CN118358292A

CN118358292A - All-steel load tubeless radial tire tread pattern structure and tire

Info

Publication number: CN118358292A
Application number: CN202410435531.7A
Authority: CN
Inventors: 袁利真; 吴学斌; 王坤; 张明香
Original assignee: Double Coin Group Xinjiang Kunlun Tyre Co ltd
Current assignee: Double Coin Group Xinjiang Kunlun Tyre Co ltd
Priority date: 2024-04-11
Filing date: 2024-04-11
Publication date: 2024-07-19

Abstract

The invention relates to a tread pattern structure of an all-steel load tubeless radial tire and the tire, the pattern structure comprises: two first longitudinal grooves symmetrically arranged along the central point of the crown and distributed along the circumferential direction of the tread of the tire; second longitudinal grooves arranged outside the first longitudinal grooves and distributed along the tire tread circumferential direction; and a protrusion portion for enhancing tread driving force, wear resistance is disposed between the two first longitudinal grooves and between the first longitudinal groove and the second longitudinal groove. Compared with the prior art, the invention realizes that the tire has good guiding performance, drainage performance, ground grabbing performance, puncture resistance and sideslip resistance under high-speed running, and the traction and lateral force of the tire are improved by continuously changing the angle of the pattern groove.

Description

All-steel load tubeless radial tire tread pattern structure and tire

Technical Field

The invention belongs to the technical field of tire design, and particularly relates to a tread pattern structure of an all-steel load tubeless radial tire and the tire.

Background

Tires are annular elastomeric rubber articles assembled on various vehicles or machines for ground contact rolling. The automobile body is supported by the automobile body through the metal rim, external impact is buffered, contact with a road surface is achieved, and running performance of the automobile is guaranteed. Tires are often used under complex and severe conditions, and they are subjected to various deformations, loads, forces and high and low temperatures during running, and therefore must have high load-bearing, traction and cushioning properties. At the same time, it is also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat buildup. Half of the world's consumed rubber is used in tire production, and the ability of a tire to consume rubber is seen.

The design of the tire pattern is various, and is considered according to the application of different purposes and different road conditions, and the tire pattern is also considered from the aspects when being selected. The tire patterns play a very important role in the whole driving, and the patterns with reasonable design not only can effectively save oil, but also can reduce noise generated in the driving process of the automobile, and can enhance the driving force, braking force and traction performance of the automobile on various severe and wet road surfaces, thereby improving the driving safety of the automobile.

There are generally several categories of tire tread patterns:

(1) The straight groove pattern is also called a common pattern, and the pattern is designed by taking a longitudinal groove as a main pattern.

The characteristics are as follows: excellent steering stability, small rotation resistance, low noise, excellent drainage performance and difficult transverse sliding.

The method is applicable to: vehicle type is used in walking on the flat road surface: cars, trucks, and even airplanes.

Disadvantages: the driving and traction forces are poor.

(2) Transverse groove pattern: the design of the pattern mainly comprises transverse grooves.

The characteristics are as follows: the driving force, braking force and traction force of the transverse groove pattern are particularly excellent, and the wear resistance thereof is excellent.

The method is applicable to: vehicle type used for severe road surfaces such as crushed stone roads and the like: most of them are used in industrial, medium and short-distance vehicles such as bulldozers, excavators, loaders, and heavy-duty vehicles.

Disadvantages: the noise is big.

(3) Longitudinal and transverse groove pattern: the longitudinal and transverse groove patterns are also called comprehensive patterns, and the comprehensive straight groove pattern and the transverse groove pattern are designed.

The characteristics are as follows: has the advantages of the patterns of the longitudinal grooves and the transverse grooves.

The method is applicable to: and (5) a severe road surface.

Disadvantages: abnormal abrasion is easily generated.

(4) Block pattern: the patterns are regularly arranged in blocks.

The characteristics are as follows: the driving force and the braking force are good, and the force for driving the vehicle to advance is provided.

The method is applicable to: snow, mud, etc.

Disadvantages: poor wear resistance and short mileage life.

The main tubeless tire driving route in the market is the road surface above the pavement, the main quality symptoms of the tire are shoulder air, crown air and wear resistance, the tire has high requirement on patterns, good wear resistance and novel appearance.

