A land-based wind turbine blade quick dismounting structure

Abstract

This utility model discloses a quick-assembly and disassembly structure for onshore wind turbine blades, relating to the field of wind power generation technology. It includes a support base, with a mounting frame fixed to the outer side of the support base. Multiple sets of fixing rods are mounted on the outer side of the mounting frame. A sliding rod for adjusting the blade installation length is slidably connected to the inner wall of each fixing rod. A fixing sleeve is fixed to the outer side of each fixing rod. The advantages of this utility model are: by pulling the sliding rod within the fixing rod, and cooperating with the first bolt and threaded hole, the blade installation length can be flexibly adjusted to meet the needs of different blade specifications. The cooperation between the guide plate and guide block, and the support rod and sliding rod, ensures smooth and accurate sliding of the sliding rod, enhancing structural stability and preventing deformation and jamming. The insertion of the limiting block and limiting groove achieves precise blade docking, ensuring overall structural stability and facilitating assembly, disassembly, and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a quick assembly and disassembly structure for onshore wind turbine blades. Background Technology

[0002] A wind turbine is a distributed power generation device that converts wind energy into electrical energy. It is mainly used in rural areas, pastoral areas, mountainous areas and remote areas without electricity to meet the power needs of households, farms, communication base stations and other scenarios. The core principle is to capture wind energy through wind turbine blades, drive the generator to rotate and generate electricity, and then convert the unstable wind power into stable AC power for users through devices such as controllers, batteries and inverters.

[0003] When installing existing wind turbine blades, the blades are usually a one-piece structure. It is impossible to assemble the blades during installation. When replacing the blades, the entire blade needs to be replaced. This not only affects the efficiency of blade disassembly but also increases maintenance costs. Furthermore, the fixed installation position of the blades makes it impossible to adjust the blade installation position according to different scenarios. The fixed installation position will place the blades in areas with low wind speed or unstable wind direction, which will not be able to effectively utilize wind energy. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A quick-release and detachment structure for onshore wind turbine blades includes a support base, an mounting bracket fixed to the outer side of the support base, multiple sets of fixing rods mounted on the outer side of the mounting bracket, a sliding rod for adjusting the blade installation length slidably connected to the inner wall of the fixing rod, a fixing sleeve fixed to the outer side of the fixing rod, a first bolt threadedly connected to the inner wall of the fixing sleeve, multiple sets of threaded holes for cooperating with the first bolt in the inner cavity of the sliding rod, and an installation component for installing the blade at one end of the sliding rod.

[0007] The mounting assembly includes a first mounting block fixed to one end of the slide bar. Two sets of blades are mounted on one side of the first mounting block, arranged symmetrically in the upper and lower positions. A limit block is fixed to one end of each set of blades. A limit groove is provided in the inner cavity of each set of blades, and the inner wall of the limit groove is inserted into the outer side of the limit block.

[0008] As a preferred embodiment of the quick-assembly and disassembly structure for onshore wind turbine blades of the present invention, wherein: a second mounting block is provided on the outer side of the blade, and the blade is located between the first mounting block and the second mounting block; two sets of second bolts are threadedly connected to the inner wall of the second mounting block, and the first mounting block and the second mounting block are fixed by the second bolts.

[0009] As a preferred embodiment of the quick assembly and disassembly structure for onshore wind turbine blades described in this utility model, the inner cavities of both sets of blades are provided with mounting grooves, and the outer side of the second bolt is threadedly connected to the inner wall of the mounting groove and penetrates the inner wall of the limiting block.

[0010] As a preferred embodiment of the quick-assembly and disassembly structure for onshore wind turbine blades described in this utility model, the bottom of the support base is fixed with an installation plate, and the inner cavity of the installation plate has multiple sets of installation holes.

[0011] As a preferred embodiment of the quick assembly and disassembly structure for onshore wind turbine blades described in this utility model, one end of the fixing rod is fixed with a fixing block, and the inner wall of the mounting frame is threaded with two sets of third bolts, and the fixing block is fixed to the mounting frame by the third bolts.

