Tread pattern of agricultural truck tire and tire

Abstract

According to the tread pattern of the agricultural truck tire and the tire provided by the utility model, the ground contact area of the tire on a muddy road surface is ensured by adding the first transverse connection reinforcing rib, the second longitudinal connection reinforcing rib and the first longitudinal connection reinforcing rib. Meanwhile, the connecting reinforcing ribs are additionally arranged between the pattern blocks, and the tire shoulder pattern is provided with the second transverse connecting reinforcing ribs and the third transverse connecting reinforcing ribs, so that crack extension of the pattern blocks is reduced, the grounding pressure of the pattern blocks can be dispersed, the tire is uniformly stressed, smaller grounding pressure is realized, and the tire is suitable for loose soil.

Description

Technical Field

[0001] The utility model relates to an agricultural tire, in particular to a tread pattern and a tire of an agricultural truck tire. Background Art

[0002] The pattern is an important factor in improving vehicle performance and is a very crucial design item in tire design. How to correctly select the tire pattern form is of vital importance. The appropriate pattern tire form should be selected according to the vehicle use, the road conditions and the vehicle speed.

[0003] At present, for agricultural tires such as the high-floatation agricultural radial tire of CN203681159U and the tire of CN307615407S (agricultural radial tire IMP800), the pattern saturation is relatively low and it is easy to deform. Therefore, the wear resistance requirement for the pattern blocks is relatively high. The use environment of agricultural tires is relatively poor, and the loose soil provides less support pressure to the tires. Therefore, the tires need to be stressed evenly to achieve a smaller ground contact pressure. In view of the development direction of tires for the global agricultural machinery vehicle market, better solutions are needed. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides a tread pattern and a tire of an agricultural truck tire, which have a high pattern saturation, the tires are stressed evenly, achieve a smaller ground contact pressure, and are suitable for use on loose soil.

[0005] The technical solution of the utility model is as follows: A tread pattern of an agricultural truck tire, the tread pattern includes a central pattern block arranged along the circumferential direction of the tire. On the right side of the central pattern block, a second pattern block arranged along the circumferential direction of the tire and a first pattern block arranged along the circumferential direction of the tire are successively provided. On the left side of the central pattern block, a fourth pattern block arranged along the circumferential direction of the tire and a third pattern block arranged along the circumferential direction of the tire are successively provided. The central pattern block is formed by alternating the fifth pattern block and the sixth pattern block. The fifth pattern block and the sixth pattern block are connected by a first transverse connecting reinforcing rib. The central pattern block columns formed by alternating the fifth pattern block and the sixth pattern block are wavy; The first pattern block and the second pattern block are connected by a first longitudinal connecting reinforcing rib, and the third pattern block and the fourth pattern block are connected by a second longitudinal connecting reinforcing rib; Second transverse connecting reinforcing ribs and third transverse connecting reinforcing ribs are respectively arranged on both sides of the first pattern block and the second pattern block; The third pattern block and the fourth pattern block are obtained by symmetrically moving the first pattern block and the second pattern block and then moving 50 - 100 mm; First transverse pattern grooves are arranged between the first pattern block and the second pattern block and the longitudinally adjacent pattern blocks, and second transverse pattern grooves are arranged between the third pattern block and the fourth pattern block and the longitudinally adjacent pattern blocks.

[0006] The ratio of the surface area of the second pattern block to the first pattern block is 70% - 80%. From the center of the tread to the shoulder of the tire, the first transverse pattern groove is an involute pattern groove.

[0007] The ratio of the surface area of ​​the fifth pattern block to the sixth pattern block is 50%-60%.

[0008] The widths of the first transverse connecting reinforcing rib at both ends in the length direction are respectively consistent with the pattern width connecting the fifth pattern block and the sixth pattern block, and the width is 9-11mm. The thickness of the reinforcing rib is 0.5-0.6 of the pattern blocks on both sides.

[0009] The lengths of both ends of the first longitudinal connecting reinforcing rib in the width direction are consistent with the lengths of the second pattern block and the first pattern block connected thereto, and the thickness of the first longitudinal connecting reinforcing rib is 0.7-0.8 of the thickness of the pattern blocks connected thereto on both sides.

