EP1396581A2 - Apparatus for treating soil or roads - Google Patents

Apparatus for treating soil or roads Download PDF

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Publication number
EP1396581A2
EP1396581A2 EP03018677A EP03018677A EP1396581A2 EP 1396581 A2 EP1396581 A2 EP 1396581A2 EP 03018677 A EP03018677 A EP 03018677A EP 03018677 A EP03018677 A EP 03018677A EP 1396581 A2 EP1396581 A2 EP 1396581A2
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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.)
Granted
Application number
EP03018677A
Other languages
German (de)
French (fr)
Other versions
EP1396581A3 (en
EP1396581B1 (en
EP1396581B3 (en
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
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Filing date
Publication date
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Publication of EP1396581A2 publication Critical patent/EP1396581A2/en
Publication of EP1396581A3 publication Critical patent/EP1396581A3/en
Publication of EP1396581B1 publication Critical patent/EP1396581B1/en
Application granted granted Critical
Publication of EP1396581B3 publication Critical patent/EP1396581B3/en
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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 working floors or roads according to the preamble of claim 1.
  • the known devices for working floors or roads are with a work roll that breaks the ground or the lanes and mixed. In the case of hard road surfaces made of asphalt or concrete these will milled.
  • the work roll is surrounded by a bell-shaped roll housing, which encloses the working space of the work roll, said working space as Mixing room for mixing the reclaimed soil material with hydraulic or bituminous binders or with water.
  • the hydraulic or bituminous Binders or Wassser is attached by means of a roller housing to the Spraying device injected into the working space, with several outlet nozzles the spraying device directed to the roller housing in the working space are arranged.
  • the cutting circle of the tools of the work roll points in Operating a relatively small distance from the roll housing, e.g.
  • a cleaning of the outlet nozzles is due to their inaccessible position in the roll box very difficult and may require the removal of the work roll. Also the expansion of the outlet nozzles from the outside of the roll housing forth is only possible with great effort, since the injectors carrying the injection ramp between the roller housing and the machine frame not or only with difficulty is reachable.
  • the invention is therefore the object of a device for editing of floors and lanes with directed into the working space outlet nozzles a Spray to improve the effect that the cleaning and maintenance be kept to a minimum, excluding accident risks.
  • the invention advantageously provides that the at least one outlet nozzle a controllable closing device having a closing element which in an open position releases the outlet nozzle and in a closed position the outlet nozzle closes.
  • the locking device can provide additional movement of the Trigger closing element beyond the closed position, with the blockages at and / or be eliminated in the outlet nozzle.
  • the outlet nozzle can either be completely released or closed at any time be that during or after a work process no contamination of outside in the outlet nozzle can enter and so to a partial or complete Clogging of the outlet nozzle may result.
  • the closing element of the closing device can be an additional Movement, preferably a lifting movement, beyond the closed position Perform, so that even before the outlet nozzle adhering impurities automatically can be removed.
  • the controllable locking device three selectively controllable positions of the closing element. In this way is ensured that the processed during the mixing process from the Soil or roadway material and the hydraulic or bituminous binders or water-forming mass after cooling or curing or setting can not completely or partially close the outlet nozzles from the outside.
  • the workroom the work roll facing outlet nozzles are therefore always in full Scope ready for use and also can not be characterized by partial obstruction or complete Failure to uneven distribution of hydraulic or bituminous Binder or water.
  • the closed position of the closing element can also be used to the outlet nozzles of the sprayer partly to switch off for quantity control.
  • the closing element is coaxial with the outlet nozzle is movable.
  • 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 doing to all to be sprayed media (binder or water) adjusted so that in the Closed position and no pressurization no medium from the outlet nozzle can escape.
  • the game is sufficiently large so that no jamming of the closing element can also occur at higher operating temperatures.
  • the outlet nozzle may be connected to a loop or to a tank.
  • the closing element traverses the line or injection chamber to close or clean the exit nozzle and is guided coaxially to the outlet nozzle. In the open position gives the closing element the cross section of the line or the injection chamber in essentially completely free. In this case, the hydraulic or bituminous Binder or the water flow freely to the outlet nozzle.
  • a Ring line can be the binder or the water even in the closed position of Close the closing element to these.
  • the closing element in the closed position relative protrudes to the working space facing lateral surface of the roller housing.
  • the closing element In the recessed position of the closing element is the closing element better protected against damage by hard, worn-out material.
  • the front tip of the closing element closes approximately flush with the working space facing the end of the nozzle channel of the outlet nozzle.
  • controllable Closing element for cleaning the outlet nozzle of a sensor device automatically is triggerable.
  • the actuation of the closing element is in particular at Start and after completion of a job sense.
  • the automatic release for example, depending on the overrun a pressure limit at the outlet nozzle done.
  • 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 chilled. This leads to increased reliability.
  • the spray device a mixing device having an expansion chamber, in the over a bitumen injector supplied hot bitumen with water or with water and air is miscible for producing foamed bitumen, wherein foamed bitumen emerges from the outlet nozzle.
  • the Bitumeneinspritzdüse for hot bitumen points one adapted to the nozzle inlet opening of the bitumen injector, controllable Valve tappet for closing the nozzle inlet opening.
  • the closing element of the closing device is according to a preferred embodiment drivable by a piston-cylinder unit, the three switching positions having.
  • the piston-cylinder unit has a second piston element, which allows a stroke limitation of the piston element when pressurized.
  • Fig. 1 shows a self-propelled device for working lanes with a machine frame 1 carried by wheels 2 and one of a driver's cab 3 existing control station.
  • the wheels 2 can be driven individually and also be replaced alternatively by chain drives.
  • the roller housing 8 has at the top of a spray 10, with the binder or water having 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 mixtures of hydraulic binders and water from suspensions, or in mixtures of bituminous binders with water from emulsions.
  • 12 foam bitumen can be injected via the outlet nozzles, wherein the production of foamed bitumen heated, liquid bitumen with cold Water is mixed. As a result, the bitumen foams up, the original Volume of components increased by about 20 times.
  • FIGS. 3a to 3c show a first embodiment in which the spray device 10, the binder or water via a conduit 14, which may be a loop can, get.
  • the binder or the water flows transversely to the outlet nozzle 12.
  • the attached to the line 14 outlet nozzle 12 is directed into the working space 6 and in one of the outlet nozzle 12 adapted recess of the roller housing. 8 arranged.
  • the tools 16 of the work roll have a cutting circle, the one relatively small distance to the roller housing 8, for example, approx. 50 mm, can have.
  • a closing device 18 is provided, which consists of a piston-cylinder unit 20 whose piston rod a Closing element 22 for the outlet nozzle 12 forms or drives.
  • the example Controllable by a controller closing device 18 allows three switching positions of the closing element 22.
  • an open position of the invention shown in FIG Closing element 22 is the outlet nozzle and the flow cross-section of the line 14 released.
  • the closed position shown in Fig. 3b the outlet nozzle 12th closed, so that no binder or water emerges at this outlet nozzle 12.
  • no processed with binders or water can be processed Material 24 in the nozzle channel 26 of the outlet nozzle 12 penetrate.
  • one Ring line is the flow cross-section only slightly reduced, so that a Circulation in the loop can be maintained.
  • the in the workroom 6 facing tip of the closing element 22 terminates at the working space. 6 facing the end of the nozzle channel 26 and is opposite to the working space. 6 facing lateral surface 9 of the roller housing 8 set back to damage to avoid the closing element 22 during operation.
  • Fig. 3c shows the closing element 22 in a third switching position, in which the Closing element 22 via an additional stroke movement of the closing element 22nd beyond the closed position material accumulations of the processed material 24 in and / or in front of the outlet nozzle 12 can eliminate.
  • 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 circular cylindrical designed.
  • the fit of the nozzle channel 26 and the closing element 22 is such chosen that in 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 closure member 22 may be chamfered for operational safety to increase the closing device 18.
  • the piston-cylinder unit 20 of the locking device 18 operates as follows:
  • the additional movement stroke is preferably at the beginning of a labor input and / or executed at the end of a work assignment.
  • During operation of the Machine is recommended to actuate the closing element 22 via the closed position not, since the closure member 22 may be damaged during operation.
  • the additional lifting movement of the closing element 22 for cleaning the outlet nozzle 12 can also be done automatically at the beginning or end of a job be triggered or in response to a measurement signal of a sensor device, For example, via a pressure monitoring at the outlet nozzle 12th may indicate a partial or complete blockage of the exit nozzle 12.
  • the conduit 14 may also be connected to a tank of binder or water be.
  • Fig. 4 shows an embodiment of a spraying device 10 for foam bitumen with a mixing device 36.
  • the mixing device 36 has an expansion chamber 38, in the bitumen injection nozzle 40 via a supplied hot bitumen miscible with water or with water and air to produce foam bitumen is.
  • the expansion chamber 38 shown in FIG. 4 consists of a mixing chamber 42 and an injection chamber 44 connected to the mixing chamber 42, the Exit nozzle 12 and the associated locking device 18 to the injection chamber 44 are arranged.
  • the hot bitumen is supplied via a loop 15, wherein an actuated by a controllable drive means valve tappet 46 close or release the nozzle inlet opening of the bitumen injection nozzle 40 can. Water or water and air can have one or two connections 41 of the mixing chamber 42 are supplied.
  • the mixing device 36 may be surrounded by a heating device 48, which in the Operation to prevent hardening of the bitumen.
  • the closing element 22 of the Closing device 18 passes through for closing or cleaning the outlet nozzle 12, the injection chamber 44th
  • the embodiment of the piston-cylinder unit 20 shown in FIG. 5 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 element 52 limits the movement stroke of the first piston element 50, when to the pressure port 54 of the piston-cylinder unit 20 a essential higher pressure is applied than at the pressure port 56.
  • the closing element 22 at additional pressurization of the pressure port 56 in its closed position be moved or pressurized by the pressure port 58 in his Open position to be moved.

