FIELD: gas and oil industry. SUBSTANCE: proposed drive contains series-connected electropneumatic control device including explosionproof chamber, electromagnets, pneumatic valves, gas flow regulators, limit switches, permanent magnets coupled with input shaft of control device, reversible jet motor, mechanical gear train including manual operator, slotted-link screw turning mechanism containing link, lead screw installed on bearings in turning mechanism housing, sliding nut connected by thread with lead screw and arranged inside carrier connected for movement with link and housing of turning mechanism, drive output shaft rigidly connected with link and device to absorb drive kinetic energy. Mechanical gear train contains eccentric gear train whose input shaft is coupled through gears with shaft of jet motor, and output shaft is coupled with lead screw of turning mechanism. EFFECT: improved reliability. 22 cl, 19 dwg
