A mine tire tread pattern groove and a tread pattern formed by the same

Abstract

The utility model relates to a tire field, concretely relates to a mine tire tread pattern groove and tread pattern formed by it, a mine tire tread pattern groove, the tread pattern groove includes the tread pattern groove I, tread pattern groove II, tread pattern groove III, tread pattern groove IV and tread pattern groove V that communicate in proper order, the interval between the front end edge and rear end edge of tread pattern groove I, tread pattern groove II, tread pattern groove III, tread pattern groove IV gradually widens gradually, the depth of tread pattern groove gradually deepens from end line to the outermost end of tread pattern groove IV. The design that the depth of tread pattern groove gradually deepens from the inside of tire tread to the outside has excellent drainage performance, when driving in the rainy day, the deeper pattern groove close to the outside of tire can quickly drain a large amount of accumulated water, reduces the risk of "water slide effect", the shallower pattern groove close to the inside of tire assists to dredge the remaining moisture, forms gradient drainage, improves the driving safety in wetland.

Description

Technical Field

[0001] This utility model relates to the field of tires, specifically to a tread groove of a mining tire and the tread pattern formed therefrom. Background Technology

[0002] In recent years, the development of the mining industry has received much attention from the state, and many policies have been introduced to support its development. As a result, the demand for mining tires has been increasing. Miners work in harsh environments with ore for long periods of time, resulting in short tire lifespans. In particular, Southeast Asian mines have a lot of mud and water, so there are high requirements for the performance of mining tires.

[0003] The tires designed in this project are mainly used in mines in Southeast Asia. Typically, the working environment of these tires is characterized by many rocks and muddy water. Therefore, mining tires should have good drainage capacity and high wear resistance to ensure even force distribution during driving, reduce wear, and improve tire stability and service life. Utility Model Content

[0004] To address the technical challenges of high drainage capacity and wear resistance requirements for mining tires, this utility model provides a mining tire tread groove and the tread pattern formed therefrom.

[0005] The specific technical solution of this utility model is as follows: A mining tire tread groove includes tread groove I, tread groove II, tread groove III, tread groove IV, and tread groove V connected sequentially. The sidewall edges of tread grooves I, II, III, and IV are arranged parallel to each other. The sidewall edges of tread groove V are generally funnel-shaped, with the smaller opening end directly connected to the end of tread groove IV. One sidewall edge of the tread groove is the front edge, and the other sidewall edge is the rear edge. The endpoints of the front edge I and the rear edge I of tread groove I are connected by an end line. The distance between the front and rear edges of tread grooves I, II, III, and IV gradually widens. The depth of the tread groove gradually increases from the end line to the outermost end of tread groove IV.

[0006] The depth h1 of tread groove I is 24-26 mm, the depth h2 of tread groove II is 26-28 mm, the depth h3 of tread groove III is 28-30 mm, the depth h4 of tread groove IV is 30-35 mm, and the depth h5 of tread groove V is 35-50 mm; the distance w1 between the front edge I and the rear edge I of tread groove I is 11-13 mm; the distance w2 between the front edge II and the rear edge II of tread groove II is 17-19 mm; the distance w3 between the front edge III and the rear edge III of tread groove III is 19-21 mm; the distance w4 between the front edge IV and the rear edge IV of tread groove IV is 24-26 mm; and the minimum parallel width w between the front edge V and the rear edge V of tread groove V is... 51 The maximum parallel width w between the front edge V and the rear edge V of the tread groove V is 25-27 mm. 52 The length L is 30-32 mm; the length of the front edge I of the tread groove I is... 11 The length L is 17-19 mm; the length of the rear edge I of the tread groove I is... 12 It is 9-11 mm; the length L of the front edge II of tread groove II is 9-11 mm. 21 It is 14-16 mm; the length L of the rear edge II of tread groove II. 22 It is 20-22 mm; the length L of the front edge III of tread groove III is 20-22 mm. 31 It is 10-12 mm; the length L of the rear edge III of tread groove III is 10-12 mm. 32 The length L of the front edge IV of the tread groove IV is 6-8mm. 41 The length L of the rear edge IV of the tread groove IV is 17-19mm. 42 The length L of the front edge IV of the tread groove IV is 19-21 mm. 51 It is 15-17 mm; the length L of the rear edge III of tread groove IV is... 52 It is 15-17 mm.

