CN204667986U - A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire - Google Patents
A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire Download PDFInfo
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- CN204667986U CN204667986U CN201520420194.0U CN201520420194U CN204667986U CN 204667986 U CN204667986 U CN 204667986U CN 201520420194 U CN201520420194 U CN 201520420194U CN 204667986 U CN204667986 U CN 204667986U
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Abstract
The utility model provides a kind of heavy in section aluminium alloy core, aluminium molded line twisted wire, which reduce the diameter of the twisted wire in equal transport cross section and superficies smooth, reduce windage, and make Product transport convenient.A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire, it is characterized in that: it comprises unlined aluminium alloy core wire, outer field duralumin molded line, it is unlined aluminium alloy core wire in the inner chamber that described outer field duralumin molded line is combined to form, described outer duralumin molded line is specially two-layer, be specially the first duralumin molded line layer, second duralumin molded line layer, the duralumin molded line layer of every layer is combined to form corresponding closed circular annuli arrangement by the duralumin molded line in several isosceles trapezoid cross sections, the wherein upper base in the isosceles trapezoid cross section corresponding to rigid aluminium profiles line of every layer, bottom is circular arc limit, be specially inner circle arc-shaped side, cylindrical arc-shaped side, the inner circle arc-shaped side of the duralumin molded line of every layer is close to the cylindrical arc-shaped side of the duralumin molded line of adjacent inner layer, described unlined aluminium alloy core wire comprises four-layer structure.
Description
Technical field
The utility model relates to electrical lead technical field, is specially a kind of heavy in section aluminium alloy core, aluminium molded line twisted wire.
Background technology
Extra-high voltage grid is called as " electric power highway ", compared with existing electrical network, has that capacity is large, a feature that distance, loss are low, the configuration of large-scale resources advantage can be realized, effectively economize the land resource, save construction investment and operating cost, reduce the impact of matchmaker's electricity environmental pollution.
Chinese national economy grow continuously and fast to the demand of electric power in continuous increase, according to the planning of Guo Wang Construction Company Limited, in recent years, 1100kV UHV transmission line will be focused the consruction on.Building extra-high voltage grid is realize the western and eastern of China Coordinated Development of Region to bring huge motive force, will greatly improve the capability of independent innovation of China's technology of transmission of electricity level and power transmission and transforming equipment enterprise simultaneously.China exchanges the construction of 1100kV transmission line, and need corresponding electric equipment and equipment, wherein relevant with cable industry is the UHV transmission wires such as large-section lead, expanded conductor, low-noise lead.
UHV Overhead Transmission Line wire is the important topic of UHV transmission technology, and it not only will meet the requirement of circuit transmission of electric energy, will ensure that circuit can run and meet the requirement of environmental protection safely and reliably simultaneously, but also wants economical suitable.Therefore, the many factors such as the transmission capacity of circuit, transmission performance, environmental impact (corona, radio interference, noise etc.) be considered, in principle, following factor should be considered:
(1) the permission temperature rise of wire;
(2) on the impact of environment, radio interference, corona noise etc. is comprised;
(3) transmission capacity and economic current density;
(4) corona critical voltage.
Traditional wire, its structure is that circular zinc-coated wire stressed member adds that the round aluminum steel of transferring electric power is stranded and forms, and be namely made up of " circular zinc-coated wire+hard circular aluminium wire ", it is applied to extra-high voltage grid following defect:
1 adopts the stranded technology of circular aluminum steel, and wire stranding gap is large, and stranded density is little, and under equivalent diameter, the effective cross-section of transferring electric power is little;
2 circular aluminum steel stranded conductors, wire diameter is large, and windage yaw is large, and wire needs larger Wind-Pressure Resistance ability, and wire integrated load badly influences tower bar intensity;
The wire of the stranded technology of the 3 circular aluminum steel of use, surface is linked into by circular cambered surface, and surface area is large, surface irregularity, vulnerable to pollution, anti-ice-snow ability;
The stranded technology of 4 circular aluminum steel, along with the expansion in cross section, product external diameter becomes very large, has broken through existing construction equipment specification, causes wire erection construction series of problems.Meanwhile, external diameter constantly increases, have to make solid conductor contraction in length or cause packaging tray too large, affect Product transport etc.
Because above defect can not meet the requirement of modern power network large-capacity power transmission, therefore need to develop a kind of novel wire, to meet the needs of China's power industry development.
Summary of the invention
For the problems referred to above, the utility model provides a kind of heavy in section aluminium alloy core, aluminium molded line twisted wire, which reduce the diameter of the twisted wire in equal transport cross section and superficies smooth, reduce windage, and make Product transport convenient.
