Mining long-distance vehicle tire pattern and tire

Abstract

The utility model provides a mining long-distance vehicle tire pattern and a tire. The risk of falling of tire shoulder pattern blocks is reduced. The mining long-distance vehicle tire pattern comprises a tire crown pattern, the tire crown pattern comprises pattern block groups which are uniformly distributed on a tire crown along the circumferential direction of a tire, and a transverse pattern groove is formed between every two adjacent pattern block groups; each pattern block group comprises edge pattern blocks on the two sides and a middle pattern block between the edge pattern blocks on the two sides, the middle pattern blocks comprise a middle pattern block I and a middle pattern block II, and the middle pattern block I is adjacent to the edge pattern blocks.

Description

TECHNICAL FIELD

[0001] The present application relates to a mine vehicle tire, in particular to a mine long-distance vehicle tire pattern and tire. BACKGROUND

[0002] The pattern is an important part of improving vehicle performance and ensuring driving safety, and is a very key design project in tire design. How to correctly select the tire pattern form is crucial. The appropriate pattern tire form should be selected according to the vehicle purpose, the road conditions used and the vehicle speed.

[0003] In recent years, due to the consideration of mine safety, small mines are becoming less and less, prompting large mines to rapidly concentrate on large mines, which will bring more concentrated mine vehicles and greater vehicle density. The concentration of vehicles and greater density can cause the road surface to be unable to be maintained in time, and then cause the pattern to fall off and the tire to burst. SUMMARY

[0004] To solve the above problems, the present application provides a mine long-distance vehicle tire pattern and tire, which reduces the risk of edge pattern block falling off.

[0005] The purpose of the present application is achieved in the following manner: a mine long-distance vehicle tire pattern, comprising a crown pattern, the crown pattern comprising a plurality of pattern block groups uniformly distributed along the circumference of the tire, and a transverse pattern groove formed between adjacent pattern block groups; each pattern block group comprises edge pattern blocks on both sides and a middle pattern block between the edge pattern blocks; the middle pattern block comprises a middle pattern block I and a middle pattern block II, and the middle pattern block I is adjacent to the edge pattern block; the edge pattern block is at least one of the following three:

[0006] (1) when the tire is rolling, the edge of the edge pattern block contacts the ground before the corner of the same edge pattern block;

[0007] (2) in the plan view of the tire pattern, when the front edge I of the edge pattern block is close to the corner I of the middle pattern block and is located in front of the front edge I of the edge pattern block, and at this time the corner A formed by the intersection of the front edge I of the edge pattern block and the outermost edge of the crown is located behind the corner I, the extension line of the front edge II intersects the front edge I, and the intersection point is not tangent, the intersection point is rounded, and the corner I is located behind the extension line of the front edge II;

[0008] (3) the crown pattern is centrally symmetrical, the front edge of the edge pattern block on the left side or the right side contacts the ground before the corner of the same edge pattern block; when the edge pattern block just contacts the ground, the edge contacts the ground due to the corner, which avoids the bite and falling off of the corner of the edge pattern block;

[0009] At the same time, in the plan view of the tire pattern, the rear edge I of the edge block is located behind the corner I of the middle block, and the corner A formed by the intersection of the rear edge I of the edge block and the outermost edge of the crown is located in front of the corner I, the extension line of the rear edge II intersects the rear edge I, and the intersection point is not tangent, the intersection point is rounded, and the corner I is located in front of the extension line of the rear edge II.

[0010] When the tire rolls, the edge of the edge block contacts the ground before the corner of the same edge block; the edge of the edge block forms a transverse groove, and the edge of the edge block has an outward convex part away from the center of the edge block, and the outward convex part of the edge in front of the edge block has a point located in front of the corner of the edge block at both ends, or the outward convex part of the edge in front of the edge block has a point located behind the corner of the edge block at both ends.

[0011] The crown pattern is centrally symmetric, and the front edge of the left or right edge block contacts the ground before the corner of the same edge block; for the same block group, the front edge of the edge block is tangent to the front edge of the adjacent middle block when forming a transverse groove, and the front edge of the edge block is located in front of the straight line formed by the corners at both ends of the front edge of the right edge block.

[0012] For the same block group, the front edge of the right edge block is tangent to the front edge of the adjacent middle block when forming a transverse groove, and the front edge of the right edge block is located in front of the straight line formed by the corners at both ends of the front edge of the right edge block; the rear edge of the right edge block is an arc edge I, the rear edge II of the adjacent middle block is a straight edge, the extension line of the straight edge rear edge II to the arc edge I intersects the arc edge I, and the intersection point is not tangent;

[0013] Since the crown pattern is centrally symmetric, the front edge of the left edge block is tangent to the rear edge of the adjacent middle block when forming a transverse groove; the front edge of the left edge block is an arc edge I, and the front edge II of the adjacent middle block is a straight edge; the extension line of the straight edge rear edge II to the arc edge I intersects the arc edge I, and the intersection point is not tangent;

[0014] The edge of the edge block forming the tangent design of the transverse groove is an arc edge II, compared to the straight line connecting between the two ends of the arc edge II, the arc edge II makes the edge block convex outward, and the arc edge II is located in front of the corners at both ends of the front edge of the right edge block, namely the corner III and the corner B.

[0015] The corner I of the edge block is a rounded corner design;

[0016] The arc edge I of the edge pattern block makes the edge pattern block concave;

[0017] The edge pattern block is cut on the stress concentrated corner upper end of the middle pattern block adjacent to the edge pattern block.

[0018] In the same pattern block group, the edge pattern block and the adjacent middle pattern block are connected by a third reinforcing rib, the third reinforcing rib at least includes a third reinforcing rib I, a third reinforcing rib II and a third reinforcing rib III, the third reinforcing rib I is located between the third reinforcing rib II and the third reinforcing rib III, and the thickness of the third reinforcing rib I is greater than the thickness of the third reinforcing rib II and the third reinforcing rib III;

[0019] Two middle pattern blocks II are arranged between the two middle pattern blocks I, the outer periphery of one middle pattern block II is adjacent to the two middle pattern blocks I, one middle pattern block II and one transverse pattern groove, the two middle pattern blocks II are connected by a first reinforcing rib, the middle pattern block II and one middle pattern block I are connected by a second reinforcing rib, and the middle pattern block II and the other middle pattern block I are connected by a fourth reinforcing rib.

[0020] The area ratio between the edge pattern block and the middle pattern block I is in the range of 105%-120%.

[0021] The depth of the first reinforcing rib is 1 / 5-1 / 3 of the depth of the transverse pattern groove, the depth of the second reinforcing rib is 2 / 5-3 / 5 of the depth of the transverse pattern groove, the depth of the fourth reinforcing rib is 2 / 5-3 / 5 of the depth of the transverse pattern groove, the depth of the third reinforcing rib I is greater than the depth of the first reinforcing rib and less than the depth of the second reinforcing rib, the depth of the third reinforcing rib II is 2 / 3-4 / 5 of the depth of the transverse pattern groove, and the depth of the third reinforcing rib II is greater than the depth of the second reinforcing rib.

[0022] The transverse pattern groove includes a slant groove in the middle, and two arc grooves respectively connected with the end of the slant groove, and the transverse pattern groove is centrally symmetrical.

[0023] The depth of the second reinforcing rib is the same as the depth of the fourth reinforcing rib.

[0024] The upper end of the two side walls of the slant groove is a straight line edge II and a straight line edge III forming an included angle with the transverse direction of the tire, the upper end of one side wall of the arc groove is a straight line edge IV connected with the straight line edge III and an arc line edge II connected with the straight line edge IV, the straight line edge IV and the arc line edge II are tangent to each other, and the upper end of the other side wall is a straight line edge I connected with the end of the straight line edge II and an arc line edge I connected with the end of the straight line edge I; the straight line edge II and the straight line edge I form an obtuse angle a, and the straight line edge IV and the straight line edge III form an obtuse angle b; the obtuse angle a is one angle of the middle pattern block II, and the circumferential angle of the obtuse angle b is one angle of the middle pattern block I.

[0025] The middle part of the transverse pattern groove is provided with a circumferential reinforcing rib, and the transverse pattern groove extends to the connection position of the shoulder and the side; from the transverse center of the transverse pattern groove to the direction of the two shoulders, the distance between the two sidewalls of the transverse pattern groove first remains unchanged, and then increases and then decreases, and the position where the distance begins to decrease is from the most edge of the crown; from the end of the circumferential reinforcing rib to the end of the corresponding transverse pattern groove, the depth of the transverse pattern groove first increases and then decreases.

[0026] A tire, the tire pattern comprising the tire pattern described above.

[0027] The present application provides a mine long haul vehicle tire pattern and tire, which reduces the risk of block falling of the edge pattern block.

[0028] In the long haul working condition, the pattern heat generation is avoided to be high, so as to cause early damage. The pattern long haul working condition applicability is increased, and the pattern block ground pressure is optimized, and stress concentration is reduced.

