CN210467353U

CN210467353U - Steel wire reinforced tensile flexible cable

Info

Publication number: CN210467353U
Application number: CN201921315896.7U
Authority: CN
Inventors: 吕志宽; 陈梦华; 黄亚丽
Original assignee: Shanghai Jiukai Wire And Cable Co ltd
Current assignee: Jiukai Special Cable Shanghai Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-05
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a steel wire reinforced tensile flexible cable, which comprises four conductive wire cores and a reinforcing core arranged at the center of the four conductive wire cores, wherein a cable conductor and the reinforcing core are twisted into a cable core; an outer sheath is extruded on the outermost layer of the cable core; high-strength fibers are arranged between the cable core and the outer sheath to weave into a net-shaped reinforcing rib. The conductive wire core comprises a conductive wire core conductor, and an insulating layer is extruded or wrapped outside the conductive wire core conductor; the center of the conductive core conductor is provided with a steel wire bundle, and the steel wire bundle and the conductive core conductor are twisted together to form the conductive core conductor. The reinforced core is composed of a steel wire rope and an insulating layer extruded outside the steel wire rope. The reinforcing core is added in the conductor of the conductive wire core, so that the conductor is directly reinforced, and the conductor can be repeatedly bent and straightened and is not easy to break. Through carrying out optimal design to the conductor transposition structure, improve its compliance greatly, improve the conductor to the special operation requirement's of crooked tensile adaptability.

Description

Steel wire reinforced tensile flexible cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a steel wire strenghthened type tensile flexible cable.

Background

With the development of the world economy and science, the demand of the electric wire and the electric cable is increased, and the performance requirements of the electric wire and the electric cable are improved. In the power equipment or the circuit of mechanical equipment which moves frequently, a cable moves back and forth frequently along with the equipment continuously, and the cable is damaged by mechanical external force due to the fact that the cable is blown by wind and exposed to the sun in the severe external environment. During the movement, the cable bending radius is only a few times its own outer diameter. After thousands of reciprocating motions, the common flexible cable copper stranded conductor often generates yield fatigue, core breaking and sheath cracking phenomena are generated, the service life is only two to three months, and cracking is easily generated when the cable is frequently twisted and moved. In the working process, higher requirements are put forward on the flexibility and the safety of the cable which moves frequently. The whole working system stops to generate a chaotic phenomenon due to the damage of the cable.

In order to solve the above problems, people always seek an ideal technical solution to improve the service life of the cable on trial.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide a steel wire strenghthened type tensile flexible cable that design science, practicality are strong, rational in infrastructure, fail safe nature are strong and the nature of buckling is good.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

the steel wire reinforced tensile flexible cable comprises four conductive wire cores and a reinforcing core arranged at the center of the four conductive wire cores, wherein a cable conductor and the reinforcing core are twisted together to form a cable core; an outer sheath is extruded on the outermost layer of the cable core; high-strength fibers are arranged between the cable core and the outer sheath to weave into a net-shaped reinforcing rib.

Three of the four conductive wire cores are conductive wires, and one conductive wire core is a grounding wire.

The conductive wire core comprises a conductive wire core conductor, and an insulating layer is extruded or wrapped outside the conductive wire core conductor; the center of the conductive core conductor is provided with a steel wire bundle, and the steel wire bundle and the conductive core conductor are twisted together to form the conductive core conductor.

The reinforced core is composed of a steel wire rope and an insulating layer extruded outside the steel wire rope.

The steel wire bundle in the conductive wire core is 1/5 of the diameter of the conductive wire core.

The diameter of the steel wire bundle in the conducting core is half of that of the steel wire rope in the reinforcing core.

Has the advantages that: in the conductive wire core conductor and the grounding wire core conductor of the utility model, the stranded copper wires are twisted in the same direction respectively, and the steel wire bundle reinforcing core is added in the conductor, so that the conductor is directly reinforced and can endure repeated stretching without breaking, and the conductor is twisted in the same direction, thereby greatly improving the flexibility of the conductor and improving the flexibility of the conductor; the steel wire rope reinforcing core is arranged in the middle of the cable core, so that the tensile resistance of the cable can be greatly improved; a layer of high-strength fibers is arranged between the cable core and the sheath to weave a mesh reinforcing rib, which is beneficial to enhancing the strength of the cable and resisting dragging abrasion; an outer sheath is extruded on the outermost layer of the cable and is made of a wear-resistant, low-temperature-resistant and UV-resistant material; the bending machine has the advantages of scientific design, strong practicability, reasonable structure, strong safety and reliability and good bending property.

