CN217061540U - High-strength composite cable for ship dragging sonar - Google Patents

Abstract

The utility model provides a naval vessel drags high strength composite cable for sonar which is from interior to exterior coaxial being equipped with in proper order: center pad core, the metallic shield layer, the dampproof course, interior sheath, steel wire enhancement layer I, outer sheath is woven to steel wire enhancement layer II and fibre, metallic shield layer cladding control core conductor, control core insulator, the control line pair, center pad core and return wire, the control line is to containing control core conductor and control core insulator, wherein control core conductor, control core insulator, the control line pair, center pad core, the return wire, the metallic shield layer constitutes this high strength composite cable's control signal transmission unit jointly, power core conductor, power core insulator, power core filler strip, the dampproof course, interior sheath constitutes composite cable's power transmission unit jointly. The composite cable has the advantages of functional composite property, small space and the like, ensures the mechanical property, and avoids the serious loss caused by the falling of the sonar due to the fracture of the cable in the dragging process.

Description

High-strength composite cable for ship dragging sonar

Technical Field

The utility model relates to a be used for the naval vessel to pull signal and power transmission composite cable for the sonar, concretely relates to naval vessel pulls high strength composite cable for the sonar.

Background

The rapid development of the ship industry in China further draws the market demand of ship/ship cables. Influenced by the working environment of the ship, the cables used on the ship are basically special cables, including special wires and cables for dragging sonar by the ship.

Generally, there are three main functional cables for cables used on ships: the main use modes of the control cable, the signal cable and the power cable are divided and combined. At present, the functional cables are separately and independently used, occupy large space and are complex in wiring, so that the functional cables are not suitable for being used on the occasion with small space, such as a ship.

At present, dragging power cables are generally adopted in China to replace cables for ships dragging sonar to overcome the difficulties. Generally, a control cable is generally independently arranged, although the cable can meet the requirements of steel wire dragging and power supply under the sea, the requirements on seawater corrosion resistance, communication capacity, anti-interference performance and the like cannot be guaranteed, particularly, the steel wire can be rusted and broken after being corroded by seawater for a long time, the tensile strength of the cable is reduced, the cable is easy to break when being dragged in the lifting and dragging process, the end connector falls off, is hidden in the sea bottom and cannot be found, and great economic loss and important accidents are caused. For example, the army officer, reported in U.S. the army time-of-flight, 12-month, 2-month, 2021, confirms that two carrier-based aircraft on a "carl-wensen" aircraft carrier are involved in two "class a" accidents in succession. Wherein, the sonar hung on the anti-diving helicopter falls off and falls into the pacific, so that the sonar cannot be recovered.

Therefore, the design and manufacture of the dragging power cable are difficult, and the most difficult is how to solve the important problems of the design of seawater corrosion resistance of the cable steel wire and the design of a composite structure of a control signal and a power transmission function of the cable. The composite cable has the advantages of light overall weight, small space, complete functions and the like, and particularly, the tensile strength of the composite cable needs to be improved remarkably.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned prior art not enough, the utility model provides a naval vessel pulls high strength composite cable for sonar, guarantee to accord with the cable to the power (for example electric power) transmission performance's of the driving system equipment of end coupling under the prerequisite, the synchronous increase is to the control signal and the low pressure electric power transmission performance of end coupling sonar system, especially adopt zinc-aluminium alloy cladding material steel wire and weave the design of coating on this basis, can effectively prolong composite cable's tensile strength, its mechanical rigidity performance has been guaranteed, especially, use the zinc-aluminium alloy cladding material steel wire tensile element that has resistant sea water corrosivity, composite cable's security and practicality have been improved.

The technical scheme of the utility model is that: the utility model provides a naval vessel pulls high strength composite cable for sonar which is from interior to exterior coaxial being equipped with in proper order: the high-strength composite cable comprises a center filling wire core, a metal shielding layer, a moisture-proof layer, an inner protection layer, a steel wire reinforcing layer I, a steel wire reinforcing layer II and a fiber woven outer protection layer, wherein a control wire core conductor, a control wire core insulator, a control wire pair, a center filling wire core and a return wire which are arranged in parallel are coated in the metal shielding layer, the control wire pair contains the control wire core conductor and the control wire core insulator, the center filling wire core is arranged at the central position of the metal shielding layer to fill the gap between the control wire pair, a power wire core insulator is arranged between the metal shielding layer and the moisture-proof layer, the power wire core insulator is filled with at least one power wire core filling strip, and the control wire core conductor, the control wire core insulator, the control wire pair, the center filling wire core, the return wire and the metal shielding layer jointly form a control signal transmission unit of the high-strength composite cable, the power transmission unit of the composite cable is formed by the power wire core conductor, the power wire core insulator, the power wire core filling strip, the moisture-proof layer and the inner protection layer.

As a preferred embodiment, one or more of the control wire core conductor, the return wire and the power wire core conductor is/are the tin-plated copper conductor meeting the sixth requirement of GB/T3956-. The composite cable has the beneficial effects that the bending performance of the composite cable is improved, the composite cable is not easy to damage, and meanwhile, the sixth conductor is adopted, so that the service life of the composite cable is effectively prolonged.

As an improvement, the control wire core insulator, the power wire core insulator and the inner protection layer are formed by extruding Polyethylene (PE) materials, so that a uniform cylindrical body is formed. The paint has the advantages that the paint can effectively resist low temperature, can be used at the low temperature of-70 ℃ without brittle fracture and hardening; the cable is high in water resistance, can be immersed in water for a long time, keeps the dielectric property unchanged, and is suitable for the insulation and sheath layer of a submarine or underwater cable; the waterproof paint has the advantages of air permeability resistance, moisture permeability resistance and excellent barrier property under certain seawater pressure, temperature and humidity; and meanwhile, the chemical stability of the composite cable can be improved.

As a further improvement, a plurality of pairs of control wire pairs and return wires are alternately arranged, and a plurality of pairs of power wire core insulators are arranged around the metal shielding layer.

In some implementations, the signal transmission unit of the high-strength composite cable is formed by the control wire core conductor, the control wire core insulator, the control wire pair, the center filling wire core, the return wire and the metal shielding layer together, and the improvement has the beneficial effect of enhancing the anti-interference capability of transmission signals while increasing the transmission performance of control signals. This is because the return wires (shield conductors) and the metal shield layers can effectively reduce mutual crosstalk and external interference between the circuits, and the return wires can be used as monitoring structural elements.

In other implementations, the power transmission unit of the high-strength composite cable jointly composed of the power core conductor, the power core insulator, the power core filling strip, the moisture-proof layer and the inner protection layer has the advantages that the power core conductor and the filling strip use the center filling core as the circle center, and are sparsely wound outside the control cable unit, so that the roundness and the stability of the cable are ensured, the tensile strength of the composite cable is improved, the filling material is reduced, and the cost is obviously saved.

As another preferred embodiment, the steel wire reinforcing layer I and the steel wire reinforcing layer II can adopt zinc-aluminum alloy coating steel wires with high seawater corrosion resistance and are arranged into a double-layer forward and reverse tightly sparse winding steel wire array structure. The zinc-aluminum alloy coating can play a long-term protection role on a steel matrix in a seawater environment, and the steel wire composite cable has the advantages that the tensile strength of the steel wire is kept, the mechanical property of the steel wire is guaranteed, meanwhile, the structure is more stable due to the forward and reverse sparse winding array form of the double-layer steel wire reinforcing structure, and the service life of the composite cable is effectively prolonged.

In another preferred embodiment, the outer sheath is woven with high-strength polyester fibers, and is arranged in a woven array structure with high-strength polyester fibers, and a layer of nitrocellulose lacquer is coated on the surface of the outer sheath. The composite cable has the beneficial effects of improving the oil resistance, ozone resistance and moisture resistance of the composite cable.

In any of the above preferred embodiments, the control line pair is functionally differentiated and identified by different colors. The color identification type wire connector has the beneficial effects that the color identification is convenient for construction wiring. Or in some preferred embodiments, the power core insulator is functionally differentiated using, for example, digital offset printing. The digital identification type wire connector has the beneficial effects that the digital identification is convenient for construction wiring.

In the above preferred embodiment, the inner sheath, the steel wire reinforcing layer I, the steel wire reinforcing layer II, and the fiber-woven outer sheath are disposed closely to each other, thereby significantly reducing the design space.

In the technical scheme listed in the utility model, the composite function and the safety of the cable, especially the cable for towing ships and warships are taken into consideration, and the design concept of integrating the unit which simultaneously has the control signal, the power transmission and the safe towing into a unified whole is proposed, compared with the traditional towing power cable, the cable has the characteristics of complete function, small occupied space, safe towing and long service life; the utility model discloses the naval vessel pulls the composite cable for sonar and has wide market perspective. The cable has the functional characteristics, so that the cable is suitable for special equipment occasions such as ships and offshore platforms.

The utility model discloses following technological effect has: the cable can play the roles of steel wire dragging, signal control and power transmission. In the cable structure, the conductors adopt tinned copper conductors, so that the copper wires can be prevented from being oxidized and blackened when being wetted at high temperature, and the weldability of the copper wires and the barrier effect between the copper wires and the insulation are improved. And the control shielding cable unit adopts a return line to load a metal shielding layer, so that mutual crosstalk and external interference among loops can be effectively reduced, and the anti-interference performance of signal transmission is improved. Simultaneously, because of its structure softness, signal control loading power transmission's combined performance, make the utility model discloses this kind of high strength cable has superior bending property and multi-functional complex characteristic. The special double-layer zinc-aluminum alloy coating steel wire is additionally provided with the woven coating, so that the tensile strength of the composite cable can be effectively prolonged, the mechanical property of the composite cable is ensured, the safety of the cable is improved, and the additional value of the cable is further improved. The tangible benefit and intangible benefit brought by the technology are very obvious.

Drawings

The patent is further described with reference to the drawings and the embodiments. It should be understood that the present invention provides a composite cable presented as a minimum unit, particularly better illustrated in cross-sectional view, and the length of such composite cable can be freely selected according to the actual production needs. Wherein

Fig. 1 is a schematic cross-sectional view of the high-strength composite cable structure of the present invention.

Detailed Description

As shown in fig. 1 the utility model discloses the naval vessel pulls among the high strength composite cable embodiment for the sonar, the cable has set gradually control core conductor 1, control core insulator 2, control line pair 3, center filler core 4, backflow line 5, metallic shield 6, power core conductor 7, power core insulator 8, power core fill 9, dampproof course 10, inner sheath 11, steel wire enhancement layer I12, steel wire enhancement layer II 13, fibre weave outer jacket 14 from inlayer to skin respectively.

The control core conductor 1 adopts a sixth tin-plated copper conductor conforming to GB/T3956-. The copper wire has certain flexibility, and the strength of the copper wire conductor can be increased. On the other hand, after the copper wire is tinned, the oxidation resistance of the copper wire can be improved, the copper wire is not easy to oxidize and blacken under high temperature and high humidity, and meanwhile, the weldability of the copper wire and the barrier effect between the copper wire and insulation can be improved.

Preferably, the control wire core insulator 2 is extruded from PE insulation through an extruder. The polyethylene material which can resist low temperature, has good chemical stability and particularly has strong moisture permeability resistance is adopted, and each core insulation is made of different colors for functional distinction.

In addition, preferably, the control wire pair 3 is produced by adopting an extrusion process, the structure is that two control wire cores are twisted and then a layer of PE sheath is extruded, the longitudinal water resistance is better, and the PE material with the characteristics of low temperature resistance, good chemical stability, moisture permeability resistance, higher hardness and strength, strong radiation resistance and the like is adopted. The central filling wire core 4 is used for filling gaps among the cable cores, so that the cable core is more stable and round. For example, the center-filled wire core 4 may employ a PE filler strip.

The "array" referred to in the present invention is a continuous spaced unit structure including any available braided structure, twisted, multi-twisted wire bundle, for example, a lattice structure formed by braiding different kinds of metal wires alternately with a predetermined gap, and the lattice structure can be extended repeatedly in a certain plane. As mentioned earlier, when braided using such a mesh structure, the composite cables may vary in length, but all have a minimum of repeating mesh units.

The "power transmission unit" and the "signal transmission unit" refer to an external assembly of a wire harness, a wire core, and the like, which are connected by using the composite cable and whose ends are required for the functions of the connector sonar equipment, and peripheral equipment, and include a control assembly for driving and controlling the reciprocating transmission of on-line analog/digital signals, or electric power equipment which requires low-voltage power supply to drive a high-voltage power system, for example.

In addition, it is preferable that the selected impedance of the return wire 5 and the ground resistance at both ends thereof can suppress the power-frequency induced overvoltage of the cable metal layer and meet the thermal stability requirement under the action of the maximum transient current of the cross section thereof, and the spaced arrangement configuration mode shown in fig. 1 can also ensure that the loss generated on the return wire 5 when the high-strength composite cable operates is minimum, and can be used as a monitoring element (when a short circuit to the outside occurs or there is no insulation resistance, it can be said that the outer sheath is damaged and defective, and the shielding unit can be found in connection with the ground). Similarly, the reflow line 5 adopts a sixth tin-plated copper conductor in accordance with GB/T3956-.

On the basis, the metal shielding layer 6 coated on the outer layer of the return wire 5 consists of an aluminum/plastic composite strip body which is lapped and lapped, wherein the metal surface layer faces inwards, and the minimum lapping rate is not less than 20%.

