A wind turbine blade installation device

Abstract

The present invention discloses a wind turbine blade installation device, which relates to the technical field of wind turbines and includes a connecting ring. A fixed frame is fixedly connected to the lower surface of the connecting ring. An angle adjustment mechanism is arranged in the inner cavity of the fixed frame. The angle adjustment mechanism includes a limiting column, which is fixedly connected to the inner wall of the fixed frame. A first rotating sleeve is rotatably connected to the outer surface of the limiting column. A roller is fixedly connected to the side of the first rotating sleeve away from the limiting column. A first cable is sleeved on the outer surface of the roller. Both ends of the first cable are fixedly connected to a support frame. An arc-shaped limiting rod is fixedly connected to the lower surface of the support frame. When the generator blade tilts during the hoisting process, the present invention can support the tilted end of the generator blade to prevent the blade from tilting excessively during the hoisting process, and can adjust the angle of the blade as needed, avoiding the use of manpower or other tools to assist in the deviation correction operation, effectively improving the installation efficiency of the blade.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbines, and specifically to a wind turbine blade installation device. Background Art

[0002] Wind turbine blades are key components in wind power generation systems. They are usually made of high-strength composite materials, such as glass fiber reinforced plastics or carbon fiber reinforced plastics, etc. These materials have the advantages of light weight, high strength, corrosion resistance, etc., and can withstand the impact of strong winds and the test of long-term outdoor environments. The design of wind turbine blades is crucial. Their shapes and sizes are carefully designed to maximize the capture of wind energy. The airfoil design of the blades can optimize the aerodynamic performance and improve the wind energy conversion efficiency. At the same time, the length and diameter of the blades will be reasonably selected according to the power of the wind turbine and the wind resource conditions at the installation site.

[0003] Since wind turbines are mostly installed in high mountains or open seas, affected by complex geographical and meteorological conditions, during the hoisting process of generator blades, if there is a deviation in determining the center of gravity of the hoisted blade or the blade is affected by rising air currents during the hoisting process, the two ends of the blade are prone to losing balance. If not corrected in time, the tilt angle of the blade will become larger and larger, resulting in the inability to align with the bolts on the blade mounting seat even when hoisted to the installation position for subsequent installation and fixing operations. When the tilt angle of the blade is too large and it is lifted again, one end of the blade will touch the ground first. If the tip of the blade touches the ground first, it will damage the coating and structure of the blade surface and affect the performance of the wind turbine. In addition, when fixing different models of generator blades before hoisting, the fixing angle cannot be accurately determined, resulting in the inability to align the upper mounting holes of the blade flange with the upper bolts of the blade mounting seat after hoisting to the installation position. It is necessary to rely on manpower or auxiliary tools to adjust the angle of the blade, which is not only time-consuming and laborious, but also the risk of high-altitude operations is relatively high, and the installation efficiency of generator blades is also greatly restricted. Summary of the Invention

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A wind turbine blade installation device, including a connecting ring, the lower surface of the connecting ring is fixedly connected with a fixed frame, an angle adjustment mechanism is arranged inside the fixed frame, the angle adjustment mechanism includes a limiting column, the limiting column is fixedly connected to the inner wall of the fixed frame, a first rotating sleeve is rotatably connected to the outer surface of the limiting column, a roller is fixedly connected to the side of the first rotating sleeve away from the limiting column, a first cable is sleeved on the outer surface of the roller, both ends of the first cable are fixedly connected with a support frame, and an arc-shaped limiting rod is fixedly connected to the lower surface of the support frame. By setting the angle adjustment mechanism, during the hoisting of the generator blade, the generator blade can rise smoothly, and when the generator blade is blown by the wind, it can achieve a self-balancing effect, thereby keeping the generator blade stable. By setting the limiting column, the first rotating sleeve can be limited, so that the first rotating sleeve can drive the roller to rotate stably on the outer surface of the limiting column. By setting the first cable, a certain deformation can occur, so that when the generator blade at the bottom is tilted, the first cable can slide in the inner cavity of the roller; An arc-shaped limiting rod is provided with a placement mechanism, the placement mechanism includes a placement ring, the placement ring is fixedly connected to the outer surface of the arc-shaped limiting rod, an arc-shaped limiting strip is fixedly connected to the outer surface of the placement ring, a first arc-shaped limiting sleeve is slidably connected to the outer surface of the arc-shaped limiting strip, and a connecting ring is fixedly connected to the outer side of the first arc-shaped limiting sleeve. By setting the placement mechanism, the generator blade to be installed can be placed, and when the generator blade shakes, it can return to its position to keep the generator blade stable. By setting the placement ring, the generator blade can be placed. By setting the arc-shaped limiting strip, it can cooperate with the first arc-shaped limiting sleeve, so that the placement ring and the connecting ring can rotate relatively; A connecting block is fixedly connected to the outer surface of the connecting ring, and an anti-tilting mechanism is fixedly connected to the lower surface of the connecting block.

