Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Energy-saving system of hydraulic excavator
When a movable arm oil cylinder descends, a movable arm energy recovery device is used for recovering redundant hydraulic oil in a large cavity of the movable arm oil cylinder, and the situation that when a movable arm of the hydraulic excavator descends, gravitational potential energy of the movable arm is converted into hydraulic energy through the movable arm oil cylinder, and the hydraulic energy is wasted is avoided. And then the energy is converted into heat energy through throttling ports of a hydraulic system of the hydraulic excavator to be dissipated and wasted, so that the aim of recovering the descending energy of the movable arm is fulfilled. When the rotary motor is started, the rotary energy recovery device is used for recovering redundant flow in a cavity of the rotary motor, and rotary starting overflow prevention is achieved. Or when the rotary motor is braked, excess energy generated when the rotary motor is braked is recycled through the rotary energy recycling device, and recycling of the rotary braking energy is achieved.
本发明公开了一种液压挖掘机节能系统，动臂油缸下降时，利用动臂能量回收装置回收动臂油缸大腔内多余的液压油，避免液压挖掘机的动臂下放时动臂的重力势能通过动臂油缸转换为液压能后，再通过液压挖掘机的液压系统的各节流口转化为热能逸散浪费，达到对动臂下降能量回收的目的。回转马达启动时，利用回转能量回收装置回收回转马达腔室内多余的流量，实现回转启动防溢流。或者，当回转马达制动时，利用回转能量回收装置回收回转马达制动时的多余能量，实现对回转制动能量的回收。
Energy-saving system of hydraulic excavator
When a movable arm oil cylinder descends, a movable arm energy recovery device is used for recovering redundant hydraulic oil in a large cavity of the movable arm oil cylinder, and the situation that when a movable arm of the hydraulic excavator descends, gravitational potential energy of the movable arm is converted into hydraulic energy through the movable arm oil cylinder, and the hydraulic energy is wasted is avoided. And then the energy is converted into heat energy through throttling ports of a hydraulic system of the hydraulic excavator to be dissipated and wasted, so that the aim of recovering the descending energy of the movable arm is fulfilled. When the rotary motor is started, the rotary energy recovery device is used for recovering redundant flow in a cavity of the rotary motor, and rotary starting overflow prevention is achieved. Or when the rotary motor is braked, excess energy generated when the rotary motor is braked is recycled through the rotary energy recycling device, and recycling of the rotary braking energy is achieved.
本发明公开了一种液压挖掘机节能系统，动臂油缸下降时，利用动臂能量回收装置回收动臂油缸大腔内多余的液压油，避免液压挖掘机的动臂下放时动臂的重力势能通过动臂油缸转换为液压能后，再通过液压挖掘机的液压系统的各节流口转化为热能逸散浪费，达到对动臂下降能量回收的目的。回转马达启动时，利用回转能量回收装置回收回转马达腔室内多余的流量，实现回转启动防溢流。或者，当回转马达制动时，利用回转能量回收装置回收回转马达制动时的多余能量，实现对回转制动能量的回收。
Energy-saving system of hydraulic excavator
一种液压挖掘机节能系统
LU HUIPING (Autor:in) / ZHANG JINGE (Autor:in) / ZHANG HAO (Autor:in) / GUAN WEI (Autor:in) / WANG RUNHAO (Autor:in)
09.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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