Off-the-road tire pattern with high saturation and high TKPH

Abstract

The utility model discloses an off-the-road tire pattern with high saturation and high TKPH. The off-the-road tire pattern comprises a crown middle pattern block and a shoulder pattern block, in the circumferential direction of the tire, crown middle transverse pattern grooves are formed between the adjacent crown middle pattern blocks, shoulder transverse pattern grooves are formed between the adjacent shoulder pattern blocks, and in the width direction of the tire, the adjacent crown middle transverse pattern grooves and the shoulder transverse pattern grooves are communicated to form transverse pattern grooves; longitudinal pattern grooves are formed between the adjacent crown middle pattern blocks and shoulder pattern blocks in the width direction of the tire; in the circumferential direction of the tire, the adjacent longitudinal pattern grooves are communicated with the transverse pattern grooves, and the depth of the longitudinal pattern grooves is 60-70% of the depth of the deepest parts of the transverse pattern grooves; the shoulder transverse pattern grooves are gradually widened from the crown center to the tire shoulder; and the saturation degree of the patterns is 70-75%. According to the utility model, the high saturation of the tire pattern is ensured, the cutting resistance of the tire is improved, the abrasion service life is prolonged, the TKPH of the tire is improved, and the tire is prevented from being damaged due to thermal delamination caused by heat generation.

Description

Technical Field

[0001] This utility model relates to the field of tire technology, specifically to a high-saturation and high-TKPH ​​engineering machinery tire tread pattern. Background Technology

[0002] In the harsh conditions of open-pit mines, tires require high-saturation tread patterns to improve their cut resistance, necessitating larger tread blocks. Conversely, for long-distance, high-speed driving, tires need higher total kilograms per mile (TKPH), typically achieved through additional cooling grooves. This creates a contradiction between the two performance requirements of high saturation and high TKPH, making it difficult for a single product to achieve both simultaneously. Because heat generation is a concern, tread saturation is usually lower (between 55-60%), and open shoulders are generally used, resulting in relatively isolated tread blocks. This leads to poor resistance to deformation and tearing under harsh conditions, and weaker puncture resistance. This leads to tires being susceptible to damage from cuts and punctures in the early and middle stages of use under harsh road conditions, resulting in a shorter lifespan. Additionally, due to their low tread saturation, they wear out too quickly and are more prone to punctures and cuts in the later stages, leading to their scrapping. In long-distance, high-speed scenarios, tires with high-saturation tread patterns are prone to problems such as delamination of the crown and shoulder in the early and middle stages of use. Mud can easily get trapped in the tire's cooling grooves, hindering heat dissipation and causing problems such as decreased tire traction and tire slippage. Furthermore, in the rainy season or in harsh working conditions with a lot of water, the center of the tire crown is prone to premature wear, exposing the belt steel wires and rendering the tire unusable. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high saturation and high TKPH engineering machinery tire tread pattern, which not only ensures that the tire tread pattern has a sufficiently high saturation, improves the tire's cut resistance and wear life, but also improves the tire's TKPH, ensuring that the tire is not damaged by thermal delamination due to heat generation, and can also ensure excellent traction performance in muddy road conditions.

[0004] The technical solution of this utility model is as follows:

[0005] The engineering machinery tire tread pattern features high saturation and high TKPH, comprising a crown tread block and a shoulder tread block. Along the tire circumference, adjacent crown tread blocks are connected by a crown transverse tread groove, and adjacent shoulder tread blocks are connected by a shoulder transverse tread groove. Along the tire width, adjacent crown transverse tread grooves and shoulder transverse tread grooves are connected to form a transverse tread groove. Along the tire width, adjacent crown tread blocks and shoulder tread blocks are connected by a longitudinal tread groove. Along the tire circumference, adjacent longitudinal tread grooves and transverse tread grooves are connected, and the depth of the longitudinal tread groove is 60-70% of the deepest point of the transverse tread groove. The shoulder transverse tread groove changes from narrow to wide from the crown to the shoulder. The saturation of the engineering machinery tire tread pattern is 70-75%.

[0006] Preferably, in the transverse tread groove, a crown reinforcing rib communicating with the longitudinal tread groove is provided between two adjacent crown tread blocks along the tire circumference.

[0007] Preferably, the height of the crown reinforcement gradually changes from low to high and then back to low from the crown center to the tire shoulder, with the highest point being 35-40% of the deepest part of the transverse tread groove and the lowest point being 10-15% of the deepest part of the transverse tread groove. The width of the crown reinforcement is 40-60% of the width of the driving surface.

