How To Deal With Air Leg Rock Drill When The Drilling Speed Is Reduced

The main reasons for the decrease in rock drilling speed of air leg rock drill are low air pressure in the working environment, poor lubrication of the machine, insufficient air leg thrust, poor expansion and contraction, large recoil force of the machine, poor waterway, running water on the head and washing hammer, and wear of main parts.

Failure caused by low working pressure. The elimination method is as follows: Calculate whether the compressed air pipeline is overloaded, and reduce the number of working machines according to the actual situation, or reduce other gas-consuming operations. Eliminate the factors that cause the pressure drop caused by the pipeline leakage, check and disassemble the leakage pipeline and joints.

Failure caused by poor lubrication. Its elimination method: the small hole of the oil pipe is blocked, it should be cleaned and blown through with compressed air. Failure caused by insufficient thrust of the air leg and poor expansion and contraction. To replace or reassemble the worn or loose air leg rubber bowl, the frame body and the outer pipe thread connection is not tight, and the upper and lower chambers should be tightened for air blow-by. Damaged or missing sealing rings should be replaced in time. If the trigger is worn, the compression reversing valve is not working, and the air legs are not easy to shrink, the trigger should be replaced.

For the failure of air leg rock drill speed reduction, it must be carefully observed and comprehensively analyzed.