Improved Drill

Abstract

The invention provides an improved drilling device which comprises first and second drilling units. The first drilling device comprises a connecting rod, a connecting cylinder, a connecting pipe and adrilling pipe, and the second drilling device comprises a drilling rod and a drill bit; the connecting rod is fixedly connected to the enclosed end of the connecting cylinder, one end of the connecting pipe is in threaded connection with the open end of the connecting cylinder, the other end of the connecting pipe is in threaded connection with the drilling pipe, one end of the drilling rod is inthreaded connection with the inner wall of the connecting cylinder, and the other end of the drilling rod is connected with the drill bit; and the center of the connecting rod is provided with a water inlet, the water inlet is communicated with a water guiding hole in the drilling rod, the drilling rod is internally provided with a drainage hole communicated with the water guiding hole, and the drainage hole is provided with a water outlet. The drilling resistance can be reduced effectively, the drilling device is avoided form deformation or damage, and the cost is reduced; and an accurate drilling position is located, and error of the drilling position is avoided; and the drilling device is prevented from dust and cooled, the service life is prolonged, and the drilling depth can be controlled effectively.

Description

technical field [0001] The invention relates to the field of drilling machinery, in particular to an improved drill. Background technique [0002] With the rapid development of my country's economic construction, the demand for energy is huge. Coal resources, as the main source of energy supply in my country, will be difficult to change for a long time in the future, resulting in the continuous development of the coal industry in the direction of mechanization and automation. At present, drills are often used in engineering fields involving engineering drilling, mine prospecting, etc. However, drills are often easily damaged during the drilling process. Resistance, if the slag cannot be discharged in time to the drill, it provides ample drilling space for the drilling operation. With the continuous increase of the drilling depth, the greater the resistance, it will affect the working efficiency and cause damage to the drill. The function of the traditional reamer is relativ...

AI Technical Summary

Problems solved by technology

At present, drills are often used in engineering fields involving engineering drilling, mine prospecting, etc. However, drills are often easily damaged during the drilling process. Resistance, if the slag cannot be discharged in time, it will provide ample drilling space for the drilling operation. With the continuous increase of the drilling depth, the greater the resistance, it will affect the working efficiency and cause damage to the drill

The function of the traditional reamer is relatively single. Drilling and coring sampling need to be performed by an independent reamer. It is relatively troublesome to replace, and it is impossible to save material costs and improve work efficiency.

At the same time, during the drilling operation, the drill will generate high temperature due to friction, causing damage to the drill and reducing the service life of the drill

Images