Blade mounting equipment for wind driven generator

Abstract

The invention discloses wind driven generator blade mounting equipment, and relates to the technical field of wind driven generators, the wind driven generator blade mounting equipment comprises a connecting ring, a fixing frame is fixedly connected to the lower surface of the connecting ring, an angle adjusting mechanism is arranged in an inner cavity of the fixing frame, the angle adjusting mechanism comprises a limiting column, and the limiting column is fixedly connected to the inner wall of the fixing frame; a first rotating sleeve is rotatably connected to the outer surface of the limiting column, a roller is fixedly connected to the side, away from the limiting column, of the first rotating sleeve, the outer surface of the roller is sleeved with a first cable, supporting frames are fixedly connected to the two ends of the first cable, and arc-shaped limiting rods are fixedly connected to the lower surfaces of the supporting frames; when the blade of the generator inclines in the hoisting process, the inclined end of the blade of the generator can be supported, excessive inclination of the blade in the hoisting process is prevented, the angle of the blade can be adjusted according to needs, correction operation conducted through assistance of manpower or other tools is avoided, and the installation efficiency of the blade is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generators, and in particular to a blade installation device for a wind turbine generator. 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 plastic or carbon fiber reinforced plastic. These materials have the advantages of light weight, high strength, corrosion resistance, and can withstand the impact of strong winds and long-term outdoor environment tests. The design of wind turbine blades is crucial. Their shape and size are carefully designed to maximize the capture of wind energy. The airfoil design of the blades can optimize aerodynamic performance and improve wind energy conversion efficiency. At the same time, the length and diameter of the blades will also be reasonably selected according to the power of the wind turbine and the wind resources at the installation site.

[0003] Since wind turbines are mostly installed in high mountains or open sea areas, affected by complex geographical and meteorological conditions, during the hoisting process of the generator blades, if there is a deviation in the determination of the center of gravity of the hoisted blades or the lifting process is affected by the rising air flow, the two ends of the blades are prone to lose balance. If it is not corrected in time, the tilt angle of the blades will become larger and larger, resulting in the inability to align with the bolts on the blade mounting seat for subsequent installation and fixing operations even if hoisted to the installation position. If the blade tilt angle is too large, one end of the blade will touch the ground first when it is returned and hoisted again. If the tip of the blade touches the ground first, the coating and structure on the surface of the blade will be damaged, affecting the performance of the wind turbine. In addition, when fixing the generator blades of different models before lifting, it is impossible to accurately determine the fixing angle, resulting in the upper mounting hole of the blade flange being unable to align with the upper bolt of the blade mounting seat after hoisting to the installation position. Manpower or auxiliary tools are needed to adjust the angle of the blade, which is not only time-consuming and labor-intensive, but also highly dangerous for high-altitude operations, and the installation efficiency of the generator blades is also greatly restricted. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wind turbine blade installation device, comprising a connecting ring, a fixing frame is fixedly connected to the lower surface of the connecting ring, an angle adjustment mechanism is arranged at the inner cavity of the fixing frame, the angle adjustment mechanism comprises a limiting column, the limiting column is fixedly connected to the inner wall of the fixing frame, the outer surface of the limiting column is rotatably connected to a first rotating sleeve, the first rotating sleeve is fixedly connected to a roller on a side away from the limiting 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, the lower surface of the support frame is fixedly connected to an arc-shaped limiting rod, by arranging the angle adjustment mechanism, the generator blades can be made to rise steadily during the hoisting process, and can achieve a self-balancing effect when the generator blades are blown by the wind, thereby keeping the generator blades stable, and by arranging the limiting column, the first rotating sleeve can be limited, so that the first rotating sleeve can drive the roller to stably move on the outer surface of the limiting column. The rotation of the arc limit rod can produce a certain deformation by setting the first cable, so that when the generator blades at the bottom are tilted, the first cable can slide in the inner cavity of the roller; the lower surface of the arc limit rod is provided with a placing mechanism, and the placing mechanism includes a placing ring, and the placing ring is fixedly connected to the outer surface of the arc limit rod, and the outer surface of the placing ring is fixedly connected with an arc limit strip, and the outer surface of the arc limit strip is slidably connected with the first arc limit sleeve, and the outer side surface of the first arc limit sleeve is fixedly connected with a connecting ring. By setting the placing mechanism, the generator blades to be installed can be placed, and the generator blades can be returned when shaking to maintain the stability of the generator blades. By setting the placing ring, the generator blades can be placed, and by setting the arc limit strip, it can cooperate with the first arc limit sleeve, so that the placing ring and the connecting ring can produce relative rotation; the outer surface of the connecting ring is fixedly connected with a connecting block, and the lower surface of the connecting block is fixedly connected with an anti-tilting mechanism.