[0005] Preferably, a circular groove is provided on the circumferential side wall of the roller, an anti-slip gasket is fixedly connected to the inner cavity of the circular groove, the first cable passes through the outer surface of the anti-slip gasket, and the angle adjustment mechanism further includes a fixed rod, the end of the fixed rod is fixedly connected with a reduction motor, the output end of the reduction motor is installed with a rotating rod through a coupling, and the end of the rotating rod is fixedly connected to the side of the roller away from the first rotating sleeve.

[0006] Preferably, the number of the first arc-shaped limiting sleeves is two, and the two first arc-shaped limiting sleeves are symmetrically fixedly connected to the outer side of the connecting ring. An anti-slip pad is fixedly connected to the inner cavity of the placement ring, the number of the anti-slip pads is several, and the several anti-slip pads are evenly distributed.

[0007] Preferably, a strip-shaped hole is formed in the upper surface of the connecting ring, and second arc-shaped limiting sleeves are symmetrically and fixedly connected to the strip-shaped hole formed in the upper surface of the connecting ring. The second arc-shaped limiting sleeves are frictionally adapted to the outer surfaces of the arc-shaped limiting rods.

[0008] Preferably, a placing plate is fixedly connected to the bottom of the outer side of the placing ring. Two second cables are fixedly connected to the lower surface of the support frame. The bottom ends of the two second cables are respectively fixedly connected to the outer side of the placing plate. A clamping mechanism is fixedly connected to the top of the outer side of the placing ring. The clamping mechanism includes a top plate. The top plate is fixedly connected to the top of the outer side of the placing ring. A fixing box penetrates through the upper surface of the top plate.

[0009] Preferably, a threaded ring is fixedly connected to the inner wall of the fixing box. A threaded rod is threadedly connected to the inner cavity of the threaded ring. The bottom end of the threaded rod is rotatably connected to a second rotating sleeve. A clamping plate is fixedly connected to the lower surface of the second rotating sleeve.

[0010] Preferably, the anti-tilting mechanism includes a connecting frame. The connecting frame is fixedly connected to the lower surface of the connecting block. A connecting rod is fixedly connected to the outer side of the connecting block. A fixing disk is fixedly connected to the end of the connecting rod. A rolling bearing is fixedly connected to the outer surface of the fixing disk. A fixing pipe is fixedly connected to the outer ring of the rolling bearing.

[0011] Preferably, a connecting frame is fixedly connected to the upper surface of the fixing pipe. A balancing plate is fixedly connected to the upper surface of the connecting frame. Soft pads are fixedly connected to both sides of the upper surface of the balancing plate. The soft pads are in pressing fit with the lower surface of the placing plate. Limiting frames are fixedly connected to both sides of the lower surface of the balancing plate. A rotating column is rotatably connected to the inner cavity of the limiting frame. A fixing block is fixedly connected to the lower surface of the rotating column. A counterweight block is fixedly connected to the lower surface of the fixing block.

[0012] Preferably, a fixing plate is fixedly connected to the middle of the inner wall of the fixing pipe. Fixing columns are symmetrically and fixedly connected to the outer side of the fixing plate. A spiral elastic sheet is fixedly connected to the outer surface of the fixing column. One end of the spiral elastic sheet far away from the fixing column is fixedly connected to a connecting plate. A support rod is fixedly connected to the end of the connecting plate. The end of the support rod is fixedly connected to the side of the fixing disk far away from the connecting rod.

