Auxiliary device for hoisting wind power assembly

Abstract

The invention discloses a wind power assembly hoisting auxiliary device, and relates to the technical field of wind power engine assembly, the wind power assembly hoisting auxiliary device comprises a base, the top of the base is provided with a fan hub, the top of the fan hub is provided with a support frame, and the bottom of the support frame is fixedly provided with a telescopic device; a bearing ring is fixedly mounted at the output end of the telescopic equipment, an arc-shaped sliding rail is fixedly mounted in the supporting frame, a hoisting frame is fixedly mounted at the moving end of the arc-shaped sliding rail, a hydraulic device is fixedly mounted on the inner wall of the supporting frame, and a hollow cylinder is fixedly mounted at the bottom of the output end of the hydraulic device; and an annular piston is slidably mounted on the inner wall of the hollow cylinder, so that shaking of the fan hub during hoisting can be reduced, meanwhile, angle deviation of the fan hub during hoisting is avoided, and the supporting frame and the fan hub can be driven to turn over through the arc-shaped sliding rail.

Description

Technical Field

[0001] This invention belongs to the field of wind turbine assembly, specifically relating to a wind power component hoisting auxiliary device. Background Technology

[0002] Wind turbine component hoisting is a systematic project. For the hoisting of core components such as blades, hubs, and rotors, the industry has developed a variety of specialized auxiliary devices to improve the safety, efficiency, and precision of the hoisting process.

[0003] Patent publication number CN115788789A relates to a wind turbine component hoisting auxiliary device, including a hoisting assembly and an auxiliary mechanism. The hoisting assembly includes a wind turbine hub, a platform, three fixing rings, and two first traction ropes. This patent utilizes the platform to limit the position of the wind turbine hub, allowing for ground-based installation of the wind turbine blades and hub. The hub is then secured using the second traction rope, the first traction rope, a wire rope, and the fixing rings, enabling the hoisting equipment to hoist the wind turbine blades and hub as a whole. When the initial hoisting height of the wind turbine blades and hub reaches the required level, a communication module receives a command from a mobile terminal to activate a reduction gear self-locking motor. The working reduction gear self-locking motor drives a rotating roller, which uniformly releases the second traction rope, allowing the wind turbine blades and hub to be erected in the air. This eliminates the need for multiple hoisting devices to simultaneously hoist the wind turbine blades and hub, reducing construction costs. In existing wind turbine components, the hub is typically hoisted using traction ropes or wire ropes. Due to the elasticity of the traction ropes, the hub's position is prone to shifting during hoisting. It is also difficult to change the hoisting angle of the hub during hoisting, making it difficult to install the hub to the main shaft via the flange. Furthermore, it is difficult to accurately monitor the hub's offset angle during hoisting, making it impossible to accurately determine the angle that needs adjustment based on the initial angle during installation. Summary of the Invention

[0004] In view of this, it is necessary to provide a wind turbine component hoisting auxiliary device to address the shortcomings of the existing technology, so as to solve the problem that the elasticity of the traction rope causes the hub position to easily shift during hoisting, and that it is difficult to change the hub hoisting angle during hoisting.

[0005] To solve the above problems, this application adopts the following technical solution: One objective of this application is to provide a wind turbine component hoisting auxiliary device, comprising: a base, a wind turbine hub mounted on the top of the base, a support frame mounted on the top of the wind turbine hub, a telescopic device fixedly mounted on the bottom of the support frame, a load-bearing ring fixedly mounted on the output end of the telescopic device, an arc-shaped slide rail fixedly mounted inside the support frame, a lifting frame fixedly mounted on the moving end of the arc-shaped slide rail, a hydraulic device fixedly mounted on the inner wall of the support frame, a hollow cylinder fixedly mounted on the bottom of the output end of the hydraulic device, an annular piston slidably mounted on the inner wall of the hollow cylinder, a suction cup fixedly mounted on the bottom of the annular piston via a connecting rod, and the bottom of the suction cup communicating with the bottom of the annular piston via a hose to prevent the wind turbine hub from detaching from the load-bearing ring, while simultaneously causing the suction cup to adhere to the top of the wind turbine hub, preventing the position of the wind turbine hub from shifting from the center and affecting subsequent installation.

[0006] In some embodiments, a reset member is provided between the annular piston and the interior of the hollow cylinder. The reset member is used to support the annular piston and to reset the annular piston. The suction cup is located at the top of the fan hub.

