Submerged-arc welding equipment tool for wind power tower

Abstract

The invention belongs to the technical field of wind power towers, and particularly relates to a wind power tower submerged-arc welding equipment tool which comprises a platform, a workbench, an abutting device and a rotating device. The workbench is located on the upper portion of the platform, the end of the workbench is hinged to a support at one end of the upper portion of the platform, the middle of the workbench is hinged to one end of a telescopic rod, and the other end of the telescopic rod is hinged to the middle of the platform. The telescopic rod is connected with the driving assembly; the abutting device and the rotating device are arranged on the upper portion of the workbench. The abutting device is far away from the support; the rotating device is close to the support; the abutting device comprises a power assembly and an abutting plate, an arc-shaped clamping groove matched with the end of the wind power tower is formed in the middle of the abutting plate, and a plurality of balls are arranged in the clamping groove. The angle and rotation of the wind power tower can be adjusted, the manual burden is relieved, the safety is improved, it can be guaranteed that the butt joint precision is kept consistent, and welding seam deviation is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power towers, and in particular relates to a submerged arc welding equipment tool for a wind power tower. Background Art

[0002] The wind turbine tower is the "backbone" of the wind power generation system, a tower-shaped steel structure that supports the wind turbine generator set (nacelle, blades). Its height and structural strength directly determine the unit's ability to capture more stable and high-energy wind resources, thereby significantly improving power generation efficiency. At the same time, as the key carrier connecting the wind turbine to the foundation, the wind turbine tower must withstand extreme wind loads, earthquakes, and dynamic loads caused by blade rotation. Its design reliability is crucial to the safe operation of the entire wind farm over its 25-year life cycle. With the development of large-megawatt units and offshore wind power, wind turbine towers are evolving towards taller, lighter, and more intelligent structures. This not only enables wind turbines to break through the limitations of low wind speeds and deep seas, but also reduces the cost per kilowatt-hour through modularization and hybrid tower technology, becoming a core technical support for the scale-up and affordable development of the wind power industry.

[0003] During the fabrication process, flange welding is required for the transition section of a wind turbine tower. Submerged arc welding (SAW) is typically used, offering advantages such as deep penetration, uniform weld formation, high welding speed, concentrated heat input, and stable arc. This significantly improves weld quality and reduces subsequent repairs. The wind turbine tower needs to be rotated during welding. Traditionally, this process was performed manually, but due to the tower's heavy weight, manual operation is labor-intensive and carries significant safety risks. Furthermore, it's difficult to maintain consistent rotation speed and seam alignment, which can easily cause weld offset and compromise the load-bearing capacity of the entire tower. Summary of the Invention

[0004] The present invention aims to provide a wind power tower submerged arc welding equipment tooling to solve the technical problems raised in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A wind power tower submerged arc welding equipment tooling, comprising: a platform, a workbench, an abutment device and a rotating device; The workbench is located on the upper part of the platform, with its end hinged to a support at one end of the upper part of the platform, its middle part hinged to one end of a telescopic rod, and the other end of the telescopic rod hinged to the middle part of the platform; and the telescopic rod is connected to a drive assembly, and the drive assembly is used to control the extension and contraction of the telescopic rod; The abutment device and the rotating device are provided on the upper part of the workbench; the abutment device is away from the support and is used to prevent the wind turbine tower on the workbench from falling; the rotating device is close to the support and is used to control the wind turbine tower to rotate along its axis; The abutment device includes a power assembly and an abutment plate. The power assembly drives the abutment plate to move in the front, back, left and right directions relative to the workbench. The middle part of the abutment plate is provided with an arc-shaped slot that is adapted to the end of the wind turbine tower, and a plurality of balls are provided inside the slot.

[0006] As a further improvement of the present invention, the power assembly includes a forward and backward motion mechanism, and the forward and backward motion mechanism includes a fixed frame, a drive motor, a lead screw and a movable frame; The fixed frame is fixedly connected to the workbench, and the drive motor and the lead screw are provided on the upper part of the fixed frame. The output shaft of the drive motor is coaxially connected to the lead screw through a coupling. The lead screw extends along the connecting line direction of the abutment device and the rotating device. The lead screw is threadedly connected to the bottom of the movable frame, and the abutment plate is provided on the upper part of the movable frame.

[0007] As a further improvement of the present invention, the forward and backward movement mechanism further includes a plurality of slide rails mounted on the upper portion of the fixing frame, and a plurality of sliders slidably engaged with the slide rails; The slide rail and the lead screw extend in the same direction, and the slider is mounted on the bottom of the moving frame.

