Manned boarding device of offshore wind turbine operation auxiliary ship

Abstract

The invention relates to the technical field of offshore wind power construction, operation and maintenance equipment, in particular to an offshore wind turbine operation auxiliary ship manned boarding device which comprises a ship body, berthing restraining equipment is installed on the ship body, and the berthing restraining equipment is suitable for being connected with a wind turbine platform in a matched mode; the dynamic positioning compensation equipment comprises a fixed propeller mounted at the bottom of the ship body and a full-revolving propeller mounted at the tail of the ship body; and the boarding equipment is mounted on the ship body and is arranged close to the edge of the ship body. According to the manned boarding device of the offshore wind turbine operation auxiliary ship, stability is improved through locking constraint of berthing constraint equipment, irregular movement of a ship body under the action of external force is compensated through power propulsion of power positioning compensation equipment, and relative movement between the ship body and a wind turbine platform can be greatly reduced; and the safety of people entering the fan platform from the boarding equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power construction and operation and maintenance equipment, and in particular to a manned boarding device for an offshore wind turbine operation auxiliary ship. Background Art

[0002] With the improvement of human technology for the development of marine natural resources, offshore wind power has developed rapidly, gradually moving from shallow sea to deep sea. When the water depth increases to more than 50 meters, large fixed wind turbines and floating wind turbines are widely used. Floating wind turbines usually use catenary mooring cables, and the length of the mooring cables is left with a margin to allow the floating foundation to maintain freedom of movement within a certain range. The environmental loads imposed on the wind, waves, and currents on the wind turbines will intensify the movement of the floating foundation, greatly increasing the difficulty of boarding and operating offshore floating wind turbines.

[0003] At present, for fixed wind turbines, the auxiliary ship is usually used to create conditions for boarding. The shaking of the auxiliary ship makes it difficult for people to get on and off. For floating offshore wind turbines, the boarding method mainly relies on helicopters to airdrop technicians to the top of the cabin or transport technicians by auxiliary ships to the floating foundation, through the floating wind turbine buoys, and through the ladders preset on the tower to climb up to the main engine cabin. The former has high requirements on the helicopter pilot's operating skills and weather environment, which greatly increases the operation and maintenance costs; while the latter requires that the auxiliary ship be as close to the floating foundation as possible and use dynamic positioning to keep it in a specific position, and send personnel to the buoy of the floating foundation through the cloud ladder. Although a six-degree-of-freedom compensation system can be installed on the cloud ladder to offset the shaking of the auxiliary ship to stabilize the cloud ladder, since both the wind turbine and the auxiliary ship have freedom of movement, the device cannot compensate for the plane movement of the auxiliary ship, and the auxiliary ship and the wind turbine are very likely to collide and shake during operation, causing the cloud ladder to vibrate and bring hidden dangers to personnel safety. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of high safety risk in the prior art of transporting personnel or items from an auxiliary ship to a wind turbine at sea, thereby providing a manned boarding device for an offshore wind turbine operation auxiliary ship.

[0005] In order to solve the above technical problems, the present invention provides a manned boarding device for an offshore wind turbine operation auxiliary ship, comprising:

[0006] A ship body, on which a berthing restraint device is installed, and the berthing restraint device is suitable for being connected with the wind turbine platform;

[0007] Dynamic positioning compensation equipment, which includes a fixed propeller installed at the bottom of the ship body and an azimuth propeller installed at the stern of the ship body;

[0008] The boarding device is installed on the ship body, and the boarding device is arranged close to the edge of the ship body.

[0009] Optionally, the berthing restraint device includes a berthing fender assembly and a locking mechanism. The berthing fender assembly is installed on the side of the hull, and the locking mechanism is installed between the boarding device and the edge of the hull close to the boarding device. A locking mechanism is provided on the locking mechanism extending toward the outside of the hull, and the locking mechanism is suitable for cooperating with the wind turbine platform to lock.

