EP2366832B1 - Method and paver for producing a compacted paved surface - Google Patents

Method and paver for producing a compacted paved surface Download PDF

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Publication number
EP2366832B1
EP2366832B1 EP10002896.8A EP10002896A EP2366832B1 EP 2366832 B1 EP2366832 B1 EP 2366832B1 EP 10002896 A EP10002896 A EP 10002896A EP 2366832 B1 EP2366832 B1 EP 2366832B1
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EP
European Patent Office
Prior art keywords
tamper
paving
screed
stroke
width
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.)
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Application number
EP10002896.8A
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German (de)
French (fr)
Other versions
EP2366832A1 (en
Inventor
Martin Dipl.-Ing. Buschmann
Roman Dipl.-Ing. Munz
Klaus Bertz
Ralf Weiser
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.)
Joseph Voegele AG
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Joseph Voegele AG
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 Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to EP10002896.8A priority Critical patent/EP2366832B1/en
Priority to PL10002896T priority patent/PL2366832T3/en
Priority to US13/040,526 priority patent/US8807866B2/en
Priority to JP2011057545A priority patent/JP5345645B2/en
Priority to CN2011100659301A priority patent/CN102191743B/en
Publication of EP2366832A1 publication Critical patent/EP2366832A1/en
Application granted granted Critical
Publication of EP2366832B1 publication Critical patent/EP2366832B1/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
    • 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
    • E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
    • 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
    • E01C19/22—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 consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/407—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with elements or parts partly or fully immersed in or penetrating into the material to act thereon, e.g. immersed vibrators or vibrating parts, kneading tampers, spaders
    • 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