[0008] As a further improvement of the present invention, the power assembly includes a left-right motion mechanism, the left-right motion mechanism includes a cylinder, the cylinder is installed on the upper part of the movable frame, and its piston rod is connected to the abutment plate; A slide groove is provided on the upper portion of the movable frame, and a slide plate is provided on the bottom of the abutment plate for slidingly cooperating with the slide groove. The slide groove extends in a vertical direction along a line connecting the abutment device and the rotating device.

[0009] As a further improvement of the present invention, a cavity is provided in the middle of the workbench, and the side walls of the cavity are fixedly connected to the side walls of the fixing frame by bolts.

[0010] As a further improvement of the present invention, the rotating device includes a rotating motor and a rotating frame, the rotating motor is mounted on the upper part of the workbench through a motor seat, the output shaft of the rotating motor extends in the direction of the abutment device and is coaxially connected to the rotating frame through a coupling; The rotating frame includes a connecting portion and a fixing portion, the connecting portion is coaxially connected to the rotating motor; the fixing portion is located on the side of the connecting portion away from the rotating motor, is annular, and includes an outer ring plate and an inner ring plate, and the interior of the annular groove formed by the outer ring plate and the inner ring plate is used to fix the wind turbine tower.

[0011] As a further improvement of the present invention, a plurality of screw holes are provided on the outer ring plate and the inner ring plate in the circumferential direction, and the screw holes on the outer ring plate and the screw holes on the inner ring plate are arranged alternately.

[0012] As a further improvement of the present invention, a mounting seat is provided at the lower portion of the workbench, and the mounting seat is hinged to one end of the telescopic rod.

[0013] As a further improvement of the present invention, the telescopic rod is a multi-stage hydraulic rod; The driving assembly includes a guide tube and a hydraulic cylinder connected to the guide tube, and the guide tube is connected to the telescopic rod.

[0014] As a further improvement of the present invention, two abutting plates are provided.

[0015] The beneficial effects of adopting the above technical solution are: The present invention provides a workbench for placing the wind turbine tower, and provides a telescopic rod and a drive assembly to adjust the angle of the workbench, thereby adjusting the angle of the wind turbine tower, avoiding the operation of manually adjusting the wind turbine tower, saving manpower and increasing safety during welding.

[0016] The wind turbine tower is blocked and limited by setting a power component and an abutment plate to prevent the tower from sliding under the action of gravity due to the large angle between the workbench and the platform, which causes the welding position to shift.

[0017] By setting up a rotating device connected to the wind turbine tower, the wind turbine tower is driven to rotate, and there is no need for manual operation of the wind turbine tower, which reduces the labor burden, increases safety, and can ensure consistency with the seam accuracy to prevent weld deviation; slots and balls are set on the abutment plate, so that the wind turbine tower can also rotate when in contact with the abutment plate, without affecting the rotation of the wind turbine tower.

[0018] The invention has the advantages of simple structure, convenient operation and control, and is suitable for wide use in welding of wind power towers. It complies with the national development strategy of "safety, efficiency, greenness and intelligence" of wind power and the requirements of the latest technical specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another angle; Figure 3 for Figure 1 A magnified view of point A; Figure 4 It is a structural schematic diagram of the abutment device of the present invention; Figure 5 It is a partial structural schematic diagram of the abutment device of the present invention; Figure 6 It is a structural schematic diagram of the rotating device of the present invention; Explanation of the marks in the figure: 1 Platform, 1-1 Support, 2 Workbench, 2-1 Mounting seat, 2-2 Cavity, 3 Abutment device, 3-1 Abutment plate, 3-2 Slot, 3-3 Ball, 3-4 Fixed frame, 3-5 Drive motor, 3-6 Screw, 3-7 Moving frame, 3-8 Slide rail, 3-9 Slider, 3-10 Cylinder, 3-11 Piston rod, 3-12 Slide groove, 3-13 Slide plate, 4 Rotating device, 4-1 Rotating motor, 4-2 Motor seat, 4-3 Rotating frame, 4-4 Connecting part, 4-5 Fixed part, 4-6 Outer ring plate, 4-7 Inner ring plate, 4-8 Annular groove, 4-9 Screw hole, 5 Telescopic rod. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the present invention, the present invention is clearly and completely described below with reference to the accompanying drawings.

