Automatic leveling system for blasthole drills

Details Automatic leveling system for blasthole drills Automatic leveling system for blasthole drills

E - Fixed Constructions

21

B

E21B 7/00 (2006.01) F15B 11/00 (2006.01) F15B 21/00 (2006.01)

Patent

CA 2129590

An automatic leveling system for a blasthole drill or the like, the system comprising a jack including a cylinder, and a piston dividing the cylinder into first and second chambers, a pump having an outlet, a fluid source, a first conduit having one end communicable with the pump outlet and having an opposite end communicating with the first chamber, a second conduit having one end communicating with the second chamber and having an opposite end communicable with the fluid source for returning fluid from the second chamber to the fluid source, and a regeneration valve for selectively diverting fluid from the second conduit to the first conduit when fluid from the pump is being supplied to the first chamber via the first conduit.

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