CN211208020U - Watertight bearing comprehensive special-shaped flat cable - Google Patents

Abstract

The utility model discloses a special-shaped flat cable is synthesized in watertight bearing, two sets of bearing units are as the center, and bearing unit both sides parallel arrangement is arranged respectively in a set of power pack and a set of signal unit, and crowded package polyurethane is regarded as the oversheath at last. The utility model discloses a change cable construction and optimize cable bearing mode, when making the cable pass through winder or assembly pulley, reduce power pack and signal unit and receive pressure, reduced the impaired risk of cable core, ensured whole water proofness and reliability of cable, can regard as the frequent bearing connecting cable who receive and releases among the tensile system.

Description

Watertight bearing comprehensive special-shaped flat cable

Technical Field

The utility model relates to a watertight bearing synthesizes flat cable of dysmorphism belongs to the wire and cable field.

Background

The flat cable is a flat cable formed by combining a plurality of core wire conductors, and compared with a round cable, the flat cable saves more space. The flat cable has the performance characteristics of light weight, acid and alkali corrosion resistance, good toughness, bending resistance, radiation resistance, high and low temperature resistance and the like, can be freely used in large-scale equipment and small-scale equipment, can be used for mechanical power transmission and can also be used as a connecting cable of mobile electricity, the flat cable is commonly used for a large-scale shore crane (ship to shore) of a deep water port, RMG (track type gantry crane), a ship loader and unloader, a palletizer crane, a stacker crane, a deep well crane, an offshore platform and other heavy-duty carrying equipment, and is usually wound on a large-scale reel or a winding machine for preventing the cable from being entangled, worn, taken off, hooked and scattered, because the common flat cable structure adopts a parallel arrangement structure, the cable core and a bearing steel wire are stressed the same, when the cable is bent by the winding machine, the internal stress of the cable core is larger, especially when the cable bears huge weight, cause the sinle silk damage easily, the utility model discloses a change cable construction, optimize the cable bearing mode, thicken two sets of bearing unit sheaths, when making the cable pass through winder or assembly pulley, mainly by bearing unit pressure, reduce power pack and signal unit and receive pressure, reduced the impaired risk of cable sinle silk, improved cable life and security, have important social and economic meaning.

SUMMERY OF THE UTILITY MODEL

For filling the blank that the above field needs, the utility model discloses a lie in providing a special-shaped flat cable is synthesized to watertight bearing, the problem of the easy rupture of ordinary bearing flat cable damage sinle silk of successful solution has reduced the impaired risk of cable sinle silk through changing cable construction optimization cable bearing mode, has improved cable life and security, can regard as frequently receiving and releasing the bearing connecting cable among the tensile system.

The scheme of the utility model is as follows: a watertight load-bearing comprehensive special-shaped flat cable comprises a conductor,

the device also comprises a bearing unit, a power unit and a signal unit;

the cable takes the bearing unit as the center, the power unit and the signal unit are respectively arranged on two sides of the bearing unit in parallel, and polyurethane is extruded outside the bearing unit, the power unit and the signal unit to form a polyurethane outer sheath;

the conductor is externally extruded with a low-density polyethylene insulating layer to form a signal unit insulating wire core; the two strands of signal unit insulated wire cores and aramid fibers are filled and twisted in pairs and coated with water-blocking sealant to form an insulated wire core group;

the insulated wire core group is externally woven with tinned copper wires and coated with water-blocking sealant to form a shielded wire core group, and the four shielded wire core groups are added with aramid fibers to be filled and comprehensively formed into a cable and coated with water-blocking sealant to form a signal unit cable core;

a water-blocking wrapping tape isolating layer is arranged outside the signal unit cable core, a tinned round copper wire braided shielding layer is arranged outside the shielding layer, and a small polyurethane sheath II is extruded outside the shielding layer to form a signal unit;

the conductor is externally extruded with an irradiation crosslinked polyethylene insulating layer to form a power unit insulating wire core, and four strands of power unit insulating wire cores are comprehensively cabled and coated with water-blocking sealant to form a power unit cable core;

a water-blocking wrapping tape isolating layer is arranged outside the power unit cable core, and a small polyurethane sheath I is extruded outside the isolating layer to form a power unit;

two steel wire ropes extrude polyurethane (a small sheath III forms a bearing unit;

further, a plurality of strands of tinned round copper wires are stranded into a conductor and coated with a water-blocking sealant.

