EP2568079B1 - Dispositif d'asphaltage à froid - Google Patents

Dispositif d'asphaltage à froid Download PDF

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Publication number
EP2568079B1
EP2568079B1 EP20120006259 EP12006259A EP2568079B1 EP 2568079 B1 EP2568079 B1 EP 2568079B1 EP 20120006259 EP20120006259 EP 20120006259 EP 12006259 A EP12006259 A EP 12006259A EP 2568079 B1 EP2568079 B1 EP 2568079B1
Authority
EP
European Patent Office
Prior art keywords
milling
asphalt
travel
drum
emulsion
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.)
Not-in-force
Application number
EP20120006259
Other languages
German (de)
English (en)
Other versions
EP2568079A1 (fr
Inventor
Günter Mayländer
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.)
Rothmund Maschinenbau GmbH
Original Assignee
Rothmund Maschinenbau 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 Rothmund Maschinenbau GmbH filed Critical Rothmund Maschinenbau GmbH
Publication of EP2568079A1 publication Critical patent/EP2568079A1/fr
Application granted granted Critical
Publication of EP2568079B1 publication Critical patent/EP2568079B1/fr
Not-in-force 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
    • E01C11/00—Details of pavings
    • E01C11/005—Methods or materials for repairing pavings
    • 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
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving

Definitions

  • the invention relates to a motor-driven mobile device for cold asphalting of road surfaces, to eliminate defects in the region of the surface layer of a roadway, wherein a wheeled base chassis is provided with a reservoir for storing bitumen in the form of an emulsion, wherein the base Chassis with a milling device for removing and crushing granules of cover layer parts from the vicinity of a damaged area of a roadway and a conveyor for conveying the granules is provided in a mixing zone, in which a mixing of the granules with at least the bitumen emulsion to form a curable composition ,
  • Cold Asphalt ists-devices of the type mentioned are used in the prior art, inter alia, to To repair damaged areas in road surfaces.
  • raw asphalt asphalt composed of bitumen, sand and / or gravel is processed by the addition of water to a viscous mass, which is introduced into the damaged area of a roadway and then by expelling water by periodic pressure in the form of a fürrüttelung with the help of compressed air Device is solidified to cover the damaged area with hardened cold asphalt.
  • the disadvantage here is that larger quantities of sand / gravel are needed to form raw cold asphalt in addition to the bitumen, which are to be transported to the damaged area for this purpose.
  • a device of the type mentioned is out AT 006 869 U2 known.
  • a similar device is also off EP 0 324 491 A1 known
  • DE 37 88 952 T2 discloses a method for cold regeneration of the reclaimed roadway facing materials with a view to their reuse, mechanically recovering said materials and treating them in situ with a composite binder, characterized by milling the topcoat of the pavement in a manner known per se and in that the composite binder is an aqueous emulsion of at least one bituminous binder portion selected from the bitumen and at least one compatible agent selected from the aromatic oil-derived oils and / or the hydraulic binders.
  • the object of the invention is to provide a cold asphalting device in which the amount of sand / gravel required for the formation of raw cold asphalt is markedly reduced compared with the known devices.
  • this object is achieved in that the hardenable mass by means of at least one controllable outlet opening dosed into a created by means of the milling recess in the top layer of the roadway can be introduced, and a reservoir for additional granules above and arranged in the direction of travel behind the milling drum and granules to be added from the reservoir via a rotatably mounted metering shaft is conveyed to ensure a homogeneous distribution of the granules over the entire width of a cavity to be filled a road surface, the rotational speed of the metering shaft adjustable is to specify the amount of additional granules.
  • the curable composition metered by means of at least one controllable outlet opening in a created by the milling recess in the top layer of the roadway can be introduced, and a reservoir for additional granules above and in the direction of travel behind the milling drum is arranged and granules to be added from the reservoir via a rotatably mounted metering shaft is conveyed to ensure a homogeneous distribution of the granules over the entire width of a cavity to be filled a road surface, wherein the rotational speed of the metering shaft is adjustable to the amount to specify additional granules, achieved that at least a part of the required for the formation of raw cold asphalt sand / gravel is replaced by provided by means of milling the surface layer of the road surface asphalt granules, so that the amount of sand / gravel is either greatly reduced compared to a conventional repair of damaged areas or additional sand / gravel depending on the circumstances is also completely unnecessary
  • the milling device is preferably formed by a rotatable cylindrical drum whose surface is provided with a plurality of asphalt-removing milling elements.
  • the milling drum is preferably arranged in the direction of travel in front of the base chassis such that the axis of the milling drum is oriented perpendicular to the direction of travel to a rotation of the drum form a hollow cuboid recess in the cover layer.
  • the milling drum is operated in opposite directions to the direction of rotation of the drive wheels.
  • An emulsion reservoir is also preferably disposed above and in the direction of travel behind the milling drum, with a plurality of emulsion-spraying nozzles attached to the frame to form a mixture of crushed crushed asphalt (rock plus bitumen) and added granules during introduction into To spray a cavity of a road surface to be filled continuously and homogeneously with emulsion.
  • the milling drum is rotatably mounted in a frame which forms a mechanical unit containing rotary elements.
  • the frame is preferably mounted to raise or lower a first end of the axis of the milling drum relative to a second end of the axis of the milling drum. Furthermore, the frame is preferably mounted horizontally displaceable transversely to the direction of travel in order to effect a lateral displacement of the milling drum, and mounted vertically displaceable via a trapezoidal threaded spindle in order to specify a cutting depth of the milling drum.
  • the reservoir may be configured to contain a sand / gravel mixture, optionally one for formation a hardened cold asphalt is required to mix raw cold asphalt.
  • the conveying device can be designed to convey the asphalt granules milled by the milling device into the storage device.
  • the conveyor may be designed to convey the asphalt granules milled by the milling device into the mixing zone.
  • a comminuting device is provided, by means of which the asphalt granulate delivered by the milling device can be further comminuted.
  • the comminution device may comprise two rotatable drums arranged in parallel at a predetermined distance and forming a gap, which are arranged behind the milling device in the direction of travel and whose axes are oriented perpendicular to the direction of travel, the space between the drums being provided as comminution zone for asphalt granules.
  • a pressing element is formed on the base chassis, by means of which a specifiable pressure on a introduced into a recess of a road surface layer curable composition can be applied to cure for water from the bitumen emulsion to dissipate curable mass.
  • the pressing element is preferably formed by a screed, which is designed to exert a contact pressure in the range of 1 bar to 100 bar on the curable composition.
  • the removed and recycled asphalt material must be brought into a defined position (length and height).
  • the corresponding additives and binders are then added in a calculated amount to the granules of the removed asphalt layer in a control and regulation unit and by means of a suitable conveying device such as helix, screw conveyor or the like. to feed in a defined height of the screed.
  • Another possibility is to fill the abraded and crushed asphalt layer into an overhead storage container in which a defined mixing of the asphalt granulate with the additives and the binder takes place.
  • the mixed material in the calculated defined amount in the damaged area is introduced so that the damaged area is filled evenly before pressurizing and smoothing.
  • a plurality of outlet openings can be used with individual controllable outlet elements below the mixing unit, which are opened over a control and regulating device so long as to introduce material in the correct amount and location in a damaged area.
  • a hydrostatic steering is provided with an internal combustion engine device for generating energy for operating two separate axial piston pumps, which are each designed for operation of a respective associated, hydraulically operated radial piston motor.
  • the hydrostatic steering system preferably contains in each case a closed circulation system for in each case one axial piston pump and one radial piston motor.
  • a closed circulation system for in each case one axial piston pump and one radial piston motor.
  • the speed of a radial piston motor is adjustable.
  • an axial piston pump is preferably provided with an electrically adjustable mounted swash plate, via which the volume and thus the flow rate of the axial piston pump is adjustable. In this way is a very effective side steering given that even allows rotation on the spot.
  • An axial piston pump is preferably designed to produce a maximum pressure of about 400 bar.
  • a hydraulic motor is preferably arranged in the region of the center of a vehicle, wherein a chain drives a respective front and rear wheel of the relevant side of the vehicle.
  • inventive mobile device 100 for cold asphalting of road surfaces is designed to eliminate damage in the area of the outer layer of a roadway and includes a motorized, mounted on wheels base chassis 110th
  • the base chassis 110 is provided with a storage 120 for storing bitumen in the form of an emulsion and created granules and additional granules.
  • the base chassis 110 further comprises a milling device 130 for removing and crushing of cover layer portions from the vicinity of a damaged area of a roadway, wherein by the crushing the production of a Granules are made.
  • the storage 120 is designed to contain in addition to the bitumen emulsion and a sand / gravel mixture.
  • the base chassis 110 includes a conveyor for conveying the granules into a mixing zone 140 in which the granules are mixed with at least the bitumen emulsion to form a hardenable mass.
  • the hardenable mass is then metered by means of a controllable outlet opening 150 into a created by means of the milling device 130 recess in the top layer of the roadway introduced.
  • the milling device 130 is formed by a rotatable cylindrical drum whose surface is provided with a plurality of asphalt-removing milling elements 131.
  • the drum is arranged in front of the base chassis 110 in the direction of travel, and the axis of the drum is oriented perpendicular to the direction of travel in order to form a hollow cuboid recess in the cover layer upon rotation of the drum.
  • the conveying device is designed to convey the asphalt granulate milled by the milling device 130 into the storage reservoir 120.
  • a comminuting device 160 is provided below the mixing zone 140 on the base chassis 110, by means of which the asphalt granulate delivered by the milling device 130 can be further comminuted.
  • the comminution device 160 contains two rotatable drums arranged in parallel at a predetermined spacing and forming a gap, which are arranged behind the milling device 130 in the direction of travel and whose axes are oriented perpendicular to the direction of travel, the space between the drums being provided as a comminuting zone for asphalt granules ,
  • a pressing element is formed, by means of which a specifiable pressure can be applied to a curable mass introduced into a recess of a road surface layer in order to discharge water from the bitumen emulsion of the hardenable mass for hardening.
  • the pressing element 170 is formed by a screed, which is designed to exert a contact pressure in the range of 1 bar to 100 bar on the curable composition.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Repair (AREA)

