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TAMPING TOOL UNIT FOR RAILWAY TRACK TAMPING MACHINES AND A TRACK TAMPING MACHINE HAVING SUCH TAMPING TOOL UNITS
TAMPING TOOL UNIT FOR RAILWAY TRACK TAMPING MACHINES AND A TRACK TAMPING MACHINE HAVING SUCH TAMPING TOOL UNITS
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机译:用于铁路轨道捣固机的捣固工具单元以及具有这种捣固工具组的轨道捣固机
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摘要
1318912 Railway ballast tamping machines F PLASSER 14 July 1970 [8 Aug 1969] 34161/ 70 Heading E1G A motorised tamping tool unit for a railway ballast-tamping machine comprises at least one pick holder 18 which depends from a shaft 17 on a support 12 and is vibrated by a hydraulic motor 14 on the support, the support 12 being progressively rockable-e.g. by jack 26 about a horizontal axis 13 to squeeze the vibrating pick 18' towards a sleeper 4. As shown a shaft 17 carrying a pair of laterallyadjustable pick holders 18 is mounted in a casing 12 which is freely pivotally suspended on a motor-driven shaft 13 and is positioned by jack 26. Within the casing a guide arm 24 rigid with shaft 17 is oscillated by a slide block 23 rotatably mounted on an eccentric portion of the shaft 13. The shaft 13 and jack-pivot 28 are mounted on a column 11 forming part of a height-adjustable unit, Fig. 1 (not shown) on a track-maintenance machine. Such machine may include track lifters (9) and monitoring devices. Numerous combinations of hydraulically-oscillated tamping units are suggested, Figs. 4-7 (not shown) in many of which the units can be swung about vertical pivots (30), or driven in pairs from common motors (14).
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