The invention relates to the field of aerial work machinery, and discloses a boom telescopic hydraulic system and an aerial work platform, the boom telescopic hydraulic system comprises a boom telescopic oil cylinder used for boom telescopic control, and an oil cylinder working oil way of the boom telescopic oil cylinder is internally provided with an oil cylinder control valve; the two-way main pump can be driven by the power generation motor to rotate forwards or reversely so as to pump oil towards the oil cylinder control valve or the hydraulic oil tank; the storage battery is electrically connected with the power generation motor; in the oil cylinder retraction stroke of the boom telescopic oil cylinder, return oil of the rodless cavity working oil way in the oil cylinder working oil way can drive the two-way main pump to rotate, and the power generation motor is driven to charge the storage battery. The forward and reverse rotation power generation motor, the two-way hydraulic pump, the oil suction rectifying valve set and the energy accumulator are applied, through logic control over an oil way, arm support retraction energy recovery at a certain angle is achieved, the system energy efficiency is improved, and oil liquid heating is reduced.
本申请涉及高空作业机械领域,公开了一种臂架伸缩液压系统和高空作业平台,臂架伸缩液压系统包括臂架伸缩油缸,用于臂架的伸缩控制,臂架伸缩油缸的油缸工作油路中设有油缸控制阀;发电电机和双向主泵,双向主泵能够由发电电机驱动正转或反转以朝向油缸控制阀或液压油箱泵油;以及蓄电池,与发电电机电连接;其中,在臂架伸缩油缸的油缸缩回行程中,油缸工作油路中的无杆腔工作油路的回油能够驱动双向主泵转动,并带动发电电机为蓄电池充电。本申请应用正反转发电电机、双向液压泵、吸油整流阀组及蓄能器,并通过对油路的逻辑控制,实现了一定角度下的臂架缩回能量回收,提高系统能效,减少油液发热。
Boom telescopic hydraulic system and aerial work platform
臂架伸缩液压系统和高空作业平台
2024-06-04
Patent
Electronic Resource
Chinese
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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