EP0943783A2 - Boulon de fixation pour un outil de coupe cylindrique - Google Patents

Boulon de fixation pour un outil de coupe cylindrique Download PDF

Info

Publication number
EP0943783A2
EP0943783A2 EP99104692A EP99104692A EP0943783A2 EP 0943783 A2 EP0943783 A2 EP 0943783A2 EP 99104692 A EP99104692 A EP 99104692A EP 99104692 A EP99104692 A EP 99104692A EP 0943783 A2 EP0943783 A2 EP 0943783A2
Authority
EP
European Patent Office
Prior art keywords
cutting body
body according
cutting
bore
bolt
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Withdrawn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
EP99104692A
Other languages
German (de)
English (en)
Other versions
EP0943783A3 (fr
Inventor
Wolfgang Wald
Martina Stuckardt
Ernst Heiderich
Reinhold Walter
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 Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
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 Longyear GmbH and Co KG Hartmetallwerkzeugfabrik, Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik filed Critical Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
Publication of EP0943783A2 publication Critical patent/EP0943783A2/fr
Publication of EP0943783A3 publication Critical patent/EP0943783A3/fr
Withdrawn legal-status Critical Current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
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • 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
    • 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
    • E21C35/191—Means for fixing picks or holders for fixing holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1932—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with means to fasten tool seat to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/227—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool seat to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder

Definitions

  • the invention relates to a roller-shaped cutting body, especially for a cutting machine or road milling machine, according to the preamble of claim 1.
  • Such cutting bodies have on their outer surface in usually a large number arranged in uniform division Base body that, for example, a broaching auger or form a clearing spiral.
  • Base body that, for example, a broaching auger or form a clearing spiral.
  • every body is a chisel holder with a replaceable chisel connected or it is e.g. a suitable one Chisel directly without a chisel holder as an intermediate element used.
  • a generic cutting body is from DE 43 22 402 C 2 known, in which the chisel holder with a plug-in approach designated shaft in a socket of the Basic body introduced and in the basic body with an in this screwed, over a hexagonal Tool holder actuable grub screw, which in a engages associated recess of the shaft of the chisel holder, is secured against being pulled out.
  • This securing has the disadvantage that the internal thread of the extending through the base body and the hexagon socket of the grub screw serving as tool holder, especially in the case of large amounts of dust Cutting operation of the cutting body, susceptible to contamination is so that the fuse can be removed for replacement of the bit holder is difficult.
  • the invention is therefore concerned with the problem of a to create generic cutting body, its securing simply built for the one or the chisel holder or the like, not susceptible to pollution and accordingly Needs is easy to solve.
  • this problem is caused by a cutting body solved with the features of claim 1.
  • the safety bolt is not a grub screw trained and according to the invention in the bore in the base body is held without threading or locking soiling-prone threads in the base body and with it the danger that this, with foreign bodies added, loosening the fuse and replacing the Chisel holder complicate.
  • Fig. 1 shows a base body 1 whose underside is concave is arched in a circular arc and thus the dashed adapts indicated outer surface 2 of the cutting body which the base body 1, for example, by a welded connection is attached.
  • the basic body 1 has one Plug-in receptacle 3, into which a bit holder 4 molded shaft 5 is inserted.
  • the chisel holder 4 includes a chisel receptacle 6, which the shaft part 7 of a chisel 8.
  • On the bit head 9 facing Side of the chisel holder 6 is a contact surface 10 trained on which the chisel 8 with a collar 11th crashes.
  • the chisel 8 is against being pulled out in the direction its axis 12 secured by a latch 13.
  • a through hole extends through the base body 1 14, the inclusion of a safety bolt 15 serves.
  • the shaft 5 of the bit holder 4 has one of the bore 14 in the base body 1 associated recess 16, which at the illustrated embodiment as a laterally open, all-round Ring groove is formed.
  • the securing bolt 15 by the shaft 5 of the bit holder 4 at its recess 16 reaches behind in areas that the chisel holder 4 releases from the base body 1.
  • the embodiment of the recess 16 is favorable as a completely circumferential ring groove.
  • the bit holder 4 is then thereby against Twist ensured that he was dealing with a nasal Area 17 on an alignment surface 18 of the base body 1 supports.
  • the bore 14 extends under a pointed Angle ⁇ to the longitudinal axis 19 of the bit holder 4.
  • the fuse is formed as a clamp, the bolt 15 in the Bore 14 is held by an interference fit.
  • the bore is completely smooth on the inside can be so that no dirt particles on their walls stick.
  • the backup can also be used as Detent, for example in the form of a bayonet lock, be trained.
  • the securing bolt 15 shown in FIG. 3 has one the insertion into the bore 14 facilitates conical Front part 20 and a rear part 21 with a cylindrical Lateral surface on.
  • the outer surface partially elastically deformable, the elastic deformable area in the undeformed state an oversize opposite the bore 14, which causes the clamping.
  • the sleeve 22 can be replaced be designed, for example, under easy expansion is pushed over the bolt 15.
  • the bolt core in the area of the sleeve 22 can be a have reduced diameter, so that the upper and Form lower contact surfaces that prevent the Prevent sleeve 22 when it is pushed onto the bolt 15.
  • an interchangeable sleeve 22 can be replaced when worn without the entire locking bolt 15 must be replaced. Is too it is possible to insert the sleeve 22 through a sleeve of larger outside diameter to replace if in the operation of the Cutting body play between the bore 14 or the Recess 16 of the chisel holder 4 and the securing bolt 15 should have trained.
  • the safety bolt 15 shown has on its rear When installed, end the rear mouth opening 23 of the bore 14 covering head 24. Thereby there is a risk of contamination entering the Hole 14 further reduced.
  • the safety bolt 15 during assembly until it stops in the Bore 14 are pressed in without the risk of to drive it through the bore 14.
  • the locking pin 15 is from the opposite Mouth opening 26 with a suitable Tool driven out of the bore 14.
  • the bolt head 24 can be used to release the fuse.
  • it can have recesses into which engage a suitable tool and the safety bolt 15 can pull out.

