Offshore wind turbine installation vessel lifting equipment

Abstract

This invention relates to the field of offshore wind power technology and discloses a marine lifting device for offshore wind power installation, comprising: a balance hook mechanism, a liquid-filled drive mechanism attached to the bottom of the balance hook mechanism, an internal support docking mechanism installed on the surface of the liquid-filled drive mechanism, and a damping anti-sway mechanism at the bottom of the liquid-filled drive mechanism. This marine lifting device for offshore wind power installation can, during use, inject a working medium into the liquid-filled drive mechanism, causing it to expand and deform in a controllable manner, thereby squeezing the internal support docking mechanism to radially expand inside the tower, forming an internal support structure that tightly fits the inner wall of the tower. Compared to traditional external lifting methods that rely on hooks and lugs, this internal support design can evenly distribute the force on the less corrosive inner wall of the tower, effectively avoiding structural damage caused by localized strength reduction of the tower wall due to marine corrosion, thus significantly improving the safety and reliability during maintenance and dismantling.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power technology, specifically to a lifting device for offshore wind power installation vessels. Background Technology

[0002] Offshore wind power refers to a method of generating electricity by constructing wind farms at sea. It is characterized by abundant resources, high power generation utilization hours, no land occupation, and suitability for large-scale development, and represents the latest frontier in global wind power development.

[0003] During the installation phase of wind turbine towers, the common practice is to use lugs mounted on the surface of the towers to support the hooks for connection. However, in subsequent maintenance and dismantling operations, the lugs are susceptible to corrosion due to the long-term exposure of the towers to the marine environment, which significantly reduces their mechanical properties. If the original hook-lug method is continued for hoisting and connection, there is a significant safety risk of breakage due to insufficient strength. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a marine hoisting device for offshore wind power installation, which solves the problems mentioned in the background.

[0005] This invention provides the following technical solution: a marine lifting device for offshore wind power installation, comprising: a balance hook mechanism, the balance hook mechanism including a transverse frame, a liquid-filled drive mechanism hooked to the bottom of the balance hook mechanism, an inner support docking mechanism mounted on the surface of the liquid-filled drive mechanism, and a damping anti-sway mechanism provided at the bottom of the liquid-filled drive mechanism; the liquid-filled drive mechanism includes a first inner main pipe, a second inner main pipe, and a corrugated hydraulic bladder; the first inner main pipe is located below the transverse frame, the second inner main pipe is located at the end of the first inner main pipe away from the transverse frame, and the corrugated hydraulic bladder is located on the surface between the first and second inner main pipes; the inner support docking mechanism includes a first inverted support rod, a first push-pull connecting rod, and a first sliding... The system comprises a sliding seat, a second inverted support rod, a second push-pull connecting rod, a second sliding seat, and end supports. The first sliding seat is movably fitted onto the outer surface of the first inner main tube. The first inverted support rod is rotatably connected to the surface of the first sliding seat. The first push-pull connecting rod is rotatably connected to the surface of the first inverted support rod. The second sliding seat is movably fitted onto the outer surface of the second inner main tube. The second inverted support rod is rotatably connected to the surface of the second sliding seat. The second inverted support rod is rotatably connected to the surface of the second inverted support rod. The second inverted support rod is parallel to the first inverted support rod. The end supports are rotatably connected to one end of the first inverted support rod and one end of the second inverted support rod, respectively. The damping and sway reduction mechanism includes a counterweight ball located below the second inner main tube.

[0006] Preferably, the fluid-filled drive mechanism further includes an upper shaft seat, a lower shaft seat, and a return spring. The upper shaft seat is fixedly sleeved on the surface of the first inner main tube, and the lower shaft seat is fixedly sleeved on the surface of the second inner main tube. The surface of the upper shaft seat is rotatably connected to the end of the first push-pull link away from the first inverted support rod, and the surface of the lower shaft seat is rotatably connected to one end of the second inverted support rod. There are two return springs, and the two return springs are respectively movably sleeved on the surface of the first inverted support rod and the surface of the first push-pull link. The two return springs are respectively located between the first inverted support rod and the first push-pull link, and between the second inverted support rod and the second push-pull link.

