EP1945909B1 - Rundschaftmeissel mit meisselhalter - Google Patents

Rundschaftmeissel mit meisselhalter Download PDF

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Publication number
EP1945909B1
EP1945909B1 EP06762197A EP06762197A EP1945909B1 EP 1945909 B1 EP1945909 B1 EP 1945909B1 EP 06762197 A EP06762197 A EP 06762197A EP 06762197 A EP06762197 A EP 06762197A EP 1945909 B1 EP1945909 B1 EP 1945909B1
Authority
EP
European Patent Office
Prior art keywords
clamping sleeve
shank
round
pick
holding elements
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.)
Active
Application number
EP06762197A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1945909A1 (de
Inventor
Karl Kammerer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Betek GmbH and Co KG
Original Assignee
Betek Bergbau und Hartmetalltechnik Karl Heinz Simon GmbH and Co KG DE
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 Betek Bergbau und Hartmetalltechnik Karl Heinz Simon GmbH and Co KG DE filed Critical Betek Bergbau und Hartmetalltechnik Karl Heinz Simon GmbH and Co KG DE
Priority to PL06762197T priority Critical patent/PL1945909T3/pl
Publication of EP1945909A1 publication Critical patent/EP1945909A1/de
Application granted granted Critical
Publication of EP1945909B1 publication Critical patent/EP1945909B1/de
Anticipated expiration legal-status Critical
Active legal-status Critical Current

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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
    • 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

