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WO2018157966A1 - Procédé de fonctionnement d'un finisseur routier et table pour finisseur routier - Google Patents

Procédé de fonctionnement d'un finisseur routier et table pour finisseur routier Download PDF

Info

Publication number
WO2018157966A1
WO2018157966A1 PCT/EP2018/000071 EP2018000071W WO2018157966A1 WO 2018157966 A1 WO2018157966 A1 WO 2018157966A1 EP 2018000071 W EP2018000071 W EP 2018000071W WO 2018157966 A1 WO2018157966 A1 WO 2018157966A1
Authority
WO
WIPO (PCT)
Prior art keywords
compression element
screed
paver
leitschutzblech
drive
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.)
Ceased
Application number
PCT/EP2018/000071
Other languages
German (de)
English (en)
Inventor
Matthias Drake
Sönke Demuth
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.)
Dynapac GmbH
Original Assignee
Dynapac 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 Dynapac GmbH filed Critical Dynapac GmbH
Publication of WO2018157966A1 publication Critical patent/WO2018157966A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E01C19/4833—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 with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means

Definitions

  • the invention relates to a screed for a paver according to the preamble of claim 1. Furthermore, the invention relates to a screed for a paver according to the preamble of claim 6. In addition, the invention is directed to a method for operating a paver according to the preamble of the claim 9 and according to the preamble of claim 12.
  • Road pavers typically have a screed which either has a constant working width or allows for a change in working width by associating piles with opposite sides of a main screed.
  • the screed is arranged on the rear end of the paver seen in the direction of production so that it is supported with a lower sliding plate on the material of the pavement to be installed and thereby takes place a compression of the material.
  • the screed has at least one referred to as rammer compaction element.
  • Each compacting element or each rammer has a tamper strip which can be moved up and down and which is located in the direction of production in front of the sliding plate of the screed.
  • the stroke ie the amplitude, the periodic up and down movement of the tamper strip, is specified by a drive.
  • a larger layer thickness of the material to be incorporated built-in thickness
  • a larger stroke is required than at a lower installation thickness.
  • the same can be adjusted in height via an adjusting screw.
  • the compression element or the tamper strip also called ram knife
  • the compression element or the tamper strip is connected via a receptacle with a rod or a connecting rod, which is connected to an eccentric drive.
  • For the up and down movement of the compression element of the eccentric is driven so that the compression element performs a periodic up and down movement over the connecting rod.
  • the translational up and down movement of the compression element is always, due to the eccentric, superimposed by a rotational movement.
  • changes during a lifting period the relative vertical orientation of the compression element or the rammer blade and the recording to compacting paving material and to the other components of the screed.
  • this rotating movement component of the compression element selbiges occurs periodically with other elements of the screed such as a guide, a base board, a scraper and / or a guard plate in contact.
  • This periodic contact with other elements of the screed leads to increased wear of all involved items. Due to this continual wear all objects, in particular the compression element, must be checked regularly and replaced if necessary. The wear also changes a gap width between the compression element and the scraper or the guard plate, which makes a regular adjustment of the gap width required. This regular check as well as replacement and readjustment means that the road paver is at least temporarily not available for the production of a road surface.
  • the invention has for its object to provide a screed for a paver and a method for operating a paver with which the paver is operable in a cost effective manner.
  • the compression element is associated with at least one sensor for determining a distance between the Leitschutzblech and / or arranged on the Leitschutzblech scraper and the compression element.
  • this sensor is continuously continuously or intermittently periodically determined the distance of the compression element or the rammer blade or the receptacle and the scraper or the Leitschutzblech.
  • the Leitschutzblech is parallel or at a certain angle to the production direction manually and / or automatically adjustable by means of at least one drive, in particular an actuator, wherein the drive is associated with the screed main body.
  • the guide guard can either by hand or by a manual operation of the Drive or automatically adjusted by the drive.
  • the Leitschutzblech can also provide that over the entire width of the screed the Leitschutzblech several such drives, which are preferably coupled or synchronized with each other, are connected to the Leitschutzblech. Similarly, it is conceivable that any attachment parts of the screed are coupled to the drives of the screed main body or have their own drive for adjusting the Leitschutzbleches. By such a synchronization of all drives, the said distance can be adjusted to the same extent over the entire installation width.
  • the present invention can also provide that the at least one drive for moving the guide guard against the production direction is connected via an actuating receptacle with the Leitschutzblech, in such a way that the Leitschutzblech and / or the scraper can be brought into contact with the compression element.
  • the adjusting receptacles or the plurality of adjusting receptacles are arranged on a rear side of the guide protection plate and connected to the at least one drive via a force transmission means such as a shaft, an axle or the like.
  • a force transmission means such as a shaft, an axle or the like.
