CN202003704U - High flexible torsion-resistant tension-resistant cable - Google Patents

Abstract

The utility model relates to a high flexible torsion-resistant tension-resistant cable. A cable central layer adopts twisted high strength fiber cores or high strength fibers and insulated wire cores which are laid at intervals to form the cable. The cable has good flexibility, high strength and light weight, is capable of effectively avoiding damage to the cable caused by self weight and steel wires, saving fillings, simultaneously improves heat dissipation performance of the cable, improves current-carrying capability of the cable, reduces weight of the cable and is convenient for users to transport and lay.

Description

Highly flexible torsion and tensile cables

technical field

The utility model relates to a multi-core wire and cable, in particular to a highly flexible torsion-resistant and tensile-resistant cable.

Background technique

At present, with the continuous development of my country's ships, ports, mines, and rolling stock, out of safety considerations, the requirements for these industry facilities are getting higher and higher, and cables play a very important role in them. Sufficient flexibility, but also have a strong tensile strength. At present, the following two methods are mainly used: one is to use steel wire braiding to strengthen, this method is easy to cause the steel wire to break during the frequent movement of the cable, in case the broken wire may damage the insulation, resulting in a short circuit, and the steel wire is rigid Material, the cable is used in frequent moving occasions, friction occurs between the steel wire and the insulation, and the insulation is easily scratched; the other is the general use of steel strands to extrude a layer of insulation (or not) and form a cable together with the insulated core , the cable has good tensile performance, but poor flexibility, cannot be moved frequently for a long time, and is easy to cause damage between the cores.

In addition, in the conventional cable arrangement, according to the cable twisting law, generally one core or several cores are placed in the center, and in the twisting process, the middle layer is generally not twisted (one case), or the inner layer is twisted. The pitch diameter ratio is greater than the pitch of the outer layer, resulting in poor bending of the middle layer, and the middle layer is easy to break during the moving and bending process.

Utility model content

The purpose of the utility model is to overcome the above-mentioned deficiencies of the cables and provide a flexible torsion-resistant and tensile-resistant cable with good flexibility, high strength and a certain tensile force.

The technical scheme that realizes the utility model purpose is:

A highly flexible torsion-resistant and tensile cable, including a conductor, an insulated wire core and an extruded sheath layer, and also has one or several high-strength fiber cores, and the high-strength fiber core is placed in the center of the cable or spaced from the insulated wire core The cable arrangement is placed on the periphery of the cable; the high-strength fiber core is twisted by one or more bundles, and each bundle is twisted by glass fiber, basalt fiber or carbon fiber; the high flexibility torsion and tensile strength The cable also has a soft fill layer placed in the center of the cable.

The utility model ensures that the cable can withstand a certain tensile force during operation through the setting of high-strength fiber cores; the size of the central layer is restricted by the design strength and the number of outer cores, and the cores are regularly bundled or twisted. Re-twisted together to ensure a certain strength and flexibility; at the same time, because the high-strength fiber core is a flexible material, it will not cause damage to the insulating core during use, thus ensuring the insulation performance of the cable. Its advantages are: good flexibility, high strength, and small weight of the cable, which can effectively prevent the cable from being damaged by the weight of the cable and the steel wire, and can save filling. At the same time, it improves the heat dissipation performance of the cable and the current carrying capacity of the cable. The weight of the cable is reduced, which brings convenience to the user for transportation and laying.

Description of drawings

Fig. 1 is a structural schematic diagram of the first embodiment of the present utility model.

Fig. 2 is a structural schematic diagram of the second embodiment of the present utility model.

Fig. 3 is a structural schematic diagram of the third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the fourth embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention.

Detailed ways

(Example 1)

Referring to Fig. 1 and Fig. 2, a highly flexible torsion-resistant and tensile cable of this embodiment, from the inside to the outside, is as follows: a single-bundle high-strength fiber core 1, a conductor 2, an insulated core 3, an extruded sheath layer 4, and a single-bundle high-strength fiber core. The bundle high-strength fiber core is stranded by glass fiber or basalt fiber or carbon fiber with the same twist rate. Design the outer diameter and fiber material of the inner fiber core according to the number of outer cores, the outer diameter of the core and the tensile force it needs to bear. The number of 3 insulated cores is not limited.

(Example 2)

Referring to FIG. 3 , a highly flexible torsion-resistant and tensile cable of this embodiment is basically the same as that of Embodiment 1, except that the high-strength fiber core 1 that bears the tension in the center is formed by twisting multiple bundles.

(Example 3)

Referring to Fig. 4, a highly flexible torsion-resistant and tensile cable of this embodiment is basically the same as that of Embodiment 1, except that it has a high-strength fiber core 1 placed in the center of the cable and a high-strength fiber core 1 arranged in a cable at intervals with the insulated core 3. Fiber core 1.

(Example 4)

Referring to Fig. 5, a highly flexible torsion-resistant and tensile cable of this embodiment is basically the same as that of Embodiment 1, except that the high-strength fiber core 1 and the insulated wire core 3 are arranged in a cable at intervals, and a cable soft filling layer 5 is added in the middle of the cable. .

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. It should be understood that the above descriptions are only specific embodiments of the present utility model and are not intended to limit the present invention. For the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (3)

1. anti-tension cable of turning round of high flexibility, comprise conductor (2), insulated wire cores (3) and extruding restrictive coating (4), it is characterized in that: also have one or some high-intensity fiber cores (1), described high-intensity fiber core (1) places cable center or places the cable periphery with the stranding arrangement of described insulated wire cores (3) interval.

2. the anti-tension cable of turning round of high flexibility according to claim 1 is characterized in that: described high-intensity fiber core (1) adopts a branch of or a branch of above stranded forming, and wherein every bundle forms by glass fibre, basalt fibre or carbon fiber are stranded.

3. the anti-tension cable of turning round of high flexibility according to claim 1 is characterized in that: also have the soft packed layer (5) that places cable center.

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