Introduction of Mining dental wheel drilling tool

Mining dental wheel drilling tools are mainly used for vertical drilling in large open pit mines, earth and rock excavation, water wells and geothermal wells. In the process of drilling, the teeth wheel drilling rig drives the teeth wheel drill bit to rotate through the drilling rod and exerts downward thrust for drilling. Under the action of rotating force, the drill drives three wheels with carbide teeth or steel teeth to rotate around their respective jaw journals, while under the action of axial thrust, the alloy teeth or steel teeth are embedded in the surface layer of the rock, and the rock is crushed by the compound force of extrusion and shear, so as to achieve the purpose of perforation.

When selecting the drilling tools for mining, the design of the drill bit must be adapted to the characteristics of the rock to be drilled, and different design structures are adopted for the drill bits used in different types of rocks.

Drill bits for soft rocks usually have a longer height of exposed teeth and a sparse distribution of teeth, so that the drill bit can be rolled and scraped on the rock surface to achieve the purpose of fast rock crushing: for hard rock drill bits, a high toughness sphericalbutton alloy is used and the teeth are relatively dense. alloy teeth.