Tool for hoisting and tailing fan impeller

Abstract

The utility model discloses a tool for hoisting and tailing a fan impeller. The tool comprises a shape following module, a trailing edge protection plate, a hoisting beam, a pressed steel wire rope and a single-wheel pulley, the shape follow-up module is arranged in a blade tailing area and is tightly attached to the outer surface of the blade; the rear edge protection plate is arranged in the rear edge area of the shape follow-up module; the hoisting beam is arranged in the front edge area of the follow-up module, two lifting lugs and a plurality of combinations of pin removers and winches are installed on the hoisting beam, each combination of the pin removers and the winches is matched with a first hoisting belt, one end of each first hoisting belt is fixed to the corresponding pin remover, and the other end of each first hoisting belt is fixed to the corresponding winch after bypassing the follow-up module and the rear edge protection plate. The two ends of the pressing steel wire rope are provided with shackles respectively, the shackles at the two ends of the pressing steel wire rope are hung on the two lifting lugs of the lifting beam respectively, the pressing steel wire rope penetrates through the single-wheel pulley, and the single-wheel pulley can move on the pressing steel wire rope. The utility model effectively solves the problem that blades cannot be slipped by using a conventional tail slipping method in a three-in-one impeller posture.

Description

Technical Field

[0001] The utility model relates to the technical field of fan impeller hoisting, in particular to a fan impeller hoisting tail slip tooling, which is suitable for "three-shun" impeller tail slip hoisting. Background Art

[0002] As an important renewable clean energy source, wind power generation accounts for an increasingly large proportion of the energy grid. The wind turbine installation process, especially the impeller hoisting process, is a very important process.

[0003] During impeller installation, the deviation of the impeller assembly's center of gravity from the hub mounting surface in three impeller positions is numerically determined: "three-way deviation" > "two-way deviation and one-way deviation" > "three-way deviation." The greater the deviation, the more difficult the impeller lifting fixture design becomes. Conventional tail-slipping methods utilize flat slings to tie blades together. However, due to the blade's structure, the trailing edge of the blade cannot be subjected to force, and only the leading edge can be lifted.

[0004] At present, the industry generally compromises and adopts the "two forward and one reverse" posture for impeller lifting. The main reasons are: 1) to reduce the value of the impeller assembly's center of gravity deviating from the hub mounting surface to a certain extent; 2) the use of reverse-feathering blades for tail sliding can reduce the difficulty and cost of the blade manufacturing process.

[0005] To cope with the rapid growth of the wind power industry, some wind turbines are achieving ever-increasing capacity and impeller diameters. Using a "two-forward, one-reverse" impeller hoisting scheme, the center of gravity offset from the hub mounting surface exceeds the design limits of the impeller mount. Based on this, this utility model proposes a tail-feathering tool for wind turbine impeller hoisting, which allows for tail-feathering of the blades in the "three-forward" impeller position. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings and deficiencies of the existing technology and provide a fan impeller lifting and tail sliding tool with a simple and reliable structure and easy operation, which effectively solves the problem that the conventional tail sliding method cannot be used to slide the blades in the "three-straight" impeller posture.

[0007] To achieve the above-mentioned purpose, the technical solution provided by the present invention is as follows: a tool for hoisting the tail of a fan impeller, comprising a follow-up module, a trailing edge guard plate, a hoisting beam, a first lifting belt, a pin remover, a winch, a pressed wire rope and a single-wheel pulley; the follow-up module is arranged in the tail area of the impeller blade and fits tightly with the outer surface of the blade; the trailing edge guard plate is arranged in the trailing edge area of the follow-up module; the hoisting beam is arranged in the leading edge area of the follow-up module, and two lifting ears and a plurality of groups of pin removers are installed on the hoisting beam The sling is a combination of a detent and a winch, and each combination of a detent and a winch is equipped with a first sling, one end of the first sling is fixed on the detent, and the other end thereof is fixed on the winch after passing through the follow-up module and the trailing edge guard plate, and the hoisting beam, the follow-up module and the trailing edge guard plate are tightened and bound by the winch, and both ends of the pressed steel wire rope are installed with shackles, and the shackles at both ends are respectively mounted on the two lifting ears of the lifting beam, and the pressed steel wire rope passes through a single-wheel pulley, and the single-wheel pulley can move on the pressed steel wire rope.

