WO1996006698A1 - Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such device - Google Patents
Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such deviceInfo
- Publication number
- WO1996006698A1 WO1996006698A1 PCT/NO1995/000145 NO9500145W WO9606698A1 WO 1996006698 A1 WO1996006698 A1 WO 1996006698A1 NO 9500145 W NO9500145 W NO 9500145W WO 9606698 A1 WO9606698 A1 WO 9606698A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- stamping
- core drill
- tonge
- piston
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
- E21B10/485—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
Definitions
- Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such device.
- the present invention relates to clean cutting and segment groove cutting of core drill pipes and eventually application of the segments (diamond bits) to the pipe.
- a core drill pipe consists of a steel pipe which is closed by welding in the one end, wherein also a device is mounted for attaching the bore to the drilling machine itself, and segments which in the opposite end are mounted in grooves around the circumference.
- the grooves provide for a very good connection of the segment in addition to the hard soldering.
- the segments are thicker than the wall of the pipe for achieving sufficient clearance during the drilling work, resulting in that the pipe in a limited degree is exposed to wear.
- the pipe is a relatively expensive consumer product and therefore it is common to use the pipe several times. This requires a replacement of the diamond segments. This process itself is carried out in that the pipe is cut straight under the segments and that the end of the pipe is provided with new segment grooves.
- a process is achieved wherein the cutting does not create dust and where it is not necessary to replace parts of the tool when changing the pipe dimension.
- the core drill pipe is fixed in a base part (support structure) and thereafter the claw-shaped moveable stamping/ cutting device is lowered down on the pipe end where the worn diamond segments are located, and by repeated punching the complete pipe end is cleaned such that a straight circu ferencial cut is made under the level where the worn segments were located.
- the tool is not fixed in any other way than the operator by means of a handle to a certain degree controlls the punching. This makes it possible for the tool to turn during the punching process, which is necessary for achieving maximum utilization of the specially shaped knife of the tool.
- the knife which is the front part of a stamping piston is shaped such that it firstly will hit and penetrate the pipe in a central area of the width of the knife edge.
- the one half part of the knife edge in its width direction will gradually punch out the pipe in this area, and when this part is punched out, the second half part of the knife edge will gradually punch out the rest of the segment of the pipe which corresponds to the recess opening of the fixed bit.
- the advantage is that the diameter of the pipe is of no meaning for the punching, since the pipe is kept against the fixed bit all the time, and it is not necessary to change the bit for different diameters either.
- the claw-shaped stamping/cutting device is fixedly mounted, but adjustable in the height direction, to a vertical profile which is fixed to a support structure in a jig.
- the core drilling pipe is fixed to a dividing disc (plate) which is mounted on to a sliding system which again is located on the support structure.
- the pipe is turnable, while the stamping/cutting device is fixedly mounted.
- stamping and cutting device including a soldering jig according to the invention, is further described with reference to claim 1.
- fig. 1 shows the complete equipment in a first embodiment form, including fixedly mounted core drill pipe and moveable stamping device
- fig. 2 shows a hydraulic actuated stamping and cutting device mounted on a jig according to the second embodiment of the invention, wherein the stamping/cutting device is fixedly mounted on a profile, but adjustable in the height, and the pipe is turnable mounted in the jig, fig.
- FIG. 3 shows a manually actuated stamping and cutting device mounted on a jig according to the second embodiment form of the invention, wherein the stamping/cutting device is fixedly mounted on the profil, but adjustable in the height, and the pipe is turnable mounted in the jig
- figs. 4a, b and c show the piston having the specially shaped knife edge according to the invention seen from above, from the side and from the front, respectively
- figs. 5a and 5b show the claw-shaped stamping device in an elevational view and in a horisontal view thorugh the knife or the stamping device, respectively, figs.
- 6a - c show the fixed bit of the stamping device and the position of the piston at the beginning, partly completed and completed stamping operation, respectively
- figs. 7a - e show the stepwise method for combined cutting and stamping of segment grooves of an used core drill pipe, in addition to the mounting of segments (diamond bits)
- fig. 8 shows the soldering jig for use when mounting the bits.
- a jig device 15 having a support structure 1 which functions as a fixing unit for the pipe 11 and located on floor level or another suitable base is shown.
- the pipe 11 is vertically fixed on a not further described turnable support in the support structure 1 which allows for a sentrical turning of the pipe 11 in the horizontal plane, by means of the fixing device which is used for fixing the drill pipe to the drilling machine.
- a drive unit is mounted to the support structure 1, which consists of a pneumatic jack 3 which is connected to a hydraulic cylinder 4, and a foot operated maneuovering valve 5 for maneouvering the jack 3.
