EP1137863A1 - Befestigung für einen rundschaftmeissel mit verschleissschutzscheibe - Google Patents
Befestigung für einen rundschaftmeissel mit verschleissschutzscheibeInfo
- Publication number
- EP1137863A1 EP1137863A1 EP99973316A EP99973316A EP1137863A1 EP 1137863 A1 EP1137863 A1 EP 1137863A1 EP 99973316 A EP99973316 A EP 99973316A EP 99973316 A EP99973316 A EP 99973316A EP 1137863 A1 EP1137863 A1 EP 1137863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chisel
- wear protection
- circumferential
- round shank
- holder
- 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.)
- Withdrawn
Links
- 238000003801 milling Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 4
- 230000000284 resting effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
- B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
- B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/188—Mining picks; Holders therefor characterised by adaptations to use an extraction tool
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
Definitions
- This arrangement is intended to prevent dirt from penetrating into the area which is formed between the bit head and the bit holder 5 and then reaches the receiving bore.
- the ring element is made of hard metal.
- the round chisel rotates in the tool insert Location hole. This causes a strong abrasion in the receiving groove of the chisel head. Since the ring element is made of hard metal, there is very strong abrasion. After a short period of use, the receiving groove is ground out and the chisel head then sits on the chisel holder. However, this has a negative effect on the rotational property of the round shank chisel. In particular, it can happen that the picks are blocked.
- the chisel holder has a projection or a circumferential trough that extends around the receiving bore, that the wear protection disk is provided with a circumferential receiving groove or a circumferential extension, and that the projection or the trough of the chisel holder in the assembled state of the round shank chisel engages in the receiving groove or the shoulder of the wear protection disc.
- a type of labyrinth is created in the area between the contact surface of the chisel holder and the wear protection disc by means of the receiving groove and the attachment, which prevents the penetration of debris material into the receiving bore.
- the turning properties of the round shank chisel are not adversely affected, since the chisel head can be supported flatly on the flat wear protection disc.
- the projection is trapezoidal in cross section and two for
- the central longitudinal axis of the round shank chisel has side flanks which are at an angle and which are connected to the wear protection disk by means of a flat support section, and that the receiving groove of the wear protection disk is likewise trapezoidal in cross section and rests with a contact surface on the support section.
- the large-area support of the wear protection disc enables the transmission of high loads that occur during work.
- the receiving bore In order to align the wear protection disk with respect to the receiving bore, provision can be made for the receiving bore to be provided with an extension in its end region facing the chisel head, on the boundary surface of which the wear protection disk rests with a centering section.
- the centering section can be part of the receiving groove, so that the effective contact surface for supporting and dissipating the forces introduced is further increased.
- the chisel shank is inserted into a passage opening of the wear protection disk and that the passage opening is provided with an extension at its area facing the chisel head.
- the free end of the chisel shaft can also be provided with a taper, in particular a phase.
- a simple manufacture of the wear protection disc can be achieved, for example, by producing it as a stamped and bent part from a disc-shaped blank, the outer edge of which is provided with a circumferential bend in the shape of a plate, and that the bend limits the receiving groove radially on the outside.
- Fig. 1 shows a chisel holder with a chisel in side view and in section and
- Fig. 2 shows a second embodiment variant of a chisel holder in
- the round shank chisel 10 has a chisel head 11.
- the chisel head 1 1 carries a chisel tip 12, which is usually made of hard metal.
- a bit shaft 14 is connected to the bit head 11 via a collar 13.
- the chisel shank 14 is provided with a circumferential groove in which a clamping sleeve 17 is held.
- the clamping sleeve 17 has a longitudinal slot which is delimited by two longitudinal edges 18 running in the direction of the central longitudinal axis of the round shank chisel 10. At the end, the chisel shaft 14 ends with a shoulder 16.
- a wear protection disk 19 is fitted onto the adapter sleeve 17.
- the wear protection disk 19 has a through hole. The inside diameter of this through hole is dimensioned such that the clamping sleeve 17 is held in the receiving groove 15 in a prestressed manner. In this prestressed state, the outer diameter of the clamping sleeve 17 is dimensioned such that the round shank chisel 10 can be inserted into the receiving bore 21 with little effort.
