Fan hoisting device with safety protection structure

Abstract

The invention relates to the field of fan hoisting, in particular to a fan hoisting device with a safety protection structure, which comprises an outer hoisting frame. In the process of driving the fixed box to move, the internal thread sleeves can be adjusted according to the diameter of a hole site, and pressure is applied to the positioning plate and the fixed plate through the second spring in the process, so that the whole device is moved to the position of the center of a fan tower body, and the four groups of internal thread sleeves can accurately find the hole site; power conversion is completed through movement of a bearing plate, at the moment, a second spring enables a screw rod and an internal thread block to be self-locked, meanwhile, an internal thread sleeve moves, due to position self-locking of a fixing box, hole position dislocation is avoided, the thread sleeve is matched with a fixing frame to complete fixed connection, and through the structure, hole position positioning can be automatically completed in the locking process; and through switching of positioning and power, a dual self-locking structure is completed, connection stability is guaranteed, manual climbing and manual disassembly are not needed subsequently, and the operation difficulty and danger are reduced.

Description

Technical Field

[0001] The invention relates to the field of fan hoisting, and in particular to a fan hoisting device with a safety protection structure. Background Art

[0002] The working principle of a wind turbine is to use wind power to drive the wind turbine blades to rotate, and then use the speed increaser to increase the rotational speed, thereby driving the generator to generate electricity. Specifically, when the wind blows the wind wheel, the kinetic energy of the wind wheel is converted into the mechanical energy of the wind wheel shaft, and the generator rotates driven by the wind wheel shaft, converting the mechanical energy into electrical energy. In order for the wind turbine to operate better, the wind turbine unit is generally installed above the tower after the wind turbine tower is built, thereby ensuring the normal operation of the wind turbine.

[0003] The Chinese patent application with announcement number CN204873409U is a wind turbine tower erection lifting rigging, which is used in the lifting process of wind turbine generator sets. The wind turbine tower erection lifting rigging includes a tower and a flange with threaded holes on the side, and is characterized in that at least four connecting and fixing devices are evenly and symmetrically arranged on the flange, and the connecting and fixing devices are composed of a fixing plate for connecting to the flange and a lifting ring for connecting to the steel wire. The beneficial effect of the utility model is that the length of the steel wire rope around the pulley also changes continuously during the lifting process, so that the force of the steel wire rope is consistent and the length change is uniform, which ensures the installation of the lifting and improves the efficiency of the lifting.

[0004] The existing wind turbine tower body is cylindrical, and as the height increases, the diameter of the cylinder gradually decreases, and each group of cylinders is connected by a flange fixing method. Since each group of cylindrical tower bodies needs to be separately built by hoisting during the construction process, the existing hoisting method is to fix the hanger with the flange connection hole of the tower body, and to fix the hanger and the crane by telescopic extension, so that the cylindrical tower body can be hoisted and lifted by the crane. However, in this hoisting method, after a section of the tower body is installed, it is necessary to manually climb to the corresponding position for disassembly. Since it is difficult to land in the high-altitude operation itself, and in order to ensure the safety of the hoisting, the bolts and nuts of the hanger are generally connected very tightly, making it difficult to disassemble the hanger and making the safety of the operator unable to be guaranteed. In addition, during the use of the hanger, since it needs to be cross-positioned and installed, when hoisting the cylindrical tower body with a larger bottom, due to its large diameter and more flange holes, manual visual inspection can no longer ensure that the corresponding two groups of hangers are at opposite corners, so it is necessary to manually measure it, which greatly reduces the hoisting efficiency of the tower body.

