EP2233641A3 - Hydraulic control assembly for the screed of a road finisher - Google Patents

Hydraulic control assembly for the screed of a road finisher Download PDF

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Publication number
EP2233641A3
EP2233641A3 EP10002445A EP10002445A EP2233641A3 EP 2233641 A3 EP2233641 A3 EP 2233641A3 EP 10002445 A EP10002445 A EP 10002445A EP 10002445 A EP10002445 A EP 10002445A EP 2233641 A3 EP2233641 A3 EP 2233641A3
Authority
EP
European Patent Office
Prior art keywords
pressure
screed
hydraulic control
actuating cylinder
load
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.)
Granted
Application number
EP10002445A
Other languages
German (de)
French (fr)
Other versions
EP2233641B2 (en
EP2233641B1 (en
EP2233641A2 (en
Inventor
Hermann Christ
Irina Hagen
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.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
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Filing date
Publication date
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Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP2233641A2 publication Critical patent/EP2233641A2/en
Publication of EP2233641A3 publication Critical patent/EP2233641A3/en
Application granted granted Critical
Publication of EP2233641B1 publication Critical patent/EP2233641B1/en
Publication of EP2233641B2 publication Critical patent/EP2233641B2/en
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Hydraulische Steueranordnung zur Ansteuerung eines doppeltwirkenden Betätigungszylinders, welcher kolbenseitig mit einem Straßenfertiger und kolbenstangenseitig mit einer Bohle des Straßenfertigers verbunden ist, mit einem Versorgungsanschluss, einem Tankanschluss und zwei Verbraucheranschlüssen, wobei der Kolben des Betätigungszylinders über die Verbraucheranschlüsse mit einem Belastungsdruck oder einem Entlastungsdruck beaufschlagt wird. Der Belastungsdruck oder Entlastungsdruck ist in Abhängigkeit von einem vorgegebenen Betriebszustand regelbar, wobei die hydraulische Steueranordnung derart ausgebildet ist, dass in einem Betriebszustand "Regelung der Bohlenlast" über ein proportionales Druckregelventil der dem Betätigungszylinder kolbenstangenseitig zugeführte Entlastungsdruck geregelt wird.

Figure imgaf001
Hydraulic control arrangement for controlling a double-acting actuating cylinder, which is connected on the piston side with a paver and piston rod side to a screed of the paver, with a supply port, a tank port and two consumer ports, wherein the piston of the actuating cylinder is acted upon via the load ports with a loading pressure or a relief pressure. The load pressure or relief pressure is controllable in dependence on a predetermined operating state, wherein the hydraulic control arrangement is designed such that in an operating state "control of screed load" via a proportional pressure control valve of the actuating cylinder piston rod side supplied discharge pressure is controlled.
Figure imgaf001
EP10002445.4A 2009-03-09 2010-03-09 Hydraulic control assembly for the screed of a road finisher Active EP2233641B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009012384 2009-03-09
DE102009019839A DE102009019839A1 (en) 2009-03-09 2009-05-04 Hydraulic control arrangement for the screed of a road paver

Publications (4)

Publication Number Publication Date
EP2233641A2 EP2233641A2 (en) 2010-09-29
EP2233641A3 true EP2233641A3 (en) 2012-03-28
EP2233641B1 EP2233641B1 (en) 2013-07-10
EP2233641B2 EP2233641B2 (en) 2017-03-01

Family

ID=42558034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10002445.4A Active EP2233641B2 (en) 2009-03-09 2010-03-09 Hydraulic control assembly for the screed of a road finisher

Country Status (4)

Country Link
US (1) US9267248B2 (en)
EP (1) EP2233641B2 (en)
CN (1) CN101831860B (en)
DE (1) DE102009019839A1 (en)

