A convenient regulation offshore wind turbine hoisting construction equipment and method

Abstract

The application relates to a wind turbine hoisting construction technology field, in particular to a marine wind turbine hoisting construction equipment and method convenient to control, which comprises a first hoisting fixing device, a tower drum, a second hoisting fixing device and a fixed connection flange, the fixed connection flange is fixedly connected at the two ends of the tower drum, and the first hoisting fixing device and the second hoisting fixing device are arranged at the bottom end and the upper end of the tower drum respectively. The first hoisting fixing device and the second hoisting fixing device arranged at the two ends of the tower drum can be conveniently dismounted from the tower drum for use, and the hoisting hanging ring in the first hoisting fixing device and the second hoisting fixing device can rotate on the rotating adjusting snap ring, the rotating adjusting snap ring can rotate on the limiting snap ring, so that when the hoisting hanging ring is hooked for hoisting, the hoisting point can be automatically adjusted and rotated, the hoisting point can rotate and adjust, and the tower drum can be fully kept stable.

Description

Technical Field

[0001] This invention relates to the field of wind turbine hoisting technology, specifically to a convenient and adjustable offshore wind turbine hoisting and construction equipment and method. Background Technology

[0002] Offshore wind turbine installation cranes are the core equipment for offshore wind turbine installation and construction. They are typically mounted on offshore equipment ships or jack-up platforms for lifting wind turbine foundations, towers, and the turbine itself. These cranes can be categorized into fixed and rotary types based on their boom operation. However, existing offshore wind turbine installation equipment cannot stably and adaptively adjust the lifting of the tower during operation. Furthermore, the tower is prone to swaying during lifting, and asymmetrical or tilted lifting positions can easily cause the tower to tilt and slide in mid-air, leading to dangerous situations during the lifting process. Therefore, a more easily adjustable offshore wind turbine installation equipment is needed to address these issues. Summary of the Invention

[0003] To address the problems in the existing technology, the present invention provides a convenient and controllable offshore wind turbine hoisting and construction equipment and method.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a conveniently adjustable offshore wind turbine hoisting and construction equipment and method, including a first hoisting and fixing device, a tower, a second hoisting and fixing device and a fixed connection flange. The fixed connection flange is fixedly connected to both ends of the tower. The first hoisting and fixing device and the second hoisting and fixing device are respectively set at the bottom end and the top end of the tower, and the first hoisting and fixing device and the second hoisting and fixing device have the same structure.

[0005] Preferably, both the first and second lifting and fixing devices include a first fixing bolt, a fixing connecting ring, a fixing connecting plate, a second fixing bolt, a fixing connecting crossbar, a limiting retaining ring, a rotating adjusting retaining ring, a lifting hanging ring, and a rotating retaining ring. The fixing connecting rings are symmetrically arranged, and the first fixing bolt is threaded and rotatably inserted into the fixing connecting ring. The fixing connecting crossbar is uniformly fixedly connected to the inner side of the fixing connecting ring. The limiting retaining rings are symmetrically arranged, and the limiting retaining ring is fixedly connected to one end of the fixing connecting crossbar away from the fixing connecting ring. The rotating retaining ring is fixedly connected inside the rotating adjusting retaining ring and rotatably engages inside the limiting retaining ring. The lifting hanging ring is uniformly rotatably mounted on the rotating adjusting retaining ring. The fixing connecting plate is fixedly connected to both ends of the limiting retaining ring, and adjacent fixing connecting plates are fixedly connected by the second fixing bolt.

[0006] Preferably, the second lifting and fixing device is equipped with a lifting stabilizing body.

