Offshore wind power blade dismounting lifting appliance

Abstract

The invention discloses an offshore wind power blade disassembling lifting appliance which comprises a lifting appliance main beam. The sling girder is provided with a generator; one side of the lifting appliance main beam is connected with a short folding beam through a pin shaft, and the other side is connected with a long folding beam through a pin shaft; the lifting sling is detachably connected with the sling main beam; the pressing plate mechanism is arranged at the lower end of the sling girder; a windproof stabilizing assembly; each group of windproof stabilizing components is detachably connected with the lifting appliance main beam and one short folding beam; the windproof stabilizing assembly cable is fixed at the anchor point; a speed reduction mechanism; the speed reducing mechanism disconnects the short folding beam; the lower end of the reducing mechanism is connected with the adapter; an L-shaped beam; one end of the L-shaped beam is detachably connected with the adapter; a blade fixing assembly; the blade fixing assemblies are detachably connected with the short folding beams, the long folding beams and the L-shaped beams. A control device; the control device is electrically connected with the generator, the windproof stabilizing assembly, the pressing plate mechanism, the speed reducing mechanism and the blade fixing assembly. An anchor point is fixed through a windproof stabilizing assembly, and the slipping risk caused by large offshore wind speed is prevented; the hoisting safety is improved while the application range is wide.

Description

Technical Field

[0001] This invention relates to the field of blade removal lifting tools, and in particular to a blade removal lifting tool for offshore wind turbines. Background Technology

[0002] As the scale of offshore wind power installations continues to expand, blades in various wind farms are experiencing usage and quality issues, necessitating disassembly.

[0003] Currently, there are two main methods for disassembling blades: one is to use a single blade clamp for lifting and disassembly, and the other is to use two cranes for lifting and disassembly. The above disassembly methods have the following problems. The first method, which uses a single blade clamp for disassembly, can meet the disassembly requirements, but the clamp manufacturing cost is too high and high-altitude operation is difficult. At present, this type of lifting tool is almost no longer in production. The second method requires two cranes to lift the blades by using slings at both ends. The cost of using two cranes is too high, and the wind speed at sea is too high, which poses a risk of slippage. The entire lifting and disassembly process needs to be carried out during the lifting window, which is difficult to meet customer needs.

[0004] Therefore, those skilled in the art urgently need to provide an offshore wind turbine blade dismantling tool that reduces usage costs and the risk of slippage. Summary of the Invention

[0005] The purpose of this invention is to provide a blade removal tool for offshore wind turbines to solve the problems existing in the prior art.

[0006] A blade removal lifting device for offshore wind turbines includes: a lifting main beam; a generator mounted on the lifting main beam; two short folding beams connected to one side of the lifting main beam via pins, and two long folding beams connected to the other side via pins, forming an I-beam-like structure; a lifting sling; the lifting sling is located at the upper end of the lifting main beam and is detachably connected to the lifting main beam; a pressure plate mechanism; the pressure plate mechanism is located at the lower end of the lifting main beam; and two sets of wind-resistant stabilizing components; each set of wind-resistant stabilizing components is detachably connected to the lifting main beam and one of the short folding beams. The components include: a detachable connection; the wind-resistant stabilizing component's rope fixed to a fixed anchor point; a deceleration mechanism; the deceleration mechanism is detachably connected to the bottom surface of the short folding beam away from the main beam of the lifting device; a transition piece is detachably connected to the lower end of the deceleration mechanism; an L-shaped beam; one end of the L-shaped beam is detachably connected to the transition piece; a blade fixing assembly; the blade fixing assembly is detachably connected to the short folding beam, the long folding beam, and the L-shaped beam; and a control device; the control device is electrically connected to the generator, the wind-resistant stabilizing component, the pressure plate mechanism, the deceleration mechanism, and the blade fixing assembly.

[0007] Preferably, the L-shaped beam includes a vertical beam and an L-shaped lower beam; the top end of the vertical beam is detachably connected to the adapter, and the bottom end is detachably connected to one end of the L-shaped lower beam; the other end of the L-shaped lower beam is located at the lower end of the long folding beam.

