DTH hammer should always pay attention to the maintenance and lubrication of the machine to reduce its failures. Although the maintenance will reduce the failures correspondingly, there will still be certain failures. DTH hammers sometimes experience stuck drill failures, so this failure is generally caused. What are the reasons?

　　1, drill bit broken wing

　　2. The new drill bit has a larger diameter than the original one;

　　3. The displacement of the machine or the deviation of the drilling tool in the hole during rock drilling;

　　4. Rocks fall from the wall or hole or encounter large cracks or caves during rock drilling;

　　5. Dust is not easy to be discharged in areas with mud and rocks;

　　6. ​​Negligence in operation. When drilling was stopped for a long time, the rock dust was not blown off or the drilling tool was not lifted so that the impactor was buried by the rock dust;

　　Treatment method: As far as the strength of the drill bit is concerned, broken wings have been eliminated. In case of special circumstances, a seamless pipe with a diameter similar to the hole diameter can be used. The pipe is filled with butter, asphalt, etc., connected to the drill pipe, and entered into the bottom of the hole. , Take out the broken wing at the bottom of the hole, and blow off the rock dust at the bottom of the hole before salvaging. In more serious cases, the drill tool cannot be lifted or put down, and the impactor does not sound. At this time, only torque or auxiliary tools can be used to help the drill tool rotate, and then the drill tool must be lifted while air is supplied until it fails. Until it is lifted. When re-drilling, first apply a little pressure, then a little pressure, and then gradually increase the propulsion force until the normal working pressure is reached.