MINERAL AND ARTIFICIAL MATERIAL CUTTING DEVICE Russian patent published in 2005 - IPC

FIELD: mining industry, particularly miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam.

SUBSTANCE: device comprises working head, shank with groove for clamping sleeve receiving and with seating surface for protective member installation in its working position. The device also has split clamping sleeve and protective member installed on clamping sleeve so that protective member may perform axial movement. Lower protective member base is spaced a distance from axis of device symmetry relative shank end. The distance is not less than 0.45 of clamping sleeve length measured along the same axis. Protective member thickness is 0.025-0.25 of clamping collar length. Protective member may be formed as flat washer, as plate-like washer, as washer with annular extension located on upper end thereof and cooperating with end working head surface, as washer with additional axial annular extension formed on lower end thereof and cooperating with cutter holder or as at least two washers.

EFFECT: reduced labor inputs for device assemblage in the field.

6 cl, 5 dwg