Definitions

  • the invention relates to a method according to the preamble of patent claim 1 and a road finisher according to the preamble of claim 5.
  • a method according to the preamble of claim 1 and a paver according to the preamble of claim 5 are each made US 2002/0141823 A1 known.
  • screed used for carrying out the method of US 2002/0141823 A1 screed used consists of the tamper strip of the pave width through continuous tamper from separate, transverse to the installation direction adjacent tamper strip sections.
  • Each Tamperologicalnabites is driven by at least one control cam.
  • the control cams of all Tamperleislenabête are arranged on a common drive shaft which is supported and driven in the screed.
  • the control cams are paired out of phase with each other, so that the tamper strip sections precompress each other out of phase.
  • the strokes and frequencies are the same under the Tamperangnabitesen, so over the entire paving width transverse to the working direction a uniform Vorverdichtungs antique is generated.
  • the stroke can be changed by replacing the control cams in a business interruption.
  • the frequency can be selected for all Tamperangabête on the speed of the drive motor of the drive shaft.
  • a relatively small positive angle of attack of the screed or the screed plate with respect to a uniform compaction and good surface flatness is desirable.
  • a positive angle of attack means that the leading edge of the screed in the working direction, in the area of which the tamper device compresses the paving material, is higher above the level than the edge of the paving screed located at the rear in the working travel direction.
  • the positive angle of attack should be kept as constant as possible, because it influences the lining thickness. The higher the compaction power introduced by the tamper device, the higher the local compaction, and vice versa.
  • the compaction performance since working parameters such as the weight of the screed and the compaction willingness of the paving material are relatively constant, is primarily dependent on the stroke and also, albeit somewhat less, on the frequency of the tamper device. If the installation speed drops at a constant stroke and constant frequency of the tamper device, then the compaction performance increases locally on, which then increases because of the then locally increasing compaction, the screed, the angle of attack undesirably reduced and the lining thickness increases. Conversely, the local compaction performance decreases with increasing installation speed, so that the screed decreases because of the then lower compression, the angle of attack increases undesirably and the installation thickness decreases. Therefore, it is desirable to produce a constant compression during installation largely independent of installation parameters, such as the installation speed, in order not to change the angle of attack of the screed or as little as possible.
  • a so-called rigid screed has a fixed pave width, which is not changeable during installation.
  • the pave width of the rigid paving screed can be gradually increased by widening parts at the ends of the rigid paving screed.
  • Each widening part also has a tamper device and a screed plate, optionally equipped with an unbalance vibrator.
  • an extraction screed is used if the paving width is to vary during installation.
  • pull-out screed pull-out screed parts are arranged on both sides of a base screed with a fixed paving width.
  • the base screed as the Ausziehbohlenmaschine each have tamper devices.
  • the pull-out screed parts can be added to the ends of the pull-out screed parts, which are also equipped with a tamper device and a screed plate.
  • the tamper device is operated over the entire paving width with the same stroke and frequency.
  • the frequency of the tamper device of the screed along a setpoint curve according to the actual installation speed is controlled to keep the compaction performance of the tamper device regardless of changes in the installation speed substantially constant, ie with decreasing installation speed to reduce the frequency and increase with increasing installation speed.
  • the stroke of the tamper device remains unchanged over the pave width.
  • the stroke of the tamper device can be manually changed stepwise.
  • the regulation of the frequency of the tamper device is also the same over the entire paving width, the requirements for varying installation thickness or paving speed over the paving width is not taken into account.
  • the frequency of the tamper device in response to changes in the positive angle of attack of the screed is varied, in such a way that the angle of attack controls the frequency proportional to compensate for adverse effects of changes in paving speed.
  • the frequency variation takes place uniformly over the entire installation width.
  • the tamper device can only produce a pre-compression of the built-in material, and is then optionally performed in working direction behind the screed plate with hydraulically applied pressure bars a final compression.
  • the stroke of the tamper device determines the maximum possible compression, ie the degree of compaction, and is manually adjustable in steps to different stroke values, whereby the degree of compression achieved can even be increased by increasing the stroke frequency.
  • a known screed are provided in working direction in front of the screed plate screed two at least over the working width of a screed part continuous tamper bars, which are actuated by a common drive or separate drives.
  • the stroke and / or the frequency of the tamper strip are the same across the installation width of the screed part.
  • the strokes and the relative timing of the tamper bars can be adjusted. To change the timing either a timing chain is implemented or replaced.
  • the respective eccentric drive links on the drive shaft are replaced. A variation of the stroke and / or the frequency within the installation width of the screed part and transverse to the working direction is not explained.
  • the invention has for its object to provide a method of the type mentioned above and a method suitable for carrying out the method road paver, with which it is possible, despite unavoidable influences on the installation width varying installation thickness and / or speed of installation the final quality of the ceiling layer in and transverse to the working direction to keep as constant as possible.
  • the tamper strip sections of the tamper device it is now possible for at least the tamper strip sections of the tamper device to be operated differently over the installation width and thus transversely to the working direction with variable lift and / or variable frequency, and thus to remotely tune the compression power within the installation width to locally different installation thicknesses and installation speeds, that results in the built-in ceiling layer in and across the working direction with variable compaction performance, a consistently high and consistent quality.
  • the adjustment of the strokes and / or frequencies within the paving width is to be carried out in steps or continuously in the sections of the tamper device. Even with section-wise variation, a relatively good adaptation to fluctuations in the installation thickness or installation speed over the installation width can be achieved, since such fluctuations are generally not abrupt but relatively steady or harmonious.
  • the local compaction performance of the tamper device is set as it were within the paving width on the local conditions, such as the local installation thickness and / or installation speed, so that ultimately over the entire pave width screed with the desired positive, relatively small and substantially constant angle of attack works, and Compression over the working width adjusted individually varies.
  • the strokes of the tamper strip sections of the tamper device are adjusted differently transversely to the working direction. Also to vary the frequencies within the pave width, may be advantageous as an accompanying measure.
  • the compaction power generated within the pave width of the Tamperangnabitesen can vary as the local thickness and / or Installation speed required.
  • About the setting of the stroke of the tamper device is varied remotely controlled over the installation width in adaptation to local installation parameters and / or set a different frequency for each Tamperangnabites on the pave width.
  • the variation can be set before the start of installation; However, the settings can also be carried out at any time during the installation operation.
  • the adjuster provides either a vehicle operator usable or an automatically operating tool to respond to transversely to the working direction locally different installation thicknesses and installation speeds with locally different settings of the strokes and / or the frequencies of Tamperangnabête the tamper device.
  • the final quality of a built-in pavement with the paver is uniformly high, despite varying installation thickness and / or installation speed across the working direction.
  • the frequencies of the tamper strip sections of the tamper device may also be locally differently adjustable, preferably automatically, by means of the setting device for the strokes or by means of an additional setting device only for the frequencies within the installation width.
  • the course of the installed thickness and / or the surface of the tarmac and / or the installation speed is determined and varies the stroke and / or the frequency of the tamper device locally taking into account the determined course across the working direction Planums, the settings of the screed and actual measurements of appropriately placed sensors are used to control the variation or preparatory or temporally substantially instantaneously, either guided by the driver or in an automated process by means of a computerized control and / or control device.
  • the strokes and / or frequencies are set particularly expediently during ongoing installation in order to additionally be able to take into account changes in the installed thickness or speed of installation in the working direction of travel.
  • An automatic adjustment or control system can be operated with predetermined characteristics or maps for the strokes and / or frequencies.
