Replacement tool and wind generating set

Abstract

The replacement tool comprises a support, a moving platform and a hoisting mechanism, the support is arranged in a cabin, the moving platform is connected to the support and has the moving freedom degree relative to the support, the hoisting mechanism is connected to the moving platform, and the hoisting mechanism comprises a hoisting beam, a lifting device and a plurality of hoisting parts; the lifting parts are arranged on the lifting beam and used for being connected with lifting points of functional components, the lifting beam is connected with the movable platform and can synchronously move to the lifting opening with the movable platform, and the lifting device is connected with at least one of the movable platform and the lifting mechanism. And the functional part is driven to enter and exit from the cabin through the hoisting opening. According to the replacement tool and the wind generating set, replacement of functional parts can be achieved through the replacement tool, the structure is simple and reliable, meanwhile, cost is reduced, and operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a tooling replacement device and a wind turbine generator set. Background Technology

[0002] In a wind turbine generator set, the nacelle houses multiple functional components such as the gearbox and generator. These components are critical to the wind turbine's operation, and their performance directly impacts the generator set's efficiency and stability. Due to environmental factors, the gearbox needs to be replaced after prolonged use to extend the overall lifespan of the wind turbine generator set.

[0003] Currently, the replacement of functional components within wind turbine generators mainly relies on crane lifting. However, with the increasing size of wind turbine generators, the weight of functional components is gradually increasing, and the height of wind turbine generators is also increasing. Therefore, the performance requirements for cranes are becoming more stringent, necessitating the use of large-scale lifting systems, which increases operating and construction costs. Furthermore, the availability of cranes with the required performance is limited, leading to a decrease in operational efficiency. Utility Model Content

[0004] This application provides a tooling replacement device and a wind turbine generator set, which can replace functional components by replacing the tooling device. The structure is simple and reliable, while reducing costs and improving operation efficiency.

[0005] According to an embodiment of this application, a replacement fixture is proposed for a wind turbine generator set. The wind turbine generator set includes a nacelle and functional components disposed within the nacelle. The nacelle is provided with a hoisting port. The replacement fixture includes a support frame, a mobile platform, and a hoisting mechanism. The support frame is disposed within the nacelle. The mobile platform is connected to the support frame and has a degree of freedom of movement relative to the support frame. The hoisting mechanism is connected to the mobile platform and includes a lifting beam, a lifting device, and multiple hoisting parts. Each hoisting part is disposed on the lifting beam. The multiple hoisting parts are used to connect to the lifting points of the functional components respectively. The lifting beam is connected to the mobile platform and can move synchronously with the mobile platform to the hoisting port. The lifting device is connected to at least one of the mobile platform and the hoisting mechanism to drive the lifting beam to rise and fall and move the functional components from the hoisting port into and out of the nacelle.

[0006] According to one aspect of the embodiments of this application, the lifting device includes a winch and a sling connected to the winch. The mobile platform is provided with a fixed pulley, and the sling is wound around the fixed pulley of the mobile platform by the winch and connected to the lifting beam.

[0007] According to one aspect of the embodiments of this application, the lifting beam is provided with a movable pulley, and the number of fixed pulleys of the mobile platform is at least two, including a first fixed pulley and a second fixed pulley, and the sling is sequentially wound around the first fixed pulley, the movable pulley and the second fixed pulley and then connected to the movable pulley.

[0008] According to one aspect of the embodiments of this application, after the sling is wound around the first fixed pulley, it is wound in multiple turns between the movable pulley and the second fixed pulley.

[0009] According to one aspect of the embodiments of this application, the lifting beam includes crossbeams arranged opposite each other and a connecting beam connecting the crossbeams, a movable pulley is disposed on the connecting beam, and a plurality of lifting parts are disposed on each crossbeam.

[0010] According to one aspect of the embodiments of this application, the support is provided with a guide pulley, and the sling is wound by a winch around the guide pulley and the fixed pulley of the moving platform in sequence and connected to the lifting beam.

[0011] According to one aspect of the embodiments of this application, the support includes a frame body disposed opposite to each other along a first direction, the frame body being provided with a guide rail extending along a second direction, the two ends of the mobile platform along the first direction being attached to the frame body and being movable relative to the guide rail along the second direction, the second direction intersecting the first direction.

