Hand Held Hydraulic Rock Drill

A new type of rock drilling machine emerged from hydraulic rock drills can be basically divided into two types: one is small hand-held type, and its impact energy is small, mainly used to replace the traditional wind, most and small excavation - loader Hydraulic engineering vehicles are used in combination; the other is large-scale airborne type. Most of these hydraulic rock drills are based on the backhoe operation of hydraulic excavators. The backhoes are replaced by rock drills and driven by excavators. The crew operates in the cab. The energy of such rock drills is relatively large, generally in the range of 1~6kN·m.

1) Check whether the accumulator's inflation pressure is normal before starting; check whether the flushing water pressure and lubrication air pressure are correct; check if there is enough lubricating oil in the lubricator, whether the oil supply is suitable; check the oil pump motor's rotation direction.
2) When drilling rock, the propeller should be placed in the rock drilling position, so that the front end is placed on the rock. Carefully manipulate the rock drill to move forward to make the drill bit touch the rock; when opening the hole, first gently push the rock drill to advance, when the drill rod is in After being placed in the rock, it is maneuvered to the fully open position.
3) If the rock drill cannot open the hole smoothly, the rock drill should be operated first to retreat, and then the rock drill should be moved forward to re-open the hole.
4) When replacing the bit, the bit should be lightly pressed against the rock to reverse the motor of the hydraulic rock drill to realize the motorized unloading head.
5) The maintenance of hydraulic components can only be carried out under extremely clean conditions. After the connection mechanism is removed, it must be immediately plugged with a clean and tight plug. Before the hydraulic drill is repaired, the hydraulic oil must be pumped into the oil circuit to clean the components of the hydraulic system.
6) The oil level and oil supply of the lubricator should be checked regularly; the gears of the slewing mechanism should be regularly filled with high temperature grease; the oil level in the oil tank should be checked regularly to remove dirt and impurities from the tank.
7) For long-term storage, apply a tight protective plug to plug all the ports, thoroughly clean the machine and drain the gas from the accumulator. The rock drill should be stored in a dry and clean place.
Most of the 8 hydraulic rock drills have a buffer device, and some heavy hydraulic rock drills also have a recoil device. The function of the buffer device is mainly used to absorb the energy when the drill pipe rebounds, and prevent the drill pipe from rebounding to drive the relevant components to form a rigid impact with the body, so as to improve the life of the drill pipe and the body. The recoil device is used to push the drill pipe back from the blasthole in the event of a stuck drill with a reverse impact force on the drill pipe.