CN115157935A

CN115157935A - Resonance sound absorption noise reduction tire

Info

Publication number: CN115157935A
Application number: CN202210858849.7A
Authority: CN
Inventors: 吕佳锋; 陈伊宁; 孙娟; 张维雁
Original assignee: Zhongce Rubber Group Co Ltd
Current assignee: Zhongce Rubber Group Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-10-11

Abstract

The invention relates to the field of tires, in particular to a tire with resonance sound absorption and noise reduction functions, wherein a tire pattern is arranged on a tire tread of the tire, the tire pattern comprises an inner rib arranged in the middle of the tire tread and outer ribs arranged on two sides of the tire tread, an outer groove depressed towards the inner side of the tire tread is formed between the inner rib and the outer rib, and the inner rib, the outer rib and the outer groove respectively extend along the circumferential direction of the tire tread and form a ring; a first sound absorption structure extending towards the inner part of the tread is arranged on the groove wall of the outer groove close to the outer side of the tread; a plurality of transverse grooves are arranged on the inner side ribs at intervals along the circumferential direction of the tread, and second sound absorption structures extending towards the inside of the tread are arranged at the bottoms of the transverse grooves. The present invention has an advantage in that the first and second sound absorbing structures can reduce noise during driving of the tire through resonance sound absorption.

Description

Resonance sound absorption noise reduction tire

Technical Field

The invention relates to the field of tires, in particular to a tire capable of realizing resonance sound absorption and reducing noise.

Background

Tire noise is noise generated by the interaction of the tires of a running vehicle with the road surface, the interaction of the tires with air, and the deformation of the tires, and is one of two major sources of automotive noise. The research shows that the noise of the truck tires becomes the main noise source of the automobile when the driving speed of the automobile reaches 70km/h on a dry road surface, and the noise of the tires becomes the main factor when the speed of the automobile is higher than 45 to 55km/h for cars and light trucks.

With the development of the automobile industry, the ordinary tire can not meet the pursuit of people on the performances of high performance, comfort, wear resistance and the like of the tire, and the requirement of people on the noise performance of the tire is higher and higher. The labeling act proposed in the european union clearly proposes the wet grip performance level and the noise level of tires, and similar regulations have been put into practice in japan.

The existing mainstream methods for noise reduction can be classified into the following methods: the sizes of adjacent patterns are different by adjusting the shapes of the patterns, so that noise is dispersed, sound energy superposition is avoided, and the purpose of noise reduction is finally achieved; the size of the groove is reduced, the groove becomes smaller, the air volume is reduced, and the compressed and expanded air becomes less, so that the pumping noise is reduced; noise is dispersed by designing different pattern grooves, so that the consistent resonance frequency of air columns in all the grooves is avoided; the longitudinal grooves are additionally provided with the bulges, so that air flow is dispersed, resonance sound is reduced, and the like.

However, even with the above method, the noise reduction effect is still not good, and with the emphasis on the overall performance of the tire, a tire with better noise reduction effect needs to be designed.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a resonance sound absorption and noise reduction tire, in which a sound absorption structure is provided in a groove, and the sound absorption structure absorbs sound in a resonance manner, thereby improving a silencing effect.

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

a resonance sound absorption noise reduction tire, the tire tread of which is provided with tire patterns, the tire patterns comprise inner side ribs arranged in the middle of the tire tread and outer side ribs arranged on two sides of the tire tread, outer side grooves depressed towards the inner side of the tire tread are formed between the inner side ribs and the outer side ribs, and the inner side ribs, the outer side ribs and the outer side grooves respectively extend along the circumferential direction of the tire tread and form a ring;

a first sound absorption structure extending towards the interior of the tread is arranged on a groove wall close to the outer side of the tread in the outer groove, and the first sound absorption structure comprises a first channel with the outer end connected to the groove wall of the outer groove and a first spherical cavity connected to the inner end of the first channel; the sphere center of the first spherical cavity is positioned on the axis of the first channel, and the diameter of the first spherical cavity is larger than that of the first channel; the first channel and the first spherical cavity form a Helmholtz resonator;

a plurality of transverse grooves are arranged on the inner side ribs at intervals along the circumferential direction of the tread, second sound absorption structures extending towards the interior of the tread are arranged at the groove bottoms of the transverse grooves, and each second sound absorption structure comprises a second channel with the outer end connected to the groove bottom of the corresponding transverse groove and a second spherical cavity connected to the inner end of the corresponding second channel; the spherical center of the second spherical cavity is positioned on the axis of the second channel, and the diameter of the second spherical cavity is larger than that of the second channel; the second passage and the second spherical cavity form a Helmholtz resonator.

