The invention relates to the technical field of tires, and discloses an ultra-high-speed tire which comprises a tire crown, a tire shoulder, a tire sidewall and a tire bead, on the cross section of the tire, in the direction from the center of the tire crown to the end point of one side of the tire crown, the contour of the tire crown comprises at least three sections of arcs, the radiuses of the three sections of arcs are TR1, TR2 and TR3 in sequence, and by configuring the radiuses of the three sections of arcs, the contact pressure between a tire shoulder part and the ground is lower than the contact pressure between the center of the tire crown and the ground: TR1 > TR2 > TR3, TR2 is 80%-90% of TR1, and TR3 is 10%-15% of TR1; the sidewall comprises an upper sidewall arc positioned at the upper part and a lower sidewall arc positioned at the lower part; the radius R1 of the upper sidewall arc and the radius R2 of the lower sidewall arc meet the condition that R1-R2 is more than 20 and less than or equal to 50; the pressure difference value between the upper tire side and the lower tire side of the tire blank and the contact pressure difference value between the upper tire side and the lower tire side of the tire blank and the capsule during vulcanization can be reduced, stress and strain are dispersed, stress is uniform, rubber flow is more balanced, high-speed uniformity of the tire is improved, fluctuation of radial force and axial force is reduced, and high-speed stability of the tire is improved.

    本发明涉及轮胎技术领域,公开了一种超高速轮胎,包括胎冠、胎肩、胎侧、胎圈;在轮胎截面上,沿着胎冠中心到胎冠一侧端点的方向上,胎冠轮廓包括至少三段圆弧,且三段圆弧的半径依次为TR1、TR2、TR3,通过配置三段圆弧的半径使得胎肩部位与地面的接触压力低于胎冠中心与地面的接触压力:TR1>TR2>TR3,TR2为TR1的80%~90%,TR3为TR1的10%~15%;胎侧包括位于上部的上胎侧弧和位于下部的下胎侧弧,上胎侧弧半径R1与下胎侧弧半径R2满足:20<|R1‑R2|≤50;有利于缩小胎胚的上、下胎侧在硫化时与胶囊接触的压力差值,使得应力及应变分散,受力均匀,且胶料流动更均衡,有利于提升轮胎的高速均匀性,降低径向力和轴向力的波动,提升轮胎的高速稳定性。


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    Titel :

    Ultrahigh-speed tire


    Weitere Titelangaben:

    一种超高速轮胎


    Beteiligte:
    GAO NAN (Autor:in) / ZHEN SUXIA (Autor:in) / LI CUI (Autor:in) / SONG ENLEI (Autor:in) / YU ZHIWEI (Autor:in)

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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