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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)

Abstract

The machine has a frame with working roller below a roller housing (8). This has a spray device (10) for water or binding agent, with a nozzle (12) direction into a working chamber. The nozzle has a controlled closure device (18) with closure element (22), to open and close the nozzle. The closure device can initiate a further movement of the closure element past the closing position, to remove collected material in and/or in front of the nozzle. The nozzle is connected to ring pipe (14) or a tank. The spray device has a mixer unit (36) with expansion chamber (38), and a bitumen injection nozzle (40) to mix hot bitumen with water or with water and air, for ejection of foamed bitumen from the spray nozzle.

Description

Die Erfindung betrifft eine Vorrichtung zum Bearbeiten von Böden oder Fahrbahnen nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for working floors or roads according to the preamble of claim 1.

Der Oberbegriff geht aus von einem Stand der Technik wie er beispielsweise aus der EP 960 239 B1 bekannt ist. Weitere gattungsgemäße Vorrichtungen sind in der DE 42 06 994 A, in der DE 42 37 512 A, in der DE 195 04 495 A und in der US 2,394,017 A beschrieben.The generic term is based on a state of the art such as, for example EP 960 239 B1 is known. Other generic devices are in the DE 42 06 994 A, in DE 42 37 512 A, in DE 195 04 495 A and in the US 2,394,017 A.

Die bekannten Vorrichtungen zum Bearbeiten von Böden oder Fahrbahnen sind mit einer Arbeitswalze versehen, die den Boden oder die Fahrbahnen aufbricht und durchmischt. Im Falle von harten Fahrbahnen aus Asphalt oder Beton werden diese gefräst. Die Arbeitswalze ist von einem glockenförmigen Walzengehäuse umgeben, das den Arbeitsraum der Arbeitswalze umschließt, wobei dieser Arbeitsraum als Mischraum zum Mischen des abgearbeiteten Bodenmaterials mit hydraulischen oder bituminösen Bindemitteln oder mit Wasser dient. Die hydraulischen oder bituminösen Bindemittel bzw. das Wassser wird mit Hilfe einer an dem Walzengehäuse befestigten Sprüheinrichtung in den Arbeitsraum eingespritzt, wobei mehrere Austrittsdüsen der Sprüheinrichtung an dem Walzengehäuse in den Arbeitsraum gerichtet angeordnet sind. Der Schnittkreis der Werkzeuge der Arbeitswalze weist im Betrieb einen relativ geringen Abstand von dem Walzengehäuse, z.B. ca. 50 mm, auf, wobei das abgearbeitete Boden- oder Fahrbahnmaterial aufgrund der Drehbewegung der Arbeitswalze an der Innenseite des Walzengehäuses vorbeigeführt wird. Nachteilig ist dabei, dass das mit Bindemitteln oder Wasser vermischte abgearbeitete Material in die Austrittsdüsen selbst bei einem hohen Sprühdruck hineindrücken kann oder sich im Bereich vor der Austrittsdüse ansammeln kann. Insbesondere nach einem Stillstand der Maschine besteht die Gefahr, dass die Austrittsdüsen durch abgebundenes oder ausgehärtetes oder getrocknetes, abgearbeitetes Material vom Arbeitsraum her verunreinigt und verstopft werden, wodurch die Sprühleistung vermindert wird oder sogar vollständig unterbunden wird.The known devices for working floors or roads are with a work roll that breaks the ground or the lanes and mixed. In the case of hard road surfaces made of asphalt or concrete these will milled. The work roll is surrounded by a bell-shaped roll housing, which encloses the working space of the work roll, said working space as Mixing room for mixing the reclaimed soil material with hydraulic or bituminous binders or with water. The hydraulic or bituminous Binders or Wassser is attached by means of a roller housing to the Spraying device injected into the working space, with several outlet nozzles the spraying device directed to the roller housing in the working space are arranged. The cutting circle of the tools of the work roll points in Operating a relatively small distance from the roll housing, e.g. approximately 50 mm, on, wherein the processed ground or roadway material due to the Rotary movement of the work roll guided past the inside of the roll housing becomes. The disadvantage here is that mixed with binders or water processed material in the outlet nozzles even at a high spray pressure can push in or accumulate in the area in front of the outlet nozzle. In particular, after a standstill of the machine there is a risk that the outlet nozzles by hardened or hardened or dried, finished Material contaminated and clogged from the work area, causing the Spraying is reduced or even completely prevented.