Preferably, the direction of the first channel axis is parallel to the width direction of the tread; the diameter of the first spherical cavity is greater than twice the diameter of the first passageway.

Preferably, the axial direction of the second channel is parallel to the normal direction of the tread where the second channel is located; the diameter of the second bulbous cavity is greater than twice the diameter of the second passageway.

As the preferred, outside groove includes a plurality of section interconnect's ditch groove section, and these ditch groove section slopes set up, and the junction of two upper and lower ditch groove sections misplaces each other for be formed with a plurality of departments on the lateral wall of outside groove to the convex vortex structure of ditch inslot side, the air current is through vortex structure, collides with vortex structure, changes flow direction, noise reduction.

Preferably, the turbulent flow structure includes: the first or second barb surfaces located on the groove walls of the outer grooves adjacent the inner side of the tread, and the third barb surfaces located on the groove walls of the outer ribs adjacent the outer side of the tread, the first, second and third barb surfaces all extending laterally and into the outer grooves.

Preferably, the inner rib includes first blocks and second blocks arranged alternately,

on the left side edge of the inner pattern rib, the connecting positions of the first left side edge of the first pattern block and the second left side edge of the second pattern block are staggered with each other in the transverse direction, so that a first barb surface is formed;

on the right side edge of the inner pattern rib, the connecting positions of the first right side edge of the first pattern block and the second right side edge of the second pattern block are staggered with each other in the transverse direction, so that a second barb surface is formed;

the outer pattern rib comprises a plurality of shoulder pattern blocks which are mutually connected, and the connection positions of the upper shoulder pattern block and the lower shoulder pattern block are mutually staggered in the transverse direction, so that a third barb surface is formed.

Preferably, the first block and the second block form a transverse groove extending transversely and having both ends connected to the left and right sides of the inner rib, the transverse groove is obliquely arranged, and a connecting line of the left end point and the right end point of the transverse groove forms an included angle of 10-45 degrees with the tread width direction.

Preferably, the connecting position of the shoulder pattern blocks is provided with a sickle-shaped groove extending towards the outer side of the tread, the inner side of the sickle-shaped groove is communicated with the outer groove, and a step surface is arranged in the sickle-shaped groove.

Preferably, a plurality of heat conducting grooves which are sunken towards the inner side of the tread, extend longitudinally and are distributed transversely are arranged between the upper side edge and the lower side edge of the second pattern block, and the depth of each heat conducting groove is 0-3mm.

In summary, the present invention has an advantage that the first and second sound absorbing structures can reduce noise during running of a tire by resonance sound absorption. The sickle-shaped groove positioned on the tire shoulder can reduce the air pumping noise of the tire by reducing the air compression ratio. The outer groove has a reversed zigzag shape, and noise of the tire can be reduced by disturbing the flow characteristics of the air flow in the groove. The inclined arrangement of the lateral grooves makes it gradually contact with the ground, thereby reducing noise. The surface of the second pattern block is provided with the zigzag heat conduction structure, so that a heat conduction channel is provided, heat can be effectively conducted, and the heat radiation performance of the tire is improved.

Drawings

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

Fig. 2 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a cross-sectional view at B-B in fig. 1.

Fig. 4 is a cross-sectional view at C-C in fig. 1.

Fig. 5 is a cross-sectional view taken at D-D in fig. 1.

Detailed Description

As shown in FIG. 1, a tire has a tire pattern on its tread, specifically comprising an inner rib 1 and an outer rib 2. The inner rib 1 is located in the middle of the tread and extends in the circumferential direction of the tread to form a ring shape. The outer ribs 2 are located on the left and right sides of the tread (commonly referred to as the shoulders, and therefore also commonly referred to as shoulder ribs), also extending in the circumferential direction of the tread to form a ring shape. An outer groove 3 recessed inward of the tread is formed between the inner rib 1 and the outer rib 2, and the outer groove 3 is formed to extend in the circumferential direction of the tread to form a ring shape because the boundary of the outer groove 3 is defined by the inner rib 1 and the outer rib 2.

