NO811398L - SAW SHEET, ISAES WITH DIAMOND COATED CUTS SEGMENTS - Google Patents

SAW SHEET, ISAES WITH DIAMOND COATED CUTS SEGMENTS

Info

Publication number
NO811398L
NO811398L NO811398A NO811398A NO811398L NO 811398 L NO811398 L NO 811398L NO 811398 A NO811398 A NO 811398A NO 811398 A NO811398 A NO 811398A NO 811398 L NO811398 L NO 811398L
Authority
NO
Norway
Prior art keywords
cutting
blade
saw blade
segments
segment
Prior art date
Application number
NO811398A
Other languages
Norwegian (no)
Inventor
Willi Buettner
Rudolf Buettner
Original Assignee
Buediam Diamantwerkzeuge W U R
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
Priority claimed from DE19803015930 external-priority patent/DE3015930A1/en
Application filed by Buediam Diamantwerkzeuge W U R filed Critical Buediam Diamantwerkzeuge W U R
Publication of NO811398L publication Critical patent/NO811398L/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02Circular saw blades
    • B23D61/025Details of saw blade body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12Cut-off wheels
    • B24D5/123Cut-off wheels having different cutting segments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121Circular saw blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

Oppfinnelsen angår et sagblad, især diamantbelagt sagblad for skjæring av natursteiner, bestående av et med skjærsegmenter pålagt stamblad. The invention relates to a saw blade, in particular a diamond-coated saw blade for cutting natural stones, consisting of a base blade superimposed with cutting segments.

Driftskostnadene ved et sagblad avhenger på den ene side av anskaffelseskostnadene og på den annen side av snitteffekten og sagbladenes standtid. Det er kjent å forlenge sagbladenes standtid ved.å gjøre skjærsegmentenes høyde, det vil si de deler av disse skjærsegmenter som slites, så høye som mulig. Beleggets høyde kan dog ikke gjøres ujpegrenset høyt The operating costs of a saw blade depend on the one hand on the acquisition costs and on the other hand on the cutting power and the service life of the saw blades. It is known to extend the service life of saw blades by making the height of the cutting segments, i.e. the parts of these cutting segments that wear, as high as possible. However, the height of the coating cannot be made infinitely high

da ellers en utilstrekkelig frivinkel sideveis og en uregel-messig slitasje av skjærelementene ville følge, slik at disse ville få en for snittet ufordelaktig konisk utformning. otherwise an insufficient free angle laterally and an irregular wear of the cutting elements would follow, so that these would have a conical design disadvantageous to the cut.

Sagblad med diamantskjærsegmenter med diametre på 200-4000 mm har idag en spontagende effekt på ca. 400 cm 2 pr.. minutt. Bladenes standtid er ved vanlig påleggshøyde, ca 600 m<2>Det er oppfinnelsens oppgave å øke vesentlig skjærsegmentenes spontagende effekt og standtid ved sagblad, især ved skjærsegmenter som er belagt med diamanter. Saw blades with diamond cutting segments with diameters of 200-4000 mm today have a cutting effect of approx. 400 cm 2 per.. minute. The service life of the blades is at normal installation height, approx. 600 m<2>It is the task of the invention to significantly increase the cutting effect and service life of saw blades, especially with cutting segments that are coated with diamonds.

Denne oppgave løses ifølge oppfinnelsen ved at skjærsegmentene er anordnet elastisk på stambladet. Skjærsegmentene festes fordelaktig på U-formede bøyler, som med sine side-ben er festet til stambladet, slik at det midtre forbindelses-steg har en avstand til stambladet. Det imidlertid også tenk-bart at det utføres utsparinger i stambladet under skjærsegmentenes festesteder slik at det likeledes oppstår en elast- According to the invention, this task is solved by the shear segments being arranged elastically on the stem blade. The cutting segments are advantageously attached to U-shaped hoops, which are attached to the base blade with their side legs, so that the middle connecting step has a distance to the base blade. However, it is also conceivable that recesses are made in the stem blade under the attachment points of the shear segments so that an elastic

isk opplagring av skjærsegmentene.ice storage of the shear segments.

