EP1793041A1 - Lame collectioneuse pour rouleaux de fraisage d'un engin de construction - Google Patents

Lame collectioneuse pour rouleaux de fraisage d'un engin de construction Download PDF

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Publication number
EP1793041A1
EP1793041A1 EP06124386A EP06124386A EP1793041A1 EP 1793041 A1 EP1793041 A1 EP 1793041A1 EP 06124386 A EP06124386 A EP 06124386A EP 06124386 A EP06124386 A EP 06124386A EP 1793041 A1 EP1793041 A1 EP 1793041A1
Authority
EP
European Patent Office
Prior art keywords
scraper blade
centering means
groove
guides
scraper
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
EP06124386A
Other languages
German (de)
English (en)
Other versions
EP1793041B1 (fr
Inventor
Heiko Böhme
Herbert Ley
Urban Kurscheid
Günter TEWES
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.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
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 Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1793041A1 publication Critical patent/EP1793041A1/fr
Application granted granted Critical
Publication of EP1793041B1 publication Critical patent/EP1793041B1/fr
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
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices 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
    • E01C23/085—Devices 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
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • the invention relates to a stripping device for a milling machine mounted in a construction machine according to the preamble of claim 1.
  • Such a stripping device is for example from the DE 102 47 579 known.
  • the stripping device described there for milling rollers of a construction machine, in particular a road milling machine, in which milling rollers of different milling width can be used within a maximum milling width consists of a scraper blade which can slide over the milled by the milling or milled off surface.
  • the scraper blade is needed to scrape off milled material that accumulates in the direction of travel behind the milling drum, from the milled surface to leave a largely clean milled surface.
  • the material collected behind the milling drum is fed back to the milling drum until it is picked up by a transport device and transported away.
  • the invention is therefore based on the object, a stripping device of the type mentioned in such a way that tilting of the scraper blade is prevented.
  • the invention provides in an advantageous manner that act on the upper end of the scraper second centering, which limit the lateral displacement of the scraper blade at the upper end in a lateral movement of the scraper blade in the guides.
  • the spaced apart from the first centering on the scraper blade second centering limit the pivotal movement of the scraper blade when hitting the scraper blade on a one-sided obstacle.
  • the limitation of the lateral displacement of the scraper blade effectively prevents tilting of the scraper blade so that the mobility of the scraper blade is maintained even if the scraper blade can not be lowered centrally into an existing scraper blade.
  • the second centering means have a groove extending parallel to the guides and an engagement element cooperating with the groove.
  • the interaction between the engagement element and the groove allows to comply with a predetermined game, wherein the width of the groove in the course of its length, in particular in the direction of the lower end, can be extended.
  • the second centering means consist, for example, of an engagement element protruding from the scraper blade, which engages in the groove extending parallel to the lateral guides.
  • the clearance between the groove and the engagement member may increase toward the lower end of the groove to allow for increased lateral play in the lowered position of the scraper blade in accordance with the increased lateral play of the first centering means so that cornering-free cornering is possible during operation ,
  • the game between the groove and the engagement member to the lower end of the groove can increase continuously.
  • the engagement element engage in the lowered working position of the scraper blade in an extended groove.
  • the second centering means may be arranged in the parallel to the guides extending central axis of the scraper blade or at a parallel distance therefrom.
  • the second centering means consist of a plurality of elements, wherein an element of the second centering means is preferably arranged on a protruding from the Abstreifschild projection.
  • the second centering means may comprise a sliding block fixed to the upper end of the scraper blade as an engagement element guided in the groove.
  • the groove is located in a housing part of the drum box of the milling drum or in a machine element connected to the machine frame, e.g. a portal.
