Invention Grant
US09175447B2 Soil compactor having direct drive 有权
土壤压实机直接驱动

Soil compactor having direct drive
Abstract:
A soil compacting device has an upper mass and a lower mass that is coupled to the upper mass by a spring device and that has a soil contact element. In addition, a drive is provided for producing a working movement of the soil contact element. The drive has an electric motor, a drive frequency of a drive movement produced by the electric motor being equal to a frequency of the working movement of the soil contact element.
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