A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire, it is characterized in that: it comprises unlined aluminium alloy core wire, outer field duralumin molded line, it is unlined aluminium alloy core wire in the inner chamber that described outer field duralumin molded line is combined to form, described outer duralumin molded line is specially two-layer, be specially the first duralumin molded line layer, second duralumin molded line layer, first duralumin molded line layer, second duralumin molded line layer is arranged from inside to outside in turn, the duralumin molded line layer of every layer is combined to form corresponding closed circular annuli arrangement by the duralumin molded line in several isosceles trapezoid cross sections, the wherein upper base in the isosceles trapezoid cross section corresponding to rigid aluminium profiles line of every layer, bottom is circular arc limit, be specially inner circle arc-shaped side, cylindrical arc-shaped side, the inner circle arc-shaped side of the duralumin molded line of every layer is close to the cylindrical arc-shaped side of the duralumin molded line of adjacent inner layer, described unlined aluminium alloy core wire comprises four-layer structure, it comprises center aluminium alloy heart yearn, unlined aluminium alloy core wire stranded layer, middle level aluminium alloy heart yearn stranded layer, outer aluminium alloy heart yearn stranded layer, described unlined aluminium alloy core wire stranded layer is formed by six roots of sensation aluminium alloy heart yearn is stranded, described middle level aluminium alloy heart yearn stranded layer is formed by 12 aluminium alloy heart yearns are stranded, described outer aluminium alloy heart yearn stranded layer is formed by 18 aluminium alloy heart yearns are stranded, the inwall of described first duralumin molded line layer wraps the outermost locations of described outer aluminium alloy heart yearn stranded layer.
It is further characterized in that:
Described first duralumin molded line layer is specifically combined to form by the 3rd rigid aluminium profiles line in 20 pieces of identical isosceles trapezoid cross sections, described second duralumin molded line layer is specifically combined to form by the 3rd rigid aluminium profiles line in 25 pieces of identical isosceles trapezoid cross sections, and the combination of this quantity makes the duralumin molded line in isosceles trapezoid cross section easy to make and guarantees that the diameter of the twisted wire in the equal transport cross section after combining is little;
The transition portion of the inner circle arc-shaped side of each described duralumin molded line, cylindrical arc-shaped side and adjacent waist is circular arc transition, guarantees the easy to make of duralumin molded line.
After adopting structure of the present utility model, because outer duralumin molded line is two-layer, and the duralumin molded line layer of every layer is combined to form corresponding closed circular annuli arrangement by the duralumin molded line in several isosceles trapezoid cross sections, the upper base in the isosceles trapezoid cross section corresponding to rigid aluminium profiles line of every layer, bottom is circular arc limit, be specially inner circle arc-shaped side, cylindrical arc-shaped side, the inner circle arc-shaped side of the duralumin molded line of every layer is close to the cylindrical arc-shaped side of the duralumin molded line of adjacent inner layer, it makes the outer ring surface of whole twisted wire be smooth disc, and due to rigid aluminium profiles line be isosceles trapezoid cross section, the upper base in isosceles trapezoid cross section, bottom is respectively inner circle arc-shaped side, cylindrical arc-shaped side, the conduction limited cross sections of the structure after whole combination is increased, reduce the diameter of the twisted wire in equal transport cross section, and superficies are smooth, reduce windage, and make Product transport convenient, and the use of unlined aluminium alloy core wire reduces the weight of whole twisted wire, guarantee that installation and transportation are convenient further.
Accompanying drawing explanation
Fig. 1 is structural representation sketch of the present utility model;
The cross section structure schematic diagram of the rigid aluminium profiles line that Fig. 2 adopts for the utility model;
Reference name in figure corresponding to each sequence number is as follows:
First duralumin molded line layer 1, second duralumin molded line layer 2, inner circle arc-shaped side 3, cylindrical arc-shaped side 4, center aluminium alloy heart yearn 5, unlined aluminium alloy core wire stranded layer 6, middle level aluminium alloy heart yearn stranded layer 7, outer aluminium alloy heart yearn stranded layer 8, circular arc transition 9.
Embodiment
A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire, see Fig. 1, Fig. 2: it comprises unlined aluminium alloy core wire, outer field duralumin molded line, it is unlined aluminium alloy core wire in the inner chamber that outer field duralumin molded line is combined to form, outer duralumin molded line is specially two-layer, be specially the first duralumin molded line layer 1, second duralumin molded line layer 2, first duralumin molded line layer 1, second duralumin molded line layer 2 is arranged from inside to outside in turn, the duralumin molded line layer of every layer is combined to form corresponding closed circular annuli arrangement by the duralumin molded line in several isosceles trapezoid cross sections, the wherein upper base in the isosceles trapezoid cross section corresponding to rigid aluminium profiles line of every layer, bottom is circular arc limit, be specially inner circle arc-shaped side 3, cylindrical arc-shaped side 4, the inner circle arc-shaped side 3 of the second duralumin molded line layer 2 is close to the cylindrical arc-shaped side 4 of the first duralumin molded line layer 1, unlined aluminium alloy core wire comprises four-layer structure, it comprises center aluminium alloy heart yearn 5, unlined aluminium alloy core wire stranded layer 6, middle level aluminium alloy heart yearn stranded layer 7, outer aluminium alloy heart yearn stranded layer 8, unlined aluminium alloy core wire stranded layer 6 is formed by six roots of sensation aluminium alloy heart yearn is stranded, middle level aluminium alloy heart yearn stranded layer 7 is formed by 12 aluminium alloy heart yearns are stranded, outer aluminium alloy heart yearn stranded layer 8 is formed by 18 aluminium alloy heart yearns are stranded, the inwall of the first duralumin molded line layer 1 wraps the outermost locations of outer aluminium alloy heart yearn stranded layer 8.
