Wind power blade hoisting protective sleeve self-falling structure

Abstract

The utility model discloses a self-falling structure of a wind power blade hoisting protective sleeve. The self-falling structure comprises a plurality of groups of anti-tremor sleeves, a plurality of disturbing blocks and a dismounting and pulling rope, the anti-tremor set comprises a circumferential bandage, a first protection block, a second protection block and a radial bandage. The second protection block is a TV-shaped protection block of a T-shaped structure and is composed of two sets of clamping plates and a supporting block, the supporting block is fixedly arranged at one ends of the clamping plates, the other ends of the two clamping plates are fixedly connected, the two sets of clamping plates and the supporting block form the T-shaped structure which is symmetrically arranged up and down, and the other ends of the two clamping plates can be freely opened to clamp the rear edge of the wind power blade. According to the self-falling structure of the wind power blade hoisting protective sleeve, each group of circumferential binding bands and the first protective blocks, the second protective blocks, the radial binding bands and the turbulent flow blocks connected to the circumferential binding bands can be removed from the blade body, the purpose of self-detachment and falling is achieved, operation is simple and fast, time and labor are saved, and safety is high.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for wind turbine blade operation, and more particularly to a self-detaching structure for a wind turbine blade hoisting protective sleeve. Background Technology

[0002] Wind turbine blades are the core component of wind turbine generators and a primary indicator of their design and technological level. The function of wind turbine blades is to capture wind energy during rotation and convert it into electrical energy for the wind turbine generator. Currently, during the installation of wind turbine blades, due to their large windward area, they are easily affected by wind resistance, resulting in wind resistance vibrations of varying sizes and directions at different parts of the blades. This multi-directional wind resistance vibration adversely affects the stability of the wind turbine blade hoisting operation.

[0003] Currently, to eliminate wind resistance flutter generated during operation, anti-flutter straps and spoilers are commonly attached to the periphery of the wind turbine blades. However, these anti-flutter straps and spoilers generally require manual removal after the wind turbine blades are installed, which is time-consuming, labor-intensive, and poses certain safety hazards. Utility Model Content

[0004] This utility model addresses the problem that the removal of anti-vibration straps and spoilers from wind turbine blades is time-consuming, labor-intensive, and poses safety hazards. It proposes a self-detaching structure for wind turbine blade hoisting protective sleeves that allows for simple and quick removal of anti-vibration straps and spoilers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-detaching structure for a wind turbine blade hoisting protective sleeve includes several sets of anti-vibration sleeves spaced apart and bound to the blade body, several detachable baffles mounted on circumferential and / or radial straps, and a pull rope; the anti-vibration sleeve includes the circumferential straps, a first protective block, a second protective block, and the radial straps, wherein:

[0007] The first and second protective blocks in each group are detachably bound to the leading and trailing edges of the blade body by the circumferential straps, respectively, and the circumferential straps of adjacent groups are detachably connected by a number of radial straps.

[0008] The second protective block is a TV-type protective block with a T-shaped structure, which consists of two sets of clamping plates and support blocks. The support blocks are fixedly installed at one end of the clamping plates, and the other ends of the two clamping plates are fixedly connected. The two sets of clamping plates and support blocks form a T-shaped structure arranged symmetrically from top to bottom, and the other ends of the two clamping plates can be opened freely to clamp the trailing edge of the wind turbine blade.

[0009] Preferably, the spoiler is a flat triangular prism structure with a triangular cross-section, and tethers connected to the circumferential straps and / or the radial straps are respectively provided at the four corners of its bottom.

[0010] Preferably, the size of each set of circumferential straps, first protective block, second protective block and / or radial straps is matched to different binding positions on the blade body.

[0011] Preferably, the circumferential strap is composed of two strap strips arranged in parallel left and right. Each strap strip includes a strap body, a strap connector, and a pull cord perforation strip. The strap body is provided with the strap connector at both ends, and the pull cord perforation strip is provided at at least one end near the strap connector.

[0012] Preferably, the first protective block is an arc-shaped sheet structure, with two first perforations arranged at intervals on the left and right sides at its upper and lower ends.

[0013] Preferably, the TV-type protective block has a ninth through hole at the fixed connection of the two clamping plates, and a tenth through hole is provided at each end of the support block corresponding to the position of the ninth through hole, for threading the strap body through.

[0014] Preferably, a relatively thick receiving cavity is provided on one side of the connection between the two clamping plates, and support pads arranged symmetrically on the inner walls of the two clamping plates outside the receiving cavity are provided.

[0015] Preferably, both the first protective block and the second protective block are made of an elastic and deformable material.

