Tire tread pattern suitable for mine engineering machinery and tire

Abstract

According to the tire tread pattern suitable for the mine engineering machinery and the tire provided by the utility model, the longitudinal reinforcing rib is arranged in the center to connect the left pattern block and the right pattern block, so that the pattern blocks can be prevented from falling off, the rigidity of the tread pattern is improved, the tire is uniformly worn, the wear resistance of the tire is enhanced, and the service life of the tire is prolonged. And the ratio of the surface area of the pattern block in contact with the ground to the surface area of the pattern groove during driving is adjusted to be 70-80%, so that the grounding pressure of the pattern block is dispersed, stress release is facilitated, and crack extension of the pattern block is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tire tread patterns, and in particular to a tire tread pattern and tire suitable for mining engineering machinery. Background Technology

[0002] Tire tread pattern is a crucial factor in improving vehicle performance and ensuring driving safety, and it is a very critical technology in tire design. Given the harsh conditions of mining roads and the ruggedness of mountain roads, choosing the correct tire tread pattern is of paramount importance.

[0003] When traditional mining machinery tires are in motion, the tread block area in contact with the ground is too large, which reduces the area and width of the non-tread portion, namely the tread grooves. This causes mud or stones to be squeezed into the tread grooves and difficult to expel when the tire rotates, resulting in a decrease in the utilization rate of traction and braking force transmitted to the ground and causing tire slippage. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a tire tread pattern and tire suitable for mining machinery. A central longitudinal reinforcing rib connects the left and right tread blocks, preventing tread block breakage, improving tread rigidity, ensuring even tire wear, enhancing wear resistance, and thus increasing tire lifespan. Furthermore, by adjusting the ratio of the surface area of ​​the tread block in contact with the ground to the surface area of ​​the tread groove to 70%-80% during driving, the ground contact pressure of the tread blocks is dispersed, facilitating stress release and reducing the propagation of tread block cracks.

[0005] The technical solution of this utility model is as follows: a tire tread pattern suitable for mining engineering machinery, wherein the tread pattern is provided with longitudinal reinforcing ribs, left tread blocks and right tread blocks along the circumference, and a left transverse tread groove is provided between adjacent left tread blocks, and a right transverse tread groove is provided between adjacent right tread blocks; the longitudinal reinforcing ribs are located at the center of the tread pattern and connect the left tread blocks and the right tread blocks; the tread pattern is symmetrical in the center; the ratio of the sum of the surface areas of the left transverse tread grooves and the right transverse tread grooves to the sum of the surface areas of the left tread blocks and the right tread blocks is between 70% and 80%.

[0006] The trend of the left or right tread block is from the center to the outermost edge of the tire crown. The width in the tire circumference direction gradually widens, then narrows, and then widens again. The maximum width is located at the beginning of the first narrowing, which is H2; the width at the second widening point is H3. The ratio of the length H1 of the center edge I, the maximum width H2 of the left tread block in the tire circumference direction, the width H3 at the second widening point in the tire circumference direction, and the width H4 of the left tread block at the outermost edge of the tire crown is 1:1.5-2.0:1.1-1.6:1.2-1.7.

[0007] The left-side tread block includes a central edge I, edge II, and edge III. The two ends of central edge I are connected to the ends of edge II and edge III, respectively. Edge II includes straight segment I, arc segment I, arc segment II, straight segment II, and straight segment VI connected in sequence. Edge III includes straight segment III, arc segment III, arc segment IV, straight segment IV, and straight segment V connected in sequence. The two ends of central edge I are connected to the ends of straight segment I and straight segment III, respectively. Straight segments VI and V are located at the tire shoulder. Central edge I is an inclined straight edge. The angle between central edge I and the tire's lateral side is b. The angle between straight segment I and the tire's lateral side is a. The values ​​of angles a and b are in the range of 40°-50°. The angle between straight segment III and the tire's lateral side is c. The value of angle c is in the range of 10°-15°.

