CN216429838U - Blade prefabricated part, fan blade and fan equipment - Google Patents
Blade prefabricated part, fan blade and fan equipment Download PDFInfo
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- CN216429838U CN216429838U CN202122743966.2U CN202122743966U CN216429838U CN 216429838 U CN216429838 U CN 216429838U CN 202122743966 U CN202122743966 U CN 202122743966U CN 216429838 U CN216429838 U CN 216429838U
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- pultrusion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a fan equipment field, concretely relates to blade prefab, fan blade and fan equipment, wherein, the blade prefab includes: a plurality of first pultrude panels, each first pultrude panel is provided with first boss structure and second boss structure respectively along its width direction's both ends, and first boss structure with position between the second boss structure forms groove structure, arbitrary two first pultrude panel's boss structure can be to piecing together, put into same other first pultrude panel in the groove structure. According to the configuration, the utility model provides a blade prefab, fan blade and fan equipment can avoid pultrusion board concatenation position to produce great gap and be difficult for following the technical problem of type with the mould.
Description
Technical Field
The utility model relates to a wind power equipment technical field especially relates to a blade prefab, fan blade and fan equipment.
Background
With the development trend of gradually enlarging fan blades, the requirements on light weight and structural strength of the fan blades are higher and higher. Compared with the traditional fabric perfusion forming process, the pultrusion plate is higher in modulus and strength as a blade prefabricated part, the weight of the blade can be obviously reduced, the strength of the blade is improved, and the blade design is optimized.
At present, in the production process, a plurality of pultruded panels are generally stacked in a mold, materials such as vacuumizing and resin infusion are performed in the mold, and then the pultruded panels form an integrated structure through a curing process, so that the processing of the blade is completed.
However, the blade formed by the pultruded plate in the prior art is easy to generate a large gap at the position of the splicing seam of the pultruded plate, so that a resin enrichment area is formed, air bubbles are entrained, and the technical problem of low strength of the position of the splicing seam is caused; and the width and the thickness of the pultruded plate are limited, the wide and thick pultruded plate and the curved surface of the die are not easy to follow, and a resin enrichment area is easy to form between the pultruded plate and the die.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blade prefab, fan blade and fan equipment can avoid the technical problem that pultrude panel concatenation position produced great gap and was difficult for following the type with the mould.
A first aspect of the present invention provides a blade preform, comprising:
a plurality of first pultrude panels, each first pultrude panel is provided with first boss structure and second boss structure respectively along its width direction's both ends, and first boss structure with position between the second boss structure forms groove structure, arbitrary two first pultrude panel's boss structure can be to piecing together, put into same other first pultrude panel in the groove structure.
According to the utility model provides a blade prefab still includes: a third boss structure is arranged at one end of each second pultrusion plate along the width direction of the second pultrusion plate; the third boss structure can be spliced with the boss structure of any one of the first pultrusion plates into the groove structure of the other first pultrusion plates, and the end part of the second pultrusion plate is flush with the end part of the first pultrusion plate.
According to the utility model provides a blade prefab, first boss structure with second boss structure's thickness is 5 millimeters to 50 millimeters, groove structure's tank bottom thickness is 1 millimeter to 5 millimeters.
According to the utility model provides a blade prefab, first draw the crowded board with the bight position that the second drawn the crowded board all is provided with the chamfer structure.
According to the utility model provides a blade prefab, groove structure's both sides wall is the inclined plane of keeping away from gradually along groove top to tank bottom direction.
According to the utility model provides a blade prefabricated part, first boss structure second boss structure with third boss structure's width all is an, the width of first pultrusion board is b, and wherein, a < b/4.
A second aspect of the present invention provides a fan blade comprising a pultruded panel assembly comprising a blade preform according to any of the above, said pultruded panel assembly comprising a first layer structure and a second layer structure stacked on top of each other, wherein,
the first layer structure comprises a plurality of first pultrusion plates which are arranged side by side along the width direction of the first pultrusion plates;
the second layer structure comprises two second pultrusion plates and a first pultrusion plate arranged between the two second pultrusion plates in parallel; the groove parts and the convex parts in the first layer structure and the second layer structure are mutually matched.
