The invention discloses a hydraulic power unit suitable for an electro-hydraulic switch machine. The hydraulic power unit comprises a pump valve assembly and an oil cylinder, the pump valve assembly comprises an oil pump, a first hydraulic control reversing valve and a second hydraulic control reversing valve. The first hydraulic control reversing valve is connected between the first chamber of the oil cylinder and the oil pump through a hydraulic pipeline; the second hydraulic control reversing valve is connected between the second chamber of the oil cylinder and the oil pump through a hydraulic pipeline; when the oil pump is in a non-working state, the first cavity of the oil cylinder is in fluid communication with the second cavity of the oil cylinder through the first hydraulic control reversing valve and the second hydraulic control reversing valve, the oil cylinder is in a pressure balance state, and the electro-hydraulic switch machine can be manually operated; when the oil pump is in a first working state, the oil cylinder moves towards a first direction; and when the oil pump is in a second working state, the oil cylinder moves towards a second direction different from the first direction.

    一种适用于电液转辙机的液压动力单元,所述液压动力单元包括泵阀组件和油缸;泵阀组件包括油泵、第一液控换向阀和第二液控换向阀;第一液控换向阀通过液压管线连接在油缸的第一腔室和油泵之间;第二液控换向阀通过液压管线连接在油缸的第二腔室和油泵之间;在油泵处于非工作状态时,油缸的第一腔室通过第一液控换向阀和第二液控换向阀与油缸的第二腔室流体导通,油缸处于压力平衡状态,电液转辙机能够被手动操作;在油泵处于第一工作状态时,油缸朝向第一方向运动;在油泵处于第二工作状态时,油缸朝向与第一方向不同的第二方向运动。


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    Titel :

    Hydraulic power unit suitable for electro-hydraulic switch machine


    Weitere Titelangaben:

    一种适用于电液转辙机的液压动力单元


    Beteiligte:
    LICENSING (Autor:in) / YANG SHUREN (Autor:in) / LIU SHANGCHAO (Autor:in) / LI JI (Autor:in) / YANG WENMENG (Autor:in) / MA JINGWEN (Autor:in) / LIU ZHENHUA (Autor:in)

    Erscheinungsdatum :

    2023-06-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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