For example, referring to fig. 1, two inner ribs 1 are spaced left and right, and an inner groove 4 is formed between the two inner ribs 1. Specifically, the two inner ribs 1 are distributed on the left and right sides with the center line of the tread as a boundary. The number of the inner ribs 1 is not limited to two, and may be one, or three or more. When the inner ribs 1 are odd numbered, the center line of the inner rib 1 in the middle coincides with the center line of the tread, and the other inner ribs 1 are distributed on both sides. When the inner ribs 1 are even numbered, the inner ribs 1 are distributed on both the left and right sides of the tread center line in the manner referred to in fig. 1.

As shown in fig. 1, the inner rib 1 includes first blocks 11 and second blocks 12 alternately arranged in the circumferential direction of the tread, and laterally extending lateral grooves 5 are formed at the junctions of the first blocks 11 and the second blocks 12, that is, one lateral groove 5 is formed on each of the upper and lower sides of each first block 11, or on each of the upper and lower sides of each second block 12. The lateral grooves 5 have left and right ends communicating with the outer grooves 3 and/or the inner grooves 4. Specifically, in fig. 1, there are two rows of the lateral grooves 5, the left end of the lateral groove 5 on the left side communicates with the outer groove 3 on the left side, and the right end of the lateral groove 5 communicates with the inner groove 4. The right end of the lateral groove 5 on the right side communicates with the lateral groove 5 on the right side, and the left end of the lateral groove 5 communicates with the inner groove 4.

As shown in fig. 1, the first block 11 has a substantially quadrangular shape, and left and right sides of the quadrangular shape are defined as a first left side 111 and a first right side 112, respectively, and upper and lower sides thereof are defined as a first upper side 113 and a first lower side 114, respectively. The first left side 111 and the first right side 112 are first straight lines parallel to each other, and the first straight lines form an included angle with the tread center line, that is, the first left side 111 and the first right side 112 are both obliquely arranged, and the oblique angle is 5-20 °, so that the arrangement can disturb air flow and disturb vibration frequency, thereby reducing noise. The first upper side 113 and the first lower side 114 of the quadrangle are first curve segments protruding upwards and downwards respectively, and the left end point and the right end point of the first upper side 113 are not at the same height, and the left end point and the right end point of the first lower side 114 are not at the same height, so that when the first pattern block 11 is in contact with the ground, the first upper side 113 can be gradually in contact with the ground, and the generated noise is reduced.

As shown in fig. 1, the second block 12 is also substantially quadrangular, but the length of the quadrangle in the longitudinal direction is smaller than that in the transverse direction. The left and right sides of the quadrangle are defined as a second left side 121 and a second right side 122, respectively, and the upper and lower sides are defined as a second upper side 123 and a second lower side 124, respectively. The second left side 121 and the second right side 122 are second straight line segments parallel to each other, and the second straight line segments are parallel to the tread center line, that is, the second left side 121 and the second right side 122 are vertically arranged. The second upper side 123 and the second lower side 124 of the quadrangle are respectively second curve sections protruding upwards and downwards, the left end point and the right end point of the second upper side 123 are not at the same height, the left end point and the right end point of the second lower side 124 are not at the same height, and when the second pattern block 12 contacts with the ground, the second upper side 123 can gradually contact with the ground, so that noise is reduced.

Comparing the shapes of the first pattern block 11 and the second pattern block 12, the two patterns are obviously different, so that noise is dispersed, superposition of sound energy is avoided, and the purpose of noise reduction is finally achieved.

In addition, it should be noted that the lengths of the two first blocks 11 adjacent up and down (i.e., the lengths of the first left side 111 and the first right side 112) are different, that is, the distance between the two second blocks 12 adjacent up and down is different, and the distance between the shoulder blocks 21 hereinafter is also different, which makes the tire have different pitches, thereby avoiding noise from being superimposed.

Since the upper and lower boundaries of the lateral groove 5 are defined by the first block 11 and the second block 12, the lateral groove 5 as a whole is a curve protruding upward or downward, and the left end point and the right end point of the lateral groove 5 are not at the same height, that is, the lateral groove 5 is obliquely arranged, and the left and right sides of the lateral groove 5 gradually contact the ground when the tire rolls, reducing the noise that occurs. Specifically, the angle between the connecting line of the left end point and the right end point of the transverse groove 5 and the tread width direction is 10-45 °.

As shown in fig. 1, a plurality of heat conduction grooves 6 which are recessed towards the inner side of the tread and extend longitudinally and are distributed transversely are formed between the second upper side edge 123 and the second lower side edge 124 of the second block 12, the depth of each heat conduction groove 6 is 0-3mm, and the heat conduction grooves 6 form a zigzag heat conduction structure (see fig. 2) on the second block 12, the heat conduction structure provides a heat conduction channel, increases the surface area, and can effectively conduct heat and improve the heat radiation performance of the tread.

