Hoisting tool

Abstract

The hoisting tool provided by the embodiment of the application comprises a base, a hoisting arm and a holding arm. The base has a docking port. The hoisting arm has a predetermined height. One end of the hoisting arm in the height direction is movably connected to the docking port and has a rotation freedom degree relative to the base. The other end of the hoisting arm is configured to be connected to an equipment. The hoisting arm extends away from the base on one side in the height direction. The holding arm is connected to two sides of the base in the horizontal direction. The holding arm is movably connected to the base and has a swing freedom degree relative to the base. The holding arms arranged in pairs extend in the horizontal direction and enclose the base to form a fixing cavity. The holding arm is configured to extend in a direction matching the contour of a tower tube and be clamped to the outer wall of the tower tube, so that the fixing cavity accommodates the tower tube. The scheme can improve the hoisting efficiency of large component equipment, reduce the overall hoisting cost and have better operation convenience.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and more specifically, to a hoisting tool. Background Technology

[0002] During the operation and maintenance of wind turbine generators, it is usually necessary to hoist the equipment inside the nacelle at the top of the tower in order to install or replace the equipment.

[0003] Currently, the replacement of large components in offshore wind turbine generators is mostly carried out using frame-type lowering fixtures or lifting vessels. The fixtures are used to lift large components such as generators, gearboxes, or electrical control boxes from the nacelle, making it easier to complete the subsequent installation or disassembly process.

[0004] However, the current tooling has poor versatility and the assembly time is relatively long, making it difficult for workers to efficiently replace equipment. Overall, the hoisting efficiency is low and the hoisting cost is high. Utility Model Content

[0005] In order to overcome the technical problems mentioned in the above technical background, the present application provides a hoisting fixture that can improve the hoisting efficiency of large components and equipment, reduce the overall hoisting cost, and has better operational convenience.

[0006] This application provides a hoisting fixture for use in a wind turbine generator set. The hoisting fixture is configured to be connected to the tower of the wind turbine generator set and to hoist equipment in the wind turbine generator set. It includes a base, a boom, and a clamp. The base has a mating interface. The boom has a predetermined height. One end of the boom is movably connected to the mating interface in its height direction and has a rotational degree of freedom relative to the base. The other end of the boom is configured to connect to a device. The boom extends in the height direction along the side away from the base. The clamps are connected in pairs to both sides of the base in the horizontal direction. The clamps are movably connected to the base and have a swinging degree of freedom relative to the base. The paired clamps extend in the horizontal direction and enclose the base to form a fixed cavity. The clamps are configured to extend in a direction that matches the contour of the tower and clamp onto the outer wall of the tower so that the fixed cavity can accommodate the tower.

[0007] As one embodiment of this application, the boom includes a base and a first body member. The base is movably connected to the interface and has a rotational degree of freedom relative to the base. The first body member extends in the height direction and is movably connected to the base at one end and configured as a connecting device at the other end. The first body member has a swinging degree of freedom relative to the base.

[0008] As one embodiment of this application, the boom further includes a drive assembly, which includes a first drive member. The first drive member has telescopicity in a first direction and is connected between the base and the first body member. One end of the first drive member is connected to the base and the other end can drive the first body member to swing relative to the base in a first direction. The first direction intersects with the height direction.

[0009] As one embodiment of this application, the driving component includes a first adapter and a second adapter. The first adapter and the second adapter are movably connected and their opposite ends are respectively connected to a first body component. One end of the first adapter is movably connected to the connection position between the first body component and the base. The first adapter is connected to a first driving component, and the first driving component can drive the first adapter, the second adapter, and the first body component to swing relative to the base in a first direction.

[0010] As one embodiment of this application, the second adapter extends in the height direction and has telescoping properties in the height direction, and the second adapter can drive the first body to swing relative to the base in the height direction.

[0011] As one embodiment of this application, a bearing is provided at the interface. The bearing includes a fixed ring and a rotating ring that are rotatably fitted together and interlocked. The fixed ring is connected to the base and the rotating ring is connected to one end of the boom.

[0012] As one embodiment of this application, the arm includes a second body component and a snap-fit ​​component. The second body component is movably connected to the base and has a swing freedom relative to the base. The second body components on both sides of the base enclose a fixed cavity. The snap-fit ​​component is disposed on the side of the second body component near the fixed cavity. The snap-fit ​​component has a snap-fit ​​groove. The snap-fit ​​component is configured to extend in a direction that matches the flange profile on the tower and snaps onto the outer wall of the flange so that the snap-fit ​​groove accommodates the flange.

[0013] As one embodiment of this application, the snap-fit ​​component includes a first snap-fit ​​portion and a second snap-fit ​​portion that are connected to each other. The first snap-fit ​​portion and the second snap-fit ​​portion each have a limiting protrusion at one end in the height direction and at the other end facing away from each other. A snap-fit ​​groove is formed between the two limiting protrusions.

[0014] As one embodiment of this application, the snap-fit ​​component further includes a pin, with a first snap-fit ​​portion and a second snap-fit ​​portion movably connected to both sides of the pin in the height direction, and the first snap-fit ​​portion and the second snap-fit ​​portion respectively having a swinging degree of freedom relative to the pin.

[0015] As one embodiment of this application, the arm includes multiple snap-fit ​​members, which are arranged at intervals on the side of the second body member near the fixing cavity.

[0016] As one embodiment of this application, the arm includes a second body and a first telescopic member. The first telescopic member has telescopicity in the horizontal direction and is connected between the second body and the base.

[0017] As one embodiment of this application, the arm includes a second telescopic member, which has telescopicity in the horizontal direction. The second body includes a plurality of movably connected sub-arm portions, which extend in the horizontal direction and are connected one after another. The second telescopic member is connected between two adjacent sub-arm portions.

