EP1396581B3 - Dispositif de traitement de sols ou des chaussées - Google Patents

Dispositif de traitement de sols ou des chaussées Download PDF

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Publication number
EP1396581B3
EP1396581B3 EP03018677.9A EP03018677A EP1396581B3 EP 1396581 B3 EP1396581 B3 EP 1396581B3 EP 03018677 A EP03018677 A EP 03018677A EP 1396581 B3 EP1396581 B3 EP 1396581B3
Authority
EP
European Patent Office
Prior art keywords
outlet nozzle
nozzle
closing element
closing
bitumen
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.)
Expired - Lifetime
Application number
EP03018677.9A
Other languages
German (de)
English (en)
Other versions
EP1396581A2 (fr
EP1396581A3 (fr
EP1396581B1 (fr
Inventor
Herbert Ley
Peter Busley
Walter GRÜBER
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 EP1396581A2 publication Critical patent/EP1396581A2/fr
Publication of EP1396581A3 publication Critical patent/EP1396581A3/fr
Publication of EP1396581B1 publication Critical patent/EP1396581B1/fr
Application granted granted Critical
Publication of EP1396581B3 publication Critical patent/EP1396581B3/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
    • E01C23/065—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/522—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings
    • B05B15/5223—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening
    • B05B15/5225—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using cleaning elements penetrating the discharge openings the cleaning element, e.g. a needle, and the discharge opening being movable relative to each other in a direction substantially parallel to the flow of liquid or other fluent material through said opening the cleaning element being located upstream of the discharge opening or being actuated upstream therefrom
    • 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
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder

Definitions

  • the invention relates to a device for processing floors or roadways according to the preamble of claim 1.
  • the generic term is based on a state of the art as he, for example, from the EP 960 239 B1 is known.
  • Other generic devices are in the DE 42 06 994 A , in the DE 42 37 512 A , in the DE 195 04 495 A and in the US 2,394,017 A described.
  • the known devices for working floors or lanes are provided with a work roll, which breaks up and mixes the ground or the roadways. In the case of hard roads made of asphalt or concrete, these are milled.
  • the work roll is surrounded by a bell-shaped roll housing which encloses the working space of the work roll, this working space serves as a mixing space for mixing the processed soil material with hydraulic or bituminous binders or with water.
  • the hydraulic or bituminous binder or Wassser is injected by means of a fixed to the roller housing spray into the working space, wherein a plurality of outlet nozzles of the spraying device are arranged on the roller housing directed into the working space.
  • the cutting circle of the tools of the work roll has a relatively small distance from the roll housing, e.g.
  • the processed with binders or water processed material can push into the outlet nozzles even at a high spray pressure or can accumulate in the area in front of the outlet nozzle.
  • the outlet nozzles are contaminated by caked or hardened or dried, processed material from the working space and clogged, whereby the spraying performance is reduced or even completely prevented.
  • the invention is therefore based on the object to improve a device for processing soils and roads with directed into the workspace outlet nozzles of a sprayer to the effect that the cleaning and maintenance is reduced to a minimum, excluding accident risks.
  • the at least one outlet nozzle has a controllable closing device with a closing element which releases the outlet nozzle in an open position and closes the outlet nozzle in a closed position.
  • the closing device can trigger an additional movement of the closing element beyond the closed position with which blockages on and / or in the outlet nozzle can be eliminated.
  • the outlet nozzle can either be completely released or locked at any time such that during or after a working process no impurities can enter the outlet nozzle from the outside and thus lead to a partial or complete blockage of the outlet nozzle.
  • the closing element of the closing device can perform an additional movement, preferably a lifting movement, beyond the closed position, so that contaminants adhering in front of the outlet nozzle can be automatically removed.
  • the controllable closing device has three selectively controllable positions of the closing element. In this way it is ensured that the resulting during the mixing process from the processed soil or roadway material and the hydraulic or bituminous binders or water mass after cooling or curing or setting can not completely or partially close the outlet nozzles from the outside.
  • the working nozzles of the work roll facing outlet nozzles are therefore always fully operational and can not lead by partial blockage or complete failure to an uneven distribution of hydraulic or bituminous binder or water.
  • the closed position of the closing element can also be used to turn off the outlet nozzles of the spray partly for quantity control.
  • the closing element is movable coaxially with the outlet nozzle.
  • the nozzle cross section of the outlet nozzle and the cross section of the closing element are adapted to each other and preferably designed circular cylindrical.
  • the fit between the bore of the outlet nozzle and the closing element is adapted to all media to be sprayed (binder or water) such that no medium can escape from the outlet nozzle in the closed position and without pressurization.
  • the game is sufficiently large, so that no jamming of the closing element can occur even at higher operating temperatures.
  • the outlet nozzle may be connected to a loop or to a tank.
  • the outlet nozzle is arranged on a line or on an injection chamber, wherein the hydraulic or bituminous binder or water can be fed transversely to the outlet nozzle.
  • the closing element traverses the line or the injection chamber for closing or cleaning the outlet nozzle and is guided coaxially to the outlet nozzle. In the open position, the closing element essentially completely frees the cross section of the line or the inlet chamber. In this case, the hydraulic or bituminous binder or the water can flow freely to the outlet nozzle. In the case of a loop, the binder or water can flow past in the closed position of the closing element to this.
  • the closing element in the closed position, is set back relative to the lateral surface of the roller housing facing the working space. In the recessed position of the closing element, the closing element is better protected against damage by hard, worn-off material. The front tip of the closing element thereby closes approximately flush with the end of the nozzle channel of the outlet nozzle facing the working space.
  • controllable closing element for cleaning the outlet nozzle is automatically triggered by a sensor device.
  • the actuation of the closing element is particularly useful at the start and after completion of a procedure.
  • the automatic triggering can be done, for example, depending on the exceeding of a pressure limit at the outlet nozzle.
  • a linear stroke movement coaxial with the nozzle channel of the outlet nozzle is preferred.
  • the nozzle inlet opening of the outlet nozzle and / or the tip of the closing element are chamfered. This leads to increased reliability.
  • the spraying device comprises a mixing device with an expansion chamber in which hot bitumen fed through a bitumen injector is miscible with water or with water and air to produce foamed bitumen, with foamed bitumen exiting the outlet nozzle.
  • the bitumen injection nozzle for hot bitumen has a controllable valve tappet adapted to the nozzle inlet opening of the bitumen injection nozzle for closing the nozzle inlet opening.