[0010] Optionally, the locking mechanism comprises:

[0011] A base is fixedly mounted on the ship body, one end of the locking mechanism is fixedly mounted on the base, and the other end extends away from the base;

[0012] The locking assembly includes a clamp arm, a pair of main clamps and a pair of auxiliary clamps, one end of the clamp arm is fixedly connected to the base base, and the other end extends in a direction away from the base base, the main clamp is rotatably mounted on the clamp arm, and the auxiliary clamp is rotatably mounted on the main clamp;

[0013] The hydraulic assembly includes a main telescopic support rod and a secondary telescopic support rod. One end of the main telescopic support rod is hinged to the clamp arm, and the other end is hinged to the main clamp. One end of the secondary telescopic support rod is hinged to the main clamp, and the other end is hinged to the secondary clamp. The main telescopic support rod and the secondary telescopic support rod telescope to drive the main clamp and the secondary clamp to open or close.

[0014] Optionally, the hydraulic assembly further comprises a locking structure, which comprises:

[0015] A locking motor is installed at one end of one of the auxiliary clamps away from the main clamp, and a transmission gear is installed at the output end of the locking motor;

[0016] A transmission screw is rotatably mounted on a secondary clamp equipped with a locking motor, and the transmission screw is meshed with a transmission gear;

[0017] A threaded through hole is arranged on the other pair of clamps, and one end of the transmission screw away from the locking motor is suitable for threaded locking cooperation with the threaded through hole.

[0018] Optionally, the boarding equipment includes:

[0019] The moving mechanism comprises a parallel track fixedly mounted on the ship body, a moving member mounted in cooperation with the parallel track, and a moving drive motor driving the moving member to move in translation on the parallel track;

[0020] A lifting mechanism is installed on the moving part, and the lifting mechanism is suitable for translational movement on the ship body driven by the moving part;

[0021] The passenger car is fixedly installed on the top of the lifting mechanism, and the passenger car is suitable for lifting and lowering movement driven by the lifting mechanism.

[0022] Optionally, an elastic buffer ladder is installed on one side of the passenger car, and the elastic buffer ladder includes a ladder frame and a buffer strut. One end of the ladder frame is cooperatively connected to the passenger car, and the other end is a hollow structure. The buffer strut is slidably installed at the end of the ladder frame away from the passenger car, and a buffer spring is installed between the buffer strut and the ladder frame.

[0023] Optionally, the buffer spring includes an inner spring and an outer spring, one end of the inner spring is connected to the inner cavity of the ladder frame, and the other end is connected to one end of the buffer support rod extending to the inside of the ladder frame, the outer spring is sleeved and installed on the buffer support rod, one end of the outer spring is connected to the buffer support rod, and the other end is connected to the ladder frame.

[0024] Optionally, it also includes an elastic ladder retracting and extending mechanism, which includes a slidably matched limiting slide groove and a limiting slider, the limiting slider is fixedly connected to the elastic buffer ladder, and the limiting slide groove is fixedly connected to the passenger car.

[0025] Optionally, the elastic ladder retracting and extending mechanism also includes a retracting and extending driving motor, the output end of the retracting and extending driving motor drives a winch body installed, a steel wire rope is wound around the winch body, and one end of the steel wire rope is fixedly connected to the limiting slider.

[0026] Optionally, the berthing fender assembly includes a fender tire installed on the side of the hull and a first pressure sensor installed in the fender tire.

[0027] The technical solution of the present invention has the following advantages:

[0028] 1. The manned boarding device of the offshore wind turbine operation auxiliary ship provided by the present invention uses a berthing restraint device to lock the ship body with one of the buoys of the floating wind turbine platform or the tower of the fixed wind turbine platform. After adding the restraint, the relative movement between the wind turbine platform and the ship body is reduced, which reduces the difficulty of boarding and ensures safety. A dynamic positioning compensation device is set at the bottom of the ship body, including a fixed propeller installed at the bottom of the ship body and a full-rotation propeller installed at the tail of the ship body. When the ship body and the wind turbine platform form a restraint, the longitudinal and transverse movement of the wind turbine during operation and maintenance can be compensated to a large extent, avoiding large shaking of the floating wind turbine tower. By utilizing the locking restraint of the berthing restraint device to improve stability and the dynamic propulsion of the dynamic positioning compensation device to compensate for the irregular movement of the ship body under the action of external forces, the relative movement between the ship body and the wind turbine platform can be greatly reduced, and the safety of personnel entering the wind turbine platform from the boarding device can be improved.

