CN218084960U - Tyre for vehicle - Google Patents

Abstract

The utility model belongs to the technical field of tires, and relates to a tire, which comprises a tire pattern, wherein the tire pattern comprises a plurality of transverse main grooves and longitudinal auxiliary grooves, the transverse main grooves are distributed at equal intervals along the circumferential direction of the tire tread and are arranged at two sides of the central line of the tire tread in a staggered manner, the transverse main grooves at two sides are in central symmetry about the central line of the tire tread, transverse pattern blocks are arranged between the transverse main grooves, and the transverse pattern blocks are distributed at equal intervals along the circumferential direction of the tire tread; the longitudinal auxiliary grooves are arranged on the transverse pattern blocks, two ends of each longitudinal auxiliary groove are communicated with the transverse main grooves, each longitudinal auxiliary groove comprises a first longitudinal auxiliary groove and a second longitudinal auxiliary groove, and the transverse pattern blocks are divided into a plurality of small polygonal pattern blocks by the first longitudinal auxiliary grooves and the second longitudinal auxiliary grooves. This tire has novel well short distance drive with long-life lorry tire decorative pattern structure, compromises the reinforcing midway good road surface high speed down the heat dissipation resistant abnormal wear performance and improves the resistant thorn on the bad road surface of short distance and pricks the piece performance, realizes tire life's promotion, has reduced the freight transportation cost.

Description

Tyre for vehicle

Technical Field

The utility model belongs to the technical field of the tire, concretely relates to tire.

Background

With the more severe control of vehicle overload in China, the use conditions related to tires, such as vehicle types, driving road conditions, loads, driving speeds and the like, in medium and short distance freight markets are changed. The vehicle type is converted from a heavy-load dump truck to a standard load version, the road surface condition becomes better, the whole road surface is good in the midway, the vehicle load is gradually converted into the standard load, and in the face of the changes, the medium-short distance freight transport practitioner can accelerate the driving speed, increase the transportation times and the continuous driving time to achieve the economic benefit increased due to the overload before. The above changes cause the performance requirements of the tire to change, and particularly, the driving tire serving as the only component for transmitting the torque power of the whole vehicle needs to have excellent traction and braking effects after the use conditions are changed, and needs to have excellent heat dissipation performance of the tire crown part, durability and abrasion performance, that is, the service life of the tire needs to be prolonged.

In order to obtain a tire with long service life, the durable life of a tire crown is prolonged by means of methods such as reducing deformation and heat generation through structural innovation, improving rubber heat resistance through formula innovation, enhancing heat dissipation performance of the tire crown through pattern innovation and the like in the industry. In the prior art, chinese patent CN217022083U discloses a high mileage and large driving force all-steel radial tire, the tread pattern of which includes a zigzag-shaped longitudinal groove, the longitudinal groove divides the tread pattern into a plurality of strip-shaped blocks, and the strip-shaped blocks are provided with three-dimensional steel sheet patterns. The zigzag longitudinal grooves improve the driving force of the tire, and the pattern rigidity distribution of each strip-shaped block is optimized, so that the abrasion of the tire surface is more uniform, and the driving mileage is higher; the three-dimensional steel sheet patterns can enable the strip-shaped blocks to be mutually occluded and supported in the driving process, so that the slippage of the tire tread is reduced, and the abrasion performance and the wet performance of the tire are improved; the optimization of the outer contour of the tire tread improves the rigidity of the tire tread and improves the abrasion performance and the driving force of the tire. Chinese patent CN206186696U discloses a driving wheel tire pattern suitable for a hybrid road surface, wherein a first pattern block, a second pattern block and a third pattern block are connected with each other in a zigzag manner, a transverse pattern groove is arranged between adjacent pattern blocks, and the tire pattern further comprises a plurality of sipes. The design of the pattern of the tire shoulder part adopts an open second tire shoulder pattern groove so as to ensure that the tire has better maneuverability under the condition of good driving performance and improve the service life of the tire; the closed first shoulder groove is added to the shoulder part, so that the heat dissipation performance of the shoulder is enhanced, the durability of the tire in a bad use condition is enhanced, the heat dissipation is increased due to the arrangement of the sipes and the reinforcing ribs, and meanwhile, the pattern blocks can be prevented from being torn.

