CN218463414U

CN218463414U - Novel all-steel radial tire with belted layer structure

Info

Publication number: CN218463414U
Application number: CN202221539930.0U
Authority: CN
Inventors: 王�锋; 张雪令; 陈雪梅; 马小刚; 李明; 刘晶晶; 冯红领
Original assignee: Shandong Linglong Tyre Co Ltd
Current assignee: Shandong Linglong Tyre Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-02-10
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to an all-steel radial tire technical field discloses a novel all-steel radial tire of belted layer structure, including matrix, child hat, two tire shoulders, two side walls, belted layer including set up in the middle part of the child hat first belted layer, second belted layer, third belted layer and fourth belted layer to and the symmetry sets up in the zero degree belted layer of tire shoulder; the first belt ply, the second belt ply, the third belt ply and the fourth belt ply are sequentially attached and connected from the tire body to the tire crown direction along the radial direction in the middle of the tire crown; the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer. The utility model discloses a tire under the long-distance service condition in being suitable for of tire can the effective control child hat warp, and ground pressure distributes more evenly, reduces unusual wearing and tearing, avoids the tire to take place to destroy in the use early stage, and the belt structure can strengthen the intensity and the durability of child hat simultaneously to promote the load capacity and the shock resistance of tire.

Description

Novel all-steel radial tire with belted layer structure

Technical Field

The utility model relates to an all-steel radial tire technical field especially relates to a novel all-steel radial tire of belted layer structure.

Background

At present, a belt structure of an all-steel radial tire generally adopts a 4-layer structure or a traditional 3+ 0-degree structure as shown in figure 1; the 4-layer structure has the advantages of low rolling resistance, abrasion, long service life and the like, but in the middle and later stages of the actual use process, as the belt layer is frequently bent and deformed, the strength of the shoulder part is low, the binding force is reduced, and quality problems such as shoulder part cracks, shoulder parts (explosion) and the like occur in serious cases; seriously affecting the service life of the tire; 3-degree structure has only 3 banding layers in the middle of the crown part, the rigidity of the middle part of the crown is low, and the wear resistance and puncture resistance are poor; and the shoulder two-layer zero degree structure of shoulder, belted layer shoulder thickness is higher than the middle part, leads to ground pressure inhomogeneous, and then leads to the tire abnormal wear, and the excessive unevenness of belted layer easily appears stress concentration in the belted layer tip, produces the crackle in handing-over department, causes problems such as crown void, ditch crack.

SUMMERY OF THE UTILITY MODEL

The utility model discloses with first band beam layer, second band beam layer, third band beam layer and fourth band beam layer radially by the matrix to the connection of laminating in proper order at the child hat middle part, zero degree band beam layer circumference sets up in the axial both ends on third band beam layer, is under the long-distance service condition in order to solve, the tire can take place the child hat and warp, unusual wearing and tearing, and the phenomenon of breaking takes place in the use early easily.

In some embodiments of the application, the arrangement mode of the belt layer in the middle of the tire crown is improved, the middle of the tire crown comprises a first belt layer, a second belt layer, a third belt layer and a fourth belt layer, the first belt layer and the second belt layer are arranged in the same direction or in a crossed manner, the second belt layer and the third belt layer are arranged in a crossed manner, the third belt layer and the fourth belt layer are arranged in a crossed manner or in the same direction, the arrangement mode is simple to process, the operation is convenient, and meanwhile, the stability of the tire is guaranteed.

In some embodiments of the present application, the structure of the zero-degree belt layer is improved, the zero-degree belt layer is circumferentially disposed at two axial ends of the third belt layer, and the zero-degree belt layer and the third belt layer are circumferentially wound to form an angle of 0 to 5 °, and meanwhile, a gap of-2 to 6mm is formed between two ends of the third belt layer and the zero-degree belt layer on the corresponding side. The mode can effectively reduce stress concentration, avoid the problems of crown hollowness and furrow cracking and prolong the service life of the tire.

In some embodiments of the present application, the width of the belt layer is improved, and the width values of the second belt layer, the first belt layer, the fourth belt layer and the third belt layer are sequentially decreased progressively. The first belt layer and the third belt layer can be staggered better, heat generation of the tire can be effectively inhibited, the effect of reinforcing the tire can be played simultaneously, the first belt layer and the tire body can be effectively protected, and damage to the belt layer is prevented.

