CN206040285U - Two hank transmission pressures of damping endurance - Google Patents

Abstract

The utility model discloses a two hank transmission pressures of damping endurance, the compound conducting layer of its first compound conducting layer, second comprise the first composite conductors of a plurality of roots, the compound conductor stranding of second respectively, and the figure of this third composite conductor is greater than the figure of second composite conductor, and the figure of this second composite conductor is greater than the figure of first composite conductor, and the length of lay of second complex conducting layer is not more than the length of lay of first compound conducting layer, first composite conductor, second composite conductor and third composite conductor are by the circular aluminum conductor and cladding in the aluminium alloy layer of circular aluminum conductor surface that are located the center, the atress unit is further including the first steel wire and cladding in proper order in a surperficial tensile layer and the 2nd tensile layer of first steel wire that lie in the center, circular aluminum conductor is closed by a plurality of aluminium skein silks and forms. The utility model provides high wire from damping can, can automatic consume aeolian vibration's energy, reach the effect of damping, greatly reduced the fatigue breaking of wire, prolonged the life of wire.

Description

Vibration damping endurance multiple twin transmission pressure

Technical field

The utility model is related to a kind of electric power transmission lead, more particularly to a kind of vibration damping endurance multiple twin transmission pressure.

Background technology

Steel-cored aluminium strand is because being beneficial to simple structure, erection and easy to maintenance, circuit low cost, transmission capacity greatly, again Across the laying of the Special Geographic condition such as rivers and mountain valley, with good electric conductivity and the features such as enough mechanical strengths, So being widely used in electric power transmission line.But electric pressure is in the distribution network of below 110kV, steel-cored aluminium strand All be it is single lay, if wind-engaging blows, can freely swing with wind direction, if things go on like this, mechanical damage, Yi Fa can be produced to wire Raw the single wire fracture even risk of whole wire fracture, it is stranded to be commonly called as fatigue, causes fatal harm to transmission line of electricity.

The content of the invention

The utility model provides a kind of vibration damping endurance multiple twin transmission pressure, and this vibration damping endurance multiple twin transmission pressure is improved The self-damping performance of wire, can consume automatically the energy of aeolian vibration, reach the effect of vibration damping, significantly reduce wire Fatigue is stranded, moreover it is possible to avoids the electrochemical corrosion caused by bimetallic, greatly extends the service life of wire.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is：A kind of vibration damping endurance multiple twin transmission pressure, Including the first stranded conductor, the second stranded conductor, this first stranded conductor, the direction of the second stranded conductor stranding are left-hand, into Cable pitch is 2 ~ 3.5m, and first stranded conductor, the second stranded conductor are by the stress unit positioned at center and coat successively The first composite conductive layers in stress unit outer surface, the second composite conductive layers composition；

First composite conductive layers, the second composite conductive layers are respectively by some first compound wires, the second composite guide The stranded composition of line, the number of this 3rd compound wire are more than the number of the second compound wire, and the number of this second compound wire is big In the number of the first compound wire, and the twisting pitch of the second composite conductive layers is not more than the stranded section of the first composite conductive layers Away from first compound wire, the second compound wire and the 3rd compound wire are by the circular aluminum conductor positioned at center and cladding Constitute in the aluminium alloy layer of circular aluminum conductor outer surface；

The stress unit further include positioned at center the first steel wire and be coated on the of the first Steel Wire Surface successively One tensile layer and the second tensile layer, first tensile layer and the second tensile layer are respectively by some second steel wires and the 3rd steel wire Stranded composition, the twisting pitch of the second tensile layer are not more than the twisting pitch of the first tensile layer, first steel wire, the second steel wire Zinc layers are plated with the 3rd steel wire outer surface；The circular aluminum conductor is formed by some aluminium wires are stranded.

In above-mentioned technical proposal, further improved technical scheme is as follows：

1., in such scheme, the twisting pitch of first composite conductive layers is 14 ~ 16, second composite conductive layers Twisting pitch be 12 ~ 14.

2., in such scheme, the twisting pitch of first tensile layer is 18 ~ 26, the stranded section of second tensile layer Away from for 14 ~ 22.

3. in such scheme, a diameter of 2.2 ~ 4.5mm of the aluminium wire.

As above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：

The utility model vibration damping endurance multiple twin transmission pressure, which is two same cross-sectional areas using cabling equipment in case Steel-cored aluminium strand or aluminium alloy conductor be in " 8 " font is twisted together, improve the wind loading rating of wire, wind can be consumed automatically The energy of excited vibration, reaches the effect of vibration damping, can reduce the tired stranded of wire, increases the service life of wire（Aluminium is closed Golden material can also avoid bimetallic chemical attack）；The use stress of wire is also improved simultaneously, therefore can increase line span, Reduce shaft tower radix or reduce shaft tower height, save track investment, for the single steel-cored aluminium strand for laying, vibration damping is resistance to Tired multiple twin transmission pressure also has the advantages of operation temperature is lower, and AC resistance is less when circuit runs, and reduces circuit Loss；Secondly, when which reducing in the distribution network of below 110kV that steel-cored aluminium strand is single to be laid, by aeolian vibration institute The wire resonance that causes, the fatigue potential risk such as stranded, extend the service life of circuit, substantially increase the peace of transmission line of electricity Quan Xing.

Description of the drawings

Accompanying drawing 1 is the utility model vibration damping endurance multiple twin transmission pressure structural representation；

Partial structural diagram of the accompanying drawing 2 for accompanying drawing 1.

In the figures above：1st, the first stranded conductor；2nd, the second stranded conductor；3rd, stress unit；4th, the first composite conductive layers； 41st, the first compound wire；5th, the second composite conductive layers；51st, the second compound wire；7th, circular aluminum conductor；8th, aluminium alloy layer；9th, One steel wire；10th, the first tensile layer；101st, the second steel wire；11st, the second tensile layer；111st, the 3rd steel wire；12nd, zinc layers；13rd, aluminium wire.

Specific embodiment

Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：

Embodiment 1：A kind of vibration damping endurance multiple twin transmission pressure, including the first stranded conductor 1, the second stranded conductor 2, this First stranded conductor 1,2 stranding of the second stranded conductor direction be left-hand, laying up pitch be 2 ~ 3.5m, first stranded conductor 1st, the second stranded conductor 2 is by the stress unit 3 positioned at center and is coated on the first composite guide of 3 outer surface of stress unit successively Electric layer 4, the second composite conductive layers 5 are constituted；

First composite conductive layers 4, the second composite conductive layers 5 are multiple by some first compound wires 41, second respectively 51 stranded composition of wire is closed, the number of this 3rd compound wire 61 is more than the number of the second compound wire 51, this second composite guide Number of the number of line 51 more than the first compound wire 41, and the twisting pitch of the second composite conductive layers 5 no more than first is compound The twisting pitch of conductive layer 4, during first compound wire 41, the second compound wire 51 and the 3rd compound wire 61 are by being located at The circular aluminum conductor 7 of the heart and the aluminium alloy layer 8 for being coated on 7 outer surface of circular aluminum conductor are constituted；

The stress unit 3 further include positioned at center the first steel wire 9 and be coated on 9 surface of the first steel wire successively First tensile layer 10 and the second tensile layer 11, first tensile layer 10 and the second tensile layer 11 are respectively by some second steel wires 101 and 111 stranded composition of the 3rd steel wire, the twisting pitch of the second tensile layer 11 is not more than the twisting pitch of the first tensile layer 10, First steel wire 9, the second steel wire 101 and 111 outer surface of the 3rd steel wire are plated with zinc layers 12；The circular aluminum conductor 7 by Some aluminium wires 13 are stranded to be formed.

The twisting pitch of above-mentioned first composite conductive layers 4 is 16, and the twisting pitch of second composite conductive layers 5 is 14.

The twisting pitch of above-mentioned first tensile layer 10 is 26, and the twisting pitch of second tensile layer 11 is 22.

13 a diameter of 4.2mm of above-mentioned aluminium wire.

Embodiment 2：A kind of vibration damping endurance multiple twin transmission pressure, including the first stranded conductor 1, the second stranded conductor 2, this First stranded conductor 1,2 stranding of the second stranded conductor direction be left-hand, laying up pitch be 2 ~ 3.5m, first stranded conductor 1st, the second stranded conductor 2 is by the stress unit 3 positioned at center and is coated on the first composite guide of 3 outer surface of stress unit successively Electric layer 4, the second composite conductive layers 5 are constituted；

First composite conductive layers 4, the second composite conductive layers 5 are multiple by some first compound wires 41, second respectively 51 stranded composition of wire is closed, the number of this 3rd compound wire 61 is more than the number of the second compound wire 51, this second composite guide Number of the number of line 51 more than the first compound wire 41, and the twisting pitch of the second composite conductive layers 5 no more than first is compound The twisting pitch of conductive layer 4, during first compound wire 41, the second compound wire 51 and the 3rd compound wire 61 are by being located at The circular aluminum conductor 7 of the heart and the aluminium alloy layer 8 for being coated on 7 outer surface of circular aluminum conductor；

