A tire high stability pattern structure

Abstract

The present invention discloses a high-stability tire pattern structure, which relates to the technical field of load-bearing tire pattern design. The high-stability tire pattern structure includes: a plurality of zigzag grooves extending and distributed along the circumferential direction of the tread, and pattern ribs located between two adjacent zigzag grooves and extending and distributed along the circumferential direction; wherein, on the groove walls on both sides of the zigzag groove, there are respectively provided a plurality of sickle-shaped smooth bevel cutting areas continuously distributed along the circumferential direction; the smooth bevel cutting areas are cutting surfaces that cut obliquely to the zigzag groove walls, and the cutting surfaces are of equal depth and unequal width structures. The present invention, by pre-setting the smooth bevel cutting areas on the groove walls, and then combining the variable angle design of the groove walls, can reduce the uneven wear of the groove walls caused by dragging, and prevent the occurrence of stress curling wear on the groove edges before cutting.

Description

Technical Field

[0001] The invention relates to the technical field of load-carrying tire pattern design, and in particular to a tire high-stability pattern structure. Background Art

[0002] With the gradual increase in my country's infrastructure construction, the mechanical equipment involved in the construction of traditional industries such as petrochemicals and new energy such as wind power has gradually evolved into large and heavy-duty. Therefore, the future development of large-scale logistics is positive. Among them, road large-scale transportation has become a major component of domestic large-scale logistics due to its strong adaptability, high transfer efficiency and achievable purpose.

[0003] The main type of vehicle used for highway transportation of large items is a tractor-trailer combination, where the trailer includes ordinary multi-axle trailers and axle vehicles. Among them, the trailer of a large-item vehicle is longer, and the trailer wheels mostly have no steering mechanism, no drive mechanism, but a braking mechanism. When the vehicle is driving, the trailer tires are in a free-rolling state, and its forward trajectory is determined by the driving state of the tractor.

[0004] At present, when a large truck is turning, the tugboat tire will be pulled and dragged by the large truck because the tugboat tire has no power steering mechanism. At this time, the dragging resistance on the tugboat tire is large, causing uneven wear on the tread groove wall of the tugboat tire, resulting in stress curling wear on the tread groove wall of the tugboat tire, affecting the normal use of the tugboat tire.

[0005] Therefore, how to solve the above problems and design a tugboat tire that avoids uneven wear of the tugboat tire when a large vehicle is turning is a technical problem that technicians in this field urgently need to solve.

[0006] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0007] In response to the above technical problems, an embodiment of the present invention provides a high-stability tire pattern structure to solve the problems raised in the above background technology.

[0008] The present invention provides the following technical solutions:

[0009] A high-stability tire pattern structure, comprising:

[0010] Multiple zigzag grooves extending along the circumference of the tread, and

[0011] A rib located between two adjacent zigzag grooves and extending along the circumferential direction;

[0012] Among them, on the groove walls on both sides of the zigzag groove, there are several sickle-shaped smooth inclined cutting areas distributed continuously along the circumferential direction;

[0013] The smooth slope cutting area is a cutting surface that cuts obliquely to the zigzag groove wall, and the cutting surface has a structure of equal depth and unequal width.

[0014] Preferably, at one end of the smooth bevel cutting zone, the included angle between the bottom edge of the cutting surface and the circumferential line is in the range of 25 degrees to 29 degrees, the included angle between the top edge of the cutting surface and the circumferential line is in the range of 40 degrees to 44 degrees, and the included angle between the bottom edge of the cutting surface and the circumferential line is less than the included angle between the top edge of the cutting surface and the circumferential line.

[0015] At the other end of the smooth bevel cutting area, the angle between the bottom edge of the cutting surface and the circumferential line is in the range of 6 degrees to 9 degrees, the angle between the top edge of the cutting surface and the circumferential line is in the range of 11 degrees to 14 degrees, and the angle value between the bottom edge of the cutting surface and the circumferential line is less than the angle value between the top edge of the cutting surface and the circumferential line.

[0016] Preferably, the plurality of zigzag grooves include a longitudinal center groove provided on the center line of the tread, and longitudinal side grooves provided on the shoulder portions; the longitudinal center groove and the longitudinal side groove have the same width and depth;

[0017] Among them, the longitudinal center pattern groove and the longitudinal side pattern groove divide the entire tread into two middle pattern ribs and two shoulder pattern ribs extending in the circumferential direction.

[0018] Preferably, the longitudinal side grooves on both sides are respectively distributed with a center rotation offset on both sides of the longitudinal central groove; wherein, the center rotation offset distance of the longitudinal side grooves on both sides of the longitudinal central groove is 1 / 3 of the pattern pitch length.

