CN208290860U - With the inflation dumper heavy load radial tire for delaying belt ends to damage - Google Patents
With the inflation dumper heavy load radial tire for delaying belt ends to damage Download PDFInfo
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- CN208290860U CN208290860U CN201820489745.2U CN201820489745U CN208290860U CN 208290860 U CN208290860 U CN 208290860U CN 201820489745 U CN201820489745 U CN 201820489745U CN 208290860 U CN208290860 U CN 208290860U
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- dumper
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Abstract
The utility model provides a kind of with the inflation dumper heavy load radial tire for delaying belt ends to damage, buffering transition rubber layer is provided between first belt and the both side ends of the second belt, extended distance of the buffering transition rubber layer from the first belt ends to equatorial plane is L1, there is 0.25≤L1/W1≤ 0.5 relationship, buffering extended distance of the transition rubber layer from the second belt ends to sidewall is L2, it is L the distance between from the second belt ends to crown lower extreme point3, there is 0.25≤L2/L3≤ 0.5 relationship.The utility model increases rubber buffer component between the first belt and the second belt ends, it thickeies the sizing material thickness between belt ends, fill the gap between belt ends, avoid the risk there are bubble, also there is inhibiting effect to the shear-deformable of belt ends simultaneously, delay belt ends because of the extension speed after shear-deformable generation breach, to reach the probability for reducing tire earlier period damage, Life of Tyre is promoted.
Description
Technical field
The utility model relates to tyre technologies, and in particular to it is a kind of with delay belt ends damage inflation from
It unloads heavy load radial tire.
Background technique
All-steel load-bearing radial tire generallys use three layers of non-zero degree belt and two layers of 0 degree of belt structures, market wheel
The failure mode of tire crown position is essentially the first belt and the damage of the second belt ends and shoulder occurs so as to cause tire
The failure problems such as delamination terminate service life too early.The first belt is transition zone in the crown structure, and the second belt is work
Make layer, the first belt and the second belt since direction and angle are different, cause it is shear-deformable larger between the two, due to the
One belt and the second belt ends are shear-deformable maximum position point, and belt ends be connect with rubber it is critical
Point easily causes belt ends that fricting shearing occurs if belt ends upper and lower sizing material thickness is too thin, and then causes too early
It is cracked.
And the step drop between the first belt and the second belt ends is easy to cause sizing material to fill insufficient, gas
Bubble is not easy to be discharged, and has some setbacks so as to cause suppressing, and causes belt ends that cannot adequately bond with sizing material, this further aggravates
The extension of belt ends cracked backward Nonuniform Domain Simulation of Reservoir and then develop into the initial failures such as shoulder delamination, this defect
The premature damage of tire is caused so as to cause the shortening of service life.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of with the inflation for delaying belt ends to damage
Dumper heavy load radial tire increases rubber buffer component, thickeies glue thickness above the first belt ends, is conducive to steel wire and rubber
Bonded between glue it is even closer, sizing material filling it is more closely knit, suppressed between each component it is more smooth, to reduce belt ends mistake
The speed to extend after the risk and damage early damaged, promotes the service life of tire.
In order to solve the above technical problems, the utility model adopts the following technical solution:
It is a kind of with delay belt ends damage inflation dumper heavy load radial tire, including carcass, tyre surface with
And at least two layers of belt between carcass and tyre surface is set, the belt includes the first belt and the second belt,
Wherein the length of the first belt horizontal direction is 2W1, the length of the second belt horizontal direction is 2W2, first belt and
Buffering transition rubber layer is provided between the both side ends of second belt, the buffering transition rubber layer is from the first belt ends
It is L to the extended distance of equatorial plane1, there is 0.25≤L1/W1≤ 0.5 relationship buffers transition rubber layer from the second banding
Layer end to the extended distance on sidewall be L2, it is L the distance between from the second belt ends to crown lower extreme point3, have 0.25
≤L2/L3≤ 0.5 relationship.