  • the closing element of the closing device is drivable according to a preferred embodiment of a piston-cylinder unit having three switching positions.
  • the piston-cylinder unit has a second piston element, which enables a stroke limitation of the piston element when pressure is applied.
  • Fig. 1 shows a self-propelled device for working lanes with a supported by wheels 2 machine frame 1 and consisting of a cab 3 control station.
  • the wheels 2 may be driven individually and may alternatively be replaced by chain drives.
  • a work roll 4 is arranged in a roll housing 8, which limits the working space 6 of the work roll 4 upwards and to the sides.
  • a detailed description of in Fig. 1 shown road construction machine is the WO-A96 / 24725 refer to.
  • the roller housing 8 has at the top of a spray device 10, with the binder or water with a plurality of preferably juxtaposed outlet nozzles 12 in the working space 6 can be injected.
  • the binder may consist of hydraulic or bituminous binders, and of mixtures of hydraulic binders and water from suspensions, or mixtures of bituminous binders with water from emulsions.
  • foam bitumen can be injected via the outlet nozzles 12, with heated, liquid bitumen mixed with cold water for the production of foamed bitumen becomes. As a result, the bitumen foams up, whereby the original volume of the components increases approximately 20-fold.
  • the Fig. 3a to 3c show a first embodiment in which the spraying device 10 receives the binder or water via a conduit 14, which may be a loop.
  • the binding agent or the water flows transversely to the outlet nozzle 12.
  • the outlet nozzle 12, which is fastened to the line 14, is directed into the working space 6 and arranged in a recess of the roll housing 8 adapted to the outlet nozzle 12.
  • the tools 16 of the work roll have a cutting circle, which may have a relatively small distance from the roll housing 8, for example, about 50 mm.
  • a closing device 18 is provided which consists of a piston-cylinder unit 20 whose piston rod forms or drives a closing element 22 for the outlet nozzle 12.
  • the controllable for example by a control locking device 18 allows three switching positions of the closing element 22.
  • the outlet nozzle and the flow cross-section of the line 14 is released.
  • the outlet nozzle 12 is closed, so that no binder or water at this outlet nozzle 12 exits.
  • no processed material 24 mixed with binders or water can penetrate into the nozzle channel 26 of the outlet nozzle 12.
  • the tip of the closing element 22 facing into the working space 6 terminates at the end of the nozzle channel 26 facing the working space 6 and is set back relative to the lateral surface 9 of the roll housing 8 facing the working space 6 in order to avoid damage to the closing element 22 during operation.
  • Fig. 3c shows the closing element 22 in a third switching position, in which the closing element 22 can eliminate over an additional stroke of the closing element 22 beyond the closed position material accumulations of the processed material 24 in and / or front outlet nozzle 12.
  • the nozzle cross section in the nozzle channel 26 of the outlet nozzle 12 and the cross section of the closing element 22 are adapted to each other and preferably designed circular cylindrical.
  • the fit of the nozzle channel 26 and the closing element 22 is selected such that in the absence of operating pressure in line 14 no binder or water can escape from the outlet nozzle 12.
  • the nozzle inlet opening 28 and / or the tip of the closing element 22 may be chamfered to increase the reliability of the locking device 18.
  • the additional movement stroke is preferably carried out at the beginning of a labor input and / or the end of a labor input.
  • an actuation of the closing element 22 beyond the closed position is not recommended since the closing element 22 can be damaged during operation.
  • the additional lifting movement of the closing element 22 for cleaning the outlet nozzle 12 can also be triggered automatically at the beginning or at the end of a working process or also as a function of a measuring signal of a sensor device which indicates, for example via a pressure monitoring at the outlet nozzle 12, a partial or complete blockage of the outlet nozzle 12 can.
  • the conduit 14 may also be connected to a tank of binder or water.
  • Fig. 4 1 shows an embodiment of a foamed bitumen sprayer 10 with a mixing device 36.
  • the mixing device 36 has an expansion chamber 38 in which hot bitumen fed through a bitumen injector 40 is miscible with water or with water and air to produce foam bitumen.
  • expansion chamber 38 consists of a mixing chamber 42 and an injection chamber 44 connected to the mixing chamber 42, wherein the outlet nozzle 12 and the associated closing device 18 are arranged on the injection chamber 44.
  • the hot bitumen is supplied via a ring line 15, wherein a valve tappet 46 actuated by a controllable drive device can close or release the nozzle inlet opening of the bitumen injection nozzle 40.
  • Water or water and air can be supplied via one or two ports 41 of the mixing chamber 42.
  • the mixing device 36 may be surrounded by a heating device 48, which prevent hardening of the bitumen during operation.
  • the closing element 22 of the closing device 18 traverses the injection chamber 44 for closing or cleaning the outlet nozzle 12.
  • FIG. 5 shown embodiment of the piston-cylinder unit 20 operates without compression spring 34 and has a first piston member 50, at the free end of the closing element 22 is arranged or that drives the closing element 22.
  • a second piston member 52 limits the travel of the first piston member 50 when a substantially higher pressure is applied to the pressure port 54 of the piston-cylinder unit 20 than at the pressure port 56.
  • the closing element 22 When pressure is applied to the pressure port 54, the closing element 22 can be moved into its closed position upon additional pressurization of the pressure port 56 or moved into its open position by pressurizing the pressure port 58.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
  • Soil Working Implements (AREA)
  • Movable Scaffolding (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (12)

