CN212353485U - Belt ply of truck radial tire and truck radial tire - Google Patents
Belt ply of truck radial tire and truck radial tire Download PDFInfo
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- CN212353485U CN212353485U CN202020404887.1U CN202020404887U CN212353485U CN 212353485 U CN212353485 U CN 212353485U CN 202020404887 U CN202020404887 U CN 202020404887U CN 212353485 U CN212353485 U CN 212353485U
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Abstract
The utility model belongs to the technical field of the tire is made, local atress in the hat under complicated road conditions is taken to zero degree on the radial tire to current, the steel wire produces irregular deformation, local themogenesis is too high, cause the problem of delaminating, provide a radial tire area and restraint the layer, layer and fourth area and restraint the layer are restrainted to the second area including first area, the layer is restrainted to the third zero degree, the tip parallel and level of layer and third area are restrainted to the second area, layer and nylon layer at both ends are restrainted to the third zero degree area including setting up zero degree steel wire layer and setting up for respectively at the intermediate position, zero degree steel wire layer is formed by 1 ~ 10 steel wire rubber-coated calendering, the continuous spiral winding of steel wire is restrainted on the layer at the second area, steel wire individual layer distributes, the steel wire angle is 0, the angle of nylon is 30 ~ 60, the width that the layer is restrainted to the fourth area is. Can guarantee that the tire can provide stronger tension under the high-speed running state of rubble road conditions, avoid belted layer to produce fatigue failure and themogenesis destruction because of stress strain effect.
Description
Technical Field
The utility model belongs to the technical field of the tire is made, concretely relates to layer and load radial tire are restrainted to load radial tire area.
Background
With the development and progress of tire technology, the application of all-steel load radial tires is increasing, and when a truck and passenger vehicle tire runs under high load and high speed, a framework material, particularly a crown steel wire belt layer is easy to deform and generate heat under stress, so that the rubber coating on the surface of a steel wire is aged, the performance is reduced, crown void is easy to occur, and traffic accidents are caused. The limit portion of steel wire belted layer is effectively banded to traditional zero degree band structure ability, restraines its deformation, but under complicated road conditions condition, especially rubble road surface condition, tire crown portion steel wire atress is different, produces irregular deformation, can take place local steel wire delaminating during long time use, causes the great potential safety hazard, causes tire life to reduce simultaneously, improves use cost.
Disclosure of Invention
Local atress in the crown under complicated road conditions is taken to zero degree to on the current radial tire leads to the steel wire to produce irregular deformation, easily causes to take the regional themogenesis of layer too high, causes the problem of delaminating, the utility model provides a radial tire is taken layer and load radial tire, is taken layer and nylon zero degree layer to combine together through winding type zero degree, guarantees that the tire can provide stronger tension under the high-speed running state of rubble road conditions, avoids taking the layer to produce fatigue failure and themogenesis destruction because of stress-strain.
The utility model discloses a realize through following technical scheme:
the utility model provides a load radial tire area is restrainted layer, includes the first area of restrainting layer, the second area of restrainting layer, the third zero degree area of restrainting layer and the fourth area of restrainting layer of outwards arranging in proper order from the carcass layer, the tip parallel and level of the second area of restrainting layer and the third area of restrainting layer, the third zero degree area of restrainting layer contains three parts, is the zero degree steel wire layer that sets up in the intermediate position and sets up the nylon layer at both ends respectively, and the calendering thickness of zero degree steel wire layer is unanimous with the calendering thickness of nylon layer, and the zero degree steel wire layer is formed by 1 ~ 10 steel wire rubber-covered calendars, and the continuous spiral winding of steel wire is on the second area of restrainting layer, and the steel wire individual layer distributes, and the steel wire angle is 0, and the nylon layer is nylon fiber individual layer calendering structure, and the angle of nylon is 30 ~ 60, and the width of the fourth area of restrainting layer is.
Further, the nylon angle of the nylon layer is 45 °.
Further, the joint on nylon layer adopts the oblique angle overlap joint mode, and the oblique angle is unanimous with the angle of deciding, and the overlap joint width is 1 ~ 3 mm.
Furthermore, the nylon layer is made of glass fiber reinforced materials. The heat resistance can be improved.
Further, the first belt ply, the second belt ply and the fourth belt ply are all of a single-layer steel wire arrangement structure, wherein the angle of steel wires of the first belt ply is 50-52 degrees; the angle of the steel wire of the second belt layer is 18-22 degrees, and the angle of the steel wire of the fourth belt layer is 18-22 degrees; the attaching direction of the first belt layer is the same as that of the second belt layer, and the attaching direction of the fourth belt layer is opposite to that of the second belt layer.
The utility model also provides a load radial tire, which comprises a tire crown, a tire side and a tire bead, wherein the tire crown comprises a tire tread, a belt ply, a tire body cord fabric and a tire shoulder cushion rubber, the belt ply comprises a first belt ply, a second belt ply, a third zero-degree belt ply and a fourth belt ply which are sequentially arranged from the tire body cord ply layer to the outside, the ends of the second belt ply and the third belt ply are flush, the third zero-degree belt ply comprises three parts, namely a zero-degree steel wire layer arranged in the middle and nylon layers arranged at two ends, wherein the calendering thickness of the zero-degree steel wire layer is consistent with that of the nylon layers, the zero-degree steel wire layer is formed by calendering 1-10 steel wires with glue, the steel wires are continuously and spirally wound on the second belt ply, the steel wires are distributed in a single layer mode, the angle of the steel wires is 0 degree, the nylon layers are of nylon fiber single-layer calendering structures, and the angle of the nylon is 30-60 degrees; the width of the fourth belted layer is greater than that of the wound zero-degree steel wire layer, and the two ends of the fourth belted layer are 10-30 mm wider than the wound zero-degree steel wire layer.
The utility model has the advantages that: the nylon layers are arranged at the two ends of the zero-degree steel wire layer, so that the third zero-degree layer is flush with the end part of the second belted layer, the stress concentration is avoided on the premise of ensuring that the steel wire belted layer is effectively tightened, the irregular deformation of the steel wire caused by uneven stress of the belted layer under complex road conditions is avoided, and the phenomenon of delamination caused by over-high local heat generation of the belted layer is avoided; the rigidity of the shoulder part of the tire can be reduced, the shearing heat generation among multiple layers of steel wires is avoided, and the phenomena of shoulder cracking and shoulder hollowing are avoided.
Drawings
FIG. 1 is a schematic structural view of a belt of a radial tire;
figure 2 is a schematic view of a radial tire structure.
In each of the above figures, 1, the first belt layer; 2. a second belt layer; 31 and 32, nylon layers; 32. a zero-degree steel wire layer; 4. a fourth belt layer; 5. a tread; 6. a carcass ply; 7. and a tire shoulder wedge.
Detailed Description
In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Example 1
A radial ply tire belt suitable for a gravel road comprises a first belt ply layer 1, a second belt ply layer 2, a third zero-degree belt ply layer and a fourth belt ply layer 4, wherein the first belt ply layer 1 is arranged on a carcass layer, and the second belt ply layer 2, the third zero-degree belt ply layer and the fourth belt ply layer 4 are sequentially arranged upwards as shown in figures 1 and 2. The width of the first belt layer 1 is smaller than that of the second belt layer 2, the width of the second belt layer 2 is the same as that of the third belt layer, and the end parts of the second belt layer 2 and the third belt layer are flush. The zero degree belt is symmetrically disposed on the tire and therefore only a portion is shown in FIG. 2.
As shown in fig. 1, the first belt layer 1, the second belt layer 2 and the fourth belt layer 4 are all a single-layer steel wire arrangement structure, wherein the steel wire angle of the first belt layer 1 is 50 °; the steel wire angle of the second belt ply 2 is 20 degrees, and the steel wire angle of the fourth belt ply 4 is 20 degrees; the first belt layer 1 and the second belt layer 2 are attached in the same direction, and the fourth belt layer 4 is attached in the opposite direction to the second belt layer 2. The steel wire angle is the angle between the steel wire and the circumferential direction of the tire.
