CN216811192U - Composite material conical tower - Google Patents
Composite material conical tower Download PDFInfo
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- CN216811192U CN216811192U CN202220402922.5U CN202220402922U CN216811192U CN 216811192 U CN216811192 U CN 216811192U CN 202220402922 U CN202220402922 U CN 202220402922U CN 216811192 U CN216811192 U CN 216811192U
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Abstract
The utility model discloses a composite material conical tower which comprises a plurality of first winding layers wound into a conical shape; the first winding layer at the top end of the tower is in a step shape; and a second winding layer with a set number of layers is wound outside the first winding layer, and the lower part of the second winding layer has a set distance from the root of the tower. The first winding layer comprises a hand-pasted unidirectional cloth layer and a hoop winding layer which are sequentially wound at intervals from inside to outside. The first winding layer of the utility model adopts a structure of combining a hand-pasted unidirectional cloth layer and an annular winding layer, and the structure is optimized. The structural form can obviously improve the specific strength of the composite material conical tower, exert the mechanical property to the maximum extent, reduce the integral wall thickness difference and improve the aesthetic degree.
Description
Technical Field
The utility model relates to the technical field of power and communication transmission, in particular to a composite material conical tower.
Background
The pole tower is an important special supporting structure in basic facilities such as power transmission, communication, railways, airports, municipal administration and the like, and the structural performance of the pole tower directly influences the safety, the economy and the reliability of a line. The application in overhead line engineering is very wide, the number is huge, and the market demand potential is very considerable. As a novel tower, the composite material conical tower is an ideal choice for structural materials of power transmission poles and towers due to its excellent comprehensive properties, such as high strength, light weight, corrosion resistance, electric insulation and the like, and is beginning to be concerned by electric power and communication industries at home and abroad. Generally, a composite material tapered tower is formed by a winding process, and due to process limitations, a yarn stacking phenomenon can be generated when the composite material tapered tower is wound from a large end to a small end, so that the wall thickness of the large end with large bearing capacity is thin, the wall thickness of the small end with small bearing capacity is large, the whole mechanical performance of the composite material tapered tower is seriously influenced, the specific strength is reduced, and meanwhile, the attractiveness is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a composite material conical tower, which can obviously improve the specific strength of the composite material conical tower, exert the mechanical property to the maximum extent, reduce the integral wall thickness difference and improve the attractiveness.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a composite material conical tower comprises a plurality of first winding layers wound into a conical shape;
the first winding layer at the top end of the tower is in a step shape;
and a second winding layer with a set number of layers is wound outside the first winding layer, and the lower part of the second winding layer has a set distance from the root of the tower.
The first winding layer comprises a hand-pasted unidirectional cloth layer and a hoop winding layer which are sequentially wound at intervals from inside to outside.
At the top end of the tower,
the hand-pasted unidirectional cloth layer is a set distance away from the hand-pasted unidirectional cloth layer on the inner layer, and is in a step shape;
the edge of the circumferential winding layer is in contact with the circumferential winding layer on the inner layer and is also in a step shape.
The circumferential winding layer is a 90-degree fiber layer.
The second winding layer is a hand lay-up unidirectional cloth layer and an annular winding layer which are wound at intervals, and the second winding layer and the first winding layer form a step shape at the top end of the tower.
The distance between the lower part of the second winding layer and the root of the tower is 0.6-2 cm.
The utility model has the beneficial effects that:
the novel structural form can obviously improve the specific strength of the composite material conical tower, exert the mechanical property to the maximum extent, reduce the integral wall thickness difference and improve the attractiveness.
Drawings
FIG. 1 is a block diagram of the present invention;
the fabric comprises a first hand-pasted unidirectional fabric layer, a second hand-pasted unidirectional fabric layer, a first circumferential winding layer, a second circumferential winding layer, a third hand-pasted unidirectional fabric layer, a third circumferential winding layer, a fourth hand-pasted unidirectional fabric layer, a fifth hand-pasted unidirectional fabric layer and a sixth hand-pasted unidirectional fabric layer, wherein the first hand-pasted unidirectional fabric layer is 1, the second hand-pasted unidirectional fabric layer is 2, the third hand-pasted unidirectional fabric layer is 3, the second hand-pasted unidirectional fabric layer is 4, the second circumferential winding layer is 5, the third hand-pasted unidirectional fabric layer is 6, the third circumferential winding layer is 7, and the fifth hand-pasted unidirectional fabric layer is 8.
The specific implementation mode is as follows:
the utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
a composite material conical tower comprises a plurality of first winding layers wound into a conical shape;
the first winding layer at the top end of the tower is in a step shape;
and a second winding layer with a set number of layers is wound outside the first winding layer, and the lower part of the second winding layer has a set distance from the root of the tower. The distance between the lower part of the second winding layer and the root of the tower is 0.6m-2cm, and can be set to be 0.6m, 0.8m, 1m, 1.2m, 1.4m, 1.6m, 1.8m or 2m according to actual needs.
The first winding layer comprises a hand-pasted unidirectional cloth layer and a hoop winding layer which are sequentially wound at intervals from inside to outside. The annular winding layer is a 90-degree fiber layer.
At the top end of the tower,
the hand-pasted unidirectional cloth layer is a set distance away from the hand-pasted unidirectional cloth layer on the inner layer, and is in a step shape;
the edge of the circumferential winding layer is in contact with the circumferential winding layer on the inner layer and is also in a step shape. That is, the outermost layer is a step-shaped hoop winding layer when viewed from the top end of the tower, and the top ends of the hand lay-up unidirectional fabric layers are all arranged at the lower part of the hoop winding layer and are also in a step shape with the inner hand lay-up unidirectional fabric layer.