[0007] Preferably, the fluid-filled drive mechanism further includes a drain connector, a guide pipe, an end connector, a filling valve head, and a sleeve ring. The drain connector is fixedly connected between the first inner main pipe and the second inner main pipe, and the drain connector is located inside the bellows hydraulic bladder. The end connector is fixedly connected to the end of the first inner main pipe away from the second inner main pipe. The guide pipe is fixedly connected between the drain connector and the end connector. The filling valve head is fixedly installed on the surface of the end connector. The sleeve ring is located inside the bellows hydraulic bladder, and the bellows hydraulic bladder is fixedly connected between the first inner main pipe and the second inner main pipe through the sleeve ring.

[0008] Preferably, the liquid-filled drive mechanism further includes a hanging cable, a sliding block, and a fixing spring. The hanging cable is fixedly connected to one end of the end connector, and a bend is provided in the middle of the hanging cable. The sliding block is movably sleeved on the surface of the hanging cable, and the fixing spring is movably sleeved on the surface of the hanging cable, with the fixing spring located between the sliding block and the end connector.

[0009] Preferably, the inner support docking mechanism further includes a first connecting push plate, which is integrally disposed on one side of the first sliding seat, and the surface of the first connecting push plate is fixedly connected to the surface of one end of the corrugated hydraulic bladder.

[0010] Preferably, the inner support docking mechanism further includes a second connecting push plate, which is integrally disposed on one side of the second sliding seat, and the surface of the second connecting push plate is fixedly connected to the surface of the corrugated hydraulic bladder away from the first connecting push plate.

[0011] Preferably, the internal support docking mechanism further includes a sliding post, a receiving groove, a connecting sleeve, and a rubber sleeve. The sliding post is integrally disposed on the surface of the end support block. The receiving groove is embedded in one side of the end support block, and the two end support blocks on the same side are staggered. The surface of the sliding post is slidably connected to the inner wall of the receiving groove on the same side. The connecting sleeve is fixedly inserted into the interior of the end support block, and the rubber sleeve is fixedly connected between the two end support blocks on the same side.

[0012] Preferably, the inner support docking mechanism further includes a first pad, a second pad, and an anti-slip pad. The first pad and the second pad are respectively fixedly connected to the surfaces of the plurality of end support blocks, and the anti-slip pad is fixedly connected to the surfaces of the first pad and the second pad.

[0013] Preferably, the damping and sway reduction mechanism further includes a connecting column, a lower extension cable, and a rubber buffer sleeve. The connecting column is fixedly connected to the inside of the second inner tube, the lower extension cable is fixedly inserted between the connecting column and the counterweight ball, and the rubber buffer sleeve is fixedly sleeved on the surface of the counterweight ball.

[0014] Preferably, the balancing hook mechanism further includes a suspension cable and a hook. The suspension cable is fixedly connected to the surfaces at both ends of the horizontal frame, and the hook is fixedly connected to the bottom in the middle of the horizontal frame, and the hook is engaged with the suspension cable.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This offshore wind turbine installation vessel, through its liquid-filled drive mechanism, internal support docking mechanism, damping and sway reduction mechanism, and balance hook mechanism, can inject working medium into the liquid-filled drive mechanism during use, causing it to expand and deform in a controlled manner. This, in turn, compresses the internal support docking mechanism to expand radially inside the tower, forming an internal support structure that fits tightly against the inner wall of the tower. Compared to traditional external lifting methods that rely on hooks and lugs, this internal support design can evenly distribute the force on the less corrosive inner wall of the tower, effectively avoiding structural damage caused by localized strength reduction of the tower wall due to marine corrosion. This significantly improves the safety and reliability of maintenance and dismantling processes.

[0016] This offshore wind power installation vessel lifting device, through its first inner main pipe, second inner main pipe, corrugated hydraulic bladder, upper shaft seat, lower shaft seat, return spring, drain connector, guide pipe, end connector, filling valve head, sleeve ring, sling, sliding block, and fixing spring, can, during use, fill the corrugated hydraulic bladder with liquid, causing the corrugated hydraulic bladder to produce controllable axial displacement, thereby pushing the inner support docking mechanism to unfold radially and form an inner support that fits tightly against the inner wall of the tower.