[0012] As a preferred embodiment of the quick assembly and disassembly structure for onshore wind turbine blades described in this utility model, a guide block is fixed to the outer side of the fixing sleeve, and two sets of guide plates are fixed to the outer side of the sliding rod, with the outer side of the guide plate slidably connected to the inner wall of the guide block.

[0013] As a preferred embodiment of the quick assembly and disassembly structure for onshore wind turbine blades described in this utility model, a support rod is fixed to the inner wall of the fixing rod, and the outer side of the support rod is slidably connected to the inner wall of the sliding rod.

[0014] In summary, this utility model has the following beneficial effects: by pulling the slide rod to slide within the fixed rod, and cooperating with the first bolt and threaded hole, the blade installation length can be flexibly adjusted to meet the needs of different blade specifications. Through the cooperation of the guide plate and guide block, and the support rod and slide rod, the slide rod is ensured to slide smoothly and accurately, enhancing structural stability and preventing deformation and jamming. Through the insertion of the limiting block and the limiting groove, the blade is precisely connected, ensuring the overall structural stability and facilitating assembly, disassembly, and maintenance. The setting of the second mounting block, the second bolt, and the mounting groove tightly fixes the first mounting block and the blade, achieving reliable installation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is an overall structural diagram of a rapid assembly and disassembly structure for onshore wind turbine blades.

[0017] Figure 2 This is a schematic diagram of the mounting bracket in this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the fixing rod in this utility model.

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0020] Figure 5 for Figure 3 A magnified structural diagram at point B in the middle.

[0021] The following are the labeling elements in the diagram: 1. Support base; 2. Mounting bracket; 3. Fixing rod; 4. Slide rod; 5. Fixing sleeve; 6. First bolt; 7. Threaded hole; 8. Mounting assembly; 81. First mounting block; 82. Blade; 83. Limiting block; 84. Limiting groove; 9. Second mounting block; 10. Second bolt; 11. Mounting groove; 12. Mounting plate; 13. Mounting hole; 14. Fixing block; 15. Third bolt; 16. Guide block; 17. Guide plate; 18. Support rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1:

[0026] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a quick-release and assembly structure for onshore wind turbine blades, including a support base 1, an mounting bracket 2 fixed on the outer side of the support base 1, multiple sets of fixing rods 3 mounted on the outer side of the mounting bracket 2, a sliding rod 4 for adjusting the blade installation length slidably connected to the inner wall of the fixing rod 3, a fixing sleeve 5 fixed on the outer side of the fixing rod 3, a first bolt 6 threadedly connected to the inner wall of the fixing sleeve 5, multiple sets of threaded holes 7 for cooperating with the first bolt 6 in the inner cavity of the sliding rod 4, and an installation component 8 for installing the blade at one end of the sliding rod 4.

[0027] The mounting bracket 2 fixes the fixing rod 3 to the support base 1 according to a certain layout and angle, providing structural support for the subsequent blade installation. Pulling the sliding rod 4 to slide inside the fixing rod 3, the installation position of the blade can be changed by adjusting the extension length of the sliding rod 4, thereby adapting to the installation requirements of blades of different specifications and realizing flexible adjustment of the blade installation length. This allows the blade to be placed in a position with more suitable wind speed and wind direction. The first bolt 6 and the threaded hole 7 serve to fix the sliding rod 4, ensuring that the sliding rod 4 can be stably fixed on the fixing rod 3 after being adjusted to the appropriate position, ensuring the reliability of the blade installation. The mounting component 8 is used for the specific installation of the blade and is a key part for realizing the rapid installation and removal of the blade.

[0028] The mounting assembly 8 includes a first mounting block 81 fixed to one end of the slide bar 4. Two sets of blades 82 are mounted on one side of the first mounting block 81, arranged symmetrically. One end of each set of blades 82 is fixed with a limit block 83. The inner cavity of each set of blades 82 is provided with a limit groove 84, and the inner wall of the limit groove 84 is inserted into the outer side of the limit block 83.

