Environment-friendly energy wind power blade structure

Abstract

This invention proposes an environmentally friendly wind turbine blade structure, including a blade root, middle blade, tail blade, and blade tip. Connecting components are provided between the blade root and middle blade, between the middle blade and tail blade, and between the tail blade and blade tip. A fixed beam is provided within the blade root, and a first storage compartment is formed within the fixed beam. A first extension beam is inserted into the first storage compartment. The advantages of this invention are: by setting up structures such as the blade root, middle blade, tail blade, blade tip, fixed beam, and first extension beam, the blade root, middle blade, tail blade, and blade tip can be transported separately during wind turbine blade transportation. After pushing the second extension beam into the second storage compartment and the first extension beam into the first storage compartment and fixing them, the fixed beam, first extension beam, and second extension beam can be transported separately. The length of the blade root, middle blade, tail blade, blade tip, and even the retracted beam body is greatly reduced, alleviating the workload of transporting wind turbine blades.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a wind power blade structure for environmentally friendly energy. Background Technology

[0002] Wind turbine blades are the core components of wind turbines that convert wind energy into electrical energy. The blades are shaped like airplane wings; when wind blows, the curved surfaces create airflow speed and pressure differences, generating forward aerodynamic force that drives the blades to rotate. The rotation of the blades then drives the generator rotor, converting mechanical energy into electrical energy.

[0003] In existing technologies, to ensure power generation efficiency, wind turbine blades generally have a relatively long length; the blade length of a 1.5MW wind turbine is approximately 40-55 meters, and the blade length of a 2-3MW wind turbine is approximately 55-65 meters. Furthermore, wind turbine blades typically employ a single-piece structure, making transportation difficult. Therefore, this paper proposes an improved structure for environmentally friendly wind power generation blades. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose an environmentally friendly wind power generation blade structure to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides an environmentally friendly wind power blade structure, including a blade root, a middle blade, a tail blade, and a blade tip. Connecting components are provided between the blade root and the middle blade, between the middle blade and the tail blade, and between the tail blade and the blade tip. A fixed beam is provided within the blade root, and a first storage compartment is formed within the fixed beam. A first extension beam is inserted into the first storage compartment, and a first limiting block is fixedly connected to the inner end of the first extension beam. A second storage compartment is formed within the first extension beam, and a second extension beam is inserted into the second storage compartment. A second limiting block is fixedly connected to the inner end of the second extension beam. Connecting rings are fixedly connected to the outer sides of the ends of the fixed beam, the first extension beam, and the second extension beam. Mounting grooves are formed at the inner ends of the first and second extension beams, and connecting plates are provided within the mounting grooves. Several connecting seats are provided on the middle blade and the tail blade, and connecting rods are provided between the connecting seats and the corresponding connecting plates and connecting rings.

[0007] Preferably, in any of the above solutions, the connecting component is disposed on the inner side of the leaf root, middle leaf, tail leaf, and leaf tip.

[0008] The above technical solution employs a blade root, middle blade, tail blade, and blade tip to collectively constitute the main structure of the wind turbine blade. The blade root is responsible for connecting to the hub, and its end should be equipped with a connecting structure. The middle blade, tail blade, and blade tip are designed according to specific principles to capture wind energy. Their specific structures can refer to existing technologies, and this application does not impose special requirements. A connecting assembly is used to connect them together to form the entire wind turbine blade. The connecting assembly is located on the inner side to avoid affecting the overall shape of the wind turbine blade.

[0009] Preferably, in any of the above embodiments, the connecting assembly includes a ring plate fixedly connected to the blade root, middle blade, tail blade, and blade tip, and a plurality of bolts locking adjacent ring plates.

[0010] The above technical solution utilizes a ring plate and bolts to connect the various components, ensuring readily available materials and stable connections. Several bolts lock the ring plate at different positions, guaranteeing connection stability at all points. Due to the large size of the wind turbine blades, workers can perform connection work inside the blades, ensuring connection strength.

[0011] Preferably, one end of the fixed beam protrudes from the leaf root, and several tie rods are provided between the fixed beam and the leaf root.

