DRILLING RIG Russian patent published in 2010 - IPC E21B1/00 E21B3/00 

FIELD: mining.

SUBSTANCE: drilling rig consists of jack column, of frame, of mechanism of advance, of boring head and rod holder, of control panel and drilling tool. Further the drilling rig is equipped with a rotator including a carriage. A self-braking reducer is connected with the carriage by means of lugs. The output shaft of the reducer is connected with the frame and is secured to the carriage by means of two guiding half-yokes. The said shaft is designed to freely rotate in the aperture formed with one of the guiding half-yokes and the carriage and to stop in the aperture formed with the second guiding half-yoke and the carriage. Also the reducer is fastened to the carriage in this way.

EFFECT: eliminating risk of rig turning over when it is installed on boring axle particularly at big angle; on a whole facilitating its safe operation, mechanising rig mounting and simplifying rig transporting at mountainous seats.

2 cl, 2 dwg