Eine Reinigung der Austrittsdüsen ist aufgrund ihrer unzugänglichen Lage im Walzenkasten sehr schwierig und kann den Ausbau der Arbeitswalze erfordern. Auch der Ausbau der Austrittsdüsen von der Außenseite des Walzengehäuses her ist nur mit hohem Aufwand möglich, da die die Einspritzdüsen tragende Einspritzrampe zwischen dem Walzengehäuse und dem Maschinenrahmen nicht oder nur schwer erreichbar ist.A cleaning of the outlet nozzles is due to their inaccessible position in the roll box very difficult and may require the removal of the work roll. Also the expansion of the outlet nozzles from the outside of the roll housing forth is only possible with great effort, since the injectors carrying the injection ramp between the roller housing and the machine frame not or only with difficulty is reachable.

Bei der Reinigung der Austrittsdüsen im Inneren des Walzengehäuses bestehen Unfallgefahren, z.B. wenn mit offener Flamme erkaltetes Bitumen geschmolzen werden muss. Weitere Gefahren für die Gesundheit bestehen durch die Verwendung von Lösungsmitteln.When cleaning the outlet nozzles in the interior of the roller housing Accident hazards, e.g. when cooled with open flame cooled bitumen must become. Further hazards to health exist through use of solvents.

Der Erfindung liegt daher die Aufgabe zugrunde eine Vorrichtung zum Bearbeiten von Böden und Fahrbahnen mit in den Arbeitsraum gerichteten Austrittsdüsen einer Sprüheinrichtung dahingehend zu verbessern, dass der Reinigungs- und Wartungsaufwand unter Ausschluss von Unfallrisiken auf ein Minimum zu reduziert wird.The invention is therefore the object of a device for editing of floors and lanes with directed into the working space outlet nozzles a Spray to improve the effect that the cleaning and maintenance be kept to a minimum, excluding accident risks.

Zur Lösung dieser Aufgabe dienen die Merkmale des Anspruchs 1.To solve this problem serve the features of claim 1.

Die Erfindung sieht in vorteilhafter Weise vor, dass die mindestens eine Austrittsdüse eine ansteuerbare Schließeinrichtung mit einem Schließelement aufweist, das in einer Offenstellung die Austrittsdüse freigibt und in einer Schließstellung die Austrittsdüse verschließt. Die Schließeinrichtung kann eine zusätzliche Bewegung des Schließelementes über die Schließstellung hinaus auslösen, mit der Verstopfungen an und/oder in der Austrittsdüse beseitigbar sind.The invention advantageously provides that the at least one outlet nozzle a controllable closing device having a closing element which in an open position releases the outlet nozzle and in a closed position the outlet nozzle closes. The locking device can provide additional movement of the Trigger closing element beyond the closed position, with the blockages at and / or be eliminated in the outlet nozzle.

Mit Hilfe der ansteuerbaren Schließeinrichtung kann die Austrittsdüse entweder ganz freigegeben werden oder zu einem beliebigen Zeitpunkt derart verschlossen werden, dass während oder nach einem Arbeitsprozess keine Verunreinigungen von außen in die Austrittsdüse eintreten können und so zu einem teilweisen oder vollständigen Verstopfen der Austrittsdüse führen können.With the help of the controllable closing device, the outlet nozzle can either be completely released or closed at any time be that during or after a work process no contamination of outside in the outlet nozzle can enter and so to a partial or complete Clogging of the outlet nozzle may result.

Besonders vorteilhaft kann das Schließelement der Schließeinrichtung eine zusätzliche Bewegung, vorzugsweise eine Hubbewegung, über die Schließstellung hinaus ausführen, so dass auch vor der Austrittsdüse anhaftende Verunreinigungen automatisch entfernt werden können. Somit weist die ansteuerbare Schließeinrichtung drei wahlweise ansteuerbare Positionen des Schließelementes auf. Auf diese Weise ist sichergestellt, dass die während des Mischprozesses aus dem abgearbeiteten Boden- oder Fahrbahnmaterial und den hydraulischen oder bituminösen Bindemitteln bzw. Wasser entstehende Masse nach dem Erkalten oder Aushärten oder Abbinden nicht die Austrittsdüsen ganz oder teilweise von außen verschließen können.Particularly advantageously, the closing element of the closing device can be an additional Movement, preferably a lifting movement, beyond the closed position Perform, so that even before the outlet nozzle adhering impurities automatically can be removed. Thus, the controllable locking device three selectively controllable positions of the closing element. In this way is ensured that the processed during the mixing process from the Soil or roadway material and the hydraulic or bituminous binders or water-forming mass after cooling or curing or setting can not completely or partially close the outlet nozzles from the outside.

Da die zusätzliche Hubbewegung jederzeit bei Bedarf, d.h. während eines Stillstandes der Arbeitswalze oder insbesondere vor Wiederaufnahme oder nach der Beendigung des Betriebes betätigt werden kann, entfallen aufwändige Reinigungs- und Wartungsarbeiten bei der erneuten Inbetriebnahme der Maschine. Die dem Arbeitsraum der Arbeitswalze zugewandten Austrittsdüsen sind daher stets in vollem Umfang einsatzbereit und können auch nicht durch teilweise Verstopfung oder vollständigen Ausfall zu einer ungleichmäßigen Verteilung der hydraulischen oder bituminösen Bindemittel oder des Wassers führen. Die Schließstellung des Schließelementes kann auch dazu genutzt werden, die Austrittsdüsen der Sprüheinrichtung zum Teil zur Mengensteuerung auszuschalten.Because the additional lifting movement is always available when needed, i. during a standstill the work roll or, in particular, before recovery or after completion Operation can be operated, eliminating complex cleaning and Maintenance work when restarting the machine. The workroom the work roll facing outlet nozzles are therefore always in full Scope ready for use and also can not be characterized by partial obstruction or complete Failure to uneven distribution of hydraulic or bituminous Binder or water. The closed position of the closing element can also be used to the outlet nozzles of the sprayer partly to switch off for quantity control.

Vorzugsweise ist vorgesehen, dass das Schließelement koaxial zur Austrittsdüse bewegbar ist. It is preferably provided that the closing element is coaxial with the outlet nozzle is movable.

Der Düsenquerschnitt der Austrittsdüse und der Querschnitt des Schließelementes sind einander angepasst und vorzugsweise kreiszylindrisch gestaltet. Die Passung zwischen der Bohrung der Austrittsdüse und dem Schließelement ist dabei an alle zu versprühende Medien (Bindemittel oder Wasser) derart angepasst, dass in der Schließstellung und ohne Druckbeaufschlagung kein Medium aus der Austrittsdüse austreten kann. Andererseits ist das Spiel ausreichend groß, so dass kein Verklemmen des Schließelementes auch bei höheren Betriebstemperaturen auftreten kann.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 doing to all to be sprayed media (binder or water) adjusted so that in the Closed position and no pressurization no medium from the outlet nozzle can escape. On the other hand, the game is sufficiently large so that no jamming of the closing element can also occur at higher operating temperatures.

Die Austrittsdüse kann an eine Ringleitung oder an eine Tank angeschlossen sein.The outlet nozzle may be connected to a loop or to a tank.