[0013] The present invention provides a wind turbine blade installation device, which has the following beneficial effects:

[0014] By setting up an angle adjustment mechanism, when the generator blade is hoisted to the installation position and the mounting holes on the connecting flange at its end are not aligned with the screws on the blade mounting seat, the starting and decelerating motor can be used to drive the roller to rotate at a small angle, thereby slightly adjusting the angle of the blade, so as to quickly complete the installation and fixation operation of the generator blade, avoiding the use of manpower or other tools to assist in the alignment operation, effectively improving the installation efficiency of the blade, and at the same time reducing the danger of high-altitude operations; by setting up a placement mechanism, the generator blade to be installed can be placed and fixed, and two second cables are used to connect the placement plate and the support frame. A triangle is formed between the two second cables and the placement plate, which is beneficial to maintaining the balance during the blade hoisting process and preventing it from tilting during the hoisting process. By setting up an anti-tilting mechanism, when the generator blade tilts significantly during the hoisting process, the tilted end of the generator blade can be effectively supported, further preventing the blade from tilting during the hoisting process; in addition, the present invention uses the placement mechanism to fix the blade and connects the placement mechanism with the angle adjustment mechanism. The angle adjustment mechanism and the anti-tilting mechanism operate independently of each other, avoiding interference between the two, and further ensuring the convenience and stability of the adjustment during the hoisting process of the generator blade. Brief Description of the Drawings

[0015] Figure 1 It is a schematic external structure diagram of an installation device for a wind turbine blade of the present invention;

[0016] Figure 2 It is a schematic side view of the structure of an installation device for a wind turbine blade of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the angle adjustment mechanism of the present invention;

[0018] Figure 4 It is a schematic cross-sectional structure diagram of the angle adjustment mechanism of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the placement mechanism of the present invention;

[0020] Figure 6 It is a schematic cross-sectional structure diagram of the placement mechanism of the present invention;

[0021] Figure 7 It is a schematic structural diagram of the clamping mechanism of the present invention;

[0022] Figure 8 It is a schematic structural diagram of the anti-tilting mechanism of the present invention;

[0023] Figure 9 It is a schematic cross-sectional structure diagram of the anti-tilting mechanism of the present invention;

[0024] Figure 10 It is a schematic partial structural diagram of the anti-tilting mechanism of the present invention.

[0025] In the figure: 1, connecting ring; 2, fixed frame; 3, angle adjustment mechanism; 4, placement mechanism; 5, connecting block; 6, anti-tilting mechanism; 31, limit post; 32, first rotating sleeve; 33, roller; 34, first cable; 35, annular groove; 36, anti-slip gasket; 37, second cable; 38, support frame; 39, arc-shaped limit rod; 310, fixed rod; 311, reduction motor; 312, rotating rod; 41, placement ring; 42, arc-shaped limit strip; 43, first arc-shaped limit sleeve; 44, connecting ring; 45, second arc-shaped limit sleeve; 46, clamping mechanism; 47, anti-slip pad; 48, placement plate; 461, top plate; 462, fixed box; 463, threaded ring; 464, threaded rod; 465, second rotating sleeve; 466, clamping plate; 61, connecting frame; 62, connecting rod; 63, fixed disk; 64, rolling bearing; 65, fixed pipe; 66, connecting frame; 67, balance plate; 68, soft pad; 69, limit frame; 610, rotating column; 611, fixed block; 612, counterweight; 613, fixed plate; 614, fixed column; 615, spiral spring piece; 616, connecting plate; 617, support rod. Detailed implementation manners

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0027] As Figures 1-10As shown in the figure, the present invention provides a technical solution: a wind turbine blade installation device, including a connecting ring 1. A fixed frame 2 is fixedly connected to the lower surface of the connecting ring 1. An angle adjustment mechanism 3 is arranged inside the fixed frame 2. The angle adjustment mechanism 3 includes a limiting column 31 which is fixedly connected to the inner wall of the fixed frame 2. A first rotating sleeve 32 is rotatably connected to the outer surface of the limiting column 31. A roller 33 is fixedly connected to the side of the first rotating sleeve 32 away from the limiting column 31. A first cable 34 is sleeved on the outer surface of the roller 33. Both ends of the first cable 34 are fixedly connected to a support frame 38. An arc-shaped limiting rod 39 is fixedly connected to the lower surface of the support frame 38. By setting the angle adjustment mechanism 3, during the hoisting process of the generator blade, the generator blade can rise smoothly, and when the generator blade is blown by the wind, it can achieve a self-balancing effect, thereby keeping the generator blade stable. By setting the limiting column 31, the first rotating sleeve 32 can be limited, so that the first rotating sleeve 32 can drive the roller 33 to rotate stably on the outer surface of the limiting column 31. By setting the first cable 34, certain deformation can be generated. When the generator blade at the bottom is tilted, the first cable 34 can slide in the inner cavity of the roller 33. A placement mechanism 4 is arranged on the lower surface of the arc-shaped limiting rod 39. The placement mechanism 4 includes a placement ring 41 which is fixedly connected to the outer surface of the arc-shaped limiting rod 39. It should be noted that the diameter of the placement ring 41 is larger than the diameter of the widest area of the blade to be hoisted. After the blade is installed, it is convenient to separate the placement ring 41 from the other end of the blade. An arc-shaped limiting strip 42 is fixedly connected to the outer surface of the placement ring 41. A first arc-shaped limiting sleeve 43 is slidably connected to the outer surface of the arc-shaped limiting strip 42. A connecting ring 44 is fixedly connected to the outer side of the first arc-shaped limiting sleeve 43. By setting the placement mechanism 4, the generator blade to be installed can be placed to keep the generator blade stable. By setting the placement ring 41, the generator blade can be placed. By setting the arc-shaped limiting strip 42, it can cooperate with the first arc-shaped limiting sleeve 43, so that the placement ring 41 and the connecting ring 44 can rotate relative to each other. A connecting block 5 is fixedly connected to the outer surface of the connecting ring 44. An anti-tilting mechanism 6 is fixedly connected to the lower surface of the connecting block 5.

