CN214476570U - Easily-laid torsion-resistant and low-temperature-resistant cable - Google Patents

Abstract

The utility model relates to an easily lay resistant turn round, low temperature resistant cable, include: the cable comprises a plurality of cable units, each cable unit comprises an anti-torsion electric core, each anti-torsion electric core is formed by twisting a plurality of conductors, a metal foil strand is arranged in a gap between the conductors, the outer side of each anti-torsion electric core is sequentially coated with an insulating layer and a flame-retardant layer from inside to outside, a plurality of filling lines are arranged on the inner side of each insulating layer, and the filling lines are positioned in grooves formed among the conductors of the anti-torsion electric cores; the connecting and supporting structure comprises an outer sheath, the outer sheaths of the adjacent cable units are connected through connecting ribs, and reinforcing wires and/or grounding wires are arranged in the connecting ribs. The utility model makes the laying process simpler, and reduces the friction and collision between cables when the corresponding movable parts act; the utility model discloses used flexible material such as foil silk bundle, filling wire, nylon sinle silk, made the cable can also have stronger antitorque, tensile strength ability at low temperature, helped further prolonging the life of cable.

Description

Easily-laid torsion-resistant and low-temperature-resistant cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to an easily lay resistant turn round, low temperature resistant cable.

Background

With the continuous updating of the technology, more and more electric hydraulic engineering vehicles are replacing the traditional mechanical hydraulic engineering vehicles, and become the mainstream of the market. A large number of various cables need to be arranged among all movable parts of the electric hydraulic engineering vehicle, the structure is complicated, some engineering vehicles need to work in relatively severe environments such as low temperature for a long time, at the moment, different cables lose the protection and insulation effects on cable cores due to the fact that the different cables rub against each other and collide more to cause the situations of fatigue, damage and the like of a protection layer.

Disclosure of Invention

The utility model discloses aim at solving prior art not enough, and provide the resistant cable of turning round, low temperature resistant that easily lays.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

an easy-to-lay, torsion resistant, low temperature resistant cable comprising:

the cable comprises a plurality of cable units, each cable unit comprises an anti-torsion electric core, each anti-torsion electric core is formed by twisting a plurality of conductors, a metal foil strand is arranged in a gap between the conductors, the outer side of each anti-torsion electric core is sequentially coated with an insulating layer and a flame-retardant layer from inside to outside, a plurality of filling lines are arranged on the inner side of each insulating layer, and the filling lines are positioned in grooves formed among the conductors of the anti-torsion electric cores;

the connection support structure comprises an outer sheath, the outer sheath is coated on the outer side of the flame-retardant layer, the outer sheaths of the adjacent cable units are connected through connecting ribs, and reinforcing wires and/or grounding wires are arranged in the connecting ribs.

Furthermore, the number of the conductors of one cable unit is seven, the conductors are regularly twisted according to a mode of '1 + 6', and each conductor is formed by regularly twisting seven soft copper wires according to a mode of '1 + 6'.

Further, the number of the metal foil wire bundles is bundle and is respectively positioned in six gaps between the outer conductor and the inner conductor.

Further, the insulating layer is a radiation high-temperature-resistant polyethylene layer.

Further, the flame-retardant layer is formed by winding the flame-retardant rubber belt, a clamping groove is formed in one side of the top of the flame-retardant rubber belt, a protrusion is arranged on the other side of the bottom of the flame-retardant rubber belt and matched with the clamping groove, and the protrusion is clamped into the clamping groove during winding.

Furthermore, the filling line is an ethylene propylene rubber line and the section of the filling line is fan-shaped.

Furthermore, a nylon wire core is arranged in the filling wire.

Further, the outer sheath is a silicon rubber sheath and is integrally arranged with the connecting rib.

Furthermore, the reinforcing wire is a steel wire rope.

The utility model has the advantages that: the utility model can be arranged into a plurality of combination forms according to the actual needs when laying, which not only simplifies the laying process, but also is beneficial to reducing the friction and the collision among the cables when the corresponding movable parts act, and is beneficial to prolonging the service life of the cables; the utility model discloses used flexible material such as foil silk bundle, filling wire, nylon sinle silk, made the cable can also have stronger antitorque, tensile strength ability at low temperature, helped further prolonging the life of cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a flame retardant taping tape;

FIG. 3 is a diagram illustrating the usage of the present invention;

in the figure: 1-a cable unit; 11-a conductor; 12-wire foil tow; 13-an insulating layer; 14-a flame retardant layer; 141-card slot; 142-a bump; 15-a fill line; 16-nylon wire core; 2-connecting a support structure; 21-an outer sheath; 22-connecting ribs; 23-a reinforcing wire; 24-a ground line;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown, an easy-to-lay, torsion resistant, low temperature resistant cable includes:

the cable comprises a plurality of cable units 1, wherein each cable unit 1 comprises an anti-torsion cell, each anti-torsion cell is formed by twisting a plurality of conductors 11, a metal foil strand 12 is arranged in a gap between the conductors 11, an insulating layer 13 and a flame-retardant layer 14 are sequentially coated on the outer side of each anti-torsion cell from inside to outside, a plurality of filling lines 15 are arranged on the inner side of each insulating layer 13, and the filling lines 15 are positioned in grooves formed among the conductors 11 of the anti-torsion cells;

the connecting and supporting structure 2 comprises an outer sheath 21, the outer sheath 21 is coated on the outer side of the flame-retardant layer 14, the outer sheaths 21 of the adjacent cable units 1 are connected through a connecting rib 22, and a reinforcing wire 23 and/or a grounding wire 24 are arranged in the connecting rib 22.