[0021] like Figures 1-6 The wind power tower submerged arc welding equipment shown includes: a platform 1, a workbench 2, an abutment device 3 and a rotating device 4; The workbench 2 is located on the upper part of the platform 1, with its end hinged to the support 1-1 at one end of the upper part of the platform 1, and its middle part hinged to one end of the telescopic rod 5, and the other end of the telescopic rod 5 is hinged to the middle part of the platform 1; and the telescopic rod 5 is connected to a drive assembly, and the drive assembly is used to control the extension and contraction of the telescopic rod 5; In this embodiment, at least two telescopic rods 5 are arranged side by side to support the workbench 2. During operation, the telescopic rods 5 extend and retract synchronously. Due to the articulated connection between the telescopic rods 5 and the platform 1 and the workbench 2, the angle between the two platforms is adjusted, thereby adjusting the angle of the wind turbine tower on the workbench 2, eliminating the need for manual adjustment of the wind turbine tower angle. Specifically, the telescopic rods 5 are multi-stage hydraulic rods; the drive assembly includes a conduit and a hydraulic cylinder connected to the conduit. The conduit is connected to the telescopic rods 5, and the hydraulic cylinder and valve on the conduit are connected to a controller. By operating the controller, the telescopic rods 5 are extended and retracted to adjust the angle of the wind turbine tower, saving manpower and increasing safety during welding.

[0022] Furthermore, a mounting base 2-1 is provided at the lower portion of the workbench 2, and the mounting base 2-1 is hinged to one end of the telescopic rod 5. The telescopic rod 5 is hinged to the mounting base 2-1 and the support 1-1 via a pin.

[0023] The abutment device 3 and the rotating device 4 are provided on the upper part of the workbench 2; the abutment device 3 is away from the support 1-1 and is used to prevent the wind turbine tower on the workbench 2 from falling; the abutment device 3 includes a power assembly and an abutment plate 3-1, and the power assembly drives the abutment plate 3-1 to move in the front, back, left, and right directions relative to the workbench 2; In this embodiment, two abutment plates 3-1 are provided to block the end of the wind turbine tower away from the support 1-1, preventing the tower from sliding under gravity due to an excessive angle between the workbench 2 and the platform 1, which could cause the welding position to shift. Furthermore, the power assembly includes a forward and backward motion mechanism and a left and right motion mechanism, respectively used to drive the abutment plates 3-1 toward and away from the support 1-1, as well as in directions perpendicular to these directions.

[0024] Furthermore, the forward and backward motion mechanism includes a fixed frame 3-4, a drive motor 3-5, a lead screw 3-6, and a movable frame 3-7; the fixed frame 3-4 is fixedly connected to the workbench 2, specifically, a cavity 2-2 is provided in the middle of the workbench 2, and the side walls of the cavity 2-2 are fixedly connected to the side walls of the fixed frame 3-4 by bolts. The upper portion of the fixed frame 3-4 is provided with the drive motor 3-5 and the lead screw 3-6, the output shaft of the drive motor 3-5 is coaxially connected to the lead screw 3-6 via a coupling, the lead screw 3-6 extends along the line connecting the abutment device 3 and the rotating device 4, the lead screw 3-6 is threadedly connected to the bottom of the movable frame 3-7, and the upper portion of the movable frame 3-7 is provided with the abutment plate 3-1. When the driving electrical appliance is working, its output shaft rotates forward and reverse, driving the screw 3-6 forward and reverse. Since the screw 3-6 is threadedly connected to the bottom of the movable frame 3-7, it can drive the movable frame 3-7 to move closer to or away from the support 1-1, so that the abutment plate 3-1 on the movable frame 3-7 contacts the wind turbine tower to limit it.

[0025] Furthermore, to enable the lead screw 3-6 to drive the movable frame 3-7, the interior of the movable frame 3-7 can be configured to be hollow, reducing its weight while maintaining a certain load-bearing capacity. To prevent the movable frame 3-7 from shifting, the forward and backward motion mechanism further includes a plurality of slide rails 3-8 mounted on the upper portion of the fixed frame 3-4, and a plurality of sliders 3-9 that slidably engage with the slide rails 3-8. The slide rails 3-8 extend in the same direction as the lead screw 3-6, and the sliders 3-9 are mounted on the bottom of the movable frame 3-7. The slide rails 3-8 and the sliders 3-9 cooperate to guide the movement of the movable frame 3-7.