[0008] Preferably, an anti-pinch stone protrusion is provided on one side of the shoulder pattern block; the anti-pinch stone protrusion is provided on one side of the long side of each shoulder pattern block, with a height of 40-60% of the height of the shoulder pattern block and a width of 2-5% of the width of the widest part of the transverse pattern groove.

[0009] Preferably, anti-clamping stone protrusions are provided on both sides of the long side of the crown pattern block and directly opposite the longitudinal pattern groove; the height of the anti-clamping stone protrusions is the same as that of the crown pattern block, and the width is 20-30% of the width of the transverse pattern groove at the crown position.

[0010] Preferably, a transverse air guide groove is provided at the center of the crown pattern block and the shoulder pattern block; the depth of the air guide groove is 5-10% of the deepest part of the transverse pattern groove, and the width of the air guide groove on the crown pattern block and the shoulder pattern block is 2-5% of the width of the crown pattern block and the shoulder pattern block, respectively.

[0011] Preferably, the crown pattern block is provided with an air pressurization groove; two air pressurization grooves are centrally symmetrically arranged on the crown pattern block.

[0012] Preferably, the air pressurization groove is connected to the air guide groove. The depth of the air pressurization groove is gradually changing, with the deepest point being the same as the depth of the air guide groove at the connection point. It gradually changes outward to be flush with the pattern block in the crown, and the width is 10-20% of the widest part of the pattern block.

[0013] Preferably, the junction of the longitudinal and transverse patterned grooves is an outwardly expanding opening structure.

[0014] Preferably, a heat dissipation groove is provided at the outer end of the transverse patterned groove on the shoulder.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] The tread pattern structure of this invention improves the stability of the tire structure, ensuring that the tire tread has a sufficiently high saturation, improving the tire's cut resistance and wear life, and also increasing the tire's TKPH, ensuring that the tire is not damaged by thermal delamination due to heat generation, and maintaining excellent traction performance in muddy road conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the high saturation and high TKPH engineering machinery tire tread pattern of this utility model.

[0018] In the diagram, 1 is the center tread block; 2 is the shoulder tread block; 201 is the upper shoulder tread block; 202 is the lower shoulder tread block; 3 is the transverse tread groove; 4 is the longitudinal tread groove; 5 is the center tread reinforcing rib; 6 is the first anti-stone-clamping protrusion; 7 is the second anti-stone-clamping protrusion; 8 is the heat dissipation groove; 9 is the air guide groove; and 10 is the air pressurization groove. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0020] Example 1

[0021] like Figure 1 As shown, this embodiment provides a high-saturation and high-TKPH ​​engineering machinery tire tread pattern, including a crown tread block 1 and a shoulder tread block 2, wherein the shoulder tread block 2 further includes an upper shoulder tread block 201 and a lower shoulder tread block 202. Along the tire circumference, a crown transverse tread groove is provided between adjacent crown tread blocks 1, and a shoulder transverse tread groove is provided between adjacent shoulder tread blocks 2. Along the tire width direction, adjacent crown transverse tread grooves and shoulder transverse tread grooves are connected to form a transverse tread groove 3, making the transverse tread groove 3 obliquely "S"-shaped. Along the tire width direction, a longitudinal tread groove 4 is provided between adjacent crown tread blocks 1 and shoulder tread blocks 2; along the tire circumference direction, adjacent longitudinal tread grooves 4 are connected to transverse tread grooves 3, and the shoulder transverse tread groove changes from narrow to wide from the crown center to the shoulder.

[0022] In this embodiment, the tread saturation of the engineering machinery tire is 70-75%. The calculation method for tread saturation is as follows: considering the volume of the center tread block 1, the shoulder tread block, the lateral tread groove 3, and the longitudinal tread groove 4 as the total volume, the tread saturation refers to the ratio of the sum of the volumes of the center tread block 1 and the shoulder tread block to the total volume. This embodiment improves tread saturation, increases the contact patch, optimizes the contact imprint, ensures the area of ​​the tread blocks, improves the tire's cut and wear resistance, and also ensures traction and cornering handling performance.

