Lifting appliance for wind power cabin

Abstract

The utility model discloses a lifting appliance for a wind power cabin, and relates to the technical field of equipment production and assembly, the lifting appliance for the wind power cabin comprises two side beams, a plurality of lower lifting rings, a plurality of upper lifting rings and a balancing weight, the two side beams are in mirror symmetry and are detachably connected, the plurality of lower lifting rings are respectively arranged on the lower surfaces of the two side beams, and the balancing weight is arranged on the lower surfaces of the two side beams. The multiple upper lifting rings are installed on the upper surfaces of the two side beams respectively, the balancing weights are detachably installed on the side beams, the inclination angle of the lifting appliance is adjusted by adjusting the number of the balancing weights, the difficulty of assembling a wind power cabin is reduced, meanwhile, the balancing weights are detachably installed and can also be detached during transportation and carrying, and the lifting appliance is convenient to use. And the transportation cost and difficulty are reduced due to split transportation and carrying.

Description

Technical Field

[0001] This utility model relates to the field of equipment manufacturing and assembly technology, and more specifically, to a lifting tool for wind turbine nacelles. Background Technology

[0002] The nacelle is the core component of a wind turbine generator set, primarily responsible for converting wind energy captured by the rotor into electrical energy, and controlling and regulating it through related equipment. Due to the large size and weight of the nacelle, lifting equipment is required during production and assembly. Currently, the wind power industry widely uses three types of lifting equipment for nacelle installation: the first is a welded frame beam type lifting equipment, the second is a welded I-beam type lifting equipment, and the third is a combined assembled I-beam type lifting equipment. However, all three types of lifting equipment currently have some problems in their use:

[0003] Welded frame beam type lifting slings have a non-detachable lifting body, limited lifting points, and non-adjustable center of gravity position. They cannot be used for lifting different types of engine rooms, resulting in poor versatility. Furthermore, when using lifting slings with engine room center of gravity arrangement to lift the lifting body, the lifting slings will tilt to varying degrees, making it difficult to operate the shackle slings inside the engine room.

[0004] Welded I-beam lifting fixtures suffer from the same problems as welded frame beam lifting fixtures, and are also more expensive.

[0005] The modular I-beam lifting device has a complex structure, resulting in a large amount of preparation work before its use. Compared with the previous two types of lifting devices, it has the heaviest lifting device and the highest cost. It also has the highest requirements for the crane, resulting in higher operating costs.

[0006] Therefore, the current naval spreader has the problems of not being able to be quickly disassembled and installed, having fixed lifting points and an unadjustable center of gravity, as well as high manufacturing and usage costs.

[0007] In summary, how to provide a lifting device that is easy to disassemble and allows for quick adjustment of its center of gravity is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a wind turbine nacelle lifting tool, which adopts a split structure to reduce transportation difficulty and cost, and adopts a counterweight module structure to reduce the tilt angle of the lifting tool caused by the large deviation between the center of gravity of the lifting tool and the center of gravity of the nacelle, thereby improving the assembly efficiency of the wind turbine nacelle.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A wind turbine nacelle lifting device, comprising:

[0011] Two side beams, which are mirror-symmetrical and detachably connected;

[0012] A plurality of lower lifting rings are respectively installed on the lower surfaces of the two side beams;

[0013] A plurality of upper lifting rings are respectively installed on the upper surfaces of the two side beams;

[0014] A counterweight block, which is detachably installed on the side beam.

[0015] Furthermore, when the two side beams are connected, they form a ring structure. A number of lower lifting rings and a number of upper lifting rings are evenly distributed on the two side beams. A connecting plate is provided at the connection point of the two side beams, and the connecting plate is provided with a number of through holes for bolt connection.

[0016] Furthermore, this utility model also includes:

[0017] A plurality of adjusting components are installed on the side beam. The number and position of the plurality of adjusting components correspond one-to-one with the plurality of upper lifting rings. The position of the upper lifting ring can be adjusted in the length direction by the adjusting component corresponding to it.

