EP0198643A2 - Mineralschneidmeissel - Google Patents

Mineralschneidmeissel Download PDF

Info

Publication number
EP0198643A2
EP0198643A2 EP86302552A EP86302552A EP0198643A2 EP 0198643 A2 EP0198643 A2 EP 0198643A2 EP 86302552 A EP86302552 A EP 86302552A EP 86302552 A EP86302552 A EP 86302552A EP 0198643 A2 EP0198643 A2 EP 0198643A2
Authority
EP
European Patent Office
Prior art keywords
pick
head
holder
water
jets
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Withdrawn
Application number
EP86302552A
Other languages
English (en)
French (fr)
Other versions
EP0198643A3 (de
Inventor
Henry Mcgaw Brown
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.)
Anderson Strathclyde PLC
Original Assignee
Anderson Strathclyde PLC
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 Anderson Strathclyde PLC filed Critical Anderson Strathclyde PLC
Publication of EP0198643A2 publication Critical patent/EP0198643A2/de
Publication of EP0198643A3 publication Critical patent/EP0198643A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles

Definitions

  • the invention relates to mineral cutting picks more particularly, but not exclusively, for mining coal.
  • a method of flushing a mineral cutter pick of the kind having a head terminated with a hard cutting tip, with water, comprising directing one or more jets of water at the pick at an acute angle to the head of the pick so that the water strikes the pick head and is carried forward over the surface of the pick head by its own momentum into the vicinity of the cutting tip.
  • the jet or jets of water strike the head near to the cutting tip.
  • the jets are arranged in pairs disposed in front of, or behind, the pick head the jets in each pair being directed such that they strike the opposite sides of the pick head
  • two pairs of the jets are provided, one pair in front of and the other pair behind the pick head, the arrangement being such that the two jets on each side of the head are angled towards one another so that they meet substantially at the position at which they strike the pick head.
  • the jets are arranged in two pairs, one pair being disposed on each side of the pick head. In this manner substantially the whole of the cutting tip can be flushed with water.
  • the invention provides means for carrying out the method described above.
  • the flushing water is carried through a holder in which the cutting pick to be flushed is arranged to be mounted for use and the holder is formed with water outlets which form the water into the required jets.
  • the water outlets are preferably disposed in the top of the holder.
  • the top of the holder may be substantially rectangular and the holder may be formed with a substantially centrally disposed socket for retaining the shank of the mineral cutting pick.
  • the water outlets may be positioned at or near each corner of the top of the holder so that they are substantially equally disposed about a pick mounted in the holder.
  • the invention is a holder for a mineral cutting pick comprising flushing means as described above.
  • the invention is a combination of a pick holder as described above and a pick mounted therein.
  • a coal cutter pick 4 mounted in a holder or pick box 8 which is arranged to be mounted on a mineral mining machine for example a disc or shearer drum e.g. by welding.
  • the pick 4 comprises in conventional fashion a blade 5 terminated by a hard cutting insert 6 usually of tungsten carbide and a shank 7 of rectangular section which is disposed in a correspondingly shaped rectangular socket 9 in the holder 8.
  • the pick 4 is retained in the holder 8 by means of a latching mechanism generally indicated at 10 which may be of any suitable kind.
  • the holder 8 is formed in its interior with bores 11 through which water is transmitted to jets 12 disposed in the upper face 15 of the holder, and the jets 12 are arranged so that the water issues in streams generally indicated at 13.
  • the jets are arranged in two pairs, one pair being disposed on each side of the blade of the cutting pick and the jets in each pair are arranged so that the streams of water 13 converge and meet at a position 14, this also being the position at which the two streams 13 strike the pick blade.
  • the angle at which the streams of water strike the pick blade is acute so that the water is impelled by its own momentum and by surface tension to travel over the surface of the blade into the vicinity of the cutting tip 6.