[0012] According to one aspect of the embodiments of this application, the frame includes pillars disposed opposite to each other along a second direction and a first load-bearing beam connected between the pillars, the frame overlaps the first load-bearing beam, the first load-bearing beam is detachably connected to the pillars, and / or, the support also includes a second load-bearing beam connected between the frames along a first direction, the second load-bearing beam being detachably connected to the frame.

[0013] According to one aspect of the embodiments of this application, the support column further includes a support leg connected to the end of the support column, the plane of which is located is inclined relative to the support column and is used to fit against the nacelle mounting surface.

[0014] According to an embodiment of this application, a wind turbine generator set is also proposed, including a nacelle, functional components, and replacement tooling as described in the above embodiment. The functional components are disposed in the nacelle, and the nacelle is provided with a hoisting port through which the functional components can pass. The replacement tooling is installed in the nacelle and used to replace the functional components.

[0015] The replacement fixture provided in this application is used to install inside the nacelle of a wind turbine generator. When it is necessary to replace a functional component inside the nacelle, multiple lifting sections on the lifting beam of the lifting mechanism can be connected to various lifting points on the functional component. The lifting beam is moved by the lifting device and the moving platform, allowing the functional component to be lowered directly to the ground from the lifting port on the nacelle or lifted into the nacelle from the ground, thus realizing the replacement of the functional component. By using the replacement fixture to replace functional components, there is no need to set up a crane, reducing construction costs. At the same time, the entire replacement fixture has a simple structure, is more convenient to operate, and has greater adaptability. Attached Figure Description

[0016] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a wind turbine generator set provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a wind turbine generator set provided in another embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the tooling replacement provided in one embodiment of this application;

[0020] Figure 4 This is a front view of a tooling replacement device provided in an embodiment of this application;

[0021] Figure 5 This is a flowchart of a method for replacing a functional component provided in an embodiment of this application.

[0022] In the attached image:

[0023] 100 - Wind turbine generator set; 200 - Tooling change;

[0024] 10 - Tower; 20 - Nacelle; 30 - Generator; 40 - Gearbox; 50 - Main shaft; 60 - Impeller;

[0025] 1-Support; 11-Frame; 111-Column; 112-First load-bearing beam; 113-Leg; 12-Second load-bearing beam; 2-Mobile platform; 21-Fixed pulley; 21a-First fixed pulley; 21b-Second fixed pulley; 3-Lifting mechanism; 31-Lifting beam; 311-Crossbeam; 312-Connecting beam; 32-Lifting device; 321-Winch; 322-Sling; 33-Lifting part; 34-Moving pulley; 4-Guide pulley;

[0026] X - Second direction; Y - First direction; Z - Vertical direction.

[0027] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0028] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0029] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the tooling replacement or wind turbine generator set of this application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] To better understand this application, the following will be combined with... Figures 1 to 5 The tooling and wind turbine generator set of the embodiments of this application are described in detail.

[0031] Please see Figure 1 , Figure 1 This application provides a schematic diagram of the structure of a wind turbine generator set 100 according to some embodiments. The wind turbine generator set 100 includes a tower 10, a nacelle 20, a generator 30, a gearbox 40, a main shaft 50, and an impeller 60. The nacelle 20 is located at the top of the tower 10. The generator 30 and gearbox 40 are located inside the nacelle 20. The main shaft 50 is located at the front end of the nacelle 20 and connected to the impeller 60. The input end of the gearbox 40 is connected to the main shaft 50, and the output end is connected to the generator 30, converting the low-speed rotation of the main shaft 50 into high-speed rotation and transmitting it to the generator 30. When wind power acts on the blades, it drives the entire impeller 60 to rotate. The impeller 60 transmits power to the generator 30 through the main shaft 50 and gearbox 40, driving the generator 30's shaft to rotate, thereby converting wind energy into electrical energy and fulfilling the power generation requirements of the wind turbine generator set 100.