[0017] This offshore wind power installation vessel lifting device, through the linkage of the first and second inverted support rods, the second push-pull connecting rod, the second sliding seat, the second inverted support rod, the second push-pull connecting rod, the second sliding seat, the end support block, the first connecting push plate, the second connecting push plate, the insert sliding column, the receiving slide groove, the connecting insert cylinder, the rubber sleeve, the first pad block, the second pad block, and the anti-slip pad, can, during use, expand the end support block and the anti-slip pad radially through the linkage of the first and second inverted support rods, forming a stable support for the inner wall of the tower. Furthermore, thanks to the special structural design of the first and second inverted support rods, the support state can be automatically locked and further strengthened under the weight of the tower, thereby achieving reliable internal support for the tower.

[0018] This offshore wind power installation vessel lifting device, through its counterweight ball, connecting column, lower extension cable, and rubber buffer sleeve, can achieve balance with the main structure in an unloaded state by using the counterweight ball to generate reverse damping based on the principle of inertia. The resulting restoring torque can effectively counteract the swaying of the liquid-filled drive mechanism and the internal support docking mechanism, thereby significantly enhancing the device's anti-sway capability.

[0019] This offshore wind power installation vessel lifting device, through its horizontal frame, suspension cables, and hooks, enables rapid disassembly and functional switching of the liquid-filled drive mechanism, internal support docking mechanism, and damping anti-sway mechanism during operation. This ensures that the device can be flexibly converted to a general suspension state according to working conditions, so as to maintain a stable and continuous normal lifting operation capability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure at the location of the liquid-filled drive mechanism and the inner support docking mechanism of the present invention; Figure 3 This is a structural diagram showing the location of the liquid-filled drive mechanism and the inner support docking mechanism of the present invention. Figure 4 This is a diagram showing the internal structure of the end support block of the present invention; Figure 5 This is a schematic diagram of the structure at the location of the corrugated hydraulic bladder of the present invention; Figure 6 This is a schematic diagram of the structure at the positions of the first connecting push plate and the second connecting push plate of the present invention; Figure 7 This is a diagram showing the internal structure of the first internal main tube and the second internal main tube of the present invention.

[0021] In the picture: 101. First internal main pipe; 102. Second internal main pipe; 103. Corrugated hydraulic bladder; 104. Upper shaft seat; 105. Lower shaft seat; 106. Return spring; 107. Drain connector; 108. Guide pipe; 109. End connector; 110. Filling valve head; 111. Sleeve ring; 112. Hanging sling; 113. Sliding lock block; 114. Fixing spring; 201. First inverted support rod; 202. First push-pull connecting rod; 203. First sliding seat; 204. Second inverted support rod; 20 5. Second push-pull linkage; 206. Second sliding seat; 207. End support block; 208. First connecting push plate; 209. Second connecting push plate; 210. Insert sliding column; 211. Storage groove; 212. Connecting insert; 213. Rubber sleeve; 214. First pad block; 215. Second pad block; 216. Anti-slip pad; 301. Counterweight ball; 302. Connecting column; 303. Lower extension cable; 304. Rubber buffer sleeve; 401. Horizontal frame; 402. Suspension cable; 403. Hanging hook. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-7A marine lifting device for offshore wind power installation includes: a balance hook mechanism, which includes a horizontal frame 401. A hydraulically inflatable drive mechanism is attached to the bottom of the balance hook mechanism. An internal support docking mechanism is installed on the surface of the hydraulically inflatable drive mechanism. A damping and anti-sway mechanism is provided at the bottom of the hydraulically inflatable drive mechanism. The hydraulically inflatable drive mechanism includes a first inner main pipe 101, a second inner main pipe 102, and a corrugated hydraulic bladder 103. The first inner main pipe 101 is located below the horizontal frame 401, and the second inner main pipe 102 is located at the end of the first inner main pipe 101 away from the horizontal frame 401. The hydraulic bladder 103 is located on the surface between the first inner tube 101 and the second inner tube 102. The internal support docking mechanism includes a first inverted support rod 201, a first push-pull connecting rod 202, a first sliding seat 203, a second inverted support rod 204, a second push-pull connecting rod 205, a second sliding seat 206, and an end support block 207. The first sliding seat 203 is movably sleeved on the outer surface of the first inner tube 101. The first inverted support rod 201 is rotatably connected to the surface of the first sliding seat 203. The first push-pull connecting rod 202 is rotatably connected to the surface of the first inverted support rod 201. The second sliding seat 206... 06 is movably fitted onto the outer surface of the second inner tube 102. The second inverted support rod 204 is rotatably connected to the surface of the second sliding seat 206. The second inverted support rod 204 is rotatably connected to the surface of the first inverted support rod 201. The second inverted support rod 204 is distributed parallel to the first inverted support rod 201. The end support block 207 is rotatably connected to one end of the first inverted support rod 201 and one end of the second inverted support rod 204, respectively. The damping and sway reduction mechanism includes a counterweight ball 301, which is located below the second inner tube 102. It is driven by a liquid-filled drive mechanism, an inner support docking mechanism, and a damping mechanism. The anti-sway mechanism and the balancing hook mechanism can inject working medium into the liquid-filled drive mechanism during use, causing it to expand and deform in a controlled manner. This, in turn, compresses the inner support docking mechanism to expand radially inside the tower, forming an internal support structure that fits tightly against the inner wall of the tower. Compared with the traditional external hoisting method that relies on hooks and lugs, this internal support design can evenly distribute the force on the less corrosive inner wall of the tower, effectively avoiding structural damage caused by the localized decrease in the strength of the tower wall due to marine corrosion. This significantly improves the safety and reliability during maintenance and dismantling.