[0005] Therefore, it is necessary to invent a fan hoisting device with a safety protection structure to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a wind turbine lifting device with a safety protection structure, in which the adjustment component is used to adjust and the positioning component is used to position the device as a whole. At this time, the power is switched by the regulating component, and the device is fixed to the tower body by the fixing component. At the same time, the adjusting component and the fixing component are self-locking to achieve double insurance, and no manual disassembly is required subsequently, so as to solve the problems of low efficiency and high risk of the hoist during the installation and disassembly process of the tower body in the prior art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a wind turbine hoisting device with a safety protection structure, comprising an outer hoisting frame, an inner hoisting frame is arranged inside the outer hoisting frame, four sets of connecting frames are installed between the inner hoisting frame and the outer hoisting frame, a rope sling is installed above the outer hoisting frame, and the rope sling and the hoist rope are fixed; The adjusting assembly arranged between the inner hanging frame and the outer hanging frame comprises a screw rod, the screw rod is rotatably connected between the inner hanging frame and the outer hanging frame, and four groups of screw rods are arranged, and the screw rods and each group of connecting frames are arranged in a cross direction, and an internal thread block is screwed on the screw rod; The fixing assembly arranged below the internal thread block includes a fixing box, the fixing box is arranged below the internal thread block, a bolt is rotatably connected in the fixing box, an internal thread sleeve is threadedly sleeved on the bolt, and the internal thread sleeve is connected to the lower inner wall of the fixing box by a limited penetration, and the internal thread sleeve is penetrated by the flange connection hole of the wind turbine tower body; The positioning assembly arranged below the outer hanging frame includes a positioning plate, the positioning plate is rotatably connected below the outer hanging frame, and four groups of positioning plates are arranged, and each group of positioning plates and the corresponding internal thread block are arranged in the same direction; The regulating component arranged in the inner hanging frame includes a bearing plate, which is arranged in the inner hanging frame and has two groups arranged in sequence up and down. A plurality of groups of limit blocks are installed around the two groups of bearing plates. A plurality of groups of limit grooves are opened in sequence up and down on the inner wall of the inner hanging frame, and the limit grooves are slidably connected with the corresponding limit blocks.

[0008] As a preferred solution of the present invention, the adjusting assembly also includes a connecting plate, which is installed below the internal thread block and fixedly connected to the fixed box below. Sliders are symmetrically installed above the connecting plate. Slide rods are connected through the two groups of slides, and the slide rods are installed between the inner hanging frame and the outer hanging frame. A secondary bevel gear is connected to one side of the screw rod, and the secondary bevel gear is arranged inside the inner hanging frame.

[0009] As a preferred solution of the present invention, the fixing assembly also includes a fixing frame, which is installed at the bottom of the fixing box, and the lower part of the inner wall of the fixing frame is connected through the lower part of the internal threaded sleeve, and the fixing frame is embedded in the inner edge of the wind turbine tower body, and a barrel shaft 1 is rotatably connected to the inner wall of the fixing box, and the barrel shaft 1 is connected through the inner wall of the fixing box, a secondary bevel gear 2 is sleeved and fixed on the barrel shaft 1, and the secondary bevel gear 2 is arranged in the fixing box.

[0010] As a preferred solution of the present invention, a secondary bevel gear three is meshed on one side of the secondary bevel gear two, and the secondary bevel gear three is fixedly connected to the top of the bolt, a cylinder shaft two is connected through the inner lifting frame, a secondary bevel gear four is installed on one side of the cylinder shaft two, and the secondary bevel gear four is arranged in the inner lifting frame, and the secondary bevel gear four is located directly below the secondary bevel gear one.

[0011] As a preferred solution of the present invention, a guide groove is provided on the inner wall of the second cylindrical shaft, a guide block is slidably connected in the guide groove, and the guide block is fixedly connected to the outer side of the first cylindrical shaft, and the first cylindrical shaft is sleeved with the second cylindrical shaft, a connecting rod is installed on the inner wall of the second cylindrical shaft, and the connecting rod is connected through the inside of the first cylindrical shaft, a spring one is sleeved on the connecting rod, and the two sides of the spring one are respectively in contact with the inner walls of the first cylindrical shaft and the second cylindrical shaft.

[0012] As a preferred solution of the present invention, the positioning assembly also includes a through groove, which is opened inside the positioning plate, and sliding grooves are symmetrically opened on the inner wall of the through groove. A positioning push rod is installed on the side of the fixed box away from the cylinder axis, and a sliding sleeve is sleeved on the positioning push rod, and the positioning push rod and the through groove are arranged to penetrate each other.

[0013] As a preferred solution of the present invention, connecting blocks are symmetrically installed on the sliding sleeve, and the connecting blocks are slidably connected to the corresponding sliding grooves, a second spring is sleeved on the positioning push rod, and the two sides of the second spring are respectively fitted with the sliding sleeve and the fixed box, a fixed plate is rotatably connected under the positioning plate, and multiple groups of universal ball bearings are rotatably installed on one side of the fixed plate, and the universal ball bearings are fitted with the outer surface of the fan tower.

[0014] As a preferred solution of the present invention, the regulating component also includes an electric push rod, which is installed in each group of limit grooves located below, and the output end of the electric push rod is fixedly connected to the limit block on one side of the supporting plate below, and a main bevel gear 1 is rotatably connected to a group of the supporting plates, and the main bevel gear 1 is located below each group of secondary bevel gear 1.

[0015] As a preferred solution of the present invention, another group of the carrying plates is installed and connected with a main bevel gear 2, and the main bevel gear 2 is located above each group of auxiliary bevel gears 4, a servo motor is installed on one group of the carrying plates, and the output end of the servo motor is connected to the main bevel gear 1 and the main bevel gear 2, and the servo motor and the electric push rod can be controlled using a remote terminal.

[0016] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: By driving the fixed box to move, the internal threaded sleeve can be adjusted according to the diameter of the hole, and in this process, pressure is applied to the positioning plate and the fixed plate through Spring 2, so that the device as a whole moves to the center of the wind turbine tower, so that the four groups of internal threaded sleeves can accurately find the hole, and the movement of the bearing plate can complete the power conversion. At this time, Spring 2 enables the screw rod and the internal threaded block to complete self-locking, and the internal threaded sleeve moves at the same time. Due to the self-locking position of the fixed box, the hole position is avoided from being misaligned, and the threaded sleeve cooperates with the fixed frame to complete the fixed connection. This structure can automatically complete the positioning of the hole during the locking process, and through the switching of positioning and power, a double self-locking structure is completed to ensure the stability of the connection, and no manual climbing and manual disassembly is required later, which reduces the difficulty and danger of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention in coordination with the wind turbine tower body; Figure 2 It is a schematic diagram of the overall structure of the present invention connected with the hole position of the wind turbine tower body; Figure 3 It is a schematic diagram of the overall layout structure of the present invention; Figure 4 It is a schematic diagram of the overall bottom structure of the present invention; Figure 5 It is a schematic diagram of the internal layout structure of the inner hanging frame of the present invention; Figure 6 It is a schematic diagram of the second planing structure of the cylindrical shaft of the present invention; Figure 7 It is a schematic diagram of the planing structure of the positioning plate of the present invention; Figure 8 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Fig. 9 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Fig.10 For the present invention Figure 5 The enlarged structural diagram at C in the middle; Fig.11 For the present invention Figure 5 The enlarged structural diagram at D in the middle; Fig.12 For the present invention Figure 6 The enlarged structural diagram at E in the middle; Fig.13 For the present invention Figure 7 Enlarged structural diagram at F in the middle.