In the above preferred example, the power core conductor 7 can also be the sixth tin-plated copper conductor in GB/T3956-2008, on one hand, the sixth conductor has a thinner monofilament diameter than the first, second and fifth conductors, and has good flexibility, longer bending life and easier bending. And the copper wire has certain flexibility, and the strength of the copper wire conductor can be increased. On the other hand, after the tinning treatment of the copper wire, the oxidation resistance of the copper wire can be improved, the copper wire is not easy to oxidize and blacken in a high-temperature and high-humidity environment, and meanwhile, the weldability of the copper wire and the barrier effect between the copper wire and any insulator can be improved.

Similarly, the power core insulator 8 may be formed by extruding PE insulation through an extruder, and each core insulator is functionally identified by a numerical identifier.

In the above preferred example, the power core filler strip 9 is used for filling the gap between the cable cores, so that the cable core is more round and the tensile strength of the cable core is ensured. For example, the power line core filler strip 9 may be formed by a PE filler strip.

On the basis, the moisture-proof layer 10 is formed by lapping and overlapping non-hygroscopic lapping materials, a layer of environment-friendly polyester tape can be adopted usually, and the lapping and covering rate is not less than 30%. The inner protective layer 11 should be designed as an extruded inner liner layer, should not be adhered with a shielding layer and an armor layer, and also can be made of PE material.

In the above preferred example, the steel wire reinforcing layer I12 is a zinc-aluminum alloy coated steel wire, the zinc-aluminum alloy coating can protect the steel substrate for a long time in a seawater environment, and the inner steel wire is arranged in the right direction when loosely wound. The steel wire reinforcing layer II 13 can also be a zinc-aluminum alloy coating steel wire, the zinc-aluminum alloy coating can play a long-term protection role on a steel matrix in a seawater environment, and the outer steel wire is arranged in the left direction when the steel wire is loosely wound. In addition, the fiber-woven outer protective layer 14 is a high-strength polyester fiber woven structure, so that the rigidity and the tensile resistance are obviously improved, and a layer of nitrocellulose paint is coated to improve the corrosion resistance.

Claims (8)

1. The utility model provides a naval vessel pulls sonar and uses high strength composite cable which characterized in that: the composite cable is coaxially provided with the following components from inside to outside in sequence: center-packed core (4), metallic shield (6), dampproof course (10), interior sheath (11), steel wire enhancement layer I (12), steel wire enhancement layer II (13) and outer jacket (14) are woven to the fibre, the cladding has control sinle silk conductor (1), control sinle silk insulator (2), control line pair (3), center-packed core (4) and backward flow (5) of parallel arrangement each other in metallic shield (6), control sinle silk conductor (1) and control sinle silk insulator (2) are contained in control line pair (3), center-packed sinle silk (4) are located metallic shield (6) central point department with the clearance each other of filling control line pair (3), be equipped with power sinle silk insulator (8) between metallic shield (6) and dampproof course (10), power sinle silk insulator (8) are filled by at least one power sinle silk filler (9) each other, wherein

The control signal transmission unit of the high-strength composite cable is formed by the control wire core conductor (1), the control wire core insulator (2), the control wire pair (3), the center filling wire core (4), the return wire (5) and the metal shielding layer (6) together,

the power transmission unit of the composite cable is formed by the power wire core conductor (7), the power wire core insulator (8), the power wire core filling strip (9), the moisture-proof layer (10) and the inner protection layer (11) together.

2. The high strength composite cable of claim 1, wherein: the control wire pairs (3) and the return wires (5) are alternately arranged in a plurality of pairs, and the power wire core insulators (8) are arranged in a plurality of pairs around the metal shielding layer (6).

3. The high strength composite cable according to claim 1 or 2, characterized in that: the control wire core insulator (2), the power wire core insulator (8) or the inner protection layer (11) is a uniform cylindrical body formed by extruding PE materials.

4. The high strength composite cable of claim 3, wherein: the power wire core insulators (8) are in a plurality of groups, and digital symbols are printed on the surfaces of the power wire core insulators to carry out function distinguishing identification.

5. The high strength composite cable according to claim 1 or 2, characterized in that: the control line pairs (3) are in a plurality of groups, and different colors are adopted for function distinguishing and identification.

6. The high strength composite cable of claim 1, wherein: the steel wire reinforcing layer I (12) and the steel wire reinforcing layer II (13) are arranged into a double-layer forward and reverse tight sparse winding steel wire array structure.

7. The high strength composite cable of claim 1, wherein: the fiber woven outer protective layer (14) is arranged into a woven array structure with high-strength polyester fiber characteristics, and a nitrocellulose paint layer is coated on the surface of the fiber woven outer protective layer.

8. The high strength composite cable of claim 1, wherein: the inner protective layer (11), the steel wire reinforcing layer I (12), the steel wire reinforcing layer II (13) and the fiber woven outer protective layer (14) are closely attached to each other.

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