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AssigneeDBT GmbH
InventorsDirk Vorsteher, Gerhard Merten, Frank Fischer, Jorg Wirtz, Siegfried Schmidt, Martin Broszat, Alfred Hefferan, John Cobley, Alister McAndrew, Olaf Losbrodt
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The invention relates to a conveyor pan (150) for underground face and gate conveyors, with a bottom run (102) and a top run (103) for the guidance of a scraper of a scraper chain, with a frame work construction (101) which has side walls (110) comprising cast parts firmly joined to each other, with an intermediate flange (111) and an upper moulded flange lug (112) extending outwards from it and a lower moulded flange arm (113) as well as a moulded foot flange (120) extending inwards and bordering the bottom run partly to the side. In accordance with the present invention the cast part (110) has at least one step (115) on the inner wall (114) of the intermediate flange (111) for supporting and welding on a plate (105B) forming an intermediate plate, below which the intermediate arm (111) and the flange lug (120) form a profile strengthening (149), and above which the intermediate arm (131) borders to the side an accepting space for the acceptance of an exchangeable tray (104) having rolled side profiles (180) welded to a conveyor base (184).
A conveyor pan for underground face and gate conveyors, with asymmetrical side walls, comprising cast parts joined together by a plate welded onto intermediate flanges which comprise an upper cast flange lug extending back towards the outside from the intermediate flange and a lower cast flange arm and a cast foot flange extending inwards partly bordering a bottom run for the guidance of a scraper of a scraper chain, onto which a bottom plate is welded which closes the bottom run to below, in which the cast part has at least one step on an inner wall of the intermediate flange, essentially at half the height between the flange arm and the flange lug for the support and welding on of a metal sheet forming an intermediate plate, beneath which an intermediate arm and the foot flange form a strengthening of a profile and above which the intermediate arm borders to its side an accepting space for the acceptance of a top run having a rolled side profile welded to a conveyor base.
Dependencies are inferred from the claim text.