[0007] The angle Q between the front edge I of the tread groove I and the groove wall and the normal direction of the upper end of the groove wall. I The angle is 19.5°-20.5°; the angle Q between the front edge II groove wall and the upper end of the groove wall in the normal direction is 19.5°-20.5°. II The angle is 17.5-18.5°; the angle Q between the front edge III groove wall and the upper end of the groove wall in the normal direction is 17.5-18.5°. IIIThe angle is 16.5-17.5°; the angle Q between the front edge of tread groove IV and the normal direction of the upper end of the groove wall is 16.5-17.5°. IV The angle is 15.5°-16.5°; the angle Q between the front edge V of the tread groove V and the normal direction of the upper end of the groove wall. V The angles are 14.5°-15.5°; the angles between the rear edge I of tread groove I, the rear edge II of tread main groove II, the rear edge III of tread main groove III, the rear edge IV of tread main groove IV, and the rear edge V of tread main groove V and the normal direction of the upper end of the groove wall are all 4.5°-5.5°.

[0008] The edges of the sidewalls of tread grooves I, II, III, IV, and V are all connected by a smooth arc with a radius R of 4-6 mm. The front end of the end line is connected to the front end of tread groove I, and the rear end of the end line is connected to the rear end of tread groove I by a smooth arc with a radius R of 4-6 mm. The tread grooves I, II, III, IV and V, as well as the main tread groove V, are all connected to the groove walls with a rounded transition with a radius of R3 of 2-3 mm.

[0009] The included angle α between tread groove I and tread groove II is 53-55°; the included angle b between tread groove II and tread groove III is 58-60°; the included angle c between tread groove III and tread groove IV is 63-65°; the included angle d between tread groove IV and the front edge V of tread groove V is 67-69°; and the included angle d between tread groove IV and the rear edge V of tread groove V is 81-83°.

[0010] The tread pattern is composed of the aforementioned tread grooves, which are located on both sides of the center of the tire crown. Each tread groove extends from the tire crown to both tire shoulders. The tread grooves on both sides are staggered after being symmetrical about the center line of the tread and do not overlap.

[0011] The perpendicular distance from the end line to the center line of the tread is 16-18 mm, and the spacing L between adjacent tread grooves along the tread circumference is 66.4-68.4 mm.

[0012] The aforementioned tread grooves form raised tread blocks, which extend toward the tire sidewall to form sidewall tread blocks.

[0013] The two sidewall edges of the sidewall of the tire sidewall are generally funnel-shaped, and the larger opening end is directly connected to the end of the tire sidewall.

[0014] The angle between the front edge o and the rear edge o' of the sidewall tread block and the radial horizontal line of the tread is 9-11°; the minimum width W between the front edge o and the rear edge o' of the sidewall tread block is 25-28 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The design of the tread grooves gradually deepening from the inside to the outside of the tire tread has excellent drainage performance. When driving in the rain, the deeper tread grooves near the outside of the tire can quickly drain a large amount of water, reducing the risk of "hydroplaning". The shallower tread grooves near the inside of the tire help to drain the remaining water, forming a gradient drainage and improving the safety of driving in wet areas. It can also improve the grip when turning. When the vehicle turns, the outer tire bears greater lateral force and pressure. The deeper tread grooves near the outside of the tire can increase the contact area and friction with the ground, reduce sideslip, and enhance steering stability. (2) The design of gradually increasing tread groove spacing allows water or mud to form a "gradient drainage" in the groove. As the tire rolls, the change in the groove from narrow to wide can accelerate the discharge of fluid, especially on muddy or deep water roads, effectively reducing the retention of debris in the groove and maintaining effective contact between the tire tread and the ground. Secondly, the stress at different positions of the tire tread is usually different. The design of increasing spacing can make the rigidity of the tread blocks on both sides of the groove change into a gradient distribution with the spacing. (3) The tread grooves form raised tread blocks, which are centrally symmetrical. The centrally symmetrical tread block design allows the tire to be more evenly stressed during driving. The mining environment is complex, and the tires often have to deal with various road conditions. This centrally symmetrical design can reduce local excessive wear and extend the tire's service life. Secondly, the centrally symmetrical tread design makes the contact state between the tire and the ground more consistent, providing more stable handling performance whether driving in a straight line or turning. On muddy, slippery and other harsh roads in the mining area, it can better grip the ground to ensure the safety and stability of the vehicle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the planar unfolded structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the tread groove structure of this utility model.

[0019] Figure 4 yes Figure 2 Sectional view of A-A'.

[0020] Figure 5 yes Figure 2 Sectional view of B-B'.

[0021] Figure 6 yes Figure 2 Cross-sectional view of C-C'.

