CN211265003U

CN211265003U - High-flexibility towline cable for movement

Info

Publication number: CN211265003U
Application number: CN202020131204.XU
Authority: CN
Inventors: 吕国武; 王磊凡
Original assignee: Jiangsu Huaya Cable Co ltd
Current assignee: Jiangsu Huaya Cable Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-08-14
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a high-flexibility towline cable for movement, which comprises a conductive wire core and a reinforcing wire core, wherein the cross-sectional areas of the conductive wire core and the reinforcing wire core are the same; a reinforcing wire core is placed in the center of the cable, three reinforcing wire cores and three conductive wire cores are alternately placed outside the reinforcing wire core in the center, and concentric twisting is simultaneously carried out to form a cable core, wherein the twisting pitch is not more than 16 times of the twisting outer diameter; and a polyester wrapping belt is wound outside the cable core, a metal shielding braid is braided outside the cable core, and a chlorosulfonated polyethylene sheath is extruded outside the metal shielding braid.

Description

High-flexibility towline cable for movement

Technical Field

The utility model relates to a wire and cable field specifically indicates a high compliance is towline cable for removal.

Background

The rapid development of modern industrial science and technology promotes the high-speed increase of national economy, but, the degree of automation of modern equipment is higher, needs the cable to provide the electric energy simultaneously, also needs the cable to possess special performance's requirements such as resistant bending, resistant friction. The more frequently used mechanical equipment in the industry, the shorter the performance life of the cable, and the continuous movement of a transmission connecting line along with the frequent operation of the equipment, so the service life of the cable in the repeated movement process is always an industrial problem, and particularly for the cable laid in a drag chain, the frequent bending, kneading, extruding and rubbing of the cable along with the repeated rotation of the drag chain easily cause the safety problems of wrinkling, breakage and even puncture of common cables.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high compliance is portable and is used tow chain cable is provided, the cable when transmitting the electric energy, has also possessed resistant crooked, resistant rubbing, resistant extrusion, antifriction's performance.

In order to achieve the above object, the utility model adopts the following technical scheme: a high-flexibility towline cable for movement comprises a conductive wire core and a reinforcing wire core, wherein the cross-sectional areas of the conductive wire core and the reinforcing wire core are the same; a reinforcing wire core is placed in the center of the cable, three reinforcing wire cores and three conductive wire cores are alternately placed outside the reinforcing wire core in the center, and concentric twisting is simultaneously carried out to form a cable core, wherein the twisting pitch is not more than 16 times of the twisting outer diameter; filling thermoplastic silicone rubber elastomer in the gap of the cable core; and a polyester wrapping belt is wound outside the cable core, a metal shielding braid is braided outside the cable core, and a chlorosulfonated polyethylene sheath is extruded outside the metal shielding braid.

In a further improvement, the conductive wire core is composed of a conductor and a first insulating layer extruded outside the conductor.

The conductor is further improved, the conductor is formed by combining a plurality of copper wires, and the combining pitch is not more than 20 times of the combining outer diameter.

In a further improvement, the first insulating layer is a crosslinked polyethylene insulating layer.

The further improvement, the reinforcement sinle silk constitute by cotton thread and cladding second insulating layer outside the cotton thread.

The improved basalt fiber composite insulating layer is characterized in that the second insulating layer comprises a first elastic base layer, a composite layer and a second elastic base layer, the first elastic base layer, the composite layer and the second elastic base layer are sequentially compounded, the first elastic base layer is made of fluororubber, the second elastic base layer is made of silicon rubber, and the composite layer is made of basalt fiber fabric and double-sided adhesive layers coated on the front side and the back side of the basalt fiber fabric.

The metal shielding braid is further improved, the metal shielding braid is formed by weaving thin copper wires and thin steel wires with the same size in half by a 24-spindle weaving machine, the weaving density is not lower than 80%, each spindle is provided with 3 thin copper wires and 3 thin steel wires, the diameter of each wire is 0.20mm, the thin steel wires are added, and the weaving effect cannot be achieved in order to prevent the copper wires of the cable from being broken in the bending process.

The beneficial effects of the utility model reside in that:

the cable adopts concentric transposition structure, structural style 1+6, the reinforcement sinle silk is preferentially placed at the center of cable, aim at cable when the bending movement lets its inside sinle silk only can radial movement, and avoid conductive core longitudinal movement in the cable, if there is the linear longitudinal movement of electrically conductive, then every conductor sinle silk atress is inhomogeneous, and break off or puncture, if the conductive sinle silk is not enough 1+6 structure, adopt the reinforcement sinle silk to mend neatly, the outer diameter of conductive sinle silk and reinforcement sinle silk, all keep unanimous with the main sinle silk outer diameter of conductive sinle silk. The cable is braided by combining copper wires and thin steel wires, and the significance is that the fracture of the braided copper wires is prevented in the moving process of the cable, so that the shielding effect cannot be achieved; chlorosulfonated polyethylene with mechanical strength not lower than 10N/mm is selected as the cable sheath material, so that the cable has excellent ozone resistance, atmospheric aging resistance, chemical corrosion resistance and the like, and has better physical and mechanical properties, aging resistance, heat resistance, low temperature resistance, oil resistance, flame resistance, wear resistance and electric insulation resistance.

