A rotor blade handling device for the construction of onshore wind farms and a positioning assembly therefor

Abstract

The application discloses a rotary blade hoisting device for land wind farm construction and a positioning assembly thereof, and relates to the field of hoisting device structures.The rotary blade hoisting device comprises a stand column, a horizontal rod is arranged on the top side of the stand column, a horizontal sliding block is slidably arranged on the horizontal rod, a vertical rod is arranged on one side of the horizontal sliding block, and a vertical sliding block is arranged on the vertical rod.In the application, the wind wheel rotary blade body is placed on fixed and movable profiling blocks, the levelness of the wind wheel rotary blade body is adjusted through a height adjusting unit, the wind wheel rotary blade body is fixedly pressed through two upper profiling pressing blocks, the U-shaped frame is pulled through a pulling unit, the wind wheel rotary blade body is lifted along the stand column to a position in line with the wind wheel shaft, the vertical sliding block is slid along the vertical rod to align the wind wheel rotary blade body with the wind wheel shaft in the vertical direction, the horizontal sliding block is slid along the horizontal rod to make the wind wheel rotary blade body close to one side of the wind wheel shaft, and the wind wheel rotary blade body is quickly connected with the wind wheel shaft.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment structures, and particularly to a rotary blade hoisting equipment and its positioning components used in the construction of onshore wind farms. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as wind turbine blades, generator (including the device), directional control (tail fin), tower, speed limiting safety mechanism, and energy storage device. In the traditional wind turbine installation process, the base and tower are first vertically stacked and fixed, the generator, directional control and wind turbine shaft are installed on top, and finally the wind turbine blades are hoisted to a high altitude and connected to the wind turbine shaft one by one.

[0003] In existing technologies, during the process of hoisting wind turbine blades to a high altitude and connecting them with the wind turbine shaft, the mounting surface of the wind turbine shaft is usually adjusted to be perpendicular to the ground before the wind turbine blades are horizontally hoisted and connected to the mounting surface. However, in actual operation, the hoisting equipment is usually simple in structure, and it is difficult to adjust the state of the wind turbine blades to an ideal state, making the connection with the wind turbine shaft difficult and causing certain inconveniences to the installation of the wind turbine blades. Therefore, we disclose a blade hoisting equipment and its positioning components for the construction of onshore wind farms to meet people's needs. Summary of the Invention

[0004] The purpose of this application is to provide a rotor hoisting device and its positioning components for the construction of onshore wind farms, in order to solve the problem mentioned in the background art that, in the process of hoisting the wind turbine rotor blades to a high altitude and connecting them with the wind turbine shaft, the installation surface of the wind turbine shaft is usually adjusted to be perpendicular to the ground, and then the wind turbine rotor blades are horizontally hoisted and connected with the installation surface. However, in actual operation, the hoisting equipment is usually simple in structure, and it is difficult to adjust the state of the wind turbine rotor blades to an ideal state, which makes the connection with the wind turbine shaft difficult and brings certain inconveniences to the installation of the wind turbine rotor blades.

[0005] To achieve the above objectives, this application provides the following technical solution: a blade hoisting device for onshore wind farm construction, comprising a column, a transverse rod installed on the top side of the column, a transverse slider slidably installed on the transverse rod, a longitudinal rod installed on one side of the transverse slider, a longitudinal slider installed on the longitudinal rod, a sliding drive unit installed on one side of both the transverse slider and the longitudinal slider, and a hoisting mechanism installed on the bottom side of the longitudinal slider;

[0006] The hoisting mechanism consists of two U-shaped frames, with multiple connecting rods installed between them to form a U-shaped lifting frame structure. A fixed contour block is installed on the top side of the U-shaped bottom of one of the U-shaped frames, and a movable contour block is installed on the top side of the U-shaped bottom of the other U-shaped frame via a height adjustment unit. Fixed blocks are installed on the inner sidewalls of both U-shaped frames near the top. An upper contour block is fixedly installed on the top side of the fixed block via locking bolts. The upper contour block matches the fixed or movable contour block. A traction unit is installed between the two U-shaped frames and the column.