[0023] In this embodiment, the longitudinal tread grooves 4 and the transverse tread grooves 3 are interconnected, and the depth of the longitudinal tread grooves 4 is 60-70% of the deepest depth of the transverse tread grooves 3. This design allows the tread grooves to interweave and combine shallow and deep grooves to form a mesh-like tread pattern. During tire operation, this mesh-like flow channel can be formed to accelerate the removal of heat generated by the tire, effectively improving the tire's heat dissipation performance. At the same time, the transverse tread grooves 3 gradually widen from the center of the crown to the shoulder, forming a funnel shape, which can effectively expel mud embedded in the tread grooves during tire operation, improving the tire's traction and self-cleaning performance.

[0024] The tread pattern structure in this embodiment not only ensures sufficient saturation of the tire tread pattern, improving the tire's cut resistance and wear life, but also increases the tire's TKPH, ensuring that the tire is not damaged by thermal delamination due to heat generation, and can still maintain excellent traction performance in muddy road conditions.

[0025] Example 2

[0026] Based on Example 1, within the transverse tread groove 3, a crown reinforcement rib 5, communicating with the longitudinal tread groove 4, is provided between two adjacent crown tread blocks 1 along the tire circumference. The height of the crown reinforcement rib 5 gradually changes from "low → high → low" from the crown center to the tire shoulder, with the highest point being 35-40% of the deepest part of the transverse tread groove 3 and the lowest point being 10-15% of the deepest part of the transverse tread groove 3. The width of the crown reinforcement rib 5 is 40-60% of the width of the driving surface.

[0027] In this embodiment, the large-area crown reinforcement rib 5 connects the crown tread block 1 and the shoulder tread block 2 of the entire tire into a mesh-like whole, which can improve the stability of the tire and improve the puncture and cut resistance of the bottom of the lateral tread groove 3. At the same time, the height gradient form can ensure that the crown reinforcement rib 5 is thicker in the areas requiring higher rigidity and shallower in the areas with higher heat generation to enhance heat dissipation. It can also prevent the crown part of the tire from being worn out prematurely and exposing the belt steel wires under harsh working conditions such as rainy season or water accumulation.

[0028] Example 3

[0029] Based on Example 1, an anti-stone-clamping protrusion 6 is provided on one side of the shoulder tread block 2. The anti-stone-clamping protrusion 6 is located in the shoulder transverse tread groove on one side of the long side of each shoulder tread block 2, with a height of 40-60% of the height of the shoulder tread block 2 and a width of 2-5% of the widest part of the transverse tread groove 3. The anti-stone-clamping protrusion 6 can effectively improve the puncture resistance of the bottom of the shoulder transverse tread groove, preventing sharp stones from puncturing the bottom of the shoulder transverse tread groove and causing tire damage.

[0030] Example 4

[0031] Based on Example 1, anti-stone-clamping protrusions 7 are respectively provided on both sides of the long side of the crown tread block 1, directly opposite the longitudinal tread groove 4; the height of the anti-stone-clamping protrusions 7 is the same as that of the crown tread block 1, and the width is 20-30% of the width of the transverse tread groove 3 at the crown position. The anti-stone-clamping protrusions 7 can effectively improve the puncture resistance of the bottom of the crown tread groove, preventing sharp stones from puncturing the bottom of the tread groove and causing damage to the tire.

[0032] Example 5

[0033] Based on Example 1, transverse air guide grooves 9 are provided at the center of the crown tread block 1 and the shoulder tread block 2. The depth of the air guide grooves 9 is 5-10% of the deepest part of the transverse tread groove 3, and the width of the air guide grooves 9 on the crown tread block 1 and the shoulder tread block 2 is 2-5% of the width of the crown tread block 1 and the shoulder tread block 2, respectively. The air guide grooves 9 can better dissipate the heat generated during tire driving, effectively improve the heat dissipation performance of the central part of the tire tread block, improve the tire's durability and TKPH, and extend the tire's service life.

[0034] Example 6

[0035] Based on Example 5, two air pressurization grooves 10 are symmetrically arranged on the center of the tread block 1. The air pressurization grooves 10 are connected to the air guide grooves 9. The depth of the air pressurization grooves 10 is gradually changing, with the deepest point being the same as the depth of the air guide groove 9 at the connection point, gradually decreasing outwards to be flush with the center of the tread block 1. The width is 10-20% of the widest width of the tread block. During tire operation, the air is compressed and accelerated within the air pressurization grooves 10, flowing rapidly along the air guide grooves 9, carrying away heat from the tire crown surface, improving the early heat dissipation capacity of the tire, enhancing tire durability and TKPH, and extending tire life.