Skjærsegmentenes elastiske opplagring har medførtThe shear segments' elastic storage has resulted in

en stigning av den spontagende effekt og også av standtidenan increase of the spontaneous effect and also of the standing time

med verdier opptil 50 %, hvor beleggets høyde alltid har vært valgt ens. Denne effektstigning og forhøyning av standtiden kan føres tilbake til at de sprø diamanter i skjærbelegget skånes betydelig mer ved den elastiske opplagring av skjærsegmentene slik at disse ved den slagajctige belastning av skjærsegmentene, slås mindre istykker. Sagbladets ytelse er proposjonalt med de diamantspisser som står i inngrep. Ved den elastiske opplagring av skjærsegmentene slås de utragende og skærende diamantspisser mindre istykker og brytes mindre slik at flere diamantsegmenter til enhver tid står i 'inngrep og kan benyttes lengre. En følge derav er en betydelig større standtid og spontagende effekt. with values up to 50%, where the height of the covering has always been chosen the same. This increase in power and increase in service life can be traced back to the fact that the brittle diamonds in the cutting coating are significantly more protected by the elastic storage of the cutting segments so that they are less broken into pieces by the impact load of the cutting segments. The performance of the saw blade is proportional to the diamond tips that engage. Due to the elastic storage of the cutting segments, the protruding and cutting diamond points are broken into pieces less and break less so that several diamond segments are engaged at all times and can be used for longer. A consequence of this is a significantly longer service life and spontaneous effect.

Oppfinnelsen er spesielt fordelaktig ved diamantbesatte skjærsegmenter, da disse er spesielt ømfindtlige mot slagartige belastninger. Oppfinnelsen kan imidlertid også på samme måte benyttes ved andre hårde skjærsegmenter som er inn-lagt i en masse. The invention is particularly advantageous for diamond-studded cutting segments, as these are particularly sensitive to impact loads. However, the invention can also be used in the same way with other hard shear segments that are embedded in a mass.

I det følgende beskrives oppfinnelsen på grunnlag av tegningen hvor figur 1 viser et delsideriss av et vanlig sagblad, figur 2 viser et sagblad i henhold til oppfinnelsen hvor skjærsegmentet er festet til. en bøyle, figur 3 yiser en ytterligere utførelse av stambladet i henhold til oppfinnelsen med en utsparing i skjærsegmentets område og figur 4 viser et snitt langs linjen IV-IV på figur 3. In the following, the invention is described on the basis of the drawing, where Figure 1 shows a partial side view of an ordinary saw blade, Figure 2 shows a saw blade according to the invention to which the cutting segment is attached. a hoop, Figure 3 shows a further embodiment of the main blade according to the invention with a recess in the area of the cutting segment and Figure 4 shows a section along the line IV-IV in Figure 3.

På figur 1-3 er sagbladenes stamblad betegnet med 1. Dette stamblad kan ha en diameter opp til 3 m. På stambladet 1 er skjærsegmentet 2 loddet direkte fast ved kjente sagblad. Skjærsegmentene 2 består av en firkantet ytre del hvis høyde er omtrent 5 mm og en med denne forbundet del 4 med kjegleformet innad avtagende tykkelse og hvis høyde er omtrent 15 mm slik at hele skjærsegmentets høyde er omtrent 20 mm. Den kjegleformede dels kjeglevinkel er holdt slik at den firkantede dels 3 sideflater ved fortsatt nedbryting av skjærsegmentets firkantede dels høyde og bredde, forskyves slik nedover at disse beholder omtrent samme høyde og imidlertid.vandrer mot stambladet. Herved sikres at den nødvendige sideføring for stambladet alltid opprettholdes samtidig som også den nød-vendige frivinkel foreligger. Derved er det mulig å gjøre skjæsegmentets høyde.så stor at en forhøyelse av standtiden allerede oppnås ved dette uten å frykte en uensartet slitasje og et skjevt forløp av snittet. In figures 1-3, the saw blade's base blade is denoted by 1. This base blade can have a diameter of up to 3 m. On the base blade 1, the cutting segment 2 is soldered directly to known saw blades. The cutting segments 2 consist of a square outer part whose height is approximately 5 mm and a connected part 4 with cone-shaped inwards decreasing thickness and whose height is approximately 15 mm so that the height of the entire cutting segment is approximately 20 mm. The cone angle of the cone-shaped part is kept so that the 3 side surfaces of the square part, by continuing to break down the height and width of the square part of the cutting segment, are shifted downwards so that they retain approximately the same height and, however, move towards the main blade. This ensures that the required lateral guidance for the main blade is always maintained while also providing the necessary free angle. Thereby, it is possible to make the height of the fork segment so great that an increase in the service life is already achieved by this without fear of uneven wear and a crooked course of the cut.

Ved dette tiltak kan riktignok standtiden forhøyes, mens en forhøyelse av snitteffekten ved hjelp av skjærsegmentets geometriske utformning kun er mulig i meget liten utstrek-ning, om overhodet. Ifølge oppfinnelsen forhøyes imidlertid også skjæreffekten og også et skjærsegments standtid definert ved høyden, opptil 50 .% når skjærsegmentet 2 er festet elastisk, d.v.s. festet fjærende ettergivende på stambladet 1. Herved oppnås at skjærsegmentets diamanter som rager ut av dettes overflate og står i inngrep ikke slås istykker av den slagartige belastning eller rives ut av skjærsegmentet. Ved den kjente anordning av skjærsegmentene ble kun omtrent 30 % av diamantene utnyttet for skjæring mens resten av diamantene ble slått ut av skjærsegmentet. Ved den elastiske anordning av skjærsegmentet ble det funnet at diamantene kunne utnyttes opptil 70 % for det spontagende arbeide, mens kun ca. 30 % ble slått istykker eller slått ut av skjærsegmentet. With this measure, it is true that the service life can be increased, while an increase in the cutting effect by means of the cutting segment's geometric design is only possible to a very small extent, if at all. According to the invention, however, the shearing effect and also the service life of a shear segment defined by the height are increased, up to 50.% when the shear segment 2 is attached elastically, i.e. fixed resiliently on the base blade 1. This ensures that the cutting segment's diamonds that protrude from its surface and are engaged are not broken into pieces by the impact-like load or torn out of the cutting segment. With the known arrangement of the cutting segments, only about 30% of the diamonds were used for cutting, while the rest of the diamonds were knocked out by the cutting segment. With the elastic arrangement of the cutting segment, it was found that the diamonds could be used up to 70% for the spur-of-the-moment work, while only approx. 30% were smashed to pieces or knocked out of the shear segment.

Denne elastiske opplagring av skjærsegmentene 2 på stambladet 1 kan enten utføres, slik det er vist på figur 2, ved at skjærsegmentene 2 loddes på en U-formet Jpøyle 5, hvis ben 6, 7 igjen er fast forbundet med stambladet 1. Det steg 8 som forbinder benene 6, 7 har en tilstrekkelig avstand fra stambladets overkant 9 til at skjærsegmentet 2 oppnår en tilstrekkelig stor fjærvei. Bøylens elastisitet kan på den ene side bestemmes ved valget av bøylens 8 størrelse, og på den annen side likeledes av benenes 6, 7 høyde. This elastic storage of the shear segments 2 on the stem blade 1 can either be carried out, as shown in Figure 2, by the shear segments 2 being soldered to a U-shaped Jpøyle 5, whose legs 6, 7 are again firmly connected to the stem blade 1. That step 8 which connect the legs 6, 7 has a sufficient distance from the upper edge 9 of the main blade so that the cutting segment 2 achieves a sufficiently large spring path. The elasticity of the brace can be determined on the one hand by choosing the size of the brace 8, and on the other hand likewise by the height of the legs 6, 7.

Ved utførelsen ifølge figur 3 er skjærsegmentet 2 umiddelbart loddet til stambladet 1 på kjent måte. Imidlertid har dette stamblad 1 en utsparing 10 under hvert skjærsegment 2, som minst strekker seg over skjærsegmentets 2 bredde. Her bestemmes"skjærsegmentets 2 fjærende opplagring av utsparin-gens 10 bredde og av høyden av det resterende steg 11 av stambladet 1. In the embodiment according to Figure 3, the cutting segment 2 is immediately soldered to the stem blade 1 in a known manner. However, this main blade 1 has a recess 10 under each cutting segment 2, which at least extends over the width of the cutting segment 2. Here, the spring bearing of the cutting segment 2 is determined by the width of the recess 10 and by the height of the remaining step 11 of the stem blade 1.

Figur 4 viser et snitt på figur 3 med anordningen av skjærsegmentet 2 på stambladet 1. Ved egnet valg av skjærsegmentets elastisitet på stambladet 1 kan det, slik forsøkene har vist, oppnås en forhøyet standtid med 50 % og av den spontagende effekt likeledes med 50 %, med samme høyde for skjærsegmentet 2. Herved kan sagbladenes økonomi, især sagblad med diamantspisser, betydelig forhøyes. Oppfinnelsen er imidlertid på samme måte også egnet for sagblad hvor det ikke benyttes diamanter, men andre sprø, holdbare legemer for skjær-ingen . Figure 4 shows a section of Figure 3 with the arrangement of the shear segment 2 on the stem blade 1. With a suitable choice of the elasticity of the shear segment on the stem blade 1, as the experiments have shown, an increased service life of 50% can be achieved and of the snap-taking effect likewise by 50% , with the same height for the cutting segment 2. In this way, the economy of the saw blades, especially saw blades with diamond tips, can be significantly increased. However, the invention is equally suitable for saw blades where diamonds are not used, but other brittle, durable bodies for cutting.