[0019] Preferably, the zigzag groove is S-shaped, and the groove walls on both sides are designed to be parallel;

[0020] Among them, the groove wall of the zigzag groove includes a number of continuously distributed S-shaped zigzag units, and the S-shaped zigzag unit includes a connected zigzag groove segment and a straight groove segment; the cross-sectional shape of the zigzag groove is an asymmetric polygonal V-shape, and its groove bottom shape is an arc shape.

[0021] Preferably, the width of the shoulder pattern ribs is 1.2-1.45 times the width of the middle pattern ribs.

[0022] Preferably, a plurality of wavy transverse grooves are arranged on the middle pattern rib at equal intervals along the circumferential direction of the tread, and the two ends of the wavy transverse grooves are respectively connected to the longitudinal central main groove and the longitudinal side groove;

[0023] Among them, the wavy transverse groove divides the central pattern rib into several S-shaped pattern blocks of uniform size distributed along the circumference of the tread.

[0024] Preferably, the angle between the wavy transverse groove and the tread circumference is in the range of 50 degrees to 56 degrees, with trumpet-shaped open gaps at both ends and a comb-shaped reinforcement groove in the middle;

[0025] The cross-sectional shape of the wave-shaped transverse groove is a symmetrical step shape, and the wave-shaped transverse groove is a groove of unequal depth;

[0026] A plurality of vertically arranged comb teeth are arranged at intervals in the comb-shaped reinforcement groove.

[0027] Preferably, the S-shaped tread block is provided with an S-shaped fine knife groove, which is composed of a plurality of fine grooves that are staggered and inserted obliquely into the rubber block, and the plurality of fine grooves are non-vertical equal-depth structures.

[0028] Preferably, a plurality of polygonal grooves of unequal depth are provided on the shoulder pattern ribs at intervals along the tread circumference, and the cross-sectional shape thereof is symmetrical and stepped.

[0029] The embodiment of the present invention provides a high-stability tire pattern structure, which has the following beneficial effects:

[0030] 1. This invention reduces uneven wear of the groove wall caused by dragging by pre-setting a smooth bevel cutting area on the groove wall, combined with a variable angle design of the groove wall, and prevents the occurrence of stress curling wear on the groove edge before cutting.

[0031] 2. By designing the zigzag groove into an S-shaped zigzag pattern and adding straight groove sections to the zigzag groove, the tire achieves excellent drainage performance while ensuring anti-skid and braking performance.

[0032] 3. The S-shaped tread blocks and wide shoulder design ensure low deformation of the middle tread blocks and rigidity of the shoulder treads, thus improving the load and wear resistance of the overall tread pattern.

[0033] 4. The oblique, unequal-width, wavy transverse grooves provide braking performance while also equalizing the rigidity of the entire tread. The comb-shaped reinforcement grooves they contain both dissipate heat and break up water film, improving the tire's grip on wet and slippery roads at high speeds.

[0034] 5. By designing S-shaped fine sipes that are staggered and inserted obliquely into the rubber blocks, the rigidity of the tread blocks is equalized, while ensuring that the tire can cut through the water film more quickly on both the approaching and departure sides during driving, thereby improving grip.

[0035] 6. The shoulder slots are designed with polygonal and unequal depths to maximize heat dissipation while ensuring shoulder rigidity.

[0036] 7. In summary, the design of the above structures reasonably balances the stable relationship between the tire pattern's load resistance, skid resistance, grip, braking performance, wear uniformity, and heat dissipation, meeting the higher requirements of large vehicle tugs for tire pattern stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the structure of the tire pattern of the present invention;

[0038] Figure 2 Schematic diagram of the structure of the zigzag groove in the present invention;

[0039] Figure 3 Schematic diagram of the force structure of the tread block;

[0040] Figure 4 Schematic diagram of the force structure of the groove wall edge of the tread block;

[0041] Figure 5 This is a schematic diagram showing the uneven wear on the groove wall.

[0042] Figure 6 For the present invention Figure 1 Pattern cross-section view in the B-B' direction;

[0043] Figure 7 For the present invention Figure 1 Cross-sectional view of the pattern in the CC direction;

[0044] Figure 8 For the present invention Figure 1 Pattern cross-section view in the EE direction;

[0045] Figure 9 For the present invention Figure 1 Pattern cross-section view in the F-F' direction;

[0046] Figure 10 For the present invention Figure 1 Cross-sectional view of the pattern in the H-H' direction;

[0047] Figure 11 For the present invention Figure 1 Pattern cross-section view in the KK direction;

[0048] Figure 12 For the present invention Figure 1 A partial enlarged view of middle A;

[0049] Among them, 1-longitudinal center pattern groove; 2-longitudinal side pattern groove; 3-shoulder pattern rib; 4-middle pattern rib; 5-smooth inclined cutting area; 6-S-shaped fine knife groove; 7-polygonal unequal depth groove; 41-wave-shaped transverse groove; 81-zigzag groove section; 82-straight groove section. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] See Figures 1-12 .

