WO2004063529A1 - Schneidring für diskenrollen von teil- und/oder vollschnittmaschinen - Google Patents
Schneidring für diskenrollen von teil- und/oder vollschnittmaschinen Download PDFInfo
- Publication number
- WO2004063529A1 WO2004063529A1 PCT/EP2003/012727 EP0312727W WO2004063529A1 WO 2004063529 A1 WO2004063529 A1 WO 2004063529A1 EP 0312727 W EP0312727 W EP 0312727W WO 2004063529 A1 WO2004063529 A1 WO 2004063529A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- hard metal
- metal part
- base ring
- part segments
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/104—Cutting tool fixtures
-
- 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
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
Definitions
- the invention relates to a cutting ring for disc rolls of part and / or full cutting machines, with a base ring made of steel or the like.
- Material and a closed hard metal ring which is arranged on the outer circumferential surface of the base ring and is formed from a plurality on the outer circumferential surface of the base ring in the circumferential direction of the same arranged side by side hard metal part segments and a method for producing such a cutting ring.
- the invention is therefore based on the object of providing a cutting ring for disc rolls of partial and / or full-cutting machines which has longer service lives than the cutting rings known from the prior art and which can also be produced with a comparatively low cost.
- a cutting ring which, in addition to the features described at the outset, is further developed to the extent that its base ring is divided into two axial sections, when an annular recess for receiving the hard metal part segments is formed between the radially outer sections of abutting contact surfaces of these axial sections and when the two axial sections of the base ring with hard metal part segments inserted between them in the ring recess can be pressed into a firm bond by pressurization.
- the ring recess for receiving the hard metal part segments is advantageously formed by two partial ring recesses which are formed in the radially outer sections of the abutting bearing surfaces of the two axial sections of the base ring. This ensures that the hard metal ring or the hard metal part segments forming it protrude into both axial sections of the base ring.
- the base ring should advantageously be divided axially in the middle into the two axial sections, which inevitably results in the ring recess being divided in half between the two axial sections.
- the hard metal ring or its hard metal partial segments can be connected to the same quality with both axial sections of the base ring.
- each hard metal part segment has a projection projecting in the circumferential direction of the cutting ring on its two end faces.
- the hard metal ring made of hard metal part segments can be identical Form design can be put together.
- a load peak acting on a hard metal part segment of the hard metal ring is distributed evenly over the hard metal part segments adjacent to the loaded hard metal part segment and from there on, so that load peaks on the hard metal ring are evenly taken up and such load peaks are passed on to the base ring. As a result, the service life of the cutting ring can be increased considerably.
- the side surfaces of the hard metal part segments are enlarged in terms of their surface area by means of projections or grooves, preferably triangular in cross section.
- a stress compensation material layer for example a nickel, chrome, chromium-nickel layer or the like.
- a layer of tension compensation material e.g. to arrange a nickel, chrome, chrome-nickel layer or the like.
- the stress compensation material layers can expediently be formed by means of a film.
- each axial section of the base ring has an outer edge section that can be separated from it, preferably rotated, with which it protrudes over the outer circumference of the hard metal ring and by means of this in cooperation with a correspondingly configured outer edge section of the other axial section Base ring an annular space between the outer circumference of the hard metal ring and the two outer edge sections can be closed.
- Cutting rings are on a radially outer portion of a Contact surface of an axial section of the hard metal part segments forming the hard metal ring in two axial sections of the base ring, after which the other axial section of the base ring is joined to the one axial section thereof and the hard metal part segments forming the hard metal ring and the two axial sections are pressed together with the hard metal part segments arranged between them to form a firm bond ,
- the hard metal part segments forming the hard metal ring are advantageously held in an annular recess when the two axial sections of the base ring are joined together, each of which is formed in half in the contact surfaces of the two axial sections.
- Insensitivity of the hard metal ring or the cutting ring to radial forces occurring in the form of load peaks is achieved in that the hard metal part segments engage in a form-fitting manner on their adjacent end faces.
- the side surfaces of the hard metal part segments can preferably be enlarged with respect to their surface by means of projections or grooves which are triangular in cross section.
- a stress compensation material layer is provided between the axial sections of the base ring and the hard metal part segments and between the adjacent hard metal part segments, by means of which the remaining stress differences are to be compensated.
