CN201722554U

CN201722554U - Multilayer strand composite steel wire rope

Info

Publication number: CN201722554U
Application number: CN2010202310404U
Authority: CN
Inventors: 左士龙; 吴海峰; 华正
Original assignee: Jiangsu Safety Wire Rope Co Ltd
Priority date: 2010-06-21
Filing date: 2010-06-21
Publication date: 2011-01-26
Anticipated expiration: 2020-06-21

Abstract

A multilayer strand composite steel wire rope includes a center strand, an inner layer strand, a filling strand and an outer layer strand, wherein the center strand is one strand of steel wire rope, the inner layer adopts four strands of steel wire ropes evenly distributed around the center strand, the filling strand comprises four strands of steel wire ropes filled in external clearances between adjacent steel wire ropes of the inner layer strand, the outer strand comprises eight strands of steel wire ropes evenly distributed around the inner layer strand, and the surface contact exists between every two strands. The multilayer strand composite steel wire rope has excellent performance including wear resistance, extrusion resistance and impact load resistance.

Description

A kind of multilayer thigh composite steel wire rope

Technical field

The utility model relates to a kind of steel wire rope and preparation method thereof, exactly relates to a kind of multilayer thigh composite steel wire rope.

Background technology

Along with the crane industry competition is growing more intense, crane requirement specification is little, bearing capacity is big.Telescopic arm will carry the weight of telescopic arm and the weight of carrier with steel wire rope, and this just requires the telescopic arm breaking force of rope high especially.At present, telescopic crane boom is used 6 * 29Fi+IWR, 35W * 7 structure class steel wire ropes more, and these two kinds of steel wire ropes belong to linear contact lay wire rope, also are round-strand ropes.National standard requires the rupture pull force coefficient of steel wire rope to have only 0.36, my company has designed a kind of compaction-strand steel wire rope of producing with the die drawing method voluntarily at its present situation, activity coefficient reaches 94.62%, the rupture pull force coefficient reaches 0.44, ABRASION RESISTANCE and anti-extrusion type also are improved to some extent, but because the handling weight of crane is increasing at present, require telescopic arm to that is to say that with the bearing capacity of steel wire rope minimum breaking force is increasing, some large-scale crane facility is being used the import compaction-strand steel wire rope always, the requirement that the intensity of existing steel wire rope does not reach crane.

The utility model content

The utility model is intended to overcome above the deficiencies in the prior art, provides a kind of ABRASION RESISTANCE, crush resistance and resistance to shock loads performance all good multilayer thigh composite steel wire ropes.

The utility model technical solution problem adopts following technical scheme:

A kind of multilayer thigh composite steel wire rope, comprise central strand, internal layer thigh, fill thigh and outer layer strand, described central strand is 1 strand steel wire rope, the internal layer thigh is to be evenly distributed on central strand 4 strand steel wire ropes on every side, fill thigh for being filled in 4 strand steel wire ropes in the outer gap between the internal layer thigh adjacent wires rope, outer layer strand is 8 strand steel wire ropes that are evenly distributed on around the internal layer thigh, strand with thigh between contact for face.

Further, the center of described central strand and filling thigh is respectively 1 core wire, is evenly distributed with the skin of being made up of 6 steel wires around the described core wire, and the cross section of described core wire is similar to regular hexagon, the cross section approximate trapezoid of described cover wire is the face contact between the steel wire.

Further, described internal layer thigh adopts Seale, and the center is 1 core wire, the internal layer that the outside of described core wire is made up of 9 equally distributed steel wires, the skin of being made up of 9 equally distributed steel wires in the internal layer outside is the face contact between the steel wire.

Further, described outer layer strand adopts western Shandong-Wa Lin to gulp down composite construction, the center is 1 core wire, the internal layer that the outside of described core wire is made up of 5 equally distributed steel wires, the middle level that the internal layer outside is made up of 10 equally distributed steel wires, the skin that the outside, described middle level is made up of 10 steel wires, 5 on 10 steel wires in described middle level are thick wire, 5 be finer wire and thickness steel wire alternately, be the face contact between the steel wire.

The beneficial effects of the utility model are as follows:

Because the structure of rope strand is face contact shape through the mould extruding, improved steel wire rope metal effective area, the steel wire rope of contrast same size, intensity, this structure breaking force of rope has improved 36%, the steel wire rope of the same structure of the company standard that contrast enterprise designs voluntarily, specification, intensity, the breaking force of rope of this structure has improved 11%, if steel wire uses the steel wire of 2160MPa strength grade, these series of products can reach enlightening handkerchief requirements of Wire Rope advanced in the world on the technical indicator of rupture pull force.In use and the contact-making surface of elevator, pulley big, ABRASION RESISTANCE improves.Simultaneously, the steel wire rope of this kind structure is twisted with the fingers a central strand twisting by three layers of thigh bag and is formed, and its resistance rotation performance is good.In use the steel wire rope of this kind structure has stronger ABRASION RESISTANCE, crush resistance and resistance to shock loads performance, and can improve more than 20% service life on the basis of round-strand rope.