[0007] Preferably, the traction unit includes a first traction rope and a second traction rope. Inverted V-shaped fixing frames are installed at the top of the two U-shaped frames on the same side. A first guide wheel is installed at the center of the bottom side of the longitudinal slider. Second guide wheels are installed on both sides of the first guide wheel on the bottom side of the longitudinal slider. One end of the first traction rope is installed on the top side of one of the inverted V-shaped fixing frames, and the other end passes through the first guide wheel and extends to the bottom of the column. One end of the second traction rope is installed on the top side of the other inverted V-shaped fixing frame, and the other end passes through both second guide wheels and extends to the bottom of the column. A winding unit is installed at one end of both the first and second traction ropes.

[0008] Preferably, the winding unit includes a first winding wheel and a second winding wheel. Two first motors are installed on one side of the column. The first winding wheel and the second winding wheel are sleeved on the output shafts of the corresponding first motors. One end of the first traction rope is installed on the first winding wheel, and one end of the second traction rope is installed on the second winding wheel.

[0009] Preferably, the sliding drive unit includes a gear, and a second motor is mounted on one side of both the longitudinal slider and the transverse slider. The gear is sleeved on the output shaft of the second motor. A clearance groove is provided on the top side of both the transverse rod and the longitudinal rod. A rack is installed in the clearance groove. A clearance hole is provided on the top side of both the longitudinal slider and the transverse slider. One side of the gear passes through the clearance hole and meshes with the corresponding rack.

[0010] Preferably, both ends of the transverse rod and the longitudinal rod are equipped with anti-detachment limiting blocks at the avoidance groove positions, and one side of the anti-detachment limiting block matches one side of the corresponding longitudinal slider or transverse slider.

[0011] Preferably, the height adjustment unit includes an adjustment screw. Two sliding holes and one threaded hole are provided on one side of the U-shaped frame. The adjustment screw is screwed into the threaded hole. The top end of the adjustment screw is rotatably connected to the bottom side of the movable contour block. Two guide posts are installed on the bottom side of the movable contour block. The guide posts slide and match the corresponding sliding holes. An operating handle is installed at the bottom end of the adjustment screw.

[0012] Preferably, a support column is installed on the bottom side of both U-shaped frames, and the length of the support column is greater than the length of the adjusting screw and the guide column.

[0013] Preferably, a rubber pad is installed on one side of the fixed contour block, the movable contour block, and the upper contour pressing block.

[0014] Preferably, the blade hoisting equipment for onshore wind farm construction further includes a positioning component, which includes a limiting plate, an extension rod installed on one side of the U-shaped frame, a sliding sleeve installed at one end of the extension rod, a sliding rod slidably installed inside the sliding sleeve, and the bottom end of the limiting plate installed at the top end of the sliding rod.

[0015] Preferably, a buffer pad is installed on the side of the limiting plate away from the U-shaped frame.

[0016] In summary, the technical effects and advantages of this invention are as follows:

[0017] 1. In this invention, the wind turbine blade body is placed on a fixed and movable contour block using a U-shaped frame. The height of the movable contour block is adjusted by a height adjustment unit to create a height difference between the tops of the fixed and movable contour blocks, thereby adjusting the levelness of the wind turbine blade body. The wind turbine blade body is then pressed and fixed by two upper contour blocks, thus fixing it onto the U-shaped frame. The U-shaped frame is then pulled by a traction unit to raise the wind turbine blade body along the column to a position flush with the wind turbine shaft. The longitudinal slider is slid along the longitudinal rod to align the wind turbine blade body longitudinally with the wind turbine shaft. The transverse slider is then slid along the transverse rod to move the wind turbine blade body closer to one side of the wind turbine shaft, allowing the wind turbine blade body to quickly connect with the wind turbine shaft.

[0018] 2. In this invention, by setting the first winding wheel and the second winding wheel, the first traction rope and the second traction rope can be controlled separately. When they rotate, the U-shaped frame and the wind turbine blade body are raised and lowered as a whole. When one of the first winding wheel and the second winding wheel rotates and the other does not rotate, the lengths of the first traction rope and the second traction rope are different, which causes the U-shaped frame to tilt, thereby causing the wind turbine blade body to rotate to a certain extent. This allows for fine adjustment of the wind turbine blade body, making it easier to align with the mounting surface of the wind turbine shaft.

