A hard rock special tire block group and a tire pattern formed by the same

Abstract

The utility model relates to a mine vehicle tire, especially relates to a hard mine special tire pattern, a hard mine special tire pattern, the tire pattern includes the pattern block group that is spaced apart along the tire circumference, forms the transverse pattern groove between the pattern block group, is connected through the second reinforcing rib between the central pattern block of adjacent pattern block group, is connected through the third reinforcing rib between the same side shoulder pattern block of adjacent pattern block group, the pattern block group includes central pattern block and shoulder pattern block, shoulder pattern block sets up in the both sides of central pattern block, the pattern block group is centrosymmetric, and central pattern block and two sides shoulder pattern block are connected respectively through the first reinforcing rib between, the utility model provides a kind of hard mine special tire pattern, central pattern block and shoulder pattern block all adopt the design of big pattern block, increase pattern saturation, with better mileage life.

Description

Technical Field

[0001] This utility model relates to tires for mining vehicles, and more particularly to a hard mining-specific tire tread block assembly and the tire tread pattern formed therefrom. Background Technology

[0002] Tire tread pattern is a crucial element in improving vehicle performance and ensuring driving safety. It is a very critical design aspect. Choosing the correct tire tread pattern is extremely important. The appropriate tread pattern should be selected based on the vehicle's intended use, road conditions, and vehicle speed.

[0003] Currently, wide-body dump trucks are the main mode of vehicle transportation in major metal mining areas in China. The roads in hard metal mining areas are often gravelly and cut, and the road conditions are not maintained in a timely manner. The overall operating environment is harsh, which places high demands on tires. In order to improve the service life of tires, deep tread patterns are often used in harsh metal mining areas. The tread pattern design takes into account the operating environment of metal mining areas, including climbing, stone removal, tread block cutting, cutting extension, and prevention of cracking at the bottom of the ditch. Utility Model Content

[0004] Existing tread patterns cannot adapt to the extreme environment of mining areas, and tire lifespan and structural strength cannot be balanced. This utility model provides a hard mining-specific tire tread block assembly and the tire tread pattern formed therefrom.

[0005] The specific technical solution of this utility model is as follows: A tire tread block assembly includes a central tread block and shoulder tread blocks, with the shoulder tread blocks positioned on either side of the central tread block. The tread block assembly is centrally symmetrical, with its center of symmetry at Q. One half of the central tread block is formed by line segments ab, bc, cd, de, and ef connected sequentially to form a pentagon abcdef. The other half of the central tread block is obtained by rotating this half 180° about the midpoint Q of line segment af. The other half of the central tread block is formed by line segments a'b', b'c', c'd', d'e', and e'f connected sequentially. The tire shoulder tread blocks are connected to form a pentagon a'b'c'd'e'f'; the pentagon klmno is formed by connecting line segments kl, lm, mn, no, and ko in sequence. The two tire shoulder tread blocks are centrally symmetrical about the midpoint Q of line segment af. The angle between line segments ab and de is 9°-9.5°, the angle between line segments cd and mn is 5°-5.5°, the angle between line segments kl and no is 4°-4.5°, and line segment bc is parallel to line segment nl. The central tread block and the two tire shoulder tread blocks are connected by a first reinforcing rib.

[0006] The edges of the central tread block and the shoulder tread block are all obtuse angles, and the edge angles ∠f and ∠f' of the central tread block are concave angles.

[0007] The area of ​​the shoulder tread block is 48% to 52% of the area of ​​the central tread block; the width of the first reinforcing rib is 1 / 5 to 1 / 4 of the width of the shoulder tread block, and the thickness of the first reinforcing rib is 70% to 75% of the thickness of the shoulder tread block.

[0008] A tire tread pattern for hard minerals, the tire tread pattern comprising tread block groups spaced apart along the circumference of the tire, the tread block groups forming transverse tread grooves; the central tread blocks of adjacent tread block groups are connected by a second reinforcing rib; the shoulder tread blocks of adjacent tread block groups on the same side are connected by a third reinforcing rib.

[0009] The depth of the lateral tread grooves gradually increases and then gradually decreases from the center line of the tread to both sides of the tire shoulders. The distance from the deepest point of the lateral tread grooves to the center line of the tread is 1 / 4 of the tire tread width.

[0010] The width of the lateral tread grooves gradually increases from the center line of the tire tread to the two tire shoulders.

[0011] The bottom of the transverse tread groove is evenly provided with stone-laying platforms on both sides of the center line of the tread, and the thickness of the stone-laying platforms is 3 / 5 to 4 / 5 of the thickness of the third reinforcing rib.

