[go: up one dir, main page]

PL295048A1 - Cutter bit securing system - Google Patents

Cutter bit securing system

Info

Publication number
PL295048A1
PL295048A1 PL29504892A PL29504892A PL295048A1 PL 295048 A1 PL295048 A1 PL 295048A1 PL 29504892 A PL29504892 A PL 29504892A PL 29504892 A PL29504892 A PL 29504892A PL 295048 A1 PL295048 A1 PL 295048A1
Authority
PL
Poland
Prior art keywords
pick
shearing
holder
pocket
holding element
Prior art date
Application number
PL29504892A
Original Assignee
Boart Hwf Gmbh Co Kg
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 Co Kg filed Critical Boart Hwf Gmbh Co Kg
Publication of PL295048A1 publication Critical patent/PL295048A1/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
    • 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
    • E21C35/186—Mining picks; Holders therefor using a locking piston actuated hydraulically, e.g. by spraying-fluid pressure
    • 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

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

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>
PL29504892A 1991-06-29 1992-06-26 Cutter bit securing system PL295048A1 (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
PL295048A1 true PL295048A1 (en) 1993-03-08

Family

ID=6435126

Family Applications (1)

Application Number Title Priority Date Filing Date
PL29504892A PL295048A1 (en) 1991-06-29 1992-06-26 Cutter bit securing system

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
AU2010365393B2 (en) * 2010-12-17 2015-07-09 Esco Windber Inc. 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
EP0521413A1 (en) 1993-01-07
EP0521413B1 (en) 1994-07-27
ATE109247T1 (en) 1994-08-15
DE4121674C1 (en) 1993-02-11
DE59200320D1 (en) 1994-09-01

Similar Documents

Publication Publication Date Title
SE9501687D0 (en) Tools for cutting machining
DE3365875D1 (en) Boring and countersinking head and tool for boring and countersinking placed in it, and method of boring and countersinking a work piece
WO1996004089A3 (en) Finishing tool for precision machining of holes
ES2132876T3 (en) MACHINE TOOL WITH HORIZONTAL SPINDLES.
DE3783036D1 (en) MACHINING CENTER WITH FLUID FEEDING DEVICE CENTER.
DE69311485D1 (en) Dental handpiece with non-return valve
ATE88392T1 (en) COMBINED TOOL FOR DRILLING A HOLE AND THREAD CUTTING.
EP0079546A3 (en) Numerically controlled automatic tool changing machining center having a bar-type spindle
CA2018913A1 (en) Miner cutting bit holding apparatus
EP0364821A3 (en) Tool adapter for a machine tool spindle
PL295048A1 (en) Cutter bit securing system
FR2677292B1 (en) POLISHING MACHINE WITH PNEUMATIC REGULATION OF THE EFFORT OF THE TOOL OF THE POLISHING PIECE.
GB2223965B (en) Operating head chuck unit for automatic machine tools
GB2218360B (en) Work supplying system for machine tools
EP0252291A3 (en) Metal working machine with spindle head
SE8704655L (en) TOOL MACHINE SPINDLE AND ADJUSTED TOOL HOLDER
CS248086A2 (en) Device for pressure medium&#39;s intermittent supply to cutting head&#39;s sliding tools
ZA864172B (en) Device for supplying fluid to a tool for breaking hard material,said tool being mounted in a holder
ES554612A0 (en) DEVICE FOR THE HOLDING OF A CUTTING CHISEL AS WELL AS FOR THE CONTROL OF THE FEEDING OF THE INJECTION MEDIA BY NOZZLES IN A GALLERY OPENING MACHINE
EP0200699A3 (en) Device for supplying fluid at tools for breaking solid material
ES8702573A1 (en) Shearer.
GB2167108B (en) Gallery driving machine cutting tool holder and spray supply control
GB9909396D0 (en) Improvements relating to machine tools
DE3781810D1 (en) DEVICE FOR CHANGING TOOLS IN MACHINE TOOLS.
MY121547A (en) Chip-replaceable nose bar and veneer peeling machine using the same.