As CN111703258a discloses a tread structure and a tire, the tread structure is sequentially arranged from outside to inside with an outer shoulder rib, a center rib and an inner shoulder rib separated by a longitudinal main groove; the outer tire shoulder rib is provided with a plurality of first transverse grooves which are circumferentially and axially arranged and have unequal pitches; the inner shoulder rib is provided with a plurality of second transverse grooves which are axially arranged along the circumference and have unequal pitches; the first transverse groove penetrates through the longitudinal main groove; the second transverse groove axially penetrates through the inner shoulder rib; the pitch of the first transverse grooves is larger than that of the second transverse grooves; the first transverse groove has a smaller groove width than the second transverse groove; the central rib is provided with a plurality of first knife flutes with unequal intervals; the first sipe is disposed axially and obliquely, and at least one end extends through an adjacent longitudinal primary groove. However, this application is only poor in design guidance of the groove pattern, poor in drainage property, and poor in grip.

Disclosure of Invention

The application aims to overcome the defects of the prior art and provide an all-steel load tubeless radial tire tread pattern structure and a tire, and the collocation design of the longitudinal pattern and the transverse pattern in the application realizes that the tire has good guiding performance, drainage performance, grip performance, puncture resistance and sideslip resistance under high-speed running, and the traction and the lateral force of the tire are improved by continuously changing the angle of the pattern groove.

The aim of the invention can be achieved by the following technical scheme:

The invention provides a tread pattern structure of an all-steel load tubeless radial tire, which comprises the following steps:

Two first longitudinal grooves symmetrically arranged along the central point of the crown and distributed along the circumferential direction of the tire tread, wherein the bottom surfaces of the first longitudinal grooves in arc transition extend outwards along the radial direction to the tread surface to form grooves with gradually increased widths;

The second longitudinal grooves are arranged outside the first longitudinal grooves and distributed along the circumferential direction of the tire tread, and the bottom surfaces of the second longitudinal grooves in arc transition extend outwards in the radial direction to the tread surface to form grooves with gradually increased widths;

and a protrusion portion for enhancing tread driving force, wear resistance is disposed between the two first longitudinal grooves and between the first longitudinal groove and the second longitudinal groove.

Further, the convex portion includes:

a plurality of blocks arranged between the two first longitudinal grooves and between the first longitudinal groove and the second longitudinal groove and distributed along the circumferential direction of the tread of the tire;

and connecting ribs for connecting the adjacent two pattern blocks.

Still further, the protruding portion further includes a first steel sheet disposed on the block, the first steel sheet being located between the two first longitudinal grooves and an arrangement direction of the first steel sheet intersecting the tire tread circumferential direction.

Still further, the protruding portion further includes a second steel sheet disposed on the block, the second steel sheet being located between the first longitudinal groove and the second longitudinal groove and an arrangement direction of the second steel sheet being parallel to the tire tread circumferential direction.

Further, a plurality of stone rows are arranged on the first longitudinal grooves.

Further, the two walls of the first longitudinal groove are of a zigzag design, and the two walls of the second longitudinal groove are of a linear design and are partially zigzag and have a degree of zigzag smaller than that of the first longitudinal groove.

Further, the second longitudinal grooves are arranged in a step-like manner away from the inner wall in the direction of the first longitudinal grooves and form a plurality of steps.

Further, the pattern structure further comprises a plurality of first grooves and second grooves which are arranged outside the second longitudinal pattern groove and are alternately arranged, and the depths of the first grooves and the second grooves are different.

Further, a plurality of exhaust holes are distributed on the first longitudinal groove, the second longitudinal groove and the protruding portion.

The present invention also provides a tire comprising:

a tire carcass; and

An all-steel load tubeless radial tire tread pattern structure arranged on the tire carcass tread and described above.

Compared with the prior art, the invention has the following beneficial effects:

1. The tread of the tread block is provided with three rows, and is of an asymmetric design, so that the tread is crossed in rigidity, the left and right are shaped like a self-locking function, the straight running stability of the vehicle on various roads is improved, the drainage and snow discharge performances are excellent, the running stability on severe ground such as accumulated snow and water ground is enhanced, the running function of a normal road is considered, the rigid connection between the tread blocks is ensured by the connecting ribs, the friction force between the tread block and the bottom surface is improved, and the driving force of the tread is increased.

2. According to the invention, the first steel sheet and the second steel sheet are arranged, so that the friction force between the pattern blocks arranged between the two first longitudinal pattern grooves and the ground is increased, the grounding area is increased, the strong ground grasping force and the control performance are ensured, the first steel sheet and the second steel sheet are matched with the tire shoulder grooves, the drainage is facilitated, the wet land braking performance is improved, the wear resistance of the tread is improved, and the driving force of the tread is increased.

3. The design of the stone discharging block in the invention improves the stone discharging and water discharging performance of the tire.

4. According to the invention, the two walls of the second longitudinal groove are in a linear design, and the two walls of the second longitudinal groove are partially bent and have a bending degree smaller than that of the first longitudinal groove, and the traction force and the lateral force of the tire are improved by continuously changing the angle of the groove.

5. In the invention, the second longitudinal grooves are arranged in a step manner on the inner wall far away from the first longitudinal grooves and form a plurality of steps, and the arrangement of the steps has the effects of removing the stones and reducing the noise. And the first grooves and the second grooves are alternately arranged, so that the heat dissipation capability of the tire is improved.

6. The exhaust holes in the invention are convenient for exhausting during vulcanization, prevent pattern fillets and side walls from being lack of rubber caused by air pockets, promote the flow of rubber materials, and lead the rubber materials to be vulcanized more uniformly.

7. The invention adopts the mixed pattern and the variation design of the straight groove and the folded groove; the rigidity of the tire shoulder part is rationalized, and the tire shoulder part has excellent eccentric wear resistance; deep pattern design, long wear life; the carcass has excellent durability.

Drawings

Fig. 1 is a schematic view of the tread pattern structure in embodiment 1.

Fig. 2 is a single pitch schematic of the tread pattern structure of example 1.

Reference numerals in the drawings:

1-first longitudinal grooves, 101-stone discharging blocks, 2-second longitudinal grooves, 201-steps, 3-protruding parts, 301-blocks, 302-connecting ribs, 303-first steel sheets, 304-second steel sheets, 4-first grooves, 5-second grooves and 6-air discharging holes.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.

Features such as a part model, a material name, a connection structure, a control method and the like which are not explicitly described in the technical scheme are all regarded as common technical features disclosed in the prior art.

In the description of the present invention, it should be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be bolt connection or welding connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The tubeless tire has higher requirements on road surface running, and the main quality symptoms of common tires are shoulder void, crown void and non-wear resistance, so the tire has higher requirements on patterns, has good wear resistance and novel appearance, but the straight groove patterns, the transverse groove patterns, the longitudinal and transverse groove patterns and the block patterns cannot have good guiding performance, drainage performance, grip performance, puncture resistance and sideslip resistance, and the traction force or lateral force of the tire is not high, therefore, the invention provides an all-steel load tubeless radial tire tread pattern structure, the structure of which is shown in fig. 1, comprising:

Two first longitudinal grooves 1 symmetrically arranged along the central point of the crown and distributed along the circumferential direction of the tire tread, wherein the bottom surfaces of the first longitudinal grooves 1 in arc transition extend outwards along the radial direction to the tread surface to form grooves with gradually increased widths;

a second longitudinal groove 2 arranged outside the first longitudinal groove 1 and distributed along the circumferential direction of the tire tread, the bottom surface of the second longitudinal groove 2 in the arc transition extending radially outwards to the tread surface to form a groove with gradually increasing width;

And a protrusion 3 for enhancing tread driving force, wear resistance is disposed between the two first longitudinal grooves 1 and between the first longitudinal groove 1 and the second longitudinal groove 2.

In some specific embodiments, referring again to fig. 1, the protruding portion 3 includes:

The tire tread comprises a plurality of blocks 301 which are arranged between two first longitudinal grooves 1 and between the first longitudinal grooves 1 and the second longitudinal grooves 2 and distributed along the circumferential direction of the tire tread, wherein the blocks 301 are arranged in three rows on the tread, are asymmetrically designed, enable the tread to rigidly cross, have a left-right self-locking function, improve the straight running stability of the vehicle on various roads, have excellent drainage and snow removal performances, enhance the running stability on severe ground, such as accumulated snow and give consideration to the running function of normal road surfaces;

and connecting ribs 302 connecting adjacent two pattern blocks 301, the connecting ribs 302 ensure rigid connection between the pattern blocks 301, the friction force between the pattern blocks 301 and the bottom surface is improved, and the driving force of the tread is increased.

In a more specific embodiment, referring to fig. 1 again, the protruding portion 3 further includes a first steel sheet 303 disposed on the pattern block 301, the first steel sheet 303 is located between the two first longitudinal grooves 1 and the arrangement direction of the first steel sheet 303 intersects the tire tread circumferentially, and the arrangement of the first steel sheet 303 increases the friction force between the pattern block 301 disposed between the two first longitudinal grooves 1 and the ground, increases the grounding area, ensures strong gripping force and handling performance, and is matched with the shoulder groove, thereby being beneficial to drainage, improving the braking performance of the wetland, improving the wear resistance of the tread, and increasing the driving force of the tread.

