Coal cutter pick holder for fastening especially round shank picks on a coal cutting drum

摘要

1. A pick holder for attaching in particular circular shank picks to a cutting head of a winning or heading machine, comprising a nozzle (7) and a valve (6) arranged behind the pick for the load-dependent spraying of the pick with a coolant, where the opening of the valve (6) takes place against a spring pressure (12) and the coolant pressure by the acial displacement of the pick (11), characterized in that the pick holder (1) is sub-divided into a shank housing (3) which accommodates the pick shank (11) and a valve housing (4) which accommodates the valve (6).