Blade tip clamping device based on wind power generation overhaul

Abstract

The utility model discloses a blade tip clamping device based on wind power generation maintenance, relates to the technical field of wind power generation maintenance equipment, and aims to solve the technical problem that the current clamping device has a poor blade tip clamping effect, the blade tip clamping device comprises a fixed bracket, and mounting frames are arranged on two sides in the fixed bracket in a sliding manner. According to the wind turbine blade tip clamping device, the clamping frame, the jacking rod, the conduction frame, the second electric hydraulic push rod, the positioning toothed plate and the matching toothed plate are designed, so that when a blade tip of a wind turbine blade is clamped, the clamping frame can be pushed to move towards the blade tip through the first electric hydraulic push rod on the fixing support; at the moment, the circular jacking blocks of the jacking rods on the clamping frame can make contact with different local areas of the surface of the blade tip through rubber pads, the jacking rods can slide to different degrees, and then the jacking rods can be combined to form a shape matched with the surface of the blade tip.

Description

Technical Field

[0001] This utility model relates to the field of wind power maintenance equipment technology, and more specifically, to a blade tip clamping device for wind power maintenance. Background Technology

[0002] As a key device for converting wind energy into electrical energy, the tips of wind turbine blades are easily damaged by natural environmental factors (such as strong winds and dust) and mechanical stress during long-term operation. At this time, it is necessary to inspect and repair the blade tips. In order to ensure the safety and stability of the inspection, the blade tips need to be fixed, which requires the use of clamping devices.

[0003] Currently, clamping devices mainly use a clamping frame with soft pads to clamp and fix the blade tip. Although this clamping method can achieve the effect of fixing the blade tip, because the blade tip is usually an irregular swept-back shape, and the clamping frame is difficult to adapt to the shape of the blade tip, the clamping force of the clamping frame on different areas of the blade tip will be different during the clamping process. As a result, if the clamping force is too small, it will cause unstable clamping, and if the clamping force is too large, it will cause excessive stress on the local area of ​​the blade tip, resulting in damage or even destruction. In view of this, we propose a blade tip clamping device based on wind power generation maintenance. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a blade tip clamping device based on wind power generation maintenance, so as to solve the technical problem that the current clamping device has a poor blade tip clamping effect.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a blade tip clamping device for wind power maintenance, including a fixed bracket, mounting frames slidably arranged on both sides inside the fixed bracket, a first electro-hydraulic push rod arranged in the center of both sides of the fixed bracket, the piston end of the first electro-hydraulic push rod connected to the mounting frame, symmetrical clamping frames arranged on opposite sides of the two sets of mounting frames, several sets of top holding rods slidably arranged on opposite sides of the clamping frames, and the top holding rods are arranged in a rectangular array, a circular top block is arranged at one end of the top holding rod, and a rubber pad is arranged on the circular top block, a transmission frame slidably arranged inside the clamping frame, a second electro-hydraulic push rod symmetrically arranged on the top of the clamping frame, the piston end of the second electro-hydraulic push rod connected to the transmission frame, a mating tooth plate arranged on the top of the top holding rod, and a positioning tooth plate corresponding to the mating tooth plate arranged on the transmission frame;

[0006] The mating toothed plate is composed of a first toothed plate and a second toothed plate. The positioning toothed plate includes a mounting plate, a third toothed plate, a spring, and a fourth toothed plate. The third toothed plate is arranged on one side of the bottom of the mounting plate, and a slot is opened on the other side of the bottom of the mounting plate. The fourth toothed plate is arranged at the slot by the spring. The third toothed plate corresponds to the first toothed plate, and the fourth toothed plate corresponds to the second toothed plate. The teeth of the first and fourth toothed plates are inclined to face backward, and the teeth of the second and third toothed plates are inclined to face forward.