[0029] The blade 82 is the main body of the wind turbine blade. The limiting block 83 of one set of blades 82 is inserted into the limiting groove 84 of another blade 82 to limit and position it, ensuring that the two sets of blades 82 can be accurately connected during installation, ensuring the overall structural stability of the blades, thus facilitating the assembly of the two sets of blades 82, and making it convenient for subsequent disassembly and maintenance of the blades 82. In addition, the cooperation between the limiting block 83 and the limiting groove 84 can withstand a certain amount of shear force and torque, preventing relative misalignment of the blades 82 during use.

[0030] Example 2:

[0031] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0032] Specifically, a second mounting block 9 is provided on the outer side of the blade 82, and the blade 82 is located between the first mounting block 81 and the second mounting block 9. Two sets of second bolts 10 are threadedly connected to the inner wall of the second mounting block 9, and the first mounting block 81 and the second mounting block 9 are fixed by the second bolts 10.

[0033] The first mounting block 81, the blade 82, and the second mounting block 9 are tightly fixed together by the second bolt 10, so as to achieve reliable installation and fixation of the blade.

[0034] Specifically, the inner cavities of both sets of blades 82 are provided with mounting grooves 11, and the outer side of the second bolt 10 is threaded to the inner wall of the mounting groove 11 and passes through the inner wall of the limiting block 83.

[0035] The mounting slot 11 provides space for the installation and fixing of the second bolt 10, allowing the second bolt 10 to pass smoothly through the blade 82 and connect with the first mounting block 81 and the second mounting block 9, thereby fixing the blade.

[0036] Example 3:

[0037] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0038] Specifically, a mounting plate 12 is fixed to the bottom of the support base 1, and multiple sets of mounting holes 13 are opened in the inner cavity of the mounting plate 12.

[0039] The mounting plate 12 is used to install the entire blade quick-release structure onto the main shaft or other support components of the wind turbine generator. The mounting plate 12 can be fixed with bolts or other connectors through the mounting holes 13 to achieve the overall installation of the structure.

[0040] Specifically, a fixing block 14 is fixed to one end of the fixing rod 3, and two sets of third bolts 15 are threadedly connected to the inner wall of the mounting bracket 2, and the fixing block 14 and the mounting bracket 2 are fixed by the third bolts 15.

[0041] The fixing block 14 is fixed inside the mounting bracket 2 by the third bolt 15, thereby firmly fixing the fixing rod 3 to the mounting bracket 2, preventing the fixing rod 3 from loosening or falling off during use, and ensuring the stability of the entire structure.

[0042] Specifically, a guide block 16 is fixed to the outside of the fixed sleeve 5, and two sets of guide plates 17 are fixed to the outside of the slide rod 4, with the outside of the guide plate 17 slidably connected to the inner wall of the guide block 16.

[0043] The slide rod 4 moves the guide plate 17 to slide on the inner wall of the guide block 16, ensuring that the slide rod 4 can move along a fixed direction during the sliding process, preventing the slide rod 4 from deviating or getting stuck, and ensuring the smoothness and accuracy of the slide rod 4.

[0044] Specifically, a support rod 18 is fixed to the inner wall of the fixed rod 3, and the outer side of the support rod 18 is slidably connected to the inner wall of the slide rod 4.

[0045] The sliding rod 4 moves and slides on the outside of the support rod 18. The support rod 18 provides additional support for the sliding rod 4, enhancing the stability of the sliding rod 4 during the sliding process, preventing the sliding rod 4 from deforming or bending under force, and ensuring the normal sliding of the sliding rod 4 and the reliable installation of the blade.