Be provided with a plurality of vortex structure in outside tread groove 3 and the inboard tread groove 4 (if have), air can collide with vortex structure when flowing through vortex structure to form the vortex, change the flow direction originally promptly, disturb the air flow characteristic, reduce the noise that gas motion produced.

As shown in fig. 1, the outer grooves 3 and the inner grooves 4 (if any) are each composed of a plurality of groove segments which are connected to each other but staggered at the connection, and the groove segments are disposed obliquely, which causes the outer grooves 3 and the inner grooves 4 to form a zigzag shape as a whole, and turbulent flow structures in the form of barbs which are projected to the inside of the groove segments are formed in the groove segments, to be precise, barbed surfaces are formed on both sides of the grooves, and the barbed surfaces can be regarded as turbulent flow structures in the above.

Specifically, on the boundary line on the left side of the inner rib 1, the joints of the first left side edge 111 of the first block 11 and the second left side edge 121 of the second block 12 are laterally staggered with each other, so that a first inverted surface 13 is formed; more specifically, the upper end of the first left side 111 of the first block 11 is aligned with the lower end of the second left side 121 of the second block 12, i.e., the groove section is continuous thereto, but the lower end of the first left side 111 of the first block 11 is offset from the upper end of the second left side 121 of the second block 12, i.e., the groove section is offset therefrom, so that the first inverted-raised surface 13 is formed between the lower side of the first block 11 and the upper side of the second block 12.

On the boundary line of the right side of the inner rib 1, the connection positions of the first right side edge 112 of the first pattern block 11 and the second right side edge 122 of the second pattern block 12 are staggered with each other in the transverse direction, so that a second barb surface 14 is formed; more specifically, the upper end of the first right side 112 of the first block 11 is offset from the lower end of the second right side 122 of the second block 12, i.e., the groove segment is offset therefrom, and the lower end of the right side of the first block 11 is aligned with the upper end of the right side of the second block 12, i.e., the groove segment is continuous therefrom. Thereby forming a second barbed surface 14 between the upper side of the first block 11 and the lower side of the second block 12.

The side of the outer groove 3 facing the inner rib 1 is in a zigzag and offset shape due to the presence of the first and second

barbed surfaces

13 and 14. Meanwhile, if the number of the inner ribs 1 is two or more, the inner grooves 4 are also zigzag-shaped.

In order to give the grooves a more tortuous shape, the boundary line of the outer rib 2 is also tortuous, i.e. a third barbed surface 20 is provided on the outer rib 2, the position of the third barbed surface 20 approximately corresponding to the position of the second block 12, which will give the entire outer groove 3 a tortuous shape.

Specifically, the third barbed surface 20 is implemented by: on the outer rib 2, a plurality of shoulder blocks 21 are provided, which are connected to each other, and the joints of the upper and lower shoulder blocks 21 are displaced from each other to form a third barbed surface 20.

When the air current flows in groove (mainly outside groove 3), can produce the collision at the position and the lateral wall of barb face, the direction that the air flows will change, and then forms the vortex to disturb outside air current flow characteristic in the groove, reduce the noise that the inside gas motion of groove (especially outside groove 3) produced.

Note also that the inner side face of the shoulder block 21 has a first edge line 211 and a second edge line 212 connected to each other, the first edge line 211 is located substantially corresponding to the first block 11, and the first edge line 211 is parallel to the first left side 111 (or the first right side 112). The second edge 212 is located substantially corresponding to the second block 12, and the second edge 212 is parallel to the second left side 121 (or the second right side 122) of the second block 12. The distance between the first edge 211 and the first block 11 is greater than the distance between the second edge 212 and the second block 12, i.e. the groove width of the outer groove 3 is not uniform, which can change the flow characteristics of air in the groove and is beneficial to reducing noise.

As shown in fig. 3, a sickle-shaped groove 7 extending outward in the transverse direction is provided on the third barb surface 20 of the shoulder block 21, the inner end of the sickle-shaped groove 7 is communicated with the outer groove 3, and the section of the sickle-shaped groove 7 in the depth direction is stepped, that is, a step surface 71 is provided inside the sickle-shaped groove 7. When the block comes into contact with the ground during running of the tire, pumping noise is generated due to the pumping effect. Because the sickle-shaped groove 7 is internally provided with the step surface 71, the sickle-shaped groove has certain rigidity and can bear certain acting force when the pattern blocks are contacted with the ground, so that the pattern groove deformation is reduced, the volume change of the groove cavity is reduced, the air compression ratio is reduced, and the pumping noise of the tire is reduced.

The Helmholtz resonance sound absorption principle is widely applied to reducing the resonance of an aircraft engine, and also applied to exhaust pipes of motorcycles and automobiles.

As shown in FIG. 4, the first sound absorbing structure 8 extending toward the inside of the tread is provided on the side wall of the outer groove 3 near the outer side of the tread, a plurality of the first sound absorbing structures 8 are provided at intervals in the extending direction of the outer groove 3, the first sound absorbing structure 8 includes a first passage 81 extending inwardly from the side wall surface of the outer groove 3, and the first passage 81 has a narrow-neck cylindrical shape, where the narrow neck is a diameter relative to the first spherical cavity 82 described later, which must be smaller than the diameter of the first spherical cavity 82, and preferably smaller than one-half of the first spherical cavity 82. The axis of the first passage 81 is parallel to the width direction of the tire. At the end of the first channel 81, a first spherical cavity 82 is provided, the center of sphere of the first spherical cavity 82 being located on the axis of the first channel 81. When the tire driving process, the noise is generated, the first sound absorption structure 8 can absorb the noise with a certain frequency, and the air can vibrate in the first spherical cavity 82, so that the air can rub against the inner wall of the first spherical cavity 82 to generate heat energy, so that the sound energy is converted into mechanical energy firstly and then into internal energy to achieve the sound absorption effect.

As shown in fig. 5, the second sound absorbing structure 9 extending towards the inside of the tread is arranged at the bottom of the transverse groove 5, several second sound absorbing structures 9 are arranged at intervals in the extending direction of the transverse groove 5, the second sound absorbing structure 9 comprises a second channel 91 extending downwards from the bottom of the transverse groove 5, and the second channel 91 is in the shape of a narrow-neck cylinder, wherein the diameter of the narrow neck is smaller than that of the second spherical cavity 92, and preferably smaller than half of the second spherical cavity 92, compared with the second spherical cavity 92. The axial direction of the second channel 91 is parallel to the normal direction of the tread position of the second channel 91, more precisely, the axis of the second channel 91 intersects the line around which the tire rotates. At the end of the second channel 91, a second spherical cavity 92 is provided, the center of sphere of the second spherical cavity 92 being located on the axis of the second channel 91. When the tire driving process, the noise is generated, the second sound absorption structure 9 can absorb the noise with a certain frequency, and the air can vibrate in the second spherical cavity 92, so that the air can rub against the inner wall of the second spherical cavity 92 to generate heat energy, so that the sound energy is converted into mechanical energy firstly and then into internal energy to achieve the sound absorption effect.

It should be noted that the first sound absorbing structure 8 and the second sound absorbing structure 9 can be used simultaneously or only one of them can be used, and generally, the sound absorbing effect achieved by the first sound absorbing structure 8 is better than that achieved by the second sound absorbing structure 9. The specific parameters of the first and second sound-absorbing

structures

8, 9 can be referred to the structure of the helmholtz resonator.

In summary, the present invention has the advantage that the first sound absorbing structure 8 and the second sound absorbing structure 9 can reduce noise during running of the tire by resonance sound absorption. The sickle-shaped groove 7 positioned at the tire shoulder can reduce the air pumping noise of the tire by reducing the air compression ratio. The outer groove 3 has a barbed meandering shape, and can reduce the noise of the tire by disturbing the flow characteristics of the air flow within the groove. The inclined arrangement of the transverse grooves 5 makes it gradually contact the ground, thereby reducing noise. The surface of the second pattern block 12 is provided with the zigzag heat conduction structure 6, so that a heat conduction channel is provided, heat can be effectively conducted, and the heat radiation performance of the tire is improved.