[0007] This invention, through its designed clamping frame, top holding rods, transmission frame, second electro-hydraulic push rod, positioning toothed plate, and mating toothed plate, allows for the clamping of wind turbine blade tips. When clamping the blade tip, the first electro-hydraulic push rod on the fixed bracket pushes the clamping frame towards the blade tip. At this time, the circular top blocks of several sets of top holding rods on the clamping frame contact different areas of the blade tip surface through rubber pads, and the top holding rods slide to varying degrees. Then, the several sets of top holding rods combine to form a shape that matches the blade tip surface. The second electro-hydraulic push rod then lowers the transmission frame, and the positioning toothed plate on the transmission frame engages with the mating toothed plate on the corresponding top holding rod, thus fixing the top holding rod. Then, the first electro-hydraulic push rod pushes the shaped top holding rod on the clamping frame again to hold the blade tip. This ensures that the clamping force of each set of top holding rods on the blade tip is the same, achieving appropriate clamping and fixing of the blade tip. This avoids unstable clamping due to insufficient clamping force or damage to the blade tip due to excessive clamping force. Localized damage or even destruction may occur. This utility model's mating toothed plate, through a first toothed plate and a second toothed plate, with a third and fourth toothed plate arranged on the positioning toothed plate, is designed to prevent such damage. The first and third toothed plates are symmetrically arranged, as are the second and fourth toothed plates. The teeth of the first and fourth toothed plates are tilted backward, while the teeth of the second and third toothed plates are tilted forward. Under normal conditions, the first and third toothed plates are separated, and the fourth toothed plate is located within the second toothed plate. During the backward sliding displacement of the top-holding rod, the second toothed plate applies an upward thrust to the fourth toothed plate. Then, with the spring's cooperation, the fourth toothed plate performs a reciprocating lifting and lowering motion. Simultaneously, the fourth toothed plate also applies a downward force to the second toothed plate, thus ensuring the stable and orderly sliding displacement of the top-holding rod. This effectively prevents excessive backward sliding displacement of the top-holding rod, which could lead to significant errors in the shape formed by the combination of several sets of top-holding rods compared to the blade tip surface shape. Therefore, it further ensures that the shape formed by the combination of several sets of top-holding rods after displacement closely matches the blade tip shape.

[0008] Preferably, the top two ends of the fourth toothed plate are provided with limiting blocks, and the top two ends of the slot are provided with limiting sleeves symmetrical to the limiting blocks, and the limiting blocks and limiting sleeves are inserted into each other.

[0009] Preferably, the mounting frame includes an X-shaped frame, with limiting rods arranged at the four corners of the X-shaped frame. The limiting rods are arranged on the clamping frame and pass through the fixed bracket. A mounting plate is arranged in the center of the X-shaped frame, and the mounting plate is connected to the piston end of the first electro-hydraulic push rod.

[0010] Preferably, the surface of the clamping frame is provided with a circular hole corresponding to the top holding rod, and limit strips are arranged on both sides inside the circular hole. Limit grooves are provided on both sides of the top holding rod, and the limit strips are located in the limit grooves. A limit disc is arranged on the end of the top holding rod facing away from the circular top block.

[0011] Preferably, the transmission frame includes a top plate, which is connected to the piston end of the second electro-hydraulic push rod. Vertical rods are arranged at the four corners of the bottom of the top plate, and several sets of horizontal rods are arranged between the two sets of vertical rods on both sides of the bottom of the transmission frame. The horizontal rods are connected to the mounting plate.

[0012] Preferably, the upper and lower ends of the vertical rod are fitted with mounting sleeves, which are arranged on the clamping frame.

[0013] Preferably, the top holding rod has an open ball groove at one end facing the circular top block, a ball is movably arranged inside the open ball groove, and a connecting rod is arranged on the ball, and the connecting rod is connected to the circular top block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through its designed clamping frame, top holding rod, transmission frame, second electro-hydraulic push rod, positioning toothed plate, and mating toothed plate, allows for the clamping of wind turbine blade tips. When clamping the blade tip, the first electro-hydraulic push rod on the fixed bracket pushes the clamping frame towards the blade tip. At this time, the circular top blocks of several sets of top holding rods on the clamping frame contact different areas of the blade tip surface via rubber pads, and the top holding rods slide to varying degrees. Then, the several sets of top holding rods combine to form a shape that matches the blade tip surface. Simultaneously, the second electro-hydraulic push rod drives the transmission frame to descend, and the positioning toothed plate on the transmission frame then engages with the corresponding toothed plate. The toothed plate on the top holding rod engages with the top holding rod to fix it in place. Then, the first electric hydraulic push rod pushes the shaped top holding rod on the clamping frame to hold the blade tip. This ensures that the clamping force of each set of top holding rods on the blade tip is the same, thus achieving appropriate clamping and fixing of the blade tip. This avoids situations where the blade tip is unstable due to insufficient clamping force or damaged or even destroyed due to excessive clamping force. This solves the technical problem of poor blade tip clamping effect in current clamping devices. Therefore, this utility model has the advantage of better blade tip clamping effect.