[0024] The liquid-filled drive mechanism includes an upper shaft seat 104, a lower shaft seat 105, and a return spring 106. The upper shaft seat 104 is fixedly sleeved on the surface of the first inner main tube 101, and the lower shaft seat 105 is fixedly sleeved on the surface of the second inner main tube 102. The surface of the upper shaft seat 104 is rotatably connected to the end of the first push-pull connecting rod 202 away from the first inverted support rod 201, and the surface of the lower shaft seat 105 is rotatably connected to one end of the second inverted support rod 204. There are two return springs 106, and the two return springs 106 are respectively movably sleeved on the surface of the first inverted support rod 201 and the surface of the first push-pull connecting rod 202. The two return springs 106 are respectively located between the first inverted support rod 201 and the first push-pull connecting rod 202 and between the second inverted support rod 204 and the second push-pull connecting rod 205.

[0025] The liquid-filled drive mechanism further includes a drain connector 107, a guide pipe 108, an end connector 109, a filling valve head 110, and a sleeve ring 111. The drain connector 107 is fixedly connected between the first inner main pipe 101 and the second inner main pipe 102, and the drain connector 107 is located inside the corrugated hydraulic bladder 103. The end connector 109 is fixedly connected to the end of the first inner main pipe 101 away from the second inner main pipe 102. The guide pipe 108 is fixedly connected between the drain connector 107 and the end connector 109. The filling valve head 110 is fixedly installed on the surface of the end connector 109. The sleeve ring 111 is located inside the corrugated hydraulic bladder 103, and the corrugated hydraulic bladder 103 is fixedly connected between the first inner main pipe 101 and the second inner main pipe 102 through the sleeve ring 111.

[0026] The fluid-filled drive mechanism also includes a hanging cable 112, a sliding block 113, and a fixing spring 114. The hanging cable 112 is fixedly connected to one end of the end connector 109, and a bend is provided in the middle of the hanging cable 112. The sliding block 113 is movably sleeved on the surface of the hanging cable 112, and the fixing spring 114 is movably sleeved on the surface of the hanging cable 112, and the fixing spring 114 is located between the sliding block 113 and the end connector 109. The mechanism is connected by a first inner main pipe 101, a second inner main pipe 102, and a corrugated... The hydraulic bladder 103, upper shaft seat 104, lower shaft seat 105, return spring 106, drain connector 107, liquid guide pipe 108, end connector 109, filling valve head 110, sleeve ring 111, hanging rope 112, sliding lock block 113 and fixing spring 114 can, during use, fill the corrugated hydraulic bladder 103 with liquid, so that the corrugated hydraulic bladder 103 can produce controllable axial displacement, thereby pushing the inner support docking mechanism to unfold radially and form an inner support that fits tightly against the inner wall of the tower.