- the insertion movement of the round shank chisel 10 into the receiving bore 21 is temporarily limited by the fact that the wear protection disk 19 strikes the chisel holder 20.
- the wear protection disk 19 has a circumferential receiving groove 19.6 on its area facing the bit holder 20. This is trapezoidal in cross-section and laterally delimited by two flanks, which by means of a
- the contact surface 19.2 are connected.
- the contact surface 19.2 is arranged vertically to the central longitudinal axis of the round shank 10.
- the side flank facing the receiving bore 21 serves as the centering section 19.3.
- This centering section 19.3 comes into engagement with an extension which adjoins the end of the receiving bore 21 of the bit holder 20 and here one
- Support flank 26 forms.
- the centering section 19.3 bears on this support flank 26.
- the wear protection disk 19 is provided with an angled portion 19.5 on its radially outer edge. The bend 19.5 is bent in the direction of the bit holder 20.
- a circumferential, bead-shaped projection 23 protrudes from the chisel holder 20 in the direction of the chisel head 11.
- the projection 23 is trapezoidal in cross section and is delimited by the inclined support flank 26 and a likewise inclined side flank 24.
- the side flank 24 is connected to the support flank 26 via a flat support section 25.
- the support section 25 extends at right angles to the central longitudinal axis of the round shank bit 10.
- the round shank chisel 10 can be inserted into the receiving bore 21 with a small amount of force until the wear protection disk 19 abuts the chisel holder 20.
- the wear protection disk 19 can then be displaced in the direction of the chisel head 11 by means of a hammer blow on the chisel tip 12, the chisel shaft 14 simultaneously penetrating further into the receiving bore 21.
- the wear protection disc 29 has passed the clamping sleeve 17, it snaps radially, as a result of which the two longitudinal edges 18 move apart.
- the clamping sleeve 17 is braced in the receiving bore 21.
- the collar 13 of the chisel head 11 lies flat on the wear protection disk 19.
- the projection 23 of the bit holder 20 engages in the
- the configuration variant of a chisel holder 20 shown in FIG. 2 essentially corresponds to that according to FIG. 1.
- the side flank 24 extends in the direction of the central longitudinal axis of the receiving bore 21.
- the angled portion 19.5 of the locking disk 19 is also bent such that it is parallel and at a short distance from the side flank 24. This design creates a kind of labyrinth that prevents dirt from entering.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19856916 | 1998-12-10 | ||
DE19856916A DE19856916C1 (de) | 1998-12-10 | 1998-12-10 | Befestigung für einen Rundschaftmeißel |
PCT/EP1999/008596 WO2000034625A1 (de) | 1998-12-10 | 1999-11-09 | Befestigung für einen rundschaftmeissel mit verschleissschutzscheibe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1137863A1 true EP1137863A1 (de) | 2001-10-04 |
EP1137863A4 EP1137863A4 (de) | 2002-03-06 |
Family
ID=7890575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99973316A Withdrawn EP1137863A4 (de) | 1998-12-10 | 1999-11-09 | Befestigung für einen rundschaftmeissel mit verschleissschutzscheibe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6644755B1 (de) |
EP (1) | EP1137863A4 (de) |
DE (1) | DE19856916C1 (de) |
WO (1) | WO2000034625A1 (de) |
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6962395B2 (en) * | 2004-02-06 | 2005-11-08 | Kennametal Inc. | Non-rotatable protective member, cutting tool using the protective member, and cutting tool assembly using the protective member |
US7380887B2 (en) * | 2006-04-13 | 2008-06-03 | Keystone Engineering & Manufacturing Corp. | Tool holder |
US20070257545A1 (en) * | 2006-05-08 | 2007-11-08 | Sandvik Intelectual Property Ab | Cutting tool and method of assembling the cutting tool |
US9051795B2 (en) | 2006-08-11 | 2015-06-09 | Schlumberger Technology Corporation | Downhole drill bit |
US8007051B2 (en) | 2006-08-11 | 2011-08-30 | Schlumberger Technology Corporation | Shank assembly |
US7445294B2 (en) | 2006-08-11 | 2008-11-04 | Hall David R | Attack tool |
US7637574B2 (en) | 2006-08-11 | 2009-12-29 | Hall David R | Pick assembly |
US7871133B2 (en) | 2006-08-11 | 2011-01-18 | Schlumberger Technology Corporation | Locking fixture |
US8500209B2 (en) | 2006-08-11 | 2013-08-06 | Schlumberger Technology Corporation | Manually rotatable tool |
US7384105B2 (en) | 2006-08-11 | 2008-06-10 | Hall David R | Attack tool |
US7338135B1 (en) | 2006-08-11 | 2008-03-04 | Hall David R | Holder for a degradation assembly |
US7669674B2 (en) | 2006-08-11 | 2010-03-02 | Hall David R | Degradation assembly |
US8485609B2 (en) * | 2006-08-11 | 2013-07-16 | Schlumberger Technology Corporation | Impact tool |
US8123302B2 (en) | 2006-08-11 | 2012-02-28 | Schlumberger Technology Corporation | Impact tool |
US8414085B2 (en) * | 2006-08-11 | 2013-04-09 | Schlumberger Technology Corporation | Shank assembly with a tensioned element |
US9145742B2 (en) | 2006-08-11 | 2015-09-29 | Schlumberger Technology Corporation | Pointed working ends on a drill bit |
US7997661B2 (en) | 2006-08-11 | 2011-08-16 | Schlumberger Technology Corporation | Tapered bore in a pick |
US7413256B2 (en) | 2006-08-11 | 2008-08-19 | Hall David R | Washer for a degradation assembly |
US7661765B2 (en) | 2006-08-11 | 2010-02-16 | Hall David R | Braze thickness control |
US7464993B2 (en) | 2006-08-11 | 2008-12-16 | Hall David R | Attack tool |
US8449040B2 (en) | 2006-08-11 | 2013-05-28 | David R. Hall | Shank for an attack tool |
US7419224B2 (en) | 2006-08-11 | 2008-09-02 | Hall David R | Sleeve in a degradation assembly |
US8201892B2 (en) | 2006-08-11 | 2012-06-19 | Hall David R | Holder assembly |
US8292372B2 (en) | 2007-12-21 | 2012-10-23 | Hall David R | Retention for holder shank |
US7320505B1 (en) | 2006-08-11 | 2008-01-22 | Hall David R | Attack tool |
US8960337B2 (en) | 2006-10-26 | 2015-02-24 | Schlumberger Technology Corporation | High impact resistant tool with an apex width between a first and second transitions |
US7976239B2 (en) | 2006-12-01 | 2011-07-12 | Hall David R | End of a moldboard positioned proximate a milling drum |
US8485756B2 (en) | 2006-12-01 | 2013-07-16 | David R. Hall | Heated liquid nozzles incorporated into a moldboard |
US8403595B2 (en) | 2006-12-01 | 2013-03-26 | David R. Hall | Plurality of liquid jet nozzles and a blower mechanism that are directed into a milling chamber |
DE102007020303B4 (de) | 2007-04-22 | 2014-10-02 | Schwamborn Gerätebau Gmbh | Rundschaftmeißel für Meißelfräsen nebst Halterung |
