A welding platform for wind turbine tower frame

Abstract

This utility model discloses a welding platform for a wind turbine tower frame, including a first support frame and a second support frame. The first and second support frames are symmetrically arranged, and fixed rods are symmetrically fixed to the top of the first and second support frames. A first hydraulic cylinder is fixedly installed at the top center of the fixed rod, and a lifting rod is fixed to the piston rod end of the first hydraulic cylinder through the fixed rod. The lifting rod contacts the wind turbine tower. A ladder is provided inside the first support frame, and a maintenance platform is provided at the top of the ladder. This wind turbine tower frame welding platform drives the lifting rod and the first arc-shaped positioning plate to press down through the first hydraulic cylinder. Combined with the second arc-shaped positioning plate at the bottom of the maintenance platform, a double clamping structure is formed to ensure the stability of the wind turbine tower during welding. The inner side of the arc-shaped positioning plate is provided with an anti-slip pad and equipped with positioning wheels, which presses down stably on the outer side of the tower, effectively preventing the frame from shifting during welding and significantly improving welding accuracy and structural strength.

Description

Technical Field

[0001] This utility model relates to the field of welding platform technology, specifically a welding platform for wind turbine tower frame. Background Technology

[0002] The wind turbine tower is the main equipment supporting the high-altitude wind turbine generator. Offshore wind turbine towers are generally about 85 meters high and are divided into 4 sections, with the bottom section having a diameter of about 7-7.5 meters. Each tower has a tower door at the bottom section. When installing the tower door frame, the tower (which is cylindrical in shape) is placed horizontally. After the door frame is installed, operators need to manually weld the outer seams of the tower using gas shielded welding.

[0003] Traditional platforms lack effective arc-shaped positioning mechanisms, making it difficult to fit tightly against the outer wall of the tower. This leads to easy displacement of the door frame position during welding, affecting welding quality. According to a wind turbine tower door frame welding platform disclosed in patent number CN 222890799 U, the tower tube needs to be hoisted onto the base plate by equipment during welding. In use, the support frame is moved by the threaded engagement between the positive and negative screws and the threaded frame, and the spacing between the support frames is adjusted to fix the position of the tower. This existing device still requires hoisting the tower during the welding process of the tower door frame, which is labor-intensive and has low welding efficiency. Therefore, we propose a wind turbine tower door frame welding platform. Utility Model Content

[0004] The purpose of this utility model is to provide a welding platform for wind turbine tower frame to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding platform for a wind turbine tower frame, comprising a first support frame and a second support frame, the first support frame and the second support frame being symmetrically arranged, and a fixing rod being symmetrically fixed to the top of the first support frame and the second support frame. A first hydraulic cylinder is fixedly installed at the top center of the fixing rod, and a lifting rod is fixedly connected to the piston rod end of the first hydraulic cylinder through the fixing rod, and the lifting rod is in contact with the wind turbine tower. A ladder is provided inside the first support frame, and a maintenance platform is provided at the top of the ladder. A second arc-shaped positioning plate that cooperates with the outside of the wind turbine tower is symmetrically installed at the bottom of the maintenance platform, and a second positioning wheel is symmetrically installed at both ends of the second arc-shaped positioning plate.

[0006] Preferably, mounting plates are integrally provided symmetrically at both ends of the bottom of the first support frame and the second support frame, and the bottom of the mounting plate is located in the same plane as the bottom of the first support frame and the second support frame. Mounting holes are provided on the surface of the mounting plate.

[0007] Preferably, the bottom end of the ladder is symmetrically provided with mounting bases, the mounting bases are fixedly installed on the ground, the top end of the mounting bases is provided with a U-shaped groove, and the bottom end of the ladder is rotatably connected to the inside of the U-shaped groove through a mounting shaft.

[0008] Preferably, the inner walls of the first support frame and the second support frame are symmetrically and integrally provided with protruding plates, and a second hydraulic cylinder is fixedly installed on the top of the protruding plate. The piston rod end of the second hydraulic cylinder passes through the protruding plate and is fixedly connected to a self-locking wheel.

[0009] Preferably, the bottom of the lifting rod is fixedly connected to a No. 1 arc-shaped positioning plate that cooperates with the outside of the wind turbine tower, and both ends of the No. 1 arc-shaped positioning plate are equipped with No. 1 positioning wheels.

[0010] Preferably, the top of the first arc-shaped positioning plate is symmetrically fixed with a limiting rod, and the top of the fixing rod is symmetrically provided with a limiting sliding hole, and the limiting rod is slidably connected inside the limiting sliding hole.

[0011] Preferably, the bottom of the inner wall of the maintenance platform is provided with a working opening.

[0012] Preferably, anti-slip pads are provided in the arc grooves of both the first and second arc positioning plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a first hydraulic cylinder to drive the lifting rod and the first arc-shaped positioning plate to press down, which, together with the second arc-shaped positioning plate at the bottom of the maintenance platform, forms a double clamping structure to ensure that the wind turbine tower remains stable during the welding process. The inner side of the arc-shaped positioning plate is equipped with an anti-slip pad and a positioning wheel, which presses down stably on the outer side of the tower, effectively preventing the door frame from shifting during welding and significantly improving welding accuracy and structural strength.

