There are also many things that need to be paid attention to when working with a rock drill. I will tell you about them below.
1. When opening the hole, it should be rotated slowly. After the depth of the hole reaches 10-15mm, it should be gradually turned into full operation. During the rock drilling process, the drill rod should advance in a straight line according to the hole position design and be located in the center of the hole.
2. When drilling rock, the shaft thrust should be tested reasonably. If the shaft thrust is too small, the machine will rebound, the vibration will increase, and the rock drilling efficiency will decrease; if the shaft thrust is too large, the drill bit will press against the bottom of the hole, causing the machine to operate under overload, which will easily wear parts prematurely and slow down the rock drilling speed. .
3. When the rock drill is stuck, the shaft thrust should be reduced to gradually return to normal. If it is invalid, the machine should be shut down immediately. First use a wrench to slowly rotate the drill rod, and then turn on the medium air pressure to make the drill rod rotate slowly. It is forbidden to knock the drill rod.
4. Observe the powder discharge situation frequently. When the powder discharge is normal, the mud will slowly flow out along the hole; otherwise, the hole must be blown forcefully. If it still doesn’t work, check the condition of the drill’s water hole and drill tail, then check the condition of the water needle, and replace damaged parts.
5. Pay attention to the oil reserves and oil output, and adjust the oil injection amount. When operating without oil, it is easy for parts to wear prematurely. When there is too much lubricating oil, it will cause contamination of the working surface.
6. When operating, you should pay attention to the sound of the machine, observe its operation, find problems, and deal with them in time.
7. Pay attention to the working status of the drill and replace it in time if there is any abnormality.
8. When operating an upward rock drill, pay attention to the air supply volume of the air leg to prevent accidents caused by the rock drill swinging up and down. The support point of the air leg must be reliable. Do not hold the machine too tightly, and do not ride on the air legs to prevent injury or damage to the machine.
9. Pay attention to the rock condition, avoid perforating along bedding, joints and fissures. It is forbidden to drill holes, and observe at any time whether there is any danger of roof collapse or fragmentation.
10. Use the hole opening function effectively. In the drilling process, an important link is opening the hole, which is completed with reduced impact pressure and fixed pushing pressure. The propulsion pressure should be as low as possible to facilitate opening holes in rock faces with very steep slopes.
At the same time, it can also prevent the drill pipe from bending.
The above are the issues that should be paid attention to when working with rock drills in stone mining machinery. I hope it can be helpful to everyone.
Post time: May-23-2024
