three-arm drilling jumbo Optimization and Simulation Analysis on Boom Mechanism and Hydraulic System of a Three⁃arm Rock Drilling Jumbo The three⁃arm drilling jumbo is specialized equipment for hard rock tunnel construction using the drill⁃and⁃blast method. Its boom system is crucial for the extensive operational range of the end drill. Addressing the issues of easy vibration and large deformation in the boom system of the
drilling jumbo Analyse and Dispose of Motor Contactor Burnout Frequently in Drilling-jumbo Water Pump By processing a trouble of motor contactor burnout frequently in drilling-jumbo water pump, introduce the effect of water way system by water-hammer, and analyze how to avoid
