Offshore wind turbine hoisting construction equipment convenient to regulate and control and method

Abstract

The invention relates to the technical field of fan hoisting construction, in particular to offshore fan hoisting construction equipment convenient to regulate and control and a method thereof.The offshore fan hoisting construction equipment comprises a first hoisting fixing device, a tower drum, a second hoisting fixing device and fixed connecting flanges, and the fixed connecting flanges are fixedly connected to the two ends of the tower drum; and the first hoisting fixing device and the second hoisting fixing device are respectively arranged at the bottom end and the upper end of the tower drum. The first hoisting fixing device and the second hoisting fixing device arranged at the two ends of the tower drum can be conveniently detached from the tower drum for use, hoisting hanging rings in the first hoisting fixing device and the second hoisting fixing device can rotate on rotary adjusting clamping rings, and the rotary adjusting clamping rings can rotate on limiting clamping rings; through the arrangement of the lifting ring, when the lifting ring is hooked and lifted, automatic adjustment and rotation can be achieved, a lifting point can fully keep the tower stable, and the lifting point can be rotationally adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine hoisting, and in particular to an offshore wind turbine hoisting construction device and method which are convenient to regulate. Background Art

[0002] Offshore wind power installation cranes are the core equipment for offshore wind turbine hoisting construction. They are usually placed on sea-loading ships or self-elevating platforms and are used to hoist wind turbine foundations, towers and wind turbines. These cranes can be divided into two types: fixed and rotary according to the action mode of the boom. However, the existing offshore wind turbine hoisting construction equipment cannot stably and adaptively hoist the hoisted tower during use, and the tower is prone to shaking during the hoisting process. When the tower is hoisted in an asymmetrical or tilted position, it is very easy for the hoisted tower to tilt and slide in the air, causing danger during the hoisting process. Therefore, a conveniently regulated offshore wind turbine hoisting construction equipment is needed to improve the above problems. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an offshore wind turbine hoisting construction device and method that is convenient to control.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a conveniently regulated offshore wind turbine hoisting construction equipment and method, comprising a first lifting and fixing device, a tower, a second lifting and fixing device and a fixed connecting flange, the fixed connecting flange is fixedly connected to the two ends of the tower, the first lifting and fixing device and the second lifting and fixing device are respectively arranged at the bottom and the upper end of the tower, and the first lifting and fixing device and the second lifting and fixing device have the same structure.

[0005] Preferably, the first lifting and fixing device and the second lifting and fixing device both include a first fixing bolt, a fixed connecting ring, a fixed connecting plate, a second fixing bolt, a fixed connecting cross column, a limiting clamp, a rotation adjustment clamp, a lifting hanging ring and a rotating clamp. The fixed connecting rings are symmetrically arranged, the first fixing bolt is threaded and rotatably inserted into the fixed connecting ring, the fixed connecting cross column is uniformly fixedly connected to the inner side of the fixed connecting ring, the limiting clamp is symmetrically arranged, the limiting clamp is fixedly connected to the end of the fixed connecting cross column away from the fixed connecting ring, the rotating clamp is fixedly connected to the inside of the rotating adjustment clamp, the rotating clamp is rotatably clamped in the inside of the limiting clamp, the lifting hanging ring is uniformly rotatably installed on the rotating adjustment clamp, the fixed connecting plates are fixedly connected to both ends of the limiting clamp, and adjacent fixed connecting plates are fixedly connected by second fixing bolts.

[0006] Preferably, a hoisting stabilizing body is provided on the second hoisting and fixing device.

[0007] Preferably, the lifting and stabilizing body includes a locking slot, a sliding adjustment lifting arm, a first electric push rod, a fixedly connected cross plate, a lifting support cross plate, a first stable adjusting part, a lifting wire rope, a second stable adjusting part, a main lifting hanging ring and an adjusting cross arm, the locking slot is evenly penetrated and opened at both ends of the adjusting cross arm, the sliding adjustment lifting arm is symmetrically arranged, and the two sliding adjustment lifting arms are respectively slidably connected to the adjusting cross arm, the first electric push rod is fixedly installed in the middle part of the side end of the sliding adjustment lifting arm, and the card block at the front end of the first electric push rod is inserted into the locking slot, the fixedly connected cross plate is fixedly connected to the bottom end of the sliding adjustment lifting arm, the lifting support cross plate is fixedly connected to the bottom end of the fixedly connected cross plate by bolts, the lifting wire rope is evenly fixedly connected to the bottom end of the lifting support cross plate, the first stable adjusting part and the second stable adjusting part are distributed at the middle side end of the adjusting cross arm, and the first stable adjusting part and the second stable adjusting part have the same structure, and the main lifting hanging ring is fixedly installed at the middle upper end of the adjusting cross arm.

