Petroleum drilling bit

• Main Authors: YANG ZHI, SUN YANGXIN
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to the technical field of petroleum, and discloses a petroleum drilling bit which comprises a bit body, cones are movably connected to the top of the bit body at equal intervals through bit legs, liquid outlet holes are formed in the bit body at equal intervals, and small spiral blades are rotatably connected to the inner sides of the liquid outlet holes. And the outer side of the small spiral blade is sleeved with a bevel gear A, the inner side of the mounting groove is rotationally connected with a limiting rod, one end of the limiting rod is fixedly connected with a baffle disc, the middle of a bevel gear C is fixedly connected with a conduction shaft, and one end of the conduction shaft is fixedly connected with a bevel gear D meshed with the bevel gear A. The rotation of the drill bit body can enable the bevel gear D to drive the small spiral blade to rotate through the rotation of the bevel gear C, so that chippings generated when the drill bit works can be discharged from the