[0018] As one embodiment of this application, the hoisting fixture also includes a support beam, on which a fixed pulley is provided, and the support beam is detachably connected to the base.

[0019] As one embodiment of this application, a positioning pin is provided on the base, and a positioning hole is provided on the support beam that is aligned and matched with the positioning pin, so that the positioning pin can be inserted into the positioning hole.

[0020] As one embodiment of this application, a movable pulley is provided on the base.

[0021] As one embodiment of this application, a fixing member is provided on the boom, the fixing member protrudes from the boom, the fixing member has a fixing groove, and the fixing groove is configured to engage the lifting rope.

[0022] This application provides a hoisting fixture. By installing a boom and a clamping arm on a base, the boom connects to the equipment in the wind turbine generator set, and the clamping arm grips the outer wall of the wind turbine generator set's tower, providing a stable anchor point for the hoisting fixture. The boom can then lift large components from the nacelle, facilitating the replacement of these components. This hoisting fixture features a simple and flexible structure, making it easy for workers to lift large components, saving time and effort, improving operational convenience, increasing overall hoisting efficiency, and reducing costs during the hoisting process. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the boom structure in a hoisting fixture according to an embodiment of this application.

[0025] Figure 2This is a schematic diagram of the drive assembly in the boom of the present application embodiment.

[0026] Figure 3 This is a schematic diagram of the boom structure in a hoisting tool according to an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the snap-fit ​​component in the arm of the embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the structure of a support beam in a hoisting fixture according to an embodiment of this application.

[0029] Figure 6 This is a schematic diagram of the structure of the fixing component in the boom of the present application embodiment.

[0030] Figure 7 This is a schematic diagram of the installation of a hoisting tool on a tower in an embodiment of this application.

[0031] Figure label: 100 - Lifting equipment; 200 - Tower; 10-Base; 11-Matching interface; 12-Positioning pin; 13-Moving pulley; 20-Lifting arm; 21-Base; 22-First main body component; 23-Fixing component; 24-Fixing groove; 30-Arm; 31-Second body component; 31a-Sub-arm portion; 32-Snap-fit ​​component; 32a-First snap-fit ​​portion; 32b-Second snap-fit ​​portion; 32c-Limiting protrusion; 33-Snap-fit ​​groove; 34-Pin shaft; 35-First telescopic component; 36-Second telescopic component; 40-Drive assembly; 41-First drive component; 42-First adapter; 43-Second adapter; 50-Bearing; 51-Fixing ring; 52-Rotating ring; 60-Support beam; 61-Fixed pulley; 62-Positioning hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. It should be noted that, unless otherwise specified, different features in the embodiments of this application can be combined with each other.

[0035] For ease of understanding, the accompanying diagram shows the mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the X-axis is called the X-direction, the direction along the Y-axis is called the Y-direction, and the direction along the Z-axis is called the Z-direction. The Z-direction is the normal direction relative to the plane containing the X and Y directions. Furthermore, a view where various elements are observed parallel to the plane containing the X and Y directions is called a top view. Alternatively, the planes in the X and Y directions can be planes parallel to the display surface of the display panel, and the Z-direction can be a direction parallel to the thickness direction of the display panel.

[0036] For certain elements, terms like "above" or "overhead" are sometimes used when describing the position of an element in the Z direction, and "below" or "under" are used when describing the position of an element in the opposite direction. Furthermore, when using terms like "above," "overhead," "below," "under," or "relative" to define the positional relationship between two elements, this includes not only the state where the two elements are directly adjacent, but also the state where the two elements are separated by gaps or other elements. Additionally, terms like "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0037] Please see Figure 1 and Figure 3This application provides a lifting fixture 100 for use in a wind turbine generator set. The lifting fixture 100 is configured to be connected to the tower 200 of the wind turbine generator set and to lift equipment in the wind turbine generator set. It includes a base 10, a boom 20, and a jib 30. The base 10 has a connection interface 11; the boom 20 has a predetermined height, one end of the boom 20 is movably connected to the connection interface 11 in its height direction and has rotational freedom relative to the base 10, and the other end of the boom 20 is configured with... For connecting equipment, the boom 20 extends in the height direction along the side away from the base 10; the clamping arms 30 are connected in pairs to the two sides of the base 10 in the horizontal direction. The clamping arms 30 are movably connected to the base 10 and have a swing degree of freedom relative to the base 10. The paired clamping arms 30 extend in the horizontal direction and enclose the base 10 to form a fixed cavity. The clamping arms 30 are configured to match the outline of the tower 200 in the extension direction and clamp onto the outer wall of the tower 200 so that the fixed cavity can accommodate the tower 200.

[0038] Optionally, the equipment in the wind turbine generator set that the hoisting fixture 100 can hoist in this embodiment can be large components such as gearboxes, generators, and electrical control cabinets. This application does not make any special limitation on the specific equipment that the hoisting fixture 100 can hoist.

[0039] The hoisting fixture 100 in this embodiment includes a base 10, a boom 20, and a clamping arm 30. The base 10 is connected to the boom 20 through its own interface 11, and the boom 20 can rotate relative to the base 10, thereby facilitating rotation adjustment when hoisting equipment. Optionally, the boom 20 can be a curved multi-segment arc structure, such as the three-segment splicing structure shown in the figure. The boom 20 has a certain height. This application does not impose special limitations on the specific structure and height of the boom 20, as long as it meets the hoisting space requirements of the equipment.

[0040] Optionally, the base 10 in the hoisting fixture 100 in this embodiment can be a block structure used to connect and support the boom 20 and the clamp 30. The boom 20 and the clamp 30 are respectively connected to the base 10 and can move relative to the base 10, thereby improving the flexibility during the hoisting process.