[0015] 2. The support frame of this utility model is equipped with liftable self-locking wheels and a mounting plate at the bottom, which facilitates quick movement and device fixation, adapting to the needs of different work sites. The ladder and maintenance platform are integrated into one design, allowing personnel to easily reach the work position. The maintenance platform has a working opening for convenient welding operations, significantly reducing installation and adjustment time and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the maintenance platform structure of this utility model.

[0019] In the diagram: 1. First support frame; 2. Second support frame; 3. Fixed rod; 4. First hydraulic cylinder; 5. Lifting rod; 6. First arc-shaped positioning plate; 7. First positioning wheel; 8. Ladder; 9. Mounting base; 10. Maintenance platform; 11. Working port; 12. Second hydraulic cylinder; 13. Self-locking wheel; 14. Mounting plate; 15. Limiting rod; 16. Second arc-shaped positioning plate; 17. Second positioning wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a welding platform for a wind turbine tower frame, including a first support frame 1 and a second support frame 2. The first support frame 1 and the second support frame 2 are symmetrically arranged, and a fixing rod 3 is symmetrically fixed to the top of the first support frame 1 and the second support frame 2. A first hydraulic cylinder 4 is fixedly installed at the top center of the fixing rod 3, and a lifting rod 5 is fixedly connected to the piston rod end of the first hydraulic cylinder 4 through the fixing rod 3, and the lifting rod 5 is in contact with the wind turbine tower.

[0022] It should be noted that the first support frame 1 and the second support frame 2 are fixedly connected by two fixing rods 3, so that the entire device is located outside the wind turbine tower. The two lifting rods 5 press down on the wind turbine tower, which can fix the position of the wind turbine tower and prevent the wind turbine tower from shifting during the welding of the door frame.

[0023] The first support frame 1 is equipped with a ladder 8, and the top of the ladder 8 is equipped with a maintenance platform 10. The bottom of the maintenance platform 10 is symmetrically equipped with a second arc-shaped positioning plate 16 that cooperates with the outside of the wind turbine tower, and the two ends of the second arc-shaped positioning plate 16 are symmetrically equipped with second positioning wheels 17.

[0024] It should be noted that the maintenance platform 10 is a platform with guardrails, which is installed at the end of the ladder 8. The second arc-shaped positioning plate 16 at the bottom of the maintenance platform 10 is pressed down on the outside of the wind turbine tower to ensure the stability of the wind turbine tower during the welding process and to avoid the tower moving during welding, which would cause the welding position to deviate.

[0025] Please see Figure 1 and Figure 2The bottom ends of the first support frame 1 and the second support frame 2 are symmetrically and integrally provided with mounting plates 14, and the bottom of the mounting plate 14 is located in the same plane as the bottom of the first support frame 1 and the second support frame 2. Mounting holes are provided on the surface of the mounting plate 14.

[0026] It should be noted that after the first support frame 1 and the second support frame 2 are supported on the ground, the mounting plate 14 at their bottom is located on the ground, making the overall support stable. The mounting plate 14 has mounting holes, which can be used to stabilize the device on the ground and improve the welding quality.

[0027] Please see Figure 1 The bottom end of the ladder 8 is symmetrically provided with mounting bases 9, which are fixedly installed on the ground. The top end of the mounting base 9 is provided with a U-shaped groove, and the bottom end of the ladder 8 is rotatably connected to the inside of the U-shaped groove through a mounting shaft.

[0028] It should be noted that, in the initial state of use, the self-locking wheels 13 on the first support frame 1 and the second support frame 2 are in contact with the ground, and the piston rod of the second hydraulic cylinder 12 is in an extended state. At this time, the entire device can be moved, and the device is pushed to position the first support frame 1 and the second support frame 2 in a symmetrical position outside the wind turbine tower. After the device position is determined, the piston rod of the second hydraulic cylinder 12 is controlled to retract, so that the self-locking wheels 13 are raised. The mounting plates 14 at the bottom of the first support frame 1 and the second support frame 2 and the mounting seats 9 on the ladder 8 are in contact with the ground. The mounting plates 14 and the mounting seats 9 are fixed to the ground by the mounting parts. The second arc-shaped positioning plate 16 at the bottom of the maintenance platform 10 is pressed against the upper part of the wind turbine tower. At the same time, the device control system controls the first hydraulic cylinder 4 to work, so that the first arc-shaped positioning plate 6 at the bottom of the lifting rod 5 is pressed down on the outside of the wind turbine tower, so that the position of the wind turbine tower is stable. Personnel can reach the maintenance platform 10 through the ladder 8 to carry out the welding work of the wind turbine tower door frame.

[0029] Please see Figure 2 The inner walls of the first support frame 1 and the second support frame 2 are symmetrically and integrally provided with protruding plates, and the top of the protruding plate is fixedly installed with a second hydraulic cylinder 12. The piston rod end of the second hydraulic cylinder 12 passes through the protruding plate and is fixedly connected with a self-locking wheel 13.

