A longitudinal variable-stiffness liquid rubber composite conical spring comprises a mandrel and a first bush which are coaxially arranged, a conical rubber body is connected between the mandrel and the first bush in a vulcanized mode, at least one pair of hollow hydraulic cavities is formed in the rubber body, the hydraulic cavities are symmetrically distributed relative to the mandrel in the longitudinal direction, and a liquid flow channel is communicated between the opposite hydraulic cavities. At least one hydraulic cavity communicates with a filling opening communicating with the outside, and when the liquid rubber composite conical spring is subjected to longitudinal load, the hydraulic cavities are compressed, so that liquid in the hydraulic cavities flows through the liquid flow channels, and the longitudinal rigidity of the liquid rubber composite conical spring is changed. The conical spring provided by the invention has lower longitudinal static rigidity under a low-frequency load and higher static rigidity under a high-frequency load when being subjected to a longitudinal load, so that the high dynamic-static ratio of the longitudinal rigidity is realized, and meanwhile, the influence of the vertical rigidity and the transverse rigidity of the conical spring is smaller under the improvement and optimization of the conical spring.

    一种纵向变刚度液体橡胶复合锥形簧,包括同轴设置的芯轴和衬套一,在芯轴和衬套一之间硫化连接有锥型的橡胶体,在橡胶体内具有至少一对中空的液压腔室,所述液压腔室相对芯轴沿纵向对称分布,相对的液压腔室之间连通液体流道,至少一个液压腔室连通有和外部连通的灌注口,当液体橡胶复合锥形簧受到纵向载荷时,液压腔室将被压缩使其内部液体通过液体流道流动而改变液体橡胶复合锥形簧的纵向刚度。本发明提出的锥形簧,在受到纵向载荷时,低频载荷下具有较低的纵向静刚度,高频载荷下则具有较高静刚度,实现了纵向刚度的高动静比,同时在本发明的改进优化下其垂向刚度和横向刚度影响较小。


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    Title :

    Longitudinal variable-stiffness liquid rubber composite conical spring, liquid filling method, primary spring and railway vehicle


    Additional title:

    一种纵向变刚度液体橡胶复合锥形簧、灌液方法、一系簧及轨道车辆


    Contributors:
    LUO JUN (author) / CHENG HAITAO (author) / CHEN JUNHUI (author) / LIN SHENG (author) / TANG YUNLUN (author) / LI JING (author) / ZHANG YUXIANG (author) / CHEN CANHUI (author) / ZUO BINHUAI (author) / ZHOU JUAN (author)

    Publication date :

    2024-08-20


    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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