[0016] 2. The mating toothed plate of this utility model consists of a first toothed plate and a second toothed plate. A third toothed plate and a fourth toothed plate are arranged on the positioning toothed plate. The first toothed plate and the third toothed plate are arranged symmetrically, as are the second toothed plate and the fourth toothed plate. The teeth of the first toothed plate and the fourth toothed plate are inclined backward, while the teeth of the second toothed plate and the third toothed plate are inclined forward. Under normal conditions, the first toothed plate and the third toothed plate are separated, and the fourth toothed plate is located inside the second toothed plate. At this time, during the backward sliding displacement of the top holding rod, the second toothed plate will apply an upward thrust to the fourth toothed plate. Then, with the cooperation of the spring, the fourth toothed plate will perform reciprocating lifting and lowering motion. At this time, the fourth toothed plate will also apply a downward force to the second toothed plate in the opposite direction. This allows the top holding rod to slide stably and orderly, effectively avoiding the situation where the backward sliding displacement of the top holding rod is too large, causing a large error between the shape formed by the combination of several sets of top holding rods and the shape of the blade tip surface. This further ensures that the shape formed by the combination of several sets of top holding rods after displacement can fit the shape of the blade tip.

[0017] 3. The front end of the top holding rod of this utility model is provided with an open ball groove, in which a ball is movably arranged. The ball is then connected to the circular top block through a connecting rod. Therefore, when the rubber pad on the circular top block at the front end of the top holding rod contacts the blade tip, the circular top block can rotate in all directions with the cooperation of the open ball groove, the ball, and the connecting rod. Thus, the circular top block can rotate adaptively according to the surface of the blade tip, thereby enabling the circular top block on the top holding rod to more closely and securely hold the blade tip, further improving the clamping effect on the blade tip. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the clamping frame and the top holding rod of this utility model;

[0021] Figure 4 This is a schematic diagram of the clamping frame structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the mounting structure of the top support rod and the transmission frame of this utility model;

[0023] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the top support rod structure of this utility model;

[0025] Figure 8This is a schematic diagram of the positioning toothed plate structure of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Fixed bracket; 2. Mounting bracket; 201. X-shaped bracket; 202. Limiting rod; 203. Mounting plate; 3. First electro-hydraulic push rod; 4. Clamping bracket; 401. Round hole; 402. Limiting strip; 5. Top holding rod; 501. Circular top block; 502. Rubber pad; 503. Limiting groove; 504. Limiting disc; 505. Open ball groove; 506. Ball; 507. Connecting rod; 6. Transmission frame; 601. Top plate; 602. Vertical rod; 603. Horizontal rod; 604. Mounting sleeve; 7. Second electro-hydraulic push rod; 8. Positioning toothed plate; 801. Mounting plate; 802. Third toothed plate; 803. Groove; 804. Spring; 805. Fourth toothed plate; 806. Limiting block; 807. Limiting sleeve; 9. Mating toothed plate; 901. First toothed plate; 902. Second toothed plate. Detailed Implementation

[0028] like Figures 1 to 8 As shown, this utility model relates to a blade tip clamping device for wind power maintenance, including a fixed bracket 1, mounting frames 2 slidably arranged on both sides inside the fixed bracket 1, a first electro-hydraulic push rod 3 arranged in the center of both sides of the fixed bracket 1, the piston end of the first electro-hydraulic push rod 3 connected to the mounting frame 2, symmetrical clamping frames 4 arranged on opposite sides of the two sets of mounting frames 2, several sets of top holding rods 5 slidably arranged on opposite sides of the clamping frames 4, and the top holding rods 5 arranged in a rectangular array, a circular top block 501 arranged at one end of the top holding rod 5, and a rubber pad 502 arranged on the circular top block 501, a transmission frame 6 slidably arranged inside the clamping frame 4, a second electro-hydraulic push rod 7 symmetrically arranged on the top of the clamping frame 4, the piston end of the second electro-hydraulic push rod 7 connected to the transmission frame 6, a mating tooth plate 9 arranged on the top of the top holding rod 5, and a positioning tooth plate 8 corresponding to the mating tooth plate 9 arranged on the transmission frame 6;

