CN204585870U - A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles - Google Patents
A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles Download PDFInfo
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- CN204585870U CN204585870U CN201520308926.7U CN201520308926U CN204585870U CN 204585870 U CN204585870 U CN 204585870U CN 201520308926 U CN201520308926 U CN 201520308926U CN 204585870 U CN204585870 U CN 204585870U
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- bonding pad
- composite material
- material blade
- vertical axis
- punching bonding
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Abstract
The utility model relates to a kind of H type vertical axis windmill composite material blade punching bonding pad ply angles, described H type vertical axis windmill comprises composite material blade, connect support bar and the wind energy conversion system main shaft of blade, composite material blade is connected with main shaft by support bar, support bar and composite material blade are connected to the punching bonding pad of composite material blade, described punching bonding pad is formed by some layers of composite plys, the utility model is by the laying angle to composite, the parameter such as overlay thickness and axial length designs, the concentrated impact of composite material blade punching bonding pad ambient stress will be improved, improve intensity and the toughness of punching connection, improve the bearing capacity that blade connects.
Description
Technical field
The utility model belongs to blade structure for wind driven generator design field, is specifically related to a kind of vertical axis windmill composite material blade punching bonding pad Lay up design method, can be applicable to large-scale H type vertical axis aerogenerator composite material blade structural design.
Background technology
The wind wheel apparatus of large-scale H type vertical axis aerogenerator is made up of blade, the support bar connecting blade and main shaft.Blade is the critical component of wind-driven generator, and for guaranteeing the connection reliability between blade and support bar, blade can adopt punching (or anchor ear punch) connected mode and support bar to fix.The blade of wind-driven generator adopts composite manufacture, larger stress is had to concentrate around hole due to blade punching bonding pad, obviously will reduce the bearing capacity of blade connection, be the intensity and the toughness that improve blade punching connection, needs to carry out Lay up design to composite material blade punching bonding pad.
Utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of H type vertical axis windmill composite material blade punching bonding pad ply angles, by the laying angle to composite, overlay thickness and the isoparametric appropriate design of axial length and optimization, the impact that punching bonding pad ambient stress is concentrated can be slowed down, significantly improve intensity and the toughness of blade punching connection.
The technical scheme that the utility model adopts is:
A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles, described H type vertical axis windmill comprises composite material blade, the support bar connecting blade and wind energy conversion system main shaft, described composite material blade is connected with the main shaft of vertical axis windmill by support bar, it is characterized in that, described support bar and composite material blade are connected to the punching bonding pad on composite material blade girder, and described punching bonding pad is formed by some layers of composite plys.
Preferably, in described punching bonding pad, laying angle, the overlay thickness of each layer composite distribute along vane thickness direction balance and symmetry.
Preferably, at the high stress concentrations position of described punching bonding pad, be equipped with ± 45 ° of two-way cloth, 0 ° of unidirectional cloth and 90 ° of unidirectional cloths.
Preferably, a described ± 45 ° two-way cloth laying ratio is no less than 40%, and described 0 ° of unidirectional cloth ratio is not less than 25%, described 90 ° of unidirectional cloth ratios 10 ~ 25%.
Preferably, the outermost layer of described punching bonding pad and innermost layer arrange two-way cloth or three-dimensional cloth.
Preferably, the compound material laying layer thickness of described punching bonding pad, along sharf to answering gradual change, makes laying integral rigidity change mild.
Preferably, each laying fiber of described punching bonding pad is continuous print.
Preferably, the outer peripheral face of described punching bonding pad is provided with anchor ear, in described punching bonding pad arbitrary laying along sharf to minimum length L be greater than anchor ear width W, in anchor ear width W, fiber lay down layer thickness is identical.
Preferably, in described punching bonding pad, the fiber cloth of equidirectional is dispersion along overlay thickness direction, and between each layer, the angle of fiber orientation is no more than 45 °.
Preferably, the position equivalent in described ± 45 ° two-way cloth face in the overlay thickness of punching bonding pad.
The H type vertical axis windmill composite material blade punching bonding pad laying method that the utility model proposes, can be applicable on large-scale H type vertical axis windmill composite material blade, by the laying angle to composite, overlay thickness and the isoparametric appropriate design of axial length and optimization, the impact that punching bonding pad ambient stress is concentrated can be slowed down, improve the bearing capacity that blade connects.
Accompanying drawing explanation
Fig. 1 is H type vertical-shaft wind machine schematic diagram;
Fig. 2 is blade punching bonding pad schematic diagram, and wherein, (A) is overall diagram, and (B) is top view;
Fig. 3 is punching bonding pad composite plys structural representation.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the utility model is further described.