The utility model discloses a realize through following technical scheme:

an all-steel radial tire with a novel belt structure comprises a tire body; the tire crown is arranged on the outer side of the top of the tire body; the two tire shoulders are symmetrically connected to the two sides of the tire crown; the two sidewalls are symmetrically connected to the outer sides of the tire shoulders; a belt located between the crown and the carcass; the belt layers comprise a first belt layer, a second belt layer, a third belt layer and a fourth belt layer which are arranged in the middle of the crown, and zero-degree belt layers symmetrically arranged on the tire shoulders; the first belt layer, the second belt layer, the third belt layer and the fourth belt layer are sequentially attached and connected in the middle of the crown from the tire body to the crown direction along the radial direction; the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer.

Preferably, the first belt layer and the second belt layer are arranged in the same direction or in a crossed manner, the second belt layer and the third belt layer are arranged in a crossed manner, and the third belt layer and the fourth belt layer are arranged in a crossed manner or in the same direction.

Preferably, the fourth belt layer is bonded to the outside of the zero-degree belt layer.

Preferably, the zero-degree belt layer and the third belt layer are wound in a circumferential direction at an angle of 0 to 5 °.

Preferably, a gap is formed between each end of the third belt layer and the zero-degree belt layer on the corresponding side, and the gap ranges from-2 mm to 6mm.

Preferably, the all-steel radial tire further comprises an inner liner attached to the inner side of the tire body.

Preferably, the inner liner layer comprises: the transition layer is attached to the inner side of the tire body; and the air-tight layer is attached to the inner side of the transition layer.

Preferably, the circumferential angle between the first belt layer and the tire body is 40-70 degrees.

Preferably, the circumferential angles of the second belt layer, the third belt layer and the fourth belt layer to the carcass are all 15 to 25 °.

Preferably, the width values of the second belt layer, the first belt layer, the fourth belt layer and the third belt layer are sequentially decreased progressively.

The utility model provides a novel belted layer structure's all steel radial tire compares prior art, has following beneficial effect:

the all-steel radial tire with the novel belted layer structure comprises a tire body, a tire crown, two tire shoulders, two tire sides and a belted layer, wherein the belted layer comprises a first belted layer, a second belted layer, a third belted layer, a fourth belted layer and zero-degree belted layers, wherein the first belted layer, the second belted layer, the third belted layer and the fourth belted layer are arranged in the middle of the tire crown, and the zero-degree belted layers are symmetrically arranged on the tire shoulders; the first belt ply, the second belt ply, the third belt ply and the fourth belt ply are sequentially attached and connected from the tire body to the tire crown direction along the radial direction in the middle of the tire crown; the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer. In this application, the crown middle part is 4 layers of belted layer structures, promotes crown middle part rigidity, and two shoulders respectively have 1 layer of 0 degree belted layer circumference to twine and can improve shoulder intensity, avoid shoulder unrestrained frequent deflection deformation to cause shoulder empty, explode the problem. The 4 layers of belted layers are paved and attached to the upper part of the zero-degree belted layer, the third belted layer, the zero-degree belted layer and the tire crown component are uniformly transited, stress concentration is reduced, and the problems of crown hollowness and furrow breakage are avoided. The structure is suitable for the tire under the condition of medium and long-distance use, can effectively control the deformation of the tire crown, has more uniform ground pressure distribution, reduces abnormal abrasion, and avoids the early damage of the tire.

Drawings

FIG. 1 is a schematic view of a tire belt structure according to an embodiment of the present invention;

FIG. 2 is a schematic representation of a conventional tire belt structure.

In fig. 1, a first belt layer; 2. a second belt layer; 3. a third belt layer; 4. a fourth belt layer; 5. a carcass; 6. an inner liner layer; 7. a crown; 8. a sidewall; a (B), a zero-degree belt ply; C. a gap.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

When the term "radial" is used, the expression relates to the radial direction of the tyre or carcass, if closer to the rotation axis of the tyre or carcass 5, the expression "radially inside"; when the term "circumferential" is used, it is expressed as the tire or carcass 5 rolling direction; when the term "tire inner" is used, it is stated that the tire is on the side closer to the rim.

