CN207295323U

CN207295323U - It is a kind of（3+6）The superhigh intensity steel cord of structure

Info

Publication number: CN207295323U
Application number: CN201720082281.9U
Authority: CN
Inventors: 倪自飞; 姚海东; 朱银桂; 殷建创
Original assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Current assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Priority date: 2017-01-19
Filing date: 2017-01-19
Publication date: 2018-05-01
Anticipated expiration: 2027-01-19

Abstract

The utility model proposes one kind（3+6）The superhigh intensity steel cord of structure, the cored wire formed including internal layer in three cored wire steel wires of equilateral triangle arrangement, outer layer six roots of sensation steel wire are compiled around three cored wire steel wires of internal layer and are twisted type, and Formation cross-section is circular steel cord, the twist direction of the cored wire is twisted with the fingers for S, and the twist direction of cover wire is twisted with the fingers for Z；Cored wire gauge of wire is less than cover wire diameter, and cored wire compiles the lay pitch twisted with the fingers and is less than the lay pitch that cover wire compiles sth. made by twisting.The steel cord of the utility model uses extra-high strength wire, and steel wire diameter is small, and bend loading, pliability and the fatigue performance of cord also accordingly improve；This structure can reduce the thickness of cord in the case where ensureing carcass intensity, and manufactured tire weight is light, and heat is low, and oil consumption is few, save resources of production and production cost, adapt to green, the growth requirement of high-performance tire.

Description

A kind of superhigh intensity steel cord of (3+6) structure

Technical field

It the utility model is related to steel cord for tire technical field, more particularly to high, light-weight one kind (3+6) knot of intensity The superhigh intensity steel cord of structure.

Background technology

In modern society's life, people are increasing to the demand of automobile industry, this has just driven the rapid of tire industry Development, also proposes increasingly higher demands to tire enterprise, continually develops high-performance, the tire product of low cost is general trend of events institute Become.As steel cord for tire, not only tire can be made to possess the performances such as excellent impact resistance, puncture-resistant, in addition also examined Consider the cost of steel cord production cost in itself and tire；The weight of tire is also reduced as far as possible, reduce the fuel consumption of vehicle, To meet requirement of the current social to green product.Therefore, steel cord is carried out using the steel wire of the thinner superhigh intensity of diameter Production is just into the trend of steel cord development.

Utility model content

In view of the demand in existing use, the purpose of this utility model is to provide a kind of unimach of (3+6) structure Cord, can be conducive to the lightweight of tire, and have superior intensity and endurance, impact resistance.

To reach the purpose of this utility model, a kind of superhigh intensity steel cord of (3+6) structure of the utility model, bag The cored wire that internal layer is formed in three cored wire steel wires 10 of equilateral triangle arrangement is included, outer layer six roots of sensation steel wire 20 surrounds three cores of internal layer Line steel wire compiles the type that is twisted, and Formation cross-section is circular steel cord, and the twist direction of the cored wire is twisted with the fingers for S, and the twist direction of cover wire is Z Twist with the fingers；Cored wire gauge of wire is less than cover wire diameter, and cored wire compiles the lay pitch twisted with the fingers and is less than the lay pitch that cover wire compiles sth. made by twisting；It is described Cored wire steel wire and cover wire be extra-high strength wire.

Preferably, the cored wire steel wire diameter is 0.175mm, a diameter of 0.32mm of cover wire.

Further preferably, it is 9.5mm that the cored wire, which compiles the lay pitch twisted with the fingers, and it is 15.5mm that cover wire, which compiles the lay pitch twisted with the fingers,.

The beneficial effects of the utility model are that the steel cord uses extra-high strength wire, and steel wire diameter is small, cord Bend loading, pliability and fatigue performance also accordingly improve；This structure can subtract in the case where ensureing carcass intensity The thickness of few cord, manufactured tire weight is light, and heat is low, and oil consumption is few, saving resources of production and production cost, adaptation green, The growth requirement of high-performance tire.

