CN209895822U - Shockproof anticorrosion low-sag wire - Google Patents

Abstract

The utility model relates to a shockproof anticorrosive low sag wire, including steel core and aluminium wire layer, still be provided with grease layer and aluminum pipe between steel core and the aluminium wire layer, the steel core is formed by many galvanized steel wires transposition, and the steel core outside is fixed to be set up the aluminum pipe, leave the clearance between the aluminum pipe inboard and the steel core outside, the clearance intussuseption is filled with the grease layer, the grease layer is the special anticorrosive oil of wire, and the fixed aluminium wire layer that sets up in aluminum pipe periphery, the aluminium wire layer is closely distributed along the circumferencial direction around the aluminum pipe periphery, and the aluminium wire layer is the multilayer, every layer the aluminium wire layer is formed by many aluminium wires transposition and tangent each other between the aluminium wire. The utility model discloses have better shockproof, corrosion resisting property when practical application, still effectively reduced the holistic arc of wire simultaneously and hung down, the practicality preferred.

Description

Shockproof anticorrosion low-sag wire

Technical Field

The utility model relates to an overhead transmission line technical field, concretely relates to anticorrosive low sag wire takes precautions against earthquakes.

Background

The power distribution transmission is an indispensable link in the power system, the power distribution transmission of the current power system mainly depends on an overhead power transmission conductor to serve as a main carrier of the power transmission, the power transmission conductor generally needs to be arranged between two adjacent iron towers, the iron towers hardly guarantee that the conductor connected between the iron towers is in a straight state, and the power transmission conductor has certain sag, so the low-sag conductor is generated in due charge, the low-sag conductor generally needs to be arranged in the high altitude, the low-sag conductor is replaced in the later period and needs to consume large cost during maintenance, and therefore the conductor with good shock resistance and corrosion resistance can prolong the service life of the conductor, and the later maintenance cost is reduced.

At present, an external support body of a steel core of a common low-sag wire consists of a molded line body, and the performances of shock resistance and corrosion resistance of the common low-sag wire are relatively common in application.

Disclosure of Invention

The utility model aims at providing a shockproof anticorrosive low sag wire of taking precautions against earthquakes, corrosion resistance preferred for solving the comparatively general problem of its shockproof, anticorrosive performance when using of general low sag wire.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a low sag wire of taking precautions against earthquakes and preventing corrosion, includes steel core and aluminium wire layer, still be provided with grease layer and aluminum pipe between steel core and the aluminium wire layer, the steel core is formed by many galvanized steel wires transposition, and the steel core registrates and sets up in the aluminum pipe, leave the clearance between the aluminum pipe inboard and the steel core outside and form the grease layer, the interior packing of grease layer has the oleamen, and the fixed aluminium wire layer that sets up in aluminum pipe periphery.

Further, the grease layer is special anti-corrosion oil for the lead.

Furthermore, the aluminum wire layers are multiple layers, each layer of aluminum wire layer is formed by twisting a plurality of aluminum wires, the aluminum wires are mutually tangent, and the twisting directions of adjacent aluminum wire layers are opposite.

Further, the stranding direction of the aluminum wire layer of the innermost layer is opposite to that of the steel core.

Through the technical scheme, the beneficial effects of the utility model are that:

the aluminum pipe is arranged outside the steel core, a gap is reserved between the aluminum pipe and the steel core, the aluminum pipe replaces a molded line body structure of a common low-sag wire, so that the wire structure is more stable, and meanwhile, the gap between the aluminum pipe and the steel core effectively blocks force transmission, so that the influence of external vibration on the steel core is reduced; the coefficient of linear expansion of the aluminum pipe is different from that of the steel core, and the aluminum pipe and the steel core are not easy to resonate when the lead is influenced by external vibration at high altitude, so that the damage to the lead caused by resonance is greatly reduced, the shock resistance of the lead is improved, meanwhile, the coefficient of linear expansion of the aluminum pipe and the aluminum wire layer is twice that of the steel core, when the temperature of the lead rises to reach a certain critical value, the sag of the lead depends on the steel core, the sag of the steel core is smaller, and the sag of the whole lead is reduced; the ointment layer filled in the gap between the aluminum pipe and the steel core is special anti-corrosion oil for the wire, the arrangement of the ointment layer not only improves the corrosion resistance inside the wire, but also plays a role in lubricating the sliding of the steel core in the aluminum pipe, the aluminum pipe arranged outside the ointment layer improves the sealing performance of the ointment layer, and reduces the loss of the ointment layer; the aluminum wire layer is of a multilayer structure, and meanwhile, the aluminum wire layer is closely distributed on the outer wall of the aluminum pipe, so that the overall structure of the lead is more round.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numbers in the drawings are as follows: 1 is the steel core, 2 is the ointment layer, 3 is the aluminum pipe, and 4 is the aluminum wire layer.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in figure 1, the shockproof anticorrosion low-sag conductor comprises a steel core 1 and an aluminum wire layer 4, wherein an ointment layer 2 and an aluminum pipe 3 are further arranged between the steel core 1 and the aluminum wire 4, the steel core 1 is formed by twisting a plurality of galvanized steel wires, the steel core 1 is sleeved in the aluminum pipe 3, a gap is reserved between the inner side of the aluminum pipe 3 and the outer side of the steel core 1 to form the ointment layer 2, ointment is filled in the ointment layer 2 and is anti-corrosion oil special for the conductor, the aluminum pipe 3 is fixedly provided with the aluminum wire layer 4 at the periphery, the aluminum wire layer 4 is tightly distributed around the periphery of the aluminum pipe along the circumferential direction, the aluminum wire layers 4 are multiple layers, each aluminum wire layer 4 is formed by twisting a plurality of aluminum wires, the aluminum wires are mutually tangent, the twisting direction between adjacent aluminum wire layers 4 is opposite, the innermost aluminum wire layer 4 is fixedly arranged on the outer wall of the aluminum pipe 3, and the twisting direction of the innermost aluminum wire layer is opposite, the aluminum wire layers 4 on the other layers are sequentially fixed on the outer wall of the aluminum wire layer 4 on the inner side of the aluminum wire layer, and the aluminum wire layer 4 adopted in the embodiment is of a two-layer structure.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims (4)

1. The utility model provides a low sag wire of taking precautions against earthquakes anticorrosive, includes steel core (1) and aluminum wire layer (4), its characterized in that, still including setting up oleamen layer (2) and aluminum pipe (3) between steel core (1) and aluminum wire layer (4), steel core (1) is formed by many galvanized steel wires transposition, and steel core (1) registrates the setting in aluminum pipe (3), leave clearance formation oleamen layer (2) between aluminum pipe (3) inboard and steel core (1) outside, oleamen layer (2) intussuseption is filled with the oleamen, and aluminum pipe (3) periphery is fixed and is set up aluminum wire layer (4).

2. The shockproof anticorrosion low-sag wire according to claim 1, wherein the ointment is anticorrosion oil special for wires.

3. The shockproof anticorrosion low-sag conductor according to claim 1, wherein the aluminum wire layers (4) are multiple layers, each aluminum wire layer (4) is formed by twisting a plurality of aluminum wires, the aluminum wires are mutually tangent, and the twisting directions of the adjacent aluminum wire layers (4) are opposite.

4. A shock-proof corrosion-resistant low-sag conductor according to claim 3, wherein the aluminum wire layer (4) at the innermost layer is stranded in the opposite direction to the steel core (1).

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