[0005] Preferably, 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, and the angle adjustment mechanism also includes a fixed rod, the end of the fixed rod is fixedly connected to a reduction motor, and a rotating rod is installed on the output end of the reduction motor 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 limit sleeves is two, and the two first arc-shaped limit sleeves are symmetrically fixedly connected to the outer side of the connecting ring, and 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 hole is provided on the upper surface of the connecting ring, and a second arc-shaped limiting sleeve is symmetrically fixedly connected to the strip hole provided on the upper surface of the connecting ring, and the second arc-shaped limiting sleeve is frictionally matched with the outer surface of the arc-shaped limiting rod.

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

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

[0010] Preferably, 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.

[0011] Preferably, a connecting frame is fixedly connected to the upper surface of the fixed tube, a balance 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 balance plate, the soft pads are extruded and adapted to the lower surface of the placement plate, and a limiting frame is fixedly connected to both sides of the lower surface of the balance plate, a rotating column is rotatably connected to the inner cavity of the limiting frame, a fixed block is fixedly connected to the lower surface of the rotating column, and a counterweight is fixedly connected to the lower surface of the fixed block.

[0012] Preferably, 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.

[0013] The present invention provides a wind turbine blade installation device, which has the following beneficial effects: By setting the angle adjustment mechanism, when the generator blade is hoisted to the installation position, when the mounting hole on the connecting flange at its end is not aligned with the screw on the blade mounting seat, the start-reduction 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 fixing operation of the generator blade, avoid the use of manpower or other tools to assist in the correction operation, effectively improve the installation efficiency of the blade, and reduce the danger of high-altitude operations; by setting the placement mechanism, the generator blade to be installed can be placed and fixed, and the placement plate and the support frame are connected by two second cables. A triangle is formed between the two second cables and the placement plate, which is conducive to maintaining the balance of the blade during the hoisting process and preventing it from tilting during the hoisting process. By setting the anti-tilt 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-tilt mechanism operate independently to avoid mutual interference between the two, further ensuring the convenience and stability of adjustment during the hoisting process of the generator blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the external structure of a wind turbine blade installation device according to the present invention; Figure 2 A structural side view of a wind turbine blade mounting device according to the present invention; Figure 3 This is a schematic diagram of the angle adjustment mechanism structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the angle adjustment mechanism of the present invention; Figure 5 It is a schematic diagram of the placement mechanism structure of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the placement mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the clamping mechanism of the present invention; Figure 8 This is a schematic diagram of the anti-tilt mechanism structure of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the anti-tilt mechanism of the present invention; Fig.10 It is a schematic diagram of the partial structure of the anti-tilt mechanism of the present invention.

