EP0464313B1 - Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen - Google Patents

Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen Download PDF

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Publication number
EP0464313B1
EP0464313B1 EP91104507A EP91104507A EP0464313B1 EP 0464313 B1 EP0464313 B1 EP 0464313B1 EP 91104507 A EP91104507 A EP 91104507A EP 91104507 A EP91104507 A EP 91104507A EP 0464313 B1 EP0464313 B1 EP 0464313B1
Authority
EP
European Patent Office
Prior art keywords
spray
jet
asphalt
paver
finishing
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
EP91104507A
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English (en)
French (fr)
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EP0464313A1 (de
Inventor
Lamberto Ricci Petitoni
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.)
Marini SpA
Original Assignee
Marini SpA
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Filing date
Publication date
Application filed by Marini SpA filed Critical Marini SpA
Publication of EP0464313A1 publication Critical patent/EP0464313A1/de
Application granted granted Critical
Publication of EP0464313B1 publication Critical patent/EP0464313B1/de
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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present invention concerns an automatic asphalt paver machine for roads and other paved areas.
  • This solution describes the convenience of applying one anchorage layer immediately before laying the bituminous layer onto the road surface.
  • This solution consists in applying a sticky anchorage coating onto the road surface (bitumen emulsion and water) before laying the asphalt layer, in order to give better adhesion of the asphalt.
  • the road surface is previously cleaned and a thin anchorage film of sticky bituminous substance is sprayed onto it before the spreading of the next asphalt layer.
  • finishing machines for depositing onto the road surface new asphalt layers
  • these machines are generally self-movable or with a movable caterpillar track system, and involve rear height-adjustable auger asphalt distribution means, followed by rolling compacting means having a minimum width and to the rear of which are associated transversely movable rolling compacting means having the further function to spread and compact the asphalt over a wider extent of the road when compared to the width of the paver machine.
  • said auger means are symmetrically transversely laterally extendable to distribute and to spread the asphalt to a width greater than the minimum width of the machine, to satisfy the requirements of a spread made by means of said widthwise enlargeable compacting means.
  • EP-A-0418105 (SCREG ROUTES ET TRAVAUX PUBLICS) discloses a rear enlargeable and height-adjustable, asphalt layer distribution means for an automatic asphalt paver machine for the distribution in a uniform way of an asphalt layer, having in front of said asphalt layer distribution means, spray-jet means to jet fluid substances onto the road surface wherein both said spray-jet means and asphalt layer distribution means are enlargeable, to cover an extent wider than the machine.
  • EP-A-0292337 discloses similarly enlargeable spray-jet means.
  • a self-propelled or towed automatic asphalt paver finishing machine for roads and other paved areas comprising widthwise and height adjustable aspalt layer distribution means and rolling means for the uniform distribution and compaction of at least one layer of asphalt, and wherein in front of said asphalt layer distribution means, spray-jet means are provided, the spray-jet means being so arranged that the spray path is widthwise enlargeable, which means jet fluid substances onto the road surfaces, wherein the spray-jet means are adjustable in height independently of the successive asphalt layer distribution means, and are movable in a direction transverse to the direction of advancement in order to increase the surface area sprayed.
  • EP-A-0279795 discloses a material control arrangement for bulk of materials in which is illustrated a paving machine which has main fixed screeds associated with extendable screeds and enlarging cochlea asphalt means with opposing thread.
  • GB-A-1041511 JOHNSTON BROTHERS (ENGINEERING) LIMITED discloses enlargeable reciprocating spray-jet means with a number of spray jets spaced apart along the length thereof and which may be provided with a means for automatically cutting off the flow of material through certain of the orifices where the two spray bars overlap so that the density of spraying is constant across the whole width of the system.
  • US-A-4231678 discloses a paving machine comprising a shaft driven by a reversible hydraulic motor positioned at the inner end of the shaft.
  • the shaft carries an Archimedean screw axially displaceable on the shaft and rotatable therewith.
  • the screw is mounted on a bearing attached to the side wall of the hopper so that the width of the conveyor is usually the same as the width of the hopper.
  • An extension conveyor unit may be provided, the shaft of which is disconnectably connected to the shaft to rotate therewith. Material from the hopper enters the conveyor and is thereby uniformly distributed along the whole width of the machine and any extension unit attached.
  • Each extension unit has at its rear a height adjustable levelling plate to control the thickness of the layer of the material being laid by the extension unit.
  • the material is conveyed sideways beyond the side walls and is spread by an extension of the screed plate.