[0018] Furthermore, in this invention, the adjusting member is a plate-shaped structure, and the length direction of several adjusting members is inclined toward the center of gravity of the two side beams as a whole.

[0019] Furthermore, the adjusting member is provided with a plurality of adjusting holes, which are evenly distributed along the length of the adjusting member, and the upper hanging ring passes through the adjusting holes and is connected to the adjusting member.

[0020] Furthermore, in this invention, the counterweight has a U-shaped structure.

[0021] Furthermore, the counterweight is provided with a locking element for fixing the counterweight to the side beam.

[0022] Furthermore, the counterweight is provided with a through threaded hole, and the locking member is a long bolt, which is threadedly installed in the threaded hole.

[0023] Furthermore, the counterweight is provided with a lifting ring hole.

[0024] The wind turbine nacelle lifting tool provided by this utility model assembles two side beams into a whole during use. When handling or transportation is required, the two side beams can be disassembled and installed separately, making transportation and handling more convenient. Lower lifting rings are installed on the lower surfaces of the two side beams, and several upper lifting rings are installed on the upper surfaces of the two side beams. The wind turbine nacelle is lifted by using the upper and lower lifting rings. The tilt angle of the lifting tool can be adjusted by using counterweights that are detachably installed on the side beams and adjusting the number of counterweights. This reduces the tilt angle of the lifting tool caused by large deviations between the center of gravity of the lifting tool and the center of gravity of the nacelle, improves the ease of operation, and reduces the difficulty of assembling the wind turbine nacelle. At the same time, the detachable installation of the counterweights also allows them to be removed during transportation and handling, reducing transportation costs and difficulties. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall axial side structure of the lifting device provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the overall lifting device provided by this utility model from a bottom-view axial side.

[0028] Figure 3 This is a top view of the overall structure of the lifting device provided by this utility model;

[0029] Figure 4 This is a structural schematic diagram of the overall side of the lifting device provided by this utility model;

[0030] Figure 5 This is a schematic diagram of the axial side of the counterweight provided by this utility model.

[0031] Figures 1-5 In the accompanying drawings, the reference numerals include:

[0032] Side beam 1, lower lifting ring 2, upper lifting ring 3, counterweight block 4, adjusting component 5, adjusting hole 6, connecting plate 7, locking component 8, threaded hole 9, lifting ring hole 10. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The core of this utility model is to provide a wind turbine nacelle lifting tool, which adopts a split structure to reduce transportation difficulty and cost, and adopts a counterweight module structure to reduce the tilt angle of the lifting tool caused by the large deviation between the center of gravity of the lifting tool and the center of gravity of the nacelle, thereby improving the assembly efficiency of the wind turbine nacelle.

[0035] Please refer to Figures 1-5 A wind turbine nacelle lifting device includes two side beams 1, a plurality of lower lifting rings 2, a plurality of upper lifting rings 3, and a counterweight 4. The two side beams 1 are mirror-symmetrical and detachably connected. The plurality of lower lifting rings 2 are respectively installed on the lower surface of the two side beams 1, and the plurality of upper lifting rings 3 are respectively installed on the upper surface of the two side beams 1. The counterweight 4 is detachably installed on the side beams 1.

[0036] It should be noted that in this embodiment of the utility model, the lifting ring is a ring structure, and the lower lifting ring can be a fixed ring structure, while the upper lifting ring can be a detachable mechanism. Specifically, the upper lifting ring can be a lifting ring structure with opening and closing functions.

[0037] In addition, in this embodiment of the utility model, the side beams are U-shaped structures, and the two side beams can form a closed rectangular structure, with the lower lifting rings located at the four corners of the closed rectangular structure formed by the two side beams.

[0038] In addition, in this embodiment of the invention, the side beam is made of H-shaped steel, which helps to improve its strength.

[0039] In addition, in this embodiment of the invention, at least one reinforcing rib is provided at the corner of the side beam.

[0040] In addition, in this embodiment of the invention, the side beams may adopt other shapes. For example, two side beams may be combined to form a polygonal structure, and the lifting rings may be located at the corners of the polygonal structure. By increasing the number of lifting points, the load capacity of the lifting device can be enhanced.