[0029] A pattern for improving the long haul working condition life of a tire is provided, which has a higher mileage life. The pattern rigidity is increased, the pattern is optimized, the impact resistance is improved, and the uniform wear, stability and puncture resistance during driving are enhanced.

[0030] In order to enable the tire to be used in long haul, high load and relatively poor road conditions, and at the same time have a higher mileage life, the large pattern blocks are cut into multiple blocks, the intercept is increased, and the saturation is increased, so as to achieve the purpose of pattern block fragmentation without losing rigidity; the ground smoothness is optimized to 10%, and the value can be as high as 200%, the pattern block ground pressure is dispersed, stress release is beneficial, and the possibility of block falling and tire burst caused by impact during driving is reduced; in order to avoid pattern groove cracking, convex reinforcing ribs are designed between the pattern blocks; the non-tangent design and cutting design are adopted, the stress at the corner of the pattern block is reduced, and the risk of block falling on the poor road is reduced; the above designs are comprehensively used, which is beneficial to improve the service life of the wide-body dump truck tire in long haul and harsh environment. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a perspective view of the pattern of the present application;

[0032] Figure 2 It is a plan view of the pattern of the present application;

[0033] Figure 3 It is a schematic view of the third convex reinforcing rib;

[0034] Figure 4 It is a style change diagram;

[0035] Figure 5 It is a non-tangent pressure diagram;

[0036] Figure 6Tangential pressure diagram;

[0037] Figure 7 This is a cross-sectional view of the cutting process;

[0038] Figure 8 This is a diagram of non-cutting pressure.

[0039] Figure 9 This is a diagram of cutting pressure.

[0040] Figure 10 A diagram showing the smoothness of the pattern;

[0041] Figure 11 A schematic diagram of the non-tangent structure of the patterned blocks on the left side.

[0042] Among them, patterned block group 1, edge patterned block 2, middle patterned block I 3, one middle patterned block II 4, first reinforcing rib 5, second reinforcing rib 6, third reinforcing rib 7, third reinforcing rib I 71, third reinforcing rib II 72, third reinforcing rib III 73, cutting block 8, first cutting block 81, second cutting block 82, transverse patterned groove 9, oblique groove 90, arc groove 91, arc edge I 92, arc edge II 93, straight edge IV 94, straight edge I 96, straight edge II 97, straight edge III 98, edge III 95, edge IV 99; centerline surface 10, non-tangent 111, edge I 11, edge II 112, circumferential reinforcing rib 12; fourth reinforcing rib 13, angle I 14. Detailed Implementation

[0043] The present invention will now be described in detail with reference to specific embodiments. It should be noted that these embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments based on the above description of the present invention.

[0044] In this application description, the tire's rolling direction is forward, and the direction of departure is backward.

[0045] like Figures 1-11 As shown, a tire tread pattern for a long-distance mining vehicle includes a crown tread pattern, which comprises tread block groups 1 evenly distributed along the circumference of the tire crown, with transverse tread grooves 9 formed between adjacent tread block groups 1; each tread block group 1 includes edge tread blocks 2 on both sides and a middle tread block between the edge tread blocks on both sides, with at least one middle tread block; the edge tread blocks 2 are at least one of the following three types:

[0046] (i) The tread pattern is symmetrical. The front edge of the tread block 2 on the right side of the tread pattern contacts the ground before the corner of the same tread block 2. When the tread block 2 just contacts the ground, the front edge arc II93 contacts the ground first because the corner of the tread block contacts the ground first, thus avoiding the corner of the tread block being damaged and falling off.

[0047] Meanwhile, in the plan view of the tire pattern, when the rear edge I of the edge block 2 is close to the corner 111 of the middle block and the corner A formed by the intersection of the rear edge I—curve edge 192 of the edge block 2 and the outermost edge of the crown is located in front of the corner 111, the extension line of the rear edge II in the direction of the rear edge I—curve edge 192 intersects the rear edge I, i.e., the extension line of the rear edge II intersects the rear edge I, and the intersection point is not tangent 111, and the corner 111 is located in front of the extension line of the rear edge II. Due to the central symmetry of the crown pattern, when the corner 111 of the middle block of the edge block 2 on the other side of the crown pattern, i.e., the left side of the crown pattern, is located in front of the front edge I—curve edge 192 of the edge block 2, the corner A formed by the intersection of the front edge I—curve edge 192 of the edge block 2 and the outermost edge of the crown is located behind the corner 111, the extension line of the front edge II in the direction of the front edge I intersects the front edge I—curve edge 192, i.e., the extension line of the front edge II intersects the front edge I—curve edge 192, and the intersection point is not tangent 111, and the corner 111 is located behind the extension line of the front edge II, as shown in FIG. 2, wherein the straight line edge 196 includes the front edge II of the adjacent middle block and its extension line, and thus the corner 111 is located behind the straight line edge 196. Figure 11

[0048] The outermost edge of the crown is Figure 2 the dashed line C-C.

