CONE CRUSHER ARMOUR AND ITS FABRICATION METHOD Russian patent published in 2009 - IPC B02C2/04 

FIELD: mechanics; technological processes.

SUBSTANCE: armour has a support surface providing for support onto the armour-bearing element and the first working surface contacting with the material delivered into the crusher upper section to be crushed between the first working surface and the corresponding second working surface of another armour interacting with the specified one. Within at least 50% of its vertical height (H) from the output upwards along the first working surface the first working surface is mechanically treated with the runout tolerance at each level along the section of the first working surface vertical height (H) to have undergone mechanical treatment is no more than 0.001 of the working surface maximum diameter but under no condition no more than 0.5 mm.

EFFECT: improved material crushing quality.

12 cl, 9 dwg, 2 tbl, 4 ex