[0008] Arc segment I is tangent to straight line segment I and arc segment II at their connection points. Relative to the straight line formed by connecting the two ends of arc segment I, arc segment I causes the left pattern block to convex outward; relative to the straight line formed by connecting the two ends of arc segment II, arc segment II causes the left pattern block to concave inward; relative to the straight line formed by connecting the two ends of arc segment III, arc segment III causes the left pattern block to concave inward; relative to the straight line formed by connecting the two ends of arc segment IV, arc segment IV causes the left pattern block to convex outward.

[0009] Between arc segment I and straight segment III, the left tread block is widest in the tire circumference; between arc segment II and arc segment IV, the width begins to widen for the second time in the tire circumference.

[0010] Straight segments VI and V are located at the tire shoulder, and the distance between them gradually increases from the outermost edge of the tire crown to the tire shoulder and sidewall.

[0011] The maximum width L3 of the longitudinal stiffener is 0.2-0.3 times the maximum width L2 of the left or right patterned block, and the thickness of the longitudinal stiffener is 1 / 5-1 / 4 of the thickness of the left or right patterned block.

[0012] A tire suitable for mining engineering machinery, wherein the tire tread pattern is the tire tread pattern described above.

[0013] The beneficial effects of this invention are as follows: The central longitudinal reinforcing rib connecting the left and right tread blocks prevents tread block breakage, improves the rigidity of the tread pattern, ensures even tire wear, enhances tire wear resistance, and thus increases tire lifespan. Furthermore, by adjusting the ratio of the surface area of ​​the tread block in contact with the ground to the surface area of ​​the tread groove to between 70% and 80% during driving, the ground pressure of the tread blocks is dispersed, facilitating stress release and reducing the propagation of tread block cracks. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of this utility model.

[0015] 1 is the tread pattern; 2 is the left tread block; 3 is the right tread block; 4 is the left transverse tread groove; 5 is the right transverse tread groove; 6 is the center edge I; 7 is the edge II; 70 is the straight segment I; 71 is the arc segment I; 72 is the arc segment II; 73 is the straight segment II; 74 is the straight segment VI; 8 is the edge III; 80 is the straight segment III; 81 is the arc segment III; 82 is the arc segment IV; 83 is the straight segment IV; 84 is the straight segment V; and 10 is the longitudinal reinforcing rib. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only for illustration and explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art can make some non-essential improvements and adjustments based on the content of this utility model below. In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application should have the ordinary meaning understood by those skilled in the art.

[0017] like Figure 1 As shown, a tire tread pattern suitable for mining machinery includes a tread pattern 1 with longitudinal reinforcing ribs 10, a left tread block 2, and a right tread block 3 along its circumference. A left transverse tread groove 4 is provided between adjacent left tread blocks 2, and a right transverse tread groove 5 is provided between adjacent right tread blocks. The longitudinal reinforcing ribs 10 are located at the center of the tread pattern and connect the left tread blocks 2 and the right tread blocks 3. The tread pattern is symmetrical, with the left tread blocks 2 and 3 arranged symmetrically, meaning the left tread block 2 rotates 180 degrees around the center to completely overlap with the right tread block 3. Similarly, the left transverse tread grooves 4 and 5 are symmetrically arranged. The ratio of the sum of the surface areas of the left and right transverse tread grooves to the sum of the surface areas of the left and right tread blocks is between 70% and 80%.

[0018] A central longitudinal reinforcing rib connects the left and right tread blocks, preventing block breakage, increasing tread rigidity, ensuring even wear, and enhancing tire wear resistance, thus extending tire lifespan. Furthermore, by adjusting the ratio of the surface area of ​​the tread block in contact with the ground to the surface area of ​​the tread groove to 70%-80% during driving, the ground contact pressure is distributed, facilitating stress release and reducing crack propagation.

[0019] The patterned block 2 on the right side includes a central edge I6, an edge II7, and an edge III8. The two ends of the central edge I6 are connected to the ends of edge II7 and edge III8, respectively. Edge II7 includes, in sequence, straight line segment I70, arc segment I71, arc segment II72, straight line segment II73, and straight line segment VI74. Edge III8 includes, in sequence, straight line segment III80, arc segment III81, arc segment IV82, straight line segment IV83, and straight line segment V84. The two ends of the central edge I6... The ends are connected to the ends of straight segments I70 and III80 respectively. Straight segments VI74 and V84 are located at the tire shoulder. The center edge I6 is an inclined straight edge. The angle between the center edge I and the tire lateral side is b. The angle between straight segment I and the tire lateral side is a. The values ​​of angles a and b are 40°-50° respectively. The angle between straight segment III and the tire lateral side is c. The value of angle c is 10°-15°.