[0012] The thickness of the first reinforcing rib is 70% to 75% of the pattern depth; the thickness of the second reinforcing rib is 2 / 5 to 1 / 2 of the thickness of the central pattern block, and the width of the second reinforcing rib is 1 / 4 to 1 / 3 of the width of the central pattern block; the thickness of the third reinforcing rib is 1 / 5 to 1 / 4 of the pattern depth.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention provides a tire tread pattern specifically designed for hard mining applications. Both the central tread block and the shoulder tread block utilize a large tread block design, increasing tread saturation and resulting in better mileage life. Reinforcing ribs connect tread block groups and adjacent groups, ensuring performance against hard mining while improving tread block rigidity and facilitating stress release, thus reducing tread block cutting extension. The third reinforcing rib effectively protects the belt layer endpoints, and the stone-removing platform design effectively reduces groove bottom cutting and the risk of groove bottom cracking. The combined application of these designs contributes to improving the service life of tires used in mining areas. Attached Figure Description

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

[0015] Figure 2 This is a three-dimensional structural diagram of the tire tread pattern of this utility model.

[0016] Among them, 1 is the shoulder tread block, 2 is the central tread block, 3 is the first reinforcing rib, 4 is the second reinforcing rib, 5 is the third reinforcing rib, 6 is the transverse tread groove, and 8 is the stone platform. Detailed Implementation

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model has been further described above in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model.

[0018] In this utility model, such as Figure 1 As shown, the tire tread width is W, and the tread centerline CL refers to the line located in the middle of the tire tread along the circumference.

[0019] like Figure 1 , 2 As shown, a tire tread pattern for hard minerals includes tread blocks spaced apart along the tire circumference, with transverse tread grooves 6 formed between the tread blocks; the central tread blocks 2 of adjacent tread blocks are connected by a second reinforcing rib 4; and the shoulder tread blocks 2 of adjacent tread blocks are connected by a third reinforcing rib 5.

[0020] The tread pattern group includes a central tread pattern 2 and shoulder tread pattern 1. The shoulder tread pattern 1 is located on both sides of the central tread pattern 2. The tread pattern group is centrally symmetrical, with its center of symmetry being Q. One half of the central tread pattern 2 is formed by connecting line segments ab, bc, cd, de, and ef in sequence to form a pentagon abcdef. The other half of the central tread pattern 2 is obtained by rotating one half of the central tread pattern 2 180° about the midpoint Q of line segment af. The other half of the central tread pattern 2 is formed by connecting line segments a'b', b'c', c'd', d'e', and e'f' in sequence. The tire shoulder tread blocks 1 are formed by connecting line segments kl, lm, mn, no, and ko in sequence to form a pentagon klmno. The two tire shoulder tread blocks 1 are centrally symmetrical about the midpoint Q of line segment af. The angle between line segments ab and de is 9°-9.5°, the angle between line segments cd and mn is 5°-5.5°, the angle between line segments kl and no is 4°-4.5°, and line segment bc is parallel to line segment nl. The central tread block 2 and the two tire shoulder tread blocks 1 are connected by the first reinforcing rib 3.

[0021] By using reinforcing ribs to connect the same patterned block group and adjacent patterned block groups, the rigidity of the patterned blocks is improved while ensuring the cutting performance of hard minerals, thus helping to release stress and reduce the cutting extension of the patterned blocks.

[0022] The edges of the central pattern block 2 and the shoulder pattern block 1 are all obtuse angles, and the edge angles ∠f and ∠f' of the central pattern block 2 are concave angles.

[0023] The area of ​​the shoulder tread block 1 is 48% to 52% of the area of ​​the central tread block 2; the width of the first reinforcing rib 3 is 1 / 5 to 1 / 4 of the width of the shoulder tread block 1, and the thickness of the first reinforcing rib 3 is 70% to 75% of the thickness of the shoulder tread block 1.

[0024] The transverse tread grooves 6 are centrally symmetrical, with O as the center of symmetry, which is located on the center line of the tread.

[0025] The depth of the lateral tread groove 6 gradually increases and then gradually decreases from the center line of the tread to both sides of the tire shoulder. The distance from the deepest point of the lateral tread groove 6 to the center line of the tread is 1 / 4 of the tire tread width. When the tire is in use, the tread wears down, and a certain tread depth is required to ensure the tire's service life. The gradual setting of the lateral tread groove depth can ensure the product's service life while increasing the thickness of the base rubber and reducing the risk of punctures to the belt layer.

[0026] The width of the transverse tread groove 6 gradually increases from the center line of the tire tread to the two tire shoulders.

[0027] The transverse tread groove 6 has evenly spaced stone-removing platforms 8 on both sides of the tread centerline. The thickness of the stone-removing platforms 8 is 3 / 5 to 4 / 5 of the thickness of the third reinforcing rib 5. The design of the stone-removing platforms can effectively reduce the cutting of the tread groove bottom and reduce the risk of groove bottom cracks.

