CUTTING MODULE OF TUNNEL BORING MACHINE FOR SOLID ROCK Russian patent published in 2017 - IPC E21C25/06 E21D9/02 

FIELD: mining engineering.

SUBSTANCE: cutting module of drilling tunnel boring machine for solid rock contains a reduction gear of the cutting device, a cutting tool leg connected to the cutting device reduction gear and a cutting head mounted on the cutting device leg. The cutting head comprises a main shaft, a planetary satellite assembly, inner gear ring, a bearing unit, a packing gland, a casing, cutting device discs, cutting teeth, a planetary gear carrier and a parallel bevel gear assembly. The inner gear ring and the bearing unit are rigidly connected to the cutter body by means of bolts. The planetary gear assembly is mounted on the satellite planet gear carrier of the cutting device. The rotary seal is installed between the satellite planetary gear carrier of the cutting device and the bearing block. The sealing gland is fastened to the satellite planetary gear carrier of the cutting device by means of screws. A parallel-running tapered-tooth assembly is mounted on the satellite planetary gear carrier of the cutting device. The body of the cutting head is fastened to the satellite planetary gear carrier of the cutting device by means of bolts. The discs of the cutting device are installed on the bevelled surfaces of the cutting head body. The cutting teeth are welded at the front end of the cutting head body. A parallel-running conical tooth assembly is engaged with the main shaft of the cutting head.

EFFECT: higher efficiency the operation.

4 cl, 3 dwg