Insbesondere kann vorgesehen sein, dass die Austrittsdüse an einer Leitung oder an einer Einspritzkammer angeordnet ist, wobei das hydraulische oder bituminöse Bindemittel oder Wasser quer zur Austrittsdüse zuführbar ist. Das Schließelement durchquert zum Schließen oder Reinigen der Austrittsdüse die Leitung oder die Einspritzkammer und wird koaxial zu der Austrittsdüse geführt. In der Offenstellung gibt das Schließelement den Querschnitt der Leitung bzw. der Einspritzkammer im wesentlichen vollständig frei. In diesem Fall kann das hydraulische oder bituminöse Bindemittel bzw. das Wasser ungehindert zur Austrittsdüse strömen. Im Falle einer Ringleitung kann das Bindemittel oder das Wasser auch in der Schließstellung des Schließelementes an diesen vorbeiströmen.In particular, it can be provided that the outlet nozzle on a line or is arranged 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 injection chamber to close or clean the exit nozzle and is guided coaxially to the outlet nozzle. In the open position gives the closing element the cross section of the line or the injection chamber in essentially completely free. In this case, the hydraulic or bituminous Binder or the water flow freely to the outlet nozzle. In case of a Ring line can be the binder or the water even in the closed position of Close the closing element to these.

Vorzugsweise ist vorgesehen, dass das Schließelement in der Schließstellung relativ zu der dem Arbeitsraum zugewandten Mantelfläche des Walzengehäuses zurücksteht. In der zurückversetzten Lage des Schließelementes ist das Schließelement besser gegen Beschädigung durch hartes, abgearbeitetes Material geschützt. Die vordere Spitze des Schließelementes schließt dabei in etwa bündig mit dem den Arbeitsraum zugewandten Ende des Düsenkanals der Austrittsdüse ab.It is preferably provided that the closing element in the closed position relative protrudes to the working space facing lateral surface of the roller housing. In the recessed position of the closing element is the closing element better protected against damage by hard, worn-out material. The front tip of the closing element closes approximately flush with the working space facing the end of the nozzle channel of the outlet nozzle.

Es kann vorgesehen sein, dass die zusätzliche Bewegung des ansteuerbaren Schließelementes zum Reinigen der Austrittsdüse von einer Sensoreinrichtung automatisch auslösbar ist. Die Betätigung des Schließelementes ist insbesondere beim Start und nach Beendigung eines Arbeitsvorganges sinnvoll. It can be provided that the additional movement of the controllable Closing element for cleaning the outlet nozzle of a sensor device automatically is triggerable. The actuation of the closing element is in particular at Start and after completion of a job sense.

Die automatische Auslösung kann beispielsweise in Abhängigkeit der Überschreitung eines Druckgrenzwertes an der Austrittsdüse erfolgen. Eine lineare Hubbewegung koaxial zum Düsenkanal der Austrittsdüse wird bevorzugt.The automatic release, for example, depending on the overrun a pressure limit at the outlet nozzle done. A linear stroke movement coaxial with the nozzle channel of the outlet nozzle is preferred.

Die Düseneintrittsöffnung der Austrittsdüse und/oder die Spitze des Schließelementes sind angefast. Dies führt zu einer erhöhten Betriebssicherheit.The nozzle inlet opening of the outlet nozzle and / or the tip of the closing element are chilled. This leads to increased reliability.

Bei einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass die Sprüheinrichtung eine Mischeinrichtung mit einer Expansionskammer aufweist, in der über eine Bitumeneinspritzdüse zugeführtes heißes Bitumen mit Wasser oder mit Wasser und Luft zum Erzeugen von Schaumbitumen mischbar ist, wobei Schaumbitumen aus der Austrittsdüse austritt. Die Bitumeneinspritzdüse für heißes Bitumen weist einen an die Düseneintrittsöffnung der Bitumeneinspritzdüse angepassten, ansteuerbaren Ventilstößel zum Verschließen der Düseneintrittsöffnung auf.In one embodiment of the invention it is provided that the spray device a mixing device having an expansion chamber, in the over a bitumen injector supplied hot bitumen with water or with water and air is miscible for producing foamed bitumen, wherein foamed bitumen emerges from the outlet nozzle. The Bitumeneinspritzdüse for hot bitumen points one adapted to the nozzle inlet opening of the bitumen injector, controllable Valve tappet for closing the nozzle inlet opening.

Das Schließelement der Schließeinrichtung ist nach einem bevorzugten Ausführungsbeispiel von einer Kolben-Zylindereinheit antreibbar, die drei Schaltstellungen aufweist. Hierzu weist die Kolben-Zylindereinheit ein zweites Kolbenelement auf, das bei Druckbeaufschlagung eine Hubbegrenzung des Kolbenelementes ermöglicht.The closing element of the closing device is according to a preferred embodiment drivable by a piston-cylinder unit, the three switching positions having. For this purpose, the piston-cylinder unit has a second piston element, which allows a stroke limitation of the piston element when pressurized.

Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.Further advantageous features can be found in the dependent claims.

Im folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert:In the following, with reference to the drawings, embodiments the invention explained in more detail:

Es zeigen:

Fig. 1
eine Straßenbaumaschine,
Fig. 2
den Arbeitsraum einer Arbeitswalze unter einem Walzengehäuse mit Sprüheinrichtung,
Fign. 3a bis 3c
eine Austrittsdüse der Sprüheinrichtung in drei unterschiedlichen Schaltstellungen,
Fig. 4
ein Ausführungsbeispiel einer Austrittsdüse für Schaumbitumen, und
Fig. 5
eine alternative Antriebseinrichtung für das Schließelement an der Sprüheinrichtung.
Show it:
Fig. 1
a road construction machine,
Fig. 2
the working space of a work roll under a roll housing with spraying device,
FIGS. 3a to 3c
an outlet nozzle of the spraying device in three different switching positions,
Fig. 4
an embodiment of an outlet nozzle for foam bitumen, and
Fig. 5
an alternative drive device for the closing element on the spray device.

Fig. 1 zeigt eine selbstfahrende Vorrichtung zum Bearbeiten von Fahrbahnen mit einem von Rädern 2 getragenen Maschinenrahmen 1 und einem aus einer Fahrerkabine 3 bestehenden Fahrstand. Die Räder 2 können einzeln angetrieben sein und auch alternativ durch Kettenlaufwerke ersetzt sein.Fig. 1 shows a self-propelled device for working lanes with a machine frame 1 carried by wheels 2 and one of a driver's cab 3 existing control station. The wheels 2 can be driven individually and also be replaced alternatively by chain drives.

Unterhalb des Maschinenrahmens 1 ist eine Arbeitswalze 4 in einem Walzengehäuse 8 angeordnet, die den Arbeitsraum 6 der Arbeitswalze 4 nach oben und zu den Seiten hin begrenzt. Eine detaillierte Beschreibung der in Fig. 1 gezeigten Straßenbaumaschine ist der WO-A96/24725 zu entnehmen.Below the machine frame 1 is a work roll 4 in a roll housing 8 arranged, the working space 6 of the work roll 4 upwards and to the Limited sides. A detailed description of the road construction machine shown in FIG can be found in WO-A96 / 24725.

Das Walzengehäuse 8 weist im oberen Bereich eine Sprüheinrichtung 10 auf, mit der Bindemittel oder Wasser mit mehreren vorzugsweise nebeneinander angeordneten Austrittsdüsen 12 in den Arbeitsraum 6 einspritzbar ist.The roller housing 8 has at the top of a spray 10, with the binder or water having a plurality of preferably juxtaposed Outlet nozzles 12 in the working space 6 can be injected.

