A maintenance platform for a wind turbine blade

Abstract

The utility model provides a kind of maintenance platform for wind power blade, including mainboard, stable frame and bolt, the stable frame top is fixed by bolt reinforcing plate, both sides limit plate top surface is equipped with U type clamping groove, cable is fixed in clamping groove by unhooking, and limit plate top auxiliary plate bottom surface is equipped with guide boss;The both sides of the stable frame are equipped with limit plate, one side of the stable frame is equipped with electric appliance box, the top of the mainboard is equipped with inner layer plate, the top of the mainboard is equipped with additional block. Through the cooperation of stable frame, reinforcing plate and limit plate, the device can be better reinforced and protected during use, increasing the stability of the device itself, avoiding positional deviation, facilitating the friction winding of cable during lifting, greatly reducing the left and right swing, achieving multi-directional support and fixation of the device, making the whole more integrated.

Description

Technical Field

[0001] This utility model belongs to the field of wind power technology, specifically relating to a maintenance platform for wind turbine blades. Background Technology

[0002] Suspended platforms are commonly used for the maintenance of wind turbine blades and are also known as wind turbine blade support platforms. A suspended platform is suspended in the air and equipped with guardrails on all sides. It is used to support workers, tools, equipment and work materials and is a device for workers to carry out high-altitude work.

[0003] Chinese Patent Publication No. CN217535388U discloses a maintenance platform for wind turbine blades, relating to the field of wind turbine blade technology. The maintenance platform includes a mounting frame, a support platform, and a guardrail assembly. The support platform is mounted on the mounting frame and provides support for maintenance personnel. The support platform is U-shaped with an opening in the middle to create an operating space for the wind turbine blades to pass through and for maintenance personnel to repair. The guardrail assembly is mounted on the support platform and provides protection on both sides of the support platform. The mounting frame is equipped with an adjustment component for adjusting the size of the opening on the support platform. This wind turbine blade maintenance platform allows for adjustment of the operating space on the support platform, facilitating adaptive adjustments to the wind turbine blades and simplifying wind turbine blade maintenance.

[0004] In actual use, the following problems exist: the overall device cannot provide better multi-directional limiting support, resulting in the need to improve the stability of the device, and the phenomenon of positional deviation is prone to occur after long-term use; the overall device is not convenient for lifting and lowering adjustment, which makes the device unsafe during operation, and no protective treatment for the parts is achieved. Utility Model Content

[0005] The main objective of this invention is to provide a maintenance platform for wind turbine blades, which aims to effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A maintenance platform for wind turbine blades includes a main board, a stabilizing frame, and bolts. The top of the stabilizing frame is fixed with a reinforcing plate by bolts. The top surface of the limit plates on both sides is provided with U-shaped slots. The rope is fixed in the slots by shackles. The bottom surface of the auxiliary plate on the top of the limit plate is provided with a guide boss.

[0008] The stabilizing frame has limiting plates on both sides, an electrical box on one side of the stabilizing frame, an inner layer plate on the top of the main board, and an additional block on the top of the main board.

[0009] While adopting the above technical solutions, this utility model may also adopt or combine the following technical solutions:

[0010] As a preferred technical solution of this utility model: the top of the motherboard is provided with a spring tube, and the bottom of the spring tube is provided with a protective plate.

[0011] As a preferred technical solution of this utility model: the inside of the stabilizing frame is provided with a side pressure plate, and the top of the stabilizing frame is provided with a threaded ring.

[0012] As a preferred technical solution of this utility model: the top of the reinforcing plate is provided with a soft rubber pad, and the top of the reinforcing plate is provided with bolts.

[0013] As a preferred technical solution of this utility model: the top of the limiting plate is provided with an auxiliary plate, a rotatable support rod is inserted through the through hole of the auxiliary plate, a semi-circular rope groove is provided on the outer periphery of the support rod, and the rope is wound around the groove to form a guide structure.

[0014] As a preferred technical solution of this utility model: a handle is provided on one side of the electrical box, and a viewing frame is provided on the other side of the electrical box.