  • the automatically operated adjustment device can use the signals corresponding to placed sensors and input information that represent the respective actual state of the installation conditions or installation parameters or their changes.
  • the respective lifting drive is a connecting rod eccentric drive with a rotatably driven eccentric shaft.
  • a toggle eccentric drive could be provided.
  • the respective lifting drive is a hydraulic lifting cylinder drive, wherein by means of the adjustment of the piston stroke and / or the piston stroke frequency is adjustable at least for a Tamperangnabêt, preferably by adjusting the pressure and / or the amount per pressure pulse and / or the pressure pulse frequency of Hydraulic loading of the lifting cylinder drive ,.
  • each Tamperangnabêt is coupled via at least two the hub and the frequency of the lifting drive transmitting couplings with the lifting drive.
  • same or even different strokes can be adjusted.
  • a joint with at least one degree of freedom can preferably be provided for each coupling.
  • at least the stroke is continuously varied over the length of the Tamperangnabitess, optionally at a constant frequency.
  • the hinge may be a hinge or the like. Or even a predetermined bending point.
  • Fig. 1 travels a paver F on lateral Switzerlandholmen 1 a screed B, which is floating with a small positive angle ⁇ relative to a Planum 6 on submitted uncompressed installation material 4, eg bituminous paving material, with a paving speed V in working direction R is moved, and a smoothed and compacted Ceiling layer 3 in a built-in thickness D on the Planum 6 is installed.
  • the installation thickness D with influencing angle of attack ⁇ is adjusted inter alia by height adjustment front articulation points of the traction arms 1 on the paver F by means of hydraulic cylinders 2 and should be kept as constant as possible during installation.
  • a transverse distribution device 5 is provided for the uncompressed installation material 4.
  • the screed has on the front in working direction side tamper T, with the built-in material 4 is compressed.
  • a screed plate 12 is provided on the underside of the screed B, which is the Surface of the ceiling layer 3 smoothes and, as indicated, optionally equipped with unbalanced vibrators that assist the tamper device T in the compression.
  • the screed B can, if appropriate, also in working direction behind the screed plate 12 a high compression device (not shown) having hydraulically acted pressure bars.
  • an outside control stand 7 may be provided, while the road-ready pa F in a cab has a control console 8. Furthermore, in the road-ready pawn F, for example in the control console 8 and / or in the outside steering position 7, an adjustment device E is provided with which at least the stroke of the tamper device T (a mounting material 4 processing tamper strip 13) on the pave width b ( Fig. 2 ) of the screed B can be varied individually. The frequency with which the tamper device T works can also be varied individually within the installation width b by means of the setting device E or a separate setting device (not shown).
  • the screed B may be a rigid screed with invariable pave width, to the side if necessary broadening parts are grown, which then also have a tamper T and a screed 12, wherein the tamper T is then functionally linked to the adjustment E.
  • the screed B a Auszieabolbaubohle with a base board and laterally extendable and retractable Ausziehbohlen tone (see Fig. 2 ), whose paving width b is variable, wherein in the base board and in the Ausziehbohlen tone each have at least one tamper device T and a screed plate 12 are provided.
  • the Ausziehbohlenmaschine if necessary, further widening parts can be mounted, which then also have a tamper T and a screed plate 12.
  • Fig. 2 illustrates the screed B in one embodiment as Auszieheinbaubohle with a base board 9 and two Ausziehbohlen tone 14. Dashed lines on one end side of a Ausziehbohlenteils 14 a widened enlargement part 15 is indicated.
  • the sheet 12 is shown in this schematic representation as a continuous straight line, although it is divided into sections.
  • the tamper T or the tamper strip 13 of the screed B is subdivided within the installation width b in several sections 13a-13e, for example, each with a portion in the Ausziehbohlen constitution 14, the base board 9 and in the widening part 15. Dashed in the base board 9 there is a Division 10 indicated where the base screed 9, for example, for producing a roof profile in the ceiling layer surface (not shown) by means of an adjusting drive 11 is bent.
  • the base board 9 may have a continuous tamper strip section 13b. However, at least two Tamperratnabitese 13 b, 13 c are expediently provided in the base board 9.
  • the installed on the Planum 6 ceiling layer 3 has wedge-shaped cross-section, ie a within the pave width b here substantially continuously from left to right decreasing installation thickness D (maximum dimension D1, minimum dimension D2).
  • the individual strokes of the tamper strip sections 13a-13d are differently adjustable within the installation width b, for example such that each tamper strip section is at least the same in each case despite the different installation thickness Compression generated.
  • the Tamper instrumentalnabites 13a works here with the largest stroke h a .
  • the strokes h b to h d are gradually smaller than the stroke h a .
  • the different strokes h a to h d are by means of the adjustment E (see Fig. 1 ) either remotely controlled before the start of installation or during installation and / or be set during installation.
  • the frequency f of the strokes h for each Tamperancebites 13a-13d within the installation width b can be set individually, if considered appropriate, and as indicated by the notes f a to f d . This may mean that the frequency f a is the highest and the frequency f d is the lowest, or vice versa. Changes in the stroke of each Tamperancebitess 13a-13d can be adjusted steplessly or in predetermined steps remotely. The same goes for the frequency.
  • each tamper strip section 13a-13d interacts functionally with the screed plate 12 lying behind it, it is important that the respective top dead center of a stroke of a tamper strip section is adjusted relatively precisely to the screed plate 12, which is described in US Pat Fig. 2 is indicated by the bottom of the Tamper instrumentalnabête 13a-13d penetrating different depths into the paving material. If a high-compression device should be provided or several vibration devices on the Glättblechen 12, and their compression powers within the installation width b could be varied.
  • Fig. 3 schematically illustrates a section of the tamper device of the screed B.
  • the Tamperratnabites 13a is coupled to a lifting drive 22 with at least two couplings 16, for example, each a kind of connecting rod.
  • the lifting drive 22 includes a means of a rotary drive 18 (eg a hydraulic motor) rotatably driven eccentric shaft 17 which is rotatably supported in bearings 19 in the screed B and not shown in the coupling 16, rotatably arranged eccentric carries from the rotation of the couplings 16 (FIG. Eccentricities e1, e2), the strokes of the Tamperangnabites 13a are derived.
  • the tamper strip section 13a can be displaceably guided, for example, on the front side of the screed plate 12.
  • an actuator 20 is further provided, with which the respective eccentricity e1, e2 can be rotated relative to the eccentric shaft 17 and / or the coupling 16, by means of the adjustment E. This is derived from the eccentricity e1, e2 stroke h of Tamperangnabitess, eg 13a, changed. If the frequency is also to be changed, the adjusting device E also controls the rotary drive 18 individually, in the case of a hydraulic motor, for example via a flow control valve. If the eccentricities e1 and e2 are equal, the couplings 16 may be rigidly connected to the tamper strip portion 13a.
  • the eccentricities e1 and e2 are differentially adjustable in order to set a continuous variation of the stroke a of the tamper strip portion 13a over its length, it is expedient to provide at least one joint 21 having at least one degree of freedom (eg a hinge or a hinge) predetermined bending point).
  • Fig. 4 illustrates another embodiment of the lifting drive 22 for the Tamperangnabites 13 a.
  • the reciprocating drives 23 are, for example, hydraulically operated against return springs pressure pulse cylinder, eg (spring-loaded cylinder) although hydraulically double-acting cylinder would be used.
  • the hydraulic actuation takes place via control members 18 from a pressure source 27, wherein the adjusting device E acts on the control members 28.
  • Fig. 5 illustrates a special form of a screed B, which is designed to install the ceiling layer 3 with a concave parabolic surface profile P, for example, on an at least largely flat Planum 6.
  • the tamper device T or its tamper strip 13 is subdivided over the installation width into a plurality of sections which, for example, as well as the screed plate, define the parabolic profile P and are coupled to individual lifting drives 22.
  • the strokes of the Tamper instrumentalnabête 13a can be varied over the pave width b, adapted to the parabolic profile P so that locally different compression powers are generated so that over the pave width b substantially results in a constant degree of compaction.
  • the adjustment device E is actuated either by the vehicle driver or an operator on the screed B or operates automatically and / or uses signals from sensors, not shown, which determine the relevant installation parameters.
  • the setting means E works with stored characteristics or maps which have been previously determined and under which a selection can be made, and are also inputs, e.g. as setpoints, processed, e.g. in a computerized and optionally programmable control system.
  • the invention thus offers the paver F and the screed B a tool and the ability to respond to locally different installation thicknesses and installation speeds within the working width with locally different settings at least for the hub and possibly also the frequency of the tamper.
  • the screed B of Fig. 2 In order to achieve an even higher resolution, more tamper strip sections than shown, each with its own lifting drives or stroke adjusting options, could be provided in the pull-out screed parts 14, each widening part 15, and in the base screed 9 or each base screed part 9a, 9b.

