Crusher

摘要

The invention relates to a crusher for crushing solid material, the crusher comprising a frame; at least one crusher rotor arranged rotatably to the frame and having crusher blades secured to the circumference thereof; a yielding counterblade structure arranged for cooperation with the crusher blades of the rotor for concurrently crushing and cutting said material and for yielding when encountering non-crushable material and when overloaded; and a yielding and downwardly openable set of screens below the crusher rotor, whereby the counterblade structure is linked to the frame of the set of screens and made turnable towards it with respect for the pivoting shaft in a yield situation; and the set of screens is linked to the crusher frame on the opposite side of the crusher rotor with respect to the counterblade structure and its pivoting shaft and made downwardly collapsible about the pivoting shaft of the set of screens.

主权项

1. A crusher for crushing solid material, the crusher comprising:
a crusher frame (1); at least one crusher rotor (2) arranged rotatably to the crusher frame (1), the crusher rotor having a circumference and having a plurality of crusher blades (3) secured to the circumference for crushing the material; a yielding counterblade structure (4) arranged for co-operation with the crusher blades (3) of the crusher rotor (2) to concurrently crush and cut the material, the counterblade structure (4) being arranged to yield in a situation wherein the counterblade structure (4) encounters non-crushable material (12) and is overloaded; a yielding, downwardly openable set of screens (5) that is arranged below the crusher rotor (2) at a selected axial distance from the crusher blades (3) of the crusher rotor (2), and a frame (7) for the set of screens, wherein the counterblade structure (4) is linked to the frame (7) for the set of screens (5) at a first pivoting shaft (6) and is turnable about the first pivoting shaft (6) towards the frame for the set of screens (5) in the yield situation; and wherein the set of screens (5) is linked to the crusher frame (1) at a second pivoting shaft (8) on an opposite side of the crusher rotor (2) to the counterblade structure (4) and the first pivoting shaft (6) and the set of screens (5) is downwardly collapsible about the second pivoting shaft (8), and wherein the counterblade structure is rotatable about a third pivoting shaft (10) that is movable relative to the crusher frame.