[0026] Furthermore, the left-right motion mechanism includes a cylinder 3-10 mounted on the upper portion of the movable frame 3-7, with its piston rod 3-11 connected to the abutment plate 3-1. Two cylinders 3-10 are provided, each connected to the two abutment plates 3-1 and symmetrically mounted on either side of the movable frame 3-7. A slide 3-12 is provided on the upper portion of the movable frame 3-7, and a slide plate 3-13 is provided at the bottom of the abutment plate 3-1, which slidably engages with the slide 3-12. The slide 3-12 extends perpendicular to the line connecting the abutment device 3 and the rotating device 4. The two cylinders 3-10 operate synchronously, and their piston rods 3-11 drive the abutment plate 3-1 toward or away from the center of the workbench 2, enabling it to contact the wind turbine tower. The slide plate 3-13 at the bottom of the abutment plate 3-1 cooperates with the slide 3-12 to guide the movement of the abutment plate 3-1.

[0027] The rotating device 4 is close to the support 1-1 and is used to control the rotation of the wind tower along its axis; the middle part of the abutment plate 3-1 is provided with an arc-shaped slot 3-2 adapted to the end of the wind tower, and the interior of the slot 3-2 is provided with a plurality of balls 3-3, so that the wind tower can also rotate when in contact with the abutment plate 3-1, thereby adjusting the rotation of the wind tower.

[0028] In this embodiment, the rotating device 4 includes a rotating motor 4-1 and a rotating frame 4-3. The rotating motor 4-1 is mounted on the upper part of the workbench 2 through a motor base 4-2. The output shaft of the rotating motor extends in the direction of the abutting device 3 and is coaxially connected to the rotating frame 4-3 through a coupling. The rotating frame 4-3 includes a connecting portion 4-4 and a fixing portion 4-5. The connecting portion 4-4 is coaxially connected to the rotating motor 4-1. The fixing portion 4-5 is located on the side of the connecting portion 4-4 away from the rotating motor 4-1 and is annular. It includes an outer ring plate 4-6 and an inner ring plate 4-7. The inner portion of the annular groove 4-8 formed by the outer ring plate 4-6 and the inner ring plate 4-7 is used to fix the wind turbine tower. When the rotating motor 4-1 is in operation, it drives the connecting portion 4-4 and the fixing portion 4-5 to rotate, thereby driving the wind turbine tower within the annular groove 4-8 to rotate. The other end of the wind turbine tower contacts the ball 3-3, allowing it to rotate along its axis for adjustment. This eliminates the need for manual operation of the wind turbine tower, reduces labor burden, and increases safety. The rotation speed can be adjusted by adjusting the controller of the rotating motor 4-1 to maintain consistency with the seam alignment accuracy and prevent weld deviation.

[0029] Furthermore, a plurality of screw holes 4-9 are provided in the circumferential direction of the outer ring plate 4-6 and the inner ring plate 4-7, and the screw holes 4-9 are evenly distributed along the circumferential direction, and the screw holes 4-9 on the outer ring plate 4-6 and the screw holes 4-9 on the inner ring plate 4-7 are staggered; the end of the wind turbine tower is located in the annular groove 4-8 and is fixed by inserting the top screw into the screw hole 4-9. Since the screw holes 4-9 on the outer ring plate 4-6 and the inner ring plate 4-7 are staggered, the fixing force on the wind turbine tower is more uniform.

[0030] During actual welding, a submerged arc welding device is set on one side of the tooling. Initially, two abutment plates 3-1 are located on both sides of the workbench 2 to prevent interference with the placement of the wind turbine tower. First, the wind turbine tower is placed on the workbench 2 by a lifting tool such as a crane, so that one end of the wind turbine tower is located inside the annular groove 4-8; then the drive motor 3-5 and the cylinder 3-10 are started, and the position of the abutment plate 3-1 is adjusted so that the other end of the wind turbine tower is located inside the slot 3-2 and in contact with the ball 3-3; then bolts are installed in the screw holes 4-9 to fix the end of the wind turbine tower; then the drive assembly is adjusted to adjust the angle of the workbench 2, that is, the angle of the wind turbine tower is adjusted so that the seam corresponds to the welding head; then the welding equipment and the rotating motor 4-1 are turned on, the wind turbine tower rotates, and the welding equipment performs flange welding on the wind turbine tower to complete the welding work.

[0031] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A wind power tower submerged arc welding equipment tooling, characterized by: It includes: A platform (1), a workbench (2), an abutment device (3) and a rotating device (4); The workbench (2) is located on the upper part of the platform (1), and its end is hinged to the support (1-1) at one end of the upper part of the platform (1), and its middle part is hinged to one end of the telescopic rod (5), and the other end of the telescopic rod (5) is hinged to the middle part of the platform (1); and the telescopic rod (5) is connected to a drive assembly, and the drive assembly is used to control the extension and shortening of the telescopic rod (5); The upper part of the workbench (2) is provided with the abutment device (3) and the rotation device (4); the abutment device (3) is away from the support (1-1) and is used to prevent the wind turbine tower on the workbench (2) from falling; the rotation device (4) is close to the support (1-1) and is used to control the wind turbine tower to rotate along its axis; The abutment device (3) comprises a power assembly and an abutment plate (3-1); the power assembly drives the abutment plate (3-1) to move in the front, rear, left, and right directions relative to the workbench (2); an arc-shaped slot (3-2) adapted to the end of the wind power tower is provided in the middle of the abutment plate (3-1); and a plurality of balls (3-3) are provided inside the slot (3-2).

