EP1522634A2 - Dispositif de fraisage de route à chargement par l'arrière avec dispositif d'étanchéité réglable en hauteur - Google Patents

Dispositif de fraisage de route à chargement par l'arrière avec dispositif d'étanchéité réglable en hauteur Download PDF

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Publication number
EP1522634A2
EP1522634A2 EP04022744A EP04022744A EP1522634A2 EP 1522634 A2 EP1522634 A2 EP 1522634A2 EP 04022744 A EP04022744 A EP 04022744A EP 04022744 A EP04022744 A EP 04022744A EP 1522634 A2 EP1522634 A2 EP 1522634A2
Authority
EP
European Patent Office
Prior art keywords
sealing device
milling machine
machine according
road milling
road
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
EP04022744A
Other languages
German (de)
English (en)
Other versions
EP1522634B1 (fr
EP1522634A3 (fr
Inventor
Herbert Ley
Olaf Gaertner
Stefan Abresch
Dieter Simons
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 EP1522634A2 publication Critical patent/EP1522634A2/fr
Publication of EP1522634A3 publication Critical patent/EP1522634A3/fr
Application granted granted Critical
Publication of EP1522634B1 publication Critical patent/EP1522634B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 present invention relates to a rear-loading road milling machine with a Milling roll, which is arranged in a downwardly open roll housing, wherein a pointing in the direction of travel opening between the front part of the Roller housing and the road surface with a height-adjustable Sealing device can be closed.
  • the known road milling machines essentially have the following described construction.
  • the road milling machine includes a chassis that sits on Wheels or crawler tracks is supported. Further, in the chassis is a Milling roller provided, which is disposed within a roller housing, the down, ie in the direction of the road surface, is open.
  • a Milling roller provided, which is disposed within a roller housing, the down, ie in the direction of the road surface, is open.
  • the known road milling machines often have a transport device on, about the milled material an accompanying truck with a corresponding loading area can be supplied. If the milled material over the rear of the road milling machine fed to the truck, it is called a rear loader, while one of a front loader speaks when the milled material over the front of the Road milling machine is transported to the truck.
  • the well-known road milling machines lowered towards the road surface so that the rotating and out of the Roll housing protruding milling drum in engagement with the road surface comes, the lowering is usually done by lifting the wheels on which the chassis of the road milling machine is supported.
  • stripping devices consist essentially of a plate-shaped scraper behind the Milling roller is arranged, and whose essential task is on the milled surface left behind milled material, so that it Transport device can be supplied and not on the machined surface remains.
  • the area proves to be problematic in the direction of travel in front of the milling drum.
  • This problem has been addressed below Measures taken.
  • DE 197 39 915 C2 describes a banquet trimming unit in the direction of travel before the milling drum a protective and baffle rigid is arranged, which is a large part of the forwardly thrown milled material intercepts or redirects in the direction of the stern of the known unit.
  • known aggregate has the disadvantage that the depth of cut due to the rigid arrangement of the protective and baffle plate is limited. Furthermore remains between the lower edge of the protective and baffle plate and the Underground a pointing in the direction of travel opening through the milled material can be thrown forward and also to the sides.
  • rubber aprons were used developed, which, starting from a front part of the roll housing after extend down. Such rubber aprons are flexible, so they depending on the lowering of the road milling machine and thus the Can deform milling depth.
  • the mentioned rubber aprons should be used during the Milling process always lie on the road surface, regardless of the milling depth so that no opening between the front part of the roller housing and the Road surface remains.
  • the disadvantage is that said aprons in particular at low depths - in practice only an insufficient Seal against the ejected milled offer. So they tend Aprons to waving, so that a dense attachment is not given is.
  • the aprons are subject to high wear.
  • Shield assemblies designed in which a rigid, mostly metallic shield in vertical guides perpendicular to the road surface to be processed in front of the Opening between the front part of the roller housing and the road surface can be performed.
  • the known shields are dependent on the Milling depth adjustable in height, with adjustment via plug-in bolts or the suspension is achieved on a chain.
  • the present invention is thus based on the object, a rear-loading road milling machine with a sealing device for one in the direction of travel pointing opening between the front part of the roller housing and the To create paving that provides safe protection from being thrown forward Milled material in compliance with the predetermined feed of the milling drum guaranteed.
  • the road milling machine according to the invention is a so-called rear loader formed, i. the milled material is transferred via the rear of the road milling machine a corresponding transport device removed.
  • the road milling machine has a milling drum, which in a downwardly open roller housing is arranged. A pointing in the direction of travel opening between a front Part of the roller housing and the road surface can with a Seal device to be closed.
  • the sealing device can be adjusted in height. According to the invention, the sealing device for height adjustment about an axis in the direction of travel in front of the milling drum be pivoted.