When the term "tire shoulder" or "shoulder" is used, it is stated that the tire surface has a curvature in the axial direction, and the end positions of the tire lower on both sides of the tire surface at the curvature are the "tire shoulder" or "shoulder".

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1

In some embodiments of the present application, as shown in fig. 1, an all-steel radial tire is provided, comprising a tire body 5, a tire crown 7, tire shoulders, tire sidewalls 8 and a belt layer.

The tire comprises a tire body 5, a tire crown 7, a tire shoulder and a tire side 8, wherein the tire crown 7 is a surface vertical to the circular section of the tire, and when the tire is used, the tire crown 7 is in contact with the ground; the side wall 8 is the surface parallel with the circular cross section of tire, and the side wall 8 is perpendicular with the child hat 7, and the connection position of child hat 7 and side wall 8 is the tire shoulder, and the tire shoulder is vertical structure.

The tire crown 7 can improve the rigidity of the middle part of the tire crown 7 when the tire works, so that the automobile can be more stable and comfortable in the normal running process. The shoulders are usually provided with a pattern for heat dissipation and to withstand the stresses of overload when the vehicle is turning, while at the same time facilitating an increase in grip. The sidewall 8 can play a role in bearing deflection deformation, so that the cord of the tire body 5 is effectively protected from being damaged, and the sidewall 8 has good deflection resistance, puncture resistance and aging resistance.

The tire crown 7 is arranged on the outer side of the top of the tire body 5, the two tire shoulders are symmetrically connected to two sides of the tire crown 7, and the two tire sidewalls 8 are symmetrically connected to the outer sides of the tire shoulders.

The tire further comprises a belted layer which is positioned between the crown 7 and the tire body 5, wherein the belted layer comprises a first belted layer 1, a second belted layer 2, a third belted layer 3 and a fourth belted layer 4 which are arranged in the middle of the crown 7, and zero-degree belted layers A and B which are symmetrically arranged on tire shoulders.

The belt ply can effectively improve the strength of the tire shoulder, and further avoid the problems of shoulder hollowness, shoulder explosion and the like caused by the unrestrained frequent flex deformation of the shoulder. Meanwhile, the belted layer can reduce the excessive concentration of the tire pressure, and the problems of empty tire and ditch crack of the tire crown 7 are avoided. The deformation of the tire crown 7 can be effectively controlled, the ground pressure distribution can be more uniform, the abnormal abrasion is reduced, and the early damage of the tire is avoided. The zero-degree belted layer adopts high-strength, high-modulus and small-angle arranged cords as reinforcing materials, and is covered by high-definite-elongation and high-hardness sizing materials. The zero-degree belted layer can play a role in buffering impact and simultaneously can play a role in hooping the tire body 5, and the zero-degree belted layer is also a main stress component for an all-steel radial tire.

In the embodiment of the present application, the first belt layer 1 mainly serves as a transition from the carcass 5 to the belt layer, and is favorable for reducing the pressure of the carcass 5. The second belt layer 2 and the third belt layer 3 are working layers, and in the running process of the tire, the second belt layer 2 and the third belt layer 3 are mainly used for supporting the normal running of the tire and supporting the normal running of the tire when the tire is used. The fourth belt layer 4 is mainly a protective layer for protecting the first belt layer 1, the second belt layer 2 and the third belt layer 3, and ensures stable operation of the belt layers. The utility model provides a layer structure is restrainted to tire area has set up the middle belted layer of four layers, the embodiment of the utility model provides a layer structure is restrainted to tire area can strengthen the intensity and the durability of child hat 7, reduces the deformation of tire at the operation in-process to promote the load capacity and the shock resistance of tire, can reduce the shearing stress of restrainting between layer structure again simultaneously, effectively improve the high-speed durability of tire shoulder.

