Self-elevating fan installation device and installation method

Abstract

The present application relates to a self-elevating wind turbine installation device, belonging to the field of wind power generation devices, which includes a plurality of installation rings, each of which can be sleeved onto the outside of the side wall of the wind turbine tower, and the installation rings located on the upper and lower sides of the plurality of installation rings are connected to a fixing assembly, which can fix the connected installation ring to the side wall of the wind turbine tower, and the installation ring located in the middle position is connected to a lifting assembly, which is used to drive the connected installation rings to move up and down, and one side of one of the installation rings is connected to a hanging assembly, which is used to connect the wind turbine blades and the installation ring, so as to facilitate the installation of the wind turbine blades. The present application also discloses a self-elevating wind turbine installation method, which has the advantage of improving the efficiency of wind turbine installation.

Description

Technical Field

[0001] The present application relates to the field of wind power generation devices, and in particular to a self-elevating wind turbine installation device and installation method. Background Art

[0002] With the increase of global energy demand and the improvement of environmental protection awareness, wind power generation has been widely used as a clean and renewable energy form. Especially in the field of offshore wind power, due to the more stable wind speed at sea and the richer wind energy resources, the development prospects of offshore wind power are very broad.

[0003] However, the construction of offshore wind power faces many challenges, especially the installation of wind turbines in deepwater areas. Traditional methods of installing wind turbine blades mainly rely on large floating cranes and barges, which are not only costly but also greatly affected by weather and sea conditions, resulting in low installation efficiency. In addition, the complex geological conditions in deepwater areas also increase the difficulty of installing wind turbine blades, and traditional installation methods are difficult to meet the requirements of efficiency, safety and economy. Summary of the invention

[0004] In order to facilitate the installation of fan blades, the present application provides a self-elevating fan installation device and installation method.

[0005] In a first aspect, the present application provides a self-elevating wind turbine installation device, which adopts the following technical solution:

[0006] A self-lifting wind turbine installation device includes multiple installation rings, each of which can be mounted on the outside of the side wall of the wind turbine tower. The installation rings located on the upper and lower sides of the multiple installation rings are connected to a fixing component, and the fixing component can fix the connected installation rings to the side wall of the wind turbine tower. The installation ring located in the middle position is connected to a lifting component, and the lifting component is used to drive the connected installation rings to move up and down. One side of one of the installation rings is connected to a hanging component, and the hanging component is used to connect the wind turbine blade and the installation ring.

[0007] By adopting the above technical solution, when the fan blades need to be installed, the fan blades are connected to the mounting ring through the hanging assembly, and then the mounting ring and the connected fan blades are driven upward by the cooperation of the fixing assembly and the lifting assembly, thereby reducing the process of the staff moving the fan blades to the upper side of the fan tower.

[0008] Optionally, the fixing assembly includes a plurality of fixing cylinders connected to the inside of the mounting ring, each of the fixing cylinders is fixedly connected to a fixing block on one side close to the wind tower, and each of the fixing blocks can abut against an outer wall of an adjacent wind tower.

[0009] By adopting the above technical solution, when it is necessary to fix the mounting ring and the wind tower, the connected fixing blocks are driven by multiple fixing cylinders to abut against the side walls of the adjacent wind tower, thereby achieving the fixed connection operation of the mounting ring and the adjacent wind tower.

[0010] Optionally, the lifting assembly includes a plurality of dual-axis cylinders fixedly connected to the inside of the mounting ring located at a middle position, and a piston rod of each dual-axis cylinder is fixedly connected to an adjacent mounting ring.

[0011] By adopting the above technical solution, when the mounting ring needs to be lifted, the mounting rings on the upper and lower sides are driven to move alternately by the dual-axis cylinder, thereby realizing the process of driving multiple mounting rings and the fan blades connected to the mounting rings to move.

[0012] Optionally, each of the mounting rings connected to the fixed oil cylinder is connected to a supporting assembly, and the supporting assembly is used to connect the mounting ring and the wind turbine tower.

[0013] By adopting the above technical solution, when fixing the mounting ring and the wind turbine tower, the mounting ring and the wind turbine tower body are further connected by the supporting assembly, so that the relative position of the mounting ring and the wind turbine blades can be further fixed.

[0014] Optionally, the supporting assembly includes a supporting screw located on one side of each of the fixed cylinders, each of the supporting screws is fixedly connected to a supporting block on the side close to the wind tower, each of the supporting blocks can abut against the outer wall of an adjacent wind tower, each of the supporting screws is threadedly sleeved with a supporting gear on the outside, each of the supporting gears is meshed with a supporting rack on one side, and each of the supporting racks has one end away from the meshed supporting gear that passes through a mounting ring of the dual-axis cylinder and is fixedly connected to a relative mounting ring.

[0015] By adopting the above technical solution, when the dual-axis cylinder drives the two spaced mounting rings to move relative to each other, the supporting rack connected to one of the mounting rings rotates relative to the engaged supporting gear, and the supporting gear drives the connected supporting screw to move during the rotation, and the supporting screw drives the connected supporting block to move and abut against the adjacent wind tower side wall during the movement, thereby realizing the operation of further fixing the relative position of the wind tower side wall and the adjacent mounting ring.

[0016] Optionally, each of the mounting rings is formed by splicing a plurality of mounting blocks together, and two adjacent mounting blocks are connected via a locking assembly.

[0017] By adopting the above technical solution, a plurality of mounting blocks are spliced ​​into a mounting ring, thereby facilitating the process of workers sleeve the mounting ring onto the outside of the wind turbine tower.

[0018] Optionally, the locking assembly includes a locking ratchet bar fixedly connected to one side of each mounting block, a groove is provided on one side of each mounting block close to another adjacent locking ratchet bar, and a fixed ratchet bar is provided inside each groove for engaging with the adjacent locking ratchet bar.

[0019] By adopting the above technical solution, when two adjacent installation blocks are spliced ​​together, the locking ratchet bar is engaged with the adjacent fixed ratchet bar, so that the relative position between the two adjacent installation blocks can be fixed.

[0020] Optionally, the locking assembly includes a locking spring rod slidably inserted into the mounting block and connected to a locking ratchet bar on one side, each of the locking spring rods is connected to a locking spring for driving the locking spring rod to move out of the mounting block to which it is connected, and one side of the mounting block with a groove is rotatably connected to a push rod having one end that can be connected to an adjacent locking spring rod, each of the push rods is connected to a coil spring for driving the push rod to rotate, and each of the push rods is hinged with a lever at one end away from the locking spring rod, and each of the lever rods can be inserted into the adjacent mounting block under the drive of the push rod.

[0021] By adopting the above technical solution, when splicing two adjacent mounting blocks, the locking spring rod connected to one of the mounting blocks is inserted into the inside of the other mounting block and drives the adjacent push rod to rotate. During the rotation process, the push rod drives the adjacent push rod to be inserted into the inside of the other mounting block, thereby achieving full fixing operation of the two adjacent mounting blocks.

[0022] Optionally, the hanging assembly includes a hanging frame fixedly connected to one side of one of the mounting rings, one side of the hanging frame is hinged with a connecting plate, the connecting plate is used to connect the fan blades, and a hanging cylinder is connected between the connecting plate and the adjacent side wall of the mounting ring for driving the connecting plate to rotate.

[0023] By adopting the above technical solution, when it is necessary to connect the mounting ring and the fan blade, the fan blade is connected to the connecting plate, and then the mounting ring drives the hanging frame and the fan blade to move. When the fan blade moves to the top of the fan tower, the connecting plate and the fan blade are driven to rotate by the hanging cylinder, thereby facilitating the process of installing the fan blade by the staff.

[0024] In a second aspect, the present application provides a method for installing a self-elevating wind turbine, which adopts the following technical solution:

[0025] A method for installing a self-elevating fan comprises the following steps:

[0026] S1: Splicing and assembling: Assemble the mounting ring and the fan blades, and connect the fan blades to the hanging assembly;

[0027] S2: Blade movement: The fixing assembly and the lifting assembly cooperate with each other to drive the mounting ring and the fan blades connected to the mounting ring to move to the top of the fan tower;

[0028] S3: Installing blades: driving the fan blades to rotate through the hanging assembly and installing the fan blades;

[0029] S4: Disassembly and recycling: Through the cooperation of the fixing assembly and the lifting assembly, the mounting ring is moved to the bottom of the wind turbine tower, and the mounting ring is disassembled and recycled.