  • the sealing device Due to the pivotability of the sealing device about an axis in Direction of travel is arranged in front of the milling drum, it is possible, the Sealing device to pivot on the road surface, so that no gap between the front part of the roller housing and the Road surface remains, are thrown out through the milled material to the front could.
  • the sealing device according to the invention in Contrary to the known vertically displaceable baffles not with the Tilt the road surface. Rather, the sealing device by the special suspension slid over the pavement, so this at Unevenness, such as ripple of the road surface or through existing traces of milling, the course of these bumps by pre- and Panning back follows. An interruption or even blocking of the Feed by tilting is thereby excluded.
  • the sealing device according to the invention advantages. So the contact pressure on the road surface of the sealing device is not more dependent on the depth of cut, as with the deformable rubber apron the case is. Rather, with the sealing device of Road milling machine according to the invention regardless of the milling depth constant contact pressure can be applied to the road surface, so that Even at low cutting depths a throwing out of milled material is prevented.
  • Road milling machine has the sealing device one of the opening facing baffle plate on.
  • a baffle can for example Metal exist, as well as the roller housing.
  • the sealing device on a swivel arm is attached on the one hand to the baffle plate and extends on the other hand, up to the axis about which the sealing device pivots can be.
  • a swivel arm be provided two or more pivot arms.
  • two pivot arms are provided, one of them End each extending to the lateral ends of the baffle plate and their the other end is rotatably guided on the ends of the axle.
  • the baffle plate has a circular arc-shaped cross-section. It is particularly preferred that the Radius of the circular arc cross-section of the distance between the axis and the baffle plate corresponds. In this way, the baffle plate points in each Point the same distance to the axis. Thus, the baffle can Regardless of the pivot position always in face contact with the front part of the roller housing stand without additional aids would be required, the changed distance between the roller housing and would have to balance baffle plate.
  • the sealing device under permanent Forming a contact line with the front part of the roller housing to the Axis can be pivoted.
  • an elongated sealing or stripping element intended.
  • This may be, for example, a rubber band, wherein the sealing or stripping element advantageously replaceable should be able to replace worn elements with new ones.
  • the sealing device has at least one Road surface facing skid on.
  • One or more skids allow easier sliding of the sealing device over the Pavement. It is particularly advantageous if the skid or Skids extend in the direction of travel of the road milling machine.
  • the skid extends in a preferred embodiment of the Invention over the entire width of the sealing device.
  • the skid is curved downwards. That way is Ensure that the skid on pivoting over its entire length rolls off the pavement and not just jump on one of its ends rests, as would be the case with straight skids. Thus, one is ensures even wear on the skids, resulting in an increased Life of the skids leads.
  • the Sealing device to form a contact line with the Paving be pivoted against the pavement.
  • the skid and / or the Sliding strip to be replaced to worn skids or wear strips to replace with new skids or wear strips.
  • the skid and / or slide bar is made of hardened Material that has a greater hardness than the material of the other constituents of the Having sealing device, so that in contact with the pavement standing skid or sliding strip is subject to low wear.
  • the sealing device can with a predetermined pressure against the Road surface to be pivoted.
  • the pressure itself can for example, by a spring element which acts on the sealing device, or simply applied by the weight of the sealing device.
  • Sealing device in a further embodiment of the invention at Be exceeded over the predetermined pressure swung back.
  • the sealing device the harder or larger bumps and Obstacles, but without leaving the road surface.
  • the sealing device by means of a hydraulic to pivot about the axis.
  • a hydraulic to pivot about the axis can constant hydraulic pressure can be adjusted with the hydraulics Swiveling back the sealing device allows when the predetermined pressure is exceeded. This can be done by hand, for example Pressure relief valve within the hydraulics done.
  • the sealing device in different Pivoting positions are locked. So can the sealing device be swung back for example, in a transport position and locked, in which the sealing device does not rest on the road surface.
  • the Locking can be done by conventional means, such as a chain suspension or staking with bolts.
  • Preferably the locking also done by means of hydraulic.
  • Fig. 1 shows the schematic representation of an embodiment of the rear-loading road milling machine according to the invention 2.
  • the road milling machine 2 has a chassis 4, which in the present embodiment, three Wheels 6, 6, 8 is supported, wherein the two rear wheels 6, 6 (only one is in Fig. 1) seen laterally in the area of the rear and the front wheel 8 in the middle Area of the front side of the road milling machine 2 is arranged.
  • the rear wheels 6, 6 are height adjustable by means of a hydraulic, the steering of the Road milling machine 2 via the front wheel 8 takes place, which is a vertical Axis A can be rotated.
  • such a road milling machine 2 in place of the wheels 6, 6, 8 are also worn by crawler tracks.
  • the number of intended wheels or crawler tracks can vary.
  • the driver's station 10 is provided at the top of the rear of the road milling machine 2, where Among other things, a seat 12 for the operator and a Steering device 14 for steering the front wheel 8 is located.
