029] In the diagram: 1. Base; 2. Hydraulic rod; 3. Rack plate; 4. Gear; 5. First threaded rod; 6. Clamping plate; 7. Fixing frame; 8. First motor; 9. Second threaded rod; 10. Lifting plate; 11. Fixing column; 12. Second motor; 13. First pulley; 14. Belt body; 15. Second pulley; 16. Gas box; 17. Spray gun; 18. Slide rail. Detailed Implementation
[0030] 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.
[0031] Please see Figures 1-6 This utility model provides a technical solution: a flame cutting device for opening holes in ultra-thick steel plates, including a base 1, a hydraulic rod 2, a rack plate 3, a gear 4, a first threaded rod 5, a clamping plate 6, a fixing frame 7, a first motor 8, a second threaded rod 9, a lifting plate 10, a fixing column 11, a second motor 12, a first pulley 13, a belt body 14, a second pulley 15, a gas box 16, a spray gun 17, and a slide rail 18;
[0032] Existing flame cutting devices for drilling holes in ultra-thick steel plates are not convenient for automatically moving the position of the steel plate. As a result, cutting is inconvenient when the length of the steel plate is inconsistent. It is also inconvenient to adjust the cutting height of the flame, which can easily lead to low cutting efficiency and slow cutting when cutting ultra-thick steel plates. Furthermore, it is not convenient to adjust the movement direction of the flame cutting position according to the width of the steel plate, which may result in incomplete cutting when the required cutting position is different.
[0033] A base 1 is fixedly connected to a hydraulic rod 2 at its upper front end, and a rack plate 3 is fixedly connected to the rear end of the hydraulic rod 2. The lower outer side of the rack plate 3 is slidably connected to the upper outer side of the base 1. The outer end of the rack plate 3 is meshed with a gear 4, and the lower end of the gear 4 is rotatably connected to the inside of the base 1. The gear 4 is symmetrically arranged on the left and right sides inside the base 1. The inside of the rack plate 3 is rotatably connected to a first threaded rod 5, and the outer side of the first threaded rod 5 is threadedly connected to a clamping plate 6. The inner side of the clamping plate 6 is slidably connected to the inner end of the rack plate 3.
[0034] When the steel plate needs to be cut, rotate the first threaded rod 5 to move the two clamping plates 6 connected to the outer threads of the first threaded rod 5 outward. At the same time, the inner side of the clamping plates 6 slides outward on the inner side of the rack plate 3, pushing the steel plate from back to front to the inner side of the two clamping plates 6. The threads on the outer side of the first threaded rod 5 are arranged in opposite directions. Rotate the first threaded rod 5 to move the clamping plates 6 connected to the outer threads of the first threaded rod 5 inward, and at the same time move inward on the inner side of the rack plate 3, clamping the steel plate and positioning it. Then, activate the hydraulic rod 2 to drive the rack plate. 3. Movement: When the rack plate 3 moves backward, the lower end of the rack plate 3 moves backward at the upper end of the base 1. At the same time, the outer side of the rack plate 3 engages with the gear 4, causing the gears 4 on the left and right sides to rotate backward. When the rack plate 3 moves forward, the lower end of the rack plate 3 moves forward at the upper end of the base 1. At the same time, the outer side of the rack plate 3 engages with the gear 4, causing the gears 4 on the left and right sides to rotate in opposite directions. At this time, the steel plate held by the inner side of the clamping plate 6 moves forward or backward, which can easily control the position of the steel plate and cut steel plates of different lengths.
[0035] The base 1 has a fixed frame 7 fixedly connected to its upper end, and a first motor 8 fixedly connected to the upper end of the fixed frame 7. A second threaded rod 9 is fixedly connected to the lower end of the first motor 8. A lifting plate 10 is threadedly connected to the outer side of the second threaded rod 9. The right end of the lifting plate 10 is slidably connected to the outer side of the fixed column 11. The upper and lower sides of the fixed column 11 are fixedly connected to the upper and lower sides inside the fixed frame 7. The lifting plate 10 is slidably connected to the inner side of the fixed frame 7.
[0036] When height adjustment is required based on the thickness of the steel plate, the first motor 8 is started, causing the second threaded rod 9, which is fixedly connected to the lower end of the first motor 8, to rotate. This causes the lifting plate 10, which is threadedly connected to the outer side of the second threaded rod 9, to move upward or downward. At this time, the inner right end of the lifting plate 10 slides upward or downward on the outer side of the fixed column 11, while the left and right sides of the lifting plate 10 slide upward or downward on the inner side of the fixed frame 7. The spray gun 17 set at the upper end of the lifting plate 10 moves in tandem, enabling height adjustment according to the steel plate cutting progress and accelerating the steel plate cutting process.
