High self-cleaning high load capacity agricultural tire
Patent Information
- Application Number
- CN202522353532.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-06
AI Technical Summary
[0003]然而，当前针对短途运输与浅泥地作业的农机轮胎，普遍存在花纹设计短板：若侧重泥地抓地力采用深花纹，易在公路行驶时因花纹与地面摩擦过度导致过快磨损；若侧重公路耐磨性采用浅花纹，又会在浅泥地中因抓地力不足、自洁性差出现打滑或积泥问题，难以兼顾泥地牵引、运输行驶、路面抓地的综合需求
[0013]与现有技术相比，本实用新型的高自洁高通过型农业轮胎，通过胎冠花纹与胎肩结构的协同优化，首先实现了突出的高自洁性。胎冠外表面的花纹块整体呈人字形且沿中心线交错分布，轮胎滚动时能主动将泥土、杂草向两侧排开，减少杂物缠绕；同时胎肩内侧边缘的减料平面，减少了相邻花纹块间的遮挡面积，让花纹块侧面的泥土更易脱落，避免在胎肩与胎冠过渡区堆积。这使得田间作业无需频繁停机清洁轮胎，大幅减少人工清洁的次数与时间成本，保障农机作业连续性，提升单日作业效率。
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Figure CN224868149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high self-cleaning and high passability agricultural tire, belonging to the field of tire design and manufacturing. Background Technology
[0002] Agricultural tires operate in highly complex environments, needing to handle two core scenarios simultaneously: first, short-distance transport from fields to warehouses, often involving rural dirt roads and paved roads with abundant gravel and potholes; second, operations in shallow mud or loosened farmland after tilling, where the overall environment is also influenced by multiple factors such as terrain, soil condition, and climate. These two scenarios directly dictate that tires must simultaneously meet diverse performance requirements, including self-cleaning, wear resistance, grip, load-bearing capacity, and passability. Among these, tread pattern design is a core influencing factor, determining not only the tire's traction and driving stability but also its adaptability to different terrains.
[0003] However, current agricultural machinery tires designed for short-distance transportation and shallow mud operations generally suffer from shortcomings in tread pattern design: if deep treads are used to prioritize mud grip, excessive friction between the tread and the ground during highway driving can lead to premature wear; if shallow treads are used to prioritize highway wear resistance, insufficient grip and poor self-cleaning properties can cause slippage or mud accumulation in shallow mud, making it difficult to meet the comprehensive needs of mud traction, transportation, and road grip. Therefore, designing agricultural tires with high self-cleaning and high passability specifically adapted to this scenario has become a key direction for solving these pain points. Summary of the Invention
[0004] To address the problems existing in the prior art, this utility model provides a high self-cleaning and high passability agricultural tire, which improves the self-cleaning and passability of agricultural tires and meets the performance requirements of different operating scenarios.
[0005] To achieve the above objectives, this utility model employs a high self-cleaning and high passability agricultural tire, including a sidewall, a shoulder, and a crown. The outer surface of the crown is provided with tread blocks, and the tread blocks are generally in a herringbone pattern. The herringbone pattern is evenly distributed on both sides of the center line of the crown. The high self-cleaning and high passability agricultural tire has a tread saturation of 15%-16% and a tread depth of 25mm-47mm. The tire crown has multiple tread blocks evenly distributed along its center line in the circumferential direction. A material reduction plane is provided between every two adjacent tread blocks, and the material reduction plane is located at the inner edge of the tire shoulder. The tread saturation is defined as the ratio of the total area of the tread blocks to the total area of the tire crown's driving surface.
[0006] As an improvement, the central area of the tire crown is also provided with a crown anti-slip line, which is adapted to the herringbone pattern of the tread blocks; the distance between the crown anti-slip line and the material reduction plane is 15mm.
[0007] As an improvement, the height of the crown anti-slip line is 4mm, the middle of the crown anti-slip line is a second arc, and the two sides are evenly transitioned to the tire crown surface through the first arc.
[0008] As an improvement, the tread blocks adjacent to the material reduction plane have a herringbone high-pattern structure, with a straight front corner on the side of the tread block facing the tire rolling direction and a rounded rear corner on the side facing away from the tire rolling direction.
[0009] As an improvement, the radius of the arc of the rear corner is 130mm-150mm, and the edge of the arc of the rear corner extends to the surface of the tire shoulder.
[0010] As an improvement, taking one tread block of the tire as a unit, the width of the tread block located in the shoulder area is 80%-90% of the total width of the shoulder side; the total width of the shoulder side is the lateral distance from the edge of the shoulder near the sidewall to the edge of the shoulder near the crown.
[0011] As an improvement, the outer surface of the tire shoulder is uniformly provided with a plurality of tire shoulder heat dissipation holes, which are distributed at intervals along the tire circumference.
[0012] As an improvement, the width of the shoulder heat dissipation hole is 68%-75% of the tangent length of the shoulder, the depth of the shoulder heat dissipation hole is 1mm-3mm, and the depth of the shoulder heat dissipation hole has a gradual structure.
[0013] Compared with existing technologies, this utility model's high self-cleaning and high-pass-rate agricultural tire achieves outstanding self-cleaning performance through the synergistic optimization of the tread pattern and shoulder structure. The tread blocks on the outer surface of the tread are arranged in a herringbone pattern and staggered along the center line. When the tire rolls, it actively pushes mud and weeds to both sides, reducing debris entanglement. At the same time, the reduced-material plane on the inner edge of the shoulder reduces the area of obstruction between adjacent tread blocks, making it easier for mud on the sides of the tread blocks to fall off and preventing accumulation in the transition area between the shoulder and tread. This eliminates the need for frequent stops to clean the tires during field operations, significantly reducing the number of manual cleaning operations and time costs, ensuring the continuity of agricultural machinery operations, and improving daily work efficiency.
[0014] Secondly, the design is precisely matched to the high passability requirements, perfectly adapting to both shallow mud and hard road surfaces. The 25mm-47mm tread depth allows the tread blocks to embed deeply into shallow mud or loose soil, increasing the contact area with the soil and significantly improving longitudinal grip. This prevents the tractor from wasting power due to slippage when carrying implements, ensuring that it can be pulled and driven steadily in muddy conditions. Meanwhile, the 15%-16% tread saturation (tread block area / tread travel surface area) can quickly drain water and small gravel on rural dirt roads and asphalt roads, reducing the risk of hydroplaning. At the same time, it reduces the friction area between the tread and the road surface, preventing the tread from wearing out too quickly and extending the tire's lifespan on hard roads.
[0015] Finally, the structural design takes into account the needs of different scenarios, effectively improving stability and durability. The tread, as the annular area in direct contact with the ground, bears the main grip force, while the shoulder, as an arc-shaped transition area, buffers lateral forces during cornering or bumps, preventing the tread blocks from chipping or cracking due to uneven stress. Furthermore, the tread blocks are evenly distributed along the circumference of the tread, allowing ground pressure to be evenly transmitted to each tread block, preventing excessive wear due to localized overload, and further extending the overall tire lifespan. This makes it suitable for the high-frequency start-stop and variable road conditions in short-distance transportation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the tread pattern of this utility model. Figure 4 for Figure 3 AA direction view; In the diagram: 1. Reduced material plane, 2. Shoulder heat dissipation hole, 3. Tire crown, 4. Tire shoulder, 5. Tire sidewall, 6. Tread block, 7. Crown anti-skid line, 8. Straight front corner, 9. Rounded rear corner, 10. First rounded arc, 11. Second rounded arc. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below through specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.