[0019] Description of reference numerals: 001, external hoisting frame; 101, internal hoisting frame; 102, connecting frame; 103, rope sling; 002, adjustment assembly; 201, screw; 202, internal thread block; 203, connecting plate; 204, sliding rod; 205, slider; 206, secondary bevel gear 1; 003, fixing assembly; 301, fixing box; 302, bolt; 303, internal thread sleeve; 304, fixing frame; 305, barrel shaft 1; 306, secondary bevel gear 2; 307, secondary bevel gear 3; 308, barrel shaft 2; 309, secondary bevel gear 4; 31 0, connecting rod; 311, spring one; 312, guide groove; 313, guide block; 004, positioning assembly; 401, positioning plate; 402, through groove; 403, slide groove; 404, positioning push rod; 405, sliding sleeve; 406, connecting block; 407, spring two; 408, fixing plate; 409, universal ball; 005, regulating assembly; 501, bearing plate; 502, limit block; 503, limit groove; 504, electric push rod; 505, main bevel gear one; 506, main bevel gear two; 507, servo motor. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] The present invention provides Figure 1-13 A wind turbine hoisting device with a safety protection structure shown in the figure comprises an outer hoisting frame 001, an inner hoisting frame 101 is arranged inside the outer hoisting frame 001, four sets of connecting frames 102 are installed between the inner hoisting frame 101 and the outer hoisting frame 001, a rope sling 103 is installed above the outer hoisting frame 001, and the rope sling 103 and the hoisting rope are fixed; The adjustment assembly 002 disposed between the inner hanging frame 101 and the outer hanging frame 001 includes a screw rod 201, which is rotatably connected between the inner hanging frame 101 and the outer hanging frame 001, and four groups of screw rods 201 are provided, and the screw rods 201 and each group of connecting frames 102 are arranged in a cross direction, and an internal thread block 202 is screwed on the screw rod 201; The rotation of the screw rod 201 can drive the internal thread block 202 to move between the internal hanging frame 101 and the external hanging frame 001, thereby realizing corresponding adjustment according to the hole diameter of the wind turbine tower body.

[0022] The fixing assembly 003 arranged below the internal thread block 202 includes a fixing box 301, which is arranged below the internal thread block 202. A bolt 302 is rotatably connected in the fixing box 301, and an internal thread sleeve 303 is threadedly sleeved on the bolt 302. The internal thread sleeve 303 is connected to the lower inner wall of the fixing box 301 by a limited penetration, and the internal thread sleeve 303 is penetrated by the flange connection hole of the wind turbine tower body; By rotating the bolt 302 , the bolt 302 can drive the internal thread sleeve 303 to disengage from the flange connection hole of the wind turbine tower body, thereby realizing the installation and disassembly of the internal thread sleeve 303 and the wind turbine tower body.

[0023] The positioning assembly 004 disposed below the outer hanging frame 001 includes a positioning plate 401, which is rotatably connected below the outer hanging frame 001, and there are four groups of positioning plates 401, and each group of positioning plates 401 is disposed in the same direction as the corresponding internal thread block 202; The regulating component 005 arranged in the inner hanging frame 101 includes a load-bearing plate 501, which is arranged in the inner hanging frame 101, and two groups of load-bearing plates are arranged in sequence up and down. A plurality of groups of limit blocks 502 are installed around the two groups of load-bearing plates 501, and a plurality of groups of limit grooves 503 are opened in sequence up and down on the inner wall of the inner hanging frame 101, and the limit grooves 503 are slidably connected with the corresponding limit blocks 502.

[0024] Through the cooperation between the limiting groove 503 and the limiting block 502 , the position of the bearing plate 501 in the inner hanging frame 101 can be stably slid up and down.

[0025] Furthermore, in the above structure, the adjustment component 002 also includes a connecting plate 203, which is installed below the internal thread block 202 and fixedly connected to the fixed box 301 below. Sliders 205 are symmetrically installed above the connecting plate 203. Slide rods 204 are connected through the two groups of slides 205, and the slide rods 204 are installed between the inner hanging frame 101 and the outer hanging frame 001. A secondary bevel gear 206 is axially connected to one side of the screw rod 201, and the secondary bevel gear 206 is arranged inside the inner hanging frame 101.

[0026] Through the cooperation between the slider 205 and the slide rod 204 , the connecting plate 203 can run stably under the drive of the internal thread block 202 .