However, the tire pattern design in the above prior art only aims at improving the service life of the tire under a single service condition of the medium-short distance driving tire, and cannot meet the performance requirements of heat dissipation, abnormal wear resistance and puncture and block dropping resistance of a midway good road surface and a short-distance bad road surface at the same time, so how to improve and meet the performance of the tire through the pattern design and meet the performance requirements of the medium-short distance driving tire is a technical problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an above-mentioned problem that exists among the solution prior art has proposed a tire, and this tire has novel well short distance drive with long-life lorry tire decorative pattern structure, and this decorative pattern structure compromises the reinforcing midway good road surface heat dissipation under high speed and is able to bear or endure the abnormal wear performance and improve the resistant thorn that the short distance worried the road surface and prick and fall a performance, realizes tire life's promotion, has reduced the freight transportation cost.

The technical scheme of the utility model is that:

a tire comprises a tire pattern, wherein the tire pattern comprises a plurality of transverse main grooves and longitudinal auxiliary grooves, the transverse main grooves are arranged at equal intervals along the circumferential direction of a tire tread and are arranged on two sides of the center line of the tire tread in a staggered mode, the transverse main grooves on two sides are centrosymmetric about the center line of the tire tread, transverse pattern blocks are arranged between the transverse main grooves, and the transverse pattern blocks are arranged at equal intervals along the circumferential direction of the tire tread; the longitudinal auxiliary grooves are arranged on the transverse pattern blocks, two ends of each longitudinal auxiliary groove are communicated with the transverse main grooves, each longitudinal auxiliary groove comprises a first longitudinal auxiliary groove and a second longitudinal auxiliary groove, and the transverse pattern blocks are divided into a plurality of small polygonal pattern blocks by the first longitudinal auxiliary grooves and the second longitudinal auxiliary grooves.

Furthermore, the dislocation distance of the transverse main grooves on the left side and the right side of the central line of the tread is 20-25 mm, the groove width of the transverse main grooves is gradually increased from the direction from the central line of the tread to the tire shoulder, and the section structure of the transverse main grooves is in an arc-shaped asymmetric V shape at the groove bottoms.

Furthermore, the transverse main groove is a zigzag groove and is provided with three different bending angles, the bending angles in the direction from the central line of the tire tread to the tire shoulder are 135-140 degrees, 120-126 degrees and 130-135 degrees in sequence, and the arrangement of the bending angles enables the tire to provide more uniform driving braking force when being grounded.

Furthermore, the transverse pattern blocks are symmetrically arranged on two sides of the central line of the tread and are arranged in a staggered manner, each transverse pattern block is provided with a first longitudinal auxiliary groove and two second longitudinal auxiliary grooves, the first longitudinal auxiliary grooves and the second longitudinal auxiliary grooves are arranged at intervals and divide the transverse pattern block into four small polygonal pattern blocks, and the small polygonal pattern blocks sequentially comprise a fourth pattern block, a third pattern block, a second pattern block and a first pattern block along the central line of the tread towards the direction of the tire shoulder.

Furthermore, the edge part of the polygonal small pattern block connected with the transverse main groove is of a multi-section arc structure and comprises an arc with the radius of 0.8-1.5 and an arc with the radius of 1.5-2.

Furthermore, the section of the first longitudinal auxiliary groove is in a symmetrical V shape with the arc-shaped groove bottom, the groove wall is not bent and has an included angle of 9-12 degrees with the longitudinal direction, the groove width is 6-8 mm, and the groove depth is 0.6 times of the depth of the transverse main groove; the second longitudinal auxiliary groove is zigzag and arranged on two sides of the first longitudinal auxiliary groove, the groove width of the second longitudinal auxiliary groove is 3-5 mm, and the groove depth is 1/3 of the depth of the transverse main groove.

Further, the position of the second longitudinal auxiliary groove on the transverse pattern block is arranged in the end area of the belt layer with the maximum tire deformation heat generation, and the tire pattern further comprises the second longitudinal auxiliary groove arranged at the position of the center line of the tire surface; and a heat dissipation hole slot assembly is arranged in the second longitudinal auxiliary groove.