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)
  • Percussive Tools And Related Accessories (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Road Repair (AREA)
EP99104692A 1998-03-19 1999-03-10 Boulon de fixation pour un outil de coupe cylindrique Withdrawn EP0943783A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29805007U DE29805007U1 (de) 1998-03-19 1998-03-19 Walzenförmiger Schneidkörper
DE29805007U 1998-03-19

Publications (2)

Publication Number Publication Date
EP0943783A2 true EP0943783A2 (fr) 1999-09-22
EP0943783A3 EP0943783A3 (fr) 2003-10-01

Family

ID=8054453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104692A Withdrawn EP0943783A3 (fr) 1998-03-19 1999-03-10 Boulon de fixation pour un outil de coupe cylindrique

Country Status (4)

Country Link
US (1) US6183170B1 (fr)
EP (1) EP0943783A3 (fr)
DE (1) DE29805007U1 (fr)
PL (1) PL332030A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044369C2 (de) * 2000-09-08 2003-03-27 Michael Steinbrecher Schnellwechselhaltersystem für Werkzeuge auf Walzen
US6481803B2 (en) * 2001-01-16 2002-11-19 Kennametal Inc. Universal bit holder block connection surface
US7108212B2 (en) * 2003-11-11 2006-09-19 Keystone Engineering & Manufacturing Corporation Angular tool and holding block
DE102004057302B4 (de) * 2004-11-26 2011-01-13 Wirtgen Gmbh Meißelhalter
US7434890B2 (en) * 2005-03-23 2008-10-14 Boart Longyear Inc. Vibratory milling machine having linear reciprocating motion
US8079647B2 (en) * 2005-03-23 2011-12-20 Longyear Tm, Inc. Vibratory milling machine having linear reciprocating motion
US7338134B2 (en) * 2005-11-23 2008-03-04 Keystone Engineering & Manufacturing Corp. Flighting and tool holder
USD681069S1 (en) * 2012-07-31 2013-04-30 Caterpillar Paving Products Inc. Mounting block for paving apparatus
USD680560S1 (en) * 2012-07-31 2013-04-23 Caterpillar Paving Products Inc. Deflector for paving apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US530793A (en) * 1894-12-11 Matthew odgers
US3092374A (en) * 1958-02-06 1963-06-04 Cincinnati Mine Machinery Co Resilient engagement device
US2965365A (en) * 1958-04-14 1960-12-20 Cincinnati Mine Machinery Co Bit and resilient holding means therefor
US3285668A (en) * 1963-11-20 1966-11-15 Galion Jeffrey Mfg Co Cutter bit holder
US3519309A (en) * 1965-08-12 1970-07-07 Kennametal Inc Rotary cone bit retained by captive keeper ring
US3397012A (en) * 1966-12-19 1968-08-13 Cincinnati Mine Machinery Co Cutter bits and means for mounting them
US3575467A (en) * 1969-03-11 1971-04-20 Carmet Co Cutter bit and block
US4057294A (en) * 1975-08-01 1977-11-08 The Cincinnati Mine Machinery Company Wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like
US4337980A (en) * 1979-05-21 1982-07-06 The Cincinnati Mine Machinery Company Wedge arrangements and related means for mounting means, base members, and bits, and combinations thereof, for mining, road working, or earth moving machinery
US4915454A (en) * 1986-11-04 1990-04-10 Southern Philip W Mining bit and holder
DE3927285A1 (de) * 1989-08-18 1991-02-21 Boart Hwf Gmbh & Co Hobel- und schraemmeissel fuer gewinnungsmaschinen zum abbau von lagerstaetten
DE4322402C2 (de) * 1993-07-06 1996-06-20 Wirtgen Gmbh Schneidkörper für eine Schrämmaschine
DE29803944U1 (de) * 1998-03-06 1998-04-30 DBT Deutsche Bergbau-Technik GmbH, 44534 Lünen Meißelsicherung für einen Hobelmeißel

Also Published As

Publication number Publication date
EP0943783A3 (fr) 2003-10-01
PL332030A1 (en) 1999-09-27
US6183170B1 (en) 2001-02-06
DE29805007U1 (de) 1998-05-20

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