The invention discloses a semi-automatic liquid filling valve type forklift power driving braking system. The semi-automatic liquid filling valve type forklift power driving braking system comprises afirst oil pump, a steering oil path, a steering mechanism, a shuttle valve, an energy accumulator, a second oil pump, a braking oil path and a braking mechanism, wherein the first oil pump is connected with the steering mechanism through the steering oil path, the energy accumulator is connected with the steering oil path through one oil inlet A of the shuttle valve and is connected with the braking oil path through another oil inlet B, the second oil pump is connected with the braking mechanism through the braking oil path, when the energy accumulator is in a low-pressure state and a driverstamps a braking pedal and operates a steering wheel, hydraulic oil of the steering oil path is filled to the energy accumulator through the shuttle valve oil inlet A, and the hydraulic oil of the braking oil path is filled to the energy accumulator through the shuttle valve oil inlet B until the energy accumulator is in a full state. According to the semi-automatic liquid filling valve type forklift power driving braking system, by means of the shuttle valve, in addition to energy accumulator liquid filling is performed when the braking pedal is stampd, the energy accumulator liquid filling also can be performed when the steering wheel is turned, and then the forklift braking safety is improved.

    本发明公开了一种半自动充液阀式叉车动力行车制动系统,包括:第一油泵、转向油路、转向机构、梭阀、蓄能器、第二油泵、制动油路和制动机构,第一油泵通过转向油路与转向机构连接,蓄能器通过梭阀的一个进油口A与转向油路连接,通过另一个进油口B与制动油路连接,第二油泵通过制动油路与制动机构连接,当蓄能器处于低压状态时,驾驶员踩踏制动踏板,操作方向盘时,转向油路的液压油通过梭阀进油口A给蓄能器充液,制动油路的液压油通过梭阀进油口B给蓄能器充液,直到蓄能器处于充满状态。通过梭阀,除了踩下制动踏板的时候蓄能器充液,当打方向盘的时候,蓄能器也可以充液,进而提高了叉车的制动安全性。


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    Title :

    Semi-automatic liquid filling valve type forklift power driving braking system


    Additional title:

    一种半自动充液阀式叉车动力行车制动系统


    Contributors:
    LIU ZHEN (author) / SONG YONGGUI (author) / LI ZONGJIE (author)

    Publication date :

    2020-06-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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