CN103660798B - A kind of whole steel wire radial tyre with carcass enhancement Layer - Google Patents
A kind of whole steel wire radial tyre with carcass enhancement Layer Download PDFInfo
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- CN103660798B CN103660798B CN201310696990.2A CN201310696990A CN103660798B CN 103660798 B CN103660798 B CN 103660798B CN 201310696990 A CN201310696990 A CN 201310696990A CN 103660798 B CN103660798 B CN 103660798B
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- carcass
- enhancement layer
- casing ply
- cord
- package end
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Abstract
The present invention provides a kind of whole steel wire radial tyre with carcass enhancement Layer, including carcass, carcass is from top to bottom divided into crown zone, shoulder area, sidewall area and bead region, carcass cord casing ply it is provided with in carcass, carcass cord casing ply has the first anti-package end, the radial outside of described carcass cord casing ply is pasted with carcass enhancement Layer, and described carcass enhancement Layer has the second anti-package end, there is radial height poor between described second anti-package end and the first anti-package end.The present invention can reduce tension force suffered by body cord, the region of stress concentration of dispersion carcass cord casing ply anti-package end, makes the shear strain peak-fall of carcass cord casing ply anti-package end, such that it is able to improve bearing capacity and the endurance of tire.
Description
Technical field
The present invention relates to whole steel wire radial tyre technical field, specifically one and there is carcass reinforcement
The whole steel wire radial tyre of layer.
Background technology
Growing along with national economy, vehicle condition constantly improves, the loading capacity of truck
The most constantly rising, tire is as the main load-supporting part of automobile, and its effect is more and more important.But,
In real life, the tire fault of truck especially carcass destruction and bead ftracture
Fault happens occasionally, and also contributes to the security of the lives and property of people while restriction economic development.
At present, existing whole steel wire radial tyre on market, its structure is only one layer carcass
Metal-cord, and use relatively common all-steel cord, when air pressure is bigger, steel wire curtain
Tension force suffered by line increases, and easily causes carcass cord break of plies；Further, at carcass cord
Casing ply turnup, carcass cord casing ply anti-package end and the carcass cord casing ply inside it exist
Relative displacement in opposite direction, i.e. due to steel bead wire existence " rotation ", carcass steel after inflation
Silk casing ply anti-package end has the trend of " extracting out ", causes this position to there is serious detrusion,
Easily cause the tear of carcass cord casing ply anti-package end.And position, sidewall is during tire rolling
Then periodically being subdued change by one, the fatigue strength of carcass cord cord directly affects takes turns
The service life of tire.
If using thicker all-steel cord, due to the increase of all-steel cord sectional area, although can subtract
The stress of little all-steel cord, but the shearing that can not effectively reduce carcass cord casing ply turnup becomes
Shape, and there may be the generation of following several deleterious situations: one is that thicker all-steel cord can make tire
The decrease of fatigue strength of body, thus reduce the service life of tire；Two is thicker all-steel cord meaning
Taste bigger section at all-steel cord severing, owing to section part does not has copper facing, thus bigger
Section just have bigger defect；Even if three be all-steel cord density is increased to current technology can
With the maximum reached, may still there is no abundant margin of safety.
Summary of the invention
It is an object of the invention to provide a kind of can effectively reduce suffered by carcass cord cord
The all steel SIZI with carcass enhancement Layer of the detrusion of power and carcass cord casing ply anti-package end
Radial tire.
The technical scheme is that
A kind of whole steel wire radial tyre with carcass enhancement Layer, including carcass, carcass is by up to
Under be divided into crown zone, shoulder area, sidewall area and bead region, be provided with carcass cord curtain in carcass
Layer of cloth, bead region has buries steel bead wire therein underground, and carcass cord casing ply is from steel bead wire footpath
The most lateral outer walking around is flipped up bottom steel bead wire again, forms carcass cord casing ply turnup
And there is the first anti-package end, the radial outside of described carcass cord casing ply is pasted with carcass and strengthens
Layer, described carcass enhancement Layer is outwards walked around bottom steel bead wire the most upwards from steel bead wire radially inner side
Upset, forms carcass enhancement Layer turnup and also has the second anti-package end, described second anti-package end and the
Radial height is there is poor between one anti-package end；Described carcass enhancement Layer is at least part of in crown zone
Being discontinuous, described discontinuous part is connected by film.
