rocktools68

The roller cone bit has been widely used as a tool for drilling rock formations. Significant improvements in drill performance directly reduce drilling costs, especially in the last decade. Both service life and drilling speed are performance indicators for  roller cone bit design , which ultimately determine the extent to which the drill bit affects drilling costs.Increasing the drilling speed and service life of the drill bit is an effective way to reduce the drilling cost. It is gradually recognized that the gauge structure also has a great influence on the drilling speed and life of the drill bit. Especially in the case of high-angle wells and horizontal wells, the drill bit requires a reasonable diameter-preserving structure, and many new-type gauge structures have been researched and developed. Good results have been achieved when applied to roller cone bits. We are  roller cone bit Factory ,  welcome new and old friends contact us.

1. Face convex type: This kind of  DTH drill bit  is divided into two types, single boss and double boss end face, the latter is mainly used for drill bit with larger diameter. The face-faced type of down-the-hole drill bit can maintain a high rock drilling rate when drilling hard and hard abrasive rock, but the straightness of the borehole is poor, and it is not suitable for rock drilling with high blast hole flatness. engineering. 2. End face flat type: This shape of the drill bit is more durable, suitable for drilling hard and extremely hard rock, but also suitable for drilling medium and hard rock and soft rock with low flatness. 3. Concave surface type: This shape has a conical concave part on the end face of the bit. It is a bit of nucleation during the rock drilling process to maintain the alignment performance of the drill bit. The drill hole has a good straight line. Degree, this drill bit has good drainage effect and fast drilling speed. It is a DTH drill bit that is use

The  coal cutting drill bits   are direct cutting tools for shearers and roadheaders. The working conditions are very harsh. The traditional picks are subjected to the friction and impact of coal seams or rocks during use. The general working life is relatively short, and the main failure mode is due to the intercept. Too fast wear of the tooth head causes the alloy head to fall off or the bending resistance of the tooth body is bent or broken under strong force. The wear resistance of our products has been greatly improved compared with the traditional picks. So what is the outstanding function of this improved new pick? 1. The wear resistance of the  coal cutting tools  is significantly improved. 2. The bending resistance is significantly improved. According to the fracture location and bending of the pick during use. Using the advanced analysis software ANSYS, the picking teeth were subjected to mechanical simulation analysis under the process of force damage, and based on the

1. Reaming drill. Reaming drills have 3 to 4 teeth and are more rigid than twist drills to expand existing holes and improve dth drilling tools accuracy and finish.  2. Drilling. The boring drill has a large number of teeth, and the hole end is processed into a desired shape by a forming method for processing of dth drilling tools factory the countersunk holes of various countersunk screws or flattening the outer end faces of the holes.  3. Center drill. The center drill is used for drilling the center hole of the shaft type workpiece. It is essentially a composite of twist drill and boring drill with a small helix angle, so it is also called a composite center drill. 4. Twist drill. It consists mainly of the working part and the handle. The working part has two spiral grooves that are shaped like twists. In order to reduce the friction between the guiding portion and the wall of the hole during drilling, the twist drill is gradually reduced in diameter toward the shank an