A basket guiding structure for wind turbine maintenance

Abstract

The utility model relates to wind power generation technical field, and disclose a kind of for wind turbine maintenance's basket guiding structure, the basket guiding structure for wind turbine maintenance, including basket body, the upper of basket body is provided with guiding assembly.This basket guiding structure for wind turbine maintenance, the outer wall of basket body is attached to tower barrel outer wall, reduce gap and sway space, arc design makes the distance between worker and tower barrel closer, is favorable to carry out surface crack inspection, coating repair, bolt fastening etc. Operation, arc attachment design can also automatically guide basket direction, guiding rope is always in tension state and path is clear in the process of basket body lifting, prevent basket body from causing partial swing when lifting due to guiding rope floating, deviation etc., limiting rope is as transverse tension device, provide stable traction effect, ensure that basket body is attached to tower barrel curved surface, limit its deviation range in horizontal direction.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a basket guide structure for wind turbine generator maintenance. Background Technology

[0002] With the rapid development of wind power generation technology, wind turbines are increasingly moving towards larger sizes, taller towers, higher altitudes, and more complex environments, which also increases the difficulty of operation and maintenance. In particular, during the operation of wind turbines, parts such as the tower and nacelle are easily affected by environmental factors, resulting in wear, cracks, loosening, and other problems. Regular inspections and maintenance are required to ensure power generation efficiency and equipment safety. However, traditional maintenance methods often rely on climbing ropes for work, which is not only inefficient and unstable, but also poses significant safety risks.

[0003] According to a public notice of a guide rope type suspended platform (publication number: CN221856149U), the above application includes an installation frame, which is provided in two sets, and a vertical frame is fixed on the top of the installation frame. A horizontal frame is fixed on the surface of the vertical frame. An I-beam is fixedly installed on one side of the installation frame located on the vertical frame. A guide wire rope is provided on the surface of the I-beam, and a traction wire rope passes through a first rope pulley and a second rope pulley.

[0004] However, in actual use, although the guide steel wire rope serves as a track to guide the lifting and lowering of the suspended platform, its non-vertical and symmetrical distribution, and the ability to adjust its angle for obstacle avoidance, results in a weak and uneven lateral constraint force on the platform. When the platform operates on the curved surface of the wind turbine tower or in strong winds, it will experience asymmetrical forces and is prone to swaying from side to side. In view of this, we propose a guide structure for a suspended platform used in the maintenance of wind turbine generator sets. Utility Model Content

[0005] The purpose of this invention is to provide a basket guide structure for wind turbine generator maintenance, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a basket guide structure for wind turbine generator maintenance, comprising a basket body, a guide assembly disposed above the basket body, the guide assembly comprising:

[0007] A support frame, wherein a guide wheel is rotatably connected to the outer wall of the support frame, and a winch is fixedly connected to the side wall of the support frame, and a traction rope is wound around the side wall of the winch;

[0008] The frame body, with rollers rotatably connected to its inner wall;

[0009] A clamp, wherein a guide rope is fixedly connected to the top end face of the clamp;

[0010] A limiting rope is fixedly connected to the outer wall of the frame.

[0011] Preferably, the bracket is fixedly connected to the top of the wind turbine, one end of the traction rope is fixedly connected to the winding roller of the winch, the traction rope is movably connected to the guide wheel, and a fixing block is fixedly connected to the end of the traction rope away from the winch. The fixing block is fixedly connected to the inner wall of the basket body.

[0012] Preferably, the winch includes a connecting frame fixedly connected to the outer wall of the support, a drive motor fixedly connected to the side wall of the connecting frame, a take-up roller fixedly connected to the output end of the drive motor, and the take-up roller being rotatably connected to the inner wall of the connecting frame.

[0013] Preferably, the frame is fixedly connected to the outer wall of the suspended platform body, the roller is movably connected to the guide rope, and the guide rope is movably connected to the guide wheel.

[0014] Preferably, there are two sets of clamps, which are fixedly connected by interlocking locking bolts. The clamps are interference-fitted with the tower of the wind turbine, thereby fixing the two ends of the guide rope.

[0015] Preferably, the two ends of the limiting rope are fixedly connected to the frame, and the limiting rope is movably connected to the outer wall of the wind turbine tower. The limiting rope limits the basket body so that the basket body is always in close contact with the outer wall of the tower.

[0016] Preferably, a fixing plate is fixedly connected to the bottom end face of the suspended platform body, and a pulley is rotatably connected to the inner wall of the fixing plate. The pulley is movably connected to the outer wall of the wind turbine tower.