[0007] In some embodiments, the surface of the hydraulic device is provided with a detection component, which includes an L-shaped frame. The L-shaped frame is fixedly installed on the circumferential surface of the output end of the hydraulic device. A rubber wheel is rotatably installed inside the L-shaped frame. A push block is fixedly installed on the rotation shaft of the rubber wheel. An L-shaped plate is attached to the surface of the L-shaped frame. A displacement sensor is provided inside the L-shaped frame. The displacement sensor detects the rotation of the rubber wheel. The displacement of the fan hub can be determined by the rotation angle of the rubber wheel.

[0008] In some embodiments, an arc-shaped block is fixedly installed on the top of the L-shaped plate, an annular block is slidably installed on the outer wall of the hydraulic device, an arc-shaped plate is fixedly installed on the top of the annular block, a trapezoidal block is slidably passed through the bottom of the lifting frame, and an inclined block is fixedly installed on the top of the arc-shaped plate.

[0009] In some embodiments, the pushing block contacts the L-shaped plate, and the rotation of the pushing block can push the L-shaped plate to move. The L-shaped plate slides through the outer wall of the hydraulic device, preventing the L-shaped plate from moving up and down, and at the same time serving to support the L-shaped plate. The bottom and edge of the annular block are both set as arcs. The bottom of the annular block contacts the arc block. The arc plate is slidably connected to the inner wall of the arc slide rail. The arc slide rail can support the arc plate, making the movement of the arc plate more stable. A first spring is provided between the trapezoidal block and the inside of the lifting frame. The first spring can support the trapezoidal block, allowing the trapezoidal block to move up and down within a range. The top of the inclined block is set as an arc.

[0010] In some embodiments, the surface of the support frame is provided with a limiting component, the limiting component including a bending plate slidably mounted on the surface of the support frame, a telescopic frame hinged to the bottom of the bending plate, a connecting rod fixedly mounted to the free end of the telescopic frame, and a fixing block fixedly mounted to the top of the load-bearing ring.

[0011] In some embodiments, a cylinder is fixedly installed on the top of the L-shaped frame, the left side of the cylinder is connected to the bottom of the inner wall of the hollow cylinder through a pipe, a piston plate is slidably installed inside the cylinder, a fixing rod is fixedly installed on the right side of the piston plate, the fixing rod slides through the cylinder, a nozzle is installed at the bottom of the cylinder through a metal pipe, and a limiting rod is fixedly installed on the surface of the curved plate.

[0012] In some embodiments, a second spring is provided between the bending plate and the support frame. The second spring can drive the bending plate to return to its original position. The top of the bending plate contacts the edge of the annular block. The telescopic frame slides through the support frame, so that the support frame restricts the telescopic frame to only move up and down. A negative pressure chamber is provided on the right side of the piston plate. A return spring is provided between the right side of the piston plate and the cylinder. The return spring is used to improve the effect of the piston plate moving to the right. Liquid is provided inside the negative pressure chamber. The limiting rod contacts the fixing rod. A pressure relief valve is provided inside the metal tube. The pressure relief valve can prevent liquid leakage. Liquid can only be sprayed out of the nozzle through the pressure relief valve when it is squeezed by a certain pressure.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a load-bearing ring and a hydraulic device to restrain the wind turbine hub on a support frame, thereby reducing swaying during hoisting and preventing angular displacement of the hub. An arc-shaped slide rail allows the support frame and hub to rotate, facilitating hub installation. The hydraulic device's output moves downwards to contact the hub, causing its reaction force to push the bottom of the support frame and load-bearing ring tightly against the hub, preventing detachment. Simultaneously, it causes suction cups to adhere to the top of the hub, preventing displacement and ensuring subsequent installation. Changing the hydraulic pressure on the hub alters the suction strength of the suction cups, improving hub stability.

[0014] In this invention, when the suction cup is attached to the fan hub, it causes the rubber wheel to also be attached to the fan hub. When the position of the fan hub shifts, it causes the rubber wheel to rotate. The rotation of the rubber wheel can detect the position shift of the fan hub. When the rubber wheel rotates, the push block will push the L-shaped plate to move, so that the inclined block on the arc plate will restrict the movement of the trapezoidal block and the lifting frame, preventing the fan hub from continuing to rotate after the position shifts, which would cause the rotation angle to be inconsistent with the actual rotation angle.

