EP1776506B1 - Sandwich-Räumleiste mit Hartmetallkern - Google Patents

Sandwich-Räumleiste mit Hartmetallkern Download PDF

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Publication number
EP1776506B1
EP1776506B1 EP05752722A EP05752722A EP1776506B1 EP 1776506 B1 EP1776506 B1 EP 1776506B1 EP 05752722 A EP05752722 A EP 05752722A EP 05752722 A EP05752722 A EP 05752722A EP 1776506 B1 EP1776506 B1 EP 1776506B1
Authority
EP
European Patent Office
Prior art keywords
steel
sandwich
hard metal
scraper bar
metal core
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
EP05752722A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1776506A1 (de
Inventor
Roland KÜPER
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.)
Gummi Kueper GmbH and Co KG
Original Assignee
Gummi Kueper GmbH and 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 Gummi Kueper GmbH and Co KG filed Critical Gummi Kueper GmbH and Co KG
Priority to PL05752722T priority Critical patent/PL1776506T3/pl
Publication of EP1776506A1 publication Critical patent/EP1776506A1/de
Application granted granted Critical
Publication of EP1776506B1 publication Critical patent/EP1776506B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
    • E01H5/061—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades by scraper blades

Definitions

  • the present invention relates to a sandwich scraper blade for the plow blade of a snow plow, which is provided above with a steel mounting neck, on which a rubber body is vulcanized with at least one embedded hard material body.
  • a sandwich scraper is out of the DE 34 04 030 C1 known.
  • the hard material bodies of the aforementioned sandwich scraper are rod-shaped or plate-shaped molded bodies, which preferably consist of sintered or cast corundum. Such sandwich scrapers have proven to be excellent.
  • a scraper for the shield of a construction machine or for a snow plow which has a steel scraper, on the underside of a plurality of steel segments are screwed.
  • the steel segments are preferably forged from a tool steel having a higher wear resistance than the steel of the scraper. In the area of the wear surface facing the ground, V-shaped cemented carbide cores are inserted into the steel segments.
  • the present invention seeks to provide a scraper, which is exposed to low wear, has a correspondingly long service life, does not damage the road surface and is also suitable for blackout of the road.
  • the asphalt surface of sandwich scraper bars with hard metal core according to the invention is not appreciably damaged.
  • the hard metal core must be firmly anchored in the steel shell. This can be non-positively - such as by shrinking - and / or cohesively - such as by soldering - done.
  • a further advantage of the use according to the invention of a steel jacket is better heat distribution.
  • the rubbing of the carbide core on the asphalt produces a lot of heat, which is transferred from the steel to the rubber via large surface areas.
  • local overheating of the rubber is avoided, resulting in significantly less wear than when directly embedding hard metal cores in the rubber.
  • Carbides are comparatively expensive materials.
  • the cost of the sandwich scraper can be significantly reduced by using carbide cores made from recycled carbide. This is processed waste material from worn tools of machining.
  • the steel shell or the hard metal core is formed as a rod-shaped or plate-shaped molded body, which extends at best over the entire wear height of the sandwich scraper.
  • Carbide core and steel jacket should together occupy a high surface area of the wear surface of the rubber body. Their area share should amount to at least 20%.
  • the sandwich scraper bar is particularly stiff and removes even stuck and verharschten snow residue from the asphalt surface.
  • the rubber body of the sandwich scraper is covered on both sides with steel plates, it is recommended for reasons of weight, to dispense with a separate mounting neck and instead to use at least one of the two steel plates at the same time as a mounting neck.
  • the wear surface is composed in cross section of a seven-layer sandwich.
  • the individual layers are - contrary to the direction of advance of the plow blade - the steel of the rear steel plate, the rubber of the rubber body, the steel of the steel shell, the hard metal of the hard metal core, the steel of the steel shell, the rubber of the rubber body and the steel of the front steel plate.
  • the sandwich is therefore symmetrical and effectively protects the brittle core against impacts.
  • the sandwich scraper 0 shows a first embodiment of the sandwich scraper strip 0 according to the invention in cross-section, ie substantially transversely to the direction of travel or to the feed direction V.
  • the sandwich scraper 0 comprises a steel attachment collar 1, via which it is attached to a non-illustrated Dozer blade of a snow plow, also not shown, can be attached.
  • the attachment is usually by Screw connections or by means of clamping claws; Further joining techniques are conceivable.
  • the sandwich scraper 0 comprises a rubber body 4, which is vulcanized to the mounting neck 1. Rubber has proven itself as a material, but it is nevertheless possible to substitute it with a suitable plastic.
  • a steel shell 5 is embedded, which surrounds one or more hard metal cores 6.
  • Both the steel jacket 5 and the hard metal cores 6 can extend continuously over the entire length of the sandwich scraper bar 0. Preferably, however, they are interrupted in sections.
  • the hard metal cores 6 each extend at least over the wear height h of the scraper blade 0.
  • Steel jacket 5 and hard metal core 6 together make up at least one fifth of the wear surface 7 of the rubber body 4.
  • the hard metal cores 6 are preferably made of tungsten carbide, titanium carbide or titanium nitride. These materials can also be used as recyclate.
  • the hard metal cores 6 is either shrunk into the steel shell 5 and / or soldered to it.
  • the steel jacket 5 is, however, vulcanized into the rubber body 4.
  • the sandwich scraper 0 is formed by a five-ply, symmetrical sandwich.
  • the sandwich consists of the materials rubber, steel, carbide, steel, rubber.
  • FIG. 2 shows a further embodiment of the sandwich scraper strip 0 according to the invention according to claim 8 in a cross section Q. It comprises two steel plates 2, 3 which cover the rubber body 4 on its front side or on its rear side.
  • the front steel plate 2 is largely flat, the rear steel plate 3 is cranked.
  • Both steel plates 2,3 are connected by vulcanization with the rubber body 4 and also serve as a fastening neck 1. For this reason, they have in the upper part of holes 8, through which bolts, not shown, are inserted for attachment to the dozer blade.
  • the sandwich scraper blade 0 is constituted by a seven-layer symmetrical sandwich.
  • the sandwich consists of the materials steel, rubber, steel, carbide, steel, rubber, steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Table Equipment (AREA)
  • Earth Drilling (AREA)
  • Laminated Bodies (AREA)
EP05752722A 2004-06-17 2005-05-25 Sandwich-Räumleiste mit Hartmetallkern Active EP1776506B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05752722T PL1776506T3 (pl) 2004-06-17 2005-05-25 Wielowarstwowa listwa zgarniakowa z rdzeniem z twardego metalu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004029165A DE102004029165A1 (de) 2004-06-17 2004-06-17 Sandwich-Räumleiste mit Hartmetallkern
PCT/EP2005/005630 WO2005124031A1 (de) 2004-06-17 2005-05-25 Sandwich-räumleiste mit hartmetallkern

