Engineering machinery tire pattern suitable for high load

Abstract

An off-the-road tire pattern suitable for high loads comprises a tire tread, pattern blocks are arranged on the tire tread in the width direction of a tire, the pattern blocks are evenly distributed on the tire tread at intervals in the circumferential direction of the tire, and transverse pattern grooves are formed between every two adjacent pattern blocks; the pattern blocks comprise first pattern blocks and second pattern blocks; the transverse pattern grooves comprise first transverse pattern grooves and second transverse pattern grooves; the bending directions of the first transverse pattern grooves and the second transverse pattern grooves are opposite, one transverse pattern groove is bent forwards, the other transverse pattern groove is bent backwards, and the first transverse pattern grooves and the second transverse pattern grooves are in central symmetry relative to a certain point on a center line; by limiting related parameters, the contact area between the tire and the ground is basically kept consistent in the rolling process of the tire, so that an engineering vehicle cannot jolt up and down, resonance with parts of the engineering vehicle is avoided, meanwhile, uniform stress of a grounding part, uniform abrasion of a tire tread and eccentric abrasion of the tire tread are facilitated, and the service life of the tire is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire patterns, and in particular relates to a tire pattern suitable for high-load engineering machinery. Background Art

[0002] There are many types of tire patterns, and their design is based on the suitability for different uses and road conditions. Tire patterns play a very important role in the entire driving life. A well-designed pattern can not only save fuel, but also reduce the noise generated by the car during driving, while also enhancing the driving force, braking force and traction performance of the car on various harsh and slippery roads, thereby increasing the safety of car driving.

[0003] With the continuous changes in the demand of the mining market, users of engineering vehicles are becoming increasingly demanding on the performance and riding comfort of engineering machinery tires. On the one hand, they require that engineering machinery vehicles be comfortable during driving, and that steering wheels and other engineering vehicle parts have no obvious vibrations, so as to avoid resonance and deformation between vehicle parts and tires, which would affect the life safety of the driver; at the same time, they require that under harsh road conditions and high vehicle loads, the tires have less initial damage, are resistant to cutting, and have a long service life, so as to avoid problems such as rapid wear of tread blocks, block loss, and severe tread cutting, which would cause short tire service life, require frequent tire replacement, and reduce vehicle work efficiency.

[0004] To this end, the technical problems to be solved by the utility model are: having high load and cut resistance without losing traction, being able to work under harsh working conditions, being comfortable during driving, reducing the possibility of resonance with engineering vehicle parts, and increasing tire service life. Utility Model Content

[0005] In order to solve the technical problems of having high load and cutting resistance without losing traction, being able to work under harsh working conditions, being comfortable during driving, reducing the possibility of resonance with engineering vehicle parts, and increasing the service life of the tire, the utility model provides a tire pattern suitable for high-load engineering machinery.

[0006] The specific plan is as follows:

[0007] A tire pattern suitable for high-load engineering machinery, comprising a tire tread, wherein pattern blocks are arranged on the tire tread along the tire width direction, the pattern blocks are evenly spaced and distributed on the tire tread along the tire circumferential direction, and transverse pattern grooves are provided between adjacent pattern blocks;

[0008] The pattern blocks include first pattern blocks evenly spaced on the left side of the center line, and second pattern blocks evenly spaced on the right side of the center line;

[0009] The transverse grooves include first transverse grooves evenly spaced on the left side of the center line, and second transverse grooves evenly spaced on the right side of the center line;

[0010] The first transverse groove and the second transverse groove have opposite bending directions, one bending forward and the other bending backward, and are centrally symmetrical with respect to a certain point on the center line.

[0011] The bending angle β of the transverse groove is set to be an obtuse angle.

[0012] The first pattern block and the second pattern block extend from the tire tread to the tire shoulder and are centrally symmetrical with respect to a certain point on the center line.

[0013] The first pattern block and the second pattern block are connected to each other at the center line; and adjacent pattern blocks are connected to each other at the center line.

[0014] The angle between the upper edge of the first pattern block and the width direction of the tire tread is a first offset angle α, and the angle between the lower edge of the first pattern block and the width direction of the tire tread is a second offset angle γ. The angle ranges of the first offset angle α and the second offset angle γ are both 0°-10°.

[0015] The position of the transverse groove close to the center of the tire tread is end point A, and the ratio of the distance from end point A to the tire shoulder to the tire width is 0.4-0.5.

[0016] The first transverse groove and the second transverse groove are independent of each other at the center line and are not connected to each other, and their widths gradually increase from the center line to the tire shoulder.

[0017] A reinforcing rib is arranged at the bottom of the transverse groove on one side close to the center line of the tire tread.

