CN212061905U - Wind-resistant overhead steel-cored aluminum stranded wire - Google Patents
Wind-resistant overhead steel-cored aluminum stranded wire Download PDFInfo
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- CN212061905U CN212061905U CN202020947817.0U CN202020947817U CN212061905U CN 212061905 U CN212061905 U CN 212061905U CN 202020947817 U CN202020947817 U CN 202020947817U CN 212061905 U CN212061905 U CN 212061905U
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Abstract
The utility model discloses an anti-wind built on stilts aluminium conductors (cable), including central galvanized steel wire, first steel strand layer, first aluminium strand layer and second aluminium strand layer, first steel strand layer includes a plurality of circular galvanized steel wires that are ring shape and distribute, and a plurality of circular galvanized steel wires encircle in the outside of central galvanized steel wire, first aluminium strand layer includes a plurality of circular aluminium monofilaments that are ring shape and distribute, a plurality of circular aluminium monofilaments encircle the outside on first steel strand layer, second aluminium strand layer includes a plurality of circular aluminium monofilaments that are the difference of diameter of oval ring shape and distribute, the circular aluminium monofilament that a plurality of diameters are different encircles the outside on first aluminium strand layer. The utility model has the advantages of ingenious conception, compact and reasonable structure, and the projection diameter in the wind direction is constantly changed, thereby reducing the shearing force generated by transverse wind; the helical surface enables the torsion strength of the overhead stranded wire to be larger, the bending strength is constantly changed, the swinging and shaking under the action of wind power or load are reduced, and the wind resistance and the load capacity to ice are enhanced.
Description
Technical Field
The utility model relates to a power transmission wire technical field especially relates to an aerial steel-cored aluminum strand wires of anti-wind.
Background
With the rapid development of economy, the electricity production and sales volume is always increased year by year, new opportunities are provided for the development of the electricity industry, and new challenges are faced along with the opportunities. Due to the difference between the climate characteristics and the geographic environment, different areas have different requirements on the wind-resistant reinforcement design of the distribution network overhead line. Because in coastal areas, typhoon landing times are frequent; in northwest areas, windy weather often appears, and due to the limitation of terrain and environmental factors in the laying of overhead conductors, the line span is generally larger, and the wind resistance is weakened. The common overhead steel-cored aluminum strand has poor torsional strength, so that the wind resistance of the line in the area has obvious defects. In addition, ordinary built on stilts aluminium conductors steel-cored wire is poor to ice load carrying capacity, especially in extreme weather, ordinary built on stilts aluminium conductors steel-cored wire receives the influence easily, and extreme bad weather is the power consumption peak period again just, and a large amount of heating equipment supply power inadequately easily, therefore improve overhead line's wind resistance and anti ice stability and be imperative.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anti-wind built on stilts aluminium conductors (cable) steel-reinforced has characteristics of anti-wind, anti-ice, anti-shake can be good, stability is good, high mechanical strength, high tensile strength, has solved the ordinary aluminium conductors (cable) steel-reinforced of prior art anti-wind ability poor, the poor problem of ice load capacity.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an anti-wind built on stilts steel-cored aluminum strand wires, including central galvanized steel wire, first steel strand layer, first aluminum strand layer and second aluminum strand layer, first steel strand layer includes a plurality of circular galvanized steel wires that are ring shape and distribute, and is a plurality of circular galvanized steel wire encircles the outside of central galvanized steel wire, first aluminum strand layer includes a plurality of circular aluminum monofilament that are ring shape and distribute, and is a plurality of circular aluminum monofilament encircles the outside on first steel strand layer, second aluminum strand layer includes a plurality of circular aluminum monofilament that are the difference of oval annular distribution's diameter, and the circular aluminum monofilament that a plurality of diameters are different encircles the outside on first aluminum strand layer.
Preferably, the second aluminum stranded wire layer comprises a first aluminum monofilament, a second aluminum monofilament, a third aluminum monofilament and a fourth aluminum monofilament, and the first aluminum monofilament, the second aluminum monofilament, the third aluminum monofilament and the fourth aluminum monofilament are sequentially arranged on the outer side of the first aluminum stranded wire layer and are in an elliptical ring shape.