[0015] As a preferred technical solution of this utility model: the inner layer plate is provided with a sleeve ring inside, and the sleeve ring is used to snap a round rod inside.

[0016] As a preferred technical solution of this utility model: the top of the additional block is connected to the through pipe, and the top additional block of the main board is equipped with a single variable frequency motor through the through pipe. The motor drives the double winch drum through a gear synchronous box.

[0017] This utility model provides a maintenance platform for wind turbine blades, which has the following beneficial effects: Through the coordinated arrangement of a stabilizing frame, reinforcing plate, and limiting plate, the device can be better reinforced and protected during use, increasing its stability and preventing positional shifts. It also facilitates cable friction and entanglement during lifting and lowering, greatly reducing lateral swaying and achieving multi-directional support and fixation, making the overall structure more integrated and ensuring the device can adapt to more areas. Furthermore, the coordinated arrangement of the main board and inner layer plate allows for better buffering and adjustment during use, ensuring greater stability during descent. Internal limiting connections prevent wear and tear on parts from prolonged use, save on existing materials, reduce overall load, and increase the device's safety. Attached Figure Description

[0018] Figure 1 A schematic diagram of the maintenance platform for wind turbine blades provided by this utility model;

[0019] Figure 2 A schematic diagram for stabilizing the frame;

[0020] Figure 3 This is a schematic diagram of the inner layer plate;

[0021] Figure 4 This is a schematic diagram of the motherboard;

[0022] Figure 5 This is a schematic diagram of the limiting plate;

[0023] Figure 6 This is a schematic diagram of the additional block;

[0024] In the diagram: 1-Main board; 2-Stabilizing frame; 3-Reinforcing plate; 4-Limiting plate; 5-Electrical box; 6-Inner plate; 7-Additional block; 8-Spring tube; 9-Protective plate; 10-Side pressure plate; 11-Threaded ring; 12-Soft rubber pad; 13-Bolt; 14-Auxiliary plate; 15-Support rod; 16-Handle; 17-Perspective frame; 18-Socket ring; 19-Round rod; 20-Through pipe; 21-Motor. Detailed Implementation

[0025] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-6 As shown, a maintenance platform for wind turbine blades includes a main board 1, a stabilizing frame 2 and bolts 13. The top of the stabilizing frame 2 is fixed with a reinforcing plate 3 by bolts 13. The top surface of the limit plates 4 on both sides is provided with U-shaped slots. The rope is fixed in the slots by shackles. The bottom surface of the auxiliary plate 14 at the top of the limit plate is provided with a guide boss.

[0027] The stabilizing frame 2 has limiting plates 4 on both sides for easy cable stretching, an electrical box 5 for maintaining the conveying on one side, an inner plate 6 for preventing loosening on the top of the main board 1, and an additional block 7 for support on the top of the main board 1.

[0028] The stabilizing frame 2 is an inverted trapezoid.

[0029] The top of the main board 1 is provided with a spring tube 8 for cushioning, and the bottom of the spring tube 8 is provided with a protective plate 9 for increasing friction.

[0030] The inside of the stabilizing frame 2 is provided with a side pressure plate 10 to prevent slippage, and a threaded ring 11 is opened on the top of the stabilizing frame 2.

[0031] The top of the reinforcing plate 3 is provided with a soft rubber pad 12 for increasing flexibility, and the top of the reinforcing plate 3 is provided with a bolt 13.

[0032] The top of the limiting plate 4 is provided with an auxiliary plate 14 for easy docking. A rotatable support rod 15 is inserted through the through hole of the auxiliary plate 14. A semi-circular cable groove is provided on the outer periphery of the support rod, and the cable is wound around the groove to form a guide structure.

[0033] One side of the electrical box 5 is provided with a handle 16 for easy manual adjustment, and the other side of the electrical box 5 is provided with a viewing frame 17.