[0016] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0017] This invention achieves self-disassembly and detachment by sewing pull rope perforated straps onto the strap bodies of circumferential straps arranged at intervals, and placing the pull rope perforated straps near the buckle connection points at both ends of the circumferential straps. When assembling the wind turbine blade lifting protective sleeve self-detaching structure on the blade body, the pull ropes are connected in series with each pull rope. By manually pulling the pull ropes, the buckle connection points of each circumferential strap can be opened, thereby sequentially removing each set of circumferential straps and the first protective block, second protective block, radial strap, and deflector block connected to them from the blade body, achieving the purpose of self-disassembly and detachment. The operation is simple, quick, time-saving, labor-saving, and highly safe. The second protective block adopts a TV-type protective block to fully fit the relatively thin trailing edge of the wind turbine blade. Both the first and second protective blocks are made of elastic deformable materials, which have a certain buffering effect, and their structural design is simple and the production cost is low. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the usage state of the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model when multiple sets are combined and bound to the blade body. Figure 3 ;

[0019] Figure 2 This is a partially enlarged structural diagram of part D of the self-detaching structure for the wind turbine blade hoisting protective sleeve of this utility model in its working state;

[0020] Figure 3 This is a schematic diagram of a single unit of the self-detaching protective sleeve structure for wind turbine blade hoisting according to the present invention. Figure 1 ;

[0021] Figure 4 This is a three-dimensional structural diagram of the TV-type protective block in the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model. Figure 1 ;

[0022] Figure 5 This is a three-dimensional structural diagram of the TV-type protective block in the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model. Figure 2 ;

[0023] Figure 6 This is a schematic diagram illustrating the usage state of the TV-type protective block in the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model. Figure 1 ;

[0024] Figure 7 This is a schematic diagram illustrating the usage state of the TV-type protective block in the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model. Figure 2 ;

[0025] Figure 8 This is a three-dimensional structural diagram of the turbulence block in the self-detaching structure of the wind turbine blade hoisting protective sleeve of this utility model. Detailed Implementation

[0026] The present invention will be described in detail below through specific embodiments to enable a better understanding of the present invention. However, the following embodiments do not limit the scope of the present invention.

[0027] like Figure 1 and Figure 2 The diagram shows the usage state of the self-detaching structure for the wind turbine blade hoisting protective sleeve of this utility model on the blade body 700. This self-detaching structure is composed of several sets of anti-vibration sleeves. The dimensions of the circumferential straps 100, the first protective block 200, the second protective block 300, and / or the radial straps 400 of each set of anti-vibration sleeves are matched to different binding positions on the blade body 700 to ensure sufficient tightening at different positions of the blade body 700 and prevent localized slippage or loosening.

[0028] like Figure 3 As shown, this is a vibration damping kit with a T-shaped structure for the second protective block 300. Multiple such vibration damping kits are spaced apart and strapped to the blade body 700. Each vibration damping kit mainly includes a circumferential strap 100, a first protective block 200, a second protective block 300, and a radial strap 400. The second protective block 300 is a TV-type protective block 340 with a T-shaped structure, and the TV-type protective block 340 is made of an elastic and deformable material.

[0029] like Figure 4 and Figure 5 As shown, the second protective block 300 is a TV-type protective block 340 with a T-shaped structure, made of an elastic deformable material, such as foamed polyurethane, thermoplastic elastomer, thermoplastic memory polymer, or soft-hard phase-separable plastic. Specifically, it can be made of rigid polyurethane foam or rubber, and integrally injection molded.

[0030] like Figure 6 and Figure 7 As shown, the TV-type protective block 340 consists of two sets of clamping plates 341 and a support block 342. The support block 342 is fixedly installed at one end of the clamping plate 341, and the other ends of the two clamping plates 341 are fixedly connected. The two sets of clamping plates 341 and the support block 342 form a T-shaped structure arranged symmetrically from top to bottom, and the other ends of the two clamping plates 341 can be opened freely to clamp the trailing edge of the wind turbine blade 700 to protect the serrations 701 at the trailing edge of the blade.

[0031] To facilitate the insertion of the TV-type protective block 340 onto the circumferential strap 100, a ninth through hole 343 is provided at the fixed connection of the two clamping plates 341. A tenth through hole 344 is provided at both ends of the support block 342 corresponding to the position of the ninth through hole 343, for inserting the strap body 111 and for limiting the position of the support block 342.

[0032] In addition, to avoid potential damage to the sawtooth 701 caused by the TV-type protective block 340 clamped at the trailing edge of the wind turbine blade 700, a relatively thick receiving cavity 345 is provided on one side of the connection between the two clamping plates 341, and support pads 346 arranged symmetrically on the inner walls of the two clamping plates 341 outside the receiving cavity 345 are provided.