First duralumin molded line layer 1 is specifically combined to form by the 3rd rigid aluminium profiles line in 20 pieces of identical isosceles trapezoid cross sections, second duralumin molded line layer 2 is specifically combined to form by the 3rd rigid aluminium profiles line in 25 pieces of identical isosceles trapezoid cross sections, and the combination of this quantity makes the duralumin molded line in isosceles trapezoid cross section easy to make and guarantees that the diameter of the twisted wire in the equal transport cross section after combining is little;
The transition portion of the inner circle arc-shaped side 3 of each duralumin molded line, cylindrical arc-shaped side 4 and adjacent waist is circular arc transition 9, guarantees the easy to make of duralumin molded line.
Above specific embodiment of the utility model has been described in detail, but content being only the preferred embodiment that the utility model is created, the practical range created for limiting the utility model can not being considered to.All equalizations done according to the utility model creation application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (3)
1. a heavy in section aluminium alloy core, aluminium molded line twisted wire, it is characterized in that: it comprises unlined aluminium alloy core wire, outer field duralumin molded line, it is unlined aluminium alloy core wire in the inner chamber that described outer field duralumin molded line is combined to form, described outer duralumin molded line is specially two-layer, be specially the first duralumin molded line layer, second duralumin molded line layer, first duralumin molded line layer, second duralumin molded line layer is arranged from inside to outside in turn, the duralumin molded line layer of every layer is combined to form corresponding closed circular annuli arrangement by the duralumin molded line in several isosceles trapezoid cross sections, the wherein upper base in the isosceles trapezoid cross section corresponding to rigid aluminium profiles line of every layer, bottom is circular arc limit, be specially inner circle arc-shaped side, cylindrical arc-shaped side, the inner circle arc-shaped side of the duralumin molded line of every layer is close to the cylindrical arc-shaped side of the duralumin molded line of adjacent inner layer, described unlined aluminium alloy core wire comprises four-layer structure, it comprises center aluminium alloy heart yearn, unlined aluminium alloy core wire stranded layer, middle level aluminium alloy heart yearn stranded layer, outer aluminium alloy heart yearn stranded layer, described unlined aluminium alloy core wire stranded layer is formed by six roots of sensation aluminium alloy heart yearn is stranded, described middle level aluminium alloy heart yearn stranded layer is formed by 12 aluminium alloy heart yearns are stranded, described outer aluminium alloy heart yearn stranded layer is formed by 18 aluminium alloy heart yearns are stranded, the inwall of described first duralumin molded line layer wraps the outermost locations of described outer aluminium alloy heart yearn stranded layer.
2. a kind of heavy in section as claimed in claim 1 aluminium alloy core, aluminium molded line twisted wire, it is characterized in that: described first duralumin molded line layer is specifically combined to form by the 3rd rigid aluminium profiles line in 20 pieces of identical isosceles trapezoid cross sections, described second duralumin molded line layer is specifically combined to form by the 3rd rigid aluminium profiles line in 25 pieces of identical isosceles trapezoid cross sections.
3. a kind of heavy in section as claimed in claim 1 or 2 aluminium alloy core, aluminium molded line twisted wire, is characterized in that: the transition portion of the inner circle arc-shaped side of each described duralumin molded line, cylindrical arc-shaped side and adjacent waist is circular arc transition.
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| CN201520420194.0U CN204667986U (en) | 2015-06-17 | 2015-06-17 | A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire |
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| CN201520420194.0U CN204667986U (en) | 2015-06-17 | 2015-06-17 | A kind of heavy in section aluminium alloy core, aluminium molded line twisted wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845258A (en) * | 2016-06-08 | 2016-08-10 | 江苏亨通电力特种导线有限公司 | Energy-saving and capacity-increasing overhead wire |
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2015
- 2015-06-17 CN CN201520420194.0U patent/CN204667986U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845258A (en) * | 2016-06-08 | 2016-08-10 | 江苏亨通电力特种导线有限公司 | Energy-saving and capacity-increasing overhead wire |
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