The invention relates to the field of hydraulic pressure, in particular to a novel hydraulic assembly for electro-hydraulic switching, which comprises a hydraulic power unit A and a switching locking oil cylinder unit B. The hydraulic power unit A comprises a hydraulic oil tank, a motor, an oil suction one-way valve, an oil suction filter, a bidirectional external gear pump, an integrated cartridge overflow valve and a pressure measuring quick connector. The switching and locking oil cylinder unit B comprises an actuating rod oil cylinder and a locking oil cylinder; an oil cylinder in a hydraulic assembly of the electro-hydraulic switch machine adopts a structure that a locking oil cylinder is interlocked on an actuating rod oil cylinder in parallel, and piston rods of the locking oil cylinder are connected with a left flange and a right flange respectively and are turned over by 180 degrees when being symmetrically designed and assembled; the locking oil cylinder piston rod connecting flanges at the two ends and the locking oil cylinder piston rod are sealed through U-shaped sealing rings; the parallel connection structure of the actuating rod oil cylinder and the locking oil cylinder is adopted, and compared with an existing hydraulic assembly in the market, the same-stroke hydraulic assembly is small in size, compact in structure and small in size.

    本发明涉及液压领域,尤其涉及一种新型的电液转辙用液压总成,包括液压动力单元A和转换锁闭油缸单元B,液压动力单元A包括液压油箱、电机、吸油单向阀、吸油过滤器、双向外啮合齿轮泵、集成式插装溢流阀和测压快速接头,转换锁闭油缸单元B包括动作杆油缸和锁闭油缸;所述电液转辙机液压总成中油缸采用动作杆油缸上并联锁闭油缸结构,锁闭油缸活塞杆连接法兰左与右各一个,对称设计装配时翻转180°;两端锁闭油缸活塞杆连接法兰与锁闭油缸活塞杆采用U型密封圈密封;活塞杆与锁闭油缸缸体通过锁闭油缸浮动套密封,本发明采用动作杆油缸与锁闭油缸并联结构,同行程液压总成比市场现有尺寸小,结构紧凑,体积减小。


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    Title :

    Novel hydraulic assembly for electro-hydraulic switch machine


    Additional title:

    一种新型的电液转辙机用液压总成


    Contributors:
    KUANG MAOCUI (author) / KUI KAITENG (author) / CHENG YANFEI (author) / LI JINHAI (author) / WANG HONGLIANG (author)

    Publication date :

    2023-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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