A wind turbine nacelle cover hoisting tool

Abstract

The present invention relates to the technical field of wind turbine hoisting equipment, and in particular to a wind turbine nacelle cover hoisting tool, comprising a cover connection system, a cover lifting system, and a sliding flip hoisting system, wherein the number of the cover lifting systems is more than two, and the two or more cover lifting systems are arranged at intervals, the top of the cover lifting system is provided with the cover connection system in a sliding manner, the cover connection system is used to be fixedly connected to the nacelle cover, the top of the cover lifting system is provided with the sliding flip hoisting system, and the sliding flip hoisting system is connected to the cover connection system. The beneficial effect of the present invention is that the present invention does not require additional cranes or lifting vessels to complete the hoisting work, which greatly reduces the cost of disassembling and hoisting the nacelle cover.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine hoisting equipment, in particular to a wind turbine nacelle cover hoisting tool. Background Art

[0002] At present, the replacement of large components of onshore or offshore wind turbines (generators, gearboxes, transmission chains, etc.) is completed by lifting with cranes or lifting vessels. It is necessary to rent a main crane or lifting vessel with sufficient tonnage and arm length to complete the replacement of large components without damaging the nacelle. First, the top cover of the nacelle needs to be dropped. With the development of technology, wind turbine towers are getting taller and taller (currently reaching 140 meters and will be higher in the future). The required cranes or lifting vessels have become larger and larger in tonnage, longer in arm length, and more expensive. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a wind turbine nacelle cover hoisting tool to solve the above-mentioned problems existing in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a wind turbine nacelle cover top cover lifting tool, comprising a top cover connection system, a top cover lifting system and a sliding and flipping lifting system, the number of the top cover lifting systems is more than two, and the more than two top cover lifting systems are arranged at intervals, the top of the top cover lifting system is slidingly provided with the top cover connection system, the top cover connection system is used to be fixedly connected to the nacelle cover top cover, the top of the top cover lifting system is provided with the sliding and flipping lifting system, the sliding and flipping lifting system is connected to the top cover connection system, and is used to drive the top cover connection system to slide along the length direction of the top of the top cover lifting system, and when the center of gravity of the top cover connection system slides to the end of the length direction of the top of the top cover lifting system, it drives the top cover connection system to flip, and when the top cover connection system is flipped, the top cover connection system is transported vertically downward.

[0005] The beneficial effects of the present invention are as follows: the present invention fixes the cabin cover top cover through the top cover connection system, and then lifts the cabin cover top cover through the top cover lifting system, so that the cabin cover top cover is separated from the cabin cover and the lowest point of the cabin cover top cover is higher than the highest point of the cabin component, and then slides the cabin cover top cover to one side of the cabin cover through the sliding and flipping lifting system, and then flips the cabin cover top cover fixed on the top cover connection system to the outside of the cabin cover through the sliding and flipping lifting system, and then lifts the cabin cover top cover fixed on the top cover connection system to the ground through the lifting of the sliding and flipping lifting system, without the need for additional crane or lifting ship to complete the lifting work, which greatly reduces the cost of disassembling and lifting the cabin cover top cover.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the top cover connection system includes an upper slide plate assembly in the form of an elongated strip, and connection assemblies are fixedly provided at both ends of the upper slide plate assembly. The connection assembly is provided with connection holes for detachably connecting to the cabin cover by bolts.

[0008] The beneficial effect of adopting the above-mentioned further scheme is that the upper slide assembly is detachably fixedly connected to the cabin cover top cover through the connecting assemblies at both ends of the upper slide assembly, and the upper slide assemblies on the two sets of top cover connection systems are arranged at intervals, thereby achieving fixation of the cabin cover top cover in the length direction of the cabin cover top cover, which is convenient for installation and disassembly, and the fixation is stable and firm.

[0009] Furthermore, the upper slide assembly includes an upper sliding middle plate and two strip-shaped upper slides that are detachably fixedly connected to the two ends of the upper sliding middle plate, and the connection assembly is fixedly provided on one end of the two upper slides away from the upper sliding middle plate.

[0010] The beneficial effect of adopting the above further solution is that the upper slide plate assembly adopts the assembled upper slide middle plate and the upper slide plate, which facilitates the transportation of the upper slide plate assembly into the cabin cover for assembly.