[0028] An annular groove 35 is provided on the circumferential side wall of the roller 33. An anti-slip washer 36 is fixedly connected to the inner cavity of the annular groove 35. The first cable 34 passes through the outer surface of the anti-slip washer 36. The anti-slip washer 36 is made of rubber material to increase the friction with the first cable 34, so that the difference in the pulling forces at both ends of the first cable 34 is within a certain range, and there will be no relative sliding between the first cable 34 and the anti-slip washer 36; the angle adjustment mechanism 3 further includes a fixed rod 310. A reduction motor 311 is fixedly connected to the end of the fixed rod 310. The output end of the reduction motor 311 is installed with a rotating rod 312 through a coupling. The end of the rotating rod 312 is fixedly connected to the side of the roller 33 away from the first rotating sleeve 32. By setting the reduction motor 311, after the power supply is connected and the switch is turned on, the rotating rod 312 can be rotated, and then the roller 33 can be rotated, which can slightly adjust the angle of the blade during the installation of the blade, so that the mounting hole at the end of the blade is aligned with the bolt on the blade mounting seat, facilitating the subsequent installation and fixing operation.

[0029] There are two first arc-shaped limit sleeves 43, and the two first arc-shaped limit sleeves 43 are symmetrically and fixedly connected to the outer side surface of the connecting ring 44. An anti-slip pad 47 is fixedly connected to the inner cavity of the placing ring 41. The number of the anti-slip pads 47 is several, and several anti-slip pads 47 are evenly distributed. By providing two first arc-shaped limit sleeves 43, they can cooperate with the arc-shaped limit bars 42, so that the placing ring 41 and the connecting ring 44 can rotate stably. By providing several anti-slip pads 47, the friction between the generator blade and the inner wall of the placing ring 41 can be increased, so as to prevent the generator blade from detaching from the placing ring 41 during hoisting. A strip-shaped hole is formed in the upper surface of the connecting ring 44, and second arc-shaped limit sleeves 45 are symmetrically and fixedly connected to the strip-shaped hole formed in the upper surface of the connecting ring 44. The second arc-shaped limit sleeves 45 are in frictional fit with the outer surface of the arc-shaped limit bars 39. By providing the second arc-shaped limit sleeves 45, the arc-shaped limit bars 39 can be limited, so that the arc-shaped limit bars 39 can slide stably in the inner cavity of the second arc-shaped limit sleeves 45. A placing plate 48 is fixedly connected to the bottom of the outer side surface of the placing ring 41. Two second cables 37 are fixedly connected to the lower surface of the support frame 38. The bottom ends of the two second cables 37 are respectively fixedly connected to the outer side surface of the placing plate 48. By providing the second cables 37, the stability of the placing plate 48 can be increased. A clamping mechanism 46 is fixedly connected to the top of the outer side surface of the placing ring 41. The clamping mechanism 46 includes a top plate 461. The top plate 461 is fixedly connected to the top of the outer side surface of the placing ring 41. A fixed box 462 penetrates through the upper surface of the top plate 461. By providing the placing plate 48, it can cooperate with the placing ring 41 to place the generator blade. By providing the clamping mechanism 46, the generator blade placed at the placing ring 41 and the placing plate 48 can be clamped, so as to prevent the generator blade from loosening during hoisting. A threaded ring 463 is fixedly connected to the inner wall of the fixed box 462. A threaded rod 464 is threadedly connected to the inner cavity of the threaded ring 463. The bottom end of the threaded rod 464 is rotatably connected to a second rotating sleeve 465. A clamping plate 466 is fixedly connected to the lower surface of the second rotating sleeve 465. By providing the threaded ring 463, the threaded rod 464 can be limited, so that when the threaded rod 464 rotates, it can move up and down in the inner cavity of the threaded ring 463, and then the clamping plate 466 can approach the generator blade. By providing the second rotating sleeve 465, when the threaded rod 464 rotates, the clamping plate 466 does not rotate. During use, the operator inserts the generator blade to be hoisted into the inner cavity of the placing ring 41, and makes the anti-slip pad 47 tightly contact the outer surface of the generator blade. Then, the threaded rod 464 is rotated, so that the threaded rod 464 drives the clamping plate 466 to move towards the generator blade, so that the generator blade is clamped tightly.