  • the at least one sensor is designed as a mechanical probe, electrical, electromagnetic, optical or acoustic sensor and can be controlled via a control unit. It is conceivable that a plurality of such sensors extend along the compression element in order to determine the distance between the compression element and the scraper, or the guard plate, at different positions. The sensor is designed in such a way that the distance is either measured directly or indirectly determined by means of a measured parameter such as the transit time of a signal.
  • the drive can be calibrated before commissioning to determine the absolute distance value based on relative change in distance.
  • a drive which makes a force-dependent adjustment of the Leittikbleches, without measuring the present gap width. That is, the drive for adjusting the guide guard is activated and at the moment in which the gap width reaches 0 mm, the necessary drive torque of the drive will increase. The drive detects the torque increase and switches off. Possibly. the drive takes again a provision over a dimension X in order to relieve the possibly already clamped compression element or the tamper strip.
  • the at least one drive of the position sensor can be controlled by the control unit in such a way that the guide protection plate can be moved as a function of the distance between the guide guard plate and / or the scraper and the compression element determined by the sensor.
  • the control unit can be given at least one reference or threshold value, from which such a method of the guide guard plate is necessary in order to minimize the distance. If a distance has been determined which is greater than the reference or threshold value, then a corresponding signal is transmitted to the at least one drive, which causes the distance to be adjusted.
  • the claim 6 is preferably to draw back to one of claims 1 to 5. Accordingly, it is provided according to the invention that the compression element over at least a connecting rod is coupled to a drive such that the transmitted from the connecting rod to the compression element movement comprises only a vertical component of movement.
  • the compression element By this coupling of the compression element with the connecting rod, the movement of the compression element only translational and no rotational movements.
  • the compression element moves at least almost parallel to a guide and a scraper or a Leitschutzblech. The fact that the movement takes place in parallel, a periodic impact on the guide and other adjacent components is avoided. By avoiding the periodic stop, the wear of all involved components can be reduced.
  • the at least one connecting rod has at its two ends in each case a transversely oriented to the direction of rotation axis, with which this is rotatably connected to the compression element and the drive, in particular on an eccentric drive, wherein the drive about a transversely Axis aligned with the direction of production can be driven.
  • the connecting rod By rotatable connection at both ends of the connecting rod with the compression element and the drive, or the eccentric drive, the pure vertical movement of the compression element can be realized.
  • several connecting rods are connected to the compression element or with at least one drive.
  • this guide the vertical movement of the compression element is directed in a predetermined direction. Since the compression element is rotatable with one end of the at least one Pleuels connected, it fits the orientation of the guide and / or the scraper. By positioning this guide thus the movement of the compression element can be passed.
  • a method for solving the above-mentioned problem comprises the measures of claim 9. Accordingly, it is provided that a distance between the compression element and the Leitschutzblech and / or attached to the Leitschutzblech scraper is determined.
  • the relative positioning of the guide guard plate and / or the scraper to the compacting element can be adjusted for a corresponding value for this distance.
  • this adaptation or reduction of the distance can be effectively prevented road construction material passes in a space between the base body and the Leitschutzblech and limits the range of motion of the compression element.
  • the guide guard and / or the scraper is moved by a drive in dependence on the determined distance parallel to a production direction of the paver, and preferably such that the distance between the guard plate and / or the scraper and the compression element is minimized, or that touch the guard plate and / or the wiper and the compression element.
  • a further advantageous exemplary embodiment of the present invention can provide that the distance determined by the sensor is transmitted from a control unit to a drive, in particular to the screed main body, and the guide guard is automatically moved parallel to the drive by means of an actuator, the determined distance Production direction is moved.
  • This automatic tracking of the guard plate eliminates the manual checking of the distance and a possible tracking.
  • the control unit is aware of whether or not the distance corresponds to a preferred reference to be preselected or a threshold value. If this is not the case, the drive is instructed by the control unit to adjust the distance accordingly by the positioner.
  • Another method for solving the above-mentioned problem comprises the measures of claim 12. Accordingly, it is provided that the compression element is moved up and down by a drive via at least one connecting rod, wherein the movement of the compression element exclusively has a vertical movement component.
  • the subject matter of claim 12 is to be considered in particular in connection with the measures of claims 9 to 11.
  • the compression element is guided in its vertical movement along a guide connected to the plank body and / or a scraper.
  • Fig. 1 is a schematic side view of a road finisher with a
  • Fig. 2 shows a section through a schematically illustrated portion of a screed.
  • a paver 10 is shown schematically, which serves for the production of a road surface, preferably an asphalt pavement.