Further, the cross section of the cable sheath is a rectangle with four corners removed, namely a special-shaped octagonal flat sheath.

Furthermore, the signal unit and the power unit are both longitudinal watertight structures.

The insulation thickness of the irradiation crosslinked polyethylene insulation layer is 0.8-1.2 mm; the insulation thickness of the low-density polyethylene insulation layer is 0.4-0.8 mm; the thickness of the polyurethane sheath is 1.5-10.0 mm.

The utility model discloses a beneficial effect embodies:

1. excellent longitudinal water-tightness: the watertight load-bearing comprehensive special-shaped flat cable is characterized in that water-blocking sealant is coated on the conductor stranding layer, the optical fiber stranding layer, the cable core stranding layer and the braided shielding layer, so that the whole composite cable has good watertight performance, when the cable is broken due to external force, the watertight load-bearing comprehensive special-shaped flat cable bears 4.5MPa of longitudinal water pressure with the water depth of 450 meters, and can effectively prevent water from flowing longitudinally along the cable to damage equipment.

2. Excellent tensile properties: the watertight load-bearing comprehensive special-shaped flat cable adopts two steel wire ropes to extrude a small polyurethane sheath to form a load-bearing unit, so that the cable has excellent load-bearing tensile capacity, and the breaking-resistant tensile force of the cable can reach 200 kN.

3. Reliability of use: the use reliability of the cable is fully considered in the design process, the cable adopts two groups of bearing units as centers when being designed, a group of power units and a group of signal units are respectively arranged on two sides of the bearing units in parallel, the cable sheath is a deformed octagonal flat sheath, the cable bearing mode is optimized, the two groups of bearing unit sheaths are thickened, when the cable passes through a winding machine or a pulley block, the bearing units bear pressure, the power units and the signal units bear pressure, the damage risk of cable cores is reduced, and the use reliability of the cable is improved.

4. Good seawater corrosion resistance and wear resistance: the watertight load-bearing comprehensive special-shaped flat cable adopts polyurethane, has high strength, hydrolysis resistance, oil resistance, high resilience and good low-temperature performance, and is generally suitable for products in contact with water. The material has high tensile strength, flexibility, toughness, elasticity and good low temperature resistance, and simultaneously has salt spray resistance, mould resistance and seawater corrosion resistance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, the structure of the watertight load-bearing comprehensive special-shaped flat cable channel of the embodiment is as follows: a plurality of tinned round copper wires are stranded into a conductor 1 and coated with water-blocking sealant, the conductor 1 is externally extruded with an irradiation crosslinked polyethylene insulating layer to form a power unit insulating wire core, and the conductor 1-1 is externally extruded with a low-density polyethylene insulating layer 3 to form a signal unit insulating wire core.

The four power unit insulated wire cores are comprehensively cabled and coated with water-blocking sealant to form a power unit cable core, a water-blocking tape isolating layer 4 is arranged outside the power unit cable core, and a small polyurethane sheath I5 is extruded outside the isolating layer 4 to form a power unit; 6 pairs of two strands of signal unit insulated wire cores and aramid fibers are filled and coated with water-blocking sealant to form an insulated wire core group, tinned copper wires 7 are woven outside the insulated wire core group and coated with the water-blocking sealant to form a shielded wire core group, aramid fibers are added to the four shielded wire core groups to fill 6-1, comprehensive cabling is carried out, water-blocking sealant is coated to form a signal unit cable core, a water-blocking tape 4-1 is arranged outside the signal unit cable core, tinned round copper wires are woven to form a shielded layer 7-1, and a small polyurethane sheath II 5-1 is extruded outside the shielded layer 7-1 to form a signal unit; two steel wire ropes 8 extrude out of a polyurethane small sheath III 5-2 to form a bearing unit.

