A maintenance platform for a wind turbine blade

Abstract

This utility model relates to the technical field of wind turbine blade maintenance facilities, and discloses a maintenance platform for wind turbine blades. The wind turbine blade maintenance platform includes a standing platform, a gantry frame, a lifting assembly, a stabilizing assembly, and a docking assembly. This application utilizes the lifting assembly to achieve rapid lifting and lowering of the platform, eliminating the physical exertion of manual climbing and shortening maintenance time. The stabilizing assembly, rigidly connected to the tower, provides lateral support to the standing platform, resisting swaying caused by wind loads and avoiding the risk of falls during manual climbing. The docking assembly slides against the stabilizing assembly to limit the horizontal displacement of the standing platform, ensuring stability during the vertical lifting and lowering of the platform by the lifting assembly and overcoming swaying defects. The wind turbine blade maintenance platform provided by this application can improve work efficiency during the maintenance phase and enhance the work safety of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine blade maintenance facilities, specifically to a maintenance platform for wind turbine blades. Background Technology

[0002] Wind power, as a clean and renewable energy source, plays a vital role in the global energy structure transformation. Wind turbines capture wind energy through their blades, converting it into mechanical energy to drive generators and produce electricity. As the core component of a wind turbine, the blades' performance directly impacts the unit's power generation efficiency and operational stability. However, because wind turbines are typically installed in harsh environments, at high altitudes, and with complex climates, the blades are constantly exposed to strong winds, dust storms, ultraviolet radiation, rain, snow, and lightning strikes, making them highly susceptible to surface wear, cracks, corrosion, and lightning damage. Statistics show that blade failures account for more than one-third of all wind turbine failures, making them a major cause of unit downtime and economic losses.

[0003] Currently, the maintenance of wind turbine blades mostly relies on manual climbing to the height of the blades. This method is not only highly dangerous but also inefficient. It is physically demanding for maintenance personnel, who are prone to fatigue, which in turn affects the quality and safety of maintenance. In particular, the current high-altitude work equipment has poor stability during use and is prone to shaking, posing a safety risk to maintenance personnel. Utility Model Content

[0004] In view of this, the present invention provides a maintenance platform for wind turbine blades to solve the problems mentioned in the background art.

[0005] In a first aspect, this utility model provides a maintenance platform for wind turbine blades, comprising:

[0006] Lifting assembly, suitable for fixed installation inside the wind turbine nacelle;

[0007] Stabilizing components suitable for detachable mounting on the outer wall of wind turbine towers;

[0008] The gantry frame is suspended and connected to the lifting end of the lifting assembly;

[0009] A standing platform is fixedly connected to the gantry frame;

[0010] A docking assembly is disposed on the outer wall of the standing platform. The docking assembly and the stabilizing assembly are slidably configured. The direction in which the docking assembly and the stabilizing assembly slide relative to each other is parallel to the direction in which the lifting assembly drives the gantry frame.

[0011] Beneficial Effects: This application fixes the lifting assembly to the wind turbine nacelle, the stabilizing assembly is detachably fixed to the outer wall of the wind turbine tower, the gantry is suspended from the lifting assembly, and the standing platform is fixed to the gantry; the docking assembly and the stabilizing assembly slide in cooperation, and the sliding direction is parallel to the lifting movement direction. Specifically, the lifting assembly enables rapid lifting and lowering of the platform, eliminating the physical exertion of manual climbing and shortening maintenance time; the stabilizing assembly is rigidly connected to the tower, providing lateral support for the standing platform, resisting swaying caused by wind loads, and avoiding the risk of falls from manual climbing; the docking assembly slides with the stabilizing assembly to limit the horizontal displacement of the standing platform, ensuring the stability of the standing platform during vertical lifting and lowering by the lifting assembly, and overcoming swaying defects. The wind turbine blade maintenance platform provided by this application can improve the work efficiency during the maintenance phase and enhance the work safety of maintenance personnel.

[0012] In some embodiments, the stabilizing component includes a slide rail, a plurality of arc-shaped strips, and fastening bolts; the slide rail extends parallel to the axial direction of the wind turbine tower, and the plurality of arc-shaped strips are spaced apart from each other and fixedly connected to the side of the slide rail opposite to the docking component.

[0013] The fastening bolts are installed through the arc-shaped strip and are threaded to the outer wall of the wind turbine tower; the radius of curvature of the arc-shaped strip matches the outer diameter of the wind turbine tower.

[0014] Beneficial effects: The stabilizing component includes a slide rail, multiple curved strips, and fastening bolts. The slide rail provides sliding guidance for the docking components, establishing lateral support for the standing platform. The curvature radius of the curved strips matches the outer diameter of the tower to increase the contact area of ​​the structure, dispersing wind load stress. Fastening bolts are used to fix the curved strips to the tower, with multiple bolts connecting multiple curved strips to prevent the slide rails from loosening, ensuring no displacement under extreme wind conditions and improving the stability of the stabilizing component. The curvature of the curved strips can be adjusted according to actual working conditions to adapt to towers of different diameters, expanding the platform's versatility.

[0015] In some embodiments, the stabilizing component includes two symmetrically arranged positioning units, each positioning unit consisting of the slide rail and a plurality of the arc-shaped strips fixed thereon; the docking component slides into contact with the slide rails of the two positioning units respectively.

[0016] Beneficial effects: The stabilizing component includes two symmetrically distributed positioning units, which can establish a symmetrical distribution of double slide rails to counteract the lateral torque transmitted by the docking component and the standing platform, promote structural balance, help prevent the platform from tilting to one side, and enhance the stability of high-altitude operations; the double slide rails constrain the movement trajectory of the standing platform, reduce swaying during lifting and lowering, and improve guiding accuracy.

[0017] In some embodiments, the number of arc-shaped strips on each positioning unit is not less than 5.

[0018] Beneficial effects: A positioning unit has more than 5 arc-shaped strips connected to the slide rail. By increasing the number of arc-shaped strips, the contact area between the stabilizing component and the tower is increased, the stress on the fastening bolts is further dispersed, the load distribution is optimized, local stress concentration is avoided, which leads to tower wall deformation, and the wind vibration resistance of the maintenance platform is improved.

[0019] In some embodiments, the docking component includes:

[0020] The mounting shell is fixedly installed on one side wall of the standing platform;

[0021] A double-ended screw is rotatably disposed within the inner cavity of the mounting housing;

[0022] A pair of insert rods, symmetrically threaded at both ends of the double-ended screw;

[0023] A slider is fixedly disposed at the end of the insert rod away from the double-ended screw, and the slider slides in conjunction with the groove in the slide rail.

[0024] Beneficial effects: The docking assembly includes a mounting shell, a double-ended screw, insert rods, and a slider. The rotation of the double-ended screw drives the movement of a pair of insert rods, causing the sliders on the insert rods to slide into the grooves of the slide rails. Users can adjust the engagement degree between the sliders and the slide rails by rotating the double-ended screw, enabling rapid docking and separation of the platform and the stabilization assembly, saving installation time and improving work efficiency. In addition, the position of the sliders can be finely adjusted through the double-ended screw drive to compensate for track gaps caused by tower manufacturing errors or deformation, ensuring smooth sliding.

[0025] In some embodiments, the docking component further includes:

[0026] The worm gear rotatably passes through the side wall of the mounting housing;

[0027] A turntable is fixed to the extended end of the worm gear;

[0028] A worm gear is fixedly sleeved in the middle of the double-ended screw, and the worm gear meshes with the worm for transmission.