[0008] Furthermore, the single-wheel pulley is connected to the crane via a second lifting belt.

[0009] Furthermore, the conformable module is composed of two separate parts, a pressure surface and a suction surface, which correspond to the windward side and the leeward side of the blade respectively. The internal shape of the entire conformable module matches the outer shape of the blade, and its external shape is spindle-shaped.

[0010] Furthermore, the form-fitting module is a hard foam piece.

[0011] Furthermore, the trailing edge guard plate is V-shaped, and its internal shape matches the outer shape of the trailing edge area of the conformal module.

[0012] Furthermore, the two lifting ears are distributed on both ends of the lifting beam.

[0013] Furthermore, the plurality of pin remover and winch combinations are distributed at equal intervals along the length direction of the lifting beam.

[0014] Furthermore, the pin remover and the winch are installed at the edges of both sides of the lifting beam in a manner facing each other.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] 1. This tool can realize the tail sliding of the blade and meet the "three-smooth" impeller posture lifting requirements.

[0017] 2. The contact area between this tool and the blade is large, which effectively disperses the tail load on the blade surface and reduces the risk of damage to the blade.

[0018] 3. This tool can adapt to the tail force of impellers with different postures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the tail when the impeller is horizontal.

[0020] Figure 2 This is the state diagram of the tail slide fixture when the impeller is horizontal.

[0021] Figure 3 Schematic diagram of the impeller when it is vertical.

[0022] Figure 4 This is the state diagram of the tail fixture when the impeller is vertical.

[0023] Figure 5 This is a schematic diagram of the follow-up module.

[0024] Figure 6 Schematic diagram of the trailing edge guard.

[0025] Figure 7 Schematic diagram of the lifting beam. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0027] like Figures 1 to 7As shown, this embodiment discloses a tool for hoisting and sliding the tail of a fan impeller, including a follow-up module 1, a trailing edge guard plate 2, a hoisting beam 3, a first lifting belt 4, a pin remover 5, a winch 6, a pressed wire rope 7 and a single-wheel pulley 8; the follow-up module 1 is arranged in the tail area of the blade 11 of the impeller 12 and fits tightly with the outer surface of the blade 11; the trailing edge guard plate 2 is arranged in the trailing edge area of the follow-up module 1; the hoisting beam 3 is arranged in the leading edge area of the follow-up module 1, two lifting ears 9 and three groups of pin removers 5 and winches 6 are welded on the lifting beam 3, the two lifting ears 9 are located at the two ends of the lifting beam 3, and each group of pin removers 5 and winches 6 is equipped with a first lifting belt 4, one end of the first lifting belt 4 is fixed on the pin remover 5, and the other end thereof is fixed on the winch 6 after passing through the follow-up module 1 and the trailing edge guard plate 2, 3. The follow-up module 1 and the trailing edge guard plate 2 are tightened and bound, and the follow-up module 1 and the trailing edge guard plate 2 are tightly tied on the tailing area of the blade 11, so that the trailing edge of the blade 11 is stressed when the impeller 12 is tailing. Both ends of the pressing wire rope 7 are equipped with shackles 10, and the shackles 10 at both ends are respectively mounted on the two lifting ears 9 of the lifting beam 3. The pressing wire rope 7 passes through the single-wheel pulley 8, and the single-wheel pulley 8 can move on the pressing wire rope 7. The crane (not shown in the figure) is connected to the single-wheel pulley 8 and the third sling 14 to the hub of the impeller 12 respectively through the second sling 13 and the third sling 14, so that when the impeller 12 is in the tailing process and the blade 11 changes from horizontal to vertical, the crane can tail the blade 11, that is, when the impeller 12 is lifted, the blade posture changes from horizontal to vertical, and the position of the single-wheel pulley 8 on the pressing wire rope 7 is adjusted accordingly, thereby realizing the tailing lifting function.

