The invention relates to an aerial work platform comprising a chassis, a basket, a lifting structure moved by hydraulic actuators (41, 42), and a hydraulic system (S) controlled by a control unit (50) and comprising a circulation circuit (60), an electric motor pump (80) and a flow control device (90). In order to operate the controlled simultaneous movement of two different parts of the lifting structure in a simple and economical manner, the actuators are divided between a first and a second group (G1, G2), and the control unit determines a first target flow rate (Q1) as a function of the operator's actuation of one of the actuators of the first group, and determines a second target flow rate (Q2) as a function of the operator's actuation of one of the actuators of the second group. And determine a second target flow rate (Q2) as a function of an operator actuation of one of the second set of actuators, and control the motor pump at a delivery flow rate (QR) that is greater than or equal to the sum of the first target flow rate and the second target flow rate. Furthermore, the flow control device is controlled by the control unit to jointly send to the first group and the second group an adjustment ratio of the fluid delivered by the motor pump, a controlled flow rate (Q0) representing a sum of the first target flow rate and the second target flow rate, and then divide the adjustment ratio into two adjustment parts, and a second flow rate indicating the first target flow rate and the second target flow rate, respectively, and transmitted to the first group and the second group, respectively. The flow control device comprises a flow control device (91) and a flow distribution device (92) arranged downstream of the flow control device with respect to the flow delivered by the motor pump.

    本发明涉及高空作业平台,其包括底盘、吊篮、由液压致动器(41、42)移动的升降结构和液压系统(S),所述液压系统由控制单元(50)控制并包括循环回路(60)、电动马达泵(80)和流量控制装置(90)。为了以简单经济的方式操作升降结构的两个不同部分的受控同时移动,致动器在第一和第二组(G1、G2)之间划分,并且控制单元根据操作者对第一组致动器中一个的致动来确定第一目标流率(Q1),并根据操作者对第二组致动器中一个的致动来确定第二目标流率(Q2),以及以大于或等于第一目标流率和第二目标流率之和的输送流率(QR)控制马达泵。此外,流量控制装置由控制单元控制,以联合地向第一组和第二组发送由马达泵输送的流体的调节比例,表示等于第一目标流率和第二目标流率之和的受控流率(Q0),然后将该调节比例分成两个调整部分,分别表示第一目标流率和第二目标流率,并分别发送到第一组和第二组。流量控制装置包括流量控制设备(91)以及流量分配设备(92),相对于由马达泵输送的流量布置在流量控制设备下游。


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    Titel :

    Aerial work platform and method for controlling aerial work platform


    Weitere Titelangaben:

    高空作业平台和用于控制高空作业平台的方法


    Beteiligte:
    DESU DEEPAK (Autor:in)

    Erscheinungsdatum :

    2023-11-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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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