Fixing structure for wind turbine generator blade installation

Abstract

The utility model discloses a fixing structure for wind turbine generator blade installation, and relates to the technical field of wind turbine generator blade installation. The impeller comprises a hub, a plurality of blades are arranged on the outer side of the hub, the impeller further comprises an installation part, the installation part is installed in the hub, and the installation part is used for being in butt joint and fixed with the blades. And a butt joint part. According to the utility model, the positioning assembly is arranged, specifically, the butt joint ring on the blade is in butt joint with the hub, and the positioning block is inserted into the slot in the mounting ring, so that the positioning effect is achieved, the threaded shaft can be smoothly aligned with the insertion hole I, the threaded rod II is inserted into the insertion hole II in the fixing block, and then the nut is mounted on the threaded rod II; and the nut is rotated to make contact with the fixing block, the blade is pulled through continuous rotation, so that the threaded shaft is rapidly inserted into the first insertion hole, and the locking nut is used for installation and fixation, in this way, frequent adjustment of workers can be reduced, and the installation efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade installation technology, and in particular relates to a fixing structure for wind turbine blade installation. Background Technology

[0002] Wind turbine blades are the core components of wind turbines. Their main function is to convert wind energy into mechanical energy. The performance of the blades directly affects the power generation efficiency, stability, and service life of the wind turbine.

[0003] Traditionally, wind turbine blades are installed by using a crane to lift them up, then aligning them with the hub and securing them with bolts. However, during the alignment process, the blades are suspended and prone to swaying. Furthermore, the large number of bolts makes it difficult to quickly align the blades with the hub, requiring frequent adjustments by workers to ensure the bolts are aligned with the holes, resulting in low installation efficiency. Therefore, we propose a fixing structure for wind turbine blade installation. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing structure for installing wind turbine blades. By setting a positioning component, specifically, the docking ring on the blade is docked with the hub, and the positioning block is inserted into the slot on the mounting ring, thereby playing a positioning role. This allows the threaded shaft to be smoothly aligned with the insertion hole, reducing the need for frequent adjustments by workers and improving installation efficiency. It solves the problem that existing blades have a certain degree of wobbling during installation, making it difficult to quickly dock with the hub and requiring frequent adjustments by workers.

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

[0006] This utility model relates to a fixing structure for mounting wind turbine blades, including a hub, with a plurality of blades disposed on the outer side of the hub, and further including:

[0007] The mounting part is installed inside the hub and is used to dock and fix with the blade;

[0008] A docking part is installed at the end of the blade and is used for positioning the blade and hub during installation.

[0009] The blade is connected to the mounting part inside the hub via a docking part, and the docking part is used for quick docking during blade installation.

[0010] Furthermore, the mounting portion includes a mounting ring that is fixedly connected inside the wheel hub;

[0011] A reinforcement assembly is installed at the top and bottom of the mounting ring, and the reinforcement assembly is used to reinforce the blade after installation;

[0012] The mounting ring has several insertion holes and two slots inside. The insertion holes and slots are used to position and align the blade with the mating part on the blade during installation.

[0013] Furthermore, the docking part includes a docking ring fixedly connected to the end of the blade, and a plurality of threaded shafts are fixedly connected to the side of the docking ring away from the blade; the docking ring is fixed to the blade by welding, and the docking ring can fit better after the blade is docked with the hub; the threaded shafts are installed on the docking ring by welding.

[0014] A positioning component is installed at the end of the blade and is used for positioning.

[0015] When the blade is docked with the hub, the positioning component and the mounting ring are docked. The positioning component is used to align the threaded shaft and the insertion hole.

[0016] Furthermore, the positioning assembly includes two positioning blocks fixedly connected to the blade end. A connecting block is fixedly connected to the surface of the positioning block on the left side, and a threaded rod II is fixedly connected to the side of the connecting block facing the hub. The positioning block is installed on the blade by welding, the connecting block is installed on the positioning block by welding, and the threaded rod II is installed on the connecting block by welding.

[0017] The positioning block is adapted to the shape of the slot, and the positioning block is inserted into the slot on the mounting ring.

[0018] Furthermore, a fixing block is fixedly connected to the left side of the inner ring of the mounting ring, and the fixing block has a second insertion hole inside; the fixing block is fixed to the inner side of the mounting ring by welding.