[0041] Considering the need to use the boom 30 in the hoisting fixture 100 to grip the outer wall of the tower 200, this embodiment requires the boom 30 to be able to swing relative to the base 10. The boom 30 and the base 10 together form a fixed cavity. When the hoisting fixture 100 needs to be installed on the outer wall of the tower 200, the boom 30 is first opened outward relative to the base 10, increasing the space of the fixed cavity. After it surrounds the outer wall of the tower 200, the boom 30 is then swung inward relative to the base 10, causing the fixed cavity to contract until the boom 30 grips the outer wall of the tower 200, thus fixing the hoisting fixture 100 to the outer wall of the tower 200, facilitating the subsequent operation of the boom 20. Figure 7 As shown.

[0042] To ensure the connection stability between the hoisting fixture 100 and the outer wall of the tower 200, in this embodiment, the outline of the clamping arm 30 can be set to be consistent with the outline of the outer wall of the tower 200. Optionally, the clamping arm 30 can be set to an arc-shaped structure, so that the contact between the two is closer during the process of clamping the tower 200, which improves the tightness of the connection between the two and provides a stable and reliable foundation for the subsequent hoisting of the equipment.

[0043] Optionally, the boom 20 can rotate relative to the base 10. When it is necessary to lift the equipment out of the nacelle, the boom 20 can rotate relative to the base 10 to a position above the nacelle. After connecting the equipment with the wire rope, the equipment is gradually lifted. Then the boom 20 can rotate outward to a position away from the nacelle, and then the equipment is gradually lowered to complete the lifting process.

[0044] This application provides a hoisting fixture 100. A boom 20 and a clamping arm 30 are mounted on a base 10. The boom 20 connects to equipment within the wind turbine generator set, and the clamping arm 30 clamps the outer wall of the tower 200 within the wind turbine generator set, providing a stable anchor point for the hoisting fixture 100. The boom 20 can then be used to hoist large components from the nacelle, facilitating the replacement of these components. The hoisting fixture 100 in this embodiment features a simple and flexible structure, making it easy for workers to hoist large components. It saves time and effort, offers greater operational convenience, improves overall hoisting efficiency, and reduces costs during the hoisting process.

[0045] As an optional embodiment, please refer to Figure 1 and combined Figure 3 The boom 20 includes a base 21 and a first body member 22. The base 21 is movably connected to the interface 11 and has a rotational degree of freedom relative to the base 10. The first body member 22 extends in the height direction and is movably connected to the base 21 at one end and configured as a connecting device at the other end. The first body member 22 has a swinging degree of freedom relative to the base 21.

[0046] Optionally, the boom 20 in this embodiment includes two parts: a base 21 and a first body component 22. The boom 20 is connected to the interface 11 at the base 10 through the base 21 and has rotational freedom. The first body component 22 can be an arc-shaped structure with a certain height for connecting with the equipment to be hoisted.

[0047] Optionally, in this embodiment, the first body component 22 is mainly configured to be movable relative to the base 21. That is, the first body component 22 has a swing freedom on the base 21, so that the pitch angle of the boom 20 can be adjusted by adjusting the angle of the first body component 22 relative to the base 21 to adapt to the hoisting conditions of different equipment.

[0048] This application provides a hoisting fixture 100. By setting the boom 20 as a connection structure between the first body component 22 and the base 21, the swing adjustment of the first body component 22 is realized by utilizing the swing freedom of the first body component 22 relative to the base 21. Thus, multiple angles and positional relationships can be formed between the two, which can better adapt to the hoisting of different equipment, meet the hoisting needs of equipment of different sizes, and have better hoisting adaptability and adjustment flexibility.

[0049] As an optional embodiment, please refer to Figure 1 and Figure 2 The boom 20 also includes a drive assembly 40, which includes a first drive member 41. The first drive member 41 has telescopicity in a first direction and is connected between the base 21 and the first body member 22. One end of the first drive member 41 is connected to the base 21 and the other end can drive the first body member 22 to swing relative to the base 21 in a first direction. The first direction intersects with the height direction.

[0050] In this embodiment, a drive assembly 40 is further provided in the boom 20. Specifically, the first drive member 41 in the drive assembly 40 is connected between the base 21 and the first body member 22. The first drive member 41 has telescopicity in a first direction. Optionally, the first direction can be the extension direction of the first drive member 41 itself. The first drive member 41 can be a rod-shaped structure, such as a telescopic cylinder, etc. This application does not limit this.

[0051] When the drive assembly 40 is working, the first drive member 41 therein can extend and retract in the first direction, thereby driving the first body member 22 to swing relative to the base 21 in the first direction, so that the first body member 22 can adapt to the hoisting position of different equipment and facilitate the connection of the equipment using wire rope.

[0052] This application provides a hoisting fixture 100. By setting a drive assembly 40 in the boom 20, the first drive component 41 therein drives the first body component 22 to swing on the base 21, so that it can complete the pitch adjustment relative to the base 21, which meets the hoisting position requirements of more equipment, and thus has better hoisting adaptability and adjustment flexibility.

[0053] As an optional embodiment, please refer to Figure 2 The drive assembly 40 includes a first adapter 42 and a second adapter 43. The first adapter 42 and the second adapter 43 are movably connected and their opposite ends are respectively connected to the first body 22. One end of the first adapter 42 is movably connected to the connection position between the first body 22 and the base 21. The first adapter 42 is connected to the first drive member 41. The first drive member 41 can drive the first adapter 42, the second adapter 43 and the first body 22 to swing relative to the base 21 in a first direction.

[0054] Optionally, in this embodiment, a first adapter 42 and a second adapter 43 are further provided in the drive component 40. The first adapter 42 and the second adapter 43 can be rod-shaped structures, wherein the first adapter 42 and the second adapter 43 form an active connection and together with the first body component 22 form a triangular structure.