[0029] 2. The manned boarding device for the offshore wind turbine operation auxiliary ship provided by the present invention is provided with a retractable elastic buffer ladder. When boarding, the buffer support rod of the elastic buffer ladder contacts the buoy on the top of the floating wind turbine or the platform set on the fixed wind turbine tower. The relative shaking caused by the movement of the floating wind turbine and the auxiliary ship can be offset by the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the working status of the manned boarding device of the offshore wind turbine operation auxiliary vessel provided in an embodiment of the present invention.

[0032] Figure 2 It is a schematic structural diagram of a manned boarding device for an offshore wind turbine operation assistance vessel provided in an embodiment of the present invention.

[0033] Figure 3 This is a schematic structural diagram from another angle of the manned boarding device of the offshore wind turbine operation assistance vessel provided in an embodiment of the present invention.

[0034] Figure 4 It is a schematic structural diagram of a moving mechanism provided in an embodiment of the present invention.

[0035] Figure 5 It is a structural schematic diagram of the coordinated connection between the elastic buffer ladder and the elastic ladder retracting and extending mechanism provided in an embodiment of the present invention.

[0036] Figure 6 It is a schematic diagram of the structure of the boarding equipment provided in the embodiment of the present invention.

[0037] Figure 7 It is a schematic structural diagram of the locking mechanism provided in an embodiment of the present invention.

[0038] Figure 8 It is a schematic structural diagram of a locking assembly provided in an embodiment of the present invention.

[0039] Fig. 9 It is a schematic structural diagram of a locking structure provided in an embodiment of the present invention.

[0040] Description of the accompanying drawings: 1. berthing restraint equipment; 11. berthing fender assembly; 111. fender tire; 112. first pressure sensor; 12. locking mechanism; 121. basic base; 122. hydraulic assembly; 1221. main telescopic support rod; 1222. secondary telescopic support rod; 1223. locking structure; 12231. locking motor; 12232. first coupling; 12233. transmission screw; 12234. transmission gear; 1224. buffer fine-tuning structure; 12241. hydraulic support rod; 12242. rubber pad; 12243. second pressure sensor; 123. locking assembly; 1231. clamp arm; 1232. main clamp; 1233. secondary clamp; 2. dynamic positioning compensation equipment; 21. fixed thruster; 22. Azimuth thruster; 3. Boarding equipment; 31. Moving mechanism; 311. Moving drive motor; 312. Moving wheel; 313. Transmission rack; 314. Parallel track; 32. Lifting mechanism; 321. Basic platform; 322. Lifting arm; 3221. Lifting beam; 3222. Hydraulic rod; 33. Manned car; 34. Elastic buffer ladder; 341. Ladder frame; 342. Buffer support rod; 343. Buffer spring; 35. Elastic ladder retracting and releasing mechanism; 351. Limiting slide groove; 352. Limiting slider; 353. Main gear; 354. Sub gear; 355. Transmission chain; 356. Winch body; 3561. Winch shaft; 357. Wire rope; 358. Dual output shaft motor; 359. Second coupling; 4. Ship body; 5. Fan platform. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Figures 1 to 9 As shown in the figure, this embodiment provides a manned boarding device for an offshore wind turbine operation auxiliary ship, including a berthing restraint device 1, a dynamic positioning compensation device 2, a boarding device 3 and a ship body 4.

[0046] The berthing restraint device 1 includes a berthing fender assembly 11 and a locking mechanism 12. The dynamic positioning compensation device 2 includes a fixed propeller 21 installed at the bottom of the ship body 4 and an azimuth propeller 22 installed at the rear of the ship body 4. The boarding device 3 includes a moving mechanism 31, a lifting mechanism 32, a manned car 33, and an elastic buffer ladder 34.