[0027] The internal support docking mechanism also includes a first connecting push plate 208, which is integrally disposed on one side of the first sliding seat 203, and the surface of the first connecting push plate 208 is fixedly connected to the surface of one end of the corrugated hydraulic bladder 103.

[0028] The internal support docking mechanism also includes a second connecting push plate 209, which is integrally disposed on one side of the second sliding seat 206, and the surface of the second connecting push plate 209 is fixedly connected to the surface of the corrugated hydraulic bladder 103 away from the first connecting push plate 208.

[0029] The internal support docking mechanism also includes a sliding pin 210, a receiving groove 211, a connecting sleeve 212, and a rubber sleeve 213. The sliding pin 210 is integrally set on the surface of the end support block 207. The receiving groove 211 is embedded in one side of the end support block 207, and the two end support blocks 207 on the same side are staggered. The surface of the sliding pin 210 is slidably connected to the inner wall of the receiving groove 211 on the same side. The connecting sleeve 212 is fixedly inserted into the inside of the end support block 207, and the rubber sleeve 213 is fixedly connected between the two end support blocks 207 on the same side.

[0030] The internal support docking mechanism further includes a first pad 214, a second pad 215, and an anti-slip pad 216. The first pad 214 and the second pad 215 are respectively fixedly connected to the surfaces of multiple end support blocks 207. The anti-slip pad 216 is fixedly connected to the surfaces of the first pad 214 and the second pad 215. The mechanism is connected via a first inverted support rod 201, a first push-pull connecting rod 202, a first sliding seat 203, a second inverted support rod 204, a second push-pull connecting rod 205, a second sliding seat 206, end support blocks 207, a first connecting push plate 208, and a second connecting push plate 209. 09. Inserting sliding column 210, receiving sliding groove 211, connecting insert 212, rubber sleeve 213, first pad 214, second pad 215 and anti-slip pad 216, can, during use, through the linkage of the first inverted support rod 201 and the second inverted support rod 204, extend the end support block 207 and the anti-slip pad 216 radially to form a stable support for the inner wall of the tower. Furthermore, with the special structural design of the first inverted support rod 201 and the second inverted support rod 204, the support state can be automatically locked and further enhanced by the gravity of the tower, thereby achieving reliable internal support for the tower.

[0031] The damping and sway reduction mechanism also includes a connecting column 302, a lower extension cable 303, and a rubber buffer sleeve 304. The connecting column 302 is fixedly connected to the inside of the second inner main tube 102. The lower extension cable 303 is fixedly inserted between the connecting column 302 and the counterweight ball 301. The rubber buffer sleeve 304 is fixedly sleeved on the surface of the counterweight ball 301. Through the counterweight ball 301, connecting column 302, lower extension cable 303, and rubber buffer sleeve 304, the counterweight ball 301 can form a balance with the main structure in the unloaded state by generating reverse damping based on the principle of inertia. The restoring torque generated can effectively counteract the swaying of the liquid-filled drive mechanism and the internal support docking mechanism, thereby significantly enhancing the anti-swaying ability of the device.

[0032] The balance hook mechanism also includes a suspension cable 402 and a hook 403. The suspension cable 402 is fixedly connected to the surfaces at both ends of the horizontal frame 401, and the hook 403 is fixedly connected to the bottom of the middle of the horizontal frame 401. The hook 403 is hooked to the hanging cable 112. Through the horizontal frame 401, suspension cable 402 and hook 403, the liquid-filled drive mechanism, the internal support docking mechanism and the damping anti-sway mechanism can be quickly disassembled and their functions switched during operation. This ensures that the device can be flexibly converted to a general suspension state according to the working conditions, so as to maintain a stable and continuous normal lifting operation capability.