[0015] In the figure: 1, connecting ring; 2, fixing frame; 3, angle adjustment mechanism; 4, placing mechanism; 5, connecting block; 6, anti-tilting mechanism; 31, limiting column; 32, first rotating sleeve; 33, roller; 34, first cable; 35, annular groove; 36, anti-slip gasket; 37, second cable; 38, supporting frame; 39, arc limiting rod; 310, fixing rod; 311, reduction motor; 312, rotating rod; 41, placing ring; 42, arc limiting strip; 43, first arc limiting sleeve; 44, connecting ring; 45, second arc limiting 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. Limiting frame; 610. Rotating column; 611. Fixed block; 612. Counterweight block; 613. Fixed plate; 614. Fixed column; 615. Spiral spring; 616. Connecting plate; 617. Support rod. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0017] like Figure 1-Figure 10As shown, the present invention provides a technical solution: a wind turbine blade installation device, comprising a connecting ring 1, a fixing frame 2 is fixedly connected to the lower surface of the connecting ring 1, an angle adjustment mechanism 3 is arranged at the inner cavity of the fixing frame 2, the angle adjustment mechanism 3 comprises a limiting column 31, the limiting column 31 is fixedly connected to the inner wall of the fixing frame 2, the outer surface of the limiting column 31 is rotatably connected to a first rotating sleeve 32, the first rotating sleeve 32 is fixedly connected to a roller 33 on a side away from the limiting column 31, the outer surface of the roller 33 is sleeved with a first cable 34, both ends of the first cable 34 are fixedly connected A support frame 38 is connected, and 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, the generator blades can be steadily raised during the hoisting process, and can achieve a self-balancing effect when the generator blades are blown by the wind, thereby keeping the generator blades 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, a certain deformation can be generated. When the generator blades at the bottom are tilted, the first cable 34 can slide in the inner cavity of the roller 33; a placement mechanism 4 is provided on the lower surface of the arc-shaped limit rod 39, and the placement mechanism 4 includes a placement ring 41, and the placement ring 41 is fixedly connected to the outer surface of the arc-shaped limit 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, in order to facilitate the detachment of the placement ring 41 from the other end of the blade, the outer surface of the placement ring 41 is fixedly connected to the arc-shaped limit strip 42, and the outer surface of the arc-shaped limit strip 42 is slidably connected It is connected to a first arc-shaped limit sleeve 43, and the outer side surface of the first arc-shaped limit sleeve 43 is fixedly connected to a connecting ring 44. By setting a placement mechanism 4, the generator blades to be installed can be placed to keep the stability of the generator blades. By setting a placement ring 41, the generator blades can be placed. By setting an arc-shaped limit strip 42, it can cooperate with the first arc-shaped limit sleeve 43, so that the placement ring 41 and the connecting ring 44 can produce relative rotation; the outer surface of the connecting ring 44 is fixedly connected to a connecting block 5, and the lower surface of the connecting block 5 is fixedly connected to an anti-tilt mechanism 6.

[0018] An annular groove 35 is provided on the circumferential side wall of the roller 33, and an anti-skid 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-skid washer 36. The anti-skid washer 36 is made of rubber material to increase the friction between the first cable 34 and the anti-skid washer 36, so that the difference in tension 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-skid washer 36; the angle adjustment mechanism 3 also includes a fixing rod 310, and the end of the fixing rod 310 is fixedly connected There is a reduction motor 311, and a rotating rod 312 is installed at the output end of the reduction motor 311 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 is connected and the switch is turned on, the rotating rod 312 can be rotated, and then the roller 33 can be rotated. When the blade is installed, the angle of the blade can be slightly adjusted so that the mounting hole at the end of the blade is aligned with the bolt on the blade mounting seat, which is convenient for subsequent installation and fixing operations.