- the ring recess of the base ring receiving the hard metal part segments of the hard metal ring is closed radially outside of the hard metal ring, preferably by means of outer edge sections of the axial sections of the base ring projecting radially beyond the outer circumference of the hard metal ring and then evacuated by means of a suitable device.
- This evacuation can further reduce the occurrence of faults on the connecting surfaces between the hard metal ring on the one hand and the base ring on the other hand and between the individual hard metal part segments of the hard metal ring during the production of the cutting ring.
- the composite of the two axial sections of the base ring and the hard metal part segments is expediently heated to a comparatively high temperature, which is, however, somewhat below the melting point of the base ring material.
- the composite of the two axial sections of the base ring and the hard metal part segments is then advantageously subjected to a high pressure using protective gas, preferably using argon, at which the yield point of the base ring material is exceeded, preferably under a pressure of approx 1,000 bar.
- both the temperature to which the composite is heated and the pressure with which the composite is then acted upon by the Type of materials used for the base ring or hard metal ring and, if applicable. can also depend on the requirement profile for the quality of the cutting ring.
- the yield point of the base ring material is exceeded, whereby an intimate bond between the base ring material and the side surfaces of the hard metal part segments, which are provided with projections and grooves for this purpose, is achieved because the base ring material into the grooves on the side surfaces penetrates the hard metal part segments.
- the temperature is slowly lowered while the high pressure is maintained. This largely avoids the occurrence of stress peaks and stress differences at the transition between the material forming the base ring and the material forming the hard metal ring. Any remaining unavoidable voltage differences are - as already mentioned - compensated for by the nickel foil.
- the outer edge sections of the axial sections of the base ring can expediently be turned off after cooling.
- Figure 1 shows an embodiment of an inventive
- FIG. 1 shows a hard metal part segment of the cutting ring according to the invention for disc rolls shown in Figure 1 in a perspective view
- FIG. 3 shows an axial section of a base ring of the cutting ring according to the invention for disk rolls according to the invention shown in FIG. 1 with hard metal part segments inserted therein in a radial view, only half of the axial section being shown.
- a cutting ring 1 shown in FIG. 1 in axial section for disc rolls of partial and / or full cutting machines has a base ring 2 and a closed hard metal ring 3 which is arranged on the outer surface 4 of the base ring 2 or forms part of the outer surface of the cutting ring 1.
- the base ring 2 of the cutting ring 1 according to the invention is divided into two axial sections 5, 6, the separating surface between the two axial sections 5, 6 of the base ring 2 being arranged axially centrally in the base ring 2.
- the two axial sections 5, 6 have mutually facing contact surfaces 7, 8, on which the two axial sections 5, 6 abut one another.
- a partial ring recess 9 and 10 is formed in the radially outer sections of the two contact surfaces 7, 8, the two partial ring recesses 9, 10 each along the entire outer circumference of the two axial sections 5, 6 and the two contact surfaces 7, 8.
- the two axial sections 5, 6 of the base ring 2 each have a circumferential outer edge section 12 or 13, which can be brought into contact with one another in such a way that the ring recess 11 for receiving the closed hard metal ring 3 can be closed to the outside.
- the two axial sections 5, 6 and the base ring 2 are made of steel or a comparable material.
- Half of the ring recess 11 is formed in each case by the two partial ring recesses 9, 10 in the radially outer sections of the contact surfaces 7, 8 of the two axial sections 5, 6.
- the outer edge sections 12, 13 of the two axial sections 5, 6 can subsequently be separated from the axial sections 5, 6, for example by a turning process.
- the hard metal ring 2 arranged in the ring recess 11 formed between the two axial sections 5, 6 of the base ring 2 is composed of a plurality of hard metal part segments shown in perspective in FIG.
- the hard metal ring 3 is formed in a closed configuration by means of the hard metal partial segments 14 with their end faces 15, 16 respectively.
- On each end face 15, 16, each hard metal part segment 14 of the hard metal ring 3 has a projection 17 or 18 projecting in the circumferential direction of the cutting ring 1, the projection 17 on one end face 15 of the hard metal part segment 14 on a radially inner portion of the end face 15 and the projection 18 are arranged on the end face 16 of the hard metal part segment 14 on a radial outer section of the end face 16.
- the individual hard metal part segments 14 grip due to the projections 17, 18 provided on their end faces 15, 16 quasi in a form-fitting manner, so that a load on a hard metal part segment 14 is further distributed by it to the two adjacent hard metal part segments 14 etc. This results in a uniform loading of the hard metal part ring 3 even when a single hard metal part segment 14 has to absorb a load peak.