In a more specific embodiment, referring to fig. 1 again, the protruding portion 3 further includes a second steel sheet 304 disposed on the pattern block 301, the second steel sheet 304 is disposed between the first longitudinal groove 1 and the second longitudinal groove 2, and the arrangement direction of the second steel sheet 304 is parallel to the tire tread circumference, and the arrangement of the second steel sheet 304 increases the friction force between the pattern block 301 disposed between the two first longitudinal grooves 1 and the ground, increases the ground contact area, ensures strong ground grasping force and handling performance, and cooperates with the shoulder grooves, thereby facilitating drainage, improving the wet braking performance, improving the wear resistance of the tread, and increasing the driving force of the tread.

In some specific embodiments, referring to fig. 1 again, a plurality of stone-discharging blocks 101 are disposed on the first longitudinal grooves 1, and the stone-discharging blocks 101 are designed to improve the stone-discharging and water-discharging performance of the tire.

In some specific embodiments, referring to fig. 1 again, the two walls of the first longitudinal groove 1 are in a zigzag design, the two walls of the second longitudinal groove 2 are in a linear design, and the two walls are partially zigzag and have a smaller zigzag extent than the first longitudinal groove 1, and the continuously variable groove angle increases the traction and lateral force of the tire.

In some specific embodiments, referring to fig. 1 again, the second longitudinal groove 2 is arranged in a step manner on the inner wall far away from the first longitudinal groove 1, and a plurality of steps 201 are formed, and the steps 201 play a role in removing stones and reducing noise.

In some specific embodiments, referring to fig. 1 again, the pattern structure further includes a plurality of first grooves 4 and second grooves 5 disposed outside the second longitudinal grooves 2 and alternately arranged, so as to improve the heat dissipation capability of the tire, wherein the first grooves 4 and the second grooves 5 have different depths.

In some specific embodiments, referring to fig. 1 again, a plurality of exhaust holes 6 are distributed on the first longitudinal grooves 1, the second longitudinal grooves 2 and the protruding portions 3, so as to facilitate exhaust during vulcanization, prevent air from causing pattern fillets and side wall shortage, promote the flow of rubber, and make the vulcanization of rubber more uniform.

A second aspect of the present invention provides a tire comprising:

a tire carcass; and

The above embodiments may be implemented singly or in any combination of two or more.

The above embodiments are described in more detail below in connection with specific examples.

Example 1

The tubeless tire has higher requirements on road surface running, and the main quality symptoms of common tires are shoulder void, crown void and non-wear resistance, so the tire has higher requirements on patterns, has good wear resistance and novel appearance, but the straight groove patterns, the transverse groove patterns, the longitudinal and transverse groove patterns and the block patterns cannot have good guiding performance, drainage performance, grip performance, puncture resistance and sideslip resistance, and the traction force or lateral force of the tire is also not high, therefore, the embodiment provides an all-steel load tubeless radial tire tread pattern structure, which is shown in fig. 1, and comprises two first longitudinal grooves 1, a second longitudinal groove 2 and a protruding part 3, wherein the two first longitudinal grooves 1 are symmetrically arranged along the center point of a crown and distributed along the circumferential direction of the tire tread, and the bottom surfaces of the first longitudinal grooves 1 in circular arc transition extend outwards to the tread surface along the radial direction to form grooves with gradually increased widths; the second longitudinal grooves 2 are arranged outside the first longitudinal grooves 1 and distributed along the circumferential direction of the tire tread, the bottom surfaces of the second longitudinal grooves 2 in arc transition extend outwards along the radial direction to form grooves with gradually increased widths, the convex parts 3 are arranged between the two first longitudinal grooves 1 and between the first longitudinal grooves 1 and the second longitudinal grooves 2 for enhancing tread driving force and wear resistance, the first longitudinal grooves 1 are provided with the stone discharging blocks 101, the design of the stone discharging blocks 101 improves the stone discharging and water discharging performance of the tire, the two walls of the first longitudinal grooves 1 are of a zigzag design, the two walls of the second longitudinal grooves 2 are of a linear design and are smaller than the first longitudinal grooves 1 in part zigzag degree, the traction force and the lateral force of the tire are improved due to the continuously changed groove angles, the second longitudinal grooves 2 are arranged in a stepped manner away from the inner walls of the first longitudinal grooves 1 and form three steps 201, the arrangement of the steps 201 plays a role in stone discharging and noise reduction, the two walls of the first longitudinal grooves 1, the second longitudinal grooves 2, the convex parts 3 and the rubber material 3 are distributed on the rubber material, and the rubber discharging holes 6 are more evenly distributed on the rubber discharging grooves are more than the tire tread, and the tire tread is more convenient to prevent the tire tread from being broken, and the tire tread from being broken due to the vulcanization.