[0007] Preferably, the hoisting stabilizing body includes a locking groove, a sliding adjustable lifting arm, a first electric push rod, a fixed connecting horizontal plate, a lifting support horizontal plate, a first stabilizing adjustment part, a lifting wire rope, a second stabilizing adjustment part, a main lifting ring, and an adjusting horizontal arm. The locking groove is evenly distributed through both ends of the adjusting horizontal arm. The sliding adjustable lifting arms are symmetrically arranged, and the two sliding adjustable lifting arms are respectively slidably engaged with the adjusting horizontal arm. The first electric push rod is fixedly installed in the middle of the side end of the sliding adjustable lifting arm, and the locking block at the front end of the first electric push rod is inserted into the locking groove. The fixed connecting horizontal plate is fixedly connected to the bottom end of the sliding adjustable lifting arm. The lifting support horizontal plate is fixedly connected to the bottom end of the fixed connecting horizontal plate by bolts. The lifting wire rope is evenly fixedly connected to the bottom end of the lifting support horizontal plate. The first stabilizing adjustment part and the second stabilizing adjustment part are distributed in the middle side end of the adjusting horizontal arm, and the first stabilizing adjustment part and the second stabilizing adjustment part have the same structure. The main lifting ring is fixedly installed in the upper middle part of the adjusting horizontal arm.

[0008] Preferably, a second electric push rod and a third electric push rod are fixedly installed on the upper part of both ends of the adjusting cross arm, and the second electric push rod and the third electric push rod are symmetrically distributed. The front ends of the second electric push rod and the third electric push rod are respectively fixedly connected to the upper two sides of the sliding adjusting lifting arm.

[0009] Preferably, both the first and second stabilizing adjustment units include a support limiting frame, a fourth electric push rod, a sliding support frame, a first motor, a rotating block, a support side plate, a rotating adjusting arm, a mounting block, a rotating bracket, a sliding pressing arm, a fifth electric push rod, and a second motor. The fourth electric push rod is fixedly installed on both sides of the support limiting frame, the sliding support frame is slidably engaged inside the support limiting frame, the front end of the fourth electric push rod is fixedly connected to the sliding support frame, the support side plate is fixedly connected to both sides of the outer end of the sliding support frame, the rotating block is rotatably engaged between the support side plates, and the first motor is fixedly installed on the support side plate. The outer end of the rotating block is fixedly connected to the middle of the rotating block, the rotating adjustment arm is fixedly connected to the bottom end of the rotating block, the mounting block is fixedly connected to the bottom end of the rotating adjustment arm by bolts, the second motor is fixedly mounted on the outer end of the mounting block by a side fixing bracket, the rotating bracket is rotatably clamped on the mounting block, and the driving end of the second motor is fixedly connected to the middle of the side end of the rotating bracket, the sliding extrusion arm is slidably clamped inside the bottom end of the rotating bracket, the fifth electric push rod is fixedly mounted on the middle of the side end of the rotating bracket, and the front end of the fifth electric push rod is fixedly connected to the sliding extrusion arm.

[0010] Preferably, the bottom end of the lifting wire rope is fixedly connected to the lifting ring in the second lifting fixing device by bolts, and the fixing connecting rings in the first and second lifting fixing devices are fixedly connected to the fixing connecting flange by the first fixing bolts.

[0011] Preferably, the support limiting frame is connected to the middle of the side end of the adjusting cross arm, and the pressing end of the first lifting fixing device and the second lifting fixing device is in pressing contact with the side end of the tower.

[0012] Preferably, the bottom end of the sliding extrusion arm is fixedly mounted with an extrusion end.

[0013] A convenient and controllable method for hoisting and installing offshore wind turbines, comprising the following steps:

[0014] S1. Tower cleaning and inspection: Clean the dust, oil and other debris from the surface of the tower, and inspect all threaded holes and the upper flange face of the foundation ring to ensure that they are clean and undamaged.

[0015] S2. Lifting the foundation platform frame: Lift the foundation platform frame into the foundation ring, ensuring that it is concentric with the foundation ring. Use a tape measure to measure the distance between the four vertical I-beams of the foundation platform frame and the foundation ring, ensuring that the distances are equal at all four points.

[0016] S3. Install brackets and electrical equipment: Install the brackets onto the foundation platform and secure them with expansion bolts, lock nuts, and washers. Install the frequency converter, tower base cabinet, and tower base cabinet transformer electrical equipment on the foundation platform, ensuring that the connections are secure and reliable.

