Hybrid is well drilling drill bit in pit

The utility model discloses a hybrid is well drilling drill bit in pit, including drill bit body, wing, bit leg and gear wheel, the wing with the bit leg all with the upper end fixed connection of drill bit body, the lower extreme of bit leg with the lateral wall fixed connection of drill bit body, the gear wheel pass through the axle journal with the upper end rotatable coupling of bit leg, the axis of gear wheel with be provided with the contained angle between the axis of drill bit body, be provided with a plurality of conical tooths or disk shearing tooth on the wing, be provided with a plurality of chisel teeths and crew cut tooth on the gear wheel. The utility model discloses with roller bit's impact grinding and the wing structure of mixing the cloth tooth make the plough of drill bit cut, the shearing motion combines together, realizes that the shaft bottom is broken in advance, guarantees the fixed effective wedging rock of cutting teeth, eliminates the drill bit and takes place the stick -slip phenomenon on some special stratum, reduces the impact load of fixed cutting teeth, has reduced fixed cutting teeth impact damage's probability, improves drill bit stock -removing efficiency and mechanical drilling speed.