Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...
Patent
1995-12-28
1997-11-18
Neuder, William P.
Boring or penetrating the earth
With magazine for successively moving unconnected, oriented...
175 85, E21B 1900
Patent
active
056878044
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an equipment for handling drill rods, comprising a slot-like storage space intended for drill rods and having an outlet opening; a closing device for closing the outlet opening of the storage space; a displacing arm for displacing the drill rods between the outlet opening of the storage space and a drilling centre by a liner displacing movement; a power means for displacing the displacing arm; a gripping jaw connected to the displacing arm turnably about a transverse axis for gripping and holding the drill rod; and a power means for turning the gripping jaw to a gripping position and away from it.
Long-hole drilling utilizes drill rods or steels stored in various storage means, such as rotating cartridges, from where the rods are displaced to a drilling centre by very complicated displacing means. As used in this patent application and claims, drill rods refer to drill rods, drill steels, drill pipes, and other similar rod-like components used in long-hole drilling. Typically, a rod is displaced by a turning movement, whereby arms turnable about an axis parallel with the drilling axis displace the rod to the drilling centre or away from it. Very complicated functions and devices are required to carry out this operation. Such devices are difficult to use and expensive to produce, and their complexity causes a constant risk of disturbance. Such disturbances are typically caused by the rotatory movement of the rod cartridge, the clamping movement of the rod displacement arms for clamping the rods, and the turning movement of the arms from one position to another. Such solutions are disclosed e.g. in British Patents 1 196 159 and 1 290 297 and U.S. Pat. No. 3,420,319. The first-mentioned patent specification discloses a solution where rods are positioned in a curved cartridge, from which they are displaced to the drilling centre by three separate curvilinear movements, which makes the equipment difficult to control.
British Patent 1 290 297 in turn discloses a solution where oil-drilling pipes are stored in a straight cartridge, and they are displaced to the drilling centre by a separate, linearly movable displacing means. The solution requires a separate complicated mechanism for controlling stored pipes during the displacing movement, and it is difficult to use. The displacing means of the equipment disclosed in the above-mentioned patent is described more fully in British Patent 1 301 430, from which it appears that the solution comprises a plurality of different gripping means and closing arrangements, while the pipes, however, are able to move longitudinally of the storage when the storage is not full.
U.S. Pat. No. 3,420,319 in turn discloses a solution where drill pipes are stored in a straight storage container, and they are displaced to the drilling centre by displacing the drill pipe cartridge.
A further disadvantage of the prior art solutions is that to learn to control several successive movements in normal drilling is time-consuming and causes risk situations at work. In the same way, all additional movements increase the waste time in the handling of a drill rod, thus making the drilling process slower. Moreover, when turnable arms are used, they have to be interconnected mechanically by a connection pipe or the like in order that they would turn simultaneously. Correspondingly, the arms have to be mounted turnably with respect to the frame, which makes the structure expensive and heavy.
An object of the present invention is to provide an equipment for handling drill rods, which allows drill rods to be stored reliably and safely and which allows the rods to be controlled all the time. Another object of the invention is to provide an equipment which is simple and easy to realize. The invention is characterized in that the closing device and the displacing arm are mounted transversely movably with respect to each other so that when the displacing arm has been moved towards the drilling centre or when the gripping jaw is open, they together close the outlet opening of the st
REFERENCES:
patent: 3420319 (1969-01-01), Lincoln et al.
patent: 3835938 (1974-09-01), Moody et al.
patent: 4632618 (1986-12-01), Issakainen
patent: 4892160 (1990-01-01), Schivley, Jr. et al.
patent: 5174389 (1992-12-01), Hansen
Lappalainen Juhani
Piipponen Juha
Neuder William P.
Tamrock Oy
LandOfFree
Equipment for handling drill rods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Equipment for handling drill rods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equipment for handling drill rods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1559185