[0052] In response to the problems mentioned in the above background technology, an embodiment of the present invention provides a high-stability tire pattern structure to solve the above technical problems. The technical solution is as follows:

[0053] A high-stability tire pattern structure, comprising:

[0054] Multiple zigzag grooves extending along the circumference of the tread, and

[0055] A rib located between two adjacent zigzag grooves and extending along the circumferential direction;

[0056] Among them, on the groove walls on both sides of the zigzag groove, there are respectively provided with a number of sickle-shaped smooth inclined cutting areas 5 distributed continuously along the circumferential direction;

[0057] The smooth bevel cutting area 5 is a cutting surface that cuts obliquely to the zigzag groove wall, and the cutting surface is a structure of equal depth and unequal width; specifically, the depth of the smooth bevel cutting area 5 is 0.15-0.32 times that of the zigzag groove.

[0058] Figure 3 As shown in the figure, when a large truck is turning, the tug tire is subjected to the traction force of the vehicle and the lateral drag force because it has no steering mechanism. The two form an upward diagonal resultant force, and the cutting direction of this cutting surface is consistent with the trend of the direction of the above resultant force. After the groove wall is cut, the lateral drag angle of the groove wall edge when the tug tire touches the ground is increased, which reduces the resistance of the large truck towing the tug tire when turning, thereby reducing the uneven wear of the groove wall caused by dragging, and preventing the occurrence of stress curling wear on the groove edge before cutting. Figure 4 , Figure 5 shown.

[0059] In this embodiment, at one end of the smooth bevel cutting zone 5, the included angle α1 between the bottom edge of the cutting surface and the circumferential line is in the range of 25 degrees to 29 degrees, and the included angle β1 between the top edge of the cutting surface and the circumferential line is in the range of 40 degrees to 44 degrees, and α1<β1;

[0060] At the other end of the smooth bevel cutting zone 5, the included angle α2 between the bottom edge of the cutting surface and the circumferential line is in the range of 6 degrees to 9 degrees, and the included angle β2 between the top edge of the cutting surface and the circumferential line is in the range of 11 degrees to 14 degrees, and α2 < β2

[0061] The settings of the cutting angles in the smooth slope cutting area 5 determine the sizes of the various sections of the sickle-shaped slope cutting area with variable width, while ensuring that the direction of the cutting area into the ground is consistent with the upward force direction trend formed by the forward traction force and the lateral drag force of the vehicle.

[0062] In this embodiment, the plurality of zigzag grooves include a longitudinal center groove 1 provided on the centerline of the tread, and longitudinal side grooves 2 provided on the shoulder portions of the tread; the longitudinal center groove 1 and the longitudinal side grooves 2 have the same width and depth;

[0063] Specifically, the width of the longitudinal center groove 1 and the longitudinal side groove 2 ranges from 11 to 14 mm, and the depth ranges from 12 to 14 mm, with a width-to-depth ratio of 0.72 to 0.95. A reasonable width-to-depth ratio ensures stability and drainage of the grooves during driving.

[0064] The longitudinal center groove 1 and the longitudinal side groove 2 divide the entire tread into two middle pattern ribs 4 and two shoulder pattern ribs 3 extending in the circumferential direction.

[0065] Figure 1 As shown, the longitudinal side grooves 2 on both sides are respectively distributed on both sides of the longitudinal central groove 1 with a center rotation offset; wherein, the center rotation offset distance b of the longitudinal side grooves 2 on both sides of the longitudinal central groove 1 is 1 / 3 of the pattern pitch length;

[0066] The longitudinal side grooves 2 on both sides are designed with a rotationally staggered structure to ensure the consistency of the groove-to-rib ratio in the tread contact area, that is, to ensure that the sea-to-road ratio in the contact area is consistent and uniform. When the sea-to-road ratio in the contact area is consistent and uniform, the tire has the same tread block area each time it touches the ground during one rolling cycle, thereby ensuring uniform pattern wear and wear resistance.