- each hard metal part segment 14 is formed with projections 21 and grooves 22 which are triangular in cross section in order to enlarge the surface of its side surfaces 19, 20.
- the triangular cross-sectional shape is only one of many conceivable cross-sectional shapes, since it is essential that the specific surface area of the side surfaces 19, 20 of the hard metal part segment 14 is enlarged.
- the hard metal part segments 14 are inserted into the partial ring recess 9 of the one axial section 5 of the base ring 2, with between the
- FIG. 3 One half of an axial section 5 of the base ring 2 provided with hard metal part segments 14 is shown in FIG. 3. It should be pointed out that all hard metal part segments 14 are provided on their side surfaces 19, 20 with the projections 21 and grooves 22, this being shown in FIG. 3 only with the aid of a hard metal part segment 14. Also see between the abutting end faces 15, 16 of the
- Part of hard metal segments 14 is a stress compensation material layer configured as a nickel foil.
- annular space 24 present between the outer circumference of the hard metal part segments 14 and the outer edge sections 12, 13 of the axial sections 5, 6 is closed by connecting the two outer edge sections 12, 13 at their peripheral edges.
- This compound can be prepared in any suitable manner. Closing the annular space 24 is possible because the outer or peripheral edges of the two outer edge sections 12, 13 of the two axial sections 5, 6 extend radially outside the free outer circumferential surface of the hard metal ring 3.
- This annular space 24 is now evacuated by means of a suitable device.
- 11 is the structure or the composite of the two axial sections 5, 6, the hard metal part segments 14 and the Ni heated film to a comparatively high temperature, which is below the melting point of the base ring material. This temperature can vary depending on the base ring material used.
- the composite is protected using a protective gas, e.g. using argon, under a high pressure, which can be, for example, 1,000 bar. It is essential that the yield point of the base ring material is exceeded at this pressure.
- a protective gas e.g. using argon
- the base ring material flows into the grooves 22 of the side surfaces 19, 20 of the hard metal part segments 14, whereby an intimate connection between the base ring 2 on the one hand and the hard metal ring 3 on the other hand is produced.
- This predeterminable period of time depends on the materials used in each case for the production of the cutting ring 1 and, if appropriate, also on certain quality requirements for the cutting ring to be produced.
- the composite of base ring 2 and hard metal ring 3 is cooled uniformly, the pressure remaining high.
- the temperature is slowly lowered in order to avoid voltage peaks and differences. Remaining voltage differences, which are unavoidable, are compensated for by the nickel foils arranged between the hard metal part segments 14 or between the hard metal part segments 14 and the axial sections 5, 6.
- the outer edge sections 12, 13 of the two axial sections 5, 6 can be turned off in a simple manner after the cutting ring 1 has been produced.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Adornments (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Devices (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Crushing And Pulverization Processes (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03779926A EP1581722B1 (de) | 2003-01-10 | 2003-11-14 | Schneidring für diskenrollen von teil- und/oder vollschnittmaschinen |
| US10/541,546 US20060144200A1 (en) | 2003-01-10 | 2003-11-14 | Cutting ring for disk rolls pertaining to partial and/or full cutting machines |
| DE50306072T DE50306072D1 (de) | 2003-01-10 | 2003-11-14 | Schneidring für diskenrollen von teil- und/oder vollschnittmaschinen |
| AU2003288061A AU2003288061A1 (en) | 2003-01-10 | 2003-11-14 | Cutting ring for disk rolls pertaining to partial and/or full cutting machines |