  1. Dispositif pour travailler des sols ou des chaussées, comprenant un bâti de machine (1) sur lequel un cylindre de travail (4) est disposé au-dessous d'un carter de cylindre (8) délimitant l'espace de travail (6), un dispositif de pulvérisation (10) pour un liant ou de l'eau étant disposé sur le carter de cylindre (8), le dispositif de pulvérisation comprenant au moins une buse de sortie (12) dirigée vers l'intérieur de l'espace de travail (6), la buse de sortie au moins au nombre de un comprenant un dispositif de fermeture (18) pilotable ayant un élément de fermeture (22) qui, dans une position d'ouverture, libère la buse de sortie (12) et, dans une position de fermeture, ferme la buse de sortie (12),
    caractérisé en ce que
    le dispositif de fermeture (18) permet un mouvement supplémentaire de l'élément de fermeture (22) au-delà de la position de fermeture afin d'éliminer des accumulations de matériau dans et/ou devant la buse de sortie (12) et ainsi le dispositif de fermeture (18) pilotable présente trois positions de commutation de l'élément de fermeture (22) pilotable.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément de fermeture (22) est déplaçable coaxialement par rapport à la buse de sortie (12).
  3. Dispositif selon la revendication 1 ou 2, caractérisé que la section transversale de buse de la buse de sortie (12) et la section transversale de l'élément de fermeture (22) sont adaptées l'une à l'autre et sont de préférence de forme cylindrique circulaire.
  4. Dispositif de pulvérisation selon l'une des revendications 1 à 3, caractérisé en ce que la buse de sortie (12) est raccordée à une conduite annulaire (14) ou à un réservoir.
  5. Dispositif de pulvérisation selon l'une des revendications 1 à 4, caractérisé en ce que la buse de sortie (12) est disposée sur une conduite (14) ou sur une chambre d'injection (44), le liant ou l'eau pouvant être acheminé(e) transversalement par rapport à la buse de sortie (12), l'élément de fermeture (22), pour fermer ou nettoyer la buse de sortie (12), traverse la conduite (14) ou la chambre d'injection (44) pour entrer coaxialement dans la buse de sortie (12), et l'élément de fermeture (22), dans la position d'ouverture, libère essentiellement la totalité de la section transversale de la conduite (14) ou de la chambre d'injection (44).
  6. Dispositif de pulvérisation selon l'une des revendications 1 à 5, caractérisé en ce que l'élément de fermeture (22), dans la position de fermeture, est en retrait par rapport à la surface d'enveloppe (9) du carter de cylindre (8) tournée vers l'espace de travail (6).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le mouvement supplémentaire de l'élément de fermeture (22) pour le nettoyage de la buse de sortie (12) peut être déclenché automatiquement par un dispositif de capteur.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que l'ouverture d'admission de buse (28) de la buse de sortie (12) et/ou la pointe de l'élément de fermeture (22) sont chanfreinées.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le dispositif de pulvérisation (10) comprend un dispositif mélangeur (36) avec une chambre d'expansion (38) dans laquelle du bitume chaud acheminé par le biais d'un injecteur de bitume (40) peut être mélangé avec de l'eau ou avec de l'eau et de l'air pour produire du bitume mousse, le bitume mousse sortant de la buse de sortie (12).
  10. Dispositif selon la revendication 9, caractérisé en ce que la chambre d'expansion (38) se compose d'une chambre de mélange (42) et d'une chambre d'injection (44) raccordée à la chambre de mélange (42), la buse de sortie (12) et le dispositif de fermeture (18) associé étant disposés sur la chambre d'injection (44).
  11. Dispositif selon l'une des revendications 9 ou 10, caractérisé en ce que l'injecteur de bitume (40) pour bitume chaud comprend un poussoir de soupape (46) pilotable, adapté à l'ouverture d'admission de la buse, pour fermer l'ouverture d'admission de la buse.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que l'élément de fermeture (22) du dispositif de fermeture (18) peut être entraîné par une unité piston/cylindre (20) qui présente trois positions de commutation.
EP03018677.9A 2002-09-05 2003-08-22 Dispositif de traitement de sols ou des chaussées Expired - Lifetime EP1396581B3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10241067A DE10241067B3 (de) 2002-09-05 2002-09-05 Vorrichtung zum Bearbeiten von Böden oder Fahrbahnen
DE10241067 2002-09-05

