Welding device for fan tower drum production

Abstract

The utility model relates to the related technical field of wind power tower drum flange welding equipment, in particular to a welding device for fan tower drum production. A limiting box with a constant-speed autorotation function is arranged on one side of the top of the machine box, six positioning clamping jaws are evenly arranged on the top of the limiting box, toothed plates are fixedly connected to the bottoms of the positioning clamping jaws, the toothed plates are slidably connected with the limiting box, and a vertical rail is arranged on one face of the limiting box. Under the matching action of the machine box, the limiting box, the positioning clamping jaw, the toothed plate, the vertical rail, the damping pad and the welding mechanism, adjustment can be conducted according to the size of a flange plate needing to be welded and the size of a tower drum, and the welding height can also be adjusted according to the thickness of the flange plate; a user can conveniently weld different flange plates and tower barrels, the included angle between the welding gun and the welding positions of the flange plates and the tower barrels can be kept at 45 degrees all the time, and the welding effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine tower flange welding equipment, specifically a welding device for wind turbine tower production. Background Technology

[0002] In wind power generation, the essential structures are the tower and the flange. The tower and the inner ring of the flange are usually welded together using a welding torch.

[0003] Utility model patent CN220462685U discloses a flange welding device for wind turbine tower production, belonging to the technical field of wind turbine tower flange welding equipment. It addresses the problems found in existing technologies where, in practical applications, the structure for limiting and supporting the tower and flange cannot be easily replaced, leading to wear and tear over time and reducing the device's lifespan. Furthermore, the angle adjustment of the welding torch requires bolts, which is inconvenient and hinders widespread use. The device includes a base, with a column fixedly connected to the top surface of the base. A support plate is fixedly connected to the top surface of the column. An inclined electric push rod is movably connected to the top surface of the support plate via a rotating shaft. The telescopic end of the inclined electric push rod is movably connected to left and right electric push rods via a rotating shaft. A welding gun is fixedly connected to the telescopic end of the left and right electric push rods. This utility model, by setting up a bonding plate, a retaining strip, a soft bonding layer, a connecting block, a connecting bolt, a limiting plate, a connecting groove, a moving plate, and a pressure detection sensor, can better limit the position of the tower and flange assembly. Moreover, the bonding plate in contact with the tower and flange can be easily replaced, extending the service life of the device and making it more user-friendly.

[0004] However, the above patent still has shortcomings: although the patent can adjust the angle of the welding torch, it does not have the function of adjusting the height of the welding machine. Due to the different sizes and thicknesses of the flanges, the height of the joint between the flange and the tower is also different, which makes it inconvenient for the existing welding equipment to weld flanges of different thicknesses to the tower. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a welding device for the production of wind turbine towers, which solves the problem mentioned in the background art that although the existing welding devices for the production of wind turbine towers can adjust the angle of the welding torch, they do not have the function of adjusting the height of the welding machine. Due to the different sizes and thicknesses of the flanges, the height of the joint between the flange and the tower is also different, which makes it inconvenient for the existing welding devices to weld flanges of different thicknesses to the tower.

[0006] The technical solution of this utility model is:

[0007] A welding device for wind turbine tower production includes: a chassis; a limiting box with uniform rotation function is provided on one side of the top of the chassis; six positioning claws are evenly arranged on the top of the limiting box; toothed plates are fixedly connected to the bottom of each positioning claw; the toothed plates are slidably connected to the limiting box; a vertical rail is provided on one side of the limiting box; damping pads are provided on the opposite sides of the six positioning claws; the damping pads are fixedly connected to the positioning claws respectively; a welding mechanism that can be adjusted according to the height of the flange and tower connection is provided inside the vertical rail; and a power mechanism that prevents large deformation at the weld joint is provided inside the limiting box.

