WO2017016890A1 - Foret à glace - Google Patents

Foret à glace Download PDF

Info

Publication number
WO2017016890A1
WO2017016890A1 PCT/EP2016/066780 EP2016066780W WO2017016890A1 WO 2017016890 A1 WO2017016890 A1 WO 2017016890A1 EP 2016066780 W EP2016066780 W EP 2016066780W WO 2017016890 A1 WO2017016890 A1 WO 2017016890A1
Authority
WO
WIPO (PCT)
Prior art keywords
ice drill
cutting plate
cutting
ice
drill
Prior art date
Application number
PCT/EP2016/066780
Other languages
German (de)
English (en)
Inventor
Andreas Eberhard
Original Assignee
Johann Eberhard Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johann Eberhard Gmbh filed Critical Johann Eberhard Gmbh
Priority to EP16747869.2A priority Critical patent/EP3289162B1/fr
Publication of WO2017016890A1 publication Critical patent/WO2017016890A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/008—Drilling ice or a formation covered by ice
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

Definitions

  • the invention relates to an ice drill according to the preamble of
  • Ice drills are drills which are designed and designed to drill holes in snow, ice or mixed conditions of snow and ice. Such drills are therefore used mostly in the wild, with a typical
  • Known ice drills are similar to a longitudinally twisted sheet metal strip, which has at one end a clamping area for placement in the chuck of a drill, and which has at the other end a cutting area, which is formed integrally with the helical part.
  • an ice drill which has a plastic body, and a tip made of hard metal.
  • the object of the invention is therefore to provide an ice drill of the type mentioned, with which the mentioned disadvantages can be avoided, and which simplifies the drilling of holes in snow or ice in the mountains.
  • an ice drill can be created, which has a low mass, and is transportable in the mountains with little effort.
  • icebreaker concerned only requires a low drive power, whereby the battery of a Akkubohrmaschine is only slightly loaded, and can be drilled with a single charge a large number of holes before the battery in question must be renewed.
  • the transport effort continues to decrease, since no replacement battery must be carried, whereby the drilling of holes in ice or snow in the mountains or under Arctic conditions is further simplified.
  • the torsional stiffness of thechtmetallgrundkorpers has got along with the cutting performance of Hard metal cutting plates proved to be advantageous for the required drive power.
  • the subject ice drill has a long life and a high security against breakage, whereby the risk of injury decreases.
  • FIG. 1 shows a first embodiment of an objective ice drill in plan view
  • FIG. 2 shows the ice drill according to FIG. 1 in elevation
  • FIG. 3 shows a second embodiment of an objective ice drill in plan view
  • FIG. 4 shows the ice drill according to FIG. 3 in elevation
  • FIG. 5 shows a third embodiment of an objective ice drill in plan view
  • Figs. 1 to 5 each show an ice drill 1 with a one-piece
  • Light metal base body 2 which light metal base body 2 has a helical part 3 and a subsequent to the helical part 3 cutting part 4, wherein the cutting part 4 at least one hard metal cutting plate 1 1, 12, 13, which is interchangeable attached to the light metal base body 2.
  • an ice drill 1 can be created, which has a low mass, and is transportable in the mountains with little effort.
  • Ice drill 1 concerned requires only a low drive power, whereby the battery of a battery drilling machine is only slightly loaded, and with a
  • the torsional rigidity of the light metal base body 2 has proved to be advantageous for the required drive power together with the cutting performance of the carbide cutting plates 1 1, 12, 13.
  • the subject ice drill 1 has a long life and a high security against breakage, whereby the risk of injury decreases.
  • the subject ice drill 1 is intended for drilling holes in snow, ice and mixed conditions between snow and ice, such as firn.
  • the ice drill 1 is provided in particular for operation with a machine, therefore a drill, in particular a Akkubohrmaschine.
  • a manual operation, such as by means of a hand crank, is preferably not provided.
  • the ice drill 1 has a one-piecechtmetallgrundkorper 2.
  • An aluminum alloy for example from the AlZnMgCu alloy group, is preferably provided as the light metal alloy.
  • titanium alloys such as TiAl6V6Sn2 or TiAl4Mo4Sn2, or magnesium alloys, such as MgAl6Zn or MgAl8Zn, are preferably provided.
  • the Weinmetall groundkorper 2 has a helical part 3 and a cutting part 4, wherein - in the longitudinal extension or in the direction of a rotation axis 16 of the ice drill 1, the cutting part 4 is arranged adjacent to the helical part 3 or formed.
  • the coil part 3 at least a first coil 6 and a second coil 7, wherein a larger number of coils 6, 7 may be provided.
  • the coils 6, 7 may have different cross-sectional shapes, wherein it is preferably provided that all coils 6, 7 of an ice drill have identical cross-sectional shapes.
  • cross-sectional shapes can be provided, which are bordered by straight lines and / or curves.
  • the subject ice drill 1 is based on the two preferred
  • Embodiments with two coils 6, 7 described. Embodiments with a larger number of coils 6, 7 are preferably according to the first embodiment of an ice drill 1 according to FIGS. 1 and 2 form.
  • the light metal base body 2 or in particular the helical part 3 has a so-called. Soul 5 on.
  • the core 5 is a region arranged around the axis of rotation 16 of the ice drill 1, which in particular has a substantially circular cross-section and to which the coils 6, 7 are integrally formed or together with which the coils 6, 7 are integrally formed are formed. Seen alone, the core 5 preferably has the shape of a cylinder.
  • the light metal base body 2 is produced by milling from a semi-finished light metal, wherein a production by die casting may also be provided.
  • the coils 6, 7 each preferably have an im
  • a width of the first coil 6 and / or the second coil 7 at the transition of the respective coil 6, 7 to the soul 5 is less than a diameter of the soul 5.
  • the width in question is smaller, as a Radius of the soul 5.
  • the core 5 has a diameter which is 2.5 to 3.5 times as large as a width 20 of the first and / or second coil 6, 7.
  • the coils 6, 7 therefore have a relative to Diameter of the soul 5 large width 20.
  • the width 20 of the coils 6, 7 is to be determined in a classical manner by means of a caliper, and entered in Fig. 2.
  • Light metal base body 2 denotes, which has or carries the cutting edges of the ice drill 1.