[0012] The above technical solution employs a fixed beam, along with first and second extension beams, to reinforce the wind turbine blades and, in conjunction with related components, to connect the middle and tail blades. One end of the fixed beam protrudes beyond the blade root, facilitating its connection to the wind turbine hub. It should be noted that a corresponding connection area should be provided on the wind turbine hub to ensure that the blade root can still be connected when the fixed beam is attached. Several tie rods are installed between the fixed beam and the blade root, forming a unified structure to ensure the strength of the blade root.

[0013] Preferably, in any of the above schemes, the length of the first extension beam is greater than the length of the middle leaf, and the length of the fixed beam is greater than the length of the leaf root.

[0014] The above technical solution employs the following: the first and second extension beams are used to connect the middle and tail blades in conjunction with relevant components, ensuring the overall strength of the wind turbine blades. Controlling the length of the fixed beam provides the conditions for connecting the fixed beam to the middle blade, and controlling the length of the first extension beam provides the conditions for connecting the first extension beam to the tail blade.

[0015] Preferably, in any of the above schemes, several connecting rings are arranged on the outer sides of both the first and second extension beams, and several sets of mounting grooves and connecting plates are arranged on the second extension beam.

[0016] The above technical solution employs a combination of connecting rings and connecting plates to mate with connecting rods and connecting seats, enabling the first and second extension beams to connect the middle and tail blades. The evenly distributed arrangement of several connecting rings and connecting plates facilitates multi-directional connections and enhances connection strength.

[0017] Preferably, in any of the above embodiments, the connecting seat is disposed on the inner wall of the middle blade and the tail blade, and the connecting rod is fixedly connected to the connecting plate and the connecting ring by bolts.

[0018] The above technical solution provides installation conditions for the connecting rod. The connecting seat is set on the inner wall of the middle blade and the tail blade. Similarly, it does not affect the external shape of the middle blade and the tail blade, making it convenient for the two to capture wind energy.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. This environmentally friendly wind turbine blade structure, through the inclusion of a blade root, middle blade, tail blade, blade tip, fixed beam, first extension beam, and second extension beam, allows for the separate transport of the blade root, middle blade, tail blade, and blade tip during blade transport. After the second extension beam is pushed into the second storage compartment and the first extension beam into the first storage compartment and secured, the fixed beam, first extension beam, and second extension beam can be transported separately. The length of the blade root, middle blade, tail blade, blade tip, and even the retracted beam body is significantly reduced, alleviating the workload associated with transporting the wind turbine blades.

[0020] 2. The wind turbine blade structure for this environmentally friendly energy source features connecting components located on the inner side, preventing them from affecting the overall shape of the turbine blades. The connecting seats are located on the inner walls of the middle and tail blades, similarly not affecting their external shape and facilitating wind energy capture. Several tie rods are installed between the fixed beam and the blade root, forming a unified structure and ensuring the strength of the blade root. Numerous connecting rings and plates are evenly distributed, providing conditions for multi-directional connections and improving connection strength.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3This is a partial three-dimensional structural schematic diagram of the present invention; Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1-Leaf root, 2-Middle leaf, 3-Tail leaf, 4-Leaf tip, 5-Connecting component, 6-Fixing beam, 7-First storage compartment, 8-First extension beam, 9-First limiting block, 10-Second storage compartment, 11-Second extension beam, 12-Second limiting block, 13-Connecting ring, 14-Mounting groove, 15-Connecting plate, 16-Connecting seat, 17-Connecting rod. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-4 As shown, this utility model includes a leaf root 1, a middle leaf 2, a tail leaf 3, and a leaf tip 4. Connecting components 5 are provided between the leaf root 1 and the middle leaf 2, between the middle leaf 2 and the tail leaf 3, and between the tail leaf 3 and the leaf tip 4. A fixing beam 6 is provided inside the leaf root 1. A first storage compartment 7 is formed inside the fixing beam 6. A first extension beam 8 is inserted into the first storage compartment 7. A first limiting block 9 is fixedly connected to the inner end of the first extension beam 8. A second storage compartment 10 is formed inside the first extension beam 8. A [missing information - likely a component or part] is inserted into the second storage compartment 10. The second extension beam 11 has a second limiting block 12 fixedly connected to its inner end. The outer sides of the ends of the fixed beam 6, the first extension beam 8, and the second extension beam 11 are all fixedly connected to connecting rings 13. The inner ends of the first extension beam 8 and the second extension beam 11 are provided with mounting grooves 14, and connecting plates 15 are provided in the mounting grooves 14. Several connecting seats 16 are provided on the middle leaf 2 and the tail leaf 3. Connecting rods 17 are provided between the connecting seats 16 and the corresponding connecting plates 15 and connecting rings 13.