Das Bindemittel kann aus hydraulischen oder bituminösen Bindemitteln bestehen, und bei Mischungen aus hydraulischen Bindemitteln und Wasser aus Suspensionen, bzw. bei Mischungen von bituminösen Bindemitteln mit Wasser aus Emulsionen. Desweiteren kann über die Austrittsdüsen 12 Schaumbitumen eingespritzt werden, wobei zur Herstellung von Schaumbitumen erhitztes, flüssiges Bitumen mit kaltem Wasser vermischt wird. Dadurch schäumt das Bitumen auf, wobei das ursprüngliche Volumen der Komponenten sich um etwa das 20-fache erhöht.The binder may consist of hydraulic or bituminous binders, and mixtures of hydraulic binders and water from suspensions, or in mixtures of bituminous binders with water from emulsions. Furthermore, 12 foam bitumen can be injected via the outlet nozzles, wherein the production of foamed bitumen heated, liquid bitumen with cold Water is mixed. As a result, the bitumen foams up, the original Volume of components increased by about 20 times.

Die Fig. 3a bis 3c zeigen ein erstes Ausführungsbeispiel, bei dem die Sprüheinrichtung 10 das Bindemittel oder Wasser über eine Leitung 14, die eine Ringleitung sein kann, erhält. Das Bindemittel bzw. das Wasser strömt quer zur Austrittsdüse 12. Die an der Leitung 14 befestigte Austrittsdüse 12 ist in den Arbeitsraum 6 gerichtet und in einer der Austrittsdüse 12 angepassten Aussparung des Walzengehäuses 8 angeordnet. Die Werkzeuge 16 der Arbeitswalze haben einen Schnittkreis, der einen verhältnismäßig geringen Abstand zu dem Walzengehäuse 8, von beispielsweise ca. 50 mm, haben können. Zu jeder Austrittdüse 12 ist eine Schließeinrichtung 18 vorgesehen, die aus einer Kolben-Zylindereinheit 20 besteht, deren Kolbenstange ein Schließelement 22 für die Austrittsdüse 12 bildet oder antreibt. Die beispielsweise von einer Steuerung ansteuerbare Schließeinrichtung 18 erlaubt drei Schaltstellungen des Schließelementes 22. In einer in Fig. 3a gezeigten Offenstellung des Schließelementes 22 ist die Austrittsdüse und der Strömungsquerschnitt der Leitung 14 freigegeben. In der in Fig. 3b gezeigten Schließstellung ist die Austrittsdüse 12 verschlossen, so dass kein Bindemittel oder Wasser an dieser Austrittsdüse 12 austritt. Außerdem kann kein mit Bindemitteln oder Wasser vermischtes abgearbeitetes Material 24 in den Düsenkanal 26 der Austrittsdüse 12 eindringen. Im Fall einer Ringleitung ist deren Strömungsquerschnitt nur geringfügig verringert, so dass eine Zirkulation in der Ringleitung aufrechterhalten bleiben kann. Die in den Arbeitsraum 6 zugewandte Spitze des Schließelementes 22 endet an dem dem Arbeitsraum 6 zugewandten Ende des Düsenkanals 26 und ist gegenüber der dem Arbeitsraum 6 zugewandten Mantelfläche 9 des Walzengehäuses 8 zurückversetzt, um Beschädigungen des Schließelementes 22 im Betrieb zu vermeiden.FIGS. 3a to 3c show a first embodiment in which the spray device 10, the binder or water via a conduit 14, which may be a loop can, get. The binder or the water flows transversely to the outlet nozzle 12. The attached to the line 14 outlet nozzle 12 is directed into the working space 6 and in one of the outlet nozzle 12 adapted recess of the roller housing. 8 arranged. The tools 16 of the work roll have a cutting circle, the one relatively small distance to the roller housing 8, for example, approx. 50 mm, can have. For each outlet nozzle 12, a closing device 18 is provided, which consists of a piston-cylinder unit 20 whose piston rod a Closing element 22 for the outlet nozzle 12 forms or drives. The example Controllable by a controller closing device 18 allows three switching positions of the closing element 22. In an open position of the invention shown in FIG Closing element 22 is the outlet nozzle and the flow cross-section of the line 14 released. In the closed position shown in Fig. 3b, the outlet nozzle 12th closed, so that no binder or water emerges at this outlet nozzle 12. In addition, no processed with binders or water can be processed Material 24 in the nozzle channel 26 of the outlet nozzle 12 penetrate. In the case of one Ring line is the flow cross-section only slightly reduced, so that a Circulation in the loop can be maintained. The in the workroom 6 facing tip of the closing element 22 terminates at the working space. 6 facing the end of the nozzle channel 26 and is opposite to the working space. 6 facing lateral surface 9 of the roller housing 8 set back to damage to avoid the closing element 22 during operation.

Fig. 3c zeigt das Schließelement 22 in einer dritten Schaltstellung, in der das Schließelement 22 über eine zusätzliche Hubbewegung des Schließelementes 22 über die Schließstellung hinaus Materialanhäufungen des abgearbeiteten Materials 24 in und/oder vor der Austrittsdüse 12 beseitigen kann.Fig. 3c shows the closing element 22 in a third switching position, in which the Closing element 22 via an additional stroke movement of the closing element 22nd beyond the closed position material accumulations of the processed material 24 in and / or in front of the outlet nozzle 12 can eliminate.

Der Düsenquerschnitt im Düsenkanal 26 der Austrittsdüse 12 und der Querschnitt des Schließelementes 22 sind einander angepasst und vorzugsweise kreiszylindrisch gestaltet. Die Passung des Düsenkanals 26 und des Schließelementes 22 ist derart gewählt, dass bei fehlendem Betriebsdruck in Leitung 14 kein Bindemittel oder Wasser aus der Austrittsdüse 12 austreten kann. Die Düseneintrittsöffnung 28 und/oder die Spitze des Schließelementes 22 können angefast sein, um die Betriebssicherheit der Schließeinrichtung 18 zu erhöhen.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 circular cylindrical designed. The fit of the nozzle channel 26 and the closing element 22 is such chosen that in 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 closure member 22 may be chamfered for operational safety to increase the closing device 18.

Die Kolben-Zylindereinheit 20 der Schließeinrichtung 18 arbeitet wie folgt: The piston-cylinder unit 20 of the locking device 18 operates as follows:

Bei Druckbeaufschlagung des Druckanschlusses 30 der Kolben-Zylindereinheit 20 befindet sich das Schließelement in der Offenstellung, wie in Fig. 3a gezeigt. Bei Druckbeaufschlagung des Druckanschlusses 32 befindet sich das Schließelement 22 in der in Fig. 3b gezeigten Schließstellung. Zur Auslösung der zusätzlichen Hubbewegung des Schließelementes 22 wird an dem Druckanschluss 32 ein erheblich höherer Druck angelegt, so dass das Kolbenelement der Kolben-Zylindereinheit eine Druckfeder 34 im Zylinder der Kolben-Zylindereinheit 20 komprimiert und dadurch einen zusätzlichen Hub von z.B. 20 mm ermöglicht.When pressurizing the pressure port 30 of the piston-cylinder unit 20th is the closing element in the open position, as shown in Fig. 3a. at Pressurization of the pressure port 32 is the closing element 22nd in the closed position shown in Fig. 3b. For triggering the additional stroke movement the closing element 22 is at the pressure port 32 a considerably higher Pressure applied, so that the piston element of the piston-cylinder unit a Compressing spring 34 in the cylinder of the piston-cylinder unit 20 compressed and thereby an additional stroke of e.g. 20 mm possible.