  • the invention relates to a round shank bit with chisel holder, wherein the shank of the round shank chisel is held in the bore of the chisel holder by means of a slotted clamping sleeve, wherein the clamping sleeve is clamped to the bore wall of the bore and the shaft of the round shank chisel is rotatably held in the clamping sleeve, wherein the Clamping sleeve is provided with inwardly stamped and / or depressed holding elements, which are distributed over the circumference of the clamping sleeve and engage in an inserted into the shank of the round shank chisel circumferential groove so that the clamping sleeve is held immovably in the axial direction on the shank of the round shank chisel.
  • the axial position of the clamping sleeve on the shank of the round shank chisel is important so that the front sides of the clamping sleeve exposed and the clamping sleeve has the smallest possible axial play.
  • the shaft of the round shank chisel in the clamping sleeve must be centered by the holding technique so that the shaft is freely rotatably guided in the, clamped in the bore of the chisel holder clamping sleeve.
  • a round shank chisel with chisel holder of the type mentioned is from the EP 0 264 015 A1 , of the US 4,850,649 and the DE 37 12 427 A1 known.
  • the holding elements point or web-like are pressed inwards, so that they have a more or less large axial play in the circumferential groove of the shank, which also affects the round shank chisel in the bore of the chisel holder in the clamped clamping sleeve the holding elements in the circumferential groove of the shank of the round shank chisel no sufficient guide surfaces for a clear centering of the shank, whereby its rotational movement is impaired in the clamping sleeve.
  • FIG. 1 Another embodiment of a round shank chisel is in the EP 0 295 232 shown.
  • the clamping sleeve over its entire circumference a groove which is rolled in the direction of the drill collar.
  • the clamping sleeve engages in the circumferential groove in the chisel shaft.
  • the WO 03/004832 A1 shows a clamping sleeve in which lobe-like holding elements are punched out of the sleeve material and bent in the direction of the drill collar towards.
  • the holding elements divided between two transverse to the longitudinal axis of the clamping sleeve directed punching edges and stamped and / or indented inwardly, that the punching edges extend over a portion of the circumference of the clamping sleeve and to each other at a distance corresponding to the width of the circumferential groove in the shank of the round shank chisel, and that the holding elements facing the convex groove bottom of the circumferential groove form a coaxial, concave centering.
  • the adaptation of the width of the holding elements to the width of the circumferential groove in the shank of the round shank chisel brings a reduction of the axial clearance between the clamping sleeve and shank, while the convex groove bottom of the circumferential groove with facing coaxial, concave centering of the holding elements optimizes the functions of the round shank chisel in the bit holder.
  • the clamping sleeve has three holding elements, of which a holding element facing the slot of the clamping sleeve, and that the other two holding elements are offset relative to the one holding element on the circumference of the clamping sleeve each by about 100 °.
  • the number of holding elements is reduced to a minimum.
  • the width of the circumferential groove and thus the width of the holding elements is selected about 1/7 to 1/6 of the axial dimension of the clamping sleeve and that the concave centering of the holding elements over an angular range of about 30 ° extend to 50 ° of the circumference of the clamping sleeve.
  • a further embodiment provides that the ends of the concave centering projections of the holding elements pass over a convex curve a transition section and a concave curve in the inner wall of the clamping sleeve, that the convex outer portions of the clamping sleeve opposite the concave centering sections merge at the ends via a concave curve into the outer wall of the clamping sleeve.
  • the holding elements are stamped and / or pressed inwards to such an extent that the convex outer sections facing the concave centering sections are spaced from the inner wall of the clamping sleeve, and the depth of the circumferential groove in the shank of the round shank chisel is so is dimensioned that abut the concave centering of the holding elements clamped in the bore of the chisel holder clamping sleeve on the groove bottom of the circumferential groove or occupy a small distance to this. This optimizes the centering of the shank of the round shank chisel in the clamping sleeve.
  • the critical point of the clamping sleeve lies on the side of the chisel tip facing the end of the clamping sleeve.
  • an embodiment provides that the chisel tip facing end face of the clamping sleeve is at a distance from the conical insertion section of the hole in the chisel holder, which has a conical shoulder of the chisel head or a centering approach a arranged between bit holder and chisel head wear plate receives.
  • the clamping sleeve 10 carries a parallel to the longitudinal axis 19 slot 11 and distributed over the circumference three holding elements 16, 17, 18.
  • the holding element 16 is located opposite the slot 11.
  • the holding elements 16, 17, 18 are each separated by two parallel punching edges 20 and 21, which are directed transversely to the longitudinal axis 19 and extend over an angle plate of about 30 ° to 50 ° of the circumference of the clamping sleeve 10.
  • the holding elements 16, 17 and 18 are punched and / or pressed inwards and form a convex groove bottom of the circumferential groove 39 coaxial, concave centering 22nd
  • the holding elements 16, 17 and 18 are determined in their width by the distance of the punching edges 20 and 21 and matched to the width of the circumferential groove 39 in the shaft 31 of the round shank bit 30.
  • the concave centering sections 22 of the holding elements 16, 17 and 18 pass at their ends via a convex curve 26, a transition section and a concave curve 25 in the inner wall of the clamping sleeve 10, while the concave centering sections 22 opposite convex outer portions of the holding elements 16, 17 and 18 at their ends over a concave curve 24, a transition section and a convex curve 23 in the outer wall of the clamping sleeve 10 pass.
  • This sharp edges are avoided on the stamped and / or depressed holding elements 16, 17 and 18, which can affect the free rotation of the shaft 31 in the clamping sleeve 10 and the full clamping of the clamping sleeve 10 in the bore 41 of the bit holder 40.
  • Fig. 3 how out Fig. 3 is derived further, the holding elements 16, 17, and 18 are stamped and / or pressed inward so far that their concave centering 22 abut with biased clamping sleeve 10 in the bore 41 of the bit holder 40 on the convex groove bottom of the circumferential groove 39 of the shaft 31 or stand to this at a small distance, which in turn benefits the free rotatability of the shaft 31 in the clamping sleeve 10.
  • the depth of the circumferential groove 39 in the shaft 31 of the round shank bit 30 is further dimensioned so that the convex outer portions of the holding elements 16, 17 and 18 occupy a small distance from the inner wall of the clamping sleeve 10, as well as the Fig. 3 can be seen.
  • the width of the holding elements 16, 17 and 18 is about 1/7 to 1/6 of the length of the clamping sleeve 10, as the Fig. 2 shows.
  • the holding elements 16, 17 and 18, as in the known round shank chisels with bit holder in the end of clamping sleeve 10 and shaft 31 may be arranged, which faces away from the chisel tip and provided with the circumferential groove 39.
  • the holding elements 16, 17 and 18 may also be arranged in the region of the median transverse plane 38 of the clamping sleeve 10 and in the in this Area of the shaft 31 inserted circumferential groove 39 engage.
  • the clamping sleeve 10 can then be applied in two positions on the shaft 31 and fixed in one of two identical positions thereon. This facilitates the installation of the clamping sleeve 10, since it does not have to be brought into a specific position to the shaft 31 before.
  • the centering of the shaft 31 and the free rotatability of the same is improved because the clamping sleeve 10 can tilt less in their longitudinal direction.
  • the circumferential groove 39 in the shaft 31 and the holding elements 16, 17 and 18 are coordinated so that even the chisel tip 37 facing end face 12 does not project into the conical insertion portion 42 of the bore 41 in the bit holder 40 and is exposed.
  • the conical insertion portion 42 of the chisel head 36 projects with a conical shoulder 32 of the collar 33, to which the withdrawal throat 34 and the discharge collar 35 of the chisel head 36 connects.
  • the chisel tip 37 is inserted from hard metal.
  • a wear plate which protrudes with a spigot in the conical insertion portion 42 of the bore 41 in the chisel holder 40 and so does not come into contact with the facing end face 12 of the clamping sleeve 10.

