Novel tower platform with adjustable diameter

Abstract

The utility model discloses a novel tower platform with an adjustable diameter, which comprises a support beam assembly, a central fixed panel assembly, a variable-diameter panel assembly, a plurality of beam end connecting support pieces and a panel connecting support piece, and the periphery of the support beam assembly is connected with the inner wall of a tower through the plurality of beam end connecting support pieces. The center fixing panel assembly is installed on the supporting beam assembly through the bolt assembly, vacancies used for installing the variable-diameter panel assemblies are formed between the peripheral edge of the center fixing panel assembly and the inner wall of the tower, the number of the variable-diameter panel assemblies is multiple, the different variable-diameter panel assemblies are the same in inner diameter and different in outer diameter, and the variable-diameter panel assemblies are selected according to the sizes of the vacancies. And the outer side edge of the selected variable-diameter panel assembly is connected with the inner wall of the tower through a plurality of panel connecting supporting pieces, and the inner side edge of the selected variable-diameter panel assembly is connected with the supporting beam assembly through a bolt assembly. The diameter of the platform is adjusted, and the installation range of the inner diameter of the tower suitable for the platform is greatly widened.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generator towers, in particular to a novel tower platform with adjustable diameter. Background Art

[0002] Wind turbine towers, whether steel or concrete, are generally truncated cones with varying inner diameters at different tower heights. Several steel platforms are typically installed inside the tower to facilitate maintenance and rest.

[0003] As tower heights have continued to increase in recent years, the need for steel platforms inside the towers has increased, leading to increased design and production cycles. These platforms primarily consist of beams, beam end supports, panels, panel supports, bolt fasteners, rubber strips, and other ancillary components. Currently, all steel platforms are custom-designed based on the inner diameter of the tower where they are located. While this design is simple, proven, and reliable, it can increase design and tower plant production cycles and can be prone to errors.

[0004] In order to reduce the workload of platform design, improve the standardization of platform components, shorten the production cycle of tower platforms and reduce the probability of errors, an innovative tower platform design with adjustable diameter is proposed based on the product characteristics of the tower. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a novel tower platform with adjustable diameter, thereby achieving diameter adjustment of the platform and greatly improving the installation range of the platform applicable to the inner diameter of the tower.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A novel tower platform with adjustable diameter comprises a support beam assembly, a central fixed panel assembly, a variable diameter panel assembly, a plurality of beam end connecting supports and a panel connecting supports. The support beam assembly is connected to the inner wall of the tower by a plurality of beam end connecting supports on all sides. By adjusting the overlap length between the support beam assembly and the beam end connecting supports, the support beam assembly can be installed at positions with different inner diameters inside the tower. The central fixed panel assembly is installed on the support beam assembly by a bolt assembly. Spaces for installing variable diameter panel assemblies are formed between its four edges and the inner wall of the tower. There are multiple variable diameter panel assemblies, and different variable diameter panel assemblies have the same inner diameter and different outer diameters. The variable diameter panel assembly is selected according to the space size, and the outer edge of the selected variable diameter panel assembly is connected to the inner wall of the tower by a plurality of panel connecting supports. The inner edge of the selected variable diameter panel assembly is connected to the support beam assembly by a bolt assembly. By adjusting the overlap length between the variable diameter panel assembly and the panel connecting supports, the variable diameter panel assembly can be installed at positions with different inner diameters inside the tower.

[0008] Furthermore, the variable diameter panel assembly is composed of multiple variable diameter panels of different sizes. The inner edge of each variable diameter panel is connected to the support beam assembly through a bolt assembly, and the outer edge is connected to the inner wall of the tower through a panel connecting support. A cable passing hole is provided on the variable diameter panel located directly above the cable inside the tower.

[0009] Furthermore, a protective rubber strip is provided between the outer edge of the variable diameter panel assembly and the inner wall of the tower.

[0010] Furthermore, the central fixed panel assembly is composed of multiple fixed panels of different sizes. The four sides of each fixed panel are connected to the support beam assembly through bolt assemblies, and a lifting system reserved hole is provided on the fixed panel located directly above the lifting system inside the tower.