[0019] 3. In this invention, by setting a limiting plate, when placing the wind turbine blade body, the mounting end of the wind turbine blade body is pressed against one side of the limiting plate. At this time, when the wind turbine blade body is placed on the fixed contour block and the movable contour block, the two ends of the wind turbine blade body are balanced and the wind turbine blade body is in a horizontal state, which facilitates the quick placement of the wind turbine blade body. After the wind turbine blade body is lifted to a suitable height, the slide bar is slid down to separate the limiting plate from one side of the wind turbine blade body, so that the wind turbine blade body can be installed. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a partial three-dimensional structural diagram of the first winding wheel region in this invention;

[0023] Figure 3 This is a partial three-dimensional structural diagram of the gear region in this invention;

[0024] Figure 4 This is a schematic diagram of a partial three-dimensional structure of the longitudinal slider region in this invention;

[0025] Figure 5 This is a schematic diagram of a partial cross-sectional view of the U-shaped frame area in this invention;

[0026] Figure 6 This is a schematic diagram of a partial cross-sectional view of the adjusting screw area in this invention;

[0027] Figure 7 This is a partial three-dimensional structural diagram of the limiting plate area in this invention.

[0028] In the diagram: 1. Column; 2. Horizontal bar; 3. Longitudinal bar; 4. Longitudinal slider; 5. Horizontal slider; 6. First winding wheel; 7. U-shaped frame; 8. First traction rope; 9. Second traction rope; 10. Wind turbine blade body; 11. Second winding wheel; 12. First motor; 13. Second motor; 14. Gear; 15. Clearance hole; 16. Anti-detachment limit block; 17. Rack; 18. Second guide wheel; 19. First guide wheel; 20. Inverted V-shaped fixing frame; 21. Support column; 22. Fixed contour block; 23. Movable contour block; 24. Adjusting screw; 25. Fixing block; 26. Upper contour pressure block; 27. Locking bolt; 28. Connecting rod; 29. ​​Guide column; 30. Rubber pad; 31. Operating handle; 32. Extension rod; 33. Sliding sleeve; 34. Sliding rod; 35. Limiting plate; 36. Buffer pad. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Reference Figure 1-7 The rotary blade hoisting equipment and its positioning components for onshore wind farm construction shown include a column 1, a transverse bar 2 installed on the top side of the column 1, a transverse slider 5 slidably installed on the transverse bar 2, a longitudinal bar 3 installed on one side of the transverse slider 5, a longitudinal slider 4 installed on the longitudinal bar 3, a sliding drive unit installed on one side of both the transverse slider 5 and the longitudinal slider 4, and a hoisting mechanism installed on the bottom side of the longitudinal slider 4. The wind turbine rotor blade body 10 is fixed on the hoisting mechanism. The hoisting mechanism raises the column 1 to a position flush with the wind turbine shaft. The longitudinal slider 4 slides along the longitudinal bar 3 to align the wind turbine rotor blade body 10 longitudinally with the wind turbine shaft. Then, the transverse slider 5 slides along the transverse bar 2 to move the wind turbine rotor blade body 10 closer to one side of the wind turbine shaft, so that the wind turbine rotor blade body 10 and the wind turbine shaft can be quickly connected.

[0031] The hoisting mechanism consists of two U-shaped frames 7, with multiple connecting rods 28 installed between them to form a U-shaped lifting frame structure. A fixed contour block 22 is installed on the top side of the U-shaped bottom of one U-shaped frame 7, while a movable contour block 23 is installed on the top side of the U-shaped bottom of the other U-shaped frame 7 via a height adjustment unit. Fixed blocks 25 are installed on the inner sidewalls of both U-shaped frames near their top positions. An upper contour block 26 is fixedly installed on the top side of each fixed block 25 via locking bolts 27. The upper contour block 26 matches either the fixed contour block 22 or the movable contour block 23. The two U-shaped frames... A traction unit is installed between the U-shaped frame 7 and the column 1. The wind turbine blade body 10 is placed on the fixed contour block 22 and the movable contour block 23 through the U-shaped frame 7. The height of the movable contour block 23 is adjusted by the height adjustment unit so that the tops of the fixed contour block 22 and the movable contour block 23 form a height difference, so as to adjust the level of the wind turbine blade body 10. Then, the wind turbine blade body 10 is pressed and fixed by two upper contour pressing blocks 26, and the wind turbine blade body 10 is fixedly installed on the U-shaped frame 7. The traction unit pulls the U-shaped frame 7 to raise the wind turbine blade body 10.