[0027] Example 1: The connecting component 5 is located on the inner side of the blade root 1, middle blade 2, tail blade 3, and blade tip 4. The blade root 1, middle blade 2, tail blade 3, and blade tip 4 together constitute the main structure of the wind turbine blade. The blade root 1 is responsible for connecting to the hub, and its end should be equipped with a connecting structure. The middle blade 2, tail blade 3, and blade tip 4 are designed according to specific principles to capture wind energy. Their specific structures can refer to existing technologies, and this application does not make special requirements. The connecting component 5 is used to connect them together to form the entire wind turbine blade. The connecting component 5 is located on the inner side to avoid affecting the overall shape of the wind turbine blade. The connecting component 5 includes a ring plate fixedly connected to the blade root 1, middle blade 2, tail blade 3, and blade tip 4, and several bolts locking adjacent ring plates. Using ring plates and bolts to connect the components is convenient in terms of material availability and provides stable connections. Several bolts lock the ring plates from different positions to ensure the stability of the connection at each point. Due to the large size of the wind turbine blade, workers can perform the connection work inside the blade to ensure the connection strength.

[0028] Example 2: One end of the fixed beam 6 protrudes from the blade root 1, and several tie rods are installed between the fixed beam 6 and the blade root 1. The fixed beam 6, together with the first extension beam 8 and the second extension beam 11, reinforces the wind turbine blades and, together with related components, connects the middle blade 2 and the tail blade 3. The protrusion of one end of the fixed beam 6 from the blade root 1 facilitates its connection to the wind turbine hub. It should be noted that a corresponding connection area should be provided on the wind turbine hub to ensure that the blade root 1 can still be connected when connecting the fixed beam 6. Several tie rods are installed between the fixed beam 6 and the blade root 1, forming a whole and ensuring the strength of the blade root 1. The length of the first extension beam 8 is greater than the length of the middle blade 2, and the length of the fixed beam 6 is greater than the length of the blade root 1. The first extension beam 8 and the second extension beam 11 are used to connect the middle blade 2 and the tail blade 3 together with related components, ensuring the overall strength of the wind turbine blades. By controlling the length of the fixed beam 6, conditions are provided for the connection between the fixed beam 6 and the middle leaf 2; by controlling the length of the first extension beam 8, conditions are provided for the connection between the first extension beam 8 and the tail leaf 3.

[0029] Example 3: Several connecting rings 13 are arranged on the outer sides of the first extension beam 8 and the second extension beam 11, and several sets of mounting grooves 14 and connecting plates 15 are arranged on the second extension beam 11. The connecting rings 13 and connecting plates 15 are used to connect the connecting rod 17 and the connecting seat 16, so that the middle blade 2 and the tail blade 3 can be connected using the first extension beam 8 and the second extension beam 11. The evenly distributed arrangement of several connecting rings 13 and connecting plates 15 provides conditions for multi-directional connection and helps to improve the strength of the connection. The connecting seat 16 is set on the inner wall of the middle blade 2 and the tail blade 3, and the connecting rod 17 is fixedly connected to the connecting plate 15 and connecting rings 13 by bolts. The connecting seat 16 provides installation conditions for the connecting rod 17. The connecting seat 16 is set on the inner wall of the middle blade 2 and the tail blade 3, and similarly, it does not affect the external shape of the middle blade 2 and the tail blade 3, facilitating their capture of wind energy.

[0030] The working principle of this utility model is as follows: S1. When transporting wind turbine blades, the blade root 1, middle blade 2, tail blade 3, and blade tip 4 can be transported separately. S2. After the second extension beam 11 is pushed into the second storage compartment 10 and the first extension beam 8 is pushed into the first storage compartment 7 and fixed, the fixed beam 6, the first extension beam 8 and the second extension beam 11 are transported separately. S3. During assembly, the blade root 1, middle blade 2, tail blade 3, and blade tip 4 are connected using the connecting component 5. The first extension beam 8 and the second extension beam 11 are fully pulled out, and then the connecting ring 13, connecting plate 15, connecting rod 17, and connecting seat 16 are used to connect them, thus completing the assembly of the wind turbine blades.

