RAMME ZUM ERMITTELN VON BODENEIGENSCHAFTEN UND ZUR BODENPROBENENTNAHME

摘要

The ram establishes soil properties or soil samples. A hollow piston rod is directly connected with the ram and divides the housing into a striker and return chambers. The side of the piston which is active for the striker stroke is constantly exposed to the compressed air feed. The striker chamber has a small working surface and the compressed air take-off from the larger surface return chamber is via the hollow piston rod. The housing or the piston forms the ram bar. During the return stroke, the striker chamber is connected with the return chamber by recesses in the piston. At the end of the return stroke, it is separated from the return chamber.