Trench cutter for use in hard-rock - comprises row of percussive cutting edges supported between upper and lower frame connected by pivot

摘要

The trench cutter includes percussive elements placed at equal height and continues in a straight line; it includes upper and lower chassis in the longitudinal direction, the upper chassis being pivoted. Rotation is transmitted by pinions associated with the percussive elements, which are guided by guide tubes connected to the lower chassis. longitudinal chassis direction at equal heights. The upper, pivoted chassis serves a guide and supplies energy to the percussive elements. It transmits the percussion onto the chipping edge by a percussive shaft.