[0017] Compared with the prior art, this utility model provides a basket guide structure for wind turbine generator maintenance, which has the following beneficial effects:

[0018] 1. This hoisting basket guide structure for wind turbine maintenance, through the setting of guide components, ensures that the outer wall of the hoisting basket body fits against the outer wall of the tower, reducing gaps and sway space, resulting in more stable operation. At the same time, the arc-shaped design brings the distance between the worker and the tower closer, which is beneficial for operations such as surface crack inspection, coating repair, and bolt tightening. The arc-shaped fit design can also automatically guide the hoisting basket's direction. The guide rope is always taut and has a clear path during the hoisting basket's lifting and lowering process, preventing the hoisting basket body from swaying or deviating due to the guide rope's movement, ensuring the verticality and stability of the lifting and lowering process. The limit rope, as a lateral tensioning device, provides a stable traction effect, ensuring that the hoisting basket body fits tightly against the curved surface of the tower and limiting its horizontal deviation range.

[0019] 2. The guide structure of the hoisting basket used for wind turbine maintenance uses pulleys to ensure that the hoisting basket body and the tower have rolling friction during the lifting process. The coefficient of friction is much smaller than that of sliding friction, which can significantly reduce wear, protect the paint, cables, markings and other adhesion layers on the tower surface, and reduce the running resistance of the hoisting basket. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the main structure of the suspended platform of this utility model;

[0024] Figure 5 This utility model Figure 4 Schematic diagram of the structure of region A in the middle;

[0025] Figure 6 This is a schematic diagram of the clamp structure of this utility model.

[0026] In the diagram: 1. Suspended platform body; 2. Guide assembly; 201. Bracket; 202. Guide wheel; 203. Winch; 204. Traction rope; 205. Fixing block; 206. Frame; 207. Roller; 208. Clamp; 209. Guide rope; 210. Limiting rope; 3. Locking bolt; 4. Fixing plate; 5. Pulley. Detailed Implementation

[0027] like Figures 1-6 As shown, this utility model provides a technical solution: a basket guide structure for wind turbine generator maintenance, including a basket body 1, and a guide component 2 is provided above the basket body 1. The guide component 2 includes a bracket 201, a guide wheel 202, a winch 203, a traction rope 204, a fixing block 205, a frame 206, a roller 207, a clamp 208, a guide rope 209, and a limiting rope 210.

[0028] In one embodiment of this utility model, a bracket 201 is fixedly connected to the top of a wind turbine generator. A guide wheel 202 is rotatably connected to the outer wall of the bracket 201. A winch 203 is fixedly connected to the side wall of the bracket 201. A traction rope 204 is wound around the side wall of the winch 203. One end of the traction rope 204 is fixedly connected to the winding roller of the winch 203. The traction rope 204 is movably connected to the guide wheel 202. A fixing block 205 is fixedly connected to the end of the traction rope 204 away from the winch 203. The fixing block 205 is fixedly connected to the inner wall of the basket body 1. The winch 203 includes a connecting frame fixedly connected to the outer wall of the bracket 201. A drive motor is fixedly connected to the side wall of the connecting frame. A winding roller is fixedly connected to the output end of the drive motor. The winding roller is rotatably connected to the inner wall of the connecting frame.

[0029] The frame 206 is fixedly connected to the outer wall of the suspended basket body 1. The inner wall of the frame 206 is rotatably connected to the roller 207. The roller 207 is movably connected to the guide rope 209, and the guide rope 209 is movably connected to the guide wheel 202.

[0030] The top end face of the clamp 208 is fixedly connected to the guide rope 209. There are two sets of clamps 208. The two sets of clamps 208 are fixedly connected by the plug-in locking bolts 3. The clamp 208 is interference-fitted with the tower of the wind turbine, thereby fixing the two ends of the guide rope 209.

[0031] The two ends of the limiting rope 210 are fixedly connected to the frame 206. The limiting rope 210 is fixedly connected to the outer wall of the frame 206. The limiting rope 210 is movably connected to the outer wall of the wind turbine tower. The limiting rope 210 limits the basket body 1 so that the basket body 1 is always in close contact with the outer wall of the tower.

[0032] Driven by a motor, the take-up roller rotates, releasing or tightening the traction rope 204, allowing the suspended platform body 1 to rise or fall. The side of the suspended platform body 1 closest to the outer wall of the tower is arc-shaped, making the outer wall of the suspended platform body 1 fit against the outer wall of the tower, reducing gaps and sway space, and making operation more stable. At the same time, the arc-shaped design brings the distance between the worker and the tower closer, which is beneficial for operations such as surface crack inspection, coating repair, and bolt tightening. When the suspended platform body 1 rotates slightly off course, the arc-shaped fitting design can also automatically correct the direction of the suspended platform, improving the stability of the suspended platform body 1, improving the accuracy of operation, and avoiding deviations in operations such as spraying and grinding caused by the swing of the suspended platform body 1.