[0033] When in use, when the TV-type protective block 340 is clamped at the rear edge of the wind turbine blade 700, the outer side of the clamping plate 341 is attached to the upper and lower surfaces of the wind turbine blade 700 on the inner side, while the support pad 346 is attached to the upper and lower surfaces of the outer edge of the wind turbine blade 700 near the sawtooth 701, so as to provide sufficient space for the sawtooth 701 to support it, thereby protecting the sawtooth 701.

[0034] And such Figure 4 and Figure 5 The TV-shaped anti-vibration kit shown, when strapped to the blade body 700, all employ the following methods: Figure 1 and Figure 2 The installation method involves binding several sets of anti-vibration kits to the blade body 700 at intervals, and fixing them together with radial straps 400. A spoiler 500 is then bound to the corresponding circumferential strap 100, and a pull rope 600 is threaded through the pull rope perforation 116 on each circumferential strap 100.

[0035] In this embodiment, the circumferential binding strap 100 consists of two parallel binding strips arranged side by side. Both binding strips are made of high-strength polyester filaments, possessing multiple advantages such as high strength, wear resistance, oxidation resistance, and UV resistance. They are also soft, non-conductive, and non-corrosive. The binding strips are flat, elongated strips that can be tightly bound around the blade body 700, and both ends can be detachably connected via binding strap connectors after one complete wrap.

[0036] Depending on the actual usage scenario, the straps can be connected to each other using any snap fastener, such as Velcro or letter snaps. Letter snaps can be made of metal or plastic.

[0037] In this embodiment, as Figure 3 As shown, the first protective block 200 is an arc-shaped sheet structure made of an elastic deformable material, such as polyurethane foam, thermoplastic elastomer, thermoplastic memory polymer, or soft-hard phase-separable plastic. Specifically, it may be made of rigid polyurethane foam or rubber.

[0038] In this embodiment, as Figure 1 and Figure 2 As shown, a radial strap 400 serves as the connection between two adjacent circumferential straps 100. The radial strap 400 is a flat, elongated strap arranged laterally to tighten the two straps connecting the left and right sides. Similarly, the radial strap 400 is also made of high-strength polyester filament, which has multiple advantages such as high strength, wear resistance, oxidation resistance, and UV resistance. At the same time, it is soft, non-conductive, and non-corrosive.

[0039] In this embodiment, as Figure 8 As shown, in order to reduce the impact of wind resistance on wind turbine blades and to overcome the vertical vibration or horizontal swaying of wind turbine blades, the self-detaching structure of the wind turbine blade hoisting protective sleeve also includes a disturbance flow block 500. The disturbance flow block 500 can be detachably installed on the circumferential strap 100 and / or the radial strap 400. The number and installation position of the disturbance flow block 500 are determined according to actual needs.

[0040] The purpose of the spoiler 500 is to change the direction, speed, and pressure distribution of the airflow to reduce wind resistance. Specifically, the spoiler 500 is a flat triangular prism structure with a triangular cross-section, and tethers at its four bottom corners that connect to the circumferential strap 100 and / or the radial strap 400. The tethers connect the circumferential strap 100 and / or the radial strap 400 to ensure the spoiler 500 is as close as possible to the surface of the blade body 700. The spoiler 500 is made of lightweight foam material covered with fiber cloth.

[0041] Furthermore, in this embodiment, such as Figure 1 and Figure 2 As shown, this structure aims to achieve the self-detachment and disassembly of the wind turbine blade lifting protective sleeve. The self-detachment structure also includes a pull rope 600, which is made of nylon rope of sufficient length.

[0042] One end of the pull rope 600 is fixedly connected to the pull rope perforation strip on the outermost circumferential strap 100, or fixedly tied to an anchor point at the root of the blade body 700. The other end of the pull rope 600 passes sequentially through the pull rope perforation strips on the remaining circumferential straps 100 to connect with external tension. That is, one end of the pull rope 600 is fixed to the outermost pull rope perforation strip at one end, and the other end passes sequentially through each pull rope perforation strip, and emerges from the outermost pull rope perforation strip at the other end.

[0043] When needed, the pull rope 600 can be pulled manually to separate the strap connectors on each circumferential strap 100, thereby causing the circumferential strap 100 and its components to detach from the blade body 700, achieving self-disassembly without the need for manual disassembly, which greatly improves the operating efficiency of wind turbine blades and ensures the safety of hoisting operations.

