Continuous rotary drilling machine, of the type in which a drill is carried at the end of a hollow shaft, optionally formed by several sections joined together threaded, whose shaft is fixed to a suitable part of the machine by jaw to rotate and move longitudinally , and whose machine is characterized by having a body itself that incorporates the motor and the other mechanisms for the indicated movements of the bit, whose body is solidary, by means of a horizontal axis of rotation, of a couple of bushings mounted on as many columns -guide vertical, along which can slide, providing tightening means, to immobilize in desired positions both the sliding of the bushings and the rotation of horizontal axis, the aforementioned columns being mounted on the platform that serves as the basis for the machine, on whose platform the appropriate translational and interlocking means are arranged, as well as an adequate surface for reception of balancing weights for the case of adopting work positions in which the center of gravity is unfavorably located, also arranging elastic means that, in collaboration with a suspension cable that is rolled or unrolled on a drum, compensate the weight of the moving part on the vertical guides. (Machine-translation by Google Translate, not legally binding)
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