Further, it is described buffering transition rubber layer above the first belt ends with a thickness of H1, and 2mm≤H1≤
4mm, the buffering transition rubber layer below the second belt ends with a thickness of H2, and 2mm≤H2≤5mm。
Further, the length 2W of the first belt horizontal direction1, the second belt horizontal direction length 2W2Tool
There is 5mm≤W2-W1The relationship of≤20mm.
From the above technical scheme, the utility model is in the case where guaranteeing other performances of tire, by first band
Increase rubber buffer component between beam layer and the second belt ends, not only thickeies the first belt and the second belt ends
Between sizing material thickness, and more fully fill the gap between the first belt and the second belt ends, avoid
There are the risks of bubble between one belt and the second belt ends, while to the first belt and the second belt ends
It is shear-deformable also to have inhibiting effect, delay belt ends because of the extension speed after shear-deformable generation breach, to reach drop
The probability of low tire earlier period damage promotes Life of Tyre.
Detailed description of the invention
Fig. 1 is the partial sectional view in the utility model tyre equatorial direction, and wherein filled black region is increased slow
It breaks through and crosses rubber layer.
Specific embodiment
A kind of preferred embodiment of the utility model is described in detail with reference to the accompanying drawing.
The tire 1 includes carcass 2, is layed in the tire of carcass radially all tyre surface 3, and setting carcass with
Belt between tyre surface, the tire shoulder 4 for being set to tyre surface two sides and sidewall 5.The belt is at least two layers, the present embodiment needle
Triple layer belt beam layer (having two layers of 0 ° of belts) is illustrated.
The belt includes the first belt 61, the second belt 62 and third belt 63, wherein the first belt
The length of horizontal direction is 2W1, the length of the second belt horizontal direction is 2W2, from the second belt ends B to crown lower end
The distance between point C is L3.The length of belt half is illustrated only in Fig. 1.
The utility model between the first belt and the second belt both side ends by being respectively provided with buffering transition rubber layer 7
To increase tyre performance.As shown in Figure 1, the first belt end points for being located at tire side are A, buffering transition rubber layer is to red
It is A1 point that the road face direction CL, which extends with the intersection point of the first belt, then the distance between A point and A1 point are L1, the L1With W1Between
With 0.25≤L1/W1≤ 0.5 relationship, preferably L1/W1It is 0.4.
The second belt ends point B positioned at tire side, buffering transition rubber layer extend the intersection point with tyre surface to sidewall
For B1 point, the distance between B point and B1 point are L2, the intersection point on tyre surface and sidewall is C point, and the distance between B point and C point are L3, should
L2With L3Between have 0.25≤L2/L3≤ 0.5 relationship, preferably L2/L3It is 0.3.
The utility model also increases tyre performance, the buffering transition by the thickness at optimization rubber layer different location
Rubber layer above the first belt ends A with a thickness of H1, and 2mm≤H1≤ 4mm, the buffering transition rubber layer is in the second band
Below beam layer end B with a thickness of H2, and 2mm≤H2≤5mm.Preferably, H1For 3mm, H2For 4mm.
If the buffering transition rubber layer size is with regard to less than normal, the effect of performance when less than above-mentioned length and the range of thickness
It is just more small, delay the inhibiting effect of damage also more small belt ends, increases answering for tire production instead
Miscellaneous degree problem；If exceed above range, the buffering transition rubber layer size is too big, will lead to the first belt ends and stays,
Belt entirety irregularity, causes local pressure to increase, and to delaying belt ends damage also very unfavorable, also adds simultaneously
Manufacturing cost.
The length that the utility model also passes through two layers of belt of restriction also advanced optimizes tyre performance, first banding
The length 2W of 61 horizontal direction of layer1, 62 horizontal direction of the second belt length 2W2With 5mm≤W2W1The relationship of≤20mm,
Preferably W2-W1For 17.5mm.
If will cause the first belt beyond above range and the second belt stress is seriously unbalanced, local stress is caused
It concentrates, and buffers the effect that transition rubber layer is also unable to give full play filling step gap.