[0027] Furthermore, in the above structure, the fixing component 003 also includes a fixing frame 304, which is installed at the bottom of the fixing box 301, and the lower part of the inner wall of the fixing frame 304 is connected through the lower part of the internal threaded sleeve 303, and the fixing frame 304 is engaged with the inner edge of the wind turbine tower body, and a cylinder shaft 1 305 is rotatably connected to the inner wall of the fixing box 301, and the cylinder shaft 1 305 is connected through the inner wall of the fixing box 301, and a secondary bevel gear 2 306 is sleeved and fixed on the cylinder shaft 1 305, and the secondary bevel gear 2 306 is arranged in the fixing box 301.

[0028] The fixing frame 304 and the internal thread sleeve 303 cooperate to achieve the connection and fixation between the entire device and the tower body.

[0029] Furthermore, in the above structure, a secondary bevel gear three 307 is meshed with one side of the secondary bevel gear two 306, and the secondary bevel gear three 307 is fixedly connected to the top of the bolt 302, a cylinder shaft two 308 is connected through the inner lifting frame 101, a secondary bevel gear four 309 is installed on one side of the cylinder shaft two 308, and the secondary bevel gear four 309 is arranged in the inner lifting frame 101, and the secondary bevel gear four 309 is located directly below the secondary bevel gear one 206.

[0030] Through the cooperation of the secondary bevel gear three 307 and the secondary bevel gear two 306 , the cylinder shaft one 305 can drive the bolt 302 to rotate, thereby completing the driving of the internal thread sleeve 303 .

[0031] Furthermore, in the above structure, a guide groove 312 is provided on the inner wall of the second cylinder shaft 308, a guide block 313 is slidably connected in the guide groove 312, and the guide block 313 is fixedly connected to the outer side of the cylinder shaft 1 305, and the cylinder shaft 1 305 is sleeved with the second cylinder shaft 308, a connecting rod 310 is installed on the inner wall of the second cylinder shaft 308, and the connecting rod 310 is connected through the inside of the cylinder shaft 1 305, a spring 1 311 is sleeved on the connecting rod 310, and the two sides of the spring 1 311 are respectively in contact with the inner walls of the cylinder shaft 1 305 and the cylinder shaft 2 308.

[0032] Through the action of spring 1 311, the positions of auxiliary bevel gear 2 306 and auxiliary bevel gear 4 309 will not change during the movement of fixed box 301. Although the rotational positions of the two themselves are relatively limited, spring 1 311 can further limit this, and the cooperation of guide groove 312 and guide block 313 can make cylinder shaft 1 305 slide in cylinder shaft 2 308 while ensuring that cylinder shaft 2 308 drives cylinder shaft 1 305 to rotate.

[0033] Furthermore, in the above structure, the positioning component 004 also includes a through slot 402, which is opened inside the positioning plate 401, and sliding slots 403 are symmetrically opened on the inner wall of the through slot 402. A positioning push rod 404 is installed on the side of the fixed box 301 away from the cylinder axis 305, and a sliding sleeve 405 is sleeved on the positioning push rod 404, and the positioning push rod 404 and the through slot 402 are arranged to penetrate each other.

[0034] The positioning push rod 404 is pushed to move by the fixed box 301 , so that the positioning push rod 404 can slide along the sliding sleeve 405 .

[0035] Furthermore, in the above structure, a connecting block 406 is symmetrically installed on the sliding sleeve 405, and the connecting block 406 is slidably connected to the corresponding slide groove 403, a spring 2 407 is sleeved on the positioning push rod 404, and the two sides of the spring 2 407 are respectively fitted with the sliding sleeve 405 and the fixed box 301, a fixed plate 408 is rotatably connected below the positioning plate 401, and a plurality of sets of universal ball bearings 409 are rotatably installed on one side of the fixed plate 408, and the universal ball bearings 409 are fitted with the outer surface of the wind turbine tower.