[0041] It should be noted that the number of lifting rings in this embodiment can be selected according to the needs of use, and there can be several lifting rings at the same lifting point, which is beneficial to enhance the strength of the lifting ring at a single lifting point.

[0042] In use, the two side beams 1 are assembled into a whole. When handling or transportation is required, the two side beams 1 are disassembled and installed separately. After disassembly, transportation and handling are more convenient. The lower lifting rings 2 are respectively installed on the lower surface of the two side beams 1, and several upper lifting rings 3 are respectively installed on the upper surface of the two side beams 1. The wind turbine nacelle is lifted by using the upper lifting rings 3 and the lower lifting rings 2. The tilt angle of the lifting device can be adjusted by using the counterweights 4 that are detachably installed on the side beams 1 and adjusting the number of counterweights 4. This reduces the tilt angle of the lifting device caused by the large deviation between the center of gravity of the lifting device and the center of gravity of the nacelle, improves the friendliness of operation, and reduces the difficulty of assembling the wind turbine nacelle. At the same time, the counterweights 4 can be detached and removed during transportation and handling, allowing for separate transportation and handling, reducing transportation costs and difficulties.

[0043] It should be noted that the shape and material of the counterweight 4 in this embodiment can be selected according to the usage environment. For example, the counterweight module is made of carbon steel, and lead blocks can be used when the weight needs to be increased.

[0044] Optionally, in some embodiments, the two side beams 1 are connected to form a ring structure. A number of lower lifting rings 2 and a number of upper lifting rings 3 are evenly distributed on the two side beams 1. A connecting plate 7 is provided at the connection point of the two side beams 1. The connecting plate 7 is provided with a number of through holes for bolt connection. That is to say, the ring structure formed by the two side beams 1 can increase the lifting area of ​​the wind turbine nacelle and increase the lifting stability. At the same time, in order to facilitate the disassembly of the side beams 1, a connecting plate 7 is provided at the connection point of the two side beams 1. The connecting plate 7 is provided with a number of through holes for bolt connection. That is to say, the two side beams 1 are fixedly connected by bolts, which can achieve the required strength and facilitate disassembly.

[0045] Optionally, in some embodiments, in order to enhance the connection strength between the connecting plate and the side beam, a number of reinforcing ribs are provided at the connection position between the connecting plate and the side beam, and the ribs are evenly distributed around the circumference of the connecting plate, which is beneficial to enhancing the connection strength.

[0046] Optionally, in some embodiments, the bolts are grade 10.9 bolts, grade 10 nuts, and 300HV washers, and all bolt surfaces are treated with Dacromet.

[0047] Optionally, in some embodiments, a certain tightening torque is applied to the bolts to ensure that the mating surfaces neither separate nor crush.

[0048] In other embodiments, other specific methods can be used for connection, such as connecting the two side beams 1 by plugging them together. Specifically, one of the two side beams 1 is provided with a plug-in hole, and the other is provided with a plug-in rod. Inserting the plug-in rod into the plug-in hole achieves a fixed connection between the two side beams 1.

[0049] Please refer to Figure 1 To enable the lifting point position to be adjusted according to different wind turbine nacelle assembly requirements, some embodiments include several adjusting components 5, all of which are installed on the side beam 1. The number and position of the adjusting components 5 correspond one-to-one with the number of upper lifting rings 3. The position of the upper lifting ring 3 can be adjusted in the length direction by the corresponding adjusting component 5. In other words, the position of the upper lifting ring 3 can be adjusted by adjusting the adjusting component 5. Therefore, the hanging point hole position of the lifting tool ear plate can be determined according to the nacelle lifting parameters, which further improves the lifting stability of the wind turbine nacelle, reduces the requirements for the lifting sling specifications, and increases the number of compatible lifting models.

[0050] Optionally, in some embodiments, the adjusting member 5 is a plate-shaped structure, and the length direction of several adjusting members 5 is inclined towards the center of gravity of the two side beams 1 as a whole. Therefore, when adjusting the lifting point position of the upper lifting ring 3, the uneven force on the lifting body caused by the displacement of the lifting point position can be avoided, thereby improving the stability of the lifting device.