  • the object of the present invention is to allow the machine to perform a wider operational activity that can include the method above-mentioned or other, having the possibility to utilize said means for other scopes such as to spray or jet a fluid onto a road paving before said widthwise enlargeable layer distribution and compaction means in order to make possible the operation of the spray-jet means at different advancing speeds and with constant superficial treatment and with different asphalt layer width distribution.
  • a self-propelled or towed automatic asphalt paver finishing machine for roads and other paved areas comprising widthwise and height-adjustable, asphalt layer distribution means and rolling compacting means for the uniform distribution and compaction of at least one layer of asphalt, and wherein in front of said asphalt layer distribution means spray-jet means are provided, the spray-jet means being so arranged that the spray part is widthwise enlargeable, which means jet fluid substances onto the road surface, and wherein said spray-jet means are adjustable in height independently of the successive asphalt layer distribution means and movable in a direction transverse to the direction of advancement during the advancement of the asphalt paver, in a oscillating manner, characterized in that:
  • said spray-jet means :
  • Said spray-jet means are widthwise enlargeable by means of at least two spray sets transversely disposed and operatively downwards oriented, mounted on a displacement cross means, and able to move from a reunited substantially central position to a position substantially more or less externally enlarged and opposite each other, in order to cover different widths of road surface in conformity at least with the prearranged width of said widthwise enlargeable asphalt layer distribution means.
  • Figure 1 represents a schematic side view of the finishing-machine (paver) according to the invention.
  • Figure 2 represents a schematic side view of the rear pavement finishing device according to the invention.
  • Figure 3 represents a schematic top view of the rear pavement finishing device according to the invention in a retracted minimum width position.
  • Figure 4 represents a schematic top view of the rear pavement finishing device according to the invention in an extended maximum width position.
  • Figure 5 represents a perspective schematic view of the disposition of the two movable spray-jet sets.
  • Figures 6 and 7 represent two schematic views of the spray-jet amplitude and respective different heights of the spray-jet nozzles from the road surface in proportion to different advancing speeds.
  • the Figures disclose that the invention relates to a self-propelled or towed automatic asphalt paver finishing-machine for roads and other paved areas comprising widthwise and height-adjustable asphalt-layer distribution means and rolling means (B), for the uniform distribution and compaction of at least one layer of asphalt or similar bituminous concrete, and wherein in front of said widthwise enlargeable asphalt layer distribution and compacting means (B), spray-jet means (A) are provided, the spray-jet means being so arranged that the spray path is widthwise enlargeable, which means jet fluid substances onto the road surface, these means being adjustable in height by a dynamic-fluid (cylinder) independent device (7).
  • Said spray-jet means for fluid substances include at least two spray-jet sets (1,1') transversely disposed with downwards oriented nozzles mounted on a displacement cross means, and able to be transversely extended towards opposite sides from a reunited substantially central position (Fig.3) to a substantially laterally extended more or less wider position (Fig.4) in order to cover different widths of road surface in conformity at least with the prearranged width in said asphalt layer enlargeable distribution and compacting finishing means (B).
  • Said spray-jet means are transversely extendable to form a continuous transverse spray line.
  • said spray-jet means for the coating or wetting of the road with fluid includes also a central device with an alternatingly transversely movable spray-jet means (2).
  • the sprayers which overlap are excluded from double spraying by well known means, thus avoiding non-uniform wetting.
  • the spray flow is varied as a function of the speed of advancement, correspondingly varying the delivery pressure.
  • the spray-jet device is also height-adjustable.
  • Figures 6 and 7 disclose that with a speed of advancement V1 we have for example, with a pressure p1, a spray amplitude B, consequently in order to obtain a spray amplitude "D" on the road surface, we distance the spray-jet means at a proportional height H from the road surface.
  • the oscillation frequency of the oscillation device is variable in direct proportion to the variation of the advancing speed.
  • Said rear widthwise enlargeable asphalt layer distribution and compaction means (B) are adjustable in height by means of lateral arms (6) and involve opposite handed auger asphalt distribution means (clockwise-counterclockwise), transversely extendable in opposition (3'), and at the rear are disposed asphalt layer rolling and compaction means (vibrating rollers Etc), involving a central compaction means of fixed minimum width (4) to compact a restricted central band of the road surface area and at the rear, two compaction means transversely movable in opposition to spread and compact the layer of the opposed sides to a width larger than the width of the machine (5).
  • the machine includes furthermore:

