HYDROMECHANICAL SLIT PERFORATOR (VARIANTS) Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: device has body, extending cutting tool in form of two cutting disks mounted on axes, pusher piston with central and two side hydraulic channels, provided with two hydromonitoring end pieces. Disks are made with possible forming of two diametrically placed slits in a column. At axes two rockers are jointly mounted, each of which is made in form of two figured plates with apertures, wherein disks axes are positioned. According to one variant rockers are placed at end of pusher piston, and according to another one - on the body. Rotation of rocker with disks is provided for by its interaction with double wedge, mounted according to first variant on the body, according to second one - at lower portion of pusher piston. Mechanism for extending cutting rollers excludes contact of perforator body and the column.

EFFECT: higher reliability, higher manufacturability and higher productiveness.

2 cl, 2 dwg