Oil-hydraulic control unit (1') comprising:- a pump (6) arranged for sending oil to a pressure unit (8) arranged to pressurize said oil and to send it through a hydraulic circuit towards at least one actuator (20) of a switch (10) of a railway track, said hydraulic circuit comprising preferentially a plurality of canals, the at least one actuator (20) being connected to at least one canal for being operated;- a control device (4) connected to said pump (6) and arranged for controlling the pump (6) based on an activation signal coming from a remote control unit (2) arranged for controlling switch operations of the switch (10);- a timing unit (12) arranged to send control signals to the remote control unit (2) representative of the correct operation of the oil-hydraulic control unit (1');characterized in that the pressure unit (8) comprises at least two valves (16a, 16b) for each group of canals intended to be connected to the at least one actuator (20), the valves (16a, 16b) being arranged so that when a first valve (16a) breaks, a second valve (16b) starts sending the oil flowing in the group of canals towards a reservoir of the oil-hydraulic control unit (1') so that the pressure of the oil going to the at least one actuator (20) decreases, thus regulating the pressure of the oil flowing into said group of canals.


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    Title :

    МАСЛЯНЫЙ ГИДРАВЛИЧЕСКИЙ БЛОК УПРАВЛЕНИЯ СТРЕЛКАМИ ЖЕЛЕЗНОДОРОЖНОГО ПУТИ И СПОСОБ ВЫПОЛНЕНИЯ ПРОВЕРКИ БЕЗОПАСНОСТИ НА МАСЛЯНОМ ГИДРАВЛИЧЕСКОМ БЛОКЕ УПРАВЛЕНИЯ


    Publication date :

    2020-10-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Russian


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC