CN116142940A - Hoisting tool for top cover of cabin cover of wind driven generator - Google Patents

Abstract

The invention relates to the technical field of wind driven generator lifting equipment, in particular to a wind driven generator cabin cover top cover lifting tool which comprises a top cover connecting system, a top cover lifting system and a sliding overturning lifting system, wherein the number of the top cover lifting systems is more than two, the two top cover lifting systems are arranged at intervals, the top of the top cover lifting system is provided with the top cover connecting system in a sliding mode, the top cover connecting system is used for being fixedly connected with a cabin cover top cover, the sliding overturning lifting system is arranged at the top of the top cover lifting system, and the sliding overturning lifting system is connected with the top cover connecting system. The beneficial effects of the invention are as follows: according to the invention, the hoisting work is completed without an additional crane or a hoisting ship, so that the cost of disassembling and hoisting the top cover of the cabin cover is greatly reduced.

Description

Hoisting tooling for wind turbine nacelle cover top cover

technical field

The invention relates to the technical field of wind power generator hoisting equipment, in particular to a wind power generator nacelle cover hoisting tool.

Background technique

At present, the replacement of large parts (generators, gearboxes, drive chains, etc.) of onshore or offshore wind turbines is done by cranes or hoisting ships. It is necessary to rent a main crane or hoisting ship with sufficient tonnage and arm length. , to complete the replacement of large parts without destroying the nacelle cover, the top cover of the nacelle cover needs to be dropped first. The tonnage of cranes or hoisting ships required is getting bigger and bigger, the arm length is getting longer and longer, and the cost is getting more and more expensive.

Contents of the invention

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 in the prior art.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a wind turbine nacelle cover top cover hoisting tooling, including a top cover connection system, a top cover raising system and a sliding flip hoisting system, and the number of the top cover raising systems is More than two, more than two top cover raising systems are arranged at intervals, and the top of the top cover raising system is slidingly provided with the top cover connection system, and the top cover connection system is used for fixing with the top cover of the nacelle cover connection, the top of the roof lifting system is provided with the sliding and flipping hoisting system, and the sliding and flipping hoisting system is connected with the roof connecting system to drive the roof connecting system to lift along the roof. The top of the high system slides in the length direction, and when the center of gravity of the roof connection system slides to the end of the length direction of the top of the roof lifting system, the roof connection system is turned over, and when the roof The top cover connection system is conveyed vertically downward after the cover connection system is turned over.

The beneficial effects of the present invention are: the present invention fixes the top cover of the nacelle cover through the top cover connection system, and then lifts the top cover of the nacelle cover through the top cover raising system, so that the top cover of the nacelle cover is separated from the nacelle cover and the top cover of the nacelle cover The lowest point is higher than the highest point of the nacelle components, then slide the top cover of the nacelle to one side of the nacelle through the sliding and flipping lifting system, and then turn over through the sliding and flipping lifting system, and fix the top cover of the nacelle on the top cover connection system Turn it over to the outside of the nacelle cover, and then hoist the nacelle cover fixed on the top cover connection system to the ground through the hoisting of the sliding and flipping hoisting system. No need to complete the hoisting work by crane or hoisting ship, which greatly reduces the roof of the nacelle cover The cost of dismantling and lifting the cover.

On the basis of the above technical solutions, the present invention can also be improved as follows.

Further, the top cover connection system includes a strip-shaped upper slide assembly, both ends of the upper slide assembly are fixed with a connection assembly, and the connection assembly is provided with a bolt for connecting with the nacelle cover top cover. Attachment hole for detachable attachment.

The beneficial effect of adopting the above-mentioned further scheme is: through the connection assembly at both ends of the upper slide assembly and the top cover of the nacelle cover, the upper slide assembly on the two sets of top cover connection systems are arranged at intervals, thereby extending the length of the top cover of the nacelle. The top cover of the nacelle cover is fixed in the direction, the installation and disassembly are convenient, and the fixing is stable and firm.

Further, the upper sliding board assembly includes an upper sliding middle board and two upper sliding boards in strips that are detachably and fixedly connected to both ends of the upper sliding middle board, and the two upper sliding boards are far away from the upper sliding middle board. One end of the board is fixedly provided with the connection assembly.

The beneficial effect of adopting the above further solution is: the upper sliding plate assembly adopts the assembled upper sliding middle plate and the upper sliding plate, so that the upper sliding plate assembly is conveniently transported into the nacelle cover for assembly.

