Structural principle of fully hydraulic core exploration drilling rig

The structural principle of the fully hydraulic core exploration drilling rig mainly involves the integrated arrangement of fully hydraulic drive, steel track walking, combined mast, power machine, main and auxiliary winches, mud pump, etc. The structure is compact, and the centralized control is flexible and convenient. The hydraulic system adopts pilot control, load sensing, electro-hydraulic proportional joint centralized operation control, and can be equipped with a supporting device. The power head adopts a double speed structure of oil cylinder chain for feeding and lifting, with a lifting force of 295kN and a feeding force of 152kN. The design features of this drilling rig include modular assembly, with each component having independent working characteristics and interchangeable parts, forming different combinations with a high degree of universality. The main system adopts a load feedback variable system, which can be graded and variable speed; The auxiliary system adopts a constant pressure variable system, and the mud pump system adopts a quantitative system. The main winch control system automatically releases the rope during the drilling process through the main winch, which is controlled by the built-in static hydraulic brake and lower control valve. The drilling and feeding system absorbs the characteristics of domestic vertical axis core drilling machines, and sets functions such as weighing, pressurization, depressurization, rapid lifting, and rapid feeding, making up for the shortcomings of the drilling machine name and depressurization drilling working status. The design of the high-speed power head is achieved through the variable speed of the hydraulic driven high-speed power head and lubrication method; The gearbox is a four gear transmission; The chuck adopts a spring clamped hydraulic release structure, with a maximum edge hole diameter of 117mm