FIELD: mechanisms.
SUBSTANCE: group of inventions relates to electric drive, intended to actuate coke drum opening and closing valve. Electric drive comprises actuating element, which contains housing made with possibility of connection with coke drum opening and closing valve cover and with possibility of connection with reduction gearbox. Main threaded shaft is located inside housing and attached to reduction gearbox. Planetary component comprises housing part, which includes main threaded shaft, and shaft, which passes from housing part and also includes main threaded shaft. At that, shaft is made with possibility of connection with opening or closing valve gate. Housing part contains threaded rollers, located around and contacting with main threaded shaft so, that when main thread shaft rotates, interaction between main threaded shaft thread and threaded rollers thread causes planetary component linear displacement inside housing and thus causes linear movement of gate. Reduction gearbox is connected with drive element and with limit torque coupling. Electric motor is installed on drive element housing. At that, electric motor is connected with reduction gearbox via limit torque coupling.
EFFECT: group of inventions is aimed at enabling power and reliability, sufficient for use in coke drum opening and closing valves.
12 cl, 5 dwg