Brief description of the drawings

By detailed description below in conjunction with the accompanying drawings, the utility model is foregoing to incite somebody to action with other objects, features and advantages Become apparent.Wherein：

Fig. 1 show the structure diagram of the superhigh intensity steel cord of one kind (3+6) structure of the utility model；

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

Embodiment

With reference to shown in Fig. 1 and Fig. 2, the superhigh intensity steel cord of one kind (3+6) structure of the utility model, including internal layer is in The cored wire that three cored wire steel wires 10 of equilateral triangle arrangement are formed, outer layer six roots of sensation steel wire 20 are compiled around three cored wire steel wires of internal layer Type is twisted, Formation cross-section is circular steel cord, and the twist direction of the cored wire is twisted with the fingers for S, and the twist direction of cover wire is twisted with the fingers for Z；Cored wire steel The diameter of silk is less than cover wire diameter, and cored wire compiles the lay pitch twisted with the fingers and is less than the lay pitch that cover wire volume is twisted with the fingers；The cored wire steel Silk and cover wire are extra-high strength wire.In a preferred embodiment, the cored wire steel wire diameter is 0.175mm, The a diameter of 0.32mm of cover wire.

When steel cord carries out twisting, due to the use of the unimach silk cord of small diameter, therefore, during twisting The lay pitch, the twist direction of different layers steel cord etc. is required for being redesigned accordingly.The lay pitch is big, and productivity is high, but fatigue durability It can decline, this is because when the lay pitch is bigger, the torsional deflection degree of cord monofilament in twisting is with regard to smaller, its elastic restoring force It is larger, it if this elastic restoring force cannot eliminate, can decline the fatigue performance of cord, service life shortens；The lay pitch Small, the fatigue performance of steel cord improves, and elongation is high, but the spinning loss of intensity is big, and productivity also reduces.So according to not It is the importance in steel cord R＆D process to carry out rational lay pitch design with the all-steel cord of intensity and different steel wire diameters Can parameter.In addition, the cross sectional shape of arrangement, that is, internal layer cord and outer layer cord of the steel cord in twisting is for its strike-through Performance has important influence, and important Consideration.In the preferred embodiment of the application, the core It is 9.5mm that line, which compiles the lay pitch twisted with the fingers, and it is 15.5mm that cover wire, which compiles the lay pitch twisted with the fingers,.

The steel cord of the utility model is used according to newest《Radial steel cord》National standard (GB/T_ Extra-high strength wire as defined in 11181-2016), the intensity of steel wire than the regular tenacity of same diameter improve 20% or so；Steel wire Diameter is small, and bend loading, pliability and the fatigue performance of cord also accordingly improve.Contacted between steel wire for line, contact area Greatly, contact is small, can effectively reduce the abrasion between steel wire.This structure can in the case where ensureing carcass intensity, The thickness of cord is reduced, manufactured tire weight is light, and heat is low, and oil consumption is few, saves resources of production and production cost, adapts to green The growth requirement of color, high-performance tire.

The utility model is not limited to the embodiment described, and those skilled in the art is not departing from the utility model Spirit is in the open scope, still be may make some modifications or changes, therefore the rights protection scope of the utility model is with claims Subject to the scope of restriction.

Claims

1. a kind of superhigh intensity steel cord of (3+6) structure, it is characterised in that the steel cord includes internal layer and arranged in equilateral triangle The cored wire that three cored wire steel wires of row are formed, outer layer six roots of sensation steel wire compile the type that is twisted around three cored wire steel wires of internal layer, are formed and cut Face is circular steel cord, and the twist direction of the cored wire is twisted with the fingers for S, and the twist direction of cover wire is twisted with the fingers for Z；Cored wire gauge of wire is less than outer Layer steel wire diameter, and cored wire compiles the lay pitch twisted with the fingers and is less than the lay pitch that cover wire volume is twisted with the fingers；The cored wire steel wire and cover wire are equal For the steel wire of superhigh intensity.

2. the superhigh intensity steel cord of one kind (3+6) structure as claimed in claim 1, it is characterised in that the cored wire steel The a diameter of 0.175mm, a diameter of 0.32mm of cover wire of silk.

3. the superhigh intensity steel cord of one kind (3+6) structure as claimed in claim 1, it is characterised in that the cored wire is compiled The lay pitch of sth. made by twisting is 9.5mm, and it is 15.5mm that cover wire, which compiles the lay pitch twisted with the fingers,.