[0046] In use, the entire structure is installed onto the main shaft or other support components of the wind turbine generator set using bolts and other connectors via the mounting plate 12 at the bottom of the support base 1 and the multiple sets of mounting holes 13 on it, achieving overall positioning and fixation of the structure. The fixing rod 3 is securely fixed to the mounting frame 2 using the third bolt 15 to prevent loosening or detachment during use, ensuring structural stability. Pulling the slide rod 4 to slide within the fixing rod 3 causes the guide plate 17 to slide against the inner wall of the guide block 16, ensuring the sliding direction of the slide rod 4 is fixed and preventing offset or jamming. Simultaneously, the slide rod 4 slides outside the support rod 18, enhancing the sliding stability of the slide rod 4. To prevent deformation and bending of the slide rod 4, after adjusting the slide rod 4 to a suitable length, rotate the first bolt 6 on the inner wall of the fixing sleeve 5 so that it is inserted into the threaded hole 7 at the corresponding position in the inner cavity of the slide rod 4, and fix the slide rod 4. Insert the limiting block 83 at one end of a set of blades 82 into the limiting groove 84 in the inner cavity of another blade 82 to achieve limiting positioning and accurate docking. Pass the second bolt 10 through the inner wall of the second mounting block 9, the mounting groove 11 in the inner cavity of the blade 82, and through the inner wall of the limiting block 83, and thread it to the first mounting block 81 to fix the three tightly, complete the blade installation, and facilitate the subsequent disassembly and replacement of the two sets of blades 82.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-assembly and disassembly structure for onshore wind turbine blades, comprising a support base (1), characterized in that: The support base (1) is fixed with a mounting bracket (2) on the outside. Multiple sets of fixing rods (3) are installed on the outside of the mounting bracket (2). A sliding rod (4) for adjusting the installation length of the blade is slidably connected to the inner wall of the fixing rod (3). A fixing sleeve (5) is fixed on the outside of the fixing rod (3). A first bolt (6) is threadedly connected to the inner wall of the fixing sleeve (5). Multiple sets of threaded holes (7) for cooperating with the first bolt (6) are opened in the inner cavity of the sliding rod (4). An installation component (8) for installing the blade is provided at one end of the sliding rod (4). The mounting assembly (8) includes a first mounting block (81) fixed to one end of the slide bar (4). Two sets of blades (82) are mounted on one side of the first mounting block (81) and arranged symmetrically. One end of each set of blades (82) is fixed with a limiting block (83). The inner cavity of each set of blades (82) is provided with a limiting groove (84), and the inner wall of the limiting groove (84) is inserted into the outer side of the limiting block (83).

2. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: The blade (82) is provided with a second mounting block (9) on its outer side, and the blade (82) is located between the first mounting block (81) and the second mounting block (9). The inner wall of the second mounting block (9) is threaded with two sets of second bolts (10), and the first mounting block (81) and the second mounting block (9) are fixed by the second bolts (10).

3. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: The inner cavities of both sets of blades (82) are provided with mounting grooves (11), and the outer side of the second bolt (10) is threaded to the inner wall of the mounting groove (11) and passes through the inner wall of the limiting block (83).

4. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: The bottom of the support base (1) is fixed with a mounting plate (12), and the inner cavity of the mounting plate (12) has multiple sets of mounting holes (13).

5. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: One end of the fixing rod (3) is fixed with a fixing block (14), and the inner wall of the mounting frame (2) is threaded with two sets of third bolts (15), and the fixing block (14) and the mounting frame (2) are fixed by the third bolts (15).

6. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: The outer side of the fixed sleeve (5) is fixed with a guide block (16), and the outer side of the slide rod (4) is fixed with two sets of guide plates (17), and the outer side of the guide plate (17) is slidably connected to the inner wall of the guide block (16).

7. The quick-assembly and disassembly structure for onshore wind turbine blades as described in claim 1, characterized in that: The inner wall of the fixed rod (3) is fixed with a support rod (18), and the outer side of the support rod (18) is slidably connected to the inner wall of the slide rod (4).

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