The invention discloses a high-dynamic-static-stiffness-ratio liquid composite joint which comprises a mandrel with a mandrel ball in the middle, a rubber layer vulcanized and bonded around the mandrel ball, and an inner sleeve body vulcanized and bonded to the rubber layer on the periphery of the rubber layer. A front cavity and a rear cavity of which the cavity bottoms and the cavity peripheral walls are rubber layers are respectively arranged in the inner sleeve body on the front side and the rear side of the liquid composite node; a runner communicated with the front cavity and the rear cavity is arranged on the mandrel ball, and the front cavity, the rear cavity and the runner are filled with liquid; the middle of the front cavity and the middle of the rear cavity are large-rigidity areas, the two side ends of the bottoms of the front cavity and the rear cavity sink in the radial direction to form a left side pressing groove and a right side pressing groove respectively, and the area where the left side pressing groove is located and the area where the right side pressing groove is located are a left small-rigidity area and a right small-rigidity area respectively. Left flow limiting protrusions inserted into the left side pressing groove and the right side pressing groove are arranged on the inner walls of the left side and the right side of the inner sleeve body respectively, and flow sections between the large-rigidity area and the left small-rigidity area and between the large-rigidity area and the right small-rigidity area are reduced through the left flow limiting protrusions respectively.

    本发明公开了一种大动静刚度比液体复合节点,包括中部具有芯轴球的芯轴、环绕芯轴球硫化粘接的橡胶层、在橡胶层外周与橡胶层硫化粘接的内套体,在液体复合节点的前后两侧的内套体内分别设置腔底和腔周壁为橡胶层的前型腔和后型腔;在芯轴球上设有连通前型腔和后型腔的流道,在前型腔、后型腔和流道内充满液体;所述前型腔和后型腔的中部为大刚度区,二者腔底两侧端分别作径向沉落形成左侧压槽和右侧压槽,所述左侧压槽所在区域和右侧压槽所在区域分别为左小刚度区和右小刚度区;在内套体左右两侧内壁分别设有插入左侧压槽和右侧压槽的左限流凸起,由左限流凸起分别减小大刚度区与左小刚度区和右小刚度区之间的流量截面。


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    Title :

    Liquid composite node with large dynamic and static stiffness ratio


    Additional title:

    一种大动静刚度比液体复合节点


    Contributors:
    ZHOU BO (author) / LUO JUN (author) / LIN LITIAN (author) / CHEN JUNHUI (author) / TANG YUNLUN (author) / ZHANG YUXIANG (author) / WANG FENGYU (author) / ZENG XIANHUI (author) / ZHONG WEI (author) / ZHOU JUAN (author)

    Publication date :

    2024-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16F SPRINGS , Federn / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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