Tensile and corrosion-resistant steel wire rope core

Abstract

According to the tensile and corrosion-resistant steel wire rope core provided by the utility model, the main rope core wire formed by twisting the aramid fiber yarns is adopted, and the plurality of composite fiber core wires formed by weaving the glass fiber yarns and the ultra-high molecular weight polyethylene fiber yarns on the outer side of the steel core in a staggered manner are spirally wrapped and twisted on the outer side of the main rope core wire, so that the tensile strength of the steel wire rope core is remarkably improved; therefore, the cable can bear larger tensile force and is not easy to break. The glass fibers have good corrosion resistance, and the ultra-high molecular weight polyethylene fibers have oil storage characteristics, so that the composite fibers can isolate moisture and corrosive substances in air by dip-coating and storing the lubricating grease on the composite fibers, and the composite fibers are further protected from corrosion. Meanwhile, the corrosion-resistant layer is arranged on the outer side of the outer-layer core wire, and the water-blocking yarn is arranged between the outer-layer core wire and the corrosion-resistant layer, so that the corrosion resistance of the rope core is improved, moisture, oxygen and other corrosive substances are effectively prevented from invading into the rope core, and the stability of the tensile strength of the rope core is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to water steel wire rope core technical field especially is related to a kind of tensile corrosion-resistant steel wire rope core. BACKGROUND

[0002] With the progress of science and technology and the development of industry, the application scene of steel wire rope is more and more extensive, plays a key role in hoisting, traction and other operations, and the overall carrying capacity of steel wire rope directly relates to the life safety of operating personnel when in use.

[0003] As the framework of steel wire rope, the core plays a supporting and stabilizing role in the steel wire rope, and can maintain the shape and stability of the steel wire rope. Therefore, the overall carrying capacity of the core is one of the important determinants affecting the safety of steel wire rope use.

[0004] However, due to the need to bear a large tensile force when the steel wire rope is in use, and the environmental factors of the steel wire rope application are variable, the core of the steel wire rope is easily corroded by external substances, causing the steel wire rope core to bear too much tension or break due to corrosion. Therefore, it is necessary to provide a tensile corrosion-resistant steel wire rope core. SUMMARY

[0005] In view of the technical problems of the steel wire rope core in the prior art that it bears a large tension and is easily corroded, the utility model provides a tensile corrosion-resistant steel wire rope core.

[0006] A tensile corrosion-resistant steel wire rope core, comprising a main core wire and an outer layer core wire spirally twisted outside the main core wire; the main core wire is twisted from aramid fiber wires; the outer layer core wire comprises a plurality of composite fiber core wires spirally twisted outside the main core wire and a plurality of outer layer steel wires spirally twisted outside the composite fiber core wires; the composite fiber core wire comprises a steel core and a plurality of composite fiber wires spirally twisted outside the steel core; the composite fiber wires are interlaced from glass fiber wires and ultrahigh molecular polyethylene fiber wires; the composite fiber wires are all immersed with lubricating grease; and a steel wire mesh layer is provided between the composite fiber core wire and the outer layer steel wire, and the steel wire mesh layer is wrapped outside the composite fiber core wire; an anti-corrosion layer is provided outside the outer layer core wire, and water-blocking yarn is filled between the anti-corrosion layer and the outer layer core wire.

[0007] Further, a plurality of filler wires are provided in the gap between the water-blocking yarn and the outer layer core wire, and each filler wire is tangent to the outer wall of the adjacent outer layer core wire.

[0008] Further, the steel core, the outer layer steel wire and the steel wire mesh layer are all provided with a manganese-based phosphating coating, a galvanizing coating or a zinc-nickel alloy coating.

[0009] Further, the corrosion-resistant layer is an outer protective layer of ultra-high molecular weight polyethylene.

[0010] Further, the twisting direction of the composite fiber core filaments around the main rope core filaments is opposite to the twisting direction of the outer layer steel filaments.

[0011] Further, the diameter of the main rope core filaments is 2-3 times the diameter of the composite fiber core filaments.

[0012] Further, the thickness of the corrosion-resistant layer is 1.5-3 mm; and the thickness of the steel wire mesh layer is 1-2 mm.

[0013] Further, the strength of the ultra-high molecular weight polyethylene fiber is 30-40 cN / dtex.

[0014] Further, the composite fiber core filaments are provided in 9 groups; and the outer layer steel filaments are provided in 12 groups.