[0030] By adopting the above technical solution, it is convenient for workers to install the fan blades.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By setting the mounting ring, fixing components and lifting components, it is convenient for the staff to lift the fan blades;

[0033] 2. By setting the supporting component, the connection state between the mounting ring and the wind turbine tower can be further supported, so that the connection state between the mounting ring and the wind turbine tower is more stable;

[0034] 3. By setting up the hanging component, it is possible to facilitate the process of workers installing the fan blades after lifting the fan blades to the top of the fan tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0036] Figure 2 It is a cross-sectional view of the internal structure of the mounting ring of an embodiment of the present application.

[0037] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the structure A in the middle.

[0038] Explanation of the accompanying drawings: 1. Mounting ring; 11. Mounting block; 2. Fixing assembly; 21. Fixing cylinder; 22. Fixing block; 23. Buffer pad; 3. Lifting assembly; 31. Dual-axis cylinder; 4. Hanging assembly; 41. Hanging frame; 42. Connecting plate; 43. Hanging cylinder; 5. Locking assembly; 51. Locking ratchet bar; 52. Fixing ratchet bar; 53. Compression spring; 54. Locking spring rod; 541. Locking spring; 55. Push rod; 551. Coil spring; 56. Push rod; 6. Supporting assembly; 61. Supporting screw; 62. Supporting block; 63. Supporting pad; 64. Limiting rod; 65. Supporting gear; 66. Supporting rack. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-Attached Figure 3 This application is described in further detail.

[0040] The present application embodiment discloses a self-elevating wind turbine installation device. Figure 1 , Figure 2 and Figure 3 , including a plurality of mounting rings 1. In this embodiment, three mounting rings 1 are provided, and the three mounting rings 1 are evenly distributed along the vertical direction. The mounting rings 1 located at the upper and lower sides of the three mounting rings 1 are both connected with fixing components 2, and the fixing components 2 are used to connect the mounting rings 1 with the wind turbine tower body.

[0041] The mounting ring 1 in the middle is connected to a lifting assembly 3, which is connected to the mounting rings 1 on both sides and is used to drive the three mounting rings 1 to move up and down. A hanging assembly 4 is connected to one side of the mounting ring 1 in the middle, which is used to connect the fan blades and drive the fan blades to rotate.

[0042] When the fan blade needs to be installed, the fan blade is connected to the hanging component 4. The mounting ring 1 is connected to the fan tower body through the fixing component 2. Then, the mounting ring 1 and the fan blade connected to the mounting ring 1 are driven to move upward by the lifting component 3. When the mounting ring 1 and the fan blade move to the top of the fan tower body, the fan blade is installed, thereby realizing the operation of installing the fan blade, which facilitates the installation process of the fan blade by the staff.

[0043] Each mounting ring 1 is configured to be formed by splicing three independent mounting blocks 11 , and each mounting block 11 is connected to an adjacent mounting ring 1 via a locking assembly 5 .

[0044] The mounting ring 1 is formed by splicing three mounting blocks 11, and the mounting blocks 11 and the mounting ring 1 are connected by the locking assembly 5, so that the process of connecting the mounting ring 1 and the wind turbine tower body can be facilitated for the staff.

[0045] The fixing assembly 2 includes a fixing cylinder 21 fixedly connected to each mounting block 11 located at the upper and lower sides in the horizontal direction, and the piston rod of each fixing cylinder 21 extends toward one side of the wind turbine tower body and penetrates the side wall of the adjacent mounting block 11. The piston rod end of each fixing cylinder 21 is fixedly connected to a fixing block 22, and each fixing block 22 is fixedly connected to a buffer pad 23 on one side away from the fixing cylinder 21, and each buffer pad 23 can abut against the adjacent side wall of the wind turbine tower body on one side away from the connected fixing block 22.

[0046] The lifting assembly 3 includes a plurality of dual-axis oil cylinders 31. In this embodiment, three dual-axis oil cylinders 31 are provided, and the three dual-axis oil cylinders 31 are provided in one-to-one correspondence with the three mounting blocks 11 located in the middle. Each dual-axis oil cylinder 31 is vertically plugged into the corresponding mounting block 11 and is fixedly connected to the mounting block 11. The piston rod of each dual-axis oil cylinder 31 passes through the connected mounting block 11 and is fixedly connected to the relative mounting block 11.

