An offshore wind turbine mounting device

Abstract

The present invention discloses an offshore wind turbine landing device, which belongs to the technical field of offshore wind turbine maintenance. Fixed on the connection base and the floating platform, the distance between the two can be reduced by a cable, and fixed by a connecting block and a fixed socket, so that the staff can safely and stably perform the landing operation. On the one hand, the lifting device can provide the cable with a fulcrum and a track to reduce the cable swing caused by the ups and downs of the sea surface, making it time-saving and labor-saving to tighten the cable; on the other hand, after the connecting block and the fixed socket are fixed, the lifting device can be lowered to lift the entire floating platform off the water surface, preventing the floating platform from being subjected to the constantly changing wave thrust, causing the connecting block and the fixed socket to be damaged by stress fatigue, thereby improving the stability and service life of the device. Tightening the cable by a drum saves time and labor, and at the same time can prevent the safety hazards caused by the random placement of the cable. The device has a reasonable structural design, is reliable and stable, can greatly reduce the risk factor of the landing operation, and ensure the safety of the staff.

Description

Technical Field

[0001] The invention belongs to the technical field of offshore wind turbine maintenance, and in particular relates to an offshore wind turbine mounting device. Background Art

[0002] At present, when maintaining and repairing offshore wind power equipment, workers are usually sent to the offshore machine position by a transport boat, and then climb onto the wind turbine platform via a gangway from the main deck of the boat (carrying tools and accessories at the same time). Due to the influence of uncertain factors such as wind and waves at sea, the transport boat has a large degree of freedom of movement. Especially in sea conditions with strong winds and waves, the up and down and left and right swings of the transport boat are large, and the boat head is seriously deviated from the wind turbine platform gangway. At the same time, the boat head rises and sinks violently, and may even collide violently with the wind turbine platform, causing a safety hazard of the staff on the platform falling into the sea. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide an offshore wind turbine landing device with a reasonable structural design, reliable and stable, which can enable workers to perform landing operations safely.

[0004] The present invention is achieved through the following technical solutions:

[0005] The invention discloses an offshore wind turbine landing device, comprising a floating platform, a connecting base, a cable, a floating block, a lifting device and a reel; the connecting base is fixed on the offshore wind turbine base; one end of the cable is connected to the connecting block, and the other end is connected to the floating block;

[0006] The lifting device and the reel are arranged on the floating platform, the upper end of the lifting device is connected with a fixed socket, and the fixed socket is provided with a cable slide rail; one end of the connecting block is connected with the connecting base, and the other end can be detachably connected with the fixed socket;

[0007] When not in use, the floating platform is placed on the offshore operating vehicle and the buoyant block floats on the sea surface; when in use, the floating platform is placed on the sea surface, the cable passes through the cable slide rail, and the buoyant block is detachably connected to the drum.

[0008] Preferably, the lifting device comprises a hydraulic cylinder and a hydraulic pump, the hydraulic cylinder is connected to the hydraulic pump, and the top end of the piston rod of the hydraulic cylinder is connected to the fixed socket.

[0009] Preferably, a pin hole is provided on the circumference of one end of the connecting block connected to the connecting base, a plug hole is provided on the fixed socket, a connecting hole matching the pin hole on the connecting block is provided on the side wall of the plug hole, and the pin hole and the connecting hole are connected by a pin.

[0010] Further preferably, one end of the connecting block connected to the fixed socket is a curved surface.

[0011] Preferably, an opening and closing cover plate is provided on the cable slide rail.

[0012] Preferably, the reel is connected to a winding motor, and the winding motor is fixed on the floating platform.

[0013] Preferably, a bayonet is provided on the drum, and a clamping block is provided between the pull rope and the floating block, and the clamping block can be detachably connected to the bayonet.

[0014] Preferably, a tool box is also provided on the floating platform, and a folding ladder is hinged on the top of the tool box.

[0015] Further preferably, the lifting device and the reel are arranged at one end of the floating platform, and the tool box is arranged at the other end of the floating platform.

[0016] Preferably, the floating platform is connected with a plurality of auxiliary buoyancy blocks.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The present invention discloses an offshore wind turbine landing device, wherein a connecting base fixed on an offshore wind turbine base and a floating platform placed on an offshore operation vehicle can reduce the distance between the two by means of a cable, and are fixed by means of a connecting block and a fixed socket, so that the staff can safely and stably perform the landing operation. On the one hand, the lifting device can provide the cable with a fulcrum and a track, reduce the cable swing caused by the ups and downs of the sea surface, and save time and effort in tightening the cable; on the other hand, after the connecting block and the fixed socket are fixed, the lifting device can be lowered back to lift the entire floating platform off the water surface, preventing the floating platform from being subjected to the constantly changing wave thrust, causing stress fatigue and damage between the connecting block and the connecting base and the fixed socket, thereby improving the stability and service life of the device. By tightening the cable by a reel, on the one hand, time and effort can be saved, and on the other hand, the cable can be neatly stored, which is convenient for the next release, and the safety hazards caused by the random placement of the cable can be eliminated. The device has a reasonable structural design, is reliable and stable, and can greatly reduce the risk factor of the landing operation and ensure the safety of the staff.

[0019] Furthermore, the lifting device adopts a hydraulic cylinder and a hydraulic pump, which is easy to operate, safe, reliable and efficient.

[0020] Furthermore, the connection base and the connection block, as well as the connection block and the fixed socket are all connected by pins, which have a simple structure and are easy to operate. Because they do not need to bear excessive loads and impact forces, this connection method can meet the use requirements.

[0021] Furthermore, one end of the connection block connected to the connection base is a curved surface, which can facilitate the connection block to be quickly and accurately inserted into the connection base on a bumpy sea surface.

[0022] Furthermore, an opening and closing cover plate is provided on the cable slide rail, which can prevent the cable from jumping off the cable slide rail and improve the efficiency of cable tightening.

[0023] Furthermore, the reel is tightened by the winding motor, which further improves efficiency and saves labor.

[0024] Furthermore, the bayonet on the drum and the block between the cable and the floating block can be quickly matched and reliably connected, which is reliable, stable and efficient.

[0025] Furthermore, the tool box on the floating platform can be loaded with maintenance tools required by the staff, and the folding ladder hinged on the top of the tool box can facilitate the staff to go up to the platform.

[0026] Furthermore, the lifting device and the reel are arranged at one end of the floating platform, and the tool box is arranged at the other end of the floating platform, which can balance the weight distribution of the floating platform and improve safety and stability.

[0027] Furthermore, the floating platform is connected with a plurality of auxiliary buoyancy blocks, which can improve the floating stability of the floating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the offshore wind turbine staging device of the present invention;

[0029] Figure 2 It is a schematic side view of the structure of the fixed socket of the present invention;

[0030] Figure 3 It is a front view structural schematic diagram of the reel of the present invention.

[0031] In the figure: 1-offshore wind turbine base, 2-floating platform, 3-connecting base, 4-connecting block, 5-cable, 6-floating block, 7-hydraulic cylinder, 8-hydraulic pump, 9-fixed socket, 9-1-cable slide rail, 9-2-socket, 9-3-opening and closing cover, 10-pin, 11-winding motor, 12-reel, 13-tool box, 14-folding ladder. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, the contents of which are intended to explain the present invention rather than to limit it:

[0033] Example 1

[0034] An offshore wind turbine mounting device of the present invention, such as Figure 1 , including a floating platform 2, a connecting base 3, a cable 5, a floating block 6, a lifting device and a drum 12; the connecting base 3 is fixed on the offshore wind turbine base 1; one end of the cable 5 is connected to the connecting block 4, and the other end is connected to the floating block 6; the cable 5 can be made of high-strength polyester traction rope, which can prevent seawater corrosion and increase service life.

[0035] The lifting device and the reel 12 are arranged on the floating platform 2, the reel 12 is connected to the winding motor 11, the reel 12 is key-connected and fixed on the output shaft of the winding motor 11, and the winding motor 11 is fixed on the floating platform 2; Figure 3 The drum 12 is a cylindrical structure with baffles at both ends. A U-shaped bayonet is provided on the drum 12. A block is provided between the cable 5 and the floating block 6, and the block can be detachably connected to the bayonet. A toolbox 13 is also provided on the floating platform 2. The toolbox 13 stores tools needed by the staff for daily use. A folding ladder 14 is hinged on the top of the toolbox 13, which can be fixed on the offshore wind turbine base 1 after unfolding, so that the staff can get on the platform conveniently. The lifting device and the drum 12 are arranged at one end of the floating platform 2, and the toolbox 13 and the folding ladder 14 are arranged at the other end of the floating platform 2, which can balance the weight on the entire floating platform 2. A number of auxiliary buoyancy blocks can be set on the side of the floating platform 2 to increase the stability of the floating platform 2.

[0036] The lifting device includes a hydraulic cylinder 7 and a hydraulic pump 8, the hydraulic cylinder 7 is connected to the hydraulic pump 8, and the top end of the piston rod of the hydraulic cylinder 7 is connected to the fixed socket 9; Figure 2 A cable slide rail 9-1 is provided on the fixed socket 9, and an opening and closing cover plate 9-3 is provided on the cable slide rail 9-1. One side of the opening and closing cover plate 9-3 is hinged to the upper plane of one side of the cable slide rail 9-1, and the other side is connected to the upper plane of the other side of the cable slide rail 9-1 through a buckle; one end of the connecting block 4 is connected to the connecting base 3, and the other end is connected to the fixed socket 9. This end is a curved surface and can be obtained by a rounding process. A pin hole is provided in the circumferential direction of this end. A socket 9-2 is provided on the fixed socket 9, and a connecting hole matching the pin hole on the connecting block 4 is provided on the side wall of the socket 9-2. The pin hole and the connecting hole are connected by a pin 10.