Publications (2)

Publication Number Publication Date
EP1776506A1 EP1776506A1 (de) 2007-04-25
EP1776506B1 true EP1776506B1 (de) 2007-12-19

Family

ID=34970582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05752722A Active EP1776506B1 (de) 2004-06-17 2005-05-25 Sandwich-Räumleiste mit Hartmetallkern

Country Status (9)

Country Link
US (1) US7765726B2 (no)
EP (1) EP1776506B1 (no)
AT (1) ATE381641T1 (no)
CA (1) CA2570517C (no)
DE (2) DE102004029165A1 (no)
ES (1) ES2301019T3 (no)
NO (1) NO338286B1 (no)
PL (1) PL1776506T3 (no)
WO (1) WO2005124031A1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019217217A1 (de) * 2019-11-07 2021-05-12 Zf Friedrichshafen Ag Bewertung von Geräuschen eines Räumschilds

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026519A1 (de) * 2005-06-08 2006-12-14 Gummi Küper GmbH & Co KG Räumleiste für den Räumschild eines Schneepfluges
DE102005040705B4 (de) * 2005-08-27 2021-06-10 Gummi Küper GmbH & Co KG Räumleiste für den Räumschild eines Schneepfluges
DE102006021910A1 (de) 2006-05-11 2007-11-15 Gummi Küper GmbH & Co KG Gewellte Räumleiste
US7698839B1 (en) * 2006-09-18 2010-04-20 Maxi-Lift, Inc. Material conveyor system container
US7631441B2 (en) * 2008-03-10 2009-12-15 Valley Blades Limited Wearing edge attachment system
DE102009051751A1 (de) * 2009-11-03 2011-05-05 Küper GmbH & Co.KG Räumleiste für den Räumschild eines Schneepfluges
IT1397670B1 (it) * 2010-01-22 2013-01-18 Giletta Spa Lama perfezionata per spalare la neve.
KR101330978B1 (ko) * 2011-10-27 2013-11-18 배한준 제설삽 장치
US9290898B2 (en) 2012-02-20 2016-03-22 Ironhawk Industrial Distribution LLC Plow blade damping device and method
US8984778B2 (en) 2013-03-15 2015-03-24 Ironhawk Industrial Distribution LLC Plow blade and method
CN103343521A (zh) * 2013-07-22 2013-10-09 南通普乐工具有限公司 新型扫雪机
US20160032568A1 (en) * 2014-07-29 2016-02-04 Caterpillar Inc. Implement Wear Member
US9562342B2 (en) * 2014-09-05 2017-02-07 Winter Equipment Company Serrated plow blade
US10889948B2 (en) * 2014-09-05 2021-01-12 Winter Equipment Company Plow blade
USD824962S1 (en) 2015-09-08 2018-08-07 Winter Equipment Company Plow blade
DE102015120823A1 (de) 2015-12-01 2017-06-01 Küper Gmbh & Co. Kg Sandwich-Räumleiste
DE102016114457A1 (de) 2016-08-04 2018-02-08 Küper Gmbh & Co. Kg Räumleiste für den Einsatz bei hohen Geschwindigkeiten und langen Räumstrecken
DE102016119769B3 (de) 2016-10-18 2018-03-01 Küper Gmbh & Co. Kg Räumleiste für den Räumschild eines Schneeplugs
US10851508B2 (en) 2017-12-11 2020-12-01 Pro-Tech Manufacturing And Distribution, Inc. Material pusher with floating coupling and modular composite scraping edge
US11401685B2 (en) 2018-04-13 2022-08-02 Caterpillar Inc. Serrated blade assembly using differently configured components
DE102018125674A1 (de) * 2018-10-16 2020-04-16 Küper Gmbh & Co. Kg Räumleiste für den Räumschild eines Schneepflugs

