A longitudinal variable-stiffness single-layer liquid rubber straight flow channel 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 and is made of single-layer rubber, a second bush is further coaxially connected outside the first bush in a sleeved mode, at least one pair of hollow hydraulic cavities is formed in the rubber body, and the hydraulic cavities are communicated with the first bush and the second bush. The hydraulic cavities are symmetrically distributed relative to the central spindle in the longitudinal direction, the opposite hydraulic cavities are communicated with a liquid flow channel, and at least one hydraulic cavity is communicated with a filling opening communicated with the outside. And the hydraulic cavity is compressed, so that liquid in the hydraulic cavity flows through the liquid flow channel to change the longitudinal rigidity of the liquid rubber composite conical spring. 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.

    一种纵向变刚度单层液体橡胶直流道复合锥形簧,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,所述橡胶体为单层橡胶,在衬套一外还同轴套接衬套二,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 single-layer liquid rubber straight runner composite conical spring and liquid filling method


    Additional title:

    一种纵向变刚度单层液体橡胶直流道复合锥形簧及灌液方法


    Contributors:
    ZHAO BIN (author) / ZENG XIANHUI (author) / DENG MENGJUN (author) / LI JING (author) / LUO CHAN (author) / WANG TINGTING (author) / LIU TING (author) / CHENG HAITAO (author) / CHEN JUNHUI (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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