Claims (19)

  1. Dispositif (100) mobile motorisé destiné à l'asphaltage à froid de surfaces de chaussée, à l'élimination de parties endommagées dans la zone de la couche de recouvrement d'une chaussée, un châssis de base (110) monté sur roues et comportant un réservoir (120) pour le stockage de bitume sous forme d'une émulsion étant prévu, le châssis de base (110) étant muni d'un équipement de fraisage (130) destiné à l'enlèvement et au broyage, de manière à obtenir un granulat, de portions de couche de recouvrement avoisinant une partie endommagée d'une chaussée ainsi que d'un équipement de convoyage destiné au convoyage du granulat dans une zone de mélange (140) dans laquelle un mélange du granulat avec au moins l'émulsion de bitume a lieu afin de générer une masse durcissable, caractérisé en ce que la masse durcissable peut être introduite, par au moins un orifice de sortie (150) réglable, de façon dosée dans un évidement pratiqué au moyen de l'équipement de fraisage (130) dans la couche de recouvrement de la chaussée, et qu'un réservoir pour granulat supplémentaire est agencé au-dessus du tambour de fraisage (130) et derrière ce dernier dans le sens de déplacement et que du granulat à ajouter peut être convoyé hors du réservoir par l'intermédiaire d'un arbre de dosage logé de manière à pouvoir tourner afin de garantir une répartition homogène du granulat sur toute la largeur d'une cavité à remplir d'une surface de chaussée, la vitesse de rotation de l'arbre de dosage étant réglable afin de fixer la quantité de granulat supplémentaire.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'équipement de fraisage (130) consiste en un tambour cylindrique rotatif dont la surface est pourvue d'une pluralité d'éléments de fraise (131) retirant de l'asphalte.
  3. Dispositif selon la revendication 2, caractérisé en ce que l'équipement de fraisage (130) est agencé avant le châssis de base (110) dans le sens de déplacement, et en ce que l'axe du tambour est orienté perpendiculairement au sens de déplacement afin d'engendrer un évidement en forme de parallélépipède creux dans la couche de recouvrement quand le tambour est en rotation.
  4. Dispositif selon une des revendications 2 ou 3, caractérisé en ce que le tambour de fraisage (130) est actionné en sens opposé au sens de rotation des roues motrices.
  5. Dispositif selon une des revendications précédentes, caractérisé en ce qu'un réservoir (120) pour émulsion est également agencé au-dessus du tambour de fraisage (130) et derrière ce dernier dans le sens de déplacement, et en ce qu'une pluralité de gicleurs sont installés sur le cadre pour asperger de l'émulsion, afin de, pendant une insertion dans une cavité à remplir d'une surface de chaussée, asperger de manière continue et homogène avec de l'émulsion un mélange d'asphalte cassé et broyé (pierre + bitume) et de granulat ajouté.
  6. Dispositif selon une des revendications de 2 à 5, caractérisé en ce que le tambour de fraisage (130) est logé de manière à pouvoir tourner dans un cadre qui constitue une unité mécanique comprenant des éléments rotatifs.
  7. Dispositif selon une des revendications de 2 à 6, caractérisé en ce que le cadre est monté pour relever ou abaisser une première extrémité de l'axe du tambour de fraisage (130) par rapport à une deuxième extrémité de l'axe du tambour de fraisage (130).
  8. Dispositif selon une des revendications de 2 à 7, caractérisé en ce que le cadre est monté de manière horizontalement coulissante transversalement par rapport au sens de déplacement afin d'engendrer un coulissement latéral du tambour de fraisage (130).
  9. Dispositif selon une des revendications de 2 à 8, caractérisé en ce que le cadre est monté de manière verticalement coulissante par l'intermédiaire d'une broche filetée trapézoïdale afin de fixer une profondeur de fraisage du tambour de fraisage (130).
  10. Dispositif selon une des revendications précédentes, caractérisé en ce que l'équipement de convoyage est conçu pour convoyer dans le réservoir (120) le granulat d'asphalte fraisé par l'équipement de fraisage (130).
  11. Dispositif selon une des revendications précédentes, caractérisé en ce que l'équipement de convoyage est conçu pour convoyer dans la zone de mélange le granulat d'asphalte fraisé par l'équipement de fraisage (130).
  12. Dispositif selon une des revendications précédentes, caractérisé en ce qu'un équipement de broyage (160) est prévu, au moyen duquel le granulat d'asphalte fourni par l'équipement de fraisage (130) peut être encore davantage broyé.
  13. Dispositif selon la revendication 12, caractérisé en ce que l'équipement de broyage (160) comporte deux tambours rotatifs qui sont agencés parallèlement et à un espacement prédéterminé, formant ainsi un interstice, et qui sont agencés derrière l'équipement de fraisage (130) dans le sens de déplacement et dont les axes sont orientés perpendiculairement au sens de déplacement, l'interstice entre les tambours étant prévu en tant que zone de broyage pour granulat d'asphalte.
  14. Dispositif selon une des revendications précédentes, caractérisé en ce qu'un élément de pressage (170) est installé sur le châssis de base (110), au moyen duquel une pression prédéterminable est applicable sur une masse durcissable introduite dans un évidement d'une couche de recouvrement de chaussée afin d'évacuer de l'eau de l'émulsion de bitume de la masse durcissable pour un durcissement.
  15. Dispositif selon la revendication 14, caractérisé en ce que l'élément de pressage (170) consiste en un madrier qui est conçu pour exercer une pression de contact située entre 1 bar et 100 bar sur la masse durcissable.
  16. Dispositif selon une des revendications précédentes, caractérisé en ce qu'une direction hydrostatique est prévue, dotée d'un équipement de moteur à combustion destiné à une production d'énergie requise pour le fonctionnement de deux pompes à pistons axiaux distinctes respectivement conçues pour un fonctionnement d'un moteur à pistons radiaux à actionnement hydraulique leur étant respectivement affecté.
  17. Dispositif selon la revendication 16, caractérisé en ce qu'un système en circuit respectivement fermé pour respectivement une pompe à pistons axiaux et un moteur à pistons radiaux est prévu.
  18. Dispositif selon une des revendications 16 ou 17, caractérisé en ce que le régime d'un moteur à pistons radiaux est réglable par l'intermédiaire d'un débit variablement réglable de l'huile hydraulique d'une pompe à pistons axiaux.
  19. Dispositif selon une des revendications de 16 à 18, caractérisé en ce qu'une pompe à pistons axiaux est pourvue d'un plateau oscillant monté de manière électriquement orientable par le biais duquel le volume et donc le débit de la pompe à pistons axiaux est réglable.
EP20120006259 2011-09-08 2012-09-05 Dispositif d'asphaltage à froid Not-in-force EP2568079B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011114035 2011-09-08