  • the cutting part 4 is then arranged on the helical part 3 of the light metal base body 2. In this case, the helical part 3 passes directly into the cutting part 4.
  • the cutting part 4 has at least one carbide cutting plate 1 1, 12, 13, which is removably attached to the light metal base body 2. It is preferably provided that the at least one hard metal cutting plate 11, 12, 13 is screwed to the cutting part 4. It is particularly preferably provided that each carbide cutting plate 11, 12, 13 with at least one
  • the at least one fastening screw 21 is designed as a nickel-plated steel screw.
  • first helix 6 in the cutting part 4 merges into a first carbide cutting plate holder 9 of the cutting part 4, and that the second helix 7 in the cutting part 4 merges into a second carbide cutting plate holder 10 of the cutting part 4.
  • first coil 6 is formed in the cutting part 4 as the first carbide cutting plate holder 9 of the cutting part 4, and that the second coil 7 is formed in the cutting part 4 as a second carbide cutting plate holder 10 of the cutting part 4.
  • the carbide cutting plate holders 9, 10 thereby close off the respective helix 6, 7 at one end of the ice drill 1.
  • the carbide cutting plate holders 9, 10 are designed to be one Carbide cutting plate 11, 12, 13 to take or wear.
  • Carbide cutting plates 11, 12, 13 are known per se, and are known per se.
  • inserts for example, also referred to as inserts. These are widely used in metal cutting, for example.
  • the inserts are widely used in metal cutting, for example.
  • Carbide cutting plate holder 9, 10 a contact surface for a
  • the carbide cutting plate 11, 12, 13 is in a conventional manner to the carbide cutting plate holder 9, 10th
  • the contact surface is arranged substantially parallel to the axis of rotation 16 of the ice drill 1.
  • a groove is preferably arranged, which supports the removal of the overburden from the wellbore.
  • Figs. 1 and 2 show a first embodiment of an objective
  • Ice drill 1 a first hard metal cutting plate 12 is attached to the first carbide cutting plate holder 9.
  • a second carbide cutting plate 13 different from the first carbide cutting plate 12 is attached.
  • the two hard metal cutting plates 12, 13 are spaced from each other to when drilling a hole and the corresponding
  • a first cutting edge 14 of the first hard metal cutting plate 12 and a second cutting edge 15 of the second hard metal cutting plate 13 are each spaced from a rotation axis 16 of the ice drill 1.
  • Carbide cutting plates 12, 13 and their respective cutting edges 14, 15 is therefore a distance or an exemption range arranged. It has been shown that this achieves a particularly good drilling performance of the ice drill 1 can.
  • a ring width of the annular region is between 35% and 40% of an overall diameter of the ice drill 1.
  • the circular center area which is not cut by the hard metal cutting plates 12, 13 therefore has a diameter between 20% and 30% of the total diameter of the ice drill 1.
  • first cutting edge 14 and the second cutting edge 15 are each formed convex, in particular substantially circular, for cutting a rounded annular groove.
  • 1 shows correspondingly formed cutting edges 14, 15. It has been shown that cutting edges 14, 15 of this kind have a high cutting performance in ice compared with conventionally pointed drills, and enable a good removal of the overburden.
  • first hard metal cutting plate 12 and the second hard metal cutting plate 13 are each arranged substantially parallel to the axis of rotation 16 of the ice drill 1.
  • FIG. 5 shows a third embodiment of an exemplary ice drill 1, wherein the first hard metal cutting plate 12 and the second hard metal cutting plate 13 are respectively directed towards the axis of rotation 16 of the ice drill 1 or arranged obliquely. It is provided in particular that a substantially straight
  • a chisel-like center region 17 is arranged in the area between the first hard metal cutting plate 12 and the second hard metal cutting plate 13.
  • the chisel-like center region 17 has, in particular, the shape of a wedge whose edge points in the direction of the cutting edges 14, 15.
  • the chiselike center region 17 has, in particular, the shape of a wedge whose edge points in the direction of the cutting edges 14, 15.
  • Center region 17 is preferably spaced apart from the first cutting edge 14 and / or the second cutting edge 15 in the direction of helix part 3, in particular by 35% to 40% of the total diameter of the ice drill 1.
  • the chisel-like center region 17 thereby grinds the part of the ice which is not cut by the cutting edges 14, 15. However, when cutting the annular area, the breakage of the ring occurs
  • the first cutting edge 14 and the second cutting edge 15 are at least partially, in particular substantially over half their width, extending toward the chisel-like center region 17.
  • FIGS. 3 and 4 show a second embodiment of a concrete ice drill 1.
  • the at least one hard metal cutting plate 1 1, 12, 13 is formed as a single, continuous carbide cutting plate 1 1, which on both the first
  • Hard metal cutting plate holder 9 and the second carbide cutting plate holder 10 is attached.
  • This embodiment has by the single, continuous cutting plate 1 1 a simpler structure.
  • the carbide cutting plate holder 9, 10 are formed such that both the arrangement of two carbide cutting plates 12, 13 according to the first embodiment, as well as the arrangement of only a single common cutting plate 1 1 corresponding to the second
  • Embodiment is possible.
  • a shaft 8 is connected thereto.
  • the shaft 8 is for fastening the
  • Ice drill 1 provided on a drill.
  • the shaft 8 may be formed differently in terms of its geometry, in particular, the shaft may be cylindrical or formed as a regular prism with three or six side surfaces, or according to the SDS Plus or SDS Max system.
  • the shank 8 is preferably interchangeably connected to the light metal base body 2, in particular screwed thereto, whereby an adaptation of the Ice drill 1 to different chucks different drills is possible.
  • a lock nut or another screw locking element can be provided.
  • the subject ice drill 1 is integrally formed except for the shank 8 and the at least one hard metal cutting plate 1 1, 12, 13.
  • the Weinmetallgrundkorper 2 at least partially, in particular substantially completely, has an anodized surface.
  • the ice drill 1 can be colored by means of such a surface treatment. This is an important aid in the loss of the field work in the mountains or on expeditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Adornments (AREA)