The described whole steel wire radial tyre with carcass enhancement Layer, described radial height difference is 5
Between millimeter～50 millimeters.
The described whole steel wire radial tyre with carcass enhancement Layer, described carcass enhancement Layer is tool
There is the painting plastic structure of all-steel cord.
The described whole steel wire radial tyre with carcass enhancement Layer, described carcass enhancement Layer is at tire
It is discontinuous in the central shaft both sides distance center axle 0 of Guan Qu～100 millimeters.
The present invention uses carcass on the basis of keeping whole steel wire radial tyre basic structural feature
Enhancement Layer structure, carcass cord casing ply and carcass enhancement Layer can use thinner all-steel cord,
There is a difference in height in the turn up height of carcass cord casing ply and carcass enhancement Layer, can be the most sacrificial
Domestic animal fatigue strength, do not amplify severing cross section defect, do not reduce margin of safety on the premise of increase whole
The blowing pressure of tire, the region of stress concentration of dispersion carcass cord casing ply anti-package end, make carcass
The shear strain peak-fall of metal-cord anti-package end, such that it is able to improve the bearing capacity of tire
And endurance.
Preferably, carcass enhancement Layer is at least part of in crown zone is discontinuous, discontinuous
Part is connected by film, such that it is able to utilize the thickness of film to take turns to the carcass controlling crown zone
Exterior feature, to meet the optimal design of balance outline.
Accompanying drawing explanation
Fig. 1 is the radial direction section structure schematic diagram of the specific embodiment of the invention；
Fig. 2 is the A portion enlarged drawing of Fig. 1；
Fig. 3 is certain specification whole steel wire radial tyre existing carcass steel under inflation and loading condition
The stress curve figure of silk cord.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of whole steel wire radial tyre with carcass enhancement Layer, bag
Include carcass 1, according to tire radially section structure, carcass 1 be from top to bottom divided into crown zone 2,
Shoulder area 3, sidewall area 4 and bead region 5, wherein, shoulder area 3, sidewall area 4 and bead region 5
It is respectively arranged with a pair, is symmetrically distributed in the section axis of symmetry central shaft of crown zone (the section axis of symmetry be also)
Both sides.Being provided with carcass cord casing ply 6 in carcass 1, carcass cord casing ply 6 is along carcass 1
The bead region 5 of side strides across sidewall area 4, shoulder area 3 and crown zone 2 and extends to another annularly
The bead region 5 of side.Bead region 5 has buries steel bead wire 7 therein, carcass cord casing ply 6 underground
Outwards walk around from steel bead wire 7 radially inner side and be flipped up again bottom steel bead wire 7, form carcass
Metal-cord turnup also has the first anti-package end 61.
The radial outside of carcass cord casing ply 6 is pasted with carcass enhancement Layer 8, carcass enhancement Layer 8
Outwards walk around from steel bead wire 7 radially inner side and be flipped up again bottom steel bead wire 7, form carcass
Enhancement Layer turnup also has the second anti-package end 81.The radial height and first of the second anti-package end 81
One 5 millimeters～the difference in height of 50 millimeters, Fig. 1 institute is there is between the radial height of anti-package end 61
It is shown as the turn up height turn up height higher than carcass cord casing ply 6 of carcass enhancement Layer 8, it is possible to
So that the turn up height of carcass cord casing ply 6 is higher than the turn up height of carcass enhancement Layer 8.Carcass
Enhancement Layer 8 uses the painting plastic structure with all-steel cord, the all-steel cord of carcass enhancement Layer 8 and tire
The all-steel cord of body metal-cord 6 has same or similar tensile mechanical properties.Patch adds carcass
After enhancement Layer 8, carcass cord casing ply 6 and carcass enhancement Layer 8 bear the inflation pressure of tire jointly
Power, it is possible to use thinner all-steel cord.
Use said structure, have the advantage that
One, owing to carcass cord casing ply 6 and carcass enhancement Layer 8 bear the blowing pressure jointly,
Tire is made to have a sufficiently large margin of safety, and carcass cord casing ply 6 and carcass enhancement Layer 8
Suffered tension force with do not paste add carcass enhancement Layer 8 time carcass cord casing ply 6 suffered by tension force compared with
Greatly reducing, now, on unit width carcass cord casing ply 6, all-steel cord quantity is constant
In the case of, it is possible to use thinner all-steel cord, such as filament diameter below 0.22 millimeter or
The all-steel cord original all-steel cord of replacement that person is thinner.So, the cost of all-steel cord part will not
Notable rising, the fatigue strength of carcass can increase, and uses thinner all-steel cord to mean steel
The density of silk cord can ratio sparse, such that it is able to the difficulty reduced in production technology.And it is thinner
All-steel cord have less severing cross section, defect is less.
Two, owing to having carcass enhancement Layer 8 and carcass enhancement Layer 8 and carcass cord casing ply
There is a difference in height between the radial height of the anti-package end of 6, carcass cord casing ply anti-package end is i.e.
Relative displacement in opposite direction between first anti-package end 61 and carcass enhancement Layer 8 can reduce, carcass
" extracting out " trend of metal-cord anti-package end also can reduce, and has disperseed carcass cord casing ply anti-
The stress central tendency in bag portion, makes the detrusion of original carcass cord casing ply anti-package end be distributed in
The carcass cord casing ply anti-package end (the i.e. first anti-package end 61) of new construction and carcass enhancement Layer anti-package
End (the i.e. second anti-package end 81), such that it is able to be substantially reduced the peak value of the shear strain in this region,
The endurance quality making tyre rim position improves.
From the foregoing, the present invention is keeping whole steel wire radial tyre basic structural feature (meridian
Line tire basic structural feature is that all-steel cord is laid along meridian direction, it is impossible to meridian side
To there being intersection, this principle is followed in the laying of the all-steel cord of carcass enhancement Layer of the present invention) on the basis of
Using carcass enhancement Layer structure, carcass cord casing ply and carcass enhancement Layer can use thinner steel
Silk cord, there is a difference in height in the turn up height of carcass cord casing ply and carcass enhancement Layer, can
With on the premise of not sacrificing fatigue strength, not amplifying severing cross section defect, do not reduce margin of safety
Increase the blowing pressure of whole tire, the area of stress concentration of dispersion carcass cord casing ply anti-package end
Territory, makes the shear strain peak stress of carcass cord casing ply anti-package end decline, such that it is able to improve
The bearing capacity of tire and endurance.
Additionally, as it is shown on figure 3, be certain the specification full steel wire meridian utilizing finite element analysis to obtain
Tire is all-steel cord (the hereinafter referred to as steel wire of carcass cord casing ply 6 under inflation and loading condition
Cord) stress curve figure.Abscissa represent along all-steel cord path to section axis of symmetry away from
From, vertical coordinate represents tension force suffered by all-steel cord.It will be seen that the scope of 0～100 millimeter
In namely crown zone 2, all-steel cord stress is less, about the half of maximum, and this position is described
The margin of safety of carcass cord casing ply 6 is abundant, it is not necessary to patch adds carcass enhancement Layer 8 again.And
In sidewall area 4 especially bead region 5, all-steel cord stress is relatively big, and patch adds carcass enhancement Layer 8 can
To significantly improve the bearing capacity at this position, thus improve the bearing capacity of whole tire.Therefore,
On the basis of original carcass structure, can in bead region 5, sidewall area 4, shoulder area 3 and
On the carcass cord casing ply 6 of part crown zone 2, patch adds carcass enhancement Layer 8, and in crown zone 2
Immediate vicinity, at the discontinuous position of carcass enhancement Layer 8, patch adds one layer of film 9, such that it is able to
Utilize the thickness of film 9 to control the carcass profile of crown zone 2, to meet the optimal of balance outline
Design.
The above embodiment is only to be described the preferred embodiment of the present invention, not
The scope of the present invention is defined, on the premise of designing spirit without departing from the present invention, this area
Various deformation that technical scheme is made by those of ordinary skill and improvement, all should fall into this
In the protection domain that claims of invention determine.
