1results about How to "Good speed-up effect" patented technology

This utility model discloses an ultra-high pressure jet-coated PDC drill bit, relating to the field of rock-breaking auxiliary tools. It includes a drill bit body with a mud flow channel and a high-pressure flow channel within the mud flow channel; multiple cutting blades spaced circumferentially on the drill bit body, each blade having multiple composite plates along its length; a high-pressure nozzle on the cutting blades, connected to the high-pressure flow channel; and composite backup teeth, also on the cutting blades and positioned along the jet trajectory of the high-pressure nozzle. This invention solves the technical problems of existing technologies where adding additional pressurization tools for rock breaking is inconvenient, and where high-speed water flow through conventional nozzles easily causes large-area erosion of the cutting composite plates on the PDC drill bit.