[0008] Preferably, the blade fixing assembly includes a sling fixing frame, an electric hoist assembly, a hook, an emergency release device, a load-bearing sling, and a hook holder; the sling fixing frame is detachably connected to the top surface of the crossbeam of the L-shaped lower beam; the sling fixing frame is located at the lower end of the long folding beam; four electric hoist assemblies are provided, and the four electric hoist assemblies are detachably connected to the bottom ends of the long folding beam and the short folding beam respectively; the lifting block of the electric hoist assembly at the lower end of the long folding beam is detachably connected to the hook via a pin sensor; the hook is located at the upper end of the sling fixing frame; the lifting block of the electric hoist assembly at the lower end of the short folding beam is detachably connected to the emergency release device via a pin sensor; one end of the load-bearing sling is connected to the sling fixing frame, and the other end is connected to the emergency release device; the hook holder is detachably connected to the hook and the electric hoist assembly at the lower end of the long folding beam.

[0009] Preferably, the wind-resistant stabilizing component includes a wind-catching fan, a wind-catching guide component one, a wind-catching guide component two, and a wind-catching guide component three; the wind-catching fan and the wind-catching guide component one are fixed to the top surface of the main beam; the wind-catching guide component two and the wind-catching guide component three are respectively fixed to the top surface of the short folding beam; the catching rope inside the wind-catching fan passes through the wind-catching guide component one, the wind-catching guide component two, and the wind-catching guide component three in sequence and is fixed at a fixed anchor point.

[0010] Preferably, the reduction mechanism includes a rotary reducer and a geared motor; the rotary reducer is detachably connected to the bottom surface of the short folding beam via a flange; the input shaft of the rotary reducer is connected to the output end of the geared motor; and the bottom end of the rotary reducer is detachably connected to the adapter.

[0011] Preferably, the hook holder includes support rod one, support rod two, support rod three, and support rod four; one end of support rod one is detachably connected to the fixing block of the electric hoist assembly at the lower end of the long folding beam, and the other end is hinged to one end of support rod two; the other end of support rod two is hinged to one end of support rod three; the other end of support rod three is hinged to one end of support rod four; and the other end of support rod four is detachably connected to the hook.

[0012] Preferably, the control device includes an electrical control cabinet one and an electrical control cabinet two; the electrical control cabinet one and the electrical control cabinet two are located at the upper end of the main beam of the lifting device; the electrical control cabinet one is electrically connected to the electric hoist assembly, pin sensor, hook, emergency release device, geared motor, pressure plate mechanism and generator; the electrical control cabinet two is electrically connected to the wind turbine and generator.

[0013] Preferably, a proximity switch is connected to the flange at the bottom end of the short folding beam; the proximity switch is electrically connected to the electrical control cabinet.

[0014] Preferably, a safety ladder is detachably connected to the side end of the vertical beam; and multiple casters are detachably connected to the bottom end of the L-shaped lower beam.

[0015] Preferably, a camera is detachably connected to the main beam of the lifting device; a second camera is detachably connected to the vertical beam; the first camera and the second camera are respectively electrically connected to the electrical control cabinet.

[0016] Compared with the prior art, the present invention provides a blade removal tool for offshore wind turbines, which has the following advantages: 1. Before lifting the whole unit, secure it to the anchor point with the rope of the windproof and stabilizing component to prevent the risk of slippage due to high wind speed at sea.

[0017] 2. After the blade is clamped and fixed by the pressure plate mechanism and the blade fixing assembly, the moving hook lifts the blade out of the hub to complete the blade disassembly. The lifting device of the present invention does not require the use of two cranes and can be used even during non-lifting windows. It has a wide range of applications and improves lifting safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a rear view of the overall structure of the present invention; Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 1 Enlarged view at point B in the middle; Figure 5 For the present invention Figure 2 Enlarged view at point C; Figure 6For the present invention Figure 2 Enlarged view of point D in the middle.