[0020] Arc segment I71 is tangent to straight segment I70 and arc segment II72 at their connection points. Relative to the straight line formed by connecting the two ends of arc segment I71, arc segment I71 causes the left patterned block 2 to bulge outward; relative to the straight line formed by connecting the two ends of arc segment II72, arc segment II72 causes the left patterned block 2 to concave inward; relative to the straight line formed by connecting the two ends of arc segment III81, arc segment III81 causes the left patterned block 2 to concave inward; relative to the straight line formed by connecting the two ends of arc segment IV82, arc segment IV82 causes the left patterned block 2 to bulge outward.

[0021] Furthermore, the trend of the left or right tread block is such that its width gradually widens, narrows, and then widens again in the tire circumference direction from the center towards the outermost edge of the tire crown. The maximum width is located at the point where the width begins to narrow for the first time, with a width of H2; the width at the point where the width begins to widen for the second time is H3. The ratio of the length H1 of the center edge I, the maximum width H2 of the left tread block in the tire circumference direction, the width H3 at the point where the width begins to widen for the second time in the tire circumference direction, and the width H4 of the left tread block at the outermost edge of the tire crown is: 1:1.5-2.0:1.1-1.6:1.2- 1.7 The tread pattern, from the center towards the outermost edges of the tread (dotted line CC in the diagram), gradually widens, then narrows, and then widens again in the tire's circumferential direction. The maximum width is H2, located at the point where the width begins to narrow; the width at the point where the width begins to widen again is H3. Furthermore, the ratio of the length H1 of the center edge (I), the maximum width H2 of the left tread block in the tire's circumferential direction, the width H3 at the point where the width begins to widen again, and the width H4 of the left tread block at the outermost edge of the tread is 1:1.5-2.0:1.1-1.6:1.2-1.7. This ensures driving capability while facilitating stone, water, and mud removal, enhancing the tire's self-cleaning properties. It also adjusts the distribution of longitudinal friction, preventing uneven wear and tread block breakage, improving tire wear resistance, and thus increasing tire safety and lifespan.

[0022] The outermost edges of the two tire crowns are respectively Figure 1 The dotted line CC on the right and the solid line on the left are in the middle. The tread pattern on the left shoulder of the tire is omitted.

[0023] Between arc segment I 71 and straight segment III 80, the left tread block is widest in the tire circumferential direction; between arc segment II 72 and arc segment IV 82, the width begins to increase for the second time in the tire circumferential direction.

[0024] Straight segments VI74 and V84 are located at the tire shoulder, and the distance between them gradually increases from the outermost edge of the tire crown to the tire shoulder and sidewall, which is conducive to the removal of stones, water, and mud.

[0025] Because the left and right tread blocks are symmetrical, their tread patterns follow the same direction from the outermost edge of the tire crown on both sides. This ensures driving capability while facilitating the removal of stones, water, and mud, thus enhancing the tire's self-cleaning properties.

[0026] The maximum width L3 of the longitudinal reinforcing rib is 0.2-0.3 times the maximum width L2 of the left or right tread block, and the width direction is along the lateral direction of the tire. The thickness of the longitudinal reinforcing rib is 1 / 5-1 / 4 of the thickness of the left or right tread block. The longitudinal reinforcing rib at the center of the tire crown should not be too thick, as excessive thickness will generate excessive heat and hinder heat dissipation.

[0027] A tire suitable for mining engineering machinery, wherein the tire tread pattern is the tire tread pattern described above.

[0028] The above descriptions are merely preferred embodiments of this utility model, not all embodiments. The scope of protection of this utility model is not limited thereto. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. It should be noted that for those skilled in the art and any person skilled in the art, any equivalent substitutions or changes made based on the technical solutions and utility model concept of this utility model, as well as any changes and improvements made without departing from the overall concept and spirit of this utility model, should also be considered within the scope of protection of this utility model.

