PTC Vibrodriver Technology
Functional Principle The Vibrodriver vibrates profiles, sheet piles or casings to drive or extract in vertical vibrations. This in turn causes the adjacent ground to shift. The ground is loosened, which leads to the pile being driven into the ground by its own and the vibrator's weight. It can be extracted by the same principle via the pulling force of the carrier (crane) in use. |
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Design The vibrodriver is shifted in unidirectional vertical vibrations through the eccentrics mounted in the gearbox. The eccentrics, ordered in pairs, turn with the same angular velocity in opposite directions. Both eccentrics generate centrifugal forces fc. The horizontal components fh are offset at the same time that the vertical components fv are added resulting in a centrifugal force Fc. The element to be driven or extracted is clamped under the gearbox via a hydraulic clamp. A yoke is located above the gearbox and prevents the transmission of vibrations through elastomer blocks. The heavy yoke causes an additional downward force through its own weight, which can be increased by adding additional weights. |  |
The selection of a vibrodriver is based on:
The diagram, which has been derived from experience, can be used to preselect the vibrodriver. Moreover, driving efficiency can be improved by air or water jetting. Parameters
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