A fan structure and a platform support seat for stress diffusion thereof

Abstract

The present invention discloses a wind turbine structure and a platform support seat for stress diffusion thereof, which is used for being installed on the inner wall of a tower, and is characterized in that it comprises: a stress diffusion support (1) fixed on the inner wall of the tower, and the stress diffusion support (1) comprises a main body fixedly connected to the tower and a stress diffusion space provided on the main body. By arranging the stress diffusion space on the main body, stress diffusion is facilitated, the effect of stress concentration is reduced, and safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind turbines, and in particular to a wind turbine structure and a stress diffusion platform support seat thereof. Background Art

[0002] Currently, if Figure 1 As shown, in order to support the installation platform inside the tower for placing electrical cabinets, etc., it is necessary to open a hole on the inner wall of the tower, and embed the cylinder 02 into the hole and then weld it to the tower as a whole, and then set up a frame beam 01 on the cylinder 02 to support the installation platform.

[0003] However, the existing cylinder used as a support has the problem of stress concentration, which can easily cause the cylinder to break and cause danger.

[0004] Therefore, how to provide a platform support seat with stress diffusion to avoid stress concentration and improve safety is an urgent problem to be solved by personnel in the technical field. Summary of the invention

[0005] In view of this, the present invention provides a platform support seat with stress diffusion to avoid stress concentration and improve safety. In addition, the present invention also provides a fan structure with the platform support seat with stress diffusion.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stress diffusion platform support base, used for being installed on the inner wall of a tower, comprises:

[0008] A stress diffusion bracket is fixed on the inner wall of the tower, and the stress diffusion bracket comprises a main body fixedly connected to the tower and a stress diffusion space opened on the main body.

[0009] Preferably, in the above-mentioned platform support seat, the main body of the stress diffusion bracket includes:

[0010] Support rods;

[0011] A tilting rod, which is tilted and symmetrically mounted on the support rod, and is distributed along the extension direction of the support rod;

[0012] A connecting rod is provided, wherein the connecting rod connects the adjacent tilting rods, and the stress diffusion space is formed between the connecting rod and the tilting rod.

[0013] Preferably, in the above-mentioned platform support seat, the tilting rods are evenly arranged along the extension direction of the support rods, and the connecting rods are arranged perpendicular to the tilting rods, and the tilting rods and the connecting rods are both arc-shaped rods that can fit with the inner wall of the tower.

[0014] Preferably, in the above-mentioned platform support seat, the main body is a triangular plate, and the stress diffusion space is a through hole opened on the triangular plate.

[0015] Preferably, in the above-mentioned platform support seat, the triangular plate is a triangular piece symmetrical about the center line, the through hole is elliptical, and the long diameter direction of the through hole is parallel to the side of the triangular plate, the through holes are symmetrically arranged along the symmetry line of the triangular plate, and the through holes are evenly set along the direction of the symmetry line of the triangular plate.

[0016] Preferably, in the above-mentioned platform support seat, the through hole is a superellipse and satisfies:

[0017] (x / a) m +(y / b) n =1, where a and b are the semi-diameters of the curve, 0.5 <m,n<4;

[0018] ya×sinα-b×cosα>0; xb×sinα-a×cosα>-h×cotα, where α is the side angle of the triangular plate and h is the height of the triangular plate.

[0019] Preferably, the platform support seat further comprises a pad having a first surface for being attached to and fixed to the inner wall of the tower, the stress diffusion bracket being fixed on a second surface of the pad, the first surface being opposite to the second surface, and the second surface being a plane.

[0020] Preferably, in the above-mentioned platform support seat, the cushion block is a chain plate structure formed by hinged connection of a plurality of hinged parts, and the curvature of the first surface of the cushion block is adjustable.

[0021] Preferably, in the above-mentioned platform support seat, the second surface of the cushion block is a reciprocatingly bent corrugated surface, and a plug-in retractable end plate is provided at the bending part of the corrugation, and the adjacent end plates can extend outward when the cushion block is stretched.

[0022] A wind turbine structure comprises a stress diffusion platform support seat, wherein the platform support seat is any one of the platform support seats described above.

[0023] The present invention provides a stress diffusion platform support seat, comprising a stress diffusion bracket fixed on the inner wall of a tower, and the stress diffusion bracket comprises a main body fixedly connected to the tower and a stress diffusion space provided on the main body. In the present application, by arranging the stress diffusion space on the main body, stress diffusion is facilitated, the effect of stress concentration is reduced, and safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a stress diffusion platform support seat disclosed in the prior art;

[0026] Figure 2 It is a structural schematic diagram of Embodiment 1 of a stress diffusion platform support seat disclosed in an embodiment of the present invention;

[0027] Figure 3 It is a schematic structural diagram of a stress diffusion bracket disclosed in an embodiment of the present invention;

[0028] Figure 4 It is an assembly diagram of the second embodiment of the stress diffusion platform support seat disclosed in the embodiment of the present invention;