[0055] Optionally, the first adapter 42 and the second adapter 43 are also movably connected to the first body component 22 to facilitate subsequent adjustment of the overall structure. The first adapter 42 and the second adapter 43 can provide certain support for the first body component 22, so that the first body component 22 has better stability when hoisting equipment.

[0056] Since the first driving member 41 is connected to the first adapter 42, when the first driving member 41 drives the first body member 22 to swing relative to the base 21, the first driving member 41 first extends and retracts, causing the first adapter 42 and the second adapter 43 to swing relative to the base 21, which in turn causes the connected first body member 22 to swing relative to the base 21, forming a degree of freedom of swing relative to the base 21, thus completing the pitch adjustment of the entire boom 20. Optionally, the first driving member 41 can drive the first adapter 42 to rotate, or it can be used to adjust the slight pitch of the first body member 22.

[0057] This application provides a hoisting fixture 100. By setting a first adapter 42 and a second adapter 43 in the drive assembly 40 to connect with the first body component 22, the first drive component 41 drives the whole to complete the swing adjustment, and the first adapter 42 and the second adapter 43 can also form a stable support for the first body component 22, thereby improving the overall stability and reliability of the boom 20 structure.

[0058] As an optional embodiment, please refer to Figure 2 The second adapter 43 extends in the height direction and has telescoping properties in the height direction. The second adapter 43 can drive the first body 22 to swing relative to the base 21 in the height direction.

[0059] Optionally, the second adapter 43 can be a telescopic hydraulic cylinder structure. In this embodiment, the second adapter 43 is configured to have telescopic performance in the height direction. Based on the first driving member 41 driving the first body member 22 to swing back and forth, the second adapter 43 can also adjust the movement of the first body member 22.

[0060] When the second adapter 43 extends or retracts in the height direction, it can drive the first body component 22 connected to it to swing relative to the base 21 in the height direction, further improving the freedom of movement of the first body component 22 and completing the overall position adjustment of the boom 20 to meet the hoisting position requirements of different equipment.

[0061] The second adapter 43 can control the angle between the first body 22 and the first adapter 42 when it is extended or retracted. It can cooperate with the first drive 41 to drive the first body 22 to complete a 180-degree rotation, and can also adjust the pitch angle of the first body 22.

[0062] This application provides a hoisting fixture 100. By setting the second adapter 43 to have telescopicity in the height direction, the second adapter 43 can further drive the first body 22 to swing and adjust relative to the base 21, which further improves the degree of freedom of movement of the first body 22 relative to the base 21, has better structural adjustment flexibility, and can be better adapted to different working conditions.

[0063] As an optional embodiment, please refer to Figure 3 A bearing 50 is provided at the interface 11. The bearing 50 includes a fixed ring 51 and a rotating ring 52 that are rotatably fitted together and interlocked. The fixed ring 51 is connected to the base 10 and the rotating ring 52 is connected to one end of the boom 20.

[0064] To achieve rotational freedom of the boom 20 relative to the base 21, a bearing 50 is provided at the interface 11 in this embodiment. Specifically, the bearing 50 is connected to the base 10 through the fixed ring 51 and to the boom 20 through the rotating ring 52. When it is necessary to rotate and adjust the boom 20, the rotation of the boom 20 is achieved by rotating the rotating ring 52 relative to the fixed ring 51. Optionally, the bearing 50 can be a sliding bearing 50. Specifically, the rotation of the rotating ring 52 can be driven by a hydraulic motor. This application does not make any special limitation on the specific type of bearing 50.

[0065] This application provides a hoisting fixture 100. By setting a bearing 50 at the interface 11, the structure is simple and lightweight. The rotating ring 52 of the bearing 50 is connected to the boom 20, realizing the rotation of the boom 20 relative to the base 10, improving the rotation adjustment capability of the boom 20, and facilitating the transfer of equipment.

[0066] As an optional embodiment, please refer to Figure 3 The arm 30 includes a second body component 31 and a snap-fit ​​component 32. The second body component 31 is movably connected to the base 10 and has a swing freedom relative to the base 10. The second body components 31 on both sides of the base 10 enclose a fixed cavity. The snap-fit ​​component 32 is disposed on the side of the second body component 31 near the fixed cavity. The snap-fit ​​component 32 has a snap-fit ​​groove 33. The snap-fit ​​component 32 is configured to extend in a direction that matches the flange profile on the tower 200 and snap onto the outer wall of the flange so that the snap-fit ​​groove 33 can accommodate the flange.

[0067] In this embodiment, the hoisting fixture 100 is specifically connected to the tower 200 of the wind turbine generator through the clamp 30. The clamp 30 is used to clamp the outer wall of the tower 200, so that the hoisting fixture 100 is fixed at the position of the outer wall of the tower 200, providing a stable fixed point for the hoisting fixture 100 and providing a stable foundation for the subsequent hoisting of the boom 20.

[0068] Optionally, the specific structure of the boom 30 consists of a second body component 31 and a snap-fit ​​component 32. In order to adapt to the contour of the outer wall of the tower 200 and form a tight and reliable contact, the second body component 31 can be set as an arc-shaped structure, thereby matching the contour of the outer wall of the tower 200, so that the two form a tighter grip and improve the stability of the hoisting fixture 100 as a whole at the position of the tower 200.

[0069] Meanwhile, in this embodiment, a snap-fit ​​member 32 is further provided at the second body component 31. The snap-fit ​​member 32 has a snap-fit ​​groove 33. The main function of the snap-fit ​​member 32 is to snap-fit ​​with the flange at the top of the tower 200. Specifically, the snap-fit ​​groove 33 at the snap-fit ​​member 32 is used to accommodate the flange. Therefore, the snap-fit ​​groove 33 can be set as an arc groove, so that the clamp 30 can be further fixed at the flange position at the top of the tower 200, thereby improving the snap-fit ​​force between the two.

