Aluminum alloy platform structure in wind power tower drum

Abstract

The utility model discloses an aluminum alloy platform structure in a wind power tower drum, which comprises a bottom plate assembly, the bottom of the bottom plate assembly is fixedly connected with a bottom support beam and a connection reinforcing corner fitting, and the upper part of the bottom plate assembly is provided with a guardrail assembly, a flip plate assembly and a grating assembly; the bottom plate assembly is formed by assembling a plurality of sheet bodies, and each sheet body is formed by inserting and combining bottom plate panels; the bottom supporting beam comprises two main beams arranged in parallel, the opposite outer sides of the two main beams are connected with two auxiliary beams perpendicular to the two main beams, the two auxiliary beams are arranged in parallel, and supporting beams are connected between the two main beams and between the two auxiliary beams. According to the aluminum alloy platform structure in the wind power tower drum, the basic requirement for an accessory platform in the tower drum can be met, the problem of later maintenance is effectively solved, a unique module assembling mode is adopted, and transportation and on-site assembling, preparing and hoisting are convenient.

Description

Technical Field

[0001] The utility model relates to an aluminum alloy platform structure in a wind power tower, belonging to the technical field of wind power towers. Background Art

[0002] As an important part of the wind turbine generator set, the wind turbine tower is the basic platform for realizing the power generation function. It is not only the main body supporting the wind turbine, but also the transmission channel of electricity. It is also the device and place for protecting and maintaining the entire wind power system. It protects internal equipment and personnel from external environmental factors such as wind, rain, snow, salt spray, and ultraviolet radiation. Under various wind field environmental conditions, to ensure the normal operation of the wind power generation system for 20 years, the wind turbine tower is required to have high reliability and high maintainability, so as to provide safe and convenient support for the maintenance of the wind power generation system. The wind turbine tower includes the tower body of concrete or steel structure and the accessories inside the tower. The steel and concrete main body is the basis for realizing the tower function, and the accessories inside the tower are the necessary components for realizing all the functions of the tower.

[0003] The main structure of the tower accessories includes various platforms distributed at different heights in the tower, as well as various structural parts installed on the inner wall of the tower to achieve various support and support functions. The tower accessories are available in the following materials: steel, plastic, rubber, glass, wood and aluminum. Although the steel accessories have high mechanical properties and high reliability, they have a large dead weight due to their high mass density, which is not conducive to disassembly and transportation. In addition, the corrosion resistance of steel is poor in the wind field environment, and it is difficult to meet the 20-year use requirements, and the maintenance cost during the life cycle is high. Although plastic products are light in weight, they have poor mechanical properties, are not environmentally friendly, are easy to age, and are not fireproof, so plastic is generally not used in the main structure of the tower accessories. Rubber is mainly used in some special parts of the tower accessories because it also has the same disadvantages as plastic and cannot be used as the main structure of the tower accessories. It is very difficult to process and maintain glass products after they are formed once. Considering the cost and the layout space in the tower, its safety factor is low, and it is difficult to meet the use requirements of the main structure of the tower accessories. Wood has poor machinability, is not fireproof, and its mechanical properties are difficult to meet the requirements of the main structure of the tower accessories. Therefore, a lightweight, corrosion-resistant, and environmentally friendly material is urgently needed to redesign the structure to meet the requirements.

[0004] As a light metal material, aluminum alloy has a mass density of only one-third of that of steel, but its mechanical properties and machinability are almost the same as those of steel, and it has good corrosion resistance in wind farm environments and can meet the requirements of twenty years of use. The entire process of production, manufacturing, processing, and transportation of aluminum products is relatively friendly to the environment, and they can be recycled and reused after reaching their service life, making them more in line with the concepts of environmental protection and energy conservation and emission reduction. Wind power itself is a way to obtain clean energy, and the development of wind power itself is to practice the concepts of environmental protection and energy conservation and emission reduction, so aluminum alloys that are in line with the concepts of environmental protection and energy conservation and emission reduction should be used. Aluminum alloys are increasingly used in wind power systems, and the use of aluminum alloys in the wind power tower as the main structure of the tower accessories has great advantages. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides an aluminum alloy platform structure in a wind turbine tower, which can meet the basic requirements for an accessory platform in the tower and effectively reduce the difficulty of later maintenance. It adopts a unique module assembly method, which is convenient for transportation and on-site assembly, preparation and hoisting.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An aluminum alloy platform structure in a wind power tower comprises a base plate assembly, a base support beam and a connecting reinforcement angle piece are fixedly connected to the bottom of the base plate assembly, and a guardrail assembly, a flap plate assembly and a grille assembly are installed on the upper part of the base plate assembly; the base plate assembly is assembled from a plurality of sheets, and each sheet is formed by plugging and assembling base plate panels; the base support beam comprises two main beams arranged in parallel, and two sub-beams arranged perpendicularly thereto are connected to the facing outer sides of the two main beams, and the two sub-beams are arranged in parallel, and supporting beams are connected between the two main beams and the two sub-beams.