[0029] Figure 5 It is a structural schematic diagram of a second embodiment of a stress diffusion platform support seat disclosed in an embodiment of the present invention;

[0030] Figure 6 A condition relationship diagram of a platform support seat for stress diffusion disclosed in an embodiment of the present invention;

[0031] Figure 7 It is a top view of the second embodiment of the stress diffusion platform support seat disclosed in the embodiment of the present invention. DETAILED DESCRIPTION

[0032] The invention discloses a platform support seat with stress diffusion to avoid stress concentration and improve safety. In addition, the invention also discloses a fan structure with the platform support seat with stress diffusion.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-Figure 7As shown, the present application discloses a stress diffusion platform support seat, which is used to be installed on the inner wall of a tower, wherein the platform support seat includes a stress diffusion bracket 1 fixed on the inner wall of the tower, and the stress diffusion bracket 1 includes a main body fixedly connected to the tower and a stress diffusion space opened on the main body. In the present application, by setting the stress diffusion space on the main body, stress diffusion is facilitated, the effect of stress concentration is reduced, and safety is improved.

[0035] In the specific embodiment 1, Figure 2 and Figure 3 As shown, the main body of the stress diffusion bracket 1 includes a support rod 11, a tilting rod 12 and a connecting rod 13. Among them, the support rod 11 is the main structure of the main body of the entire stress diffusion bracket 1. It has the function of supporting the platform and is also the connection basis of the tilting rod 12 and the connecting rod 13. In practice, the cross section of the support rod 11 can be set to a larger rod. The above-mentioned tilting rod 12 is tiltedly installed on the support rod 11. The tilting angle of the tilting rod 12 and the support rod 11 is not limited here. It is necessary to ensure that the tilting rod 12 is symmetrically arranged about the support rod 11 to ensure that the stress diffusion conditions on both sides of the main body are the same. The above-mentioned connecting rod 13 connects adjacent tilting rods 12, and there is a gap between the connecting rods 13, and there is also a gap between the tilting rods 12, so that a stress diffusion solution space is formed between the connecting rod 13 and the tilting rod 12. That is, this embodiment forms a stress diffusion bracket 1 with a stress diffusion function through the assembly position between the structures. The connection method and arrangement position of the tilting rod 12 and the connecting rod 13 can be set according to different needs.

[0036] In a preferred embodiment, the above-mentioned tilting rods 12 are evenly arranged along the extension direction of the support rods 11, and the connecting rods 13 are arranged perpendicular to the tilting rods 12. The arrangement interval of the tilting rods 12 and the installation position of the connecting rods 13 can be selected according to actual needs. The core of this application is to form a diffusion space on the main body of the stress diffusion bracket 1 through a frame structure. Preferably, the entire stress diffusion bracket 1 can form a structure similar to a tree trunk and branches. In order to increase the contact area between the main body and the inner wall of the tower, the tilting rods 12 and the connecting rods 13 can be set as arc-shaped rods that can fit the inner wall of the tower, which can facilitate the installation of the stress diffusion bracket 1.

[0037] In a further embodiment, the stress diffusion bracket 1 is welded to the inner wall of the tower to reduce the hole opening process. By welding the stress diffusion bracket 1 to the inner wall of the tower, the connection stability can be ensured, so that the stress diffusion bracket 1 and the tower form an integrated structure.

[0038] In addition, in the second embodiment, Figure 4-Figure 7As shown, the main body of the stress diffusion bracket 1 can also be set as a triangular plate, and the stress diffusion space can be set as a through hole opened on the triangular plate. It can be understood by those skilled in the art that the shape and size of the main body are not limited here, and the shape and size of the through hole are within the protection range as long as the through hole can realize the platform to diffuse the stress generated by the stress diffusion bracket 1.

[0039] In a specific embodiment, the triangular plate is a triangular piece symmetrical about the center line, and the through hole is elliptical, the long diameter direction of the through hole is parallel to the side of the triangular plate, the through holes are symmetrically arranged along the symmetry line of the triangular plate, and the through holes are evenly arranged along the direction of the symmetry line of the triangular plate. By setting the triangular plate as a symmetrical structure and setting the through holes as a symmetrically arranged structure, it is ensured that the stress diffusion bracket 1 has the same stress dispersion effect at all locations, avoiding stress concentration or high stress at other locations.

[0040] Those skilled in the art will appreciate that the dimensions of the triangular plate and the through hole are not limited in detail herein.

[0041] In a further embodiment, a specific shape of a through hole is disclosed, namely, a superellipse, which needs to meet the following conditions:

[0042] (x / a) m +(y / b) n =1, where a and b are the semi-diameters of the curve, 0.5 <m,n<4;

[0043] ya×sinα-b×cosα>0; xb×sinα-a×cosα>-h×cotα, where α is the side angle of the triangular plate and h is the height of the triangular plate.

