| 摘要 |
<p>The apparatus comprises means, for use with an earth drilling machine, effecting powered handling of drill rods for moving drill rods from an earth drilling machine to a horizontal storage position, and vice versa. The primary components of the apparatus comprise powered, parallel, double-linkage arms for moving drill rods, by means of gripping assemblies carried by the arms, in a vertical disposition, or in inclined dispositions: from vertical to 30 DEG from horizontal, through an arc between a location alongside the machine, and a location within the machine (for alignment therein of the drill rod with a drill head or drill rod string). Included is an elevating, powered, tilt cradle having a platform for receiving a drill rod horizontally thereupon. The cradle has uprights set on one side thereof to prevent drill rods from sliding off the platform. Additionally, the cradle has a stop which abuts the lowermost portion of the drill rod to prevent axial displacement of the rod on the cradle. The stop also correctly positions the drill rod, longitudinally on the cradle, for a proper clasping of the drill rod by the gripping assemblies. Further, the cradle has a two-part, pin-type closure, webbed strap to aid in securing the cradle-borne rods.</p> |