[0008] Furthermore, the base plate assembly is provided with a carport opening, a grille opening, a ladder opening and a ground window, and the edges of the carport opening, the grille opening, the ladder opening and the ground window and the outer edge of the base plate assembly can be equipped with different forms of aluminum alloy profile edging as needed.

[0009] Furthermore, the base plate assembly is composed of a first sheet, a second sheet, a third sheet and a fourth sheet. The third sheet and the fourth sheet are distributed on both sides of the ladder opening, the cabin opening and the grille opening are both opened in the second sheet, the ladder opening cross sheet is opened in the second sheet and the third sheet, and the floor window is opened on the side of the ladder opening.

[0010] Furthermore, the main beam, the auxiliary beam and the supporting beam are connected by connecting angle codes or connecting brackets; and platform suspensions are installed on the ends of the main beam and the auxiliary beam.

[0011] Furthermore, the main beam and the auxiliary beam are provided with bolt holes or bolt grooves, and are connected and fixed together with the base plate assembly by bolts; the outer ends of the main beam and the auxiliary beam are provided with bolt holes or bolt grooves, which are used to connect the tower by bolts to achieve installation and fixation.

[0012] Furthermore, the guardrail assembly includes a circumferential guardrail, a cabin opening guardrail and a ladder opening guardrail.

[0013] Furthermore, the circumferential guardrail is installed on the circumference of the base plate assembly, the cabin opening guardrail is installed on the periphery of the cabin opening, and the ladder opening guardrail is installed on the periphery of the ladder opening. Each guardrail is formed by bending a rectangular tube or a circular tube and is installed and fixed to the base plate assembly through a fixing seat at the bottom.

[0014] Furthermore, the flap plate assembly includes a ladder opening flap plate and a cabin opening flap plate.

[0015] Furthermore, the ladder opening flap plate is installed on the ladder opening through a bracket, and a buffer block is installed on the ladder opening flap plate; the cabin opening flap plate is installed on the cabin opening through a bracket, and a limiting bracket is installed on the cabin opening flap plate.

[0016] Furthermore, the grille assembly is formed by welding an aluminum plate or a steel plate with an angle aluminum or an angle steel.

[0017] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0018] The platform structure is made of high-strength aluminum alloy, which has the characteristics of light weight, high strength, easy processing, chemical corrosion resistance, salt spray resistance, and high recycling value. It not only meets the basic requirements for the accessory platform in the tower, but also effectively reduces the difficulty of later maintenance.

[0019] The platform structure adopts a unique modular assembly method with high manufacturing precision and short cycle, which meets the construction requirements of various links such as on-site assembly, preparation and hoisting. The modular design facilitates automation and large-scale production, which can effectively reduce labor intensity, improve labor efficiency, and also effectively reduce transportation costs;

[0020] The platform structure design concept is flexible and can easily realize design solutions of different specifications and sizes. In addition, the molds and profiles are highly versatile. The scale effect can effectively reduce the mold cost and further reduce the production cost of the platform structure.

[0021] The new tower internal accessory platform structure is more environmentally friendly. After reaching the end of its service life, the aluminum alloy can be recycled and reused, and the recovery rate and residual value are very high.

[0022] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural stereogram of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the utility model along another direction;

[0025] Figure 3 It is a top view of the structure of the bottom plate assembly;

[0026] Figure 4 yes Figure 3 Bottom view of the middle structure;

[0027] Figure 5 It is a structural schematic diagram of the bottom support beam;

[0028] Figure 6 It is a schematic diagram of the structure of the guardrail assembly;

[0029] Figure 7 It is a structural schematic diagram of the flip cover plate assembly.

[0030] In the figure, 1-bottom plate assembly, 11-first sheet, 12-second sheet, 13-third sheet, 14-fourth sheet, 15-cabin opening, 16-grating opening, 17-ladder opening, 18-ground window; 2-bottom support beam, 21-main beam, 22-secondary beam, 23-support beam, 24-platform suspension; 3-connecting and reinforcing angle pieces; 4-guardrail assembly, 41-circumferential guardrail, 42-cabin opening guardrail, 43-ladder opening guardrail; 5-flip plate assembly, 51-ladder opening flip plate, 52-cabin opening flip plate, 53-buffer block, 54-limiting bracket; 6-grating assembly. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0032] like Figure 1-Figure 7 As shown together, the utility model provides an aluminum alloy platform structure in a wind power tower, including a base plate assembly 1, a bottom support beam 2 and a connecting reinforcement angle piece 3 are fixedly connected to the bottom of the base plate assembly 1, and a guardrail assembly 4, a flap plate assembly 5 and a grille assembly 6 are installed on the upper part of the base plate assembly 1.