[0029] Beneficial effects: The docking assembly incorporates a worm gear-worm wheel mechanism, with the worm externally connected to a turntable driving a double-ended screw. The self-locking characteristics of the worm gear and worm wheel prevent the screw from reversing due to vibration, creating a self-locking anti-loosening mechanism. This ensures the slider continuously presses against the slide rail, improving the reliability of the maintenance platform during operation. The turntable provides a lever arm, allowing users to easily adjust the docking and separation of the docking assembly and the stabilizing assembly by operating the turntable, reducing operational intensity.

[0030] In some embodiments, the docking assembly further includes at least one ball bearing; the ball bearing is rotatably disposed on the end face of the slider facing the slide rail groove, and the ball bearing makes rolling contact with the slide rail groove.

[0031] Beneficial effects: Ball bearings are installed on the end face of the slider to make rolling contact with the slide groove. The ball bearings convert sliding friction into rolling friction, reducing frictional resistance, making the lifting of the platform smoother, and reducing the energy consumption of the lifting components. In addition, it can also avoid direct wear between the slider and the slide groove, extend the service life of the docking components and stabilizing components, adapt to dusty environments, and reduce wear caused by sand and dust entering the contact surface.

[0032] In some embodiments, the insertion rod and the mounting housing are slidably connected by a keyway to restrict the circumferential rotation of the insertion rod.

[0033] Beneficial effects: By using the keyway to force the insertion rod to move only axially, the jamming caused by the insertion rod rotating along with the screw is avoided, thus achieving precise transmission and improving the reliability of the adjustment and docking components.

[0034] In some embodiments, rollers are provided at the four corners of the bottom surface of the standing platform.

[0035] Beneficial effects: After the maintenance platform is landed on the ground, the rollers make it easy to move the maintenance platform to the storage point or the next work point; this design reduces the difficulty of handling and makes ground movement convenient.

[0036] In some embodiments, the lifting assembly includes:

[0037] The motor is installed inside the wind turbine nacelle;

[0038] A rotating shaft is coaxially connected to the output end of the motor.

[0039] A take-up roller is fixedly sleeved on the outer surface of the rotating shaft;

[0040] A traction rope is wound around the outer surface of the take-up roller;

[0041] A lifting ring is fixedly installed at the traction end of the traction rope, and the lifting ring is detachably connected to the gantry frame.

[0042] Beneficial effects: The motor drives the rotating shaft and take-up roller to raise and lower the traction rope, enabling the lifting ring to lift the gantry and standing platform. The electric-driven lifting is efficient and safe. The motor drive replaces manual pulling, the speed is controllable and labor-saving, which helps to improve maintenance efficiency. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of the maintenance platform for wind turbine blades according to an embodiment of the present utility model;

[0045] Figure 2 This is a schematic diagram of the stabilization component in the wind turbine blade maintenance platform according to an embodiment of the present invention;

[0046] Figure 3 This is an external view of the docking assembly in the wind turbine blade maintenance platform according to an embodiment of the present utility model;

[0047] Figure 4 This is an internal view of the docking assembly in the wind turbine blade maintenance platform of this utility model embodiment.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Standing platform; 2. Gantry frame; 3. Lifting assembly; 301. Motor; 302. Rotating shaft; 303. Winding roller; 304. Traction rope; 305. Lifting ring; 4. Stabilizing assembly; 401. Slide rail; 402. Curved strip; 403. Fastening bolt; 5. Connecting assembly; 501. Mounting housing; 502. Double-ended screw; 503. Insert rod; 504. Worm gear; 505. Turntable; 506. Slider; 507. Ball bearing; 508. Worm wheel. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0051] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0052] According to an embodiment of this utility model, a maintenance platform for wind turbine blades is provided, see [link to relevant documentation]. Figure 1 The maintenance platform includes a standing platform 1, a gantry 2, a lifting assembly 3, a stabilizing assembly 4, and a docking assembly 5.