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* Cited by examiner, † Cited by third party
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CN102071631B (en) * 2010-12-03 2012-02-01 成都市新筑路桥机械股份有限公司 Automatic stuck material process control system of paver scraping board and control method thereof
US8979425B2 (en) 2012-10-30 2015-03-17 Caterpillar Paving Products Inc. Screed extender speed control
PL2813619T3 (en) * 2013-06-11 2018-10-31 Joseph Vögele AG Screed for a road finisher
DE102015006250B4 (en) * 2014-05-20 2021-03-25 Bomag Gmbh Screed unit for a paver finisher and paver with such a screed unit
US9388537B2 (en) * 2014-06-09 2016-07-12 Wirtgen Gmbh Swing over steering
DE102017002225A1 (en) 2016-03-18 2017-09-21 Bomag Gmbh Road paver with control unit for determining the weight and / or the center of gravity and / or the width of the screed and method
DE102016008253A1 (en) * 2016-07-08 2018-01-11 Dynapac Gmbh Road paver and method of making a pavement
CN107366648B (en) * 2017-09-11 2023-08-29 徐工集团工程机械股份有限公司 Hydraulic control system of paver screed
US10422086B2 (en) * 2017-11-13 2019-09-24 Caterpillar Paving Products Inc. Screed control system
CN109869377A (en) * 2017-12-01 2019-06-11 中国飞机强度研究所 A kind of controllable uninstalling system
CN111601929B (en) * 2018-01-03 2022-04-19 沃尔沃建筑设备公司 Paver and method for height calibration of a screed of a paver
US10156049B1 (en) * 2018-08-27 2018-12-18 Stuart Anthony Frost Modular screed plate assembly and method of assembling a screed plate

Citations (4)

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Publication number Priority date Publication date Assignee Title
FR2666104A1 (en) * 1990-08-27 1992-02-28 Cochery Bourdin Chausse Method and device for spreading a layer of mix (coating layer) on a roadway and surface finishing machine equipped with such a device
JP2002285513A (en) * 2001-03-22 2002-10-03 Shin Caterpillar Mitsubishi Ltd Screed assisting device in paving machine
JP2006161421A (en) * 2004-12-07 2006-06-22 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Back pressure changing mechanism of screed lift cylinder for road paving machine
JP2006161290A (en) * 2004-12-02 2006-06-22 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Screed holding mechanism of paving equipment

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DE9406683U1 (en) * 1994-04-21 1994-06-30 Joseph Vögele AG, 68163 Mannheim Paver
JPH10266274A (en) * 1997-03-27 1998-10-06 Hitachi Constr Mach Co Ltd Hydraulic circuit device of construction machine
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US6749364B1 (en) † 1999-05-19 2004-06-15 Blaw-Knox Construction Equipment Corporation Temperature sensing for controlling paving and compaction operations
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JP3846776B2 (en) 2001-02-06 2006-11-15 新キャタピラー三菱株式会社 Hydraulic control circuit of boom cylinder in work machine
DE10155507B4 (en) 2001-11-13 2005-10-06 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Finisher for the bottom-side installation of layers for roads od. Like.
DE10311156B3 (en) 2003-03-14 2004-12-02 Sauer-Danfoss Aps Vehicle with an attachment
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666104A1 (en) * 1990-08-27 1992-02-28 Cochery Bourdin Chausse Method and device for spreading a layer of mix (coating layer) on a roadway and surface finishing machine equipped with such a device
JP2002285513A (en) * 2001-03-22 2002-10-03 Shin Caterpillar Mitsubishi Ltd Screed assisting device in paving machine
JP2006161290A (en) * 2004-12-02 2006-06-22 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Screed holding mechanism of paving equipment
JP2006161421A (en) * 2004-12-07 2006-06-22 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Back pressure changing mechanism of screed lift cylinder for road paving machine

Also Published As

Publication number Publication date
DE102009019839A1 (en) 2010-09-16
CN101831860A (en) 2010-09-15
EP2233641B2 (en) 2017-03-01
EP2233641B1 (en) 2013-07-10
EP2233641A2 (en) 2010-09-29
CN101831860B (en) 2013-08-28
US9267248B2 (en) 2016-02-23
US20100284742A1 (en) 2010-11-11

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