[0018] The thickness of the reinforcing rib is 1 / 2-3 / 5 of the thickness of the pattern block, and the ratio of the distance from the reinforcing rib to the center line to the distance from the reinforcing rib to the tire shoulder is 0.4-0.5.

[0019] The beneficial effects of the utility model are:

[0020] The utility model limits the parameters of the bending angle β, the first offset angle α, the second offset angle γ, the ratio of the distance from the end point A to the tire shoulder to the tire width, the thickness of the reinforcing rib, and the ratio of the distance from the reinforcing rib to the center line to the distance from the reinforcing rib to the tire shoulder. During the rolling process of the tire, the contact area with the ground is basically consistent, so that the engineering vehicle will not bump up and down, and resonance with the parts of the engineering vehicle is avoided. At the same time, it is beneficial to evenly apply force to the ground contacting part, evenly wear the tread, avoid uneven wear of the tire tread, and increase the service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of the tire of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the tire tread pattern of the utility model.

[0023] Figure 3 yes Figure 1 Schematic diagram of a tire cut across its width.

[0024] Figure 4 yes Figure 3 Schematic diagram from another perspective.

[0025] Among them, pattern block 1, first pattern block 11, second pattern block 12, transverse pattern groove 2, first transverse pattern groove 21, second transverse pattern groove 22, center line 3, reinforcement rib 4, tire shoulder 5, line 6, pattern chamfer 7 DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the implementation of the utility model, not all of the implementation. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, tire width refers to the distance from the tire shoulder on one side to the tire shoulder on the other side, that is, Figure 2 The distance between the tire shoulders 5 on both sides is shown in FIG.

[0028] The center line 3 refers to the most middle line distributed along the circumferential direction of the tire tread.

[0029] like Figure 1 and Figure 2 As shown, a tire pattern suitable for high-load engineering machinery includes a tire tread, on which pattern blocks 1 are arranged along the tire width direction, and the pattern blocks 1 are evenly spaced and distributed on the tire tread along the tire circumferential direction, and transverse pattern grooves 2 are provided between adjacent pattern blocks 1;

[0030] The pattern blocks 1 include first pattern blocks 11 evenly spaced on the left side of the center line 3, and second pattern blocks 12 evenly spaced on the right side of the center line 3;

[0031] The transverse grooves 2 include first transverse grooves 21 evenly spaced apart on the left side of the center line 3, and second transverse grooves 22 evenly spaced apart on the right side of the center line 3;

[0032] The first transverse groove 21 and the second transverse groove 22 have opposite bending directions, one bending forward and the other bending backward, and are centrally symmetrical with respect to a certain point on the center line 3 .

[0033] The utility model limits the parameters of the bending angle β, the first offset angle α, the second offset angle γ, the ratio of the distance from the end point A to the tire shoulder 5 to the tire width, the thickness of the reinforcing rib 4, and the ratio of the distance from the reinforcing rib 4 to the center line 3 to the distance from the reinforcing rib 4 to the tire shoulder 5. During the rolling process of the tire, the contact area with the ground is basically consistent, so that the engineering vehicle will not bump up and down, and resonance with the parts of the engineering vehicle is avoided. At the same time, it is beneficial to evenly apply force to the ground contacting part, evenly wear the tread, avoid uneven wear of the tire tread, and increase the service life of the tire.

[0034] like Figure 1 and Figure 2 As shown, the transverse groove 2 is bent in shape, and the bending directions on both sides of the center line 3 are opposite, forming an octagonal structure, which can provide good grip and anti-skid performance when the tire is running.

[0035] like Figure 2 As shown, the bending angle β of the transverse groove 2 is set to an obtuse angle, so that the pattern block 1 formed between two adjacent transverse grooves 2 in the tire circumferential direction is not easily cut.

[0036] like Figure 1 and Figure 2 As shown, the first pattern block 11 and the second pattern block 12 extend from the tire tread to the tire shoulder 5 , and are centrally symmetrical with respect to a certain point on the center line 3 .

[0037] The first pattern blocks 11 and the second pattern blocks 12 are connected to each other at the center line 3 ; and adjacent pattern blocks 1 are connected to each other at the center line 3 .

[0038] The relative position arrangement and distribution of the pattern blocks 1 and the transverse pattern grooves 2 of the utility model can provide a strong driving force.

[0039] like Figure 2 As shown, the angle between the upper edge of the first pattern block 11 and the width direction of the tire tread is a first offset angle α, and the angle between the lower edge of the first pattern block 11 and the width direction of the tire tread is a second offset angle γ. The angle ranges of the first offset angle α and the second offset angle γ are both 0°-10°.

