HD series of high-pressure impactor is an impact rock drilling tool, but he and other rock drilling tools is different, during drilling it always stay in the hole bottom, the piston directly impact drill. Compressed gas through the drill pipe into the impactor, and then discharged from the bit, the exhaust gas is used to ballast. The rotary motion of the impactor is provided by the rotary head. The axial thrust is provided by the propeller and transmitted to the impactor through the rod. Structure principle (Technical description): This DTH impactor is composed of the piston, the inner cylinder, with the seat, check valve and bit accessories installed in the slender outer cylinder, the outer cylinder on the Fitted with a wrench mouth and the thread on the connector, the lower end of the threaded connection with the card solder. Card solder bushing is mainly used to transmit propulsion and rotary motion to the drill bit. The snap ring controls the axial movement of the drill bit, while the check valve is used to prevent debris such as rock ballast from entering the striker when the supply of gas is stopped. Drilling process, the drill bit is pushed into the impactor, and pressure on the card drill sleeve, then the piston directly impact drill bit for rock drilling. When the drill lift off the bottom of the hole is, began to blow strong. Operation and maintainence: 1, because the impact of the joints and joints are right-hand thread, so drilling work should always keep the impact of the right swinging. 2, open hole, should be used to minimize the impact and propulsion, the drill smoothly into the rock. 3, propulsion and drill weight matching is very important, thruster thrust must change with the weight of the drill changes. 4, the impactor usually revolving speed is generally 15-25rpm, the faster the speed, the faster the chisel, but in hard rock, the speed should be reduced in order to ensure that the drill bit is not excessive wear. 5, because blocks and holes may lead to stuck, it should be used regularly blower blower, regular cleaning hole bottom. 6, in the post process, rock ballast and various impurities will fall into the impactor, it is necessary to cover the loose end of the threaded rod to ensure that the drill pipe is not sticky rock and dust. 7, the impact of the rational lubrication can never be ignored, otherwise, will accelerate the impact of the wear and tear or even damage. Trouble shooting: Fault Fault: premature wear or damage caused by insufficient or no lubrication of lubricant Poor or no lubrication, cause cause: the impact of the lubricant can not reach the impactor structure Remedy : Check the lubrication device, from the top of the impactor oiling down or increase the gas content of gas Fault (B): Impact structure does not work or not working properly Cause: 1. Gas is blocked 2. Pistons and the inner and outer cylinder Between the piston and the seat is too large gap 3. The impactor is blocked by dirt 4. Pistons or shank tail pipe rupture troubleshooting Remedy: 1. Check the air pressure, check the air flow is unobstructed 2. Disassemble the impactor, Check wear and tear, replace worn parts. 3. Disassemble the impactor and clean all the internal parts of the impactor 4. Disassemble the impactor and replace the piston or the drill Fault Fault (3): The drill bit and the solder drill sleeve fall off Cause: No right-handed exclusion during impactor operation Remedy : Hook the parts off and make sure to turn right when drilling and lifting.
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