[0047] In the berthing restraint device 1, the berthing fender assembly 11 includes a plurality of fender tires 111, which are evenly arranged on the bow outer plate along the deck edge line of the bow of the ship body 4 and are suspended and fixed by iron chains; a first pressure sensor 112 is arranged in the fender tire 111 and is connected to the locking control system through a signal line.

[0048] The base 121 of the locking mechanism 12 is fixed to the bow deck plate of the ship body 4 by bolts. Two sets of locking components 123 and hydraulic components 122 matched therewith are respectively arranged at one-third and two-thirds of the height of the base 121. Among them, one side of the clamp arm 1231 in the locking component 123 is fixed to the base 121 by bolts, and the other side of the cantilever is extended and fixed to the root of the main clamp 1232 by rotating pins to keep the rear end of the main clamp 1232 and the fender tire 111 on the same vertical plane. The jaw position at the far end of the main clamp 1232 is also fixed to the root of the auxiliary clamp 1233 by rotating pins. The hydraulic component 122 includes a main telescopic support rod 1221, an auxiliary telescopic support rod 1222, a locking structure 1223 and a buffer fine-tuning structure 1224. Among them, each locking component 123 cooperates with two sets of hydraulic systems. The thick end of the main telescopic support rod 1221 is hinged to the end of the clamp arm 1231, and the thin end is hinged to the hinge point preset in the middle of the main clamp 1232. Correspondingly, one end of the secondary telescopic support rod 1222 is hinged to the distal jaw position of the main clamp 1232, and the other end is hinged to the hinge point preset in the middle of the secondary clamp 1233. When the main telescopic support rod 1221 and the secondary telescopic support rod 1222 are extended and retracted, the roots of the main clamp 1232 and the secondary clamp 1233 can be driven to rotate around the rotating pin, thereby realizing the opening and closing of the locking assembly 123. There are two groups of locking structures 1223 respectively arranged at the distal end of the secondary clamp 1233 in the locking assembly 123, and each group of locking structures 1223 includes a locking motor 12231, a first coupling 12232, a transmission screw 12233 and a transmission gear 12234. Among them, the transmission gear 12234 is connected to the motor shaft of the locking motor 12231 through the first coupling 12232 and meshes with the transmission lead screw 12233, and is arranged on the far left side of the auxiliary clamp 1233. A threaded through hole is opened at the corresponding position on the far right side of the auxiliary clamp 1233. When the locking motor 12231 rotates, the lead screw extends out and screws into the screw hole to complete the locking of the locking assembly 123. Correspondingly, the buffer fine-tuning structure 1224 includes two groups of hydraulic support rods 12241, which are respectively arranged in the middle of the left and right main clamps 1232 in the locking assembly 123, and the sleeves of the hydraulic support rods 12241 are inserted into the preset through holes in the middle of the left and right main clamps 1232, and the support rods point to the inside of the clamps. In order to avoid stress concentration, a rubber pad 12242 with a certain thickness and a second pressure sensor 12243 are provided at the end of the hydraulic strut 12241 , and the extension length of the hydraulic strut 12241 is adjusted by detecting the pressure.

[0049] The boarding device 3 is located on the middle longitudinal symmetry line of the bow deck of the ship body 4 and is arranged at the rear of the berthing restraint device 1. The moving mechanism 31 is composed of four groups of moving drive motors 311, moving wheels 312 as moving parts, transmission racks 313, and two parallel tracks 314 fixed on the deck plate of the ship body 4 along the length direction of the ship. The four groups of moving drive motors 311 are fixed at the four end points of the bottom of the base platform 321 of the lifting mechanism 32, and the motor shaft of the moving drive motor 311 is connected to the output shaft through a coupling, and the output shaft is engaged with the transmission rack 313, and the kinetic energy of the moving drive motor 311 is transmitted to the moving wheel 312, so that the moving wheel 312 can move forward and backward along the parallel tracks 314. The lifting arm 322 of the lifting mechanism 32 is a scissor-shaped structure, including a plurality of groups of lifting beams 3221 and hydraulic rods 3222 that are symmetrically inclined and hinged at the head and tail. And a manned car 33 is arranged on the top platform of the lifting mechanism 32.