Preferably, the first aluminum monofilament, the second aluminum monofilament, the third aluminum monofilament and the fourth aluminum monofilament are arranged at positions where the diameters of the first aluminum monofilament, the second aluminum monofilament, the third aluminum monofilament and the fourth aluminum monofilament are gradually increased from the short axis to the end point direction of the long axis.
Preferably, the diameter of the first aluminum monofilament is the same as that of the central galvanized steel wire, the diameter of the second aluminum monofilament is 1.1 to 1.5 times of that of the central galvanized steel wire, the diameter of the third aluminum monofilament is 1.6 to 2.0 times of that of the central galvanized steel wire, and the diameter of the fourth aluminum monofilament is 2.1 to 2.5 times of that of the central galvanized steel wire.
Preferably, the diameter of the round galvanized steel wires of the first steel strand layer is equal to the diameter of the central galvanized steel wires, and the number of the galvanized steel wires of the round galvanized steel wires of the first steel strand layer is greater than that of the central galvanized steel wires.
Preferably, the diameter of the round aluminum monofilament of the first aluminum strand layer is equal to the diameter of the central galvanized steel wire, and the number of the round aluminum strands of the first aluminum strand layer is greater than that of the round galvanized steel wires of the first steel strand layer.
Preferably, the central galvanized steel wire, the first steel strand layer, the first aluminum strand layer and the second aluminum strand layer are combined into a whole, and then the appearance is spiral
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses an anti-wind built on stilts steel-cored aluminum strand wires, including central galvanized steel wire, first steel strand layer, first aluminium strand layer and the second aluminium strand layer that intertwine together, wherein, second aluminium strand layer includes a plurality of circular aluminium monofilaments that are the difference of oval annular distribution's diameter, and the circular aluminium monofilament that a plurality of diameters are different encircles in the outside on first aluminium strand layer. The utility model has the advantages of ingenious conception and compact and reasonable structure, the cross section of the overhead steel-cored aluminum strand is oval by adjusting the number and the diameter of the outermost aluminum monofilaments, the outer surface of the overhead steel-cored aluminum strand is spiral, and the projection diameter in the wind power direction is constantly changed, thereby greatly reducing the shearing force of transverse wind to the overhead steel-cored aluminum strand; in addition, the torsion strength of the overhead steel-cored aluminum strand is higher due to the spiral surface, the bending strength is continuously changed, the swinging and shaking of the overhead steel-cored aluminum strand under the action of wind power or load are further reduced, the wind resistance and the ice load resistance of the overhead steel-cored aluminum strand are enhanced, and the stability of the overhead steel-cored aluminum strand is improved.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic cross-sectional view of an anti-wind overhead steel-cored aluminum strand of the present invention;
FIG. 2 is a schematic view of the shape of the anti-wind overhead steel-cored aluminum strand of the present invention;
description of reference numerals: 1. a central galvanized steel wire; 2. a first steel strand layer; 3. a first aluminum strand layer; 4. a first aluminum monofilament; 5. a second aluminum monofilament; 6. a third aluminum monofilament; 7. a fourth aluminum monofilament.
Detailed Description
As shown in fig. 1-2, a wind-resistant overhead steel-cored aluminum strand comprises a central galvanized steel wire 1, a first steel strand layer 2, a first aluminum strand layer 3 and a second aluminum strand layer, wherein the first steel strand layer 2 comprises a plurality of circular galvanized steel wires distributed in a circular ring shape, the circular galvanized steel wires surround the central galvanized steel wire 1, the first aluminum strand layer 3 comprises a plurality of circular aluminum monofilaments distributed in a circular ring shape, the circular aluminum monofilaments surround the first steel strand layer 2, the second aluminum strand layer comprises a plurality of circular aluminum monofilaments distributed in an elliptical ring shape and different in diameter, and the circular aluminum monofilaments different in diameter surround the first aluminum strand layer 3; the projection diameter of the overhead steel-cored aluminum strand on the wind direction is constantly changed due to the oval annular appearance, so that the shearing force of transverse wind on the overhead steel-cored aluminum strand is greatly reduced. Specifically, the appearance of the composite steel-cored wire 1, the first steel strand layer 2, the first aluminum strand layer 3 and the second aluminum strand layer is spiral after being combined into a whole, the spiral surface enables the torsion strength of the overhead steel-cored aluminum strand to be larger, the bending strength is constantly changed, the swinging and shaking of the overhead steel-cored aluminum strand under the action of wind power or load are further reduced and eliminated, the wind resistance and the ice load capacity of the overhead steel-cored aluminum strand are enhanced, and the stability of the overhead steel-cored aluminum strand is improved.