[0049] In this way, when the tire rolls in the circumferential direction, the impact of the edge block 2 on the corner 111 when it first contacts the ground is reduced, and the sensitive area is prevented from being bitten and falling off. Under the same load and air pressure, only the tangent 111 and the corner 111 are different, and other factors are reduced, and through simulation analysis and comparison, the design can reduce the pressure at the tangent by 42.8%, as shown in FIG. 3. Figure 5 Figure 6 .

[0050] Therefore, when the entire tire rolls, the edge block 2 can avoid biting and falling off the corner of the edge block when it first contacts the ground.

[0051] ​​The specific structure of "the edge of the edge block 2 contacts the ground before the corner of the same edge block 2 when the tire is rolling" can be that the edge of the edge block 2 forming the lateral groove 9 is convex outward in the direction away from the center of the edge block 2, and the convex portion of the edge of the edge block 2 is located in front of the corner of the edge block 2 at the both ends of the edge.

[0052] For the front edge of the right edge block 2 to contact the ground before the corner of the same edge block 2: for the same block group 1, the front edge of the edge block 2 and the front edge of the adjacent middle block are designed to be tangent when forming the lateral groove, and the front edge of the edge block 2 is located in front of the straight line formed by the corners at both ends of the front edge of the right edge block 2.

[0053] As shown in Figure 2 , for the same block group 1, the arc edge II 93 of the front edge of the right edge block 2 and the front edge of the adjacent middle block are designed to be tangent when forming the lateral groove, and the arc edge II 93 is located in front of the straight line formed by the corners B and the corners III 95 at both ends of the front edge of the right edge block 2. The corner B is the corner formed by the intersection of the arc edge II 93 and the most edge of the crown (the dashed line C-C). The rear edge of the right edge block 2 is the arc edge I 92, and the rear edge II of the front edge of the adjacent middle block is a straight edge. The extension of the straight edge rear edge II to the arc edge I 92 intersects the arc edge I 92, and the intersection point is not tangent 111, and the corner I 111 is located in front of the extension of the straight edge rear edge II. Figure 2 In the Figure 2 , the straight edge I 196 includes the front edge II of the adjacent middle block and its extension, so the corner I 111 is located in front of the straight edge I 196.

[0054] Due to the center symmetry, the rear edge of the left edge block 2 - the arc edge II 93 and the rear edge of the adjacent middle block are designed to be tangent when forming the lateral groove. The front edge of the left edge block 2 is the arc edge I 92, and the front edge II of the adjacent middle block is a straight edge. As shown in Figure 11 , the extension of the straight edge front edge II to the arc edge I 92 intersects the arc edge I 92, and the intersection point is not tangent 111, Figure 2 In the

[0055] Therefore, the edge of the edge block 2 of the transverse groove tangent design is an arc edge Ⅱ93, compared with the straight line connecting between the two ends of the arc edge Ⅱ93, the arc edge Ⅱ93 makes the edge block 2 protrude outward, and the arc edge Ⅱ93 is located in front of the two end corners of the front edge of the edge block 2, that is, the corner Ⅲ95 and the corner B; preferably, the center of the arc edge Ⅱ93 is located on the side where the crown pattern is located. Reduce the risk of crown burst caused by the first contact of the shoulder corner of the edge block 2 during tire driving.

[0056] The edge of the edge block 2 is tangent when forming the transverse groove, and compared with the straight line connecting between the two ends of the edge of the tangent design, the edge of the tangent design makes the edge block protrude outward, which helps to weaken the stress at the inflection point; through finite element simulation, the stress concentration point is cut to reduce the risk of edge block corner drop; the overall pattern is designed for smooth ground contact, which is beneficial to uniform wear of the tread and avoids uneven wear of the tread; the edge of the edge block 2 of the transverse groove tangent design is an arc edge Ⅱ93, compared with the straight line connecting between the two ends of the arc edge Ⅱ93, the arc edge Ⅱ93 makes the edge block 2 protrude outward, and the arc edge Ⅱ93 is located in front of the two end corners of the front edge of the edge block 2, that is, the corner Ⅲ95 and the corner B, which reduces the impact on the tire during pattern driving and avoids drop and burst.

[0057] The corner Ⅰ11 of the edge block 2 is a rounded corner design, which has the advantage of preventing drop.