According to the utility model provides a fan blade, the pultrusion plate combination includes the multilayer, and the multilayer the pultrusion plate combination superposes together.
According to the utility model provides a fan blade, the pultrusion plate combination is the arc structure.
A third aspect of the present invention provides a fan apparatus, comprising a fan blade as defined in any one of the above.
Has the advantages that:
one, the utility model provides an among the technical scheme, the blade prefab includes a plurality of first pultruding plates, each first pultruding plate is provided with first boss structure and second boss structure respectively along its width direction's both ends, and first boss structure with position between the second boss structure forms groove structure, arbitrary two first pultruding plate's boss structure can be to piecing together, put into same other first pultruding plate among the groove structure.
When the fan blade is produced by using the blade prefabricated member provided by the utility model, a plurality of first pultrusion plates can be laid in sequence on the bottommost layer of the die, and each first pultrusion plate is arranged along the width direction, the groove structure opening of the first pultrusion plate on the bottommost layer is upward, then the first pultrusion plates are arranged on the secondary bottom layer, the boss structures of any two first pultrusion plates are oppositely spliced and juxtaposed into the groove structure of the first pultrusion plate on the bottommost layer, for example, the first boss structures of any two first pultrusion plates are oppositely spliced and juxtaposed into the groove structure of the first pultrusion plate on the bottommost layer; or the second boss structures of any two first pultrusion plates are oppositely spliced and placed into the groove structure of the first pultrusion plate at the bottommost layer; or the first boss structure of any one first pultrusion plate and the second boss structure of the other first pultrusion plate are spliced and juxtaposed into the groove structure of the first pultrusion plate at the bottommost layer.
A snap-in connection is formed between each pultruded panel and the laying of the pultruded panels of the plurality of layers is performed in this manner.
So set up, first crowded board of drawing is "concave" font structure, and middle thickness is little, and both ends thickness is big, and the flexible in the width direction can laminate with the mould surface after the pressurized on the mould curved surface, has avoided the defect of crowded board of drawing and mould surface clearance and resin enrichment.
Moreover, due to the deformability of the concave-shaped first pultrusion plate, the thickness of the end and the width of the plate can be increased, and when the wind power blade main beam with the same thickness is manufactured, the number of stacked layers and the number of pultrusion plates can be greatly reduced, so that the manufacturing efficiency is improved.
The assembling mode of the pultrusion plate is a buckle type assembling mode, and the splicing seams in the thickness direction are not communicated, so that the strength in the width direction is favorably improved.
After the pultrusion plate splicing seams are connected and fixed by the pultrusion plates on the upper layers of the pultrusion plates, the pultrusion plates are not easy to scatter, the gaps of the pultrusion plate splicing seams in the main beam of the wind power blade can be controlled, and the defect of resin enrichment at the splicing seams is avoided.
Secondly, in the further scheme of the utility model, still include: a third boss structure is arranged at one end of each second pultrusion plate along the width direction of the second pultrusion plate; the third boss structure can be spliced with the boss structure of any one of the first pultrusion plates into the groove structure of the other first pultrusion plates, and the end part of the second pultrusion plate is flush with the end part of the first pultrusion plate.
So configured, when two layers of pultruded panels are combined, the process may be as follows:
firstly, sequentially arranging a plurality of first pultrusion plates along the width direction of the first pultrusion plates, and enabling the groove structure of each first pultrusion plate to be opened upwards so as to form a bottom layer pultrusion plate combination;
then, the upper layer pultrusion plate is combined, when the upper layer pultrusion plate is combined, a third boss structure of a second pultrusion plate is downward and is juxtaposed into a groove structure of a first pultrusion plate at the most lateral side of the bottom layer pultrusion plate combination, then the groove structure of each first pultrusion plate is downward, and the boss structures of each first pultrusion plate are sequentially placed into the groove structures on the bottom layer pultrusion plate; and finally, placing a second pultrusion plate in the groove structure of the first pultrusion plate at the other outermost side of the combination of the bottom layer pultrusion plates.