  • roller housing 16 Below the driver's station 10 is a roller housing 16, which thus is also arranged in the area of the rear of the road milling machine 2.
  • the Roll housing 16 is a downward, that is in the direction of the road surface 18, opened housing in which a milling drum 20 is arranged, wherein the Longitudinal axis of the milling drum 20 extends transversely to the direction of travel, in Fig. 1 at Hand of the arrow a is shown.
  • the milling drum 20 protrudes from the roller housing 16 down in the direction of the road surface 18 forth.
  • the road milling machine 2 according to the invention can, for example, with a Milling roller quick change system be provided, with a replacement of the Milling roller 20 through a milling drum with a smaller or larger milling width or by a milling drum other structure with little time and effort is possible.
  • a height adjustable stripping device 22 is provided at the rear in the direction of travel a of the roller housing 16 .
  • a transport device 24 about the milled milled an accompanying truck with appropriate Loading surface can be supplied (not shown). Since the milled material over the Rear of the road milling machine is fed to the truck, it is - how mentioned at the beginning - to a so-called rear loader road milling machine.
  • a in front of the milling drum 20 is a sealing device 26th provided, in particular with reference to FIGS. 2 to 4 in more detail is explained.
  • the roller housing 16 has a front in the direction of travel a part 28 which in The rule is formed by a continuous plate. Because this front part 28 must not come into contact with the road surface 18, which inevitably to Damage to the front part 28 or to a hindrance of Feed in the direction of travel would lead a, remains between the front Part 28 and the pavement 18 always a forward opening B. This opening B is inventively by the sealing device 26th locked.
  • the sealing device 26 is designed to be adjustable in height, wherein the Height adjustment about an axis C, in the direction of travel a in front of the milling drum 20th is arranged, can be pivoted, as indicated by the arrow b is shown.
  • the sealing device 26 has a the opening B facing baffle plate 30, which extends over the entire width the roller housing 16 and thus over the entire width of the milling drum 20th extends. Furthermore, the sealing device 26 comprises a pivoting arm 32, which is attached to the side facing away from the opening B of the baffle plate 30 and extends in the direction of travel a forward to the axis C, where the Swivel arm 32 pivotally mounted about the axis C in a suspension 34 is, which in turn is arranged on the chassis 4.
  • the sealing device 26 further comprises a reinforcing rib 36 which transverse to the side facing away from the opening B of the baffle plate 30th extends. On this reinforcing rib are further means 38 for connecting the Sealing device 26 with the piston / cylinder assembly 40 a not shown hydraulic for lifting and lowering the Sealing device 26 is provided.
  • the baffle plate 30 has a circular arc-shaped cross-section, wherein the Radius of the circular arc cross-section of the distance D between the Axis C and the baffle plate 30 corresponds (see Figure 4).
  • the sealing device 26 has a Road surface 18 facing skid 46, which, starting from the Opening B facing away from the baffle plate 30 extends in the direction of travel a.
  • the preferably made of hardened material and interchangeable Skid 46 is curved downwards, so that a rolling of the skid 46 on the road surface 18 during pivoting of the sealing device 26th and thus a uniform wear is guaranteed.
  • the skid 46 extends along the underside of the Swivel arm 32, so that no additional support of the skid 46 is required.
  • a slide bar 50 along the Contact line 48 is provided.
  • the sliding strip 50 which preferably consists of hardened material and is arranged interchangeable, along the bottom, the pavement 18th facing edge of the baffle plate 30th
  • the wheels 6, 6 In order to remove the road surface 18 by the road milling machine 2, be first the wheels 6, 6 raised to the one with the blades (not shown) equipped milling drum 20 with the road surface 18 into engagement.
  • the Milling roller 20 rotates in a direction of rotation c, the Rotation direction of the wheels 6, 6, 8 is opposite.
  • the within the roller housing 16 about the milling drum 20 thrown backwards becomes, as shown by the arrow d. From there, the milled material enters the transport device 24, the milled material not shown Accompanying vehicle feeds.
  • the sealing device 26 via the hydraulic, the hand on the Piston / cylinder arrangement 40 is indicated, with a predetermined pressure pivoted against the road surface 18.
  • the sealing device 26 forms in this position on the one hand, the contact line 42 with the front part 28 of the Roller housing 16 and on the other hand, the contact line 48 with the road surface 18th from, whereby the opening B between the front part 28 of the roller housing 16 and the pavement 18 entirely through the baffle plate 30 of the Sealing device 26 is closed. Both at small cutting depths (Fig. 2) as well as at large cutting depths (Fig. 3) is thus always a secure seal guaranteed.
  • the sealing device 26 is in different Swivel positions lockable. So it is for example advantageous if the Sealing device 26 in a raised position in which they do not open the road surface 18 rests can be locked, so that the Road milling machine 2 by means of a transport vehicle to the place of use can be transported.
  • For locking the sealing device 26 are all known in the prior art devices usable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Road Paving Machines (AREA)
EP04022744A 2003-10-10 2004-09-24 Dispositif de fraisage de route à chargement par l'arrière avec dispositif d'étanchéité réglable en hauteur Expired - Lifetime EP1522634B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347874 2003-10-10
DE10347874A DE10347874A1 (de) 2003-10-10 2003-10-10 Hecklader-Straßenfräßmaschine mit höhenverstellbarer Abdichtungseinrichtung

