The invention belongs to the field of aerial work platforms, and discloses an electrically-driven aerial work platform and a hydraulic system thereof, and the hydraulic system comprises a loading hydraulic system, a variable-amplitude oil cylinder comprising a driving arm frame, a telescopic oil cylinder and a loading hydraulic pump for supplying oil to the variable-amplitude oil cylinder and the telescopic oil cylinder; the lower vehicle hydraulic system comprises a steering oil cylinder for driving the vehicle body to steer, a floating oil cylinder assembly and a lower vehicle hydraulic pump for supplying oil to the steering oil cylinder and the floating oil cylinder assembly; wherein the upper vehicle hydraulic system and the lower vehicle hydraulic system are mutually independent, and the rated displacement of the upper vehicle hydraulic pump is larger than that of the lower vehicle hydraulic pump. According to the hydraulic system, through independent distributed arrangement of the upper vehicle hydraulic system and the lower vehicle hydraulic system, the problem that in the prior art, a steering oil cylinder and a floating oil cylinder of a lower vehicle need high-pressure pumping oil of an upper vehicle hydraulic pump to be conveyed through a center rotating connector, so that pressure loss is large is well solved, energy consumption can be reduced, energy is saved, and efficiency is improved. And the requirements of energy conservation and emission reduction are met.
本申请属于高空作业平台领域,公开了一种电驱高空作业平台及其液压系统,液压系统包括上车液压系统,包括驱动臂架的变幅油缸、伸缩油缸以及为变幅油缸和伸缩油缸供油的上车液压泵;和下车液压系统,包括驱动车体转向的转向油缸、浮动油缸总成以及为转向油缸和浮动油缸总成供油的下车液压泵;其中,上车液压系统与下车液压系统相互独立,上车液压泵的额定排量大于下车液压泵的额定排量。本申请的液压系统通过上车液压系统、下车液压系统的独立分布式布置,很好地解决了现有技术中下车的转向油缸和浮动油缸需要上车液压泵的高压泵送油液通过中心回转接头传送而导致压损大等问题,可降低能耗,节能增效。满足节能减排需求。
Electrically-driven aerial work platform and hydraulic system thereof
电驱高空作业平台及其液压系统
2024-05-28
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 |
Aerial work platform and hydraulic control system thereof
European Patent Office | 2024
|