Transportation and hoisting tool for preventing wind power tower drum flange from deforming

Abstract

The utility model relates to the technical field of hoisting transportation, in particular to a transportation and hoisting tool for preventing a wind power tower drum flange from deforming, which comprises a tower drum, a flange, a plurality of supporting rods, a central connecting plate and a plurality of lifting lug components, the tower drum is round, the flange is connected to the top of the tower drum, one end of each supporting rod is connected with the center connecting plate, and the other end of each supporting rod is connected with the outer wall of the tower drum through a lifting lug assembly. Each lifting lug assembly comprises a lifting lug bottom plate, a lifting lug plate and a reinforcing plate. The transportation and hoisting tool for preventing the wind power tower drum flange from deforming is of a structure with the functions of a transportation tool and a hoisting tool, out-of-round deformation of the tower drum flange in the storage, transportation and hoisting processes can be prevented, and out-of-plane deformation of the flange plate in the hoisting process can be prevented; particularly, out-of-round deformation of the tower drum flange due to the action of gravity or inertia force in the storage and transportation process can be prevented, and out-of-plane deformation of the flange plate in the hoisting process can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting and transportation, in particular to a transportation and hoisting tool for preventing a flange of a wind power tower from being deformed. Background Art

[0002] Large-scale single-unit capacity can reduce the cost per kilowatt-hour, so all complete machine manufacturers are accelerating the research and development of large-megawatt models. At present, the power of onshore wind turbines has entered the 7MW+ era, and offshore wind turbines have entered the 16MW+ era. The diameter of the tower also increases with the increase of the capacity of the single unit. In actual engineering projects, towers with a diameter of more than 8.5 meters have appeared. In order to reduce the weight of the tower, the tower designer generally chooses thinner tower walls and tower flanges as much as possible when the structural strength meets the requirements. This makes it easy for the tower flange to lose roundness during storage, transportation and hoisting, making it difficult to connect and install the tower bolt holes. In severe cases, special equipment is required to correct the roundness, which seriously affects the construction period. In addition, the current tower hoisting technology uses bolt assemblies and flange holes (1~2 flange holes are used for each lifting point) to fix the shackle on the flange. When the flange is thin and the tower weight is heavy, the flange at the lifting point is prone to out-of-plane bending, which affects the use and causes economic losses. Utility Model Content

[0003] The utility model aims to provide a transport and hoisting tool for preventing the flange of a wind power tower from being deformed, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A transport and hoisting tool for preventing the deformation of a flange of a wind power tower, comprising: a tower, a flange, a plurality of support rods, a central connecting plate and a plurality of lifting lug assemblies;

[0006] The tower is circular, the flange is connected to the top of the tower, and one end of each of the struts is connected to the central connecting plate, and the other end is connected to the outer wall of the tower through a lifting ear assembly;

[0007] Each of the lifting ear components comprises: a lifting ear bottom plate, a lifting ear plate and a reinforcing plate;

[0008] The reinforcing plate is welded to the top of the ear bottom plate. The ear plate is L-shaped, one side of its inner wall is welded to the ear bottom plate and the reinforcing plate, and the other side is in contact with the outer side wall of the tower.

[0009] Preferably, two connection holes are provided on the ear bottom plate and are respectively located on both sides of the ear plate, wherein one of the connection holes is a circular through hole and the other connection hole is a straight slot-shaped through hole.

[0010] Preferably, a rubber block is connected to the side of the ear plate in contact with the outer wall of the tower, so as to protect the coating of the outer wall of the tower.

[0011] Preferably, the cross-section of the support rod is T-shaped, and each support rod is radially connected to the central connecting plate at equal intervals.

[0012] Preferably, a plurality of connecting through holes are provided on the flange plate at one end of the support rod for bolt connection with the central connecting plate, and the other end of the support rod is welded to the lifting ear bottom plate.

[0013] Preferably, the center connecting plate is provided with a plurality of through holes, and the number of the through holes is the same as the number of the struts. The through holes are long strips, which are convenient for cooperating with the connecting through holes to adjust the positions of the bolts. The back side of the center connecting plate is connected with reinforcing ribs in the same direction as the struts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The transport and hoisting tooling for preventing deformation of the flange of the wind turbine tower has a structure with the functions of both the transport tooling and the hoisting tooling, which can prevent the tower flange from being out of roundness during storage, transportation and hoisting, and can also prevent the flange from being deformed out of plane during hoisting. Specifically, it can prevent the tower flange from being out of roundness due to gravity or inertial force during storage and transportation, and can prevent the flange from being deformed out of plane during hoisting;

[0016] 2. The tooling has adjustable features and can adapt to flanges with different diameters and bolt hole distances within a certain range;

[0017] 3. The tooling integrates storage, transportation and lifting tools, saving the disassembly and installation time when switching between different tools, and has a simple structure, low cost and reusability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a bottom-up three-dimensional structural diagram of the central connecting plate of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting ear assembly of the utility model.