[0011] Furthermore, the support beam assembly includes a main beam assembly for bearing all loads of the platform and a secondary beam assembly for supporting the central fixed panel assembly and the variable diameter panel assembly. The main beam assembly includes a plurality of main cross beams and main longitudinal beams arranged in a criss-cross pattern, and a main oblique beam is connected between two adjacent main longitudinal beams. The main oblique beam is located next to the cable through-hole of the variable diameter panel assembly and is parallel to the long side of the cable through-hole. The secondary beam assembly includes a plurality of arc-shaped secondary beams, and the plurality of arc-shaped secondary beams are arranged in sequence with the center of the tower as the center of the circle, and the two ends of each arc-shaped secondary beam are respectively connected to the adjacent main cross beam or main longitudinal beam, and the arc-shaped secondary beam is connected to the inner edge of the variable diameter panel by a bolt assembly.

[0012] Furthermore, the beams inside the support beam assembly are connected via inter-beam connecting supports.

[0013] Furthermore, each beam inside the support beam assembly is a telescopic steel tube or steel section.

[0014] Furthermore, two long waist holes are provided on the beam end connecting support member, and the lap length between the support beam assembly and the beam end connecting support member is adjusted through the long waist holes.

[0015] Furthermore, the panel connection support is L-shaped, one end of which is welded to the inner wall of the tower, and a long waist hole is processed on the side connected to the variable diameter panel assembly, and the lap length of the variable diameter panel assembly and the panel connection support is adjusted through the long waist hole.

[0016] Furthermore, the tower is a concrete tower, and embedded parts for connecting with beam end connecting supports and panel connecting supports are embedded inside the concrete tower.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. Realize standardized management of tower platforms. Platform components do not need to be designed frequently. They are uniformly designed as standard parts, which reduces the workload of platform design, greatly shortens the design cycle, and greatly reduces the probability of errors.

[0019] 2. The tower factory can prepare the stock in advance according to the standard parts drawings, shorten the delivery cycle, and greatly reduce the repeated disassembly and errors in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the tower platform.

[0021] Figure 2 It is a structural diagram of the variable diameter panel assembly.

[0022] Figure 3 for Figure 1 Middle AA section view.

[0023] Figure 4 Schematic diagram of the structure of the center fixed panel assembly.

[0024] Figure 5 Schematic diagram of the structure of the main beam assembly.

[0025] Figure 6 Schematic diagram of the structure of the secondary beam assembly.

[0026] Figure 7 for Figure 1 Middle BB cross-section view.

[0027] Figure 8 Schematic diagram of the structure of the connecting support between beams.

[0028] Figure 9 for Figure 1 A partial enlarged view of point C in the middle.

[0029] Figure 10 Schematic diagram of the structure of the beam end connection support.

[0030] Figure 11 A side view of the panel connection support.

[0031] Figure 12 This is the front view of the panel connection support. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figure 1 As shown, this embodiment provides a novel tower platform with adjustable diameter. The tower 7 is a steel tower. The tower 7 platform includes a support beam assembly 1, a central fixed panel assembly 2, a variable diameter panel assembly 3, a plurality of beam end connection supports 4 and a panel connection support 5. The support beam assembly 1 is connected to the inner wall of the tower 7 by a plurality of beam end connection supports 4 on all sides. By adjusting the overlap length between the support beam assembly 1 and the beam end connection supports 4, the support beam assembly 1 can be installed at positions with different inner diameters inside the tower 7. The central fixed panel assembly 2 is installed on the support beam assembly 1 by a bolt assembly 8. , a space for installing a variable-diameter panel assembly 3 is formed between its four edges and the inner wall of the tower 7. There are multiple variable-diameter panel assemblies 3, and different variable-diameter panel assemblies 3 have the same inner diameter and different outer diameters. The variable-diameter panel assembly 3 is selected according to the size of the space, and the outer edge of the selected variable-diameter panel assembly 3 is connected to the inner wall of the tower 7 through multiple panel connecting supports 5, and its inner edge is connected to the support beam assembly 1 through a bolt assembly 8. By adjusting the overlap length of the variable-diameter panel assembly 3 and the panel connecting support 5, the variable-diameter panel assembly 3 can be installed at positions with different inner diameters inside the tower 7.