[0050] A certain space is separated at the bottom of the passenger car 33, and the bottom of the space has a certain slope along the car exit, which is used to carry the front and rear two sets of elastic buffer ladders 34 and the elastic ladder retracting mechanism 35. The main body appearance of the elastic buffer ladder 34 is the same as that of a conventional ladder. The position near the bottom of the ladder frame 341 is a hollow structure. The buffer support rod 342 passes through the buffer spring 343 and is inserted into the preset through hole at the bottom of the ladder frame 341 to keep the buffer spring 343 in a relaxed state.

[0051] The elastic ladder retracting and releasing mechanism 35 is located in the bottom compartment of the passenger car 33, and includes a limit slide 351, a limit slider 352, a main gear 353, a sub gear 354, a transmission chain 355, a winch body 356, a wire rope 357, a double output shaft motor 358 as a retracting and releasing drive motor, and a second coupling 359. Among them, the left and right shafts of the double output shaft motor are connected to the two sets of main gears 353 through the second coupling 359, and the transmission chain 355 is arranged between the left and right sets of sub gears 354 and the corresponding main gears 353 to mesh with each other. One end of the wire rope 357 passes through the preset rope groove in the limit slider 352 set at the top of the ladder frame 341, and the other end is fixed to the winch body 356. The winch shaft 3561 of the winch body 356 is connected to the gear shaft of the sub gear 354 through the second coupling 359. When the dual output shaft motor 358 rotates, the main gear 353 rotates and transmits kinetic energy to the sub gear 354 through the transmission chain 355. The sub gear 354 rotates to drive the winch body 356 to rotate the retractable wire rope 357 to drive the limiting slider 352 to slide along the limiting slide groove 351 to realize the retraction and extension of the elastic ladder.

[0052] The offshore wind turbine operation auxiliary ship manned boarding device provided in this embodiment includes the following steps when performing a personnel boarding operation from the ship body 4 to the offshore wind turbine:

[0053] The ship body 4 sails to the vicinity of the wind turbine. When the operation and maintenance object is a floating wind turbine, the ship body 4 slowly approaches the floating wind turbine buoy or the fixed wind turbine tower. When the fender tire 111 in the mooring fender assembly 11 contacts the wind turbine buoy of the floating wind turbine platform 5 or the wind turbine tower of the fixed wind turbine platform and aligns with the jaws of the locking assembly 123, the first pressure sensor 112 monitors the force on the fender and transmits the information to the locking control system 4-4. At this time, the operation and maintenance boarding work starts; when the operation and maintenance object is a fixed wind turbine, the ship body 4 slowly approaches the working platform at the waist of the fixed wind turbine tower. When the fender tire 111 in the mooring fender assembly 11 contacts the fixed wind turbine tower and aligns with the jaws of the locking assembly 123, the first pressure sensor 112 monitors the force on the fender and transmits the information to the locking control system. At this time, the operation and maintenance boarding work starts

[0054] First, the locking control system sends a signal to drive the upper and lower locking components 123 to work, and the main telescopic strut 1221 and the auxiliary telescopic strut 1222 extend, thereby driving the left and right main clamps 1232 and the left and right auxiliary clamps 1233 to rotate along the rotating pin axis toward the center of the clamp. When the clamp strut is extended to the maximum length, the locking component 123 completes the clamping operation of the floating wind turbine pontoon or the fixed wind turbine tower.

[0055] Next, the locking control system sends a signal to drive the hydraulic strut 12241 in the middle of the main clamp 1232 in the buffer fine-tuning structure 1224 to extend axially, and the second pressure sensor 12243 located at the end of the strut detects the contact pressure between the strut and the fan buoy in real time. When the rubber pad 12242 is deformed, the pressure of the second pressure sensor 12243 changes instantaneously. At this time, the buffer fine-tuning structure 1224 sends a stop signal and activates the locking structure 1223. The locking motor 12231 starts to rotate, and drives the transmission screw 12233 meshed with the transmission gear 12234 to extend through the first gear coupling 12232, and screws into the preset threaded through hole of the auxiliary clamp 1233 on the other side.

