How to solve the common use problems of the Dth hammer bit

Common problems and solutions for the use of the drill bit of the Dth hammer bit

1. Drill bit overheating

Reason: Drilling pressure is too large, serious wear of the drill bit, and so on.

Solution:Reducing the drilling pressure; increasing the amount of cooling water; Regularly checking the drill bit wear; Avoiding long time continuous operation and taking proper rest.

2. Drill bit clogging

Reason: Rock chips are not discharged smoothly.

Solution:You can clean the drill hole and remove the blockage, increase the air volume or water volume to improve the efficiency of slag discharge and Choose a suitable drill hole diameter.

3. Broken teeth of drill bit

Reason: Poor quality of drill bit material, excessive drilling pressure, excessive impact force, hard objects in the rock layer, etc.

Solution:You can choose a high quality drill bit; adjust the drilling pressure and impact force; Check the rock layer carefully; avoid drilling into the rock layer containing hard objects, and Regularly check the drill bit and replace the badly worn bit in time.

4. Short bit life

Cause: Poor material of drill bit, improper operation, inadequate maintenance.

Solution:Choosing a drill bit material suitable for the rock formation and operating in strict accordance with the operating procedures.

5. Drilling deflection

Cause: Insufficient rigidity of drilling tools, uneven stratum, etc.

Solution:Selecting rigid drilling tools or adopting guiding device.

6. Drilling collapse

Reason: Loose rock layer, too large drilling diameter, etc.

Solution:You can reduce drilling speed and the drilling diameter.

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