Tunnelling machine scraper conveyor - has shaving edges formed between link supporting surfaces and end faces with acute angle between

摘要

The scraper-chain conveyor is particularly for mining and tunnelling machines, having one or more endless chains with scrapers working in a trough, and cleaning devices on the individual links, having a shaving action. The supporting surfaces (16) of some of the links at least (9, 11) form edges (21, 23) with the end faces (19, 20) of these links, they included angle (w) being of less than 90 deg. Where there are two chains with scraper bars between them, these edges can be formed on the outermost links.