[0058] In the plan view, compared with the straight line connecting between the two ends (intersection A and corner Ⅰ11) of the arc edge Ⅰ92, the arc edge Ⅰ of the edge block 2 makes the edge block 2 concave.

[0059] The upper corners of the stress concentration of the edge block 2 and the adjacent intermediate block of the edge block 2 are cut to disperse the maximum stress to both sides of the corners.

[0060] In the same pattern block group 1, the edge block 2 and the adjacent intermediate block are connected by the third reinforcing rib 7, the third reinforcing rib at least includes the third reinforcing rib Ⅰ71, the third reinforcing rib Ⅱ72 and the third reinforcing rib Ⅲ73, and the third reinforcing rib Ⅰ71 is located between the third reinforcing rib Ⅱ72 and the third reinforcing rib Ⅲ73, and the thickness of the third reinforcing rib Ⅰ71 is greater than that of the third reinforcing rib Ⅱ72 and the third reinforcing rib Ⅲ73.

[0061] Preferably, the third reinforcing rib 7 is sequentially connected by the third reinforcing rib Ⅱ72, the third reinforcing rib Ⅰ71 and the third reinforcing rib Ⅲ73, the thickness of the third reinforcing rib Ⅰ71 is greater than that of the third reinforcing rib Ⅱ72 and the third reinforcing rib Ⅲ73, and the thickness of the third reinforcing rib Ⅱ72 and the third reinforcing rib Ⅲ73 is the same.

[0062] The purpose is to increase the rigidity between the edge pattern block 2 and the adjacent middle pattern block, reduce the risk of block falling of the edge pattern block 2, avoid the poor heat dissipation caused by connecting the edge pattern block 2 and the adjacent middle pattern block through the thickened reinforcing ribs all the time, and avoid the weak rigidity of the pattern block and the increased risk of block falling caused by connecting the edge pattern block 2 and the adjacent middle pattern block through the thinned reinforcing ribs all the time.

[0063] In the same pattern block group 1, the middle pattern blocks between the edge pattern blocks 2 on both sides include middle pattern block I 3 and middle pattern block II 4, the middle pattern block I 3 is adjacent to the edge pattern block 2, two middle pattern blocks II 4 are arranged between the two middle pattern blocks I 3, the outer periphery of one middle pattern block II 4 is adjacent to the two middle pattern blocks I 3, one middle pattern block II 4 and the transverse pattern groove 9, the two middle pattern blocks II 4 are connected through the first reinforcing rib 5, the middle pattern block II 4 is connected with one middle pattern block I 3 through the second reinforcing rib 6, and is connected with the other middle pattern block I 3 through the fourth reinforcing rib 13.

[0064] In the same pattern block group, the two middle pattern blocks I 3, the two middle pattern blocks II 4 and the two edge pattern blocks 2 are connected through the reinforcing ribs in the application, the existing crown large pattern block is cut into multiple blocks, the saturation is increased while the intercept is increased, the purpose of breaking the pattern block without losing rigidity is achieved, the ground pressure of the pattern block is dispersed, the stress is released, and the possibility of block falling and tire explosion caused by impact during driving is reduced.

[0065] The depth of the first reinforcing rib 5 is 1 / 5-1 / 3 of the depth of the transverse pattern groove 9, the depth of the second reinforcing rib 6 is 2 / 5-3 / 5 of the depth of the transverse pattern groove 9, and the depth of the fourth reinforcing rib 13 is 2 / 5-3 / 5 of the depth of the transverse pattern groove 9; the depth of the third reinforcing rib I 71 is greater than the depth of the first reinforcing rib 5 and less than the depth of the second reinforcing rib 6, the depth of the third reinforcing rib II 72 is 2 / 3-4 / 5 of the depth of the transverse pattern groove 9, and the depth of the third reinforcing rib II 72 is greater than the depth of the second reinforcing rib 6.

[0066] Here, the depth of the transverse pattern groove 9 is the depth of the transverse pattern groove 9 at a distance of half the distance from the crown edge to the crown center line / tread center line (not shown in the figure, but known in the prior art) of the crown pattern. Figure 2

[0067] The depth of the second reinforcing rib 6 and the fourth reinforcing rib 13 is the same.

[0068] ​Apart from the lateral groove 9 and the reinforcement rib groove wall angle changes, with the increase of the degree of wear, the block group 1 area ratio also increases, the block area is large, the groove area is small, the risk of groove injury is reduced, and therefore the risk of lateral groove 9 injury is reduced. With the gradual shallowing of the reinforcement rib depth on the block group 1 to all the reinforcement ribs disappearing, the ground contact area is 68%-85%, and before wear, the ground contact area is 68%-73%. With the gradual shallowing of the reinforcement rib depth on the block group 1 to all the reinforcement ribs disappearing, the tread pattern can present different styles Figure 4 .