[0029] When clamping the tip of the wind turbine blade, the clamping frame 4 can be moved towards the blade tip by the first electro-hydraulic push rod 3 on the fixed bracket 1. At this time, the circular top blocks 501 of several sets of top holding rods 5 on the clamping frame 4 will contact different local areas of the blade tip surface through the rubber pads 502, and the top holding rods 5 will slide to different degrees. Then, several sets of top holding rods 5 will combine to form a shape that matches the blade tip surface. At this time, the transmission frame 6 will be lowered by the second electro-hydraulic push rod 7. Then, the positioning tooth plate 8 on the transmission frame 6 will engage with the matching tooth plate 9 on the corresponding top holding rod 5, thereby fixing the top holding rod 5. Then, the first electro-hydraulic push rod 3 will push the shaped top holding rod 5 on the clamping frame 4 to hold the blade tip. At this time, it can be ensured that the clamping force of each set of top holding rods 5 on the blade tip is the same, that is, the blade tip can be clamped and fixed with appropriate force, avoiding the situation that the blade tip is unstable due to insufficient clamping force or that the blade tip is damaged or even destroyed due to excessive clamping force.

[0030] Specifically, the mounting frame 2 includes an X-shaped frame 201, with limit rods 202 arranged at the four corners of the X-shaped frame 201. The limit rods 202 are arranged on the clamping frame 4 and pass through the fixed bracket 1. A mounting plate 203 is arranged in the center of the X-shaped frame 201, and the mounting plate 203 is connected to the piston end of the first electro-hydraulic push rod 3. The X-shaped frame 201 and the mounting plate 203 facilitate the stable pushing of the clamping frame 4 in conjunction with the first electro-hydraulic push rod 3. The limit rods 202 play a limiting role, ensuring that the clamping frame 4 can slide stably.

[0031] Furthermore, the surface of the clamping frame 4 is provided with a circular hole 401 corresponding to the top holding rod 5. Limiting strips 402 are arranged on both sides inside the circular hole 401. Limiting grooves 503 are provided on both sides of the top holding rod 5, and the limiting strips 402 are located in the limiting grooves 503. A limiting disc 504 is arranged on the end of the top holding rod 5 facing away from the circular top block 501. The circular hole 401 facilitates the insertion and installation of the top holding rod 5. There is an opening above the circular hole 401 that matches the mating toothed plate 9. The limiting strips 402 cooperate with the limiting grooves 503 to achieve a limiting effect and prevent the top holding rod 5 from rotating. The limiting disc 504 also has a limiting effect and prevents the top holding rod 5 from falling off.

[0032] Furthermore, the transmission frame 6 includes a top plate 601, which is connected to the piston end of the second electro-hydraulic push rod 7. Vertical rods 602 are arranged at the four corners of the bottom of the top plate 601. Several sets of horizontal rods 603 are arranged between the two sets of vertical rods 602 on both sides of the bottom of the transmission frame 6. The horizontal rods 603 are connected to the mounting plate 801. Mounting sleeves 604 are fitted on the upper and lower ends of the vertical rods 602. The mounting sleeves 604 are arranged on the clamping frame 4. With the cooperation of the mounting sleeves 604, the transmission frame 6 can be raised and lowered to a certain extent within the clamping frame 4. Then, the transmission frame 6 drives the positioning tooth plate 8 to be raised and lowered through the horizontal rods 603, so as to achieve the engagement of the positioning tooth plate 8 with the mating tooth plate 9.

[0033] In an embodiment of this utility model, the mating toothed plate 9 is composed of a first toothed plate 901 and a second toothed plate 902, and the positioning toothed plate 8 includes a mounting plate 801, a third toothed plate 802, a spring 804 and a fourth toothed plate 805. The third toothed plate 802 is arranged on one side of the bottom of the mounting plate 801, and a slot 803 is opened on the other side of the bottom of the mounting plate 801. The fourth toothed plate 805 is arranged at the slot 803 by the spring 804. The third toothed plate 802 corresponds to the first toothed plate 901, and the fourth toothed plate 805 corresponds to the second toothed plate 902. The tooth openings of the first toothed plate 901 and the fourth toothed plate 805 are inclined to face backward, and the tooth openings of the second toothed plate 902 and the third toothed plate 802 are inclined to face forward.