It should be noted that, the belt layer is mainly laminated on the forming machine, which specifically includes: attaching the first belt layer 1 to an auxiliary drum of a forming machine, attaching the surface of the second belt layer 2 to the first belt layer 1 after the first belt layer 1 is attached, attaching the surface of the third belt layer 3 to the second belt layer 2, attaching the surface of the fourth belt layer 4 to the third belt layer 3, and attaching the tread. The belt layers can be well attached and connected in sequence from the tire body to the tire crown 7 in the middle of the tire crown 7 along the radial direction by utilizing the attaching mode.

In some embodiments of the present application, two ends of the first belt layer 1 are slightly bent downward, so that two ends of the first belt layer 1 and the second belt layer 2 are isolated, and a shearing force between an end point of the first belt layer 1 and an end point of the second belt layer 2 is reduced.

The utility model discloses in novel all steel radial tire area of taking up layer structure layer, it is through taking up the radial lateral surface of layer and zero degree area and lay fibre curtain cloth area of layer and take up the layer to make the axial both ends parcel that fibre curtain cloth area was taken up the layer live the axial lateral surface of taking up the layer, thereby reduced the utility model discloses the atress size of layer is taken up to the tire, and then has weakened first area and second and has taken up between the layer, second area is taken up between layer and the third area and is taken up the layer, the shearing action of steel wire between layer and the fourth area is taken up to the third area, has effectively avoided the tire and has produced the crackle because of fatigue with the adjacent rubber of this department steel wire, and then has reduced the tire and has appeared crown and shoulder empty technical problem, has improved radial tire area and has taken up the durability and life of layer. According to the tire, the fiber cord fabric belt ply and the shoulder cushion rubber enclose together to form a closed space, the first belt ply, the second belt ply, the third belt ply, the fourth belt ply and the zero belt ply are wrapped, so that the shearing force is further reduced, the risk that the rubber adjacent to the steel wire at the position cracks due to fatigue damage is reduced, the phenomena of crown hollowness and shoulder hollowness of the radial tire are avoided, and the durability and the service life of the radial tire are further improved.

The zero-degree belted layer A (B) is circumferentially arranged at two axial ends of the third belted layer 3, the zero-degree belted layer A (B) and the third belted layer 3 are circumferentially wound to form a certain angle, the angle is 0-5 degrees, and gaps are formed between two ends of the third belted layer 3 and the zero-degree belted layer A (B) on the corresponding side, and the range of the gaps is-2-6 mm.

In some embodiments of the present application, on the basis of four belt layers, the zero-degree belt layers a (B) are respectively disposed on two sides of the third belt layer 3, and this arrangement can reduce the heat generation speed of the tire and slow down the tire rubber material destruction speed. The tire structure after changing zero degree belted layer A (B) position has increased the radial rigidity of tire, and ground connection load performance when having improved the use of tire, simultaneously, the increase of ground connection area can also help promoting the travelling comfort of tire, promotes user experience, and this kind of design has reduced the stress strain of tire effectively, has slowed down the strain energy production speed of tire belted layer extreme point and the fatigue damage speed of tire shoulder sizing material.

In some embodiments of this application, the heliciform is twined by additional steel cord by the third layer area restraints 3 and the fourth layer area restraints two shoulder area restraints 4, the steel cord is one at least, just the steel cord is the high extension steel cord, the utility model discloses set up four layers in tire hat 7 and restrainted, make each layer area of hat 7 restraint layer all be the bearing work layer, promoted the bearing strength of tire hat 1 portion, improved the safe multiple of tire. Meanwhile, the design of the direction staggered type between the belted layer and the tire circumferential direction can obviously reduce the shear strain energy between crossed belted layers and reduce the heat generation of the tire shoulder, thereby improving the durability, high-speed performance and service life of the tire. The design mode that the steel cords of the two shoulder belted belts of the third belted belt 3 and the fourth belted belt 4 are wound into a spiral shape can restrain the expansion of the tire crown 7 in the inflated state of the tire, so that the grounding shape of the tire is closer to a rectangle, the pressure distribution of the grounding part is more uniform, eccentric wear can be inhibited, and the wear resistance of the tire is improved. On the spiral structure of the third layer of belt 3, the two shoulder belt belts can improve the strength of the tire shoulder, inhibit the expansion of the tire shoulder, reduce the strain of the shoulder, improve the bearing performance of the tire, avoid the lap joint of the circumferential belt belts, avoid excessive circumferential steel wire ends, improve the high-speed performance and the dynamic balance performance of the tire and reduce the heat generation of the tire.

