DE59200320D1 - Attachment of a cutter bit in its holder. - Google Patents

Attachment of a cutter bit in its holder.

Info

Publication number
DE59200320D1
DE59200320D1 DE59200320T DE59200320T DE59200320D1 DE 59200320 D1 DE59200320 D1 DE 59200320D1 DE 59200320 T DE59200320 T DE 59200320T DE 59200320 T DE59200320 T DE 59200320T DE 59200320 D1 DE59200320 D1 DE 59200320D1
Authority
DE
Germany
Prior art keywords
pick
shearing
holder
pocket
holding element
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.)
Expired - Fee Related
Application number
DE59200320T
Other languages
German (de)
Inventor
Ernst Heiderich
Rudolf Dichtl
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.)
Boart Longyear GmbH and Co KG
Original Assignee
Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik
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 Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik filed Critical Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik
Application granted granted Critical
Publication of DE59200320D1 publication Critical patent/DE59200320D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21C35/186—Mining picks; Holders therefor using a locking piston actuated hydraulically, e.g. by spraying-fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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

Abstract

During the fixing of a shearing pick (16) in its holder, the shearing pick (16) having a pick shank (15) and the holder having a pick pocket (8) which accommodates the pick shank (15) and is fixed to the work head (2) of a winning machine, with at least one holding element which holds the shearing pick (16) in the pick pocket (8), each holding element being designed as at least one working piston (13) which is arranged in the pick pocket (8), can be actuated by pressure and exerts on the shearing pick (16) a clamping force directed perpendicularly to its longitudinal axis (16c), short replacement times are made possible in a simple shape of the shearing pick (16) without a great deal of design effort and at the same time the reliable retention of the shearing pick (16) in the holder for the entire duration of its use is ensured by each working piston (13) being acted upon by pressure via a pressurised supply line (3) for spray liquid supplying at least one spray nozzle. <IMAGE>
DE59200320T 1991-06-29 1992-06-26 Attachment of a cutter bit in its holder. Expired - Fee Related DE59200320D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4121674A DE4121674C1 (en) 1991-06-29 1991-06-29

Publications (1)

Publication Number Publication Date
DE59200320D1 true DE59200320D1 (en) 1994-09-01

Family

ID=6435126

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4121674A Expired - Fee Related DE4121674C1 (en) 1991-06-29 1991-06-29
DE59200320T Expired - Fee Related DE59200320D1 (en) 1991-06-29 1992-06-26 Attachment of a cutter bit in its holder.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4121674A Expired - Fee Related DE4121674C1 (en) 1991-06-29 1991-06-29

Country Status (4)

Country Link
EP (1) EP0521413B1 (en)
AT (1) ATE109247T1 (en)
DE (2) DE4121674C1 (en)
PL (1) PL295048A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9704554D0 (en) * 1997-03-05 1997-04-23 Bingham Engineering Ltd Semi-locking pick box assembly
US6176552B1 (en) * 1998-10-05 2001-01-23 Kennametal Inc. Cutting bit support member with undercut flange for removal
US6331035B1 (en) 1999-03-19 2001-12-18 Kennametal Pc Inc. Cutting tool holder assembly with press fit
CN103403295B (en) * 2010-12-17 2015-07-08 爱斯科温德伯公司(美国) Holder block assembly for a cutting tool having a hydraulic piston and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965365A (en) * 1958-04-14 1960-12-20 Cincinnati Mine Machinery Co Bit and resilient holding means therefor
GB956513A (en) * 1962-02-24 1964-04-29 Macdonald & Company Haydock Lt Hydraulic pick or tool holder
GB1550353A (en) * 1976-05-17 1979-08-15 Wickman Wimet Ltd Mineral cutting picks and boxes
DE3935691A1 (en) * 1989-10-26 1991-05-02 Gewerk Eisenhuette Westfalia CHISEL ARRANGEMENT FOR MINING MINING MACHINES AND THE LIKE, IN PARTICULAR FOR PLANER

Also Published As

Publication number Publication date
PL295048A1 (en) 1993-03-08
EP0521413A1 (en) 1993-01-07
EP0521413B1 (en) 1994-07-27
DE4121674C1 (en) 1993-02-11
ATE109247T1 (en) 1994-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee