Tyre for vehicle
阅读说明：本技术 一种轮胎 (Tyre for vehicle ) 是由 王�锋 滕雷 刘晓棠 陈东 朱丽艳 陈雪梅 刘杰 于 2020-06-02 设计创作，主要内容包括：本发明涉及乘用车轮胎技术领域,公开了一种轮胎,其包括：胎冠、胎侧、胎圈、胎体增强件和橡胶增强件,胎圈用于将轮胎固定在轮辋上,胎侧从胎圈径向外沿,且与胎冠相连接,胎冠沿着轮胎周向覆盖,胎体增强件固定在胎圈上,橡胶增强件周向布置在胎体增强件和胎侧之间,且橡胶增强件连接胎侧、胎圈和胎体增强件,同时对胎圈结构中涉及到的各部件定位参数进行了改进,本发明各部件交合位置的合理错位,使胎侧部位的应力有效分散,减小胎侧部位的热量集中,轮胎材料采用低生热橡胶,减小轮胎在运动过程中的温升,依据本发明制作的轮胎可以提高轮胎的滚阻性能。(The invention relates to the technical field of passenger vehicle tires, and discloses a tire, which comprises: the tire bead is used for fixing the tire on a rim, the tire side is radially outward from the tire bead and is connected with the tire bead, the tire crown covers along the circumferential direction of the tire, the tire body reinforcement is fixed on the tire bead, the rubber reinforcement is circumferentially arranged between the tire body reinforcement and the tire side and is connected with the tire side, the tire bead and the tire body reinforcement, and meanwhile, the positioning parameters of all parts related to the tire bead structure are improved.)
1. A tire, comprising:
the tire comprises two tire beads, wherein the two tire beads are symmetrically arranged at two ends of a rim along the axial direction of the rim, and the tire beads are used for fixing the tire on the rim;
the tire bead comprises two tire sidewalls, wherein the two tire sidewalls are respectively externally connected with the two tire beads and radially extend outwards along the tire beads;
the two ends of the tire crown are respectively connected with the two tire sidewalls, and the tire crown covers along the circumferential direction of the tire;
one end of the carcass reinforcement is fixed on the tire bead, the carcass reinforcement is molded along the circumferential direction of the tire bead, the carcass reinforcement is radially arranged along the outer edge of the tire bead, and one side of the carcass reinforcement is attached to the inner side wall of the tire side;
a rubber reinforcement circumferentially disposed between a carcass reinforcement and a sidewall and profiled circumferentially along the bead, the rubber reinforcement connecting the sidewall, bead and carcass reinforcement;
Wherein the radial height of the bead is 15% or less of the radial height of the entire tire, the radial height of the bead is 7% or more of the radial height of the entire tire, the radial height of the rubber reinforcement is 40% or less of the radial height of the entire tire, the radial height of the sidewall is 35% or less of the radial height of the entire tire, the radial height of the sidewall is 20% or more of the radial height of the entire tire, and the thickness of the sidewall is 17% or less of the radial height of the entire tire.
2. The tire of claim 1, wherein said bead comprises
The tire bead steel wire is annular and provides a basic-shape base frame for the tire;
and the apex rubber is coated on the bead wire so as to connect the bead wire with the tire rubber element such as the tire side.
3. The tire of claim 2, wherein said sidewalls comprise:
the sidewall rubber is coated on the outer side of the triangular rubber;
and the bead filler is connected to one end of the sidewall rubber.
4. The tire of claim 1, wherein said crown comprises:
The two ends of the tread rubber layer are respectively connected to the peripheries of the two tire sides;
a crown reinforcement overlaying said tread rubber layer in the tire circumferential direction.
5. The tire of claim 3, wherein said tire has an overall radial height H, said apex has a radial height KA, said rubber reinforcement has an upper end point having a radial height KB, and said bead filler has an upper end point having a radial height KC; the radial height of the lower end point of the seam allowance protecting glue is KD;
wherein KA is more than or equal to 7% and less than or equal to 15% of H, KB is less than or equal to 40% of H, KC is more than or equal to 20% and less than or equal to 35% of H, and KD is more than or equal to 18% and less than or equal to 30% of H.
6. The tire of claim 1, wherein said rubber reinforcement is made of a rubber compound having an elastic modulus at 60 ℃ of E' and a viscous modulus at 60 ℃ of E ";
wherein E 'is less than or equal to 0.15E' -0.4MPa, and the value of loss factor E '/E' of the rubber mixture at 60 ℃ is less than or equal to 0.05.
7. A tire according to claim 3, wherein a parting plane formed by said bead filler and said sidewall rubber and said rubber reinforcement extends in a tire radial direction and in a tire inner direction.
8. A tire according to claim 3, wherein said side wall rubber is provided with a rubber compound having a shore hardness of 52HA or less in the vulcanized state.
Technical Field
The present invention relates to the technical field of passenger vehicle tires, and in particular to tires of these tires.