Specifically, the raised portion 3 includes the blocks 301, the connecting ribs 302, the first steel sheet 303, and the second steel sheet 304, the blocks 301 are arranged between the two first longitudinal grooves 1 and between the first longitudinal grooves 1 and the second longitudinal grooves 2 and distributed in the tire tread circumferential direction, the connecting ribs 302 connect the adjacent two blocks 301, the connecting ribs 302 ensure rigid connection between the blocks 301, friction between the blocks 301 and the bottom surface is improved, driving force of the tread is increased, the first steel sheet 303 is arranged on the blocks 301 and between the two first longitudinal grooves 1 and the arrangement direction of the first steel sheet 303 intersects the tire tread circumferential direction, friction between the blocks 301 arranged between the two first longitudinal grooves 1 and the ground is increased, wear resistance of the tread is improved, driving force of the tread is increased, the second steel sheet 304 is arranged on the blocks 301, the second steel sheet 304 is arranged between the first longitudinal grooves 1 and the second longitudinal grooves 2 and the arrangement direction of the second steel sheet 304 is parallel to the tire tread circumferential direction, the friction between the two first grooves 301 and the ground is increased, and the wear resistance of the tread is increased, and the wear resistance of the tread is increased, the first steel sheet 304 is arranged between the two longitudinal grooves and the tread is arranged.

And, the pattern structure still includes a plurality of first recesses 4 and the second recess 5 that locate the outside of second vertical groove 2 and arrange alternately, improves the heat dispersion of tire, and first recess 4 and second recess 5 degree of depth are different, are 26.5mm, 20.5mm respectively.

Referring again to FIG. 2, FIG. 2 is a single pitch pattern with a tread pattern pitch of 57 knots and a running surface width of 214mm in this embodiment.

Specifically, the first longitudinal groove 1 has a groove width of 13mm, a groove depth of 21mm, the second longitudinal groove 2 has a groove width of 13mm, a groove depth of 21mm, a step 201 has a width of 2.5mm, a depth of 4mm, and the exhaust hole 6 has a diameter of 0.8mm.

The working principle of this embodiment is as follows:

The pattern blocks 301 are provided with three rows on the tread and are of asymmetric design, so that the tread is crossed rigidly, the left and right are shaped like a self-locking function, the straight running stability of the vehicle on various roads is improved, the drainage and snow discharge performances are excellent, the running stability on severe ground such as snow accumulation ground is enhanced, the running function of normal road is considered, the connecting ribs 302 ensure the rigid connection between the pattern blocks 301, the friction force between the pattern blocks 301 and the ground is improved, the driving force of the tread is increased, the arrangement of the first steel sheet 303 increases the friction force between the pattern blocks 301 arranged between two first longitudinal pattern grooves 1 and the ground, the ground contact area is increased, the strong ground grasping force and the control performance are ensured, the pattern blocks are matched with the shoulder grooves, the drainage is facilitated, the wet braking performance is improved, the wear resistance of the tread is improved, the driving force of the tread is increased, the arrangement of the second steel sheet 304 increases the friction force between the pattern blocks 301 arranged between the two first longitudinal pattern grooves 1 and the ground, increases the ground contact area, ensures strong grip and steering performance, is matched with the tire shoulder grooves, is beneficial to drainage, improves the wet braking performance and improves the wear resistance of the tire tread, increases the driving force of the tire tread, improves the stone discharging and drainage performance of the tire by the design of the stone discharging block 101, has the linear design of the two walls of the second longitudinal pattern groove 2, is partially bent and has the bending degree smaller than that of the first longitudinal pattern groove 1, increases the traction force and the lateral force of the tire by continuously changing pattern groove angles, and is arranged in a step manner on the inner wall of the second longitudinal pattern groove 2 far away from the direction of the first longitudinal pattern groove 1 to form a plurality of steps 201, and the arrangement of the steps 201 plays a role in stone discharging and noise reduction. And the first grooves 4 and the second grooves 5 which are alternately arranged improve the heat dissipation capacity of the tire, in addition, the exhaust holes 6 facilitate exhaust during vulcanization, prevent the air from causing pattern fillets and side wall lacked, promote the flow of rubber materials and lead the vulcanization of the rubber materials to be more uniform.