[0047] In actual use, the mounting ring 1 is sleeved onto the outside of the wind turbine tower body, and then the mounting ring 1 is connected to the wind turbine tower body by abutting a plurality of buffer pads 23 against the wind turbine tower body. Then, the fixed oil cylinder 21 on the upper side is loosened, and the double-axis oil cylinder 31 is opened to drive the mounting ring 1 on the upper side to move upward. After the upper mounting ring 1 is moved to an appropriate position, the mounting ring 1 on the upper side is fixed by the fixed oil cylinder 21. The mounting ring 1 in the middle position and the mounting ring 1 on the lower side are driven upward by the double-axis oil cylinder 31, thereby realizing the process of driving the fan blades to move upward. Then, the operation of driving the fan blades to move is realized.

[0048] Each mounting block 11 located at the upper and lower sides is connected to a support assembly 6, and the support assembly 6 is used to further fix the connected mounting ring 1 and the adjacent tower body side wall.

[0049] By providing the support assembly 6, the connection between the mounting ring 1 and the adjacent wind turbine tower body can be made more stable.

[0050] The supporting assembly 6 includes a supporting screw 61 fixedly inserted into each mounting block 11, each supporting screw 61 is horizontally arranged, and the side of each supporting screw 61 close to the middle axis penetrates the adjacent side wall of the mounting block 11 and is slidably connected to the side wall of the mounting block 11 in the horizontal direction. One end of each supporting screw 61 that penetrates the side wall of the mounting block 11 is fixedly connected to a supporting block 62, and one end of each supporting block 62 away from the connected supporting screw 61 is fixedly connected to a supporting pad 63, and the side of each supporting pad 63 away from the supporting block 62 can abut against the wind turbine tower body. A side of each supporting block 62 close to the connected mounting block 11 is fixedly connected to a limiting rod 64, and one end of each limiting rod 64 away from the supporting block 62 penetrates the adjacent side wall of the mounting block 11 and is slidably connected to the side wall of the mounting block 11.

[0051] The outer part of each supporting screw 61 is threadedly sleeved with a supporting gear 65, and one side of each supporting gear 65 is meshed with a supporting rack 66. Each supporting rack 66 is vertically arranged and passes through the connected mounting block 11. One end of each supporting rack 66 passing through the mounting block 11 slides through the mounting block 11 connected to the mounting ring 1 located in the middle position and is fixedly connected to the opposite mounting block 11.

[0052] One side of each fixing block 22 close to the adjacent supporting block 62 can extend to between the end of the supporting block 62 and the wind turbine tower body.

[0053] When the mounting ring 1 needs to be moved, the fixing block 22 is first driven by the fixing cylinder 21 to move to the side away from the wind turbine tower body. The fixing block 22 drives the adjacent supporting block 62 to move to the side away from the wind turbine tower body while moving, so that the supporting block 62 is no longer in full contact with the wind turbine tower body. At the same time, the dual-axis cylinder 31 drives the mounting ring 1 to move upward, so that the supporting rack 66 can drive the supporting gear 65 to rotate. The supporting gear 65 drives the supporting screw 61 and the supporting block 62 to move to the side away from the wind turbine tower body during the rotation process.

[0054] Then, when the dual-axis cylinder 31 drives another mounting ring 1 to move upward, the supporting rack 66 drives the supporting screw 61 and the supporting block 62 to move toward the side close to the wind turbine tower body through the supporting gear 65, thereby realizing the fixing process of the mounting ring 1 and the wind turbine tower body.

[0055] The locking assembly 5 includes a locking ratchet bar 51 fixedly connected to the side of each mounting block 11 close to another mounting block 11, and each mounting block 11 is provided with a groove for placing the adjacent locking ratchet bar 51 on the side close to another locking ratchet bar 51, and each groove is provided with a fixed ratchet bar 52 that can be engaged with the adjacent locking ratchet bar 51, and each fixed ratchet bar 52 is fixedly connected to a compression spring 53 on the side away from the adjacent locking ratchet bar 51, and the compression spring 53 can drive the connected fixed ratchet bar 52 to engage with the adjacent locking ratchet bar 51.