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

[0009] Preferably, the first stable adjustment part and the second stable adjustment part both include a support limit frame, a fourth electric push rod, a sliding support frame, a first motor, a rotating block, a support side plate, a rotating adjustment arm, a mounting block, a rotating clamping frame, a sliding squeezing arm, a fifth electric push rod and a second motor, the fourth electric push rod is fixedly mounted on both sides of the support limit frame, the sliding support frame is slidably clamped inside the support limit frame, the front end of the fourth electric push rod is fixedly connected to the sliding support frame, the support side plates are fixedly connected to both sides of the outer ends of the sliding support frame, the rotating block is rotatably clamped between the support side plates, and the first motor is fixedly mounted on the support side plates The outer end of the first motor is fixedly connected to the middle of the rotating block, the rotating adjusting 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 adjusting arm by bolts, the second motor is fixedly mounted on the outer end of the mounting block by a side fixing frame, the rotating card frame 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 card frame, the sliding squeezing arm is slidably clamped inside the bottom end of the rotating card frame, the fifth electric push rod is fixedly mounted on the middle of the side end of the rotating card frame, and the front end of the fifth electric push rod is fixedly connected to the sliding squeezing arm.

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

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

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

[0013] A method for hoisting and installing an offshore wind turbine that is convenient to control comprises the following steps: S1. Tower cleaning and inspection: clean the dust, oil and other debris on the tower surface, check the threaded holes of the tower and the upper flange surface of the base ring to ensure that they are clean and free of damage; S2. Lift the basic platform frame: Lift the basic platform frame into the foundation ring, ensure that it is concentric with the foundation ring, and use a tape measure to measure the distance between the four vertical I-beams of the basic platform frame and the foundation ring to ensure that the distances are equal at all four sides; S3. Install the bracket and electrical equipment: Install the bracket on the foundation platform, connect and tighten it with expansion screws, lock nuts and washers, and install the inverter, tower base cabinet, tower base cabinet transformer electrical equipment on the foundation platform to ensure that the connection is reliable; S4. Tower hoisting: Apply a circle of sealant evenly on the flange surface of the foundation ring, put the bolts, nuts and gaskets used to connect the tower and the foundation ring into the foundation ring, use the hoist to lift the first section of the tower horizontally and then adjust it to a vertical position, remove the bottom hoist, install the wind rope to guide the tower's falling direction, align the grounding bolt columns at the two flanges connecting the tower and the foundation ring, adjust the hole position, and use bolts, flat washers and nuts to connect the two flanges from bottom to top. After manually tightening all the bolts, use electric wrenches and hydraulic wrenches to tighten the bolts in the required order. According to the hoisting method of the first tower section, hoist the other tower sections in turn to ensure that each tower section is firmly and reliably connected and the flange gap meets the requirements.

[0014] Beneficial effects of the present invention: 1. The first lifting fixture and the second lifting fixture provided at both ends of the tower of the present invention can be conveniently disassembled from the tower for use, and the lifting rings in the first lifting fixture and the second lifting fixture can rotate on the rotating adjustment clamp, and the rotating adjustment clamp can rotate on the limiting clamp, so that when the lifting ring is hooked for lifting, it can be automatically adjusted and rotated, so that the lifting point can fully keep the tower stable, the lifting point can be rotated and adjusted, and the lifting rings are evenly distributed, so that it can be conveniently hooked and lifted from different positions through the Range Rover. During the lifting process, the lifting ring and the rotating adjustment clamp can be rotated on the limiting clamp, and the lifting position can be automatically adjusted, so that the balance can be maintained after lifting.

