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Points To Note When Working With Reaming Bit

Update:24-12-2020
Abstract:  1. When opening the eye, it should be rotated slowly, after the drilling depth of the hole reaches 10-15mm, then gradu...

  1. When opening the eye, it should be rotated slowly, after the drilling depth of the hole reaches 10-15mm, then gradually turn to full operation. In the process of rock drilling, the drill rod should be designed to move straight forward according to the hole position and be located in the center of the hole.

  2. The shaft thrust should be adjusted reasonably when drilling rock. If the shaft thrust is too small, the machine will bounce back, the vibration will increase, and the drilling efficiency will be reduced; if the shaft thrust is too large, the drill bit will tighten the fundus, which will cause the machine to run under overload, which will wear parts prematurely and slow down the drilling speed.

  3. When the reaming bit is clamped, the thrust of the shaft should be reduced to gradually become normal. If it is invalid, shut down immediately. First, use a wrench to slowly rotate the drill rod, and then turn on the medium air pressure to slowly rotate the drill rod. It is forbidden to use the method of striking the drill rod.

  4. Frequently observe powder discharge. When the powder discharge is normal, the mud will flow out slowly along with the orifice; otherwise, blow the hole forcefully. If it is still invalid, check the water hole and the status of the shank of the drill, then check the condition of the water needle, and replace the damaged parts.

  5. Pay attention to the oil storage and oil output, and adjust the oil volume. When working without oil, the parts will wear out prematurely. When the lubricating oil is too much, it will cause pollution of the working surface.

  6. Pay attention to the sound of the machine during operation, 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 it is abnormal.

  8. Pay attention to the rock conditions, avoid perforating along with the bedding, joints, and cracks, do not punch the broken eyes, and observe at any time for the danger of roof fall and partial side.

  9. Use the hole-opening function effectively. In the process of drilling, an important part is the opening. The opening is completed by reducing the impact of pressure and adjusting the propulsion pressure. The propulsion pressure should be as small as possible, so as to make holes on the rock surface with a very large slope, and to avoid bending the drill pipe.