Der zusätzliche Bewegungshub wird vorzugsweise zu Beginn eines Arbeitseinsatzes und/oder zum Ende eines Arbeitseinsatzes ausgeführt. Während des Betriebs der Maschine empfiehlt sich eine Betätigung des Schließelementes 22 über die Schließstellung hinaus nicht, da das Schließelement 22 im Betrieb beschädigt werden kann.The additional movement stroke is preferably at the beginning of a labor input and / or executed at the end of a work assignment. During operation of the Machine is recommended to actuate the closing element 22 via the closed position not, since the closure member 22 may be damaged during operation.

Die zusätzliche Hubbewegung des Schließelementes 22 zum Reinigen der Austrittsdüse 12 kann auch zu Beginn oder zum Ende eines Arbeitsvorganges automatisch ausgelöst werden oder auch in Abhängigkeit eines Messsignals einer Sensoreinrichtung, die beispielsweise über eine Drucküberwachung an der Austrittsdüse 12 eine teilweise oder vollständige Verstopfung der Austrittsdüse 12 anzeigen kann.The additional lifting movement of the closing element 22 for cleaning the outlet nozzle 12 can also be done automatically at the beginning or end of a job be triggered or in response to a measurement signal of a sensor device, For example, via a pressure monitoring at the outlet nozzle 12th may indicate a partial or complete blockage of the exit nozzle 12.

Die Leitung 14 kann auch mit einem Tank mit Bindemittel oder Wasser verbunden sein.The conduit 14 may also be connected to a tank of binder or water be.

Fig. 4 zeigt ein Ausführungsbeispiel einer Sprüheinrichtung 10 für Schaumbitumen mit einer Mischeinrichtung 36. Die Mischeinrichtung 36 weist eine Expansionskammer 38 auf, in der über eine Bitumeneinspritzdüse 40 zugeführtes heißes Bitumen mit Wasser oder mit Wasser und Luft zum Erzeugen von Schaumbitumen mischbar ist. Die in Fig. 4 zeigte Expansionskammer 38 besteht aus einer Mischkammer 42 und einer mit der Mischkammer 42 verbundenen Einspritzkammer 44, wobei die Austrittsdüse 12 und die dazugehörige Schließeinrichtung 18 an der Einspritzkammer 44 angeordnet sind. Das heiße Bitumen wird über eine Ringleitung 15 zugeführt, wobei ein von einer ansteuerbaren Antriebseinrichtung betätigter Ventilstößel 46 die Düseneintrittsöffnung der Bitumeneinspritzdüse 40 verschließen oder freigeben kann. Wasser oder Wasser und Luft können über einen oder zwei Anschlüsse 41 der Mischkammer 42 zugeführt werden.Fig. 4 shows an embodiment of a spraying device 10 for foam bitumen with a mixing device 36. The mixing device 36 has an expansion chamber 38, in the bitumen injection nozzle 40 via a supplied hot bitumen miscible with water or with water and air to produce foam bitumen is. The expansion chamber 38 shown in FIG. 4 consists of a mixing chamber 42 and an injection chamber 44 connected to the mixing chamber 42, the Exit nozzle 12 and the associated locking device 18 to the injection chamber 44 are arranged. The hot bitumen is supplied via a loop 15, wherein an actuated by a controllable drive means valve tappet 46 close or release the nozzle inlet opening of the bitumen injection nozzle 40 can. Water or water and air can have one or two connections 41 of the mixing chamber 42 are supplied.

Die Mischeinrichtung 36 kann von einer Heizeinrichtung 48 umgeben sein, die im Betrieb ein Aushärten des Bitumens verhindern. Das Schließelement 22 der Schließeinrichtung 18 durchquert zum Verschließen oder Reinigen der Austrittsdüse 12 die Einspritzkammer 44.The mixing device 36 may be surrounded by a heating device 48, which in the Operation to prevent hardening of the bitumen. The closing element 22 of the Closing device 18 passes through for closing or cleaning the outlet nozzle 12, the injection chamber 44th

Das in Fig. 5 gezeigte Ausführungsbeispiel der Kolben-Zylindereinheit 20 arbeitet ohne Druckfeder 34 und weist ein erstes Kolbenelement 50 auf, an dessen freiem Ende das Schließelement 22 angeordnet ist oder, das das Schließelement 22 antreibt.The embodiment of the piston-cylinder unit 20 shown in FIG. 5 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.

Ein zweites Kolbenelement 52 begrenzt den Bewegungshub des ersten Kolbenelementes 50, wenn an den Druckanschluss 54 der Kolben-Zylindereinheit 20 ein wesentlich höherer Druck angelegt wird als an dem Druckanschluss 56. Die Arbeitsweise dieser Kolben-Zylindereinheit ergibt sich demzufolge wie folgt:A second piston element 52 limits the movement stroke of the first piston element 50, when to the pressure port 54 of the piston-cylinder unit 20 a essential higher pressure is applied than at the pressure port 56. The operation This piston-cylinder unit thus results as follows:

Bei Druckbeaufschlagung des Druckanschlusses 54 kann das Schließelement 22 bei zusätzlicher Druckbeaufschlagung des Druckanschlusses 56 in seine Schließstellung bewegt werden oder durch Druckbeaufschlagung des Druckanschlusses 58 in seine Offenstellung bewegt werden.When pressure is applied to the pressure port 54, the closing element 22 at additional pressurization of the pressure port 56 in its closed position be moved or pressurized by the pressure port 58 in his Open position to be moved.

Bei Druckbeaufschlagung des Druckanschlusses 56 bei gleichzeitiger Druckentlastung des Druckanschlusses 54 kann das Schließelement 22 über die Schließstellung hinaus den Reinigungshub ausführen, mit dem in oder vor der Austrittsdüse 12 angesammeltes Material entfernt werden kann.When pressurizing the pressure port 56 with simultaneous pressure relief the pressure port 54, the closing element 22 via the closed position In addition to perform the cleaning stroke, with the accumulated in or in front of the outlet nozzle 12 Material can be removed.