[0044] Combination Figure 1 , Figure 2 and Figure 3 As shown, the working principle of this self-detaching structure for the wind turbine blade hoisting protective sleeve is as follows:

[0045] Step 1: Based on the size of the blade body 700, prefabricate 8 sets of anti-vibration kits of different sizes, assemble the directional straps 100, first protective block 200, TV-type protective block 340 and radial straps 400 of each anti-vibration kit together; and label the 8 sets of anti-vibration kits as anti-vibration kit 1, 2, 3, 4, 5, 6, 7 and 8 in order of size and installation sequence.

[0046] Step 2: Vertically install the anti-vibration kits 1, 2, 3, 4, 5, 6, 7 and 8 onto the blade body 700 using the strap body 111 and strap connectors, with each anti-vibration kit arranged at equal intervals; and set the first protective block 200 and the TV-type protective block 340 at the leading edge and trailing edge of the blade body 700, respectively, and press them down with the strap body 111.

[0047] Step 3: Secure each anti-vibration kit to the blade body 700 using the strap connectors on each kit. Then, use radial straps 400 to fix the strap bodies 111 of two adjacent anti-vibration kits together. The radial straps 400 are located on the upper and lower surfaces of the blade body 700 to cooperate with the strap connectors and connect the anti-vibration kits 1, 2, 3, 4, 5, 6, 7 and 8 into a whole protective unit.

[0048] Step 4: According to the actual operation requirements, install the interference block 500 on the self-detaching structure of the wind turbine blade hoisting protective sleeve that is assembled and connected as one piece, and thread the pull rope 600 through the pull rope perforated strip on each circumferential strap 100, with one end of the pull rope 600 fixed to the pull rope perforated strip at one end, and other perforations are set.

[0049] Step 5: After the hoisting operation is completed, manually pull the pull rope 600 to disassemble the strap connectors on each anti-vibration kit, so as to pull each anti-vibration kit off the blade body 700 and achieve the purpose of self-detachment.

[0050] In other words, this utility model uses pull cord perforated strips fixedly sewn onto the circumferential straps 100 arranged at intervals, and connects the pull cord perforated strips in series using a pull cord 600. By manually pulling the pull cord 600, the buckle connection points on each circumferential strap 100 can be opened, thereby sequentially pulling each group of circumferential straps 100 and the first protective block 200, TV-type protective block 340, radial strap 400 and deflector block 500 connected thereon off the blade body 700, thus achieving the purpose of self-disassembly.

[0051] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model should be covered within the scope of this utility model.

Claims

1. A self-detaching structure for a wind turbine blade hoisting protective sleeve, characterized in that, The device includes several sets of anti-vibration kits spaced apart and strapped to the blade body, several detachable spoilers mounted on circumferential and / or radial straps, and a pull cord; the anti-vibration kit includes the circumferential straps, a first protective block, a second protective block, and the radial straps, wherein: The first and second protective blocks in each group are detachably bound to the leading and trailing edges of the blade body by the circumferential straps, respectively, and the circumferential straps of adjacent groups are detachably connected by a number of radial straps. The second protective block is a TV-type protective block with a T-shaped structure, which consists of two sets of clamping plates and support blocks. The support blocks are fixedly installed at one end of the clamping plates, and the other ends of the two clamping plates are fixedly connected. The two sets of clamping plates and support blocks form a T-shaped structure arranged symmetrically from top to bottom, and the other ends of the two clamping plates can be opened freely to clamp the trailing edge of the wind turbine blade.

2. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, The turbulence block is a flat triangular prism structure with a triangular cross-section, and tethers connected to the circumferential straps and / or the radial straps are respectively provided at the four corners of its bottom.

3. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, The size of each set of circumferential straps, first protective blocks, second protective blocks, and / or radial straps is matched to different binding positions on the blade body.

4. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, The circumferential strap consists of two strap strips arranged parallel to each other. Each strap strip includes a strap body, a strap connector, and a pull cord perforation strip. The strap body has detachable strap connectors at both ends, and the pull cord perforation strip is located at at least one end near the strap connector.

5. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, The first protective block is an arc-shaped sheet structure with two first perforations arranged at intervals on the left and right sides at its upper and lower ends.

6. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, The TV-type protective block has a ninth through hole at the fixed connection of the two clamping plates, and a tenth through hole at each end of the support block corresponding to the ninth through hole, for threading the strap body.

7. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 6, characterized in that, A relatively thick receiving cavity is provided on one side of the connection between the two clamping plates, and support pads arranged symmetrically on the inner walls of the two clamping plates outside the receiving cavity are provided.

8. The self-detaching structure for the wind turbine blade hoisting protective sleeve according to claim 1, characterized in that, Both the first protective block and the second protective block are made of elastic and deformable material.

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