A cabin assembly hoisting system

Abstract

This invention relates to a nacelle assembly hoisting system, comprising a main hoisting frame, the main hoisting frame including a main beam, with a first lifting ring respectively provided on both sides of the main beam along its long axis, and a main lifting seat provided at the upper end of the middle position of the main beam; a main lifting assembly is provided at the middle position of the main beam, the main lifting assembly including a first main lifting shaft, a first main lifting plate, a second main lifting plate, a second main lifting shaft, and a stop shaft; an auxiliary lifting assembly is also provided on one side of the main beam, including an auxiliary lifting plate, an upper auxiliary lifting shaft, and a lower auxiliary lifting shaft. The advantages of this invention are: the nacelle assembly hoisting system of this invention, through the cooperation between the hoisting support and the main and auxiliary lifting assemblies, adjusts the winding of the wire rope at different positions on the main and auxiliary lifting assemblies according to the different center of gravity positions of the nacelle assembly, ensuring the stability of the nacelle assembly during hoisting, and eliminating the need to weld lifting lugs to the outer shell of the nacelle assembly, thus facilitating hoisting.

Description

Technical Field

[0001] This invention relates to the field of wind turbines, and in particular to a nacelle assembly hoisting system. Background Technology

[0002] The nacelle assembly is one of the key components of a wind turbine system. Its main functions are to protect the generator and its control equipment, and to provide a workspace for operators. Equipment housed within the nacelle includes control cabinets, cable junction boxes, converters, coolers, and overvoltage protection devices. The nacelle also contains computer monitoring systems, enabling remote monitoring and control of the wind turbine system's operation, thus improving operational efficiency and safety.

[0003] With changing market demands and technological upgrades in wind turbine generators, the power output of wind turbine generators is gradually increasing. Simultaneously, the weight and volume of wind turbine generators are also increasing, consequently leading to a corresponding increase in the weight and volume of the nacelle assembly. This presents numerous challenges for the hoisting and transportation of the nacelle assembly. Currently, the existing method for hoisting the nacelle assembly involves pre-welding lifting lugs to different locations on the nacelle's outer shell, then using a crane for hoisting and transportation. After hoisting, the lifting lugs are then removed, which is extremely cumbersome. Furthermore, because the weight varies across different parts of the nacelle assembly, the placement of the lifting lugs needs to be calculated and planned in advance during welding; otherwise, instability will occur during subsequent hoisting, causing significant problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a nacelle assembly hoisting system that facilitates stable hoisting of nacelle assemblies.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a nacelle assembly hoisting system, the innovation of which lies in: including A hoisting main frame, the hoisting main frame including a main beam, the main beam being a hollow square tube, a first lifting ring being provided on both sides of the main beam along its long axis, and a main lifting seat being provided at the upper end of the middle position of the main beam; A main lifting assembly is provided at the middle position of the main beam. The main lifting assembly includes a first main lifting shaft connected to the middle position of the main beam. The first main lifting shaft is perpendicular to the main beam in the horizontal direction. The two sides of the first main lifting shaft extend from the two sides of the width direction of the main beam. A pair of circular first main lifting plates are provided on both sides of the first main lifting shaft. The two first main lifting plates are distributed on the first main lifting shaft in an inner-outer position. The first main lifting plates are coaxially arranged with the first main lifting shaft, and the diameter of the first main lifting plate is larger than the diameter of the first main lifting shaft. A gap is left between the two first main lifting plates of the same pair to accommodate the winding of the wire rope of the lifting device. A second main lifting plate is vertically installed below the first main lifting shaft on the main beam. A pair of second main lifting shafts are installed on the second main lifting plate, which are arranged in parallel along the long axis of the main beam. A stop shaft is installed on both sides of the second main lifting shaft, and a gap is left between the stop shaft and the second main lifting plate to accommodate the wire rope of the lifting device. A secondary suspension assembly is also provided on one side of the main beam. The secondary suspension assembly includes a pair of secondary suspension plates arranged side by side on both sides of the width direction of the main beam. An upper secondary suspension shaft and a lower secondary suspension shaft are installed between the two secondary suspension plates, and the upper and lower secondary suspension shafts are staggered in the vertical direction. The upper secondary suspension shaft is located above the main beam, and the lower secondary suspension shaft is located below the main beam.