[0069] The area ratio between the edge block 2 and the middle block I 3 is 105%-120%, which ensures the rigidity of the shoulder and the ground contact and prevents the block from being bitten off. Adjusting the ratio of the two, adjusting the tread pattern, achieving the purpose of block fragmentation and rigidity, realizing uniform stress of the tire, high mileage, and fast heat dissipation.

[0070] The lateral groove 9 includes a central inclined groove 90 and two arc-shaped grooves 91 connected to the ends of the inclined groove 90, and the lateral groove 9 is centrally symmetrical.

[0071] The upper end of the two side walls of the inclined groove 90 is a straight line edge II 97 and a straight line edge III 98 forming an angle with the lateral direction of the tire; one side wall of the arc-shaped groove 91 has a straight line edge IV 94 connected to the straight line edge III 98 and an arc line edge II 93 connected to the straight line edge IV 94, and the straight line edge IV 94 and the arc line edge II 93 are tangent to each other. The upper end of the other side wall is a straight line edge I 96 connected to the end of the straight line edge II 97 and an arc line edge I 92 connected to the end of the straight line edge I 96. The straight line edge II 97 and the straight line edge I 96 form an obtuse angle a, and the straight line edge IV 94 and the straight line edge III 98 form an obtuse angle b. The obtuse angle a is an angle of the middle block II 4, and the mutual angle of the obtuse angle b is an angle of the middle block I 3.

[0072] The corners of the stress concentration points in the tread pattern are cut, and the maximum stress at the cutting point is dispersed to both sides of the corner.

[0073] In the structure of the present application, the arc line edge II 93 of the edge block 2 and the side close to the middle block I 3 form an angle which is chamfered, and the chamfered angle is angle I 14. Angle I 14 is a stress concentration point, the upper end of angle I 14 is cut to form a first cut block 81, the cutting angle α is 15°-45°, and the cutting diagram is as shown in Figure 7The side edge of the intermediate block 13 and the intermediate block 14 forming the lateral groove 9 is a straight edge 96, and the two corners of the adjacent intermediate block 13 and the intermediate block 14 are a corner 95 of the intermediate block 13 and a corner 99 of the intermediate block 14, respectively. In the tire running direction, the corner 95 is behind the corner 99, and the corner 95 is a stress concentration point. A second cutting block 82 is designed on the upper end of the corner 95, and the cutting angle a is 15°-45°. The cutting diagram is as shown in Figure 7 The maximum stress at this point is dispersed to the two sides of the corner by cutting. Through the design of the first cutting block 81 and the second cutting block 82, the simulation analysis can reduce the pressure at this corner by about 10.2%, as shown in Figure 8 Figure 9

[0074] A circumferential reinforcing rib 12 is arranged in the middle of the lateral groove 9, and the lateral groove 9 extends to the connection between the shoulder and the side. From the transverse center of the lateral groove 9 to the direction of the two shoulders, the distance between the two side walls of the lateral groove 9 first remains unchanged, and then increases and then decreases. The position where the distance begins to decrease is from the most edge of the crown. From the end of the circumferential reinforcing rib 12 to the end of the corresponding lateral groove 9, the depth of the lateral groove 9 first increases and then decreases. Through the design of the width of the lateral groove, the tire can ensure the climbing ability while facilitating the tire to discharge stones, water, mud, and heat.

[0075] In the tire running direction, the corner 95 on the left side or the right side of the crown pattern is behind the corner 99, and the second cutting block 82 is designed on the upper end of the corner 95. The crown pattern is centrally symmetric.

[0076] (2) When the tire rolls, the edge of the edge block 2 contacts the ground before the corner of the same edge block 2.

[0077] When the edge block 2 contacts the ground, the edge contacts the ground before the corner, which can avoid the bite and block of the edge block corner.

[0078] (3) In the plan view of the tire pattern, when the front edge I of the edge block 2 is close to the corner I 11 of the intermediate block and is located in front of the front edge I of the edge block 2, the intersection A of the front edge I of the edge block 2 and the most edge of the crown is located behind the corner I 11. The extension line of the front edge II intersects the front edge I, and the intersection point is not tangent 111. The corner I 11 is located behind the extension line of the front edge II.