As shown in fig. 1, the third zero-degree belt layer includes three portions, a zero-degree steel wire layer 32 disposed at the middle position and nylon layers 31, 33 disposed at both ends, respectively, and the calendered thickness of the zero-degree steel wire layer 32 is in accordance with the calendered thickness of the nylon layers 31, 33. Zero degree steel wire layer 32 is continuous spiral winding's circumference enhancement layer, is formed by 2 steel wires rubber-coated calendering, and on layer 2 was restrainted to the continuous spiral winding of steel wire on the second area was restrainted, and the steel wire angle is 0 approximately, and this zero degree layer of wound form can effectual dispersion local stress to it is stronger to the power of cramping on tire working layer, adopt zero degree layer of wound form after, zero degree layer does not connect unsmooth, can reduce the stress concentration phenomenon of joint department by a wide margin.
The nylon layers 31 and 33 are of single-layer rolled nylon fiber structures, the angle of the nylon is 30 degrees, material displacement caused by interlayer shearing can be reduced, and heat generation is reduced.
The width of the fourth belt ply 4 is greater than the width of the zero-degree steel wire ply 32, the two ends of the fourth belt ply are wider than the zero-degree steel wire ply 32 by about 20mm, and the structural design can effectively utilize the high shearing resistance of nylon and reduce the interlayer shearing between the second belt ply 2 and the fourth belt ply 4.
Example 2
In this embodiment, the structure and arrangement of the nylon layers 31 and 33 are optimized based on embodiment 1. The angle of the nylon is 45 degrees, which is the optimal angle, and the angle can obviously reduce the material displacement caused by interlayer shearing and reduce heat generation; the joint on nylon layer 31, 33 adopts the oblique angle overlap joint mode, and the oblique angle is unanimous with the angle of deciding, and the overlap joint width is 2 mm.
Example 3
A heavy-duty radial tire comprises a crown, a sidewall and a tire bead, wherein the crown comprises a tire tread 5, a belt layer, a carcass ply 6 and a shoulder wedge 7, the belt layer comprises a first belt layer 1, a second belt layer 2, a third zero-degree belt layer and a fourth belt layer 4 which are sequentially arranged from the carcass ply outwards, and the ends of the second belt layer 2 and the third belt layer are flush.
As shown in fig. 1, the first belt layer 1, the second belt layer 2 and the fourth belt layer 4 are all a single-layer steel wire arrangement structure, wherein the steel wire angle of the first belt layer 1 is 50 °; the steel wire angle of the second belt ply 2 is 20 degrees, and the steel wire angle of the fourth belt ply 4 is 20 degrees; the first belt layer 1 and the second belt layer 2 are attached in the same direction, and the fourth belt layer 4 is attached in the opposite direction to the second belt layer 2. The steel wire angle is the angle between the steel wire and the circumferential direction of the tire.
The third zero-degree belt ply comprises three parts, as shown in fig. 1, namely a zero-degree steel wire layer 32 arranged in the middle and nylon layers 31 and 33 arranged at two ends, wherein the calendering thickness of the zero-degree steel wire layer 32 is consistent with that of the nylon layers 31 and 33, the zero-degree steel wire layer 32 is formed by calendering 10 steel wires coated with glue, the steel wires are continuously and spirally wound on the second belt ply and are distributed in a single-layer manner, the angle of the steel wires is 0 degree, the nylon layer is made of glass fiber reinforced materials, and the angle of the nylon is 60 degrees; the width of the fourth belt ply 4 is greater than that of the zero-degree steel wire ply 32, and both ends of the fourth belt ply are 10mm wider than the zero-degree steel wire ply. The joint on nylon layer 31, 33 adopts the oblique angle overlap joint mode, and the oblique angle is unanimous with the angle of deciding, and the overlap joint width is 3 mm.