[0017] S4. Tower hoisting: Apply a ring of sealant evenly to the flange face of the foundation ring. Place the bolts, nuts, and washers for connecting the tower to the foundation ring into the foundation ring. Use a hoisting tool to lift the first tower section horizontally and then adjust it to a vertical position. Remove the bottom hoisting tool and install guy ropes to guide the tower's descent direction. Align the grounding bolt posts at the two flanges connecting the tower to the foundation ring. After adjusting the hole positions, use bolts, flat washers, and nuts to connect the two flanges from bottom to top. Manually tighten all bolts, and then use an electric wrench and a hydraulic wrench to tighten the bolts in the required sequence. Following the hoisting method for the first tower section, hoist the other tower sections in sequence, ensuring that each tower section is firmly and reliably connected and that the flange gaps meet the requirements.

[0018] The beneficial effects of this invention are:

[0019] I. The first and second lifting fixing devices provided at both ends of the tower of this invention can be easily disassembled and used from the tower. The lifting rings in the first and second lifting fixing devices can rotate on the rotating adjusting rings, and the rotating adjusting rings can rotate on the limiting rings. This allows for automatic adjustment and rotation when the tower is lifted by hooking the lifting rings, ensuring that the lifting point can keep the tower stable. The lifting point can be rotated and adjusted, and the lifting rings are evenly distributed, allowing for convenient hooking and lifting from different positions. During the lifting process, the lifting rings and rotating adjusting rings can rotate on the limiting rings, automatically adjusting the lifting position to maintain balance after lifting.

[0020] II. This invention ensures stable lifting of towers of different diameters. After the tower is adjusted from a horizontal to a vertical position, the fourth electric push rods in the symmetrically distributed first and second stabilizing adjustment sections operate synchronously, controlling the extension and retraction of the sliding support frame. Simultaneously, the first and second electric motors operate; the first motor drives the rotating adjustment arm to rotate, and the second motor drives the rotating clamp to swing. This causes the ends of the sliding compression arms in the first and second stabilizing adjustment sections to be compressed and limited against both sides of the tower, ensuring stable positioning and preventing significant swaying of the tower during vertical lifting. Furthermore, the locking groove and main lifting mechanism... The hook can stably lift the entire hoisting structure. Depending on the thickness of the tower, the first electric push rod is activated to pull the end block out of the locking groove. Then, the second and third electric push rods are activated to drive the symmetrically arranged sliding adjustment lifting arm to slide and adjust its position along the adjusting crossarm. This allows the bottom lifting wire rope to stably hook onto the upper two sides of the tower. The lifting wire rope can also stably hook onto the lifting hook in the second lifting fixing device. This allows the equipment to lift towers of different thicknesses, and it can automatically adjust during the lifting process to ensure that towers of different thicknesses are lifted stably. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0023] Figure 2 This is a side view of the three-dimensional structure of the main body in this invention;

[0024] Figure 3 This is a schematic diagram of the tower structure in this invention;

[0025] Figure 4 This is a schematic diagram of the first lifting and fixing device in this invention;

[0026] Figure 5 This is a schematic diagram of the disassembled structure of the first lifting and fixing device in this invention;

[0027] Figure 6 This is a schematic diagram of the upper structure of the first lifting and fixing device in this invention;

[0028] Figure 7 This is a schematic diagram of the upper structure of the second lifting and fixing device in this invention;

[0029] Figure 8 This is a schematic diagram of the hoisting and stabilizing main structure in this invention;

[0030] Figure 9 This is a schematic diagram of the second stabilizing adjustment unit in the present invention.

[0031] In the diagram: 1-First lifting and fixing device, 2-Tower, 3-Second lifting and fixing device, 4-Fixed connection flange, 5-First fixing bolt, 6-Fixed connection ring, 7-Fixed connection plate, 8-Second fixing bolt, 9-Fixed connection crossbar, 10-Limiting retaining ring, 11-Rotational adjustment retaining ring, 12-Lifting hanging ring, 13-Rotational retaining ring, 14-Lifting stabilizing body, 15-Locking slot, 16-Sliding adjustable lifting boom, 17-First electric push rod, 18-Fixed connection crossbar, 19-Lifting support crossbar, 20 - First stabilizing adjustment unit, 21- Lifting wire rope, 22- Second stabilizing adjustment unit, 23- Main lifting ring, 24- Second electric push rod, 25- Adjusting cross arm, 26- Third electric push rod, 27- Support limiting frame, 28- Fourth electric push rod, 29- Sliding support frame, 30- First electric motor, 31- Rotating block, 32- Support side plate, 33- Rotating adjusting arm, 34- Mounting block, 35- Rotating bracket, 36- Sliding extrusion arm, 37- Extrusion end, 38- Fifth electric push rod, 39- Second electric motor. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] The invention will be further described below with reference to the accompanying drawings.

