CN217086193U - Bending-resistant scratch-resistant type drum cable - Google Patents

Abstract

The utility model discloses a resistant scratch-resistant type reel cable of bending, constitute the cable core around a Y shape silicon rubber packing core interval equipartition and jointly with the transposition of three control core including three power sinle silk, Y shape silicon rubber packing core has been seted up and has been indulged the hole, it is equipped with the steel wire and strengthens the core to indulge the downthehole endotheca, the power sinle silk includes the power conductor, EPT rubber isolation layer and XLPE insulating layer, the control sinle silk includes three or four insulation core common transposition constitution line cores, the outside cladding of sinle silk has the crowded package insulating layer of polyethylene, insulation sinle silk includes the inner conductor, nylon resin winds package isolation layer and foaming polyethylene insulating layer, the outside cladding of cable core has ETFE resin in proper order and winds package antifriction layer, butyronitrile polyvinyl chloride inner sheath layer, the antitorque package of nylon wire, butyronitrile polyvinyl chloride outer sheath layer and EVA wearing layer. The cable has excellent bending resistance, no distortion phenomenon, better scraping and abrasion resistance of the sheath and prolonged service life.

Description

Bending-resistant scratch-resistant type drum cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a resistant scratch-resistant type reel cable of bending.

Background

The drum cable is applied to large-scale hoisting machinery, such as a stacker-reclaimer, a gantry crane, a traveling crane, a rocker arm crane, a wharf hoisting machine, a tippler, a bucket wheel machine, a winding machine, a conveyor, a cable winder, a movable traveling crane, a crown block and various large-scale mobile equipment. Under strict conditions, the reel cable needs to be suitable for all-weather work in various environments and different climates, and the oil resistance and the weather resistance have standard requirements. However, many faults are common to the reel cable during long-term operation, which affects the normal production sequence. For example, the bending resistance and tensile property are insufficient, the cable is twisted and deformed after being stressed, and the core is broken and the wire is broken, so that the cable is scrapped. The cable sheath has poor scraping and abrasion resistance, easily causes core wire insulation abrasion, and causes fatal damage and potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, the technical problem that solve provides a resistant scraping and grinding type reel cable of anti-bending, and the cable core structure is balanced stable, and anti bending property is excellent, and no distortion phenomenon, the resistant scraping and grinding performance of sheath are better, extension cable life.

The utility model discloses a make above-mentioned technical problem solve through following technical scheme.

Anti-bending and anti-scraping type reel cable, including three power core around a Y shape silicon rubber filler interval equipartition and constitute the cable core with three control core transposition jointly, the longitudinal hole has been seted up to Y shape silicon rubber filler, the longitudinal hole endotheca is equipped with steel wire reinforcement core, steel wire reinforcement core is a plurality of aramid fiber bundles and zinc-plated steel wire transposition formation, the longitudinal hole intussuseption is filled with insulating and lubricating silicone grease, power core includes power conductor, EPT rubber isolation layer and XLPE insulating layer, control core includes that three or four insulation core twist together and construct the line core, the outside cladding of line core has the crowded package insulating layer of polyethylene, insulation core includes inner conductor, nylon resin winds package isolating layer and foamed polyethylene insulating layer, the cable core outside cladding has ETFE resin in proper order around package antifriction layer, polyvinyl chloride inner sheath layer, The nylon wire anti-torsion wrapping layer, the butyronitrile polyvinyl chloride outer sheath layer and the EVA wear-resistant layer.

Preferably, the wire diameter of the galvanized steel wire is 0.05mm to 0.08mm, and the wire diameter of the galvanized steel wire is not more than 85% of the wire diameter of the aramid fiber bundle.

Preferably, the aramid fiber bundles are formed by twisting a plurality of aramid fibers and integrally bonding the aramid fibers and thermoplastic polypropylene resin in a hot melting way.

Preferably, the power conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.05mm to 0.08 mm.

Preferably, the twisted length of the tin-plated copper monofilament is 10mm to 16 mm.

Preferably, the inner conductor is formed by co-twisting a plurality of tinned copper wires and a plurality of para-type wholly aromatic copolyamide drawn fibers, and the wire diameter of each tinned copper wire is 0.02mm to 0.04 mm.

