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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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