CN211628750U

CN211628750U - Copper alloy contact wire for high-speed train

Info

Publication number: CN211628750U
Application number: CN202020652716.0U
Authority: CN
Inventors: 陈骏
Original assignee: Shangrao Zhongfan Metal Co ltd
Current assignee: Shangrao Zhongfan Metal Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-10-02
Anticipated expiration: 2030-04-26

Abstract

The utility model relates to a cable technical field for the high-speed train specifically is a copper alloy contact wire for high-speed train, the outside setting of online core of protective sheath parcel, the core includes six aluminum alloy sinle silks, six the outside of aluminum alloy sinle silk all wraps up there is the insulating layer, and six aluminum alloy sinle silks restraint earlier and twist the setting again syntropy again, the protective sheath is by interior toward including fire-retardant layer, aluminium foil around covering, shielding layer, acrylic fibres weaving layer and outer inoxidizing coating outward in proper order, be equipped with the strengthening rib in the shielding layer. The utility model discloses in, through the strengthening rib that sets up eight pure copper materials in the shielding layer to and the aluminum alloy sinle silk of twisting again syntropy after restrainting the hank earlier, make the tensile compressive property of this wire rod stronger, avoid external force to cause the damage of wire rod, through the setting of each layer structure in the outside, satisfied the fire-retardant, high temperature resistant, insulating, corrosion-resistant and durable performance of wire rod, life is longer.

Description

Copper alloy contact wire for high-speed train

Technical Field

The utility model relates to a cable technical field for the high-speed train specifically is a copper alloy contact wire for high-speed train.

Background

The high-speed electrified railway in China reaches 1.2 kilometers in 2020, wherein the operation speed of the Jingu high-speed railway reaches 380km/h, and a contact line is used as an important medium in the pantograph-catenary relationship of the electrified railway and has the function of ensuring that electric energy can be continuously obtained from a traction power supply system when the train runs at high speed, so that a good pantograph-catenary relationship is required, one of important means for improving the pantograph-catenary relationship is to improve the tension of the contact line, so that the vibration of the contact line is quickly attenuated, the influence of the vibration on the received current is reduced, and the high-speed contact line is required to bear larger working tension.

The contact wire is the worst one of all power supply wires in working environment, and needs to bear impact, vibration, temperature difference change, environmental corrosion, abrasion, electric spark ablation and great working tension when in normal work, so the performance of the contact wire directly influences the safe operation of a high-speed train. Accordingly, those skilled in the art have provided a copper alloy contact wire for high-speed trains to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a copper alloy contact wire for high-speed train to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a copper alloy contact wire for high-speed train, includes core body and protective sheath, the protective sheath parcel sets up in the outside of core body, the core body includes six aluminum alloy sinle silks, six the outside of aluminum alloy sinle silk has all been wrapped up the insulating layer, and six aluminum alloy sinle silks restraint earlier and twist the setting again in the syntropy, the protective sheath is by interior toward including fire-retardant layer, aluminium foil in proper order outward around covering, shielding layer, acrylic fibres weaving layer and outer inoxidizing coating, be equipped with the strengthening rib in the shielding layer.

As a further aspect of the present invention: the insulating layer adopts polyvinyl chloride material component.

As a further aspect of the present invention: the flame-retardant layer is a mica tape and is uniformly wound on the outer side of the wire core body.

As a further aspect of the present invention: the aluminum foil lapping layer is an aluminum-plastic composite tape.

As a further aspect of the present invention: the shielding layer is a braided tin-plated copper wire layer.

As a further aspect of the present invention: the strengthening rib adopts pure copper material component, and the quantity of strengthening rib is eight, eight the strengthening rib is equidistant to encircle the setting.

As a further aspect of the present invention: the outer protective layer is made of a halogen-free low-smoke irradiation cross-linked polyolefin material component, and the outer protective layer and the acrylic woven layer are bonded into a whole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the strengthening rib that sets up eight pure copper materials in the shielding layer to and the aluminium alloy sinle silk of restrainting the hank back syntropy and twisting again earlier, make the tensile compressive property of this wire rod stronger, avoid external force to cause the damage of wire rod.

2. Through the setting of each layer structure of the flame retardant layer in the outside, the aluminum foil wrapping layer, the acrylic fiber weaving layer and the outer protective layer, the flame retardant, high temperature resistant, insulating, corrosion resistant and durable performances of the wire rod are met, and the service life is longer.

Drawings

FIG. 1 is a schematic perspective view of a copper alloy contact wire for high-speed trains;

FIG. 2 is a schematic cross-sectional view of a copper alloy contact wire for high-speed trains;

fig. 3 is a schematic cross-sectional view of a wire core in a copper alloy contact wire for a high-speed train.