[0011] Furthermore, the connecting assembly includes a U-shaped middle piece and a connecting piece fixed between the two ends of the middle piece by bolts and nuts, and the middle part of the middle piece is fixedly connected to the end of the upper slide plate by bolts and nuts.

[0012] The beneficial effect of adopting the above-mentioned further scheme is that by locking the connecting piece through the U-shaped middle piece, the direction of the connecting piece can be adjusted according to the shape of the inner wall of the cabin cover and the distance between the top cover and the upper slide can be fine-tuned, thereby ensuring the stability of the connection between the connecting piece and the inner wall of the cabin cover and the high consistency between different top cover lifting systems.

[0013] Furthermore, the top cover lifting system includes a first hydraulic cylinder assembly and a second hydraulic cylinder assembly whose bottom ends are fixed on a frame platform inside the cabin cover, a first collecting plate is fixed on the top of the first hydraulic cylinder assembly, a second collecting plate is fixed on the top of the second hydraulic cylinder assembly, a long lower slide plate assembly is provided between the first collecting plate and the second collecting plate, the first end of the lower slide plate assembly is fixedly connected to the first collecting plate, the second end of the lower slide plate assembly is fixedly connected to the second collecting plate, and the top cover connection system is slidably provided on the lower slide plate assembly.

[0014] The beneficial effect of adopting the above further solution is that the top cover is raised by the first hydraulic cylinder assembly and the second hydraulic cylinder assembly, the structure is simple, and the operation is convenient.

[0015] Furthermore, the bottom ends of the first hydraulic cylinder assembly and the second hydraulic cylinder assembly are both fixed on the frame platform through electromagnetic bases.

[0016] The beneficial effect of adopting the above further solution is that it is easy to install and disassemble.

[0017] Furthermore, the sliding flip hoisting system includes a flip joint fixedly arranged at one end of the first collecting plate away from the lower slide assembly, a sliding drive mechanism for driving the upper slide assembly to move along the length direction of the lower slide assembly is provided below the lower slide assembly, and a flip hoisting drive mechanism for driving the upper slide assembly to flip with the flip joint as the rotation center is provided below the lower slide assembly.

[0018] The beneficial effect of adopting the above-mentioned further scheme is: the sliding drive mechanism drives the upper slide assembly to move along the length direction of the lower slide assembly. When the middle part of the upper slide assembly moves to the flip joint position, the upper slide assembly is flipped by the flip hoisting drive mechanism, and then the flipped upper slide assembly is hoisted down to the ground to complete the hoisting of the cabin cover.

[0019] Furthermore, the sliding drive mechanism includes a first electric hoist and a pulling rope, the first electric hoist is fixed to the bottom of the first collecting plate, a first steering pulley is fixed below the first end of the lower slide assembly, a second steering pulley is fixed below the second end of the lower slide assembly, a third steering pulley and a fourth steering pulley are provided in the flip joint, the first electric hoist is fixedly connected to one end of the pulling rope, and the other end of the pulling rope is detachably fixedly connected to the middle part of the top cover connection system after passing through the first steering pulley, the second steering pulley, the third steering pulley and the fourth steering pulley in sequence.

[0020] The beneficial effect of adopting the above further solution is that the top cover connection system is driven to move in the direction of the flip joint by pulling the pulling rope through the first electric hoist.

[0021] Furthermore, the flip hoisting drive mechanism includes a second electric hoist, a chain, a follower boom and a fixed boom, the second electric hoist is fixed to the bottom of the second collecting plate, the follower boom is fixedly connected to one end of the upper slide assembly, the fixed boom is detachably connected to the end of the follower boom away from the upper slide assembly, a fifth steering pulley is fixedly provided below the second end of the lower slide assembly, a sixth steering pulley is fixedly provided on the end of the second collecting plate away from the lower slide assembly, a seventh steering pulley is fixed on the fixed boom, a hanging ear is fixed on the follower boom, the second electric hoist is connected to one end of the chain, and the other end of the chain is connected to the hanging ear through a hook after passing through the fifth steering pulley, the sixth steering pulley and the seventh steering pulley in sequence.

[0022] The beneficial effect of adopting the above-mentioned further scheme is: when the top cover connection system moves in the direction of the flip joint to the middle of the top cover connection system and exceeds the flip joint, the second electric hoist releases the chain, and the top cover connection system is flipped under the action of its own gravity and the gravity of the cabin cover. Due to the traction of the chain, the flipping process can ensure that it is flipped at the required speed to ensure safety.

[0023] Furthermore, a plurality of positioning slots are provided on one end of the follower boom away from the upper slide assembly, and a positioning rod corresponding one-to-one to the plurality of positioning slots is provided on the fixed boom, and the positioning rods are inserted one-to-one into the positioning slots.

[0024] The beneficial effect of adopting the above further solution is that the follower boom and the fixed boom are detachably connected through the positioning slot and the positioning plug rod, and the connection and disassembly are convenient.

[0025] Furthermore, a plurality of first limiting grooves are provided on the top of the flip joint, and a connecting pin is detachably inserted into the first limiting groove. A second limiting groove matching the first limiting groove is provided at one end of the fixed boom facing the follower boom. After the upper slide assembly is rotated to vertical, the second limiting groove is provided vertically above the first limiting groove.

[0026] The beneficial effect of adopting the above-mentioned further scheme is that after the second limiting groove is flipped to the vertical upper side of the first limiting groove, during the process of the fixed boom descending, the connecting pin is gradually inserted into the second limiting groove, thereby preventing the fixed boom from continuing to descend, and the seventh steering pulley on the fixed boom fixed on the flip joint provides steering support for continuing to release the top cover connection system and the chain of the cabin cover downward.

[0027] Furthermore, the lower slide plate assembly includes a descending middle plate and two strip-shaped lower slide plates that are detachably fixed to the two ends of the descending middle plate, the descending middle plate and the two lower slide plates are horizontally arranged on the same straight line, the end of one lower slide plate away from the descending middle plate is the first end of the lower slide plate assembly, and the end of the other lower slide plate away from the descending middle plate is the second end of the lower slide plate assembly.

[0028] The beneficial effect of adopting the above further solution is that it is convenient to transport the lower slide assembly into the nacelle cover.

[0029] Furthermore, both sides of the lower slide assembly along the length direction are provided with guard plates protruding from the upper surface thereof, and the upper slide assembly is slidably arranged between the two guard plates.

[0030] The beneficial effect of adopting the above further solution is that the provision of the guard plate can guide the sliding of the upper slide assembly on the lower slide assembly, thereby preventing the upper slide assembly from detaching from the lower slide assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the state after the nacelle cover is lifted up according to the present invention;

[0032] Figure 2 This is a schematic diagram of the state in which the nacelle cover is driven by the present invention to slide along with the upper slide assembly;

[0033] Figure 3 This is a schematic diagram of the state where the present invention drives the nacelle cover to flip over to a certain angle;

[0034] Figure 4 This is a schematic diagram of the state after the present invention drives the nacelle cover to flip to a vertical direction;

[0035] Figure 5 This is a schematic diagram of the state where the nacelle cover is lowered by the present invention;

[0036] Figure 6 This is a structural schematic diagram of the lower slide assembly of the present invention installed on the top cover lifting system;

[0037] Figure 7 This is a schematic diagram of the state in which the upper slide assembly pulls the rope and chain when sliding on the lower slide assembly in the present invention;

[0038] Figure 8 This is a diagram showing the connection between the fixed boom and the flip joint when the fixed boom is separated from the follower boom;

[0039] Figure 9 It is a structural schematic diagram of the follower boom in the present invention;

[0040] Figure 10Schematic diagram of the structure of the connection assembly in the present invention;

[0041] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0042] 1. Nacelle cover; 2. Upper slide assembly; 2-1. Upper sliding middle plate; 2-2. Upper slide; 3. Connecting assembly; 3-1. Middle piece; 3-2. Connecting piece; 4. Connecting hole; 5. First hydraulic cylinder assembly; 6. Second hydraulic cylinder assembly; 7. First collecting plate; 8. Second collecting plate; 9. Lower slide assembly; 9-1. Lower sliding middle plate; 9-2. Lower slide; 9-3. Guard plate; 10. Flip joint; 11. First electric hoist; 12. Pull rope 13. First steering pulley; 14. Second steering pulley; 15. Third steering pulley; 16. Fourth steering pulley; 17. Second electric hoist; 18. Chain; 19. Follow-up boom; 20. Fixed boom; 21. Fifth steering pulley; 22. Sixth steering pulley; 23. Seventh steering pulley; 24. Hanging ear; 25. Positioning slot; 26. Positioning rod; 27. First limiting slot; 28. Connecting pin; 29. ​​Second limiting slot; 30. Electromagnetic base. DETAILED DESCRIPTION

[0043] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0044] like Figure 1-Figure 5 As shown, an embodiment of the present invention includes a top cover connection system, a top cover lifting system and a sliding and flipping hoisting system. The number of the top cover lifting systems is more than two, and the more than two top cover lifting systems are arranged at intervals. When in use, the two top cover lifting systems are arranged in the cabin cover along the length direction of the cabin cover, and in order to ensure the stability of the cabin cover top cover 1 during the hoisting process, it is preferred that the two top cover lifting systems are symmetrically arranged on both sides of the length direction of the cabin cover top cover 1, and the top of the top cover lifting system is slidingly provided with the top cover connection system, and the top cover connection system is used to be fixedly connected to the cabin cover top cover 1, and the top of the top cover lifting system is provided with the sliding and flipping hoisting system, and the sliding and flipping hoisting system is connected to the top cover connection system, and is used to drive the top cover connection system to slide along the length direction of the top of the top cover lifting system, and when the top cover connection system slides to the length direction end of the top of the top cover lifting system, it drives the top cover connection system to flip, and when the top cover connection system is flipped, the top cover connection system is transported vertically downward.

[0045] like Figures 1 to 5 As shown, after the nacelle cover 1 is fixed, the nacelle cover 1 can be driven to rise (as shown in FIG. Figure 1As shown), drive the cabin cover 1 to slide in the horizontal direction (as shown Figure 2 As shown), drive the cabin cover 1 to flip (as shown Figure 3 As shown) until the vertical state (as shown) Figure 4 As shown), and then drive the cabin cover 1 down (as shown Figure 5 As shown), the disassembly and hoisting of the nacelle cover 1 are completed without the need for an additional crane arm to realize the hoisting of the nacelle cover 1, thereby greatly reducing costs.

[0046] like Figures 1 to 5 As shown, in an embodiment of the present invention, the top cover connection system includes an upper slide plate assembly 2 in the shape of a long strip. In order to ensure the installation of the upper slide plate assembly 2, the length of the upper slide plate assembly 2 is not greater than the width of the cabin cover top cover 1. Both ends of the upper slide plate assembly 2 are fixed with a connection assembly 3, and the connection assembly 3 is provided with a connection hole 4 for detachably connecting to the cabin cover top cover 1 through bolts. The connection assembly 3 at both ends of the upper slide plate assembly 2 is detachably fixedly connected to the cabin cover top cover 1. The upper slide plate assemblies 2 on the two groups of top cover connection systems are arranged at intervals, so that the cabin cover top cover 1 is fixed in the length direction of the cabin cover top cover 1, and the installation and disassembly are convenient, and the fixation is stable and firm.

[0047] Furthermore, the upper slide assembly 2 includes an upper sliding middle plate 2-1 and two upper slides 2-2 in a strip shape that are detachably fixedly connected to the two ends of the upper sliding middle plate 2-1. Specifically, the two ends of the upper sliding middle plate 2-1 are detachably fixedly connected to the ends of the two upper slides 2-2 by bolts, and the length directions of the upper sliding middle plate 2-1 and the upper slides 2-2 are the same, so that the assembled upper slide assembly 2 has a long strip structure, and the ends of the two upper slides 2-2 away from the upper sliding middle plate 2-1 are fixed with the connecting assembly 3. The upper slide assembly 2 adopts the assembled upper sliding middle plate 2-1 and upper slide 2-2, which is convenient for transporting the upper slide assembly 2 into the cabin cover for assembly.