Claims (12)

Vorrichtung zum Bearbeiten von Böden oder Fahrbahnen, mit einem Maschinenrahmen (1), an dem eine Arbeitswalze (4) unter einem den Arbeitsraum (6) begrenzenden Walzengehäuse (8) angeordnet ist, wobei an dem Walzengehäuse (8) eine Sprüheinrichtung (10) für ein Bindemittel oder Wasser mit mindestens einer in den Arbeitsraum (6) gerichteten Austrittsdüse (12) angeordnet ist ,
dadurch gekennzeichnet, dass die mindestens eine Austrittsdüse eine ansteuerbare Schließeinrichtung (18) mit einem Schließelement (22) aufweist, das in einer Offenstellung die Austrittsdüse (12) freigibt und in einer Schließstellung die Austrittsdüse (12) verschließt, und
dass die Schließeinrichtung (18) eine zusätzliche Bewegung des Schließelementes (22) über die Schließstellung hinaus auslösen kann, mit der Materialanhäufungen in und/oder vor der Austrittsdüse (12) beseitigbar sind.Apparatus for processing floors or roadways, comprising a machine frame (1) on which a work roll (4) is arranged under a roller housing (8) delimiting the working space (6), wherein a spray device (10) for the roller housing (8) a binder or water is arranged with at least one outlet nozzle (12) directed into the working space (6),
characterized in that the at least one outlet nozzle has a controllable closing device (18) with a closing element (22) which releases the outlet nozzle (12) in an open position and closes the outlet nozzle (12) in a closed position, and
in that the closing device (18) can trigger an additional movement of the closing element (22) beyond the closed position, with which material accumulations in and / or in front of the outlet nozzle (12) can be eliminated. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Schließelement (22) koaxial zur Austrittsdüse (12) bewegbar ist.Apparatus according to claim 1, characterized in that the closing element (22) coaxially with the outlet nozzle (12) is movable. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Düsenquerschnitt der Austrittsdüse (12) und der Querschnitt des Schließelementes (22) einander angepasst sind und vorzugsweise kreiszylindrisch gestaltet sind.Apparatus according to claim 1 or 2, characterized in that the nozzle cross section of the outlet nozzle (12) and the cross section of the closing element (22) are adapted to each other and are preferably designed circular-cylindrical. Sprüheinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Austrittsdüse (12) an eine Ringleitung (14) oder an einen Tank angeschlossen ist.Spraying device according to one of claims 1 to 3, characterized in that the outlet nozzle (12) is connected to a ring line (14) or to a tank. Sprüheinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Austrittsdüse (12) an einer Leitung (14) oder an einer Einspritzkammer (44) angeordnet ist, wobei das Bindemittel oder Wasser quer zur Austrittsdüse (12) zuführbar ist, dass das Schließelement (22) zum Schließen oder Reinigen der Austrittsdüse (12) die Leitung (14) oder Einspritzkammer (44) zum koaxialen Eintritt in die Austrittsdüse (12) durchquert, und dass das Schließelement (22) in der Offenstellung den Querschnitt der Leitung (14) oder der Einspritzkammer (44) im wesentlichen vollständig freigibt.Spraying device according to one of claims 1 to 4, characterized in that the outlet nozzle (12) is arranged on a line (14) or on an injection chamber (44), wherein the binder or water can be fed transversely to the outlet nozzle (12) Closing element (22) for closing or cleaning the outlet nozzle (12) the conduit (14) or injection chamber (44) for coaxial entry into the outlet nozzle (12) traverses, and in that the closing element (22) in the open position, the cross section of the conduit (14 ) or the injection chamber (44) substantially completely releases. Sprüheinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Schließelement (22) in der Schließstellung relativ zu der dem Arbeitsraum (6) zugewandten Mantelfläche (9) des Walzengehäuses (8) zurücksteht.Spraying device according to one of claims 1 to 5, characterized in that the closing element (22) in the closed position relative to the working space (6) facing lateral surface (9) of the roller housing (8) protrudes. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die zusätzliche Bewegung des Schließelementes (22) zum Reinigen der Austrittsdüse (12) von einer Sensoreinrichtung automatisch auslösbar ist.Device according to one of claims 1 to 6, characterized in that the additional movement of the closing element (22) for cleaning the outlet nozzle (12) is automatically triggered by a sensor device. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Düseneintrittsöffnung (28) der Austrittsdüse (12) und/oder die Spitze des Schließelementes (22) angefast sind.Device according to one of claims 1 to 7, characterized in that the nozzle inlet opening (28) of the outlet nozzle (12) and / or the tip of the closing element (22) are chamfered. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Sprüheinrichtung (10) eine Mischeinrichtung (36) mit einer Expansionskammer (38) aufweist, in der über eine Bitumeneinspritzdüse (40) zugeführtes heißes Bitumen mit Wasser oder mit Wasser und Luft zum Erzeugen von Schaumbitumen mischbar ist, wobei Schaumbitumen aus der Austrittsdüse (12) austritt.Device according to one of claims 1 to 8, characterized in that the spraying device (10) comprises a mixing device (36) with an expansion chamber (38) in the hot bitumen supplied via a bitumen injection nozzle (40) with water or with water and air Producing foam bitumen is miscible, wherein foam bitumen from the outlet nozzle (12) emerges. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Expansionskammer (38) aus einer Mischkammer (42) und einer mit der Mischkammer (42) verbundenen Einspritzkammer (44) besteht, wobei die Austrittsdüse (12) und die dazugehörige Schließeinrichtung (18) an der Einspritzkammer (44) angeordnet sind. Apparatus according to claim 9, characterized in that the 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) on the Injection chamber (44) are arranged. Vorrichtung nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, dass die Bitumeneinspritzdüse (40) für heißes Bitumen einen an die Düseneintrittsöffnung angepassten, ansteuerbaren Ventilstößel (46) zum Verschließen der Düseneintrittsöffnung aufweist.Device according to one of claims 9 or 10, characterized in that the bitumen injection nozzle (40) for hot bitumen has a adapted to the nozzle inlet opening, controllable valve stem (46) for closing the nozzle inlet opening. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Schließelement (22) der Schließeinrichtung (18) von einer Kolben-/Zylindereinheit (20) antreibbar ist, die drei Schaltstellungen aufweist.Device according to one of claims 1 to 11, characterized in that the closing element (22) of the closing device (18) by a piston / cylinder unit (20) can be driven, which has three switching positions.
EP03018677.9A 2002-09-05 2003-08-22 Apparatus for treating soil or roads Expired - Lifetime EP1396581B3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10241067A DE10241067B3 (en) 2002-09-05 2002-09-05 Device for working floors or roadways
DE10241067 2002-09-05

Publications (4)

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

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EP03018677.9A Expired - Lifetime EP1396581B3 (en) 2002-09-05 2003-08-22 Apparatus for treating soil or roads

Country Status (5)

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US (1) US6887013B2 (en)
EP (1) EP1396581B3 (en)
AT (1) ATE410553T1 (en)
DE (2) DE10241067B3 (en)
ZA (1) ZA200306918B (en)

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CN101886366A (en) * 2010-07-09 2010-11-17 高云 Shotcrete machine
EP2508676A1 (en) * 2011-04-06 2012-10-10 Wirtgen GmbH Milling housing for a working drum of a construction machine or excavation machine, construction machine or excavation machine and method for monitoring the condition of a working drum of a construction machine or excavation machine
EP2857108A1 (en) 2013-10-07 2015-04-08 Wirtgen GmbH Device and method for machining soil or roadways
CN105544363A (en) * 2014-10-21 2016-05-04 宝马格有限公司 Fluid delivery device, injection device, ground milling machine, and method
US10287882B2 (en) 2015-07-10 2019-05-14 Wirtgen Gmbh Earth working machine and method for wear-optimized operation of an earth working machine
US10416056B2 (en) 2013-11-25 2019-09-17 Wirtgen Gmbh Wear prognosis method and maintenance method
CN111608050A (en) * 2020-05-25 2020-09-01 顾世来 Asphalt pouring and rolling all-in-one machine for building
US10794010B2 (en) 2016-02-15 2020-10-06 Wirtgen Gmbh Planning system and method for coordinating road milling tasks
US11519141B2 (en) 2008-09-03 2022-12-06 Wirtgen Gmbh Method for determining the wear state