[0035] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the present invention provides a conveniently adjustable offshore wind turbine hoisting and construction equipment and method, comprising a first hoisting and fixing device 1, a tower 2, a second hoisting and fixing device 3, and a fixed connecting flange 4. The fixed connecting flange 4 is fixedly connected to both ends of the tower 2. The first hoisting and fixing device 1 and the second hoisting and fixing device 3 are respectively located at the bottom and top ends of the tower 2, and the first hoisting and fixing device 1 and the second hoisting and fixing device 3 have the same structure. Both the first hoisting and fixing device 1 and the second hoisting and fixing device 3 include a first fixing bolt 5, a fixed connecting ring 6, a fixed connecting plate 7, a second fixing bolt 8, a fixed connecting crossbar 9, a limiting ring 10, a rotation adjusting ring 11, a hoisting hanging ring 12, and a rotating ring 13. The fixed connecting rings 6 are symmetrically arranged, and the first fixing bolts 5 are threaded and rotatably inserted into the fixed connecting rings 6. The fixed connecting crossbars 9 are evenly fixedly connected to the inner side of the fixed connecting rings 6. The limiting rings 10 are symmetrically arranged and fixedly connected to the end of the fixed connecting crossbar 9 opposite to the fixed connecting rings 6. The movable retaining ring 13 is fixedly connected inside the rotating adjusting retaining ring 11. The rotating retaining ring 13 is rotatably engaged inside the limiting retaining ring 10. The lifting hanging ring 12 is evenly rotated and installed on the rotating adjusting retaining ring 11. The fixed connecting plate 7 is fixedly connected to both ends of the limiting retaining ring 10, and adjacent fixed connecting plates 7 are fixedly connected by the second fixing bolt 8. The fixed connecting rings 6 symmetrically arranged in the first lifting fixing device 1 and the second lifting fixing device 3 are fixedly connected to the fixed connecting flange 4 by the first fixing bolt 5, so that the limiting retaining ring 10, the rotating adjusting retaining ring 11 and the lifting hanging ring 12 are fixedly connected at both ends of the tower 2. The lifting hanging ring 12 on the first lifting fixing device 1 is hooked with the lifting rope. The lifting hanging ring 12 in the second lifting fixing device 3 is fixed to the bottom end of the lifting wire rope 21 by bolts. After connection, the tower 2 is first raised horizontally by the lifting equipment, and then one end of the second lifting fixing device 3 is set to continue lifting so that the tower 2 changes from a horizontal state to a vertical state.

[0036] like Figure 6 , Figure 7 and Figure 8As shown, the second lifting and fixing device 3 is equipped with a lifting stabilizing body 14. The lifting stabilizing body 14 includes a locking groove 15, a sliding adjustable lifting arm 16, a first electric push rod 17, a fixed connecting horizontal plate 18, a lifting support horizontal plate 19, a first stabilizing adjustment part 20, a lifting wire rope 21, a second stabilizing adjustment part 22, a main lifting ring 23, and an adjusting horizontal arm 25. The locking groove 15 is evenly opened through both ends of the adjusting horizontal arm 25. The sliding adjustable lifting arms 16 are symmetrically arranged, and the two sliding adjustable lifting arms 16 are respectively slidably locked onto the adjusting horizontal arm 25. The first electric push rod 17 is fixedly installed in the middle of the side end of the sliding adjustable lifting arm 16, and the locking block at the front end of the first electric push rod 17 is inserted into the inside of the locking groove 15. The fixed connecting horizontal plate 18 is fixedly connected to the bottom end of the sliding adjustable lifting arm 16, and the lifting support horizontal plate 19 is fixedly connected to the bottom end of the fixed connecting horizontal plate 18 by bolts. The lifting wire rope 21 is evenly and fixedly connected to the bottom end of the lifting support horizontal plate 19. The first stabilizing adjustment part 20 and the second stabilizing adjustment part 22 are distributed on the middle side of the adjusting horizontal arm 25, and the first stabilizing adjustment part 20 and the second stabilizing adjustment part 22 have the same structure. The main lifting ring 23 is fixedly installed on the upper middle part of the adjusting horizontal arm 25. The upper parts of both ends of the adjusting horizontal arm 25 are fixedly installed with the second electric push rod 24 and the third electric push rod 26, and the second electric push rod 24 and the third electric push rod 26 are symmetrically distributed. The front ends of the second electric push rod 24 and the third electric push rod 26 are respectively fixedly connected to the upper sides of the sliding adjusting lifting arm 16. After the first electric push rod 17 is activated to pull the end block out of the locking groove 15, the second electric push rod 24 and the third electric push rod 26 are activated to drive the symmetrically arranged sliding adjusting lifting arm 16 to slide and adjust its position along the adjusting horizontal arm 25.