Claims

1. A tire with resonance sound absorption and noise reduction functions is provided with a tire pattern on a tread, the tire pattern comprises an inner rib (1) arranged in the middle of the tread and outer ribs (2) arranged on two sides of the tread, an outer groove (3) sunken towards the inner side of the tread is formed between the inner rib (1) and the outer rib (2), and the inner rib (1), the outer rib (2) and the outer groove (3) respectively extend along the circumferential direction of the tread and form a ring shape;

it is characterized in that the preparation method is characterized in that,

a first sound absorption structure (8) extending towards the inner part of the tread is arranged on the groove wall of the outer groove (3) close to the outer side of the tread, and the first sound absorption structure (8) comprises a first channel (81) with the outer end connected with the groove wall of the outer groove (3) and a first spherical cavity (82) connected with the inner end of the first channel (81); the centre of sphere of the first spherical cavity (82) is positioned on the axis of the first channel (81), and the diameter of the first spherical cavity (82) is larger than that of the first channel (81); the first channel (81) and the first spherical cavity (82) form a Helmholtz resonator;

a plurality of transverse grooves (5) are arranged on the inner side rib (1) at intervals along the circumferential direction of the tread, second sound absorption structures (9) extending towards the interior of the tread are arranged at the groove bottoms of the transverse grooves (5), and each second sound absorption structure (9) comprises a second channel (91) with the outer end connected to the groove bottom of each transverse groove (5) and a second spherical cavity (92) connected to the inner end of each second channel; the center of the sphere of the second spherical cavity (92) is positioned on the axis of the second channel (91), and the diameter of the second spherical cavity (92) is larger than that of the second channel (91); the second channel (91) and the second spherical cavity (92) form a Helmholtz resonator.

2. A resonant acoustic noise reduction tire according to claim 1, wherein the direction of the axis of the first channel (81) is parallel to the width of the tread; the first bulbous cavity (82) has a diameter greater than twice the diameter of the first passageway (81).

3. A resonant acoustic noise reduction tire according to claim 1, wherein the second channel (91) has an axis direction parallel to the normal direction of the tread surface of the second channel (91); the diameter of the second spherical cavity (92) is greater than twice the diameter of the second channel (91).

4. A tire of resonance sound absorption noise reduction according to claim 1, characterized in that the outside groove (3) comprises a plurality of groove segments connected with each other, the groove segments are arranged obliquely, the joint of the upper and lower groove segments is staggered, so that a plurality of turbulent flow structures protruding towards the inner side of the groove are formed on the sidewall of the outside groove (3), and the air flows through the turbulent flow structures, collides with the turbulent flow structures, changes the flow direction and reduces the noise.

5. The resonant sound absorbing and noise reducing tire of claim 4, wherein the turbulator structure comprises: a first barb surface (13) or a second barb surface (14) located on the groove wall of the outer groove (3) near the inner side of the tread, and a third barb surface (20) located on the groove wall of the outer rib (2) near the outer side of the tread, the first barb surface (13), the second barb surface (14) and the third barb surface (20) all extending laterally and into the outer groove (3).

6. A resonant acoustic noise reduction tire according to claim 5, wherein the inner rib (1) comprises first blocks (11) and second blocks (12) arranged alternately,

on the left side of the inner rib (1), the joints of the first left side (111) of the first pattern block (11) and the second left side (121) of the second pattern block (12) are staggered with each other in the transverse direction, so that a first barb surface (13) is formed;

on the right side of the inner rib (1), the joints of the first right side (112) of the first pattern block (11) and the second right side (122) of the second pattern block (12) are staggered with each other in the transverse direction, so that a second barb surface (14) is formed;

the outer pattern rib (2) comprises a plurality of shoulder pattern blocks (21) which are mutually connected, and the connection positions of the upper shoulder pattern block (21) and the lower shoulder pattern block (21) are mutually staggered in the transverse direction, so that a third barb surface (20) is formed.

7. A tire with resonance sound absorption and noise reduction as set forth in claim 6, wherein the first block (11) and the second block (12) form between them a lug groove (5) extending in the lateral direction and having both ends connected to the left and right sides of the inner rib (1), the lug groove (5) is disposed obliquely, and the line connecting the left end point and the right end point of the lug groove (5) forms an angle of 10 to 45 ° with the tread width direction.

8. A tire with sound absorption and noise reduction according to claim 6, wherein the connecting points of the shoulder blocks (21) are provided with sickle-shaped grooves (7) extending towards the outer side of the tread, the inner sides of the sickle-shaped grooves (7) are communicated with the outer side grooves (3), and step surfaces (71) are arranged in the sickle-shaped grooves (7).

9. A tire with resonance sound absorption and noise reduction as claimed in claim 6, wherein a plurality of heat conduction grooves (6) which are recessed towards the inner side of the tire tread and extend longitudinally and are distributed transversely are arranged between the upper side edge (123) and the lower side edge (124) of the second block (12), and the depth of the heat conduction grooves (6) is 0-3mm.