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US7179018B2 (en) * 2004-12-13 2007-02-20 Hall David R Apparatus and method for working asphalt pavement
US7712996B2 (en) * 2006-07-14 2010-05-11 Hall David R Fogging system for an asphalt recycling machine
DE102006062129B4 (en) 2006-12-22 2010-08-05 Wirtgen Gmbh Road construction machine and method for measuring the cutting depth
DE102009008884A1 (en) * 2009-02-14 2010-08-26 Wirtgen Gmbh Stabilizer or recycler
DE102010013982A1 (en) 2010-04-06 2011-10-06 Bomag Gmbh Apparatus for producing foam bitumen and method for its maintenance
DE102010014904A1 (en) 2010-04-14 2011-10-20 Bomag Gmbh Spraying device for a construction machine and method for operating a spraying device
DE102010035129A1 (en) 2010-08-23 2012-02-23 Bomag Gmbh Spraying device for a soil cultivation excavator, construction machine with a spraying device and method for operating a spraying device
DE102010051551A1 (en) 2010-11-18 2012-05-24 Wirtgen Gmbh Soil cultivation machine and method for milling floors or traffic areas
US9011039B2 (en) * 2011-03-24 2015-04-21 Rm Equipment, Llc Apparatuses for servicing roadways
DE102011115325A1 (en) 2011-10-07 2013-04-11 Bomag Gmbh Rotor housing for a tiller for soil preparation, milling device and method for cleaning a rotor housing
DE102012216262B3 (en) 2012-09-13 2013-10-17 Wirtgen Gmbh Roll housing for a work roll of a construction machine or mining machine, construction machine or mining machine, and method for monitoring the condition of a work roll of a construction machine or mining machine
CN103806363A (en) * 2012-11-09 2014-05-21 同济大学 Efficient foamed asphalt foaming device
DE102016222145A1 (en) 2016-11-11 2018-05-17 Wirtgen Gmbh System and method for tracking milled material
US10927513B2 (en) 2016-11-11 2021-02-23 Wirtgen Gmbh System and method for the tracking of milling material
DE102016223454A1 (en) 2016-11-25 2018-05-30 Wirtgen Gmbh System and method for tracking milled material
US10407841B2 (en) * 2017-10-25 2019-09-10 Caterpillar Paving Products Inc. Rotary mixing system
US10406542B1 (en) * 2018-06-01 2019-09-10 Caterpillar Paving Products Inc. Foamed bitumen dispensing device
US11408136B1 (en) * 2021-03-18 2022-08-09 Caterpillar Paving Products Inc. Machine and method of resisting debris accumulation on milling enclosure of machine

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US2394017A (en) 1942-03-16 1946-02-05 Harry J Seaman Road building machine
DE4206994A1 (en) 1992-03-05 1993-09-09 Georg Dipl Ing Schmitt Equipment for stabilising damaged road surfaces - mills off damaged surface, reduces it to small particles, mixes it with hydraulic binder and water, smooths it and compresses it to form new surface
DE4237512A1 (en) 1992-11-08 1994-05-11 Wirtgen Gmbh Method and device for repairing damaged lanes
DE19504495A1 (en) 1995-02-12 1996-08-22 Wirtgen Gmbh Road surface renewal machine
EP0960239B1 (en) 1997-02-08 2002-02-06 WIRTGEN GmbH Device for paving roadways

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US2394017A (en) 1942-03-16 1946-02-05 Harry J Seaman Road building machine
DE4206994A1 (en) 1992-03-05 1993-09-09 Georg Dipl Ing Schmitt Equipment for stabilising damaged road surfaces - mills off damaged surface, reduces it to small particles, mixes it with hydraulic binder and water, smooths it and compresses it to form new surface
DE4237512A1 (en) 1992-11-08 1994-05-11 Wirtgen Gmbh Method and device for repairing damaged lanes
DE19504495A1 (en) 1995-02-12 1996-08-22 Wirtgen Gmbh Road surface renewal machine
EP0960239B1 (en) 1997-02-08 2002-02-06 WIRTGEN GmbH Device for paving roadways

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11519141B2 (en) 2008-09-03 2022-12-06 Wirtgen Gmbh Method for determining the wear state
CN101886366A (en) * 2010-07-09 2010-11-17 高云 Shotcrete machine
EP2508676A1 (en) * 2011-04-06 2012-10-10 Wirtgen GmbH Milling housing for a working drum of a construction machine or excavation machine, construction machine or excavation machine and method for monitoring the condition of a working drum of a construction machine or excavation machine
US10408056B2 (en) 2011-04-06 2019-09-10 Wirtgen Gmbh Drum housing for a working drum of a construction machine or mining machine, construction machine or mining machine, as well as method for monitoring the condition of a working drum of a construction machine or mining machine
EP2857108A1 (en) 2013-10-07 2015-04-08 Wirtgen GmbH Device and method for machining soil or roadways
DE102013016515A1 (en) 2013-10-07 2015-04-09 Wirtgen Gmbh Device and method for working floors or roads
US9376774B2 (en) 2013-10-07 2016-06-28 Wirtgen Gmbh Device, as well as method for working ground surfaces or roadways
US9598825B2 (en) 2013-10-07 2017-03-21 Wirtgen Gmbh Device, as well as method for working ground surfaces or roadways
US10066347B2 (en) 2013-10-07 2018-09-04 Wirtgen Gmbh Device, as well as method for working ground surfaces or roadways
US10416056B2 (en) 2013-11-25 2019-09-17 Wirtgen Gmbh Wear prognosis method and maintenance method
US11506585B2 (en) 2013-11-25 2022-11-22 Wirtgen Gmbh Wear prognosis method and maintenance method
CN105544363A (en) * 2014-10-21 2016-05-04 宝马格有限公司 Fluid delivery device, injection device, ground milling machine, and method
CN105544363B (en) * 2014-10-21 2018-07-06 宝马格有限公司 Fluid delivery system, injection device, ground milling machine and method
US10287882B2 (en) 2015-07-10 2019-05-14 Wirtgen Gmbh Earth working machine and method for wear-optimized operation of an earth working machine
US10794010B2 (en) 2016-02-15 2020-10-06 Wirtgen Gmbh Planning system and method for coordinating road milling tasks
US11346062B2 (en) 2016-02-15 2022-05-31 Wirtgen Gmbh Planning system and method for coordinating road milling tasks
CN111608050A (en) * 2020-05-25 2020-09-01 顾世来 Asphalt pouring and rolling all-in-one machine for building

Also Published As

Publication number Publication date
ATE410553T1 (en) 2008-10-15
EP1396581A3 (en) 2004-12-22
EP1396581B1 (en) 2008-10-08
US6887013B2 (en) 2005-05-03
DE10241067B3 (en) 2004-04-22
EP1396581B3 (en) 2016-06-01
US20040146353A1 (en) 2004-07-29
ZA200306918B (en) 2004-06-17
DE50310599D1 (en) 2008-11-20

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