  • the measured in the direction of the lateral guide distance of the arranged on the scraper blade element of the second centering of the first centering means is more than 50% of the length of the scraper blade in Height direction up to a maximum of the length of the scraper blade less 50% of the maximum milling depth of the milling drum.
  • the first centering means consist of the clearance between the scraper blade and the lateral guides reducing cams spaced from the lower edge of the scraper blade.
  • the distance of the cam arranged on the scraper blade from the lower edge of the scraper blade is smaller than the maximum milling depth of the milling drum.
  • the sliding block has as engagement element rounded with the groove flanks of the groove cooperating side surfaces.
  • the sliding block as an engagement element has on its upper side with the groove flanks of the groove in the narrowing area cooperating inclined guide surfaces.
  • the second centering means are preferably in the engaged position with less movement clearance to a lesser movement play as the first centering.
  • the second centering means Upon lifting of the scraper blade, the second centering means preferably first reach the engaged position with the less movement play.
  • Fig. 1 shows the application of the invention in a front-loading road milling machine.
  • the self-propelled road milling machine 1 is equipped in Fig. 1 with wheels, but can of course be worn by track drives, as shown in Fig. 2.
  • the milling drum 2 is arranged in the embodiment of the road milling machine 1 according to FIG. 1 at the rear end of the machine and surrounded by a roller box 4.
  • a stripping device 6 with a portal 15 and a Koiben-cylinder unit 25 is arranged, which has a height-adjustable scraper blade 10 which covers the milling width of the milling drum 2 and, for example, in the attached to the machine frame 5 portal 15th with the help of the piston-cylinder unit 25 is guided adjustable in height.
  • the scraper blade 10 is guided in lateral guides 12 of the machine frame 5, wherein it should be clarified that the machine element designated by 5 in FIG. 2 can also be the roller box 4 fastened to a machine frame.
  • the guides 12 extend in the direction of travel orthogonal to the axis of rotation of the milling drum. 2
  • the piston-cylinder unit 25 engages on the one hand on the upper edge of the portal 15 and on the other hand on a reinforced strip in the vicinity of the lower edge 17 of the scraper blade 10. As is apparent from Fig. 3, the piston-cylinder unit 25 is preferably in the central axis 30 of Scraper blade 10.
  • the scraper blade 10 has in its lower third first centering means 14, which, as best seen in Fig. 4, consist of laterally projecting cams 18 which provide in the event of their engagement in the lateral guides 12 for a reduced lateral play of the scraper blade.
  • the distance of the cams 18 from the lower edge of the scraper blade 10 is smaller than the maximum milling depth of the milling drum 2. This means that in the case of the maximum milling depth, the lateral cams 18 are not in engagement with the guides 12, so that for cornering bigger game is released. It is understood that the distance of the cams 18 from the lower edge 17 of the scraper blade can be adapted to the practical requirements and, consequently, a smaller distance, e.g. 50 to 90% of the maximum milling depth can have.
  • the working position of the scraper blade is adapted to the cutting depth of the milling drum at each milling depth, so that the lower edge of the scraper blade scrapes over the milled surface.
  • the second centering means 20 consist of a protruding from the scraper blade 10 engaging member 24 which engages in a parallel to the guides 12 extending in the portal 15 arranged groove 22.
  • the engagement element 24 consists of a sliding block, as shown in FIGS. 8 or 9 is shown in section and is attached to a projection 34 of the scraper blade 10 on the milling drum 2 side facing.
  • the shape of the groove 22 is best seen in Fig. 6 can be removed. At the lower end of the groove 22 an extension is provided, so that the second centering 20 allow in a lowered position of the scraper blade 10 for cornering an extended lateral play.
  • FIG. 9 shows a second exemplary embodiment of the sliding block which has circular guide surfaces rounded in its core region on the underside.
  • the second centering means 20 in the engagement position with the smaller movement play, so in the region of the narrow groove to allow a lesser movement play as the first centering 14th
  • the second centering means 20 first reach the engaged position with the less movement play.
  • the described stripping device 6 is equally applicable to a rear-loading road milling machine.
  • Embodiments of the DE 102 47 579 be removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Milling Processes (AREA)
EP06124386A 2005-12-05 2006-11-20 Dispositif racleur pour rouleaux de fraisage d'un engin de construction Active EP1793041B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005058102A DE102005058102B3 (de) 2005-12-05 2005-12-05 Abstreifeinrichtung für Fräswalzen einer Baumaschine