[0033] The base plate assembly 1 is the bottom foundation of the platform structure to support people and objects. The base plate assembly 1 is assembled from a plurality of sheets, and each sheet is assembled by plugging and assembling base plate panels.

[0034] The base plate assembly 1 is provided with a carport opening 15, a grille opening 16, a ladder opening 17 and a ground window 18. The edges of the carport opening 15, the grille opening 16, the ladder opening 17 and the ground window 18 and the outer edge of the base plate assembly 1 can be equipped with different forms of aluminum alloy profiles as needed.

[0035] When the overall size of the base plate assembly 1 is too large, it can be divided into 3 or 4 pieces as needed, assembled separately and transported in a split manner to improve transportation efficiency, and then assembled after arriving at the tower assembly site of the wind farm.

[0036] The floor assembly 1 in this embodiment is composed of a first sheet 11, a second sheet 12, a third sheet 13 and a fourth sheet 14. The third sheet 13 and the fourth sheet 14 are distributed on both sides of the ladder opening 17. The cabin opening 15 and the grille opening 16 are both opened in the second sheet 12. The ladder opening 17 is opened in the second sheet 12 and the third sheet 13 across the sheet. The floor window 18 is opened on the side of the ladder opening 17.

[0037] The bottom support beam 2 includes two main beams 21 arranged in parallel, and the two main beams 21 are connected to the outer sides facing each other with two sub-beams 22 arranged perpendicularly thereto, and the two sub-beams 22 are arranged in parallel; a supporting beam 23 is connected between the two main beams 21 and the two sub-beams 22; the main beams 21, the sub-beams 22 and the supporting beams 23 are connected by connecting angle codes or connecting brackets.

[0038] A platform hanger 24 is installed on the ends of the main beam 21 and the auxiliary beam 22 .

[0039] The main beam 21 and the auxiliary beam 22 are both provided with bolt holes or bolt grooves, and are connected and fixed together with the base plate assembly 1 by bolts; the outer ends of the main beam 21 and the auxiliary beam 22 are provided with bolt holes or bolt grooves for connecting the tower by bolts to achieve installation and fixation.

[0040] The guardrail assembly 4 includes a circumferential guardrail 41, a cabin opening guardrail 42 and a ladder opening guardrail 43. The circumferential guardrail 41 is installed on the circumference of the base plate assembly 1, the cabin opening guardrail 42 is installed on the periphery of the cabin opening 15, and the ladder opening guardrail 43 is installed on the periphery of the ladder opening 17. Each guardrail is formed by bending a rectangular tube or a circular tube and is installed and fixed to the base plate assembly 1 through a fixing seat at the bottom.

[0041] The flap plate assembly 5 includes a ladder opening flap plate 51 and a cabin opening flap plate 52. The ladder opening flap plate 51 is installed on the ladder opening 17 through a bracket. The ladder opening flap plate 51 is equipped with a buffer block 53 for preventing rigid collision with the tower wall during flipping; the cabin opening flap plate 52 is installed on the cabin opening 15 through a bracket. The cabin opening flap plate 52 is equipped with a limit bracket 54 for accurately controlling the opening and closing angle.

[0042] The grille assembly 6 can ensure the ventilation function of the floor window and can also bear the stepping of people. The grille assembly 6 can be welded by aluminum plate or steel plate and angle aluminum or angle steel.

[0043] The assembly and installation sequence of the aluminum alloy platform structure is:

[0044] 1. Assemble the first sheet 11, the second sheet 12, the third sheet 13 and the fourth sheet 141 of the bottom plate assembly 1 respectively, and install the required edges of each sheet in place during the assembly process;

[0045] 2. Assemble the first plate 11, the second plate 12, the third plate 13 and the fourth plate 141 of the bottom plate assembly 1;

[0046] 3. Turn over the assembled bottom plate assembly 1 so that its bottom surface faces upward;

[0047] 4. Assemble the hemming and connecting reinforcement corner pieces 3 of the cross-piece body onto the bottom plate assembly 1;

[0048] 5. Place the parts of the bottom support beam 2 on the bottom plate assembly 1 and connect them together with the connecting angle code and the connecting bracket;

[0049] 6. Connect and fix the bottom support beam 2 and the bottom plate assembly 1 together;

[0050] 7. Install the flip cover assembly 5 on the bottom plate assembly 1;

[0051] 8. Install the grille assembly 6 on the bottom plate assembly 1;

[0052] 9. Install the guardrail assembly 4 on the base plate assembly 1.

