04
2022
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07
Preparation method and process of drill bit
The cross drill bit has four drill bits arranged in a cross. Under the condition of rock drilling with large impact power, it is used to excavate fractured rock layers and rock layers with strong wear resistance. However, the cross drill bit has strong radial wear resistance, and when drilling rock, the gap of the drill bit is easy to block stones and the drilling efficiency is low. Then, let's learn about the preparation method and process of the lower drill bit together!
Rock drilling refers to the technological process of drilling on the ore rock by using a rock drill. The mechanical rock drilling method is a common rock drilling method. The method is to install a cutter head suitable for the rock formation structure at the working end of the rock drill to impact the rotary rock drilling. The existing general cross-type drill head and ball tooth-shaped drill head, cross-type drill head and ball tooth-shaped drill head have the following defects when used. The cross-type drill head has four drill heads, under the condition of rock drilling with large impact power, it is used to excavate fractured rock layers and strong abrasive rock layers, but the cross bit has strong radial wear resistance, and when drilling rock, the drill bit gap is easy to block stones and the rock drilling efficiency is low. Then, let's learn about it together.Drill bitThe preparation method and process of it!
Compared with the cross-shaped drill bit, the tooth-shaped drill bit has strong applicability, fast rock drilling speed, long service life and round hole type; however, when the rock tooth-shaped drill bit excavates uneven rock layers, it is not easy to rotate and fall off, that is to say, soft brazing will occur and the drilling efficiency will be reduced.
In view of the defects of the current technology, the purpose of the utility model is to provide a multifunctional drill bit with strong resistance to radial grinding, which is not easy to block stones between the cutting edges, can avoid the occurrence of brazing, and has high rock drilling efficiency.
Drill bitIn order to achieve the above purpose, the utility model adopts a multifunctional cutter head, which includes an integrally formed brazing table and a cutter head column. The brazing table is arranged on the top of the cutter head column. The table top of the brazing table is circular. Three cutting edges are respectively arranged in the radial direction on the table top of the brazing table, and two adjacent cutting edges are provided with several longitudinal discharge grooves on the side wall of the brazing table between two adjacent cutting knives; the cutting edge has a trapezoidal shape in longitudinal section, and its upper surface is parallel to the bottom surface. A plurality of brazing teeth are provided on the upper surface of each cutting edge.
Compared with the prior art, the advantages of the utility model are:
1) On the roller surface of the utility model, three cutting knives are arranged at equal intervals along the radius direction, and the upper surface of each cutting knife is provided with a plurality of brazing teeth. The three cutting knives arranged symmetrically in the center can be effective Improve the radial strength of the cutter head. Therefore, compared with the cross-shaped cutter head of the prior art, the multifunctional cutter head of the present invention has strong radial wear resistance. At the same time, compared with the ball tooth-shaped cutter head of the prior art, the multifunctional cutter head of the present invention When it is difficult to hang and fall off, the cutting edge will cut the rock of the block bit only by rotating.
2) The utility model has several longitudinal slag discharge grooves on the side wall of the drill table between two adjacent cutting knives, the chopped stones are quickly discharged from the slag discharge grooves, and the stones are not easily blocked between the cutting knives.
3) The diamond cutting layer on the top surface of the cutting edge of the utility model has a tip, and when the drill bit rotates and exits, the cutting ability of the rock that prevents it from moving is increased, and the rock drilling efficiency is further improved.
Drill bitIt includes an integrally formed cutter head and a cutter head column. The cutter head is arranged on the top of the cutter head column. The table top of the cutter head is circular. Three cutting edges are respectively arranged on the table top of the cutter head along the radius direction. The included angle between two adjacent cutting edges is equal. Several longitudinal discharge grooves are opened on the side wall of the brazing table between two adjacent cutting knives. The longitudinal section of the cutting edge is trapezoidal, and the upper surface is parallel with the bottom surface, A plurality of brazing teeth are provided on the upper surface of each cutting edge. The utility model has strong anti-radial grinding ability, is not easy to block stones between cutting edges, can avoid the occurrence of knurling phenomenon, and has high rock drilling efficiency.
The above is the preparation method and process of the drill bit. If you need to know more, please feel free to contact us!
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