CN217804188U

CN217804188U - Tire pattern structure capable of improving thermal wear and tire

Info

Publication number: CN217804188U
Application number: CN202121519664.0U
Authority: CN
Inventors: 侯丹丹; 钱浩海; 黄继文; 鲍黄坚; 孟春亚; 姜彬; 张春生; 卢咪咪
Original assignee: Zhongce Rubber Group Co Ltd
Current assignee: Zhongce Rubber Group Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-11-15
Anticipated expiration: 2031-07-05

Abstract

The utility model 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 way when the 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.

Description

Tire pattern structure for improving thermal wear and tire

Technical Field

The utility model belongs to the technical field of the tire and specifically relates to a improve tire pattern structure and tire of thermal wear.

Background

The tire tread relates 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 domestic market environment, severe use conditions with high partial air pressure and high load exist, such as mines 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 the pattern saturation is high and the heat dissipation performance is poor, the defect is easily caused by over-high heat generation. 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: 20150408) discloses a tread pattern structure of a medium-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 distributed along the central line of the tread and form a through step-shaped transverse pattern groove, the transverse groove is gradually widened from the center of the tread to the shoulder, and a glue 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 pressing, which leads to a reduction in the life of the tire.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide an improve tire pattern structure of thermal wear, change the shape of decorative pattern piece, reduce the extrusion deformation of decorative pattern piece, reduce tire thermal wear, improve the tire life-span.

For the purpose of the utility model, the following technical proposal 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 lower part of the right side of the pentagonal pattern blocks is surrounded by two groove segments of the transverse pattern grooves below the pentagonal 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 45mm.

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

Preferably, the bottom of the central groove is provided with a plurality of radiating ports extending towards the interior of the tread, the radiating ports are cylindrical, the diameter of each radiating port is 4.5-5.5 mm, and the depth of each radiating port is 5mm.

Preferably, the hexagonal blocks in the first block group and the second block group are respectively 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 to 12mm.

Preferably, a plurality of stone-discharging rubber nails are arranged in the transverse pattern groove along the pattern groove direction, the length of each stone-discharging rubber nail is 10mm, the width of each stone-discharging rubber nail is 4mm, the height of each stone-discharging rubber nail is 4-5 mm, and the distance between the stone-discharging rubber nails 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.

To sum up, the utility model 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 isbase:Sub>A schematic view of the structure atbase:Sub>A-base:Sub>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 grooves 1 and the lateral grooves 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 21mm. The bottom of the central pattern groove 1 is provided with a plurality of heat dissipation ports 6 extending towards the interior of the tread, the heat dissipation ports 6 are cylindrical, the diameter of each heat dissipation port 6 is 4.5-5.5 mm, and the depth of each heat dissipation port 6 is 5mm. 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 inside the tread and pentagonal blocks 4 located outside the tread. The first block group and the second block group are centrosymmetric about the midpoint of the connection 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 groove 5 are communicated with the transverse grooves 2. The section of the longitudinal groove 5 is U-shaped, and the depth is 10 to 12mm. 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. The length of three sides at the upper side of the hexagonal pattern block 3 is 33mm, and the length of three sides at the lower side of the hexagonal pattern block 3 is 45mm. 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 part and the left upper part of the hexagonal pattern blocks 3 are surrounded by two groove segments of the transverse pattern grooves 2 which are positioned above the hexagonal pattern blocks 3, and the left lower part of the hexagonal pattern 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 lower right side and the lower side of the pentagonal pattern blocks 4 are surrounded by two groove segments of the transverse pattern grooves 2 positioned below the pentagonal 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 3mm. The small steel sheet grooves 7 are beneficial to puncturing a water film and increasing the traction force of the wetland.

A plurality of stone-discharging rubber nails 8 are arranged in the transverse pattern groove 2 along the pattern groove direction, the length of each stone-discharging rubber nail 8 is 10mm, the width of each stone-discharging rubber nail is 4mm, the height of each stone-discharging rubber nail is 4-5 mm, and the distance between the stone-discharging rubber nails 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.

Claims

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 grooves (1) and the transverse 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 lengths of the three sides positioned on the upper side of the hexagonal pattern block (3) are equal, the lengths of the three sides positioned on the lower side of the hexagonal pattern block (3) are equal, but the sum of the lengths of the three sides positioned on the upper side of the hexagonal pattern block (3) is different from the sum of the lengths of the three sides positioned 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 lower part of the right side of the pentagonal pattern block (4) is surrounded by two groove segments of the transverse pattern groove (2) positioned below the pentagonal pattern block (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 each 33mm in length and three sides of the lower side of the hexagonal block (3) are each 45mm in length.

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 21mm.

4. The tire 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 tire tread, the heat dissipation ports (6) are cylindrical, the diameter of each heat dissipation port (6) is 4.5-5.5 mm, and the depth of each heat dissipation port is 5mm.

5. A tire tread structure for improving thermal wear according to claim 1, wherein the hexagonal blocks (3) in the first block group and the second block group are each provided with a small lateral rib groove (7), and the small rib groove (7) has a length of 24mm, a width of 3mm and a depth of 3mm.

6. A sipe structure improving thermal wear according to claim 1, characterised in that the longitudinal grooves (5) have a U-shaped cross section with a depth of 10 to 12mm.

7. The tire tread structure for improving thermal wear according to 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 to 5mm, and the distance between the stone discharging studs is 3 to 4mm.

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.