ADAPTATION TOOL SET FOR DIAMOND DRILLING, IN DRILLING EQUIPMENT

摘要

ADAPTATION IN TOOL SET FOR DIAMOND DRILLING, IN DRILLING EQUIPMENT, where the drill bit (1) has its internal diameter increased, from 63, mm to 67.2 mm, maintaining, however, the external diameter with 95, 7 mm, thus gaining reduced thickness of its cutting blade so that, during the drilling work, in rotation, after activating the drilling rig's drilling set, it has greater speed and greater efficiency when drilling the rock, maintaining the same hole diameter made, 95.9mm, also removing a larger core volume. This required an adjustment in the measures of the spring box (11), which has the thickness of its outer diameter, 73mm and its inner diameter, 65mm, increased to 74.3mm in the outer diameter and 68.3mm in the diameter respectively internal. The inner tube (13), also, has the thickness of its outer diameter, 73mm and its inner diameter, 66.7mm, increased to 74.3mm in the outer diameter and 69.3 in the inner diameter respectively. The changes do not interfere with the measurements of the outer tube (5) of the drilling set, whose thickness is maintained, both for the outer diameter of 92.1 mm and for the inner diameter of 77.8 mm, allowing the adaptation in question is normally installed (...).