[0079] This design can avoid or reduce the risk of bite and block of the corner I 11 when the edge block 2 contacts the ground. ​​

[0080] According to the scheme (one), it is obvious that the scheme (two) or (three) can also avoid or reduce the risk of the edge block corner bite and the edge block corner falling off caused by the impact of the edge block corner when the tire rolls in the tire circumferential direction.

[0081] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. It should be noted that, for those skilled in the art and any person skilled in the art, under the premise of not departing from the overall concept of the present application, according to the technical scheme and the inventive concept of the present application, some equivalent replacements or changes, and several changes and improvements made, these should also be considered as the protection scope of the present application.

Claims

1. A long haul mining vehicle tire pattern, characterized by: The application relates to a tire crown pattern, which comprises a plurality of pattern block groups (1) arranged along the tire circumferential direction, and transverse grooves (9) formed between adjacent pattern block groups (1); each pattern block group (1) comprises two side pattern blocks (2) and a middle pattern block between the two side pattern blocks; the middle pattern block comprises a middle pattern block I (3) and a middle pattern block II (4), and the middle pattern block I (3) is adjacent to the side pattern block (2); the side pattern block (2) is at least one of the following three types: (1) when the tire rolls, the side of the side pattern block (2) contacts the ground earlier than the corner of the same side pattern block (2); (2) in the plan view of the tire pattern, when the front side I of the side pattern block (2) is close to the corner I (11) of the middle pattern block and is located in front of the front side I of the side pattern block (2), and at this time, the corner A formed by the intersection of the front side I of the side pattern block (2) and the most side of the tire crown is located behind the corner I (11), the extension line of the front side II intersects with the front side I, and the intersection point is not tangent (111), the intersection point is rounded, and the corner I (11) is located behind the extension line of the front side II; (3) the tire crown pattern is centrally symmetrical, the front side of the left or right side pattern block (2) contacts the ground earlier than the corner of the same side pattern block (2); when the side pattern block (2) just contacts the ground, the side contacts the ground earlier than the corner, thereby avoiding the bite and block of the corner of the side pattern block; meanwhile, in the plan view of the tire pattern, when the rear side I of the side pattern block (2) is close to the corner I (11) of the middle pattern block and is located behind the rear side I of the side pattern block (2), and at this time, the corner A formed by the intersection of the rear side I of the side pattern block (2) and the most side of the tire crown is located in front of the corner I (11), the extension line of the rear side II intersects with the rear side I, and the intersection point is not tangent (111), the intersection point is rounded, and the corner I (11) is located in front of the extension line of the rear side II.

2. The long haul mine vehicle tire of claim 1, wherein: When the tire rolls, the side of the side pattern block (2) contacts the ground earlier than the corner of the same side pattern block (2); the side of the side pattern block (2) which forms the transverse groove (9) has an outward protruding part in the direction away from the center of the side pattern block (2) compared with the corners of the side pattern blocks (2) at both ends of the side; and the outward protruding part in front of the side pattern block (2) has a point located in front of the corners of the side pattern blocks (2) at both ends of the side, or the outward protruding part of the side of the side pattern block (2) has a point located behind the corners of the side pattern blocks (2) at both ends of the side.

3. The long haul mine vehicle tire of claim 2, wherein: The tire crown pattern is centrally symmetrical, and the front side of the left or right side pattern block (2) contacts the ground earlier than the corner of the same side pattern block (2); for the same pattern block group (1), the front side of the side pattern block (2) and the front side of the adjacent middle pattern block are tangent when forming the transverse groove, and the front side of the side pattern block (2) is located in front of the straight line formed by the corners at both ends of the front side of the right side pattern block (2).

4. The long haul mine service vehicle tire of claim 3, wherein: For the same pattern block group (1), the front edge of the right side edge pattern block (2) is tangent to the front edge of the adjacent middle pattern block when forming the transverse pattern groove, and the front edge of the right side edge pattern block (2) is located in front of the straight line formed by the two end corners of the front edge of the right side edge pattern block (2); The rear edge of the right side edge pattern block (2) is an arc edge I (92), and the rear edge II of the adjacent middle pattern block is a straight edge. The extension line of the rear edge II of the straight edge to the arc edge I (92) intersects the arc edge I (92), and the intersection point is not tangent (111); Since the crown pattern is centrally symmetric, the front edge of the left side edge pattern block (2) is tangent to the rear edge of the adjacent middle pattern block when forming the transverse pattern groove; the front edge of the left side edge pattern block (2) is an arc edge I (92), and the front edge II of the adjacent middle pattern block is a straight edge; the extension line of the rear edge II of the straight edge to the arc edge I (92) intersects the arc edge I (92), and the intersection point is not tangent (111); The edge of the edge pattern block (2) which is tangent when forming the transverse pattern groove is an arc edge II (93), which makes the edge pattern block (2) convex compared to the straight line connecting the two ends of the arc edge II (93), and the arc edge II (93) is located in front of the two end corners of the front edge of the right side edge pattern block (2), i.e., corner III (95) and corner B.