[0020] Wherein: 1 is the main beam of the lifting device; 2 is the generator; 3 is the pin shaft; 4 is the short folding beam; 5 is the long folding beam; 6 is the lifting sling; 7 is the pressure plate mechanism; 8 is the windproof stabilizing component; 801 is the wind-drawing fan; 802 is the wind-drawing guide component one; 803 is the wind-drawing guide component two; 804 is the wind-drawing guide component three; 9 is the reduction mechanism; 901 is the rotary reducer; 902 is the reduction motor; 10 is the adapter; 11 is the L-shaped beam; 1101 is the vertical beam; 1102 is the L-shaped lower beam; 12 is the sling fixing frame; 13 is... Electric hoist assembly; 14 is pin sensor; 15 is hook assembly; 1501 is telescopic pin; 16 is emergency release hook; 17 is load-bearing sling; 1701 is eye ring; 18 is hook assembly retainer; 1801 is support rod one; 1802 is support rod two; 1803 is support rod three; 1804 is support rod four; 19 is control device; 1901 is electrical control cabinet one; 1902 is electrical control cabinet two; 20 is proximity switch; 21 is safety ladder; 22 is camera one; 23 is camera two; 24 is caster. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1-2As shown, a blade removal lifting device for offshore wind turbines includes: a main beam 1; a generator 2 is mounted on the main beam 1; two short folding beams 4 are connected to one side of the main beam 1 via pins 3, and two long folding beams 5 are connected to the other side via pins 3, forming an I-beam-like structure; a lifting sling 6; the lifting sling 6 is located at the upper end of the main beam 1 and is detachably connected to the main beam 1; a pressure plate mechanism 7; the pressure plate mechanism 7 is located at the lower end of the main beam 1; and two sets of windproof and stabilizing components 8; each set of windproof and stabilizing components 8 is detachably connected to the main beam 1 and one of the short folding beams 4. Disconnection connection; the rope of the windproof stabilizing component 8 is fixed to the fixed anchor point; deceleration mechanism 9; the deceleration mechanism 9 is detachably connected to the bottom surface of the short folding beam 4 away from the main beam 1 of the lifting device; the lower end of the deceleration mechanism 9 is detachably connected to the adapter 10; L-shaped beam 11; one end of the L-shaped beam 11 is detachably connected to the adapter 10; blade fixing assembly; the blade fixing assembly is detachably connected to the short folding beam 4, the long folding beam 5 and the L-shaped beam 11; control device 19; the control device 19 is electrically connected to the generator 2, the windproof stabilizing component 8, the pressure plate mechanism 7, the deceleration mechanism 9 and the blade fixing assembly respectively.

[0024] In this invention, the inner sides of the short folding beam 4 and the long folding beam 5 are respectively connected to the side of the main beam 1 of the lifting device with support rods, which are used to stabilize the short folding beam 4 and the long folding beam 5; the pressure plate mechanism 7 in this field is generally also called the blade clamping and stabilizing mechanism. The pressure plate mechanism 7 moves up and down to clamp the blade and prevent the blade from shaking due to excessive wind speed at sea. The specific structure is not described in detail, but is based on the technical solution of this application, such as the relevant structure described in the patent with patent number CN119018755A and patent name "An I-shaped Foldable Wind Turbine Blade Lifting Device"; the top surface of the main beam 1 of the lifting device is provided with four shackles and lifting straps 6. The device is detachably connected to the main beam 1 of the lifting device via four shackles; the generator 2 provides power; before the overall lifting, the cable of the wind-resistant stabilizing component 8 is fixed to the anchor point to prevent slippage due to high wind speed at sea; after the blade is clamped and fixed by the pressure plate mechanism 7 and the blade fixing component, the blade is lifted out of the hub by moving the hook of the floating crane to complete the blade disassembly. The lifting device of the present invention does not require the use of two cranes and can be used even during non-lifting windows, which has a wide range of applications and improves lifting safety; the above-mentioned floating crane is not part of this application. The hook of the floating crane is used to contact the lifting sling 6 to lift the entire application.

[0025] In one exemplary embodiment, such as Figure 1 , Figure 2 as well as Figure 4 As shown, the L-shaped beam 11 includes a vertical beam 1101 and an L-shaped lower beam 1102; the top end of the vertical beam 1101 is detachably connected to the adapter 10, and the bottom end is detachably connected to one end of the L-shaped lower beam 1102; the other end of the L-shaped lower beam 1102 is located at the lower end of the long folding beam 5.