[0019] There are two first arc-shaped limit sleeves 43, and the two first arc-shaped limit sleeves 43 are symmetrically fixedly connected to the outer side of the connecting ring 44. An anti-skid pad 47 is fixedly connected to the inner cavity of the placement ring 41. There are several anti-skid pads 47, and the several anti-skid pads 47 are evenly distributed. By setting two first arc-shaped limit sleeves 43, they can cooperate with the arc-shaped limit strip 42, so that the placement ring 41 and the connecting ring 44 can produce stable rotation. By setting several anti-skid pads 47, the friction between the generator blades and the inner wall of the placement ring 41 can be increased, thereby preventing the generator blades from detaching from the placement ring 41 during the lifting process. The upper surface of the connecting ring 44 is provided with strip holes, and the upper surface of the connecting ring 44 is provided with strip holes. The second arc-shaped limiting sleeve 45 is symmetrically fixedly connected to the strip-shaped hole opened on the surface, and the second arc-shaped limiting sleeve 45 is frictionally adapted to the outer surface of the arc-shaped limiting rod 39. By setting the second arc-shaped limiting sleeve 45, the arc-shaped limiting rod 39 can be limited, so that the arc-shaped limiting rod 39 can slide stably in the inner cavity of the second arc-shaped limiting sleeve 45. The bottom of the outer side of the placement ring 41 is fixedly connected to a placement plate 48, and the lower surface of the support frame 38 is fixedly connected to two second cables 37. The bottom ends of the two second cables 37 are respectively fixedly connected to the outer side of the placement plate 48. By setting the second cable 37, the stability of the placement plate 48 can be increased. The top of the outer side of the placement ring 41 is fixedly connected to a clamping mechanism 4 6. The clamping mechanism 46 includes a top plate 461, which is fixedly connected to the top of the outer side of the placement ring 41. A fixing box 462 runs through the upper surface of the top plate 461. By setting a placement plate 48, it can cooperate with the placement ring 41 to place the generator blades. By setting the clamping mechanism 46, the generator blades placed on the placement ring 41 and the placement plate 48 can be clamped, thereby preventing the generator blades from loosening during the lifting process. A threaded ring 463 is fixedly connected to the inner wall of the fixing box 462, and 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. The lower end of the second rotating sleeve 465 A clamping plate 466 is fixedly connected to the surface. By setting a threaded ring 463, the threaded rod 464 can be limited so that the threaded rod 464 can move up and down in the inner cavity of the threaded ring 463 when rotating, thereby making the clamping plate 466 close to the generator blade. By setting a second rotating sleeve 465, the clamping plate 466 can stop rotating when the threaded rod 464 rotates. When in 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 with the outer surface of the generator blade, and then rotates the threaded rod 464 to make the threaded rod 464 drive the clamping plate 466 to move in the direction of the generator blade, so that the generator blade is clamped tightly.

[0020] The anti-tilt mechanism 6 includes a connecting frame 61, which is fixedly connected to the lower surface of the connecting block 5, a connecting rod 62 is fixedly connected to the outer side of the connecting block 5, a fixing plate 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 fixing plate 63, a fixing tube 65 is fixedly connected to the outer ring of the rolling bearing 64, and the rolling bearing 64 is provided so that the fixing tube 65 of 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 fixing tube 65, and a balancing plate 67 is fixedly connected to the upper surface of the connecting frame 66, and the balancing plate 67 is fixedly connected to the upper surface of the balancing plate 67. Soft pads 68 are fixedly connected to both sides of the upper surface of the plate 48, and the soft pads 68 are pressed and adapted to the lower surface of the placement plate 48. By setting the balance plate 67, the two ends of the generator blades can be limited, so that the generator blades will not tilt when encountering strong winds. By setting the soft pads 68, the lower surface of the generator blades can be protected and the generator blades will not be deformed due to hard contact. The two sides of the lower surface of the balance plate 67 are fixedly connected to the limit frame 69, and the inner cavity of the limit frame 69 is rotatably connected to the rotating column 610, and the lower surface of the rotating column 610 is fixedly connected to the fixed block 611 The lower surface of the fixed block 611 is fixedly connected with a counterweight block 612. By setting a 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 block 612 to swing in the inner cavity of the limit frame 69. By setting the counterweight block 612, a downward force can be applied to both ends of the balance plate 67, so that the balance plate 67 can maintain balance. The middle part of the inner wall of the fixed tube 65 is fixedly connected with a fixed plate 613, and the outer side surface of the fixed plate 613 is symmetrically fixedly connected with a fixed column 614. The outer surface of the fixed column 614 is fixedly connected with a spiral spring piece 615. One end of the spiral spring piece 615 away from the fixed column 614 is fixedly connected to a connecting plate 616, and the end of the connecting plate 616 is fixedly connected to a support rod 617. The end of the support rod 617 is fixedly connected to the side of the fixed plate 63 away from the connecting rod 62. By setting the spiral spring piece 615, when the generator blades are tilted due to the deviation of the fixed center of gravity or the rising airflow, the generator blades will squeeze the balance plate 67. 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, thereby keeping the generator blade balanced.