[0032] For the wind turbine generator set 100, multiple functional components such as the gearbox 40 and generator 30 are installed inside the nacelle 20. In related technologies, when it is necessary to replace a functional component, a large crane is required to lift the entire nacelle 20 or the functional components inside the nacelle 20 from the top of the tower 10. However, as the wind turbine generator set 100 becomes larger, the weight of the functional components and the height of the nacelle 20 also gradually increase. Using a crane to replace functional components not only results in high crane costs and construction costs, but also suffers from drawbacks such as limited crane resources and reduced lifting efficiency.

[0033] Therefore, in order to overcome the above-mentioned defects, this application embodiment also provides a replacement tooling 200. The replacement tooling 200 can be installed on the wind turbine generator set 100 of the above embodiments and serve as a component of the wind turbine generator set 100. Of course, it can also be produced or sold separately as an independent component.

[0034] Please refer to the following: Figure 1 as well as Figure 3 , Figure 2 The following are schematic diagrams of the structure of the wind turbine generator set 100 in other embodiments of this application. Figure 3 A schematic diagram of the structure of the replacement tooling 200 provided in some embodiments of this application is shown.

[0035] This application provides a replacement fixture 200, which includes a support 1, a mobile platform 2, and a hoisting mechanism 3. The support 1 is disposed inside the cabin 20. The mobile platform 2 is connected to the support 1 and has a degree of freedom of movement relative to the support 1. The hoisting mechanism 3 is connected to the mobile platform 2 and includes a lifting beam 31, a lifting device 32, and multiple hoisting parts 33. Each hoisting part 33 is disposed on the lifting beam 31. The multiple hoisting parts 33 are used to connect to each lifting point of the functional component. The lifting beam 31 is connected to the mobile platform 2 and can move synchronously with the mobile platform 2 to the hoisting port on the cabin 20. The lifting device 32 is connected to at least one of the mobile platform 2 and the hoisting mechanism 3 to drive the lifting beam 31 to rise and fall and drive the functional component to enter and exit the cabin 20 through the hoisting port.

[0036] The replacement fixture 200 in this embodiment is installed inside the nacelle 20 of the wind turbine generator set 100. When it is necessary to replace a functional component inside the nacelle 20, multiple lifting parts 33 on the lifting beam 31 of the lifting mechanism 3 can be connected to various lifting points on the functional component. The lifting device 32 and the moving platform 2 drive the lifting beam 31 to move, allowing the functional component to be lowered directly to the ground from the lifting port on the nacelle 20 or lifted into the nacelle 20 from the ground, thus realizing the replacement of the functional component. By using the replacement fixture 200 to replace the functional component, there is no need to set up a crane, reducing construction costs. At the same time, the entire replacement fixture 200 has a simple structure, is more convenient to operate, and has stronger adaptability.

[0037] It is understood that the functional components include at least one of the gearbox 40 and the generator 30. That is, the replacement fixture 200 can be used to replace either the gearbox 40 or the generator 30. The replacement fixture 200 can connect multiple lifting parts 33 of the lifting beam 31 to the corresponding lifting points of the functional components according to the functional components to be replaced, so as to achieve reliable replacement of the functional components. In the embodiment of this application, the replacement fixture 200, by setting multiple lifting parts 33 on the lifting beam 31, can realize the replacement and lifting of functional components using only one lifting mechanism 3, which is simple in structure and more convenient and reliable in operation.

[0038] The aforementioned replacement tool 200 can be directly fixed in the wind turbine generator set 100, or when it is necessary to replace a functional component, the bracket 1 of the replacement tool 200 can be detachably connected to the nacelle 20 of the wind turbine generator set 100, so that the functional component can be replaced by replacing the tool 200.

[0039] The nacelle 20 is provided with a lifting port, which can be formed by removing part of the shell of the nacelle 20 when replacing functional components. Alternatively, the nacelle 20 can be provided with a lifting port. The wind turbine generator set 100 also includes a cover plate, which is detachably connected to the nacelle 20 and covers the lifting port. When it is necessary to replace functional components, the lifting port can be opened by opening or removing the cover plate, so that the functional components can enter and exit the nacelle 20 through the lifting port.

[0040] Optionally, the hoisting port is located at the bottom of the nacelle 20 to facilitate the entry and exit of functional components into and out of the nacelle 20. It is understood that the specific location and opening area of ​​the hoisting port can be adjusted according to the specific structure of the nacelle 20, as long as it meets the space requirements for hoisting and maintaining functional components. This application does not impose specific limitations in this regard.

