发明名称 Gear rack for driving or guiding a drum cutter loader
摘要 A gear rack is made up of rack segments arranged end-to-end supported by and extending along face conveyor for meshing engagement with a gear of a drive to propel a mining machine along a mine face. The teeth of each rack segment extend between longitudinal cheek sections. A thicker one of the cheek sections has a downward extending shoulder at each of opposite ends to engage in a cavity of a bracket and secured therein for limited movement by a fastener pin. A wall section of the bracket extends against a bearing surface formed by a cavity in the underside of the gear tooth at the end portion of the rack segment. The width of the wall section corresponds to the width of the bearing surface.
申请公布号 US4850648(A) 申请公布日期 1989.07.25
申请号 US19880255339 申请日期 1988.10.11
申请人 GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIEBEREI MBH 发明人 MULLER, LOTHAR
分类号 E21C29/02;F16H9/04 主分类号 E21C29/02
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