So set up, the second pultrude panel can fill the vacancy at fan blade's marginal part, makes the fan blade marginal part that forms have better roughness. Thirdly, the utility model also provides a fan blade and fan equipment, it can avoid the pultrusion board concatenation position to produce great gap and be difficult for following the technical problem of type with the mould. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the blade prefabricated member, and is not described in detail here.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a first pultrusion plate structure in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second pultrusion plate structure in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a first pultrusion plate provided with a chamfer structure in an embodiment of the present invention;
FIG. 4 is a schematic view of a combination of pultrusion plates in an embodiment of the present invention;
FIG. 5 is a schematic view of a pultruded beam and a mold according to an embodiment of the present invention;
FIG. 6 is a schematic view of another groove structure of the first pultruded panel according to an embodiment of the present invention;
FIG. 7 is a schematic view of another embodiment of a pultruded beam according to the present invention;
11: a first boss structure; 12: a groove structure; 13: a third boss structure;
14: a chamfering structure; 15: a first pultruded panel; 16: a second pultruded panel;
17: a mold; 18: pulling and extruding the beam; 19: a second boss structure.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A blade preform, a fan blade and a fan apparatus according to embodiments of the present invention will be described with reference to fig. 1-7, wherein the blade preform comprises a plurality of first pultruded panels 15 and a plurality of second pultruded panels 16.
Both ends of each first pultruded panel 15 in its width direction are provided with a first boss structure 11 and a second boss structure 19, respectively, and a position between the first boss structure 11 and the second boss structure 19 forms a groove structure 12. Namely, the cross section of the first pultruded panel 15 is a concave structure, and the thickness of the two end parts of the first pultruded panel 15 is larger, and the thickness of the middle part is smaller. The boss structures of any two first pultruded panels 15 can be jogged into the groove structures 12 of the same other first pultruded panel 15.
For example, the first boss structures 11 of any two first pultruded panels 15 can be assembled into the groove structures 12 of other first pultruded panels; or the second boss structures 19 of any two first pultruded panels 15 can be spliced into the groove structures 12 of the same other first pultruded panel; alternatively, the first land feature 11 of any one first pultruded panel 15 is jogged with the second land feature 19 of another first pultruded panel 15 and is juxtaposed in the groove feature 12 of the same other first pultruded panel 15.
The first boss structure 11 and the second boss structure 19 may be identical in structural size, although in other embodiments the first boss structure 11 and the second boss structure 19 may be different in structural size.
One end of each second pultruded panel 16 in the width direction thereof is provided with a third boss structure 13, that is, the second pultruded panel 16 has a step-shaped structure including a portion having a larger thickness and a portion having a smaller thickness, and the two portions form a step surface.
The second pultruded panel 16 may be regarded as a half of the first pultruded panel 15, i.e. divided by taking the symmetric center line of the first pultruded panel 15 as the center, two second pultruded panels 16 may be formed.
The third boss formation 13 of the second pultruded panel 16 may be mateable with any one of the first boss formations 11 into the recess formation 12 of the same other first pultruded panel 15.
When two layers of pultruded panels are combined, the process may be as follows:
firstly, sequentially arranging a plurality of first pultruded panels 15 along the width direction thereof, wherein the groove structure 12 of each first pultruded panel 15 opens upwards, so as to form a bottom layer pultruded panel assembly;
then, the upper layer pultrusion plate is combined, when the upper layer pultrusion plate is combined, the third boss structure 13 of one second pultrusion plate 16 is downward and is juxtaposed into the groove structure 12 of one first pultrusion plate 15 at the most lateral side of the bottom layer pultrusion plate combination, then the groove structure 12 of each first pultrusion plate 15 is downward, and the first boss structure 11 of each first pultrusion plate 15 is sequentially placed into the groove structure 12 on the bottom layer pultrusion plate; finally, a second pultruded panel 16 is placed in the groove structure 12 of the first pultruded panel 15 at the other outermost side of the combination of the bottom pultruded panels, as shown in fig. 4;
thus, the upper pultrusion plate carries out buckling combination on the lower pultrusion plate;
finally, the arrangement of the multi-layer pultruded panel assembly is performed as described above to form a pultruded beam 18, as shown in FIG. 5.