[0048] like Figure 10As shown, in an embodiment of the present invention, the connecting assembly 3 includes a U-shaped middle piece 3-1 and a connecting piece 3-2 fixed between the two ends of the middle piece 3-1 by bolts and nuts. Before the bolts and nuts connecting the connecting piece 3-2 are tightened, the connecting piece 3-2 can be rotated with the bolt as the axis, so as to adjust the angle that is more suitable for the reinforcement rib on the inner wall of the cabin cover 1 for fixed connection. When the connection angle is determined, the connecting piece 3-2 is locked and fixed by bolts and nuts, and the middle piece 3-1 is fixed. The middle part is fixedly connected to the side wall of the end of the upper slide plate 2-2 by bolts and nuts. Specifically, the middle part of the middle part 3-1 is fixed to the side wall of the end of the upper slide plate 2-2 by bolts and nuts. The connecting part 3-2 is locked and connected by the U-shaped middle part 3-1. The direction of the connecting part 3-2 can be adjusted according to the shape of the inner wall of the cabin cover 1 and the distance between 3-2 and 2-2 can be fine-tuned, ensuring the stability of the connection between the connecting part 3-2 and the inner wall of the cabin cover 1 and the high consistency between different top cover lifting systems.

[0049] like Figure 6 As shown, in an embodiment of the present invention, the top cover raising system includes a first hydraulic cylinder assembly 5 and a second hydraulic cylinder assembly 6 whose bottom ends are fixed on a frame platform inside the cabin cover. The first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 have the same structure. The first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 each include a plurality of hydraulic rods arranged in parallel to ensure sufficient supporting force. The bottom ends of the plurality of hydraulic rods arranged in parallel are fixedly connected to the electromagnetic base 30. The bottom ends of the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 are both fixed to the frame platform through the electromagnetic base 30, which is convenient for installation and disassembly. The second hydraulic cylinder assembly 6 is arranged at intervals. Specifically, when in use, the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 are respectively arranged on both sides of the longitudinal direction of the cabin cover. A first collecting plate 7 is fixedly provided on the top of the first hydraulic cylinder assembly 5, and a second collecting plate 8 is fixedly provided on the top of the second hydraulic cylinder assembly 6. A long lower slide assembly 9 is provided between the first collecting plate 7 and the second collecting plate 8. The first end of the lower slide assembly 9 is fixedly connected to the first collecting plate 7, and the second end of the lower slide assembly 9 is fixedly connected to the second collecting plate 8. The top cover connection system is slidably provided on the lower slide assembly 9. The cabin cover top cover 1 is raised by the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6. The structure is simple and the operation is convenient.

[0050] Further preferably, the lower slide assembly 9 includes a lower middle plate 9-1 and two lower slides 9-2 in the form of strips that are detachably fixed to both ends of the lower middle plate 9-1. The lower middle plate 9-1 and the two lower slides 9-2 are arranged horizontally on the same straight line. The end of one lower slide 9-2 away from the lower middle plate 9-1 is the first end of the lower slide assembly 9, and the end of the other lower slide 9-2 away from the lower middle plate 9-1 is the second end of the lower slide assembly 9, which facilitates the transportation of the lower slide assembly 9 into the cabin cover. The middle portions of the lower middle plate 9-1 and the lower slides 9-2 are both provided with strip-shaped through holes extending in the length direction and interconnected, so as to facilitate the sliding of the connection point between the pull rope 12 and the upper slide assembly 2 on the lower slide assembly 9, thereby avoiding damage to the pull rope 12 caused by friction and sliding between the pull rope 12 and the lower slide assembly 9.

[0051] In a preferred embodiment of the present invention, the lower slide assembly 9 is provided with guard plates 9-3 protruding from its upper surface on both sides along the length direction, and the upper slide assembly 2 is slidably arranged between the two guard plates 9-3. The setting of the guard plates 9-3 can guide the sliding of the upper slide assembly 2 on the lower slide assembly 9, thereby preventing the upper slide assembly 2 from detaching from the lower slide assembly 9.

[0052] In a preferred embodiment of the present invention, the sliding flip hoisting system includes a flip joint 10 fixedly arranged at one end of the first collecting plate 7 away from the lower slide assembly 9, a sliding drive mechanism for driving the upper slide assembly 2 to move along the length direction of the lower slide assembly 9 is provided below the lower slide assembly 9, and a flip hoisting drive mechanism for driving the upper slide assembly 2 to flip around the flip joint 10 as the rotation center is provided below the lower slide assembly 9. The sliding drive mechanism drives the upper slide assembly 2 to move along the length direction of the lower slide assembly 9. When the middle portion of the upper slide assembly 2 moves to the position of the flip joint 10, the upper slide assembly 2 is flipped by the flip hoisting drive mechanism, and then the flipped upper slide assembly 2 is hoisted downward to the ground, completing the hoisting of the cabin cover 1.

[0053] like Figure 7As shown, more specifically, the sliding drive mechanism includes a first electric hoist 11 and a pulling rope 12, the first electric hoist 11 is fixed to the bottom of the first collecting plate 7, a first steering pulley 13 is fixedly provided below the first collecting plate 7, a second steering pulley 14 is fixedly provided below the second collecting plate 8, a third steering pulley 15 and a fourth steering pulley 16 are provided in the flip joint 10, the connecting chain of the first electric hoist 11 is connected to one end of the pulling rope 12 through a hook, the connecting chain of the first electric hoist 11 passes around the first steering pulley 13 to connect one end of the pulling rope 12, the pulling rope 12 passes around the second steering pulley 14, the third steering pulley 15 and the fourth steering pulley 16 in turn and is detachably fixedly connected to the middle part of the top cover connection system, The connecting chain of the first electric hoist 11 passes around the first steering pulley 13, so that the direction of the vertical connecting chain is changed to the horizontal direction and is hung with the pulling rope 12, extending in the direction of the second steering pulley 14, and then extending in the direction of the third steering pulley 15, passing around the lower part of the third steering pulley 15 and fixedly connected with the middle part of the upper slide assembly 2 located above the third steering pulley 15, the fourth steering pulley 16 is arranged obliquely above the third steering pulley 15 in the direction away from the second collecting plate 8, after the upper slide assembly 2 continues to move in the direction away from the second collecting plate 8 to the middle and exceeds the fourth steering change wheel, the pulling rope 12 is wrapped around the fourth steering pulley 16, and the pulling rope 12 is pulled by the first electric hoist 11, thereby driving the top cover connection system to move in the direction of the flip joint 10.

[0054] like Figure 7As shown, it should be noted that the flip hoisting drive mechanism includes a second electric hoist 17, a chain 18, a follower boom 19 and a fixed boom 20. The second electric hoist 17 is fixed to the bottom of the second collecting plate 8, the follower boom 19 is fixedly connected to one end of the upper slide assembly 2, and the fixed boom 20 is detachably connected to the end of the follower boom 19 away from the upper slide assembly 2. A fifth steering pulley 21 is fixedly provided below the second collecting plate 8, a sixth steering pulley 22 is fixedly provided at one end of the second collecting plate 8 away from the lower slide assembly 9, a seventh steering pulley 23 is fixedly provided on the fixed boom 20, and the A hanging ear 24 is fixedly provided on the follower boom 19, and the second electric hoist 17 is connected to one end of the chain 18. The other end of the chain 18 passes around the fifth steering pulley 21, the sixth steering pulley 22, and the seventh steering pulley 23 in sequence and is connected to the hanging ear 24 through a hook. When the top cover connection system moves toward the direction of the flip joint 10 to the middle of the top cover connection system and exceeds the flip joint 10, the second electric hoist 17 releases the chain 18, and the top cover connection system is flipped under the action of its own gravity and the gravity of the cabin cover 1. Due to the traction of the chain 18, the flipping process can ensure that it is flipped at the required speed to ensure safety.

[0055] In an embodiment of the present invention, when the top cover connection system is flipped to a vertical state, the pull rope 12 is kept connected to the upper slide assembly 2, and then the first electric hoist 11 releases the pull rope 12 and the second electric hoist 17 synchronously releases the chain 18 to realize the lowering of the top cover connection system and the cabin cover 1.

[0056] like Figure 8 、 Figure 9 As shown, as shown, in an embodiment of the present invention, the follower boom 19 is provided with a plurality of positioning slots 25 on one end away from the upper slide assembly 2, and the fixed boom 20 is provided with positioning rods 26 corresponding one-to-one to the plurality of positioning slots 25, and the positioning rods 26 are inserted one-to-one into the positioning slots 25, and the follower boom 19 and the fixed boom 20 are detachably connected through the positioning slots 25 and the positioning rods 26, and the connection and disassembly are convenient.

