The invention discloses an emergency valve group, a threaded plug-in shuttle valve, a threaded plug-in one-way valve, a threaded plug-in throttle valve, an embedded threaded damping plug and a threaded plug-in balance cone valve which are integrated according to an emergency release principle for emergency release of a crane. Six oil ports are formed in the valve group, and the oil port P is an emergency oil inlet and is in butt joint with an oil outlet of the manual pump; the oil port L is a valve group oil drainage port and is communicated with an oil tank; the oil port C is a brake pressure oil supply port and is in butt joint with a brake; the oil port BR is a brake pressure oil control port and is connected with a crane lifting control module; and the oil ports A1 and B1 are oil supply ports of a hoisting winch motor of the crane and are connected with branches of a motor oil supply path. The valve group has the beneficial effects that the valve group integrates the emergency release control function of the hoisting winch of the crane, so that the stability and safety of emergency release of the crane in an emergency are ensured; the invention provides an effective solution for realizing safe emergency release of the hoisting winch of the hydraulic crane.

    本发明揭示了一种由用于起重机应急释放的应急释放原理所集成的应急阀组,螺纹插装式梭阀、螺纹插装式单向阀、螺纹插装式节流阀、内嵌式螺纹阻尼塞、螺纹插装式平衡锥阀。阀组上共有6个油口,油口P是应急油进油口,与手动泵出油口对接;油口L是阀组泄油口,连通油箱;油口C是刹车压力油供给口,与刹车对接;油口BR是刹车压力油控制口,与起重机起升控制模块连接;油口A1、B1是起重机起升绞车马达供给油口,与马达供给油路的支路连接。本发明的有益效果在于:阀组集成了起重机起升绞车应急释放控制功能,保证了起重机在紧急情况下进行应急释放的稳定性和安全性;本发明为实现液压起重机起升绞车的安全应急释放提供了一种有效的解决方法。


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    Title :

    Hydraulic integrated emergency valve group for emergency release of crane


    Additional title:

    一种用于起重机应急释放的液压集成应急阀组


    Contributors:
    LIU DEJIE (author) / MENG QINGWEN (author) / CHEN FEI (author) / CHENG XISONG (author)

    Publication date :

    2023-01-10


    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 / B66D Haspeln , CAPSTANS



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