With the arrangement, the first pultrusion plate 15 is of a concave structure, the middle thickness is small, the two ends of the first pultrusion plate are thick, the first pultrusion plate can deform in the width direction, and the first pultrusion plate can be attached to the curved surface of the die 17 after being pressed on the curved surface of the die 17, as shown in fig. 5, so that the defects of a gap between the pultrusion plate and the curved surface of the die 17 and resin enrichment are overcome.
Moreover, due to the deformability of the concave-shaped first pultrusion plate 15, the thickness of the end and the width of the plate can be increased, and when the wind power blade main beam with the same thickness is manufactured, the number of stacked layers and the number of pultrusion plates can be greatly reduced, so that the manufacturing efficiency is improved.
The assembling mode of the pultrusion plate is a buckle type assembling mode, and the splicing seams in the thickness direction are not communicated, so that the strength in the width direction is favorably improved.
After the pultrusion plate splicing seams are connected and fixed by the pultrusion plates on the upper layers of the pultrusion plates, the pultrusion plates are not easy to scatter, the gaps of the pultrusion plate splicing seams in the main beam of the wind power blade can be controlled, and the defect of resin enrichment at the splicing seams is avoided.
In a further embodiment, the first boss structure 11, the second boss structure 19 and the third boss structure 13 all have a width and the first pultruded panel 15 has a width b, wherein a < b/4. Further, b/4-a is 0.5 mm to 5 mm.
With the arrangement, when the two first boss structures 11 are placed in the groove structures 12 of the same first pultrusion plate 15, a small gap is left between the two first boss structures 11, and the gap can be between 2 and 10 millimeters, so that the diversion fabric and the resin can be conveniently laid, and the pultrusion plates can be better combined.
In a further embodiment, the thickness of the two end portions of the first pultruded panel 15 is 8 mm to 30 mm, the thickness of the first boss structure 11 and the second boss structure 19 of the first pultruded panel 15 is 5 mm to 50 mm, the thickness of the groove bottom of the groove structure is 0.5 mm to 5 mm, and further, the thickness of the groove bottom of the groove structure may be 0.5 mm to 3 mm. With such an arrangement, the two end portions of the first pultrusion plate 15 are thicker, and the middle portion of the first pultrusion plate 15 is thinner, so that when the first pultrusion plate is placed in the die 17 with the arc-shaped surface, the first pultrusion plate 15 is easily deformed correspondingly along with the die 17. And the thickness of the two ends of the first pultrusion plate 15 is larger, so that the number of layers for laying the pultrusion plates can be reduced.
In some embodiments, the corner locations of both the first pultruded panel 15 and the second pultruded panel 16 are provided with chamfered structures 14. The chamfering structure 14 may be specifically configured as a round chamfer or a straight chamfer, and may be specifically configured according to actual conditions.
In addition, the groove structure 12 in the first pultruded panel 15 may be a rectangular parallelepiped groove, or may be a groove with another shape, for example, the groove structure may have a trapezoidal cross section, that is, two side walls of the groove structure 12 are inclined surfaces gradually separated from each other along a direction from the top of the groove to the bottom of the groove. As shown in fig. 6 and 7.
The embodiment of the utility model also provides a fan blade, which comprises a pultrusion plate combination, wherein the pultrusion plate combination comprises the blade prefabricated member as described in any one of the above embodiments, the pultrusion plate combination comprises a first layer structure and a second layer structure which are mutually overlapped, wherein,
the first layer structure comprises a plurality of first pultruded panels 15, the plurality of first pultruded panels 15 being arranged side by side along the width direction thereof;
the second layer structure comprises two second pultrusion plates 16 and a first pultrusion plate 15 which is arranged between the two second pultrusion plates 16 side by side; the groove parts and the convex parts in the first layer structure and the second layer structure are mutually matched.