Claims (4)
1. a whole steel wire radial tyre with carcass enhancement Layer, including carcass, carcass is from top to bottom divided into crown zone, shoulder area, sidewall area and bead region, carcass cord casing ply it is provided with in carcass, bead region has buries steel bead wire therein underground, carcass cord casing ply is outwards walked around bottom steel bead wire from steel bead wire radially inner side and is flipped up, forms carcass cord casing ply turnup and has the first anti-package end
It is characterized in that: the radial outside of described carcass cord casing ply is pasted with carcass enhancement Layer, described carcass enhancement Layer is outwards walked around bottom steel bead wire from steel bead wire radially inner side and is flipped up, form carcass enhancement Layer turnup and there is the second anti-package end, there is radial height between described second anti-package end and the first anti-package end poor；Described carcass enhancement Layer is at least part of in crown zone is discontinuous, and described discontinuous part is connected by film.
The whole steel wire radial tyre with carcass enhancement Layer the most according to claim 1, it is characterised in that: described radial height difference is between 5 millimeters～50 millimeters.
The whole steel wire radial tyre with carcass enhancement Layer the most according to claim 1, it is characterised in that: described carcass enhancement Layer is the painting plastic structure with all-steel cord.
The whole steel wire radial tyre with carcass enhancement Layer the most according to claim 1, it is characterised in that: it is discontinuous in the described carcass enhancement Layer central shaft both sides distance center axle 0 in crown zone～100 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696990.2A CN103660798B (en) | 2013-12-18 | 2013-12-18 | A kind of whole steel wire radial tyre with carcass enhancement Layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696990.2A CN103660798B (en) | 2013-12-18 | 2013-12-18 | A kind of whole steel wire radial tyre with carcass enhancement Layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103660798A CN103660798A (en) | 2014-03-26 |
| CN103660798B true CN103660798B (en) | 2016-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310696990.2A Expired - Fee Related CN103660798B (en) | 2013-12-18 | 2013-12-18 | A kind of whole steel wire radial tyre with carcass enhancement Layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN103660798B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649369Y (en) * | 2003-10-22 | 2004-10-20 | 天津诺曼地橡胶有限公司 | Full steel wire radial tyre |
| CN201009677Y (en) * | 2007-01-09 | 2008-01-23 | 昊华南方(桂林)橡胶有限责任公司 | All-steel radial project tire with transition reinforced layer |
| CN101253060A (en) * | 2005-09-01 | 2008-08-27 | 普利斯通及风驰通北美轮胎有限责任公司 | Tire having a sidewall reinforcement |
| EP2156966A1 (en) * | 2008-08-19 | 2010-02-24 | The Goodyear Tire & Rubber Company | Pneumatic tire with single non-continuous carcass ply |
| CN203611657U (en) * | 2013-12-18 | 2014-05-28 | 李双龙 | Whole-steel-wire radial ply tire with carcass reinforcing layer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203438781U (en) * | 2013-08-15 | 2014-02-19 | 山西德生轮胎股份有限公司 | Novel all steel radical truck tire for mine |
-
2013
- 2013-12-18 CN CN201310696990.2A patent/CN103660798B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649369Y (en) * | 2003-10-22 | 2004-10-20 | 天津诺曼地橡胶有限公司 | Full steel wire radial tyre |
| CN101253060A (en) * | 2005-09-01 | 2008-08-27 | 普利斯通及风驰通北美轮胎有限责任公司 | Tire having a sidewall reinforcement |
| CN201009677Y (en) * | 2007-01-09 | 2008-01-23 | 昊华南方(桂林)橡胶有限责任公司 | All-steel radial project tire with transition reinforced layer |
| EP2156966A1 (en) * | 2008-08-19 | 2010-02-24 | The Goodyear Tire & Rubber Company | Pneumatic tire with single non-continuous carcass ply |
| CN203611657U (en) * | 2013-12-18 | 2014-05-28 | 李双龙 | Whole-steel-wire radial ply tire with carcass reinforcing layer |
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| Publication number | Publication date |
|---|---|
| CN103660798A (en) | 2014-03-26 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20160921 Termination date: 20211218 |