Further, the connecting assembly includes a U-shaped middle piece and a connecting piece fixed between two ends of the middle piece through bolts and nuts, and the middle part of the middle piece is connected to the end of the upper slide plate through bolts and nuts. The nut secures the connection.

The beneficial effect of adopting the above-mentioned further scheme is that the connecting piece can be locked and connected by the U-shaped intermediate piece, the orientation of the connecting piece can be adjusted according to the shape of the inner wall of the top cover of the nacelle and the distance between the top cover and the upper slide plate can be fine-tuned to ensure that the connecting piece is connected to the cabin. The stability of the connection of the inner walls of the canopy and the consistency of height between different canopy raising systems.

Further, the roof raising system includes a first hydraulic cylinder assembly and a second hydraulic cylinder assembly whose bottom ends are fixed on the frame platform inside the nacelle cover, and the top of the first hydraulic cylinder assembly is fixedly provided with a first collector plate, the top end of the second hydraulic cylinder assembly is fixed with a second collecting plate, and between the first collecting plate and the second collecting plate is a strip-shaped lower plate assembly, the lower plate assembly The first end of the lower plate assembly is fixedly connected to the first collecting plate, the second end of the lower plate assembly is fixedly connected to the second collecting plate, and the top cover connection system is slidably arranged on the lower plate assembly.

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

Further, the bottom ends of the first hydraulic cylinder assembly and the second hydraulic cylinder assembly are fixed on the frame platform through electromagnetic bases.

The beneficial effect of adopting the above further solution is: easy installation and disassembly.

Furthermore, the sliding and turning lifting system includes a turning joint fixed on the end of the first collecting plate away from the lower sliding board assembly, and the bottom of the lower sliding board assembly is provided with a A slide drive mechanism for moving the slide assembly in the length direction, and an overturn hoisting drive mechanism for driving the upper slide assembly to overturn with the overturn joint as the center of rotation provided below the lower slide assembly.

The beneficial effect of adopting the above further scheme is that the sliding drive mechanism drives the upper slide assembly to move along the length direction of the lower slide assembly, and when the middle part of the upper slide assembly moves to the position of the flip joint, the upper slide assembly is lifted by turning over the lifting drive mechanism. Turn over, and then hoist the flipped upper slide assembly down to the ground to complete the hoisting of the nacelle cover.

Further, the sliding drive mechanism includes a first electric hoist and a pull rope, the first electric hoist is fixed on the bottom of the first collecting plate, and a first steering wheel is fixed below the first end of the lower board assembly. Pulleys, the second turning pulley is fixed under the second end of the lower slide assembly, the third turning pulley and the fourth turning pulley are arranged in the turning joint, the first electric hoist and one end of the pulling rope Fixedly connected, the other end of the pull rope goes around the first deflection pulley, the second deflection pulley, the third deflection pulley and the fourth deflection pulley in turn, and is connected to the middle part of the top cover system Removable fixed connection.

The beneficial effect of adopting the above further solution is that the pulling rope is pulled by the first electric hoist, thereby driving the top cover connection system to move in the direction of the turning joint.

Further, the turning and hoisting driving mechanism includes a second electric hoist, a chain, a follow-up boom and a fixed boom, the second electric hoist is fixed on the bottom of the second collection plate, and the follow-up boom It is fixedly connected with one end of the upper slide assembly, the fixed suspender is detachably connected with the end of the follow-up suspension away from the upper slide assembly, and the second end of the lower slide assembly is fixed with a second Five diverting pulleys, the end of the second collecting plate away from the lower plate assembly is fixed with a sixth diverting pulley, the fixed boom is fixed with a seventh diverting pulley, and the moving boom is fixed with a sixth diverting pulley. Hanging lugs are fixed, the second electric hoist is connected to one end of the chain, and the other end of the chain bypasses the fifth diverting pulley, the sixth diverting pulley, and the seventh diverting pulley in turn. Connect with the hanging ear through the hook.

The beneficial effect of adopting the above further solution is: when the top cover connection system moves to the direction of the overturn joint to the middle of the top cover connection system beyond the overturn joint, the second electric hoist puts the chain, and the top cover connection system is under its own gravity and the cabin The overturning is realized under the action of the gravity of the cover top cover. Due to the traction of the chain, the overturning process can ensure the overturning according to the required speed to ensure safety.

Further, a plurality of positioning slots are provided on the end of the follow-up suspension rod away from the upper slide assembly, and positioning inserting rods corresponding to the plurality of positioning slots are provided on the fixed suspension rod, The positioning inserting rods are inserted in the positioning slots one by one.

The beneficial effect of adopting the above further solution is that the follow-up suspension rod and the fixed suspension rod are detachably connected through the positioning slot and the positioning insertion rod, and the connection and disassembly are convenient.

Further, the top of the turning head is provided with several first restricting grooves, and connecting pins are detachably inserted in the first restricting grooves, and the end of the fixed boom facing the moving boom is provided with a The second restricting groove matched with the first restricting groove is arranged vertically above the first restricting groove after the upper slide plate assembly is rotated to be vertical.

The beneficial effect of adopting the above further solution is: after the second restricting groove is overturned vertically above the first restricting groove, the connecting pin is gradually inserted into the second restricting groove during the lowering process of the fixed boom, thereby avoiding the possibility of fixing the boom. Continuing to descend, the seventh deflection pulley that is fixed on the fixed suspender on the turning head provides steering support for continuing to release the chain of the top cover connection system and the nacelle cover top cover downwards.

Further, the lower sliding board assembly includes a lower sliding middle board and two lower sliding boards which are detachably and fixedly connected to both ends of the lower sliding middle board respectively. It is arranged horizontally on the straight line, the end of one of the sliding plates away from the sliding intermediate plate is the first end of the sliding plate assembly, and the end of the other sliding plate away from the sliding intermediate plate is the sliding plate assembly the second end of .

The beneficial effect of adopting the above further solution is: it is convenient to transport the slide plate assembly into the nacelle cover.

Further, both sides of the lower slide assembly along the length direction are provided with guard plates protruding from its upper surface, and the upper slide plate assembly is slidably arranged between the two guard plates.

The beneficial effect of adopting the above further solution is that the setting of the guard plate can guide the sliding of the upper slide assembly on the lower slide assembly, and prevent the upper slide assembly from being separated from the lower slide assembly.

Description of drawings

Fig. 1 is the state schematic diagram after the nacelle top cover is jacked up for the present invention;

Fig. 2 is a schematic diagram of the present invention driving the top cover of the nacelle cover to slide with the upper slide plate assembly;

Fig. 3 is a schematic diagram of the state after the present invention drives the top cover of the nacelle cover to turn over at a certain angle;

Fig. 4 is a schematic view of the present invention driving the top cover of the nacelle cover to turn over to the vertical direction;

Fig. 5 is a schematic diagram of the state after the present invention drives the top cover of the nacelle cover to descend;

Fig. 6 is a structural schematic diagram of the lower plate assembly installed on the top cover raising system in the present invention;

Fig. 7 is a schematic diagram of the state of pulling the rope and the chain when the upper slide assembly slides on the lower slide assembly in the present invention;

Fig. 8 is a diagram of the connection state between the fixed boom and the turning joint when it is separated from the moving boom in the present invention;

Fig. 9 is a structural schematic diagram of the follow-up boom in the present invention;

Fig. 10 is a schematic structural view of the connection assembly in the present invention;

In the accompanying drawings, the list of parts represented by each label is as follows:

1. The top cover of the nacelle cover; 2. The upper slide plate assembly; 2-1. The upper slide middle plate; 2-2. The upper slide plate; 3. The connection assembly; 3-1. The middle piece; Connecting hole; 5. The first hydraulic cylinder assembly; 6. The second hydraulic cylinder assembly; 7. The first collecting plate; 8. The second collecting plate; , lower plate; 9-3, guard plate; 10, flip joint; 11, the first electric hoist; 12, pull rope; 13, the first diverting pulley; 14, the second diverting pulley; 15, the third diverting pulley; 16 , the fourth steering pulley; 17, the second electric hoist; 18, the chain; 19, the follow-up boom; 20, the fixed boom; 21, the fifth steering pulley; 22, the sixth steering pulley; 23, the seventh steering Pulley; 24, hanging lug; 25, positioning slot; 26, positioning insertion rod; 27, first limiting groove; 28, connecting pin; 29, second limiting groove; 30, electromagnetic base.

Detailed ways

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

As shown in Figures 1-5, the embodiment of the present invention includes a top cover connection system, a top cover lifting system and a sliding and flipping hoisting system. The top cover raising systems are arranged at intervals. When in use, two of the top cover raising systems are arranged in the nacelle cover along the length direction of the nacelle cover, and in order to ensure that the nacelle cover 1 is hoisted stability, preferably, the two top cover raising systems are symmetrically arranged on both sides of the length direction of the nacelle cover 1, and the top sliding of the top cover raising system is provided with the top cover connection system, the top cover connection system is used for fixed connection with the nacelle cover top cover 1, the top of the top cover lifting system is provided with the sliding and turning hoisting system, and the sliding and turning hoisting system is connected with the top cover connection system connection, for driving the roof connection system to slide along the length direction of the top of the roof raising system, and when the roof connection system slides to the end of the length direction of the top of the roof raising system Afterwards, the top cover connection system is driven to turn over, and the top cover connection system is vertically conveyed downward after the top cover connection system is turned over.

As shown in Figures 1 to 5, after the present invention fixes the top cover 1 of the nacelle, it can be realized to drive the top cover 1 of the nacelle in turn (as shown in Figure 1), and to drive the top cover 1 of the nacelle in the horizontal direction. Slide (as shown in Figure 2), drive the nacelle cover 1 to turn over (as shown in Figure 3) until it reaches a vertical state (as shown in Figure 4), and then drive the nacelle cover 1 to descend (as shown in Figure 5) , so as to complete the disassembly and hoisting of the nacelle top cover 1, without the need to additionally use a boom to realize the hoisting of the nacelle top cover 1, greatly reducing the cost.

As shown in Figures 1 to 5, in the embodiment of the present invention, the top cover connection system includes an elongated upper slide assembly 2, in order to ensure the installation of the upper slide assembly 2, the upper slide assembly 2 The length is not greater than the width of the nacelle cover top cover 1, and the two ends of the upper slide assembly 2 are fixedly provided with a connection assembly 3, and the connection assembly 3 is provided with a bolt for connecting with the nacelle cover top cover 1. The connection holes 4 for disassembly and connection are detachably fixedly connected to the nacelle cover 1 through the connection assemblies 3 at both ends of the upper slide assembly 2, and the upper slide assemblies 2 on the two sets of top cover connection systems are arranged at intervals, so that the upper slide assembly 2 on the nacelle cover The fixing of the nacelle cover top cover 1 is realized in the length direction of 1, the installation and disassembly are convenient, and the fixing is stable and firm.

Further, the upper sliding board assembly 2 includes an upper sliding middle board 2-1 and two strip-shaped upper sliding boards 2-2 respectively detachably and fixedly connected to both ends of the upper sliding middle board 2-1. , the two ends of the upper sliding middle plate 2-1 are detachably fixedly connected to the ends of the two upper sliding plates 2-2 through bolts, and the upper sliding middle plate 2-1 and the upper sliding plate 2- 2 have the same length and direction, 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 slide middle plate 2-1 are fixedly provided with the connecting assembly 3. The upper slide assembly 2 adopts the assembled upper slide middle plate 2-1 and the upper slide 2-2, so that the upper slide assembly 2 is conveniently transported to the nacelle cover for assembly.

As shown in FIG. 10 , in the embodiment of the present invention, the connection assembly 3 includes a U-shaped middle piece 3-1 and a bolt and nut fastened between two ends of the middle piece 3-1. Connecting piece 3-2, before the bolts and nuts connecting the connecting piece 3-2 are locked, the connecting piece 3-2 can be rotated on the axis of the bolt, so that the adjustment is more suitable for the inner wall of the nacelle cover top cover 1 The angle at which the reinforcing rib is fixed and connected, when the connection angle is determined, the connecting piece 3-2 is locked and fixed by bolts and nuts, the middle part of the middle piece 3-1 is connected with the end of the upper slide plate 2-2 The side walls are fixedly connected by bolts and nuts. Specifically, the middle part of the middle piece 3-1 is fixed on the end side wall of the upper slide plate 2-2 by bolts and nuts, and locked by the U-shaped middle piece 3-1. Tightly connect the connecting piece 3-2, the orientation of the connecting piece 3-2 can be adjusted according to the shape of the inner wall of the nacelle cover 1 and the distance between 3-2 and 2-2 can be fine-tuned to ensure that the connecting piece 3-2 and the nacelle cover The stability of the connection of the inner walls of the roof 1 and the consistency of height between different roof raising systems.