Background
In recent years, with the great increase of the automobile holding capacity in the world, the consumption of vehicle energy accounts for the increasing proportion of the whole oil consumption, and according to statistics, CO2 released in the process of generating heat by friction of tires accounts for 3% of greenhouse gas released by global fossil fuel. Automobile fuel consumption is also used to overcome the frictional resistance of tires in a significant portion. Therefore, it has become an important work of tire companies to realize energy saving and emission reduction of automobiles and win "blue sky guard war" by improving tires.
The reduction of the rolling resistance of the tire can be realized by using a low-hysteresis characteristic material, reducing the weight of the tire and the like, and the bottleneck of reducing the rolling resistance of the tire is realized while meeting other performance requirements of the tire in the prior art.
The prior method for reducing the rolling resistance of the tire has the following defects:
1. the rolling resistance is reduced by improving the tread formula, and the wear resistance and the grip of the tire are influenced;
2. by reducing the rolling resistance by reducing the weight of the tire, the safety of the tire will be affected.
Disclosure of Invention
In some embodiments of the present application, there is provided a tire comprising: the tire comprises a tire bead, a tire side, a tire body reinforcing part and a rubber reinforcing part, wherein the tire bead is used for fixing the tire on a rim, the tire side is arranged along the radial outer edge of the tire bead and is connected with the tire bead, the tire crown covers along the circumferential direction of the tire, the tire body reinforcing part is fixed on the tire bead, the rubber reinforcing part is circumferentially arranged between the tire body reinforcing part and the tire side, and the rubber reinforcing part is connected with the tire side, the tire bead and the tire body reinforcing part.
In some embodiments of the present application, the internal structure of the tire is improved by adding the rubber reinforcement between the sidewall, the carcass reinforcement and the bead, the rubber reinforcement is arranged between the carcass reinforcement and the sidewall, and the rubber reinforcement is formed along the bead circumferential direction, the rubber reinforcement connects the apex, the sidewall rubber, the bead filler and the carcass reinforcement together, increasing the connection strength thereof.
In some embodiments of the application, positioning parameters of all parts involved in the internal structure of the tire are improved, the overall radial height of the tire is H, the radial height of the apex is KA, the radial height of the upper end point of the rubber reinforcement is KB, and the radial height of the upper end point of the bead filler is KC; the radial height of the lower end point of the seam allowance protecting glue is KD; wherein KA is more than or equal to 7% and less than or equal to 15% of H, KB is more than or equal to 40% of H, KC is more than or equal to 20% of H and less than or equal to 35% of H, KD is more than or equal to 18% of H and less than or equal to 30% of H; the reasonable design of the inner structure of the tire reduces the rolling resistance of the tire and simultaneously considers the problems of the abrasion resistance, the grip force, the safety and the like of the tire.
In some embodiments of the present application, the choice of rubber material of the tyre is improved, the rubber reinforcement being made of a rubber mixture having an elastic modulus at 60 ℃ of E' and a viscous modulus at 60 ℃ of E "; wherein E is less than or equal to 0.15 × E '-0.4 MPa, the loss factor E/E' value of the rubber mixture at 60 ℃ is less than or equal to 0.05, and the low-heat-generation rubber material is adopted to improve the integral connection stability of the tire and improve the rolling resistance performance of the tire.
In some embodiments of the present application, a tire, comprises: the tire comprises two tire beads, wherein the two tire beads are symmetrically arranged at two ends of a rim along the axial direction of the rim, and the tire beads are used for fixing the tire on the rim; the tire bead comprises two tire sidewalls, wherein the two tire sidewalls are respectively externally connected with the two tire beads and radially extend outwards along the tire beads; the two ends of the tire crown are respectively connected with the two tire sidewalls, and the tire crown covers along the circumferential direction of the tire; one end of the carcass reinforcement is fixed on the tire bead, the carcass reinforcement is molded along the circumferential direction of the tire bead, the carcass reinforcement is radially arranged along the outer edge of the tire bead, and one side of the carcass reinforcement is attached to the inner side wall of the tire side; a rubber reinforcement circumferentially disposed between a carcass reinforcement and a sidewall, the rubber reinforcement being circumferentially shaped along the bead, the rubber reinforcement connecting the sidewall, the bead and the carcass reinforcement, wherein a radial height of the bead is less than 15% of a global radial height of the tire, and a radial height of the bead is greater than 7% of the global radial height of the tire, a radial height of the rubber reinforcement is less than 40% of the global radial height of the tire, a radial height of the sidewall is less than 35% of the global radial height of the tire, a radial height of the sidewall is greater than 20% of the global radial height of the tire, and a thickness of the sidewall is less than 17% of the global radial height of the tire.
In some embodiments of the present application, the bead comprises: the tire bead steel wire is annular and provides a basic-shape base frame for the tire; and the apex rubber is coated on the bead wire so as to connect the bead wire with the tire rubber element such as the tire side.
In some embodiments of the present application, the sidewall comprises: the sidewall rubber is coated on the outer side of the triangular rubber; and the bead filler is connected to one end of the sidewall rubber.
In some embodiments of the present application, the crown comprises: the two ends of the tread rubber layer are respectively connected to the peripheries of the two tire sides; a crown reinforcement overlaying said tread rubber layer in the tire circumferential direction.