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)

Claims (5)

  1. Eine durch Eigenkraft oder Zug bewegte Asphaltiermaschine für Straßen und andere asphaltierte Gebiete, mit breiten- und höhenverstellbaren Asphaltausteilvorrichtungen und rollenden Kompaktiereinrichtungen (B) zur gleichförmigen Verteilung und Kompaktierung mindestens einer Asphaltschicht, sowie vor diesen Asphaltausteilvorrichtungen (B) angeordneten Spritzdüsen (A), welche letzteren so beschaffen sind, daß der Sprühteil weitenverstellbar ist, und Flüssigkeit auf die Straße sprühen sowie unabhängig von den folgenden Asphaltausteilvorrichtungen höhenverstellbar sind und ein Begrenzungselement enthalten, das dafür sorgt, daß die einander überlappenden Gebiete der Spritzdüsen nicht doppelt besprüht werden, und während der Fortbewegung der Asphaltiermaschine quer zur Fahrtrichtung wellenförmig bewegbar ist, gekennzeichnet dadurch, daß
    . besagte Spritzdüsen (A) ein Begrenzungselement enthalten, das dafür sorgt, daß die einander überlappenden Gebiete der Spritzdüsen nicht doppelt besprüht werden, und
    . eine zentrale Spritzdüse vorhanden ist (2), hinter einer ersten (1') und vor einer zweiten quer zur Fahrtrichtung dieser Sprühstangen (1,1') beweglichen Sprühstange (1) mit Spritzdüsen, die zum Quersprühen ausgerichtet sind, während die zentrale Spritzdüse in Fahrtrichtung sprüht.
  2. Eine durch Eigenkraft oder Zug bewegte Asphaltiermaschine für Straßen und andere asphaltierte Gebiete wie nach Anspruch 1, gekennzeichnet dadurch, daß besagte Spritzdüsen:
    . zwischen den Asphaltausteilvorrichtungen (B/3,4,5) und dem Endsatz der Raupenbänder der Asphaltiermaschine liegen;
    . unabhängig von den folgenden Asphaltausteilvorrichtungen höhenverstellbar sind (7), wobei die Asphaltausteilvorrichtungen ein linkes und ein rechtes quer ausziehbares Sperreisen umfaßt, die einander gegenüberliegen (3-3'), sowie die genannte Kompaktiereinrichtung (4-5B).
  3. Asphaltiermaschine wie nach Anspruch 1, gekennzeichnet dadurch, daß besagte zentrale Spritzdüse (2) abwechselnd quer beweglich ist.
  4. Asphaltiermaschine wie nach Anspruch 1, gekennzeichnet dadurch, daß der Wellenbeweger besagter Spritzdüse Steuereinrichtungen umfaßt, die eine Variierung der Wellenhäufigkeit je nach Geschwindigkeit deer Maschine gestatten.
  5. Asphaltiermaschine wie nach Anspruch 1 mit Asphaltausteilvorrichtungen mit linkem und rechtem Sperreisen (3), die einander gegenüberliegen (3-3'), wobei die genannten ausziehbaren Asphaltausteilvorrichtungen und rückwärtigen Kompaktiereinrichtungen (4-5) höhenverstellbar sind (6,7).
EP91104507A 1990-06-22 1991-03-22 Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen Expired - Lifetime EP0464313B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8341190 1990-06-22
IT83411A IT1242362B (it) 1990-06-22 1990-06-22 Macchina stirofinitrice automatica per l'applicazione di strati di conglomerati bituminosi e simili sul manto stradale.

Publications (2)

Publication Number Publication Date
EP0464313A1 EP0464313A1 (de) 1992-01-08
EP0464313B1 true EP0464313B1 (de) 1994-05-04

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Application Number Title Priority Date Filing Date
EP91104507A Expired - Lifetime EP0464313B1 (de) 1990-06-22 1991-03-22 Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen

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Country Link
EP (1) EP0464313B1 (de)
DE (1) DE69101882T2 (de)
ES (1) ES2058965T3 (de)
IT (1) IT1242362B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675522B1 (fr) * 1991-04-17 1993-12-10 Screg Routes Travaux Publics Dispositif de realisation d'un revetement routier par repandage successif sur la surface routiere a recouvrir, d'une couche d'accrochage et d'une couche de materiau bitumineux chaud.
CN106087661A (zh) * 2016-08-01 2016-11-09 徐工集团工程机械股份有限公司道路机械分公司 一种乳化沥青同步洒布摊铺机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1041511A (en) * 1964-03-03 1966-09-07 Johnston Brothers Eng Improvements in or relating to ground spraying apparatus
DE1577825B2 (de) * 1965-03-12 1972-05-10 Lechler Chemie Gmbh, 7000 Stuttgart Fahrbare spritzvorrichtung zur flaechenbespruehung mit variablem spritzbereich
DD114974A1 (de) * 1974-09-13 1975-09-05
AU3604878A (en) * 1977-05-17 1979-11-15 Integrated Tech Ltd Paving machines
SE441371B (sv) * 1984-12-27 1985-09-30 Dynapac Ab Anordning for spridning av bituminost bindemedel
US4823366A (en) * 1987-02-17 1989-04-18 White Consolidated Industries, Inc. Material conveying equipment with control for paving materials using ultrasonic waves
FR2611766B1 (fr) * 1987-02-24 1989-06-30 Screg Routes & Travaux Dispositif de repandage d'emulsion bitumineuse sur la surface d'une route sans circulation de camions sur la couche d'accrochage realisee par repandage d'emulsion

Also Published As

Publication number Publication date
DE69101882T2 (de) 1994-11-10
IT1242362B (it) 1994-03-04
DE69101882D1 (de) 1994-06-09
IT9083411A1 (it) 1991-12-22
EP0464313A1 (de) 1992-01-08
ES2058965T3 (es) 1994-11-01
IT9083411A0 (it) 1990-06-22

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