[0057] like Figure 8As shown, the top of the flip joint 10 is provided with a plurality of first limiting grooves 27, and a connecting pin 28 is detachably inserted into the first limiting groove 27. The end of the fixed boom 20 facing the follower boom 19 is provided with a second limiting groove 29 matching the first limiting groove 27. After the upper slide assembly 2 is rotated to vertical, the second limiting groove 29 is arranged vertically above the first limiting groove 27. After the second limiting groove 29 is flipped to the vertical position above the first limiting groove 27, during the descending process of the fixed boom 20, the connecting pin 28 is gradually inserted into the second limiting groove 29, thereby avoiding The free-fixed boom 20 continues to descend, and the seventh steering pulley 23 on the fixed boom 20 fixed on the flip joint 10 provides steering support for continuing to release the top cover connection system and the chain 18 of the cabin cover 1 downward. At the same time, as the follow-up boom 19 descends with the upper slide assembly 2, the positioning rod 26 gradually disengages from the positioning slot 25, thereby realizing the separation of the fixed boom 20 and the follow-up boom 19. At this time, the connection between the connecting chain of the first electric hoist 11 and the pulling rope 12 can be disconnected, and the cabin cover 1 is lifted to the ground by the second electric hoist 17, thereby completing the disassembly.

[0058] The installation process is the opposite of the disassembly process. The cabin cover 1 is vertically lifted by the second electric hoist 17. After the follower boom 19 is inserted into the fixed boom 20, the first electric hoist 11 further lifts the cabin cover 1 by pulling the rope 12. Then the connecting pin 28 is removed. The first electric hoist 11 and the second electric hoist 17 cooperate with each other to flip the cabin cover 1 to the horizontal. The second electric hoist 17 drags the cabin cover 1 to slide horizontally to a stable position. The pulling rope 12 is removed. The connecting chain of the first electric hoist 11 passes through the first steering pulley 13 and the second steering pulley 14 in turn and is directly connected to the upper sliding middle plate 2-1, pulling the cabin cover 1 to slide to its original position. Then the upper slide assembly 2, the lower slide assembly 9, the first electric hoist 11, and the second electric hoist 17 are removed. The cabin cover 1 descends, thereby completing the installation of the cabin cover 1.

[0059] The present invention fixes the cabin cover top cover 1 through the top cover connection system, and then lifts the cabin cover top cover 1 through the top cover lifting system, so that the cabin cover top cover 1 is separated from the cabin cover and the lowest point of the cabin cover top cover 1 is higher than the highest point of the cabin component, and then slides the cabin cover top cover 1 to one side of the cabin cover through the sliding and flipping lifting system, and then flips it through the sliding and flipping lifting system to flip the cabin cover top cover 1 fixed on the top cover connection system to the outside of the cabin cover, and then hoisted by the sliding and flipping lifting system, the cabin cover top cover 1 fixed on the top cover connection system is hoisted to the ground, without the need for additional crane or lifting ship to complete the hoisting work, which greatly reduces the cost of disassembling and hoisting the cabin cover top cover 1.