[0022] Figure 7 yes Figure 2 Cross-sectional view of D-D'.

[0023] Figure 8 yes Figure 2 Sectional view of E-E'.

[0024] Figure 9 yes Figure 2 Cross-sectional view of F-F' in the middle.

[0025] Figure 10 yes Figure 2 Cross-sectional view of G-G'.

[0026] Figure 11 yes Figure 2 Cross-sectional view of H-H'.

[0027] Among them, 1 is the tread groove; 11 is the tread groove I; 111 is the front edge I; 112 is the rear edge I; 12 is the tread groove II; 121 is the front edge II; 122 is the rear edge II; 13 is the tread groove III; 131 is the front edge III; 132 is the rear edge III; 14 is the tread groove IV; 141 is the front edge IV; 142 is the rear edge IV; 15 is the tread groove V; 151 is the front edge IV; 152 is the rear edge IV; 16 is the end line; 2 is the tread block; 3 is the sidewall block; 31 is the front edge o; 32 is the rear edge o'; 4 is the secondary tread groove; 5 is the vent; 6 is the bump; 61 is the front edge p; 62 is the rear edge p'. Detailed Implementation

[0028] 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.

[0029] Figure 2 In the center, the top is front, the bottom is back, the furthest from the center line of the tire tread is outside, and the closest to the center line of the tire tread is inside.

[0030] like Figures 1-11As shown, a mining tire tread pattern is provided. The tread pattern is composed of tread grooves 1. The tread grooves 1 are located on both sides of the center of the tire crown. Each tread groove 1 extends from the tire crown to both sides of the tire shoulder. The tread grooves 1 on both sides are staggered after being symmetrical about the center line of the tread and do not overlap.

[0031] Raised tread pattern blocks 2 are formed between the tread grooves 1, and the tread pattern blocks 2 extend to the side of the tire to form sidewall pattern blocks 3.

[0032] Tread block 2 and sidewall block 3 are collectively referred to as tread blocks. These tread blocks are centrally symmetrical, a design that ensures more even stress distribution across the tire tread during driving. In the complex mining environment, tires frequently encounter various road conditions; this centrally symmetrical design reduces localized excessive wear and extends tire life. Furthermore, the centrally symmetrical tread design provides a more consistent contact between the tire and the ground, offering more stable handling performance whether driving straight or turning. On muddy, slippery, or other harsh surfaces in mining areas, it provides better grip, ensuring vehicle safety and stability.

[0033] The tread groove 1 includes tread grooves I 11, II 12, III 13, IV 14, and V 15 connected in sequence. The sidewall edges of tread grooves I 11, II 12, III 13, and IV 14 are arranged parallel to each other. The sidewall edges of tread groove V 15 are generally funnel-shaped, and the smaller end is directly connected to the end of tread groove IV 14. One sidewall edge of tread groove 1 is the front edge, and the other sidewall edge is the rear edge. The endpoints of the front edge I 111 and the rear edge I 112 of tread groove I 11 are connected by an end line 16. Tread grooves I 11, II 12, III 13, and IV 14 are arranged parallel to each other. 12. The distance between the front and rear edges of tread groove III and 13. Tread groove IV and 14 gradually widens. That is to say, the aforementioned gradually widening distance means that the depth of each tread groove segment increases sequentially from tread groove I 11 to tread groove IV 14; the depth of tread groove I gradually increases from end line 16 to the outermost end of tread groove IV 14.

[0034] The parallel edges of the sidewalls of tread grooves I, II, III, and IV form regular drainage and mud-removal channels, allowing mud and water to drain smoothly along a straight line from the tread. The gradually widening spacing of the tread grooves creates a "gradient drainage" effect, accelerating fluid discharge as the tire rolls. This is especially beneficial on muddy or flooded surfaces, effectively reducing debris buildup and maintaining effective contact between the tire and the ground. Furthermore, the increased spacing allows for better stress distribution on both sides of the grooves. The rigidity of the tread blocks varies with the spacing, forming a gradient distribution. The design of the tread grooves gradually deepening from the inside to the outside of the tire provides excellent drainage performance. When driving in the rain, the deeper grooves near the outside of the tire can quickly drain a large amount of water, reducing the risk of hydroplaning. The shallower grooves near the inside of the tire help to drain remaining water, forming a gradient drainage and improving safety when driving in wet conditions. It can also improve grip during cornering. When the vehicle turns, the outer tire bears greater lateral force and pressure. The deeper grooves near the outside of the tire can increase the contact area and friction with the ground, reduce sideslip, and enhance steering stability.