- the hydraulic cylinder 4 supplies the cylinder 7 of the tool 6 with oil under a pressure which is determined by the mutual piston diameter difference between the jack 3 and the hydralic cylinder 4 when it is influenced by the jack 3.
- the cylinder 7 of the tool 6 forces the knife 8 against the pipe and provides that the desired punching (stamping) is carried out, see figs. 6a - e and 7a - d.
- the edge 12 of the piston 8 is such grinded that it initially will hit and penetrate the pipe 11 in a central area 9 of the edge 12.
- the one width half part 10 of the edge 12 will stepwise punch out the pipe 11 in this area, simultaneously the second penetration area 13 of the knife is driven to the pipe without further punching it.
- the second width half part 14 of the edge 12 will stepwise punch out the rest of the segment groove in the pipe 11.
- the pipe 11 is turned and the next segment groove is punched out until the desired number of grooves are achieved.
- the process will be the same during cutting of the pipe 11, however, the difference will be that the knife 11 will cut slits around the complete pipe diameter on the underside of the grinded segments, such that this parts can be removed.
- FIG. 2 and 3 show a manual and a hydraulic embodiment of the stamping and cutting device 20 according to the invention, respectively.
- figs. 2, 3 it is shown an embodiment of a stamping and cutting device jig 20 comprising a support structure 21 having adjustable feet for location on a solid base, floor etc. , a vertical profile 22 is fixed to the support structure 21, a claw-shaped stamping/ cutting device 6 with a hand operated eccentrical supported level 27 (manual embodiment fig.
- a vertical adjustment of the tonge 6 is allowed along the profile 22 and without the tonge 6 being twisted out of position.
- the vertical adjustment or height adjustment is necessary partly to be able to cut pipe 11 having different lengths and for being able to cut pipe 11 including worn diamond segments.
- the cutting is carried out in that the desired member of segment recesses are cut in suitable distance from the existing, and that the tonge 6 thereafter is elevated to a level which gives the desired segment recess depth, whereafter the area in between the segment recesses are cut away.
- This cutting method is based on that the areas between the segment recesses never are wider than the recesses themselves.
- searcher fixed to the tonge 6 being located in the recess and which the underside of the knife is resting against.
- the choice of searchers is determined by the required depth of the different segments, and the user's need. In order to achieve complete stamping of recesses in all pipe diameters it is necessary that the knife (tonge) 6 and the pipe 11 moves in relation to each other.
- the slide 23 along the length axis of the tonge 6 takes up the movement of the pipe 11 during stamping, simultaneously it is displaceable in the directional axis of the stamping tonge 6 and is displaced according to the diameter of the pipe 11, since the stamping tonge 6 itself always stands still and moves up and down in the length direction of the pipe 11 only. Standard movement will allow stamping of pipes 11 up to a diameter of 600 mm.
- the support structure 21 is provided with a device for mounting of an extension on the slide 23 in order to increase this one. This will substantially be of interest for stationary arrangements.
- the second axis is short and its function is only to allow movement of the pipe 11 against the knife.
- Fig. 6a shows a first phase wherein the point 9 of the knife edge 8 stamping through wall of pipe 11.
- the bit 16 has three inlets 31 with different radii.
- Fig. 6b shows the second phase wherein the pipe 11 twists in relation to the bit 16, and the first punching surface 10 of the piston 8 stamping out the pipe wall on this side of the longitudinally extending section 2 through the thickness of the piston 8.
- the core drill pipe 11 moves around and sidewise against the radius of the bit 16 as the piston 8 cutting through the pipe wall.
- the bit 6 can be rotated for the use of three different radii in order to approach the radius of the core drill pipe 11 as close as possible.
- the first inlet 31 is provided for core drill radii from 15 - 60 mm
- Fig. 6c shows the third phase, wherein the second punching surface 14 of the knife edge 8 penetrates the pipe wall as the pipe 11 twists in relation to the bit 16 in the different direction and punching through the last half part.
- figs. 7a - e and fig. 8 the main phases of cutting, shaping of segment recesses 17 and application of segments (bits) 18 in these segment recesses are described.
- fig. 7a it is shown how the segment recesses 17 are punched out around the circumference of the pipe 11 having the distance and slit width necessary for the segments 18.
- Fig. 7b shows the next step, wherein the stamping tonge 6 is elevated 1 - 3 mm and pointed in between already stamped slits 17.
- Fig. 7c shows the core drill pipe 11 completely stamped between and above the first slit cut.
- Fig. 7a shows the stamping tonge 6 is elevated 1 - 3 mm and pointed in between already stamped slits 17.
- Fig. 7c shows the core drill pipe 11 completely stamped between and above the first slit cut.