Description

Die Erfindung betrifft ein Verfahren gemäß Oberbegriff des Patentanspruchs 1 sowie einen Straßenfertiger gemäß Oberbegriff des Patentanspruchs 5.The invention relates to a method according to the preamble of patent claim 1 and a road finisher according to the preamble of claim 5.

Ein Verfahren gemäß Oberbegriff des Patentanspruchs 1 und ein Straßenfertiger gemäß Oberbegriff des Patentanspruchs 5 sind jeweils aus US 2002/0141823 A1 bekannt. Bei der zum Durchführen des Verfahrens eingesetzten Einbaubohle der US 2002/0141823 A1 eingesetzten Einbaubohle besteht die Tamperleiste der über die Einbaubreite durchgehenden Tampervorrichtung aus separaten, quer zur Einbaufahrtrichtung aneinander anschließenden Tamperleistenabschnitten. Jeder Tamperleistenabschnitt wird von mindestens einem Steuernocken angetrieben. Die Steuernocken aller Tamperleislenabschnitte sind auf einer gemeinsamen Antriebswelle angeordnet, die in der Einbaubohle abgestützt und angetrieben wird. Die Steuernocken sind paarweise zueinander phasenversetzt, so dass die Tamperleistenabschnitte zueinander phasenversetzt vorverdichten. Die Hübe und Frequenzen sind unter den Tamperleistenabschnitten gleich, so dass über die gesamte Einbaubreite quer zur Arbeitsfahrtrichtung eine gleichförmige Vorverdichtungsleistung erzeugt wird. Der Hub kann jeweils durch Austausch der Steuernocken in einer Betriebsunterbrechung geändert werden. Die Frequenz kann für alle Tamperleisteabschnitte über die Drehzahl des Antriebsmotors der Antriebswelle gewählt werden.A method according to the preamble of claim 1 and a paver according to the preamble of claim 5 are each made US 2002/0141823 A1 known. In the screed used for carrying out the method of US 2002/0141823 A1 screed used consists of the tamper strip of the pave width through continuous tamper from separate, transverse to the installation direction adjacent tamper strip sections. Each Tamperleistenabschnitt is driven by at least one control cam. The control cams of all Tamperleislenabschnitte are arranged on a common drive shaft which is supported and driven in the screed. The control cams are paired out of phase with each other, so that the tamper strip sections precompress each other out of phase. The strokes and frequencies are the same under the Tamperleistenabschnitten, so over the entire paving width transverse to the working direction a uniform Vorverdichtungsleistung is generated. The stroke can be changed by replacing the control cams in a business interruption. The frequency can be selected for all Tamperleisteabschnitte on the speed of the drive motor of the drive shaft.

Beim Einbauen einer Deckenschicht, insbesondere aus bituminösem Einbaumaterial oder auch aus Beton-Einbaumaterial, ist ein relativ kleiner positiver Anstellwinkel der Einbaubohle bzw. des Glättblechs im Hinblick auf eine gleichmäßige Verdichtung und gute Oberflächenebenheit anzustreben. Ein positiver Anstellwinkel bedeutet, dass die in Arbeitsfahrtrichtung vorne liegende Kante der Einbaubohle, in deren Bereich die Tampervorrichtung das Einbaumaterial verdichtet, höher über dem Planum liegt, als die in Einbauarbeitsfahrtrichtung hinten liegende Kante der Einbaubohle. Der positive Anstellwinkel soll möglichst konstant gehalten werden, weil er die Belagstärke beeinflusst. Je höher die von der Tampervorrichtung eingebrachte Verdichtungsleistung ist, desto höher ist die lokale Verdichtung, und umgekehrt. Die Verdichtungsleistung ist, da Arbeitsparameter wie das Gewicht der Einbaubohle und die Verdichtungswilligkeit des Einbaumaterials relativ konstant sind, primär abhängig vom Hub und auch, wenn auch etwas geringer, von der Frequenz der Tampervorrichtung. Sinkt bei konstantem Hub und konstanter Frequenz der Tampervorrichtung die Einbaugeschwindigkeit, dann steigt die Verdichtungsleistung lokal an, wodurch wegen der dann lokal zunehmenden Verdichtung die Einbaubohle steigt, sich der Anstellwinkel unerwünscht verkleinert und die Belagstärke wächst. Umgekehrt nimmt die lokale Verdichtungsleistung bei Steigerung der Einbaugeschwindigkeit ab, so dass die Einbaubohle wegen der dann geringeren Verdichtung sinkt, sich der Anstellwinkel unerwünscht vergrößert und die Einbaustärke abnimmt. Deshalb ist anzustreben, beim Einbauen weitgehend unabhängig von Einbauparametern, wie z.B. der Einbaugeschwindigkeit, eine konstante Verdichtung zu erzeugen, um den Anstellwinkel der Einbaubohle nicht oder so wenig wie möglich zu verändern.When installing a ceiling layer, in particular from bituminous paving material or from concrete paving material, a relatively small positive angle of attack of the screed or the screed plate with respect to a uniform compaction and good surface flatness is desirable. A positive angle of attack means that the leading edge of the screed in the working direction, in the area of which the tamper device compresses the paving material, is higher above the level than the edge of the paving screed located at the rear in the working travel direction. The positive angle of attack should be kept as constant as possible, because it influences the lining thickness. The higher the compaction power introduced by the tamper device, the higher the local compaction, and vice versa. The compaction performance, since working parameters such as the weight of the screed and the compaction willingness of the paving material are relatively constant, is primarily dependent on the stroke and also, albeit somewhat less, on the frequency of the tamper device. If the installation speed drops at a constant stroke and constant frequency of the tamper device, then the compaction performance increases locally on, which then increases because of the then locally increasing compaction, the screed, the angle of attack undesirably reduced and the lining thickness increases. Conversely, the local compaction performance decreases with increasing installation speed, so that the screed decreases because of the then lower compression, the angle of attack increases undesirably and the installation thickness decreases. Therefore, it is desirable to produce a constant compression during installation largely independent of installation parameters, such as the installation speed, in order not to change the angle of attack of the screed or as little as possible.

Zum Einbau in einer Deckenschicht werden unterschiedliche Typen von Einbaubohlen verwendet. Eine sogenannte starre Einbaubohle hat eine feste Einbaubreite, die beim Einbau nicht veränderbar ist. Die Einbaubreite der starren Einbaubohle lässt sich dadurch stufenweise vergrößern, dass an den Enden der starren Einbaubohle Verbreiterungsteile angebaut werden. Jeder Verbreiterungsteil weist ebenfalls eine Tampervorrichtung und ein Glättblech auf, gegebenenfalls bestückt mit einem Unwuchtvibrator. Alternativ zur starren Einbaubohle wird eine Auszieheinbaubohle dann verwendet, wenn die Einbaubreite während des Einbaus zu variieren ist. In der Auszieheinbaubohle sind an einer Grundbohle mit fester Einbaubreite beidseitig Ausziehbohlenteile aus- und einfahrbar angeordnet. Die Grundbohle wie die Ausziehbohlenteile weisen jeweils Tampervorrichtungen auf. Reicht die maximale Einbaubreite der Auszieheinbaubohle nicht aus, dann können an den Enden der Ausziehbohlenteile wiederum Verbreiterungsteile angebaut werden, die ebenfalls jeweils mit einer Tampervorrichtung und einem Glättblech ausgestattet sind. Bei allen Einbaubohlentypen wird die Tampervorrichtung über die gesamte Einbaubreite mit gleichem Hub und gleicher Frequenz betrieben.For installation in a ceiling layer different types of screeds are used. A so-called rigid screed has a fixed pave width, which is not changeable during installation. The pave width of the rigid paving screed can be gradually increased by widening parts at the ends of the rigid paving screed. Each widening part also has a tamper device and a screed plate, optionally equipped with an unbalance vibrator. As an alternative to the rigid screed, an extraction screed is used if the paving width is to vary during installation. In the pull-out screed, pull-out screed parts are arranged on both sides of a base screed with a fixed paving width. The base screed as the Ausziehbohlenteile each have tamper devices. If the maximum installation width of the pull-out screed is insufficient, widening parts can be added to the ends of the pull-out screed parts, which are also equipped with a tamper device and a screed plate. For all screed types, the tamper device is operated over the entire paving width with the same stroke and frequency.

Beim Einbauen von Deckenschichten, insbesondere aus bituminösem Einbaumaterial, ist es häufig erforderlich, eine Deckenschicht mit quer zur Einbauarbeitsfahrtrichtung variabler Einbaustärke einzubauen, z.B. wenn die Oberfläche der Deckenschicht und/oder das Planum eine Querneigung hat, oder ein Dachprofil oder ein Sonderprofil, beispielsweise mit einem konkavparabolischen Verlauf erzeugt werden soll oder Unebenheiten im Planum auszugleichen sind. Ferner variiert beim Einbau einer Deckenschicht in einem Verkehrskreisel oder entlang einer engen Kurve die Einbaugeschwindigkeit zwangsweise über die Einbaubreite. Beide Einflüsse, d.h. die variierende Einbaustärke oder die variierende Einbaugeschwindigkeit, führen alternativ oder additiv bei konstantem Hub und gegebenenfalls auch konstanter Frequenz der Tampervorrichtung über die Einbaubreite zu unerwünschten Reaktionen in der Endqualität der Deckenschicht, wie ungewollten Variationen der Einbaustärke und/oder über die Einbaubreite unterschiedlichen Verdichtungsgraden. Diese unerwünschten Reaktionen bzw. Qualitätseinbußen sind bisher als unvermeidlich zu akzeptieren.When installing ceiling layers, in particular from bituminous paving material, it is often necessary to install a ceiling layer with variable installation thickness transverse to the installation working direction, for example if the surface of the ceiling layer and / or the planum has a bank, or a roof profile or a special profile, for example with a concave-parabolic course should be generated or unevenness in the planum are to be compensated. Furthermore, when installing a ceiling layer in a roundabout or along a tight bend, the paving speed will vary forcibly over the paving width. Both influences, ie the varying installation thickness or the varying installation speed, lead alternatively or additively at constant stroke and optionally also constant frequency of the tamper device over the installation width to undesirable reactions in the final quality of the ceiling layer, such as unwanted variations in the installation thickness and / or the installation width different levels of compaction. These undesirable reactions or loss of quality have so far been unavoidable.

Bei der aus DE 41 39 702 C2 bekannten Einbaubohle ist der Winkel zwischen der Richtung, in der die Tampervorrichtung verdichtet, und z.B. dem Glättblech der Einbaubohle verstellbar, um die Verdichtungsleistung an härteres oder weicheres Einbaumaterial anzupassen. Jedoch ist die Verdichtungsleistung jeweils über die gesamte Einbaubreite gleich.At the DE 41 39 702 C2 known screed is the angle between the direction in which compresses the tamper, and eg the screed plate of the screed adjustable to adjust the compaction performance of harder or softer paving material. However, the compaction performance is the same over the entire pave width.