[0040] Since the first pattern block 11 and the second pattern block 12 are centrally symmetrical with respect to a certain point on the center line 3, the angle between the lower edge of the second pattern block 12 and the width direction of the tire tread is the first offset angle α, and the angle between the upper edge of the second pattern block 12 and the width direction of the tire tread is the second offset angle γ.

[0041] like Figure 1 and Figure 2 As shown, patterns may also be provided on the first pattern block 11 and the second pattern block 12 to make the tire more beautiful.

[0042] by Figure 2 Taking the figure on the left side of the center line 3 in the figure as an example, if the first offset angle α is too large, the fold line of the upper edge of the outer contour of the first tread block 11 of the tire will form a sharp angle, that is, the bending angle β is too small, and when the tire rolls and contacts the ground, it is easy to cause the first tread block 11 to wear and fall off, thereby affecting the service life of the tire;

[0043] If the included angle of the second offset angle γ is negative, that is, the lower edge of the first tread block 11 is at the top and the tire width direction is at the bottom of the two sides constituting the second offset angle γ (such as Figure 2 As shown in , the two sides constituting the second offset angle γ, with the lower edge of the first tread block 11 at the bottom and the tire width direction at the top), will cause the fold line of the lower edge of the outer contour of the first tread block 11 of the tire to form a sharp angle. During the process of the tire rolling and contacting the ground, the corners of the first tread block 11 will first contact the ground, which is likely to cause wear and loss of the first tread block 11, thereby affecting the service life of the tire.

[0044] In order to prevent the angle formed by the broken lines of the outer contour of the pattern block 1 from being too small, the utility model limits the angle sizes of the first offset angle α and the second offset angle γ, which can prevent the pattern block 1 at the tire shoulder 5 from contacting the ground first, causing block falling and wear, thereby affecting the service life of the tire.

[0045] The position of the transverse groove 2 close to the center of the tire tread is end point A, and the ratio of the distance from end point A to the tire shoulder 5 to the tire width is 0.4-0.5.

[0046] If the ratio of the distance from the end point A to the tire shoulder 5 to the tire width is too large, the upper and lower spacing between the first pattern block 11 and the second pattern block 12 will become smaller, and the coverage area of ​​the pattern block will become smaller. Generally speaking, the crown of the tire receives the greatest stress, and a small spacing may easily cause the pattern strength to be insufficient, and the pattern block of the crown is more likely to be twisted and deformed. The greater the deformation, the higher the heat generation.

[0047] If the ratio of the distance from the end point A to the tire shoulder 5 to the tire width is too small, the pattern block covers a larger area, which wastes materials and cannot solve the heat generation problem, which can easily cause early damage to the tire.

[0048] The utility model utilizes the transverse grooves 1 on the tire shoulder 5 to provide heat dissipation for the tire, thereby improving the performance and life of the tire.

[0049] The first transverse groove 21 and the second transverse groove 22 are independent of each other at the center line 3 and are not connected to each other, and their width gradually increases from the center line 3 to the tire shoulder 5, that is, the width of the first transverse groove 21 and the second transverse groove 22 is narrower on the side close to the center line 3, and along the tire width direction, the closer to the tire shoulder 5, the wider the width, which is conducive to the discharge of stones and mud.

[0050] like Figure 1 As shown, the transverse groove 2 in the present invention does not end at the tire shoulder 5. Figure 2 The figure only shows the pattern distribution of the grooves and blocks on the tire tread. Figure 3 and Figure 4 It can be clearly seen that the transverse groove 2 extends to the side of the tire, and the overall structure of the groove bottom of the transverse groove 2 is a high, medium and low arrangement, that is, the groove bottom depth of the transverse groove 2 gradually deepens from the tread to the sidewall, which can play a role in strengthening the groove bottom strength and heat dissipation of the tire.

[0051] Preferably, the groove bottom curve of the transverse groove 2 is a full arc structure, which is beneficial to the stone removal of the transverse groove 2 and the protection of the bottom of the transverse groove 2. The variable groove angle further improves the traction and lateral force of the tire.

[0052] like Figure 2 As shown, a reinforcing rib 4 is provided at the bottom of the transverse groove 2 on one side close to the center line 3 of the tire tread, which can make the bottom of the transverse groove 2 stronger.

[0053] The thickness of the reinforcing rib 4 is 1 / 2-3 / 5 of the thickness of the pattern block 1, and the ratio of the distance from the reinforcing rib 4 to the center line 3 to the distance from the reinforcing rib 4 to the tire shoulder 5 is 0.4-0.5. If the distance ratio is too small, the rigidity of adjacent pattern blocks cannot be guaranteed. If the distance ratio is too large, it will cause the tire to have too much rubber, high heat generation at the bottom of the transverse pattern groove, and poor heat dissipation performance.

