Drill Adaptor

Abstract

A drill adaptor that offers a simple solution for drilling large diameter holes in the earth with a small to mid-sized excavator. The drill adaptor allows drilling to occur on un-level ground as it can move side to side, front to back, and vertically up and down. The drill adaptor is comprised of a slide tube that moves the drill attachment up and down, side to side, and front to back. The drill adaptor uses pins to secure the inner, outer, and lower pivot housings. The inner and outer pivot housing allows the slide tubews front to back and side to side motion as the lower pivot housing connects to the drill attachment and or drill rotator. The drill adaptor uses a cable and winch system that can also be exchanged for a rack and pinion system to complete the vertically up and down movements of the drill attachment. This drill adaptor allows for an efficient and compact means of drilling large diameter holes in un-level drilling surface within the earth.

1 . A drill adapter, comprising:
 A slide tube that is generally made from metal and its length may vary depending on the intended use; an outer pivot housing typically made from either built up plate steel, casting, or machined from a block of steel; an inner pivot housing typically made from either built up plate steel, casting, or machined from a block of steel; a lower pivot housing typically made from either built up plate steel, casting, or machined from a block of steel; a cable winch that is typically hydraulically powered, but can be powered by other means; a cable that is usually steel cable; pins to secure the outer pivot housing to the boom, the inner pivot housing to the outer pivot housing, and to pin the lower pivot housing onto either the drill attachment or rotator; and two pulleys used to help raise the slide tube vertically up and down with the winch and cable.   
     
     
         2 . A method for drilling large diameters holes in the earth with the use of an adapter to connect large drilling attachments too small to mid-sized excavators. Said adapter allows drilling to occur on un-level drilling surfaces as said adapter can pivot front to back, side to side, and raise or lower the drilling attachment via winch and cable system. 
     
     
         3 . A drill adapter that instead of using a winch and cable system stated in  claim 2  can be raised and lowered via rack and pinion. The hydraulic winch would be exchanged for a hydraulic motor and the slide tube would have a rack gear connected to it.