DEVICE FOR CUTTER ATTACHMENT ON MACHINE ACTUATOR Russian patent published in 2016 - IPC E21C35/19 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to machine building, in particular, to mining and construction industries. Cutters attachment device includes cutter holder body fixed on actuator, made with projecting part in front of cutter, with opening for cutter, cutter rigidly secured in cutter holder body and opening for insert, insert, connecting actuating element with cutter holder body. Cutter holder body is made monolithic, in projecting cutter holder part in front of cutter body part through hole with a plug from above is made, in which bearing bushing is press-fitted. Insert is cross shaped in cross-section axis, which horizontal component is support, rigidly fixed on actuator by welding. Cutter holder body is fixed on cross-shaped in cross section axis with possibility to turn about axis at preset angle in vertical through hole. Cross-shaped in cross section axis is arranged in cutter holder body with eccentricity relative to cutter edge. On axis side surface over horizontal component circular groove for holder is made in form of spring key, rigidly fixed in cutter holder body slots.

EFFECT: technical result is expansion of structural and functional capabilities, reducing destruction process power consumption, increasing of cutter and cutter holder operability.

1 cl, 6 dwg