Note that, a certain angle is selected from 0 to 5 ° depending on the specification and the material of the belt.

Note that the zero-degree belt layers a and B are belt names, and do not represent a constant angle of 0 ° with respect to the circumferential direction.

In some embodiments of the present application, as shown in fig. 1, the third belt layer 3 has a gap C between its two ends and the zero-degree belt layers a and B on the corresponding sides, the gap C being in the range of-2 to 6mm. In actual operation, a certain data in the range can be selected according to different specifications and the process control standard of the production process, which is not specifically limited herein.

In some embodiments of the present application, in order to further increase the strength of the belt structure, the carcass 5 is better tightened, so that the angles formed by the first belt layer 1, the second belt layer 2, the third belt layer 3 and the fourth belt layer 4 with the circumferential direction are not too large, the third belt layer 3 and the fourth belt layer 4 mainly play a role in buffering and reinforcing, and the too large angle may cause low rigidity, resulting in insufficient overall strength of the crown. In particular the angle at which the zero degree belt is circumferentially wound with the third belt 3.

In some embodiments of the present application, the first belt layer 1 and the second belt layer 2 are arranged in the same direction, the second belt layer 2 and the third belt layer 3 are arranged in a crossed manner, and the third belt layer 3 and the fourth belt layer 4 are arranged in a crossed manner, which is simple to process and convenient to operate, and simultaneously ensures the stability of the tire.

By adopting the arrangement mode, the inclination angle of the tire can be changed, the rigidity of the tire can be effectively increased, the width of the second belted layer 2 is increased, and the circumferential rigidity of the tire is increased by improving the belted layer, so that the problem of uneven circumferential width distribution of the belted layer can be solved, the generation of uneven wear is inhibited, and the wear resistance of the tire belted layer is effectively improved.

In some embodiments of the application, the two tire shoulders are respectively provided with a zero-degree belted layer A (B) which is wound in the circumferential direction, so that the strength of the shoulder can be well improved, the problems of shoulder hollowness and explosion caused by the unrestrained frequent deflection deformation of the shoulder can be avoided, and the tire tread is flat. The outer surface of the tire crown 7 is provided with a plurality of grooves which are sunken inwards along the circumferential direction of the tire, so that the friction force between the tire and the ground can be increased, the tire is prevented from slipping, and the ground grabbing force of the tire is effectively increased.

In the running process of the tire, because the running surface of the tire has a certain radian, the design of the tire belted layer can be adjusted, the stretching rate of the vulcanization shaping of the position of the zero-degree belted layer A (B) is more uniform, the restart expansion of the tire crown 7 part can be optimized, the grounding performance of the tire is further improved, the rolling resistance performance and the durability of the tire are improved, meanwhile, the damage of the anti-ditch crack performance of the tire can be effectively improved, the freedom degree of the design of the tire is increased, and the tire is not limited to a simple tire structure any more.

The first belt ply 1 wraps the axial end part of the tire belt ply, so that the deformation of the axial end part of the tire belt ply can be reduced, the adhesion between layers in the tire belt ply is improved, the shearing action between the layers is reduced, the phenomena of shoulder hollowing, shoulder cracking and the like can be effectively relieved, the durability of the tire is improved, the service life of the tire is prolonged, and the tire is particularly suitable for heavy-duty tires.

In some embodiments of the present application, the all-steel radial tire with the novel belt structure further comprises an inner liner 6, wherein the inner liner 6 comprises a transition layer, which is attached to the inner side of the tire body 5, and an air-tight layer which is attached to the inner side of the transition layer. The air-tight layer and the transition layer comprise a multilayer structure and are mainly used for enhancing the strength of the tire, a reinforced rubber layer is arranged on one side of the air-tight layer and close to the bottom area of the tire bead, the reinforced rubber layer is generated by low-heat-generation butadiene rubber and white carbon black rubber, and the first reinforced rubber layer can better prevent the phenomenon of a grinding opening of the tire at the bottom of the tire bead. Two shoulder regions are equipped with second strenghthened type glue films about the airtight layer side dorsad in the transition layer, and second strenghthened type glue film adopts low themogenic cis-butadiene to glue and white carbon black smelts gluey the formation, and the setting on second strenghthened type glue film can prevent the shoulder sky phenomenon. The width of the transition layer becomes gradually smaller. The utility model has simple, compact and reasonable structure, easy realization and no influence on the production efficiency; the shoulder part and the bottom of the tire bead are more sufficiently distributed, so that the strength is improved, and the integral bearing performance of the tire is improved; the added rubber layer has low heat generation, so that the probability of shoulder vacancy and seam allowance of the tire is reduced; since the bead bottom material is sufficient, a burr phenomenon of the bead portion can be prevented.

The end part of the inner liner is provided with an inner liner oblique notch with gradually reduced thickness from inside to outside, and the end part of the transition layer is provided with a tire transition layer oblique notch with gradually reduced thickness from outside to inside. The central line of the inner liner and the central line of the transition layer are superposed, the inner liner and the tire transition layer are bilaterally symmetrical along the respective central lines, the thicknesses of the inner liner and the transition layer are gradually reduced from the central lines to two sides, and meanwhile, the length of the transition layer is greater than that of the inner liner. The inner liner 6 in the application has a simple and compact structure, improves the tire inspection qualified rate and ensures the air tightness of the tire.

The liner 6 structure is central symmetry structure, liner 6 structure is inboard at the matrix along length direction laminating, the thickness of air-tight layer and transition layer contracts to both ends from the direction of central line respectively, thereby make the thickness of air-tight layer and transition layer reduce to both ends along the central line in proper order, the length of transition layer is greater than the length of air-tight layer, consequently, can effectively ensure that the material of liner structure in the high region of stretching is sufficient, greatly reduced the problem that the finished product tire appeared in the child, improved the tire qualification rate. The utility model provides an inner liner structure is convenient for the exhaust of inner liner roll extrusion in-process in the tire production process, has solved because the gas storage phenomenon that the step that the inner liner edge easily produced in the stack process caused, has improved the tire inspection qualification rate and has guaranteed the gas tightness of tire. By arranging the reinforcing layer structure, the rigidity and the durability of the bead part of the tire are effectively improved, the safety accidents of the crack, the burst and the like of the bead part caused by insufficient rigidity of the bead part are effectively reduced, the driving safety of the tire is ensured,

the reinforcing structure is formed by winding a rubber-coated steel wire, a steel wire joint is not generated, the problem that the steel wire joint is various is solved, stress concentration at the position is effectively avoided, the rigidity of the tire bead is further improved, and the uniformity of the performance of the tire bead is ensured.

In some embodiments of the present application, the first belt layer has a circumferential angle of 40 to 70 ° with the carcass 5, and the second, third, and fourth belt layers each have a circumferential angle of 15 to 25 ° with the carcass 5.

It should be noted that the selection of the angle in the present application is not particularly limited, but is reasonably selected according to actual requirements, and within this range, the safety performance of the tire can be well ensured, and the tire can be well protected even in high-speed driving.

In some embodiments of the present application, the width values of the second belt layer, the first belt layer, the fourth belt layer and the third belt layer are sequentially decreased progressively.

When the width of the second belt layer 2 is a, the width of the first belt layer 1 is b, the width of the third belt layer 3 is c, and the width of the fourth belt layer 4 is d, a > b > c > d.

It should be noted that, the axial width of the second belt layer 2 is the largest, so that the first belt layer 1 and the third belt layer 3 can be better staggered, the heat generation of the tire can be effectively inhibited, and the effect of reinforcing the tire can be achieved at the same time, so that the first belt layer 1 and the tire body 1 can be effectively protected, and the damage of the lower belt layer can be prevented.