Description of drawings

Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the cross section structure schematic diagram of the utility model multilayer thigh composite steel wire rope;

Fig. 2 is the central strand cross section structure schematic diagram of the utility model multilayer thigh composite steel wire rope;

Fig. 3 is the internal layer thigh cross section structure schematic diagram that the utility model plays multilayer thigh composite steel wire rope;

Fig. 4 is the filling thigh cross section structure schematic diagram of the utility model multilayer thigh composite steel wire rope;

Fig. 5 is the outer layer strand cross section structure schematic diagram of the utility model multilayer thigh composite steel wire rope.

Be labeled as among the figure: 1-central strand, 2-internal layer thigh, 3-fill thigh, 4-outer layer strand.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in qualification the utility model.

Embodiment 1

Referring to Fig. 1, a kind of multilayer thigh composite steel wire rope, comprise central strand 1, internal layer thigh 2, fill thigh 3 and outer layer strand 4, central strand 1 is 1 strand steel wire rope, and internal layer thigh 2 is filled thigh 3 for being filled in 4 strand steel wire ropes in the outer gap between the internal layer thigh 2 adjacent wires ropes for being evenly distributed on central strand 14 strand steel wire ropes on every side, outer layer strand 4 is for being evenly distributed on internal layer thigh 28 strand steel wire ropes on every side, strand with the thigh between for face contacts, the strength grade of each steel wire is 2160MPa, compacting activity coefficient 96.47%.

Referring to Fig. 2, Fig. 4, the center of central strand 1 and filling thigh 3 is respectively 1 core wire, be evenly distributed with the skin of forming by 6 steel wires around the core wire, the cross section of core wire is similar to regular hexagon, the cross section approximate trapezoid of cover wire, be the face contact between the steel wire, the strength grade of each steel wire is 2160MPa, compacting activity coefficient 96.47%.

Referring to Fig. 3, internal layer thigh 1 adopts Seale, the center is 1 core wire, the internal layer that the outside of core wire is made up of 9 equally distributed steel wires, the skin of forming by 9 equally distributed steel wires in the internal layer outside, be the face contact between the steel wire, the strength grade of each steel wire is 2160MPa, compacting activity coefficient 96.47%.

Referring to Fig. 5, outer layer strand 4 adopts western Shandong-Wa Lin to gulp down composite construction, the center is 1 steel wire, the internal layer that the outside of described core wire is made up of 5 equally distributed steel wires, the middle level that the internal layer outside is made up of 10 equally distributed steel wires, the skin that the outside, described middle level is made up of 10 steel wires, 5 on 10 steel wires in described middle level are thick wire, 5 be finer wire and thickness steel wire alternately, be the face contact between the steel wire, the strength grade of each steel wire is 2160MPa, compacting activity coefficient 96.47%.

It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. multilayer thigh composite steel wire rope, it is characterized in that: comprise central strand, internal layer thigh, fill thigh and outer layer strand, described central strand is 1 strand steel wire rope, the internal layer thigh is to be evenly distributed on central strand 4 strand steel wire ropes on every side, fill thigh for being filled in 4 strand steel wire ropes in the outer gap between the internal layer thigh adjacent wires rope, outer layer strand is 8 strand steel wire ropes that are evenly distributed on around the internal layer thigh, strand with thigh between contact for face.

2. multilayer thigh composite steel wire rope according to claim 1, it is characterized in that: the center of described central strand and filling thigh is 1 core wire, be evenly distributed with the skin of forming by 6 steel wires around the described core wire, the cross section of described core wire is similar to regular hexagon, the cross section approximate trapezoid of cover wire is the face contact between the steel wire.

3. multilayer thigh composite steel wire rope according to claim 1, it is characterized in that: described internal layer thigh adopts Seale, the center is 1 core wire, the internal layer that the outside of described core wire is made up of 9 equally distributed steel wires, the skin of being made up of 9 equally distributed steel wires in the internal layer outside is the face contact between the steel wire.

4. multilayer thigh composite steel wire rope according to claim 1, it is characterized in that: described outer layer strand adopts western Shandong-Wa Lin to gulp down composite construction, the center is 1 core wire, the internal layer that the outside of described core wire is made up of 5 equally distributed steel wires, the middle level that the internal layer outside is made up of 10 equally distributed steel wires, the skin that the outside, described middle level is made up of 10 steel wires, 5 on 10 steel wires in described middle level are thick wire, 5 be finer wire and thickness steel wire alternately, be the face contact between the steel wire.