[0033] The clamp 208 is fixedly connected to the outer wall of the tower by locking bolt 3. The guide rope 209 guides the rise or fall of the suspended platform body 1, so that the guide rope 209 is always taut and has a clear path during the lifting and lowering of the suspended platform body 1. This prevents the suspended platform body 1 from swaying or deviating due to the guide rope 209 during lifting and lowering, ensuring the verticality and stability of the lifting and lowering process, reducing the left and right swaying of the suspended platform body 1. The suspended platform body 1 always runs along the guide rope 209 when lifting and lowering vertically, which greatly reduces the risk of left and right swaying or collision with the tower and improves the safety of high-altitude operations.

[0034] The limiting rope 210, as a lateral tensioning device, provides stable traction, ensuring that the suspended platform body 1 is in close contact with the curved surface of the tower, limiting its horizontal displacement range, improving the trajectory stability of the suspended platform body 1, and preventing structural swaying, tilting, loss of control, and other phenomena. The suspended platform body 1 is always close to the tower, which helps workers to approach the work surface to perform operations such as inspection, grinding, spraying, and fastening. The limiting rope 210 ensures that the suspended platform body 1 maintains a constant contact distance with the tower wall, providing a more stable operating platform and improving the overall work quality.

[0035] In addition, a fixing plate 4 is fixedly connected to the bottom end face of the suspended platform body 1. A pulley 5 is rotatably connected to the inner wall of the fixing plate 4. The pulley 5 is movably connected to the outer wall of the wind turbine tower. After the pulley 5 is installed, the suspended platform body 1 and the tower will have rolling friction during the lifting process. Its friction coefficient is much smaller than that of sliding friction, which can significantly reduce wear, protect the paint, cables, markings and other adhering layers on the tower surface, reduce the running resistance of the suspended platform, and reduce the burden on the drive system.

[0036] In this utility model, during use, the motor drives the winding roller to rotate, releasing or tightening the traction rope 204, thereby raising or lowering the suspended platform body 1. The side of the suspended platform body 1 closest to the outer wall of the tower is arc-shaped, so that the outer wall of the suspended platform body 1 fits against the outer wall of the tower, reducing gaps and swaying space, making the operation more stable. At the same time, the arc design brings the distance between the worker and the tower closer. The locking bolt 3 fixes the clamp 208 to the outer wall of the tower. The guide rope 209 guides the raising or lowering of the suspended platform body 1, ensuring that the guide rope 209 is always taut and has a clear path during the raising and lowering of the suspended platform body 1, preventing the suspended platform body 1 from swaying or deviating due to the guide rope 209. The limiting rope 210, as a lateral tensioning device, provides a stable traction effect, ensuring that the suspended platform body 1 fits tightly against the curved surface of the tower, limiting its horizontal displacement range.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A basket guide structure for wind turbine generator maintenance, comprising a basket body (1), characterized in that: A guide assembly (2) is provided above the suspended basket body (1), and the guide assembly (2) includes: A bracket (201) is rotatably connected to a guide wheel (202) on its outer wall, and a winch (203) is fixedly connected to the side wall of the bracket (201). A traction rope (204) is wound around the side wall of the winch (203). The frame (206) has rollers (207) rotatably connected to its inner wall. A clamp (208) is fixedly connected to a guide rope (209) on its top end face. A limiting rope (210) is fixedly connected to the outer wall of the frame (206).

2. The basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: The bracket (201) is fixedly connected to the top of the wind turbine. One end of the traction rope (204) is fixedly connected to the winding roller of the winch (203). The traction rope (204) is movably connected to the guide wheel (202). A fixing block (205) is fixedly connected to the end of the traction rope (204) away from the winch (203). The fixing block (205) is fixedly connected to the inner wall of the basket body (1).

3. The basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: The winch (203) includes a connecting frame fixedly connected to the outer wall of the bracket (201), a drive motor fixedly connected to the side wall of the connecting frame, a take-up roller fixedly connected to the output end of the drive motor, and the take-up roller rotatably connected to the inner wall of the connecting frame.

4. The basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: The frame (206) is fixedly connected to the outer wall of the suspended basket body (1), the roller (207) is movably connected to the guide rope (209), and the guide rope (209) is movably connected to the guide wheel (202).

5. The basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: The number of clamps (208) is set in two sets, and the two sets of clamps (208) are fixedly connected by plug-in locking bolts (3). The clamps (208) are interference fit with the tower of the wind turbine.

6. The basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: The two ends of the limiting rope (210) are fixedly connected to the frame (206), and the limiting rope (210) is movably connected to the outer wall of the wind turbine tower.

7. A basket guide structure for wind turbine generator maintenance according to claim 1, characterized in that: A fixing plate (4) is fixedly connected to the bottom end face of the suspended basket body (1), and a pulley (5) is rotatably connected to the inner wall of the fixing plate (4). The pulley (5) is movably connected to the outer wall of the wind turbine tower.

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