[0015] 2. The present invention can ensure the stable lifting of towers with different diameters. After the tower is adjusted from a horizontal state to a vertical state, the fourth electric push rods in the symmetrically distributed first stable adjustment part and the second stable adjustment part are synchronously operated to control the telescopic adjustment of the sliding support frame, and the first motor and the second motor are operated. The first motor can drive the rotating adjustment arm to rotate, and the second motor can drive the rotating bracket to swing, so that the ends of the sliding squeezing arms in the first stable adjustment part and the second stable adjustment part are squeezed and limited with the two sides of the tower, so that the tower will not shake significantly during the vertical lifting process, and the locking slot and the main lifting are used. The hanging ring can hook and lift the whole stable hoisting body. According to the thickness of the tower, after starting the first electric push rod to pull the end block out from the inside of the locking slot, the second electric push rod and the third electric push rod are started to drive the symmetrically arranged sliding adjustment lifting arm to slide along the adjustment cross arm to adjust the position, so that the lifting wire rope at the bottom can be stably hooked on the positions on both sides of the upper end of the tower, and the lifting wire rope can stably hook the lifting ring in the second lifting fixture, so that the equipment can lift towers of different thicknesses, and can automatically adjust during the lifting process, so that towers of different thicknesses can be stably lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective; Figure 2 It is a schematic diagram of the side-view stereoscopic structure of the main body in the present invention; Figure 3 It is a schematic diagram of the tower structure in the present invention; Figure 4 It is a schematic structural diagram of the first lifting and fixing device in the present invention; Figure 5 It is a schematic diagram of the disassembled structure of the first lifting and fixing device in the present invention; Figure 6 It is a schematic diagram of the upper structure of the first lifting and fixing device in the present invention; Figure 7 It is a schematic diagram of the upper structure of the second lifting and fixing device in the present invention; Figure 8 It is a schematic diagram of the hoisting stable main body structure in the present invention; Fig. 9 It is a schematic diagram of the structure of the second stabilizing adjustment part in the present invention.

[0018] In the figure: 1-first lifting fixture, 2-tower, 3-second lifting fixture, 4-fixed connection flange, 5-first fixing bolt, 6-fixed connection ring, 7-fixed connection plate, 8-second fixing bolt, 9-fixed connection horizontal column, 10-limiting clamp ring, 11-rotation adjustment clamp ring, 12-lifting hanging ring, 13-rotation clamp ring, 14-lifting stable body, 15-locking slot, 16-sliding adjustment lifting arm, 17-first electric push rod, 18-fixed connection horizontal plate, 19-lifting support horizontal plate, 20 -First stable adjustment part, 21-lifting wire rope, 22-second stable adjustment part, 23-main lifting ring, 24-second electric push rod, 25-adjusting cross arm, 26-third electric push rod, 27-support limit frame, 28-fourth electric push rod, 29-sliding support frame, 30-first motor, 31-rotating block, 32-support side plate, 33-rotating adjustment arm, 34-mounting block, 35-rotating bracket, 36-sliding extrusion arm, 37-extrusion end, 38-fifth electric push rod, 39-second motor. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] The present invention is further described below in conjunction with the accompanying drawings.

[0022] Embodiment 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an offshore wind turbine hoisting construction equipment and method that is convenient to regulate and control of the present invention comprises a first lifting and fixing device 1, a tower 2, a second lifting and fixing device 3 and a fixed connection flange 4, the fixed connection flange 4 is fixedly connected to the two ends of the tower 2, the first lifting and fixing device 1 and the second lifting and fixing device 3 are respectively arranged at the bottom end and the upper end of the tower 2, and the first lifting and fixing device 1 and the second lifting and fixing device 3 have the same structure, the first lifting and fixing device 1 and the second lifting and fixing device 3 both comprise a first fixing bolt 5, a fixed connection ring 6, a fixed connection plate 7, a second fixing bolt 8, a fixed connection cross column 9, a limiting clamping ring 10, a rotation adjustment clamping ring 11, a lifting hanging ring 12 and a rotation clamping ring 13, the fixed connection ring 6 is symmetrically arranged, the first fixing bolt 5 is threadedly rotated and plugged into the fixed connection ring 6, the fixed connection cross column 9 is evenly fixedly connected to the inner side of the fixed connection ring 6, the limiting clamping ring 10 is symmetrically arranged, and the limiting clamping ring 10 is fixedly connected to the end of the fixed connection cross column 9 away from the fixed connection ring 6, and the rotation adjustment clamping ring 13 is provided. The dynamic clamping ring 13 is fixedly connected to the inside of the rotating adjustment clamping ring 11, and the rotating clamping ring 13 is rotatably clamped in the inside of the limiting clamping ring 10. The lifting hanging ring 12 is evenly rotatably installed on the rotating adjustment clamping ring 11. The fixed connecting plate 7 is fixedly connected to the two ends of the limiting clamping ring 10, and the adjacent fixed connecting plates 7 are fixedly connected by the second fixing bolts 8. The fixed connecting rings 6 symmetrically arranged in the first lifting fixture 1 and the second lifting fixture 3 are fixedly connected to the fixed connecting flange 4 through the first fixing bolts 5, so that the limiting clamping ring 10 and the rotating adjustment clamping ring 11 and the lifting hanging ring 12 are clamped and connected at the two end positions of the tower 2. The lifting hanging ring 12 on the first lifting fixture 1 is hooked with the rope body for lifting, and the lifting hanging ring 12 in the second lifting fixture 3 is fixed to the bottom end of the lifting wire rope 21 by bolts. After connection, the tower 2 is first lifted horizontally by the lifting equipment, and then one end of the second lifting fixture 3 is set to continue lifting so that the tower 2 changes from a horizontal state to a vertical state.