[0033] Working principle: When in use, the suspension cable 402 is installed on the crane, the sliding lock block 113 is lowered so that the bend of the hanging cable 112 is exposed, the bend of the hanging cable 112 is fitted onto the surface of the hook 403, and then the sliding lock block 113 is released, the fixing spring 114 is reset and the sliding lock block 113 is pushed to press and fix the hook 403. Then, the device is placed inside the top of the tower. The filling valve head 110 is connected to the output pipe of the external water pump. Water is then injected into the guide pipe 108, causing the corrugated hydraulic bladder 103 to expand axially. When the corrugated hydraulic bladder 103 expands, it will push the first connecting push plate 208 and the second connecting push plate 209 on both sides to slide synchronously to both ends. When the first sliding seat 203 slides, it pushes the first inverted support rod 201 to unfold. When the second connecting push plate 209 slides, it pushes the second inverted support rod 204 to unfold through the second push-pull connecting rod 205. This allows the end support blocks 207 at the ends of the first inverted support rod 201 and the second inverted support rod 204 to unfold radially along the tower until the anti-slip pad 216 is in close contact with the inner wall of the tower, thus achieving the docking of the device with the tower. After docking, the external water pump is removed. During hoisting, due to the friction of the anti-slip pad 216, the weight of the tower and the tension of the first inner tube 101 and the second inner tube 102 will cause the second inverted support rod 204 to tend to unfold, thereby increasing the pressure of the anti-slip pad 216 on the tower and further increasing the friction, thus forming a positive feedback of the docking effect. When disconnecting, the filling valve head 110 is opened to drain water. The return spring 106 returns to its original position and squeezes the first connecting push plate 208 and the second connecting push plate 209 to close in the middle, causing the bellows hydraulic bladder 103 to contract. At the same time, the two pull the first inverted support rod 201 and indirectly pull the second inverted support rod 204 through the second push-pull connecting rod 205, causing the first inverted support rod 201 and the second inverted support rod 204 to contract, thereby realizing the removal of the device. When the device is suspended without load, if the liquid-filled drive mechanism, the internal support docking mechanism, and the balance hook mechanism sway, the rubber buffer sleeve 304 will suppress the swaying by forming a reverse damping through the lower extension cable 303, thereby improving the stability of the device.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting arrangement for an offshore wind farm installation vessel, comprising: A balancing hook mechanism, comprising a horizontal frame (401), characterized in that a liquid-filled drive mechanism is attached to the bottom of the balancing hook mechanism, an inner support docking mechanism is installed on the surface of the liquid-filled drive mechanism, and a damping anti-sway mechanism is provided at the bottom of the liquid-filled drive mechanism. The fluid-filled drive mechanism includes a first inner tube (101), a second inner tube (102), and a corrugated hydraulic bladder (103). The first inner tube (101) is located below the transverse frame (401), the second inner tube (102) is located at the end of the first inner tube (101) away from the transverse frame (401), and the corrugated hydraulic bladder (103) is located on the surface between the first inner tube (101) and the second inner tube (102). The internal support docking mechanism includes a first inverted support rod (201), a first push-pull connecting rod (202), a first sliding seat (203), a second inverted support rod (204), a second push-pull connecting rod (205), a second sliding seat (206), and an end support block (207). The first sliding seat (203) is movably sleeved on the outer surface of the first inner main tube (101). The first inverted support rod (204) is rotatably connected to the surface of the first sliding seat (205). The first push-pull connecting rod (206) is rotatably connected to the surface of the first inverted support rod (207). On the surface of 01), the second sliding seat (206) is movably sleeved on the outer surface of the second inner tube (102), the second inverted support rod (204) is rotatably connected to the surface of the second sliding seat (206), the second inverted support rod (204) is rotatably connected to the surface of the second inverted support rod (204), the second inverted support rod (204) is distributed parallel to the first inverted support rod (201), and the end support block (207) is rotatably connected to one end of the first inverted support rod (201) and one end of the second inverted support rod (204); The damping and sway reduction mechanism includes a counterweight ball (301) located below the second inner tube (102); The liquid-filled drive mechanism further includes an upper shaft seat (104), a lower shaft seat (105), and a return spring (106). The upper shaft seat (104) is fixedly sleeved on the surface of the first inner main tube (101), and the lower shaft seat (105) is fixedly sleeved on the surface of the second inner main tube (102). The surface of the upper shaft seat (104) is rotatably connected to the end of the first push-pull connecting rod (202) away from the first inverted support rod (201), and the surface of the lower shaft seat (105) is rotatably connected to one end of the second inverted support rod (204). There are two return springs (106), and the two return springs (106) are respectively movably sleeved on the surface of the first inverted support rod (201) and the surface of the first push-pull connecting rod (202). The two return springs (106) are respectively located between the first inverted support rod (201) and the first push-pull connecting rod (202) and between the second inverted support rod (204) and the second push-pull connecting rod (205). The fluid-filled drive mechanism further includes a drain connector (107), a guide pipe (108), an end connector (109), a filling valve head (110), and a sleeve ring (111). The drain connector (107) is fixedly connected between the first inner main pipe (101) and the second inner main pipe (102), and the drain connector (107) is located inside the corrugated hydraulic bladder (103). The end connector (109) is fixedly connected to the end of the first inner main pipe (101) away from the second inner main pipe (102). The guide pipe (108) is fixedly connected between the drain connector (107) and the end connector (109). The filling valve head (110) is fixedly installed on the surface of the end connector (109). The sleeve ring (111) is located inside the corrugated hydraulic bladder (103), and the corrugated hydraulic bladder (103) is fixedly connected between the first inner main pipe (101) and the second inner main pipe (102) through the sleeve ring (111).