[0026] In this invention, a flange is integrally connected to the bottom end of the vertical beam 1101, and a flange adapted to the flange is integrally connected to the top end of the L-shaped lower beam 1102, which are detachably connected by bolts and nuts; the detachable connection method between the vertical beam 1101 and the adapter 10 is the same as described above and will not be repeated; dividing the L-shaped beam 11 into a vertical beam 1101 and an L-shaped lower beam 1102 facilitates installation and transportation; as Figure 4 As shown, the top surface of the crossbeam of the L-shaped lower beam 1102 located at the lower end of the long folding beam 5 is connected to a slide rail. The slide rail is in the form of a double row of segmented long strip holes, which can connect the bottom end of the sling fixing frame 12 to the mounting plate. The mounting plate has through holes, and bolts and nuts are passed through the through holes and long strip holes to fix it at any position on the slide rail, which can be used for various blades. Both the vertical beam 1101 and the L-shaped lower beam 1102 adopt a truss structure to ensure that the lifting equipment is lightweight and reduces deflection.

[0027] In one exemplary embodiment, such as Figure 1-2 As shown, the blade fixing assembly includes a sling fixing frame 12, an electric hoist assembly 13, a hook 15, an emergency release hook 16, a load-bearing sling 17, and a hook retainer 18; the sling fixing frame 12 is detachably connected to the top surface of the crossbeam of the L-shaped lower beam 1102; the sling fixing frame 12 is located at the lower end of the long folding beam 5; four electric hoist assemblies 13 are provided, and the four electric hoist assemblies 13 are detachably connected to the bottom ends of the long folding beam 5 and the short folding beam 4 respectively; the electric hoist at the lower end of the long folding beam 5... The lifting block of the hoist assembly 13 is detachably connected to the hook 15 via the pin sensor 14; the hook 15 is located at the upper end of the sling fixing frame 12; the lifting block of the electric hoist assembly 13 at the lower end of the short folding beam 4 is detachably connected to the emergency release device 16 via the pin sensor 14; one end of the carrying sling 17 is connected to the sling fixing frame 12, and the other end is connected to the emergency release device 16; the hook holder 18 is detachably connected to the hook 15 and the electric hoist assembly 13 at the lower end of the long folding beam 5.

[0028] In this invention, the pin sensor 14 is used to display the measured load-bearing capacity value, and the pin sensor 14 is electrically connected to the control device 19; as shown... Figure 4As shown, the right end of the sling fixing bracket 12 is a support structure for hanging the eyelet of the load-bearing sling 17. The bracket is welded to the support plate. The U-shaped opening at the top of the support plate is used to avoid the telescopic pin 1501 of the hook 15, ensuring that the hook 15 can be smoothly inserted into the eyelet 1701 of the load-bearing sling 17. The left end is an inverted V-shaped opening, which can be inserted into the inverted V-shaped opening to achieve precise positioning of the hook 15. The lower part is a mounting plate that matches the L-shaped beam 11. In use, firstly, the hook 15... The device moves downwards, causing the eye 1701 of the sling 17 to enter the V-shaped groove at the lower end of the hook 15. Next, the telescopic pin 1501 moves laterally into the through hole of the eye 1701. Finally, the hook 15 moves upwards, causing the sling 17 to contact the blade. The hook 15 is not described in detail, but is based on the technical solution of this application, such as the related structure described in the patent with patent number CN219807659U, entitled "A High-Altitude Release Device for Lifting Belts for Wind Power".

[0029] In this invention, the lifting device is lifted as a whole by the lifting sling 6. After adjusting the position of the sling fixing frame 12 under no-load conditions, the L-shaped beams 11 at both ends are rotated by the deceleration mechanism 9 to ensure that the hook 15 is hooked smoothly. Before the formal lifting, the carrying sling 17 is hung on the sling fixing frame 12, and the electric hoist assembly 13 is retracted to the uppermost position. The lifting device is raised to one side of the blade, and the blade is inserted from the lifting device into the space between the main beam 1 and the L-shaped beam 11. The electric hoist assembly 13 at the lower end of the long folding beam 5 is lowered, and the hook 15 is hooked into the carrying sling 17. The telescopic pin 1501 of the hook 15 is controlled to hook the blade, the electric hoist assembly 13 is raised to tighten the carrying sling 17, the pressure plate mechanism 7 presses down the blade, and the hook is moved to lift the blade out of the hub to complete the blade disassembly. The lifting device of this invention does not require the use of two cranes and can be used even during non-lifting windows, which has a wide range of applications and improves lifting safety.