[0019] The threaded rod two is inserted into the insertion hole two. After the threaded rod two is inserted into the insertion hole two, a nut is installed on the threaded rod two. By rotating the nut, it contacts the fixing block and is used to pull the blade.

[0020] Furthermore, the reinforcement assembly includes two arc-shaped fixing plates fixedly connected to the surface of the mounting ring. A threaded rod is threadedly connected inside the arc-shaped fixing plate. A handle is fixedly connected to the side of the threaded rod away from the mating ring. A plug is rotatably connected to the side of the handle facing the mating ring.

[0021] The inner ring of the docking ring has two slots, and the insert is arc-shaped and its shape matches the slots. After the insert enters the slot, it reinforces and locks the docking ring in place.

[0022] Furthermore, a limiting rod is fixedly connected to the side of the insert block facing the arc-shaped fixing plate, and the limiting rod slides through the arc-shaped fixing plate and extends to the outside;

[0023] The limiting rod is used to limit the position of the insertion block. When the insertion block moves, it drives the limiting rod to move together, so that the insertion block moves in a straight line.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model uses a positioning component, specifically, to align the mating ring on the blade with the hub and insert the positioning block into the slot on the mounting ring, thereby achieving a positioning function. This allows the threaded shaft to be smoothly aligned with the first insertion hole, and the second threaded rod will be inserted into the second insertion hole on the fixing block. A nut is then installed on the second threaded rod, and the nut is rotated to make it contact the fixing block. Through continuous rotation, the blade is pulled, thereby quickly inserting the threaded shaft into the first insertion hole and securing it with a locking nut. This method can reduce the frequency of adjustments by workers and improve installation efficiency.

[0026] 2. This utility model uses a reinforcement component. Specifically, after the blade is installed on the hub, the throttle is turned clockwise to rotate the threaded rod. At this time, the insert block moves. When the insert block enters the slot, it will lock the mating ring and fix the mating ring again through continuous compression, which serves to reinforce the blade. The insert block inserted into the slot can also prevent the blade from falling off.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the overall structure of the wheel hub of this utility model;

[0031] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0032] Figure 4 This utility model Figure 2 A magnified structural diagram of B in the diagram;

[0033] Figure 5 This is a schematic diagram of the overall structure of the docking ring of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Hub; 11. Blade; 2. Mounting part; 21. Mounting ring; 211. Insertion hole one; 212. Slot; 213. Fixing block; 214. Insertion hole two; 22. Reinforcing component; 221. Arc-shaped fixing plate; 222. Threaded rod one; 223. Throttle; 224. Insertion block; 225. Limiting rod; 3. Connecting part; 31. Connecting ring; 311. Threaded shaft; 312. Groove; 32. Positioning component; 321. Positioning block; 322. Connecting block; 323. Threaded rod two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1-5 As shown, this utility model is a fixing structure for installing wind turbine blades, including a hub 1, with a plurality of blades 11 arranged on the outer side of the hub 1, and also including:

[0038] Mounting part 2 is installed inside the hub 1 and is used to dock and fix with the blade 11.

[0039] The docking part 3 is installed at the end of the blade 11 and is used for positioning the blade 11 and the hub 1 during installation.

[0040] The blade 11 is connected to the mounting part 2 inside the hub 1 via the docking part 3, and the docking part 3 is used for quick docking when installing the blade 11.

[0041] Mounting part 2 includes a mounting ring 21 that is fixedly connected inside the hub 1;

[0042] The reinforcement component 22 is installed on the top and bottom of the mounting ring 21 and is used to reinforce the blade 11 after installation.

[0043] The mounting ring 21 has several insertion holes 211 inside and two slots 212 inside. The insertion holes 211 and slots 212 are used to position and align the blade 11 with the docking part 3 on the blade 11 during installation.

[0044] The docking part 3 includes a docking ring 31 fixedly connected to the end of the blade 11. Several threaded shafts 311 are fixedly connected to the side of the docking ring 31 away from the blade 11. The docking ring 31 is fixed to the blade 11 by welding, and the docking ring 31 can fit better after the blade 11 is docked with the hub 1. The threaded shafts 311 are installed on the docking ring 31 by welding.

[0045] Positioning component 32 is installed at the end of blade 11 and is used for positioning.

[0046] When the blade 11 is docked with the hub 1, the positioning component 32 docks with the mounting ring 21. The positioning component 32 is used to align the threaded shaft 311 and the insertion hole 211.

[0047] The positioning assembly 32 includes two positioning blocks 321 fixedly connected to the ends of the blade 11. A connecting block 322 is fixedly connected to the surface of the positioning block 321 on the left side. A threaded rod 323 is fixedly connected to the side of the connecting block 322 facing the hub 1. The mating ring 31 on the blade 11 is mated with the hub 1, and the positioning block 321 is inserted into the slot 212 on the mounting ring 21, thereby playing a positioning role, so that the threaded shaft 311 can be smoothly aligned with the first insertion hole 211. The threaded rod 323 will be inserted into the second insertion hole 214 on the fixing block 213. Then, a nut is installed on the threaded rod 323, and the nut is rotated to make it contact the fixing block 213. Through continuous rotation, the blade 11 is pulled, thereby quickly inserting the threaded shaft 311 into the first insertion hole 211, and using a locking nut to install and fix it. This method can reduce the frequency of adjustment by the staff and improve the installation efficiency.

[0048] The positioning block 321 is adapted to the shape of the slot 212, and the positioning block 321 is inserted into the slot 212 on the mounting ring 21.

[0049] A fixing block 213 is fixedly connected to the left side of the inner ring of the mounting ring 21. The fixing block 213 has an insertion hole 214 inside. The fixing block 213 is fixed to the inner side of the mounting ring 21 by welding.

[0050] Among them, the threaded rod 323 is inserted into the socket 214. After the threaded rod 323 is inserted into the socket 214, a nut is installed on the threaded rod 323. By rotating the nut, it contacts the fixing block 213 to pull the blade 11.

[0051] The reinforcement component 22 includes two arc-shaped fixing plates 221 fixedly connected to the surface of the mounting ring 21. A threaded rod 222 is threadedly connected inside the arc-shaped fixing plate 221. A handle 223 is fixedly connected to the side of the threaded rod 222 away from the docking ring 31. An insert block 224 is rotatably connected to the side of the handle 223 facing the docking ring 31. After the blade 11 is installed on the hub 1, the handle 223 is rotated clockwise to drive the threaded rod 222 to rotate. At this time, the insert block 224 moves. When the insert block 224 enters the slot 312, it will lock the docking ring 31 and fix the docking ring 31 again through continuous compression, which serves as a reinforcement function. The insert block 224 inserted into the slot 312 can prevent the blade 11 from falling off.

[0052] The inner ring of the docking ring 31 has two slots 312. The insert block 224 is arc-shaped and its shape matches the slots 312. After the insert block 224 enters the slots 312, it reinforces and locks the docking ring 31.

[0053] A limiting rod 225 is fixedly connected to the side of the insert 224 facing the arc-shaped fixing plate 221. The limiting rod 225 slides through the arc-shaped fixing plate 221 and extends to the outside. Since the limiting rod 225 slides on the arc-shaped fixing plate 221, it will not affect the movement of the insert 224.

[0054] The limiting rod 225 is used to limit the insertion block 224. When the insertion block 224 moves, it drives the limiting rod 225 to move together, so that the insertion block 224 moves in a straight line. The insertion block 224 is T-shaped. The position of the insertion block 224 facing the threaded rod 222 is the wide part, and the position away from the threaded rod 222 is the narrow part.

[0055] One specific application of this embodiment is:

[0056] In use, the blade 11 is hoisted, and then the docking ring 31 on the blade 11 is docked with the hub 1. First, the positioning block 321 is inserted into the slot 212 on the mounting ring 21 to provide positioning, allowing the threaded shaft 311 to be smoothly aligned with the insertion hole 211, thus quickly completing the docking. The threaded rod 323 is then inserted into the insertion hole 214 on the fixing block 213. After docking, a nut is installed on the threaded rod 323 and rotated to contact the fixing block 213. Through continuous rotation, the blade 11 is pulled, causing the threaded shaft 311 to be inserted into the insertion hole 211, and the docking ring 31 contacts the surface of the mounting ring 21. Locking nuts can then be installed on several threaded shafts 311, and the slot 312 will move to the position corresponding to the insertion block 224. After securing the blade 11 to the mounting ring 21 by installing a locking nut on the threaded shaft 311, the docking can be quickly completed. Then, inside the hub 1, the operator rotates the handle 223 clockwise to rotate the threaded rod 222. At this time, the insert block 224 moves and drives the limiting rod 225 to move together. Since the limiting rod 225 slides on the arc-shaped fixing plate 221, it limits the insertion block 224, causing the insertion block 224 to move in a straight line. When the insertion block 224 enters the slot 312, it will lock the docking ring 31 and fix the docking ring 31 again through continuous compression, which serves to reinforce it. The insertion block 224 inserted into the slot 312 can also prevent the blade 11 from falling off. Finally, the other blades 11 are installed in the same way to complete the installation.