[0060] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In the description of the present invention, “a plurality of” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind turbine nacelle cover hoisting tool, characterized in that: The invention comprises a top cover connection system, a top cover raising system and a sliding flip hoisting system, wherein the number of the top cover raising systems is more than two, and the more than two top cover raising systems are arranged at intervals, the top of the top cover raising system is provided with the top cover connection system in a sliding manner, the top cover connection system is used to be fixedly connected to the cabin cover top (1), the top of the top cover raising system is provided with the sliding flip hoisting system, the sliding flip hoisting system is connected to the top cover connection system, and is used to drive the top cover connection system to slide along the length direction of the top of the top cover raising system, and drive the top cover connection system to flip after the top cover connection system slides to the end of the length direction of the top of the top cover raising system, and transport the top cover connection system vertically downward after the top cover connection system flips; The top cover connection system comprises an upper slide plate assembly (2) in the form of an elongated strip, with connection assemblies (3) fixedly provided at both ends of the upper slide plate assembly (2), and connection holes (4) provided on the connection assembly (3) for detachably connecting the upper slide plate assembly (2) to the cabin cover (1) via bolts; The upper slide assembly (2) comprises an upper slide middle plate (2-1) and two strip-shaped upper slides (2-2) respectively detachably and fixedly connected to the two ends of the upper slide middle plate (2-1); the connection assembly (3) is fixedly provided at one end of the two upper slides (2-2) away from the upper slide middle plate (2-1); The top cover raising system comprises a first hydraulic cylinder assembly (5) and a second hydraulic cylinder assembly (6), the bottom end of which is fixed on a frame platform in the cabin cover; a first collecting plate (7) is fixed on the top of the first hydraulic cylinder assembly (5); a second collecting plate (8) is fixed on the top of the second hydraulic cylinder assembly (6); a lower slide assembly (9) in the form of an elongated strip is provided between the first collecting plate (7) and the second collecting plate (8); a first end of the lower slide assembly (9) is fixedly connected to the first collecting plate (7); a second end of the lower slide assembly (9) is fixedly connected to the second collecting plate (8); and the top cover connection system is slidably provided on the lower slide assembly (9); The sliding flip hoisting system comprises a flip joint (10) fixedly arranged at one end of the first collecting plate (7) away from the lower slide assembly (9); a sliding drive mechanism for driving the upper slide assembly (2) to move along the length direction of the lower slide assembly (9) is provided below the lower slide assembly (9); and a flip hoisting drive mechanism for driving the upper slide assembly (2) to flip with the flip joint (10) as the rotation center is provided below the lower slide assembly (9); The overturning hoisting drive mechanism includes a second electric hoist (17), a chain (18), a follower boom (19) and a fixed boom (20), wherein the second electric hoist (17) is fixed to the bottom of the second collecting plate (8), the follower boom (19) is fixedly connected to one end of the upper slide assembly (2), the fixed boom (20) is detachably connected to one end of the follower boom (19) away from the upper slide assembly (2), a fifth steering pulley (21) is fixedly provided below the second end of the lower slide assembly (9), and the first A sixth steering pulley (22) is fixedly provided at one end of the second collecting plate (8) away from the lower slide assembly (9), a seventh steering pulley (23) is fixedly provided on the fixed boom (20), a hanging ear (24) is fixedly provided on the follower boom (19), the second electric hoist (17) is connected to one end of the chain (18), and the other end of the chain (18) passes through the fifth steering pulley (21), the sixth steering pulley (22), and the seventh steering pulley (23) in sequence and is connected to the hanging ear (24) through a hook.

2. The wind turbine nacelle cover hoisting tool according to claim 1, characterized in that: The connecting assembly (3) comprises a U-shaped middle piece (3-1) and a connecting piece (3-2) fixed between the two ends of the middle piece (3-1) by means of bolts and nuts, wherein the middle portion of the middle piece (3-1) is fixedly connected to the ends of the upper slide plate (2-2) by means of bolts and nuts.

3. The wind turbine nacelle cover hoisting tool according to claim 1, characterized in that: The sliding drive mechanism comprises a first electric hoist (11) and a pulling rope (12), wherein the first electric hoist (11) is fixed to the bottom of the first collecting plate (7), a first steering pulley (13) is fixedly provided below the first end of the lower slide assembly (9), a second steering pulley (14) is fixedly provided below the second end of the lower slide assembly (9), a third steering pulley (15) and a fourth steering pulley (16) are provided in the flip joint (10), the first electric hoist (11) is fixedly connected to one end of the pulling rope (12), and the other end of the pulling rope (12) is detachably fixedly connected to the middle part of the top cover connection system after passing through the first steering pulley (13), the second steering pulley (14), the third steering pulley (15) and the fourth steering pulley (16) in sequence.

4. The wind turbine nacelle cover hoisting tool according to claim 1, characterized in that: A plurality of positioning slots (25) are provided on one end of the follower suspension rod (19) away from the upper slide assembly (2), and a positioning insertion rod (26) corresponding to the plurality of positioning slots (25) is provided on the fixed suspension rod (20), and the positioning insertion rods (26) are inserted into the positioning slots (25) in a one-to-one correspondence.

5. The wind turbine nacelle cover hoisting tool according to claim 1, characterized in that: A plurality of first limiting grooves (27) are provided on the top of the flip joint (10), and a connecting pin (28) is detachably inserted into the first limiting groove (27). A second limiting groove (29) matching the first limiting groove (27) is provided at one end of the fixed suspension rod (20) facing the follower suspension rod (19). After the upper slide assembly (2) is rotated to a vertical position, the second limiting groove (29) is provided vertically above the first limiting groove (27).

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