Failure 1:
Rock drilling speed is reduced
(1) Reasons for the failure of the
rock drill: first, the working air pressure is low; second, the air leg is not flexible enough, the thrust is insufficient, and the fuselage jumps back; third, the lubricating oil is insufficient; fourth, the flushing water flows into the lubricated part; fifth, the silencer cover freezes , Affect the exhaust; six is the main parts wear out of limits; seventh is the "wash hammer" phenomenon.
(2) Exclusion measures for rock drill: First, adjust the pipeline to eliminate air leakage, increase the diameter of the air supply pipe and reduce the air consumption equipment; Second, adjust the installation angle of the air leg, check whether the sealing rings of the air leg are intact, the handle and the handle Whether the trigger and directional valve are lost, damaged or stuck; three is to add oil to the lubricator, replace the contaminated lubricating oil, clean or blow through the small holes of the oil path; four is to replace the broken water needle and replace the one that blocks the center hole Drilling rod, reduce water pressure, detect water injection system; Fifth, knock out condensed ice; Six, replace parts with excessive wear in time; Seven, reduce water pressure, repair water injection system.
Fault 2: The water needle is broken
(1) The cause of the failure of the
rock drill: First, the small end of the piston is seriously piled up or the center hole of the drill tail is not correct; second, the clearance between the drill tail and the hexagonal sleeve is too large; third, the water needle is too long; .
(2) Removal measures of rock drill: First, replace it in time; Second, replace it when the size of the opposite side of the hexagonal set wears to 25mm; Third, trim the length of the water needle; Fourth, deepen it according to regulations.
Fault 3: gas-water linkage mechanism failure
(1) Reasons for the failure of the
rock drill: First, the water pressure is too high; Second, the gas or water path is blocked; Third, the parts of the water injection valve are corroded; Fourth, the spring failure of the water injection valve spring; Fifth, the sealing ring is damaged.
(2) Removal measures of rock drill: First, reduce the water pressure appropriately; Second, dredge the gas or water channel in time; Third, clear the corrosion or replacement; Fourth, replace the spring; Fifth, replace the sealing ring.
Fault 4: Not easy to start
(1) Reasons for the failure of the
rock drill: First, the water needle is removed; second, the lubricating oil is too thick and excessive; third, the water is poured into the machine.
(2) Removal measures for rock drills: one is to refill the water needle; the other is to adjust properly; the third is to find the cause and remove it in time.
