The invention provides an overload protection method for a hydraulic oil circuit, which comprises the following steps of: recording full-load oil pressure values of a winch system in full-load operation under different opening degrees of a throttle valve; therefore, the oil pressure value of more than 1.1 times of overload can be calculated under the current full-load oil pressure value, and the calculation is accurate; the throttle valve amplifies the oil pressure of the oil inlet pipeline in the oil pump and multi-way valve group area, so that the value between the full-load oil pressure value and the overload oil pressure value is increased, and the pressure switch can accurately detect the value difference between the full-load oil pressure value and the overload oil pressure value; therefore, the pressure switch can accurately detect whether the winch system is overloaded or not.

    本发明提供一种液压油路的超载保护方法,对记录节流阀在不同开度下,绞车系统满载运行的满载油压数值;这样在当前的满载油压数值下能计算出超载1.1倍以上的油压数值,计算准确;节流阀放大进油管路在油泵与多路阀组区域的油压,使得满载油压数值与超载油压数值之间的增大,进而压力开关能准确检测出满载油压数值与超载油压数值之间的数值差异;从而压力开关能准确检测出绞车系统是否有超载。


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    Title :

    Overload protection method for hydraulic oil circuit


    Additional title:

    一种液压油路的超载保护方法


    Contributors:
    LI XINXIAN (author) / TANI BUNPEI (author) / ZHANG FUJIANG (author) / AN WANPING (author) / LUO GUOSHAN (author) / WU TIAN'AN (author) / HUANG ZUFU (author)

    Publication date :

    2024-04-16


    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 / B66C Krane , CRANES



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