[0006] Furthermore, the main hanger includes a fixed square tube connected to the upper end face of the main beam, a horizontally arranged cross plate connected to the fixed square tube, a pair of parallel hanging plates installed on the cross plate, a hanging hole opened in the hanging plate, the hanging plate is vertically arranged on the cross plate, and an inclined plate is also provided at the upper end of the hanging plate, and the inclined plates on the two hanging plates are distributed in an inverted V-shape.

[0007] Furthermore, a second lifting ring is also provided on the main beam next to the main lifting seat.

[0008] Furthermore, on the two first main lifting plates of the same pair, there are also first limiting shafts for limiting the wire rope of the lifting device. There are two first limiting shafts, located on both sides of the first main lifting plate, and the first limiting shafts are parallel to the center axis of gravity of the first main lifting plate. On both sides of the first main lifting plate located on the outer side, there is also an outwardly extending fixed section. A first through hole is opened on the fixed section to allow the first limiting shaft to pass through. A fixed shaft is also provided near the first main lifting plate located on the inner side of the first main lifting shaft. A second through hole is opened on both sides of the fixed shaft to allow the first limiting shaft to pass through. The first limiting shaft passes through the first through hole and the second through hole in sequence and is then fixed by a first spring pin.

[0009] Furthermore, a pair of second limiting shafts are provided between the two stop shafts connected to the same second main lifting shaft. A fixing block is provided at the end of the stop shaft. A third through hole is opened on the fixing block to allow the second limiting shaft to pass through. A fourth through hole is also opened on the second main lifting plate to allow the second limiting shaft to pass through. After the second limiting shaft passes through the third through hole and the fourth through hole, it is fixed by a second spring pin.

[0010] Furthermore, a reinforcing assembly is provided between the first main lifting shaft and the main beam. The reinforcing assembly includes a pair of reinforcing tubes arranged side by side on both sides of the width of the main beam. One side of the reinforcing tube is fixed to the main beam, and the other side of the reinforcing tube is fixed to the first main lifting shaft. The reinforcing tube is inclined, and its inclination direction is gradually inclined away from the center of gravity of the main beam from the side where the reinforcing tube is connected to the main beam. A pair of reinforcing plates are also provided on the main beam at the connection with the reinforcing tube, and the reinforcing plates are located on the upper and lower sides of the reinforcing tube, respectively.

[0011] Furthermore, an auxiliary square tube is provided on both sides of the second main hanging plate on the bottom end surface of the main beam. The auxiliary square tube extends along the width direction of the main beam, and the center axis of gravity of the auxiliary square tube is perpendicular to the center axis of gravity of the main beam.

[0012] Furthermore, several supporting columns are installed at the bottom of the main beam, and support feet are connected to the bottom of the supporting columns.

[0013] The advantages of this invention are as follows: The nacelle assembly hoisting system of this invention, through the cooperation between the hoisting bracket and the main hoisting component and the auxiliary hoisting component, adjusts the winding of the wire rope at different positions on the main hoisting component and the auxiliary hoisting component according to the different center of gravity positions of the nacelle assembly, so as to ensure the stability of the nacelle assembly during the hoisting process, and there is no need to weld lifting lugs on the outer shell of the nacelle assembly, which facilitates hoisting.

[0014] The main lifting seat is designed using components such as fixed square tubes, horizontal plates, lifting plates, and inclined plates. Compared to using a single lifting lug structure as the main lifting seat, this structure has higher structural strength and offers more options for rope direction when used with the wire rope of the lifting device.

[0015] The design of the first limiting shaft on the first main lifting plate utilizes the cooperation of two first limiting shafts on both sides to limit the wire rope wound on the first main lifting shaft, preventing the wire rope from slipping off the first main lifting shaft and affecting subsequent smooth lifting. Similarly, the design of the two second limiting shafts on the second main lifting shaft utilizes the cooperation of two second limiting shafts on both sides to limit the wire rope wound on the second main lifting shaft, preventing the wire rope from slipping off the second main lifting shaft and affecting subsequent smooth lifting.

