发明名称 TAMPING TOOLS
摘要 There is provided a new and useful tamping tool for a railway ballast tamping machine comprising: a shank comprising a shaft, means for fastening the shaft to a tamping machine, and, integral with the shaft, a foot including a first surface; a deformable stress equalizing pad; and a tamping pad adapted to be removably secured to the foot, the tamping pad having a cavity adapted to receive the foot therein, the cavity having a surface corresponding to the first surface of the foot and having at least one other surface corresponding to a second surface of the foot, the relative dimensions of the foot and the cavity being such that when the foot is inserted into the cavity with the equalizing pad between the first surface and the surface corresponding thereto, the at least one other surface is jammed against the second surface, and the equalizing pad is deformed in compression to a thickness which is less than its original thickness. Components for the tool and a method of joining a tamping pad to a shank are also provided.
申请公布号 CA1303420(C) 申请公布日期 1992.06.16
申请号 CA19880584488 申请日期 1988.11.29
申请人 BIERMANN, PAUL 发明人 BIERMANN, PAUL
分类号 E01B27/16 主分类号 E01B27/16
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