Drawings

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

fig. 2 is a schematic structural diagram of the second insulating layer.

Detailed Description

As shown in fig. 1, a high-flexibility towline cable for mobile use comprises a conductive wire core and a reinforcing wire core, wherein the conductive wire core is composed of a conductor 1 and a first insulating layer 2 (a crosslinked polyethylene insulating layer) extruded outside the conductor, the conductor is formed by bundling a plurality of copper wires, the bundling pitch is not more than 20 times of the bundling outer diameter, and the reinforcing wire core is composed of a cotton wire 3 and a second insulating layer 4 coated outside the cotton wire; the cross-sectional areas of the conductive wire core and the reinforcing wire core are the same; a reinforcing wire core is placed in the center of the cable, three reinforcing wire cores and three conductive wire cores are alternately placed outside the reinforcing wire core in the center, and concentric twisting is simultaneously carried out to form a cable core, wherein the twisting pitch is not more than 16 times of the twisting outer diameter; thermoplastic silicone rubber elastomer 12 is filled in the gap of the cable core, so that the core of the cable is resistant to extrusion, and the whole cable core is resistant to bending; wrapping a polyester wrapping tape 5 outside the cable core, weaving a metal shielding braid layer 6 outside the cable core, wherein the metal shielding braid layer is formed by weaving thin copper wires and thin steel wires with the same size in a half-and-half mode through a 24-spindle weaving machine, the weaving density is not lower than 80%, each spindle comprises 3 thin copper wires and 3 thin steel wires, the diameter of each wire is 0.20mm, the thin steel wires are added, and in order to prevent the cable from breaking the woven copper wires in the bending process, the weaving effect cannot be achieved; the chlorosulfonated polyethylene sheath 7 is extruded outside the metal shielding braid, the mechanical strength is not lower than 10N/mm, so that the cable has excellent ozone resistance, atmospheric aging resistance, chemical corrosion resistance and the like, and good physical and mechanical properties, aging resistance, heat resistance, low temperature resistance, oil resistance, flame resistance, wear resistance, bending resistance, kneading resistance, extrusion resistance, friction resistance and electric insulation resistance;

as shown in fig. 2, the second insulating layer includes a first elastic base layer 8, a composite layer and a second elastic base layer 9, the first elastic base layer, the composite layer and the second elastic base layer are sequentially compounded, the first elastic base layer is made of fluororubber, the second elastic base layer is made of silicon rubber, the composite layer is made of basalt fiber fabric 10 and double-sided adhesive layers 11 coated on the front and back sides of the basalt fiber fabric, so that the cable has excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance, the basalt fiber can increase the electrical insulation and high temperature resistance of the cable insulating layer, the cable insulating layer can play a better protection role, and has certain elasticity, and the cable core can be prevented from being extruded to damage the cable core, so that the normal use of the cable is affected.

The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.

Claims

1. A high-flexibility towline cable for movement is characterized by comprising a conductive wire core and a reinforcing wire core, wherein the cross-sectional areas of the conductive wire core and the reinforcing wire core are the same; a reinforcing wire core is placed in the center of the cable, three reinforcing wire cores and three conductive wire cores are alternately placed outside the reinforcing wire core in the center, and concentric twisting is simultaneously carried out to form a cable core, wherein the twisting pitch is not more than 16 times of the twisting outer diameter; filling thermoplastic silicone rubber elastomer in the gap of the cable core; and a polyester wrapping belt is wound outside the cable core, a metal shielding braid is braided outside the cable core, and a chlorosulfonated polyethylene sheath is extruded outside the metal shielding braid.

2. The highly flexible mobile towline cable of claim 1, wherein the conductive core is comprised of a conductor and a first insulating layer extruded over the conductor.

3. The highly flexible mobile towline cable of claim 2, wherein said conductor is formed by bundling a plurality of copper wires at a bundling pitch of not more than 20 times the outside diameter of the bundle.

4. The highly flexible mobile towline cable of claim 2, wherein said first insulating layer is a crosslinked polyethylene insulating layer.

5. The highly flexible mobile towline cable of claim 1, wherein said reinforcing core is comprised of cotton and a second insulating layer covering the cotton.

6. The highly flexible mobile towline cable of claim 5, wherein the second insulating layer comprises a first elastic base layer, a composite layer and a second elastic base layer, the first elastic base layer, the composite layer and the second elastic base layer are sequentially compounded, the first elastic base layer is made of fluororubber, the second elastic base layer is made of silicone rubber, and the composite layer is made of basalt fiber fabric and two-sided adhesive layers coated on the front and back sides of the basalt fiber fabric.

7. The highly flexible mobile towline cable of claim 1, wherein said metallic shielding braid is braided by a 24-spindle braiding machine using thin copper wires and thin steel wires of the same size in half, wherein the braiding density is not less than 80%, each spindle has 3 thin copper wires and 3 thin steel wires, and each wire diameter is 0.20 mm.