[0070] Optionally, this application does not impose special limitations on the specific structure of the snap-fit ​​component 32 and the actual size of the snap-fit ​​groove 33, as long as it can match the outer contour of the flange at the top of the tower 200, to ensure that the snap-fit ​​groove 33 can accommodate the flange and achieve stable snap-fit ​​of the arm 30 to the outer wall of the tower 200.

[0071] This application provides a hoisting fixture 100. By setting the boom 30 as a second body component 31 and a snap-fit ​​component 32, the snap-fit ​​component 32 can form a more stable snap-fit ​​on the outer wall of the tower 200, which further improves the stability of the connection between the two and provides a stable foundation for the subsequent hoisting of the equipment by the boom 20, reducing the risk of the hoisting fixture 100 falling off as a whole.

[0072] As an optional embodiment, please refer to Figure 4 The snap-fit ​​component 32 includes a first snap-fit ​​portion 32a and a second snap-fit ​​portion 32b that are connected to each other. Each of the first snap-fit ​​portion 32a and the second snap-fit ​​portion 32b has a limiting protrusion 32c at one end in the height direction and at the other end facing away from each other. A snap-fit ​​groove 33 is formed between the two limiting protrusions 32c.

[0073] Optionally, the first snap-fit ​​part 32a and the second snap-fit ​​part 32b can be block structures, with limiting protrusions 32c provided at their ends, and a snap-fit ​​groove 33 defined between the limiting protrusions 32c for snap-fitting the flange at the top of the tower 200.

[0074] It is understood that the distance between the limiting protrusions 32c on the first and second transition parts and the shape of the limiting protrusions 32c determine the specific size of the snap-fit ​​groove 33. The relative position of the limiting protrusions 32c can be determined according to the actual size of the flange to be snapped. This application does not limit this.

[0075] When the flange is snapped together using the snap-fit ​​part 32, the first snap-fit ​​part 32a and the second snap-fit ​​part 32b abut against the outer wall of the flange together. The limiting protrusion 32c restricts the movement of the flange in the height direction, reducing the risk of misalignment or movement between the two, thus forming a more stable snap-fit.

[0076] This application provides a hoisting fixture 100. By setting the snap-fit ​​member 32 as a first snap-fit ​​part 32a and a second snap-fit ​​part 32b, and using the limiting protrusion 32c in both to limit the snap-fit ​​flange, a feasible structural form for the snap-fit ​​member 32 is provided, which reduces the risk of the boom 30 and the tower 200 moving and falling off, and further improves the stability of the snap-fit ​​between the hoisting fixture 100 and the tower 200.

[0077] As an optional embodiment, please refer to Figure 4 The snap-fit ​​component 32 also includes a pin 34. The first snap-fit ​​part 32a and the second snap-fit ​​part 32b are movably connected to both sides of the pin 34 in the height direction. The first snap-fit ​​part 32a and the second snap-fit ​​part 32b respectively have a swinging degree of freedom relative to the pin 34.

[0078] Optionally, the locking member 32 may be further provided with a pin 34 located between the first locking part 32a and the second locking part 32b. Under the action of the intermediate pin 34, the first locking part 32a and the second locking part 32b have a certain degree of freedom of movement. Specifically, the first locking part 32a and the second locking part 32b can swing relative to the pin 34, thereby facilitating the position adjustment of the first locking part 32a and the second locking part 32b.

[0079] When the flange is snapped together using the snap-fit ​​part 32, the first snap-fit ​​part 32a and the second snap-fit ​​part 32b can not only abut against the outer wall of the flange, but also have a certain degree of mobility, so as to adapt to different flange sizes and make it more flexible to abut against various flange models.

[0080] This application provides a hoisting fixture 100. By setting a pin 34 in the snap-fit ​​member 32 to connect between the first snap-fit ​​part 32a and the second snap-fit ​​part 32b, the first snap-fit ​​part 32a and the second snap-fit ​​part 32b have a certain degree of freedom of movement, which facilitates the adjustment of the position of the snap-fit ​​member 32 relative to the flange surface, so that it can more fully abut against the outer wall of the flange. Thus, the snap-fit ​​member 32 forms a more stable snap-fit ​​with the flange, which improves the snap-fit ​​stability of the hoisting fixture 100 on the tower 200 and reduces the risk of structural detachment during the hoisting of equipment.

[0081] As an optional embodiment, please refer to Figure 3 The arm 30 includes multiple snap-fit ​​members 32, which are arranged at intervals on the side of the second body 31 near the fixing cavity.

[0082] Optionally, as shown in the figure, in this embodiment, multiple snap-fit ​​pieces 32 can be provided in the arm 30. Specifically, they are arranged on the inner side of the second body 31 and along the circumferential direction. This application does not make any special limitation on the specific number and positional relationship of the snap-fit ​​pieces 32 on the second body 31. When snapping the flange at the top of the tower cylinder 200, it is sufficient to ensure that each snap-fit ​​piece 32 can abut against the outer wall of the flange.

[0083] This application provides a hoisting fixture 100. By setting multiple snap-fit ​​pieces 32 on the second body 31 of the boom 30, the multiple snap-fit ​​pieces 32 can simultaneously snap-fit ​​the flange on the tower 200, thereby further improving the clamping ability of the boom 30 on the outer wall of the tower 200 and improving the stability of the hoisting fixture 100 on the tower 200.

[0084] As an optional embodiment, please refer to Figure 3 The arm 30 includes a second body 31 and a first telescopic member 35. The first telescopic member 35 has telescopicity in the horizontal direction and is connected between the second body 31 and the base 10.

[0085] In order to achieve the swing freedom of the arm 30 relative to the base 10, a first telescopic member 35 is provided between the second body part 31 of the arm 30 and the base 10 in this embodiment. Optionally, the first telescopic member 35 can be a hydraulic cylinder structure. The first telescopic member 35 has a certain telescopic capacity, and the telescopic performance of the first telescopic member 35 is used to drive the swing of the second body part 31.