[0030] The anti-tilting mechanism 6 includes a connecting frame 61, the connecting frame 61 is fixedly connected to the lower surface of the connecting block 5, a connecting rod 62 is fixedly connected to the outer side surface of the connecting block 5, a fixed disk 63 is fixedly connected to the end of the connecting rod 62, a rolling bearing 64 is fixedly connected to the outer surface of the fixed disk 63, a fixed tube 65 is fixedly connected to the outer ring of the rolling bearing 64. By setting the rolling bearing 64, the fixed tube 65 on the outer ring will not drive the connecting rod 62 to rotate when rotating. A connecting frame 66 is fixedly connected to the upper surface of the fixed tube 65, a balance plate 67 is fixedly connected to the upper surface of the connecting frame 66, soft pads 68 are fixedly connected to both sides of the upper surface of the balance plate 67, and the soft pads 68 are in extrusion fit with the lower surface of the placement plate 48. By setting the balance plate 67, the two ends of the generator blade can be limited, so that the generator blade will not tilt when encountering strong wind weather. By setting the soft pads 68, the lower surface of the generator blade can be protected, and the generator blade will not be deformed due to hard contact. Limit frames 69 are fixedly connected to both sides of the lower surface of the balance plate 67, a rotating column 610 is rotatably connected to the inner cavity of the limit frame 69, a fixed block 611 is fixedly connected to the lower surface of the rotating column 610, and a counterweight 612 is fixedly connected to the lower surface of the fixed block 611. By setting the limit frame 69, the rotating column 610 can be limited, so that the rotating column 610 can drive the fixed block 611 and the counterweight 612 to swing in the inner cavity of the limit frame 69. By setting the counterweight 612, a downward force can be applied to both ends of the balance plate 67, so that the balance plate 67 can maintain balance. A fixing plate 613 is fixedly connected to the middle of the inner wall of the fixed tube 65, fixing columns 614 are symmetrically fixedly connected to the outer side surface of the fixing plate 613, a spiral spring piece 615 is fixedly connected to the outer surface of the fixing column 614, a connecting plate 616 is fixedly connected to the end of the spiral spring piece 615 away from the fixing column 614, a support rod 617 is fixedly connected to the end of the connecting plate 616, and the end of the support rod 617 is fixedly connected to the side of the fixed disk 63 away from the connecting rod 62. By setting the spiral spring piece 615, when the generator blade tilts due to a deviation of the fixed center of gravity or an upward airflow, the generator blade will squeeze the balance plate 67 at this time. Under the influence of the elastic potential energy of the spiral spring piece 615, the balance plate 67 will apply an upward thrust to the tilted end of the generator blade, so that the generator blade can maintain balance.

[0031] Working principle: During use, the operator inserts the generator blade to be hoisted into the inner cavity of the placement ring 41, and makes the anti-slip pad 47 tightly contact the outer surface of the generator blade. Then, rotate the threaded rod 464 to drive the clamping plate 466 to move towards the generator blade, so that the generator blade is clamped tightly. After the generator blade is placed, connect the connecting ring 1 to the hook of the hoisting machinery and control the generator blade to rise. Since there may be a deviation in the center of gravity of the clamped blade, and the installation sites are mostly in high mountains or open seas with a complex airflow environment, the blade may tilt significantly at a large angle during the rising process. By setting the balance plate 67 and the counterweight 612, and using the elastic force of the spiral spring piece 615, the tilted generator blade is supported to prevent it from tilting at a larger angle. After the generator blade is hoisted to the installation station, when the mounting holes on the connecting flange at its end are not aligned with the screws on the blade mounting seat, the reduction motor 311 can be started to drive the roller 33 to rotate at a small angle, thereby slightly adjusting the angle of the blade to facilitate the quick completion of the installation and fixation operation of the generator blade. During the above process, since the first cable 34 is connected to the arc-shaped limiting rod 39 through the support frame 38, and the arc-shaped limiting rod 39 is slidably connected to the placement ring 41, a small movement of the first cable 34 will only drive the placement mechanism 4 to deflect, and will not drive the placement mechanism 4 to shift. The above design avoids affecting the longitudinal balance of the blade when adjusting the blade angle. By setting the placement mechanism 4 to fix the blade and connecting the placement mechanism 4 to the angle adjustment mechanism 3, the angle adjustment mechanism 3 and the anti-tilt mechanism 6 operate independently of each other and will not interfere with each other, further ensuring the convenience and stability of the adjustment during the hoisting process of the generator blade.

