A SCRAPING CONVEYOR

摘要

A scraper conveyor comprising a conveyor chain or wire (8), which is provided with a plurality of transverse scraper disc members (10) and passes along a closed path at least partly defined by stationary conveyor channel or tube means (12) extending from a material inlet station and past one or more receiver stations, in which the material is dispensable through outlet openings in said channel or tube means, the conveyor chain or wire (8) being driven by means of a driving wheel (6) engaging with said transverse scraper disc members (10) in which the driving wheel (6) is a circumferentially substantially smooth wheel having an outer cross sectional shape (34) which conditions a frictional engagement between the wheel (6) and the wheel periphery engaging portions of the outer edges of the scraper members, means being provided for tightening the moved element of the conveyor about the driving wheel (6) sufficiently to ensure a firm frictional engagement between these parts. Hereby the driving engagement between the driving wheel (6) and the conveyor wire (8) will be entirely independent of the exact distance between the consecutive scraper discs (10), because the driving engagement is established between the smooth circumferences of the driving wheel (6) and the outer edge portions of the scraper discs (10), i.e. without specific relevance to any exact location of the rear sides of the scraper discs (10).