The stress unit 1 further include positioned at center the first steel wire 9 and be coated on 9 surface of the first steel wire successively First tensile layer 10 and the second tensile layer 11, first tensile layer 10 and the second tensile layer 11 are respectively by some second steel wires 101 and 111 stranded composition of the 3rd steel wire, the twisting pitch of the second tensile layer 11 is not more than the twisting pitch of the first tensile layer 10, First steel wire 9, the second steel wire 101 and 111 outer surface of the 3rd steel wire are plated with zinc layers 12；The circular aluminum conductor 7 by Some aluminium wires 13 are stranded to be formed.

The twisting pitch of above-mentioned first composite conductive layers 4 is 14, and the twisting pitch of second composite conductive layers 5 is 12.

The twisting pitch of above-mentioned first tensile layer 10 is 24, and the twisting pitch of second tensile layer 11 is 20.

13 a diameter of 2.8mm of above-mentioned aluminium wire.

During using above-mentioned vibration damping endurance multiple twin transmission pressure, which is two same cross-sectional areas using cabling equipment in case Steel-cored aluminium strand or aluminium alloy conductor be in " 8 " font is twisted together, improve the wind loading rating of wire, wind can be consumed automatically The energy of excited vibration, reaches the effect of vibration damping, can reduce the tired stranded of wire, increases the service life of wire（Aluminium is closed Golden material can also avoid bimetallic chemical attack）；The use stress of wire is also improved simultaneously, therefore can increase line span, Reduce shaft tower radix or reduce shaft tower height, save track investment, for the single steel-cored aluminium strand for laying, vibration damping is resistance to Tired multiple twin transmission pressure also has the advantages of operation temperature is lower, and AC resistance is less when circuit runs, and reduces circuit Loss；Secondly, when which reducing in the distribution network of below 110kV that steel-cored aluminium strand is single to be laid, by aeolian vibration institute The wire resonance that causes, the fatigue potential risk such as stranded, extend the service life of circuit, substantially increase the peace of transmission line of electricity Quan Xing.

Above-described embodiment only for illustrating technology design of the present utility model and feature, its object is to allow and be familiar with technique Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this. All equivalence changes made according to the utility model Spirit Essence or modification, should all cover protection domain of the present utility model it It is interior.

Claims (1)

1. a kind of vibration damping endurance multiple twin transmission pressure, it is characterised in that：Including the first stranded conductor（1）, the second stranded conductor （2）, this first stranded conductor（1）, the second stranded conductor（2）The direction of stranding is left-hand, and laying up pitch is 2 ~ 3.5m, described the One stranded conductor（1）, the second stranded conductor（2）By the stress unit positioned at center（3）Stress unit is coated on successively（3） First composite conductive layers of outer surface（4）, the second composite conductive layers（5）Composition；

First composite conductive layers（4）, the second composite conductive layers（5）Respectively by some first compound wires（41）, second Compound wire（51）Stranded composition, this 3rd compound wire（61）Number be more than the second compound wire（51）Number, this Two composite conductors（51）Number be more than the first compound wire（41）Number, and the second composite conductive layers（5）Twisting pitch No more than the first composite conductive layers（4）Twisting pitch, first compound wire（41）, the second compound wire（51）With the 3rd Compound wire（61）By the circular aluminum conductor positioned at center（7）Be coated on circular aluminum conductor（7）The aluminium alloy layer of outer surface （8）Constitute；

The stress unit（3）Further include the first steel wire positioned at center（9）The first steel wire is coated on successively（9）Surface The first tensile layer（10）With the second tensile layer（11）, first tensile layer（10）With the second tensile layer（11）Respectively by some The second steel wire of root（101）With the 3rd steel wire（111）Stranded composition, the second tensile layer（11）Twisting pitch be not more than the first tension Layer（10）Twisting pitch, first steel wire（9）, the second steel wire（101）With the 3rd steel wire（111）Outer surface is plated with zinc Layer（12）；The circular aluminum conductor（7）By some aluminium wires（13）It is stranded to form；First composite conductive layers（4）It is stranded Pitch is 14 ~ 16, second composite conductive layers（5）Twisting pitch be 12 ~ 14；First tensile layer（10）Stranded section Away from for 18 ~ 26, second tensile layer（11）Twisting pitch be 14 ~ 22；The aluminium wire（13）A diameter of 4.2mm mm or 2.8mm。