CN205368871U - Engineering child is with seven strands of steel cords - Google Patents
Engineering child is with seven strands of steel cords Download PDFInfo
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- CN205368871U CN205368871U CN201521098583.2U CN201521098583U CN205368871U CN 205368871 U CN205368871 U CN 205368871U CN 201521098583 U CN201521098583 U CN 201521098583U CN 205368871 U CN205368871 U CN 205368871U
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- strands
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- sth
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
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- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
The utility model discloses an engineering child is with seven strands of steel cords compiles the sth. Made by twisting by the steel wire and forms, including heart yearn thigh and outer strand, it compiles the sth. Made by twisting back by seven strands of steel wire thighs plus a winding steel wire forms, and the sth. Made by twisting of winding steel wire is to twisting with the fingers for S, seven strands of steel wire thighs are compiled the formation of sth. Made by twisting back and are evenly arranged in heart yearn thigh structure on every side by six strands of outer strands, and it is twisted with the fingers to being circular for Z sth. Made by twisting, cross -section, heart yearn thigh and outer strand all compile to twist with the fingers by five steel wires and form, it is twisted with the fingers to all be the S sth. Made by twisting. High, the endurable thorn of this steel cord strength, wear resistance are good, have reduced the proportion of steel cord in the tire in the disrumpent feelings power that improves the steel cord.
Description
Technical field
This utility model relates to seven strands of all-steel cords of engineering machinery radial.
Background technology
The intensity that the demand driving of lighter amount tire steel steel for tyre cord silk by market improves constantly, its intensity is also developed to superhigh intensity and very high strength direction by regular tenacity, high intensity, by adopting the steel cord of higher intensity, can ensure that tire is when some strength, the consumption of steel cord in cord can not only be reduced, it also is able to reduce the consumption of sizing material simultaneously, achieve the deadweight reducing tire, thus reducing the resistance to rolling of tire, reach to save oil consumption, and reduce the purpose of CO2 emission.The strength grade of steel wire in steel cord, according to the requirement in ISO17832:2009, the intensity of individual wire can be defined (volume unit: MPa by below equation；Steel wire diameter unit: mm).
Regular tenacity: tensile strength of wire value=3275-2000* steel wire diameter value；
High intensity: tensile strength of wire value=3650-2000* steel wire diameter value；
Superhigh intensity: tensile strength of wire value=4000-2000* steel wire diameter value；
Extra High Strength: tensile strength of wire value=4350-2000* steel wire diameter value；
In recent years, have benefited from rapid growth and the countries in the world increase day by day to mineral resources demands such as coal, copper, ferrum of China's economic, Mining At Home And Abroad industry obtains tremendous development, pull the extractive industry demand to mining machinery and mass transit vehicle, especially the quarry tipper giant tire market demand is increased sharply, and the increase of off-the-road tyre demand has driven downstream related industry.
With truck and passenger vehicle tyre ratio, off-the-road tyre load and the condition of use are significantly different, therefore engineering machinery radial all-steel cord there is also bigger difference, and U.S. US8336284 discloses the steel cord of 3*7 and 7*7 structure, and US7775247 discloses the steel cord of 2*7 structure.For all-steel cord manufacture theory, engineering machinery radial all-steel cord relates to the change that theory needs some new, embodies and is in that all-steel cord requirement of strength aspect.Current solution is usually and many conventional steel silk cords is twisted together, and forms the engineering machinery radial all-steel cord that specification is bigger.The Fracture Force of tradition carcass all-steel cord is generally about 2750N, has been able to fully meet instructions for use.And engineering machinery radial is owing to load is big, use condition is harsh, be frequently subject to the reasons such as road surface sharppointed article puncture, the requirement of strength of all-steel cord is significantly larger than ordinary steel wire cord.
Utility model content
The purpose of this utility model is to provide the bending stiffness of a kind of reinforcing cord, improve cord resilience force in cotton tyre cord calendering formation process, improve the anti-fatigue performance of cord, it is easy to strengthen the lay pitch of cord, improve seven strands of steel cords of engineering tire of cord and the bonding force of rubber, this steel cord strength height, puncture-resistant, anti-wear performance are good, reduce steel cord proportion in tire while improving the Fracture Force of steel cord.
This utility model is achieved by the following technical solution:
Engineering tire, with seven strands of steel cords, is compiled sth. made by twisting by steel wire and is formed, and including heart yearn stock and outer layer strand, it is compiled an additional winding steel wire after twisting with the fingers and forms by seven strands of steel strands, and the sth. made by twisting of winding steel wire is twisted with the fingers to for S；Seven strands of steel strands are compiled to be formed after twisting with the fingers and are evenly spaced in the structure around heart yearn stock by six strands of outer layer strands, and it twists with the fingers to twisting with the fingers for Z, cross section be circle；Described heart yearn stock and outer layer strand are all compiled sth. made by twisting by five steel wires and are formed, and it is twisted with the fingers to being all S sth. made by twisting.
Preferably, it is 20mm that seven strands of steel strands compile the lay pitch D twisted with the fingers, and the lay pitch d of winding steel wire is 5mm.