[0023] like Figure 6 , Figure 7 and Figure 8As shown, a lifting and stabilizing body 14 is provided on the second lifting and fixing device 3, and the lifting and stabilizing body 14 includes a locking slot 15, a sliding adjustment lifting arm 16, a first electric push rod 17, a fixed connection cross plate 18, a lifting support cross plate 19, a first stable adjustment part 20, a lifting wire rope 21, a second stable adjustment part 22, a main lifting hanging ring 23 and an adjusting cross arm 25, the locking slot 15 is evenly penetrated and opened at both ends of the adjusting cross arm 25, the sliding adjustment lifting arm 16 is symmetrically arranged, and the two sliding adjustment lifting arms 16 are respectively slidably connected to the adjusting cross arm 25, the first electric push rod 17 is fixedly installed in the middle of the side end of the sliding adjustment lifting arm 16, and the block at the front end of the first electric push rod 17 is inserted into the locking slot 15, the fixed connection cross plate 18 is fixedly connected to the bottom end of the sliding adjustment lifting arm 16, and the lifting support cross plate 19 is fixedly connected to the bottom end of the fixed connection cross plate 18 by bolts. The lifting wire rope 21 is evenly fixedly connected to the bottom end of the lifting support cross plate 19, the first stable adjustment part 20 and the second stable adjustment part 22 are distributed at the middle side end of the adjusting cross arm 25, and the first stable adjustment part 20 and the second stable adjustment part 22 have the same structure, the main lifting hanging ring 23 is fixedly installed at the middle upper end of the adjusting cross arm 25, and the second electric push rod 24 and the third electric push rod 26 are fixedly installed on the upper parts of both ends of the adjusting cross arm 25, and the second electric push rod 24 and the third electric push rod 26 are symmetrically distributed, and the front ends of the second electric push rod 24 and the third electric push rod 26 are respectively fixedly connected to the two sides of the upper end of the sliding adjustment lifting arm 16, after starting the first electric push rod 17 to pull the end block out of the locking slot 15, start the second electric push rod 24 and the third electric push rod 26 to drive the symmetrically arranged sliding adjustment lifting arm 16 to slide along the adjusting cross arm 25 to adjust the position.

[0024] like Fig. 9As shown, the first stable adjustment part 20 and the second stable adjustment part 22 both include a support limit 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 clamping frame 35, a sliding extrusion 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 limit frame 27, the sliding support frame 29 is slidably clamped in the interior of the support limit frame 27, the front end of the fourth electric push rod 28 is fixedly connected to the sliding support frame 29, the supporting side plates 32 are fixedly connected to both sides of the outer ends of the sliding support frame 29, the rotating block 31 is rotatably clamped between the supporting side plates 32, the first motor 30 is fixedly installed on the outer ends of the supporting side plates 32, and the driving end of the first motor 30 is fixedly connected to the middle of the rotating block 31, and the rotating adjustment arm 33 is fixedly connected to the rotating The bottom end of the 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 through the side fixing frame, 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 part 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 part 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, the first motor 30 can drive the rotating adjustment arm 33 to rotate, and the second motor 39 can drive the rotating bracket 35 to swing, so that the ends of the sliding extrusion arms 36 in the first stable adjustment part 20 and the second stable adjustment part 22 are squeezed and limited with the two sides of the tower 2, so that the tower 2 will not shake significantly during the vertical lifting process.