[0035] like Figure 2 As shown, the variable diameter panel assembly 3 is located on the periphery of the platform and is composed of multiple variable diameter panels 301 of different sizes. The inner edge of each variable diameter panel 301 is connected to the support beam assembly 1 via a bolt assembly 8, and the outer edge is connected to the inner wall of the tower 7 via a panel connection support 5. Cable holes 302 are provided on the variable diameter panel 301 located directly above the cables inside the tower 7. The spacing between panels is b, which is determined by the design. The variable diameter panels can be set up with a series of panels with different outer diameters D. Each set of panels has an applicable tower inner diameter installation range, and the variable diameter panel is selected according to different tower inner diameters.

[0036] like Figure 3As shown, a protective rubber strip 6 is provided between the outer edge of the variable diameter panel 301 and the inner wall of the tower 7. The distance between the outer edge of the variable diameter panel 301 and the inner wall of the tower 7 is a, which is determined by the design. If the change in the inner diameter of the tower 7 exceeds the allowable range of the a value, the outer diameter D of the variable diameter panel needs to be adjusted. At this time, a variable diameter panel with a suitable outer diameter needs to be selected.

[0037] like Figure 4 As shown, the central fixed panel assembly 2 is located in the middle area of ​​the platform and is composed of multiple fixed panels 201 of different sizes. The four sides of each fixed panel 201 are connected to the support beam assembly 1 by bolt assemblies 8, and a lifting system reserved hole 202 is provided on the fixed panel 201 located directly above the lifting system inside the tower 7. The lifting system may be a ladder, a free-climbing device or an elevator, etc.

[0038] like Figure 5 、 Figure 6 As shown, the support beam assembly 1 includes a main beam assembly for bearing all the loads of the platform and a secondary beam assembly for supporting the central fixed panel assembly and the variable diameter panel assembly. The main beam assembly includes a plurality of main cross beams 101 and main longitudinal beams 102 arranged in a crisscross pattern. In order to ensure reasonable force, a main diagonal beam 103 is connected between two adjacent main longitudinal beams 102. The main diagonal beam 103 is located next to the cable through hole 302 of the variable diameter panel assembly 3 and is parallel to the long side of the cable through hole 302. The main cross beam 101, the main longitudinal beam 102 and the main diagonal beam 103 can be made of telescopic steel pipes, H-shaped steel or other forms of steel. If a telescopic steel pipe is used, it is not necessary to design a longer length, which improves economy. If steel is used, beams of different lengths need to be used according to the different inner diameter ranges of the tower 7. Four circular holes are designed at both ends of the steel, which can be connected to the beam end connecting support 4 and the beam inter-connecting support 9. The secondary beam assembly includes multiple curved secondary beams 104, which are arranged in sequence with the center of the tower as the center of the circle, and the two ends of each curved secondary beam 104 are respectively connected to the adjacent main cross beam 101 or main longitudinal beam 102. The curved secondary beam 104 is connected to the inner edge of the variable diameter panel 301 through a bolt assembly 8. The curved secondary beam 104 can be made of small-sized angle steel, channel steel or other forms of steel.

[0039] like Figure 7 、 Figure 8 As shown, the beams within the support beam assembly 1 are connected by inter-beam connecting supports 9. The inter-beam connecting supports 9 are ordinary steel plates and are designed with four long waist holes 901 for connecting the beams. One end of the inter-beam connecting supports 9 is welded to the beam, and the other end is connected to the beam via a bolt assembly 8. The gap width c between the beams is determined according to design requirements.