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Gripping On Spindles (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Knives (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Adornments (AREA)
  • Food-Manufacturing Devices (AREA)
  • Stringed Musical Instruments (AREA)
  • Milling Processes (AREA)
EP06762197A 2005-10-27 2006-06-27 Rundschaftmeissel mit meisselhalter Active EP1945909B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06762197T PL1945909T3 (pl) 2005-10-27 2006-06-27 Nóż z chwytem okrągłym z obsadą noża

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005051449A DE102005051449B3 (de) 2005-10-27 2005-10-27 Rundschaftmeißel mit Meißelhalter
PCT/EP2006/006158 WO2007048456A1 (de) 2005-10-27 2006-06-27 Rundschaftmeissel mit meisselhalter

Publications (2)

Publication Number Publication Date
EP1945909A1 EP1945909A1 (de) 2008-07-23
EP1945909B1 true EP1945909B1 (de) 2009-09-09

Family

ID=36954254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762197A Active EP1945909B1 (de) 2005-10-27 2006-06-27 Rundschaftmeissel mit meisselhalter

Country Status (14)

Country Link
US (1) US7922257B2 (da)
EP (1) EP1945909B1 (da)
JP (1) JP4741675B2 (da)
KR (1) KR101004371B1 (da)
CN (2) CN101297100B (da)
AT (1) ATE442514T1 (da)
AU (1) AU2006308265B2 (da)
DE (3) DE102005051449B3 (da)
DK (1) DK1945909T3 (da)
ES (1) ES2333468T3 (da)
PL (1) PL1945909T3 (da)
RU (1) RU2380538C2 (da)
TW (1) TWI341898B (da)
WO (1) WO2007048456A1 (da)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005051449B3 (de) * 2005-10-27 2007-03-01 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Rundschaftmeißel mit Meißelhalter
DE102008052389A1 (de) * 2008-10-16 2010-04-22 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Meißel
DE102009049780B4 (de) 2009-10-19 2016-02-18 Betek Gmbh & Co. Kg Meißel, insbesondere Rundschaftmeißel
BR112013012781B8 (pt) 2010-12-03 2022-06-14 Wirtgen Gmbh Retentor de cinzel e sistema retentor de cinzel
DE102010061019A1 (de) 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Meißelhalter und Werkzeugunterteil für einen Meißelhalter
TWI483798B (zh) 2010-12-03 2015-05-11 Wirtgen Gmbh 刀架以及具有刀架和基礎部件的刀架系統
AU2011334838B2 (en) 2010-12-03 2016-05-19 Wirtgen Gmbh Chisel holder
HUE055782T2 (hu) 2010-12-03 2021-12-28 Wirtgen Gmbh Késtartó
USD667855S1 (en) 2011-04-11 2012-09-25 Betek Gmbh & Co. Kg Base for a chisel holder
USD667856S1 (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
USD666226S1 (en) 2011-07-04 2012-08-28 Wirtgen Gmbh Chisel holder
DE102011054384A1 (de) * 2011-10-11 2013-04-11 Betek Gmbh & Co. Kg Meißelhalter
DE102011054393A1 (de) * 2011-10-11 2013-04-11 Betek Gmbh & Co. Kg Schaftmeißel
DE102015002712A1 (de) 2014-03-10 2015-09-10 Bomag Gmbh Rundschaftmeißelanordnung, Sicherungsring für eine Rundschaftmeißelanordnung, Set mit einer Spannhülse und einem Sicherungsring und Verfahren zum Sichern eines Rundschaftmeißels in einem Meißelhalter
CN106149535B (zh) * 2015-03-27 2019-04-12 永沛得股份有限公司 刀具夹持器
CN105149697A (zh) * 2015-07-09 2015-12-16 安徽省皖江机电设备制造有限公司 一种截齿用的抛光装置
AU201816544S (en) 2018-08-01 2018-11-27 Betek Gmbh & Co Kg A chisel
US11719098B2 (en) 2021-09-10 2023-08-08 Kennametal Inc. Tool retainer
USD1065994S1 (en) 2022-07-29 2025-03-11 Kennametal Inc. Tool retainer
US11898446B1 (en) 2022-07-29 2024-02-13 Kennametal Inc. Tool retainer

