| 摘要 |
PCT No. PCT/DK82/00088 Sec. 371 Date May 31, 1983 Sec. 102(e) Date May 31, 1983 PCT Filed Sep. 30, 1982 PCT Pub. No. WO83/01245 PCT Pub. Date Apr. 14, 1983.A scraper conveyor comprising a conveyor chain or wire provided with a plurality of transverse scraper discs and passing along a closed path at least partly defined by a stationary conveyor channel or a tube extending from a material inlet station and past at least one receiver station, in which the material is dispensable through outlet openings in said channel or tube. The conveyor chain or wire is driven by a driving wheel engaging the transverse scraper discs, with the driving wheel being a circumferentially substantially smooth wheel having an outer cross sectional shape which conditions a frictional engagement between the wheel and the wheel periphery engaging portions of the outer edges of the scraper members. A tightener is provided for tightening the moved element of the conveyor about the driving wheel sufficiently to ensure a firm frictional engagement between these parts. The driving engagement between the driving wheel and the conveyor wire is entirely independent of the exact distance between the consecutive scraper discs because the driving engagement is established between the smooth circumferences of the driving wheel and the outer edge portions of the scraper discs.
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