FIELD: soil or rock drilling; mining.
SUBSTANCE: group of inventions relates to a recess tool for a drilling head of a drill tunnelling machine. Extraction tool for drilling head of drilling tunnel boring machine for excavation of rock, at that, recess tool has: configured to be mounted on the drilling head device for fixing the cutting roller for placement and installation of the rotating cutting roller, cutting roller, which for extraction of rock is placed or installed with possibility of rotation, primarily with possibility of replacement, in cutting roller fastening device, sensor device for detection of mechanical load of extraction tool, first of all, of cutting roller. Sensor device is made in the form of at least one installed on it sensitive to load at least partially installed in the device of fastening of a cutting roller and/or on a cutting roller of a cartridge. At that, sleeve is located on support of cutting roller, first of all, C-shaped part, device for fixation of cutting roller.
EFFECT: technical result is higher accuracy of sensor equipment for setting mechanical load.
26 cl, 12 dwg
