Four-longitudinal-groove anti-cutting type mining engineering tire pattern

Abstract

The utility model discloses a four-longitudinal-groove anti-cutting type mining engineering tire pattern which comprises a crown middle pattern block and shoulder pattern blocks, and the shoulder pattern blocks comprise an upper shoulder pattern block and a lower shoulder pattern block; in the circumferential direction of the tire, a crown middle transverse pattern groove is formed between every two adjacent crown middle pattern blocks, a shoulder transverse pattern groove is formed between every two adjacent shoulder pattern blocks, and in the width direction of the tire, the crown middle transverse pattern grooves and the shoulder transverse pattern grooves are communicated to form transverse pattern grooves; in the width direction of the tire, oblique main longitudinal pattern grooves are formed between the adjacent crown middle pattern blocks and shoulder pattern blocks, and are communicated with the crown middle transverse pattern grooves and the shoulder transverse pattern grooves; auxiliary longitudinal pattern grooves are formed in the upper shoulder pattern blocks in the width direction of the tire; and reinforcing ribs are arranged in the crown middle transverse pattern grooves and the main longitudinal pattern grooves. Through the matching of multiple longitudinal grooves and the design of the reinforcing ribs, the anti-cutting performance of the tire is improved, the abrasion service life of the tire is prolonged, and the tire is ensured not to be damaged due to thermal delamination caused by heat generation.

Description

Technical Field

[0001] The utility model relates to the technical field of tire patterns, in particular to a four-longitudinal-groove cutting-resistant mining engineering tire pattern. Background Art

[0002] When driving on harsh road conditions in open-pit mines, tires need to have excellent cut resistance; when driving on long distances and at high speeds, they need to meet the requirement of low heat generation. Usually, a design with additional heat dissipation grooves is adopted, which makes the two performance requirements contradictory, and it is often difficult for one product to take both performances into account. Because if the tire heat generation problem is taken into consideration, the pattern saturation is usually low (between 55-60%), and the design is generally open-shoulder, and the pattern blocks are relatively isolated. Under harsh road conditions, the deformation and tear resistance are poor, and the tread puncture resistance is weak. This results in the tire not being resistant to cuts and punctures in the early stage under harsh road conditions, resulting in damage and a short service life; in long distance and high speed scenarios, the tire will be damaged by early heat generation and delamination; mud is easily embedded in the tire heat dissipation grooves, which hinders the heat dissipation of the tire and can lead to problems such as reduced tire traction performance and tire slippage. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide a four-longitudinal groove cut-resistant mining engineering tire pattern. Through the combination of multiple longitudinal grooves and the design of reinforcing ribs, the tire's cut-resistant performance and wear life are improved, and the tire is ensured not to be damaged by thermal delamination due to heat generation.

[0004] The technical solution of the utility model is:

[0005] The tread pattern of the four-longitudinal-groove, cut-resistant mining engineering tire includes a crown center tread block and a shoulder tread block, and the shoulder tread block includes an upper shoulder tread block and a lower shoulder tread block; along the circumferential direction of the tire, crown center transverse grooves are arranged between adjacent crown center tread blocks, and shoulder transverse grooves are arranged between adjacent shoulder tread blocks; along the width direction of the tire, the crown center transverse grooves and the shoulder transverse grooves are connected to form transverse grooves; along the width direction of the tire, oblique main longitudinal grooves are arranged between adjacent crown center tread blocks and shoulder tread blocks, connecting the crown center transverse grooves and the shoulder transverse grooves; along the width direction of the tire, an auxiliary longitudinal groove is arranged on the upper shoulder tread block; reinforcing ribs are arranged in the crown center transverse grooves and the main longitudinal grooves.

[0006] Preferably, the auxiliary longitudinal grooves divide the upper shoulder pattern block into two sections, wherein the section close to the crown center is recorded as upper shoulder pattern block one, and the other section is recorded as upper shoulder pattern block two. The depth of the main longitudinal grooves and the depth of the shoulder transverse grooves between two adjacent upper shoulder pattern blocks one are both 45-50% of the depth of the shoulder transverse grooves between two adjacent upper shoulder pattern blocks two.

[0007] Preferably, the shoulder transverse grooves between two adjacent upper shoulder pattern blocks 1 and the shoulder transverse grooves between two adjacent upper shoulder pattern blocks 2 change from shallow to deep in the direction from the crown to the shoulder.

[0008] Preferably, the shoulder transverse grooves between two adjacent upper shoulder pattern blocks 2 change from narrow to wide in the direction from the crown to the shoulder.

[0009] Preferably, the depth of the auxiliary longitudinal groove is 30-35% of the depth of the shoulder transverse groove between two adjacent upper shoulder pattern blocks 2.

[0010] Preferably, heat dissipation grooves are provided between two adjacent lower shoulder pattern blocks and at the center of the lower shoulder pattern blocks along the circumferential direction of the tire.

[0011] Preferably, the pattern saturation of the four-longitudinal-groove anti-cutting mining engineering tire pattern is 68-72%.

