Stator lifting appliance for wind driven generator

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a wind driven generator stator lifting appliance. In order to solve the problem of poor universality of a wind driven generator stator lifting appliance in the prior art, the utility model provides a novel wind driven generator stator lifting appliance which comprises a lifting beam main body and four groups of sliding lifting assemblies, each group of sliding lifting components comprises a sliding lifting sleeve, a second lifting lug, a lifting plate and a plurality of lifting rods matched with four groups of lifting threaded holes in the stator of the wind driven generator; and the four sliding lifting sleeves are glidingly sleeved on the main beams from the four end parts of the two main beams. The stator lifting appliance is high in universality, and the utilization rate of the stator lifting appliance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hangers, in particular to a stator hanger of a wind turbine generator. Background Art

[0002] Wind power has been used more and more widely as a clean energy. When lifting the large stator of a wind turbine, a special stator lifting device is required to assist the lifting device (such as a crane or overhead crane) for lifting.

[0003] For example, prior art 1: Authorization announcement number CN206751167U, the patent name is a wind turbine nacelle hoist, but the solution has poor versatility, does not have a radial adjustment function, and cannot be applied to the hoisting of semi-direct drive wind turbine stators of different sizes, and has poor versatility;

[0004] For example, prior art 2: Authorization announcement number CN217732424U, the patent name is hanger tooling for large stators of wind turbines, but the solution has four lifting points. If the stator of the wind turbine is large, the four lifting points may not meet the lifting requirements and have poor applicability. Summary of the invention

[0005] In order to solve the problem of poor versatility of the wind generator stator hanger in the prior art, the utility model provides a new wind generator stator hanger.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A wind turbine stator hanger comprises a hanger beam body and four sets of sliding hanger assemblies;

[0008] The main body of the hanging beam comprises two main beams arranged horizontally, the two main beams are fixed in a cross shape, the four ends of the two main beams are equidistant from the intersection of the two main beams, the top surfaces of the four ends of the two main beams are fixed with first lifting ears for connecting with the lifting device, and a connecting beam is fixed between two adjacent ends of the two main beams;

[0009] Each set of sliding lifting components includes a sliding lifting sleeve, a second lifting ear, a hanging plate and a plurality of hanging rods adapted to four sets of lifting threaded holes on the stator of the wind turbine (it is well known to those skilled in the art that the lifting threaded holes on the stator of the wind turbine are located on the end face of the stator of the wind turbine, and there are four sets in total. The lifting threaded holes on the stator of the wind turbine are existing and are set up for the convenience of lifting). The four sliding lifting sleeves are slidably sleeved on the main beams from the four ends of the two main beams. The hanging rod includes a hanging ring and a vertical rod. The top end of the vertical rod is fixed to the hanging ring and the axial direction of the vertical rod is aligned with the They are arranged axially perpendicular to each other, and the bottom end of the vertical rod is provided with an external thread that matches the lifting threaded hole on the generator stator. The non-lifting hole end of the second lifting ear is fixedly connected to the bottom surface of the sliding lifting sleeve, and the top end of the hanging plate is provided with a top connecting hole. The lifting hole end of the second lifting ear is connected to the top connecting hole of the hanging plate through an upper shackle. The side arrangement direction of the hanging plate is perpendicular to the length direction of the corresponding main beam. The bottom end of the hanging plate is provided with a plurality of in-use bottom connecting holes distributed along the length direction perpendicular to the corresponding main beam. The plurality of in-use bottom connecting holes are adapted to be connected with a plurality of hanging rings through a plurality of lower shackles.

[0010] When in use, multiple suspension rods are screwed on the corresponding lifting threaded holes of the stator of the wind turbine generator, and then the pitch circle of the stator of the wind turbine generator is determined, and the four sets of sliding suspension components are moved to the corresponding pitch circle positions of the stator of the wind turbine generator. After the lifting device is connected to the first lifting ear, the stator suspension device is used to lift the stator suspension device and align the stator suspension device with the stator of the wind turbine generator, and then the bottom connecting hole in use on the suspension plate is matched with the suspension ring through the lower shackle adapter connection, and finally the stator of the wind turbine generator is lifted as a whole by the lifting device and the stator suspension device, and transferred to the target position. After the lifting is completed, the lower shackle is removed and then the suspension rod is removed, so that the stator suspension device is separated from the stator of the wind turbine generator; in addition, through the design of the upper shackle and the lower shackle, the replacement of the suspension plate and the suspension rod can be facilitated, so that the stator suspension device in the utility model can be suitable for the stator lifting of wind turbines with more different lifting threaded hole spacings and specifications, and has strong versatility, which effectively improves the utilization rate of the tool.

[0011] Furthermore, a plurality of spare bottom connection holes are provided on the bottom end of the hanger plate and are distributed along a length direction perpendicular to the corresponding main beam. The plurality of spare bottom connection holes and the plurality of bottom connection holes in use are arranged in a straight line as a whole. When in use, different bottom connection holes are selected according to the spacing of the stator threaded holes. For example, one in-use bottom connection hole and one spare bottom connection hole can be used, or two in-use bottom connection holes or two spare bottom connection holes can be used.