[0016] The design of the reinforcing components utilizes the cooperation of reinforcing tubes to provide structural reinforcement between the first main lifting shaft and the main beam. The inclined design of the reinforcing tubes allows the two reinforcing tubes to form a triangular structure after connecting with the first main lifting shaft and the main beam, which is more stable. The design of the reinforcing plates on the upper and lower sides of the reinforcing tubes is to provide structural reinforcement between the reinforcing tubes and the main beam.

[0017] The auxiliary square tube is designed so that during hoisting, the wire rope can be passed through the auxiliary square tube to achieve the purpose of changing direction. Similarly, excess wire rope can also be wound by passing through the auxiliary square tube multiple times to ensure the tension of the wire rope.

[0018] The design of the supporting columns and feet at the bottom of the main beam is to facilitate the storage of the hoisting system when it is not in use, so that the main beam does not need to be placed on the ground. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the cabin assembly hoisting system of the present invention.

[0021] Figure 2 This is a side view of the nacelle assembly hoisting system of the present invention.

[0022] Figure 3 This is a schematic diagram of the second main lifting plate and the second main lifting shaft in this invention. Implementation

[0023] The following embodiments are intended to enable those skilled in the art to more fully understand the present invention, but do not limit the invention to the scope of the embodiments described.

[0024] like Figures 1-3 The illustrated nacelle assembly hoisting system includes A hoisting main frame includes a main beam 1, which is a hollow square tube. A first lifting ring 11 is provided on both sides of the main beam 1 along its long axis. A connecting block for installing the first lifting ring 11 is also connected to both sides of the main beam 1. A through hole for the first lifting ring 11 to pass through is opened on the connecting block. A main lifting seat is also provided at the upper end of the middle position of the main beam 1.

[0025] The main lifting base includes a fixed square tube 2 connected to the upper end face of the main beam 1. The fixed square tube 2 is vertically connected to the upper end face of the main beam 1. A horizontally arranged cross plate 21 is connected to the fixed square tube 2 and welded to the fixed square tube 2. A pair of parallel lifting plates 22 are installed on the cross plate 21. Each lifting plate 22 has a lifting hole, the center axis of which is perpendicular to the center axis of the main beam 1. The lifting plates 22 are vertically fixed to the upper end face of the cross plate 21, with a gap between the two lifting plates 22. An inclined plate 23 is also provided at the upper end of the lifting plates 22, and the inclined plates 23 on the two lifting plates 22 are arranged in an inverted V-shape. The design of the main lifting base uses components such as the fixed square tube 2, the cross plate 21, the lifting plates 22, and the inclined plate 23. Compared with using a single lifting lug structure as the main lifting base, this structure of the main lifting base has higher structural strength and provides more options for the rope direction when used with the wire rope of the lifting device.

[0026] A second lifting ring 13 is also installed on the main beam 1 next to the main lifting seat. The design of the second lifting ring 13 is to cooperate with the main lifting seat to realize the reversal of the wire rope after it comes out of the main lifting seat, or the wire rope enters the main lifting seat after being reversed by the second lifting ring 13, so that the cooperation between the main lifting seat and the wire rope is smoother.

[0027] A main lifting assembly is provided at the middle position of the main beam 1. The main lifting assembly includes a first main lifting shaft 3 connected to the middle position of the main beam. The first main lifting shaft 3 is perpendicular to the main beam 1 in the horizontal direction. The two sides of the first main lifting shaft 3 extend from the two sides of the width direction of the main beam 1. A reinforcing assembly is also provided between the first main lifting shaft 3 and the main beam 1. The reinforcing assembly includes a pair of reinforcing tubes 14 arranged side by side on both sides of the width direction of the main beam 1. The reinforcing tubes 14 are hollow square tubes. One side of the reinforcing tube 14 is fixed to the main beam 1, and the other side of the reinforcing tube 14 is fixed to the first main lifting shaft 3. The reinforcing tubes 14 are inclined. The inclination direction of the reinforcing tubes 14 is gradually inclined away from the center of gravity of the main beam 1 from the side where the reinforcing tubes 14 are connected to the main beam 1. A pair of reinforcing plates 15 are also provided on the main beam 1 at the connection with the reinforcing tubes 14. The reinforcing plates 15 are located on the upper and lower sides of the reinforcing tubes 14, respectively. The design of the reinforcing components utilizes the reinforcing tubes 14 to structurally strengthen the connection between the first main lifting shaft 3 and the main beam 1. The inclined design of the reinforcing tubes 14 allows the two reinforcing tubes 14 to form a triangular structure after connecting with the first main lifting shaft 3 and the main beam 1, which is more stable. The design of the reinforcing plates 15 on the upper and lower sides of the reinforcing tubes 14 is to structurally strengthen the connection between the reinforcing tubes 14 and the main beam 1.

