The invention belongs to the technical field of high-altitude operation, and discloses a variable-amplitude oil cylinder hydraulic system and a high-altitude operation machine. The hydraulic system comprises a variable-amplitude oil cylinder, and the variable-amplitude oil cylinder comprises a rodless cavity working oil way and a rod cavity working oil way which are both connected to a hydraulic oil tank; the two-way pump and the electromagnetic reversing valve are arranged in the rodless cavity working oil way in a series connection mode, the electromagnetic reversing valve is used for controlling the rodless cavity working oil way in an on-off mode, and the two-way pump is used for pumping hydraulic oil to a rodless cavity of the variable-amplitude oil cylinder through the electromagnetic reversing valve under the driving of the power generation motor or driving the power generation motor to generate power under the driving of oil return of the rodless cavity; and the electromagnetic switch valve is arranged in a first connecting oil way between the rodless cavity working oil way and the rod cavity working oil way. The system is simple in structure, and through combination and logic control of the rechargeable battery, the motor driver, the power generation motor, the two-way pump and the multiple electromagnetic valves, the rodless cavity oil return can drive the two-way pump to drive the power generation motor to generate power during boom variable-amplitude recycling, and energy recycling of boom variable-amplitude descending is achieved.

    本申请属于高空作业技术领域并公开了一种变幅油缸液压系统和高空作业机械,液压系统包括变幅油缸,包括均连接至液压油箱的无杆腔工作油路和有杆腔工作油路;双向泵和电磁换向阀,串联设置在无杆腔工作油路中,电磁换向阀用于通断控制无杆腔工作油路,双向泵用于在发电电机的驱动下通过电磁换向阀向变幅油缸的无杆腔泵送液压油或者在无杆腔的回油驱动下带动发电电机发电;电磁开关阀,设置在无杆腔、有杆腔工作油路之间的第一连接油路中。本申请的系统结构简单,通过可充电电池、电机驱动器、发电电机、双向泵以及多个电磁阀的组合及逻辑控制,可实现臂架变幅回收时,无杆腔回油驱动双向泵带动发电电机发电,实现臂架变幅下降的能量回收。


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    Title :

    Variable-amplitude oil cylinder hydraulic system and high-altitude operation machine


    Additional title:

    变幅油缸液压系统和高空作业机械


    Contributors:
    ZHANG BIN (author) / ZOU XUSHAO (author) / CAO JIARUI (author) / HE JIPENG (author) / XIAO CHENGFENG (author)

    Publication date :

    2024-08-16


    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 / 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



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