[0051] In other embodiments, the adjusting member may adopt a slide structure. Specifically, the adjusting member is a plate-shaped structure and has at least one slide groove extending along its length. The position of the lifting point of the lifting ring can be adjusted by sliding the lifting ring in the slide groove.

[0052] In the above embodiment, the length direction of the adjusting member 5 is inclined towards the center of gravity of the two side beams 1 as a whole. That is to say, after the two side beams 1 are installed, their center of gravity is located on the extension line of the length direction of the adjusting member 5. Therefore, when adjusting the position of the lifting point, there will be no uneven force.

[0053] For example, when the two side beams 1 are combined into a circular shape, the extension line of the adjusting component 5 along its length is located at the center of the circle.

[0054] When the two side beams 1 are combined into a rectangle, the extension line of the adjusting component 5 along its length is located at its center of gravity.

[0055] Optionally, in some embodiments, the adjusting member 5 is provided with a plurality of adjusting holes 6, which are evenly distributed along the length direction of the adjusting member 5. The upper lifting ring 3 passes through the adjusting holes 6 and is connected to the adjusting member 5. That is to say, the adjusting member 5 is provided with a plurality of adjusting holes 6 arranged along the length direction. When the upper lifting ring 3 is replaced with different adjusting holes 6, the position of the lifting point of the upper lifting ring 3 is adjusted, which is convenient and quick, and more stable after adjustment.

[0056] In other embodiments, the adjustment hole 6 is a strip-shaped hole arranged along the length of the adjustment member 5. Therefore, when the upper lifting ring 3 is adjusted, the position of the lifting point can be adjusted simply by sliding the upper lifting ring 3.

[0057] In the above embodiment, in order to make the lifting ring more stable after sliding, several semi-circular positioning holes are provided above the adjustment hole 6. When the upper lifting ring 3 slides to the required position, it is locked into the positioning hole, which can fix the position of the upper lifting ring 3, which is faster and more convenient.

[0058] Please refer to Figure 1 To facilitate the disassembly and movement of the counterweight 4, in some embodiments, the counterweight 4 is a U-shaped structure. That is, the counterweight 4 with a U-shaped structure has a slot width that is wider than the width of the side beam 1. Therefore, the counterweight 4 can be installed simply by placing it on the side beam 1, which is very convenient.

[0059] In other embodiments, the counterweight may have an arc-shaped structure or other open-shaped structures.

[0060] In the above embodiment, in order to prevent the counterweight 4 from slipping after installation, an anti-slip layer is provided on the contact surface between the counterweight 4 and the side beam 1, such as an anti-slip layer made of rubber or silicone. By increasing the friction between the counterweight 4 and the side beam 1, the position of the counterweight 4 can be prevented from slipping during use.

[0061] In other embodiments, magnets can be installed on the contact surface between the counterweight 4 and the side beam 1. Therefore, when the counterweight 4 comes into contact with the side beam 1, the magnets can fix the counterweight 4 and the side beam 1 relatively firmly.

[0062] In the above embodiments, the counterweight can be rectangular, and the magnets installed on it can more conveniently and firmly install the counterweight onto the side beam.

[0063] In other embodiments, the counterweight 4 is provided with a locking member 8 for fixing the counterweight 4 to the side beam 1. That is, the locking member 8 ensures that the counterweight 4 is fixed to the side beam 1.

[0064] In the above embodiment, the counterweight 4 is provided with a through threaded hole 9, and the locking member 8 is a long bolt, which is threaded into the threaded hole 9. That is to say, when it is necessary to lock the counterweight 4 to the side beam 1, the long bolt is screwed on. After the long bolt contacts the side beam 1, the long bolt is pressed against the side beam 1 to fix the position of the counterweight 4.

[0065] Optionally, in some embodiments, a fixing protrusion is installed at the contact position between the long bolt and the side beam 1, and the fixing protrusion is made of rubber.