  • the road paver 10 has a central drive unit 11, which has an internal combustion engine in the present case.
  • the drive unit 11 may also have other drives, such as an internal combustion engine, a generator driven by this and an electric motor.
  • the drive unit 11 has hydraulic drives, in particular hydraulic pumps and hydraulic motors.
  • the road paver 10 also has a chassis 12, which is formed in the embodiment shown as a wheel gear.
  • the chassis 12 of the paver 10 may also be designed as a crawler chassis.
  • the chassis 12 is driven by the drive unit 11 such that the paver 10 can be moved in the production direction 13.
  • a trough-like or trough-shaped reservoir 14 is arranged in front of the drive unit 11.
  • the reservoir 14 serves to receive a supply of the material used for the production of the road surface, in particular an asphalt mixture.
  • the material from the reservoir 14 is transported under the drive unit 11 along the direction of the production direction 13 rear end of the paver 10.
  • a distributor screw 15 is arranged behind the drive unit 11. The auger 15 extends transversely to the production direction 13 and serves to distribute the material over the entire working width of the paver 10 evenly.
  • a screed 16 is provided behind the auger 15.
  • the screed 16 is attached to up and down movable support arms 17.
  • the support arms 17 are pivotally mounted on the chassis 12.
  • the screed 16 is integrally formed, namely not changeable in width.
  • the invention is also suitable for screeds, which are adapted to adapt the working width of the paver 10 to the width of the pavement to be installed, in width.
  • the screed 16 has a screed body 18 with a slide plate 19 arranged underneath.
  • One on the material to be installed resting bottom 20 of the slide plate 19 is formed substantially planar.
  • the screed 16 also has a seen in the production direction 13 in front of the screed body 18 arranged compression member 21 and a rammer (Fig. 2).
  • the compacting element 21 has a tamper strip 22 which extends transversely to the direction of production 13 and extends over the entire width of the screed 16.
  • the tamper strip 22 is also referred to in the jargon as a ram blade.
  • the tamper strip 22 is seen in the production direction 13 arranged in front of the screed main body 18 and stored on selbigem up and down.
  • a front end of the screed 16 At a front end of the screed 16, viewed in the direction of production 13, it has a plate-shaped protective guard plate 23. Between the Leitschutzblech 23 and the plank body 18, a gap 24 is formed in which the compression element 21 moves. At a lower end 25 of the Leitschutzbleches 23 is located over the entire width of the screed 16 parallel to the tamping strip 22, a scraper 26, which is preferably formed like a blade.
  • the compression element 21 or the tamper strip 22 shown here is coupled via a receptacle 27 by a connecting rod 28 to a drive 29, in particular an eccentric drive.
  • the connecting rod 28 is connected via a first axis of rotation 30 with the receptacle 27 and connected to a second axis of rotation 31 to the drive 29.
  • the first axis of rotation 30 and the second axis of rotation 31 are aligned parallel to one another and indeed perpendicular to the production direction 13.
  • the drive 29 is firmly integrated in the screed 16. Although in the embodiment shown in Fig. 2, only one connecting rod 28 is shown, it is conceivable that the drive 29 over the entire working width of the paver 10 several such connecting rods, which in turn are connected to the compression element 21, drives.
  • At least one sensor 32 is assigned to the compression element 21 or the receptacle 27.
  • the sensor 32 which may be, for example, a mechanical sensor, an electrical, an electromagnetic, an optical, an acoustic sensor or the like, is preferably directed with its active side on a rear side of the guide guard plate 23 and the scraper 26.
  • the sensor 32 shown schematically in Fig. 2 can be controlled and read via a control unit, not shown.
  • a control unit not shown.
  • a plurality of sensors 32 are arranged, which are aligned at least predominantly equally on the guard plate 23.
  • a guide 33 is arranged, which serves as a guide means for the movement of the compression element 21.
  • This guide 33 may extend over the entire width of the compression element 21 or be assigned only in sections selbigen.
  • the Leitschutzblech 23 is associated with at least one actuating receptacle 34, via which the Leittikblech 23 via a shaft 35 by a drive 36 parallel to the direction of manufacture 13 can move back and forth. It can be inventively provided that over the entire width of the guide guard plate 23 more of these drives 36 are arranged with a shaft 35 for adjusting the Leitschutzbleches 23.
  • a corresponding signal is transmitted to the drive 36, which then moves the guide guard plate 23 via the shaft 35 such that the distance 37 thus determined corresponds to the predetermined reference value.
  • the adjusting element 34 is moved in such a way that the guide protection plate is pulled against the production direction 13 to the compression element 21. In this position, in addition to the guide 33 also serves the scraper 26 as a guide for the vertical movement of the compression element 21st
  • an electrical resistance or a capacitance between the tamper strip 22 and the wiper 26 is determined.
  • the distance 37 can thus be determined. Due to the rotatable mounting of the connecting rod 28 about the first axis of rotation 30 and the second axis of rotation 31 causes a rotation 38 of the drive 29 up and down of the compression element 21.
  • This rotational support of the compression element 21 moves this purely translationally with only vertical components of motion and from. In this case, this vertical up and down movement can be guided at least partially by the guide 33 and by the wiper 26.
  • transverse forces are reduced, so that they can be received at least almost completely by the guide 33 and the wiper 26. Wear of the components is thus almost completely, preferably completely prevented. LIST OF REFERENCE NUMBERS

