阅读说明：本技术 一种改进热磨损的轮胎花纹结构及轮胎 (Tire pattern structure for improving thermal wear and tire ) 是由 侯丹丹 钱浩海 黄继文 鲍黄坚 孟春亚 姜彬 张春生 卢咪咪 于 2021-07-05 设计创作，主要内容包括：本发明涉及轮胎领域,尤其是一种改进热磨损的轮胎花纹结构及轮胎,在轮胎花纹展开为平面状态下,第一花纹块组和第二花纹块组结构相同并呈反向交错设置；第一花纹块组包括位于胎面内侧的六边形花纹块和位于胎面外侧的五边形花纹块；第一花纹块组和第二花纹块组关于第一花纹块组中的六边形花纹块和第二花纹块组中的六边形花纹块对应顶点连线的中点呈中心对称；六边形花纹块左右对称,六边形花纹块的上侧边和下侧边为水平设置；位于六边形花纹块上侧的三条边长度相等,位于六边形花纹块下侧的三条边长度相等,上侧的三条边长度之和与下侧的三条边长度之和不同；本专利改变花纹块的形状,减少花纹块的挤压变形,提高轮胎寿命。(The invention relates to the field of tires, in particular to a tire pattern structure for improving thermal wear and a tire, wherein a first pattern block group and a second pattern block group have the same structure and are arranged in a reverse staggered manner when a tire pattern is unfolded to be in a plane state; the first block group comprises hexagonal blocks positioned on the inner side of the tread and pentagonal blocks positioned on the outer side of the tread; the first pattern block group and the second pattern block group are centrosymmetric about the middle point of the connecting line of the corresponding vertexes of the hexagonal pattern blocks in the first pattern block group and the hexagonal pattern blocks in the second pattern block group; the hexagonal pattern blocks are bilaterally symmetrical, and the upper side and the lower side of each hexagonal pattern block are horizontally arranged; the three side lengths on the upper side of the hexagonal pattern block are equal, the three side lengths on the lower side of the hexagonal pattern block are equal, and the sum of the three side lengths on the upper side is different from the sum of the three side lengths on the lower side; this patent changes the shape of decorative pattern piece, reduces the extrusion deformation of decorative pattern piece, improves the tire life-span.)

1. A tire pattern structure for improving thermal wear is characterized by comprising a central pattern groove (1) which is positioned in the center of a tread and extends along the circumferential direction of a tire in a broken line manner, wherein a first block group and a second block group which extend along the circumferential direction of the tire are respectively arranged on the left side and the right side of the central pattern groove (1); the longitudinally adjacent first pattern block groups and the longitudinally adjacent second pattern block groups are separated by transverse pattern grooves (2); the inner ends of the transverse grooves (2) are communicated with the central groove (1), and the outer ends are connected to the outer side of the tire; the central pattern groove (1) and the transverse pattern grooves (2) both comprise a plurality of continuous groove segments;

when the tire pattern is unfolded to be in a plane state, the first pattern block group and the second pattern block group have the same structure and are arranged in a reverse staggered mode; the first block group comprises hexagonal blocks (3) positioned on the inner side of the tread and pentagonal blocks (4) positioned on the outer side of the tread; the first pattern block group and the second pattern block group are centrosymmetric about the middle point of the connecting line of the corresponding vertexes of the hexagonal pattern blocks (3) in the first pattern block group and the hexagonal pattern blocks in the second pattern block group;

the hexagonal pattern blocks (3) and the pentagonal pattern blocks (4) are separated by longitudinal grooves (5); the upper end and the lower end of the longitudinal groove (5) are communicated with the transverse groove (2);

the hexagonal pattern blocks (3) are bilaterally symmetrical, and the upper side edge and the lower side edge of each hexagonal pattern block (3) are horizontally arranged; the length of three sides on the upper side of the hexagonal pattern block (3) is equal, the length of three sides on the lower side of the hexagonal pattern block (3) is equal, but the sum of the lengths of the three sides on the upper side of the hexagonal pattern block (3) is different from the sum of the lengths of the three sides on the lower side of the hexagonal pattern block (3);

the upper right side and the lower right side of the hexagonal pattern blocks (3) are surrounded by two groove segments of the central pattern groove (1); the upper parts of the left sides and the upper parts of the hexagonal pattern blocks (3) are surrounded by two groove segments of the transverse pattern grooves (2) positioned above the hexagonal pattern blocks (3), and the lower parts of the left sides of the hexagonal pattern blocks (3) are surrounded by the longitudinal grooves (5); the lower part of the hexagonal pattern block (3) is surrounded by a section of groove segment of the transverse pattern groove (2) positioned below the hexagonal pattern block (3);

the upper part of the pentagonal pattern blocks (4) is surrounded by a section of groove segments of the transverse pattern grooves (2) positioned above the pentagonal pattern blocks (4); the upper part of the right side of the pentagonal pattern block (4) is surrounded by a longitudinal groove (5); the right lower part and the lower part of the edge-shaped pattern blocks (4) are surrounded by two groove segments of the transverse pattern groove (2) positioned below the edge-shaped pattern blocks (4).