Further, the number of the conductors 11 of one cable unit 1 is seven, and the conductors 11 are regularly twisted in a manner of "1 + 6", and each conductor 11 is formed by regularly twisting seven soft copper wires in a manner of "1 + 6".

Further, the metal foil filament bundles 12 are 6 in number and are respectively located in six spaces between the outer-layer conductor 11 and the inner-layer conductor 11.

Further, the insulating layer 13 is a radiation high temperature resistant polyethylene layer.

Further, the flame-retardant layer 14 is formed by wrapping a flame-retardant rubber wrapping tape, a clamping groove 141 is formed in one side of the top of the flame-retardant rubber wrapping tape, a protrusion 142 is arranged on the other side of the bottom of the flame-retardant rubber wrapping tape and matched with the clamping groove 141, and the protrusion 142 is clamped into the clamping groove 141 during wrapping.

Further, the filling line 15 is an ethylene propylene rubber line and has a fan-shaped cross section.

Further, a nylon wire core 16 is arranged in the filling wire 15.

Further, the outer sheath 21 is a silicone rubber sheath and is integrally disposed with the connecting rib 22.

Further, the reinforcing wire 23 is a wire rope.

As shown in fig. 3, the utility model can be set into various combination forms according to actual needs during laying, which not only makes the laying process simpler, but also is beneficial to reducing the friction and collision between cables when corresponding movable parts act, and is beneficial to prolonging the service life of the cables; the utility model discloses used flexible material such as metal forming silk bundle 12, filling wire 15, nylon sinle silk 16, made the cable can also have stronger antitorque, tensile strength ability at low temperature, helped further prolonging the life of cable.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims (9)

1. An easily laid torsion-resistant, low temperature-resistant cable, comprising:

the cable comprises a plurality of cable units (1), wherein each cable unit (1) comprises an anti-torsion cell, each anti-torsion cell is formed by twisting a plurality of conductors (11), a metal foil filament bundle (12) is arranged in a gap between the conductors (11), the outer side of each anti-torsion cell is sequentially coated with an insulating layer (13) and a flame retardant layer (14) from inside to outside, a plurality of filling lines (15) are arranged on the inner side of each insulating layer (13), and the filling lines (15) are positioned in grooves formed among the conductors (11) of the anti-torsion cells;

connect bearing structure (2), connect bearing structure (2) including oversheath (21), oversheath (21) cladding is in fire-retardant layer (14) outside, and oversheath (21) of adjacent cable unit (1) link to each other through splice bar (22), is equipped with enhancement line (23) and/or earth connection (24) in splice bar (22).

2. The easy-to-lay, twist-resistant, low-temperature-resistant cable as claimed in claim 1, characterized in that the conductors (11) of one cable unit (1) are seven in number and are regularly twisted in a "1 + 6" manner, each conductor (11) being regularly twisted in a "1 + 6" manner by seven soft copper wires.

3. Easy-to-lay, twist-resistant, cryogenic cable according to claim 2, characterized in that the number of metal foil tows (12) is 6 tows and located in six interstices between the outer conductor (11) and the inner conductor (11), respectively.

4. Easy-to-lay, torsion-resistant, low-temperature-resistant cable according to claim 1, characterized in that the insulating layer (13) is a layer of radiation-resistant high-temperature polyethylene.

5. The easy-to-lay torsion-resistant and low-temperature-resistant cable as claimed in claim 1, wherein the flame-retardant layer (14) is formed by wrapping a flame-retardant adhesive tape, a clamping groove (141) is formed in one side of the top of the flame-retardant adhesive tape, a protrusion (142) is arranged on the other side of the bottom of the flame-retardant adhesive tape and matched with the clamping groove (141), and the protrusion (142) is clamped into the clamping groove (141) during wrapping.

6. Easy-to-lay, torsion-resistant, cryogenic-resistant cable according to claim 1, characterized in that the filler wire (15) is an ethylene propylene rubber wire and is fan-shaped in cross-section.

7. Easy-to-lay, torsion-resistant, cryogenic-resistant cable according to claim 1, characterized in that the filler wire (15) is provided with a nylon wire core (16).

8. The easy-to-lay, torsion-resistant, cryogenic cable of claim 1, characterized in that the outer sheath (21) is a silicone rubber sheath and is provided integrally with the connecting ribs (22).

9. Easy-to-lay, torsion-resistant, cryogenic-resistant cable according to claim 1, characterized in that the reinforcing wire (23) is a steel wire rope.

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