METHOD OF CLEANING HOLE DIGGERS AND SPOT CULTIVATORS AND HOLE DIGGER CLEANING DEVICE

摘要

A travelling rolling digger for sequential hole drilling or for producing sequential cultivated spots in soil. The travelling rolling digger includes at least one drilling shaft which is rotatable by a drive mechanism about a longitudinal shaft axis and has a rotating soil penetrating edge. The drilling shaft is mounted to roll about a horizontal shaft in a soil penetrating plane while the horizontal shaft moves in a direction of travel of the traveling rolling digger. The rotating drilling shaft enters the soil at an entry angle and digs into the soil while the horizontal shaft moves in the direction of travel and the drilling shaft continuously changes its angle relative to the soil from the entry angle to a vertical position. The traveling rolling digger further comprising at least one means to remove mud and/or debris accumulates on said digger and or means to prevent or minimize such accumulation.