[0041] Taking the disassembly of a functional component and its hoisting from the cabin 20 to the ground as an example, the functional component needs to be moved to the hoisting port via the mobile platform 2 first, and then the lifting beam 31 driven by the lifting device 32 will hoist the functional component to the ground via the hoisting port.

[0042] To facilitate understanding of the technical solution of this application, the components in the embodiments of this application will be described in detail below in conjunction with each step.

[0043] Please see Figures 1 to 3 As an optional implementation, the support 1 includes a frame 11 disposed opposite to each other along the first direction Y. The frame 11 is provided with a guide rail extending along the second direction X. The two ends of the moving platform 2 along the first direction Y are attached to the frame 11 and can move relative to the guide rail along the second direction X. The second direction X intersects the first direction Y.

[0044] The bracket 1 is installed within the engine compartment 20 and provides support during the replacement of functional components, enabling reliable replacement. The bracket 1 includes a guide rail extending along a second direction X. The moving platform 2 can move relative to the guide rail along the second direction X to move the lifting beam 31 and the functional components it lifts above the lifting port. By configuring the bracket 1 as a frame structure, its structure is simplified, its weight is reduced, and the frame 11 can reuse existing unit interfaces for quick connection and fixation, resulting in lower requirements for the unit and space.

[0045] Optionally, the mobile platform 2 may be equipped with guide wheels. The guide wheels of the mobile platform 2 contact the guide rails of the frame 11, reducing the friction between the mobile platform 2 and the frame 11, making it easier for the mobile platform 2 to move relative to the frame 11 along the first direction Y. The structure is simple and easier to install and implement.

[0046] Optionally, the tooling replacement 200 may also include a drive device, which is connected to the mobile platform 2 and is used to drive the mobile platform 2 to move relative to the frame 11 in the second direction X. The drive device may be configured as at least one of a gear and rack drive, a ball screw drive, a linear drive, etc.

[0047] In some alternative embodiments, the frame 11 includes pillars 111 disposed opposite each other along the second direction X and a first load-bearing beam 112 connected between the pillars 111, the frame 11 overlapping the first load-bearing beam 112, the first load-bearing beam 112 being detachably connected to the pillars 111, and / or, the support 1 further includes a second load-bearing beam 12 connected between the frame 11 along the first direction Y, the second load-bearing beam 12 being detachably connected to the pillars 111.

[0048] The first and second load-bearing beams 112 are detachably connected to the support column 111, allowing the support 1 to be configured as a modular structure. The replacement tooling 200 can be disassembled into several parts for easy access to the nacelle 20. When a functional component needs to be replaced, each part can be transported to the nacelle 20 and then assembled to form the replacement tooling 200. This reduces the difficulty of installing the replacement tooling 200 in the nacelle 20 without affecting the normal operation of the wind turbine generator set 100, and makes it easier to assemble the support 1 and connect it to the nacelle 20.

[0049] Optionally, the first load-bearing beam 112, the second load-bearing beam 12, and the support column 111 are fixed together by bolts. This arrangement can strengthen the structural strength of the bracket 1 and improve the stability of functional component replacement.

[0050] In some alternative embodiments, the strut 111 further includes a leg 113 connected to the end of the strut 111, the plane of which the leg 113 is located is inclined relative to the strut 111 and is used to fit against the mounting surface of the nacelle 20.

[0051] Since the bracket 1 is connected to the mounting surface of the nacelle 20, and the mounting surface of part of the nacelle 20 may be inclined, by setting the support leg 113 at the end of the support column 111 and making the plane of the support leg 113 inclined relative to the support column 111, it can fit in contact with the surface of the nacelle 20, improve the stability of the bracket 1, facilitate the smooth hoisting and replacement of functional components, and also increase the actual contact area between the bracket 1 and the mounting surface of the nacelle 20, reduce damage to the nacelle 20, and improve reliability.

[0052] It is understandable that after the functional components are moved along the second direction X by the mobile platform 2 to above the hoisting port, the lifting beam 31 and the functional components need to be moved out of the cabin 20 by the lifting device 32.