[0036] By moving the positioning push rod 404, the connecting block 406 slides along the slide groove 403, and the positioning plate 401 rotates along the bottom of the external hanging frame 001, so that the fixing plate 408 drives the universal ball 409 to fit the outer surface of the wind turbine tower body, and the universal ball 409 can make the entire device slightly rotated manually after fitting, and with the continuous movement, the spring 2 407 is squeezed. When the positioning push rod 404 stops moving, the reaction force of the spring 2 407 will act on the internal thread block 202 and the screw 201, so that the internal thread block 202 and the screw 201 can be self-locked, and the screw 201 can be prevented from rotating after losing the restriction.

[0037] Furthermore, in the above structure, the regulating component 005 also includes an electric push rod 504, which is installed in each group of limit grooves 503 located below, and the output end of the electric push rod 504 is fixedly connected to the limit block 502 on one side of the supporting plate 501 below, and a group of supporting plates 501 are rotatably connected with a main bevel gear 505, and the main bevel gear 505 is located below each group of secondary bevel gears 206.

[0038] The electric push rod 504 can be used to move the bearing plate 501 downward, so that the main bevel gear 1 505 can cooperate with each group of auxiliary bevel gears 1 206.

[0039] Furthermore, in the above structure, another group of supporting plates 501 is connected to a main bevel gear 2 506, and the main bevel gear 2 506 is located above each group of secondary bevel gear 4 309, a servo motor 507 is installed on one group of supporting plates 501, and the output end of the servo motor 507 is connected to the main bevel gear 1 505 and the main bevel gear 2 506, and the servo motor 507 and the electric push rod 504 can be controlled using a remote terminal.

[0040] By moving the bearing plate 501, the main bevel gear 2 506 is matched with the four sets of auxiliary bevel gears 4 309, and at the same time, the main bevel gear 1 505 can be disengaged from each set of auxiliary bevel gears 1 206, so that the servo motor 507 can independently drive the auxiliary bevel gears 4 309 and the auxiliary bevel gear 1 206 to realize power conversion.

[0041] like Figure 1-13As shown, by moving the fixing box 301 as a whole toward the hoisting frame 101, and connecting the rope sling 103 with the rope of the crane, the whole device is brought close to one end of the cylindrical tower body by the crane. Since the cylindrical tower body is generally placed horizontally on a special base, it is necessary to adjust the overall posture of the device to a position suitable for installation at one end of the cylindrical tower body, and at the same time, bring the whole device close, so that the positioning plate 401 drives the fixing plate 408 to move to the outside of the cylindrical tower body, and at the same time, the fixing frame 304 is flush with the edge of the inner wall of the cylindrical tower body. At this time, the fixing box 301 is driven to move outward, so that the fixing frame 304 The cylindrical tower body is moved closer to the inner wall edge of the cylindrical tower body. During the moving closer process, the positioning push rod 404 slides along the sliding sleeve 405 and with the force of the spring 2 407, the four positioning plates 401 are simultaneously fitted to the outer surface of the cylindrical tower body. At the same time, since the elastic force of the spring 2 407 is the same and the force is also the same, the device as a whole is located at the center of the cylindrical tower body. At the same time, when the fixed frame 304 is fitted with the inner wall edge of the cylindrical tower body, the internal threaded sleeve 303 is just at the position of the flange connection hole of the cylindrical tower body. Due to the large number of connection holes, the device as a whole needs to be manually rotated at this time. It is slightly adjusted to make the internal threaded sleeve 303 just flush with the corresponding hole position, and at this time, the electric push rod 504 is driven to make the bearing plate 501 drive the main bevel gear 1 505 to disengage from the auxiliary bevel gear 1 206, and at the same time, the main bevel gear 2 506 is meshed with the auxiliary bevel gear 4 309. With the subsequent drive, the cylinder shaft 1 305 drives the cylinder shaft 2 308 to rotate, and at the same time, the auxiliary bevel gear 2 306 drives the auxiliary bevel gear 3 307 to rotate, so that the bolt 302 drives the internal threaded sleeve 303 to move into the hole position of the flange connection, thereby completing the connection. At the same time, due to the action of the spring 2 407, the internal thread The block 202 is stressed to prevent the screw 201 from self-rotating at this time, causing the internal threaded sleeve 303 to be misplaced, and the position of the main bevel gear 506 is fixed at this time, so that the position of the bolt 302 is limited, thereby realizing the double insurance of self-locking, and after the lifting is completed, the device is separated from the tower body by resetting, thereby completing the entire lifting work. This structure can automatically complete the positioning of the hole during the locking process, and through the switching of positioning and power, a double self-locking structure is completed to ensure the stability of the connection, and no manual disassembly is required later, reducing the difficulty and danger of operation.