So set up, fan blade's two-layer adjacent first pultrusion plate 15 forms the lock joint structure, and is difficult for scattering, can control fan blade pultrusion plate splice joint's clearance, avoids the defect of the shaping resin enrichment in splice joint position.
In a further embodiment, the mould 17 face is the arc structure, and the fan blade that this embodiment provided can with mould 17 surface laminating when the preparation, has avoided the defect of pultruding plate and mould 17 surface clearance and resin enrichment.
And the assembly mode of the pultruded plate of the fan blade is the buckle type assembly, and the splicing seam in the thickness direction is not communicated, thereby being beneficial to improving the strength in the width direction.
The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the blade prefabricated member, and is not described in detail here.
The embodiment of the utility model provides an in still provide a fan equipment, include as above arbitrary fan blade. So set up, the fan equipment that this embodiment provided can avoid the crowded board concatenation position of drawing to produce great gap and be difficult for following the technical problem of type with mould 17. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the blade prefabricated member, and is not described in detail here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A vane preform, comprising:
a plurality of first pultrude panels, each first pultrude panel is provided with first boss structure and second boss structure respectively along its width direction's both ends, and first boss structure with position between the second boss structure forms groove structure, arbitrary two first pultrude panel's boss structure can be to piecing together, put into same other first pultrude panel in the groove structure.
2. The blade preform of claim 1, further comprising: a third boss structure is arranged at one end of each second pultrusion plate along the width direction of the second pultrusion plate; the third boss structure can be spliced with the boss structure of any one of the first pultrusion plates into the groove structure of the other first pultrusion plates, and the end part of the second pultrusion plate is flush with the end part of the first pultrusion plate.
3. The vane preform of claim 1, wherein the first boss structure and the second boss structure have a thickness of 5 mm to 50 mm, and the groove bottom of the groove structure has a thickness of 1 mm to 5 mm.
4. The bucket preform of claim 2, wherein corner locations of the first pultruded panel and the second pultruded panel are each provided with a chamfered structure.
5. The vane preform of claim 1, wherein the two sidewalls of the groove structure are inclined surfaces that are gradually distant from each other in a groove top-to-groove bottom direction.
6. The vane preform of claim 2, wherein the first boss structure, the second boss structure, and the third boss structure all have a width, and the first pultruded panel has a width, b, wherein a < b/4.
7. A fan blade comprising a pultruded panel assembly comprising a blade preform according to any of claims 1-6, said pultruded panel assembly comprising a first layer structure and a second layer structure on top of each other, wherein,
the first layer structure comprises a plurality of first pultrusion plates which are arranged side by side along the width direction of the first pultrusion plates;
the second layer structure comprises two second pultrusion plates and a first pultrusion plate which is arranged between the two second pultrusion plates side by side; the groove parts and the bulge parts in the first layer structure and the second layer structure are mutually matched.
8. The fan blade of claim 7 wherein the pultruded panel combination comprises a plurality of layers and the plurality of layers of pultruded panel combinations are stacked together.
9. The fan blade of claim 8 wherein the pultruded panels combine to form an arcuate structure.
10. A fan device comprising a fan blade as claimed in any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743966.2U CN216429838U (en) | 2021-11-10 | 2021-11-10 | Blade prefabricated part, fan blade and fan equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743966.2U CN216429838U (en) | 2021-11-10 | 2021-11-10 | Blade prefabricated part, fan blade and fan equipment |
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| Publication Number | Publication Date |
|---|---|
| CN216429838U true CN216429838U (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122743966.2U Active CN216429838U (en) | 2021-11-10 | 2021-11-10 | Blade prefabricated part, fan blade and fan equipment |
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| Country | Link |
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| CN (1) | CN216429838U (en) |
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- 2021-11-10 CN CN202122743966.2U patent/CN216429838U/en active Active
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