| CA 2512737 CA2512737A1 (en) | 2003-01-10 | 2003-11-14 | Cutting ring for disk rolls of partial and/or full cutting machines |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003100624 DE10300624A1 (de) | 2003-01-10 | 2003-01-10 | Schneidring für Diskenrollen von Teil- und/oder Vollschnittmaschinen |
| DE10300624.9 | 2003-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004063529A1 true WO2004063529A1 (de) | 2004-07-29 |
Family
ID=32519801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/012727 Ceased WO2004063529A1 (de) | 2003-01-10 | 2003-11-14 | Schneidring für diskenrollen von teil- und/oder vollschnittmaschinen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20060144200A1 (de) |
| EP (1) | EP1581722B1 (de) |
| AT (1) | ATE348941T1 (de) |
| AU (1) | AU2003288061A1 (de) |
| CA (1) | CA2512737A1 (de) |
| DE (2) | DE10300624A1 (de) |
| WO (1) | WO2004063529A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9556733B2 (en) | 2013-03-08 | 2017-01-31 | Us Synthetic Corporation | Tunnel boring machine disc cutters and related methods of manufacture |
| US9366088B2 (en) | 2013-03-08 | 2016-06-14 | Us Synthetic Corporation | Cutter assemblies, disc cutters, and related methods of manufacture |
| AT514133B1 (de) | 2013-04-12 | 2017-06-15 | Feistritzer Bernhard | Ringförmiges Werkzeug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE817887C (de) * | 1949-03-26 | 1951-10-22 | Sandvikens Jernverks Ab | Bohrkopf fuer Gesteinsbohrer |
| DE2449405A1 (de) * | 1974-10-17 | 1976-04-22 | Boart Hardmetals Ltd | Schneidrolle fuer eine gesteinsbohrmaschine |
| US4662461A (en) * | 1980-09-15 | 1987-05-05 | Garrett William R | Fixed-contact stabilizer |
| EP0602753A1 (de) * | 1992-12-17 | 1994-06-22 | CBK TRADING S.r.l. | Scheibenmeissel für Gestein und ähnliche Materialien |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US892180A (en) * | 1907-05-23 | 1908-06-30 | John Patten | Drill-bit. |
| US2306683A (en) * | 1940-07-01 | 1942-12-29 | John A Zublin | Cutting edge |
| FR2159742A5 (de) * | 1971-11-10 | 1973-06-22 | Blanzy Ouest Union Indle | |
| ZA723776B (en) * | 1972-06-02 | 1974-01-30 | Hard Metals Ltd | Disc cutting unit for use on rock boring machines |
| US3766998A (en) * | 1972-07-17 | 1973-10-23 | Gen Electric | Disc cutter for boring-type mining machine |
| ZA744897B (en) * | 1974-07-31 | 1976-05-26 | Board Hardmetal Proprietary Lt | Improvements in or relating to disc cutting units for use on rock boring machines |
| SE467700B (sv) * | 1986-01-28 | 1992-08-31 | Boart Int Ltd | Skivformat skaer foer bergbearbetningsmaskiner |
| US5234064A (en) * | 1992-03-09 | 1993-08-10 | The Robbins Company | Roller cutter assembly having adjustable ring cutter spacing |
-
2003
- 2003-01-10 DE DE2003100624 patent/DE10300624A1/de not_active Withdrawn
- 2003-11-14 US US10/541,546 patent/US20060144200A1/en not_active Abandoned
- 2003-11-14 AT AT03779926T patent/ATE348941T1/de not_active IP Right Cessation
- 2003-11-14 DE DE50306072T patent/DE50306072D1/de not_active Expired - Lifetime
- 2003-11-14 EP EP03779926A patent/EP1581722B1/de not_active Expired - Lifetime
- 2003-11-14 AU AU2003288061A patent/AU2003288061A1/en not_active Abandoned
- 2003-11-14 WO PCT/EP2003/012727 patent/WO2004063529A1/de not_active Ceased
- 2003-11-14 CA CA 2512737 patent/CA2512737A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE817887C (de) * | 1949-03-26 | 1951-10-22 | Sandvikens Jernverks Ab | Bohrkopf fuer Gesteinsbohrer |
| DE2449405A1 (de) * | 1974-10-17 | 1976-04-22 | Boart Hardmetals Ltd | Schneidrolle fuer eine gesteinsbohrmaschine |
| US4662461A (en) * | 1980-09-15 | 1987-05-05 | Garrett William R | Fixed-contact stabilizer |
| EP0602753A1 (de) * | 1992-12-17 | 1994-06-22 | CBK TRADING S.r.l. | Scheibenmeissel für Gestein und ähnliche Materialien |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003288061A1 (en) | 2004-08-10 |
| CA2512737A1 (en) | 2004-07-29 |
| ATE348941T1 (de) | 2007-01-15 |
| EP1581722B1 (de) | 2006-12-20 |
| DE10300624A1 (de) | 2004-07-22 |
| EP1581722A1 (de) | 2005-10-05 |
| DE50306072D1 (de) | 2007-02-01 |
| US20060144200A1 (en) | 2006-07-06 |
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