| 摘要 |
FIELD: machine building. ^ SUBSTANCE: invention is related to the field of machine building and is intended for use as drive for stop valves and control valves. Manual double-speed drive for pipeline valves comprises gear drive, slave wheel, flywheel, speed switch. Slave wheel is connected to mechanism of stop element displacement. Master shaft consists of two parts with master pinions fixed on them. Speed switch separates master shaft into two parts. Speed switch is controlled by traction rod. Traction rod is pulled through part of master shaft. Traction rod is connected to flywheel and is kinematically connected to additional flywheel. ^ EFFECT: improved consumer properties of double-sided drive. ^ 2 cl, 1 dwg |