[0030] In one exemplary embodiment, such as Figure 1-2 As shown, the wind-resistant stabilizing component 8 includes a wind-guiding fan 801, a wind-guiding guide component one 802, a wind-guiding guide component two 803, and a wind-guiding guide component three 804; the wind-guiding fan 801 and the wind-guiding guide component one 802 are fixed to the top surface of the main beam 1; the wind-guiding guide component two 803 and the wind-guiding guide component three 804 are respectively fixed to the top surface of the short folding beam 4; the rope inside the wind-guiding fan 801 passes through the wind-guiding guide component one 802, the wind-guiding guide component two 803, and the wind-guiding guide component three 804 in sequence and is fixed at a fixed anchor point.

[0031] In this invention, the fixed anchor point is the fixed anchor point of the offshore platform or floating crane; the rope inside the wind puller 801 passes through the wind puller guide component 1 802, the wind puller guide component 2 803 and the wind puller guide component 3 804 in sequence, and the rope is pulled out in a straight line without large angle turning or bending, ensuring smooth rope output and preventing rope tangling.

[0032] In one exemplary embodiment, such as Figure 2-3 As shown, the reduction mechanism 9 includes a rotary reducer 901 and a geared motor 902; the rotary reducer 901 is detachably connected to the bottom surface of the short folding beam 4 via a flange; the input shaft of the rotary reducer 901 is connected to the output end of the geared motor 902; and the bottom end of the rotary reducer 901 is detachably connected to the adapter 10.

[0033] In this invention, the rotary reducer 901 and the geared motor 902 are used together to form a two-stage reduction, which increases the rotational torque and reduces the rotational speed; the reduction mechanism 9 is used for fine-tuning the angle of the L-shaped beam 11.

[0034] In one exemplary embodiment, such as Figure 2 and 6 As shown, the hook holder 18 includes support rod one 1801, support rod two 1802, support rod three 1803, and support rod four 1804; one end of support rod one 1801 is detachably connected to the fixing block of the electric hoist assembly 13 at the lower end of the long folding beam 5, and the other end is hinged to one end of support rod two 1802; the other end of support rod two 1802 is hinged to one end of support rod three 1803; the other end of support rod three 1803 is hinged to one end of support rod four 1804; and the other end of support rod four 1804 is detachably connected to the hook 15.

[0035] In this invention, the upper fixed block head and the lower lifting block of the electric hoist assembly 13 are connected by a chain. This connection is a flexible connection, and the lifting block is prone to shaking, which cannot guarantee the precise hooking of the hook device 15 and the carrying strap eye. Therefore, a hook device retainer 18 is installed to ensure the hook device 15 descends smoothly. One end of the support rod 1801 is connected to a perforated mounting plate for detachable connection with the fixed block of the electric hoist assembly 13 at the lower end of the long folding beam 5, and the other end is connected to a rotating shaft. One end of the support rod 1802 is connected to a double-ear plate that matches the rotating shaft, and the double-ear plate is hinged to the rotating shaft. The other end of support rod 2 1802 is connected to double ear plate 2. One end of support rod 3 1803 is connected to double ear plate 3 that matches double ear plate 2, and the other end of support rod 3 1803 is connected to double ear plate 4. One end of support rod 4 1804 is connected to rotating shaft 2 that matches double ear plate 4 to achieve hinge connection, and the other end is detachably connected to hook 15 through mounting plate. Support rod 4 1804 is slightly shorter than support rod 1 1801, so as to ensure that support rod 2 1802 and support rod 3 1803 can rotate in the same plane. The lengths of support rod 1 1801 and support rod 4 1804 are based on not interfering with electric hoist assembly 13.

[0036] In one exemplary embodiment, such as Figure 1-2As shown, the control device 19 includes an electrical control cabinet 1901 and an electrical control cabinet 1902; the electrical control cabinet 1901 and the electrical control cabinet 1902 are installed at the upper end of the main beam 1 of the lifting device; the electrical control cabinet 1901 is electrically connected to the electric hoist assembly 13, the pin sensor 14, the hook 15, the emergency release hook 16, the geared motor 902, the pressure plate mechanism 7, and the generator 2; the electrical control cabinet 1902 is electrically connected to the wind turbine 801 and the generator 2.