In the figure: 1. a wire core body; 101. an aluminum alloy wire core; 102. an insulating layer; 2. a protective sleeve; 201. a flame retardant layer; 202. an aluminum foil wrapping layer; 203. a shielding layer; 204. acrylic knitting layer; 205. an outer protective layer; 206. and (5) reinforcing ribs.

Detailed Description

Referring to fig. 1-3, in the embodiment of the present invention, a copper alloy contact wire for high-speed train comprises a wire core 1 and a protective sheath 2, the protective sheath 2 is disposed outside the wire core 1, the wire core 1 comprises six aluminum alloy wire cores 101, the conductive effect is stable, the outer sides of the six aluminum alloy wire cores 101 are all wrapped with an insulating layer 102, and the six aluminum alloy wire cores 101 are twisted first and then twisted in the same direction, so that the tensile and compressive properties of the wire are stronger, the damage of the wire caused by external force is avoided, the protective sheath 2 comprises a flame retardant layer 201, an aluminum foil wrapping layer 202, a shielding layer 203, an acrylic woven layer 204 and an outer protective layer 205 from inside to outside in sequence, the flame retardant, high temperature resistance, insulation, corrosion resistance and durability of the wire are satisfied, the service life is longer, a reinforcing rib 206 is disposed in the shielding layer 203, so that the tensile, the damage of the wire rod caused by external force is avoided;

in fig. 3: the insulating layer 102 is made of a polyvinyl chloride material component, so that the insulating effect is good;

in fig. 2: the flame-retardant layer 201 is a mica tape, and the flame-retardant layer 201 is uniformly wound on the outer side of the wire core body 1, so that the flame-retardant effect is achieved, and the high temperature resistance of the wire is improved;

in fig. 2: the aluminum foil lapping layer 202 is an aluminum-plastic composite tape, which plays a role of anti-interference shielding and prevents current leakage;

in fig. 2: the shielding layer 203 is a braided tin-plated copper wire layer, and also plays a role in preventing current leakage;

in fig. 2: the reinforcing ribs 206 are made of pure copper components, the number of the reinforcing ribs 206 is eight, the eight reinforcing ribs 206 are arranged in a surrounding mode at equal intervals, stress is more uniform, and tensile and compressive capacity is stronger;

in fig. 2: the outer protective layer 205 is made of a halogen-free low-smoke irradiation cross-linked polyolefin material component, and the outer protective layer 205 and the acrylic woven layer 204 are bonded into a whole, so that the outer protective layer has strong corrosion resistance and wear resistance.

The utility model discloses a theory of operation is: through set up the strengthening rib 206 of eight pure copper materials in shielding layer 203, and six aluminum alloy sinle silk 101 restraint earlier and twist again syntropy again, make the tensile compressive property of this wire rod stronger, avoid external force to cause the damage of wire rod, the fire-retardant layer 201 in the outside, the aluminium foil is around the setting of covering 202, each layer structure of acrylic fibre weaving layer and outer inoxidizing coating, it is fire-retardant to have satisfied the wire rod, high temperature resistant, insulating, corrosion-resistant and durable performance, life is longer.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a copper alloy contact wire for high-speed train, includes wire core body (1) and protective sheath (2), its characterized in that, protective sheath (2) parcel sets up in the outside of wire core body (1), wire core body (1) includes six aluminum alloy sinle silk (101), six the outside of aluminum alloy sinle silk (101) all wraps up insulating layer (102), and six aluminum alloy sinle silk (101) restraint earlier and twist again syntropy and twist the setting, protective sheath (2) are by interior toward including fire-retardant layer (201), aluminium foil in proper order outward around covering (202), shielding layer (203), acrylic fibres weaving layer (204) and outer inoxidizing coating (205), be equipped with strengthening rib (206) in shielding layer (203).

2. The copper alloy contact wire for high-speed trains as claimed in claim 1, wherein said insulating layer (102) is made of polyvinyl chloride.

3. The copper alloy contact wire for high-speed trains as claimed in claim 1, wherein the flame retardant layer (201) is mica tape, and the flame retardant layer (201) is uniformly wound on the outside of the wire core body (1).

4. The copper alloy contact wire for high-speed trains as claimed in claim 1, wherein the aluminum foil wrapping layer (202) is an aluminum-plastic composite tape.

5. The copper alloy contact wire for high-speed trains according to claim 1, wherein the shielding layer (203) is a braided tin-plated copper wire layer.

6. The copper alloy contact wire for the high-speed train as claimed in claim 1, wherein the reinforcing ribs (206) are made of pure copper, the number of the reinforcing ribs (206) is eight, and the eight reinforcing ribs (206) are arranged in a surrounding manner at equal intervals.

7. The copper alloy contact wire rod for the high-speed train according to claim 1, wherein the outer protective layer (205) is made of a halogen-free low-smoke radiation cross-linked polyolefin material, and the outer protective layer (205) and the acrylic woven layer (204) are bonded into a whole.