[0053] In this embodiment, the gantry 2 is suspended and connected to the lifting end of the lifting assembly 3, which is suitable for fixed installation inside the wind turbine nacelle; the stabilizing assembly 4 is suitable for detachable fixing to the outer wall of the wind turbine tower; the docking assembly 5 is disposed on the outer wall of the standing platform 1, and the docking assembly 5 and the stabilizing assembly 4 are slidably configured, with the sliding direction of the docking assembly 5 and the stabilizing assembly 4 being parallel to the movement direction of the lifting assembly 3 driving the gantry 2.

[0054] The maintenance platform provided in this embodiment has the lifting assembly 3 fixed to the wind turbine nacelle, the stabilizing assembly 4 detachably fixed to the outer wall of the wind turbine tower, the gantry 2 suspended from the lifting assembly 3, and the standing platform 1 fixed to the gantry 2; the docking assembly 5 and the stabilizing assembly 4 are slidably engaged, and the sliding direction is parallel to the lifting movement direction.

[0055] Specifically, the lifting assembly 3 enables rapid lifting and lowering of the platform, eliminating the physical exertion of manual climbing and shortening maintenance time; the stabilizing assembly 4 is rigidly connected to the tower, providing lateral support for the standing platform 1, resisting the swaying caused by wind loads, avoiding the risk of falling during manual climbing; the docking assembly 5 slides with the stabilizing assembly 4 to limit the horizontal displacement of the standing platform 1, ensuring the stability of the standing platform 1 when the lifting assembly 3 is used for vertical lifting and lowering, and overcoming the swaying defect.

[0056] The wind turbine blade maintenance platform provided in this embodiment can improve the work efficiency during the maintenance phase and enhance the work safety of maintenance personnel.

[0057] In this embodiment, see Figure 1 The standing platform 1 is fixedly connected to the gantry 2. For example, the standing platform 1 is at the bottom of the gantry 2. The standing platform 1 has a fence side to limit and protect the maintenance personnel inside the standing platform 1.

[0058] In some embodiments, rollers (not shown in the figure) are provided at the four corners of the bottom surface of the standing platform 1. With this design, after the maintenance platform is lowered to the ground, the rollers make it easy to move the maintenance platform to the storage point or the next work point, which helps to reduce the difficulty of handling and facilitates ground movement.

[0059] In some embodiments, see Figure 1 The lifting assembly 3 includes a motor 301, a rotating shaft 302, a take-up roller 303, a traction rope 304, and a lifting ring 305. The motor 301 is installed inside the wind turbine nacelle. The rotating shaft 302 is coaxially connected to the output end of the motor 301. The take-up roller 303 is fixedly sleeved on the outer surface of the rotating shaft 302. The traction rope 304 is wound around the outer surface of the take-up roller 303. The lifting ring 305 is fixedly installed at the traction end of the traction rope 304 and is detachably connected to the gantry frame 2. The motor 301 drives the rotating shaft 302 and the take-up roller 303 to wind and unwind the traction rope 304, causing the lifting ring 305 to lift and lower the gantry frame 2 and the standing platform 1.

[0060] In the specific operation process, the motor 301 runs, driving the rotating shaft 302 to rotate, which in turn drives the take-up roller 303 to rotate, thereby releasing the traction rope 304, so that the end of the traction rope 304 moves to the ground. Then, the hook is connected to the end of the traction rope 304, and the personnel stand inside the standing platform 1. The motor 301 drives the rotating shaft 302 to rotate, which pulls the gantry 2 and the standing platform 1 up, thereby bringing the maintenance personnel to the height of the wind turbine blade.

[0061] The electric-driven lifting system is efficient and safe. The 301 motor drives the lifting mechanism, replacing manual pulling. The speed is controllable and labor-saving, which helps improve maintenance efficiency.

[0062] In some embodiments, see Figure 2 The stabilizing component 4 includes a slide rail 401, multiple arc-shaped bars 402, and fastening bolts 403. The slide rail 401 extends parallel to the axial direction of the wind turbine tower. The multiple arc-shaped bars 402 are spaced apart from each other and fixedly connected to the side of the slide rail 401 opposite to the docking component 5. The fastening bolts 403 pass through the arc-shaped bars 402 and are threaded to the outer wall of the wind turbine tower. The radius of curvature of the arc-shaped bars 402 matches the outer diameter of the wind turbine tower. The fastening bolts 403 can be spaced apart along the circumferential direction of the arc-shaped bars 402.

[0063] The maintenance platform provided in this embodiment includes a stabilizing component 4 comprising a slide rail 401, multiple arc-shaped bars 402, and fastening bolts 403. The slide rail 401 provides sliding guidance for the docking component 5, establishing lateral support for the standing platform 1. The curvature radius of the arc-shaped bars 402 is matched to the outer diameter of the tower to increase the contact area of ​​the structure and disperse wind load stress. The fastening bolts 403 are used to fix the arc-shaped bars 402 to the tower. Multiple fastening bolts 403 connect multiple arc-shaped bars 402, preventing the slide rail 401 from loosening and ensuring no displacement under extreme wind conditions, which is beneficial to improving the stability of the stabilizing component 4. The curvature of the arc-shaped bars 402 is adjusted according to actual working conditions to adapt to towers of different diameters, expanding the versatility of the platform.

[0064] In a further embodiment, see Figure 1 The stabilizing component 4 includes two symmetrically arranged positioning units, each of which consists of a slide rail 401 and multiple arc-shaped strips 402 fixed thereon; the docking component 5 is slidably engaged with the slide rails 401 of the two positioning units respectively.

[0065] The stabilizing component 4 includes two symmetrically distributed positioning units, which can establish a symmetrical distribution of double slide rails to counteract the lateral torque transmitted by the docking component 5 and the standing platform 1, promote structural balance, help prevent the platform from tilting to one side, and enhance the stability of high-altitude operations; the double slide rails constrain the movement trajectory of the standing platform 1, reduce swaying during the lifting process, and improve the guiding accuracy.

[0066] In some embodiments, each positioning unit has at least five arc-shaped strips 402. A positioning unit has a slide rail 401 connected to five or more arc-shaped strips 402. This arrangement increases the number of arc-shaped strips 402, improves the contact area between the stabilizing component 4 and the tower, further disperses the force on the fastening bolts 403, optimizes load distribution, avoids localized stress concentration leading to tower wall deformation, and also helps improve the maintenance platform's resistance to wind vibration.

[0067] In some embodiments, multiple arc-shaped strips 402 connected on the same slide rail 401 are arranged at equal intervals. By setting multiple equally spaced arc-shaped strips 402, the slide rail 401 is stably installed to ensure the stability and motion accuracy of the sliding fit between the stabilizing component 4 and the docking component 5.

[0068] In this embodiment, see Figure 1 The docking component 5 is located on one side of the standing platform 1 near the wind turbine tower.

[0069] In some embodiments, see Figure 3 and Figure 4 The docking assembly 5 includes a mounting shell 501, a double-ended screw 502, a pair of insert rods 503, and a slider 506. The mounting shell 501 is fixedly disposed on one side wall of the standing platform 1. The double-ended screw 502 is rotatably disposed in the inner cavity of the mounting shell 501. The pair of insert rods 503 are symmetrically threaded at both ends of the double-ended screw 502. The slider 506 is fixedly disposed at the end of the insert rod 503 away from the double-ended screw 502. The slider 506 slides in cooperation with the groove in the slide rail 401.

[0070] The maintenance platform provided in this embodiment includes a docking component 5 comprising a mounting shell 501, a double-ended screw 502, insert rods 503, and a slider 506. The rotation of the double-ended screw 502 drives the movement of a pair of insert rods 503, causing the slider 506 on the insert rods 503 to slide and engage with the grooves of the slide rail 401. Users can adjust the engagement degree between the slider 506 and the slide rail 401 by rotating the double-ended screw 502, achieving rapid docking and separation of the platform and the stabilizing component 4, saving installation time and improving work efficiency. Furthermore, the position of the slider 506 can be finely adjusted via the double-ended screw 502 to compensate for track gaps caused by tower manufacturing errors or deformation, ensuring smooth sliding.

