Claims
- 1. A feed storage for drill rods for a long-hole drilling apparatus, said feed storage comprising
- a magazine provided with
- fixed guides for storing the drill rods in the direction parallel to each other;
- a delivery opening defined by said guides for transferring drill rods one at a time in and out of the guides;
- a feed device provided with gripping means extending in between the drill rods positioned in the guides for feeding the drill rods in the guides towards and away from said delivery opening;
- a transfer device having at least one transfer arm provided with gripping jaws and mounted pivotably on a pivot shaft, said pivot shaft fixed with respect to said magazine so that said gripping jaws are displacable transversally with respect to the axial direction of the drill rods between the delivery opening of the guides and drilling axis of the drilling apparatus;
- said feed storage further comprising
- the guides of the magazine form between themselves at least one straight feed chute for guiding the drill rods having their axes in the same plane;
- the feed device having at least one pair of feed plates carrying out simultaneous movements in opposite directions;
- at least one pair of the feed plates of the feed device is comb-shaped, said feed plates of said pair mounted side by side on separate pivot shafts of two crankshafts located at a distance from each other and extending perpendicularly to the plane of the feed plates so that the feed plates are simultaneously displaceable in opposite directions with respect to each other along concentric circular arcs;
- edges of the feed plates facing the guides provided with notches, said notches separated by the gripping cams for the drill rods, said gripping cams of each feed plate extend into the feed chute of the guides when the pivot shafts of said feed plates rotate towards the guides and locate outside the feed chute when said pivot shafts rotate away from the guides; and
- the transfer arm is pivoted so that the gripping jaws are displaced along a circular arc between the delivery opening of the guides and the drilling axis.
- 2. A feed storage according to claim 1, wherein the guides (11) form two feed chutes (12) spaced apart in the direction of said drilling axis and located in planes perpendicular to the pivot shaft (30) of the transfer arm (29).
- 3. A feed storage according to claim 1, wherein the diameter of the circle of rotation of the pivot shafts (25, 26) of the feed plates (18, 19) is greater than one half of the diameter of the drill rod (13).
- 4. A feed storage according to claim 1, wherein the transfer device (9) comprises two transfer arms (29) located at a distance from each other in the direction of said drilling axis (A).
- 5. A feed storage according to claim 1, wherein said delivery opening (14) is provided with a closing plate (15) by means of which said opening can be closed at least partly so as to prevent a drill rod (13) located in said chute (12) at the delivery opening (14) from being displaced out of said chute.
- 6. A feed storage according to claim 1, wherein the transfer arm closes the delivery opening of the guides when the transfer arm is pivoted to a position in which the gripping jaws are located on said drilling axis.
- 7. A feed storage according to claim 1, wherein the transfer arm has V-shaped configuration.
Priority Claims (1)
Number |
Date |
Country |
Kind |
821875 |
May 1982 |
FIX |
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Parent Case Info
This is a continuation of co-pending application Ser. No. 488,737 filed on Apr. 26, 1983, now abondoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
57-184006 |
Nov 1982 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
488737 |
Apr 1983 |
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