[0030] It should be noted that the cooperation between the second hydraulic cylinder 12 and the self-locking wheel 13 allows the self-locking wheel 13 to be kept in contact with the ground when not in use, so that the device can be moved directly, making it more convenient to use.

[0031] Please see Figure 1 and Figure 3 The bottom of the lifting rod 5 is fixed with a No. 1 arc-shaped positioning plate 6 that matches the outside of the wind turbine tower. Both ends of the No. 1 arc-shaped positioning plate 6 are equipped with No. 1 positioning wheels 7.

[0032] It should be noted that the No. 1 arc-shaped positioning plate 6 can be pressed down on the outside of the wind turbine tower, and the two No. 1 positioning wheels 7 are in contact with the wind turbine tower and are symmetrically arranged on both sides of the wind turbine tower, which can fix the position of the wind turbine tower and prevent movement during welding.

[0033] Please see Figure 1 and Figure 2 The top of the first arc-shaped positioning plate 6 is symmetrically fixed with a limiting rod 15, and the top of the fixing rod 3 is symmetrically opened with a limiting sliding hole. The limiting rod 15 is slidably connected inside the limiting sliding hole.

[0034] It should be noted that the setting of the limit rod 15 makes the lifting and lowering of the No. 1 arc-shaped positioning plate 6 more stable, ensuring that the No. 1 arc-shaped positioning plate 6 presses down firmly on the wind turbine tower, making the wind turbine tower door frame more stable during welding.

[0035] Please see Figure 2 The bottom of the inner wall of the maintenance platform 10 is provided with an operating opening 11.

[0036] It should be noted that the design of the working port 11 facilitates the welding of the door frame.

[0037] Please see Figure 3 Anti-slip pads are provided in the arc grooves of both the No. 1 arc positioning plate 6 and the No. 2 arc positioning plate 16.

[0038] It should be noted that the anti-slip pads increase the friction between the positioning plate and the wind turbine tower, thereby enhancing the stability of the wind turbine tower positioning.

[0039] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding platform for a wind turbine tower frame, characterized in that, The system includes a first support frame (1) and a second support frame (2). The first support frame (1) and the second support frame (2) are symmetrically arranged, and a fixed rod (3) is symmetrically fixed at the top of the first support frame (1) and the second support frame (2). A first hydraulic cylinder (4) is fixedly installed at the top center of the fixed rod (3), and a lifting rod (5) is fixedly connected to the piston rod end of the first hydraulic cylinder (4) through the fixed rod (3). The lifting rod (5) is in contact with the wind turbine tower. A ladder (8) is provided inside the first support frame (1), and a maintenance platform (10) is provided at the top of the ladder (8). A second arc-shaped positioning plate (16) that cooperates with the outside of the wind turbine tower is symmetrically installed at the bottom of the maintenance platform (10), and a second positioning wheel (17) is symmetrically installed at both ends of the second arc-shaped positioning plate (16).

2. The wind turbine tower frame welding platform according to claim 1, characterized in that: The first support frame (1) and the second support frame (2) are symmetrically and integrally provided with mounting plates (14) at both ends of the bottom. The bottom of the mounting plate (14) is located in the same plane as the bottom of the first support frame (1) and the second support frame (2). The surface of the mounting plate (14) is provided with mounting holes.

3. The wind turbine tower frame welding platform according to claim 1, characterized in that: The bottom end of the ladder (8) is symmetrically provided with mounting bases (9), which are fixedly installed on the ground. The top end of the mounting base (9) is provided with a U-shaped groove, and the bottom end of the ladder (8) is rotatably connected to the inside of the U-shaped groove through a mounting shaft.

4. The wind turbine tower frame welding platform according to claim 1, characterized in that: The inner walls of the first support frame (1) and the second support frame (2) are symmetrically and integrally provided with protruding plates, and a second hydraulic cylinder (12) is fixedly installed on the top of the protruding plate. The piston rod end of the second hydraulic cylinder (12) passes through the protruding plate and is fixedly connected to a self-locking wheel (13).

5. The wind turbine tower frame welding platform according to claim 1, characterized in that: The bottom of the lifting rod (5) is fixedly connected to a No. 1 arc-shaped positioning plate (6) that cooperates with the outside of the wind turbine tower. Both ends of the No. 1 arc-shaped positioning plate (6) are equipped with No. 1 positioning wheels (7).

6. A welding platform for a wind turbine tower frame according to claim 5, characterized in that: The top of the first arc-shaped positioning plate (6) is symmetrically fixed with a limiting rod (15), and the top of the fixing rod (3) is symmetrically provided with a limiting sliding hole. The limiting rod (15) is slidably connected inside the limiting sliding hole.

7. The wind turbine tower frame welding platform according to claim 1, characterized in that: The maintenance platform (10) has a working opening (11) at the bottom of its inner wall.

8. A welding platform for a wind turbine tower frame according to claim 5, characterized in that: Anti-slip pads are provided in the arc grooves of both the No. 1 arc positioning plate (6) and the No. 2 arc positioning plate (16).

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