As shown in Figure 6, in the embodiment of the present invention, the roof raising system includes a first hydraulic cylinder assembly 5 and a second hydraulic cylinder assembly 6 whose bottom ends are fixed on the frame platform in the nacelle cover, and The first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 have the same structure, and both the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 include a plurality of hydraulic rods arranged side by side to ensure sufficient The supporting force, the bottom ends of a plurality of juxtaposed hydraulic rods are fixedly connected to the electromagnetic base 30, and the bottom ends of the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 are fixed on the electromagnetic base 30 On the rack platform, installation and disassembly are convenient, and the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6 are arranged at intervals. Specifically, when in use, the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly The two hydraulic cylinder assemblies 6 are respectively arranged on both sides in the length direction in the nacelle cover, the top of the first hydraulic cylinder assembly 5 is fixedly provided with a first collecting plate 7, and the top of the second hydraulic cylinder assembly 6 The top end is fixedly provided with a second collecting plate 8, and between the first collecting plate 7 and the second collecting plate 8 is provided a strip-shaped lower plate assembly 9, the first end of which is connected to the lower plate assembly 9. The first collecting plate 7 is fixedly connected, the second end of the lower plate assembly 9 is fixedly connected to the second collecting plate 8 , and the top cover connection system is slidably arranged on the lower plate assembly 9 . The lifting of the top cover 1 of the nacelle cover is realized by the first hydraulic cylinder assembly 5 and the second hydraulic cylinder assembly 6, and the structure is simple and the operation is convenient.

Further preferably, the lower sliding board assembly 9 includes a lower sliding middle board 9-1 and two strip-shaped lower sliding boards 9-2 respectively detachably and fixedly connected to both ends of the lower sliding middle board 9-1. The sliding middle plate 9-1 and the two sliding plates 9-2 are arranged horizontally on the same straight line, and the end of one of the sliding plates 9-2 away from the sliding middle plate 9-1 is the sliding plate assembly 9 The first end of the other slide plate 9-2 is the second end of the slide plate assembly 9, which is far away from the slide intermediate plate 9-1, so that the slide plate assembly 9 is conveniently transported into the nacelle cover. The middle part of the lower middle board 9-1 and the lower board 9-2 is provided with a strip-shaped through hole extending along the length direction and communicating with each other, so that the connection point between the pull rope 12 and the upper skateboard assembly 2 is located in the lower board assembly. 9, to avoid frictional sliding between the pull rope 12 and the lower plate assembly 9 to cause damage to the pull rope 12.

In a preferred embodiment of the present invention, both sides of the lower slide assembly 9 along the length direction are provided with guard plates 9-3 protruding from its upper surface, and the upper slide assembly 2 is slidably arranged on two Between the guard plates 9-3, the setting of the guard plate 9-3 can guide the sliding of the upper slide plate assembly 2 on the lower slide plate assembly 9, so as to prevent the upper slide plate assembly 2 from breaking away from the lower slide plate assembly 9.

In a preferred embodiment of the present invention, the sliding and turning lifting system includes a turning joint 10 fixed on the end of the first collecting plate 7 away from the lower plate assembly 9 , and the lower plate assembly 9 is provided with a There is a sliding drive mechanism for driving the upper slide assembly 2 to move along the length direction of the lower slide assembly 9, and the bottom of the lower slide assembly 9 is provided for driving the upper slide assembly 2 with the flip joint 10 as a The turning and hoisting drive mechanism for turning the center of rotation. The sliding driving mechanism drives the upper sliding board assembly 2 to move along the length direction of the lower sliding board assembly 9. When the middle part of the upper sliding board assembly 2 moves to the position of the flip joint 10, the upper sliding board assembly 2 is turned over by the flipping and hoisting driving mechanism, and then the The overturned upper slide assembly 2 is hoisted downward to the ground to complete the hoisting of the nacelle cover top cover 1 .

