High-heavy-load tire with seam allowance structure
By setting widened shoulder pads and drainage structures in the tires, the problem of poor heat dissipation effect of traditional radial tires is solved, the shoulder strength and heat dissipation performance are improved, and stress concentration and shoulder empty are avoided.
Patent Information
- Application Number
- CN202421293140.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The heat dissipation effect of traditional radial tires is poor, resulting in concentrated stress at the shoulder, prone to shoulder emptying, and limited thickness increase, making it difficult to effectively dissipate heat.
A high-heavy-load sub-port structure tire is designed, and by setting widened shoulder pads, drainage blocks and drainage plates, the shoulder thickness and airflow guidance effect are increased, and the heat dissipation performance is improved.
The strength and heat dissipation effect at the shoulder are increased, and the stress concentration and shoulder emptying are avoided. At the same time, the heat dissipation process is accelerated through the drainage structure.
Smart Images
Figure CN222473809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of load-bearing radial tires, in particular to a high-load radial tire structure. Background Art
[0002] Radial tires are a type of tire structure, different from bias tires, arch tires, pressure-regulated tires, etc. The international code for radial tires is "R", commonly known as "steel tires".
[0003] Traditional radial tires usually require sufficient heat dissipation due to their heavy load-bearing capacity and complex road conditions. In addition to setting special patterns, the traditional way to enhance heat dissipation is to increase the thickness of the tire tread to increase the tire surface area to achieve the effect of increasing heat dissipation. The shoulder of a traditional radial tire is the thinnest part. Therefore, when the tire is working, the stress is relatively concentrated at the thinnest shoulder. When the heat dissipation effect is not good, shoulder space is likely to appear here. Therefore, in order to avoid the above problems, the increase in thickness is very limited, which results in the heat dissipation effect is still insufficient. Therefore, a high-load sub-mouth structure tire is proposed to solve the above problems. Utility Model Content
[0004] Based on the above description, the utility model provides a high-load radial tire with a mouth structure to solve the problem of poor heat dissipation effect of existing radial tires.
[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a high-load sub-mouth structure tire, comprising: a tire body, the tire body comprising a main carcass, a tread pattern and an inner liner, the sub-mouth structure comprising a wire ring, a carcass cord, a filling rubber, a wire wrap, a first nylon wrap and a second nylon wrap, a belt is arranged inside the main carcass and in contact with the carcass cord, a widened shoulder pad is arranged between the belt and the carcass cord, and a side heat dissipation structure is arranged on the side of the main carcass and comprises a drainage block and a drainage plate.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] Furthermore, the outer surface of the main carcass is provided with a tread pattern, and the inner side of the main carcass is provided with an inner liner.
[0008] Furthermore, the wire ring is arranged inside the main carcass, and the carcass cord, wire wrap, first nylon wrap and second nylon wrap are arranged outside the wire ring in sequence from inside to outside.
[0009] Furthermore, the belt is arranged between the tread pattern and the carcass cord, and a widened tire shoulder pad is arranged between the belt and the carcass cord.
[0010] Furthermore, a filling rubber is arranged inside the carcass cord, and the filling rubber includes an upper apex rubber and a lower apex rubber, and the upper apex rubber is in contact with the lower apex rubber.
[0011] Furthermore, the thickness of the main carcass near the BB is smaller than the thickness of other positions of the main carcass.
[0012] Furthermore, drainage blocks are arranged on both sides of the main carcass, and the diameter of the drainage block on the side close to the main carcass is smaller than the diameter of the drainage block on the side away from the main carcass.