Publications (4)

Publication Number Publication Date
EP1396581A2 EP1396581A2 (fr) 2004-03-10
EP1396581A3 EP1396581A3 (fr) 2004-12-22
EP1396581B1 EP1396581B1 (fr) 2008-10-08
EP1396581B3 true EP1396581B3 (fr) 2016-06-01

Family

ID=31502414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018677.9A Expired - Lifetime EP1396581B3 (fr) 2002-09-05 2003-08-22 Dispositif de traitement de sols ou des chaussées

Country Status (5)

Country Link
US (1) US6887013B2 (fr)
EP (1) EP1396581B3 (fr)
AT (1) ATE410553T1 (fr)
DE (2) DE10241067B3 (fr)
ZA (1) ZA200306918B (fr)

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DE102013016515A1 (de) 2013-10-07 2015-04-09 Wirtgen Gmbh Vorrichtung sowie Verfahren zum Bearbeiten von Böden oder Fahrbahnen
DE102013112972A1 (de) 2013-11-25 2015-05-28 Wirtgen Gmbh Verschleißprognoseverfahren und Wartungsverfahren
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DE102015111249A1 (de) 2015-07-10 2017-01-12 Wirtgen Gmbh Bodenbearbeitungsmaschine und Verfahren zum verschleißoptimierten Betrieb einer Bodenbearbeitungsmaschine
EP3205773B1 (fr) 2016-02-15 2024-05-15 Wirtgen GmbH Système de commande pour l'opération de fraiseuses routières
DE102016222145A1 (de) 2016-11-11 2018-05-17 Wirtgen Gmbh System und Verfahren zum Nachverfolgen von Fräsgut
US10927513B2 (en) 2016-11-11 2021-02-23 Wirtgen Gmbh System and method for the tracking of milling material
DE102016223454A1 (de) 2016-11-25 2018-05-30 Wirtgen Gmbh System und Verfahren zum Nachverfolgen von Fräsgut
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US10406542B1 (en) * 2018-06-01 2019-09-10 Caterpillar Paving Products Inc. Foamed bitumen dispensing device
CN111608050A (zh) * 2020-05-25 2020-09-01 顾世来 一种建筑用沥青浇筑碾压一体机
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DE4302934A1 (de) * 1993-01-29 1994-10-06 Hofmann Walter Maschf Straßenmarkierungs-Spritzpistole für Zweikomponenten-Farben
DE19504495A1 (de) * 1995-02-12 1996-08-22 Wirtgen Gmbh Maschine zur Erneuerung von Fahrbahnen
DE29702162U1 (de) * 1997-02-08 1998-06-10 Wirtgen GmbH, 53578 Windhagen Vorrichtung zum Bearbeiten von Fahrbahnen, sowie Vorrichtung zum Erzeugen von Schaumbitumen

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EP1396581A2 (fr) 2004-03-10
ATE410553T1 (de) 2008-10-15
EP1396581A3 (fr) 2004-12-22
EP1396581B1 (fr) 2008-10-08
US6887013B2 (en) 2005-05-03
DE10241067B3 (de) 2004-04-22
US20040146353A1 (en) 2004-07-29
ZA200306918B (en) 2004-06-17
DE50310599D1 (de) 2008-11-20

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