Tricone bit is one of the most widely used drilling bits. It has the characteristics of wide formation adaptability and high penetration rate. The tricone bit is composed of more than 20 parts, such as cutting structure, bearing structure, locking element, oil storage seal device and nozzle device. The main products include 6~ 133/4 series of mining drill bits.
In order to meet the special needs of drilling and formation, the company constantly innovates on the drill bit structure, and develops new technologies such as palm back strengthening, palm back righting, backflow prevention valve, and special diameter protection of cone, which have been promoted and applied in various types of mining drill products, improving the quality and performance of the drill bit.
Under the action of weight on bit and rotation of drill string, the teeth crush and eat the rock, and at the same time produce a certain amount of sliding and shear rock. When the cone rolls at the bottom of the well, the teeth on the cone impact and press into the formation in turn, which can crush part of the rock at the bottom of the well. Meanwhile, the shear action caused by the sliding of the cone can cut off another part of the rock between the teeth, so that the rock at the bottom of the well can be broken and the well can be extended.
In oil drilling and geological drilling, cone bit is often used. Cone bit in rotation has impact, crushing and shear crushing formation rock role, so, cone bit can adapt to soft, medium, hard all kinds of formation.