[0028] Specifically, the adaptable module 1 is made of rigid foam and is divided into two parts, a pressure surface and a suction surface, which correspond to the windward side and the leeward side of the blade 11 respectively. The internal shape of the entire adaptable module 1 matches the outer shape of the blade 11, and its external shape is spindle-shaped, which can better transmit and disperse the pressure of the first sling 4. Through the operation of the detent 5, the winch 6, and the first sling 4, the lifting beam 3, the adaptable module 1, and the trailing edge guard plate 2 are tightened and bound. Due to the presence of the adaptable module 1, the lifting load can be evenly transferred to the windward side and the leeward side of the blade 11, avoiding damage caused by excessive local force on the trailing edge of the blade 11.

[0029] Specifically, the trailing edge guard plate 2 is V-shaped, and its internal shape matches the outer shape of the trailing edge region of the conformal module 1 .

[0030] Specifically, the combination of the three groups of de-pinners 5 and winches 6 are equidistantly distributed in the length direction of the lifting beam 3, two of which are located at the two ends of the lifting beam 3, and the remaining group is located at the center of the lifting beam 3, and the de-pinners 5 and winches 6 of each group are installed at the two side edges of the lifting beam 3 facing each other.

[0031] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A tool for hoisting and tailing a fan impeller, characterized in that: The invention comprises a follow-up module (1), a trailing edge guard plate (2), a lifting beam (3), a first lifting belt (4), a pin remover (5), a hoist (6), a pressed steel wire rope (7) and a single-wheel pulley (8); the follow-up module (1) is arranged in the tail region of the blade (11) of the impeller (12) and is closely fitted with the outer surface of the blade (11); the trailing edge guard plate (2) is arranged in the trailing edge region of the follow-up module (1); the lifting beam (3) is arranged in the leading edge region of the follow-up module (1), and two lifting ears (9) and a combination of a plurality of pin removers (5) and hoists (6) are installed on the lifting beam (3), and each group of pin removers (5) and hoists (6) is provided with a plurality of lifting ears (9) and ... The winch (6) is equipped with a first sling (4), one end of which is fixed on the pin remover (5), and the other end of which is fixed on the winch (6) after passing through the follow-up module (1) and the rear edge guard plate (2). The hoisting beam (3), the follow-up module (1) and the rear edge guard plate (2) are tightened and bound by the winch (6). Both ends of the pressing wire rope (7) are equipped with shackles (10), and the shackles (10) at both ends are respectively mounted on two lifting ears (9) of the hoisting beam (3). The pressing wire rope (7) passes through a single-wheel pulley (8), and the single-wheel pulley (8) can move on the pressing wire rope (7).

2. The fan impeller hoisting and tail-slipping tooling according to claim 1 is characterized in that: The single-wheel pulley (8) is connected to the crane via a second lifting belt (13).

3. The fan impeller hoisting tail sliding tool according to claim 1 is characterized in that: The conformable module (1) consists of two separate parts, a pressure surface and a suction surface, which correspond to the windward side and the leeward side of the blade (11), respectively. The internal shape of the entire conformable module (1) matches the external shape of the blade (11), and its external shape is spindle-shaped.

4. The fan impeller hoisting and tail-slipping tooling according to claim 3 is characterized in that: The conformable module (1) is a hard foam piece.

5. The fan impeller hoisting tail sliding tool according to claim 1 is characterized in that: The trailing edge guard plate (2) is V-shaped, and its internal shape matches the outer shape of the trailing edge region of the conformal module (1).

6. The fan impeller hoisting and tail-slipping tooling according to claim 1 is characterized in that: The two lifting lugs (9) are distributed on the two ends of the lifting beam (3).

7. The fan impeller hoisting and tail-slipping tooling according to claim 1 is characterized in that: The plurality of groups of pin removers (5) and winches (6) are distributed at equal intervals in the length direction of the hoisting beam (3).

8. The fan impeller hoisting and tail-slipping tooling according to claim 7 is characterized in that: The pin remover (5) and the winch (6) are installed at the edges of both sides of the lifting beam (3) in a manner facing each other.

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