Publications (2)

Publication Number Publication Date
EP2568079A1 EP2568079A1 (fr) 2013-03-13
EP2568079B1 true EP2568079B1 (fr) 2014-01-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120006259 Not-in-force EP2568079B1 (fr) 2011-09-08 2012-09-05 Dispositif d'asphaltage à froid

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EP (1) EP2568079B1 (fr)
DE (1) DE102012108224A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108867250B (zh) * 2018-07-19 2021-01-26 重庆文理学院 适用于多层沥青路面的热再生车

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606801B1 (fr) * 1986-11-18 1989-03-10 Colas Sa Procede pour regenerer a froid les couches superieures des chaussees et liants pour la mise en oeuvre de ce procede
IT8819093A0 (it) * 1988-01-15 1988-01-15 Wirtgen Macchine Srl Procedimento di rigenerazione di un manto stradale in conglomerato bituminoso con applicazione a freddo del materialedi ricoprimento riciclato.
GB2392190B (en) * 2002-08-16 2005-12-21 Roads Europ Ltd Improved road repair systems
US7004675B2 (en) * 2003-03-06 2006-02-28 Carolina P&P, Llc Pavement recycling machine and method of recycling pavement
AT6869U3 (de) * 2003-12-23 2005-01-25 Hermann Boeckle Einrichtung zur erstellung von stabilisierten tragdeckschichten auf wirtschaftswegen
DE202011002005U1 (de) * 2011-01-24 2011-04-28 Schlottmann, Alfred Kompakte Straßenschädenreparaturmaschine

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EP2568079A1 (fr) 2013-03-13
DE102012108224A1 (de) 2013-03-14

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