In some embodiments of the present application, on the outer side in the tire radial direction near the tread equatorial plane, if the width of the region where the out-of-plane bending rigidity in the tire circumferential direction is large is too wide, the tread may vibrate unevenly, thus reducing the effect of reducing noise radiation. Thus, by having the second belt layer as the widest belt layer of the tire carcass 5, noise performance can be improved without causing a mode of vibration of the entire tread. Generally, a lateral force generated during turning of a vehicle is absorbed by a tread rubber portion of a tread, and a tread contact surface of the tread is strongly pressed against a road surface, thereby obtaining a turning ability. Therefore, regarding the rigidity of the tire in the tire circumferential direction, when the load of the tire load is insufficient, the tread contact surface of the tread is not sufficiently pressed against the road surface, and the shoulder region of the tread is lifted, so that the degree of increase in cornering ability is reduced, and the tire can be kept in good stability during cornering, and the tire can be prevented from being damaged.

It should be noted that the second belt layer 2 has the largest axial width, so that the first belt layer 1 and the third belt layer 3 can be arranged to be shifted more favorably, thereby suppressing heat generation and reinforcing the tire, and at the same time, the lower first belt layer 1 and the carcass 5 can be protected to prevent damage to the lower belt layer. The utility model discloses the product is through the indoor lathe experiment of tire and outside road surface test, confirms can better restrain the tire deformation to higher speed goes. The utility model discloses the product easily realizes, under the condition that does not change current frock, just can produce, is applicable to all heavy-duty tires, is particularly useful for taking into account the high wheeled vehicle that bears the weight of high-speed travel, and the popularization and utilization that can be fine.

Example 2

In some embodiments of the present application, the first belt layer 1 and the second belt layer 2 are arranged in the same direction, the second belt layer 2 and the third belt layer 3 are arranged in a crossed manner, and the third belt layer 3 and the fourth belt layer 4 are arranged in the same direction.

It should be noted that, the belted layer is mainly laminated at the forming machine, and specifically includes: attaching the first belt layer 1 to an auxiliary drum of a forming machine, attaching the surface of the second belt layer 2 to the first belt layer 1 after the first belt layer 1 is attached, attaching the surface of the third belt layer 3 to the second belt layer 2, attaching the surface of the fourth belt layer 4 to the third belt layer 3, and attaching the tread. By the applying mode, the belt layers can be well and sequentially attached and connected from the tire body to the tire crown 7 in the middle of the tire crown 7 along the radial direction.

Example 3

In some embodiments of the present application, the first belt layer 1 and the second belt layer 2 are arranged in a crossed manner, the second belt layer 2 and the third belt layer 3 are arranged in a crossed manner, and the third belt layer 3 and the fourth belt layer 4 are arranged in a crossed manner.

By adopting the arrangement mode, the inclination angle of the tire can be changed, the rigidity of the tire can be effectively increased, the width of the second belted layer 2 is increased, the circumferential rigidity of the tire is increased by improving the belted layer, the problem that the circumferential width distribution of the belted layer is not uniform is solved, the generation of uneven wear is inhibited, and the wear resistance of the belted layer of the tire is effectively improved.

In some embodiments of the present application, two ends of the first belt layer 1 are slightly bent downward, so that two ends of the first belt layer 1 and two ends of the second belt layer 2 are isolated, and a shearing force between an end point of the first belt layer 1 and an end point of the second belt layer 2 is reduced.

Example 4

In some embodiments of the present application, the first belt layer 1 and the second belt layer 2 are arranged in a crossed manner, the second belt layer 2 and the third belt layer 3 are arranged in a crossed manner, and the third belt layer 3 and the fourth belt layer 4 are arranged in the same direction.

The utility model discloses an all-steel radial tire with a novel belted layer structure, which comprises a tire body 5, a tire crown 7, two tire shoulders, two tire sides and belted layers, wherein the belted layers comprise a first belted layer 1, a second belted layer 2, a third belted layer 3 and a fourth belted layer 4 which are arranged in the middle of the tire crown and zero belted layers symmetrically arranged on the tire shoulders; the first belt ply 1, the second belt ply 2, the third belt ply 3 and the fourth belt ply 4 are sequentially attached and connected in the middle of the crown 7 from the tire body to the crown 7 along the radial direction; the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer. The utility model discloses a tire under the long-distance service condition in being suitable for of tire can the effective control child hat warp, and ground pressure distributes more evenly, reduces unusual wearing and tearing, avoids the tire to take place to destroy in the use early stage, and the belt structure can strengthen the intensity and the durability of child hat simultaneously to promote the load capacity and the shock resistance of tire.