Furthermore, the heat dissipation hole slot assembly comprises a plurality of heat dissipation hole slots arranged at equal intervals and a connection slot for connecting adjacent heat dissipation hole slots, and the heat dissipation hole slot assembly is arranged at the bottom of the slot along the shape bending trend of the second longitudinal auxiliary slot, namely the heat dissipation hole slot assembly is arranged in parallel with the second longitudinal auxiliary slot, and the length of the heat dissipation hole slot assembly is 2/3 of the length of the second longitudinal auxiliary slot; wherein, the diameter of the heat dissipation hole groove is 2/3 of the width of the second longitudinal auxiliary groove, and the depth of the heat dissipation hole groove is 2-3 times of the depth of the second longitudinal auxiliary groove; the width of the connecting groove is 1/3 of the width of the second longitudinal auxiliary groove, and the depth of the connecting groove is 1.5-2.5 times of the depth of the second longitudinal auxiliary groove.

The rubber rib is a convex rubber block which is designed by bending a plurality of sections, the rubber rib is obliquely arranged at the center line of the tread and is used for connecting adjacent transverse main grooves at two sides of the center line of the tread, the vertical distance between the outer edge of the rubber rib and the center line of the tread is 6-8 mm, and the end part of the transverse main groove close to the center line of the tread is connected with two ends of the rubber rib.

Furthermore, a plurality of wedge-shaped stone removing rubber tables are arranged at the bottom of the transverse main groove, the height of each stone removing rubber table is arranged from low to high along the direction from the tire shoulder to the center of the tire tread, the height of the higher side of the stone removing rubber table is 1/5 of the depth of the transverse main groove, and the height of the lower side of the stone removing rubber table is 1/6 of the depth of the transverse main groove.

The utility model has the advantages that:

(1) The utility model ensures that the transverse grooves are effectively driven sufficiently in the tread grounding area through the arranged transverse main grooves of the spider leg type which are distributed in a rotating and staggered way at the left and right centers, can more effectively transfer the torque force of the vehicle and provide stronger and more uniform traction and braking performance; meanwhile, the width of the transverse main groove is gradually increased along the direction from the center of the tread to the tire shoulder, the transverse main groove is in a horn mouth shape with a narrow inner part and a wide outer part, and a groove bottom wedge-shaped stone removing rubber table is matched, so that foreign matters are more easily removed, the groove bottom self-cleaning performance is better, the groove bottom damage is prevented, and the puncture resistance and the service life of the tire during running on a short road with bad road surface are improved;

(2) By arranging the plurality of longitudinal auxiliary grooves, the transverse pattern blocks are divided into a plurality of small irregular polygonal pattern blocks which are arranged in a central rotation staggered manner and have the same area, the integral rigidity distribution of the tire crown part is homogenized, the ground pressure of the tire tread is more uniform, and meanwhile, the grooves which are the same in length and breadth can promote the flowing heat dissipation of airflow among the pattern blocks; through the second longitudinal auxiliary groove arranged in the tire deformation heat generation maximum belt ply end area A and the tire crown middle area B with the maximum stress and the heat dissipation hole slot assembly contained in the second longitudinal auxiliary groove, the consistency of the tire crown formula and structure with the history is ensured, meanwhile, the heat dissipation effect on the tire crown part, particularly the end area and crown of the belt ply structure is further enhanced, and the endurance life of the tire crown under the high-speed condition of a good road surface midway is prolonged.

(3) The angle of the groove wall of the transverse main groove of the utility model gradually changes along the direction from the tread center to the tire shoulder, and is matched with the design of the multi-section arc edge part of the polygonal small pattern block, thereby reducing the incidence rate of abnormal wear such as pattern block height abrasion, hemming wear and the like, and ensuring the effective wear life of the pattern block; meanwhile, the residual rubber at the bottom of the longitudinal auxiliary groove forms a fully-through reinforced connecting rib among small pattern blocks, and the rigidity of the crown part can be homogenized while the rigidity among the blocks is ensured not to be reduced; and the small pattern blocks in the middle part of the tread are combined into a multilateral snap-in structure by designing the rubber ribs which are arranged in a staggered way and protrude mutually, so that the rigid connection among the pattern blocks is further enhanced when the tread middle part with the largest stress runs, and the abrasion life reduction caused by the over-large deformation, the block collapse and the block falling of the pattern blocks in the midway road-dislocating operation is prevented.

To sum up each decorative pattern design and performance, the utility model discloses the decorative pattern structure of tire can compromise the reinforcing midway good road surface high-speed down the heat dissipation resistant abnormal wear performance and improve the short distance bad road surface resistant thorn and prick the piece performance of falling, realizes tire life's promotion.

Drawings

Fig. 1 is a schematic view of a pattern structure of a tire provided by the present invention;

FIG. 2 is a schematic view of the structure of the multi-segment arc edge of the present invention;

FIG. 3 is a schematic view of prior art deformed wear of a block bead;

FIG. 4 is a schematic view of the position of the heat sink slot assembly;

FIG. 5 is a schematic structural view of a heat sink assembly;

FIG. 6 is a cross-sectional view of the pattern taken in the direction B-B 'and C-C' of FIG. 1;

FIG. 7 is a cross-sectional view of the pattern taken in the direction E-E of FIG. 1;

FIG. 8 is a cross-sectional view of the pattern in the direction E '-E' of FIG. 1;

FIG. 9 is a cross-sectional view of the pattern in the direction G-G' of FIG. 1;

FIG. 10 is a cross-sectional view of the pattern taken in the direction L-L' of FIG. 1;

in the above figures, 1, a transverse main groove; 2. a first longitudinal auxiliary groove; 3. a second longitudinal auxiliary groove; 4. a first pattern block; 5. a second pattern block; 6. a third pattern block; 7. a fourth pattern block; 8. a rubber rib; 9. a rim portion; 10. a heat sink slot assembly; 11. a stone removing rubber table.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "center", "both ends", etc. are positional relationships shown on the basis of the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

The utility model provides a tire, including the tire pattern, as shown in figure 1, the tire pattern includes a plurality of horizontal main grooves 1 and vertical pair of groove, use the tread central line as the boundary line, respectively set up a plurality of width and ditch wall angle along the tread center to the horizontal main groove 1 of shoulder direction gradual change in its left and right sides, the horizontal main groove 1 center of the left and right sides rotates and along circumference dislocation distribution, form spider leg shape horizontal main groove 1, dislocation distance L is any distance in 20 ~ 25 mm; the design can effectively transmit the torque force of the vehicle and provide stronger traction and braking performance.

The transverse pattern blocks are arranged at equal intervals along the circumferential direction of the tread, and one transverse pattern block is arranged between every two adjacent transverse main grooves 1. In a particular embodiment, n main transverse grooves 1 divide the entire tread into n-1 transverse blocks. The transverse pattern blocks are provided with a plurality of longitudinal auxiliary grooves, the longitudinal auxiliary grooves comprise a first longitudinal auxiliary groove 2 and a second longitudinal auxiliary groove 3, and two ends of the longitudinal auxiliary grooves are communicated with the transverse main groove 1. The plurality of longitudinal auxiliary grooves arranged between the transverse main grooves 1 divide the transverse pattern blocks into a plurality of small irregular polygonal pattern blocks which are arranged in a central rotation staggered manner and have the same area, in the specific embodiment, the small irregular polygonal pattern blocks respectively comprise a first pattern block 4, a second pattern block 5, a third pattern block 6 and a fourth pattern block 7 from the tire shoulder to the center direction of the tire tread and are regularly distributed along the circumferential direction; the blocks are connected by the fully-through reinforced connecting ribs formed by the residual rubber at the bottoms of the longitudinal auxiliary grooves, so that the rigidity of the crown part is homogenized, and the rigidity among the blocks is not reduced.

Further, the opening groove width of the main transverse grooves 1 disposed on the left and right sides of the tread center line is gradually increased along the direction from the tread center to the tire shoulder, as shown in fig. 1, the main transverse grooves 1 are zigzag-shaped grooves having three different bending angles, the bending angles of the groove walls thereof are respectively θ 1= any value from 130 ° to 135 °, θ 2= any value from 120 ° to 126 °, θ 3= any value from 135 ° to 140 °, and the three different bending angles and bending directions are combined into a "spider leg-shaped" main transverse zigzag groove. The transverse main groove 1 is cut along the directions of B-B 'and C-C' to obtain a cross-sectional structure shown in fig. 6, and it can be seen that the transverse main groove 1 is in an asymmetric V shape with a circular-arc groove bottom, the angle alpha of the groove wall at the bending position is beta, the angle alpha is larger than beta, the angle alpha is any value of 22-28 degrees, the angle beta is any value of 12-18 degrees, and the angle gradually changes along the direction from the center of the tread to the shoulder of the tire so as to reduce the occurrence of high-low wear abnormal wear of the pattern block.

In the embodiment, the transverse pattern blocks are symmetrically arranged on two sides of the central line of the tread and are arranged in a staggered manner, each transverse pattern block is provided with a first longitudinal auxiliary groove 2 and two second longitudinal auxiliary grooves 3, and the two second longitudinal auxiliary grooves 3 are respectively arranged on two sides of the first longitudinal auxiliary groove 2; the first longitudinal auxiliary groove 2 and the second longitudinal auxiliary groove 3 divide the transverse pattern block into four small polygonal pattern blocks, and the small polygonal pattern blocks sequentially comprise a fourth pattern block 7, a third pattern block 6, a second pattern block 5 and a first pattern block 4 along the central line of the tread to the direction of the tire shoulder.

As shown in FIG. 2, the connecting edge 9 of the small polygonal block including the first block 4, the second block 5, the third block 6 and the fourth block 7 with the main transverse groove 1 is designed as a multi-segment arc including an R1 arc having a radius of any value in the range of 0.8 to 1.5 and an R2 arc having a radius of any value in the range of 1.5 to 2. As can be seen from FIG. 2, first, a circle with a diameter of phi D is designed to intersect with two sides of the small polygonal pattern block, wherein phi D can be any value from 1 to 1.5, the two intersection points are connected to form an auxiliary line, and two sides of the small polygonal pattern block are respectively tangent to the auxiliary line to form an R1 arc and an R2 arc. The multi-section arc structure of the edge part 9 connected with the polygonal small pattern block and the transverse main groove 1 is matched with the structure that the groove wall angle of the transverse main groove 1 gradually changes along the direction from the tread center to the tire shoulder, so that the incidence rate of deformed wear such as pattern block height abrasion and hemming wear can be reduced, and the deformed wear such as hemming wear shown in figure 3 can be avoided.

Further, the tire pattern further comprises a rubber rib 8, and the rubber rib 8 is a protruding rubber block with a multi-section bending design. The small polygonal pattern blocks in the middle of the tread, in the specific embodiment, the fourth pattern blocks 7 on two sides of the central line of the tread, are combined into a polygonal occlusion type structure through the staggered distribution of the convex rubber ribs 8, so that the rigid connection among the pattern blocks is enhanced when the tire crown with the largest stress runs in the middle. It can be understood that the rubber rib 8 is obliquely arranged in the middle of the tread and is arranged along the circumferential direction in a staggered manner, and is not only located between the two fourth blocks 7, but also located between the two adjacent transverse main grooves 1 on both sides, and both ends of the rubber rib 8 are respectively connected with the ends of the two adjacent transverse main grooves 1 in the staggered manner. The vertical distance from the outer edge of the protruding rubber rib 8 to the tread center line is d =6 to 8mm, and as can be seen from fig. 1, a vertical line is drawn from the edge of the multi-segment bent rubber rib farthest from the tread center line to the tread center line, that is, the value of d is any value in the range of 6 to 8 mm.