[0015] In this invention, after the wind turbine hub shifts position on the support frame, the annular block pushes the bending plate to move. The bending plate then moves the telescopic frame and connecting rod downwards to restrict the fixed block and the load-bearing ring, preventing the wind turbine hub from being loosened by the load-bearing ring during hoisting and causing danger. As the bending plate moves, it also moves the limiting rod to release the restriction on the fixed rod and piston plate, causing the piston plate to move and suck in the gas inside the suction cup through the pipe, increasing the suction force between the suction cup and the wind turbine hub and preventing the wind turbine hub from moving further at the bottom of the suction cup. At the same time, the piston plate squeezes the liquid inside the cylinder and sprays it out from the nozzle, which further increases the sealing of the bottom of the suction cup. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 This is a schematic diagram showing the position and structure of the telescopic device and the load-bearing ring in one embodiment of the present invention; Figure 3 This is a schematic diagram showing the positional structure of the bending plate and the telescopic frame in one embodiment of the present invention; Figure 4 This is a schematic diagram showing the positional structure of the hydraulic device and the L-shaped frame in one embodiment of the present invention; Figure 5 This is a schematic diagram showing the positional structure of the L-shaped frame and the rubber wheel in one embodiment of the present invention; Figure 6 This is a schematic diagram of the positional structure of the lifting frame and the trapezoidal block in one embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of a hollow cylinder in one embodiment of the present invention; Figure 8 This is a schematic diagram of the positional structure of the arc-shaped plate and the arc-shaped slide rail in one embodiment of the present invention.

[0017] Explanation of key figure labels: 1. Base; 2. Fan hub; 3. Support frame; 4. Telescopic device; 5. Load-bearing ring; 6. Arc-shaped slide rail; 7. Lifting frame; 81. Hydraulic device; 82. Hollow cylinder; 83. Suction cup; 84. Ring piston; 91. L-shaped frame; 92. Rubber wheel; 93. Push block; 94. L-shaped plate; 95. Ring block; 96. Arc-shaped plate; 97. Trapezoidal block; 98. Arc-shaped block; 101. Bending plate; 102. Telescopic frame; 103. Connecting rod; 104. Fixing block; 105. Limiting rod; 106. Cylinder; 107. Piston plate; 108. Nozzle. Detailed Implementation

[0018] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0019] like Figure 1 - Figure 8 As shown, one embodiment of the present invention is: a wind turbine component hoisting auxiliary device, comprising: a base 1, a wind turbine hub 2 disposed on the top of the base 1, a support frame 3 disposed on the top of the wind turbine hub 2, a telescopic device 4 fixedly installed at the bottom of the support frame 3, a load-bearing ring 5 fixedly installed at the output end of the telescopic device 4, an arc-shaped slide rail 6 fixedly installed inside the support frame 3, a lifting frame 7 fixedly installed at the moving end of the arc-shaped slide rail 6, a hydraulic device 81 fixedly installed on the inner wall of the support frame 3, a hollow cylinder 82 fixedly installed at the bottom of the output end of the hydraulic device 81, an annular piston 84 slidably installed on the inner wall of the hollow cylinder 82, a suction cup 83 fixedly installed at the bottom of the annular piston 84 via a connecting rod, and the bottom of the suction cup 83 communicating with the bottom of the annular piston 84 via a hose to prevent the wind turbine hub 2 from detaching from the load-bearing ring 5, and simultaneously causing the suction cup 83 to adhere to the top of the wind turbine hub 2, preventing the position of the wind turbine hub 2 from shifting off the center and affecting subsequent installation.

[0020] A reset component is provided between the annular piston 84 and the hollow cylinder 82. The reset component is used to support the annular piston 84 and to reset the annular piston 84. The suction cup 83 is located at the top of the fan hub 2.