[0037] The lifting plate 10 has a slide rail 18 at its upper end. The right end of the lifting plate 10 is rotatably connected to a first pulley 13, and the upper end of the first pulley 13 is fixedly connected to a second motor 12. The outer side of the first pulley 13 is tightly fitted to a belt body 14, and the inner side of the left end of the belt body 14 is tightly fitted to a second pulley 15. The lower end of the second pulley 15 is rotatably connected to the inner side of the left end of the lifting plate 10. The inner side of the front end of the belt body 14 is fixedly connected to a gas box 16, and a spray gun 17 is installed at the front end of the gas box 16. The lower end of the gas box 16 is slidably connected to the inside of the slide rail 18.
[0038] When the flame cutting position needs to be adjusted according to the width of the steel plate, the second motor 12 is started, causing the first pulley 13 fixedly connected to the lower end of the second motor 12 to rotate. The belt body 14, which is tightly attached to the outer side of the first pulley 13, rotates, causing the second pulley 15, which is tightly attached to the inner side of the left end of the belt body 14, to rotate simultaneously. When the belt body 14 rotates to the left, the gas tank 16, which is fixedly connected to the inner side of the front end of the belt body 14, moves to the left. At the same time, the outer side of the lower end of the gas tank 16 slides to the left inside the slide rail 18. When the belt body 14 rotates to the right, the gas tank 16, which is fixedly connected to the inner side of the front end of the belt body 14, moves to the right. At the same time, the outer side of the lower end of the gas tank 16 slides to the right inside the slide rail 18, causing the spray gun 17 mounted on the front side of the gas tank 16 to move simultaneously. This allows the flame cutting position to be adjusted according to the width of the steel plate, making it convenient to use.
[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0040] 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A flame cutting device for drilling holes in ultra-thick steel plates, comprising: Base (1), with a hydraulic rod (2) fixedly connected to the upper end of the base (1); Its characteristic is that it further includes: A rack plate (3) is slidably connected to the outer side of the upper end of the base (1), and a gear (4) is meshed on the outer side of the rack plate (3). A first threaded rod (5) is rotatably connected inside the rack plate (3). A fixed frame (7) is fixedly connected to the upper end of the base (1), and a lifting structure for adjusting the height is provided on the outer side of the fixed frame (7). The lifting structure includes a first motor (8), a second threaded rod (9) and a lifting plate (10). The upper end of the fixed frame (7) is fixedly connected to the first motor (8), and the interior of the fixed frame (7) is rotatably connected to the second threaded rod (9). The outer side of the second threaded rod (9) is threadedly connected to the lifting plate (10). The inner end of the fixing frame (7) is provided with a first pulley (13) for adjusting the cutting position.
2. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: The base (1) is rotatably connected to a gear (4), and the gear (4) is symmetrically arranged on the left and right sides inside the base (1).
3. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: The outer side of the first threaded rod (5) is threadedly connected to the clamping plate (6), and the clamping plate (6) is slidably connected to the rack plate (3).
4. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: A hydraulic rod (2) is fixedly connected to the front end of the rack plate (3).
5. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: A fixing frame (7) is fixedly connected to the upper side of the base (1), and the fixing frame (7) is symmetrically arranged on the left and right sides of the upper end of the base (1).
6. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: The fixed frame (7) is internally fixedly connected to a fixed column (11), and a lifting plate (10) is slidably connected to the outside of the fixed column (11). The right end of the lifting plate (10) is internally rotatably connected to a first pulley (13), and the upper end of the first pulley (13) is fixedly connected to a second motor (12). The outside of the second motor (12) is fixedly connected to the lifting plate (10).
7. The flame cutting device for opening holes in ultra-thick steel plates according to claim 1, characterized in that: The outer side of the first pulley (13) is tightly fitted with the belt body (14), and the inner side of the left end of the belt body (14) is tightly fitted with the second pulley (15). The inner side of the front end of the belt body (14) is fixedly connected to the gas box (16), and the gas box (16) is slidably connected to the slide rail (18). The slide rail (18) is set inside the lifting plate (10), and the front end of the gas box (16) is equipped with a spray gun (17).