[0008] Preferably, the welding mechanism includes: a lifting block slidably connected inside the vertical rail; a lifting platform fixedly connected to one side of the lifting block; a hydraulic cylinder provided on the top of the lifting platform; two fixed frames fixedly connected to the outer surface of the hydraulic cylinder, each fixedly connected to the lifting platform; a welding gun fixedly connected to the telescopic end of the hydraulic cylinder; two structural plates provided on the side of the vertical rail away from the lifting platform, each fixedly connected to the vertical rail and the machine housing; a screw threadedly connected inside the lifting block; the bottom end of the screw rotatably connected to the machine housing; the top end of the screw penetrating the vertical rail and extending to a first motor; the first motor fixedly connected to the vertical rail; and the screw fixedly connected to the output end of the first motor.

[0009] Preferably, the bottom of the lifting platform is provided with two support frames, both of which are fixedly connected to the lifting block and the lifting platform.

[0010] Preferably, the power mechanism includes: a flat screw disc rotatably connected inside the limiting box, and toothed plates meshing with the flat screw disc; a first bevel gear fixedly connected to the bottom of the flat screw disc, a second bevel gear meshing with one side of the bottom of the first bevel gear, a rotating shaft fixedly connected to the center of the second bevel gear, the end of the rotating shaft away from the second bevel gear passing through the limiting box and extending to the second motor, the second motor being fixedly connected to the limiting box, and the rotating shaft being fixedly connected to the output end of the second motor.

[0011] Preferably, a rotating sleeve is fixedly connected to the bottom of the limiting box. The bottom end of the rotating sleeve passes through the chassis and extends to the third bevel gear. The third bevel gear is fixedly connected to the rotating sleeve, and the rotating sleeve is rotatably connected to the chassis. A fourth bevel gear meshes with one side of the bottom of the third bevel gear. The fourth bevel gear is fixed to the outer surface of the output end of the third motor, and the third motor is fixedly connected to the chassis.

[0012] Preferably, a control box with a touch screen is provided on one side of the limiting box, and the control box is fixedly connected to the chassis.

[0013] Preferably, each of the four bottom corners of the chassis is fixedly connected with a universal wheel with a braking function.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, this utility model, through the coordinated action of the chassis, limit box, positioning claw, toothed plate, vertical rail, damping pad, and welding mechanism, can not only adjust the size of the flange and tower to be welded, but also adjust the welding height according to the thickness of the flange. This facilitates welding of different flanges and towers, and ensures that the welding torch always maintains a 45-degree angle with the welding joint of the flange and tower, improving the welding effect. It solves the problem that existing welding devices used for wind turbine tower production, while able to adjust the angle of the welding torch, do not have the function of adjusting the height of the welding machine. Due to the different sizes and thicknesses of flanges, the joint height between the flange and the tower also varies, making it inconvenient for existing welding devices to weld flanges and towers of different thicknesses.

[0016] Secondly, through the combined action of the chassis, limit box, positioning claw, toothed plate, vertical rail, damping pad and power mechanism, this utility model can not only provide multi-point support for the welded joint of the flange and tower, reducing the probability of deformation at the welded joint of the flange and tower due to high temperature, but also control the flange and tower to rotate slowly and uniformly, thereby improving the welding effect of the flange and tower. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a welding device for wind turbine tower production according to the present invention;

[0018] Figure 2 This is a side sectional view of a welding device for wind turbine tower production according to the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the welding mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the toothed plate and the flat screw disc of this utility model.

[0022] In the picture:

[0023] 1. Chassis; 2. Limit box; 3. Positioning claw; 4. Gear plate; 5. Vertical rail; 6. Damping pad; 7. Welding mechanism; 8. Power mechanism; 9. Lifting block; 10. Lifting platform; 11. Hydraulic cylinder; 12. Fixing frame; 13. Welding gun; 14. Structural plate; 15. Screw; 16. First motor; 17. Support frame; 18. Flat threaded disc; 19. First bevel gear; 20. Second bevel gear; 21. Second motor; 22. Rotating sleeve; 23. Third bevel gear; 24. Fourth bevel gear; 25. Third motor; 26. Control box; 27. Casters; 28. Shaft. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 The present invention will describe the above technical solution in detail through the following embodiments:

[0026] A welding device for wind turbine tower production includes: a housing 1; a limiting box 2 with uniform rotation function is provided on one side of the top of the housing 1; six positioning claws 3 are evenly arranged on the top of the limiting box 2; toothed plates 4 are fixedly connected to the bottom of each positioning claw 3; the toothed plates 4 are slidably connected to the limiting box 2; a vertical rail 5 is provided on one side of the limiting box 2; damping pads 6 are provided on the opposite sides of each of the six positioning claws 3; the damping pads 6 are fixedly connected to the positioning claws 3 respectively; a welding mechanism 7 is provided inside the vertical rail 5 to be adjustable according to the height of the connection between the flange and the tower; the limiting box... The internal structure of the 2 is equipped with a power mechanism 8 to prevent large deformation at the welding point. The user places the flange and tower into the outer side of the positioning claw 3 of the limiting box 2 in sequence. Then, the power mechanism 8 controls the toothed plate 4 to drive the positioning claw 3 to move synchronously towards the inner wall of the flange and tower, thereby centering and clamping the flange and tower. Then, the height of the welding mechanism 7 inside the vertical rail 5 is adjusted according to the height of the welding point of the flange and tower, so that the welding torch is kept horizontal with the welding point of the flange and tower, and the welding mechanism 7 can then be used to weld the flange and tower.

[0027] like Figure 4As shown, the welding mechanism 7 includes: a lifting block 9 slidably connected inside the vertical rail 5; a lifting platform 10 fixedly connected to one side of the lifting block 9; a hydraulic cylinder 11 installed on the top of the lifting platform 10; two fixed frames 12 fixedly connected to the outer surface of the hydraulic cylinder 11, both of which are fixedly connected to the lifting platform 10; a welding gun 13 fixedly connected to the telescopic end of the hydraulic cylinder 11; two structural plates 14 installed on the side of the vertical rail 5 away from the lifting platform 10, both of which are fixedly connected to the vertical rail 5 and the housing 1; a screw 15 threadedly connected inside the lifting block 9; the bottom end of the screw 15 rotatably connected to the housing 1; and the top end of the screw 15 penetrating the vertical rail 5 and extending to the first motor 16, which is fixedly connected to the vertical rail 5. The screw 15 is fixedly connected to the output end of the first motor 16. The user starts the first motor 16 according to the height of the flange and the welding point of the tower. The output end of the first motor 16 drives the screw 15 to rotate. While the screw 15 rotates, it drives the lifting block 9. The lifting block 9 moves up and down with the cooperation of the vertical rail 5. While the lifting block 9 moves up and down, it drives the lifting platform 10. The lifting platform 10 drives the hydraulic cylinder 11 through the fixed frame 12. The hydraulic cylinder 11 drives the welding gun 13, so that the welding gun 13 is flush with the welding point of the flange and the tower. Then, the hydraulic cylinder 11 is started. The extension end of the hydraulic cylinder 11 drives the welding gun 13, so that the welding gun 13 moves to the welding point of the flange and the tower, and then welds the flange and the tower.

[0028] like Figure 4 As shown, the bottom of the lifting platform 10 is provided with two support frames 17. Both support frames 17 are fixedly connected to the lifting block 9 and the lifting platform 10, which improves the structural strength of the connection between the lifting platform 10 and the lifting block 9 and prevents the connection from breaking.

[0029] like Figure 2 and Figure 3As shown, the power mechanism 8 includes: a flat screw disc 18 rotatably connected inside the limiting box 2, with toothed plates 4 meshing with the flat screw disc 18; a first bevel gear 19 fixedly connected to the bottom of the flat screw disc 18, a second bevel gear 20 meshing with one side of the bottom of the first bevel gear 19, a rotating shaft 28 fixedly connected to the center of the second bevel gear 20, the end of the rotating shaft 28 away from the second bevel gear 20 passing through the limiting box 2 and extending to the second motor 21, the second motor 21 fixedly connected to the limiting box 2, and the rotating shaft 28 fixedly connected to the output end of the second motor 21. The first motor 21 is then activated. The second motor 21 drives the rotating shaft 28 at its output end. The rotating shaft 28 drives the second bevel gear 20 at the same time. The second bevel gear 20 drives the first bevel gear 19. The first bevel gear 19 drives the flat threaded disc 18 to rotate. At the same time as the flat threaded disc 18 rotates, it pushes the toothed plate 4 through the flat thread on its top. The toothed plate 4 moves towards the inner wall of the flange and the tower through the cooperation of the limiting box 2. At the same time as the toothed plate 4 moves, it drives the positioning claw 3. The positioning claw 3 drives the damping pad 6, so that the damping pad 6 fits tightly against the inner wall of the flange and the tower.