[0012] Furthermore, the hanging plate is a triangular plate, the top end of the hanging plate is the top angle end of the triangular plate, the structure is concrete and standardized, and the overall stability is good.

[0013] The beneficial effects produced by the utility model are as follows: through the design of four sliding lifting components, the stator hanger in the utility model can be suitable for the lifting of wind turbine stators of different sizes; at the same time, through the clever design of the hanging plate and the multiple bottom connecting holes arranged on the hanging plate, the stator hanger in the utility model can be suitable for the lifting of larger stators and the lifting of stators with different threaded hole spacings; in addition, through the design of the upper and lower shackles, it is convenient to replace the hanging plate and the hanging rod, so that the stator hanger in the utility model can be suitable for the lifting of wind turbine stators with more different lifting threaded hole spacings and specifications, with strong versatility, and effectively improving the utilization rate of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings herein are incorporated into and constitute a part of the specification, show embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 The overall structure of the stator hanger in the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the stator hanger in the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 This is the front view of the stator hanger in the utility model;

[0019] Figure 4 It is a top view of the stator hanger in the utility model;

[0020] Figure 5 This is a front view of the sliding hanging assembly in the utility model;

[0021] Figure 6 This is a schematic diagram of the stator lifting device in the utility model in use for lifting the stator;

[0022] Figure 7 for Figure 6 Top view of the .

[0023] In the figure: 1-main beam, 2-first lifting eye, 3-connecting beam, 4-wind turbine stator, 5-sliding lifting assembly, 51-sliding lifting sleeve, 52-second lifting eye, 53-hanging plate, 54-hanging rod, 55-upper shackle, 56-lower shackle. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0025] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 7 As shown, a wind turbine stator hanger includes a hanger beam body and four sets of sliding hanger assemblies 5;

[0029] The main body of the hanging beam comprises two main beams 1 arranged horizontally, the two main beams 1 are fixed in a cross shape, the four ends of the two main beams 1 are equidistant from the intersections of the two main beams 1, the top surfaces of the four ends of the two main beams 1 are fixed with first lifting ears 2 for connecting with the lifting device, and a connecting beam 3 is fixed between two adjacent ends of the two main beams 1;

[0030] Each set of sliding suspension components 5 includes a sliding suspension sleeve 51, a second lifting ear 52, a hanging plate 53 and a plurality of suspension rods 54 adapted to four sets of lifting threaded holes on the wind turbine stator 4 (it is well known to those skilled in the art that the lifting threaded holes on the wind turbine stator 4 are located on the end surface of the wind turbine stator 4, and there are four sets in total. The lifting threaded holes on the wind turbine stator 4 are existing and are themselves set up for the convenience of lifting). The four sliding suspension sleeves 51 are slidably sleeved on the main beams 1 from the four ends of the two main beams 1. The suspension rod 54 includes a hanging ring and a vertical rod. The top end of the vertical rod is fixed to the hanging ring and the axial direction of the vertical rod is aligned with the axis of the hanging ring. They are arranged perpendicular to each other, the bottom end of the vertical rod is provided with an external thread that is compatible with the lifting threaded hole on the generator stator, the non-hanging hole end of the second lifting ear 52 is fixedly connected to the bottom surface of the sliding lifting sleeve 51, and the top end of the hanging plate 53 is provided with a top connecting hole, and the lifting hole end of the second lifting ear 52 is connected to the top connecting hole of the hanging plate 53 through an upper shackle 55. The side arrangement direction of the hanging plate 53 is perpendicular to the length direction of the corresponding main beam 1, and the bottom end of the hanging plate 53 is provided with a plurality of in-use bottom connecting holes distributed along a length direction perpendicular to the corresponding main beam 1, and the plurality of in-use bottom connecting holes are adapted to be connected with a plurality of hanging rings through a plurality of lower shackles 56.

[0031] When in use, a plurality of suspension rods 54 are screwed onto the corresponding lifting threaded holes of the wind turbine stator 4, and then the pitch circle of the wind turbine stator 4 is determined, and the four sets of sliding suspension components 5 are moved to the corresponding pitch circle positions of the wind turbine stator 4. After the lifting device is connected to the first lifting lug 2, the stator suspension device is lifted by the lifting device and the stator suspension device is aligned with the wind turbine stator 4. Then, the bottom connection hole in use on the suspension plate 53 is matched with the suspension ring through the lower shackle 56, and finally, the lifting device is connected to the first lifting lug 2. The stator hoist cooperates to lift the stator 4 of the wind turbine generator as a whole and transfer it to the target position. After the lifting is completed, the lower shackle 56 is removed and then the hanging rod 54 is removed, so that the stator hoist is separated from the stator 4 of the wind turbine generator. In addition, through the design of the upper shackle 55 and the lower shackle 56, the replacement of the hanging plate 53 and the hanging rod 54 can be convenient, so that the stator hoist in the utility model can be suitable for the stator lifting of wind turbines with more different lifting thread hole spacings and specifications. It has strong versatility and effectively improves the utilization rate of the tool.

