Instruction
Pick is compressed air as the power, the use of impact crushing hard object construction tools.Is a hand-held machine, so demand structure is compact, and with light.
Principle
Hand-held pneumatic tool, use compressed air to push the piston reciprocating motion, keep the pick up to the impact.Used in mining, road construction, etc.
Pneumatic pick, impact mechanism and picks valve-train by brazing, etc.The impact mechanism is a thick wall cylinder with the impact hammer along the inner wall of the cylinder for reciprocating motion.Pick the front end of the drill tail into the cylinder, cylinder backend is equipped with high-pressure air box.
Around the perimeter of the cylinder wall has many longitudinal porosity, compression of the plunger valve spring and ventilation road, the stomatal wildcard valve at one end, and push the handle sleeve, the other end into the cylinder, the length of each hole according to the requirements of the impact hammer movement configuration, so that in turn intake and exhaust, plunger valve under the effect of helical spring in the cut off gas path normally closed state.The impact hammer reciprocating motion in the cylinder with regularity.Impact hammer forward movement, hammer blow shank;Impact hammer backward movement, the gas inside the cylinder closed in high-pressure air box, forming flexible cushion layer, the gas inside the cylinder closed in high-pressure air box, to distribution and then forward again.Hammer blow shank;Impact hammer backward movement, pick the initiating device is located in the handle in the sleeve.Between the blast pipe and high-pressure air has a plunger valve pneumatic control and plunger valve under the effect of helical spring in the cut off gas path normally closed state.When pneumatic pick, to enable picks brazing construction surface, the other end into the cylinder, push the handle socket, compression of the plunger valve spring and ventilation road, there are many longitudinal hole around the perimeter of the cylinder wall, air valve and automatic distribution, cylinder backend is equipped with high-pressure air box.Make the impact hammer continuously reciprocating motion, hit the shank, broken body construction.Pick is a hand-held machine, pneumatic pick, impact mechanism and picks valve-train by brazing, etc.Therefore require compact structure, with light.