[0037] like Figure 9As shown, both the first stabilizing adjustment unit 20 and the second stabilizing adjustment unit 22 include a support limiting frame 27, a fourth electric push rod 28, a sliding support frame 29, a first motor 30, a rotating block 31, a support side plate 32, a rotating adjustment arm 33, a mounting block 34, a rotating bracket 35, a sliding pressing arm 36, a fifth electric push rod 38, and a second motor 39. The fourth electric push rod 28 is fixedly installed on both sides of the support limiting frame 27. The sliding support frame 29 is slidably engaged inside the support limiting frame 27. The front end of the fourth electric push rod 28 is fixedly connected to the sliding support frame 29. The support side plate 32 is fixedly connected to both sides of the outer end of the sliding support frame 29. The rotating block 31 is rotatably engaged between the support side plates 32. The first motor 30 is fixedly installed on the outer end of the support side plate 32, and the drive end of the first motor 30 is fixedly connected to the middle of the rotating block 31. The rotating adjustment arm 33 is fixedly connected to the rotating block 31. At the bottom end of block 31, mounting block 34 is fixedly connected to the bottom end of rotating adjustment arm 33 by bolts. Second motor 39 is fixedly installed on the outer end of mounting block 34 by side fixing bracket. Rotating bracket 35 is rotatably clamped on mounting block 34, and the drive end of second motor 39 is fixedly connected to the middle of the side end of rotating bracket 35. Sliding compression arm 36 is slidably clamped inside the bottom end of rotating bracket 35. Fifth electric push rod 38 is fixedly installed on the middle of the side end of rotating bracket 35, and the front end of fifth electric push rod 38 is fixedly connected to sliding compression arm 36. First motor 30 can drive rotating adjustment arm 33 to rotate, and second motor 39 can drive rotating bracket 35 to swing, so that the ends of sliding compression arm 36 in first stabilizing adjustment part 20 and second stabilizing adjustment part 22 are squeezed and limited to both sides of tower 2, so that tower 2 is stably limited and does not shake significantly during vertical lifting.

[0038] The bottom end of the lifting wire rope 21 is fixedly connected to the lifting ring 12 in the second lifting device 3 by bolts. The fixed connecting ring 6 in the first lifting device 1 and the second lifting device 3 is fixedly connected to the fixed connecting flange 4 by the first fixing bolt 5, which facilitates disassembly and use.

[0039] The support limit frame 27 is connected to the middle of the side end of the adjusting cross arm 25. The pressing end 37 in the first lifting fixing device 1 and the second lifting fixing device 3 presses against the side end of the tower 2, which plays the role of blocking and limiting, so that the main body 14 is safely and stably hooked and lifted directly by the main lifting ring 23.