[0057] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixing structure for mounting wind turbine blades, comprising a hub (1), wherein a plurality of blades (11) are disposed on the outer side of the hub (1), characterized in that, Also includes: Mounting part (2), which is installed inside the hub (1) and is used to dock and fix with the blade (11); The docking part (3) is installed at the end of the blade (11) and is used for positioning the blade (11) and the hub (1) during installation. The blade (11) is connected to the mounting part (2) inside the hub (1) via the docking part (3), and the docking part (3) is used for quick docking when installing the blade (11).

2. The fixing structure for installing wind turbine blades according to claim 1, characterized in that, The mounting part (2) includes a mounting ring (21) that is fixedly connected inside the hub (1); A reinforcement component (22) is installed on the top and bottom of the mounting ring (21) and is used to reinforce the blade (11) after installation. The mounting ring (21) has several insertion holes (211) inside and two slots (212) inside. The insertion holes (211) and slots (212) are used to position and align the blade (11) with the docking part (3) on the blade (11) during installation.

3. The fixing structure for installing wind turbine blades according to claim 2, characterized in that, The docking part (3) includes a docking ring (31) fixedly connected to the end of the blade (11), and a plurality of threaded shafts (311) are fixedly connected to the side of the docking ring (31) away from the blade (11). A positioning component (32) is installed at the end of the blade (11) and is used for positioning. When the blade (11) docks with the hub (1), the positioning component (32) docks with the mounting ring (21), and the positioning component (32) is used to align the threaded shaft (311) and the insertion hole (211).

4. The fixing structure for installing wind turbine blades according to claim 3, characterized in that, The positioning component (32) includes two positioning blocks (321) fixedly connected to the end of the blade (11). A connecting block (322) is fixedly connected to the surface of the positioning block (321) on the left side. A threaded rod (323) is fixedly connected to the side of the connecting block (322) facing the hub (1). The positioning block (321) is adapted to the shape of the slot (212), and the positioning block (321) is inserted into the slot (212) on the mounting ring (21).

5. The fixing structure for installing wind turbine blades according to claim 4, characterized in that, A fixing block (213) is fixedly connected to the left side of the inner ring of the mounting ring (21), and the fixing block (213) has a second insertion hole (214) inside. The threaded rod (323) is inserted into the socket (214). After the threaded rod (323) is inserted into the socket (214), a nut is installed on the threaded rod (323). The nut is rotated to contact the fixing block (213) to pull the blade (11).

6. The fixing structure for installing wind turbine blades according to claim 3, characterized in that, The reinforcement component (22) includes two arc-shaped fixing plates (221) fixedly connected to the surface of the mounting ring (21). The arc-shaped fixing plate (221) is internally threaded with a threaded rod (222). A throttle (223) is fixedly connected to the side of the threaded rod (222) away from the docking ring (31). A plug (224) is rotatably connected to the side of the throttle (223) facing the docking ring (31). The inner ring of the docking ring (31) has two slots (312), the insert (224) is arc-shaped and its shape is adapted to the slots (312). After the insert (224) enters the slots (312), it reinforces and locks the docking ring (31).

7. The fixing structure for installing wind turbine blades according to claim 6, characterized in that, The insert (224) is fixedly connected to a limiting rod (225) on the side facing the arc-shaped fixing plate (221), and the limiting rod (225) slides through the arc-shaped fixing plate (221) and extends to the outside; The limiting rod (225) is used to limit the insertion block (224). When the insertion block (224) moves, it drives the limiting rod (225) to move together, so that the insertion block (224) moves in a straight line.

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