[0053] The entire tower platform adopts an assembled structure, mainly bolted and slotted, which is easy to install, simple in structure, safe and reliable. It is transported in large pieces, which makes transportation more efficient.

[0054] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An aluminum alloy platform structure in a wind turbine tower, characterized in that: The invention comprises a bottom plate assembly (1), wherein a bottom support beam (2) and a connecting and reinforcing corner piece (3) are fixedly connected to the bottom of the bottom plate assembly (1), and a guardrail assembly (4), a flap assembly (5) and a grille assembly (6) are installed on the top of the bottom plate assembly (1); the bottom plate assembly (1) is assembled from a plurality of sheet bodies, and each sheet body is assembled by plugging and assembling bottom plate panels; the bottom support beam (2) comprises two main beams (21) arranged in parallel, and the two main beams (21) are connected to two sub-beams (22) arranged perpendicularly thereto on their outer sides facing each other, and the two sub-beams (22) are arranged in parallel, and a supporting beam (23) is connected between the two main beams (21) and the two sub-beams (22).

2. The aluminum alloy platform structure in a wind turbine tower according to claim 1, characterized in that: The base plate assembly (1) is provided with a cabin opening (15), a grille opening (16), a ladder opening (17) and a floor window (18); the edges of the cabin opening (15), the grille opening (16), the ladder opening (17) and the floor window (18) and the outer edge of the base plate assembly (1) are all provided with an edge wrapping of an aluminum alloy profile.

3. The aluminum alloy platform structure in a wind turbine tower as claimed in claim 2, characterized in that: The floor assembly (1) is composed of a first plate (11), a second plate (12), a third plate (13) and a fourth plate (14); the third plate (13) and the fourth plate (14) are distributed on both sides of the ladder opening (17); the cabin opening (15) and the grille opening (16) are both opened in the second plate (12); the ladder opening (17) is opened across the second plate (12) and the third plate (13); and the floor window (18) is opened on the side of the ladder opening (17).

4. The aluminum alloy platform structure in a wind turbine tower according to claim 1, characterized in that: The main beam (21), the secondary beam (22) and the supporting beam (23) are connected by connecting angle brackets or connecting brackets; and a platform hanger (24) is installed on the ends of the main beam (21) and the secondary beam (22).

5. The aluminum alloy platform structure in a wind power tower as claimed in claim 1, characterized in that: The main beam (21) and the auxiliary beam (22) are both provided with bolt holes or bolt grooves, and are connected and fixed together with the base plate assembly (1) by bolts; the outer ends of the main beam (21) and the auxiliary beam (22) are both provided with bolt holes or bolt grooves, and are used for connecting the tower by bolts to achieve installation and fixation.

6. The aluminum alloy platform structure in a wind power tower as claimed in claim 1, characterized in that: The guardrail assembly (4) comprises a circumferential guardrail (41), a cabin opening guardrail (42) and a ladder opening guardrail (43).

7. The aluminum alloy platform structure in a wind power tower as claimed in claim 6, characterized in that: The circumferential guardrail (41) is installed on the circumference of the base plate assembly (1), the cabin opening guardrail (42) is installed on the periphery of the cabin opening (15), and the ladder opening guardrail (43) is installed on the periphery of the ladder opening (17). Each guardrail is formed by bending a rectangular tube or a round tube and is installed and fixed to the base plate assembly (1) through a fixing seat at the bottom.

8. The aluminum alloy platform structure in a wind turbine tower as claimed in claim 1, characterized in that: The flap plate assembly (5) comprises a ladder opening flap plate (51) and a cabin opening flap plate (52).

9. The aluminum alloy platform structure in a wind turbine tower as claimed in claim 8, characterized in that: The ladder opening flap plate (51) is mounted on the ladder opening (17) via a bracket, and a buffer block (53) is mounted on the ladder opening flap plate (51); the cabin opening flap plate (52) is mounted on the cabin opening (15) via a bracket, and a limit bracket (54) is mounted on the cabin opening flap plate (52).

10. The aluminum alloy platform structure in a wind power tower as claimed in claim 1, characterized in that: The grille assembly (6) is formed by welding an aluminum plate or a steel plate and an angle aluminum or an angle steel.

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