Drawings

Fig. 1 is the utility model discloses a steel wire strenghthened type tensile flexible cable cross-sectional structure schematic diagram.

Detailed Description

As shown in fig. 1, the steel wire reinforced tensile flexible cable comprises four conductive wire cores and a reinforcing core arranged at the center of the four conductive wire cores, wherein a cable conductor and the reinforcing core are twisted together to form a cable core; an outer sheath is extruded on the outermost layer of the cable core; three of the four conductive wire cores are conductive wires, and one conductive wire core is a grounding wire. High-strength fibers are arranged between the cable core and the outer sheath to weave into a net-shaped reinforcing rib, so that the strength of the cable is enhanced, and dragging abrasion is resisted.

The conductive wire core comprises a conductive wire core conductor 2, and a conductive wire core insulating layer 3 is extruded or wrapped outside the conductive wire core conductor 2; the center of the conductive core conductor 2 is also provided with a reinforcing steel wire bundle 1, the twisting direction of the reinforcing steel wire bundle is consistent with that of the conductive core conductor 2, the reinforcing steel wire bundle directly plays a role in reinforcing the conductor 2, can endure repeated bending and straightening without fracture, and the tensile resistance of the cable is greatly improved.

The conductor 2 of the conductive wire core is formed by twisting soft copper wires repeatedly, meets the requirement of 5 types of conductors specified in GB/T3956, and is twisted in the same direction during twisting repeatedly, so that the flexibility of the conductor is greatly improved.

The reinforced core is composed of a steel wire rope 4 and an insulating layer 5 extruded outside the steel wire rope. The reinforced core directly reinforces the integral tensile strength of the cable.

The reinforced core steel wire rope 4 is formed by twisting galvanized steel wires with the diameter of 0.15-0.20mm repeatedly, has good flexibility and high tensile strength, and plays a role of first bearing in the cable stretching process, thereby prolonging the service life of the cable in use.

Wherein, restrictive coating 7 is extruded by wear-resisting, low temperature resistant and anti UV's high soft PVC material and forms, and thickness is 1.5mm at least, plays the guard action to the cable core.

Wherein, be high strength fiber between restrictive coating 7 and the cable core and weave into netted enhancement layer 6, enhancement layer 6 and sheath 7 closely link to each other, and enhancement layer 6 plays the intensity that strengthens sheath 7 to the cable.

The filler 8 plays a role in fixing the conductive wire core and rounding the cable.

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. The steel wire reinforced tensile flexible cable is characterized by comprising four conductive wire cores and a reinforcing core arranged at the center of the four conductive wire cores, wherein a cable conductor and the reinforcing core are twisted together to form a cable core; an outer sheath is extruded on the outermost layer of the cable core; high-strength fibers are arranged between the cable core and the outer sheath to weave into a net-shaped reinforcing rib.

2. The steel wire reinforced tensile flexible cable of claim 1, wherein three of the four conductive wire cores are conductive wires and one is a ground wire.

3. The steel wire reinforced tensile flexible cable according to claim 1, wherein the conductive core comprises a conductive core conductor, and an insulating layer is extruded or wrapped outside the conductive core conductor; the center of the conductive core conductor is provided with a steel wire bundle, and the steel wire bundle and the conductive core conductor are twisted together to form the conductive core conductor.

4. The wire-reinforced tensile flexible cable according to claim 1, wherein the reinforcing core is formed of a steel wire rope and an insulating layer extruded on the steel wire rope.

5. The wire-reinforced tensile flexible cable according to claim 1, wherein the steel wire bundle in the conductive core is 1/5 of the diameter of the conductive core itself.

6. The wire-reinforced tensile flexible cable of claim 1, wherein the diameter of the steel wire bundle in the conductive core is half of the diameter of the steel wire rope in the reinforcing core.