[0086] Before the clamping arm 30 grips the outer wall of the tower 200, the first telescopic member 35 expands the second body member 31 relative to the base 10, thereby increasing the space of the fixing cavity. Then, the clamping arm 30 is brought close to the flange on the outer wall of the tower 200, and the first telescopic member 35 is used again to retract the second body member 31 relative to the base 10, so that the second body member 31 gradually retracts and approaches the outer wall of the tower 200 and forms an enclosure until it abuts against the outer wall of the flange of the tower 200, thus completing the clamping process of the clamping arm 30 on the tower 200.

[0087] This application provides a hoisting fixture 100. By setting the boom 30 as a second body component 31 and a first telescopic component 35, a way is provided for the boom 30 to have swing freedom. The telescopic performance of the first telescopic component 35 is used to adjust the swing of the second body component 31 relative to the base 10, thereby realizing the clamping and releasing of the tower 200. It has more convenient adjustment performance, making it easier for workers to adjust the boom 30 and meeting the clamping requirements of the boom 30 on the tower 200.

[0088] As an optional embodiment, please refer to Figure 3The arm 30 includes a second telescopic member 36, which has telescopic properties in the horizontal direction. The second body 31 includes a plurality of movable sub-arm portions 31a, which extend in the horizontal direction and are connected one after another. The second telescopic member 36 is connected between two adjacent sub-arm portions 31a.

[0089] Optionally, the second body component 31 in this embodiment can be further divided into multiple interconnected sub-arm portions 31a, as shown in the figure. In this embodiment, the second body component 31 can be set as two sub-arm portions 31a, with a degree of freedom of movement between the two sub-arm portions 31a, thereby facilitating further adjustment of the clamping arm 30 and meeting the clamping requirements of the flange. This application does not impose a special limitation on the specific number of sub-arm portions 31a in the second body component 31, which can be determined according to the actual flange size.

[0090] The adjacent sub-arm sections 31a are connected by a second telescopic member 36. Optionally, the second telescopic member 36 can be a hydraulic cylinder structure, so that the second telescopic member 36 itself has a certain telescopic performance, thereby driving the sub-arm section 31a connected to it to swing accordingly, so that the arm 30 can be more firmly held at the flange position of the tower 200.

[0091] This application provides a hoisting fixture 100. By setting the second body 31 of the boom 30 in the form of multiple sub-booms 31a connected by a second telescopic member 36, the extension and retraction of the second telescopic member 36 enables the multiple sub-booms 31a to have better swinging ability, thereby further improving the adjustment capability of the boom 30, making it more flexible, better adapting to the clamping requirements of flanges of different sizes, and meeting more hoisting conditions.

[0092] As an optional embodiment, please refer to Figure 3 and combined Figure 5 The hoisting fixture 100 also includes a support beam 60, on which a fixed pulley 61 is provided, and the support beam 60 is detachably connected to the base 10.

[0093] In this embodiment, a support beam 60 is provided in the hoisting fixture 100, and a fixed pulley 61 is provided on the support beam 60. Optionally, the support beam 60 can be detachably connected to the base 10. The support beam 60 has two main functions, as described below: First, the hoisting fixture 100 in this embodiment needs to be hoisted to the top of the tower 200 as a whole, in preparation for the subsequent clamping arm 30 to clamp the tower 200. During the hoisting process of the hoisting fixture 100, the support beam 60 needs to be disassembled and installed in the nacelle. Considering that there is no pulley structure in the nacelle, the purpose of setting the support beam 60 is to use the fixed pulley 61 to provide the winding point for the wire rope. Under the reversing action of the fixed pulley 61 in the nacelle, the entire fixture can be hoisted from the bottom of the tower 200 to the top of the tower 200 using the wire rope, and the subsequent clamping arm 30 to clamp the flange of the tower 200 can be completed.

[0094] Second, after the tooling is installed at the flange position on the top of the tower 200, the support beam 60 is transferred from the nacelle to the base 10 of the hoisting tooling 100. At this time, the wire rope passes around the fixed pulley 61 on the support beam 60 and is connected to the large component equipment in the nacelle through the pulley on the boom 20. The fixed pulley 61 also plays the role of reversing the wire rope and provides a stable fixed point for the wire rope. Then, the large component equipment can be lifted using the wire rope.

[0095] This application provides a hoisting fixture 100. By setting a support beam 60 in the hoisting fixture 100 and setting a fixed pulley 61 on the support beam 60, the mobility of the support beam 60 gives it a dual function: it facilitates the provision of a reversing point for the hoisting of the entire fixture and facilitates the subsequent hoisting of large components and equipment, thus providing convenience and stability for the use of the overall fixture.

[0096] As an optional embodiment, please refer to Figure 3 and combined Figure 5 The base 10 is provided with a positioning pin 12, and the support beam 60 is provided with a positioning hole 62 that is aligned and matched with the positioning pin 12, and the positioning pin 12 can be inserted into the positioning hole 62.

[0097] Optionally, in this embodiment, the detachable connection of the support beam 60 to the base 10 is achieved by inserting the positioning hole 62 on the support beam 60 into the positioning pin 12 on the base 10. This application does not impose any special limitation on the specific method of detachable connection between the support beam 60 and the base 10, as long as the detachable connection between the two can be satisfied.

[0098] This application provides a hoisting fixture 100, which, by using the insertion of positioning pins 12 and positioning holes 62, not only achieves a detachable connection between the support beam 60 and the base 10, but also has a simple and convenient structure, making it easy for workers to install and move the support beam 60, thus improving the convenience of the hoisting process.

[0099] As an optional embodiment, please refer to Figure 3 A movable pulley 13 is provided on the base 10.