[0013] Furthermore, the guide plate is a hard metal ring, and the diameter of the guide plate at a side close to the main carcass is smaller than the diameter of the guide plate at a side away from the main carcass.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0015] 1. The utility model makes the main carcass wider on the side close to the tread pattern by setting components such as widened shoulder pads, so that the thickness of the shoulder is increased, and the strength of the shoulder is increased. Since the main carcass at the BB is thinner, the BB is more likely to contact with the external air, thereby achieving the effect of increasing heat dissipation. The first nylon cover cloth and the second nylon cover cloth are set to strengthen the strength of the sub-mouth structure;
[0016] 2. The setting of the guide block and the guide plate achieves the effect of guiding the air flow. When the tire slides and rubs against the ground during braking, the contact point between the tire and the ground is hot due to the sliding friction, and the heat is not easy to dissipate. At this time, the guide block and the guide plate guide the airflow, so that the airflow moves along the direction of the guide block, and part of the airflow is guided to the side of the contact point between the tire and the ground. The space available for the airflow here is reduced, and the air pressure decreases after the flow rate increases, thereby absorbing more air to flow from the side of the contact point between the tire and the ground, achieving the effect of accelerating heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the structure of a heavy-duty sub-mouth structure tire provided by an embodiment of the utility model;
[0018] Figure 2 for Figure 1 A structural diagram from another perspective;
[0019] Figure 3 for Figure 2 Structural cross-sectional view of
[0020] Figure 4 for Figure 3 A schematic diagram of an enlarged cross-sectional structure;
[0021] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;
[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0023] 1. Main carcass; 2. Tread pattern; 3. Belt; 4. Wire bead; 5. Carcass cord; 6. Widened shoulder pad rubber; 7. Inner liner; 8. Drainage block; 9. Drainage plate; 10. Filling rubber; 11. Steel wire wrap; 12. First nylon wrap; 13. Second nylon wrap. DETAILED DESCRIPTION
[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0026] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0027] See also Figure 1 and Figure 4 , a high-load and heavy-duty tire with a sub-mouth structure, comprising:
[0028] The tire body comprises a main carcass 1, a tread pattern 2 and an inner liner 7. The outer surface of the main carcass 1 is provided with the tread pattern 2, and the inner side of the main carcass 1 is provided with the inner liner 7.
[0029] Based on the above, the main carcass 1, the tread pattern 2 and the inner liner 7 constitute the main structure of the tire, wherein the tread pattern 2 can be set to a transverse pattern, a longitudinal pattern, a mixed pattern, etc. according to actual needs.
[0030] like Figure 3-Figure 5As shown, the sub-mouth structure includes a wire ring 4, a carcass cord 5, a filling rubber 10, a steel wire wrap 11, a first nylon wrap 12 and a second nylon wrap 13;
[0031] A belt 3, which is arranged inside the main carcass 1 and contacts the carcass cord 5;
[0032] Widened shoulder pad 6, which is arranged between the belt 3 and the carcass cord 5;
[0033] Based on the above, the setting of the widened shoulder pad 6 increases the thickness of the shoulder, which increases the strength at the shoulder and avoids excessive load on the shoulder caused by the concentrated stress at the junction of the crown and the sidewall. The carcass cord 5, the wire cloth 11, the first nylon cloth 12 and the second nylon cloth 13 play a role in strengthening the strength of the sub-mouth, and the main carcass 1 at the BB is thinner and easier to contact with the external air, thereby achieving the effect of increasing heat dissipation.
[0034] like Figure 1-Figure 4 As shown, the side heat dissipation structure is arranged on the side of the main carcass 1 and includes a drainage block 8 and a drainage plate 9;
[0035] Drainage blocks 8 are provided on both sides of the main carcass 1, and the diameter of the drainage block 8 close to the main carcass 1 is smaller than the diameter of the drainage block 8 away from the main carcass 1;
[0036] The guide plate 9 is a hard metal ring, and the diameter of the guide plate 9 close to the main carcass 1 is smaller than the diameter of the guide plate 9 away from the main carcass 1;
[0037] Based on the above, the setting of the guide plate 9 increases the strength of the guide block 8, making the guide block 8 not easy to deform, and the guide block 8 plays a role in guiding the flow of air. When the tire brakes on the car, the tire and the ground generate sliding friction, and the contact surface of the two generates a large amount of heat. The heat here is not easy to dissipate. When the airflow hits the guide block 8, it flows along the outer edge of the guide block 8. During the air flow, the closer to the ground the flowable space is, the smaller it is, that is, the cross-sectional area of the airflow becomes smaller. When the total amount of airflow remains unchanged, the smaller the cross-sectional area represents a faster flow rate. The increase in flow rate causes the air pressure here to decrease. When the atmospheric pressure remains unchanged, suction will be generated in places with low air pressure, so that air from other positions is sucked here, achieving the effect of directional flow of airflow. The directional and fast-flowing airflow can more easily dissipate heat, that is, the heat dissipation effect is increased.
