60 / 2023-12-28 20:20:11

Efficient Regeneration System for Potential Rnergy of Large Excavator Boom

Large - scale hydraulic excavator, potential energy recovery, pump controlled direct drive, virtual prototype

   An effective regeneration system for the potential energy of large excavator moving booms is proposed in order to achieve energy recovery and utilization of heavy-duty mechanical booms. This system targets the issues of massive potential energy waste and exhaust emissions during the descent process of heavy mechanical booms in large mining hydraulic excavators. First, a boom potential energy regeneration system driven by an electro-hydraulic hybrid was built, and the electro-hydraulic system's construction and operation were explained. Second, a virtual prototype model of the robotic boom experimental platform was constructed based on the AMESim - Simcenter 3D Motion joint simulation platform, and the system parameters were matched and the operating rules were examined; In order to obtain the energy efficiency curve of the system during the operation of the robotic boom, experiments on energy recovery and utilization of the lower robotic boom were conducted under various working conditions. Ultimately, a high-efficiency regeneration experimental platform for the potential energy of the robotic boom was built. The results show that under no-load and heavy-duty conditions, compared with the original system, the system energy consumption and installed power are effectively reduced. This system effectively recovers and uses the potential energy of huge excavator booms in a constrained amount of time and area by integrating the benefits of hybrid drive, pump controlled direct drive, flow regeneration, and other technologies. It can serve as a guide for heavy-duty robotic booms' prospective energy recovery and utilization technologies.