[0034] The inner layer plate 6 has a sleeve ring 18 inside to prevent shaking, and the sleeve ring 18 is engaged with a round rod 19 inside.

[0035] The top of the additional block 7 is snapped into the through pipe 20 to prevent gaps. The top of the main board 1, the additional block 7, is connected to a single variable frequency motor 21 through the through pipe 20. The motor drives the double winch drum through the gear synchronization box to achieve synchronous winding and unwinding of the two ropes.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, in order to facilitate the device to play a better cushioning role during the fall and increase the practicality of the device itself, a main board 1 and an additional block 7 are set up.

[0037] The main board 1 is fixedly connected to the top with a stabilizing frame 2. A triangular side pressure plate 10, 100mm on each side and 6mm thick, is welded to the inner side of the stabilizing frame 2, forming a 60° angle with the main board 1 to enhance anti-tipping capability. The inner layer plate 6 has a sleeve ring 18 with an inner diameter of φ30mm, and a clearance fit tolerance H7 / g6 with the round rod 19, limiting the horizontal displacement of the main board to ≤2mm. An additional block 7 for support is fixedly connected to the top of the main board 1. A spring tube 8 for cushioning is fixedly installed on the top of the main board 1. A protective plate 9 for increasing friction is fixedly installed at the bottom of the spring tube 8. A through pipe 20 to prevent gaps is snapped onto the top of the additional block 7. A motor 21 for driving operation is snapped onto the top of the through pipe 20. Therefore, the spring tube 8 is designed to better alleviate the pressure at the top of the device, ensuring greater stability during descent. The protective plate 9 is designed to increase friction at the bottom of the device, making it more durable. The through pipe 20 is designed to facilitate better internal connection of parts. The motor 21 is a single 3kW variable frequency motor vertically installed inside the through pipe 20 at the top of the auxiliary block 7. The output shaft is connected to the gear synchronization box in the electrical box 5 via a flexible coupling. The synchronization box drives two winch drums with a diameter of φ150mm through a double gear shaft, enabling synchronous winding and unwinding of the two ropes. The tension difference is ≤5%, which meets the GB / T3811 standard. The length difference between the two ropes is adjusted to ΔL≤300mm and the support rod angle θ1-θ2≤30°. Vector synthesis is used to achieve a maximum horizontal displacement of ±1.5m for the platform. The electrical box 5 has a built-in PLC controller and tilt sensor to monitor the platform tilt angle in real time. When the tilt angle is >2°, the rope fine adjustment is automatically triggered.

[0038] like Figure 1 , Figure 2 and Figure 5As shown, in order to provide external protection for the device, ensure that the device is more secure, and prevent positional displacement, a device stabilizing frame 2, a reinforcing plate 3, and a limiting plate 4 are provided.

[0039] The main board 1 of the stabilizing frame 2 is fixedly connected to the top. A reinforcing plate 3 to prevent tilting is fixedly installed on the top of the stabilizing frame 2. Limiting plates 4 for easy cable stretching are fixedly connected to both sides of the stabilizing frame 2. Side pressure plates 10 to prevent slippage are fixedly connected inside the stabilizing frame 2. A threaded ring 11 for easy insertion is provided on the top of the stabilizing frame 2. A soft rubber pad 12 to increase flexibility is fixedly connected to the top of the reinforcing plate 3. A bolt 13 for easy disassembly is fixedly installed on the top of the reinforcing plate 3. An auxiliary plate 14 for easy docking is fixedly connected to the top of the limiting plate 4. A support rod 15 for rotational adjustment is snapped into the interior of the auxiliary plate 14. Therefore, the top surface of the limiting plates 4 on both sides has a U-shaped groove with a width of 25mm and a depth of 15mm. The end of the cable is fixed in the groove using an M12 shackle. An L-shaped auxiliary plate 14 extends from the top of the limiting plate, and its bottom... The device features a 45° guide boss that matches the groove size of the pre-embedded lifting ring at the top of the wind turbine tower for quick docking, with a docking time of ≤2 minutes. The side pressure plate 10 is designed to reduce internal component wear and increase the device's practicality. The threaded ring 11 is designed to work with the bolt 13 for bottom installation and fixation, preventing positional misalignment. The soft rubber pad 12 is designed to increase the flexibility of the device's bottom and reduce wear between components. The auxiliary plate 14 is designed to better limit the bottom connection and facilitate internal through-hole docking. A rotatable support rod 15 is inserted through the through hole of the auxiliary plate 14. The support rod has a semi-circular rope groove with a radius of 10mm on its outer circumference, and the rope is wound around the groove to form a guide pulley. The support rod has hexagonal adjustment heads at both ends, which can be rotated 0°~90° with a wrench. After adjustment, the angle is fixed by a φ4mm positioning pin to change the horizontal component of the rope force.