Specifically, the second aluminum twisted wire layer comprises a first aluminum monofilament 4, a second aluminum monofilament 5, a third aluminum monofilament 6 and a fourth aluminum monofilament 7, and the first aluminum monofilament 4, the second aluminum monofilament 5, the third aluminum monofilament 6 and the fourth aluminum monofilament 7 are sequentially arranged on the outer side of the first aluminum twisted wire layer 3 and are in an elliptical ring shape. The diameters of the arrangement positions of the first aluminum monofilament 4, the second aluminum monofilament 5, the third aluminum monofilament 6 and the fourth aluminum monofilament 7 are gradually increased from the short axis to the end point direction of the long axis. The diameter of the first aluminum monofilament 4 is the same as that of the central galvanized steel wire 1, the diameter of the second aluminum monofilament 5 is 1.1-1.5 times, preferably 1.2 times, the diameter of the third aluminum monofilament 6 is 1.6-2.0 times, preferably 1.8 times, the diameter of the fourth aluminum monofilament 7 is 2.1-2.5 times, preferably 2.3 times, the diameter of the central galvanized steel wire 1.
As shown in fig. 1, the diameter of the round galvanized steel wires of the first steel strand layer 2 is equal to the diameter of the central galvanized steel wire 1, and the number of the galvanized steel wires of the round galvanized steel wires of the first steel strand layer 2 is greater than the number of the central galvanized steel wires 1. The diameter of the round aluminum monofilament of the first aluminum stranded wire layer 3 is equal to that of the central galvanized steel wire 1, and the number of the round aluminum stranded wires of the first aluminum stranded wire layer 3 is greater than that of the round galvanized steel wires of the first steel stranded wire layer 1.
The utility model discloses a manufacture process as follows:
firstly, in the stranding process of an overhead steel-cored aluminum strand, a central galvanized steel wire 1 is arranged at the center of the strand, a first steel strand layer 2 is arranged on the outer surface of the central galvanized steel wire 1, the first steel strand layer 2 comprises six round galvanized steel wires distributed in a circular ring shape, and the set pitch-diameter ratio range of the stranding pitch of the first steel strand layer 2 is 20-22. The outer surface of the first steel strand layer 2 is provided with a first aluminum strand layer 3, the first aluminum strand layer 3 comprises 12 round aluminum monofilaments distributed in a circular ring shape, and the range of the set pitch-diameter ratio of the stranding pitch of the first aluminum strand layer 3 is 15-17. A second aluminum stranded wire layer is arranged on the outer surface of the first aluminum stranded wire layer 3, the second aluminum stranded wire layer comprises four first aluminum monofilaments 4 with the same diameter as the central aluminum monofilament, and four second aluminum monofilaments 5 with the diameter 1.2 times that of the central aluminum monofilament; four third aluminum monofilaments 6 with a diameter 1.8 times the diameter of the central aluminum monofilament; two fourth aluminum monofilaments 7 with a diameter 2.3 times the diameter of the central aluminum monofilament.