[0053] In some alternative embodiments, the lifting device 32 includes a winch 321 and a sling 322 connected to the winch 321. The mobile platform 2 is provided with a fixed pulley 21. The sling 322 is wound around the fixed pulley 21 of the winch 321 and connected to the lifting beam 31.

[0054] The aforementioned fixed pulley 21 and sling 322 not only connect the mobile platform 2 and the lifting beam 31, but also allow the winch 321 to be installed outside the nacelle 20. By winding the sling 322 around the fixed pulley 21 of the mobile platform 2 and connecting it to the lifting beam 31, the winch 321 drives the sling 322 to raise and lower, thereby raising and lowering the lifting beam 31. The fixed pulley 21 of the mobile platform 2 serves as a guide. Since the fixed pulley 21 moves synchronously with the mobile platform 2, it ensures the relative position and angle between the sling 322 and the fixed pulley 21, ensuring that the force on the sling 322 remains constant and improving the stability of the lifting of the functional components.

[0055] By placing the winch 321 outside the nacelle 20, the space occupied inside the nacelle 20 during tooling changes can be reduced. At the same time, a more powerful winch 321 can be used to meet the hoisting requirements of functional components. Specifically, the winch 321 can be placed on the ground for easy operation and improved convenience.

[0056] It is understandable that the sling 322 is wound around the fixed pulley 21 of the moving platform 2 by the winch 321 and connected to the lifting beam 31. The sling 322 can be directly connected to the lifting beam 31, for example, the lifting beam 31 is provided with a fixed position and the end of the sling 322 is directly connected to the fixed position of the lifting beam 31. Alternatively, the sling 322 can be indirectly connected to the lifting beam 31.

[0057] Please see Figures 1 to 4 , Figure 4A front view of the replacement tooling 200 provided in some other embodiments of this application is shown. As an optional implementation, the lifting beam 31 is provided with a movable pulley 34, and the number of fixed pulleys 21 of the moving platform 2 is at least two, including a first fixed pulley 21a and a second fixed pulley 21b. The sling 322 is connected to the movable pulley 34 after being sequentially wound around the first fixed pulley 21a, the movable pulley 34, and the second fixed pulley 21b.

[0058] The mobile platform 2 can be equipped with a first fixed pulley 21a and a second fixed pulley 21b. The first fixed pulley 21a and the second fixed pulley 21b on the mobile platform 2, together with the movable pulley 34 on the lifting beam 31, form a pulley group. Since the slings 322 pass over both sides of the movable pulley 34 when the lifting beam 31 is raised or lowered, both slings 322 on both sides of the movable pulley 34 bear the weight of the functional component. This distributes the required tension across the slings 322 on both sides, thereby enabling reliable lifting of the functional component through the pulley group while reducing the tension required by the winch 321 on the slings 322 during lifting. This makes the operation of the winch 321 easier and more convenient, improving work efficiency and the reliability of the lifting process of the functional component.

[0059] In some alternative embodiments, after the sling 322 is wound around the first fixed pulley 21a, it is wound in multiple turns between the movable pulley 34 and the second fixed pulley 21b.

[0060] By winding the sling 322 in multiple loops between the movable pulley 34 and the second fixed pulley 21b, the number of segments of the sling 322 used to support the weight of the functional components can be increased, thereby increasing the effort-saving ratio of the pulley block. This further reduces the tension required by the winch 321 on the sling 322 when lifting the functional components, lowers the power requirements of the winch 321, increases the service life of the winch 321, and reduces costs. Furthermore, it makes the pulley block more stable and efficient when lifting functional components, further improving work efficiency and the reliability of the lifting process.

[0061] It is understandable that in actual design, the number of turns of the sling 322 should not be too few, which would increase the load on the winch 321, nor should the number of turns of the sling 322 be too many, which would increase unnecessary complexity and cost. The specific number of turns of the sling 322 can be determined according to the weight of the functional components and the diameter of the sling 322. This application does not make specific limitations in this regard.

[0062] In some alternative embodiments, the support 1 is provided with a guide pulley 4, and the sling 322 is wound by the winch 321 around the guide pulley 4 and the fixed pulley 21 of the moving platform 2 and connected to the lifting beam 31.

