| 摘要 |
An eccentric-disk tamper, comprising a vibrator frame intended to be raisably and lowerably attached to a vehicle, also comprises at least one vibrator unit connected to the frame by means of parallel guide linkages and bolts disposed at the pivot points. To avoid wear and tear on the joint bolts and to maintain the damping effect of a rubber insert, the bolts are non-rotatably secured to an inner metal sleeve of a coupling link which further includes an outer metal sleeve and, compressed between these two sleeves, a rubber cylinder non-rotatably fixed to both sleeves. Each such coupling link is non-rotatably connected to a respective guide rod of a parallel linkage. A stop disposed between two such guide rods limits their angle of displacement to displacement within the elastic limit of the rubber.
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