Publications (3)

Publication Number Publication Date
EP1522634A2 true EP1522634A2 (fr) 2005-04-13
EP1522634A3 EP1522634A3 (fr) 2005-11-23
EP1522634B1 EP1522634B1 (fr) 2009-11-11

Family

ID=34306403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04022744A Expired - Lifetime EP1522634B1 (fr) 2003-10-10 2004-09-24 Dispositif de fraisage de route à chargement par l'arrière avec dispositif d'étanchéité réglable en hauteur

Country Status (5)

Country Link
US (1) US7370916B2 (fr)
EP (1) EP1522634B1 (fr)
CN (1) CN100357522C (fr)
AT (1) ATE448361T1 (fr)
DE (2) DE10347874A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050875A2 (fr) 2007-10-17 2009-04-22 Dynapac GmbH Fraiseuse pour chaussées
CN104141276A (zh) * 2013-05-08 2014-11-12 维特根有限公司 道路铣刨机以及用于使道路铣刨机转向的方法
US8939515B2 (en) 2012-06-25 2015-01-27 Wirtgen Gmbh Road milling machine
EP2708650A3 (fr) * 2012-06-25 2015-11-18 Wirtgen GmbH Engin de construction automoteur
CN106087682A (zh) * 2016-07-29 2016-11-09 徐州徐工筑路机械有限公司 一种冷再生机举升机构及其控制方法
US10113275B2 (en) 2015-11-12 2018-10-30 Wirtgen Gmbh Self-propelled ground milling machine and method for working on a traffic surface

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US8177456B2 (en) * 2007-12-21 2012-05-15 Asphalt Zipper, Inc. Pavement milling assembly
US8469456B2 (en) 2009-03-25 2013-06-25 Wirtgen Gmbh Ejector unit for a road milling machine or the like
DE102009014729B3 (de) * 2009-03-25 2010-11-04 Wirtgen Gmbh Auswerfer für eine Straßenfräsmaschine oder dergleichen
US8523289B2 (en) 2009-04-10 2013-09-03 Kennametal Inc. Retention assembly for cutting bit
US8523290B2 (en) * 2009-04-10 2013-09-03 Kennametal Inc. Rotatable cutting tool-tool holder-base assembly
USD624940S1 (en) * 2010-01-07 2010-10-05 Wirtgen Gmbh Kicker plate
USD632703S1 (en) * 2010-01-07 2011-02-15 Wirtgen Gmbh Kicker plate
USD628602S1 (en) * 2010-01-07 2010-12-07 Wirtgen Gmbh Kicker plate
DE102011009093A1 (de) * 2010-04-17 2011-10-20 Bomag Gmbh Rotorkasten für eine Bodenmaschine und Bodenmaschine mit einem solchen Rotorkasten
CN101881006B (zh) * 2010-07-15 2012-02-01 莱州市精磊机械有限公司 高速铁路箱梁铣刨机
DE102012203649A1 (de) 2012-03-08 2013-09-12 Wirtgen Gmbh Selbstfahrende Straßenfräsmaschine zum Bearbeiten von Straßenoberflächen, insbesondere Großfräse
US9328468B2 (en) * 2012-03-08 2016-05-03 Wirtgen Gmbh Self-propelled road milling machine with adjustable width scraper blade
DE102012103440B4 (de) * 2012-04-19 2016-01-21 Wirtgen Gmbh Kufensegment für einen Kantenschutz einer Straßenfräsmaschine und Kantenschutz für eine Straßenfräsmaschine
US8870297B2 (en) * 2012-06-19 2014-10-28 Caterpillar Inc. Reclaiming drum having reversible kicker paddle
DE102012016173A1 (de) * 2012-08-16 2014-02-20 Wirtgen Gmbh Selbstfahrende Baumaschine und Verfahren zum Betreiben einer Baumaschine
US8807868B2 (en) 2012-12-18 2014-08-19 Caterpillar Paving Products Inc. Adjustable sizing bar for rotary mixers
DE102015209740A1 (de) 2014-12-30 2016-06-30 Wirtgen Gmbh Selbstfahrende Strassenfräsmaschine zum Bearbeiten von Strassenoberflächen, sowie Verfahren zum Bearbeiten von Strassenoberflächen mit einer Strassenfräsmaschine
US10094078B2 (en) 2016-03-03 2018-10-09 Caterpillar Paving Products Inc. Cold planer rear door and sliding plates sealing design
DE102018006688A1 (de) * 2018-08-23 2020-02-27 Bomag Gmbh Bodenfräsmaschine und Verfahren zum Betrieb einer Bodenfräsmaschine
US11660604B2 (en) 2020-01-23 2023-05-30 Caterpillar Paving Products Inc. Milling machine
US11591759B2 (en) 2020-04-20 2023-02-28 Caterpillar Paving Products Inc. Method to prevent binding in road milling machines
US12203227B2 (en) 2022-09-20 2025-01-21 Caterpillar Paving Products Inc. Method and arrangement for dislodging a floating ground guard of a rotary mixer

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050875A2 (fr) 2007-10-17 2009-04-22 Dynapac GmbH Fraiseuse pour chaussées
EP2050875A3 (fr) * 2007-10-17 2011-06-22 Dynapac GmbH Fraiseuse pour chaussées
US8939515B2 (en) 2012-06-25 2015-01-27 Wirtgen Gmbh Road milling machine
EP2708650A3 (fr) * 2012-06-25 2015-11-18 Wirtgen GmbH Engin de construction automoteur
US9422677B2 (en) 2012-06-25 2016-08-23 Wirtgen Gmbh Self-propelled construction machine
US9714488B2 (en) 2012-06-25 2017-07-25 Wirtgen Gmbh Road milling machine
CN104141276A (zh) * 2013-05-08 2014-11-12 维特根有限公司 道路铣刨机以及用于使道路铣刨机转向的方法
US10113275B2 (en) 2015-11-12 2018-10-30 Wirtgen Gmbh Self-propelled ground milling machine and method for working on a traffic surface
US10655285B2 (en) 2015-11-12 2020-05-19 Wirtgen Gmbh Self-propelled ground milling machine and method for working on a traffic surface
US11286627B2 (en) 2015-11-12 2022-03-29 Wirtgen Gmbh Self-propelled ground milling machine and method for working on a traffic surface
CN106087682A (zh) * 2016-07-29 2016-11-09 徐州徐工筑路机械有限公司 一种冷再生机举升机构及其控制方法

Also Published As

Publication number Publication date
US7370916B2 (en) 2008-05-13
EP1522634B1 (fr) 2009-11-11
EP1522634A3 (fr) 2005-11-23
CN100357522C (zh) 2007-12-26
CN1605683A (zh) 2005-04-13
ATE448361T1 (de) 2009-11-15
US20050123350A1 (en) 2005-06-09
DE502004010341D1 (de) 2009-12-24
DE10347874A1 (de) 2005-05-12

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