Two groups of bearing units are used as centers, one group of power units and one group of signal units are respectively arranged on two sides of the bearing units in parallel, and finally polyurethane is extruded to be used as an outer sheath 5-3.

The utility model discloses special-shaped flat cable is synthesized in watertight bearing possesses good electrical property and mechanical properties, has good water proofness and excellent tensile properties simultaneously, through changing cable construction optimization cable bearing mode, when making the cable pass through winder or assembly pulley, it receives pressure to reduce power pack and signal unit, has reduced the impaired risk of cable core, has ensured whole water proofness and reliability of cable, can be used to frequently receive and release the bearing connecting wire cable among the tensile system, important development prospect has.

The structure and performance indexes of the watertight load-bearing comprehensive special-shaped flat cable are listed in the table 1,

TABLE 1

Although specific embodiments of the present invention have been described and illustrated in detail, it should be understood that various equivalent changes and modifications can be made to the above embodiments in accordance with the present invention, and the functional effects thereof without departing from the spirit of the present invention are also within the scope of the present invention.

Claims (5)

1. The utility model provides a special-shaped flat cable is synthesized in watertight bearing, includes the conductor, its characterized in that:

the device also comprises a bearing unit, a power unit and a signal unit;

the cable takes the bearing unit as the center, the power unit and the signal unit are respectively arranged on two sides of the bearing unit in parallel, and polyurethane is extruded outside the bearing unit, the power unit and the signal unit to form a polyurethane outer sheath;

the conductor is externally extruded with a low-density polyethylene insulating layer to form a signal unit insulating wire core; the two strands of signal unit insulated wire cores and aramid fibers are filled and twisted in pairs and coated with water-blocking sealant to form an insulated wire core group;

the insulated wire core group is externally woven with tinned copper wires and coated with water-blocking sealant to form a shielded wire core group, and the four shielded wire core groups are added with aramid fibers to be filled and comprehensively formed into a cable and coated with water-blocking sealant to form a signal unit cable core;

a water-blocking wrapping tape isolating layer is arranged outside the signal unit cable core, a tinned round copper wire braided shielding layer is arranged outside the shielding layer, and a small polyurethane sheath II is extruded outside the shielding layer to form a signal unit;

the conductor is externally extruded with an irradiation crosslinked polyethylene insulating layer to form a power unit insulating wire core, and four strands of power unit insulating wire cores are comprehensively cabled and coated with water-blocking sealant to form a power unit cable core;

a water-blocking wrapping tape isolating layer is arranged outside the power unit cable core, and a small polyurethane sheath I is extruded outside the isolating layer to form a power unit;

two steel wire ropes extrude a polyurethane small sheath III to form a bearing unit.

2. A watertight load-bearing integrated shaped flat cable according to claim 1, characterized in that: a plurality of tinned round copper wires are stranded into a conductor and coated with a water-blocking sealant.

3. The watertight load-bearing complex shaped flat cable as claimed in claim 1, wherein said polyurethane outer sheath cross-section is rectangular with four corners removed, i.e. a cross-section of a cross-.

4. The watertight load-bearing complex shaped flat cable as claimed in claim 1, wherein said signal unit and power unit are both longitudinal watertight structures.

5. The watertight load-bearing comprehensive special-shaped flat cable according to claim 1, wherein the insulation thickness of the irradiation crosslinked polyethylene insulation layer is 0.8-1.2 mm; the insulation thickness of the low-density polyethylene insulation layer is 0.4-0.8 mm; the thickness of the polyurethane sheath is 1.5-10.0 mm.

Images