[0042] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wind turbine hoisting device with a safety protection structure, comprising an external hoisting frame (001), characterized in that: An inner hoisting frame (101) is arranged inside the outer hoisting frame (001), four sets of connecting frames (102) are installed between the inner hoisting frame (101) and the outer hoisting frame (001), a rope sling (103) is installed above the outer hoisting frame (001), and the rope sling (103) and the crane rope are fixed; The adjustment assembly (002) disposed between the inner hanging frame (101) and the outer hanging frame (001) comprises a screw rod (201), the screw rod (201) being rotatably connected between the inner hanging frame (101) and the outer hanging frame (001), and four groups of screw rods (201) are provided, and the screw rods (201) and each group of connecting frames (102) are arranged in a cross direction, and an internal thread block (202) is screwed onto the screw rod (201); The fixing assembly (003) disposed below the internal thread block (202) comprises a fixing box (301), the fixing box (301) being disposed below the internal thread block (202), a bolt (302) being rotatably connected inside the fixing box (301), an internal thread sleeve (303) being threadedly sleeved on the bolt (302), and the internal thread sleeve (303) being connected to the fixing box (301) through a limited position below the inner wall, and the internal thread sleeve (303) being connected through a flange connection hole of the wind turbine tower body; The positioning assembly (004) disposed below the external hanging frame (001) comprises a positioning plate (401), wherein the positioning plate (401) is rotatably connected below the external hanging frame (001), and four groups of positioning plates (401) are provided, and each group of positioning plates (401) and the corresponding internal thread block (202) are arranged in the same direction; The regulating component (005) arranged in the inner hanging frame (101) comprises a bearing plate (501), the bearing plate (501) being arranged in the inner hanging frame (101), and two groups of bearing plates (501) being arranged in sequence from top to bottom, a plurality of groups of limit blocks (502) being installed around the two groups of bearing plates (501), a plurality of groups of limit grooves (503) being arranged in sequence from top to bottom on the inner wall of the inner hanging frame (101), and the limit grooves (503) being slidably connected to the corresponding limit blocks (502).

2. The wind turbine hoisting device with a safety protection structure according to claim 1 is characterized in that: The adjustment assembly (002) further comprises a connecting plate (203), wherein the connecting plate (203) is mounted below the internal thread block (202), and the connecting plate (203) is fixedly connected to the fixing box (301) at the bottom, and sliding blocks (205) are symmetrically mounted above the connecting plate (203), and sliding rods (204) are connected through the two groups of sliding blocks (205), and the sliding rods (204) are mounted between the inner hanging frame (101) and the outer hanging frame (001), and a secondary bevel gear (206) is axially connected to one side of the screw rod (201), and the secondary bevel gear (206) is arranged inside the inner hanging frame (101).