[0025] The bottom end of the lifting wire rope 21 is fixedly connected to the lifting ring 12 in the second lifting fixture 3 by bolts, and the fixed connecting ring 6 in the first lifting fixture 1 and the second lifting fixture 3 is fixedly connected to the fixed connecting flange 4 by the first fixing bolt 5, which is convenient for disassembly and use.

[0026] The support limit frame 27 is connected to the middle part of the side end of the adjusting cross arm 25, and the extrusion end heads 37 in the first lifting fixture 1 and the second lifting fixture 3 are in extrusion contact with the side end of the tower 2, playing the role of blocking and limiting, so that the hoisting stabilizing body 14 as a whole can be directly hooked and lifted through the main lifting ring 23, which is safe and stable.

[0027] Working principle: During use, the fixed connection ring 6 symmetrically arranged in the first lifting fixture 1 and the second lifting fixture 3 is first fixedly connected to the fixed connection flange 4 through the first fixing bolt 5, so that the limit clamp 10 and the rotation adjustment clamp 11 and the lifting hanging ring 12 are clamped and connected at the two ends of the tower 2. The lifting hanging ring 12 on the first lifting fixture 1 is hooked with the rope body for lifting, and the lifting hanging ring 12 in the second lifting fixture 3 is fixed to the bottom end of the lifting wire rope 21 through bolts. After connection, the tower is first lifted by the lifting equipment 2 is lifted horizontally, and then one end of the second lifting fixture 3 is set to continue lifting so that the tower 2 changes from a horizontal state to a vertical state, and in the process of lifting, the rotating adjustment clamp ring 11 can be rotated inside the limit clamp ring 10 through the rotating clamp ring 13, so that the symmetrical pair of lifting rings 12 can be hooked and lifted to make the tower 2 stable. Even if the hooking point is deflected, the rotating adjustment clamp ring 11 and the lifting ring 12 can be rotated and adjusted inside the limit clamp ring 10, so that the lifting point can lift the tower 2 stably, realizing the function of automatic balance adjustment; When the tower 2 is adjusted from a horizontal state to a vertical state, the fourth electric push rods 28 in the symmetrically distributed first stable adjustment part 20 and the second stable adjustment part 22 are synchronously operated to control the telescopic adjustment of the sliding support frame 29, and the first motor 30 and the second motor 39 are operated. The first motor 30 can drive the rotating adjustment arm 33 to rotate, and the second motor 39 can drive the rotating bracket 35 to swing, so that the ends of the sliding squeezing arms 36 in the first stable adjustment part 20 and the second stable adjustment part 22 are squeezed and limited with the two sides of the tower 2, so that the tower 2 will not shake significantly during the vertical lifting process, and the lifting stability can be locked by locking the card slot 15 and the main lifting ring 23. The fixed main body 14 is hooked and lifted up stably as a whole. According to the thickness of the tower 2, after starting the first electric push rod 17 to pull the end block out from the inside of the locking slot 15, the second electric push rod 24 and the third electric push rod 26 are started to drive the symmetrically arranged sliding adjustment lifting arm 16 to slide and adjust the position along the adjustment cross arm 25, so that the lifting wire rope 21 at the bottom can be stably hooked on the positions on both sides of the upper end of the tower 2, and the lifting wire rope 21 can stably hook the lifting ring 12 in the second lifting fixture 3, so that the equipment can lift towers 2 of different thicknesses, and can automatically adjust during the lifting process, so that towers 2 of different thicknesses can be stably lifted.