Example 2

The present embodiment provides a tire including:

a tire carcass; and

An all steel load-bearing tubeless radial tire tread pattern structure provided on the tire carcass tread and as in example 1.

Comparative example 1

Compared to example 1, the vast majority is the same except that the first grooves 4 and the second grooves 5 are the same depth.

Comparative example 2

Most of the same as in embodiment 1 except that the arrangement direction of the first steel sheet 303 is parallel to the tire tread circumferential direction.

The rolling resistance and grip of example 1, comparative example 1 and comparative example 2 were respectively tested using ECE R117, and the test results are shown below:

Performance of	Example 1	Comparative example 1	Comparative example 2
				Ground rolling resistance N/KN	5.844	6.055	6.096
Wet grip performance index G	1.16	1.02	1.08

As is clear from the above table, the tire using the tread pattern structure provided in example 1 had a reduced rolling resistance and an increased wet grip performance index after the asymmetric design.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims

1. An all-steel load tubeless radial tire tread pattern structure, comprising:

Two first longitudinal grooves (1) symmetrically arranged along the central point of the crown and distributed along the circumferential direction of the tire tread, wherein the bottom surfaces of the first longitudinal grooves (1) in arc transition extend outwards along the radial direction to the tread surface to form grooves with gradually increased widths;

Second longitudinal grooves (2) which are arranged outside the first longitudinal grooves (1) and distributed along the circumferential direction of the tire tread, wherein the bottom surfaces of the second longitudinal grooves (2) in arc transition extend outwards along the radial direction to the tread surface to form grooves with gradually increased widths;

and a protrusion (3) for enhancing tread driving force, wear resistance is arranged between the two first longitudinal grooves (1) and between the first longitudinal grooves (1) and the second longitudinal grooves (2).

2. An all-steel load tubeless radial tire tread pattern structure according to claim 1, wherein the raised portion (3) comprises:

-a plurality of blocks (301) arranged between two first longitudinal grooves (1) and between a first longitudinal groove (1) and a second longitudinal groove (2) and distributed along the circumferential direction of the tread of the tyre;

And a connecting rib (302) connecting the adjacent two blocks (301).

3. An all-steel load tubeless radial tire tread pattern structure according to claim 2, characterized in that the raised portion (3) further comprises first steel sheets (303) provided on the blocks (301), the first steel sheets (303) being located between two first longitudinal grooves (1) and the arrangement direction of the first steel sheets (303) intersecting the tire tread circumference.

4. An all-steel load tubeless radial tire tread pattern structure according to claim 2, characterized in that the raised portion (3) further comprises a second steel sheet (304) provided on the block (301), the second steel sheet (304) being located between the first longitudinal groove (1) and the second longitudinal groove (2) and the second steel sheet (304) being arranged in a direction parallel to the tire tread circumference.

5. An all-steel load tubeless radial tire tread pattern structure according to claim 1, characterized in that the first longitudinal grooves (1) are provided with a number of stone rows (101).

6. Tread pattern structure for an all-steel truck tubeless radial tire according to claim 1, characterized in that the two walls of the first longitudinal groove (1) are of zigzag design, and the two walls of the second longitudinal groove (2) are of rectilinear design and are partly zigzag and of a lesser extent than the first longitudinal groove (1).

7. An all-steel load tubeless radial tire tread pattern structure according to claim 1, characterized in that the second longitudinal grooves (2) are arranged stepwise away from the inner wall in the direction of the first longitudinal grooves (1) and form several steps (201).

8. Tread pattern structure for an all-steel truck tubeless radial tire according to claim 1, characterized in that it further comprises a plurality of alternately arranged first grooves (4) and second grooves (5) arranged outside the second longitudinal grooves (2), said first grooves (4) and second grooves (5) being of different depths.

9. An all-steel load tubeless radial tire tread pattern structure according to claim 1, characterized in that the first longitudinal grooves (1), the second longitudinal grooves (2) and the raised portions (3) are distributed with a plurality of exhaust holes (6).

10. A tire, comprising:

a tire carcass; and

An all-steel load-carrying tubeless radial tire tread pattern structure provided on the tire carcass tread and as claimed in any one of claims 1 to 9.