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767266A (en) * 1970-08-10 1973-10-23 Cincinnati Mine Machinery Co Resilient retaining means for connecting work tools and work tool holders
US4327947A (en) 1980-06-17 1982-05-04 General Electric Company Keeper spring for connecting mining tool to work tool holder
US4684176A (en) * 1984-05-16 1987-08-04 Den Besten Leroy E Cutter bit device
US4850649A (en) * 1986-10-07 1989-07-25 Kennametal Inc. Rotatable cutting bit
ZA876962B (en) 1986-10-07 1988-07-27 Kennametal Inc Rotatable cutting bit
DE3712427A1 (de) * 1987-04-11 1988-10-27 Betek Bergbau & Hartmetall Rundschaftmeissel mit meisselhalter
SE461165B (sv) * 1987-06-12 1990-01-15 Hans Olav Norman Verktyg foer brytning, avverkning eller bearbetning av fasta material
SU1548431A1 (ru) * 1988-05-03 1990-03-07 Научно-Производственное Объединение Самоходной Горной Техники "Криворожрудмаш" Режущий инструмент горной машины
US5503463A (en) * 1994-12-23 1996-04-02 Rogers Tool Works, Inc. Retainer scheme for cutting tool
US5628549A (en) * 1995-12-13 1997-05-13 Kennametal Inc. Cutting tool sleeve rotation limitation system
CN1240495A (zh) * 1996-12-19 2000-01-05 钴碳化钨硬质合金公司 切割刀具套筒的旋转限制系统
DE19720635C2 (de) * 1997-05-16 1999-05-12 Betek Bergbau & Hartmetall Schaftmeißel
JPH11132383A (ja) * 1997-10-29 1999-05-21 Sekisui Chem Co Ltd 外環状溝付き管の成形方法
DE19803166C2 (de) * 1998-01-28 2000-05-11 Betek Bergbau & Hartmetall Rundschaftmeißel für eine Schrämmaschine oder dgl.
RU2132949C1 (ru) * 1998-07-02 1999-07-10 Закрытое акционерное общество "Пигма-Кеннаметал" Резцовый блок
US6070945A (en) * 1998-07-15 2000-06-06 Kennametal Inc. Cutting tool retainer
US6786557B2 (en) * 2000-12-20 2004-09-07 Kennametal Inc. Protective wear sleeve having tapered lock and retainer
US7380888B2 (en) * 2001-04-19 2008-06-03 Kennametal Inc. Rotatable cutting tool having retainer with dimples
US6702393B2 (en) * 2001-05-23 2004-03-09 Sandvik Rock Tools, Inc. Rotatable cutting bit and retainer sleeve therefor
DE20121298U1 (de) * 2001-07-04 2002-09-05 Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG, 78733 Aichhalden Befestigungsanordnung
RU2198292C1 (ru) * 2001-11-12 2003-02-10 Леванковский Игорь Анатольевич Устройство для разрушения минеральных и искусственных материалов
US7229136B2 (en) * 2004-09-28 2007-06-12 The Sollami Company Non-rotatable wear ring and retainer sleeve for a rotatable tool
US20060125308A1 (en) * 2004-12-14 2006-06-15 The Sollami Company Wear ring and extraction device for a rotatable tool
DE102005051449B3 (de) * 2005-10-27 2007-03-01 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Rundschaftmeißel mit Meißelhalter

Also Published As

Publication number Publication date
CN101696630A (zh) 2010-04-21
RU2380538C2 (ru) 2010-01-27
TW200726901A (en) 2007-07-16
EP1945909A1 (de) 2008-07-23
ES2333468T3 (es) 2010-02-22
CN101297100B (zh) 2011-04-06
JP4741675B2 (ja) 2011-08-03
DK1945909T3 (da) 2010-01-18
JP2009513850A (ja) 2009-04-02
US20090160237A1 (en) 2009-06-25
RU2008116675A (ru) 2009-10-27
KR101004371B1 (ko) 2010-12-27
US7922257B2 (en) 2011-04-12
AU2006308265B2 (en) 2010-03-11
ATE442514T1 (de) 2009-09-15
DE502006004821D1 (de) 2009-10-22
PL1945909T3 (pl) 2010-02-26
WO2007048456A1 (de) 2007-05-03
AU2006308265A1 (en) 2007-05-03
KR20080069582A (ko) 2008-07-28
CN101696630B (zh) 2013-02-06
CN101297100A (zh) 2008-10-29
TWI341898B (en) 2011-05-11
DE102005051449B3 (de) 2007-03-01
DE202006020765U1 (de) 2009-12-10

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