Under the condition of a gravel road surface, the steel wires on the crown part of the tire are uniformly stressed and are not easy to deform irregularly, local steel wire delamination is not easy to occur when the tire is used for a long time, and the service life of the tire is long.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (5)
1. The belt ply of the radial truck tire is characterized by comprising a first belt ply, a second belt ply, a third zero belt ply and a fourth belt ply which are sequentially arranged from a tire body layer to the outside, wherein the ends of the second belt ply and the third belt ply are parallel and level, the third zero belt ply comprises three parts, namely a zero steel wire layer arranged in the middle and nylon layers arranged at two ends, the calendering thickness of the zero steel wire layer is consistent with that of the nylon layers, the zero steel wire layer is formed by calendering 1-10 steel wires with glue, the steel wires are continuously and spirally wound on the second belt ply, the steel wires are distributed in a single layer, the angle of the steel wires is 0 degree, the nylon layer is a nylon fiber single-layer calendering structure, and the angle of the nylon is 30-60 degrees; the width of the fourth belted layer is greater than that of the zero-degree steel wire layer, and the two ends of the fourth belted layer are respectively widened by 10-30 mm from the wound zero-degree steel wire layer.
2. The radial tire belt of claim 1 wherein the nylon layer has a nylon angle of 45 °.
3. The radial tire belt ply of claim 1, wherein the joint of the nylon layer is in a bevel lapping manner, the bevel angle is consistent with the cutting angle, and the lapping width is 1-3 mm.
4. The radial belt of claim 1, wherein the first, second and fourth belt are all single-ply steel wire arrangement, wherein the first belt wire angle is 50 ° to 52 °; the angle of the steel wire of the second belt layer is 18-22 degrees, and the angle of the steel wire of the fourth belt layer is 18-22 degrees; the attaching direction of the first belt layer is the same as that of the second belt layer, and the attaching direction of the fourth belt layer is opposite to that of the second belt layer.
5. A truck radial tire comprises a crown, a sidewall and a tire bead, wherein the crown comprises a tread, a belt layer, a carcass ply and a shoulder wedge, it is characterized in that the belt ply comprises a first belt ply, a second belt ply, a third zero-degree belt ply and a fourth belt ply which are sequentially arranged from the tire body cord ply layer to the outside, the ends of the second belt ply and the third belt ply are flush, the third zero-degree belt ply comprises three parts, namely a zero-degree steel wire layer arranged in the middle and nylon layers arranged at two ends, wherein the calendering thickness of the zero-degree steel wire layer is consistent with that of the nylon layers, the zero-degree steel wire layer is formed by calendering 1-10 steel wires with glue, the steel wires are continuously and spirally wound on the second belt ply, the steel wires are distributed in a single layer mode, the angle of the steel wires is 0 degree, the nylon layers are of nylon fiber single-layer calendering structures, and the angle of the nylon is 30-60 degrees; the width of the fourth belted layer is greater than that of the zero-degree steel wire layer, and the two ends of the fourth belted layer are respectively widened by 10-30 mm from the wound zero-degree steel wire layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404887.1U CN212353485U (en) | 2020-03-26 | 2020-03-26 | Belt ply of truck radial tire and truck radial tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404887.1U CN212353485U (en) | 2020-03-26 | 2020-03-26 | Belt ply of truck radial tire and truck radial tire |
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| Publication Number | Publication Date |
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| CN212353485U true CN212353485U (en) | 2021-01-15 |
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| CN202020404887.1U Active CN212353485U (en) | 2020-03-26 | 2020-03-26 | Belt ply of truck radial tire and truck radial tire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509204A (en) * | 2021-12-23 | 2022-05-17 | 赛轮(沈阳)轮胎有限公司 | Stress-strain measurement method for inflated all-steel radial tire |
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2020
- 2020-03-26 CN CN202020404887.1U patent/CN212353485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509204A (en) * | 2021-12-23 | 2022-05-17 | 赛轮(沈阳)轮胎有限公司 | Stress-strain measurement method for inflated all-steel radial tire |
| CN114509204B (en) * | 2021-12-23 | 2024-01-02 | 赛轮(沈阳)轮胎有限公司 | Method for measuring stress and strain of all-steel radial tire after inflation |
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