Structural features: 1. Adopt two steps of diameter protection of cone and bit body, and the bit body is mounted with active cutting diameter protection tooth and passive anti-wear diameter protection tooth. The bit has better diameter protection and backstroke function. 2. Staggered tooth is used for the tooth distribution of the roller. The shape, tooth row, tooth number and dew height of the roller are optimized. 3, the hydraulic system adopts the main and secondary water hole structure, using jet and diffusion cleaning two types of nozzle, optimization Nozzle assembly. 4. Advanced high saturation NBR ring is adopted for sealing of large and small shafts of drill bearings, with optimized sealing compression and special The diameter retaining structure design ensures the high reliability of bearing seal. 5. Hard metal layer is surfacing on the surface of the tooth palm bearing, and the inner hole of the tooth roller is inlaid and welded to reduce the running metal, which improves the working capacity of th

Product advantages:

YA series single cone bit is a kind of deceleration bit, that is, the rotational speed of the cone is smaller than that of the bit, mainly to scrape and break rock, suitable for the old well window sidetrack drilling, old well deepening and other small hole drilling operations under high rotational speed and high bit pressure. Its advantages are:
The application field is wide, not only suitable for side drilling construction, but also can be used in middle and deep Wells.
Operating torque is lower than PDC bits with the same weight on bit and formation conditions, which can reduce the problem of blowout and prevent downhole accidents.
The single-cone bit has the advantages of tricone bit and PDC bit, and makes up for the disadvantages of the two bits, respectively. It is more suitable for the formation with large strength and plasticity than the tricone bit, and it can also be used in the hard interlayer and other complex formations that PDC bit is difficult to dea