CN215834291U - Microgravity bearing tensile towing cable - Google Patents

Abstract

The utility model relates to a microgravity bearing tensile towing cable which comprises a plurality of coaxially and uniformly dispersed insulating core wires and a protective layer covering the peripheries of all the insulating core wires, wherein each insulating core wire comprises a conductive core and an insulating layer, the insulating layer covers the conductive core, a central bearing cable core is arranged at the axis of each insulating core wire, the insulating core wires are uniformly covered on the periphery of the central bearing cable core, and a gap between each insulating core wire and the protective layer is filled with sealant. The peripheral cladding of sheath has the shielding layer, the shielding layer is aluminium foil or copper wire woven shield layer, and the outer cladding of shielding layer has the oversheath.

Description

Microgravity bearing tensile towing cable

Technical Field

The utility model relates to a microgravity bearing tensile towing cable, and belongs to the technical field of cables.

Background

At present, cables with strong adaptability and bearing capacity are needed in the processes of antenna dragging, sensing detection, power transmission cables and various occasions including national defense, scientific research, military industry and energy exploration and production. For many extreme environments, cables have not been designed to be adaptable and satisfactory, making it difficult to perform high-precision experiments or project work in such environments. In the existing underwater operation, particularly in marine investigation, the problem that seawater corrodes cables and the cables are broken due to overlarge pressure easily exists during the operation in the sea, if the stay time is long underwater, the cables are easily broken due to the overlarge pressure to cause electric shock, equipment is damaged accordingly, casualties can be seriously caused, and the potential safety hazard is very large. However, the current cable capable of bearing load generally has the characteristics of corrosion resistance or pressure resistance and the like which can not meet the operation requirements. There is a great need for corrosion resistant, load bearing and crush resistant cables to avoid such occurrences.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in view of the above problems, the utility model aims to provide a microgravity load-bearing tensile towing cable which can be operated underwater, is resistant to compression, tension and corrosion and is convenient for various use environments.

The technical scheme is as follows: the utility model provides a microgravity bearing tensile towing cable, includes coaxial homodisperse's a plurality of insulation heart yearn and cladding at all insulation heart yearn outlying sheaths, insulation heart yearn includes electrically conductive core and insulating layer, the insulating layer parcel is in outside the electrically conductive core, insulation heart yearn axle center is provided with central bearing cable core, and the even cladding of insulation heart yearn is peripheral at central bearing cable core, and the clearance packing between insulation heart yearn and the sheaths has sealed glue.

Further, the peripheral cladding of sheath has the shielding layer, the shielding layer is aluminium foil or copper wire woven shield, and the outer cladding of shielding layer has the oversheath.

Furthermore, a plurality of steel wires are uniformly distributed on the inner circumference of the central bearing cable core, and the steel wires are axially parallel or axially spiral with the cable profile.

Further, the conductive core is an optical fiber conductor.

Furthermore, there are several optical fiber conductors, and each optical fiber conductor is a single-mode optical fiber or a multimode optical fiber.

Further, the protective layer is a fluoroplastic layer or a polyurethane layer.

Further, the outer sheath is a polyolefin layer or a cross-linked polyethylene layer.

Has the advantages that: compared with the prior art, the utility model has the following remarkable advantages: the corrosion-resistant, compression-resistant and tensile-resistant device is strong in characteristic, convenient for underwater operation, high in efficiency and fast, and meanwhile, people and equipment are prevented from being damaged.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

in the figure: 1-insulating layer, 2-conductive core, 3-protective layer, 4-outer sheath, 5-central bearing cable core, 6-shielding layer.

Detailed Description

The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the utility model, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.