[0037] In this invention, the function of the first electrical control cabinet 1901 is to control the lifting and lowering of the electric hoist assembly 13, control the extension and retraction of the pin shafts of the hook device 15 and the emergency release device 16, receive data from the pin shaft sensor 14, control the lifting and lowering of the pressure plate mechanism 7, and control the geared motor 902 to realize the rotation of the L-shaped beam and the limit of the proximity switch 20. All controls are controlled independently. The function of the second electrical control cabinet 1902 is to control the wind turbine 801 to retract and extend the rope.

[0038] In one exemplary embodiment, such as Figure 2 and 3 As shown, a proximity switch 20 is connected to the flange at the bottom of the short folding beam 4; the proximity switch 20 is electrically connected to the electrical control cabinet 1901.

[0039] In this invention, the proximity switch 20 prevents the L-shaped beam 11 from rotating too much, thus preventing the lifting device from tilting due to eccentricity; for example... Figure 3 As shown, the rotary reducer 901 drives the adapter 10 and the L-shaped beam 11 to rotate. The adapter 10 has a lug connected to the L-shaped beam 11. When the lug rotates to the contact of the proximity switch 20, it stops rotating.

[0040] In one exemplary embodiment, such as Figure 1-2 As shown, a safety ladder 21 is detachably connected to the side end of the vertical beam 1101; multiple casters 24 are detachably connected to the bottom end of the L-shaped lower beam 1102; the casters 24 have a locking function.

[0041] In one exemplary embodiment, such as Figure 1 , Figure 2 as well as Figure 5 As shown, a camera 22 is detachably connected to the main beam 1 of the lifting device; a camera 23 is detachably connected inside the vertical beam 1101; the camera 22 and the camera 23 are electrically connected to the electrical control cabinet 1901 respectively.

[0042] In this invention, the electrical control cabinet 1901 is also used to control the video visibility of camera 22 and camera 23; camera 22 and camera 23 are electrically connected to the electrical control cabinet 1901 respectively; the function of camera 22 is to confirm the hooking status of the hook device, and the function of camera 23 is to observe and confirm whether the position of the sling is correct; the setting of the two cameras ensures that the hook status and the sling position are visible, preventing lifting hazards.

[0043] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A blade removal tool for offshore wind turbines, characterized in that, include: The main beam of the lifting device (1) is equipped with a generator (2); one side of the main beam of the lifting device (1) is connected to two short folding beams (4) by a pin (3), and the other side is connected to two long folding beams (5) by a pin (3), forming an I-shaped structure; Lifting sling (6); the lifting sling (6) is located at the upper end of the main beam (1) of the lifting device and is detachably connected to the main beam (1); Pressure plate mechanism (7); the pressure plate mechanism (7) is located at the lower end of the main beam (1) of the lifting device; Windproof stabilizing component (8); the windproof stabilizing component (8) is provided in two sets; each set of windproof stabilizing component (8) is detachably connected to the main beam (1) of the lifting device and a short folding beam (4); the rope of the windproof stabilizing component (8) is fixed at a fixed anchor point; Speed ​​reduction mechanism (9); the speed reduction mechanism (9) is detachably connected to the bottom surface of the end of the short folding beam (4) away from the main beam (1) of the lifting device; the lower end of the speed reduction mechanism (9) is detachably connected to an adapter (10). L-shaped beam (11); one end of the L-shaped beam (11) is detachably connected to the adapter (10); Blade fixing assembly; the blade fixing assembly is detachably connected to the short folding beam (4), the long folding beam (5) and the L-shaped beam (11); Control device (19); the control device (19) is electrically connected to the generator (2), windproof stabilizing component (8), pressure plate mechanism (7), deceleration mechanism (9) and blade fixing component respectively.

2. The offshore wind turbine blade dismantling tool according to claim 1, characterized in that: The L-shaped beam (11) includes a vertical beam (1101) and an L-shaped lower beam (1102); The top end of the vertical beam (1101) is detachably connected to the adapter (10), and the bottom end is detachably connected to one end of the L-shaped lower beam (1102); The other end of the L-shaped lower beam (1102) is located at the lower end of the long folded beam (5).