[0032] like Figure 1 As shown, the traction unit includes a first traction rope 8 and a second traction rope 9. Two U-shaped frames 7 have inverted V-shaped fixing frames 20 mounted on their top ends on the same side. A first guide wheel 19 is mounted on the middle of the bottom side of the longitudinal slider 4. Second guide wheels 18 are mounted on both sides of the first guide wheel 19 on the bottom side of the longitudinal slider 4. One end of the first traction rope 8 is mounted on the top side of one of the inverted V-shaped fixing frames 20, and the other end passes through the first guide wheel 19 and extends to the bottom end of the column 1. One end of the second traction rope 9 is mounted on the other inverted V-shaped fixing frame 20. On the top side of the fixed frame 20, the other end passes through two second guide wheels 18 and extends to the bottom of the column 1. One end of the first traction rope 8 and the second traction rope 9 is equipped with a winding unit. Through the setting of the winding unit, the winding unit can wind up the first traction rope 8 and the second traction rope 9. During the winding process, the U-shaped frame 7 and the wind turbine blade body 10 are raised. Through the setting of the inverted V-shaped fixed frame 20, the center of gravity of the U-shaped frame 7 and the wind turbine blade body 10 can be lowered, which is conducive to maintaining the stability of the wind turbine blade body 10 during the raising process.

[0033] like Figure 2As shown, the winding unit includes a first winding wheel 6 and a second winding wheel 11. Two first motors 12 are installed on one side of the column 1. The first winding wheel 6 and the second winding wheel 11 are sleeved on the output shafts of the corresponding first motors 12. One end of the first traction rope 8 is installed on the first winding wheel 6, and one end of the second traction rope 9 is installed on the second winding wheel 11. By setting the first winding wheel 6 and the second winding wheel 11, the first traction rope 8 and the second traction rope 9 can be controlled separately. When they rotate simultaneously, the U-shaped frame 7 and the wind turbine blade body 10 are raised and lowered as a whole. When one of the first winding wheel 6 and the second winding wheel 11 rotates and the other does not rotate, the lengths of the first traction rope 8 and the second traction rope 9 are different, which causes the U-shaped frame 7 to tilt, thereby causing the wind turbine blade body 10 to rotate to a certain extent, so as to fine-tune the wind turbine blade body 10 and make it easier to align with the mounting surface of the wind turbine shaft.

[0034] like Figure 3 As shown, the sliding drive unit includes a gear 14. A second motor 13 is installed on one side of both the longitudinal slider 4 and the transverse slider 5. The gear 14 is sleeved on the output shaft of the second motor 13. A clearance groove is provided on the top side of both the transverse rod 2 and the longitudinal rod 3. A rack 17 is installed in the clearance groove. A clearance hole 15 is provided on the top side of both the longitudinal slider 4 and the transverse slider 5. One side of the gear 14 passes through the corresponding clearance hole 15 and meshes with the corresponding rack 17. The second motor 13 rotates to drive the gear 14 to rotate. Under the meshing action, the gear 14 rolls along the rack 17, thereby driving the longitudinal slider 4 or the transverse slider 5 to slide, thus realizing the driving function.

[0035] like Figure 3 As shown, anti-slip limiting blocks 16 are installed at both ends of the transverse rod 2 and the longitudinal rod 3 at the avoidance groove position. One side of the anti-slip limiting block 16 matches one side of the corresponding longitudinal slider 4 or transverse slider 5. By setting the anti-slip limiting block 16, the longitudinal slider 4 or transverse slider 5 can be limited to slide within a certain range, preventing it from slipping off the transverse rod 2 and the longitudinal rod 3, thus increasing safety.

[0036] like Figure 6 As shown, the height adjustment unit includes an adjustment screw 24. Two sliding holes and one threaded hole are provided on one side of the U-shaped frame 7. The adjustment screw 24 is screwed into the threaded hole. The top end of the adjustment screw 24 is rotatably connected to the bottom side of the movable contour block 23. Two guide posts 29 are installed on the bottom side of the movable contour block 23. The guide posts 29 slide and match the corresponding sliding holes. An operating handle 31 is installed at the bottom end of the adjustment screw 24. By adjusting the adjustment screw 24, the top end of the adjustment screw 24 moves away from or closer to the side of the U-shaped frame 7, thereby causing the movable contour block 23 to move up and down through the guide posts 29, realizing the height adjustment function. The operating handle 31 increases the ease of operation.