As shown in fig. 1, a microgravity bearing tensile towing cable, the external diameter is 60mm, has 7 insulating heart yearns of coaxial homodisperse, and the cladding of sheath 3 is peripheral at all insulating heart yearns, and sheath 3 chooses for use fluoroplastics layer or polyurethane layer for resistant sea water anticorrosion, is corrosion-resistant macromolecular material, gets the polyurethane layer in this embodiment. Each insulating core wire comprises a conductive core 2 and an insulating layer 1, the conductive core 2 is an optical fiber conductor, the optical fiber conductors are a plurality of, and each optical fiber conductor is a single-mode optical fiber or a multimode optical fiber. The insulating layer 1 wraps the conductive core 2, a central bearing cable core 5 is arranged at the axis of the insulating core, the insulating core is uniformly wrapped on the periphery of the central bearing cable core 5, a plurality of steel wires are uniformly distributed on the inner circumference of the central bearing cable core 5, and the steel wires are axially parallel or axially spiral with the cable section. The clearance packing between insulating heart yearn and sheath 3 has sealed glue, thereby sealed glue is through sealed clearance by the intensity of watertight performance enhancement cable here, stabilizes the inside insulating heart yearn of cable and other coatings simultaneously. The protective layer 3 is peripherally wrapped with a shielding layer 6, the shielding layer 6 is an aluminum foil or copper wire woven shielding layer, and the shielding layer 6 is externally wrapped with an outer sheath 4. The outer sheath 4 is a polyolefin layer or a cross-linked polyethylene layer. The insulating layer 1 and the outer sheath 4 are crosslinked polyethylene layers. The center of the insulating core wire is provided with a center bearing cable core 5, and the insulating core wire is uniformly coated on the periphery of the center bearing cable core 6. The peripheral cladding of sheath 3 has shielding layer 6, shielding layer 6 is aluminium foil or copper wire woven shield layer, and this embodiment weaves total shielding layer for the aluminium foil, can shield the interference that other signals brought, and furthest's assurance operation is not influenced. The shielding layer 6 is coated with the outer sheath 4.

The insulation performance of this example was measured to be 1800v withstand voltage and not to break down after at least 1 minute. The cable can bear the water pressure higher than 3.5Mpa and can reach 30Mpa at most, the vulcanization needs to be kept for 2 hours under the condition that the temperature reaches 100 ℃, the cable can work in the environment of-40 ℃ to 70 ℃ for a long time, and the central bearing cable core 6 can bear the tension of 5kN to 500 kN. Can meet the requirement of extreme operation.

Claims (7)

1. The utility model provides a microgravity bearing tensile drags cable which characterized in that: including coaxial homodisperse's a plurality of insulation heart yearn and cladding at all insulation heart yearn outlying sheath (3), insulation heart yearn includes conductive core (2) and insulating layer (1), insulating layer (1) parcel is in outside conductive core (2), the insulation heart yearn axle center is provided with central bearing cable core (5), and the even cladding of insulation heart yearn is peripheral at central bearing cable core (5), and the clearance packing between insulation heart yearn and sheath (3) has sealed glue.

2. The microgravity load-bearing tensile trailing cable of claim 1, wherein: the protective layer (3) periphery is wrapped with shielding layer (6), shielding layer (6) are aluminium foil or copper wire woven shield, and shielding layer (6) outer cladding has oversheath (4).

3. The microgravity load-bearing tensile trailing cable of claim 1, wherein: a plurality of steel wires are uniformly distributed on the inner circumference of the central bearing cable core (5), and the steel wires are axially parallel or axially spiral with the cable profile.

4. The microgravity load-bearing tensile trailing cable of claim 1, wherein: the conductive core (2) is an optical fiber conductor.

5. The microgravity load-bearing tensile trailing cable of claim 4, wherein: the optical fiber conductors are provided with a plurality of optical fiber conductors, and each optical fiber conductor is a single-mode optical fiber or a multimode optical fiber.

6. The microgravity load-bearing tensile trailing cable of claim 1, wherein: the protective layer (3) is a fluoroplastic layer or a polyurethane layer.

7. The microgravity load-bearing tensile trailing cable of claim 2, wherein: the outer sheath (4) is a polyolefin layer or a cross-linked polyethylene layer.

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