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

Abstract

Les finisseurs routiers (10) disposent d'une table (16). La table (16) comporte au moins un élément de compression (21). L'élément de compression (21) est relié par le biais d'un logement (27) à une bielle (28) reliée à un entraînement excentrique (29). Un matériau de construction routière est introduit dans table (16) par un espace ménagé entre l'élément de compression (21) et une tôle de protection et de guidage (23). Ce matériau de construction routière affecte significativement le mouvement de l'élément de compression (21). Par conséquent, cette zone doit être dégagée régulièrement du matériau de construction routière. L'invention concerne une table (16) et un procédé de fonctionnement d'un finisseur routier (10) permettant d'utiliser le finisseur routier (10) de manière rentable. Ce but est atteint en ce qu'au moins un capteur (32) destiné à déterminer la distance (37) entre la tôle de protection et de guidage (23) et/ou un racleur (26), disposé au niveau de la tôle de protection et de guidage (23), et l'élément de compression (21) est associé à l'élément de compression (21).
PCT/EP2018/000071 2017-03-03 2018-02-23 Procédé de fonctionnement d'un finisseur routier et table pour finisseur routier Ceased WO2018157966A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017002010.8A DE102017002010A1 (de) 2017-03-03 2017-03-03 Verfahren zum Betreiben eines Straßenfertigers und Einbaubohle für einen Straßenfertiger
DE102017002010.8 2017-03-03