[0040] Working principle: During use, the symmetrically arranged fixed connecting rings 6 in the first lifting fixing device 1 and the second lifting fixing device 3 are first fixedly connected to the fixed connecting flange 4 by the first fixing bolt 5. This secures the limiting ring 10, the rotating adjusting ring 11, and the lifting hanging ring 12 at both ends of the tower 2. The lifting hanging ring 12 on the first lifting fixing device 1 is hooked to the lifting rope, and the lifting hanging ring 12 in the second lifting fixing device 3 is fixed to the bottom end of the lifting wire rope 21 by bolts. After connection, the tower is first lifted by the lifting equipment. 2. The tower is raised horizontally, and then one end of the second lifting and fixing device 3 is set to continue lifting so that the tower 2 changes from a horizontal state to a vertical state. During the lifting process, the adjusting ring 11 can be rotated inside the limiting ring 10 by rotating the ring 13, so that the tower 2 can be stabilized after being hooked by the symmetrical lifting ring 12. Even if the hook point is deviated, the adjusting ring 11 and the lifting ring 12 can be rotated and adjusted inside the limiting ring 10, so that the lifting point can lift the tower 2 smoothly and achieve the function of automatic balance adjustment.

[0041] When the tower 2 is adjusted from a horizontal to a vertical position, the fourth electric push rods 28 in the symmetrically distributed first stabilizing adjustment section 20 and second stabilizing adjustment section 22 operate synchronously, controlling the extension and retraction adjustment of the sliding support frame 29. Simultaneously, the first motor 30 and second motor 39 operate. The first motor 30 drives the rotating adjusting arm 33 to rotate, and the second motor 39 drives the rotating clamp 35 to swing. This causes the ends of the sliding compression arms 36 in the first stabilizing adjustment section 20 and second stabilizing adjustment section 22 to be compressed and limited against both sides of the tower 2, ensuring that the tower 2 remains stable and does not sway significantly during vertical lifting. Furthermore, the locking groove 15 and the main lifting ring 23 further stabilize the lifting operation. The main body 14 is stably hooked and lifted. Depending on the thickness of the tower 2, the first electric push rod 17 is activated to pull the end block out of the locking groove 15. Then, the second electric push rod 24 and the third electric push rod 26 are activated to drive the symmetrically arranged sliding adjustment lifting arm 16 to slide and adjust its position along the adjusting cross arm 25. This allows the bottom lifting wire rope 21 to stably hook onto the upper two sides of the tower 2. The lifting wire rope 21 can also stably hook onto the lifting ring 12 in the second lifting fixing device 3. This allows the equipment to lift towers 2 of different thicknesses, and it can automatically adjust during the lifting process to ensure that towers 2 of different thicknesses are lifted stably.

[0042] A convenient and controllable method for hoisting and installing offshore wind turbines, comprising the following steps:

[0043] S1. Tower cleaning and inspection: Clean the dust, oil and other debris from the surface of the tower, and inspect all threaded holes and the upper flange face of the foundation ring to ensure that they are clean and undamaged.

[0044] S2. Lifting the foundation platform frame: Lift the foundation platform frame into the foundation ring, ensuring that it is concentric with the foundation ring. Use a tape measure to measure the distance between the four vertical I-beams of the foundation platform frame and the foundation ring, ensuring that the distances are equal at all four points.

[0045] S3. Install brackets and electrical equipment: Install the brackets onto the foundation platform and secure them with expansion bolts, lock nuts, and washers. Install the frequency converter, tower base cabinet, and tower base cabinet transformer electrical equipment on the foundation platform, ensuring that the connections are secure and reliable.

[0046] S4. Tower Hoisting: Apply a ring of sealant evenly to the flange face of the foundation ring. Place the bolts, nuts, and washers for connecting the tower to the foundation ring into the foundation ring. Use a lifting device to lift the first tower section horizontally and then adjust it to a vertical position. Remove the bottom lifting device, install guy ropes to guide the tower's descent direction, align the grounding bolts at the two flanges connecting the tower to the foundation ring, and adjust the hole positions. Use bolts, flat washers, and nuts to connect the two flanges from bottom to top. Manually tighten all bolts, then use an electric wrench and a hydraulic wrench to tighten the bolts in the required sequence. Following the hoisting method for the first tower section, hoist the other tower sections in sequence, ensuring that each tower section is firmly and reliably connected and that the flange gaps meet the requirements.

[0047] Example 2, based on Example 1, such as Figure 9 As shown, the bottom end of the sliding extrusion arm 36 is fixedly mounted with an extrusion end 37.

