Water treatment pad for drilling tool

• Main Authors: TAKANO, YOSHIYUKI, KATAGIRI, FUJIO
• Format: Patent
• Language: English; French; German
• Published: 31.10.2012
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE; WORKING STONE OR STONE-LIKE MATERIALS

There is provided a water treatment pad for a drilling tool capable of being fixed quickly and firmly. The present invention provides a water treatment pad for a drilling tool, which is installed on a drilling surface of an object to be drilled when a hole is drilled in the object by using the rotating drill tool while machining water is supplied. The water treatment pad includes a substantially cylindrical pad body having a drain in the side surface thereof and mounted in a manner that surrounds the drilling tool, and a cylindrical diffuser ring detachably fixed in the pad body in a manner that surrounds the drilling tool to accelerate a fluid therein and release the fluid to the outside. On the end surface of the diffuser ring which comes into contact with the drilling surface, convex-shaped blades the transverse cross section of which has an airfoil profile tilting in the rotative direction of the drilling tool are arranged in an aligned manner. On a plane defined by the distance between the adjacent blades and the heights of blades, the relationship between the area (S 1 ) on the inner surface side of diffuser ring and the area (S 2 ) on the outer surface side of diffuser ring is S 1 <S 2 .