Application Field
Drilling, mining and anchoring in coal mines, mines, construction, water conservancy projects, railways, highways, bridges and tunnels and other industries. In coal mines, it is mainly used for coal mine water exploration, gas exploration, and roadway exploration.
Connection Type
Buckle type: flat buckle, taper buckle
Flat buckle: Φ34.0mm, Φ42.0mm, Φ50.0mm (drill pipe diameter)
Taper buckle: Φ63.5mm, Φ73.0mm, Φ89.0mm (drill pipe diameter)
Flat buckles are generally used for small diameter geological drill pipes. With the increase of the diameter of the drill pipe, the drilling depth and the torque of the drill pipe will increase accordingly. The drill pipe connected by the taper can ensure the transmission of torque when the drill pipe is working, and it is also more convenient to disassemble. It can also be customized according to the special needs of customers.
Drill match
The diameter difference between the drill pipe and the drill bit is the primary factor to be considered. The diameter difference refers to the difference between the diameter of the drill pipe and the drill bit. The diameter of the drilled hole is caused by the diameter of the drill bit. The diameter of the drill pipe should be smaller than the diameter of the drill bit. During the drilling process, the force on the drill pipe can be reduced to a minimum. There is no clear standard value for the diameter difference. According to our experience, our drill pipe and drill bits are matched as follows:
|
Drill pipe diameter |
Φ34mm |
Φ42 mm |
Φ50 mm |
Φ63.5mm |
Φ73 mm |
Φ89 mm |
|
Drill bit diameter |
Φ55 mm |
Φ65 mmΦ75 mm |
Φ75 mm |
Φ94 mm |
Φ94 mm |
Φ108 mmΦ133 mm |