[0048] In this embodiment, an extrusion end 37 is fixedly installed at the bottom of the sliding extrusion arm 36 by bolts. The extrusion end 37 can be easily replaced with different shapes and can be adapted to the outside of the tower 2 of different diameters, so as to play a more stable clamping and limiting role.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveniently adjustable offshore wind turbine hoisting and construction equipment, comprising a first hoisting and fixing device (1), a tower (2), a second hoisting and fixing device (3), and a fixed connection flange (4), characterized in that: The fixed connection flange (4) is fixedly connected at both ends of the tower drum (2), the first lifting fixing device (1) and the second lifting fixing device (3) are respectively arranged at the bottom end and the upper end of the tower drum (2), and the first lifting fixing device (1) and the second lifting fixing device (3) are the same in structure, the first lifting fixing device (1) and the second lifting fixing device (3) both comprise a first fixed bolt (5), a fixed connection ring (6), a fixed connection plate (7), a second fixed bolt (8), a fixed connection cross column (9), a limiting snap ring (10), a rotating adjusting snap ring (11), a lifting hanging ring (12) and a rotating snap ring (13), the fixed connection ring (6) is symmetrically arranged, the first fixed bolt (5) is threadedly rotatably inserted into the fixed connection ring (6), the fixed connection cross column (9) is fixedly connected to the inner side of the fixed connection ring (6), the limiting snap ring (10) is symmetrically arranged, the limiting snap ring (10) is fixedly connected to one end of the fixed connection cross column (9) away from the fixed connection ring (6), the rotating snap ring (13) is fixedly connected to the inside of the rotating adjusting snap ring (11), the rotating snap ring (13) is rotatably connected to the inside of the limiting snap ring (10), the lifting hanging ring (12) is rotatably arranged on the rotating adjusting snap ring (11), the fixed connection plate (7) is fixedly connected to both ends of the limiting snap ring (10), and the adjacent fixed connection plates (7) are fixedly connected by the second fixed bolt (8), the second lifting fixing device (3) is provided with a lifting stable main body (14), the lifting stable main body (14) comprises a locking slot (15), a sliding adjusting lifting arm (16), a first electric push rod (17), a fixed connection cross plate (18), a lifting support cross plate (19), a first stable adjusting part (20), a lifting steel wire rope (21), a second stable adjusting part (22), a main lifting hanging ring (23) and an adjusting cross arm (25), the locking slot (15) is evenly and penetratively arranged at both ends of the adjusting cross arm (25), the sliding adjusting lifting arm (16) is symmetrically arranged, and two sliding adjusting lifting arms (16) are slidingly connected to the adjusting cross arm (25), the first electric push rod (17) is fixedly arranged at the middle part of the side end of the sliding adjusting lifting arm (16), the clamping block at the front end of the first electric push rod (17) is inserted into the inside of the locking slot (15), the fixed connection cross plate (18) is fixedly connected to the bottom end of the sliding adjusting lifting arm (16), the lifting support cross plate (19) is fixedly connected to the bottom end of the fixed connection cross plate (18) by means of bolts, the lifting steel wire rope (21) is fixedly connected to the bottom end of the lifting support cross plate (19), the first stable adjusting part (20) and the second stable adjusting part (22) are arranged at the middle side end of the adjusting cross arm (25), and the first stable adjusting part (20) and the second stable adjusting part (22) are the same in structure,The main lifting ring (23) is fixedly installed at the upper middle part of the adjusting cross arm (25).

2. The offshore wind turbine hoisting and construction equipment with convenient control according to claim 1, characterized in that: The upper ends of the adjusting cross arm (25) are fixedly installed with a second electric push rod (24) and a third electric push rod (26), and the second electric push rod (24) and the third electric push rod (26) are symmetrically distributed. The front ends of the second electric push rod (24) and the third electric push rod (26) are respectively fixedly connected to the upper ends of the sliding adjusting lifting arm (16).