L is controlled by changing1、L2、L3、H1、H2、W1、W2Scale relationship, realize to the first belt of tire, the
The rationalization of material is distributed design between two belts, tire shoulder and buffering transition rubber layer, guarantees that material is sufficient filling with, reduces
Be vented it is unsmooth, with protect belt ends sufficiently with material bond, reduce the exposed fricting shearing in end risk, make belt by
Power is more balanced, delays and reduces belt ends damage and extend, to reach the probability for reducing tire earlier period damage, is promoted
Life of Tyre.
From the technical solution of the utility model choose case carry out tire FEM Simulation, compare it is original design and
Increase belt stress condition after buffering transition rubber layer designs, compares the influence to belt.
The case of following table, selection carries out belt stress condition after tire FEM Simulation:
It is the length for only optimizing buffering transition rubber layer that wherein Examples 1 and 2 are corresponding, and corresponding embodiment 3 and 4 is excellent
Change the length and thickness of buffering transition rubber layer, corresponding embodiment 5,6,7 and 8 are to optimize buffering transition rubber layer simultaneously
The horizontal length of length, thickness and belt is poor.
The first belt shear strain and the second belt using original design are sheared as standard index, to the 8 of selection
A case carries out finite element modelling comparative analysis, and result of study shows that belt shear strain about reduces by 5% or so, and shearing is answered
The reduction of change illustrates that the creeping deformation amount of belt ends becomes smaller, this be to Life of Tyre it is positive, to a certain extent instead
Mirror the technical effect of the utility model.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (7)
1. it is a kind of with delay belt ends damage inflation dumper heavy load radial tire, including carcass, tyre surface and
At least two layers of belt between carcass and tyre surface is set, which is characterized in that the belt includes the first belt and the
Two belts, wherein the length of the first belt horizontal direction is 2W1, the both side ends of first belt and the second belt
Between be provided with buffering transition rubber layer, extension of the buffering transition rubber layer from the first belt ends to equatorial plane away from
From for L1, there is 0.25≤L1/W1≤ 0.5 relationship, buffer extension of the transition rubber layer from the second belt ends to sidewall away from
From for L2, it is L the distance between from the second belt ends to crown lower extreme point3, there is 0.25≤L2/L3≤ 0.5 relationship.
2. inflation dumper heavy load radial tire according to claim 1, which is characterized in that the buffering transition rubber
Layer above the first belt ends with a thickness of H1, and 2mm≤H1≤ 4mm, the buffering transition rubber layer is at the second belt end
Below portion with a thickness of H2, and 2mm≤H2≤5mm。
3. inflation dumper heavy load radial tire according to claim 1 or 2, which is characterized in that first banding
The length 2W of layer horizontal direction1, the second belt horizontal direction length 2W2With 5mm≤W2-W1The relationship of≤20mm.
4. inflation dumper heavy load radial tire according to claim 3, which is characterized in that W2-W1For 17.5mm.
5. inflation dumper heavy load radial tire according to claim 1 or 2, which is characterized in that L1/W1It is 0.4.
6. inflation dumper heavy load radial tire according to claim 1 or 2, which is characterized in that L2/L3It is 0.3.
7. inflation dumper heavy load radial tire according to claim 2, which is characterized in that H1For 3mm, H2For 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820489745.2U CN208290860U (en) | 2018-04-04 | 2018-04-04 | With the inflation dumper heavy load radial tire for delaying belt ends to damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820489745.2U CN208290860U (en) | 2018-04-04 | 2018-04-04 | With the inflation dumper heavy load radial tire for delaying belt ends to damage |
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| Publication Number | Publication Date |
|---|---|
| CN208290860U true CN208290860U (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820489745.2U Active CN208290860U (en) | 2018-04-04 | 2018-04-04 | With the inflation dumper heavy load radial tire for delaying belt ends to damage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357303B (en) * | 2018-04-04 | 2024-02-09 | 安徽佳通乘用子午线轮胎有限公司 | Pneumatic dumper truck radial tire with function of delaying damage of end part of belt layer |
-
2018
- 2018-04-04 CN CN201820489745.2U patent/CN208290860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357303B (en) * | 2018-04-04 | 2024-02-09 | 安徽佳通乘用子午线轮胎有限公司 | Pneumatic dumper truck radial tire with function of delaying damage of end part of belt layer |
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