DE102007019357B4 (de) * | 2007-04-23 | 2010-03-18 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Schneideinsatz für eine Baumstumpffräse |
US7926883B2 (en) | 2007-05-15 | 2011-04-19 | Schlumberger Technology Corporation | Spring loaded pick |
US8038223B2 (en) | 2007-09-07 | 2011-10-18 | Schlumberger Technology Corporation | Pick with carbide cap |
DE202007018885U1 (de) * | 2007-10-29 | 2009-09-17 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Schaftmeißel |
US7850250B1 (en) * | 2008-08-27 | 2010-12-14 | The Sollami Company | Tool body for rotatable tool |
BG1212U1 (en) * | 2008-09-30 | 2009-09-30 | Schwamborn Geraеtebau Gmbh | BEND FOR THE SURFACE TREATMENT AND MY FITTING TO THE MESH |
US8322796B2 (en) | 2009-04-16 | 2012-12-04 | Schlumberger Technology Corporation | Seal with contact element for pick shield |
US8701799B2 (en) | 2009-04-29 | 2014-04-22 | Schlumberger Technology Corporation | Drill bit cutter pocket restitution |
DE102009049780B4 (de) | 2009-10-19 | 2016-02-18 | Betek Gmbh & Co. Kg | Meißel, insbesondere Rundschaftmeißel |
US8262168B2 (en) | 2010-09-22 | 2012-09-11 | Hall David R | Multiple milling drums secured to the underside of a single milling machine |
US8261471B2 (en) | 2010-06-30 | 2012-09-11 | Hall David R | Continuously adjusting resultant force in an excavating assembly |
DE102010026106A1 (de) | 2010-07-05 | 2012-01-05 | Bomag Gmbh | Fräsmeißelordnung mit Verschleißscheibe |
EP2646653B1 (de) | 2010-12-03 | 2021-04-28 | Wirtgen GmbH | Meisselhalter |
KR101609729B1 (ko) | 2010-12-03 | 2016-04-06 | 비르트겐 게엠베하 | 치즐 홀더 |
DE102010061019A1 (de) | 2010-12-03 | 2012-06-06 | Betek Gmbh & Co. Kg | Meißelhalter und Werkzeugunterteil für einen Meißelhalter |
WO2012072802A2 (de) | 2010-12-03 | 2012-06-07 | Wirtgen Gmbh | MEIßELHALTER UND MEIßELHALTERSYSTEM MIT EINEM MEIßELHALTER UND EINEM BASISTEIL |
JP5822939B2 (ja) | 2010-12-03 | 2015-11-25 | ヴィルトゲン ゲーエム ベーハーWirtgen Gesellschaft Mit Beschrankter Haftung | チゼルホルダ、並びに当該チゼルホルダ及びベース部を具備するチゼルホルダシステム |
CA2765583A1 (en) | 2011-03-04 | 2012-09-04 | Sandvik Intellectual Property Ab | Polygonal shield washer |
USD667855S1 (en) | 2011-04-11 | 2012-09-25 | Betek Gmbh & Co. Kg | Base for a chisel holder |
USD667854S1 (en) | 2011-04-11 | 2012-09-25 | Betek Gmbh & Co. Kg | Chisel holder |
DE102011051525A1 (de) | 2011-07-04 | 2013-01-10 | Wirtgen Gmbh | Meißelhalter für eine Bodenbearbeitungsmaschine |
USD671578S1 (en) | 2011-07-04 | 2012-11-27 | Wirtgen Gmbh | Chisel holder |
USD736283S1 (en) * | 2013-06-19 | 2015-08-11 | Element Six Gmbh | Chisel holder |
DE102014104040A1 (de) * | 2014-03-24 | 2015-09-24 | Betek Gmbh & Co. Kg | Meißel, insbesondere Rundschaftmeißel |
DE102014112539A1 (de) | 2014-09-01 | 2016-03-03 | Wirtgen Gmbh | Verschleißschutzkappe |
US9757833B2 (en) * | 2015-03-09 | 2017-09-12 | Ivoclar Vivadent Ag | Adapter for a dental milling block holder and a workpiece holder |
US10246999B2 (en) | 2016-03-23 | 2019-04-02 | Caterpillar Paving Products Inc. | Locking system to prevent rotation of toolholder |
USD839936S1 (en) * | 2016-05-24 | 2019-02-05 | Kennametal Inc. | Cutting insert and bolster |
US10294786B2 (en) | 2016-05-24 | 2019-05-21 | Kennametal Inc. | Rotatable cutting tool with cutting insert and bolster |