[0010] The width of the second transverse connecting reinforcing rib is 60%-70% of the total width of the first pattern block and the second pattern block, and the width of the third transverse connecting reinforcing rib is 80%-90% of the total width of the first pattern block and the second pattern block. The left end of the second transverse connecting reinforcing rib is at the 1 / 2 position of the second pattern block, and the left end of the third transverse connecting reinforcing rib is connected to the left end of the second pattern block. Because the lower left corner of the second pattern block is an acute angle, stress concentration will occur, which is easy to fall off. The third transverse connecting reinforcing rib is used to reduce stress concentration and enhance the rigidity and wear resistance of the pattern block. The thickness of the second transverse connecting reinforcing rib and the third transverse connecting reinforcing rib is 40%-45% of the thickness of the first pattern block or the second pattern block.

[0011] The first pattern block, the second pattern block, the third pattern block and the fourth pattern block on both sides of the central pattern block adopt a herringbone design.

[0012] An agricultural truck tire comprises the tread pattern.

[0013] The utility model has the beneficial effects of providing a tread pattern and a tire for an agricultural truck tire, which ensures the ground contact area of ​​the tire on a muddy road by adding a first transverse connecting reinforcement rib, a second longitudinal connecting reinforcement rib, and a first longitudinal connecting reinforcement rib. At the same time, connecting reinforcement ribs are added between the pattern blocks, and the shoulder pattern is provided with a second transverse connecting reinforcement rib and a third transverse connecting reinforcement rib, which reduces the extension of the pattern block cracks and can disperse the ground contact pressure of the pattern block, so that the tire is evenly stressed and achieves a smaller ground contact pressure, which is suitable for use in loose soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure.

[0016] 1 is the first tread block; 2 is the second tread block; 3 is the third tread block; 4 is the fourth tread block; 5 is the fifth tread block; 6 is the sixth tread block; 7 is the first transverse tread groove; 8 is the second transverse tread groove; 9 is the second longitudinal connection and reinforcement rib; 10 is the first longitudinal connection and reinforcement rib; 11 is the first transverse connection and reinforcement rib; 13 is the second transverse connection and reinforcement rib; 14 is the third transverse connection and reinforcement rib. Detailed implementation mode

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and cannot be construed as limiting the protection scope of the present invention. Those skilled in the art can make some non-essential improvements and adjustments based on the content of the present invention below. In the present invention, unless otherwise clearly defined and limited, the technical terms used in this application should have the ordinary meaning understood by those skilled in the art of the present invention. Terms such as "connected", "connected", "fixed", "set", etc. should be understood in a broad sense. It can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium; it can be a mechanical connection or an electrical connection. Unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above" or "above" or "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "under" or "below" or "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature. Relative terms such as first, second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0018] Such as Figure 1 And Figure 2As shown in the figure, a tread pattern of an agricultural truck tire includes a central tread block arranged along the circumferential direction of the tire. To the right of the central tread block, there are successively arranged a second tread block 2 and a first tread block 1 along the circumferential direction of the tire. To the left of the central tread block, there are successively arranged a fourth tread block 4 and a third tread block 3 along the circumferential direction of the tire. The central tread block is formed by alternating the fifth tread block 5 and the sixth tread block 6. The fifth tread block 5 and the sixth tread block 6 are connected by a first transverse connecting reinforcing rib 11. The central tread block formed by the alternating arrangement of the fifth tread block 5 and the sixth tread block 6 is wavy; the first tread block 1 and the second tread block 2 are connected by a first longitudinal connecting reinforcing rib 10, and the third tread block 3 and the fourth tread block 4 are connected by a second longitudinal connecting reinforcing rib 9; on both sides of the first tread block 1 and the second tread block 2, there are respectively arranged a second transverse connecting reinforcing rib 13 and a third transverse connecting reinforcing rib 14; the third tread block 3 and the fourth tread block 4 are obtained by symmetrically moving the first tread block 1 and the second tread block 2 along the central axis CL and then moving 50 - 100 mm; between the first tread block 1 and the second tread block 2 and the longitudinally adjacent tread blocks, there is arranged a first transverse tread groove 7, and between the third tread block 3 and the fourth tread block 4 and the longitudinally adjacent tread blocks, there is arranged a second transverse tread groove 8. Therefore, the first transverse tread groove 7 can be symmetrically moved along the central axis and then completely coincide with the second transverse tread groove 8. The first tread block 1, the second tread block 2, the third tread block 3, the fourth tread block 4, the first transverse tread groove 7, the second transverse tread groove 8, the second longitudinal connecting reinforcing rib 9, and the first longitudinal connecting reinforcing rib 10 are divided into left and right parts along the central axis CL where points P1 and P2 are located. The left part can be symmetrically moved along the central axis and then completely coincide with the right part.

[0019] The tread block 5 and the tread block 6 are alternately arranged longitudinally.

[0020] The central tread block formed by the alternating arrangement of the fifth tread block 5 and the sixth tread block 6 is wavy, and the adjacent fifth tread block 5 and sixth tread block 6 are in a zigzag shape, as Figure 1 shown.

[0021] Since the third tread block 3 and the fourth tread block 4 are obtained by symmetrically moving the first tread block 1 and the second tread block 2 along the central axis CL and then moving. Therefore, correspondingly, on both sides of the third tread block 3 and the fourth tread block 4, there are respectively arranged a second transverse connecting reinforcing rib 13 and a third transverse connecting reinforcing rib 14.

[0022] The third tread block 3 and the fourth tread block 4 are obtained by symmetrically moving the first tread block 1 and the second tread block 2 along the central axis and then moving 80 mm.

[0023] The ratio of the surface area of the second tread block 2 to that of the first tread block 1 is 70%-80%. From the center of the tread to the shoulder, the first transverse tread groove 7 is an involute tread groove. The involute tread groove has stronger mud evacuation and grip performance.

[0024] The ratio of the surface area of the fifth tread block 5 to that of the sixth tread block 6 is 50%-60%, optimizing the saturation of the middle tread block and improving the stability of the tire during high-speed driving.

[0025] In this application, the circumferential direction of the tire is defined as the length direction; thus, the widths at both ends in the length direction of the first transverse connecting rib 11 are respectively consistent with the tread widths connecting the fifth tread block 5 and the sixth tread block 6, with a width of 9-11 mm, and the thickness of the first transverse connecting rib 11 is 0.5-0.6 of the tread blocks connected on both sides of it, optimizing the tread grounding continuity, with uniform force, small grounding pressure, reducing soil compaction degree and protecting the soil.

[0026] The lengths at both ends in the width direction of the first longitudinal connecting rib 10 are consistent with the lengths of the second tread block 2 and the first tread block 1 connected by it, and the thickness of the first longitudinal connecting rib 10 is 0.7-0.8 of the thicknesses of the tread blocks connected on both sides of it, reducing the deformation degree during use and improving the traction performance of the tire.

[0027] The settings of the second transverse connecting rib 13 and the third transverse connecting rib 14 are to enhance the wear resistance and mud evacuation performance of the tire.

[0028] The width of the second transverse connecting rib 13 is 60%-70% of the total width of the first tread block 1 and the second tread block 2, and the width of the third transverse connecting rib 14 is 80%-90% of the total width of the first tread block 1 and the second tread block 2. The left end of the second transverse connecting rib 13 is at the 1 / 2 position of the second tread block 2, and the left end of the third transverse connecting rib 14 is connected to the left end of the second tread block 2. Because the lower left corner of the second tread block 2 is an acute angle, stress concentration will occur and it is easy to break off blocks. The third transverse connecting rib 14 is to reduce stress concentration and enhance the rigidity and wear resistance of the tread block. The thicknesses of the second transverse connecting rib 13 and the third transverse connecting rib 14 are 40%-45% of the thickness of the first tread block 1 or the second tread block 2.

[0029] In addition, the tread saturation of the tire in this application is 50%-55%.

[0030] The first tread block 1, the second tread block 2, the third tread block 3 and the fourth tread block 4 on both sides of the center tread block adopt a herringbone design. The herringbone design is a directional design, improving the driving performance and traction performance of the tire. The herringbone design is a commonly used design in the prior art, such as CN209869967U - A Herringbone Pattern Pneumatic Tire for Paddy Field.

[0031] An agricultural truck tire includes the tread pattern described above.

[0032] Compared with the prior art, the present utility model provides a tread pattern and a tire for an agricultural truck tire. By adding the first transverse connection reinforcing rib 11, the second longitudinal connection reinforcing rib 10, and the first longitudinal connection reinforcing rib 9, the ground contact area of the tire on a muddy road surface is ensured. At the same time, connection reinforcing ribs are added between the tread blocks, and the second transverse connection reinforcing rib and the third transverse connection reinforcing rib are provided on the shoulder tread, reducing the crack extension of the tread blocks and dispersing the ground pressure of the tread blocks, so that the tire is evenly stressed, achieving a smaller ground pressure and being suitable for use on loose soil; when designing the tread pattern, "herringbone" tread blocks are adopted to improve the driving performance and traction performance of the tire; the transverse tread groove 7 is designed as an involute tread groove, which is beneficial to drainage and mud discharge while ensuring the driving ability; the middle high-saturation pattern optimizes the ground pressure distribution and enhances the stability during driving; the ground contact continuity of the pattern is optimized, reducing the ground pressure, lowering the soil compaction degree, and protecting the soil. The above designs are comprehensively applied, taking into account design requirements such as stability, mud discharge performance, traction performance, ground contact smoothness and ground contact uniformity under low air pressure during driving, improving the service life of the tire, especially being beneficial to improving the service life of agricultural truck tires in harsh environments.