[0067] Figure 2 As shown, the zigzag groove is S-shaped, and the groove walls on both sides are designed to be parallel;

[0068] The groove wall of the zigzag groove includes a plurality of continuously distributed S-shaped zigzag units, each of which includes a connected zigzag groove segment 81 and a straight groove segment 82;

[0069] The cross-section of the zigzag groove is an asymmetric polygonal V-shape, and the groove bottom is an arc shape;

[0070] Preferably, the angle of the zigzag groove segment 81 of the groove wall of the zigzag groove evolves from 12 degrees to 26 degrees, so that the S-shaped zigzag unit is zigzag at the opening end of the groove.

[0071] Specifically, the angle of the zigzag groove segment 81 refers to the different angles between the tread groove wall of the zigzag groove segment 81 and the radial direction, which evolves from 12 degrees to 26 degrees, that is, the groove edge angle is designed with a variable angle. The angle of the groove wall of the protruding part of the groove edge is smaller, which is 12 degrees, and the angle of the concave part is larger, which is 26 degrees. The volume and rigidity of the pattern block in the concave part are increased, and the rigidity of the groove walls on both sides can be equalized. During the rolling process of the tire, it is ensured that the concave part will not be excessively worn due to low rigidity, thereby reducing the uneven wear of the tread groove wall.

[0072] Figure 6 As shown in the figure, the cross-sectional shape of the zigzag groove is designed as an asymmetric polygonal V-shaped structure, that is, the angle of the groove edge is a variable angle design, the angle of the protruding part of the groove edge is smaller, and the angle of the concave part is larger, which can equalize the rigidity of the groove walls on both sides. During the rolling process of the tire, it is ensured that the concave part will not be excessively worn due to low rigidity, thereby reducing the uneven wear of the groove wall.

[0073] In this embodiment, the width of the shoulder pattern rib 3 is 1.2-1.45 times the width of the middle pattern rib 4; the overall pattern is designed with a wide shoulder to ensure the rigidity of the shoulder pattern and improve the anti-eccentric wear ability.

[0074] In this embodiment, a plurality of wavy transverse grooves 41 are arranged on the middle pattern rib 4 at equal intervals along the circumferential direction of the tread, and the two ends of the wavy transverse groove 41 are connected to the longitudinal center main groove 1 and the longitudinal side groove 2 respectively;

[0075] Among them, the wavy transverse groove 41 divides the middle pattern rib 4 into several S-shaped pattern blocks of uniform size distributed along the circumference of the tread; the S-shaped pattern block has a large overall rubber volume and strong overall rigidity from entering the ground to leaving the ground, ensuring low deformation of the middle pattern block and improving the overall load and wear resistance of the pattern.

[0076] In this embodiment, the angle between the wavy transverse groove 41 and the tread circumference is in the range of 50 degrees to 56 degrees, with trumpet-shaped open gaps at both ends and a comb-shaped reinforcement groove in the middle.

[0077] The cross-sectional shape of the wave-shaped transverse groove 41 is a symmetrical step shape, and the wave-shaped transverse groove 41 is a groove of unequal depth; specifically, the groove width on both sides of the wave-shaped transverse groove 41 is 2-4 mm, and the depth is 0.2-0.4 times the depth of the zigzag groove;

[0078] The design of the wavy transverse grooves 41 can reduce the rigidity of the entire tread rib. After being evenly distributed, the rigidity can be equalized, while increasing the friction between the tread and the ground to provide braking performance.

[0079] Figure 8 As shown, a plurality of vertically arranged comb teeth are provided in the comb-shaped strengthening groove at intervals; specifically, the width of the comb-shaped strengthening groove is 1.4-1.8 times the width of the grooves at both ends of the corrugated transverse groove 41, and the depth is 3-4.5 times the depth of the grooves at both ends;

[0080] The comb-shaped reinforcement grooves have the functions of heat dissipation and puncturing water films, improving the tire's grip performance when driving at high speed on wet roads.

[0081] Figure 9 、 Figure 10 As shown; the S-shaped pattern block is provided with an S-shaped fine knife groove 6, which is composed of a plurality of fine grooves that are staggered and inserted obliquely into the rubber block. Adjacent fine grooves are staggered with each other left and right with their center lines as the baseline; the plurality of fine grooves are non-vertical equal-depth structures.

[0082] Specifically, the width of the S-shaped sipe 6 is in the range of 0.8-1.5 mm, and the depth is 0.3-0.6 times the depth of the zigzag groove.

[0083] The design of the non-vertical equal-depth structure groove in the S-shaped fine knife groove 6 increases the volume inserted into the pattern block and equalizes the internal rigidity of the pattern block; at the same time, when driving on wet land, the water layer on the ground can enter the fine groove faster and cut through the water film faster.

[0084] Figure 11 As shown; the high stability tire pattern structure according to claim 3 is characterized in that a plurality of polygonal grooves 7 of unequal depth are provided on the shoulder pattern ribs 3 at intervals along the tread circumference, and the cross-sectional shape thereof is a symmetrical stepped type.

