GEARBOX FOR DEVICES HAVING DOUBLE ROTATION TOOLS

摘要

The invention relates to a gearbox for devices having double rotation tools. Said gearbox is characterized in that it comprises a crown gear (2) engaged with the drive pinion (1), and thereby forms an angular gear, wherein a further pinion disposed on the shaft of the crown gear (2) is disposed so that said pinion drives an additional reversal shaft (3) and thereby implements a reversal of the direction of rotation, and said reversal shaft (3) rotating in the opposite direction as the crown gear (2) drives a counter-rotating rotary tool (6) by means of a further pinion disposed on the shaft (5) implemented as a hollow shaft, and a second rotary tool (7) is driven by means of the shaft (4) driven by the shaft of the crown gear (2) and the shaft (4) is thereby enclosed by the hollow shaft (5).