[0019] like Figures 1-4 As shown, a high self-cleaning and high passability agricultural tire includes a sidewall 5, a shoulder 4, and a crown 3. The crown 3 is the annular area where the top of the tire directly contacts the ground and mainly bears the grip force. The shoulder 4 is the arc-shaped transition area between the crown 3 and the sidewall 5, which is used to buffer lateral forces and avoid local overload when the tire turns or bumps. The outer surface of the tire crown 3 is provided with tread blocks 6. The tread blocks 6 are arranged in a herringbone pattern and are evenly distributed on both sides of the center line of the tire crown. They can actively dissipate mud and weeds when rolling, reduce the accumulation of debris, and improve self-cleaning and longitudinal traction. The tread saturation of the agricultural tire is 15%-16% (tread saturation is defined as the ratio of the total area of the tread blocks to the total area of the tire crown driving surface). It can quickly drain residual water on hard surfaces (such as highways) or shallow fields, reduce the risk of slippage, and reduce friction wear between the tread and the road surface, making it suitable for short-distance transportation needs. The tread depth of the tread blocks 6 is 25mm-47mm, which can be deeply embedded in the loose farmland or shallow mud after tilling, increasing the contact area with the soil and increasing the longitudinal traction by 10%-15% compared with ordinary R1 tread pattern. This avoids power waste when the tractor is carrying farm implements and improves mud passability. The tread 3 has multiple tread blocks 6 evenly distributed around its center line. A material reduction plane 1 is provided between every two adjacent tread blocks 6. The material reduction plane 1 is located at the inner edge of the shoulder 4. This structure reduces the obstruction area between the tread blocks 6, which can help the mud attached to the side of the tread blocks to fall off and further enhance the self-cleaning effect.
[0020] In some embodiments, the angle between the herringbone pattern and the center line of the tread 3 is 43°-46°, which can avoid the angle of the tread cords, prevent stress concentration at the bottom of the pattern, avoid problems such as early tread 3 bursting and pattern root cracking caused by cord breakage, and improve the stability of the tire structure.
[0021] In some embodiments, such as Figure 3 As shown, the central area of the tread 3 is also provided with a crown anti-skid line 7. The crown anti-skid line 7 is consistent with the herringbone pattern of the tread block 6. The crown anti-skid line 7 is 15mm away from the tire circumferential distance C of the material reduction plane 1 and is parallel to the material reduction plane 1. It can not only synergistically enhance the anti-skid performance of the tread 3, but also assist in mud removal, avoid local mud accumulation, and further optimize the self-cleaning and gripping effects.
[0022] In some embodiments, such as Figure 3 , Figure 4 As shown, the height E of the crown anti-skid line 7 is 4mm, with a second arc 11 in the middle and a first arc 10 on both sides that smoothly transition to the surface of the tire crown 3. The streamlined arc design avoids stress concentration at the edge of the anti-skid line, reduces mud adhesion, and balances structural durability and self-cleaning properties.
[0023] In some embodiments, such as Figure 1 As shown, the tread block 6 adjacent to the material reduction plane 1 has a herringbone high-pattern structure. The side of the tread block 6 facing the tire rolling direction has a straight front angle 8, and the side facing away from the tire rolling direction has a rounded rear angle 9. The straight front angle 8 facilitates the tire cutting into the soil when rolling, improving traction; the rounded rear angle 9 can reduce soil residue accumulation and further optimize self-cleaning performance.
[0024] In some embodiments, the radius of the arc of the rear corner 9 is 130mm-150mm, and its edge extends to the outer surface of the tire shoulder 4. This design ensures a smooth transition between the tread block 6 and the tire shoulder 4, preventing mud from accumulating at the junction, while also enhancing the anti-blocking ability of the tread block 6 and extending its service life.
[0025] In some embodiments, such as Figure 3 As shown, taking one tread block as a unit (the tread block refers to the circumferential structural range corresponding to the center distance between two adjacent identical tread units in the tire's circumferential direction), the width b of the tread block located in the shoulder 4 area is 80%-90% of the total shoulder side width B (the total shoulder side width is the lateral distance from the edge of the shoulder 4 near the sidewall 5 to the edge of the shoulder 4 near the crown 3). This width design can improve the support performance of the shoulder 4 and its contact area with the ground, prevent the shoulder 4 from slipping off, and enhance driving stability and grip.