As shown in Figure 1, large-scale H type vertical axis windmill comprises composite material blade 1, the support bar 2 connecting blade and wind energy conversion system main shaft 3, composite material blade 1 is connected with main shaft 3 by support bar 2, and support bar 2 and composite material blade 1 are connected to the punching bonding pad of composite material blade 1.
The girder 4 of composite material blade 1 punches, is connected by blade 1 (or first use anchor ear 6 fixed blade, then connections of punching) with bolt 5 with support bar 2, formation blade as shown in Figure 2 punches bonding pad.
With reference to Fig. 3, large-scale H type vertical axis aerogenerator composite material blade punching bonding pad of the present utility model ply angles, laying angle, the overlay thickness of composite adopt balance and symmetry design along vane thickness direction.In laying angle design, ± 45 ° of two-way cloth laying ratios are no less than 40%, and 0 ° of unidirectional cloth ratio is not less than 25%, 90 ° of unidirectional cloth ratios 10 ~ 25%.Wherein, should try one's best equivalent in the position in ± 45 ° of two-way cloth faces in the overlay thickness of punching bonding pad; Along overlay thickness direction, the fiber cloth of equidirectional should be disperseed as far as possible, and between each layer, the angle of fiber orientation is no more than 45 °; The outermost layer of laying and innermost layer should arrange two-way cloth or three-dimensional cloth, should not adopt unidirectional cloth.In overlay thickness design, overlay thickness, along sharf to answering gradual change, makes laying integral rigidity change mild.Laying axial length design in, punching bonding pad in arbitrary laying along sharf to minimum length L should be greater than anchor ear width W, the overlay thickness that do not have in anchor ear width W successively decreases.In addition, each laying fiber should be continuous, do not allow splicing.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within scope of the present utility model.
Claims (10)
1. a H type vertical axis windmill composite material blade punching bonding pad ply angles, described H type vertical axis windmill comprises composite material blade, the support bar connecting blade and wind energy conversion system main shaft, described composite material blade is connected with the main shaft of vertical axis windmill by support bar, it is characterized in that, described support bar and composite material blade are connected to the punching bonding pad on composite material blade girder, and described punching bonding pad is formed by some layers of composite plys.
2. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, in described punching bonding pad, laying angle, the overlay thickness of each layer composite distribute along vane thickness direction balance and symmetry.
3. H type vertical axis windmill composite material blade punching bonding pad according to claim 2 ply angles, is characterized in that, at the high stress concentrations position of described punching bonding pad, be equipped with ± 45 ° of two-way cloth, 0 ° of unidirectional cloth and 90 ° of unidirectional cloths.
4. H type vertical axis windmill composite material blade punching bonding pad according to claim 3 ply angles, it is characterized in that, a described ± 45 ° two-way cloth laying ratio is no less than 40%, and described 0 ° of unidirectional cloth ratio is not less than 25%, described 90 ° of unidirectional cloth ratios 10 ~ 25%.
5. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, the outermost layer of described punching bonding pad and innermost layer arrange two-way cloth or three-dimensional cloth.
6. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, the compound material laying layer thickness of described punching bonding pad, along sharf to answering gradual change, makes laying integral rigidity change mild.
7. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, each laying fiber of described punching bonding pad is continuous print.
8. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, the outer peripheral face of described punching bonding pad is provided with anchor ear, in described punching bonding pad arbitrary laying along sharf to minimum length L be greater than anchor ear width W, in anchor ear width W, fiber lay down layer thickness is identical.
9. H type vertical axis windmill composite material blade punching bonding pad according to claim 1 ply angles, it is characterized in that, in described punching bonding pad, the fiber cloth of equidirectional is dispersion along overlay thickness direction, and between each layer, the angle of fiber orientation is no more than 45 °.
10. H type vertical axis windmill composite material blade punching bonding pad according to claim 3 ply angles, is characterized in that, the position equivalent in described ± 45 ° two-way cloth face in the overlay thickness of punching bonding pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308926.7U CN204585870U (en) | 2015-05-13 | 2015-05-13 | A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308926.7U CN204585870U (en) | 2015-05-13 | 2015-05-13 | A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204585870U true CN204585870U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520308926.7U Expired - Fee Related CN204585870U (en) | 2015-05-13 | 2015-05-13 | A kind of H type vertical axis windmill composite material blade punching bonding pad ply angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204585870U (en) |
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2015
- 2015-05-13 CN CN201520308926.7U patent/CN204585870U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 |