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针对耗能大户挖掘机在硬地面、矿山碎石地面、山石地震地面等复杂地面施工中的低效率、高耗能问题,研究开发以振动冲击学为理论基础、在核心技术上具有自主知识产权的液压控制伺服阀和液压伺服控制系统以及振动式铲斗等高效节能液控振动挖掘机关键技术,将传统的静态挖掘力变革为动态瞬间大的冲击挖掘力,实现高效节能的振动挖掘方式。该振动挖掘方式与不振动挖掘方式相比,将减少挖掘阻力和提高挖掘工效25%以上、节能20%左右,推动挖掘机产业向高效、节能方面发展。
In view of the low efficiency and high energy consumption problems of large energy-consuming excavators in complex ground construction such as hard ground, mine gravel ground and rock earthquake ground, the research and development is based on the theory of vibration impact and has independent intellectual property rights in the core technology Hydraulic control servo valve and hydraulic servo control system as well as vibration-type buckets and other key technologies of energy-efficient liquid-controlled hydraulic excavators, the traditional static excavation force into a dynamic impact of instantaneous large digging force to achieve energy efficient vibration mining methods. Compared with the non-vibration excavation method, the vibration excavation method will reduce the excavation resistance and improve the excavation work efficiency by more than 25%, save energy by about 20%, and promote the excavator industry to develop efficiently and economically.