Exploration-sampling drilling system
Patent
·
OSTI ID:6424294
A mobile, exploration mineral sample drilling rig is described comprising a mobile carrier, a drill mast mounted on the mobile carrier, drill mast mounting means adjustably mounting the drill mast on the carrier whereby sample holes may be drilled at various positions around the carrier and at various angles, and a drill head mounted by the drill mast: the drill mast comprising a drill head frame, a mast support frame connected to the upper and bottom portions of the drill head frame and positioning the drill head frame outwardly from the carrier, the drill mast mounting means being operably-connected to and extending inwardly of the mast support frame; the drill bead frame comprising a pair of side beams, an upper cross beam connecting the upper portions of the side beams, a generally V-shaped lower cross beam connecting the lower portions of the side beams with its apex oriented downward, the lower cross beam having an opening there through; the drill head being so constructed and arranged that it is slidably mounted to and between the drill head frame side beams to define a drill string axis as extending longitudinally of the drill head frame side beams, between the planes formed by the inner and outer faces of the drill head frame side beams, and through the lower cross beam opening; the mast support frame being so constructed and arranged that it is positioned inwardly from the drill head frame a sufficient distance that the drill head and any apparatus or piping or hosing associated therewith may traverse the drill head frame side beams free of interference from the mast support frame and its connections to the drill head frame; the drill mast mounting means including trunnion means slidably mounting the mast support means whereby the drill mast may be moved upwardly and downwardly relative to the trunnion means, being so constructed and arranged to provide a pivot axis about which the drill mast may be rotated relative to the trunnion means.
- Assignee:
- IMS; EDB-93-087835
- Patent Number(s):
- A; US 5213169
- Application Number:
- PPN: US 7-656219
- OSTI ID:
- 6424294
- Country of Publication:
- United States
- Language:
- English
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