[0040] like Figure 9 、 Figure 10As shown, the beam end connection support 4 is a steel plate of length L1, with two long waist holes 401 of length L3 provided on it. The long waist holes 401 are used to adjust the overlap length between the support beam assembly 1 and the beam end connection support 4, enabling adjustment of the platform diameter over a wide range. One end of the beam end connection support 4 is welded to the inner wall of the tower 7, and the other end is connected to the main crossbeam 101 or main longitudinal beam 102 via a bolt assembly 8. The distance between the main beam assembly and the inner wall of the tower 7 is L2, and the length of the long waist holes of the beam end connection support 4 is L3. These two values ​​determine the applicable tower inner diameter installation range of the main beam assembly.

[0041] like Figure 11 、 Figure 12 As shown, the panel connection support 5 is a bent steel plate in an L-shape, which is mainly used to fix the panel and support the panel load. One end of the panel is welded to the inner wall of the tower 7, and a long waist hole 501 is processed on the side connected to the variable diameter panel assembly 3. The lap length of the variable diameter panel assembly 3 and the panel connection support 5 is adjusted through the long waist hole.

[0042] The design process of the tower platform is as follows:

[0043] Once a wind turbine tower is developed, the range of internal diameter variations for each section of the tower can be determined, as can the type and layout of internal accessories. Based on this, the location and dimensions of other openings on the tower platform, such as cable holes and holes reserved for the hoist system, can also be determined.

[0044] Based on the varying range of the tower's inner diameter, the required adjustment range for the platform's outer diameter was determined. The beam-end support length (L1), the long waist hole length (L3), and the distance (L2) between the main beam assembly and the cylinder wall were then designed. The beam-end support, welded to the tower's inner wall, is the most critical load-bearing connection. Due to its long overhang, its dimensions and form must be determined based on structural calculations to ensure structural safety.

[0045] Based on the required adjustment range of the platform's outer diameter, determine the distance L2 between the main beam and the cylinder wall, and then determine the length of the main beam. The main crossbeam is the longest and is located on both sides of the hoist system reserved hole. It is symmetrical about the centerline of the hoist system reserved hole and its position is determined by the size of the hoist system reserved hole. The main longitudinal beam position is mainly considered to avoid the reserved openings on the panel and is as symmetrical as possible about the platform centerline. The position of the main diagonal beam is determined by the location of the cable hole, and then the length of the main diagonal beam is determined. The position of the main diagonal beam should not interfere with the beam end connection support.

[0046] After clarifying the length of the beam end connection support, the position of the curved secondary beam is then determined. Under the premise of not interfering with the beam end connection support, the curved secondary beam should be arranged as close to the outside as possible to shorten the width of the variable diameter panel and make the force more reasonable.

[0047] The panel connection supports are arranged circumferentially along the inner wall of the tower, and the structural form, location and number are mainly determined according to the force applied to the panel.

[0048] The size of the fixed panel can be determined according to the arrangement position of each beam. According to the needs of the wind turbine generator set, larger openings such as hanging holes and heat dissipation holes are set on the corresponding fixed panel.

[0049] According to the required adjustment range of the platform outer diameter and the design range of the distance a between the panel and the cylinder wall, the number of variable diameter panel groups, the outer diameter D of each group of variable diameter panels and the corresponding tower inner diameter adaptation range are determined.

[0050] Design engineers design the above components as standard parts in advance according to the tower R&D type. In actual engineering projects, design engineers only need to select the corresponding type of tower platform and appropriate variable diameter panel according to the tower type and the inner diameter of the cross-section where the tower platform is located to complete the design work, which can not only improve the design cycle but also reduce errors.

[0051] The tower factory can prepare materials and produce in advance according to the standard parts of the tower platform of different types of towers. There is no need to wait for the full set of project drawings to be completed, and then disassemble and cut materials according to the design drawings of different projects, which greatly shortens the production cycle and reduces the generation of defective products.

[0052] Example 2:

[0053] This embodiment provides a new tower platform with adjustable diameter. The difference between this embodiment and Example 1 is that the tower is a concrete tower, and the beam end connecting supports and the panel connecting supports are connected to the embedded parts on the inner wall of the concrete tower through fasteners.

[0054] The above is only a preferred embodiment of the present utility model patent, but the protection scope of the present utility model patent is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present utility model patent based on the technical solution and the utility model patent concept of the present utility model patent, which falls within the protection scope of the present utility model patent.