[0100] Optionally, in this embodiment, a movable pulley 13 is provided on the base 10. This is mainly to provide an attachment point for the wire rope to the base 10 during the overall lifting of the hoisting fixture 100. That is, the wire rope is first wound around the fixed pulley 61 and then wound around to the position of the movable pulley 13 on the base 10 to achieve the overall connection between the wire rope and the hoisting fixture 100. This makes it easier to lift the hoisting fixture 100. Under the action of the movable pulley 13, the lifting process is more labor-saving.

[0101] This application provides a hoisting fixture 100. By setting a movable pulley 13 on the base 10, not only is a connection point provided between the wire rope and the hoisting fixture 100 as a whole, but the force can also be reduced during the hoisting process, thereby completing the hoisting of the fixture as a whole with less effort and reducing the difficulty of hoisting the fixture.

[0102] As an optional embodiment, please refer to Figure 1 and combined Figure 6 The boom 20 is provided with a fastener 23, which protrudes from the boom 20 and has a fixing groove 24 configured to engage the lifting rope.

[0103] Optionally, in this embodiment, a fixing member 23 is further provided on the boom 20. The fixing member 23 has a fixing groove 24. The main function of the fixing member 23 is to improve the stability of the hoisting fixture 100 when it is lifted as a whole. It is necessary to flip the boom 20 and make it contact the wire rope. The fixing groove 24 at the fixing member 23 is engaged with the wire rope to ensure that the fixture is laid flat on the wire rope for lifting.

[0104] This application provides a hoisting fixture 100. By setting a fixing member 23 on the boom 20 and using the fixing groove 24 on the fixing member 23 to engage with the wire rope, the stability of the fixture as a whole during hoisting is improved, allowing it to rise more smoothly to the top position of the tower 200, thus providing better safety performance.

[0105] For the hoisting fixture 100 provided in this embodiment, the specific operation process is as follows: First, the auxiliary crane needs to be lifted from the rear hoisting port of the nacelle into the nacelle. It is then manually transferred to the front end of the rear base frame of the nacelle for assembly. After assembly, power is drawn from inside the nacelle. The hook of the auxiliary crane is lowered to the bottom of the tower 200. The wire rope is installed on the support beam 60 in the hoisting tool 100. The auxiliary crane is then used to lift the support beam 60 into the rear base frame inside the nacelle and connect it to the rear base frame inside the nacelle using its own positioning hole 62. The support beam 60 is then tightened securely without any shaking.

[0106] The small outrigger boat is brought close to the tower pile 200, and the outriggers are lowered to position the platform. The winch is fixed to the platform, and the wire rope is lifted and its end is fixed to the lifting fixture 100. Specifically, the wire rope is passed around the fixed pulley 61 on the support beam 60, reversed, and then passed around the movable pulley 13 on the base 10. The end of the wire rope is then fixed to the boom 20. The auxiliary crane and the winch are raised simultaneously to lift the lifting fixture 100 to a certain height. The auxiliary crane slowly releases the hook, allowing the fixing part 23 on the boom 20 to engage with the wire rope through the fixing groove 24. The lifting fixture 100 lies flat on the wire rope, and the lifting fixture 100 continues to be slowly lifted.

[0107] When the hoisting fixture 100 is raised to the top of the tower, it is controlled by a cable-stayed winch and hoisting hoist. Note that when the hoisting fixture 100 is raised to its final position, the cable-stayed winch must be used to control its posture to prevent collisions with the tower 200 or the main unit. Then, the electrical control cabinet on the hoisting fixture 100 is connected to the main unit's power supply, drawing power from inside the cabin. Personnel use a remote control to control the first telescopic component 35 and the second telescopic component 36 at the boom 30, causing the boom 30 to slowly clamp onto the tower 200, ensuring that the locking groove 33 on the locking component 32 fully engages with the flange of the tower 200. Figure 7 As shown, after the arm 30 is fully attached to the tower 200, the locking device on the end face of the arm 30 is closed by remote control to prevent it from falling when the power is cut off. The first telescopic component 35 and the second telescopic component 36 are kept in a pressure-holding state by remote control.

[0108] The winch is used to release tension and prevent excessive internal force on the wire rope. The auxiliary crane is restarted to remove the support beam 60 and lower it to the base 10 of the hoisting fixture 100. The support beam 60 is then inserted through its positioning hole 62 into the positioning pin 12 on the base 10, and the nut of the positioning pin 12 is tightened to complete the repositioning of the support beam 60. The winch is then operated to slowly wind up the rope to prevent it from slipping off the pulley due to excessive slack. After ensuring that the above steps have been completed, the hoisting fixture 100 can be firmly fixed to the tower 200. Sufficient length is reserved for the power cable of the hoisting fixture 100 to prevent it from being torn off during subsequent yaw.

[0109] Subsequently, the first drive component 41 and the second adapter component 43 are controlled by remote control to make the first body component 22 of the boom 20 complete a 180-degree rotation. During the rotation, the load of the wire rope is adjusted by the winch to prevent the wire rope from breaking due to overload or slipping off the pulley due to excessive slack. Then, the hook is lowered. After the personnel remove the connecting bolts of the nacelle cover, the sling is connected to the hook of the lifting tool 100. The lifting tool 100 lifts the nacelle cover and lowers it to the platform under the tower. The bolts connecting the gearbox or transformer and generator inside the nacelle to the main unit are removed. The hook is then connected to the above-mentioned large components. The rotating ring 52 of the remote-controlled bearing 50 is rotated to drive the rotation of the boom 20. The first drive component 41 of the remote-controlled boom 20 controls the pitch of the boom 20.