2. A tread pattern structure for improving thermal wear according to claim 1, wherein three sides of the upper side of the hexagonal block (3) are all 33mm and three sides of the lower side of the hexagonal block (3) are all 45 mm.

3. A sipe structure to improve thermal wear according to claim 1, characterised by a central groove (1) depth of 11mm and transverse grooves (2) depth of 21 mm.

4. The tread pattern structure for improving thermal wear of claim 1, wherein the bottom of the central groove (1) is provided with a plurality of heat dissipation ports (6) extending towards the inside of the tread, the heat dissipation ports (6) are cylindrical, and the diameter of each heat dissipation port (6) is 4.5-5.5 mm and the depth of each heat dissipation port is 5 mm.

5. A tyre tread structure for improving thermal wear according to claim 1, wherein the hexagonal blocks (3) of the first and second blocks are each provided with a transverse small steel groove (7), the small steel groove (7) having a length of 24mm, a width of 3mm and a depth of 3 mm.

6. A tread pattern structure for hot wear improvement, as claimed in claim 1, wherein the longitudinal grooves (5) have a U-shaped section with a depth of 10 to 12 mm.

7. The tire tread pattern structure for improving thermal wear of claim 1, wherein a plurality of stone discharging studs (8) are arranged in the transverse groove (2) along the groove direction, the length of each stone discharging stud (8) is 10mm, the width of each stone discharging stud (8) is 4mm, the height of each stone discharging stud is 4-5 mm, and the distance between each stone discharging stud and each stone discharging stud is 3-4 mm.

8. A sipe structure to improve thermal wear according to claim 1, characterised in that the transverse grooves (2) increase in width from the inside to the outside of the groove segments.

9. A tyre tread structure with improved thermal wear according to claim 1, wherein the outer side faces of the pentagonal blocks (4) in the first and second blocks are provided with U-shaped grooves (9) for generating heat.

10. A tire characterized by having a tread pattern of a thermal wear-modified tread pattern structure as claimed in claim 1.

Technical Field

The invention relates to the field of tires, in particular to a tire pattern structure for improving thermal wear and a tire.

Background

The tire tread is related to traction, braking, wear resistance, drainage, noise reduction and other properties. In designing the tread pattern of the truck tire, factors such as the road condition, the load capacity, the driving speed and the climate condition are generally considered. Under the normal condition, the longitudinal pattern has good guidance and drainage performance, low noise and small rolling resistance during high-speed running; the transverse pattern driving performance and the braking performance are better than those of the longitudinal pattern, but the lateral sliding is larger than that of the longitudinal pattern, the noise is high, and the rolling resistance is large; the block-shaped tire has the best performance of dynamic performance, the tire patterns are arranged in blocks, and when the vehicle runs on snow or muddy ground, the patterns are deeply embedded into the snow or the muddy ground, and the vehicle generates driving force. In the current market environment in China, severe use conditions with high partial air pressure and high load exist, such as mine or non-pavement short-distance transportation working conditions. The tire under the service condition is mostly a blocky patterned tire so as to ensure the driving braking performance, the wear resistance and the like. However, since pattern saturation is high and heat dissipation performance is insufficient, it is easy to cause over-high heat generation to cause defects. In addition, the design of the pattern blocks is unreasonable, and the problems of block falling, ditch cracking and the like can be caused on a severe road surface.

Chinese utility model patent (publication No. CN204249741U, published as 20150408) discloses a tread pattern structure of a medium and short distance all-steel truck radial tire, which is characterized in that a plurality of pattern block groups are distributed on the tread of the tire, the pattern block groups comprise an inner pattern block group distributed along the circumferential direction of the tire and an outer pattern block group distributed along the circumferential direction of the tire, the inner or outer pattern block groups are symmetrically and alternately arranged along the central line of the tread and form a through step-shaped transverse pattern groove, a transverse groove is gradually widened from the center of the tread to the tire shoulder, and a rubber nail is arranged at the bottom of the groove; the inner pattern blocks and the outer pattern blocks are connected by reinforcing ribs. The utility model discloses can promote the tractive ability of tire, reduce the ditch end and press from both sides the emergence that stone and ditch end split.

The block shape is likely to be deformed by long-term compression, which leads to a reduction in the life of the tire.

Disclosure of Invention

In order to solve the above problems, the present invention provides a tire pattern structure with improved thermal wear, which changes the shape of the pattern block, reduces the extrusion deformation of the pattern block, reduces the thermal wear of the tire, and prolongs the service life of the tire.