[0028] A method for hoisting and installing an offshore wind turbine that is convenient to control comprises the following steps: S1. Tower cleaning and inspection: clean the dust, oil and other debris on the tower surface, check the threaded holes of the tower and the upper flange surface of the base ring to ensure that they are clean and free of damage; S2. Lift the basic platform frame: Lift the basic platform frame into the foundation ring, ensure that it is concentric with the foundation ring, and use a tape measure to measure the distance between the four vertical I-beams of the basic platform frame and the foundation ring to ensure that the distances are equal at all four sides; S3. Install the bracket and electrical equipment: Install the bracket on the foundation platform, connect and tighten it with expansion screws, lock nuts and washers, and install the inverter, tower base cabinet, tower base cabinet transformer electrical equipment on the foundation platform to ensure that the connection is reliable; S4. Tower hoisting: Apply a circle of sealant evenly on the flange surface of the foundation ring, put the bolts, nuts and gaskets used to connect the tower and the foundation ring into the foundation ring, use the hoist to lift the first section of the tower horizontally and then adjust it to a vertical position, remove the bottom hoist, install the wind rope to guide the tower's falling direction, align the grounding bolt columns at the two flanges connecting the tower and the foundation ring, adjust the hole position, and use bolts, flat washers and nuts to connect the two flanges from bottom to top. After manually tightening all the bolts, use electric wrenches and hydraulic wrenches to tighten the bolts in the required order. According to the hoisting method of the first section of the tower, hoist the other sections of the tower in turn to ensure that each section of the tower is firmly and reliably connected and the flange gap meets the requirements Embodiment 2, on the basis of embodiment 1, as Fig. 9 As shown, the bottom end of the sliding extrusion arm 36 is fixedly mounted with an extrusion end 37 .

[0029] When implementing this embodiment, an extrusion end head 37 is fixed by bolts at the bottom end of the sliding extrusion arm 36, and the extrusion end head 37 can be easily replaced with different shapes, and can be adapted to the outside of the tower 2 with different diameters, thereby playing a more stable clamping and limiting role.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore wind turbine hoisting construction device that is easy to control, comprising a first hoisting fixture (1), a tower (2), a second hoisting fixture (3) and a fixed connection flange (4), characterized in that: The fixed connection flange (4) is fixedly connected to both ends of the tower (2), the first lifting fixture (1) and the second lifting fixture (3) are respectively arranged at the bottom end and the top end of the tower (2), and the first lifting fixture (1) and the second lifting fixture (3) have the same structure.

2. The conveniently regulated offshore wind turbine hoisting construction equipment according to claim 1 is characterized in that: The first lifting fixture (1) and the second lifting fixture (3) both comprise a first fixing bolt (5), a fixing connection ring (6), a fixing connection plate (7), a second fixing bolt (8), a fixing connection cross column (9), a limiting clamp (10), a rotation adjustment clamp (11), a lifting hook (12) and a rotation clamp (13), wherein the fixing connection ring (6) is symmetrically arranged, the first fixing bolt (5) is threadably inserted into the fixing connection ring (6), the fixing connection cross column (9) is evenly fixedly connected to the inner side of the fixing connection ring (6), the limiting clamp (1 0) are symmetrically arranged, the limiting clamp (10) is fixedly connected to one end of the fixed connection cross column (9) away from the fixed connection ring (6), the rotating clamp (13) is fixedly connected to the inside of the rotating adjustment clamp (11), the rotating clamp (13) is rotatably clamped inside the limiting clamp (10), the lifting ring (12) is evenly rotatably installed on the rotating adjustment clamp (11), the fixed connection plate (7) is fixedly connected to the two ends of the limiting clamp (10), and the adjacent fixed connection plates (7) are fixedly connected by a second fixing bolt (8).

3. The offshore wind turbine hoisting construction equipment that is convenient to control according to claim 2 is characterized by: The second lifting and fixing device (3) is provided with a lifting and stabilizing body (14).

4. The conveniently regulated offshore wind turbine hoisting construction equipment according to claim 3 is characterized in that: The hoisting stabilizing body (14) comprises a locking slot (15), a sliding adjustment lifting arm (16), a first electric push rod (17), a fixed connecting cross plate (18), a lifting support cross plate (19), a first stabilizing adjusting part (20), a lifting wire rope (21), a second stabilizing adjusting part (22), a main lifting hanging ring (23) and an adjusting cross arm (25), wherein the locking slot (15) is evenly penetrated and opened at both ends of the adjusting cross arm (25), the sliding adjustment lifting arm (16) is symmetrically arranged, and the two sliding adjustment lifting arms (16) are respectively slidably connected to the adjusting cross arm (25), the first electric push rod (17) is fixedly installed at the middle part of the side end of the sliding adjustment lifting arm (16), and the second The block at the front end of an electric push rod (17) is inserted into the locking slot (15), the fixed connection cross plate (18) is fixedly connected to the bottom end of the sliding adjustment lifting arm (16), the lifting support cross plate (19) is fixedly connected to the bottom end of the fixed connection cross plate (18) by bolts, the lifting wire rope (21) is evenly fixedly connected to the bottom end of the lifting support cross plate (19), the first stable adjustment part (20) and the second stable adjustment part (22) are distributed on the middle side end of the adjustment cross arm (25), and the first stable adjustment part (20) and the second stable adjustment part (22) have the same structure, and the main lifting hanging ring (23) is fixedly installed on the middle upper end of the adjustment cross arm (25).