[0085] Specifically, the polygonal unequal-depth grooves 7 designed on the shoulder have a width range of 10-15 mm, a depth of 3 mm in the middle, and a depth of 2 mm on both sides. While ensuring the rigidity of the shoulder, the rubber thickness of the shoulder is reduced to maximize its heat dissipation effect.

[0086] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0087] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0088] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solutions and concepts of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A high-stability tire pattern structure, characterized in that: include: Multiple zigzag grooves extending along the circumference of the tread, and A rib located between two adjacent zigzag grooves and extending along the circumferential direction; Among them, on the groove walls on both sides of the zigzag groove, there are several sickle-shaped smooth inclined cutting areas distributed continuously along the circumferential direction; The smooth slope cutting area is a cutting surface that cuts obliquely to the zigzag groove wall, and the cutting surface has a structure of equal depth and unequal width; At one end of the smooth bevel cutting zone, the included angle between the bottom edge of the cutting surface and the circumferential line is in the range of 25 degrees to 29 degrees, the included angle between the top edge of the cutting surface and the circumferential line is in the range of 40 degrees to 44 degrees, and the included angle between the bottom edge of the cutting surface and the circumferential line is less than the included angle between the top edge of the cutting surface and the circumferential line; At the other end of the smooth bevel cutting area, the angle between the bottom edge of the cutting surface and the circumferential line is in the range of 6 degrees to 9 degrees, the angle between the top edge of the cutting surface and the circumferential line is in the range of 11 degrees to 14 degrees, and the angle value between the bottom edge of the cutting surface and the circumferential line is less than the angle value between the top edge of the cutting surface and the circumferential line.

2. The high stability tire pattern structure according to claim 1, characterized in that: The plurality of zigzag grooves include a longitudinal center groove formed in the centerline of the tread and longitudinal side grooves formed in the shoulder portions; the width and depth of the longitudinal center groove and the longitudinal side groove are respectively the same; Among them, the longitudinal center pattern groove and the longitudinal side pattern groove divide the entire tread into two middle pattern ribs and two shoulder pattern ribs extending in the circumferential direction.

3. The high stability tire pattern structure according to claim 2, characterized in that: The longitudinal side grooves on both sides are respectively distributed in a center rotational staggered manner on both sides of the longitudinal central groove; wherein, the center rotational staggered distance of the longitudinal side grooves on both sides of the longitudinal central groove is 1 / 3 of the pattern pitch length.

4. The high stability tire pattern structure according to claim 1, characterized in that: The zigzag groove is S-shaped, and the groove walls on both sides are designed to be parallel; Among them, the groove wall of the zigzag groove includes a number of continuously distributed S-shaped zigzag units, and the S-shaped zigzag unit includes a connected zigzag groove segment and a straight groove segment; the cross-sectional shape of the zigzag groove is an asymmetric polygonal V-shape, and its groove bottom shape is an arc shape.

5. The high stability tire pattern structure according to claim 2, characterized in that: The width of the shoulder pattern ribs is 1.2-1.45 times the width of the middle pattern ribs.

6. The high stability tire pattern structure according to claim 2, characterized in that: A plurality of wavy transverse grooves are arranged on the middle pattern rib at equal intervals along the circumferential direction of the tread, and the two ends of the wavy transverse grooves are connected to the longitudinal center groove and the longitudinal side groove respectively; Among them, the wavy transverse groove divides the central pattern rib into several S-shaped pattern blocks of uniform size distributed along the circumference of the tread.

7. The high stability tire pattern structure according to claim 6, characterized in that: The angle between the wavy transverse groove and the tread circumference is in the range of 50-56 degrees, with trumpet-shaped open gaps at both ends and a comb-shaped reinforcement groove in the middle. The cross-sectional shape of the wave-shaped transverse groove is a symmetrical step shape, and the wave-shaped transverse groove is a groove of unequal depth; A plurality of vertically arranged comb teeth are arranged at intervals in the comb-shaped reinforcement groove.

8. The high stability tire pattern structure according to claim 6, characterized in that: The S-shaped pattern block is provided with an S-shaped fine knife groove, which is composed of a plurality of fine grooves that are staggered and inserted obliquely into the rubber block. The plurality of fine grooves are non-vertical equal-depth structures.

9. The high stability tire pattern structure according to claim 2, characterized in that: A plurality of polygonal grooves of unequal depth are arranged on the shoulder pattern ribs along the circumferential direction of the tread, and the cross-sectional shape thereof is symmetrical and stepped.

Images