5. The long haul mining vehicle tire of claim 4, wherein: The corner I (11) of the edge pattern block (2) is designed as a rounded corner; The arc edge I of the edge pattern block (2) makes the edge pattern block (2) concave; The upper end of the stress concentration corner of the edge pattern block (2) and the adjacent middle pattern block of the edge pattern block (2) is cut.

6. The long haul mining vehicle tire of claim 1, wherein: In the same pattern block group (1), the edge pattern block (2) and the adjacent middle pattern block are connected by a third reinforcing rib (7), the third reinforcing rib (7) at least includes a third reinforcing rib I (71), a third reinforcing rib II (72), and a third reinforcing rib III (73), the third reinforcing rib I (71) is located between the third reinforcing rib II (72) and the third reinforcing rib III (73), and the thickness of the third reinforcing rib I (71) is greater than the thickness of the third reinforcing rib II (72) and the third reinforcing rib III (73); Two middle pattern blocks II (4) are arranged between the two middle pattern blocks I (3), and the outer periphery of each middle pattern block II (4) is adjacent to a middle pattern block I (3), a middle pattern block II (4), and a transverse pattern groove (9). The two middle pattern blocks II (4) are connected by a first reinforcing rib (5), the middle pattern block II (4) and a middle pattern block I (3) are connected by a second reinforcing rib (6), and the middle pattern block II (4) and another middle pattern block I (3) are connected by a fourth reinforcing rib (13); The area ratio of the edge pattern block (2) and the middle pattern block I (3) is in the range of 105%-120%.

7. The long haul mining vehicle tire of claim 6, wherein: The depth of the first reinforcing rib (5) is 1 / 5-1 / 3 of the depth of the transverse groove (9), the depth of the second reinforcing rib (6) is 2 / 5-3 / 5 of the depth of the transverse groove (9), and the depth of the fourth reinforcing rib (13) is 2 / 5-3 / 5 of the depth of the transverse groove (9); the depth of the third reinforcing rib I (71) is greater than the depth of the first reinforcing rib (5) and less than the depth of the second reinforcing rib (6), the depth of the third reinforcing rib II (72) is 2 / 3-4 / 5 of the depth of the transverse groove (9), and the depth of the third reinforcing rib II (72) is greater than the depth of the second reinforcing rib (6); The transverse groove (9) comprises a slant groove (90) in the middle and arc grooves (91) connected to the ends of the slant groove (90) on both sides, and the transverse groove (9) is centrally symmetrical.

8. The long haul mine vehicle tire of claim 7, wherein: The depth of the second reinforcing rib (6) is the same as that of the fourth reinforcing rib (13).

9. The long haul mining vehicle tire of claim 7, wherein: The upper end of the two side walls of the slant groove (90) is a straight line edge II (97) and a straight line edge III (98) forming an included angle with the transverse direction of the tire; the upper end of one side wall of the arc groove (91) is a straight line edge IV (94) connected to the straight line edge III (98) and an arc line edge II (93) connected to the straight line edge IV (94), the straight line edge IV (94) and the arc line edge II (93) are tangent to each other, and the upper end of the other side wall is a straight line edge I (96) connected to the end of the straight line edge II (97) and an arc line edge I (92) connected to the end of the straight line edge I (96); the straight line edge II (97) and the straight line edge I (96) form an obtuse angle a, and the straight line edge IV (94) and the straight line edge III (98) form an obtuse angle b; the obtuse angle a is one angle of the middle pattern block II (4), and the circumferential angle of the obtuse angle b is one angle of the middle pattern block I (3); The transverse groove (9) is provided with a circumferential reinforcing rib (12) in the middle, the transverse groove (9) extends to the connection between the shoulder and the side of the tire, from the transverse center of the transverse groove (9) to the direction of the two shoulders, the distance between the two side walls of the transverse groove (9) remains unchanged first, then increases and then decreases, and the part where it starts to decrease is from the outermost part of the crown; from the end of the circumferential reinforcing rib (12) to the end of the corresponding transverse groove (9), the depth of the transverse groove (9) first increases and then decreases.

10. A tire characterized by: The tire pattern comprises the tire pattern of any one of claims 1-9.

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