For the purpose of the invention, the following technical scheme is adopted for implementation:

a tire pattern structure for improving thermal wear comprises a central pattern groove which is positioned in the center of a tread and extends along the circumferential direction of a tire in a broken line manner, wherein a first block group and a second block group which extend along the circumferential direction of the tire are respectively arranged on the left side and the right side of the central pattern groove; the longitudinally adjacent first pattern block groups and the longitudinally adjacent second pattern block groups are separated by transverse pattern grooves; the inner ends of the transverse grooves are communicated with the central groove, and the outer ends are connected to the outer side of the tire; the central groove and the transverse grooves each comprise a plurality of continuous groove segments; when the tire pattern is unfolded to be in a plane state, the first pattern block group and the second pattern block group have the same structure and are arranged in a reverse staggered mode; the first block group comprises hexagonal blocks positioned on the inner side of the tread and pentagonal blocks positioned on the outer side of the tread; the first pattern block group and the second pattern block group are centrosymmetric about the middle point of the connecting line of the corresponding vertexes of the hexagonal pattern blocks in the first pattern block group and the hexagonal pattern blocks in the second pattern block group; the hexagonal pattern blocks and the pentagonal pattern blocks are separated by longitudinal grooves; the upper end and the lower end of the longitudinal groove are communicated with the transverse groove; the hexagonal pattern blocks are bilaterally symmetrical, and the upper side and the lower side of each hexagonal pattern block are horizontally arranged; the three side lengths on the upper side of the hexagonal pattern block are equal, the three side lengths on the lower side of the hexagonal pattern block are equal, but the sum of the three side lengths on the upper side of the hexagonal pattern block is different from the sum of the three side lengths on the lower side of the hexagonal pattern block; the upper right side and the lower right side of the hexagonal pattern blocks are surrounded by two groove segments of the central pattern groove; the upper part and the upper part of the left side of the hexagonal pattern block are surrounded by two groove segments of a transverse pattern groove positioned above the hexagonal pattern block, and the lower part of the left side of the hexagonal pattern block is surrounded by a longitudinal groove; the lower part of the hexagonal pattern block is surrounded by a section of groove segment of the transverse pattern groove positioned below the hexagonal pattern block; the upper part of the pentagonal pattern blocks is surrounded by a section of groove segments of the transverse pattern grooves positioned above the pentagonal pattern blocks; the upper part of the right side of the pentagonal pattern block is surrounded by a longitudinal groove; the right lower side and the lower side of the edge-shaped pattern blocks are surrounded by two groove segments of a transverse pattern groove positioned below the edge-shaped pattern blocks.

Preferably, the three sides of the upper side of the hexagonal pattern block are all 33mm, and the three sides of the lower side of the hexagonal pattern block are all 45 mm.

Preferably, the central groove depth is 11mm and the lateral groove depth is 21 mm.

Preferably, the bottom of the central pattern groove is provided with a plurality of heat dissipation openings extending towards the inner part of the tread, the heat dissipation openings are cylindrical, the diameter of each heat dissipation opening is 4.5-5.5 mm, and the depth of each heat dissipation opening is 5 mm.

Preferably, the hexagonal blocks in the first block group and the second block group are provided with transverse small rigid piece grooves, and the small rigid piece grooves are 24mm in length, 3mm in width and 3mm in depth.

Preferably, the cross section of the longitudinal groove is U-shaped, and the depth is 10-12 mm.

As preferred, set up a plurality of row's stone glue nail along the tread groove direction in the horizontal tread groove, arrange the length of stone glue nail and be 10mm, the width is 4mm, highly is 4~5mm, and the interval is 3~4 mm.

Preferably, the transverse grooves increase in width from the inner to the outer groove segments.

Preferably, the outer side surfaces of the pentagonal blocks in the first block group and the second block group are provided with U-shaped grooves for generating heat.

A tire, the tread pattern of this tire adopts a kind of tire pattern structure of improving the thermal wear mentioned above.

In conclusion, the invention has the advantages that: the structure of two rows of hexagonal pattern blocks in the middle is extrusion-resistant, the deformation of the tread pattern blocks can be reduced, the stress strain is reduced, and the abrasion life of the tire is prolonged. The heat dissipation port enables the heat accumulated in the tire tread to be dissipated in time, other defects caused by overhigh heat generation are avoided, and the heat generation performance is greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of a tire pattern.

Fig. 3 is a schematic view of the structure at a-a in fig. 1.

Fig. 4 is a schematic structural view at B-B in fig. 1.

Fig. 5 is a schematic view of the structure at C-C in fig. 1.

Fig. 6 is a schematic view of the structure at D-D in fig. 1.

Fig. 7 is a schematic view of the structure at E-E in fig. 1.