Bei dem aus DE 40 40 029 C1 bekannten Verfahren wird die Frequenz der Tampervorrichtung der Einbaubohle entlang einer Sollwertkurve nach der Ist-Einbaugeschwindigkeit geregelt, um die Verdichtungsleistung der Tampervorrichtung unabhängig von Änderungen der Einbaugeschwindigkeit im Wesentlichen konstant zu halten, d.h. mit abnehmender Einbaugeschwindigkeit die Frequenz zu verringern und mit zunehmender Einbaugeschwindigkeit zu erhöhen. Der Hub der Tampervorrichtung bleibt dabei über die Einbaubreite unverändert. Alternativ kann, bei einer Einbauunterbrechung, der Hub der Tampervorrichtung manuell schrittweise geändert werden. Da die Regelung der Frequenz der Tampervorrichtung jedoch auch über die gesamte Einbaubreite gleichartig erfolgt, wird den Anforderungen an über die Einbaubreite variierende Einbaustärke oder Einbaugeschwindigkeit nicht Rechnung getragen.At the DE 40 40 029 C1 known method, the frequency of the tamper device of the screed along a setpoint curve according to the actual installation speed is controlled to keep the compaction performance of the tamper device regardless of changes in the installation speed substantially constant, ie with decreasing installation speed to reduce the frequency and increase with increasing installation speed. The stroke of the tamper device remains unchanged over the pave width. Alternatively, in case of an installation interruption, the stroke of the tamper device can be manually changed stepwise. However, since the regulation of the frequency of the tamper device is also the same over the entire paving width, the requirements for varying installation thickness or paving speed over the paving width is not taken into account.

Bei dem aus DE 19 836 269 C1 bekannten Straßenfertiger wird die Frequenz der Tampervorrichtung in Abhängigkeit von Änderungen des positiven Anstellwinkels der Einbaubohle variiert, und zwar so, dass der Anstellwinkel die Frequenz proportional regelt, um negative Einflüsse von Änderungen der Einbaugeschwindigkeit zu kompensieren. Auch hierbei erfolgt die Frequehzvariation gleichmäßig über die gesamte Einbaubreite.At the DE 19 836 269 C1 known paver, the frequency of the tamper device in response to changes in the positive angle of attack of the screed is varied, in such a way that the angle of attack controls the frequency proportional to compensate for adverse effects of changes in paving speed. Here, too, the frequency variation takes place uniformly over the entire installation width.

Aus der technischen Informationsschrift " Vögele - Für jede Aufgabe die richtige Einbaubohle", veröffentlicht von der Firma Josef Vögele AG, Neckarauerstr.168-228, D-68146 Mannheim, Nr. 2400/10, gedruckt im Februar 1997 , insbesondere auf Seiten 4 und 5, sind Tampervorrichtungen mit hydraulisch angetriebenen Tamperleisten bekannt, deren Arbeitsfrequenz über die Antriebsdrehzahl des Hydraulikantriebs und deren Hub durch manuelle Verstellung der jeweils wirksamen Exzentrizität einer Exzenter-Antriebswelle verstellbar sind. Ferner ist daraus bekannt, dass auch das Glättblech der Einbaubohle mit einem Unwuchtvibrator bestückt sein kann, dessen Frequenz durch Drehzahlregelung variabel ist. Ferner kann die Tampervorrichtung nur eine Vorverdichtung des Einbaumaterials erzeugen, und wird gegebenenfalls dann in Arbeitsfahrtrichtung hinter dem Glättblech mit hydraulisch beaufschlagten Pressleisten eine Endverdichtung durchgeführt. Auf Seite 6 wird darauf hingewiesen, dass der Hub der Tampervorrichtung die maximal mögliche Zusammendrückung, d.h. den Verdichtungsgrad bestimmt und in Schritten manuell auf unterschiedliche Hubwerte einstellbar ist, wobei sich der erreichte Verdichtungsgrad sogar auch durch Erhöhen der Hubfrequenz steigern lässt.From the technical information document " Vögele - The right screed for every task ", published by Josef Vögele AG, Neckarauerstr. 1668-228, D-68146 Mannheim, No. 2400/10, printed in February 1997 , in particular pages 4 and 5, tamper devices with hydraulically driven tamper bars are known whose working frequency on the drive speed of the hydraulic drive and its stroke by manual adjustment of the respective effective eccentricity of an eccentric drive shaft are adjustable. Furthermore, it is known that the screed plate screed may be equipped with an unbalanced vibrator whose frequency is variable by speed control. Furthermore, the tamper device can only produce a pre-compression of the built-in material, and is then optionally performed in working direction behind the screed plate with hydraulically applied pressure bars a final compression. On page 6 it is pointed out that the stroke of the tamper device determines the maximum possible compression, ie the degree of compaction, and is manually adjustable in steps to different stroke values, whereby the degree of compression achieved can even be increased by increasing the stroke frequency.

Bei der aus US 4 828 428 A bekannten Einbaubohle sind in Arbeitsfahrtrichtung vor dem Glättblech der Einbaubohle zwei zumindest über die Arbeitsbreite eines Einbaubohlenteils durchgehende Tamperleisten vorgesehen, die von einem gemeinsamen Antrieb oder von getrennten Antrieben betätigt werden. Der Hub und/oder die Frequenz der Tamperleiste sind über die Einbaubreite des Einbaubohlenteils gleich. Die Hübe und das relative Timing der Tamperleisten kann eingestellt werden. Zur Änderung des Timings wird entweder eine Steuerkette umgesetzt oder ausgetauscht. Zur Änderung des Hubs in Schritten werden die jeweiligen exzentrischen Antriebsglieder auf der Antriebswelle ausgewechselt. Eine Variation des Hubs und/oder der Frequenz innerhalb der Einbaubreite des Einbaubohlenteils und quer zur Arbeitsfahrtrichtung wird nicht erläutert.At the US 4,828,428 A known screed are provided in working direction in front of the screed plate screed two at least over the working width of a screed part continuous tamper bars, which are actuated by a common drive or separate drives. The stroke and / or the frequency of the tamper strip are the same across the installation width of the screed part. The strokes and the relative timing of the tamper bars can be adjusted. To change the timing either a timing chain is implemented or replaced. To change the stroke in steps, the respective eccentric drive links on the drive shaft are replaced. A variation of the stroke and / or the frequency within the installation width of the screed part and transverse to the working direction is not explained.

