TUNNELLING MACHINE Russian patent published in 2016 - IPC E21C25/16 E21C27/24 E21D9/10 

FIELD: mining.

SUBSTANCE: invention relates to mining industry, namely to the tunnelling machine. The invention relates to mining industry, namely to the tunnelling machine. The tunnelling machine contains the running gear (3), the main frame (2) and at least one tool support (7, 8) installed with a possibility of rotation around the horizontal axis (17) of rotation which bears several roller cutting tools and is intended for rotary driving in both directions by means of the actuating unit. At least two roll-shaped tool supports (7, 8) are installed with a possibility of rotation around the common axis (17) of rotation which bear on their periphery several roller cutting tools (9) located with distribution in the partial peripheral zone (α). The actuating unit interacts with tool supports (7, 8) so that both two of the named at least two tool supports (7, 8) rotate at the rotary movement in both directions at least within the part of the rotary movement in opposite directions with reference to each other. The cutting tools (9) of one of opposite rotating tool supports (7) are located with the distribution in the partial peripheral zone (α) which, at least, in the point of return of rotary movement is displaced in the circumferential direction with reference to the partial peripheral zone (α) along which the cutting tools (9) of another of opposite rotating tool supports are arranged with distribution (8).

EFFECT: providing the cutting mode along the whole surface of the profile without the need for additional cutting of remaining rock edges.

24 cl, 7 dwg