蓄能器在液压挖掘机能量回收中的仿真研究

Research on Accumulator in Energy Regenerative System of Hydraulic Excavator Based on AMESim Simulation

液压挖掘机在工作过程中存在着较大的能量损失,其原因是其转台转动惯量大且需要频繁启动和制动,故而进行能量回收方面的研究有着较为重要的意义。针对液压挖掘机回转液压系统,采用蓄能器进行能量回收,并在转台反向启动时予以释放,以实现转台制动能量的回收和再利用。同时,对液压挖掘机能量回收系统中的蓄能器参数的选择进行了分析。在此基础上对节能方法的能量回收机理进行了分析,并利用AMESim软件进行了仿真试验,结果表明,该节能系统节能效果较为明显,液压挖掘机能耗得到了降低。

There lies large energy loss, among working process of the hydraulic excavator. Secondary regulation sys- tem has many advantages, such as high efficiency, good controllability, and can realize recycling and reusing the braking dynamic energy and geopotential energy of the load, to save energy. In this paper, aiming at hydraulic slew- ing system of the hydraulic excavator, the secondary regulation was applied to realize recycling and repurposing of braking energy of rotary table. In the base, the theory of energy regenerative of energy-saving technique was ana- lyzed. The simulation experiment was carried by AMESim, and the experimental result implied that energy-saving effect was obvious and energy loss was decreased.