[0035] The depth h1 of tread groove I 11 is 24-26 mm, the depth h2 of tread groove II 12 is 26-28 mm, the depth h3 of tread groove III 13 is 28-30 mm, the depth h4 of tread groove IV 14 is 30-35 mm, and the depth h5 of tread groove V 15 is 35-50 mm.

[0036] The distance w1 between the front edge I 111 and the rear edge I 112 of tread groove I11 is 11-13 mm; the distance w2 between the front edge II 121 and the rear edge II 122 of tread groove II 12 is 17-19 mm; the distance w3 between the front edge III 131 and the rear edge III 132 of tread groove III 13 is 19-21 mm; the distance w4 between the front edge IV 141 and the rear edge IV 142 of tread groove IV 14 is 24-26 mm; the minimum parallel width w between the front edge V 151 and the rear edge V 152 of tread groove V 15 is... 51 The maximum parallel width w between the front edge V151 and the rear edge V152 of the tread groove V15 is 25-27 mm. 52 It is 30-32 mm.

[0037] The length L of the front edge I 111 of the tread groove I 1111 The length L is 17-19 mm; the length of the rear edge I112 of the tread groove I11 is... 12 The length L of the front edge II 121 of tread groove II 12 is 9-11 mm. 21 The length L of the rear edge II 122 of tread groove II 12 is 14-16 mm. 22 The length L of the front edge III 131 of tread groove III 13 is 20-22 mm. 31 The length L of the rear edge III 132 of tread groove III 13 is 10-12 mm. 32 The length L of the front edge IV 141 of the tread groove IV14 is 6-8mm. 41 The length L is 17-19mm; the rear edge of tread groove IV 142 is also 17-19mm. 42 The length L of the front edge IV 151 of the tread groove IV 15 is 19-21 mm. 51 The length L is 15-17 mm; the rear edge III 152 of the tread groove IV 15 is also 15-17 mm. 52 It is 15-17 mm.

[0038] The angle Q between the front edge I111 of the tread groove I11 and the groove wall and the normal direction of the upper end of the groove wall. I The angle is 19.5°-20.5°; the angle Q between the front edge II 121 groove wall and the normal direction of the upper end of the groove wall is 19.5°-20.5°. II The angle is 17.5-18.5°; the angle Q between the front edge III 131 groove wall and the normal direction of the upper end of the groove wall is 17.5-18.5°. III The angle is 16.5-17.5°; the angle Q between the front edge IV 141 groove wall and the upper end of the groove wall in the normal direction is 16.5-17.5°. IV The angle is 15.5°-16.5°; the angle Q between the front edge V151 of the tread groove V15 and the normal direction of the upper end of the groove wall is 15.5°-16.5°. V The angles are 14.5°-15.5°; the angles between the rear edge I 112 of tread groove I 11, the rear edge II 122 of main tread groove II 12, the rear edge III 132 of main tread groove III 13, the rear edge IV 142 of main tread groove IV 14, and the rear edge V152 of main tread groove V 15 and the normal direction of the upper end of the groove wall are all 4.5°-5.5°; the design of the camber angle difference can make the tread grooves on both sides of the tread pattern block form an asymmetrical guiding path; when the tire rolls, water or debris can be quickly discharged along the side with a larger camber angle, reducing the retention in the groove.

[0039] The sidewall edges of tread grooves I 11, II 12, III 13, IV 14, and V 15 are all smoothly connected by an arc with a radius R of 4-6 mm at their joints; the front end of end line 16 is connected to the front edge I 111 of tread groove I 11, and the rear end of end line 16 is connected to the rear edge I 112 of tread groove I 11, all by an arc with a radius R of 4-6 mm; tread grooves I 11 to IV 15 are all smoothly connected by an arc. 14 features a serrated tread pattern, with rounded transitions at the edges of the sidewalls connecting the tread grooves. The bends in the serrated tread grooves disrupt the laminar flow of water, creating localized turbulence within the grooves. This allows for more efficient water ejection and drainage direction control compared to straight grooves, directing water obliquely towards the tire side and preventing water accumulation in the center of the tread, which could lead to lateral slippage. The abrupt change in centrifugal force at the turning points of the serrated tread grooves makes it easier to eject stuck gravel, mud, or weeds, reducing groove blockage. Furthermore, the turning points of the serrated tread grooves disperse ground impact, reducing the risk of cracks at the groove roots and further optimizing drainage and mud removal performance.