[0031] Compared with the prior art, the present invention has the following advantages: 1. The structure of this environmentally friendly wind turbine blade, through the inclusion of a blade root 1, middle blade 2, tail blade 3, blade tip 4, fixed beam 6, first extension beam 8, and second extension beam 11, allows for the separate transport of the blade root 1, middle blade 2, tail blade 3, and blade tip 4. After the second extension beam 11 is pushed into the second storage compartment 10 and the first extension beam 8 is pushed into the first storage compartment 7 and secured, the fixed beam 6, first extension beam 8, and second extension beam 11 can be transported separately. The length of the blade root 1, middle blade 2, tail blade 3, blade tip 4, and the retracted beam body are all significantly reduced, alleviating the workload of transporting the wind turbine blade.

[0032] 2. In this environmentally friendly wind turbine blade structure, the connecting component 5 is located on the inner side, which avoids affecting the overall shape of the wind turbine blade. The connecting seat 16 is located on the inner wall of the middle blade 2 and the tail blade 3, which similarly does not affect the external shape of the middle blade 2 and the tail blade 3, facilitating their capture of wind energy. Several tie rods are installed between the fixed beam 6 and the blade root 1, which form a whole and ensure the strength of the blade root 1. Several connecting rings 13 and connecting plates 15 are evenly arranged to provide conditions for multi-directional connection and improve the strength of the connection.

Claims

1. An environmentally friendly energy wind power blade structure, comprising a blade root (1), a middle blade (2), a tail blade (3), and a blade tip (4); characterized in that, A connecting component (5) is provided between the leaf root (1) and the middle leaf (2), between the middle leaf (2) and the tail leaf (3), and between the tail leaf (3) and the leaf tip (4). A fixed beam (6) is provided inside the leaf root (1). A first storage compartment (7) is opened inside the fixed beam (6). A first extension beam (8) is inserted into the first storage compartment (7). A first limiting block (9) is fixedly connected to the inner end of the first extension beam (8). A second storage compartment (10) is opened inside the first extension beam (8). A second extension beam (11) is inserted into the second storage compartment (10). A second limiting block (12) is fixedly connected to the inner end of the second extension beam (11). A connecting ring (13) is fixedly connected to the outer side of the ends of the fixed beam (6), the first extension beam (8), and the second extension beam (11). An installation groove (14) is opened at the inner end of the first extension beam (8) and the second extension beam (11). A connecting plate (15) is provided in the installation groove (14). Several connecting seats (16) are provided on the middle leaf (2) and the tail leaf (3). A connecting rod (17) is provided between the connecting seat (16) and the corresponding connecting plate (15) and connecting ring (13).

2. The wind power blade structure for environmental-friendly energy sources according to claim 1, characterized in that: The connecting component (5) is disposed on the inner side of the leaf root (1), middle leaf (2), tail leaf (3), and leaf tip (4).

3. The wind power blade structure for environmental-friendly energy sources of claim 2, wherein: The connecting assembly (5) includes a ring plate fixedly connected to the leaf root (1), middle leaf (2), tail leaf (3), and leaf tip (4) and several bolts locking adjacent ring plates.

4. The wind power blade structure for environmental-friendly energy sources of claim 3, wherein: One end of the fixed beam (6) protrudes from the leaf root (1), and several tie rods are provided between the fixed beam (6) and the leaf root (1).

5. The wind power blade structure for environmental-friendly energy sources as claimed in claim 4, wherein: The length of the first extension beam (8) is greater than the length of the middle leaf (2), and the length of the fixed beam (6) is greater than the length of the leaf root (1).

6. The wind power blade structure for environmental-friendly energy sources as claimed in claim 5, wherein: Several connecting rings (13) are arranged on the outside of the first extension beam (8) and the second extension beam (11), and several sets of mounting grooves (14) and connecting plates (15) are arranged on the second extension beam (11).

7. The wind power blade structure for environmental-friendly energy sources as claimed in claim 6, wherein: The connecting seat (16) is set on the inner wall of the middle blade (2) and the tail blade (3), and the connecting rod (17) is fixedly connected to the connecting plate (15) and the connecting ring (13) by bolts.

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