[0044] On the basis of the above technical solution, the platform support seat 1 in the present application also includes a cushion block 3, wherein the first surface 31 of the cushion block 3 is used to fit and fix with the inner wall of the tower, and the above stress diffusion bracket 1 is fixed on the second surface 32 of the cushion block 3, the first surface 31 and the second surface 32 of the cushion block 3 are arranged relatively, and the first surface 31 is an arc surface, and the second surface 32 is a plane. By setting the cushion block 3, it can be used as the installation base of the stress diffusion bracket 1 and the transition piece connected to the tower. By setting the second surface 32 of the cushion block 3 as a plane, the contact surface of the triangular plate can be ensured to be large while ensuring the strength of the triangular plate.

[0045] By setting the first surface 31 of the pad 3 as an arc surface so that the pad 3 fits against the inner wall of the tower, the fitting area between the pad 3 and the inside of the tower is guaranteed, and the second surface 32 of the pad 3 is set as a plane to facilitate the installation of the stress diffusion bracket 1, avoid bending of the stress diffusion bracket 1, and ensure the strength of the stress diffusion bracket 1.

[0046] In order to further optimize the above technical solution, the cushion block 3 is set as a chain plate structure formed by hinged joints of multiple hinges, and the curvature of the first surface 31 of the cushion block 3 is adjustable. When the curvature of the first surface 31 needs to be changed, the relative position of the hinge can be adjusted, and the cushion block 3 can be fitted with the inner wall of the tower tube of different sizes by rotating. Through the articulation of the hinge, the overall angle of the chain plate can be changed to adapt to the inner wall of the tower tube of different sizes.

[0047] In practice, the cushion block 3 can also be set as an elastic deformable part, for example, a compressed silicone part. When the inner diameter of the tower to be installed is large, the central angle of the cushion block 3 can be changed by stretching the silicone part to adapt to the corresponding tower.

[0048] In a further embodiment, the second surface 32 of the cushion block 3 in the present application is a reciprocatingly bent corrugated surface, and a plug-in retractable end plate is provided at the bend of the corrugation, and the adjacent end plates can extend outward when the cushion block 3 is stretched. When the first surface 31 of the cushion block 3 is deformed to adapt to towers of different sizes, in order to ensure that the second surface 32 is always flat, it is necessary to make the second surface 32 ductile. The second surface 32 is set as a reciprocatingly bent corrugated surface, and the corrugated surface extends along the circumferential direction of the tower, so that when the cushion block 3 is stretched, the corrugated surface is also stretched; in order to ensure the planarity of the second surface 32, an end plate is provided at the bend of the corrugated surface, and when the corrugated surface is stretched, the sleeved end plate extends outward to adapt to the change of the corrugated surface; when the corrugated surface is squeezed, the end plate extends inward. In order to ensure the planarity of the first surface 31 and the curvature of the second surface 32 , the second surface 32 may be fixedly connected to the first surface 31 at only two ends to avoid the problem of bending of the second surface 32 when the curvature of the first surface 31 changes.

[0049] In addition, the present application also discloses a wind turbine structure, including a stress diffusion platform support seat. Specifically, the foundation of the stress diffusion platform support seat is the stress diffusion platform support seat disclosed in the above embodiment. Therefore, the wind turbine structure with the stress diffusion platform support seat also has all the above-mentioned technical effects, which will not be repeated here one by one.

[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stress diffusion platform support, used for installation on the inner wall of a tower, characterized in that: include: A stress diffusion bracket (1) fixed on the inner wall of the tower, the stress diffusion bracket (1) comprising a main body fixedly connected to the tower and a stress diffusion space provided on the main body; The main body of the stress diffusion support (1) comprises: Support rod (11); An inclined rod (12), the inclined rod (12) being inclined and symmetrically mounted on the support rod (11) with respect to the support rod (11), and the inclined rod (12) being distributed along the extension direction of the support rod (11); A connecting rod (13), wherein the connecting rod (13) connects the adjacent tilting rods (12), and the stress diffusion space is formed between the connecting rod (13) and the tilting rod (12); the tilting rods (12) are evenly arranged along the extension direction of the support rod (11), and the connecting rod (13) is arranged perpendicular to the tilting rod (12), and the tilting rod (12) and the connecting rod (13) are both arc-shaped rods that can fit with the inner wall of the tower; and further comprising a cushion block (3) having a first surface (31) for fitting and fixing with the inner wall of the tower, and the stress diffusion bracket (1) is fixed on a second surface (32) of the cushion block (3), the first surface (31) is opposite to the second surface (32), and the second surface (32) is a plane.

2. The platform support seat according to claim 1, characterized in that: The cushion block (3) is a chain plate structure formed by hingedly assembling a plurality of hinged parts, and the curvature of the first surface (31) of the cushion block (3) is adjustable.

3. The platform support seat according to claim 2, characterized in that: The second surface (32) of the cushion block (3) is a reciprocatingly bent corrugated surface, and a plug-in retractable end plate is provided at the bend of the corrugation, and the adjacent end plates can extend outward when the cushion block (3) is stretched.

4. A fan structure, comprising a stress diffusion platform support, characterized in that: The platform support seat is the platform support seat as described in any one of claims 1-3.

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