CHAIN Russian patent published in 1995 - IPC

FIELD: materials handling; continuous transportation machines. SUBSTANCE: chain has multilayer steel flexible tape, stepped axles and bushing made of two semi-bushings. Projections and cavities are made on stepped axle and semi-bushings straddling the axle. Multilayer flexible tape is clamped in middle part of stepped axle between projections and cavities to provide reliable fixing of flexible tape. Semi-bushings are made of spring steel with cutouts on ends spaced at distance equal to width of flexible tape to support the latter by walls of semi-bushings between cutouts, thus providing shock-absorbing at variable working load of chain. Linear velocity of chain leading strand on drive sprocket is constant owing to the fact that flexible tape passes over support circumference of sprocket arranged between double-row teeth. No dynamic efforts appear in such drive and chain is exposed only to static load which makes it possible to use chain at higher speeds. EFFECT: enlarged operating capabilities. 4 dwg