Publications (1)

Publication Number Publication Date
WO2018157966A1 true WO2018157966A1 (fr) 2018-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/000071 Ceased WO2018157966A1 (fr) 2017-03-03 2018-02-23 Procédé de fonctionnement d'un finisseur routier et table pour finisseur routier

Country Status (2)

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DE (1) DE102017002010A1 (fr)
WO (1) WO2018157966A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457811A (fr) * 1964-11-26 1966-11-04 Abg Werke Gmbh Machine pour l'exécution de l'infrastructure des chaussées
US5516231A (en) * 1993-12-15 1996-05-14 Ingersoll-Rand Company Vibratory screed for a road finisher
EP0965685A2 (fr) * 1998-06-20 1999-12-22 ABG Allgemeine Baumaschinen-Gesellschaft mbH Poutre dameuse pour finisseuse
US6238135B1 (en) * 1998-08-11 2001-05-29 Abg Allgemeine Baumaschinengesellschaft Mbh Paver having adjustable screed angle using a tamper bar
JP2007239398A (ja) * 2006-03-13 2007-09-20 Mitsugi Kimura アスファルトフィニッシャー
JP2009133167A (ja) * 2007-12-01 2009-06-18 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 舗装機械のタンパ装置における合材侵入防止装置
DE102008007307A1 (de) * 2008-02-02 2009-08-06 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Vorrichtung zum Verdichten von Straßenbaustoffen
EP2412872A1 (fr) * 2010-07-27 2012-02-01 Dynapac GmbH Poutre lisseuse et finisseuse de route avec poutre lisseuse
EP3085834A1 (fr) * 2015-04-20 2016-10-26 Dynapac GmbH Partie rapportee de madrier pour madrier de montage, madrier de montage et finisseuse de route comprenant un madrier de montage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351592A (en) 1940-08-01 1944-06-20 Barber Greene Co Tamper, screed, and deflector construction for road finishing machines
DD278369A1 (de) 1988-12-22 1990-05-02 Baumaschinen Gatersleben Veb Verdichtungseinrichtung fuer ein einbauaggregat am deckenfertiger
JP3794931B2 (ja) 2001-04-06 2006-07-12 新キャタピラー三菱株式会社 スクリード装置におけるタンパ装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457811A (fr) * 1964-11-26 1966-11-04 Abg Werke Gmbh Machine pour l'exécution de l'infrastructure des chaussées
US5516231A (en) * 1993-12-15 1996-05-14 Ingersoll-Rand Company Vibratory screed for a road finisher
EP0965685A2 (fr) * 1998-06-20 1999-12-22 ABG Allgemeine Baumaschinen-Gesellschaft mbH Poutre dameuse pour finisseuse
US6238135B1 (en) * 1998-08-11 2001-05-29 Abg Allgemeine Baumaschinengesellschaft Mbh Paver having adjustable screed angle using a tamper bar
JP2007239398A (ja) * 2006-03-13 2007-09-20 Mitsugi Kimura アスファルトフィニッシャー
JP2009133167A (ja) * 2007-12-01 2009-06-18 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 舗装機械のタンパ装置における合材侵入防止装置
DE102008007307A1 (de) * 2008-02-02 2009-08-06 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Vorrichtung zum Verdichten von Straßenbaustoffen
EP2412872A1 (fr) * 2010-07-27 2012-02-01 Dynapac GmbH Poutre lisseuse et finisseuse de route avec poutre lisseuse
EP3085834A1 (fr) * 2015-04-20 2016-10-26 Dynapac GmbH Partie rapportee de madrier pour madrier de montage, madrier de montage et finisseuse de route comprenant un madrier de montage

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