[0028] The thickness 3 of the first reinforcing rib is 70% to 75% of the tread depth; the tread depth refers to the vertical distance from the bottom of the transverse tread groove to the tread surface. The thickness of the second reinforcing rib 4 is 2 / 5 to 1 / 2 of the thickness of the central tread block 2, and the width of the second reinforcing rib 4 is 1 / 4 to 1 / 3 of the width of the central tread block 2; the width is along the transverse direction of the tire. The thickness of the third reinforcing rib 5 is 1 / 5 to 1 / 4 of the tread depth.

[0029] The angle between the centerline of the transverse tread groove 6 and the centerline of the tread increases and then decreases from the centerline of the tread to the two tire shoulders. The distance from the centerline of the tread to the centerline of the tread at the maximum angle of the transverse tread groove 6 is 1 / 3 to 2 / 3 of the tire tread width.

[0030] The above description is only a preferred embodiment of this utility model. It should be noted that, for those skilled in the art of mining tires, several detailed changes and improvements can be made without departing from the overall concept of this utility model. These changes are not limited to the transition forms of the tread block ratio, angle, and distance, and should also be considered within the scope of protection of this utility model.

Claims

1. A tire tread block assembly, characterized in that, The tread pattern group includes a central tread pattern (2) and shoulder tread pattern (1). The shoulder tread pattern (1) is located on both sides of the central tread pattern (2). The tread pattern group is centrally symmetrical, with its center of symmetry being Q. One half of the central patterned block (2) is formed by connecting line segments ab, bc, cd, de, and ef in sequence to form a pentagon abcdef. The other half of the central patterned block is obtained by rotating one half of the central patterned block 180° about the midpoint Q of line segment af. The other half of the central patterned block (2) is formed by connecting line segments a'b', b'c', c'd', d'e', and e'f' in sequence to form a pentagon a'b'c'd'e'f'. The shoulder tread block (1) is formed by connecting line segments kl, lm, mn, no, and ko in sequence to form a pentagon klmno. The two shoulder tread blocks (1) are centrally symmetrical about the midpoint Q of line segment af. The angle between line segment ab and line segment de is 9°-9.5°, the angle between line segment cd and line segment mn is 5°-5.5°, the angle between line segment kl and line segment no is 4°-4.5°, and line segment bc∥line segment nl; The central tread block (2) and the two side shoulder tread blocks (1) are connected by the first reinforcing rib.

2. The tire tread block assembly as described in claim 1, characterized in that, The edge angles of the central pattern block (2) and the shoulder pattern block (1) are all obtuse angles, and the edge angles ∠f and ∠f' of the central pattern block are concave angles.

3. A tire tread block assembly as described in claim 2, characterized in that, The area of ​​the shoulder tread block (1) is 48% to 52% of the area of ​​the central tread block (2); the width of the first reinforcing rib (3) is 1 / 5 to 1 / 4 of the width of the shoulder tread block (1), and the thickness of the first reinforcing rib (3) is 70% to 75% of the thickness of the shoulder tread block (1).

4. A tire tread pattern specifically for hard minerals, characterized in that, The tire tread pattern includes tread blocks as described in any one of claims 1-3, which are distributed at intervals along the tire circumference, and the tread blocks form transverse tread grooves (6) between them. The central patterned blocks (2) of adjacent patterned block groups are connected by a second reinforcing rib (4); The tread blocks (1) on the same side of adjacent tread block groups are connected by a third reinforcing rib (5).

5. The tire tread pattern for hard minerals as described in claim 4, characterized in that, The depth of the lateral tread groove (6) gradually increases from the center line of the tread to the two sides of the tire shoulder and then gradually decreases. The distance from the deepest part of the lateral tread groove (6) to the center line of the tread is 1 / 4 of the tire tread width.

6. The tire tread pattern for hard minerals as described in claim 5, characterized in that, The width of the transverse tread groove (6) gradually increases from the center line of the tread to the two sides of the tire shoulder.

7. The tire tread pattern for hard minerals as described in claim 6, characterized in that, The bottom of the transverse tread groove (6) is evenly provided with stone-laying platforms on both sides of the center line of the tire tread, and the thickness of the stone-laying platform is 3 / 5-4 / 5 of the thickness of the third reinforcing rib.

8. The tire tread pattern for hard minerals as described in claim 7, characterized in that, The thickness of the first reinforcing rib (3) is 70% to 75% of the pattern depth; the thickness of the second reinforcing rib (4) is 2 / 5 to 1 / 2 of the thickness of the central pattern block (2), and the width of the second reinforcing rib (4) is 1 / 4 to 1 / 3 of the width of the central pattern block (2); the thickness of the third reinforcing rib (5) is 1 / 5 to 1 / 4 of the pattern depth.

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