[0026] In some embodiments, such as Figure 1 , Figure 2 As shown, the outer surface of the tire shoulder 4 has multiple tire shoulder heat dissipation holes 2 distributed at intervals along the tire circumference, which can quickly dissipate the heat generated by friction in the tire shoulder 4 area, prevent the tire shoulder 4 from overheating and aging, and extend the tire service life.
[0027] In some embodiments, such as Figure 1As shown, the width D of the shoulder heat dissipation hole 2 is 68%-75% of the length L of the arc tangent on the outer surface of the shoulder 4, and the depth of the shoulder heat dissipation hole 2 is 1mm-3mm, and the depth does not penetrate the internal structure of the shoulder 4. This ensures heat dissipation while avoiding weakening the structural strength of the shoulder 4, ensuring that the support performance of the shoulder 4 is not affected. The depth of the shoulder heat dissipation hole 2 has a gradual structure, transitioning from 1mm at one end to 3mm at the other end, ensuring heat dissipation efficiency while adapting to the structural strength requirements of different areas of the shoulder.
[0028] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.
Claims
1. A high self-cleaning and high-pass-through agricultural tire, characterized in that, Includes sidewall (5), shoulder (4) and crown (3). The outer surface of the crown (3) is provided with pattern blocks (6). The pattern blocks (6) are in the shape of a herringbone pattern. The herringbone pattern is evenly distributed on both sides of the center line of the crown. The tread saturation of the high self-cleaning and high passability agricultural tire is 15%-16%, and the tread depth of the tread blocks (6) is 25mm-47mm; the tread crown (3) has multiple tread blocks (6) evenly distributed along its center line in the circumferential direction, and a material reduction plane (1) is provided between every two adjacent tread blocks (6), and the material reduction plane (1) is located at the inner edge of the tire shoulder (4); the tread saturation is defined as the ratio of the total area of the tread blocks to the total area of the tire crown driving surface.
2. The high self-cleaning and high-pass-through agricultural tire according to claim 1, characterized in that, The central area of the tire crown (3) is also provided with a crown anti-slip line (7), which is adapted to the herringbone pattern of the tread block (6); the distance between the crown anti-slip line (7) and the material reduction plane (1) is 15mm.
3. The high self-cleaning and high-pass-through agricultural tire according to claim 2, characterized in that, The crown anti-slip line (7) has a height of 4 mm. The middle part of the crown anti-slip line (7) is a second arc (11), and the two sides are evenly transitioned to the surface of the tire crown (3) through the first arc (10).
4. The high self-cleaning and high-pass-through agricultural tire according to claim 1, characterized in that, The pattern block (6) adjacent to the material reduction plane (1) has a herringbone high pattern structure. The pattern block (6) has a straight front corner (8) on the side facing the tire rolling direction and a rounded rear corner (9) on the side away from the tire rolling direction.
5. The high self-cleaning and high-pass-through agricultural tire according to claim 4, characterized in that, The radius of the arc of the rear corner (9) is 130mm-150mm, and the edge of the rear corner (9) extends to the surface of the shoulder (4).
6. The high self-cleaning and high-pass-through agricultural tire according to claim 1, characterized in that, Taking one tread interval of the tire as a unit, the width of the tread block (6) located in the area of the tire shoulder (4) is 80%-90% of the total width of the side of the tire shoulder (4); the total width of the side of the tire shoulder (4) is the lateral distance from the edge of the tire shoulder (4) near the sidewall (5) to the edge of the tire shoulder (4) near the crown (3).
7. The high self-cleaning and high-pass-through agricultural tire according to claim 1, characterized in that, The outer surface of the tire shoulder (4) is uniformly provided with a plurality of tire shoulder heat dissipation holes (2), which are distributed at intervals along the tire circumference.
8. The high self-cleaning and high-pass-through agricultural tire according to claim 7, characterized in that, The width of the shoulder heat dissipation hole (2) is 68%-75% of the tangent length of the shoulder (4), the depth of the shoulder heat dissipation hole (2) is 1mm-3mm, and the depth of the shoulder heat dissipation hole (2) has a gradual structure.