[0032] In specific implementation, a plurality of spare bottom connection holes are also provided on the bottom end of the hanger plate 53, which are distributed along the length direction perpendicular to the corresponding main beam 1. The plurality of spare bottom connection holes and the plurality of bottom connection holes in use are arranged in a straight line as a whole. When in use, different bottom connection holes are selected according to the spacing of the stator threaded holes. For example, one in-use bottom connection hole and one spare bottom connection hole can be used, or two in-use bottom connection holes or two spare bottom connection holes can be used.

[0033] In a specific implementation, the hanging plate 53 is a triangular plate, and the top end of the hanging plate 53 is the top angle end of the triangular plate. The structure is specific and standardized, and the overall stability is good.

[0034] In specific implementation, each hanging plate 53 has two bottom connection holes in use and two spare bottom connection holes.

[0035] During specific implementation, the two active bottom connection holes on each hanging plate 53 are located between the corresponding two standby bottom connection holes, so that the structure is specific and standardized.

[0036] In specific implementation, the two main beams 1 are hollow rectangular steels, and the four sliding sleeves 51 are hollow rectangular steels slidably mounted on the main beams 1, which has a simple structure, low cost and stable structure.

[0037] In this specific embodiment, the two main beams 1 and the sliding suspension assembly 5 are both made of Q355D steel, and the overall structural strength is high.

[0038] In this specific embodiment, the suspension plate 53 and the suspension rod 54 in the sliding suspension assembly 5 are both made of Q355D steel after heat treatment, which further improves the strength of the stator suspension device.

[0039] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A wind turbine stator hanger, characterized in that: It comprises a hanging beam body and four sets of sliding hanging components (5); The main body of the lifting beam comprises two main beams (1) both arranged horizontally, the two main beams (1) being fixed in a cross-shaped manner, the four ends of the two main beams (1) being equidistant from the intersection points of the two main beams (1), the top surfaces of the four ends of the two main beams (1) being fixed with first lifting ears (2) for connecting to a lifting device, and a connecting beam (3) being fixed between two adjacent ends of the two main beams (1); Each set of sliding suspension components (5) comprises a sliding suspension sleeve (51), a second suspension ear (52), a suspension plate (53), and a plurality of suspension rods (54) adapted to four sets of suspension threaded holes on the stator (4) of the wind turbine generator. The four sliding suspension sleeves (51) are slidably mounted on the main beams (1) from the four ends of the two main beams (1). The suspension rods (54) comprise a suspension ring and a vertical rod. The top end of the vertical rod is fixed to the suspension ring and the axial direction of the vertical rod is arranged perpendicular to the axial direction of the suspension ring. The bottom end of the vertical rod is provided with an external thread adapted to the suspension threaded holes on the stator of the generator. The second suspension ear (52) is provided with a suspension plate (53), and a plurality of suspension rods (54) adapted to the four sets of suspension threaded holes on the stator of the wind turbine generator. The non-hanging hole end of the ear (52) is fixedly connected to the bottom surface of the sliding hanging sleeve (51), the top end of the hanging plate (53) is provided with a top connecting hole, the hanging hole end of the second hanging ear (52) is connected to the top connecting hole of the hanging plate (53) through an upper shackle (55), the side arrangement direction of the hanging plate (53) is perpendicular to the length direction of the corresponding main beam (1), and the bottom end of the hanging plate (53) is provided with a plurality of bottom connecting holes in use distributed along the length direction perpendicular to the corresponding main beam (1), and the plurality of bottom connecting holes in use are adapted to be connected to a plurality of hanging rings through a plurality of lower shackles (56).

2. A wind turbine stator hanger according to claim 1, characterized in that: A plurality of spare bottom connection holes are also provided on the bottom end of the hanging plate (53) and are distributed along a length direction perpendicular to the corresponding main beam (1). The plurality of spare bottom connection holes and the plurality of bottom connection holes in use are arranged in a straight line as a whole.

3. A wind turbine stator hanger according to claim 2, characterized in that: The hanging plate (53) is a triangular plate, and the top end of the hanging plate (53) is the top angle end of the triangular plate.

4. A wind turbine stator hanger according to claim 3, characterized in that: Each hanging plate (53) has two bottom connection holes in use and two spare bottom connection holes.

5. A wind turbine stator hanger according to claim 4, characterized in that: The two active bottom connection holes on each hanging plate (53) are located between the corresponding two standby bottom connection holes.

6. A wind turbine stator hanger according to claim 5, characterized in that: The two main beams (1) are both hollow rectangular steels, and the four sliding sleeves (51) are both hollow rectangular steels that are slidably mounted on the main beams (1).

7. A wind turbine stator hanger according to claim 6, characterized in that: The two main beams (1) and the sliding suspension assembly (5) are both made of Q355D steel.

8. A wind turbine stator hanger according to any one of claims 1 to 7, characterized in that: The suspension plate (53) and the suspension rod (54) in the sliding suspension assembly (5) are both made of heat-treated Q355D steel.

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