[0038] In actual use of this embodiment, since the main carcass 1 at the BB is relatively thin, the carcass cord 5 and other structures are more likely to exchange heat with the air at this location, thereby enhancing the heat dissipation effect at this location.
[0039] The widened shoulder pad 6 increases the thickness and strength of the shoulder, so that the shoulder, which is the junction of the tread crown and the sidewall, can withstand greater pressure, thus avoiding damage caused by stress concentration.
[0040] The setting of the guide plate 9 and the guide block 8 plays a role in guiding the flow of air. When the tire brakes, the tire and the ground generate sliding friction, and a large amount of heat is generated on the contact surface of the two. The heat at this place is not easy to dissipate. When the airflow hits the guide block 8, it flows along the outer edge of the guide block 8. During the air flow, the closer to the ground, the smaller the flowable space is, that is, the cross-sectional area of the airflow becomes smaller. When the total amount of airflow remains unchanged, a smaller cross-sectional area represents a faster flow rate. The increase in flow rate leads to a decrease in the air pressure here. When the atmospheric pressure remains unchanged, suction is generated at the place with low air pressure, so that air at other positions is sucked here.
[0041] On the one hand, the hot air at the contact point between the tire and the ground is easier to flow under the action of suction, making the heat dissipation effect better. On the other hand, the cold air at other positions is also easier to flow to the contact point between the tire and the ground. The intervention of cold air makes it easier to cool down there, which plays a role in increasing the heat dissipation effect.
[0042] The tire reduces the thickness of the main carcass 1B-B so that the sub-mouth structure can exchange heat with the outside air more quickly at this location. The carcass cord 5, the wire cloth 11, the first nylon cloth 12 and the second nylon cloth 13 cooperate with each other to strengthen the sub-mouth structure. The guide plate 9 and the guide block 8 make full use of the characteristics of the airflow during the operation of the car, so that the pressure difference generated when the airflow flows from the side of the contact surface between the tire and the ground can dissipate the heat at this location more quickly, thereby achieving a heat dissipation effect.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A heavy-duty tire with a mouth structure, characterized in that: include: A tire body, comprising a main carcass (1), a tread pattern (2) and an inner liner (7); The sub-mouth structure comprises a steel bead ring (4), a carcass cord (5), a filling rubber (10), a steel wire wrapping cloth (11), a first nylon wrapping cloth (12) and a second nylon wrapping cloth (13); A belt (3) disposed inside the main carcass (1) and in contact with the carcass cord (5); A widened shoulder rubber (6) disposed between the belt (3) and the carcass cord (5); A side heat dissipation structure is arranged on the side of the main carcass (1) and comprises a drainage block (8) and a drainage plate (9).
2. The heavy-duty tire according to claim 1, characterized in that: The outer surface of the main carcass (1) is provided with a tread pattern (2), and the inner side of the main carcass (1) is provided with an inner lining layer (7).
3. The heavy-duty tire according to claim 1, characterized in that: The wire ring (4) is arranged inside the main carcass (1), and the carcass cord (5), the wire wrapping cloth (11), the first nylon wrapping cloth (12) and the second nylon wrapping cloth (13) are arranged on the outside of the wire ring (4) in sequence from the inside to the outside.
4. The heavy-duty tyre according to claim 1, characterized in that: The belt (3) is arranged between the tread pattern (2) and the carcass cord (5), and a widened tire shoulder pad (6) is arranged between the belt (3) and the carcass cord (5).
5. The high-load bearing tyre according to claim 1, characterized in that: A filling rubber (10) is arranged inside the carcass cord fabric (5), and the filling rubber (10) comprises an upper apex rubber and a lower apex rubber, and the upper apex rubber is in contact with the lower apex rubber.
6. The heavy-duty tyre with a mouth structure according to claim 1, characterized in that: The thickness of the main carcass (1) near the BB is smaller than the thickness of other positions of the main carcass (1).
7. The high-load bearing tyre according to claim 1, characterized in that: Drainage blocks (8) are arranged on both sides of the main carcass (1), and the diameter of the drainage block (8) on the side close to the main carcass (1) is smaller than the diameter of the side away from the main carcass (1).
8. The heavy-duty tire with a mouth structure according to claim 1, characterized in that: The guide plate (9) is a hard metal ring, and the diameter of the guide plate (9) on the side close to the main carcass (1) is smaller than the diameter of the side away from the main carcass (1).