DE102017104649A1 (de) * | 2017-03-06 | 2018-09-06 | POWER-TECHNOLOGIE GmbH | Meißelanordnung und Verfahren zum Lagern eines Rundschaftmeißels |
AU201816544S (en) | 2018-08-01 | 2018-11-27 | Betek Gmbh & Co Kg | A chisel |
CN111622298A (zh) * | 2020-06-10 | 2020-09-04 | 马鞍山奥天机械科技有限公司 | 一种战壕机用挖齿 |
USD960215S1 (en) * | 2020-09-16 | 2022-08-09 | Gary E. Weaver | Shear pick |
USD1015136S1 (en) | 2022-02-21 | 2024-02-20 | Kennametal Inc. | Washer for cutting tools |
US12011852B2 (en) | 2022-02-21 | 2024-06-18 | Kennametal Inc. | Washers for Rotatable Cutting Tools |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2109438A (en) * | 1981-10-21 | 1983-06-02 | Salter & Co Ltd G | Retaining means for use in mounting mining picks in pick bases |
DE3408209A1 (de) * | 1983-03-10 | 1984-09-13 | Santrade Ltd., Luzern | Meisselhalteanordnungen |
US4489986A (en) * | 1982-11-01 | 1984-12-25 | Dziak William A | Wear collar device for rotatable cutter bit |
US4561698A (en) * | 1984-06-21 | 1985-12-31 | Beebe Donald E | Wear protector for tooth brackets on roadway surface cutting machines |
EP0295232A1 (de) * | 1987-06-12 | 1988-12-14 | Sandvik Aktiebolag | Werkzeug zum Brechen, Schneiden oder Bearbeiten von festen Materialien |
DE9213528U1 (de) * | 1992-10-07 | 1993-01-07 | Maloe predprijatie "Pigma", Moskau/Moskva | Gewinnungsvorrichtung einer Bergbaumaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29623215U1 (de) * | 1996-07-30 | 1998-01-02 | Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co KG, 78733 Aichhalden | Werkzeug für eine Schrämmaschine |
US5931542A (en) * | 1997-03-18 | 1999-08-03 | Rogers Tool Works, Inc. | Device and method for preventing wear on road milling and trenching equipment |
US6113195A (en) * | 1998-10-08 | 2000-09-05 | Sandvik Ab | Rotatable cutting bit and bit washer therefor |
DE19964291C2 (de) * | 1999-05-14 | 2003-03-13 | Betek Bergbau & Hartmetall | Werkzeug für eine Schräm-, Bergbau- oder Straßenfräsmaschine |
-
1998
- 1998-12-10 DE DE19856916A patent/DE19856916C1/de not_active Revoked
-
1999
- 1999-11-09 EP EP99973316A patent/EP1137863A4/de not_active Withdrawn
- 1999-11-09 US US09/857,760 patent/US6644755B1/en not_active Expired - Fee Related
- 1999-11-09 WO PCT/EP1999/008596 patent/WO2000034625A1/de not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2109438A (en) * | 1981-10-21 | 1983-06-02 | Salter & Co Ltd G | Retaining means for use in mounting mining picks in pick bases |
US4489986A (en) * | 1982-11-01 | 1984-12-25 | Dziak William A | Wear collar device for rotatable cutter bit |
DE3408209A1 (de) * | 1983-03-10 | 1984-09-13 | Santrade Ltd., Luzern | Meisselhalteanordnungen |
US4561698A (en) * | 1984-06-21 | 1985-12-31 | Beebe Donald E | Wear protector for tooth brackets on roadway surface cutting machines |
EP0295232A1 (de) * | 1987-06-12 | 1988-12-14 | Sandvik Aktiebolag | Werkzeug zum Brechen, Schneiden oder Bearbeiten von festen Materialien |
DE9213528U1 (de) * | 1992-10-07 | 1993-01-07 | Maloe predprijatie "Pigma", Moskau/Moskva | Gewinnungsvorrichtung einer Bergbaumaschine |
Non-Patent Citations (1)
Title |
---|
See also references of WO0034625A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6644755B1 (en) | 2003-11-11 |
EP1137863A4 (de) | 2002-03-06 |
WO2000034625A1 (de) | 2000-06-15 |
DE19856916C1 (de) | 2000-08-31 |
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