The invention relates to the field of engineering machinery, and provides an energy-saving engineering machinery working arm lifting device which comprises a bracket mechanism, the bracket mechanism comprises an upper cross beam and a base, a plurality of sets of hydraulic lifting mechanisms are arranged on the upper surface of the base, the hydraulic lifting mechanisms are connected with a hydraulic system, and the hydraulic system is connected with a luffing mechanism. An energy accumulator is arranged in the hydraulic system and can recover energy of the hydraulic lifting mechanism, and the recovered energy is used for the hydraulic lifting mechanism and the luffing mechanism. When the engineering machinery is normally folded, gravitational potential energy generated when the working arm is put down on the bracket mechanism can be recycled and stored in the energy accumulator, the energy in the energy accumulator is used for driving the luffing mechanism to lift the working arm when needed, other hoisting equipment does not need to be used, and certain convenience is provided for maintenance work.
本申请涉及工程机械领域,提供了一种节能型工程机械工作臂托举装置,包括托架机构,所述托架机构包括上横梁、底座,所述底座的上表面设置有多组液压托举机构,所述液压托举机构的连接有液压系统,所述液压系统连接有变幅机构。所述液压系统的内部设置有蓄能器,所述蓄能器能将液压托举机构的能量进行回收,回收的能量用于液压托举机构、变幅机构。本发明能在工程机械正常收车操作时,将工作臂下放于托架机构上产生的重力势能进行回收并存储在蓄能器内,且在需要时使用蓄能器内的能量驱动变幅机构抬起工作臂,无需使用其他起重设备,为维修工作提供了一定便利性。
Energy-saving engineering machinery working arm lifting device
一种节能型工程机械工作臂托举装置
2024-01-26
Patent
Electronic Resource
Chinese
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