3. The offshore wind turbine blade dismantling tool according to claim 2, characterized in that: The blade fixing assembly includes a sling fixing frame (12), an electric hoist assembly (13), a hook (15), an emergency release hook (16), a load-bearing sling (17), and a hook retainer (18). The sling fixing frame (12) is detachably connected to the top surface of the crossbeam of the L-shaped lower beam (1102); the sling fixing frame (12) is located at the lower end of the long folding beam (5); The electric hoist assembly (13) is provided in four parts, and the four electric hoist assemblies (13) are detachably connected to the bottom ends of the long folding beam (5) and the short folding beam (4), respectively. The lifting block of the electric hoist assembly (13) at the lower end of the long folding beam (5) is detachably connected to a hook (15) via a pin sensor (14); the hook (15) is located at the upper end of the sling fixing frame (12). The lifting block of the electric hoist assembly (13) at the lower end of the short folding beam (4) is detachably connected to an emergency release device (16) via a pin sensor (14). One end of the carrying sling (17) is connected to the sling fixing frame (12), and the other end is connected to the emergency release hook (16); The hook holder (18) is detachably connected to the hook (15) and the electric hoist assembly (13) at the lower end of the long folding beam (5).

4. The offshore wind turbine blade dismantling tool according to claim 3, characterized in that: The windproof stabilizing component (8) includes a wind-catching mechanism (801), a wind-catching guide component one (802), a wind-catching guide component two (803), and a wind-catching guide component three (804). The wind-drawing fan (801) and the wind-drawing guide assembly (802) are fixed to the top surface of the main beam (1); The second wind-guiding component (803) and the third wind-guiding component (804) are respectively fixed to the top surface of the short folding beam (4); The wind-catching rope inside the wind-catching machine (801) passes through the first wind-catching guide component (802), the second wind-catching guide component (803), and the third wind-catching guide component (804) in sequence and is fixed at a fixed anchor point.

5. The offshore wind turbine blade dismantling tool according to claim 4, characterized in that: The deceleration mechanism (9) includes a rotary reducer (901) and a geared motor (902). The rotary reducer (901) is detachably connected to the bottom surface of the short folding beam (4) via a flange; The input shaft of the rotary reducer (901) is connected to the output end of the geared motor (902); The bottom end of the rotary reducer (901) is detachably connected to the adapter (10).

6. The offshore wind turbine blade dismantling tool according to claim 3, characterized in that: The hook holder (18) includes support rod one (1801), support rod two (1802), support rod three (1803) and support rod four (1804). One end of the support rod (1801) is detachably connected to the fixing block of the electric hoist assembly (13) at the lower end of the long folding beam (5), and the other end is hinged to one end of the support rod (1802). The other end of the second support rod (1802) is hinged to one end of the third support rod (1803); the other end of the third support rod (1803) is hinged to one end of the fourth support rod (1804); The other end of the support rod four (1804) is detachably connected to the hook (15).

7. The offshore wind turbine blade dismantling tool according to claim 4, characterized in that: The control device (19) includes electrical control cabinet one (1901) and electrical control cabinet two (1902); The first electrical control cabinet (1901) and the second electrical control cabinet (1902) are located at the upper end of the main beam (1) of the lifting device; The electrical control cabinet (1901) is electrically connected to the electric hoist assembly (13), pin sensor (14), hook (15), emergency release device (16), geared motor (902), pressure plate mechanism (7), and generator (2). The second electrical control cabinet (1902) is electrically connected to the wind turbine (801) and the generator (2).

8. The offshore wind turbine blade dismantling tool according to claim 7, characterized in that: The flange at the bottom of the short folding beam (4) is connected to a proximity switch (20). The proximity switch (20) is electrically connected to the electrical control cabinet (1901).

9. The offshore wind turbine blade dismantling tool according to claim 2, characterized in that: A safety ladder (21) is detachably connected to the side end of the vertical beam (1101). The bottom end of the L-shaped lower beam (1102) is detachably connected to multiple casters (24).

10. A blade removal tool for offshore wind turbines according to claim 7, characterized in that: The main beam (1) of the lifting device is detachably connected to a camera (22); A second camera (23) is detachably connected inside the vertical beam (1101); The first camera (22) and the second camera (23) are electrically connected to the first electrical control cabinet (1901).

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