Preferably, the nylon wire anti-twisting wrapping layer is of a structure that inner and outer double-layer nylon strands are spirally wound and woven in opposite directions, and the diameter of each nylon strand is 0.15mm to 0.28 mm.

Preferably, the outer surface of the butyronitrile polyvinyl chloride inner sheath layer and the inner surface of the butyronitrile polyvinyl chloride outer sheath layer are both provided with thermoplastic polyurethane bonding layers.

Preferably, the ETFE resin lapping antifriction layer is gap lapping and the lapping distance is 2 to 4 times of the bandwidth.

Preferably, the thickness of the EVA wear-resistant layer is not less than 0.3 mm.

The utility model has the advantages that:

1. three power sinle silk centers on the Y shape silicon rubber packing core equipartition of special construction, lateral pressure when helping bearing the bending improves the bending resistance of cable, the steel wire reinforced core is aramid fiber tow and zinc-coated steel wire transposition formation, has high tensile strength, excellent tensile resistance, in the aspect of the lateral pressure resistance, can unload the power to the load stress of externally applying on the cable core to a certain extent, reduce sinle silk local stress concentration, avoid each sinle silk to take place disconnected core disconnection, improve the pliability and the tensile resistance of cable.

2. The nylon wire anti-torsion wrapping layer is arranged between the inner sheath layer and the outer sheath layer of the butyronitrile polyvinyl chloride, the nylon wire anti-torsion wrapping layer has high strength and large tensile elastic modulus, and can be bonded with the inner sheath layer and the outer sheath layer into a whole through the thermoplastic polyurethane bonding layer, so that the cable is effectively prevented from being twisted after being stressed, the stability of the electrical characteristics of the cable is ensured, and the service life is prolonged.

3. The butyronitrile polyvinyl chloride inner and outer sheath layers have high tensile strength, tear resistance, wear resistance, oil resistance and excellent weather resistance, stress points are concentrated through the reinforced extrusion structure, the fact that a core and a sheath in a cable core are not separated in the winding process of the cable is guaranteed, safe and reliable operation of the cable is guaranteed, and durability and usability are better.

4. The outside cladding EVA wearing layer of cable sheath, and compromise and optimize thickness, the effectual resistant scraping and grinding performance of cable sheath that has improved, the inhibition wearing and tearing take place, prevent the crust fracture increase of service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.

Reference numerals: the cable comprises a power wire core 1, a power conductor 11, an ethylene propylene diene monomer isolation layer 12, an XLPE insulation layer 13, a silicone rubber filling core 2-Y, a control wire core 3, an insulation wire core 31, an inner conductor 311, a nylon resin wrapping isolation layer 312, a foamed polyethylene insulation layer 313, a polyethylene extrusion insulation layer 32, a steel wire reinforcing core 4, an ETFE resin wrapping anti-wear layer 5, a butyronitrile polyvinyl chloride inner sheath layer 6, a nylon wire anti-torque wrapping layer 8, a butyronitrile polyvinyl chloride outer sheath layer and an EVA wear-resistant layer 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in figure 1, the utility model discloses resistant scratch wear type reel cable of bending, including three power sinle silk 1 around 2 interval equipartitions of a Y shape silicon rubber filler core and constitute the cable core with 3 transposition of three control core jointly. The Y-shaped silicon rubber filling core 2 is provided with a longitudinal hole, a steel wire reinforcing core 4 is sleeved in the longitudinal hole, the steel wire reinforcing core 4 is formed by twisting a plurality of aramid fiber bundles and galvanized steel wires, specifically, the aramid fiber bundles are formed by twisting a plurality of aramid fibers and are bonded with thermoplastic polypropylene resin into a whole through hot melting, further, the diameter of the galvanized steel wire is 0.05mm to 0.08mm, and the diameter of the galvanized steel wire is not more than 85% of the diameter of the aramid fiber bundles. And the longitudinal hole is filled with insulating lubricating silicone grease.

The power wire core 1 comprises a power conductor 11, an ethylene propylene diene monomer isolation layer 12 and an XLPE insulation layer 13, specifically, the power conductor 11 is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameters of 0.05mm to 0.08mm, and further, the twisting pitch of the tinned copper monofilaments is 10mm to 16 mm. The control sinle silk 3 includes that three or four insulation core 31 twist together and constitute the line core, the outside cladding of line core has crowded package insulating layer 32 of polyethylene, insulation core 31 includes inner conductor 311, nylon resin around package isolation layer 312 and foaming polyethylene insulating layer 313, and specific saying so, inner conductor 311 is that a plurality of tinned copper wires and a plurality of counterpoint type wholly aromatic copolyamide draw-out fibers twist together and form, the line diameter of tinned copper wire is 0.02mm to 0.04 mm.