[0021] Working principle: When in use, the operator inserts the generator blade to be hoisted into the inner cavity of the placement ring 41, and makes the anti-skid pad 47 tightly contact with the outer surface of the generator blade, and then rotates the threaded rod 464 to make the threaded rod 464 drive the clamping plate 466 to move in the direction of the generator blade, so that the generator blade is clamped tightly; after the generator blade is placed, the connecting ring 1 is connected to the hook of the hoisting machinery, and the generator blade is controlled to rise. Since the center of gravity position of the blade clamping may deviate, and the installation site is often located in high mountains or open sea areas, the complex airflow environment may cause the blade to tilt at a large angle during the ascent process. By setting a balance plate 67 and a counterweight block 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 its end When the mounting hole on the connecting flange is not aligned with the screw on the blade mounting seat, the reduction motor 311 can be turned on to drive the roller 33 to rotate at a small angle, thereby slightly adjusting the angle of the blade, so as to quickly complete the installation and fixing operation of the generator blade; in the above process, since the first cable 34 is connected to the arc limit rod 39 through the support frame 38, and the arc limit rod 39 is slidably connected to the placement ring 41, the small movement of the first cable 34 will only cause the placement mechanism 4 to deflect, and will not cause the placement mechanism 4 to shift. The above design avoids affecting the longitudinal balance of the blade when adjusting the blade angle; the blade is fixed by setting the placement mechanism 4, and the placement mechanism 4 is connected to the angle adjustment mechanism 3, the angle adjustment mechanism 3 and the anti-tilt mechanism 6 operate independently without interfering with each other, further ensuring the convenience and stability of adjustment during the hoisting process of the generator blade.

[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A wind turbine blade mounting device, comprising a connecting ring (1), wherein a fixing frame (2) is fixedly connected to the lower surface of the connecting ring (1), characterized in that: An angle adjustment mechanism (3) is provided at the inner cavity of the fixed frame (2), and the angle adjustment mechanism (3) comprises a limit column (31), the limit column (31) is fixedly connected to the inner wall of the fixed frame (2), the outer surface of the limit column (31) is rotatably connected to a first rotating sleeve (32), a side of the first rotating sleeve (32) away from the limit column (31) is fixedly connected to a roller (33), the outer surface of the roller (33) is sleeved with a first cable (34), both ends of the first cable (34) are fixedly connected to a support frame (38), and the lower surface of the support frame (38) is fixedly connected to an arc-shaped limit rod (39); A placing mechanism (4) is provided on the lower surface of the arc-shaped limiting rod (39), and the placing mechanism (4) comprises a placing ring (41), the placing ring (41) is fixedly connected to the outer surface of the arc-shaped limiting rod (39), the outer surface of the placing ring (41) is fixedly connected to an arc-shaped limiting strip (42), the outer surface of the arc-shaped limiting strip (42) is slidably connected to a first arc-shaped limiting sleeve (43), and the outer side surface of the first arc-shaped limiting sleeve (43) is fixedly connected to a connecting ring (44); the outer surface of the connecting ring (44) is fixedly connected to a connecting block (5), and the lower surface of the connecting block (5) is fixedly connected to an anti-tilting mechanism (6).

2. A wind turbine blade installation device according to claim 1, characterized in that: An annular groove (35) is provided on the circumferential side wall of the roller (33); an anti-skid 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-skid washer (36); the angle adjustment mechanism (3) further comprises a fixed rod (310); an end of the fixed rod (310) is fixedly connected to a reduction motor (311); a rotating rod (312) is installed at the output end of the reduction motor (311) via a coupling; and an end of the rotating rod (312) is coaxially fixed to the roller (33).

3. The wind turbine blade installation device according to claim 1, characterized in that: The number of the first arc-shaped limiting sleeves (43) is two, and the two first arc-shaped limiting sleeves (43) are symmetrically fixedly connected to the outer side surface of the connecting ring (44); the inner cavity of the placement ring (41) is fixedly connected with an anti-skid pad (47); the number of the anti-skid pads (47) is several, and the several anti-skid pads (47) are evenly distributed.

4. A wind turbine blade installation device according to claim 3, characterized in that: The upper surface of the connecting ring (44) is provided with a strip hole, and a second arc-shaped limiting sleeve (45) is symmetrically fixedly connected to the strip hole on the upper surface of the connecting ring (44), and the second arc-shaped limiting sleeve (45) is frictionally matched with the outer surface of the arc-shaped limiting rod (39).

5. A wind turbine blade installation device according to claim 4, characterized in that: A placement plate (48) is fixedly connected to the bottom of the outer side surface of the placement 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 placement plate (48), and a clamping mechanism (46) is fixedly connected to the top of the outer side surface of the placement ring (41). The clamping mechanism (46) includes a top plate (461), and the top plate (461) is fixedly connected to the top of the outer side surface of the placement ring (41), and a fixing box (462) passes through the upper surface of the top plate (461).

6. A wind turbine blade installation device according to claim 5, characterized in that: 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), a second rotating sleeve (465) is rotatably connected to the bottom end of the threaded rod (464), and a clamping plate (466) is fixedly connected to the lower surface of the second rotating sleeve (465).

7. A wind turbine blade installation device according to claim 6, characterized in that: The anti-tilt mechanism (6) comprises a connecting frame (61), the connecting frame (61) being fixedly connected to the lower surface of the connecting block (5), the outer side surface of the connecting block (5) being fixedly connected to a connecting rod (62), the end of the connecting rod (62) being fixedly connected to a fixing plate (63), the outer surface of the fixing plate (63) being fixedly connected to a rolling bearing (64), and the outer ring of the rolling bearing (64) being fixedly connected to a fixing tube (65).

8. The wind turbine blade installation device according to claim 7, characterized in that: The upper surface of the fixed tube (65) is fixedly connected to a connection frame (66), the upper surface of the connection frame (66) is fixedly connected to a balance plate (67), both sides of the upper surface of the balance plate (67) are fixedly connected to soft pads (68), the soft pads (68) are pressed and adapted to the lower surface of the placement plate (48), both sides of the lower surface of the balance plate (67) are fixedly connected to a limit frame (69), the inner cavity of the limit frame (69) is rotatably connected to a rotating column (610), the lower surface of the rotating column (610) is fixedly connected to a fixed block (611), and the lower surface of the fixed block (611) is fixedly connected to a counterweight (612).

9. A wind turbine blade installation device according to claim 8, characterized in that: A fixing plate (613) is fixedly connected to the middle of the inner wall of the fixing tube (65); a fixing column (614) is symmetrically fixedly connected to the outer side surface of the fixing plate (613); a spiral spring sheet (615) is fixedly connected to the outer surface of the fixing column (614); an end of the spiral spring sheet (615) away from the fixing column (614) is fixedly connected to a connecting plate (616); an end of the connecting plate (616) is fixedly connected to a supporting rod (617); and an end of the supporting rod (617) is fixedly connected to a side of the fixing plate (63) away from the connecting rod (62).

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