[0040] The tread grooves I 11, II 12, III 13, IV 14 and V 15 are all connected to the groove walls and bottoms with a rounded corner with a radius R3 of 2-3 mm.

[0041] The included angle α between tread groove I 11 and tread groove II 12 is 53-55°; the included angle b between tread groove II 12 and tread groove III 13 is 58-60°; the included angle c between tread groove III 13 and tread groove IV 14 is 63-65°; the included angle d between tread groove IV 14 and the front edge V151 of tread groove V 15 is 67-69°; and the included angle e between tread groove IV 14 and the rear edge V152 of tread groove V 15 is 81-83°.

[0042] The perpendicular distance from end line 16 to the center line of the tread is 16-18 mm, and the distance L between adjacent tread grooves 1 along the tread circumference is 66.4-68.4 mm.

[0043] The tread pattern block 2 has a secondary tread groove 4, which is V-shaped, and the V-shaped connection is connected by a rounded corner.

[0044] The tread pattern block 2 is provided with vent holes 5. The vent holes 5 are distributed at the connection of different sections of the tread pattern groove. The diameter of the vent holes 5 is φ1.7-1.9 mm. The setting of vent holes can improve the tire exhaust performance and reduce the defects of the tread pattern corners.

[0045] Each tread block forms an acute angle with the centerline of the tread, which provides the tire with traction in the direction of travel. In addition, the longitudinally arranged tread blocks generate lateral shear resistance when the vehicle is turning. Through the mechanical interlock between the edges of the tread blocks and the ground, cornering stability is improved. Finally, the diagonal tread blocks can distribute the ground pressure more evenly when turning, preventing premature slippage in the tire shoulder area, especially optimizing the handling response of front-wheel drive vehicles.

[0046] The sidewall edges of the tire sidewall block 3 are also flared, and the larger opening end is directly connected to the end of the tire sidewall block 2. The tire sidewall block 3 is provided with a protrusion 6, which is trapezoidal. The four corners of the trapezoid are connected by rounded corners. The angle between the front edge p61 wall and the normal direction of the upper end of the wall is equal to the angle between the rear edge p'62 wall and the normal direction of the upper end of the wall, and the angle m is 15°. The tire sidewall block is a symmetrical flared design with a wider inner sidewall and a narrower outer sidewall. This design makes the protrusion present an "inner expansion structure", which can balance the rigidity of the tire sidewall. The wider inner sidewall block provides sufficient rigidity to support the weight of the vehicle body, while the narrower outer sidewall block retains a certain degree of elasticity, reducing the tire sidewall deformation during cornering, balancing support and cushioning, and reducing the feeling of bumps. The protrusion is mainly set to reduce the wear of the tire shoulder block, reduce the entry of foreign objects into the tread groove, and protect the tread block.

[0047] The angle between the front edge o 31 and the rear edge o' 32 of the sidewall tread block 3 and the radial horizontal line of the tread is 9-11°.

[0048] The minimum width W between the front edge o 31 and the rear edge o' 32 of the sidewall tread block 3 is 25-28 mm.

[0049] In summary, this utility model provides a tread groove for a mining tire and the tread pattern formed therefrom. This design improves the drainage capacity and wear resistance of the mining tire and extends its service life.

[0050] 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, any equivalent substitutions or changes made to the technical solutions and inventive concepts of this utility model 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 tread groove pattern for a mining tire, characterized in that, The tread grooves include tread groove I, tread groove II, tread groove III, tread groove IV and tread groove V connected in sequence. The two sidewall edges of tread groove I, tread groove II, tread groove III and tread groove IV are arranged in parallel. The two sidewall edges of tread groove V are generally funnel-shaped, and the smaller end of the funnel is directly connected to the end of tread groove IV. One sidewall edge of the tread groove is the front edge, and the other sidewall edge of the tread groove is the rear edge. The front end edge I of tread groove I and the rear end edge I of tread groove I are connected by an end line. The distance between the front and rear edges of the tread grooves I, II, III, and IV gradually widens. The depth of the tread grooves gradually increases from the end line to the outermost end of tread groove IV.