[0033] The above is only the preferred embodiment of the present utility model, rather than all the embodiments. The protection scope of the present utility model is not limited thereto. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not conflict, it should be considered as the scope recorded in this specification. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model. It should be noted that for those skilled in the art and any person familiar with the technical field, without departing from the overall concept and the principle spirit of the present utility model, equivalent replacements or changes made according to the technical solution and the inventive concept of the present utility model, as well as several changes and improvements made, should also be regarded as the protection scope of the present utility model.

Claims

1. A tread pattern of an agricultural truck tire, characterized in that: The tread pattern comprises a central pattern block arranged along the circumference of the tire, a second pattern block (2) arranged along the circumference of the tire and a first pattern block (1) arranged along the circumference of the tire are arranged in sequence on the right side of the central pattern block, a fourth pattern block (4) arranged along the circumference of the tire and a third pattern block (3) arranged along the circumference of the tire are arranged in sequence on the left side of the central pattern block, the central pattern block is a fifth pattern block (5) and a sixth pattern block (6) arranged alternately, the fifth pattern block (5) and the sixth pattern block (6) are connected by a first transverse connecting reinforcing rib (11), and the central pattern block formed by the alternating arrangement of the fifth pattern block (5) and the sixth pattern block (6) is in a wave shape; the first pattern block (1) and the second pattern block (2) are connected by a first longitudinal connecting reinforcing rib (11). The third pattern block (3) and the fourth pattern block (4) are connected by a longitudinal connecting reinforcement rib (10); the third pattern block (3) and the fourth pattern block (4) are connected by a second longitudinal connecting reinforcement rib (9); a second transverse connecting reinforcement rib (13) and a third transverse connecting reinforcement rib (14) are respectively arranged on both sides of the first pattern block (1) and the second pattern block (2); the third pattern block (3) and the fourth pattern block (4) are obtained by symmetrically moving the first pattern block (1) and the second pattern block (2) by 50-100 mm; a first transverse pattern groove (7) is arranged between the first pattern block (1) and the second pattern block (2) and the longitudinally adjacent pattern blocks, and a second transverse pattern groove (8) is arranged between the third pattern block (3) and the fourth pattern block (4) and the longitudinally adjacent pattern blocks.

2. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The ratio of the surface area of ​​the second pattern block (2) to that of the first pattern block (1) is 70%-80%, and from the center of the tread to the shoulder, the first transverse pattern groove (7) is an involute pattern groove.

3. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The ratio of the surface area of ​​the fifth pattern block (5) to the surface area of ​​the sixth pattern block (6) is 50%-60%.

4. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The widths of the first transverse connecting reinforcing rib (11) at both ends in the length direction are respectively consistent with the pattern widths of the fifth pattern block (5) and the sixth pattern block (6) connected thereto, and are 9-11 mm. The thickness of the reinforcing rib is 0.5-0.6 of the pattern blocks on both sides thereof.

5. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The lengths of both ends of the first longitudinal connecting reinforcing rib (10) in the width direction are consistent with the lengths of the second pattern block (2) and the first pattern block (1) connected thereto, and the thickness of the first longitudinal connecting reinforcing rib (10) is 0.7-0.8 of the thickness of the pattern blocks connected thereto on both sides.

6. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The width of the second transverse connecting reinforcing rib (13) is 60%-70% of the total width of the first pattern block (1) and the second pattern block (2), and the width of the third transverse connecting reinforcing rib (14) is 80%-90% of the total width of the first pattern block (1) and the second pattern block (2); the left end of the second transverse connecting reinforcing rib (13) is located at 1 / 2 of the second pattern block (2), and the left end of the third transverse connecting reinforcing rib (14) is connected to the left end of the second pattern block (2); the thickness of the second transverse connecting reinforcing rib (13) and the third transverse connecting reinforcing rib (14) is 40%-45% of the thickness of the first pattern block (1) or the second pattern block (2).

7. The tread pattern of the agricultural truck tire according to claim 1, characterized in that: The first pattern block (1), the second pattern block (2), the third pattern block (3) and the fourth pattern block (4) on both sides of the central pattern block adopt a herringbone design.

8. An agricultural truck tire, characterized in that: The tread pattern comprises the tread pattern described in any one of claims 1 to 7.

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