| 摘要 |
Chain webs (2) for chain conveyors (1) which are primarily used in underground mining and in tunnel building for the transport of large quantities of materials consist of mutually engaging horizontal and vertical chain links (5, 6) in which the horizontal links (5) of the two adjacent chains (3, 4) are joined by a one or two-piece bracket (8, 9) running across their longitudinal direction, sufficiently raised above them and having a reversible tooth shape. This results in a kind of toothed chain providing the optimum power transmission from the chain wheel (25) to the chain web (2), where both chains (3, 4) run exactly in the middle of the belt, as is usual in double/centred chain conveyors. The special shape of the reversible teeth makes it possible to use such a chain web (2) on both sides and to move it forwards and backwards without any risk. Owing to the smooth and broad-based power transmission, the reversibility of such chain webs (2) and the optimal conveying properties, times between breakdowns are substantially longer, which is of special importance in underground mining on account of the high rates of wear prevailing there. This is especially true of the two-part brackets (8, 9) connected by a heavy-duty spring sleeve (44). |