[0012] Preferably, both ends of the auxiliary longitudinal groove are in irregular trumpet shapes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The pattern structure of the present invention improves the tire's cut resistance and wear life through the combination of multiple longitudinal grooves and reinforcing rib design, while also ensuring that the tire is not damaged by thermal delamination due to heat generation.

[0015] 2. In the present invention, the heat dissipation groove between two adjacent lower shoulder pattern blocks is connected to the shoulder transverse pattern groove between two adjacent upper shoulder pattern blocks, which also avoids the problem of the heat dissipation groove being embedded in mud and hindering heat dissipation, making it easy to discharge mud and dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic structural diagram of the tread pattern of a four-longitudinal-groove anti-cutting mining engineering tire.

[0017] In the figure, 1. crown center pattern block; 2. shoulder pattern block; 201. upper shoulder pattern block; 2011. upper shoulder pattern block one; 2012. upper shoulder pattern block two; 202. lower shoulder pattern block; 3. crown center transverse pattern groove; 4. main longitudinal pattern groove; 5. reinforcing rib; 6. auxiliary longitudinal pattern groove; 7. heat dissipation groove. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0019] Example 1

[0020] like Figure 1 As shown, this embodiment provides a four-longitudinal groove, cut-resistant mining engineering tire pattern, comprising a crown center pattern block 1 and shoulder pattern blocks 2, wherein the shoulder pattern blocks 2 further comprise an upper shoulder pattern block 201 and a lower shoulder pattern block 202. Along the tire circumference, crown center transverse grooves 3 are provided between adjacent crown center pattern blocks 1, and shoulder transverse grooves are provided between adjacent shoulder pattern blocks 2. Along the tire width, the crown center transverse grooves 3 and the shoulder transverse grooves are connected to form transverse grooves. Along the tire width, oblique main longitudinal grooves 4 are provided between adjacent crown center pattern blocks 1 and shoulder pattern blocks 2. The crown center transverse grooves 3 and the shoulder transverse grooves are connected through the main longitudinal grooves 4, resulting in an overall "X"-shaped tire groove pattern. Along the tire width, a secondary longitudinal groove 6 is provided at the center of the upper shoulder block 201. The ends of the secondary longitudinal groove 6 are irregularly shaped, forming a heat dissipation trough structure. Together with the primary longitudinal grooves 4, this heat dissipation trough structure forms a four-longitudinal groove structure. Reinforcing ribs 5 are provided within the crown transverse grooves 3 and the primary longitudinal grooves 4.

[0021] The mining engineering tire of this embodiment has a tread saturation of 68-72%. The tread saturation is calculated as follows: The volume of the crown block 1, shoulder blocks 2, transverse grooves, and main longitudinal grooves 4 is considered the total volume. The tread saturation is then the ratio of the volume of the crown block 1 to the volume of the shoulder blocks 2 to the total volume. This embodiment improves the tread saturation, increases the contact patch area, optimizes the contact patch footprint, ensures the area of ​​the tread blocks, enhances the tire's cut and wear resistance, and ensures traction and cornering performance.

[0022] like Figure 1As shown, the main longitudinal grooves 4 and transverse grooves of the tire of this embodiment interpenetrate each other, and the auxiliary longitudinal grooves 6 divide the upper shoulder block 201 into two sections, of which the section near the crown center is denoted as upper shoulder block 1 2011, and the other section is denoted as upper shoulder block 2 2012. In this embodiment, the depth of the main longitudinal grooves 4 and the depth of the shoulder transverse grooves between two adjacent upper shoulder blocks 1 2011 are both 45-50% of the depth of the shoulder transverse grooves between two adjacent upper shoulder blocks 2 2012. Furthermore, the shoulder transverse grooves between two adjacent upper shoulder blocks 1 2011 and between two adjacent upper shoulder blocks 2 2012 form a trapezoidal transition structure, changing from shallow to deep in the direction from the crown center to the shoulder. Because the crown wears faster, the shoulder transverse grooves between adjacent upper shoulder blocks 2011 are shallow, making the crown more wear-resistant. To ensure heat dissipation in the shoulder area, the shoulder transverse grooves between adjacent upper shoulder blocks 2012 are deep, improving heat dissipation in the tire's shoulders. Therefore, a height difference is created between the shoulder transverse grooves between adjacent upper shoulder blocks 1 2011 and between adjacent upper shoulder blocks 2 2012, creating a trapezoidal, rounded, and sloped transition. This avoids the sharp corners and breakage that can occur with a straight transition from top to bottom. This design also creates a crisscross pattern of grooves, combining shallow and deep grooves to form a network of grooves. This creates a network of flow channels during tire operation, accelerating the removal of heat generated by the tire and effectively improving the tire's heat dissipation performance.

[0023] At the same time, if Figure 1 As shown, the shoulder transverse groove between two adjacent upper shoulder pattern blocks 2012 changes from narrow to wide in the direction from the crown to the shoulder, and is trumpet-shaped, which can effectively discharge mud embedded in the groove during the tire driving process, thereby improving the traction performance and self-cleaning performance of the tire.

