DRILLING DEVICE Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: device has platform and on the platform it has oil station with drive, mast and mechanism for feeding drilling tool drive, made in form of hydraulic cylinder, body of which is fixed at platform, and on free and of rod of which a carriage with two rollers is mounted, which are placed along length of rod, two rollers, mounted in upper and lower portion of mast and flexible link, fixed by its ends in place of extreme position of each of carriage rollers with retracted and extended rod of hydraulic cylinder and skirting rollers of carriage on inner side, and rollers of mast - on outer side. Device is provided with additional two coaxially mounted rollers, mounted in zone of connection of end of flexible link, skirting side roller of carriage, and single roller, mounted in zone of connection of second end of flexible link. One of branches of flexible link after carriage roller skirts single roller and each branch of flexible link skirts coaxially mounted rollers on opposite sides.

EFFECT: higher reliability.

1 dwg, 2 cl