[0056] While the locking assembly 123 and the buffer fine-tuning structure 1224 are working, the control system simultaneously detects the stress conditions of the first pressure sensor 112 and the second pressure sensor 12243 in the berthing constraint device 1 and the buffer fine-tuning structure 1224, and feeds back to the power control system in real time. The power control system outputs a driving signal to the fixed propeller 21 and the full-rotation propeller 22 located at the bottom of the hull 4, controls the relative distance between the hull 4 and the floating wind turbine buoy or the fixed wind turbine tower, and prevents the wind turbine from escaping from the berthing constraint device 1 or colliding due to being too close.

[0057] When the berthing constraint operation is completed, after the forces on the first pressure sensor 112 and the second pressure sensor 12243 monitored by the control system are stable, the mobile control system sends a signal, the mobile mechanism 31 starts to work, and the mobile drive motor 311 transfers the kinetic energy to the mobile wheel 312 through the transmission rack 313 and moves forward along the parallel track 314 to the designated position and then stops. After the personnel enter the manned car 33 through the elastic buffer ladder 34 at the rear of the manned car 33 and issue a start command, the lifting mechanism 32 is activated. The multiple groups of lifting beams 3221, which are arranged crosswise and hinged head and tail, rotate around the hinge node while the hydraulic rod 3222 is extended. When the height of the lifting arm 322 is raised to the top of the floating wind turbine pontoon or a certain height of the waist working platform of the fixed wind turbine tower.

[0058] Subsequently, the retracting and releasing control system sends out an electrical signal to drive the dual output shaft motor 358 located at the bottom space of the passenger car 33 to rotate, and the main gears 353 on both sides rotate under the drive of the second coupling 359 located at the two end shaft sides of the dual output shaft motor 358, and the driving transmission chain 355 transmits kinetic energy to the sub-gear 354 and drives the coaxial winch body 356 to rotate and tighten the wire rope 357. Since one end of the wire rope 357 is sleeved in the rope groove of the limit slider 352 and the other end is fixed on the winch body 356, when the winch body 356 rotates, the wire rope 357 will be released, driving the limit slider 352 to slide along the limit slide groove 351, so that the elastic buffer ladder 34 slides down along the exit with a certain slope. When the limit slider 352 is located at the end of the limit slide groove 351, the elastic buffer ladder 34 stops sliding down. At this time, the buffer strut 342 of the elastic buffer ladder 34 contacts the top of the wind turbine buoy or the waist working platform of the fixed wind turbine tower, and the personnel leave the manned car 33 and start boarding. The buffer spring 343 includes an inner spring and an outer spring, one end of the inner spring is connected to the inner cavity of the ladder frame 341, and the other end is connected to the end of the buffer strut 342 extending to the inside of the ladder frame 341, and the outer spring is sleeved and installed on the buffer strut 342, one end of the outer spring is connected to the buffer strut 342, and the other end is connected to the ladder frame 341. The elastic buffer ladder 34 is subjected to the gravity of the personnel, and the outer spring and the inner spring shrink at the same time to absorb the shaking caused by the movement of the personnel and the shaking between the car and the wind turbine.

[0059] When the personnel enter the passenger car 33 and begin to evacuate, the retracting and releasing control system drives the dual output shaft motor 358 to reverse, driving the winch bodies 356 corresponding to the two ends of the ladder frame 341 to tighten the wire rope 357, so that the elastic buffer ladder 34 rises along the limiting slide groove 351 to enter the designated position of the compartment of the passenger car 33. Then the lifting control system controls the hydraulic rod 3222 to contract, driving the lifting beam 3221 to rotate in the opposite direction around the hinge node, and the height of the passenger car 33 is reduced accordingly. After the passenger car 33 descends to the deck position and the personnel evacuate, the mobile control system sends a signal to control the mobile mechanism 31 to move backward along the parallel track 314 to complete the device return operation.

