The invention relates to the technical field of tire manufacturing, in particular to a tire noise reduction system. The tire noise reduction system comprises a pneumatic tire with a cavity, the pneumatic tire is provided with a tread portion, a tire bead portion and a tire side portion, the inner wall of the tread portion is provided with strip-shaped sound-absorbing cotton in a bonding mode through an adhesive, the strip-shaped sound-absorbing cotton is provided with more than one continuous annular hole in the circumferential direction, and the strip-shaped sound-absorbing cotton is connected end to end. The annular holes are connected end to end to form an annular large silencing cavity which is not communicated with the inner cavity of the tire; the strip-shaped sound-absorbing cotton is made of a spongy porous material prepared by foaming a high polymer material, the apparent density is 5kg/m<3>-50kg/m<3>, and the side walls of the annular holes are communicated with the multiple holes of the strip-shaped sound-absorbing cotton, so that the large annular sound-absorbing cavity is communicated with the multiple porous sound-absorbing cavities. Through the implementation of the system, the design that the large main body noise reduction cavity is matched with countless small noise reduction cavities can inhibit the cavity noise in a wider frequency range.

    本申请涉及轮胎制造技术领域,尤其涉及一种轮胎噪音降低系统。一种轮胎噪音降低系统,包括具有空腔的充气轮胎,充气轮胎具有胎面部、胎圈部、胎侧部,所述胎面部的内壁通过胶黏剂粘结设置有带状吸音棉,带状吸音棉沿圆周方向设置有一个以上连续的环形孔,带状吸音棉首尾相连接,环形孔也首尾相连形成一个不与轮胎内腔相通的环形大消音腔;所述的带状吸音棉为高分子材料发泡制得海绵状多孔材料,表观密度在5kg/m3‑50kg/m3,环形孔的侧壁与带状吸音棉的多孔相连通,使环形大消音腔和大量多孔消音腔相连通。通过本发明的实施发现,这种大主体消音腔配合无数小的消音腔设计,可以抑制较宽频率范围下的空腔噪音。


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    Title :

    Tire noise reduction system


    Additional title:

    一种轮胎噪音降低系统


    Contributors:
    WANG DANLING (author) / LU XIAOQI (author) / BAI HAO (author) / HU DEBIN (author) / LIU HUI (author) / FANG DI (author)

    Publication date :

    2021-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand



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