2. The tire tread groove as described in claim 1, characterized in that, The depth of tread groove I h1 is 24-26 mm, the depth of tread groove II h2 is 26-28 mm, the depth of tread groove III h3 is 28-30 mm, the depth of tread groove IV h4 is 30-35 mm, and the depth of tread groove V h5 is 35-50 mm. The distance w1 between the front edge I and the rear edge I of tread groove I is 11-13 mm; the distance w2 between the front edge II and the rear edge II of tread groove II is 17-19 mm; the distance w3 between the front edge III and the rear edge III of tread groove III is 19-21 mm; the distance w4 between the front edge IV and the rear edge IV of tread groove IV is 24-26 mm; the minimum parallel width w between the front edge V and the rear edge V of tread groove V is... 51 The maximum parallel width w between the front edge V and the rear edge V of the tread groove V is 25-27 mm. 52 It is 30-32 mm; The length L of the front edge I of the tread groove I 11 The length L is 17-19 mm; the length of the rear edge I of the tread groove I is... 12 It is 9-11 mm; the length L of the front edge II of tread groove II is 9-11 mm. 21 It is 14-16 mm; the length L of the rear edge II of tread groove II. 22 It is 20-22 mm; the length L of the front edge III of tread groove III is 20-22 mm. 31 It is 10-12 mm; the length L of the rear edge III of tread groove III is 10-12 mm. 32 The length L of the front edge IV of the tread groove IV is 6-8mm. 41 The length L of the rear edge IV of the tread groove IV is 17-19mm. 42 The length L of the front edge IV of the tread groove IV is 19-21 mm. 51 It is 15-17 mm; the length L of the rear edge III of tread groove IV is... 52 It is 15-17 mm.

3. The tire tread groove as described in claim 2, characterized in that, The angle Q between the front edge I of the tread groove I and the groove wall and the normal direction of the upper end of the groove wall. I The angle is 19.5°-20.5°; the angle Q between the front edge II groove wall and the upper end of the groove wall in the normal direction is 19.5°-20.5°. II The angle is 17.5-18.5°; the angle Q between the front edge III groove wall and the upper end of the groove wall in the normal direction is 17.5-18.5°. III The angle is 16.5-17.5°; the angle Q between the front edge of tread groove IV and the normal direction of the upper end of the groove wall is 16.5-17.5°. IV The angle is 15.5°-16.5°; the angle Q between the front edge V of the tread groove V and the normal direction of the upper end of the groove wall. V The angles are 14.5°-15.5°; the angles between the rear edge I of tread groove I, the rear edge II of tread main groove II, the rear edge III of tread main groove III, the rear edge IV of tread main groove IV, and the rear edge V of tread main groove V and the normal direction of the upper end of the groove wall are all 4.5°-5.5°.

4. The tire tread groove as described in claim 3, characterized in that, The edges of the sidewalls of tread grooves I, II, III, IV, and V are all connected by a smooth arc with a radius R of 4-6 mm. The front end of the end line is connected to the front end of tread groove I, and the rear end of the end line is connected to the rear end of tread groove I by a smooth arc with a radius R of 4-6 mm. The tread grooves I, II, III, IV and V, as well as the main tread groove V, are all connected to the groove walls with a rounded transition with a radius of R3 of 2-3 mm.

5. The tire tread groove as described in claim 4, characterized in that, The included angle α between tread groove I and tread groove II is 53-55°; the included angle b between tread groove II and tread groove III is 58-60°; the included angle c between tread groove III and tread groove IV is 63-65°; the included angle d between tread groove IV and the front edge V of tread groove V is 67-69°; and the included angle d between tread groove IV and the rear edge V of tread groove V is 81-83°.

6. A tread pattern for mining tires, characterized in that, The tread pattern is formed by the tread grooves as described in any one of claims 1-5. The tread grooves are located on both sides of the center of the tire crown. Each tread groove extends from the tire crown to both sides of the tire shoulder. The tread grooves on both sides are staggered after being symmetrical about the center line of the tread and do not overlap.

7. The tread pattern of a mining tire as described in claim 6, characterized in that, The perpendicular distance from the end line to the center line of the tread as described in any one of claims 1-5 is 16-18 mm, and the spacing L between adjacent tread grooves along the tread circumference is 66.4-68.4 mm.

8. The tread pattern of a mining tire as described in claim 7, characterized in that, The tread grooves form raised tread blocks, which extend toward the sidewall to form sidewall tread blocks.

9. The tread pattern of a mining tire as described in claim 8, characterized in that, The two sidewall edges of the sidewall of the tire sidewall are generally funnel-shaped, and the larger opening end is directly connected to the end of the tire sidewall.

10. A mining tire tread pattern as described in claim 9, characterized in that, The angle between the front edge o and the rear edge o' of the sidewall tread block and the radial horizontal line of the tread is 9-11°; the minimum width W between the front edge o and the rear edge o' of the sidewall tread block is 25-28 mm.

Images