Bei der aus US 6 019 544 A bekannten Einbaubohle sind an der Grundbohle und den Ausziehbohlen keine Tampervorrichtungen vorgesehen, sondern nur an Bohlenverlängerungsteilen, die an entweder in Ausziehbohlenteilen oder der Grundbohle außen montiert werden, Tampervorrichtungen vorgesehen. Diese Tampervorrichtungen mit einer sich nur im äußersten Randbereich der Deckenschicht quer zur Arbeitsfahrtrichtung erstreckenden Tamperleiste dienen zum Vorverdichten der Ränder der Deckenschicht. Jede Tamperleiste ist innenliegend im Bohlenverlängerungsteil um eine in Arbeitsfahrtrichtung orientierte Achse schwenkbar gelagert und wird am außen liegenden Ende von einem Kurbelbetrieb betätigt und um die Schwenkachse auf und ab verschwenkt. Der auf das äußere Ende der Tamperleiste aufgebrachte Hub ist nach Demontage von Abdeckungen und Verstellen eines Spannschlosses manuell veränderbar. Eine über die Arbeitsbreite variierende Einbaustärke und/oder Einbaugeschwindigkeit wird nicht erwähnt.At the US Pat. No. 6,019,544 known screed tamping devices are provided on the base board and the Ausziehbohlen, but only on screed extension parts, which are mounted on either Ausziehbohlenteilen or the base board on the outside, provided Tampervorrichtungen. These tamper devices with a tamper strip extending transversely to the working direction only in the outermost edge region of the ceiling layer serve to pre-compact the edges of the ceiling layer. Each Tamperleiste is pivotally mounted inside the screed extension part about an axis oriented in the direction of travel and is actuated at the outer end of a crank operation and pivoted about the pivot axis up and down. The applied to the outer end of the tamper bar stroke is manually changed after disassembly of covers and adjusting a turnbuckle. An installation thickness and / or installation speed varying over the working width is not mentioned.

Schließlich ist bereits vorgeschlagen worden (europäische Patentanmeldung mit der Anmeldungsnummer 09014516 und älterem Zeitrang) für einen Exzenter-Hubantrieb einer Tamperleiste der Tampervorrichtung einer Einbaubohle eine fernsteuerbare Einstelleinrichtung vorzusehen, mit der sich der Hub abhängig von sich ändernden Einbauparametern selbst im Einbaubetrieb über die gesamte Einbaubreite verändern lässt.Finally, it has already been proposed (European patent application with the application number 09014516 and older seniority) for an eccentric lifting drive of a tamper strip of the tamper device of a screed to provide a remotely controllable adjuster with which the hub can be changed depending on changing mounting parameters even during installation over the entire installation width.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art sowie einen zum Durchführen des Verfahrens geeigneten Straßenfertiger anzugeben, mit denen es möglich ist, trotz unvermeidbarer Einflüsse über die Einbaubreite variierender Einbaustärke und/oder Einbaugeschwindigkeit die Endqualität der Deckenschicht in und quer zur Arbeitsfahrtrichtung weitestgehend konstant zu halten.The invention has for its object to provide a method of the type mentioned above and a method suitable for carrying out the method road paver, with which it is possible, despite unavoidable influences on the installation width varying installation thickness and / or speed of installation the final quality of the ceiling layer in and transverse to the working direction to keep as constant as possible.

Die gestellte Aufgabe wird verfahrensgemäß mit den Merkmalen des Patentanspruchs 1 und mit dem Straßenfertiger mit den Merkmalen des Patentanspruchs 5 gelöst.The stated object is achieved according to the method with the features of claim 1 and with the paver with the features of claim 5.