As shown in Figure 7, further specifically, the sliding drive mechanism includes a first electric hoist 11 and a pull rope 12, the first electric hoist 11 is fixed on the bottom of the first collecting plate 7, and the first collecting The bottom of the plate 7 is fixed with a first deflection pulley 13, the bottom of the second collecting plate 8 is fixed with a second deflection pulley 14, and the flip joint 10 is provided with a third deflection pulley 15 and a fourth deflection pulley 16. , the connecting chain of the first electric hoist 11 is connected to one end of the pulling rope 12 through a hook, and the connecting chain of the first electric hoist 11 bypasses the first diverting pulley 13 to connect to one end of the pulling rope 12, so The pulling rope 12 is detachably and fixedly connected to the middle part of the roof connection system after bypassing the second diverting pulley 14, the third diverting pulley 15 and the fourth diverting pulley 16 in turn. Specifically, the The connecting chain of the first electric hoist 11 walks around the first diverting pulley 13, so that the direction of the vertical connecting chain is changed into a horizontal direction to be articulated with the pull rope 12, and extends to the direction of the second diverting pulley 14, and then to the second diverting pulley 14. The direction of the third deflection pulley 15 extends, and is fixedly connected with the middle part of the upper skateboard assembly 2 that is positioned at the top of the third deflection pulley 15 after bypassing the bottom of the third deflection pulley 15. The fourth deflection pulley 16 is located at the first The three diverting pulleys 15 are obliquely above the direction away from the second collecting plate 8. After the upper slide assembly 2 continues to move away from the second collecting plate 8 to the middle and exceeds the fourth diverting wheel, the pull rope 12 is wound on the fourth diverting pulley 16, and the pulling rope 12 is pulled by the first electric hoist 11, so as to drive the top cover connection system to move toward the direction of the turning joint 10.

As shown in Fig. 7, it needs to be explained that the turning and hoisting driving mechanism includes a second electric hoist 17, a chain 18, a follow-up suspension rod 19 and a fixed suspension rod 20, and the second electric hoist 17 is fixed on the first At the bottom of the two collection plates 8, the follow-up suspension rod 19 is fixedly connected to one end of the upper slide assembly 2, and the fixed suspension rod 20 and the follow-up suspension rod 19 are far away from the upper slide assembly 2. One end is detachably connected, the fifth deflection pulley 21 is fixed under the second collecting plate 8, and the sixth deflection pulley 22 is fixed on the end of the second collecting plate 8 away from the lower plate assembly 9, The seventh steering pulley 23 is fixedly arranged on the fixed suspension rod 20, the hanging lug 24 is fixedly provided on the follow-up suspension rod 19, the second electric hoist 17 is connected with one end of the chain 18, and the The other end of the chain 18 bypasses the fifth deflection pulley 21, the sixth deflection pulley 22, and the seventh deflection pulley 23 in sequence, and then connects with the hanging lug 24 through a hook. The direction of 10 moves to the middle part of the top cover connection system beyond the flip joint 10, the second electric hoist 17 puts the chain 18, and the top cover connection system is turned over under the action of its own gravity and the gravity of the nacelle cover top cover 1, because The traction of chain 18, the process of overturning can guarantee to overturn according to the required speed to ensure safety.

In the embodiment of the present invention, when the top cover connection system is turned over to the vertical state, the connection of the pull rope 12 to the upper slide assembly 2 is maintained, and then the first electric hoist 11 releases the pull rope 12 and the second electric hoist 17 synchronously releases the chain 18. Realize the lowering of the top cover connection system and the top cover 1 of the nacelle cover.

As shown in Fig. 8 and Fig. 9, in the embodiment of the present invention, a plurality of positioning slots 25 are provided on the end of the follow-up suspension rod 19 away from the upper slide assembly 2, and the fixed The suspender 20 is provided with a plurality of positioning insertion rods 26 corresponding to the positioning slots 25 one by one, and the positioning insertion rods 26 are inserted in the positioning slots 25 in a one-to-one correspondence. It is detachably connected with the fixed suspension rod 20 through the positioning slot 25 and the positioning insertion rod 26, which is convenient for connection and disassembly.

As shown in Figure 8, several first limiting grooves 27 are provided on the top of the turning head, and connecting pins 28 are detachably inserted in the first limiting grooves 27, and the fixed suspension rod 20 faces the follow-up One end of the movable suspension rod 19 is provided with a second restricting groove 29 matching the first restricting groove 27, and after the upper slide assembly 2 is rotated to be vertical, the second restricting groove 29 is arranged on the first restricting groove 27. Vertically above the first restricting groove 27, after the second restricting groove 29 is turned over to be vertically above the first restricting groove 27, in the process of the fixed boom 20 descending, the connecting pin 28 is gradually inserted into the second restricting groove 29, Thereby avoiding that the fixed boom 20 continues to descend, the seventh diverting pulley 23 fixed on the fixed boom 20 on the turning head provides steering support for continuing to release the chain 18 of the top cover connection system and the nacelle cover top cover 1 downwards, Simultaneously, in the process that the follow-up suspension rod 19 descends with the upper slide plate assembly 2, the positioning inserting rod 26 breaks away from the positioning slot 25 gradually, thereby realizing the separation of the fixed suspension rod 20 and the follow-up suspension rod 19, which Can disconnect the connection chain of the first electric hoist 11 and the connection of pull rope 12 at the same time, the nacelle cover top cover 1 is hoisted to the ground by the second electric hoist 17, thereby completes dismounting.