[0071] In a further embodiment, see Figure 3and Figure 4 The docking assembly 5 also includes a worm gear 504, a turntable 505, and a worm wheel 508. The worm gear 504 rotatably passes through the side wall of the mounting housing 501, the turntable 505 is fixed to the extended end of the worm gear 504, and the worm wheel 508 is fixedly sleeved on the middle of the double-ended screw 502. The worm wheel 508 and the worm gear 504 are meshed and driven together. The docking assembly 5 adds a worm gear 504-worm wheel 508 mechanism, with the turntable 505 externally connected to the worm gear 504 driving the double-ended screw 502.

[0072] In the specific operation process, by rotating the turntable 505, the worm gear 504 is driven to rotate. The worm gear 504 will drive the worm wheel 508 that meshes with it to rotate, which can control the rotation of the double-headed screw 502. Under the action of its surface threads, the insertion rod 503 can be moved, which can drive the slider 506 to move and lock into the inner wall of the slide rail 401. The slider 506 will slide along the inner wall of the slide rail 401, which plays a limiting role in the lifting process of the standing platform 1.

[0073] The maintenance platform provided in this embodiment prevents the screw from reversing due to vibration by using the self-locking characteristics of the worm gear 508 and worm 504, forming a self-locking anti-loosening mechanism, thereby ensuring that the slider 506 continuously presses against the slide rail 401 and improving the reliability of the maintenance platform during operation. The turntable 505 is provided with a lever arm, and the user can easily adjust the docking and separation between the docking component 5 and the stabilizing component 4 by operating the turntable 505, reducing the intensity of operation.

[0074] In some embodiments, see Figure 3 The docking assembly 5 also includes one or more ball bearings 507; the ball bearings 507 are rotatably disposed on the end face of the slider 506 facing the slide groove of the slide rail 401, and the ball bearings 507 are in rolling contact with the slide groove.

[0075] A ball bearing 507 is provided on the end face of the slider 506 to make rolling contact with the slide groove. The ball bearing 507 converts sliding friction into rolling friction, reduces frictional resistance, makes the lifting of the standing platform 1 smoother, and reduces the energy consumption of the lifting assembly 3. In addition, the rolling friction of the ball bearing 507 can also avoid direct wear between the slider 506 and the slide groove, extend the service life of the docking assembly 5 and the stabilizing assembly 4, adapt to the sandy environment, and reduce the wear caused by sand entering the contact surface.

[0076] In some embodiments, the insertion rod 503 and the mounting housing 501 are slidably connected by a keyway to restrict the circumferential rotation of the insertion rod 503. The keyway forces the insertion rod 503 to move only axially, avoiding jamming caused by the insertion rod 503 rotating with the screw, thus achieving precise transmission and improving the reliability of the adjustment and docking assembly 5.

[0077] The wind turbine blade maintenance platform provided in this embodiment is used as follows:

[0078] When maintenance of wind turbine blades is required, the standing platform 1 is pushed to the wind turbine tower. The lifting assembly 3 is then operated, allowing its end to reach the ground. The lifting assembly 3 is then fixedly connected to the gantry 2. Subsequently, the docking assembly 5 is operated, allowing it to connect with the stabilizing assembly 4. Maintenance personnel stand on the standing platform 1, and the gantry 2 is then pulled upwards by the lifting assembly 3, which in turn moves the standing platform 1 and the maintenance personnel upwards. Ultimately, the maintenance personnel reach the blade height, allowing for maintenance of the wind turbine blades. During the lifting and lowering of the standing platform 1, the stabilizing assembly 4 limits the docking assembly 5, ensuring that the docking assembly 5 moves in a straight line and thus guaranteeing the stable lifting and lowering of the standing platform 1.