[0063] The support frame 1 is also equipped with a fixed guide pulley 4. By having the sling 322 wind around the guide pulley 4 on the support frame 1 before winding around the fixed pulley 21 on the moving platform 2, the sling 322 can be guided by the guide pulley 4 and the connection path of the sling 322 in the cabin 20 can be restricted. This reduces the risk of interference between the sling 322 and other components in the cabin 20 during the lifting of the lifting beam 31 and functional components, and improves the reliability of functional component replacement.

[0064] It is understood that the replacement tooling 200 in this embodiment of the application can reliably replace functional components using only the above-mentioned set of pulleys, which is not only more labor-saving, but also simpler in structure and more convenient to operate.

[0065] Since the sling 322 is indirectly connected to the lifting beam 31, the sling 322 applies a vertical force Z to the lifting beam 31 through the rotation of the movable pulley 34 and the tension of the sling 322, thereby driving the lifting beam 31 to rise and fall, in order to improve the reliability of the lifting process of the lifting beam 31, in some optional embodiments, the lifting beam 31 includes a crossbeam 311 arranged opposite to each other and a connecting beam 312 connecting the crossbeams 311, the movable pulley 34 is arranged on the connecting beam 312, and multiple lifting parts 33 are arranged on each crossbeam 311.

[0066] The lifting beam 31 can be configured as an H-type lifting beam 31 to improve its load-bearing capacity and maintain stability and reliability during the lifting of functional components. Furthermore, the H-type lifting beam 31 also has a reasonable strength-to-weight ratio, allowing it to provide high load-bearing capacity while maintaining a relatively light weight, making it easier to transport and install the tooling 200.

[0067] When the lifting beam 31 is set as an H-shaped lifting beam 31, multiple lifting parts 33 can be set on the crossbeam 311, and the movable pulley 34 can be set on the connecting beam 312 to optimize the stress on the lifting beam 31, so that the lifting beam 31 can remain stable and smooth during the lifting process, while reducing the risk of deformation or damage to the lifting beam 31.

[0068] Optionally, a lifting lug may be provided on the side of the lifting beam 31 away from the mobile platform 2, and the lifting part 33 may be provided as a lifting strap, which is connected to the lifting point on the functional component to realize the lifting of the functional component. The specific position of the lifting lug can be set according to the position of the lifting point on the functional component, and the lifting lug can be distributed at the corners of the lifting beam 31 to facilitate the load-bearing of the lifting beam 31.

[0069] Optionally, the connection position of the movable pulley 34 on the connecting beam 312 is adjustable so that the force of the sling 322 on the lifting beam 31 passes through the center of gravity of the functional component in the vertical direction Z, so as to achieve stable hoisting of the functional component.

[0070] For ease of description, the following will use the example of the gearbox 40 as the functional component and the gearbox 40 being hoisted from the nacelle 20 to the ground to explain the method of replacing the gearbox 40 of the wind turbine generator set 100.

[0071] Please see Figures 1 to 5 , Figure 5 A flowchart illustrating a method for replacing functional components provided in some embodiments of this application is shown. The method for replacing the gearbox 40 may include the following steps:

[0072] First, the replacement tooling 200 in the above embodiment is installed in the engine compartment 20, and the multiple lifting parts 33 on the lifting beam 31 are respectively connected to the lifting points on the gearbox 40.

[0073] Then, the connecting parts between the gearbox 40 and the spindle 50 are removed, and the moving platform 2 of the tooling changer 200 is controlled to move along the second direction X, so as to transport the functional components to the hoisting port opened on the engine compartment 20.

[0074] Finally, the hoist 322 is slowly released by the winch 321, and the lifting beam 31 is controlled to descend vertically in the Z direction, so that the functional components are transported to the bottom through the hoisting port.

[0075] In summary, the replacement fixture 200 in this embodiment allows for the replacement of functional components within the engine room 20 when necessary. Multiple lifting sections 33 on the lifting beam 31 of the lifting mechanism 3 are connected to lifting points on the functional components. The lifting device 32 and the moving platform 2 then move the lifting beam 31, allowing the functional components to be lowered directly to the ground from the lifting port on the engine room 20 or lifted into the engine room 20 from the ground, thus enabling component replacement. By using the replacement fixture 200, the gearbox 40 can be replaced without the need for a crane, reducing construction costs. Furthermore, it offers advantages such as simple structure, convenient operation, and strong adaptability, making it easy to promote and apply.