- FIG. 7d shows that the worn out core drill crown is loose and can be lifted off, simultaneously the slits 17 are ready for soldering of segments (bits) 18.
- Fig. 7e shows the core drill pipe 11 with segments 18 soldered on and ready for use. Soldering of segments 18 is shown in more detail in fig. 8. As is shown here, the core drill pipe 11 is rotated around and the stacked segments 18 inside the cartridge 30 drop down in each slit 17, and being kept in place by the outside magnet part 30 and then soldered to the core drill pipe 11. The segment application unit is fixed to the stamping tonge 6, such that the pre-set slit distance for stamping is used.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU34008/95A AU3400895A (en) | 1994-09-01 | 1995-08-30 | Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such device |
DE69525173T DE69525173D1 (en) | 1994-09-01 | 1995-08-30 | PUNCHING AND CUTTING DEVICE WITH WELDING DEVICE FOR DRILL PIPES AND METHOD FOR THE USE THEREOF |
EP95930743A EP0789637B1 (en) | 1994-09-01 | 1995-08-30 | Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO943244 | 1994-09-01 | ||
NO943244A NO180550C (en) | 1994-09-01 | 1994-09-01 | Cutting and cutting device for core drill pipe, as well as method for using the device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996006698A1 true WO1996006698A1 (en) | 1996-03-07 |
Family
ID=19897362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1995/000145 WO1996006698A1 (en) | 1994-09-01 | 1995-08-30 | Stamping- and cutting device including a soldering jig for core drill pipes and procedure by use of such device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0789637B1 (en) |
AU (1) | AU3400895A (en) |
DE (1) | DE69525173D1 (en) |
NO (1) | NO180550C (en) |
WO (1) | WO1996006698A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011056809A2 (en) * | 2009-11-03 | 2011-05-12 | Longyear Tm, Inc. | Core lifter |
US11655593B2 (en) | 2018-07-12 | 2023-05-23 | Kemira Oyj | Method for manufacturing multi-layered fibrous web and multi-layered fibrous web |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE222213C (en) * | ||||
GB1229980A (en) * | 1967-08-17 | 1971-04-28 | ||
EP0332795A1 (en) * | 1988-03-15 | 1989-09-20 | Kardiam Maschinenbau Ag | Method and apparatus for drill-crown brazing |
SE469569B (en) * | 1992-07-03 | 1993-07-26 | Hans Persson | Shearing device for obtaining solder seats on diamond drilling equipment |
-
1994
- 1994-09-01 NO NO943244A patent/NO180550C/en unknown
-
1995
- 1995-08-30 DE DE69525173T patent/DE69525173D1/en not_active Expired - Lifetime
- 1995-08-30 WO PCT/NO1995/000145 patent/WO1996006698A1/en active IP Right Grant
- 1995-08-30 AU AU34008/95A patent/AU3400895A/en not_active Abandoned
- 1995-08-30 EP EP95930743A patent/EP0789637B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE222213C (en) * | ||||
GB1229980A (en) * | 1967-08-17 | 1971-04-28 | ||
EP0332795A1 (en) * | 1988-03-15 | 1989-09-20 | Kardiam Maschinenbau Ag | Method and apparatus for drill-crown brazing |
SE469569B (en) * | 1992-07-03 | 1993-07-26 | Hans Persson | Shearing device for obtaining solder seats on diamond drilling equipment |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011056809A2 (en) * | 2009-11-03 | 2011-05-12 | Longyear Tm, Inc. | Core lifter |
WO2011056809A3 (en) * | 2009-11-03 | 2011-07-28 | Longyear Tm, Inc. | Core lifter |
CN102686823A (en) * | 2009-11-03 | 2012-09-19 | 长年Tm公司 | Core Lifter |
US8770320B2 (en) | 2009-11-03 | 2014-07-08 | Longyear Tm, Inc. | Core lifter |
US10612308B2 (en) | 2009-11-03 | 2020-04-07 | Bly Ip Inc. | Core lifter |
US11655593B2 (en) | 2018-07-12 | 2023-05-23 | Kemira Oyj | Method for manufacturing multi-layered fibrous web and multi-layered fibrous web |
Also Published As
Publication number | Publication date |
---|---|
AU3400895A (en) | 1996-03-22 |
NO943244L (en) | 1996-03-04 |
NO180550C (en) | 1997-05-07 |
NO943244D0 (en) | 1994-09-01 |
DE69525173D1 (en) | 2002-03-14 |
EP0789637A1 (en) | 1997-08-20 |
NO180550B (en) | 1997-01-27 |
EP0789637B1 (en) | 2002-01-23 |
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