[0037] like Figure 6 As shown, support columns 21 are installed on the bottom sides of both U-shaped frames 7. The length of the support column 21 is greater than the length of the adjusting screw 24 and the guide column 29. By setting the support column 21, the bottom ends of the guide column 29 and the adjusting screw 24 can be prevented from hitting the ground and causing damage to the mechanism, thus playing a protective role.

[0038] like Figure 6 As shown, rubber pads 30 are installed on one side of the fixed contour block 22, the movable contour block 23 and the upper contour pressing block 26. By setting the rubber pads 30, the wear on the surface of the wind turbine blade body 10 can be reduced, and the friction between the fixed contour block 22, the movable contour block 23 and the upper contour pressing block 26 and the wind turbine blade body 10 can be increased to enhance the fastening.

[0039] like Figure 7 As shown, the turbine blade hoisting equipment used for onshore wind farm construction also includes a positioning component. The positioning component includes a limiting plate 35. An extension rod 32 is installed on one side of the U-shaped frame 7. A sliding sleeve 33 is installed at one end of the extension rod 32. A sliding rod 34 is slidably installed inside the sliding sleeve 33. The bottom end of the limiting plate 35 is installed at the top end of the sliding rod 34. By setting the limiting plate 35, when placing the turbine blade body 10, the installation end of the turbine blade body 10 is pressed against one side of the limiting plate 35. At this time, when the turbine blade body 10 is placed on the fixed contour block 22 and the movable contour block 23, the two ends of the turbine blade body 10 are balanced and the turbine blade body 10 is in a horizontal state, which facilitates the quick placement of the turbine blade body 10. After the turbine blade body 10 is hoisted to a suitable height, the sliding rod 34 is slid down to separate the limiting plate 35 from one side of the turbine blade body 10, so that the turbine blade body 10 can be installed.

[0040] like Figure 7 As shown, a buffer pad 36 is installed on the side of the limiting plate 35 away from the U-shaped frame 7. With the buffer pad 36, when the wind turbine blade body 10 is lifted to a suitable height and moved to the wind turbine shaft side, the buffer pad 36 can prevent the installation side of the wind turbine blade body 10 from colliding with foreign objects, thus protecting the installation side.

[0041] Working principle of this invention:

[0042] By setting up the U-shaped frame 7, the wind turbine blade body 10 is placed on the fixed contour block 22 and the movable contour block 23. The height of the movable contour block 23 is adjusted by the height adjustment unit to create a height difference between the tops of the fixed contour block 22 and the movable contour block 23, so as to adjust the level of the wind turbine blade body 10. Then, the wind turbine blade body 10 is pressed and fixed by the two upper contour pressing blocks 26, and the wind turbine blade body 10 is fixedly installed on the U-shaped frame 7. The U-shaped frame 7 is pulled by the traction unit to raise the wind turbine blade body 10 along the column 1 to a position flush with the wind turbine shaft. The longitudinal slider 4 is slid along the longitudinal rod 3 to align the wind turbine blade body 10 longitudinally with the wind turbine shaft. Then, the transverse slider 5 is slid along the transverse rod 2 to move the wind turbine blade body 10 closer to one side of the wind turbine shaft, so that the wind turbine blade body 10 and the wind turbine shaft are quickly connected.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A blade hoisting device for onshore wind farm construction, comprising a column (1), characterized in that: A horizontal rod (2) is installed on the top side of the column (1), a horizontal slider (5) is slidably installed on the horizontal rod (2), a longitudinal rod (3) is installed on one side of the horizontal slider (5), a longitudinal slider (4) is installed on the longitudinal rod (3), a sliding drive unit is installed on one side of both the horizontal slider (5) and the longitudinal slider (4), and a hoisting mechanism is installed on the bottom side of the longitudinal slider (4). The hoisting mechanism consists of two U-shaped frames (7). Multiple connecting rods (28) are installed between the two U-shaped frames (7) to form a U-shaped hoisting frame structure. A fixed contour block (22) is installed on the top side of the U-shaped bottom of one of the U-shaped frames (7), and a movable contour block (23) is installed on the top side of the U-shaped bottom of the other U-shaped frame (7) through a height adjustment unit. Fixed blocks (25) are installed on the inner sidewalls of both U-shaped frames (7) near the top. An upper contour block (26) is fixedly installed on the top side of the fixed block (25) through a locking bolt (27). The upper contour block (26) matches the fixed contour block (22) or the movable contour block (23). A traction unit is installed between the two U-shaped frames (7) and the column (1). The traction unit includes a first traction rope (8) and a second traction rope (9). Two U-shaped frames (7) are equipped with inverted V-shaped fixing frames (20) on the top of the same side. A first guide wheel (19) is installed in the middle of the bottom side of the longitudinal slider (4). A second guide wheel (18) is installed on both sides of the first guide wheel (19) on the bottom side of the longitudinal slider (4). One end of the first traction rope (8) is installed on the top side of one of the inverted V-shaped fixing frames (20), and the other end passes through the first guide wheel (19) and extends to the bottom of the column (1). One end of the second traction rope (9) is installed on the top side of the other inverted V-shaped fixing frame (20), and the other end passes through the two second guide wheels (18) in sequence and extends to the bottom of the column (1). A winding unit is installed at one end of the first traction rope (8) and the second traction rope (9).

