The rock drill works according to the principle of impact crushing.
When working, the piston makes high-frequency reciprocating motion, constantly impacting the shank.
Under the action of the impact force, the sharp wedge-shaped drill bit crushes the rock and chisels into a certain depth, forming a dent.
After the piston retracts, the drill rotates through a certain angle and the piston moves forward.
When the shank is hit again, a new dent is formed. The fan-shaped rock block between the two dents is sheared by the horizontal force generated on the drill bit.
The piston continuously impacts the drill tail and continuously inputs compressed air or pressurized water from the center hole of the drill to discharge the slag out of the hole, forming a circular hole with a certain depth.
Post time: Dec-28-2020