[0030] like Figure 2 As shown, a rotating sleeve 22 is fixedly connected to the bottom of the limiting box 2. The bottom end of the rotating sleeve 22 passes through the housing 1 and extends to the third bevel gear 23. The third bevel gear 23 is fixedly connected to the rotating sleeve 22, and the rotating sleeve 22 is rotatably connected to the housing 1. A fourth bevel gear 24 meshes with one side of the bottom of the third bevel gear 23. The fourth bevel gear 24 is fixed to the outer surface of the output end of the third motor 25. The third motor 25 is fixedly connected to the housing 1. When the third motor 25 is started, the output end of the third motor 25 drives the fourth bevel gear 24. The fourth bevel gear 24 drives the third bevel gear 23 to rotate slowly and uniformly. While the third bevel gear 23 rotates, it drives the rotating sleeve 22. The rotating sleeve 22 drives the limiting box 2, and the limiting box 2 drives the flange and the tower to rotate slowly and uniformly.

[0031] like Figure 1 As shown, a control box 26 with a touch screen is provided on one side of the limit box 2. The control box 26 is fixedly connected to the chassis 1, which makes it convenient for users to operate the device.

[0032] like Figure 1 As shown, each of the four corners of the bottom of the chassis 1 is fixedly connected with a universal wheel 27 with a braking function, which makes it convenient for users to move and fix the device.

[0033] Working principle: The user places the flange and tower cylinder sequentially onto the outside of the positioning claws 3 of the limiting box 2, and then starts the second motor 21. The output end of the second motor 21 drives the rotating shaft 28. The rotating shaft 28 rotates and drives the second bevel gear 20. The second bevel gear 20 drives the first bevel gear 19. The first bevel gear 19 drives the flat thread disc 18 to rotate. As the flat thread disc 18 rotates, it pushes the toothed plate 4 through the flat thread on its top. The toothed plate 4 moves towards the inner wall of the flange and tower cylinder through the cooperation of the limiting box 2. As the toothed plate 4 moves, it drives the positioning claws 3. The positioning claws 3 drive the damping pad 6, so that the damping pad 6 fits tightly against the inner wall of the flange and tower cylinder. This system not only provides multi-point support for the weld joints of the flange and tower, reducing the probability of deformation due to high temperatures, but also controls the flange and tower to rotate slowly and uniformly, thus improving the welding effect. Then, based on the height of the weld joints, the first motor 16 is activated. The output of the first motor 16 drives the screw 15 to rotate. Simultaneously, the screw 15 rotates, driving the lifting block 9. The lifting block 9, in conjunction with the vertical rail 5, moves up and down, driving the lifting platform 10. The lifting platform 10, through the fixed frame 12, drives the hydraulic cylinder 11, which in turn drives the welding gun 13. The welding torch 13 is aligned with the flange and tower welding area. Then, the hydraulic cylinder 11 is activated, and its extension / retraction end moves the welding torch 13 to the flange and tower welding area. This allows for adjustment not only according to the size of the flange and tower to be welded, but also according to the flange thickness, facilitating welding of different flanges and towers. Furthermore, it ensures the welding torch maintains a 45-degree angle with the flange and tower welding area, improving welding quality and addressing the limitations of existing welding devices for wind turbine tower production, which, while adjustable in angle, do not... It has the function of adjusting the height of the welding machine. Due to the different sizes and thicknesses of the flanges, the height of the joint between the flange and the tower is also different. This causes the existing welding equipment to be inconvenient when welding flanges and towers of different thicknesses. Finally, the third motor 25 is started. The output end of the third motor 25 drives the fourth bevel gear 24. The fourth bevel gear 24 drives the third bevel gear 23 to rotate slowly and uniformly. While the third bevel gear 23 rotates, it drives the rotating sleeve 22. The rotating sleeve 22 drives the limit box 2. The limit box 2 drives the flange and tower to rotate slowly and uniformly, and then cooperates with the welding gun 13 to weld the flange and tower.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A welding apparatus for the production of wind turbine towers, comprising: Chassis (1); The feature is that: a limiting box (2) with uniform speed rotation function is provided on one side of the top of the chassis (1), and six positioning claws (3) are evenly provided on the top of the limiting box (2). The bottom of each positioning claw (3) is fixedly connected to a toothed plate (4), and the toothed plate (4) is slidably connected to the limiting box (2). A vertical rail (5) is provided on one side of the limiting box (2), and a damping pad (6) is provided on the opposite side of each of the six positioning claws (3). The damping pad (6) is fixedly connected to the positioning claws (3) respectively. The vertical rail (5) is equipped with a welding mechanism (7) that can be adjusted according to the height of the connection between the flange and the tower. The limiting box (2) is equipped with a power mechanism (8) to prevent large deformation at the weld joint.

