Single-roll crusher

In a single-roll crusher having a housing, a roll body freely rotatably supported on an eccentrically rotatable drive shaft in said housing, at least one laterally mounted crushing beam pendularly suspended in the upper part of said housing and being positioned at approximately the height of the roll body axis by means of a clamping bolt against a prestressed set of springs including a plurality of springs clamped between a front spring seat and a rear support disc, the set of springs, in turn, being supported by means of the support disc against said housing,

• whereby when crushing forces acting on said prestressed set of springs exceed a prestressing force, the springs are further compressed and said clamping bolt and said front spring seat are displaced in said housing away from said crushing beam,
• the improvement comprising base means on the crusher housing adapted to support said rear support disc,
• said base means having an aperture therein through which said set of springs is adapted to pass,
• a stop surface, in said base means, facing away from said crushing beam,
• prong means, facing each other, in said base means,
• and opposed prong means on said rear support disc,
• whereby the prestressed set of springs can be locked in the axial direction thereof by interengaging, in the manner of a bayonet lock, the prong means in said base means with the opposed prong means on said rear support disc.