[0021] In this embodiment, when the wind turbine hub 2 needs to be hoisted, first place the wind turbine hub 2 on top of the base 1, then hoist the lifting frame 7 and support frame 3 onto the top of the wind turbine hub 2, aligning the load-bearing ring 5 with the three positions of the wind turbine hub 2. Next, activate the telescopic device 4. The output end of the telescopic device 4 will drive the load-bearing ring 5 to move towards the wind turbine hub 2, allowing the wind turbine hub 2 to fit inside the load-bearing ring 5. Then, activate the hydraulic device 81. The output end of the hydraulic device 81 will drive the hollow cylinder 82 downward. The downward movement of the hollow cylinder 82 will drive the annular piston 84 and connecting rod downward. The downward movement of the connecting rod will drive the suction cup 83 downward. The downward movement of the suction cup 83 will make it fit against the top of the wind turbine hub 2. When the output end of the hydraulic device 81 continues to move downward, the reaction force will... The support frame 3, telescopic device 4, and load-bearing ring 5 are pushed upwards, so that the bottom of the inner wall of the load-bearing ring 5 is tightly fitted with the fan hub 2. At the same time, the hydraulic device 81 and suction cup 83 will squeeze the annular piston 84, so that the suction cup 83 will push the connecting rod and the annular piston 84 to move upwards inside the hollow cylinder 82. The upward push of the annular piston 84 will create a negative pressure at the bottom of the hollow cylinder 82. The hollow cylinder 82 will suck air from the bottom of the suction cup 83 through the hose, thereby increasing the effect of the suction cup 83 adhering to the fan hub 2. Then, the support frame 3 and the fan hub 2 are lifted by the lifting frame 7. When the fan hub 2 needs to be installed, the lifting frame 7 can be driven to slide on the arc-shaped slide rail 6, thereby adjusting the rotation angle of the fan hub 2 for convenient subsequent installation. Please see Figure 1 - Figure 8 Based on the above embodiments, in another embodiment of the present invention, a detection component is provided on the surface of the hydraulic device 81. The detection component includes an L-shaped frame 91, which is fixedly installed on the circumferential surface of the output end of the hydraulic device 81. A rubber wheel 92 is rotatably installed inside the L-shaped frame 91, and a push block 93 is fixedly installed on the rotation shaft of the rubber wheel 92. An L-shaped plate 94 is attached to the surface of the L-shaped frame 91, and a displacement sensor is provided inside the L-shaped frame 91. The displacement sensor detects the rotation of the rubber wheel 92, and the displacement of the fan hub 2 can be determined by the rotation angle of the rubber wheel 92.

[0022] An arc-shaped block 98 is fixedly installed on the top of the L-shaped plate 94, an annular block 95 is slidably installed on the outer wall of the hydraulic device 81, an arc-shaped plate 96 is fixedly installed on the top of the annular block 95, a trapezoidal block 97 is slidably passed through the bottom of the lifting frame 7, and an inclined block is fixedly installed on the top of the arc-shaped plate 96 to prevent the fan hub 2 from continuing to rotate after its position shifts, which would cause the rotation angle to be inconsistent with the actual rotation angle.

[0023] The push block 93 contacts the L-shaped plate 94, causing the push block 93 to rotate and push the L-shaped plate 94 to move. The L-shaped plate 94 slides through the outer wall of the hydraulic device 81, preventing the L-shaped plate 94 from moving up and down, while also supporting the L-shaped plate 94. The bottom and edge of the annular block 95 are both arc-shaped. The bottom of the annular block 95 contacts the arc-shaped block 98. The arc-shaped plate 96 is slidably connected to the inner wall of the arc-shaped slide rail 6. The arc-shaped slide rail 6 can support the arc-shaped plate 96, making the movement of the arc-shaped plate 96 more stable. A first spring is installed between the trapezoidal block 97 and the inside of the lifting frame 7. The first spring can support the trapezoidal block 97, allowing the trapezoidal block 97 to move up and down within a range. The top of the inclined block is arc-shaped.

[0024] The surface of the support frame 3 is provided with a limiting component, which includes a bending plate 101. The bending plate 101 is slidably installed on the surface of the support frame 3. The bottom of the bending plate 101 is hinged to a telescopic frame 102. The free end of the telescopic frame 102 is fixedly installed with a connecting rod 103. The top of the load-bearing ring 5 is fixedly installed with a fixing block 104 to prevent the load-bearing ring 5 from loosening the wind turbine hub 2 and causing danger during hoisting if the position of the wind turbine hub 2 is offset.

[0025] A cylinder 106 is fixedly installed on the top of the L-shaped frame 91. The left side of the cylinder 106 is connected to the bottom of the inner wall of the hollow cylinder 82 through a pipe. A piston plate 107 is slidably installed inside the cylinder 106. A fixing rod is fixedly installed on the right side of the piston plate 107. The fixing rod slides through the cylinder 106. A nozzle 108 is installed at the bottom of the cylinder 106 through a metal pipe. A limiting rod 105 is fixedly installed on the surface of the bending plate 101 to increase the adsorption force between the suction cup 83 and the fan hub 2, preventing the fan hub 2 from moving further at the bottom of the suction cup 83. At the same time, the piston plate 107 will squeeze the liquid inside the cylinder 106 and spray it out from the nozzle 108. The sprayed liquid will further increase the sealing of the bottom of the suction cup 83.

