Drilling rig unit with a through spindle and hydraulic chuck for the construction of horizontal and directional wells from underground mine workings

摘要

The drilling unit drilling rig with a through spindle with hydraulic chuck for the construction of horizontal and directional wells from underground mining relates to the field of mining and can be used for a wide range of problems solved by drilling method by constructing exploration, spillway, ventilation and other wells appointments from underground mine workings. Creating a universal rig with enhanced functionality that enables to drill horizontal and directional wells with the rise and descent of the drill candles, consisting of several sections of the drill string, through the entrance shaft rotator drilling unit with the capture of the drill string hydraulic chuck, and for drilling downhole with coring use shells with movable core receiver (SSC) has allowed to increase productivity by 25-30%. The achievement of such results was made possible by the creation of a drilling rig with a through spindle that permits passage through the main sizes of drill rods used in exploration drilling (dmax = 95 mm), and the creation of a hydraulic chuck, capable to carry out the seizure of the drill string and pass it axial forces and the torque developed by the drilling rig.