[0028] A pair of circular first main lifting plates 31 are provided on both sides of the first main lifting shaft 3. The two first main lifting plates 31 are distributed on the first main lifting shaft 3 in an inner-outer position. The first main lifting plates 31 are coaxially arranged with the first main lifting shaft 3, and the diameter of the first main lifting plates 31 is larger than the diameter of the first main lifting shaft 3. A gap is left between the two first main lifting plates 31 of the same pair to allow the wire rope of the lifting device to be wound. This allows the wire rope to be repeatedly wound around the first main lifting shaft 3 to tighten the wire rope, or to select a suitable rope exit direction by continuously winding the wire rope.

[0029] On the two first main lifting plates 31 of the same pair, there are also first limiting shafts 32 for limiting the wire rope of the lifting device. There are two first limiting shafts 32, located on both sides of the first main lifting plate 31 respectively, and the first limiting shafts 32 are parallel to the center axis of gravity of the first main lifting plate 31. On both sides of the first main lifting plate 31 located on the outer side, there is also an outwardly extending fixed section, so that the size of the first main lifting plate 31 located on the outer side is larger than the size of the first main lifting plate 31 located on the inner side. A first through hole is opened on the fixed section to allow the first limiting shaft 32 to pass through. On the first main lifting shaft 3 near the first main lifting plate 31 located on the inner side, there is also a fixed shaft 33. The two sides of the fixed shaft 33 extend from the radial sides of the first main lifting shaft 3, and the overall length of the fixed shaft 33 is greater than the diameter of the first main lifting plate 31 located on the inner side. A second through hole is opened on both sides of the fixed shaft 33 to allow the first limiting shaft 32 to pass through. The first limiting shaft 32 passes through the first through hole and the second through hole in sequence and is fixed by a first spring pin 34. The design of the first limiting shaft 32 on the first main lifting plate 31 is to use the cooperation of the two first limiting shafts 32 on both sides to limit the wire rope wrapped on the first main lifting shaft 3, so as to prevent the wire rope from slipping off the first main lifting shaft 3 and affecting the subsequent smooth lifting.

[0030] A second main hanging plate 35 is also vertically installed on the main beam 1, below the first main hanging shaft 3, such as... Figure 3 As shown in the schematic diagram, the second main lifting plate 35 is directly welded to the bottom end face of the main beam 1. A pair of second main lifting shafts 36 are installed on the second main lifting plate 35, which are arranged in parallel along the long axis of the main beam 1. A stop shaft 37 is provided on both sides of the second main lifting shaft 36, and a gap is left between the stop shaft 37 and the second main lifting plate 35 to allow the wire rope of the lifting device to be wound. This allows the wire rope to be repeatedly wound around the second main lifting shaft 36 to tighten the wire rope, or to select a suitable rope exit direction by continuously winding the wire rope.

[0031] A pair of second limiting shafts 38 are also provided between the two stop shafts 37 connected to the same second main lifting shaft 36. A fixing block 39 is also provided at the end of the stop shaft 37. The fixing block 39 has a third through hole for the second limiting shaft 38 to pass through. A fourth through hole for the second limiting shaft 38 to pass through is also provided on the second main lifting plate 35. After the second limiting shaft 38 passes through the third and fourth through holes, it is fixed by a second spring pin 40. The design of the two second limiting shafts 38 on the second main lifting shaft 36 is to use the cooperation of the two second limiting shafts 38 on both sides to limit the wire rope wound on the second main lifting shaft 36, so as to prevent the wire rope from slipping off the second main lifting shaft 36 and affecting the subsequent smooth lifting.

[0032] On the bottom surface of the main beam 1, on both sides of the second main lifting plate 35, an auxiliary square tube 16 is respectively installed. The auxiliary square tube 16 is a hollow square tube with openings on both sides. The auxiliary square tube 16 extends along the width direction of the main beam 1, and its upper end face is welded and fixed to the bottom end face of the main beam 1. The center of gravity axis of the auxiliary square tube 16 is perpendicular to the center of gravity axis of the main beam 1. The design of the auxiliary square tube 16 is to allow the wire rope to pass through the auxiliary square tube 16 to achieve the purpose of changing direction during hoisting. Similarly, excess wire rope can be wound by passing through the auxiliary square tube 16 multiple times to ensure the tension of the wire rope.

[0033] A secondary lifting assembly is also provided on one side of the main beam 1. The secondary lifting assembly includes a pair of secondary lifting plates 4 arranged side by side on both sides of the main beam in the width direction. The secondary lifting plate 4 is a diamond-shaped plate. An upper secondary lifting shaft 41 and a lower secondary lifting shaft are installed between the two secondary lifting plates 4, and the upper and lower secondary lifting shafts are staggered in the vertical direction. The upper secondary lifting shaft 41 is located above the main beam 1, and a gap is left between the upper secondary lifting shaft 41 and the upper end face of the main beam 1 to allow the steel wire rope to pass through. The lower secondary lifting shaft is located below the main beam 1, and a gap is left between the lower secondary lifting shaft and the lower section of the main beam 1 to allow the steel wire rope to pass through. The staggered design of the upper and lower secondary lifting shafts 41 and 41 allows for different stress points and rope exit points. This not only reduces the stress on the secondary lifting plates 4 and improves their service life, but also allows for different rope exit points, enabling the lifting of the engine room assembly from multiple positions.

[0034] Several support columns 17 are installed at the bottom of the main beam 1, and support feet 18 are connected to the bottom of the support columns 17. The design of the support columns 17 and support feet 18 at the bottom of the main beam 1 is to facilitate the storage of the hoisting system when it is not in use, so that the main beam 1 does not have to be placed on the ground, which would cause relative friction between the main beam 1 and the ground and damage the surface of the main beam 1. In addition, there are components installed on the bottom surface of the main beam 1. If the main beam 1 is placed directly on the ground, the stability of the main beam 1 cannot be guaranteed, and the main beam is prone to swaying.

[0035] The nacelle assembly hoisting system of this invention, through the cooperation between the hoisting bracket and the main and auxiliary hoisting components, utilizes the mutual cooperation of components such as the first main hoisting shaft 3, the second main hoisting shaft 36, the upper auxiliary hoisting shaft 41, and the lower auxiliary hoisting shaft, which are distributed at different heights and positions, to hoist the nacelle assembly at different lifting points. Different rope directions and rope pitches ensure the stability of the nacelle assembly's center of gravity, enabling stable subsequent hoisting of the nacelle assembly. Furthermore, during hoisting, the nacelle assembly can be secured simply by passing several strands of steel wire rope around it at different positions, eliminating the need to weld lifting lugs to the nacelle assembly's outer shell, thus facilitating hoisting.