In some embodiments of the present application, the overall radial height of the tire is H, the radial height of the apex is KA, the radial height of the upper end point of the rubber reinforcement is KB, and the radial height of the upper end point of the bead filler is KC; the radial height of the lower end point of the seam allowance protecting glue is KD; wherein KA is more than or equal to 7% and less than or equal to 15% of H, KB is less than or equal to 40% of H, KC is more than or equal to 20% and less than or equal to 35% of H, and KD is more than or equal to 18% and less than or equal to 30% of H.
In some embodiments of the present application, the rubber reinforcement is made of a rubber mixture having an elastic modulus at 60 ℃ of E' a viscous modulus at 60 ℃ of E "; wherein E 'is less than or equal to 0.15E' -0.4MPa, and the value of loss factor E '/E' of the rubber mixture at 60 ℃ is less than or equal to 0.05.
In some embodiments of the present application, a parting plane formed by the bead filler and the sidewall rubber and the rubber reinforcement extends in a tire radial direction and a tire inner direction.
In some embodiments of the present application, the rubber compound used in the sidewall rubber HAs a Shore hardness of 52HA or less in a vulcanized state.
Drawings
FIG. 1 is a radial cross-sectional view of a tire of an embodiment of the present invention;
FIG. 2 is an enlarged view of the bead portion shown in FIG. 1;
FIG. 3 is an enlarged view of the sidewall and rubber reinforcement shown in FIG. 1;
FIG. 4 is a positioning explanatory diagram of the embodiment of the present invention shown in FIG. 1;
in the figure, 11, a tread rubber layer; 12. a crown reinforcement; 21. sidewall rubber; 22. protecting the adhesive at the seam allowance; 30. a carcass reinforcement; 41. triangular glue; 42. a bead wire; 50. a rubber reinforcement.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
When the term "radial" is used, the expression relates to the radial direction of the tyre, if closer to the rotation axis of the tyre, the expression "radially inside"; when the term "circumferential" is used, it is expressed as the tire rolling direction; when the term "tire inner" is used, it is stated that the tire is on the side closer to the rim;
as used herein, the terms "elastic modulus E'", "viscous modulus E" "and" tan "are used to refer to dynamic properties well known to those skilled in the art;
the following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.
According to some embodiments of the present application, a tire, as shown in fig. 1, 2, 3 and 4, has a crown, two sidewalls, two beads and two
According to some embodiments of the present application, as shown in fig. 1, the radial height of the bead is less than 15% of the overall radial height of the tire, the radial height of the bead is greater than 7% of the overall radial height of the tire, the radial height of the rubber reinforcement is less than 40% of the overall radial height of the tire, the radial height of the sidewall is less than 35% of the overall radial height of the tire, the radial height of the sidewall is greater than 20% of the overall radial height of the tire, and the thickness of the sidewall is less than 17% of the overall radial height of the tire.
FIG. 2 is an enlarged view of the bead portion shown in FIG. 1, in which an apex 41 is wrapped around the bead wire 42, the
Fig. 3 is an enlarged view of the sidewall and the
Wherein the
In a preferred embodiment of the present invention, the rubber compound used for the
To ensure accurate positioning during production, the
FIG. 4 is a view for explaining the alignment of an embodiment of the present invention, the tire radial height being H defined as the radial distance between the radially innermost point of the tire mounted on the rim and the radially outermost point of the crown, the radial height of the apex being KA, the radial height of the upper end point of the rubber reinforcement being KB, and the radial height of the upper end point of the bead filler being KC; the radial height of the lower end point of the seam allowance protecting glue is KD; wherein KA is more than or equal to 7% and less than or equal to 15% of H, KB is less than or equal to 40% of H, KC is more than or equal to 20% and less than or equal to 35% of H, and KD is more than or equal to 18% and less than or equal to 30% of H.
According to the first concept of the present application, the rubber reinforcement is added between the sidewall, the carcass reinforcement and the bead, the rubber reinforcement is arranged between the carcass reinforcement and the sidewall, and the rubber reinforcement is formed along the bead circumferential direction, the rubber reinforcement connects the apex, the sidewall rubber, the bead filler and the carcass reinforcement together, increasing the connection strength thereof.
According to a second concept of the present application, the radial height of the tire is H, the radial height of the apex is KA, the radial height of the upper end point of the rubber reinforcement is KB, and the radial height of the upper end point of the bead filler is KC; the radial height of the lower end point of the seam allowance protecting glue is KD; the tire inner structure is reasonably designed, so that the rolling resistance of the tire is reduced, and the problems of wear resistance, grip, safety and the like of the tire are also considered.
According to a third concept of the present application, the rubber reinforcement is made of a rubber mixture having an elastic modulus at 60 ℃ of E' a viscous modulus at 60 ℃ of E "; wherein E is less than or equal to 0.15 × E '-0.4 MPa, the loss factor E/E' value of the rubber mixture at 60 ℃ is less than or equal to 0.05, and the low-heat-generation rubber material is adopted to improve the integral connection stability of the tire and improve the rolling resistance performance of the tire.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种轮胎