CN206941286U - A kind of impact resisting steel cord of (3 × 5) structure - Google Patents

Abstract

The utility model proposes a kind of impact resisting steel cord of (3 × 5) structure, and it is compiled sth. made by twisting by three strands and formed, and every strand is compiled sth. made by twisting by five steel strands and formed, and the twist direction of steel wire of internal layer stock is twisted with the fingers in S, and the twist direction of outer layer strand is twisted with the fingers in Z；Five steel strands arrange in regular pentagon, and the section that three strands compile the steel cord being twisted is equilateral triangle；All gauges of wire are equal.The impact resisting steel cord of (3 × 5 × 0.38HI) structure of the present utility model, all strands use same diameter steel wire, without outer winding silk, the steel cord has the advantages such as high impact-resistant, low deadweight, high fatigue property, can save the energy and the production cost of client.

Description

A kind of impact resisting steel cord of (3 × 5) structure

Technical field

Steel cord for tire technical field is the utility model is related to, more particularly to a kind of impact resisting steel curtain of (3 × 5) structure Line.

Background technology

The fast development of modern tire manufacturing technology, tire industry is promoted constantly to produce more energy efficient, safer, cost Tire lower, the life-span is longer.As the radial framework material of great competitiveness, steel cord is constantly adapted to and led This development trend.The development of carcass in recent years and belt cord is taken a broad view of, it, which has in common that, constantly uses higher intensity High-grade material.Because effect is different, for belt cord, corrosion is avoided to pass weight by improving strike-through performance Will；For protective layer cord, after covering glue there is the shock resistance cord of high Breaking elongation can then meet to absorb impact well The requirement of energy.Therefore, for the framework material steel cord of radial, excellent shock resistance is made it have especially It is important；In addition, the problem of also taking into account the lighting reduction fuel consumption of tire.

Utility model content

The requirement of excellent shock resistance, the utility model are needed to have for steel cord for current radial tyre Purpose be to provide a kind of impact resisting steel cord of (3 × 5) structure, it has excellent shock resistance and can make tire Weight reduction.

To reach the purpose of this utility model, the impact resisting steel cord of one kind (3 × 5) structure of the present utility model is by three Strand is compiled sth. made by twisting and formed, and every strand is compiled sth. made by twisting by five steel strands and formed, and the twist direction of steel wire of internal layer stock is twisted with the fingers in S, the sth. made by twisting of outer layer strand Twisted with the fingers in Z；Five steel strands arrange in regular pentagon, and the section that three strands compile the steel cord being twisted is equilateral triangle；It is all Gauge of wire is 0.38mm；It is 14.0mm that the steel wire of internal layer stock, which compiles the lay pitch twisted with the fingers, and outer layer strand compiles the sth. made by twisting for being twisted steel cord Away from for 26.0mm.

The beneficial effects of the utility model are the impact resisting steel cords of (3 × 5) structure, and all strands are using identical The extra-high strength wire of diameter, without outer winding silk, the steel cord has the advantages such as high impact-resistant, low deadweight, high fatigue property, The energy and the production cost of client can be saved.

Brief description of the drawings

By detailed description below in conjunction with the accompanying drawings, the foregoing and other objects, features and advantages of the utility model will Become apparent.Wherein：

Fig. 1 is a kind of structural representation of the impact resisting steel cord of (3 × 5) structure of the present utility model；

Fig. 2 is the lay pitch schematic diagram of Fig. 1 steel cord.

Embodiment

The structure of the impact resisting steel cord of (3 × 5) structure of the embodiment of the present utility model shown in reference picture 1, Fig. 2 Schematic diagram, the steel cord are compiled sth. made by twisting by three strands and formed, and every strand is compiled sth. made by twisting by the steel strand of five superhigh intensitys and formed, interior The twist direction of layer steel strand is twisted with the fingers in S, and the twist direction of outer layer strand is twisted with the fingers in Z；Five steel strands are arranged in regular pentagon, and three strands, which are compiled, to be twisted with the fingers Into the section of steel cord be equilateral triangle；All gauges of wire are equal.In a preferred embodiment, all steel A diameter of 0.38mm of silk.Cord of the present utility model, without outer winding silk, for body cord, without the tight type for twining silk outside Cord has higher anti-fatigue performance due to twining the abrasion of silk in the absence of internal layer and outside.

The utility model is used according to newest《Radial steel cord》National standard (GB/T_11181-2016) Defined extra-high strength wire, the intensity of steel wire than the regular tenacity of same diameter improve 20% or so.

When steel cord carries out twisting, as a result of the higher unimach silk cord of intensity, therefore, during twisting The lay pitch, the twist direction of different layers steel cord etc. is required for being designed accordingly.The lay pitch is big, and productivity ratio is high, but under fatigue performance Drop, this be due to when the lay pitch is bigger, the torsional deflection degree of cord monofilament in twisting with regard to smaller, its elastic restoring force compared with Greatly, it if this elastic restoring force cannot eliminate, can decline the fatigue performance of cord, service life shortens；The lay pitch is small, The fatigue performance of steel cord improves, and elongation is high, but the spinning loss of intensity is big, and productivity ratio also reduces.So according to difference It is the important performance in steel cord R＆D process that the all-steel cord of intensity and different steel wire diameters, which carry out rational lay pitch design, Parameter.Considered based on above-mentioned, in a preferred embodiment, it is 14.0mm that the steel wire of internal layer stock, which compiles the lay pitch twisted with the fingers, outer layer The lay pitch (P) that strand volume is twisted steel cord is 26.0mm

The impact resisting steel cord of (3 × 5) structure of the present utility model and the steel cord of existing (5 × 0.38HI) structure Performance parameter contrast is as follows：

As can be seen from the table, compared with 5 × 0.38HI, steel cord minimum Fracture Force of the present utility model has highly significant Improve, Breaking elongation improves 40%.

The impact resisting steel cord of (3 × 5) structure of the present utility model, all strands use same diameter steel wire, and nothing twines outside Wrapping wire, the steel cord have the advantages such as high impact-resistant, low deadweight, high fatigue property, can save the energy and the life of client Produce cost.

The utility model is not limited to described embodiment, those skilled in the art do not depart from it is of the present utility model In the i.e. open scope of spirit, it can still make some amendments or change, therefore rights protection scope of the present utility model is with claims The scope of restriction is defined.

Claims (1)

1. a kind of impact resisting steel cord of (3 × 5) structure, it is characterised in that the steel cord is compiled sth. made by twisting by three strands and formed, often Root strand is compiled sth. made by twisting by the steel strand of five superhigh intensitys and formed, and the twist direction of steel wire of internal layer stock is twisted with the fingers in S, and the twist direction of outer layer strand is in Z Twist with the fingers；Five steel strands arrange in regular pentagon, and the section that three strands compile the steel cord being twisted is equilateral triangle；All steel wires A diameter of 0.38mm；And it is 14.0mm that the steel wire of internal layer stock, which compiles the lay pitch twisted with the fingers, the lay pitch that outer layer strand volume is twisted steel cord is 26.0mm。