3 results about "Working life" patented technology

The invention discloses a diamond drill bit for comprehensive drilling, and belongs to the technical equipment fields of petroleum and natural gas drilling engineering, mine engineering, geological drilling, geothermal drilling, hydrological drilling, tunnel engineering, shielding, non-excavation and the like. The drill bit comprises a drill bit body, a water hole formed in the bit body, and a plurality of cutter wings extending from the drill bit body or fixed to the drill bit body, and fixed cutting elements are arranged on the cutter wings. The drill bit is characterized in that the drill bit further comprises at least one nozzle, and the nozzle comprises a flow mixing body; a flow mixing cavity, an exit port, a central hole communicating with the flow mixing cavity and at least one cut-in groove communicating with the flow mixing cavity are formed in the flow mixing body; and the central hole is used for forming a liquid straight flow in the flow mixing cavity, the cut-in groove isused for forming a liquid swirling flow in the flow mixing cavity, and the exit port is used for forming a channel for liquid ejection in the flow mixing cavity. The invention aims to provide the diamond drill bit suitable for comprehensive drilling, and the problems that in the rock breaking process of an existing drill bit, the working life of the drill bit is shortened and the drilling capacity is reduced due to the unreasonable hydraulic structure are effectively solved.