ZA876962B - Rotatable cutting bit - Google Patents

Rotatable cutting bit

Info

Publication number
ZA876962B
ZA876962B ZA876962A ZA876962A ZA876962B ZA 876962 B ZA876962 B ZA 876962B ZA 876962 A ZA876962 A ZA 876962A ZA 876962 A ZA876962 A ZA 876962A ZA 876962 B ZA876962 B ZA 876962B
Authority
ZA
South Africa
Prior art keywords
retainer
rearward
bore
rear end
rotatable cutting
Prior art date
Application number
ZA876962A
Inventor
Wayne H Beach
H Beach Wayne
Robert H Montgommery
H Montgommery Robert
Lawrence R Burns
R Burns Lawrence
Original Assignee
Kennametal Inc
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 Kennametal Inc filed Critical Kennametal Inc
Publication of ZA876962B publication Critical patent/ZA876962B/en

Links

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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Earth Drilling (AREA)
  • Road Repair (AREA)
  • Drilling Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Harvester Elements (AREA)
  • Threshing Machine Elements (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Table Equipment (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A rotatable cutting tool (30) for mounting in the bore (22) of a bock comprising an elongate symmetrical body (32) having forward (34) and rearward (36) portions wherein the forward (34) portion terminates in a front end at which there is a cutting tip (44) and the rearward (36) portion is of a generally constant diameter and terminates in a rear end (46). The rearward (36) portion contains a channel adjacent the rear end (46). A resilient retainer (60) surrounds substantially all of the rearward (36) portion and extends rearwardly past the rear end (46). The retainer (60) has an inward projection (74) which is received within the channel so that the elongate body (32) and retainer are retained together. The retainer (60) has an unstressed diameter greater than the diameter of the bore (22) so that when the cutting tool (30) is inserted into the bore (22) the retainer (60) expands against the bore (22) so as to be held therein whereby the body (32) is free to rotate relative to the block (14).
ZA876962A 1986-10-07 1987-09-16 Rotatable cutting bit ZA876962B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91633686A 1986-10-07 1986-10-07

Publications (1)

Publication Number Publication Date
ZA876962B true ZA876962B (en) 1988-07-27

Family

ID=25437096

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA876962A ZA876962B (en) 1986-10-07 1987-09-16 Rotatable cutting bit

Country Status (10)

Country Link
EP (1) EP0264015B1 (en)
JP (1) JPS63161288A (en)
AT (1) ATE56248T1 (en)
AU (1) AU592017B2 (en)
BR (1) BR8705346A (en)
CA (1) CA1301781C (en)
DE (1) DE3764760D1 (en)
DK (1) DK523087A (en)
ES (1) ES2005372A6 (en)
ZA (1) ZA876962B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461165B (en) * 1987-06-12 1990-01-15 Hans Olav Norman TOOLS FOR MINING, CUTTING OR PROCESSING OF SOLID MATERIALS
US5303984A (en) * 1992-11-16 1994-04-19 Valenite Inc. Cutting bit holder sleeve with retaining flange
DE9411438U1 (en) * 1994-07-16 1994-11-10 Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik, 36149 Burghaun Picks with lock protection
DE19720635C2 (en) * 1997-05-16 1999-05-12 Betek Bergbau & Hartmetall Chisel
US7380888B2 (en) 2001-04-19 2008-06-03 Kennametal Inc. Rotatable cutting tool having retainer with dimples
DE10142438B4 (en) * 2001-07-04 2007-09-13 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Mounting arrangement for a shank bit
DE102005051449B3 (en) 2005-10-27 2007-03-01 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Circular shank chisel, has retaining units divided between edges, which are at distance from each other and extend over part of circumference of clamping sleeve, where units form co-axial concave central section turned to convex groove base
DE102005051450B4 (en) * 2005-10-27 2010-08-05 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Round shank chisel and chisel holder
JP5336597B2 (en) * 2008-08-18 2013-11-06 サンドビック インテレクチュアル プロパティー アクティエボラーグ Sleeve retainer for tool step shank
US7789468B2 (en) * 2008-08-19 2010-09-07 The Sollami Company Bit holder usable in bit blocks having either of a cylindrical or non-locking taper bore
US8622482B2 (en) * 2008-08-19 2014-01-07 Phillip Sollami Bit holder usable in bit blocks having either of a cylindrical or non-locking taper bore
JP6636548B2 (en) * 2018-01-31 2020-01-29 エポコラム機工株式会社 Conical bit
US11898446B1 (en) 2022-07-29 2024-02-13 Kennametal Inc. Tool retainer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519309A (en) * 1965-08-12 1970-07-07 Kennametal Inc Rotary cone bit retained by captive keeper ring
AU490754B2 (en) * 1976-08-23 1976-11-04 Carmet Company Mine tool and keeper
US4201421A (en) * 1978-09-20 1980-05-06 Besten Leroy E Den Mining machine bit and mounting thereof
US4575156A (en) * 1984-03-13 1986-03-11 Fansteel Inc. Mining block and bit

Also Published As

Publication number Publication date
DK523087D0 (en) 1987-10-06
DE3764760D1 (en) 1990-10-11
JPS63161288A (en) 1988-07-04
EP0264015B1 (en) 1990-09-05
AU592017B2 (en) 1989-12-21
DK523087A (en) 1988-04-08
BR8705346A (en) 1988-05-24
ATE56248T1 (en) 1990-09-15
EP0264015A1 (en) 1988-04-20
CA1301781C (en) 1992-05-26
AU7900987A (en) 1988-04-21
ES2005372A6 (en) 1989-03-01

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