2. The blade hoisting equipment for onshore wind farm construction according to claim 1, characterized in that: The winding unit includes a first winding wheel (6) and a second winding wheel (11). Two first motors (12) are installed on one side of the column (1). The first winding wheel (6) and the second winding wheel (11) are sleeved on the output shaft of the corresponding first motor (12). One end of the first traction rope (8) is installed on the first winding wheel (6), and one end of the second traction rope (9) is installed on the second winding wheel (11).

3. The blade hoisting equipment for onshore wind farm construction according to claim 1, characterized in that: The sliding drive unit includes a gear (14). A second motor (13) is installed on one side of both the longitudinal slider (4) and the transverse slider (5). The gear (14) is sleeved on the output shaft of the second motor (13). A clearance groove is provided on the top side of both the transverse rod (2) and the longitudinal rod (3). A rack (17) is installed in the clearance groove. A clearance hole (15) is provided on the top side of both the longitudinal slider (4) and the transverse slider (5). One side of the gear (14) passes through the corresponding clearance hole (15) and meshes with the corresponding rack (17).

4. The blade hoisting equipment for onshore wind farm construction according to claim 3, characterized in that: Both ends of the transverse rod (2) and the longitudinal rod (3) are equipped with anti-detachment limiting blocks (16) located at the avoidance groove. One side of the anti-detachment limiting block (16) matches one side of the corresponding longitudinal slider (4) or transverse slider (5).

5. The blade hoisting equipment for onshore wind farm construction according to claim 1, characterized in that: The height adjustment unit includes an adjustment screw (24). Two sliding holes and one threaded hole are provided on one side of the U-shaped frame (7). The adjustment screw (24) is screwed into the threaded hole. The top end of the adjustment screw (24) is rotatably connected to the bottom side of the movable contour block (23). Two guide posts (29) are installed on the bottom side of the movable contour block (23). The guide posts (29) slide and match the corresponding sliding holes. An operating handle (31) is installed at the bottom end of the adjustment screw (24).

6. The blade hoisting equipment for onshore wind farm construction according to claim 5, characterized in that: Both of the U-shaped frames (7) are equipped with support columns (21) on their bottom sides. The length of the support columns (21) is greater than the length of the adjusting screw (24) and the guide column (29).

7. The blade hoisting equipment for onshore wind farm construction according to claim 1, characterized in that: A rubber pad (30) is installed on one side of each of the fixed contour block (22), the movable contour block (23), and the upper contour pressing block (26).

8. The blade hoisting equipment for onshore wind farm construction according to any one of claims 1-7, characterized in that: It also includes a positioning component, which includes a limiting plate (35), an extension rod (32) installed on one side of the U-shaped frame (7), a sliding sleeve (33) installed at one end of the extension rod (32), a sliding rod (34) slidably installed inside the sliding sleeve (33), and the bottom end of the limiting plate (35) installed at the top end of the sliding rod (34).

9. The blade hoisting equipment for onshore wind farm construction according to claim 8, characterized in that: A buffer pad (36) is installed on the side of the limiting plate (35) away from the U-shaped frame (7).

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