[0036] Example 7

[0037] Based on Example 1, the junction of the longitudinal groove 4 and the transverse groove 3 is an outwardly expanding opening structure, that is, the longitudinal groove 4 has an outwardly expanding rounded corner at the junction with the transverse groove 3. This can increase the smoothness of the flow of mud embedded in the groove between the longitudinal groove 4 and the transverse groove 3, making it easier for the mud to flow between the grooves and easier for the mud to be discharged.

[0038] Example 8

[0039] Based on Example 1, a heat dissipation groove 8 is provided at the outer end of the lateral tread groove on the shoulder, which is connected to the lateral tread groove 3. This allows for better dissipation of heat generated during tire operation, effectively improving the heat dissipation performance of the thickest part of the tire shoulder structure, enhancing tire durability, and extending tire life. Simultaneously, the connection between the heat dissipation groove 8 and the lateral tread groove 3 avoids the problem of mud embedding in the lateral tread groove 3 and hindering heat dissipation, facilitating mud removal and heat dissipation.

Claims

1. A high-saturation and high-TKPH ​​engineering machinery tire tread pattern, characterized in that, It includes a crown tread block (1) and a shoulder tread block (2); along the tire circumference, a crown transverse tread groove is provided between adjacent crown tread blocks (1), and a shoulder transverse tread groove is provided between adjacent shoulder tread blocks (2). Along the tire width direction, adjacent crown transverse tread grooves and shoulder transverse tread grooves are connected to form a transverse tread groove (3); along the tire width direction, a longitudinal tread groove (4) is provided between adjacent crown tread blocks (1) and shoulder tread blocks (2); along the tire circumference direction, adjacent longitudinal tread grooves (4) are connected to transverse tread grooves (3), and the depth of the longitudinal tread groove (4) is 60-70% of the deepest depth of the transverse tread groove (3); the shoulder transverse tread groove changes from narrow to wide from the crown to the shoulder; the saturation of the tread pattern of the engineering machinery tire is 70-75%.

2. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, Within the transverse tread groove (3), a crown reinforcing rib (5) that communicates with the longitudinal tread groove (4) is provided between two adjacent crown tread blocks (1) along the tire circumference.

3. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 2, characterized in that, The height of the crown reinforcement rib (5) gradually changes from low to high and then back to low from the crown center to the tire shoulder. The height of the highest point is 35-40% of the deepest point of the transverse tread groove (3), and the height of the lowest point is 10-15% of the deepest point of the transverse tread groove (3). The width of the crown reinforcement rib (5) is 40-60% of the width of the driving surface.

4. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, The shoulder pattern block (2) is provided with an anti-pinch stone protrusion (6) on one side; the anti-pinch stone protrusion (6) is provided on one side of the long side of each shoulder pattern block (2), the height is 40-60% of the height of the shoulder pattern block (2), and the width is 2-5% of the width of the widest part of the transverse pattern groove (3).

5. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, On both sides of the long side of the crown pattern block (1) and directly opposite the longitudinal pattern groove (4), there are anti-clamping stone protrusions (7); the height of the anti-clamping stone protrusions (7) is the same as that of the crown pattern block (1), and the width is 20-30% of the width of the transverse pattern groove (3) at the crown position.

6. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, A transverse air guide groove (9) is provided at the center of the crown pattern block (1) and the shoulder pattern block (2); the depth of the air guide groove (9) is 5-10% of the deepest part of the transverse pattern groove (3), and the width of the air guide groove (9) on the crown pattern block (1) and the shoulder pattern block (2) is 2-5% of the width of the crown pattern block (1) and the shoulder pattern block (2), respectively.

7. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 6, characterized in that, An air pressurization groove (10) is provided on the crown pattern block (1); two air pressurization grooves (10) are provided symmetrically on the crown pattern block (1).

8. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 7, characterized in that, The air pressurization groove (10) is connected to the air guide groove (9). The depth of the air pressurization groove (10) is gradually changing. The depth at the connection with the air guide groove (9) is the deepest and the same as the depth of the air guide groove (9). It gradually changes outward to be flush with the crown pattern block (1). The width is 10-20% of the width of the widest part of the pattern block.

9. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, The junction of the longitudinal patterned groove (4) and the transverse patterned groove (3) is an outwardly expanding opening structure.

10. The high saturation and high TKPH engineering machinery tire tread pattern as described in claim 1, characterized in that, The outer end of the transverse patterned groove on the shoulder is provided with a heat dissipation groove (8).

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