The installation process is opposite to the dismantling process. The nacelle cover 1 is vertically hoisted by the second electric hoist 17. After the follow-up suspension rod 19 is inserted into the fixed suspension rod 20, the first electric hoist 11 pulls the rope 12 to realize the installation of the nacelle cover. The top cover 1 is further raised, and then the connecting pin 28 is removed. The first electric hoist 11 and the second electric hoist 17 cooperate with each other to realize the flipping of the top cover 1 of the nacelle cover to the level, and the second electric hoist 17 drags the top cover 1 of the nacelle cover. Slide horizontally to a stable place, take off the pull rope 12, the connecting chain of the first electric hoist 11 bypasses the first diverting pulley 13 and the second diverting pulley 14 in turn, and then directly connects with the upper sliding middle plate 2-1, and pulls the top of the engine room cover The cover 1 slides to the 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 disassembled, and the nacelle top cover 1 descends, thereby completing the installation of the nacelle top cover 1.

The invention fixes the nacelle top cover 1 through the top cover connection system, and then lifts the nacelle top cover 1 through the top cover raising system, so that the nacelle top cover 1 is separated from the nacelle cover and the lowest point of the nacelle top cover 1 is high At the highest point of the nacelle components, slide the nacelle top cover 1 to one side of the nacelle cover through the sliding and flipping lifting system, and then turn over through the sliding and flipping lifting system to turn over the nacelle top cover 1 fixed on the top cover connection system to the outside of the nacelle cover, and then hoist the nacelle cover 1 fixed on the top cover connection system to the ground through the hoisting of the sliding and flipping hoisting system. No need to complete the hoisting work by cranes or hoisting ships, which greatly reduces the roof of the nacelle cover. Cover 1 disassembly and hoisting cost.

In describing the present invention, it is to be understood that the terms "centre", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "inner", "outer", "circumferential", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this Inventions and simplified descriptions do not indicate or imply that the system or element referred to must have a particular orientation, be constructed, and operate in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. The utility model provides a wind-driven generator cabin cover top cap hoist and mount frock, its characterized in that, includes top cap connected system, top cap system of rising and slip upset hoist and mount system, the quantity of top cap system of rising is more than two, and more than two top cap system of rising interval sets up, top slip of top cap system of rising is equipped with top cap connected system, top cap connected system is used for with cabin cover top cap (1) fixed connection, top cap system of rising's top is equipped with slip upset hoist and mount system, slip upset hoist and mount system with top cap connected system is connected, is used for driving top cap connected system is followed the length direction of top cap system of rising slides, and works as top cap connected system slides to behind the length direction's of top cap system of rising top tip drives top cap connected system upset, and works as after top cap connected system upset will top cap connected system is vertical downwards to be carried.

2. The hoisting tool for the nacelle cover top cover of the wind driven generator according to claim 1, wherein the top cover connecting system comprises an upper sliding plate assembly (2) in a strip shape, connecting assemblies (3) are fixedly arranged at two ends of the upper sliding plate assembly (2), and connecting holes (4) used for detachably connecting the nacelle cover top cover (1) through bolts are formed in the connecting assemblies (3).

3. The hoisting tool for the top cover of the nacelle cover of the wind driven generator according to claim 2, wherein the upper slide plate assembly (2) comprises an upper slide middle plate (2-1) and two strip-shaped upper slide plates (2-2) which are detachably and fixedly connected with two ends of the upper slide middle plate (2-1) respectively, and one ends, far away from the upper slide middle plate (2-1), of the two upper slide plates (2-2) are fixedly provided with the connecting assembly (3).

4. A wind turbine nacelle cover top cover hoisting tool according to claim 3, wherein the connecting assembly (3) comprises a U-shaped middle piece (3-1) and a connecting piece (3-2) which is locked and fixed between two ends of the middle piece (3-1) through bolts and nuts, and the middle part of the middle piece (3-1) is fixedly connected with the end part of the upper sliding plate (2-2) through bolts and nuts.