[0066] Optionally, in some embodiments, in order to further improve the fixing stability of the counterweight 4, the side beam 1 is provided with several fixing holes, and long bolts are inserted into the fixing holes to achieve full fixing of the counterweight 4.

[0067] In other embodiments, the locking member 8 can be spring driven. Specifically, the side of the locking member 8 is triangular and the inclined surface faces the side beam 1. The counterweight 4 is equipped with a spring that drives the locking member 8 to move towards the side beam 1. Therefore, when the counterweight 4 is placed on the side beam 1, it automatically clamps with the side beam 1, which is more convenient and faster.

[0068] Optionally, in some embodiments, the counterweight 4 is provided with a lifting eye hole 10, which helps the user to move the counterweight 4.

[0069] In other words, the key point of this utility model embodiment is that: the two detachable side beams 1 are used for assembly. When handling or transportation is required, the two side beams 1 can be disassembled and installed separately. After disassembly, it is more convenient to transport and handle. The lower lifting rings 2 are respectively installed on the lower surface of the two side beams 1, and several upper lifting rings 3 are respectively installed on the upper surface of the two side beams 1. The wind turbine nacelle is lifted by the upper lifting rings 3 and the lower lifting rings 2. The tilt angle of the lifting device can be adjusted by adjusting the number of counterweights 4 detachably installed on the side beams 1. This reduces the tilt angle of the lifting device caused by the large deviation between the center of gravity of the lifting device and the center of gravity of the nacelle, improves the friendliness of operation, and reduces the difficulty of assembling the wind turbine nacelle. At the same time, the counterweights 4 can be detached during transportation and handling, and can be transported and handled separately, reducing transportation costs and difficulties.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0071] The above provides a detailed description of a wind turbine nacelle lifting device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A spreader for a wind turbine nacelle, characterized in that The utility model relates to a kind of ring-shaped structures, including: Two side beams (1), two the side beam (1) mirror symmetry, and detachably connect; Several lower lifting rings (2), several the lower lifting ring (2) is respectively installed in the lower surface of two the side beam (1); Several upper lifting rings (3), several the upper lifting ring (3) is respectively installed in the upper surface of two the side beam (1); Counterweight (4), the counterweight (4) is detachably installed in the side beam (1).

2. A wind turbine nacelle hoist according to claim 1, characterised in that, Two the side beam (1) when connecting, it is composed of annular structure, several the lower lifting ring (2) and several the upper lifting ring (3) are evenly distributed in two the side beam (1), and the connecting plate (7) is equipped at the junction of two the side beam (1), and the connecting plate (7) is equipped with several through holes for bolt connection.

3. A wind turbine nacelle hoist according to claim 1, wherein, Also including: Several adjusting parts (5), several the adjusting part (5) is installed in the side beam (1), and the number and position of several the adjusting part (5) are one-to-one corresponding with several the upper lifting ring (3), and the upper lifting ring (3) can be adjusted position by the length direction of corresponding adjusting part (5).

4. A wind turbine nacelle hoist according to claim 3, characterised in that, The adjusting part (5) is plate structure, and the length direction of several the adjusting part (5) is all inclined towards the direction of gravity center of two the side beam (1) combination whole.

5. A wind turbine nacelle hoist according to claim 4, characterised in that, Several adjusting holes (6) are equipped on the adjusting part (5), and are evenly distributed along the length direction of the adjusting part (5), and the upper lifting ring (3) is connected with the adjusting part (5) by passing through the adjusting hole (6).

6. A wind turbine nacelle hoist according to claim 1, wherein, The counterweight (4) is U-shaped structure.

7. A wind turbine nacelle hoist according to claim 6, wherein, Locking part (8) is equipped on the counterweight (4), for fixing the counterweight (4) on the side beam (1).

8. A wind turbine nacelle hoist according to claim 7, characterised in that, Threaded hole (9) is equipped on the counterweight (4), the locking part (8) adopts long bolt, and make the long bolt be threadedly installed in the threaded hole (9).

9. A wind turbine nacelle hoist according to any of claims 1-8, characterised in that, Lifting ring hole (10) is equipped on the counterweight (4).

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