MOVING MECHANISM DRIVE FOR THREAD SPREADING DEVICE PLANK Russian patent published in 1998 - IPC

FIELD: textile industry, in particular, spinning, twisting and spinning-drawing machines. SUBSTANCE: drive has drive shaft, control unit and hydraulic engine formed as hydraulic cylinder. Hydraulic cylinder is mounted for linear reciprocating movement relative to fixed composite piston and stem. Detachable toothed rack is rigidly secured on top part of hydraulic cylinder for engagement with toothed wheel positioned above it on drive shaft. Hydraulic cylinder bottom part is connected with its surfaces to be joined to base, which is provided with guides and is in contact with supporting rollers arranged in pairs below guides and interconnected. Geometrical axis of each roller is positioned eccentrically relative to common rotary spindle. Immovable stem of hydraulic cylinder is composed of two hollow parts aligned one relative to another. One end of each part of stem is in fluid communication with reversible slide valve via pressure or drain pipeline. Other end of each part is removably connected with piston and is in fluid communication with related cavity of hydraulic cylinder via radial openings. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 dwg