[0034] Under normal conditions, the first toothed plate 901 is separated from the third toothed plate 802, and the fourth toothed plate 805 is located inside the second toothed plate 902. At this time, during the backward sliding displacement of the top holding rod 5, the second toothed plate 902 will apply an upward pushing force to the fourth toothed plate 805. Then, with the cooperation of the spring 804, the fourth toothed plate 805 will perform reciprocating lifting and lowering movements. At this time, the fourth toothed plate 805 will also apply a downward force to the second toothed plate 902 in the opposite direction. This allows the top holding rod 5 to slide stably and orderly, which can effectively avoid the top holding rod 5 sliding too far backward, causing a large error in the shape formed by the combination of several sets of top holding rods 5 with the shape of the blade tip surface. This can further ensure that the shape formed by the combination of several sets of top holding rods 5 after displacement can fit the shape of the blade tip.

[0035] Specifically, limit blocks 806 are arranged at both ends of the top of the fourth toothed plate 805, and limit sleeves 807 symmetrical to the limit blocks 806 are arranged at both ends of the top of the slot 803, and the limit blocks 806 and the limit sleeves 807 are inserted into each other; the limit blocks 806 and the limit sleeves 807 cooperate to mainly play a limiting role and ensure that the fourth toothed plate 805 can be raised and lowered vertically.

[0036] In an embodiment of this utility model, the top holding rod 5 has an open ball groove 505 at one end facing the circular top block 501, a ball 506 is movably arranged inside the open ball groove 505, and a connecting rod 507 is arranged on the ball 506, and the connecting rod 507 is connected to the circular top block 501.

[0037] When the rubber pad 502 on the circular top block 501 at the front end of the top holding rod 5 contacts the blade tip, the circular top block 501 can rotate in all directions with the cooperation of the open ball groove 505, the ball 506 and the connecting rod 507. Therefore, the circular top block 501 can rotate adaptively according to the blade tip surface, so that the circular top block 501 on the top holding rod 5 can fit more closely to secure the blade tip, further improving the clamping effect on the blade tip.

[0038] Working Principle: This embodiment provides a blade tip clamping device for wind power generation maintenance. First, when clamping the blade tip of the wind turbine blade, the clamping frame 4 can be moved towards the blade tip by the first electro-hydraulic push rod 3 on the fixed bracket 1. At this time, the circular top blocks 501 of several sets of top holding rods 5 on the clamping frame 4 will contact different local areas of the blade tip surface through the rubber pads 502, and the top holding rods 5 will slide to different degrees. Then, the several sets of top holding rods 5 will combine to form a shape that matches the blade tip surface. At this time, the second electro-hydraulic push rod 7 drives the transmission... As the frame 6 descends, the positioning toothed plate 8 on the transmission frame 6 engages with the mating toothed plate 9 on the corresponding top holding rod 5, thereby fixing the top holding rod 5. Then, the first electric hydraulic push rod 3 pushes the shaped top holding rod 5 on the clamping frame 4 to hold the blade tip. At this time, it can be ensured that the clamping force of each set of top holding rods 5 on the blade tip is the same, that is, the blade tip can be clamped and fixed with appropriate force, avoiding the situation that the blade tip is not clamped stably due to insufficient clamping force or that the blade tip is damaged or even destroyed due to excessive clamping force.

[0039] Secondly, under normal conditions, the first toothed plate 901 is separated from the third toothed plate 802, and the fourth toothed plate 805 is located inside the second toothed plate 902. At this time, during the backward sliding displacement of the top holding rod 5, the second toothed plate 902 will apply an upward pushing force to the fourth toothed plate 805. Then, with the cooperation of the spring 804, the fourth toothed plate 805 will perform reciprocating lifting and lowering movements. At this time, the fourth toothed plate 805 will also apply a downward force to the second toothed plate 902 in the opposite direction. This allows the top holding rod 5 to slide stably and orderly, which can effectively avoid the top holding rod 5 sliding too far backward, causing a large error in the shape formed by the combination of several sets of top holding rods 5 with the shape of the blade tip surface. This can further ensure that the shape formed by the combination of several sets of top holding rods 5 after displacement can fit the shape of the blade tip.

[0040] Finally, when the rubber pad 502 on the circular top block 501 at the front end of the top holding rod 5 contacts the blade tip, the circular top block 501 can rotate in all directions with the cooperation of the open ball groove 505, the ball 506 and the connecting rod 507. Therefore, the circular top block 501 can rotate adaptively according to the blade tip surface, so that the circular top block 501 on the top holding rod 5 can fit more closely to secure the blade tip, further improving the clamping effect on the blade tip.