[0024] The tread structure of this embodiment not only improves the tire's cut resistance and wear life, but also prevents thermal delamination damage caused by heat generation. The addition of a reinforcing rib 5 in the crown prevents breakage of the crown tread blocks while maximizing heat dissipation. Furthermore, when the tread wear reaches the rib 5, the crown block 1 integrates with the rib 5 to form a single, integrated block, maximizing crown stiffness and improving wear resistance and cut resistance.

[0025] Example 2

[0026] Based on Example 1, the depth of the secondary longitudinal grooves 6 is 30-35% of the depth of the shoulder transverse grooves between two adjacent upper shoulder blocks 2012. This maximizes the integrity of the shoulder blocks 2 while providing heat dissipation. The irregular design of the secondary longitudinal grooves 6 disperses stress on the shoulders, making them less susceptible to breakage. The flared ends of the secondary longitudinal grooves 6 increase airflow velocity by varying the aperture, creating flow channels during tire operation, accelerating the removal of heat generated by the tire and improving heat dissipation.

[0027] The auxiliary longitudinal grooves 6 are combined with the main longitudinal grooves 4 to form a four-longitudinal groove structure, which can improve the stability of the tire, maximize the heat dissipation performance of the tire, and improve the puncture and cutting resistance of the groove bottom.

[0028] Example 3

[0029] On the basis of Example 1, Figure 1 As shown, along the circumference of the tire, heat dissipation grooves 7 are provided between two adjacent lower shoulder blocks 202 and at the center of each lower shoulder block 202. The heat dissipation grooves 7 between two adjacent lower shoulder blocks 202 intersect with the shoulder transverse grooves between two adjacent upper shoulder blocks 2012, effectively dissipating heat generated during tire formation. This effectively improves heat dissipation at the thickest location of the tire shoulder structure, enhancing tire durability and extending tire service life. Furthermore, the heat dissipation grooves 7 between two adjacent lower shoulder blocks 202 intersect with the shoulder transverse grooves between two adjacent upper shoulder blocks 2012, preventing mud from becoming embedded in the heat dissipation grooves 7 and hindering heat dissipation. This facilitates mud drainage and heat dissipation.

Claims

1. Four longitudinal groove anti-cutting mining engineering tire pattern, characterized by: The tire comprises a crown pattern block (1) and a shoulder pattern block (2), wherein the shoulder pattern block (2) comprises an upper shoulder pattern block (201) and a lower shoulder pattern block (202); Along the circumferential direction of the tire, crown transverse grooves (3) are provided between adjacent crown pattern blocks (1), shoulder transverse grooves are provided between adjacent shoulder pattern blocks (2), and along the width direction of the tire, the crown transverse grooves (3) are connected with the shoulder transverse grooves to form transverse grooves; along the width direction of the tire, oblique main longitudinal grooves (4) are provided between adjacent crown pattern blocks (1) and shoulder pattern blocks (2), connecting the crown transverse grooves (3) and the shoulder transverse grooves; along the width direction of the tire, auxiliary longitudinal grooves (6) are provided on the upper shoulder pattern blocks (201); and reinforcing ribs (5) are provided in the crown transverse grooves (3) and the main longitudinal grooves (4).

2. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 1, characterized in that: The auxiliary longitudinal groove (6) divides the upper shoulder pattern block (201) into two sections, wherein the section close to the crown center is recorded as the upper shoulder pattern block one (2011), and the other section is recorded as the upper shoulder pattern block two (2012). The depth of the main longitudinal groove (4) and the depth of the shoulder transverse groove between two adjacent upper shoulder pattern blocks one (2011) are both 45-50% of the depth of the shoulder transverse groove between two adjacent upper shoulder pattern blocks two (2012).

3. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 2, characterized in that: From the shoulder transverse groove between two adjacent upper shoulder pattern blocks 1 (2011) to the shoulder transverse groove between two adjacent upper shoulder pattern blocks 2 (2012), the groove changes from shallow to deep in the direction from the crown to the shoulder.

4. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 2, characterized in that: The shoulder transverse groove between two adjacent upper shoulder pattern blocks 2 (2012) changes from narrow to wide in the direction from the crown to the shoulder.

5. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 2, characterized in that: The depth of the auxiliary longitudinal groove (6) is 30-35% of the depth of the shoulder transverse groove between two adjacent upper shoulder pattern blocks (2012).

6. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 1, characterized in that: Along the circumferential direction of the tire, heat dissipation grooves (7) are provided between two adjacent lower shoulder pattern blocks (202) and at the center of the lower shoulder pattern block (202).

7. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 1, characterized in that: The pattern saturation of the four-longitudinal-groove cutting-resistant mining engineering tire is 68-72%.

8. The four-longitudinal-groove anti-cutting mining tire pattern according to claim 1, characterized in that: Both ends of the auxiliary longitudinal groove (6) are in an irregular trumpet shape.

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