Abstract

L'invention concerne un foret à glace (1) présentant un corps de base (2) en métal léger monobloc. Selon l'invention, le corps de base (2) en métal léger présente une partie hélicoïdale (3) et une partie de coupe (4) adjacente à la partie hélicoïdale (3), et la partie de coupe (4) présente au moins une plaque de coupe (11, 12, 13) en métal dur qui est fixée au corps de base (2) en métal léger pour pouvoir être échangée.
PCT/EP2016/066780 2015-07-27 2016-07-14 Foret à glace WO2017016890A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16747869.2A EP3289162B1 (fr) 2015-07-27 2016-07-14 Foret à glace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA500/2015 2015-07-27
AT5002015 2015-07-27

Publications (1)

Publication Number Publication Date
WO2017016890A1 true WO2017016890A1 (fr) 2017-02-02

Family

ID=56609851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/066780 WO2017016890A1 (fr) 2015-07-27 2016-07-14 Foret à glace

Country Status (3)

Country Link
EP (1) EP3289162B1 (fr)
AT (2) AT15312U1 (fr)
WO (1) WO2017016890A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409880A1 (fr) * 2017-05-29 2018-12-05 Intercable GmbH Foret à glace hybride

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213170A (en) * 1992-04-28 1993-05-25 Savitski Richard H Footing auger
WO2006062453A1 (fr) * 2004-12-06 2006-06-15 Mora Of Sweden Ab Trepan pour le forage de la glace
US20060254818A1 (en) * 2005-05-12 2006-11-16 Pepple Gregory A Ice cutter
US7946355B1 (en) * 2007-01-08 2011-05-24 Kluge Douglas J Auger assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786876A (en) * 1971-06-24 1974-01-22 A Aaltonen Ice auger
US5915485A (en) * 1997-01-13 1999-06-29 Mcatavey; Dennis B. Ski post hole auger bit
DE19942987A1 (de) * 1999-09-09 2001-03-15 Hilti Ag Bohrwerkzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213170A (en) * 1992-04-28 1993-05-25 Savitski Richard H Footing auger
WO2006062453A1 (fr) * 2004-12-06 2006-06-15 Mora Of Sweden Ab Trepan pour le forage de la glace
US20060254818A1 (en) * 2005-05-12 2006-11-16 Pepple Gregory A Ice cutter
US7946355B1 (en) * 2007-01-08 2011-05-24 Kluge Douglas J Auger assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409880A1 (fr) * 2017-05-29 2018-12-05 Intercable GmbH Foret à glace hybride

Also Published As

Publication number Publication date
EP3289162A1 (fr) 2018-03-07
EP3289162B1 (fr) 2019-04-10
AT15436U2 (de) 2017-08-15
AT15436U3 (de) 2018-10-15
AT15312U1 (de) 2017-05-15

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