[0041] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A blade tip holding device based on wind power generation maintenance, characterized by, The device includes a fixed bracket (1), with mounting brackets (2) slidably arranged on both sides inside the fixed bracket (1). A first electro-hydraulic push rod (3) is arranged in the center of both sides of the fixed bracket (1). The piston end of the first electro-hydraulic push rod (3) is connected to the mounting bracket (2). Symmetrical clamping brackets (4) are arranged on opposite sides of the two sets of mounting brackets (2). Several sets of top holding rods (5) are slidably arranged on opposite sides of the clamping brackets (4), and the top holding rods (5) are arranged in a rectangular array. A circular top block (501) is arranged at one end of the top holding rod (5), and a rubber pad (502) is arranged on the circular top block (501). A transmission frame (6) is slidably arranged inside the clamping bracket (4). A second electro-hydraulic push rod (7) is symmetrically arranged on the top of the clamping bracket (4). The piston end of the second electro-hydraulic push rod (7) is connected to the transmission frame (6). A mating tooth plate (9) is arranged on the top of the top holding rod (5), and a positioning tooth plate (8) corresponding to the mating tooth plate (9) is arranged on the transmission frame (6). The mating toothed plate (9) is composed of a first toothed plate (901) and a second toothed plate (902). The positioning toothed plate (8) includes a mounting plate (801), a third toothed plate (802), a spring (804), and a fourth toothed plate (805). The third toothed plate (802) is arranged on one side of the bottom of the mounting plate (801), and a slot (803) is opened on the other side of the bottom of the mounting plate (801). The fourth toothed plate (805) is arranged at the slot (803) by the spring (804). The third toothed plate (802) corresponds to the first toothed plate (901), and the fourth toothed plate (805) corresponds to the second toothed plate (902). The teeth of the first toothed plate (901) and the fourth toothed plate (805) are inclined to face backward, and the teeth of the second toothed plate (902) and the third toothed plate (802) are inclined to face forward.

2. A blade tip clamping device based on wind power generation maintenance according to claim 1, characterized in that, Limiting blocks (806) are arranged at both ends of the top of the fourth toothed plate (805), and limiting sleeves (807) symmetrical to the limiting blocks (806) are arranged at both ends of the top of the slot (803), and the limiting blocks (806) and the limiting sleeves (807) are inserted into each other.

3. A blade tip clamping device based on wind power generation maintenance according to claim 1, characterized in that, The mounting frame (2) includes an X-shaped frame (201), with limit rods (202) arranged at the four corners of the X-shaped frame (201). The limit rods (202) are arranged on the clamping frame (4) and pass through the fixed bracket (1). A mounting plate (203) is arranged in the center of the X-shaped frame (201), and the mounting plate (203) is connected to the piston end of the first electric hydraulic push rod (3).

4. The blade tip clamping device based on wind power generation maintenance according to claim 1, characterized in that, The clamping frame (4) has a circular hole (401) corresponding to the top holding rod (5) on its surface. Limiting strips (402) are arranged on both sides inside the circular hole (401). Limiting grooves (503) are opened on both sides of the top holding rod (5), and the limiting strips (402) are located in the limiting grooves (503). A limiting disc (504) is arranged on one end of the top holding rod (5) facing away from the circular top block (501).

5. The blade tip clamping device based on wind power generation maintenance according to claim 1, characterized in that, The transmission frame (6) includes a top plate (601), which is connected to the piston end of the second electric hydraulic push rod (7). Vertical rods (602) are arranged at the four corners of the bottom of the top plate (601). Several sets of horizontal rods (603) are arranged between the two sets of vertical rods (602) on both sides of the bottom of the transmission frame (6). The horizontal rods (603) are connected to the mounting plate (801).

6. A blade tip clamping device based on wind power generation maintenance according to claim 5, characterized in that, The vertical rod (602) is fitted with mounting sleeves (604) at both the upper and lower ends, and the mounting sleeves (604) are arranged on the clamping frame (4).

7. The blade tip holding device based on wind power generation maintenance according to claim 1, characterized in that, The top support rod (5) has an open ball groove (505) at one end facing the circular top block (501). A ball (506) is movably arranged inside the open ball groove (505), and a connecting rod (507) is arranged on the ball (506), and the connecting rod (507) is connected to the circular top block (501).

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