Pick with pick head designed for assistance by high-pressure liquid jets

摘要

The invention relates to a pick 1, in particular for shearing drums, towards the cutting edge of which at least one nozzle 6 arranged in the pick holder 3 or in the periphery of the shearing drum is directed for spraying a high-pressure liquid jet 8. The cutting edge or the carbide cutting tip 7 of the pick 1 is provided with an opening 10, 11, 14, 16, 17, 21, 23. It runs in the direction of the jet, extends over the entire height of the pick head and directs the high-pressure liquid jet 8 emerging from the nozzle 6 right into the area of the pick cutting edge, where it discharges from the pick 1 and acts on the visible mineral in such a way as to break it down. <IMAGE>