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US2549088A (en) * 1946-09-07 1951-04-17 Harnischfeger Corp Replaceable tooth for rotary earth cutting means
US3529677A (en) * 1968-05-15 1970-09-22 Kennametal Inc Grader blade
US3934654A (en) * 1974-09-06 1976-01-27 Kennametal Inc. Earthworking blade device
US4086966A (en) * 1976-12-20 1978-05-02 Caterpillar Tractor Co. Composite ground engaging tool
US4347677A (en) * 1979-02-05 1982-09-07 Gummi Kuper Gmbh & Co. Kg Snow removal bar for the snow removal plate of a snow plow
DE3347784A1 (de) * 1983-03-31 1985-05-15 Bernhard Dipl.-Ing. 1000 Berlin Leuschner Befestigungsvorrichtung fuer eine raeumleiste an dem raeumschild eines schneepflugs
DE3404030C1 (de) 1984-02-06 1985-07-04 Gummi-Küper GmbH & Co KG, 4630 Bochum Räumleiste für den Räumschild eines Schneepfluges
DE8516577U1 (de) * 1985-06-07 1985-08-01 Schotenröhr, Rudolf, 5860 Iserlohn Räumleiste für Schneepflüge od. dgl.
US4715450A (en) * 1987-02-20 1987-12-29 Kennametal Inc. Grader blade with casting/insert assembly on leading edge
DE8707182U1 (no) * 1987-05-19 1987-08-06 Gummi-Kueper Gmbh & Co Kg, 4630 Bochum, De
FI679U1 (fi) * 1993-01-22 1993-04-23 Pertti Vauhkonen Bett foer en plog
CA2634285C (en) * 1994-08-02 2011-05-24 Komatsu Ltd. Wear-resistant overlay forming method and wear-resistant composite members
USH1642H (en) * 1995-03-20 1997-04-01 The United States Of America As Represented By The Secretary Of The Navy Wear and impact tolerant plow blade
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US6202327B1 (en) * 1999-05-05 2001-03-20 Eimco Llc Ice scraper having non-rotary tools with shielded cutting inserts
US6594923B1 (en) * 1999-11-29 2003-07-22 The Louis Berkman Company Snowplow mount
US6571493B2 (en) * 1999-12-27 2003-06-03 Komatsu Ltd. Cutting edge
US6854527B2 (en) * 2002-04-08 2005-02-15 Kennametal Inc. Fracture resistant carbide snowplow and grader blades

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019217217A1 (de) * 2019-11-07 2021-05-12 Zf Friedrichshafen Ag Bewertung von Geräuschen eines Räumschilds

Also Published As

Publication number Publication date
DE102004029165A1 (de) 2005-12-29
NO20070261L (no) 2007-03-09
DE502005002314D1 (de) 2008-01-31
WO2005124031A1 (de) 2005-12-29
US7765726B2 (en) 2010-08-03
ATE381641T1 (de) 2008-01-15
EP1776506A1 (de) 2007-04-25
CA2570517C (en) 2013-07-30
CA2570517A1 (en) 2005-12-29
US20070193755A1 (en) 2007-08-23
PL1776506T3 (pl) 2008-06-30
NO338286B1 (no) 2016-08-08
ES2301019T3 (es) 2008-06-16

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