Excavating and renovating drilling machines with better quality and higher efficiency

A new type of rock drill has emerged, which can be basically divided into two types: one is a small handheld rock drill with lower impact energy, mainly used to replace traditional pneumatic picks, and mostly used in conjunction with small excavators such as loaders and hydraulic engineering vehicles; Another type is large airborne hydraulic rock drills, which are mostly based on the backhoe operation device of hydraulic excavators. The backhoe bucket is replaced with a rock drill for operation, and the excavator driver operates it in the cab. The energy of this type of rock drill is relatively high, generally within the range of 1-6kN · m.

1) Before starting the hydraulic rock drill, check whether the inflation pressure of the accumulator is normal; Check if the flushing water pressure and lubrication air pressure are correct; Check if there is enough lubricating oil in the lubricator and if the oil supply is appropriate; Check the rotation direction of the oil pump motor.

2) When drilling, the thruster should be placed in the drilling position so that the front end is pressed against the rock, and the rock drill should be carefully manipulated to move forward so that the drill bit contacts the rock; When drilling, gently advance the rock drill first, and when the drill rod is in place in the rock, operate it to the fully open position.

3) If the rock drill cannot open the hole smoothly, the rock drill should be operated to retreat first, and then moved forward to re open the hole.

4) When replacing the drill bit, the drill bit should be lightly pressed against the rock, and the hydraulic rock drill motor should be reversed to achieve mobile fiber unloading.

5) The maintenance of hydraulic components can only be carried out under clean conditions. After removing the connecting mechanism, it is necessary to immediately plug it with a clean and tight fitting plug. Before reusing the rock drill after repairing the hydraulic system, hydraulic oil must be pumped into the oil circuit to clean the components of the hydraulic system.

6) Regularly check the oil level and fuel supply of the lubricator; Regularly add high-temperature resistant grease to the gears of the rotating mechanism; Regularly check the oil level in the lubricating oil tank and remove any dirt and impurities from the tank.

7) To store, use tight fitting protective plugs to plug all oil ports, clean the machine, and release the gas from the accumulator. Rock drills should be stored in a dry and clean place.

Most hydraulic rock drills are equipped with buffering devices, and some heavy-duty hydraulic rock drills also have recoil devices. The function of the buffer device is mainly to absorb the energy generated by the rebound of the drill rod, prevent the rebound of the drill rod from driving the relevant components to form a rigid impact with the body, and improve the service life of the drill rod and the body. The recoil device is designed to apply a reverse impact force to the drill rod in the event of a stuck drill, causing the drill rod to be ejected from the borehole. Impact power: 5.5kw