Claims

1. A tire tread pattern suitable for mining machinery, characterized in that: The tread pattern (1) is provided with longitudinal reinforcing ribs (10), left tread blocks (2) and right tread blocks (3) along the circumference. There are left transverse tread grooves (4) between adjacent left tread blocks (2) and right transverse tread grooves (5) between adjacent right tread blocks. The longitudinal reinforcing ribs are located at the center of the tread pattern and connect the left tread blocks (2) and the right tread blocks (3). The tread pattern is symmetrical. The ratio of the sum of the surface areas of the left transverse tread grooves and the right transverse tread grooves to the sum of the surface areas of the left tread blocks and the right tread blocks is between 70% and 80%.

2. The tire tread pattern for mining machinery according to claim 1, characterized in that: The trend of the left tread block (2) or the right tread block (3) is from the center to the outermost part of the tire crown on both sides. The width in the tire circumference direction first gradually widens, then gradually narrows, and then gradually widens again. The maximum width is located at the beginning of the first narrowing, and the width is H2; the width at the second widening is H3; and the ratio of the length of the center edge I (H1), the maximum width of the left tread block in the tire circumference direction (H2), the width at the second widening in the tire circumference direction (H3), and the width of the left tread block at the outermost part of the tire crown (H4) is: 1:1.5-2.0:1.1-1.6:1.2-1.

7.

3. The tire tread pattern for mining machinery according to claim 2, characterized in that: The left-side patterned block (2) includes a central edge I (6), an edge II (7), and an edge III (8). The two ends of the central edge I (6) are connected to the ends of the edge II (7) and the edge III (8), respectively. The edge II (7) includes a straight line segment I (70), an arc segment I (71), an arc segment II (72), a straight line segment II (73), and a straight line segment VI (74) connected in sequence. The edge III (8) includes a straight line segment III (80), an arc segment III (81), an arc segment IV (82), a straight line segment IV (83), and a straight line segment IV (84) connected in sequence. V (84), the two ends of the center side part I (6) are connected to the ends of the straight segments I (70) and III (80) respectively. The straight segments VI (74) and V (84) are located at the tire shoulder. The center side part I (6) is an inclined straight side. The angle between the center side part I and the tire lateral is b. The angle between the straight segment I and the tire lateral is a. The values ​​of angle a and angle b are 40°-50° respectively. The angle between the straight segment III and the tire lateral is c. The value of angle c is 10°-15°.

4. The tire tread pattern for mining machinery according to claim 3, characterized in that: Arc segment I (71) is tangent to straight segment I (70) and arc segment II (72) at the connection point. Relative to the straight line formed by connecting the two ends of arc segment I (71), arc segment I (71) causes the left pattern block (2) to bulge outward; relative to the straight line formed by connecting the two ends of arc segment II (72), arc segment II (72) causes the left pattern block (2) to bulge inward; relative to the straight line formed by connecting the two ends of arc segment III (81), arc segment III (81) causes the left pattern block (2) to bulge inward; relative to the straight line formed by connecting the two ends of arc segment IV (82), arc segment IV (82) causes the left pattern block (2) to bulge outward.

5. The tire tread pattern for mining machinery according to claim 3, characterized in that: Between arc segment I (71) and straight segment III (80), the left tread block is widest in the tire circumference; between arc segment II (72) and arc segment IV (82), the width begins to widen for the second time in the tire circumference.

6. The tire tread pattern for mining machinery according to claim 3, characterized in that: Straight segments VI (74) and V (84) are located at the shoulder of the fetus, and the distance between them gradually increases from the outermost part of the crown to the shoulder and side of the fetus.

7. The tire tread pattern for mining machinery according to claim 1, characterized in that: The maximum width L3 of the longitudinal stiffener (10) is 0.2-0.3 of the maximum width L2 of the left or right patterned block, and the thickness of the longitudinal stiffener is 1 / 5-1 / 4 of the thickness of the left or right patterned block.

8. A tire suitable for mining machinery, characterized in that: The tire tread pattern is the tire tread pattern described in any one of claims 1-7.

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