Publications (2)

Publication Number Publication Date
EP1793041A1 true EP1793041A1 (fr) 2007-06-06
EP1793041B1 EP1793041B1 (fr) 2010-01-06

Family

ID=37715787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124386A Active EP1793041B1 (fr) 2005-12-05 2006-11-20 Dispositif racleur pour rouleaux de fraisage d'un engin de construction

Country Status (4)

Country Link
US (1) US7438364B2 (fr)
EP (1) EP1793041B1 (fr)
CN (1) CN100554600C (fr)
DE (2) DE102005058102B3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013131726A1 (fr) * 2012-03-08 2013-09-12 Wirtgen Gmbh Fraiseuse routière automotrice destinée à usiner des surfaces routières, et procédé d'usinage de surfaces routières
US9328468B2 (en) 2012-03-08 2016-05-03 Wirtgen Gmbh Self-propelled road milling machine with adjustable width scraper blade
US10024005B2 (en) 2014-12-30 2018-07-17 Wirtgen Gmbh Self-propelled road milling machine for working road surfaces, as well as method for working road surfaces with a road milling machine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006062129B4 (de) * 2006-12-22 2010-08-05 Wirtgen Gmbh Straßenbaumaschine sowie Verfahren zur Messung der Frästiefe
DE102007038677B4 (de) 2007-08-15 2009-09-17 Wirtgen Gmbh Abstreifeinrichtung, sowie Baumaschine
DE102013002639C5 (de) * 2013-02-15 2022-06-30 Bomag Gmbh Bodenfräsmaschine, insbesondere Straßenfräse und Verfahren zur Bewegung eines Sicherheitsbügels einer solchen Bodenfräsmaschine
DE102013208645B4 (de) * 2013-05-10 2018-01-11 Wirtgen Gmbh Vorrichtung, insbesondere Kleinfräse, zum Bearbeiten von Straßenoberflächen
DE102017116757B4 (de) * 2017-07-25 2020-11-12 Betek Gmbh & Co. Kg Abstreifleiste für ein Abstreifschild einer Straßenfräsmaschine
US10385536B2 (en) 2017-11-13 2019-08-20 Caterpillar Paving Products Inc. System and method for controlling movement of moldboard
US10612196B2 (en) 2017-12-19 2020-04-07 Caterpillar Paving Products Inc. Moldboard support structure for a milling machine
US11174604B1 (en) 2020-07-14 2021-11-16 Caterpillar Paving Products Inc. Milling systems and methods for a milling machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528038A1 (de) * 1985-08-05 1987-02-12 Reinhard Wirtgen Maschine zum abfraesen von strassenbelaegen
EP0685598A1 (fr) * 1994-05-31 1995-12-06 Ingersoll-Rand Company Mécanismus d'accès pour tambour
EP0752501A1 (fr) * 1995-07-04 1997-01-08 Ohkita Engineering Co., Ltd. Excavateur de route à élément de coupe cylindrique
DE10247579B3 (de) * 2002-10-11 2004-04-15 Wirtgen Gmbh Abstreifeinrichtung für Fräswalzen einer Baumaschine, sowie Verfahren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325580A (en) * 1979-05-07 1982-04-20 Cmi Corporation Roadway planing apparatus
DE10202536A1 (de) * 2002-01-24 2003-08-21 Juergen Schenk Fräseinrichtung für Boden, Fels, Aushub oder anderes Material
CN1497102A (zh) * 2002-10-11 2004-05-19 沃特根公司 用于建筑机械压轧辊的剥离装置和该建筑机械以及方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528038A1 (de) * 1985-08-05 1987-02-12 Reinhard Wirtgen Maschine zum abfraesen von strassenbelaegen
EP0685598A1 (fr) * 1994-05-31 1995-12-06 Ingersoll-Rand Company Mécanismus d'accès pour tambour
EP0752501A1 (fr) * 1995-07-04 1997-01-08 Ohkita Engineering Co., Ltd. Excavateur de route à élément de coupe cylindrique
DE10247579B3 (de) * 2002-10-11 2004-04-15 Wirtgen Gmbh Abstreifeinrichtung für Fräswalzen einer Baumaschine, sowie Verfahren

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013131726A1 (fr) * 2012-03-08 2013-09-12 Wirtgen Gmbh Fraiseuse routière automotrice destinée à usiner des surfaces routières, et procédé d'usinage de surfaces routières
US9328468B2 (en) 2012-03-08 2016-05-03 Wirtgen Gmbh Self-propelled road milling machine with adjustable width scraper blade
US9416502B2 (en) 2012-03-08 2016-08-16 Wirtgen Gmbh Self-propelled road milling machine for milling road surfaces, in particular large-scale milling machine, and method for milling road surfaces
US10450709B2 (en) 2012-03-08 2019-10-22 Wirtgen Gmbh Self-propelled road milling machine for milling road surfaces, in particular large-scale milling machine, and method for milling road surfaces
US10024005B2 (en) 2014-12-30 2018-07-17 Wirtgen Gmbh Self-propelled road milling machine for working road surfaces, as well as method for working road surfaces with a road milling machine

Also Published As

Publication number Publication date
EP1793041B1 (fr) 2010-01-06
DE502006005832D1 (de) 2010-02-25
DE102005058102B3 (de) 2007-03-01
CN1978789A (zh) 2007-06-13
US20070127986A1 (en) 2007-06-07
US7438364B2 (en) 2008-10-21
CN100554600C (zh) 2009-10-28

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