[0079] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A maintenance platform for wind turbine blades, characterized in that, include: Lifting assembly (3) is suitable for fixed installation inside the wind turbine nacelle; Stabilizing component (4) is suitable for detachable fixation to the outer wall of the wind turbine tower; The gantry frame (2) is suspended and connected to the lifting end of the lifting assembly (3); A standing platform (1) is fixedly connected to the gantry frame (2); A docking component (5) is disposed on the outer wall of the standing platform (1). The docking component (5) is slidably configured with the stabilizing component (4). The direction in which the docking component (5) slides with the stabilizing component (4) is parallel to the direction of movement of the lifting component (3) driving the gantry (2).

2. The maintenance platform for wind turbine blades according to claim 1, characterized in that, The stabilizing component (4) includes a slide rail (401), multiple arc-shaped bars (402), and fastening bolts (403); the slide rail (401) extends parallel to the axial direction of the wind turbine tower, and the multiple arc-shaped bars (402) are spaced apart from each other and fixedly connected to the side of the slide rail (401) away from the docking component (5). The fastening bolt (403) is provided through the arc-shaped strip (402) and is threaded to the outer wall of the wind turbine tower; the radius of curvature of the arc-shaped strip (402) matches the outer diameter of the wind turbine tower.

3. The maintenance platform for wind turbine blades according to claim 2, characterized in that, The stabilizing component (4) includes two symmetrically arranged positioning units, each of which consists of the slide rail (401) and a plurality of arc-shaped strips (402) fixed thereon; the docking component (5) is slidably engaged with the slide rails (401) of the two positioning units respectively.

4. The maintenance platform for wind turbine blades according to claim 2, characterized in that, The number of the arc-shaped strips (402) on each positioning unit shall not be less than 5.

5. The maintenance platform for wind turbine blades according to claim 2, characterized in that, The docking component (5) includes: Mounting housing (501) is fixedly installed on one side wall of the standing platform (1); A double-ended screw (502) is rotatably disposed within the cavity of the mounting housing (501); A pair of insert rods (503) are symmetrically threaded at both ends of the double-ended screw (502); A slider (506) is fixedly disposed at the end of the insert (503) away from the double-ended screw (502), and the slider (506) slides in conjunction with the groove in the slide rail (401).

6. The maintenance platform for wind turbine blades according to claim 5, characterized in that, The docking component (5) also includes: The worm gear (504) is rotatably mounted through the side wall of the mounting housing (501); Turntable (505) is fixed to the extended end of the worm (504); A worm gear (508) is fixedly sleeved in the middle of the double-ended screw (502), and the worm gear (508) is meshed with the worm (504) for transmission.

7. The maintenance platform for wind turbine blades according to claim 5, characterized in that, The docking assembly (5) further includes at least one ball (507); the ball (507) is rotatably disposed on the end face of the slider (506) facing the groove of the slide rail (401), and the ball (507) makes rolling contact with the groove.

8. The maintenance platform for wind turbine blades according to claim 5, characterized in that, The insertion rod (503) and the mounting housing (501) are slidably connected by a keyway to restrict the circumferential rotation of the insertion rod (503).

9. The maintenance platform for wind turbine blades according to claim 1, characterized in that, The standing platform (1) has rollers at the four corners of its bottom surface.

10. The maintenance platform for wind turbine blades according to any one of claims 1-9, characterized in that, The lifting assembly (3) includes: The motor (301) is installed inside the wind turbine nacelle; A rotating shaft (302) is coaxially connected to the output end of the motor (301); The take-up roller (303) is fixedly sleeved on the outer surface of the rotating shaft (302); A traction rope (304) is wound around the outer surface of the take-up roller (303); A lifting ring (305) is fixedly installed at the traction end of the traction rope (304), and the lifting ring (305) is detachably connected to the gantry frame (2).

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