[0037] Example 2

[0038] The connection base 3 is provided with a plug hole with a square cross section, and the top and bottom surfaces of the plug hole are symmetrically provided with a plurality of pairs of circular through holes that penetrate from top to bottom; the connection block 4 is a rectangular parallelepiped, and a circular through hole is provided on the circumference of one end of the connection block 4 connected to the connection base 3, and bolts can be passed through the plug hole and the circular through holes on the connection block 4, and then tightened and fixed by nuts, so as to facilitate the maintenance and replacement of the connection block 4 and the cable 5 during disassembly. The remaining components and connection relationships are the same as those in Example 1.

[0039] Example 3

[0040] The lifting device adopts a scissors lifting device, and the fixed socket 9 is fixed on the top of the scissors lifting device. The remaining components and connection relationships are the same as those in embodiment 1.

[0041] Example 4

[0042] One side of the opening and closing cover plate 9-3 is hinged to the upper plane of one side of the cable slide rail 9-1, and the other side is connected to the upper plane of the other side of the cable slide rail 9-1 through a latch, so as to facilitate opening and closing.

[0043] Example 5

[0044] The end of the connection block 4 connected to the fixed socket 9 is connected by a buckle. The remaining components and connection relationships are the same as those in the first embodiment.

[0045] Example 6

[0046] The bottom of the cable slide rail 9-1 is a smooth curved surface to reduce the friction damage of the cable 5. The remaining components and connection relationships are the same as those in the first embodiment.

[0047] The method for using the offshore wind turbine staging device of the present invention:

[0048] When not going on the platform, the floating platform 2 is placed on an offshore operation vehicle, such as a transport boat, and the floating block 6 floats on the sea surface; when going on the platform, the staff places the floating platform 2 on the sea surface, uses tools to salvage the floating block 6, operates the lifting device to raise it, and the cable 5 passes through the cable slide rail 9-1 and is wound around the drum 12, and the block is clamped in the clamping port on the drum 12. The cable 5 is tightened through the drum 12, so that the floating platform 2 gradually approaches the connecting base 3, and finally the connecting block 4 is inserted into the fixed socket 9 and fixed, so that the floating platform 2 and the connecting base 3 are connected as a whole. The lifting device is operated to lift the floating platform 2 away from the sea surface to prevent the floating platform 2 from being subjected to the constantly changing wave thrust, which causes stress fatigue between the connecting block 4 and the connecting base 3 and the fixed socket 9.

[0049] It should be noted that the above is only one of the embodiments of the present invention, and equivalent changes made to the system described in the present invention are all included in the protection scope of the present invention. Those skilled in the art of the present invention can replace the specific examples described in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they are all within the protection scope of the present invention.

Claims

1. An offshore wind turbine staging device, characterized in that: It comprises a floating platform (2), a connecting base (3), a cable (5), a floating block (6), a lifting device and a reel (12); the connecting base (3) is fixed on an offshore wind turbine base (1); one end of the cable (5) is connected to a connecting block (4), and the other end is connected to the floating block (6); The lifting device and the reel (12) are arranged on the floating platform (2); the upper end of the lifting device is connected to a fixed socket (9), and the fixed socket (9) is provided with a cable slide rail (9-1); one end of the connecting block (4) is connected to the connecting base (3), and the other end can be detachably connected to the fixed socket (9); When not in use, the floating platform (2) is placed on an offshore operation vehicle, and the floating block (6) floats on the sea surface; when in use, the floating platform (2) is placed on the sea surface, the cable (5) passes through the cable slide rail (9-1), and the floating block (6) is detachably connected to the drum (12); The lifting device comprises a hydraulic cylinder (7) and a hydraulic pump (8), the hydraulic cylinder (7) is connected to the hydraulic pump (8), and the top end of the piston rod of the hydraulic cylinder (7) is connected to a fixed socket (9); A pin hole is provided on the circumference of one end of the connection block (4) connected to the connection base (3); a plug hole (9-2) is provided on the fixed socket (9); a connection hole matching the pin hole on the connection block (4) is provided on the side wall of the plug hole (9-2); the pin hole and the connection hole are connected via a pin (10); The reel (12) is connected to a reeling motor (11), and the reeling motor (11) is fixed on the floating platform (2); A bayonet is provided on the drum (12), and a clamping block is provided between the pull rope (5) and the floating block (6), and the clamping block can be detachably connected to the bayonet.

2. The offshore wind turbine staging device according to claim 1, characterized in that: One end of the connection block (4) connected to the fixed socket (9) is a curved surface.

3. The offshore wind turbine staging device according to claim 1, characterized in that: An opening and closing cover plate (9-3) is provided on the cable slide rail (9-1).

4. The offshore wind turbine staging device according to claim 1, characterized in that: A tool box (13) is also provided on the floating platform (2), and a folding ladder (14) is hinged on the top of the tool box (13).

5. The offshore wind turbine staging device according to claim 1, characterized in that: The lifting device and the reel (12) are arranged at one end of the floating platform (2), and the tool box (13) is arranged at the other end of the floating platform (2).

6. The offshore wind turbine staging device according to claim 1, characterized in that: The floating platform (2) is connected to a plurality of auxiliary buoyancy blocks.

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