[0036] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A nacelle assembly hoisting system, characterized in that: include A hoisting main frame, the hoisting main frame including a main beam, the main beam being a hollow square tube, a first lifting ring being provided on both sides of the main beam along its long axis, and a main lifting seat being provided at the upper end of the middle position of the main beam; A main lifting assembly is provided at the middle position of the main beam. The main lifting assembly includes a first main lifting shaft connected to the middle position of the main beam. The first main lifting shaft is perpendicular to the main beam in the horizontal direction. The two sides of the first main lifting shaft extend from the two sides of the width direction of the main beam. A pair of circular first main lifting plates are provided on both sides of the first main lifting shaft. The two first main lifting plates are distributed on the first main lifting shaft in an inner-outer position. The first main lifting plates are coaxially arranged with the first main lifting shaft, and the diameter of the first main lifting plate is larger than the diameter of the first main lifting shaft. A gap is left between the two first main lifting plates of the same pair to accommodate the winding of the wire rope of the lifting device. A second main lifting plate is vertically installed below the first main lifting shaft on the main beam. A pair of second main lifting shafts are installed on the second main lifting plate, which are arranged in parallel along the long axis of the main beam. A stop shaft is installed on both sides of the second main lifting shaft, and a gap is left between the stop shaft and the second main lifting plate to accommodate the wire rope of the lifting device. A secondary suspension assembly is also provided on one side of the main beam. The secondary suspension assembly includes a pair of secondary suspension plates arranged side by side on both sides of the width direction of the main beam. An upper secondary suspension shaft and a lower secondary suspension shaft are installed between the two secondary suspension plates, and the upper and lower secondary suspension shafts are staggered in the vertical direction. The upper secondary suspension shaft is located above the main beam, and the lower secondary suspension shaft is located below the main beam.

2. The nacelle assembly hoisting system according to claim 1, characterized in that: The main hanger includes a fixed square tube connected to the upper end face of the main beam. A horizontal plate is connected to the fixed square tube. A pair of parallel hanging plates are installed on the horizontal plate. A hanging hole is opened in the hanging plate. The hanging plate is vertically installed on the horizontal plate. An inclined plate is also provided at the upper end of the hanging plate. The inclined plates on the two hanging plates are distributed in an inverted V-shape.

3. The nacelle assembly hoisting system according to claim 1, characterized in that: A second lifting ring is also installed on the main beam next to the main lifting seat.

4. The nacelle assembly hoisting system according to claim 1, characterized in that: On the two first main lifting plates of the same pair, there are also first limiting shafts for limiting the wire rope of the lifting device. There are two first limiting shafts, located on both sides of the first main lifting plate, and the first limiting shafts are parallel to the center axis of gravity of the first main lifting plate. On both sides of the first main lifting plate located on the outer side, there is an outwardly extending fixed section. A first through hole is opened on the fixed section to allow the first limiting shaft to pass through. On the first main lifting plate located on the inner side, there is also a fixed shaft. On both sides of the fixed shaft, there is a second through hole to allow the first limiting shaft to pass through. The first limiting shaft passes through the first through hole and the second through hole in sequence and is fixed by a first spring pin.

5. The nacelle assembly hoisting system according to claim 1, characterized in that: A pair of second limiting shafts are also provided between the two stop shafts connected to the same second main lifting shaft. A fixing block is also provided at the end of the stop shaft. A third through hole is opened on the fixing block to allow the second limiting shaft to pass through. A fourth through hole is also opened on the second main lifting plate to allow the second limiting shaft to pass through. The second limiting shaft is fixed by a second spring pin after passing through the third through hole and the fourth through hole.

6. The nacelle assembly hoisting system according to claim 1, characterized in that: A reinforcing assembly is also provided between the first main lifting shaft and the main beam. The reinforcing assembly includes a pair of reinforcing tubes arranged side by side on both sides of the width of the main beam. One side of the reinforcing tube is fixed to the main beam, and the other side of the reinforcing tube is fixed to the first main lifting shaft. The reinforcing tube is inclined, and its inclination direction is gradually inclined away from the center of gravity of the main beam from the side where the reinforcing tube is connected to the main beam. A pair of reinforcing plates are also provided on the main beam at the connection with the reinforcing tube, and the reinforcing plates are located on the upper and lower sides of the reinforcing tube, respectively.

7. The nacelle assembly hoisting system according to claim 1, characterized in that: On the bottom end face of the main beam, on both sides of the second main hanging plate, there is an auxiliary square tube. The auxiliary square tube extends along the width direction of the main beam, and the center axis of gravity of the auxiliary square tube is perpendicular to the center axis of gravity of the main beam.

8. The nacelle assembly hoisting system according to claim 1, characterized in that: Several supporting columns are also installed at the bottom of the main beam, and support feet are connected to the bottom of the supporting columns.

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