2. A wind power tower submerged arc welding equipment tooling according to claim 1, characterized in that: The power assembly includes a front-to-back motion mechanism, which includes a fixed frame (3-4), a drive motor (3-5), a lead screw (3-6) and a movable frame (3-7); The fixed frame (3-4) is fixedly connected to the workbench (2), and the driving motor (3-5) and the lead screw (3-6) are provided on the upper part thereof. The output shaft of the driving motor (3-5) is coaxially connected to the lead screw (3-6) through a coupling. The lead screw (3-6) extends along the connecting line between the abutment device (3) and the rotating device (4). The lead screw (3-6) is threadedly connected to the bottom of the movable frame (3-7), and the upper part of the movable frame (3-7) is provided with the abutment plate (3-1).

3. The wind power tower submerged arc welding equipment tooling according to claim 2, characterized in that: The forward and backward movement mechanism further comprises a plurality of slide rails (3-8) mounted on the upper portion of the fixing frame (3-4), and a plurality of sliders (3-9) slidably engaged with the slide rails (3-8); The slide rail (3-8) and the lead screw (3-6) extend in the same direction, and the slider (3-9) is installed at the bottom of the movable frame (3-7).

4. The wind power tower submerged arc welding equipment tooling according to claim 2, characterized in that: The power assembly includes a left-right motion mechanism, and the left-right motion mechanism includes a cylinder (3-10). The cylinder (3-10) is installed on the upper part of the movable frame (3-7), and its piston rod (3-11) is connected to the abutment plate (3-1); A sliding groove (3-12) is provided on the upper portion of the movable frame (3-7), and a sliding plate (3-13) is provided on the bottom of the abutting plate (3-1) for slidingly cooperating with the sliding groove (3-12). The sliding groove (3-12) extends in a vertical direction along a line connecting the abutting device (3) and the rotating device (4).

5. The wind power tower submerged arc welding equipment tooling according to claim 2, characterized in that: A cavity (2-2) is provided in the middle of the workbench (2), and the side wall of the cavity (2-2) is fixedly connected to the side wall of the fixing frame (3-4) by means of bolts.

6. The wind power tower submerged arc welding equipment tooling according to claim 1, characterized in that: The rotating device (4) comprises a rotating motor (4-1) and a rotating frame (4-3); the rotating motor (4-1) is mounted on the upper portion of the workbench (2) via a motor seat (4-2); its output shaft extends in the direction of the abutting device (3) and is coaxially connected to the rotating frame (4-3) via a coupling; The rotating frame (4-3) includes a connecting portion (4-4) and a fixing portion (4-5), wherein the connecting portion (4-4) is coaxially connected to the rotating motor (4-1); the fixing portion (4-5) is located on a side of the connecting portion (4-4) away from the rotating motor (4-1), is annular, and includes an outer ring plate (4-6) and an inner ring plate (4-7), wherein the interior of the annular groove (4-8) formed by the outer ring plate (4-6) and the inner ring plate (4-7) is used to fix the wind power tower.

7. The wind power tower submerged arc welding equipment tooling according to claim 6, characterized in that: The outer ring plate (4-6) and the inner ring plate (4-7) are both provided with a plurality of screw holes (4-9) in the circumferential direction, and the screw holes (4-9) on the outer ring plate (4-6) and the screw holes (4-9) on the inner ring plate (4-7) are arranged in an alternating manner.

8. The wind power tower submerged arc welding equipment tooling according to claim 1, characterized in that: A mounting seat (2-1) is provided at the lower portion of the workbench (2), and the mounting seat (2-1) is hinged to one end of the telescopic rod (5).

9. The wind power tower submerged arc welding equipment tooling according to claim 1, characterized in that: The telescopic rod (5) is a multi-stage hydraulic rod; The driving assembly comprises a conduit and a hydraulic cylinder connected to the conduit, and the conduit is connected to the telescopic rod (5).

10. The wind power tower submerged arc welding equipment tooling according to claim 1, characterized in that: Two abutment plates (3-1) are provided.

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