3. The wind turbine hoisting device with a safety protection structure according to claim 1 is characterized in that: The fixing assembly (003) further comprises a fixing frame (304), wherein the fixing frame (304) is mounted on the bottom of the fixing box (301), and the lower part of the inner wall of the fixing frame (304) is connected through the lower part of the internal threaded sleeve (303), and the fixing frame (304) is engaged with the inner edge of the wind turbine tower body, a cylinder shaft 1 (305) is rotatably connected to the inner wall of the fixing box (301), and the cylinder shaft 1 (305) is connected through the inner wall of the fixing box (301), a secondary bevel gear 2 (306) is sleeved and fixed on the cylinder shaft 1 (305), and the secondary bevel gear 2 (306) is arranged in the fixing box (301).

4. The wind turbine hoisting device with a safety protection structure according to claim 3 is characterized in that: A secondary bevel gear three (307) is meshed with one side of the secondary bevel gear two (306), and the secondary bevel gear three (307) is fixedly connected to the top of the bolt (302), and a cylinder shaft two (308) is connected through the inner hanging frame (101), and a secondary bevel gear four (309) is installed on one side of the cylinder shaft two (308), and the secondary bevel gear four (309) is arranged in the inner hanging frame (101), and the secondary bevel gear four (309) is located directly below the secondary bevel gear one (206).

5. The wind turbine hoisting device with a safety protection structure according to claim 4 is characterized in that: A guide groove (312) is provided on the inner wall of the second cylindrical shaft (308), a guide block (313) is slidably connected in the guide groove (312), and the guide block (313) is fixedly connected to the outer side of the first cylindrical shaft (305), and the first cylindrical shaft (305) and the second cylindrical shaft (308) are sleeved, a connecting rod (310) is installed on the inner wall of the second cylindrical shaft (308), and the connecting rod (310) is connected to the inside of the first cylindrical shaft (305), and a spring (311) is sleeved on the connecting rod (310), and the two sides of the spring (311) are respectively in contact with the inner walls of the first cylindrical shaft (305) and the second cylindrical shaft (308).

6. The wind turbine hoisting device with a safety protection structure according to claim 4, characterized in that: The positioning assembly (004) further comprises a through slot (402), wherein the through slot (402) is provided inside the positioning plate (401), and sliding slots (403) are symmetrically provided on the inner wall of the through slot (402). A positioning push rod (404) is installed on the side of the fixed box (301) away from the cylinder axis (305), and a sliding sleeve (405) is sleeved on the positioning push rod (404), and the positioning push rod (404) and the through slot (402) are intersected.

7. The wind turbine hoisting device with a safety protection structure according to claim 6, characterized in that: The sliding sleeve (405) is symmetrically mounted with a connecting block (406), and the connecting block (406) is slidably connected to the corresponding slide groove (403); the positioning push rod (404) is sleeved with a second spring (407), and the two sides of the second spring (407) are respectively fitted with the sliding sleeve (405) and the fixed box (301); a fixed plate (408) is rotatably connected below the positioning plate (401); a plurality of sets of universal balls (409) are rotatably mounted on one side of the fixed plate (408), and the universal balls (409) are fitted with the outer surface of the wind turbine tower.

8. The wind turbine hoisting device with a safety protection structure according to claim 7, characterized in that: The regulating component (005) further comprises an electric push rod (504), wherein the electric push rod (504) is installed in each group of limit grooves (503) located below, and an output end of the electric push rod (504) is fixedly connected to a limit block (502) on one side of a supporting plate (501) below, and a main bevel gear 1 (505) is rotatably connected to a group of the supporting plates (501), and the main bevel gear 1 (505) is located below each group of secondary bevel gear 1 (206).

9. The wind turbine hoisting device with a safety protection structure according to claim 8, characterized in that: Another group of the carrier plates (501) is connected to a main bevel gear 2 (506), and the main bevel gear 2 (506) is located above each group of secondary bevel gear 4 (309). A servo motor (507) is installed on one group of the carrier plates (501), and the output end of the servo motor (507) is connected to the main bevel gear 1 (505) and the main bevel gear 2 (506) shafts, and the servo motor (507) and the electric push rod (504) can be controlled using a remote terminal.

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