5. The offshore wind turbine hoisting construction equipment that is convenient to control according to claim 4 is characterized in that: A second electric push rod (24) and a third electric push rod (26) are fixedly mounted on the upper parts of both ends of the adjusting cross arm (25), and the second electric push rod (24) and the third electric push rod (26) are symmetrically arranged, and the front ends of the second electric push rod (24) and the third electric push rod (26) are respectively fixedly connected to both sides of the upper end of the sliding adjusting lifting arm (16).

6. The conveniently regulated offshore wind turbine hoisting construction equipment according to claim 5 is characterized in that: The first stable adjustment part (20) and the second stable adjustment part (22) both comprise a support limit 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 clamping frame (35), a sliding squeezing arm (36), a fifth electric push rod (38) and a second motor (39); the fourth electric push rod (28) is fixedly mounted on both sides of the support limit frame (27); the sliding support frame (29) is slidably clamped inside the support limit frame (27); the front end of the fourth electric push rod (28) is fixedly connected to the sliding support frame (29); the support side plates (32) are fixedly connected to both sides of the outer ends of the sliding support frame (29); the rotating block (31) is rotatably clamped between the support side plates (32); the first motor (30) is fixedly mounted on both sides of the support limit frame (27); The first motor (30) is fixedly mounted on the outer end of the supporting side plate (32), and the driving end of the first motor (30) is fixedly connected to the middle part 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 mounted on the outer end of the mounting block (34) by a side fixing frame, 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 part 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 mounted on the middle part 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).

7. The conveniently regulated offshore wind turbine hoisting construction equipment according to claim 6 is characterized in that: The bottom end of the lifting wire rope (21) is fixedly connected to the lifting hook (12) in the second lifting fixture (3) by means of bolts, and the fixed connection rings (6) in the first lifting fixture (1) and the second lifting fixture (3) are fixedly connected to the fixed connection flange (4) by means of first fixing bolts (5).

8. The offshore wind turbine hoisting construction equipment that is convenient to control according to claim 7 is characterized by: The support limit frame (27) is connected to the middle part of the side end of the adjustment cross arm (25), and the extrusion ends (37) in the first lifting and fixing device (1) and the second lifting and fixing device (3) are in extrusion contact with the side end of the tower (2).

9. The conveniently regulated offshore wind turbine hoisting construction equipment according to claim 8 is characterized in that: The bottom end of the sliding extrusion arm (36) is fixedly mounted with an extrusion end head (37).

10. A method for conveniently regulating offshore wind turbine hoisting and installation, using the conveniently regulating offshore wind turbine hoisting and installation equipment according to claim 9, characterized in that: It includes the following steps: S1. Tower cleaning and inspection: clean the dust, oil and other debris on the tower surface, check the threaded holes of the tower and the upper flange surface of the base ring to ensure that they are clean and free of damage; S2. Lift the basic platform frame: Lift the basic platform frame into the foundation ring, ensure that it is concentric with the foundation ring, and use a tape measure to measure the distance between the four vertical I-beams of the basic platform frame and the foundation ring to ensure that the distances are equal at all four sides; S3. Install the bracket and electrical equipment: Install the bracket on the foundation platform, connect and tighten it with expansion screws, lock nuts and washers, and install the inverter, tower base cabinet, tower base cabinet transformer electrical equipment on the foundation platform to ensure that the connection is reliable; S4. Tower hoisting: Apply a circle of sealant evenly on the flange surface of the foundation ring, put the bolts, nuts and gaskets used to connect the tower and the foundation ring into the foundation ring, use the hoist to lift the first section of the tower horizontally and then adjust it to a vertical position, remove the bottom hoist, install the wind rope to guide the tower's falling direction, align the grounding bolt columns at the two flanges connecting the tower and the foundation ring, adjust the hole position, and use bolts, flat washers and nuts to connect the two flanges from bottom to top. After manually tightening all the bolts, use electric wrenches and hydraulic wrenches to tighten the bolts in the required order. According to the hoisting method of the first tower section, hoist the other tower sections in turn to ensure that each tower section is firmly and reliably connected and the flange gap meets the requirements.

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