[0026] A second spring is installed between the bending plate 101 and the support frame 3. The second spring can drive the bending plate 101 to return to its original position. The top of the bending plate 101 contacts the edge of the annular block 95. The telescopic frame 102 slides through the support frame 3, so that the support frame 3 restricts the telescopic frame 102 to only move up and down. A negative pressure chamber is installed on the right side of the piston plate 107. A return spring is installed between the right side of the piston plate 107 and the cylinder 106. The return spring is used to improve the effect of the piston plate 107 moving to the right. Liquid is installed inside the negative pressure chamber. The limiting rod 105 contacts the fixed rod. A pressure relief valve is installed inside the metal tube. The pressure relief valve can prevent liquid leakage. Only when the liquid is squeezed by a certain pressure can it be sprayed out from the nozzle 108 through the pressure relief valve.

[0027] In this embodiment, as the output end of the hydraulic device 81 moves downward, it causes the L-shaped frame 91 and the rubber wheel 92 to move downward. The rubber wheel 92 also fits tightly against the top of the fan hub 2. When the fan hub 2 is hoisted and rotated, the fan hub 2 is displaced at the bottom of the suction cup 83. This displacement of the fan hub 2, through friction, causes the rubber wheel 92 to rotate. When the rubber wheel 92 rotates, it causes the pushing block 93 to rotate. When the pushing block 93 rotates, it contacts the L-shaped plate 94 and pushes the L-shaped plate 94 to move. When the L-shaped plate 94 moves, it causes the arc block 98 to move. When the arc block 98 moves, it contacts the inclined surface at the bottom of the annular block 95, causing the arc block 98 to push the annular block 95 to move upward. The upward movement of the annular block 95 causes the arc plate 96 to move upward. The upward movement of the arc plate 96 will cause the inclined block to move upward. The upward movement of the inclined block will be higher than the bottom position of the trapezoidal block 97. When the lifting frame 7 moves, it will also cause the trapezoidal block 97 to move. The movement of the trapezoidal block 97 will be limited by the one-way limit of the inclined block. When the lifting frame 7 and the trapezoidal block 97 move, the right angle surface of the trapezoidal block 97 will contact the right angle surface of the inclined block, so that the arc slide rail 6 cannot drive the lifting frame 7 and the trapezoidal block 97 to move. However, when the lifting frame 7 and the trapezoidal block 97 move in the opposite direction, the bottom inclined surface of the trapezoidal block 97 will contact the top inclined surface of the inclined block. When the trapezoidal block 97 moves in the opposite direction, the top inclined surface of the inclined block will push the trapezoidal block 97 upward and over the inclined block, so that the reverse movement of the lifting frame 7 and the trapezoidal block 97 will not be blocked, thus preventing the wind turbine hub 2 from shifting its position during the flipping process and being unable to recover. When the annular block 95 moves upward, its edge will press against the curved plate 101, causing the curved plate 101 to slide on the support frame 3. The movement of the curved plate 101 will cause the telescopic frame 102 to slide downward. The downward movement of the telescopic frame 102 will cause the connecting rod 103 to move downward. The downward movement of the connecting rod 103 will rotate the fixed block 104, preventing the telescopic device 4 from moving the load-bearing ring 5 and the fixed block 104 away from the wind turbine hub 2. This avoids the wind turbine hub 2 from shifting during hoisting and the load-bearing ring 5 from accidentally loosening the wind turbine hub 2, which could cause danger. At the same time, the curved plate 101 When moving, it will cause the limiting rod 105 to move as well. The movement of the limiting rod 105 will release the restriction on the fixed rod and the piston plate 107. When the piston plate 107 is in the negative pressure chamber on the right side, it will cause the piston plate 107 to move to the right. When the piston plate 107 moves to the right, the left side of the piston plate 107 will draw air from the inside of the hollow cylinder 82 through the pipe, which will increase the adsorption effect between the suction cup 83 and the fan hub 2. At the same time, when the piston plate 107 moves to the right, it will squeeze the liquid inside the negative pressure chamber and spray it from the nozzle 108 through the metal pipe to the contact position between the suction cup 83 and the fan hub 2, which will increase the sealing between the suction cup 83 and the fan hub 2.