[0056] Each mounting block 11 is connected to a locking ratchet bar 51, and a locking spring rod 54 is inserted into a side wall thereof in a horizontal sliding direction. A locking spring 541 is fixedly connected between one end of each locking spring rod 54 inserted into the connected mounting block 11 and the opposite side wall of the mounting block 11. A push rod 55 is rotatably connected inside the groove provided in each mounting block 11, and a coil spring 551 is connected at the rotation point of the push rod 55 to drive the push rod 55 to rotate. One end of each push rod 55 can abut against the adjacent locking spring rod 54. One end of each push rod 55 away from the adjacent locking spring rod 54 is hinged to a lever 56, and one end of each lever 56 away from the connected push rod 55 can be inserted into the adjacent mounting block 11.

[0057] When two adjacent mounting blocks 11 need to be connected, the mounting blocks 11 are spliced ​​together. During the splicing of the mounting blocks 11, the locking ratchet bar 51 is engaged with the fixing ratchet bar 52, thereby achieving the preliminary fixation of the two adjacent mounting blocks 11. Afterwards, the locking spring bar 54 is inserted into the inside of another adjacent mounting block 11 under the drive of the locking spring 541, and drives the push rod 55 in the mounting block 11 to rotate. During the rotation process, the push rod 55 drives the connected lever 56 to be inserted into the inside of another adjacent mounting block 11, thereby achieving the full fixation operation of the two adjacent mounting blocks 11.

[0058] Each locking spring rod 54 and the fixed rack are fixedly connected with a connecting rod, which penetrates the side wall of the mounting block 11 away from the tower body and can be moved in the horizontal plane. For the convenience of display and the relatively simple structure, the connecting rod is not shown in the drawings of the specification.

[0059] When it is necessary to remove the mounting ring 1, the two adjacent connecting rods are moved away from each other, so that the fixed ratchet bar 52 is no longer engaged with the locking ratchet bar 51, and the lever 56 is moved to the inside of the groove formed in the connected mounting block 11 under the drive of the coil spring 551 and the push rod 55, and then the two adjacent mounting blocks 11 can be separated by movement.

[0060] The hanging assembly 4 includes a hanging frame 41 fixedly connected to one of the mounting blocks 11 of the mounting ring 1 at the middle position away from the side wall of the tower body. A connecting plate 42 is hingedly connected to the side of the hanging frame 41 away from the connected mounting block 11, and the connecting plate 42 is used to connect the fan blades. A hanging cylinder 43 arranged parallel to the hanging frame 41 is provided on the upper side of the connecting plate 42, one end of the hanging gear cylinder is hinged to the connecting plate 42, and the other end of the hanging cylinder 43 is hinged to the side wall of the adjacent mounting block 11.

[0061] When the fan blades need to be connected, the fan blades are connected to the connecting plate 42. After the fan blades are lifted to the top of the fan tower, the connecting plate 42 and the connected fan blades are driven to rotate by the hanging cylinder 43, thereby facilitating the process of the staff installing the fan blades and the fan tower.

[0062] The embodiment of the present application also discloses a method for installing a self-elevating wind turbine.

[0063] S1 splicing and assembling: the mounting block 11 is sleeved onto the outside of the wind turbine tower body, and then two adjacent mounting rings 1 are connected by locking the ratchet bar 51, fixing the ratchet bar 52 and the lever 56, and the wind turbine blades are connected to the connecting plate 42;

[0064] S2 Blade movement: by alternately opening the multiple fixed oil cylinders 21 located on the upper side, the multiple double-axis oil cylinders 31 located in the middle position and the multiple fixed oil cylinders 21 located on the lower side, the three mounting rings 1 and the connected fan blades are driven to move upward;

[0065] S3: Installing blades: After the blades are moved to the top of the fan tower, the hanging cylinder 43 is opened to drive the connecting plate 42 and the fan blades to rotate to a vertical state, and then the staff installs the fan blades and the fan tower;

