EP3545169B1 - Hartmetalleinsatz fuer einen rundschaftmeissel - Google Patents

Hartmetalleinsatz fuer einen rundschaftmeissel Download PDF

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Publication number
EP3545169B1
EP3545169B1 EP17811866.7A EP17811866A EP3545169B1 EP 3545169 B1 EP3545169 B1 EP 3545169B1 EP 17811866 A EP17811866 A EP 17811866A EP 3545169 B1 EP3545169 B1 EP 3545169B1
Authority
EP
European Patent Office
Prior art keywords
hard metal
longitudinal direction
metal insert
ribs
shank
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.)
Active
Application number
EP17811866.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3545169A1 (de
Inventor
Gerd Elfgen
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.)
Krueger Susanne
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3545169A1 publication Critical patent/EP3545169A1/de
Application granted granted Critical
Publication of EP3545169B1 publication Critical patent/EP3545169B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details 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
    • E21C35/18Mining picks; Holders therefor
    • E21C35/183Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088Rotary tools, e.g. milling drums

Definitions

  • the invention relates to a hard metal insert for a round shank chisel on a rotatable roller of a milling machine, with a cylindrical body, a conical tip on the body and a soldering surface arranged transversely to a longitudinal direction of the body on a foot of the body, and with radially from a lateral surface of the body protruding ribs extending in the longitudinal direction, wherein a height of the ribs above the body increases in the longitudinal direction towards the foot and a radially outwardly facing land surface of the ribs becomes steadily narrower in the longitudinal direction towards the foot.
  • various hard metal inserts are known, which are arranged on a lower, conically widening section, with radially outwardly protruding and distributed over the circumference, nipple-shaped guide elements.
  • the guide elements have different geometric shapes such as a triangular, trapezoidal or rounded rectangular shape in cross section.
  • the guide elements can also be arranged on a separate guide element ring through which the rest of the hard metal insert extends. The connection of the guide elements with the rest of the hard metal insert or the guide element ring, however, is not sufficiently organic, so that breaks in the guide elements cannot be ruled out.
  • the height of the ribs of a hard metal insert according to the invention is preferably constant in the longitudinal direction starting from the tip to the foot in a first area of the body and increases in a subsequent second area up to the soldering surface, the second area two to four times longer than the first area is.
  • Such a hard metal insert penetrates the tough material more easily.
  • a round shank bit according to the invention has a hard metal insert according to the invention.
  • Such a Round shank bit is also characterized by the aforementioned advantages of the hard metal insert according to the invention.
  • a round shank bit according to the invention preferably has a clamping sleeve made of spring steel that encompasses the shank.
  • the clamping sleeve on the one hand holds the pick axially and on the other hand allows the pick to rotate about its longitudinal axis in the chisel holder.
  • ribs 8 protrude radially to the longitudinal direction 4, which ribs extend in the longitudinal direction 4 up to the soldering surface 5.
  • a height 9 of the ribs 8 increases, while a radially outwardly facing web surface 10 of the ribs 8 becomes steadily narrower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
  • Milling Processes (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP17811866.7A 2016-11-24 2017-11-22 Hartmetalleinsatz fuer einen rundschaftmeissel Active EP3545169B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016122693.9A DE102016122693A1 (de) 2016-11-24 2016-11-24 Hartmetalleinsatz für einen Rundschaftmeißel
PCT/EP2017/080013 WO2018095955A1 (de) 2016-11-24 2017-11-22 HARTMETALLEINSATZ FÜR EINEN RUNDSCHAFTMEIßEL

Publications (2)

Publication Number Publication Date
EP3545169A1 EP3545169A1 (de) 2019-10-02
EP3545169B1 true EP3545169B1 (de) 2021-01-27

Family

ID=60654925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17811866.7A Active EP3545169B1 (de) 2016-11-24 2017-11-22 Hartmetalleinsatz fuer einen rundschaftmeissel

Country Status (4)

Country Link
EP (1) EP3545169B1 (zh)
CN (1) CN110249110B (zh)
DE (1) DE102016122693A1 (zh)
WO (1) WO2018095955A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11098584B2 (en) * 2018-11-15 2021-08-24 Caterpillar Inc. Carbide cutter bit with ribbed sides and conical tip

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131725A (en) 1990-09-04 1992-07-21 Kennametal Inc. Rotatable cutting tool having an insert with flanges
US5324098A (en) * 1992-12-17 1994-06-28 Kennametal Inc. Cutting tool having hard tip with lobes
US5551760A (en) 1993-09-02 1996-09-03 The Sollami Company Tungsten carbide insert for a cutting tool
US5484191A (en) * 1993-09-02 1996-01-16 The Sollami Company Insert for tungsten carbide tool
US6019434A (en) * 1997-10-07 2000-02-01 Fansteel Inc. Point attack bit
CN2871793Y (zh) * 2005-09-14 2007-02-21 张玉英 双刃尖钻头
DE102007007156A1 (de) * 2007-02-09 2008-08-14 Gerd Elfgen Hartmetallspitze für einen Rundschaftmeißel
DE102008045825B3 (de) * 2008-09-05 2010-05-27 Wirtgen Gmbh Meißelhalter für eine Schrämmaschine, Straßenfräse, Suface-Miner oder dergleichen
US20110068616A1 (en) * 2009-09-21 2011-03-24 Kennametal Inc. Rotatable cutting tool with hard cutting member
TR201819550T4 (tr) * 2010-08-04 2019-01-21 Ceram Gmbh Oyma Ve Oluk Açmaya Yönelik Kesme Aleti
US8449041B2 (en) * 2010-10-27 2013-05-28 Sandvik Intellectual Property Ab Grading pick with extended fins
CA2757795A1 (en) * 2011-01-03 2012-07-03 Sandvik Intellectual Property Ab Polygon-shaped carbide tool pick
DE102014001921A1 (de) * 2013-02-22 2014-08-28 Bomag Gmbh Fräswalze mit einer, insbesondere austauschbaren, Materialleiteinrichtung und Materialleiteinrichtung für eine Fräswalze
DE102015002712A1 (de) * 2014-03-10 2015-09-10 Bomag Gmbh Rundschaftmeißelanordnung, Sicherungsring für eine Rundschaftmeißelanordnung, Set mit einer Spannhülse und einem Sicherungsring und Verfahren zum Sichern eines Rundschaftmeißels in einem Meißelhalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110249110B (zh) 2021-03-23
WO2018095955A1 (de) 2018-05-31
CN110249110A (zh) 2019-09-17
DE102016122693A1 (de) 2018-05-24
EP3545169A1 (de) 2019-10-02

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