3. The offshore wind turbine hoisting and construction equipment with convenient control according to claim 2, characterized in that: The first stabilizing adjustment unit (20) and the second stabilizing adjustment unit (22) both include a support limiting frame (27), a fourth electric push rod (28), a sliding support frame (29), a first motor (30), a rotating block (31), a support side plate (32), a rotating adjustment arm (33), a mounting block (34), a rotating bracket (35), a sliding compression arm (36), a fifth electric push rod (38), and a second motor (39). The fourth electric push rod (28) is fixedly installed on both sides of the support limiting frame (27). The sliding support frame (29) is slidably engaged inside the support limiting frame (27). The front end of the fourth electric push rod (28) is fixedly connected to the sliding support frame (29). The support side plate (32) is fixedly connected to both sides of the outer end of the sliding support frame (29). The rotating block (31) is rotatably engaged between the support side plates (32). The first motor (30) is fixedly engaged with the second motor. The first motor (30) is fixedly installed on the outer end of the support side plate (32), and the driving end of the first motor (30) is fixedly connected to the middle of the rotating block (31). The rotating adjustment arm (33) is fixedly connected to the bottom end of the rotating block (31). The mounting block (34) is fixedly connected to the bottom end of the rotating adjustment arm (33) by bolts. The second motor (39) is fixedly installed on the outer end of the mounting block (34) by a side fixing bracket. The rotating bracket (35) is rotatably clamped on the mounting block (34), and the driving end of the second motor (39) is fixedly connected to the middle of the side end of the rotating bracket (35). The sliding extrusion arm (36) is slidably clamped inside the bottom end of the rotating bracket (35). The fifth electric push rod (38) is fixedly installed in the middle of the side end of the rotating bracket (35), and the front end of the fifth electric push rod (38) is fixedly connected to the sliding extrusion arm (36).

4. The offshore wind turbine hoisting and construction equipment with convenient control according to claim 3, characterized in that: The bottom end of the lifting wire rope (21) is fixedly connected to the lifting ring (12) in the second lifting fixing device (3) by bolts. The fixing ring (6) in the first lifting fixing device (1) and the second lifting fixing device (3) is fixedly connected to the fixing flange (4) by the first fixing bolt (5).

5. The offshore wind turbine hoisting and construction equipment with convenient control according to claim 4, characterized in that: The support limiting frame (27) is connected to the middle of the side end of the adjusting cross arm (25), and the extrusion end (37) of the first lifting fixing device (1) and the second lifting fixing device (3) is in extrusion contact with the side end of the tower (2).

6. The offshore wind turbine hoisting and construction equipment with convenient control according to claim 5, characterized in that: The bottom end of the sliding extrusion arm (36) is fixedly installed with an extrusion end (37).

7. A conveniently adjustable offshore wind turbine hoisting method, employing the conveniently adjustable offshore wind turbine hoisting construction equipment described in claim 6, characterized in that, It includes the following steps: S1. Tower cleaning and inspection: Clean the dust, oil and debris from the surface of the tower, and inspect all threaded holes and the upper flange face of the foundation ring to ensure that they are clean and undamaged. S2. Lifting the foundation platform frame: Lift the foundation platform frame into the foundation ring, ensuring that it is concentric with the foundation ring. Use a tape measure to measure the distance between the four vertical I-beams of the foundation platform frame and the foundation ring, ensuring that the four distances are equal. S3. Install brackets and electrical equipment: Install the brackets onto the foundation platform and secure them with expansion bolts, lock nuts, and washers. Install the frequency converter, tower base cabinet, and tower base cabinet transformer electrical equipment on the foundation platform, ensuring that the connections are secure and reliable. S4. Tower hoisting: Apply a ring of sealant evenly to the flange face of the foundation ring. Place the bolts, nuts, and washers for connecting the tower to the foundation ring into the foundation ring. Use a hoisting tool to lift the first tower section horizontally and then adjust it to a vertical position. Remove the bottom hoisting tool and install guy ropes to guide the tower's descent direction. Align the grounding bolt posts at the two flanges connecting the tower to the foundation ring. After adjusting the hole positions, use bolts, flat washers, and nuts to connect the two flanges from bottom to top. Manually tighten all bolts, and then use an electric wrench and a hydraulic wrench to tighten the bolts in the required sequence. Following the hoisting method for the first tower section, hoist the other tower sections in sequence, ensuring that each tower section is firmly and reliably connected and that the flange gaps meet the requirements.

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