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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP86302552A 1985-04-10 1986-04-07 Mineralschneidmeissel Withdrawn EP0198643A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858509143A GB8509143D0 (en) 1985-04-10 1985-04-10 Mineral cutting picks
GB8509143 1985-04-10

Publications (2)

Publication Number Publication Date
EP0198643A2 true EP0198643A2 (de) 1986-10-22
EP0198643A3 EP0198643A3 (de) 1987-02-04

Family

ID=10577378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302552A Withdrawn EP0198643A3 (de) 1985-04-10 1986-04-07 Mineralschneidmeissel

Country Status (4)

Country Link
EP (1) EP0198643A3 (de)
AU (1) AU5569686A (de)
GB (2) GB8509143D0 (de)
ZA (1) ZA862655B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999047791A1 (de) * 1998-03-17 1999-09-23 Tamrock Voest-Alpine Bergtechnik Gesellschaft Mbh Bedüsungseinrichtung für meissel sowie verfahren zum bedüsen der rundschaftmeissel einer schrämeinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407896B (de) * 1997-04-29 2001-07-25 Tamrock Voest Alpine Bergtech Einrichtung zum bedüsen der schneidspur von schrämwerkzeugen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061972A (en) * 1963-01-25 1967-03-15 Coal Industry Patents Ltd Improvements in cutter picks for mining machines
GB1135193A (en) * 1965-02-05 1968-12-04 Coal Industry Patents Ltd Dust suppression on mineral mining machines
AT281904B (de) * 1968-07-16 1970-06-10 Atlas Copco Mct Ab Einrichtung zur Messerkühlung bei Tunnel- bzw. Stollenvortriebsmaschinen, Gewinnungsmaschinen od.dgl.
GB1364651A (en) * 1971-03-12 1974-08-29 Coal Industry Patents Ltd Dust suppression means for mining machines
GB1573505A (en) * 1977-11-24 1980-08-28 Padley & Venables Ltd Pick holder assemblies and pick holding blocks therefor
AT358509B (de) * 1978-10-10 1980-09-10 Voest Ag Einrichtung zum kuehlen der meissel von schraem- koepfen und der ortsbrust
GB2050469B (en) * 1979-04-05 1982-11-10 Rich Services Inc Roy Mineral-mining cutter drum
GB2054007A (en) * 1979-07-20 1981-02-11 Rich Services Inc Roy Water directing means for a cutting machine
GB2117275B (en) * 1982-03-26 1986-03-12 Hayden Nilos Conflow Ltd Liquid spray head
GB2138053B (en) * 1983-04-08 1987-09-03 Santrade Ltd Device for supplying fluid to a tool for breaking hard material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999047791A1 (de) * 1998-03-17 1999-09-23 Tamrock Voest-Alpine Bergtechnik Gesellschaft Mbh Bedüsungseinrichtung für meissel sowie verfahren zum bedüsen der rundschaftmeissel einer schrämeinrichtung

Also Published As

Publication number Publication date
EP0198643A3 (de) 1987-02-04
GB2173842A (en) 1986-10-22
ZA862655B (en) 1986-11-26
GB8608404D0 (en) 1986-05-14
AU5569686A (en) 1986-10-16
GB8509143D0 (en) 1985-05-15

Similar Documents

Publication Publication Date Title
US3268260A (en) Mounting boxes and picks for coal-cutting machines
EP0103820B2 (de) Mit Mehrfacheinsatz bestückter Schrämmeissel
EP0193268A1 (de) Mineralschneidmeissel
US4852671A (en) Diamond cutting element
CA1122234A (en) Tools for mineral winning machines
KR20070086512A (ko) 치즐 홀더
RU94015605A (ru) Кольцевая буровая коронка
GB2261893A (en) Mineral cutter tip and pick
EP0198643A2 (de) Mineralschneidmeissel
CA1118459A (en) Process of and an arrangement for mining
US4443038A (en) Mineral cutter tool having water emission deflection surface
DE3566428D1 (en) Method and apparatus for drilling hard material
US4265487A (en) High pressure water jet mining machine
EP0225082A2 (de) Drehbohrmeissel
US3666321A (en) Holder for cutting tip of milling cutter machine
GB2041043A (en) Improvements Relating to Mineral Mining Tools
US4491368A (en) Method for dredging rock with a pick and water jet combination
GB2125850A (en) Cutting mineral faces and the like
US3273940A (en) Mining pick
SU1479643A1 (ru) Исполнительный орган горного комбайна
CA1242463A (en) Multi-insert cutter bit
US2829876A (en) Cusp breaker means for boring type mining machine
GB2182698A (en) Mineral cutter pick
US4394053A (en) Nozzle holder for cutter drum in longwall mining machinery
WO2000060213A3 (en) Water jet assisted drum-type mining system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870805

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BROWN, HENRY MCGAW