Operating method for impact breaker

摘要

The impact breaker has a motor-driven sledge roller fitted on the circumference with at least two diametrically opposite sledge strips which on the outside are inclined roof-shaped (20a) with the rise running in the rotary direction. At predetermined time intervals the height of the front edge of the strips is measured and the motor speed and gap width, ie distance between impact mechanism and impact circle are adjusted dependent on the height of the profile. The height and profile of the strips changes with increasing operation, ie the height decreases by an increasing amount. The speed of the motor, starting from a maximum speed value when the strip is new, as well as the gap width (a) are reduced. The extent of the decrease of the speed and gap width is made dependent on the material to be broken. A set of templates is used to determine the height and possible incline of the profile of the strips.