In a specific embodiment, the first longitudinal auxiliary groove 2 is in a symmetrical V shape with an arc-shaped groove bottom, the groove wall is not bent and forms an included angle of 9-12 degrees with the longitudinal direction, the groove width is 6-8 mm, and the groove depth is 0.6 times of the depth of the transverse main groove 1; the second longitudinal auxiliary groove 3 is zigzag and is positioned at two sides of the first longitudinal auxiliary groove 2, the groove width is 3-5 mm, and the groove depth is 1/3 of the depth of the transverse main groove 1. The two longitudinal auxiliary grooves divide the transverse pattern blocks into four small irregular polygonal pattern blocks which are arranged in a central rotation staggered mode and have the same area. And the residual rubber below the longitudinal auxiliary groove forms a fully-through reinforced connecting rib among the polygonal small pattern blocks.

The second longitudinal auxiliary groove 3 is internally provided with a heat dissipation hole groove assembly 10, as shown in fig. 4, the positions of the second longitudinal auxiliary groove 3 and the heat dissipation hole groove assembly 10 included therein are set according to the belt structure of the tire crown part, so that the second longitudinal auxiliary groove 3 and the position of the heat dissipation hole groove assembly 10 included therein are located in the belt end region a where the tire deformation and heat generation are the largest and the tire crown middle region B where the stress is the largest, and the second longitudinal auxiliary groove 3 arranged in the region B is also the second longitudinal auxiliary groove 3 arranged at the position of the tread center line. This design further enhances the heat dissipation effect in the crown area, especially in the end areas of the belt structure and in the crown.

It should be explained that the bottom of the second longitudinal auxiliary groove 3, i.e. the middle of the fully-through reinforced connecting rib, is provided with the heat dissipation hole groove assembly 10, so that the rigidity of the crown part is homogenized while the rigidity between blocks is ensured not to be reduced. As shown in fig. 5, the heat dissipation hole slot assembly 10 includes a plurality of heat dissipation hole slots arranged at equal intervals and connection slots for connecting adjacent heat dissipation hole slots, the number of the heat dissipation hole slots may be 2, 3 or more, and the specific data is determined according to actual needs. The shape of the heat dissipation hole slot assembly 10 is designed according to the shape and the bending tendency of the second longitudinal auxiliary groove 3, and the length of the heat dissipation hole slot assembly is 2/3 of the length of the second longitudinal auxiliary groove 3. The structural design of the combination of the radiating hole groove increases the contact depth and area of air flow and the blocks when the tire rolls, and further improves the internal heat dissipation efficiency of the blocks. The diameter of the heat dissipation hole groove is 2/3 of the width of the second longitudinal auxiliary groove 3, and the depth of the heat dissipation hole groove is 2-3 times of the depth of the second longitudinal auxiliary groove 3; the width of the connecting groove is 1/3 of the width of the second longitudinal auxiliary groove 3, and the depth of the connecting groove is 1.5-2.5 times of the depth of the second longitudinal auxiliary groove 3.

The bottom of the transverse main groove 1 is provided with a wedge-shaped stone removing rubber platform 11 with large density and small volume, as shown in fig. 10, the height of the wedge-shaped stone removing rubber platform is arranged from low to high from the tire shoulder to the center of the tire tread, the height of the higher side of the wedge-shaped stone removing rubber platform is 1/5 of the depth of the transverse main groove 1, and the height of the lower side of the wedge-shaped stone removing rubber platform is 1/6 of the depth of the transverse main groove 1. And the upper edge of the stone removing rubber table 11 is smoothly treated according to R0.3-R0.5, so that foreign matters are more easily removed, the self-cleaning property of the tread groove is better, the loss of the bottom of the groove is prevented, and the puncture resistance and the service life of the tire during running on a short-distance road with bad road are improved.

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 modification made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tire comprises a tire pattern and is characterized in that the tire pattern comprises a plurality of transverse main grooves and longitudinal auxiliary grooves, the transverse main grooves are arranged at equal intervals along the circumferential direction of a tire tread and are arranged on two sides of the center line of the tire tread in a staggered mode, the transverse main grooves on the two sides are centrosymmetric relative to the center line of the tire tread, transverse pattern blocks are arranged between the transverse main grooves, and the transverse pattern blocks are arranged at equal intervals along the circumferential direction of the tire tread; the longitudinal auxiliary grooves are arranged on the transverse pattern blocks, two ends of each longitudinal auxiliary groove are communicated with the transverse main grooves, each longitudinal auxiliary groove comprises a first longitudinal auxiliary groove and a second longitudinal auxiliary groove, and the transverse pattern blocks are divided into a plurality of small polygonal pattern blocks by the first longitudinal auxiliary grooves and the second longitudinal auxiliary grooves.

