The cause of the DTH drilling machine card drill
Author:kaishan Time:2017-06-20
The cause of the DTH drilling machine card drill
DTH drilling machine should pay attention to the maintenance and lubrication of the machine, you can reduce the failure Although the maintenance will be reduced after the corresponding failure, but there will be some failure, the DTH drilling machine sometimes occurs stuck failure, then cause this failure Of the general reasons for what?
1, drill bit wings
2, the new drill for the larger than the original diameter;
3, when the machine displacement or drilling in the hole skew;
4, when the rock wall or hole drop stones or encounter large fissures, cave;
5, in case of mud with stone dust is not easy to discharge;
6, the operation of negligence, a long time to stop drilling, no blooming rock powder, did not mention the drill, so that the impact was buried rock powder;
Treatment method: the current strength of the drill head, broken wing has been basically put an end, in the event of special circumstances, can be used with a diameter and diameter of the same seamless tube, tube filled with butter, asphalt and other objects, and drill pipe into the hole , The hole at the end of the broken wing to take out, before the first hole at the bottom of the rock powder blowing. More serious cases of drilling tools can not be put up, put down, the impactor does not ring, this time only with external torque or auxiliary tools to help lift, so that drilling tools, and then to the gas, while lifting the drill, until the fault Release so far. When re-drilling, the first pressure, and then a little pressure, and then gradually increase the propulsion, until the normal working pressure
For additional information on DTH drilling machines, please follow the news.