FIG. 8 is a schematic view of the structure at H-H in FIG. 1.

FIG. 9 is a schematic view of the structure at I-I in FIG. 1.

Detailed Description

A tire having a tread with a tread pattern that improves thermal wear.

As shown in fig. 1 to 9, a tire pattern structure for improving thermal wear includes a center groove 1 located at the center of a tread and extending in a broken line in a tire circumferential direction, and a first block group and a second block group extending in the tire circumferential direction are provided on both left and right sides of the center groove 1, respectively. The longitudinally adjacent first block groups and the longitudinally adjacent second block groups are separated by transverse grooves 2. The lateral grooves 2 have inner ends communicating with the central groove 1 and outer ends connected to the outside of the tire. The central and transverse grooves 1, 2 each comprise a plurality of continuous groove segments. The central grooves 1 have a depth of 11mm and the transverse grooves 2 have a depth of 21 mm. The bottom of central tread groove 1 sets up a plurality of thermovents 6 that extend to tread inside, and thermovent 6 is cylindricly, and the diameter of thermovent 6 is 4.5~5.5mm, and the degree of depth is 5 mm. The heat dissipation port 6 can timely dissipate heat accumulated in the tire tread, avoid other defects caused by overhigh heat generation, and greatly improve the heat generation performance.

When the tire pattern is unfolded to be in a plane state, the first pattern block group and the second pattern block group have the same structure and are arranged in a reverse staggered mode. The first block group includes hexagonal blocks 3 located on the inner side of the tread and pentagonal blocks 4 located on the outer side of the tread. The first block group and the second block group are centrosymmetric about the midpoint of the connecting line of the corresponding vertexes of the hexagonal blocks 3 in the first block group and the hexagonal blocks in the second block group. The hexagonal blocks 3 and the pentagonal blocks 4 are separated by longitudinal grooves 5. The upper and lower ends of the longitudinal grooves 5 are communicated with the transverse grooves 2. The section of the longitudinal groove 5 is U-shaped, and the depth is 10-12 mm. The hexagonal pattern blocks 3 are bilaterally symmetrical, and the upper side edge and the lower side edge of the hexagonal pattern blocks 3 are horizontally arranged. The lengths of three sides on the upper side of the hexagonal pattern block 3 are equal, the lengths of three sides on the lower side of the hexagonal pattern block 3 are equal, but the sum of the lengths of three sides on the upper side of the hexagonal pattern block 3 is different from the sum of the lengths of three sides on the lower side of the hexagonal pattern block 3. Three side lengths of the upper side of the hexagonal pattern block 3 are all 33mm, and three side lengths of the lower side of the hexagonal pattern block 3 are all 45 mm. The hexagonal pattern blocks 3 are designed to resist extrusion, so that the deformation of the tread pattern blocks can be reduced, the stress strain is reduced, and the abrasion life of the tire is prolonged.

The right upper and right lower sides of the hexagonal blocks 3 are surrounded by two groove segments of the center groove 1. The upper and left upper sides of the hexagonal blocks 3 are surrounded by two groove segments of the transverse grooves 2 located above the hexagonal blocks 3, and the left lower side of the hexagonal blocks 3 is surrounded by the longitudinal grooves 5. The lower side of the hexagonal blocks 3 is surrounded by a groove segment of the lateral groove 2 located below the hexagonal blocks 3.

The upper side of the pentagonal blocks 4 is surrounded by a groove segment of the lateral groove 2 located above the pentagonal blocks 4. The upper right side of the pentagonal blocks 4 is surrounded by a longitudinal groove 5. The right lower side of the edge-shaped pattern blocks 4 is surrounded by two groove segments of the transverse pattern grooves 2 which are positioned below the edge-shaped pattern blocks 4.

The hexagonal pattern blocks 3 in the first pattern block group and the second pattern block are respectively provided with a transverse small rigid sheet groove 7, the length of each small rigid sheet groove 7 is 24mm, the width of each small rigid sheet groove 7 is 3mm, and the depth of each small rigid sheet groove 7 is 3 mm. The small steel sheet grooves 7 are beneficial to puncturing a water film and increasing the traction force of the wetland.

Set up a plurality of row's stone along the tread groove direction and glue nail 8 in the horizontal tread groove 2, arrange the stone and glue the length of nail 8 and be 10mm, the width is 4mm, highly is 4~5mm, and the interval is 3~4 mm. The stone discharging rubber nail 8 is beneficial to discharging stones and protecting the bottom of the tire ditch. The width of the groove section of the transverse groove 2 from inside to outside is increased, so that the soil and the stones can be further conveniently discharged.

The outer side surfaces of the pentagonal pattern blocks 4 in the first pattern block group and the second pattern block are provided with U-shaped grooves 9 for generating heat, so that high-speed heat generation is reduced, and thermal wear is improved.