[0060] After the moving mechanism 31 returns to its original position, the locking control system issues an unlocking command, and the hydraulic strut 12241 in the buffer fine-tuning structure 1224 shrinks to the specified position. At the same time, the locking motor 12231 reverses, driving the transmission screw 12233 to screw out from the preset threaded through hole of the auxiliary clamp 1233. Subsequently, the auxiliary telescopic strut 1222 and the main telescopic strut 1221 shrink in sequence to drive the auxiliary clamp 1233 and the main clamp 1232 to open, completing the unlocking of the locking mechanism and the floating wind turbine buoy or the fixed wind turbine tower, and the power control system drives the fixed propeller 21 and the full-rotation propeller 22 to make the ship body 4 away from the wind turbine buoy or the fixed wind turbine tower, and finally complete the evacuation work.

[0061] The manned boarding device of the offshore wind turbine operation auxiliary ship provided in this embodiment uses a berthing restraint device 1 to lock the bow of the auxiliary ship with one of the buoys of the floating wind turbine or the tower of the fixed wind turbine. After adding the restraint, the relative movement between the wind turbine and the auxiliary ship is reduced, which reduces the difficulty of boarding and ensures safety. A dynamic positioning compensation device 2 is set at the bottom of the auxiliary ship. When the auxiliary ship and the floating wind turbine form a restraint, the longitudinal and transverse movement of the wind turbine during operation and maintenance can be compensated to a large extent, avoiding large shaking of the floating wind turbine tower. The locking mechanism 12 is provided with a buffer fine-tuning device, which can be fine-tuned by detecting the pressure on the end of the fine-tuning device to prevent the formation of a gap between the locking structure 1223 and the floating wind turbine buoy or the fixed wind turbine tower, and a buffer rubber with a certain thickness is set at the contact position to concentrate stress and avoid damage to the buoy. A retractable elastic buffer ladder 34 is provided in the boarding device 3. When boarding, the elastic foot support of the buffer ladder contacts the buoy on the top of the floating wind turbine or the platform provided on the fixed wind turbine tower. The relative shaking caused by the movement of the floating wind turbine and the auxiliary ship can be offset by the spring.

[0062] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A manned boarding device for an offshore wind turbine operation support vessel, characterized in that: include: A ship body (4) having a berthing restraint device (1) installed thereon, wherein the berthing restraint device (1) is suitable for being connected to a wind turbine platform (5); A dynamic positioning compensation device (2), comprising a fixed propeller (21) installed at the bottom of the ship body (4) and an azimuth propeller (22) installed at the stern of the ship body (4); A boarding device (3) is installed on the ship body (4), and the boarding device (3) is arranged close to the edge of the ship body (4).

2. The manned boarding device for an offshore wind turbine operation support vessel according to claim 1 is characterized in that: The mooring restraint device (1) comprises a mooring fender assembly (11) and a locking mechanism (12); the mooring fender assembly (11) is installed on the side of the ship body; the locking mechanism (12) is installed between the boarding device (3) and the edge of the ship body (4) close to the boarding device (3); a locking mechanism is provided on the locking mechanism (12) extending toward the outside of the ship body (4); the locking mechanism is suitable for locking with the wind turbine platform.

3. The manned boarding device for an offshore wind turbine operation support vessel according to claim 2 is characterized in that: The locking mechanism (12) comprises: A basic base (121) is fixedly mounted on the hull (4); one end of the locking mechanism is fixedly mounted on the basic base (121), and the other end extends away from the basic base (121); A locking assembly (123), comprising a clamp arm (1231), a pair of main clamps (1232) and a pair of auxiliary clamps (1233), wherein one end of the clamp arm (1231) is fixedly connected to the base base (121), and the other end extends in a direction away from the base base (121), the main clamp (1232) is rotatably mounted on the clamp arm (1231), and the auxiliary clamp (1233) is rotatably mounted on the main clamp (1232); The hydraulic assembly (122) comprises a main telescopic support rod (1221) and a secondary telescopic support rod (1222); one end of the main telescopic support rod (1221) is hinged to the clamp arm (1231), and the other end is hinged to the main clamp (1232); one end of the secondary telescopic support rod (1222) is hinged to the main clamp (1232), and the other end is hinged to the secondary clamp (1233); the main telescopic support rod (1221) and the secondary telescopic support rod (1222) telescope to drive the main clamp (1232) and the secondary clamp (1233) to open or close.