Claims

1. A novel tower platform with adjustable diameter, characterized by: It includes a support beam assembly, a central fixed panel assembly, a variable diameter panel assembly, multiple beam end connecting supports and panel connecting supports. The support beam assembly is connected to the inner wall of the tower through multiple beam end connecting supports on all sides. By adjusting the overlap length of the support beam assembly and the beam end connecting supports, the support beam assembly can be installed at positions with different inner diameters inside the tower. The central fixed panel assembly is installed on the support beam assembly through a bolt assembly. A space for installing a variable diameter panel assembly is formed between its four edges and the inner wall of the tower. There are multiple variable diameter panel assemblies, and different variable diameter panel assemblies have the same inner diameter and different outer diameters. The variable diameter panel assembly is selected according to the space size, and the outer edge of the selected variable diameter panel assembly is connected to the inner wall of the tower through multiple panel connecting supports, and its inner edge is connected to the support beam assembly through a bolt assembly. By adjusting the overlap length of the variable diameter panel assembly and the panel connecting supports, the variable diameter panel assembly can be installed at positions with different inner diameters inside the tower.

2. The novel tower platform with adjustable diameter according to claim 1, characterized in that: The variable diameter panel assembly is composed of multiple variable diameter panels of different sizes. The inner edge of each variable diameter panel is connected to the support beam assembly through a bolt assembly, and the outer edge is connected to the inner wall of the tower through a panel connection support. A cable passing hole is provided on the variable diameter panel located directly above the cable inside the tower.

3. The novel tower platform with adjustable diameter according to claim 1, characterized in that: A protective rubber strip is provided between the outer edge of the variable diameter panel assembly and the inner wall of the tower.

4. The novel tower platform with adjustable diameter according to claim 1, characterized in that: The central fixed panel assembly is composed of multiple fixed panels of different sizes. The four sides of each fixed panel are connected to the support beam assembly by bolt assemblies, and a lifting system reserved hole is set on the fixed panel located directly above the lifting system inside the tower.

5. The novel tower platform with adjustable diameter according to claim 1 is characterized in that: The support beam assembly includes a main beam assembly for bearing all loads of the platform and a secondary beam assembly for supporting the central fixed panel assembly and the variable diameter panel assembly. The main beam assembly includes a plurality of main cross beams and main longitudinal beams arranged in a criss-cross pattern, and a main oblique beam is connected between two adjacent main longitudinal beams. The main oblique beam is located next to the cable through-hole of the variable diameter panel assembly and is parallel to the long side of the cable through-hole. The secondary beam assembly includes a plurality of arc-shaped secondary beams, and the plurality of arc-shaped secondary beams are arranged in sequence with the center of the tower as the center of the circle, and the two ends of each arc-shaped secondary beam are respectively connected to the adjacent main cross beam or main longitudinal beam, and the arc-shaped secondary beam is connected to the inner edge of the variable diameter panel by a bolt assembly.

6. The novel tower platform with adjustable diameter according to claim 5, characterized in that: The beams inside the support beam assembly are connected via inter-beam connecting supports.

7. The novel tower platform with adjustable diameter according to claim 5, characterized in that: Each beam inside the support beam assembly is a telescopic steel tube or steel section.

8. The novel tower platform with adjustable diameter according to claim 1, characterized in that: The beam end connecting support is provided with two long waist holes, and the lap length of the support beam assembly and the beam end connecting support is adjusted through the long waist holes.

9. The novel tower platform with adjustable diameter according to claim 1, characterized in that: The panel connection support is L-shaped, one end of which is welded to the inner wall of the tower, and a long waist hole is processed on the side connected to the variable diameter panel assembly, through which the lap length of the variable diameter panel assembly and the panel connection support is adjusted.

10. The novel tower platform with adjustable diameter according to claim 1, characterized in that: The tower is a concrete tower, and embedded parts for connecting with beam end connecting supports and panel connecting supports are pre-buried inside the concrete tower.

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