[0021] In the figure: 1. tower; 2. flange; 3. support rod; 4. center connecting plate; 5. lifting ear bottom plate; 6. lifting ear plate; 7. reinforcement plate; 8. rubber block; 9. reinforcement rib. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 As shown, a transport and hoisting tool for preventing the flange of a wind power tower from deforming comprises: a tower 1, a flange 2, a plurality of struts 3, a central connecting plate 4 and a plurality of lifting lug assemblies; the tower 1 is circular, the flange 2 is connected to the top of the tower 1, and one end of each strut 3 is connected to the central connecting plate 4, and the other end is connected to the outer wall of the tower 1 through a lifting lug assembly; each lifting lug assembly comprises: a lifting lug base plate 5, a lifting lug plate 6 and a reinforcing plate 7; the reinforcing plate 7 is welded to the top of the lifting lug base plate 5, the lifting lug plate 6 is L-shaped, one side of the inner wall of the lifting lug plate 6 is welded to the lifting lug base plate 5 and the reinforcing plate 7, and the other side of the lifting lug plate 6 is in contact with the outer wall of the tower 1, and the L-shaped lifting lug plate 6 can increase the out-of-plane bending stiffness of the lifting assembly and reduce the out-of-plane deformation of the flange 2.

[0024] like Figure 3 As shown, two connection holes are provided on the lifting ear bottom plate 5 and are respectively located on both sides of the lifting ear plate 6 , one of the connection holes is a circular through hole and the other is a straight slot-shaped through hole, which is convenient for aligning with the hole on the flange 2 .

[0025] like Figure 3 As shown, a rubber block 8 is connected to the side of the ear plate 6 that contacts the outer wall of the tower 1 to protect the coating of the outer wall of the tower 1 .

[0026] like Figure 1 As shown, the cross section of the support rod 3 is T-shaped, and each support rod 3 is radially connected to the central connecting plate 4 at equal intervals.

[0027] like Figure 1 As shown, a plurality of connecting through holes are provided on the flange plate at one end of the support rod 3 for bolt connection with the central connecting plate 4 , and the other end of the support rod 3 is welded to the lifting ear bottom plate 5 .

[0028] like Figure 1-2 As shown, the center connecting plate is circular or polygonal, and a plurality of through holes are opened on the center connecting plate 4, and the number of the through holes is the same as the number of the struts 3. The through holes are long strips, which are convenient for matching the positions of the connecting through holes and adjusting the bolts. The back of the center connecting plate 4 is connected with reinforcing ribs 9 in the same direction as the struts 3.

[0029] The working principle of the utility model is as follows:

[0030] When in use, the tooling is placed where it is needed, and then one end of the support rod 3 is bolted to the center line connecting plate 4 and adjusted according to the on-site environment. Then the ear base plate 5 of the ear assembly is fitted into the hole on the flange 2, and it is bolted into the two connecting holes on the ear base plate 5, and contacts the outer wall of the tower 1 through the ear plate 6 on one side and through the rubber block 8. On the one hand, the outer wall coating of the tower 1 is protected, and on the other hand, its contact area is increased to improve stability.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transport and hoisting tool for preventing deformation of a wind turbine tower flange, characterized in that: include: A tower (1), a flange (2), a plurality of support rods (3), a central connecting plate (4), and a plurality of lifting lug assemblies; The tower (1) is circular, the flange (2) is connected to the top of the tower (1), and one end of each of the support rods (3) is connected to the central connecting plate (4), and the other end is connected to the outer wall of the tower (1) through a lifting ear assembly; Each of the lifting eye components comprises: a lifting eye bottom plate (5), a lifting eye plate (6) and a reinforcing plate (7); The reinforcing plate (7) is welded to the top of the lifting eye bottom plate (5); the lifting eye plate (6) is L-shaped, one side of its inner wall is welded to the lifting eye bottom plate (5) and the reinforcing plate (7), and the other side is in contact with the outer wall of the tower (1).

2. The transport and hoisting tool for preventing deformation of the flange of a wind turbine tower according to claim 1 is characterized in that: The ear bottom plate (5) is provided with two connection holes, which are respectively located on two sides of the ear plate (6), one of the connection holes is a circular through hole, and the other connection hole is a straight slot-shaped through hole.

3. The transport and hoisting tool for preventing deformation of the flange of a wind turbine tower according to claim 1 is characterized in that: A rubber block (8) is connected to the side of the hanging ear plate (6) that contacts the outer wall of the tower (1) and is used to protect the coating of the outer wall of the tower (1).

4. The transport and hoisting tool for preventing deformation of the flange of a wind turbine tower according to claim 1 is characterized in that: The cross section of the support rod (3) is T-shaped, and each support rod (3) is radially connected to the central connecting plate (4) at equal intervals.

5. The transport and hoisting tool for preventing deformation of the flange of a wind turbine tower according to claim 1 is characterized in that: A plurality of connecting through holes are provided on a flange plate at one end of the support rod (3) for bolt connection with a central connecting plate (4), and the other end of the support rod (3) is welded to a lifting ear bottom plate (5).

6. The transport and hoisting tool for preventing deformation of the flange of a wind turbine tower according to claim 1 is characterized in that: The central connecting plate (4) is provided with a plurality of through holes, and the number of the through holes is the same as the number of the support rods (3). The through holes are in the shape of long strips, so as to facilitate the adjustment of the positions of the connecting through holes and the bolts. The back side of the central connecting plate (4) is connected with reinforcing ribs (9) in the same direction as the support rods (3).

Images