The second aluminum stranded wire layer is arranged at four aluminum monofilament positions with different diameters as shown in the attached drawing 1, the twisting pitch of the second aluminum stranded wire layer is set to be 13-15 times of the length of the short elliptic shaft, the number and the diameter of the second aluminum stranded wire layer stranded wires on the outermost side are adjusted, so that the cross section of the overhead steel-cored aluminum stranded wire is elliptic, the outer surface of the overhead steel-cored aluminum stranded wire is spiral, the wind resistance and the ice load capacity of the overhead steel-cored aluminum stranded wire are effectively improved, and the stability of the overhead steel-cored aluminum stranded wire is improved.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides an anti-wind built on stilts aluminum conductors steel-cored which characterized in that: including central galvanized steel wire (1), first steel strand layer (2), first aluminium strand layer (3) and second aluminium strand layer, first steel strand layer (2) are including a plurality of circular galvanized steel wires that are ring shape and distribute, and are a plurality of circular galvanized steel wire encircle in the outside of central galvanized steel wire (1), first aluminium strand layer (3) are including a plurality of circular aluminium monofilaments that are ring shape and distribute, and are a plurality of circular aluminium monofilament encircles the outside of first steel strand layer (2), second aluminium strand layer is including a plurality of circular aluminium monofilaments that are the difference of diameter of oval ring shape and distribute, and the circular aluminium monofilament that a plurality of diameters are different encircles the outside of first aluminium strand layer (3).
2. The wind-resistant overhead aluminum conductor steel-cored wire of claim 1, wherein: the second aluminum stranded wire layer comprises first aluminum monofilaments (4), second aluminum monofilaments (5), third aluminum monofilaments (6) and fourth aluminum monofilaments (7), and the first aluminum monofilaments (4), the second aluminum monofilaments (5), the third aluminum monofilaments (6) and the fourth aluminum monofilaments (7) are sequentially arranged on the outer side of the first aluminum stranded wire layer (3) and are in an elliptical ring shape.
3. The wind-resistant overhead aluminum conductor steel-cored wire of claim 2, wherein: the diameters of the arrangement positions of the first aluminum monofilament (4), the second aluminum monofilament (5), the third aluminum monofilament (6) and the fourth aluminum monofilament (7) are gradually increased from the short axis to the end point direction of the long axis.
4. The wind-resistant overhead aluminum conductor steel-cored wire of claim 3, wherein: the diameter of the first aluminum monofilament (4) is the same as that of the central galvanized steel wire (1), the diameter of the second aluminum monofilament (5) is 1.1-1.5 times of that of the central galvanized steel wire (1), the diameter of the third aluminum monofilament (6) is 1.6-2.0 times of that of the central galvanized steel wire (1), and the diameter of the fourth aluminum monofilament (7) is 2.1-2.5 times of that of the central galvanized steel wire (1).
5. The wind-resistant overhead aluminum conductor steel-cored wire of claim 1, wherein: the diameter of the round galvanized steel wires of the first steel strand layer (2) is equal to that of the central galvanized steel wires (1), and the number of the galvanized steel wires of the round galvanized steel wires of the first steel strand layer (2) is larger than that of the central galvanized steel wires (1).
6. The wind-resistant overhead aluminum conductor steel-cored wire of claim 1, wherein: the diameter of the round aluminum monofilament of the first aluminum stranded wire layer (3) is equal to that of the central galvanized steel wire (1), and the number of round aluminum stranded wires of the first aluminum stranded wire layer (3) is larger than that of the round galvanized steel wires of the first steel stranded wire layer (2).
7. The wind-resistant overhead aluminum conductor steel-cored wire of claim 1, wherein: the appearance is the heliciform after central galvanized steel wire (1), first steel strand layer (2), first aluminium strand layer (3) and the compound as an organic whole of second aluminium strand layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020947817.0U CN212061905U (en) | 2020-05-29 | 2020-05-29 | Wind-resistant overhead steel-cored aluminum stranded wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020947817.0U CN212061905U (en) | 2020-05-29 | 2020-05-29 | Wind-resistant overhead steel-cored aluminum stranded wire |
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| Publication Number | Publication Date |
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| CN212061905U true CN212061905U (en) | 2020-12-01 |
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| CN202020947817.0U Active CN212061905U (en) | 2020-05-29 | 2020-05-29 | Wind-resistant overhead steel-cored aluminum stranded wire |
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| CN (1) | CN212061905U (en) |
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