As shown in fig. 1, the first winding layer comprises a first hand-pasted unidirectional fabric layer 1, a first circumferential winding layer 2, a second hand-pasted unidirectional fabric layer 3, a second circumferential winding layer 4, a third hand-pasted unidirectional fabric layer 5 and a third circumferential winding layer 6 from inside to outside; the second winding layer comprises an nth hand lay-up unidirectional fabric layer 7 and an nth circumferential winding layer 8.
When the composite material conical tower is manufactured, the following method can be adopted:
step one, clamping a mould on winding equipment, carrying out unidirectional fiber cloth laying forming on the surface of the whole mould through a hand lay-up process, and uniformly spreading a cloth layer through the rotation of the winding equipment to finish a first hand lay-up unidirectional cloth layer 1;
winding 90-degree fibers on the first hand-pasted unidirectional cloth layer 1 by using a winding process, and winding the whole body with tension to finish a first annular winding layer 2;
step three, manufacturing a second hand-paste unidirectional cloth layer 3 on the first annular winding layer 2 by a hand-paste process, wherein the second hand-paste unidirectional cloth layer 3 has a certain distance from the small end of the product and forms a step with the first hand-paste unidirectional cloth layer 1;
step four, winding 90-degree fibers on the second hand-pasted unidirectional cloth layer 3, and winding the whole body with tension to complete a second annular winding layer 4;
fifthly, a third hand-pasted unidirectional cloth layer 5 is manufactured on the second annular winding layer 4 by a hand-pasted process, and the third hand-pasted unidirectional cloth layer 5 has a certain distance from the small end of the product and forms a step with the second annular winding layer 4;
step six, winding 90-degree fibers on the third hand-pasted unidirectional cloth layer 5, and winding the whole body with tension to complete a third annular winding layer 6;
seventhly, layering in the steps is sequentially carried out according to software analysis or test results, and excessive mechanical property requirements are not needed as the root part of the tower is partially buried underground; in the embodiment, the second winding layer comprises a hand lay-up unidirectional cloth layer and a circumferential winding layer which are wound at intervals and similar to the first winding layer, but the second winding layer has a certain distance from both ends of the tower, and the end heads are in a step shape;
and step eight, curing and forming the product to finish the manufacturing.
The first winding layer of the utility model adopts a structure of combining a hand-pasted unidirectional cloth layer and an annular winding layer, and the structure is optimized.
The hoop winding layer is wound by a 90-degree fiber laying layer, the cross section bearing capacity of the composite material tower is enhanced, the overall compactness of the tower is improved through winding tension, the fiber content is increased, and the defect of a hand lay-up process is overcome. Meanwhile, when the circumferential winding layer is wound by the 90-degree fiber laying layer, the yarn sliding phenomenon from the large end to the small end is small, and the yarn stacking condition is not serious.
Hand is pasted one-way cloth layer and is spread the layer with one-way fiber cloth ladder, improves the axial mechanical properties of combined material shaft tower, through the cloth layer design of ladder, the position that the bodiness stress is the biggest, the less position of attenuate stress. Meanwhile, the whole thickness difference generated by yarn stacking in the winding process is compensated, so that the whole thickness tends to be uniform, and the attractiveness is improved.
The layering structure can be designed and optimized according to the actual stress condition of the product, so that the specific strength of the composite material conical tower is greatly improved, and the mechanical property of the composite material conical tower is exerted to the maximum extent. Meanwhile, the thickness difference is reduced, the integral wall thickness is uniform, the attractiveness is improved, and the market competitiveness of the product is enhanced.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the utility model, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes in the technical solutions of the present invention.
Claims (6)
1. A conical tower made of composite materials is characterized by comprising a plurality of first winding layers wound into a conical shape;
the first winding layer at the top end of the tower is in a step shape;
and a second winding layer with a set number of layers is wound outside the first winding layer, and the lower part of the second winding layer has a set distance from the root of the tower.
2. The composite material conical tower according to claim 1, wherein the first winding layer comprises a hand lay-up unidirectional fabric layer and a hoop winding layer which are wound at intervals in sequence from inside to outside.
3. A composite material tapered tower as claimed in claim 2 in which, at the top end of the tower,
the hand-pasted unidirectional cloth layer is a set distance away from the hand-pasted unidirectional cloth layer on the inner layer, and is in a step shape;
the edge of the hoop winding layer is contacted with the hoop winding layer of the inner layer and is also in a step shape.
4. The composite material conical tower of claim 2, wherein said hoop wound layers are 90 ° fiber layers.
5. The tapered tower as claimed in claim 1, wherein said second winding layer is a hand lay-up unidirectional cloth layer and a hoop winding layer wound at intervals, and said second winding layer is stepped from said first winding layer at the top end of the tower.
6. A composite material conical tower according to claim 1, wherein the lower part of said second wound layer is spaced from the root of the tower by a distance of 0.6m to 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402922.5U CN216811192U (en) | 2022-02-25 | 2022-02-25 | Composite material conical tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402922.5U CN216811192U (en) | 2022-02-25 | 2022-02-25 | Composite material conical tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811192U true CN216811192U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220402922.5U Active CN216811192U (en) | 2022-02-25 | 2022-02-25 | Composite material conical tower |
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| Country | Link |
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| CN (1) | CN216811192U (en) |
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- 2022-02-25 CN CN202220402922.5U patent/CN216811192U/en active Active
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