The cable core outside cladding has ETFE resin in proper order around package antifriction layer 5, butyronitrile polyvinyl chloride inner sheath layer 6, the antitorque covering 7, butyronitrile polyvinyl chloride outer sheath layer 8 and EVA wearing layer 9 of nylon wire, and is further, butyronitrile polyvinyl chloride inner sheath layer 6 surface with butyronitrile polyvinyl chloride outer sheath layer 8 internal surface all is provided with the thermoplastic polyurethane adhesive linkage. In one embodiment, the ETFE resin lapping antifriction layer 5 is gap lapping and the pitch is 2 to 4 times the bandwidth. In one embodiment, the nylon yarn anti-twisting wrapping layer 7 is formed by weaving inner and outer double-layer nylon strands in a reverse spiral winding manner, and the diameter of the nylon strands is 0.15mm to 0.28 mm. The thickness of the EVA wear-resistant layer 9 is not less than 0.3 mm.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. Anti crooked resistant type reel cable of scraping, characterized by: the cable comprises three power wire cores (1), a Y-shaped silicon rubber filling core (2) is uniformly distributed at intervals and is stranded with three control wire cores (3) to form a cable core, a longitudinal hole is formed in the Y-shaped silicon rubber filling core (2), a steel wire reinforcing core (4) is sleeved in the longitudinal hole, the steel wire reinforcing core (4) is formed by stranding a plurality of aramid fiber bundles and galvanized steel wires, insulating lubricating silicon grease is filled in the longitudinal hole, the power wire cores (1) comprise a power conductor (11), an ethylene propylene diene rubber isolating layer (12) and an XLPE (cross linked polyethylene) insulating layer (13), the control wire cores (3) comprise three or four insulating wire cores (31) which are stranded together to form a wire core body, a polyethylene extruding and wrapping insulating layer (32) is coated outside the wire core body, each insulating wire core (31) comprises an inner conductor (311), a nylon resin insulating layer (312) and a foamed polyethylene insulating layer (313), the cable core is coated with an ETFE resin wrapping anti-abrasion layer (5), a butyronitrile polyvinyl chloride inner sheath layer (6), a nylon wire anti-torsion wrapping layer (7), a butyronitrile polyvinyl chloride outer sheath layer (8) and an EVA abrasion-resistant layer (9) in sequence.

2. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the diameter of the galvanized steel wire is 0.05mm to 0.08mm, and the diameter of the galvanized steel wire is not more than 85% of the diameter of the aramid fiber bundle.

3. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the aramid fiber bundles are formed by twisting a plurality of aramid fibers and bonding the aramid fibers and thermoplastic polypropylene resin into a whole in a hot melting way.

4. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the power conductor (11) is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.05mm to 0.08 mm.

5. The bend, scrape and abrasion resistant reel cable of claim 4, wherein: the twisted pitch of the tin-plated copper monofilament is 10mm to 16 mm.

6. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the inner conductor (311) is formed by jointly twisting a plurality of tinned copper wires and a plurality of para-type wholly aromatic copolyamide drawn fibers, and the wire diameter of each tinned copper wire is 0.02-0.04 mm.

7. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the nylon wire anti-torsion lapping layer (7) is of a structure that inner and outer double-layer nylon strands are spirally wound and woven in opposite directions, and the diameter of each nylon strand is 0.15mm to 0.28 mm.

8. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the outer surface of the butyronitrile polyvinyl chloride inner sheath layer (6) and the inner surface of the butyronitrile polyvinyl chloride outer sheath layer (8) are both provided with thermoplastic polyurethane bonding layers.

9. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the ETFE resin lapping anti-abrasion layer (5) is gap lapping and the lapping distance is 2-4 times of the bandwidth.

10. The bend, scrape and abrasion resistant reel cable of claim 1, wherein: the thickness of the EVA wear-resistant layer (9) is not less than 0.3 mm.

Images