2. The welding apparatus for wind turbine tower production as described in claim 1, characterized in that: The welding mechanism (7) includes: The vertical rail (5) is internally slidably connected to a lifting block (9), and a lifting platform (10) is fixedly connected to one side of the lifting block (9). A hydraulic cylinder (11) is provided on the top of the lifting platform (10), and two fixed frames (12) are fixedly connected to the outer surface of the hydraulic cylinder (11). The fixed frames (12) are all fixedly connected to the lifting platform (10). A welding gun (13) is fixedly connected to the telescopic end of the hydraulic cylinder (11). Two structural plates (14) are provided on the side of the vertical rail (5) away from the lifting platform (10). The structural plates (14) are all fixedly connected to the vertical rail (5) and the machine box (1). The lifting block (9) is internally threaded with a screw (15). The bottom end of the screw (15) is rotatably connected to the housing (1). The top end of the screw (15) passes through the vertical rail (5) and extends to the first motor (16). The first motor (16) is fixedly connected to the vertical rail (5). The screw (15) is fixedly connected to the output end of the first motor (16).

3. The welding apparatus for wind turbine tower production as described in claim 2, characterized in that: The bottom of the lifting platform (10) is provided with two support frames (17), and both support frames (17) are fixedly connected to the lifting block (9) and the lifting platform (10).

4. The welding apparatus for wind turbine tower production as described in claim 1, characterized in that: The power mechanism (8) includes: The limiting box (2) is rotatably connected to a flat screw disc (18), and the toothed plates (4) are all engaged with the flat screw disc (18); The bottom of the flat screw disc (18) is fixedly connected to a first bevel gear (19), and a second bevel gear (20) meshes with one side of the bottom of the first bevel gear (19). A rotating shaft (28) is fixedly connected to the center of the second bevel gear (20). The end of the rotating shaft (28) away from the second bevel gear (20) passes through the limiting box (2) and extends to the second motor (21). The second motor (21) is fixedly connected to the limiting box (2), and the rotating shaft (28) is fixedly connected to the output end of the second motor (21).

5. The welding apparatus for wind turbine tower production as described in claim 1, characterized in that: The bottom of the limiting box (2) is fixedly connected to a rotating sleeve (22). The bottom end of the rotating sleeve (22) passes through the housing (1) and extends to the third bevel gear (23). The third bevel gear (23) is fixedly connected to the rotating sleeve (22). The rotating sleeve (22) is rotatably connected to the housing (1). A fourth bevel gear (24) meshes with the bottom side of the third bevel gear (23). The fourth bevel gear (24) is fixed to the outer surface of the output end of the third motor (25). The third motor (25) is fixedly connected to the housing (1).

6. The welding apparatus for wind turbine tower production as described in claim 1, characterized in that: A control box (26) with a touch screen is provided on one side of the limiting box (2), and the control box (26) is fixedly connected to the chassis (1).

7. The welding apparatus for wind turbine tower production as described in claim 1, characterized in that: The bottom four corners of the chassis (1) are all fixedly connected with casters (27) with braking function.

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