[0040] like Figure 3 As shown, in order to facilitate the positioning and docking of internal parts of the device and make the whole device more integrated, an inner layer plate 6 is provided.

[0041] The top of the main board 1 is fixedly connected to an inner layer plate 6 to prevent loosening. Inside the inner layer plate 6, a socket ring 18 is fixedly installed to prevent shaking. Inside the socket ring 18, a round rod 19 for through insertion is engaged. Therefore, the socket ring 18 is designed to better position the device and prevent tilting, thereby increasing the stability of the bottom docking. The round rod 19 is designed to enable the device to perform internal through docking and prevent the device from shaking.

[0042] In this invention, the working steps of the device are as follows:

[0043] Specifically, the aforementioned maintenance platform for wind turbine blades is implemented in the following manner:

[0044] Align the guide boss of the auxiliary plate 14 with the groove of the pre-embedded lifting ring at the top of the wind turbine tower, and push the platform to make the boss embed into the groove;

[0045] Rotate the support rod 15 degrees to the designed angle using a wrench, then insert the locating pin to secure it.

[0046] Start motor 21 and adjust the ropes synchronously using the control buttons on the electrical box 5 panel to raise the platform to the working height;

[0047] If horizontal movement is required, the target displacement is input through the controller, and the system automatically calculates the difference in length between the two ropes and performs the adjustment.

[0048] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A maintenance platform for wind turbine blades, comprising a main board (1), a stabilizing frame (2), and bolts (13), characterized in that: The top of the stabilizing frame (2) is fixed with a reinforcing plate (3) by bolts (13), and the top surface of the limiting plates (4) on both sides is provided with a U-shaped slot. The rope is fixed in the slot by a shackle, and the bottom surface of the auxiliary plate (14) at the top of the limiting plate is provided with a guide boss. The stabilizing frame (2) has limiting plates (4) on both sides, an electrical box (5) on one side of the stabilizing frame (2), an inner layer plate (6) on the top of the main board (1), and an additional block (7) on the top of the main board (1).

2. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The motherboard (1) has a spring tube (8) at the top and a protective plate (9) at the bottom.

3. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The stabilizer (2) has a side pressure plate (10) inside, and a threaded ring (11) is opened on the top of the stabilizer (2).

4. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The top of the reinforcing plate (3) is provided with a soft rubber pad (12), and the top of the reinforcing plate (3) is provided with a bolt (13).

5. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The top of the limiting plate (4) is provided with an auxiliary plate (14), and a rotatable support rod (15) is inserted through the through hole of the auxiliary plate (14). A semi-circular rope groove is provided on the outer periphery of the support rod, and the rope is inserted around the groove to form a guide structure.

6. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The electrical box (5) has a handle (16) on one side and a viewing frame (17) on the other side.

7. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The inner layer plate (6) is provided with a sleeve ring (18) inside, and the sleeve ring (18) is used to snap a round rod (19).

8. The maintenance platform for wind turbine blades according to claim 1, characterized in that: The top of the additional block (7) is connected to the through pipe (20). The top of the main board (1) is connected to the additional block (7) and a single variable frequency motor (21) is installed through the through pipe (20). The motor drives the double winch drum through the gear synchronization box.

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