5. The hoisting tool for the top cover of the nacelle cover of the wind driven generator according to claim 1, wherein the top cover lifting system comprises a first hydraulic cylinder assembly (5) and a second hydraulic cylinder assembly (6) which are fixed on a frame platform in the nacelle cover at the bottom end, a first collecting plate (7) is fixedly arranged at the top of the first hydraulic cylinder assembly (5), a second collecting plate (8) is fixedly arranged at the top end of the second hydraulic cylinder assembly (6), a strip-shaped lower sliding plate assembly (9) is arranged between the first collecting plate (7) and the second collecting plate (8), a first end of the lower sliding plate assembly (9) is fixedly connected with the first collecting plate (7), a second end of the lower sliding plate assembly (9) is fixedly connected with the second collecting plate (8), and the top cover connecting system is arranged on the lower sliding plate assembly (9) in a sliding mode.

6. The wind turbine nacelle cover top cover hoisting tool according to claim 5, wherein the sliding overturning hoisting system comprises an overturning joint (10) fixedly arranged at one end of the first collecting plate (7) far away from the lower sliding plate assembly (9), a sliding driving mechanism for driving the upper sliding plate assembly (2) to move along the length direction of the lower sliding plate assembly (9) is arranged below the lower sliding plate assembly (9), and an overturning hoisting driving mechanism for driving the upper sliding plate assembly (2) to overturn by taking the overturning joint (10) as a rotation center is arranged below the lower sliding plate assembly (9).

7. The hoisting tool for the top cover of the nacelle cover of the wind driven generator according to claim 6, wherein the sliding driving mechanism comprises a first electric hoist (11) and a pulling rope (12), the first electric hoist (11) is fixed at the bottom of the first collecting plate (7), a first steering pulley (13) is fixedly arranged below the first end of the lower sliding plate assembly (9), a second steering pulley (14) is fixedly arranged below the second end of the lower sliding plate assembly (9), a third steering pulley (15) and a fourth steering pulley (16) are arranged in the overturning joint (10), the first electric hoist (11) is fixedly connected with one end of the pulling rope (12), and the other end of the pulling rope (12) sequentially bypasses the first steering pulley (13), the second steering pulley (14), the third steering pulley (15) and the fourth steering pulley (16) and then is detachably and fixedly connected with the middle part of the top cover connecting system.

8. The wind turbine nacelle cover top cover hoisting tool according to claim 6, wherein the overturning hoisting driving mechanism comprises a second electric hoist (17), a chain (18), a follow-up boom (19) and a fixed boom (20), the second electric hoist (17) is fixed at the bottom of the second collecting plate (8), the follow-up boom (19) is fixedly connected with one end of the upper sliding plate assembly (2), the fixed boom (20) is detachably connected with one end of the follow-up boom (19) far away from the upper sliding plate assembly (2), a fifth diverting pulley (21) is fixedly arranged below the second end of the lower sliding plate assembly (9), one end of the second collecting plate (8) far away from the lower sliding plate assembly (9) is fixedly provided with a sixth diverting pulley (22), a seventh diverting pulley (23) is fixedly arranged on the fixed boom (20), the follow-up boom (19) is fixedly provided with a hanging lug (24), the second electric hoist (17) is detachably connected with one end of the follow-up boom (19) far away from the upper sliding plate assembly (2), the second end of the second electric hoist (9) is fixedly provided with a fifth diverting pulley (22) far from the second end of the lower sliding plate assembly (9), and the fifth diverting pulley (23) is sequentially connected with the fifth diverting pulley (24).

9. The hoisting tool for the nacelle cover top cover of the wind driven generator according to claim 8, wherein a plurality of positioning slots (25) are formed in one end, far away from the upper sliding plate assembly (2), of the follow-up boom (19), positioning inserting rods (26) which are in one-to-one correspondence with the positioning slots (25) are arranged on the fixed boom (20), and the positioning inserting rods (26) are inserted in the positioning slots (25) in one-to-one correspondence.

10. The wind turbine nacelle cover top cover hoisting tool according to claim 8, wherein a plurality of first limiting grooves (27) are formed in the top of the turnover head, connecting pins (28) are detachably inserted in the first limiting grooves (27), a second limiting groove (29) matched with the first limiting grooves (27) is formed in one end, facing the follow-up hanging rod (19), of the fixed hanging rod (20), and after the upper sliding plate assembly (2) rotates to be vertical, the second limiting groove (29) is formed in the vertical upper portion of the first limiting groove (27).

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