Further preferably, the gauge of wire compiling the seven strands of steel wires twisted with the fingers is 0.25mm.
This utility model engineering tire is compiled an additional winding steel wire after twisting with the fingers with seven strands of steel cords by seven strands of steel strands, the effect of outer winding steel wire is to prevent cord loose, the bending stiffness of reinforcing cord, improve cord resilience force in cotton tyre cord calendering formation process, improve the anti-fatigue performance of cord, being easy to strengthen the lay pitch of cord, improve the bonding force of cord and rubber, the lay pitch of winding steel wire acts the effect tightening up cord less than the lay pitch of seven strands of steel strands.
This utility model compared with prior art has the advantages that
1, owing to the steel wire diameter of steel cord strengthens, Fracture Force is high, therefore its bearing capacity is strong.
2, owing to its twisting closely and has round structure, intensity of steel wire height can keep identical potentiation, the puncture-resistant performance of the cord that improve.
3, seven strands of steel strands itself, seven strands of steel strand volume sth. made by twisting and winding steel wire are ordinary lay, have certain gap so that rubber can fully penetrate in steel cord between steel strand and steel strand, and corrosion resistance and good extends the service life of tire.
4, the effect of outer winding steel wire is to prevent cord loose, the bending stiffness of reinforcing cord, improves cord resilience force in cotton tyre cord calendering formation process, improves the anti-fatigue performance of cord, is easy to strengthen the lay pitch of cord, improves the bonding force of cord and rubber.
5, this steel cord strength height, puncture-resistant, anti-wear performance are good, reduce steel cord proportion in tire while improving the Fracture Force of steel cord.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of this utility model embodiment；
Fig. 2 is the transversary schematic diagram of Fig. 1；
Fig. 3 is the transversary schematic diagram of this utility model embodiment SMIS strands.
Sequence number in figure: 1, heart yearn stock, 2, outer layer strand, 3, winding steel wire.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Shown in Figure 1, a kind of engineering tire, with seven strands of steel cords, is compiled sth. made by twisting by steel wire and is formed, gauge of wire is 0.25mm, and it includes heart yearn stock 1, outer layer strand 2 and winding steel wire 3, and it is compiled an additional winding steel wire 3 after twisting with the fingers and forms by seven strands of steel strands, the sth. made by twisting of winding steel wire 3 is twisted with the fingers to for S, and lay pitch d is 5mm；Seven strands of steel strands are compiled to be formed after twisting with the fingers and are evenly spaced in the structure around heart yearn stock 1 by six strands of outer layer strands 2, and it is twisted with the fingers to being 20mm for Z sth. made by twisting, lay pitch D, and cross section is circular；Described heart yearn stock 1 and outer layer strand 2 are all compiled sth. made by twisting by five steel wires and are formed, and it is twisted with the fingers to being all S sth. made by twisting.
Embodiment is only to facilitate understand the technical solution of the utility model; it is not intended that the restriction to this utility model protection domain; every without departing from any simple modification, equivalent variations and the modification perhaps according to technical spirit of the present utility model, above scheme made in technical solutions of the utility model, all still fall within this utility model protection domain.
Claims (3)
1. engineering tire is with seven strands of steel cords, steel wire compile sth. made by twisting and form, including heart yearn stock (1) with outer layer strand (2), it is characterised in that: it is compiled an additional winding steel wire after twisting with the fingers and (3) forms by seven strands of steel strands, and winding steel wire sth. made by twisting (3) is twisted with the fingers to for S；Seven strands of steel strands are compiled to be formed after twisting with the fingers and are (2) evenly spaced in heart yearn stock (1) structure around by six strands of outer layer strands, and it twists with the fingers to twisting with the fingers for Z, cross section be circle；(2) (1) described heart yearn stock all compiled sth. made by twisting by five steel wires with outer layer strand and formed, and it is twisted with the fingers to being all S sth. made by twisting.
2. engineering tire according to claim 1 is with seven strands of steel cords, it is characterised in that: it is 20mm that seven strands of steel strands compile the lay pitch D twisted with the fingers, and winding steel wire lay pitch d (3) is 5mm.
3. engineering tire according to claim 1 and 2 is with seven strands of steel cords, it is characterised in that: the steel wire diameter compiling the seven strands of steel wires twisted with the fingers is 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098583.2U CN205368871U (en) | 2015-12-25 | 2015-12-25 | Engineering child is with seven strands of steel cords |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098583.2U CN205368871U (en) | 2015-12-25 | 2015-12-25 | Engineering child is with seven strands of steel cords |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205368871U true CN205368871U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521098583.2U Active CN205368871U (en) | 2015-12-25 | 2015-12-25 | Engineering child is with seven strands of steel cords |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205368871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442362A (en) * | 2015-12-25 | 2016-03-30 | 江苏兴达钢帘线股份有限公司 | Seven-strand steel cord for engineering tire |
-
2015
- 2015-12-25 CN CN201521098583.2U patent/CN205368871U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442362A (en) * | 2015-12-25 | 2016-03-30 | 江苏兴达钢帘线股份有限公司 | Seven-strand steel cord for engineering tire |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |