Disclosed is a drilling and rolling combination cutter disc structure for a TBM (
tunnel boring machine). The drilling and rolling combination cutter disc structure for the TBM is characterized in that a working face of the drilling and rolling combination cutter disc structure is a spherical face which is protruded outwards, a plurality of hob sets different in
radius are arranged on the working face and around the center of a cutter disc body, each hob set comprises a plurality of disc type hobs, drilling
machine operation holes are formed between each two adjacent disc type hobs, a rail and a rock drilling
machine which slides along the rail are arranged on one side of the cutter disc body and along the direction opposite to the TBM work direction,
drill bits of the rock drilling
machine can stretch out or retract through the drilling machine operation holes, soil and stone
discharge holes are located between each two adjacent hob sets and used to
discharge excavated soil and stone from the soil and stone
discharge holes, and the other rock drilling machine is arranged at the center of the cutter disc body in the same mode. According to the drilling and rolling combination cutter disc structure for the TBM, the rock
drilling machines are added on the cutter disc body, and therefore a combination of the
drilling machines and the hobs is achieved,
rock breaking efficiency is improved, torque of the cutter disc body and the disc type hobs is reduced, and the excavation area of a cutter disc is increased by improving the structure of the cutter disc body and optimizing the arrangement mode of the hobs.