4. The manned boarding device for an offshore wind turbine operation support vessel according to claim 3 is characterized in that: The hydraulic assembly (122) further includes a locking structure (1223), which includes: A locking motor (12231) is installed at one end of one of the auxiliary clamps (1233) away from the main clamp (1232), and a transmission gear (12234) is installed at the output end of the locking motor (12231); A transmission screw (12233) is rotatably mounted on the auxiliary clamp (1233) on which the locking motor (12231) is mounted, and the transmission screw is meshed with the transmission gear; A threaded through hole is provided on the other auxiliary clamp (1233), and one end of the transmission screw (12233) away from the locking motor (12231) is suitable for threaded locking cooperation with the threaded through hole.

5. The manned boarding device for an offshore wind turbine operation support vessel according to any one of claims 1 to 4, characterized in that: The boarding device (3) comprises: A moving mechanism (31), comprising a parallel track (314) fixedly mounted on the ship body (4), a moving member mounted in cooperation with the parallel track (314), and a moving drive motor (311) driving the moving member to move in translation on the parallel track (314); A lifting mechanism (32) is installed on the moving member, and the lifting mechanism (32) is suitable for translational movement on the ship body (4) driven by the moving member; The passenger car (33) is fixedly mounted on the top of the lifting mechanism (32), and the passenger car (33) is suitable for lifting and lowering movement driven by the lifting mechanism (32).

6. The manned boarding device for an offshore wind turbine operation support vessel according to claim 5 is characterized in that: An elastic buffer ladder (34) is installed on one side of the passenger car (33), and the elastic buffer ladder (34) comprises a ladder frame (341) and a buffer support rod (342). One end of the ladder frame (341) is cooperatively connected to the passenger car (33), and the other end is a hollow structure. The buffer support rod (342) is slidably installed on one end of the ladder frame (341) away from the passenger car (33), and a buffer spring (343) is installed between the buffer support rod (342) and the ladder frame (341).

7. The manned boarding device for an offshore wind turbine operation support vessel according to claim 6 is characterized in that: The buffer spring (343) comprises an inner spring and an outer spring, one end of the inner spring is connected to the inner cavity of the ladder frame (341), and the other end is connected to one end of the buffer support rod (342) extending to the inside of the ladder frame (341), and the outer spring is sleeved and installed on the buffer support rod (342), one end of the outer spring is connected to the buffer support rod (342), and the other end is connected to the ladder frame (341).

8. The manned boarding device for an offshore wind turbine operation support vessel according to claim 6, characterized in that: It also includes an elastic ladder retracting and releasing mechanism (35), which includes a slidably matched limiting slide groove (351) and a limiting slider (352), wherein the limiting slider (352) is fixedly connected to the elastic buffer ladder (34), and the limiting slide groove (351) is fixedly connected to the passenger car (33).

9. The manned boarding device for an offshore wind turbine operation support vessel according to claim 8, characterized in that: The elastic ladder retracting and extending mechanism (35) also includes a retracting and extending driving motor, the output end of which drives a winch body (356) to be installed, a steel wire rope (357) is wound around the winch body (356), and one end of the steel wire rope (357) is fixedly connected to the limiting slider (352).

10. The manned boarding device for an offshore wind turbine operation support vessel according to any one of claims 2 to 4, characterized in that: The mooring fender assembly (11) comprises a fender tire (111) installed on the side of the ship body (4) and a first pressure sensor (112) installed in the fender tire (111).

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