[0032] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A wind turbine blade mounting device, comprising a connecting ring, a fixing frame being fixedly connected to the lower surface of the connecting ring, characterized in that: The inner cavity of the fixed frame is provided with an angle adjustment mechanism, and the angle adjustment mechanism includes a limit column, the limit column is fixedly connected to the inner wall of the fixed frame, the outer surface of the limit column is rotatably connected with a first rotating sleeve, the first rotating sleeve is fixedly connected to a roller on a side away from the limit column, the outer surface of the roller is sleeved with a first cable, both ends of the first cable are fixedly connected to a support frame, and the lower surface of the support frame is fixedly connected to an arc limit rod; the lower surface of the arc limit rod is provided with a placing mechanism, and the placing mechanism includes a placing ring, the placing ring is fixedly connected to the outer surface of the arc limit rod, the outer surface of the placing ring is fixedly connected to the arc limit strip, the outer surface of the arc limit strip is slidably connected to the first arc limit sleeve, and the outer side surface of the first arc limit sleeve is fixedly connected to the connecting ring; the outer surface of the connecting ring is fixedly connected to a connecting block, and the lower surface of the connecting block The top end of the lifting link rope is fixedly connected to the lifting link rope, and the bottom end of the lifting link rope is fixedly connected to the lifting link rope of the lifting link.

2. A wind turbine blade installation device according to claim 1, characterized in that: An annular groove is provided on the circumferential side wall of the roller, an anti-slip gasket is fixedly connected to the inner cavity of the annular groove, the first cable passes through the outer surface of the anti-slip gasket, the angle adjustment mechanism also includes a fixing rod, the end of the fixing rod is fixedly connected to a reduction motor, the output end of the reduction motor is installed with a rotating rod through a coupling, and the end of the rotating rod is coaxially fixed to the roller.

3. The wind turbine blade installation device according to claim 1, characterized in that: There are two first arc-shaped limit sleeves, and the two first arc-shaped limit sleeves are symmetrically fixedly connected to the outer side of the connecting ring. An anti-slip pad is fixedly connected to the inner cavity of the placement ring. There are several anti-slip pads, and the several anti-slip pads are evenly distributed.

4. The wind turbine blade installation device according to claim 1, characterized in that: The anti-tilt mechanism includes a connecting frame, which is fixedly connected to the lower surface of the connecting block, the outer side surface of the connecting block is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a fixed plate, the outer surface of the fixed plate is fixedly connected to a rolling bearing, and the outer ring of the rolling bearing is fixedly connected to a fixed tube.

5. A wind turbine blade installation device according to claim 4, characterized in that: The upper surface of the fixed tube is fixedly connected to a connecting frame, the upper surface of the connecting frame is fixedly connected to a balancing plate, both sides of the upper surface of the balancing plate are fixedly connected to soft pads, the soft pads are extruded and adapted to the lower surface of the placement plate, both sides of the lower surface of the balancing plate are fixedly connected to a limiting frame, the inner cavity of the limiting frame is rotatably connected to a rotating column, the lower surface of the rotating column is fixedly connected to a fixed block, and the lower surface of the fixed block is fixedly connected to a counterweight.

6. A wind turbine blade installation device according to claim 5, characterized in that: A fixing plate is fixedly connected to the middle part of the inner wall of the fixing tube, a fixing column is symmetrically fixedly connected to the outer side surface of the fixing plate, a spiral spring piece is fixedly connected to the outer surface of the fixing column, a connecting plate is fixedly connected to the end of the spiral spring piece away from the fixing column, a support rod is fixedly connected to the end of the connecting plate, and the end of the support rod is fixedly connected to the side of the fixing plate away from the connecting rod.

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