Claims (6)

1. Sagblad, især diamantbesatt sagblad.for skjæring av natursteiner, bestående av et med skjærsegmenter besatt stamblad, karakterisert ved at skjærsegmentene (2) er anordnet elastisk på stambladet (1).1. Saw blade, in particular diamond-studded saw blade for cutting natural stones, consisting of a base blade equipped with cutting segments, characterized in that the cutting segments (2) are arranged elastically on the base blade (1). 2. Sagblad ifølge krav 1, karakterisert ved at skjærsegmentene (2) er festet til en U-formet bøyle (5) hvis steg (8) som forbinder benene (6, 7)§ pm er anordnet til stambladet, er ført i en avstand fra stambladet (1).2. Saw blade according to claim 1, characterized in that the cutting segments (2) are attached to a U-shaped hoop (5) whose step (8) which connects the legs (6, 7) § pm is arranged to the base blade, is guided at a distance from the stem leaf (1). 3. Sagblad ifølge krav 1, karakterisert ved at stambladet (1) har en utsparing (10) under hvert skjærsegment (2).3. Saw blade according to claim 1, characterized in that the main blade (1) has a recess (10) under each cutting segment (2). 4. Sagblad ifølge krav 1-3, karakterisert ved at skjærsegmentenes (2) form i tverrsnitt består av en øvre firkantet del (3) og en med denne forbundet kjegleformet del (4) som mot .sagbladets stamblad (1) har avtagende tykkelse.4. Saw blade according to claims 1-3, characterized in that the shape of the cutting segments (2) in cross-section consists of an upper square part (3) and a cone-shaped part (4) connected to this which has a decreasing thickness towards the saw blade's main blade (1). 5. Sagblad ifølge krav 4, karakterisert ved at den firkantede dels høyde er ca. 5 mm.5. Saw blade according to claim 4, characterized in that the height of the square part is approx. 5 mm. 6. Sagblad ifølge krav 4-5, karakter! sert ved at den kjegleformede dels kjeglevinkel er omtrent 9,2°.6. Saw blade according to requirements 4-5, grade! sert in that the cone angle of the cone-shaped part is approximately 9.2°.
NO811398A 1980-04-25 1981-04-24 SAW SHEET, ISAES WITH DIAMOND COATED CUTS SEGMENTS NO811398L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803015930 DE3015930A1 (en) 1980-04-25 1980-04-25 Rock cutting saw blade - has segments each with rectangular top portion and one portion tapering towards body
DE3114322 1981-04-09

Publications (1)

Publication Number Publication Date
NO811398L true NO811398L (en) 1981-10-26

Family

ID=25785126

Family Applications (1)

Application Number Title Priority Date Filing Date
NO811398A NO811398L (en) 1980-04-25 1981-04-24 SAW SHEET, ISAES WITH DIAMOND COATED CUTS SEGMENTS

Country Status (3)

Country Link
EP (1) EP0039024A1 (en)
FI (1) FI811273A7 (en)
NO (1) NO811398L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR840005372A (en) * 1982-07-29 1984-11-12 원본 미기재 Cutting wheel and cutter
BE1000242A4 (en) * 1987-01-08 1988-09-20 Diamant Boart Sa Blade armor for cutting materials stone.
US5184597A (en) * 1990-04-27 1993-02-09 Edward Chiuminatta Apparatus and method for cutting unhardened concrete

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627583A (en) *
US3156077A (en) * 1963-02-06 1964-11-10 Continental Machines Diamond edge saw blade
US3795077A (en) * 1972-12-04 1974-03-05 Norton Co Segmental cut-off grinding wheel
DE7724960U1 (en) * 1977-08-11 1977-11-24 Ernst Winter & Sohn (Gmbh & Co), 2000 Hamburg circular saw

Also Published As

Publication number Publication date
FI811273L (en) 1981-10-26
FI811273A7 (en) 1981-10-26
EP0039024A1 (en) 1981-11-04

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