2. The tire according to claim 1, wherein the lateral main grooves on both sides of the tread center line are shifted by a distance of 20 to 25mm, the width of the lateral main grooves increases gradually from the tread center line to the shoulder, and the cross-sectional structure of the lateral main grooves is an asymmetric V shape having a circular arc-shaped groove bottom.

3. The tire according to claim 1, wherein said transverse main grooves are zigzag-shaped grooves having three different bending angles of 135 ° to 140 °, 120 ° to 126 °, and 130 ° to 135 ° in order in the direction from the tread center line to the shoulder.

4. The tire according to claim 1, wherein said lateral blocks are symmetrically disposed on both sides of the tread centerline and arranged in a staggered manner, each of said lateral blocks is provided with a first longitudinal sub-groove and two second longitudinal sub-grooves, said first longitudinal sub-groove and said second longitudinal sub-grooves are disposed at intervals and divide the lateral block into four small polygonal blocks, and said small polygonal blocks sequentially comprise a fourth block, a third block, a second block and a first block along the direction from the tread centerline to the tire shoulder.

5. The tire of claim 4, wherein the edge of the polygonal small block connected with the transverse main groove is of a multi-segment arc structure comprising an arc with a radius of 0.8-1.5 and an arc with a radius of 1.5-2.

6. The tire according to claim 1, wherein the cross section of the first longitudinal auxiliary groove is a symmetrical V-shape with a rounded groove bottom, the groove wall is not bent and has an included angle of 9 ° to 12 ° with the longitudinal direction, the groove width is 6 to 8mm, and the groove depth is 0.6 times the depth of the transverse main groove; the second longitudinal auxiliary groove is zigzag and arranged on two sides of the first longitudinal auxiliary groove, the groove width of the second longitudinal auxiliary groove is 3-5 mm, and the groove depth is 1/3 of the depth of the transverse main groove.

7. The tire of claim 1 wherein the location of the second longitudinal secondary grooves on the lug is disposed in an end region of the belt where tire deformation heat generation is greatest, the tire pattern further comprising second longitudinal secondary grooves disposed at a tread centerline location; and a heat dissipation hole slot assembly is arranged in the second longitudinal auxiliary groove.

8. The tire according to claim 7, wherein said heat dissipating hole and groove assembly comprises a plurality of heat dissipating hole grooves arranged at equal intervals and connecting grooves for connecting adjacent heat dissipating hole grooves, said heat dissipating hole and groove assembly being arranged at the bottom of the groove along the bending tendency of the shape of the second longitudinal auxiliary groove, and the length of the heat dissipating hole and groove assembly is 2/3 of the length of the second longitudinal auxiliary groove; wherein, the diameter of the heat dissipation hole groove is 2/3 of the width of the second longitudinal auxiliary groove, and the depth is 2-3 times of the depth of the second longitudinal auxiliary groove; the width of the connecting groove is 1/3 of the width of the second longitudinal auxiliary groove, and the depth of the connecting groove is 1.5-2.5 times of the depth of the second longitudinal auxiliary groove.

9. The tire according to claim 1, further comprising a rubber rib which is a multi-segment bent convex rubber block, wherein the rubber rib is obliquely arranged at the center line of the tread and is used for connecting adjacent transverse main grooves at two sides of the center line of the tread, the vertical distance between the outer edge of the rubber rib and the center line of the tread is 6-8 mm, and the ends of the transverse main grooves close to the center line of the tread are connected with two ends of the rubber rib.

10. The tire according to claim 1, wherein the bottom of the transverse main groove is provided with a plurality of wedge-shaped stone removing rubber platforms, the height of the stone removing rubber platforms is arranged from low to high along the direction from the tire shoulder to the center of the tire tread, the height of the upper side of the stone removing rubber platforms is 1/5 of the depth of the transverse main groove, and the height of the lower side of the stone removing rubber platforms is 1/6 of the depth of the transverse main groove.

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