[0028] It is understood that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above are merely preferred embodiments of this application, and only specifically describe the technical principles of this application. These descriptions are only for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, as well as other specific embodiments of this application that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of this application.

Claims

1. A wind turbine component hoisting auxiliary device, characterized in that, include: A base (1) is provided with a fan hub (2) on the top of the base (1). A support frame (3) is provided on the top of the fan hub (2). A telescopic device (4) is fixedly installed at the bottom of the support frame (3). A load-bearing ring (5) is fixedly installed at the output end of the telescopic device (4). An arc-shaped slide rail (6) is fixedly installed inside the support frame (3). A lifting frame (7) is fixedly installed at the moving end of the arc-shaped slide rail (6). A hydraulic device (81) is fixedly installed on the inner wall of the support frame (3). A hollow cylinder (82) is fixedly installed at the bottom of the output end of the hydraulic device (81). An annular piston (84) is slidably installed on the inner wall of the hollow cylinder (82). A suction cup (83) is fixedly installed at the bottom of the annular piston (84) through a connecting rod. The bottom of the suction cup (83) is connected to the bottom of the annular piston (84) through a hose.

2. The wind turbine component hoisting auxiliary device according to claim 1, characterized in that, A reset component is provided between the annular piston (84) and the interior of the hollow cylinder (82), and the suction cup (83) is located at the top of the fan hub (2).

3. The wind turbine component hoisting auxiliary device according to claim 2, characterized in that, The surface of the hydraulic device (81) is provided with a detection component, which includes an L-shaped frame (91). The L-shaped frame (91) is fixedly installed on the circumferential surface of the output end of the hydraulic device (81). A rubber wheel (92) is rotatably installed inside the L-shaped frame (91). A push block (93) is fixedly installed on the rotating shaft of the rubber wheel (92). An L-shaped plate (94) is attached to the surface of the L-shaped frame (91).

4. The wind turbine component hoisting auxiliary device according to claim 3, characterized in that, An arc-shaped block (98) is fixedly installed on the top of the L-shaped plate (94), an annular block (95) is slidably installed on the outer wall of the hydraulic device (81), an arc-shaped plate (96) is fixedly installed on the top of the annular block (95), a trapezoidal block (97) is slidably passed through the bottom of the lifting frame (7), and an inclined block is fixedly installed on the top of the arc-shaped plate (96).

5. The wind turbine component hoisting auxiliary device according to claim 4, characterized in that, The push block (93) contacts the L-shaped plate (94), the L-shaped plate (94) slides through the outer wall of the hydraulic device (81), the bottom and edge of the annular block (95) are both arc-shaped, the bottom of the annular block (95) contacts the arc-shaped block (98), the arc-shaped plate (96) is slidably connected to the inner wall of the arc-shaped slide rail (6), a No. 1 spring is provided between the trapezoidal block (97) and the inside of the lifting frame (7), and the top of the inclined block is arc-shaped.

6. The wind turbine component hoisting auxiliary device according to claim 5, characterized in that, The surface of the support frame (3) is provided with a limiting component, the limiting component including a bending plate (101), the bending plate (101) is slidably mounted on the surface of the support frame (3), the bottom of the bending plate (101) is hinged to a telescopic frame (102), the free end of the telescopic frame (102) is fixedly mounted with a connecting rod (103), and the top of the load-bearing ring (5) is fixedly mounted with a fixing block (104).

7. The wind turbine component hoisting auxiliary device according to claim 6, characterized in that, A cylinder (106) is fixedly installed on the top of the L-shaped frame (91). The left side of the cylinder (106) is connected to the bottom of the inner wall of the hollow cylinder (82) through a pipe. A piston plate (107) is slidably installed inside the cylinder (106). A fixing rod is fixedly installed on the right side of the piston plate (107). The fixing rod slides through the cylinder (106). A nozzle (108) is installed at the bottom of the cylinder (106) through a metal pipe. A limiting rod (105) is fixedly installed on the surface of the curved plate (101).

8. The wind turbine component hoisting auxiliary device according to claim 7, characterized in that, A second spring is provided between the bending plate (101) and the support frame (3). The top of the bending plate (101) contacts the edge of the annular block (95). The telescopic frame (102) slides through the support frame (3). A negative pressure chamber is provided on the right side of the piston plate (107). Liquid is provided inside the negative pressure chamber. The limiting rod (105) contacts the fixing rod. A pressure relief valve is provided inside the metal tube.

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