A dockable segmented blade

Abstract

The utility model relates to the technical field of wind driven generator blade, especially a kind of butt joint segmented blade, including blade root section and blade tip section that can be inserted and fixed on blade root section;Fixed with a plug-in block in the blade root section, a butt joint sleeve is arranged in blade tip section, the plug-in block can be inserted into butt joint sleeve;First butt joint through-hole is opened in the plug-in block, second butt joint through-hole is opened in butt joint sleeve, and second butt joint through-hole penetrates blade tip section.A kind of butt joint segmented blade of the utility model, and blade can be segmented butt joint, and have higher butt joint strength.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, and in particular to a segmented blade that can be connected. Background Technology

[0002] As blades continue to grow larger, the length of land-based blades has exceeded 100 meters. To meet the blade installation needs of regions with abundant wind resources but complex terrain, it is necessary to study blade segmentation technology to enable blade transportation in mountainous areas, meet future market demands, and lay the foundation for modular production of ultra-long blades through the development of blade segmentation technology. Utility Model Content

[0003] The purpose of this utility model is to provide a segmented blade that can be joined together in segments and has high joining strength.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A segmented blade that can be joined together includes a root segment and a tip segment that can be inserted and fixed onto the root segment.

[0006] A plug-in block is fixed inside the leaf root section, and a mating sleeve is provided inside the leaf tip section. The plug-in block can be inserted into the mating sleeve.

[0007] A first through hole is provided on the plug block, and a second through hole is provided on the mating sleeve. The second through hole penetrates the blade tip section.

[0008] As an improvement, the plug-in block is fixed inside the leaf root section by a fixing bracket.

[0009] As an improvement, several first insertion posts are provided at the joint of the leaf root segment;

[0010] Several first mating holes adapted to the first insertion post are provided at the joint of the blade tip section.

[0011] As an improvement, the first plug can be inserted into the first mating hole.

[0012] As an improvement: a first fixed flange is provided at the joint of the blade root section, and a second fixed flange adapted to the first fixed flange is provided at the joint of the blade tip section;

[0013] The first fixed flange and the second fixed flange can be fixedly connected together by several studs.

[0014] In summary, this utility model has the following beneficial effects:

[0015] The blade root segment can be inserted into the mating sleeve inside the blade tip segment via its internal plug-in block. After being inserted to the bottom, the first mating through hole and the second mating through hole correspond to each other. Fastening bolts are installed in the first and second mating through holes to make the two tightly fixed together. Compared with segmented blades that are simply fixed by studs, its mating strength is greatly improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of a segmented blade that can be connected.

[0018] Figure 2 for Figure 1 Schematic diagram of part A in the middle;

[0019] Figure 3 This is a schematic diagram of a cross-sectional structure of a segmented blade that can be docked.

[0020] Figure 4 for Figure 3 Schematic diagram of Part B in the middle section;

[0021] The components are: 1. Leaf root section; 2. Leaf tip section; 3. Insert block; 4. Connecting sleeve; 5. First connecting through hole; 6. Second connecting through hole; 7. Fixing bracket; 8. First insert post; 9. First connecting hole; 10. First fixing flange; 11. Second fixing flange; 12. Stud. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Please refer to Figures 1-4 A segmented blade that can be joined together includes a root segment 1 and a tip segment 2 that can be inserted and fixed onto the root segment 1.

[0024] A plug-in block 3 is fixed inside the leaf root section 1, and a docking sleeve 4 is provided inside the leaf tip section 2. The plug-in block 3 can be inserted into the docking sleeve 4.

[0025] A first connecting hole 5 is provided on the plug block 3, and a second connecting hole 6 is provided on the connecting sleeve 4. The second connecting hole 6 penetrates the blade tip section 2.

[0026] In this embodiment, the blade root segment 1 can be inserted into the mating sleeve 4 inside the blade tip segment 2 via the internal insertion block 3. During insertion, fixing adhesive is sprayed onto the surface of the insertion block 3 to increase the tightness of the connection between the two. After insertion to the bottom, the first mating through hole 5 and the second mating through hole 6 correspond to each other. Fastening bolts are installed in the first mating through hole 5 and the second mating through hole 6 to make the two tightly fixed together. Compared with the segmented blades that are simply fixed by the stud 12, its mating strength is greatly improved.

[0027] The plug block 3 is fixed inside the leaf root section 1 by the fixing bracket 7.

[0028] Several first insertion posts 8 are provided at the joint of the leaf root segment 1; several first mating holes 9 are provided at the joint of the leaf tip segment 2, which are adapted to the first insertion posts 8. The first insertion posts 8 can be inserted into the first mating holes 9.

[0029] In this embodiment, in order to improve the strength and tightness of the mating joint, fixing adhesive is sprayed on the first insertion post 8 during insertion. Then, when the insertion block 3 is inserted into the mating sleeve 4, the first insertion post 8 is inserted and bonded to the first mating hole 9.

[0030] A first fixed flange 10 is provided at the joint of the blade root section 1, and a second fixed flange 11 adapted to the first fixed flange 10 is provided at the joint of the blade tip section 2; the first fixed flange 10 and the second fixed flange 11 can be fixedly connected together by a number of studs 12.

[0031] In this embodiment, to improve the strength and tightness of the joint, after the above-mentioned insertion is completed, the first fixed flange 10 and the second fixed flange 11 are fixed together by studs 12.

[0032] Installation and docking process: First, apply fixing adhesive to the surface of the plug block 3 and the first plug post 8. Then, use external equipment to insert the plug block 3 into the docking sleeve 4. Insert the first plug post 8 into the first docking hole 9. After it is inserted to the bottom, the first docking through hole 5 and the second docking through hole 6 correspond to each other. Install fastening bolts in the first docking through hole 5 and the second docking through hole 6.

[0033] After installation and fixing, the first fixing flange 10 and the second fixing flange 11 are fixedly connected together by several studs 12. Through the above operation, the blade tip section 2 can be fastened to the blade root section 1, and the connection strength is high.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A segmented blade that can be joined together, characterized in that, It includes a leaf root segment and a leaf tip segment that can be inserted and fixed onto the leaf root segment; A plug-in block is fixed inside the leaf root section, and a mating sleeve is provided inside the leaf tip section. The plug-in block can be inserted into the mating sleeve. A first through hole is provided on the plug block, and a second through hole is provided on the mating sleeve. The second through hole penetrates the blade tip section.

2. The segmented blade capable of docking according to claim 1, characterized in that, The plug-in block is fixed inside the leaf root section by a fixing bracket.

3. The segmented blade capable of docking according to claim 1, characterized in that, Several first insertion posts are provided at the joint of the leaf root segment; Several first mating holes adapted to the first insertion post are provided at the joint of the blade tip section.

4. The segmented blade capable of docking according to claim 3, characterized in that, The first plug can be inserted into the first mating hole.

5. The segmented blade capable of docking according to claim 1, characterized in that, A first fixed flange is provided at the joint of the blade root section, and a second fixed flange adapted to the first fixed flange is provided at the joint of the blade tip section. The first fixed flange and the second fixed flange can be fixedly connected together by several studs.

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