[0076] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A replacement tooling for a wind power generating set (100) comprising a nacelle (20) and functional components arranged within the nacelle (20), the nacelle (20) being provided with a hoist opening, characterized in that, The replacement tool (200) comprises: a support (1) arranged in the cabin (20); a moving platform (2) connected to the support (1) and having a moving degree of freedom relative to the support (1); a hoisting mechanism (3) connected to the moving platform (2), the hoisting mechanism (3) comprising a hoisting beam (31), a lifting device (32), and a plurality of hoisting parts (33), each of the hoisting parts (33) being arranged on the hoisting beam (31), the plurality of hoisting parts (33) being used to be connected to each lifting point of the functional component respectively, the hoisting beam (31) being connected to the moving platform (2) and being capable of moving synchronously with the moving platform (2) to the hoisting opening, the lifting device (32) being connected to at least one of the moving platform (2) and the hoisting mechanism (3) to drive the hoisting beam (31) to lift and drive the functional component to enter and exit the cabin (20) through the hoisting opening.

2. The replacement tooling of claim 1, wherein, The lifting device (32) comprises a winch (321) and a sling (322) connected to the winch (321), the moving platform (2) is provided with a fixed pulley (21), and the sling (322) is wound around the fixed pulley (21) of the moving platform (2) by the winch (321) and is connected to the hoisting beam (31).

3. The replacement tooling of claim 2, wherein, The hoisting beam (31) is provided with a movable pulley (34), the number of the fixed pulleys (21) of the moving platform (2) is at least two, the at least two fixed pulleys (21) comprise a first fixed pulley (21a) and a second fixed pulley (21b), and the sling (322) is sequentially wound around the first fixed pulley (21a), the movable pulley (34), and the second fixed pulley (21b) and then connected to the movable pulley (34).

4. The replacement tooling of claim 3, wherein, After being wound around the first fixed pulley (21a), the sling (322) is wound around the movable pulley (34) and the second fixed pulley (21b) in multiple turns.

5. The exchange tool of claim 3 or 4, wherein, The hoisting beam (31) comprises oppositely arranged cross beams (311) and a connecting beam (312) connecting the cross beams (311), and the movable pulley (34) is arranged on the connecting beam (312), and the plurality of hoisting parts (33) are arranged on each of the cross beams (311).

6. The replacement tooling of claim 2, wherein, The support (1) is provided with a guide pulley (4), and the sling (322) is sequentially wound around the guide pulley (4) and the fixed pulley (21) of the moving platform (2) by the winch (321) and is connected to the hoisting beam (31).

7. The replacement tooling of claim 1, wherein, The support (1) comprises a frame body (11) oppositely arranged along a first direction (Y), the frame body (11) is provided with a guide rail extending along a second direction (X), the moving platform (2) is lapped on the frame body (11) at both ends along the first direction (Y) and is capable of moving along the second direction (X) relative to the guide rail, and the second direction (X) intersects the first direction (Y).

8. The replacement tooling of claim 7, wherein, The frame body (11) comprises a support column (111) oppositely arranged along the first direction (Y) and a first bearing beam (112) connected between the support columns (111), the frame body (11) is overlapped on the first bearing beam (112), and the first bearing beam (112) is detachably connected to the support columns (111); And / or, the support frame (1) further comprises a second bearing beam (12) connected between the frame bodies (11) along the first direction (Y), and the second bearing beam (12) is detachably connected to the support columns (111).

9. The replacement tooling of claim 8, wherein, The support column (111) further comprises a support leg (113) connected to the end of the support column (111), and the plane of the support leg (113) is arranged obliquely relative to the support column (111) and is used to be fitted with the mounting surface of the cabin (20).

10. A wind power unit, characterized in that Comprise: A cabin (20); A functional component arranged in the cabin (20), and the cabin (20) is provided with a lifting opening through which the functional component passes; The replacement tool (200) according to any one of claims 1 to 9, wherein the replacement tool (200) is mounted on the cabin (20) and is used for replacing the functional component.

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