[0110] The above-mentioned large components are lifted to the outside of the nacelle cover. The boom 20 of the remote-controlled hoisting tool 100 is rotated to remove the large components from the main engine nacelle cover. The large components are then slowly lowered to the tower base platform, completing the hoisting of the above-mentioned large components. After completing the task, the boom 20 is controlled to rotate 180 degrees and form a horizontal engagement with the wire rope. The hoisting tool 100 is then lowered using a winch and wire rope. Before lowering, the power cables of the hoisting tool 100 inside the nacelle are removed. During the lowering process, the working platform controls the attitude of the hoisting tool 100 through cable wind control. Finally, the support beam 60 is removed and the tool is lowered to the tower base platform using an auxiliary crane.

[0111] This application provides a hoisting fixture. By installing a boom and a clamping arm on a base, the boom connects to the equipment in the wind turbine generator set, and the clamping arm grips the outer wall of the wind turbine generator set's tower, providing a stable anchor point for the hoisting fixture. The boom can then lift large components from the nacelle, facilitating the replacement of these components. This hoisting fixture features a simple and flexible structure, making it easy for workers to lift large components, saving time and effort, improving operational convenience, increasing overall hoisting efficiency, and reducing costs during the hoisting process.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A hoisting tool, characterized in that, Used in wind turbine generator sets, the lifting fixture is configured to be connected to the tower of the wind turbine generator set and to lift equipment within the wind turbine generator set, the lifting fixture comprising: The base has an interface; A boom having a predetermined height, one end of the boom being movably connected to the docking interface in its own height direction and having rotational freedom relative to the base, the other end of the boom being configured to connect to the equipment, and the boom extending in the height direction along a side away from the base; The clamping arms are connected in pairs to both sides of the base in the horizontal direction. The clamping arms are movably connected to the base and have a swinging degree of freedom relative to the base. The paired clamping arms extend in the horizontal direction and enclose the base to form a fixed cavity. The clamping arms are configured to extend in a direction that matches the contour of the tower and clamp onto the outer wall of the tower so that the fixed cavity can accommodate the tower.

2. The hoisting fixture according to claim 1, characterized in that, The boom includes a base and a first body component. The base is movably connected to the interface and has a rotational degree of freedom relative to the base. The first body component extends in the height direction and is movably connected at one end to the base and at the other end to the device. The first body component has a swinging degree of freedom relative to the base.

3. The hoisting fixture according to claim 2, characterized in that, The boom further includes a drive assembly, which includes a first drive member. The first drive member has telescopicity in a first direction and is connected between the base and the first body member. One end of the first drive member is connected to the base and the other end is capable of driving the first body member to swing relative to the base in the first direction. The first direction intersects the height direction.

4. The hoisting fixture according to claim 3, characterized in that, The drive assembly includes a first adapter and a second adapter. The first adapter and the second adapter are movably connected, and their opposite ends are respectively connected to the first body component. One end of the first adapter is movably connected to the connection position between the first body component and the base. The first adapter is connected to the first drive component, and the first drive component can drive the first adapter, the second adapter, and the first body component to swing relative to the base in the first direction.

5. The hoisting fixture according to claim 4, characterized in that, The second adapter extends in the height direction and has telescoping properties in the height direction, and the second adapter is capable of causing the first body to swing relative to the base in the height direction.

6. The hoisting fixture according to claim 1, characterized in that, A bearing is provided at the interface, the bearing including a fixed ring and a rotating ring that are rotatably fitted together and interlocked, the fixed ring being connected to the base and the rotating ring being connected to one end of the boom.

7. The hoisting fixture according to claim 1, characterized in that, The arm includes a second body component and a snap-fit ​​component. The second body component is movably connected to the base and has a swing degree of freedom relative to the base. The second body components on both sides of the base enclose the fixing cavity. The snap-fit ​​component is disposed on the side of the second body component near the fixing cavity. The snap-fit ​​component has a snap-fit ​​groove. The snap-fit ​​component is configured to extend in a direction that matches the profile of the flange on the tower and clamp onto the outer wall of the flange so that the snap-fit ​​groove accommodates the flange.

8. The hoisting fixture according to claim 7, characterized in that, The snap-fit ​​component includes a first snap-fit ​​portion and a second snap-fit ​​portion that are connected to each other. The first snap-fit ​​portion and the second snap-fit ​​portion each have a limiting protrusion at one end in the height direction and at the other end facing away from each other. The snap-fit ​​groove is formed between the two limiting protrusions.

9. The hoisting fixture according to claim 8, characterized in that, The locking component further includes a pin, and the first locking portion and the second locking portion are movably connected to both sides of the pin in the height direction. The first locking portion and the second locking portion each have a degree of freedom of swing relative to the pin.

10. The hoisting fixture according to claim 7, characterized in that, The arm includes a plurality of snap-fit ​​components, which are arranged at intervals on the side of the second body near the fixing cavity.

11. The hoisting fixture according to claim 1, characterized in that, The arm includes a second body component and a first telescopic component, the first telescopic component having telescopic flexibility in the horizontal direction, and the first telescopic component being connected between the second body component and the base.

12. The hoisting fixture according to claim 11, characterized in that, The arm includes a second telescopic member, which has telescopic flexibility in the horizontal direction. The second body includes a plurality of movable sub-arm portions, which extend in the horizontal direction and are connected sequentially. The second telescopic member is connected between two adjacent sub-arm portions.

13. The hoisting fixture according to claim 1, characterized in that, The hoisting fixture also includes a support beam, on which a fixed pulley is provided, and the support beam is detachably connected to the base.

14. The hoisting fixture according to claim 13, characterized in that, The base is provided with a positioning pin, and the support beam is provided with a positioning hole that is aligned and matched with the positioning pin, and the positioning pin can be inserted into the positioning hole.

15. The hoisting fixture according to claim 1, characterized in that, The base is equipped with a movable pulley.

16. The hoisting fixture according to claim 1, characterized in that, The boom is provided with a fixing member that protrudes from the boom and has a fixing groove configured to engage the lifting rope.

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