According to the first concept of the application, the arrangement mode of the belt layer in the middle of the tire crown is improved, the middle of the tire crown comprises a first belt layer 1, a second belt layer 2, a third belt layer 3 and a fourth belt layer 4, the first belt layer 1 and the second belt layer 2 are arranged in the same direction or in a crossed manner, the second belt layer 2 and the third belt layer 3 are arranged in a crossed manner, and the third belt layer 3 and the fourth belt layer 4 are arranged in the crossed manner or in the same direction.

According to the second concept of the application, the structure of the zero-degree belted layer is improved, the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer 3, the zero-degree belted layer and the third belted layer 3 are circumferentially wound to form a certain angle, the angle is 0-5 degrees, and meanwhile, a gap of-2-6 mm is formed between each of two ends of the third belted layer 3 and the zero-degree belted layer on the corresponding side. The mode can effectively reduce stress concentration, avoid the problems of crown hollowness and furrow cracking and prolong the service life of the tire.

According to the third concept of the present application, the width of the belt layer is improved, and the width values of the second belt layer 2, the first belt layer 1, the fourth belt layer 4, and the third belt layer 3 are sequentially decreased. The arrangement can better stagger the first belt ply 1 and the third belt ply 3, can effectively inhibit tire heat generation, and can play a role in reinforcing the tire, thereby effectively protecting the first belt ply and the tire body 5 and preventing the belt ply from being damaged.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An all-steel radial tire with a novel belt structure is characterized by comprising:

a carcass;

the tire crown is arranged on the outer side of the top of the tire body;

the two tire shoulders are symmetrically connected to the two sides of the tire crown;

the two sidewalls are symmetrically connected to the outer sides of the tire shoulders;

a belt located between the crown and the carcass;

the belt layers comprise a first belt layer, a second belt layer, a third belt layer, a fourth belt layer and a zero-degree belt layer, wherein the first belt layer, the second belt layer, the third belt layer and the fourth belt layer are arranged in the middle of the tire crown, and the zero-degree belt layer is symmetrically arranged at the tire shoulder;

the first belt layer, the second belt layer, the third belt layer and the fourth belt layer are sequentially attached and connected from the tire body to the tire crown direction in the radial direction in the middle of the tire crown;

the zero-degree belted layer is circumferentially arranged at two axial ends of the third belted layer;

the first belt layer and the second belt layer are arranged in the same direction or in a crossed manner, the second belt layer and the third belt layer are arranged in a crossed manner, and the third belt layer and the fourth belt layer are arranged in a crossed manner or in the same direction.

2. The all-steel radial tire of novel belt structure as claimed in claim 1, wherein said fourth belt is laminated on the outside of said zero-degree belt.

3. The all-steel radial tire of novel belt structure as claimed in claim 1, wherein said zero degree belt is wound circumferentially with said third belt at an angle of 0 to 5 °.

4. The all-steel radial tire with the novel belt structure as claimed in claim 1, wherein a gap is provided between both ends of the third belt and the zero-degree belt on the corresponding side, and the gap is in the range of-2 to 6mm.

5. An all-steel radial tire of novel belt structure according to any one of claims 1 to 4, characterized by further comprising:

and the inner liner is attached to the inner side of the tire body.

6. The all-steel radial tire of novel belt structure as claimed in claim 5, wherein said inner liner layer comprises:

the transition layer is attached to the inner side of the tire body;

and the air-tight layer is attached to the inner side of the transition layer.

7. The all-steel radial tire with a novel belt structure as claimed in claim 1, wherein the circumferential angle of the first belt layer to the carcass is 40 to 70 °.

8. The all-steel radial tire of a novel belt structure according to claim 7, wherein the circumferential angles of the second belt, the third belt, and the fourth belt to the carcass are all 15 to 25 °.

9. The all-steel radial tire with the novel belt structure according to claim 1, wherein the width values of the second belt layer, the first belt layer, the fourth belt layer and the third belt layer are sequentially decreased.