[0066] S4 disassembly and recovery: After the installation of the fan blades is completed, the three mounting rings 1 are moved to the bottom of the fan tower by cooperating with multiple fixed cylinders 21 and multiple dual-axis cylinders 31, and then the connecting rods are pushed away from each other to separate the adjacent mounting blocks 11, thereby realizing the recovery operation of the device.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-elevating fan installation device, characterized in that: include: A plurality of mounting rings (1), each of the mounting rings (1) being capable of being sleeved onto the outside of the side wall of a wind turbine tower; the mounting rings (1) located at the upper and lower sides of the plurality of mounting rings (1) are each connected to a fixing assembly (2); the fixing assembly (2) is capable of fixing the connected mounting ring (1) to the side wall of the wind turbine tower; the mounting ring (1) located in the middle is connected to a lifting assembly (3); the lifting assembly (3) is used to drive the connected mounting rings (1) to move up and down; one side of one of the mounting rings (1) is connected to a hanging assembly (4); the hanging assembly (4) is used to connect the wind turbine blade and the mounting ring (1); The fixing assembly (2) comprises a plurality of fixing cylinders (21) connected to the inside of the mounting ring (1), each fixing cylinder (21) being fixedly connected to a fixing block (22) on one side close to the wind turbine tower, and each fixing block (22) being capable of abutting against an outer wall of an adjacent wind turbine tower; The lifting assembly (3) comprises a plurality of dual-axis oil cylinders (31) fixedly connected to the inside of the mounting ring (1) located at a middle position, and the piston rod of each dual-axis oil cylinder (31) is fixedly connected to the adjacent mounting ring (1); Each of the mounting rings (1) connected to the fixed oil cylinder (21) is connected to a supporting assembly (6), and the supporting assembly (6) is used to connect the mounting ring (1) and the wind turbine tower; The supporting assembly (6) comprises a supporting screw (61) located at one side of each of the fixed oil cylinders (21); each of the supporting screws (61) is fixedly connected to a supporting block (62) on one side close to the wind turbine tower; each of the supporting blocks (62) can abut against the outer wall of an adjacent wind turbine tower; each of the supporting screws (61) is threadedly sleeved with a supporting gear (65) on the outside; each of the supporting gears (65) is meshed with a supporting rack (66) on one side; and each of the supporting racks (66) has an end away from the meshed supporting gear (65) that penetrates the mounting ring (1) of the dual-axis oil cylinder (31) and is fixedly connected to the opposite mounting ring (1).

2. A self-elevating fan installation device according to claim 1, characterized in that: Each of the mounting rings (1) is formed by splicing a plurality of mounting blocks (11) together, and two adjacent mounting blocks (11) are connected via a locking assembly (5).

3. A self-elevating fan installation device according to claim 2, characterized in that: The locking assembly (5) comprises a locking ratchet bar (51) fixedly connected to one side of each mounting block (11); a groove is provided on one side of each mounting block (11) close to another adjacent locking ratchet bar (51); and a fixed ratchet bar (52) is provided inside each groove for clamping with the adjacent locking ratchet bar (51).

4. A self-elevating fan installation device according to claim 3, characterized in that: The locking assembly (5) comprises a locking spring rod (54) slidably plugged into a side of the mounting block (11) connected to a locking ratchet bar (51); each of the locking spring rods (54) is connected to a locking spring (541) for driving the locking spring rod (54) to move out of the interior of the connected mounting block (11); a side of the mounting block (11) provided with a groove is rotatably connected to a push rod (55) having one end capable of rotating with an adjacent locking spring rod (54); each of the push rods (55) is connected to a coil spring (551) for driving the push rod (55) to rotate; and each of the push rods (55) is hingedly connected to a lever (56) at one end away from the locking spring rod (54); and each of the levers (56) can be plugged into the interior of an adjacent mounting block (11) under the drive of the push rod (55).

5. A self-elevating fan installation device according to claim 1, characterized in that: The hanging assembly (4) comprises a hanging frame (41) fixedly connected to one side of one of the mounting rings (1); a connecting plate (42) is hingedly connected to one side of the hanging frame (41); the connecting plate (42) is used to connect the fan blades; a hanging cylinder (43) is connected between the connecting plate (42) and the side wall of the adjacent mounting ring (1) and is used to drive the connecting plate (42) to rotate.

6. A method for installing a self-elevating fan, characterized in that: The application of a self-elevating wind turbine installation device as described in any one of claims 1 to 5 comprises the following steps: S1: splicing and assembling: assembling the mounting ring (1) and the fan blades, and connecting the fan blades to the hanging assembly (4); S2: Blade movement: The fixing assembly (2) and the lifting assembly (3) cooperate with each other to drive the mounting ring (1) and the fan blades connected to the mounting ring (1) to move to the top of the fan tower; S3: Installing blades: driving the fan blades to rotate through the hanging component (4) and installing the fan blades; S4: Disassembly and recycling: The fixing assembly (2) and the lifting assembly (3) cooperate with each other to move the mounting ring (1) to the bottom of the wind turbine tower, disassemble the mounting ring (1) and recycle it.

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