2. Offshore wind farm installation vessel hoisting arrangement according to claim 1, characterized in that, The liquid-filled drive mechanism also includes a hanging cable (112), a sliding block (113), and a fixing spring (114). The hanging cable (112) is fixedly connected to one end of the end connector (109), and a bend is provided in the middle of the hanging cable (112). The sliding block (113) is movably sleeved on the surface of the hanging cable (112), and the fixing spring (114) is movably sleeved on the surface of the hanging cable (112), and the fixing spring (114) is located between the sliding block (113) and the end connector (109).

3. The marine lifting device for offshore wind power installation according to claim 1, characterized in that, The internal support docking mechanism also includes a first connecting push plate (208), which is integrally disposed on one side of the first sliding seat (203), and the surface of the first connecting push plate (208) is fixedly connected to the surface of one end of the corrugated hydraulic bladder (103).

4. The marine lifting device for offshore wind power installation according to claim 3, characterized in that, The inner support docking mechanism also includes a second connecting push plate (209), which is integrally disposed on one side of the second sliding seat (206), and the surface of the second connecting push plate (209) is fixedly connected to the surface of the corrugated hydraulic bladder (103) away from the first connecting push plate (208).

5. The marine lifting device for offshore wind power installation according to claim 4, characterized in that, The internal support docking mechanism also includes a sliding pin (210), a receiving groove (211), a connecting sleeve (212), and a rubber sleeve (213). The sliding pin (210) is integrally disposed on the surface of the end support block (207). The receiving groove (211) is embedded in one side of the end support block (207), and the two end support blocks (207) on the same side are staggered. The surface of the sliding pin (210) is slidably connected to the inner wall of the receiving groove (211) on the same side. The connecting sleeve (212) is fixedly inserted into the inside of the end support block (207). The rubber sleeve (213) is fixedly connected between the two end support blocks (207) on the same side.

6. The marine lifting device for offshore wind power installation according to claim 5, characterized in that, The inner support docking mechanism further includes a first pad (214), a second pad (215), and an anti-slip pad (216). The first pad (214) and the second pad (215) are respectively fixedly connected to the surfaces of multiple end support blocks (207), and the anti-slip pad (216) is fixedly connected to the surfaces of the first pad (214) and the second pad (215).

7. The marine lifting device for offshore wind power installation according to claim 1, characterized in that, The damping and sway reduction mechanism also includes a connecting column (302), a lower extension cable (303), and a rubber buffer sleeve (304). The connecting column (302) is fixedly connected to the inside of the second inner tube (102), the lower extension cable (303) is fixedly inserted between the connecting column (302) and the counterweight ball (301), and the rubber buffer sleeve (304) is fixedly sleeved on the surface of the counterweight ball (301).

8. The marine lifting device for offshore wind power installation according to claim 1, characterized in that, The balance hook mechanism also includes a suspension cable (402) and a hook (403). The suspension cable (402) is fixedly connected to the surfaces at both ends of the horizontal frame (401), and the hook (403) is fixedly connected to the bottom of the middle of the horizontal frame (401), and the hook (403) is hooked to the hanging cable (112).

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