[0054] The groove wall and groove bottom of the transverse groove 2 of the present application are both provided with pattern chamfers 7, that is, pattern chamfers 7 are provided on both sides of the line 6 and intersect on a line, which can prevent cracks from occurring at the groove bottom.

[0055] The utility model adopts the distribution of pattern blocks and pattern grooves of this structure and also arranges reinforcing ribs at the bottom of the pattern grooves, so that the tire has high load and cutting resistance performance without losing traction and has the ability to work under harsh working conditions.

[0056] Tires are donut-shaped elastic rubber products that are installed on various vehicles or machinery and are used for ground-contact rolling. They are usually installed on metal rims and can support the vehicle body, cushion external impacts, achieve contact with the road surface and ensure the vehicle's driving performance. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperatures when driving. Therefore, they must have high load-bearing performance, traction performance and cushioning performance; at the same time, they are also required to have high wear resistance and flexibility resistance, as well as low rolling resistance and heat generation.

[0057] There are patterns designed on the tire, and patterns of different shapes have different functions. For example, the straight groove pattern, also called the ordinary pattern, is a pattern design with longitudinal grooves as the main component. It has excellent handling stability, small rotation resistance, low noise, and especially excellent drainage performance. It is not easy to slip laterally, but the driving and traction are poor; the transverse groove pattern has excellent driving force, braking force and traction, and its wear resistance is excellent, but the noise is loud; the longitudinal and transverse groove pattern is also called a comprehensive pattern, and its design of combining straight groove and transverse groove types has the advantages of both longitudinal groove and transverse groove patterns, but it is prone to abnormal wear; the block pattern, the pattern is arranged in a regular block shape, with good driving force and braking force, providing power to drive the car forward, but poor wear resistance and short mileage life.

[0058] In actual use, using tires with different shapes and patterns according to different environments and conditions can play an effective auxiliary role.

[0059] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A tire pattern suitable for high-load engineering machinery, comprising a tire tread, characterized in that: Pattern blocks (1) are arranged on the tire tread along the tire width direction, the pattern blocks (1) are evenly spaced and distributed on the tire tread along the tire circumferential direction, and transverse pattern grooves (2) are provided between adjacent pattern blocks (1); The pattern blocks (1) include first pattern blocks (11) evenly spaced apart on the left side of the center line (3), and second pattern blocks (12) evenly spaced apart on the right side of the center line (3); The transverse grooves (2) include first transverse grooves (21) evenly spaced apart on the left side of the center line (3), and second transverse grooves (22) evenly spaced apart on the right side of the center line (3); The first transverse groove (21) and the second transverse groove (22) have opposite bending directions, one bending forward and the other bending backward, and are centrally symmetrical with respect to a certain point on the center line (3).

2. The tire pattern for high-load construction machinery according to claim 1, characterized in that: The bending angle β of the transverse groove (2) is set to an obtuse angle.

3. The tire pattern for high-load construction machinery according to claim 1, characterized in that: The first pattern block (11) and the second pattern block (12) extend from the tire tread to the tire shoulder (5), and are centrally symmetrical with respect to a certain point on the center line (3).

4. The tire pattern for high-load construction machinery according to claim 3, characterized in that: The first pattern block (11) and the second pattern block (12) are connected to each other at the center line (3); and adjacent pattern blocks (1) are connected to each other at the center line (3).

5. The tire pattern for high-load construction machinery according to claim 4, characterized in that: The angle between the upper edge of the first pattern block (11) and the width direction of the tire tread is a first offset angle α, and the angle between the lower edge of the first pattern block (11) and the width direction of the tire tread is a second offset angle γ. The first offset angle α and the second offset angle γ are both in the range of 0°-10°.

6. The tire pattern for high-load construction machinery according to claim 1, characterized in that: The position of the transverse groove (2) close to the center of the tire tread is end point A, and the ratio of the distance from end point A to the tire shoulder (5) to the tire width is 0.4-0.

5.

7. The tire pattern for high-load construction machinery according to claim 1, characterized in that: The first transverse groove (21) and the second transverse groove (22) are independent of each other at the center line (3) and are not connected to each other, and their width gradually increases from the center line (3) towards the tire shoulder (5).

8. The tire pattern for high-load construction machinery according to claim 1, characterized in that: A reinforcing rib (4) is provided at the bottom of one side of the transverse groove (2) close to the center line (3) of the tire tread.

9. The tire pattern for high-load construction machinery according to claim 8, characterized in that: The thickness of the reinforcing rib (4) is 1 / 2-3 / 5 of the thickness of the pattern block (1), and the ratio of the distance from the reinforcing rib (4) to the center line (3) to the distance from the reinforcing rib (4) to the tire shoulder (5) is 0.4-0.5.

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