[0015] The steel wire rope core provided by the utility model has the advantages that the main rope core filaments are twisted from aramid fiber filaments, and a plurality of composite fiber core filaments formed by interlaced weaving of glass fiber filaments and ultra-high molecular polyethylene fiber filaments on the outer side of the steel core are spirally wrapped outside the main rope core filaments, so that the tensile strength of the steel wire rope core is remarkably improved, and the steel wire rope core can bear greater tension without being easily broken. The glass fiber has good corrosion resistance, and the ultra-high molecular polyethylene fiber filaments have oil storage properties, so that the composite fiber filaments can be immersed in lubricating oil to isolate moisture and corrosive substances in the air, thereby protecting the composite fiber filaments from corrosion. Meanwhile, the corrosion-resistant layer is arranged outside the outer layer core filaments, and the water-blocking yarn is arranged between the outer layer core filaments and the corrosion-resistant layer, so that the corrosion resistance of the core is improved, moisture, oxygen and other corrosive substances are effectively blocked from entering the inside of the core, and the stability of the tensile strength of the core is ensured. In addition, the steel wire mesh layer is arranged between the composite fiber core filaments and the outer layer steel filaments, so that the core can be fastened to the internal filament structure to prevent the filament from being loose, and the tensile strength of the core is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of tensile corrosion-resistant steel wire rope core structure schematic view;

[0017] Figure 2 The utility model provides a kind of composite fiber core filament structure schematic view.

[0018] IDENTIFICATION OF DRAWINGS

[0019] 1, main rope core wire; 2, outer layer core wire; 3, composite fiber core wire; 31, steel core; 32, composite fiber wire; 4, outer layer steel wire; 5, steel wire mesh layer; 6, corrosion-resistant layer; 7, water-blocking yarn; 8, filling steel wire. DETAILED DESCRIPTION

[0020] To further illustrate the utility model, the following description is made in conjunction with the drawings. It is particularly pointed out that the embodiments described below are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Reference Figure 1 As shown in the figure, a tensile corrosion-resistant steel wire rope core comprises a main rope core wire 1 and an outer layer core wire 2 spirally twisted outside the main rope core wire 1.

[0022] Specifically, referring to the figure and Figure 2 As shown in the figure, the main rope core wire 1 is twisted from aramid fiber wire. Aramid fiber wire has the characteristics of high strength, high modulus and low density. The main rope core wire 1 twisted from aramid fiber wire can significantly improve the tensile strength of the steel wire rope core, so that it can withstand greater tension without being easily broken, and improve the carrying capacity of the steel wire rope.

[0023] The outer layer core wire 2 comprises a plurality of composite fiber core wires 3 spirally twisted outside the main rope core wire 1 and a plurality of outer layer steel wires 4 spirally twisted outside the composite fiber core wires 3. In this embodiment, the composite fiber core wires are provided in total 9 strands; and the outer layer steel wires 4 are provided in total 12. The diameter of the main rope core wire 1 is 2-3 times the diameter of the composite fiber core wire 3.

[0024] The composite fiber core wire 3 comprises a steel core 31 and a plurality of composite fiber wires 32 spirally twisted outside the steel core. The composite fiber wire 32 is interlaced from glass fiber wire and ultrahigh molecular polyethylene fiber wire. In this embodiment, the strength of the ultrahigh molecular polyethylene fiber wire is 30cN / dtex-40cN / dtex, so that the strength of the composite fiber wire made of ultrahigh molecular polyethylene fiber wire is sufficient.

[0025] The glass fiber wire has high strength and good corrosion resistance, while the ultrahigh molecular polyethylene fiber wire has extremely high strength and wear resistance. The composite fiber core wire obtained by interlacing the two kinds of fiber wires has excellent tensile strength and wear resistance, can improve the tensile strength of the core while also having a certain flexibility, and also has good corrosion resistance.

[0026] The composite fiber yarn 32 is evenly dip-coated with lubricating grease; the ultra-high molecular polyethylene fiber yarn has oil storage characteristics, can release grease to lubricate each core yarn to reduce inter-strand friction when the rope core is under pressure, and the dip-coating of the composite fiber yarn 32 with lubricating grease can make the composite fiber yarn be able to isolate moisture and corrosive substances in the air, thereby protecting the composite fiber yarn from corrosion.

[0027] The steel wire mesh layer 5 is arranged between the composite fiber core yarn 3 and the outer layer steel wire 4, and the steel wire mesh layer 4 is wrapped outside the composite fiber core yarn 3. In the embodiment, the thickness of the steel wire mesh layer 5 is 1-2 mm.

[0028] The steel wire mesh layer 5 is tightly wrapped outside the composite fiber core yarn 3, which can effectively fasten the internal core yarn structure together, prevent the relative movement or loosening of the core yarn during the stress process, and thus maintain the integrity and stability of the rope core. At the same time, the steel wire mesh layer 3 can further improve the tensile strength of the composite fiber core yarn 3.

[0029] The outer layer core yarn 2 is provided with a corrosion-resistant layer 6 outside, and the corrosion-resistant layer 6 is filled with water-blocking yarn 7 between the outer layer core yarn 2. In the embodiment, the corrosion-resistant layer 6 is an ultra-high molecular weight polyethylene outer protective layer, and the thickness of the corrosion-resistant layer 5 is 1.5-3 mm.

[0030] The corrosion-resistant performance of the corrosion-resistant layer 6 can make the rope core immune to corrosion by external moisture and corrosive substances, and significantly improve the corrosion resistance of the rope core; the water-blocking yarn 7 not only effectively blocks the penetration of moisture between the corrosion-resistant layer 6 and the outer layer core yarn 2, but also enhances the bonding force between the outer layer core yarn 2 and the corrosion-resistant layer 6.

[0031] Preferably, the rope core further comprises a plurality of filling steel wires 8, which are arranged in the gap between the water-blocking yarn 7 and the outer layer core yarn 2, and each filling steel wire 7 is tangent to the outer wall of the adjacent outer layer core yarn 2.

[0032] The filling steel wire 8 is arranged in the gap between the water-blocking yarn 7 and the outer layer core yarn 2, which effectively increases the density of the rope core, provides good support for the rope core, enhances the overall structural strength and stability of the rope core, and is conducive to improving the compression and tensile capacity of the rope core.

[0033] In the embodiment, the steel core 31, the outer layer steel wire 4, and the steel wire mesh layer 5 are all provided with a manganese-based phosphating coating, a galvanized coating, or a zinc-nickel alloy coating. The manganese-based phosphating coating, the galvanized coating, or the zinc-nickel alloy coating all have good corrosion resistance, can resist the erosion of various corrosive substances, can significantly improve the corrosion resistance of the steel core 31, the outer layer steel wire 4, and the steel wire mesh layer 5, and prolong the service life of the rope core.

[0034] The twist direction of the composite fiber core wire 3 around the main rope core wire 1 is opposite to the twist direction of the outer layer steel wire 4, which helps to balance the internal stress and tension distribution of the rope core and avoid the loose of each core wire of the rope core.

[0035] The utility model provides a kind of tensile corrosion-resistant steel wire rope core, by adopting aramid fiber silk twist into main rope core wire 1, by glass fiber silk and ultrahigh molecular polyethylene fiber silk interlaced weaving on the outside of steel core and form composite fiber core wire 3, significantly improve the tensile strength of steel wire rope core, so that it can withstand greater tension without easily breaking down. Meanwhile, by setting corrosion-resistant layer 6 outside outer layer core wire 2, and setting water-blocking yarn 7 between outer layer core wire 2 and corrosion-resistant layer 6, further improve the corrosion resistance of rope core, so that the tensile strength of rope core is high, and corrosion resistance is strong, and the carrying capacity of wire harness is improved, the stability of the carrying capacity of rope core is guaranteed.

[0036] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model, and the utility model is not limited to the specific implementation manner. Obviously, according to the content of the specification, other modifications and changes can be made. The embodiment selected and specifically described in the specification is to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model, and is not a limitation on the utility model, and any simple modification of the utility model belongs to the protection scope of the utility model.

Claims

1. A corrosion resistant, tensile steel wire rope core comprising a main core wire and an outer core wire helically laid around said main core wire; characterized in that, The main rope core wire is twisted by aramid fiber; the outer layer core wire comprises a plurality of composite fiber core wires spirally twisted outside the main rope core wire and a plurality of outer layer steel wires spirally twisted outside the composite fiber core wires; The composite fiber core wire comprises a steel core and a plurality of composite fiber wires spirally twisted outside the steel core; the composite fiber wire is interlaced by glass fiber and ultrahigh molecular polyethylene fiber; The composite fiber wire is coated with lubricating grease; the composite fiber core wire and the outer layer steel wire are provided with a steel wire mesh layer, and the steel wire mesh layer is wrapped outside the composite fiber core wire; The outer layer core wire is provided with a corrosion-resistant layer, and the corrosion-resistant layer is filled with water-blocking yarn between the outer layer core wire.

2. A corrosion resistant tensile steel wire rope core according to claim 1, characterized in that, A plurality of filling steel wires are arranged in the gap between the water-blocking yarn and the outer layer core wire, and each filling steel wire is tangent to the outer wall of the adjacent outer layer core wire.

3. A corrosion resistant tensile steel wire rope core as claimed in claim 1, characterized in that, The steel core, the outer layer steel wire and the steel wire mesh layer are provided with a manganese phosphating coating, a zinc plating coating or a zinc-nickel alloy coating.

4. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The corrosion-resistant layer is an ultrahigh molecular weight polyethylene protective layer.

5. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The twisting direction of the composite fiber core wire around the main rope core wire is opposite to that of the outer layer steel wire.

6. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The diameter of the main rope core wire is 2-3 times the diameter of the composite fiber core wire.

7. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The thickness of the corrosion-resistant layer is 1.5-3mm; the thickness of the steel wire mesh layer is 1-2mm.

8. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The strength of the ultrahigh molecular weight polyethylene fiber is 30cN / dtex-40cN / dtex.

9. A corrosion resistant tensile steel wire rope core as defined in claim 1, characterized in that, The composite fiber core wire is provided with 9 strands; the outer layer steel wire is provided with 12 steel wires.

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