Verfahrensgemäß ist es erstmals möglich, zumindest die Tamperleistenabschnitte der Tampervorrichtung über die Einbaubreite und somit quer zur Arbeitsfahrtrichtung mit variablem Hub und/oder variabler Frequenz unterschiedlich zu betreiben, und auf diese Weise die Verdichtungsleistung innerhalb der Einbaubreite auf lokal unterschiedliche Einbaustärken und Einbaugeschwindigkeiten ferngesteuert so abzustimmen, dass sich in der eingebauten Deckenschicht in der und quer zur Arbeitsfahrtrichtung mit variabler Verdichtungsleistung eine konstant hohe und gleichbleibende Qualität ergibt. Die Einstellung der Hübe und/oder Frequenzen innerhalb der Einbaubreite ist in den Abschnitten der Tampervorrichtung in Schritten oder stufenlos vorzunehmen. Selbst bei abschnittsweiser Variation lässt sich eine relativ gute Anpassung an Schwankungen der Einbaustärke bzw. Einbaugeschwindigkeit über die Einbaubreite erzielen, da solche Schwankungen im Regelfall nicht abrupt sondern relativ stetig oder harmonisch sind. Die lokale Verdichtungsleistung der Tampervorrichtung wird sozusagen innerhalb der Einbaubreite auf die lokalen Gegebenheiten, wie die lokale Einbaustärke oder/und Einbaugeschwindigkeit eingestellt, so dass letztendlich über die gesamte Einbaubreite die Einbaubohle mit dem gewünschten positiven, relativ kleinen und im Wesentlichen konstanten Anstellwinkel arbeitet, und die Verdichtung über die Arbeitsbreite individuell angepasst variiert erzeugt wird. Primär werden zumindest die Hübe der Tamperleistenabschnitte der Tampervorrichtung quer zur Arbeitsfahrtrichtung unterschiedlich eingestellt. Auch die Frequenzen innerhalb der Einbaubreite zu variieren, kann als flankierende Maßnahme vorteilhaft sein.According to the method, it is now possible for at least the tamper strip sections of the tamper device to be operated differently over the installation width and thus transversely to the working direction with variable lift and / or variable frequency, and thus to remotely tune the compression power within the installation width to locally different installation thicknesses and installation speeds, that results in the built-in ceiling layer in and across the working direction with variable compaction performance, a consistently high and consistent quality. The adjustment of the strokes and / or frequencies within the paving width is to be carried out in steps or continuously in the sections of the tamper device. Even with section-wise variation, a relatively good adaptation to fluctuations in the installation thickness or installation speed over the installation width can be achieved, since such fluctuations are generally not abrupt but relatively steady or harmonious. The local compaction performance of the tamper device is set as it were within the paving width on the local conditions, such as the local installation thickness and / or installation speed, so that ultimately over the entire pave width screed with the desired positive, relatively small and substantially constant angle of attack works, and Compression over the working width adjusted individually varies. Primarily, at least the strokes of the tamper strip sections of the tamper device are adjusted differently transversely to the working direction. Also to vary the frequencies within the pave width, may be advantageous as an accompanying measure.

Mit der Einstelleinrichtung, die der Straßenfertiger oder die Einbaubohle mit einer Möglichkeit zum ferngesteuerten Ändern des Hubs und/oder Einstellen der Frequenz der Tamperleistenabschnitte aufweist, lässt sich die innerhalb der Einbaubreite von den Tamperleistenabschnitten erzeugte Verdichtungsleistung so variieren, wie es die lokale Einbaustärke und/oder Einbaugeschwindigkeit erfordert. Über die Einstelleinrichtung wird der Hub der Tampervorrichtung über die Einbaubreite in Anpassung an lokale Einbauparameter ferngesteuert variiert und/oder wird für jeden Tamperleistenabschnitt über die Einbaubreite eine unterschiedliche Frequenz eingestellt. Die Variation kann bereits vor Einbaubeginn eingestellt werden; die Einstellungen sind jedoch auch während des Einbaubetriebs jederzeit durchführbar. Die Einstelleinrichtung bietet entweder ein vom Fahrzeugführer nutzbares oder ein automatisch arbeitendes Werkzeug, um auf quer zur Arbeitsfahrtrichtung lokal unterschiedliche Einbaustärken und Einbaugeschwindigkeiten mit lokal unterschiedlichen Einstellungen der Hübe und/oder der Frequenzen der Tamperleistenabschnitte der Tampervorrichtung zu reagieren. Die Endqualität einer mit dem Straßenfertiger eingebauten Deckenschicht ist trotz quer zur Arbeitsfahrtrichtung variierender Einbaustärke und/oder Einbaugeschwindigkeit gleichmäßig hoch.With the adjustment that has the paver or the screed with a way to remotely change the stroke and / or adjusting the frequency of tamper strip sections, the compaction power generated within the pave width of the Tamperleistenabschnitten can vary as the local thickness and / or Installation speed required. About the setting of the stroke of the tamper device is varied remotely controlled over the installation width in adaptation to local installation parameters and / or set a different frequency for each Tamperleistenabschnitt on the pave width. The variation can be set before the start of installation; However, the settings can also be carried out at any time during the installation operation. The adjuster provides either a vehicle operator usable or an automatically operating tool to respond to transversely to the working direction locally different installation thicknesses and installation speeds with locally different settings of the strokes and / or the frequencies of Tamperleistenabschnitte the tamper device. The final quality of a built-in pavement with the paver is uniformly high, despite varying installation thickness and / or installation speed across the working direction.

Die Frequenzen der Tamperleistenabschnitte der Tampervorrichtung können mittels der Einstelleinrichtung auch für die Hübe oder mittels einer zusätzlichen Einstelleinrichtung nur für die Frequenzen innerhalb der Einbaubreite lokal unterschiedlich einstellbar sein, vorzugsweise automatisch.The frequencies of the tamper strip sections of the tamper device may also be locally differently adjustable, preferably automatically, by means of the setting device for the strokes or by means of an additional setting device only for the frequencies within the installation width.

Bei einer zweckmäßigen Ausführungsform des Verfahrens wird der Verlauf der Einbaustärke und/oder der Oberfläche des Planums und/oder der Einbaugeschwindigkeit festgestellt und der Hub und/oder die Frequenz der Tampervorrichtung unter Berücksichtigung des festgestellten Verlaufs quer zur Arbeitsfahrtrichtung lokal variiert: Zur Feststellung können Daten des Planums, der Einstellungen der Einbaubohle und Ist-Messwerte von entsprechend platzierten Sensoren herangezogen werden, um die Variation vorbereitend oder zeitlich im Wesentlichen unverzögert zu steuern oder zu regeln, entweder geführt durch den Fahrzeugführer oder in einem automatschen Ablauf mittels einer computerisierten Steuer- und/oder Regelvorrichtung.In an expedient embodiment of the method, the course of the installed thickness and / or the surface of the tarmac and / or the installation speed is determined and varies the stroke and / or the frequency of the tamper device locally taking into account the determined course across the working direction Planums, the settings of the screed and actual measurements of appropriately placed sensors are used to control the variation or preparatory or temporally substantially instantaneously, either guided by the driver or in an automated process by means of a computerized control and / or control device.

Besonders zweckmäßig werden die Hübe und/oder Frequenzen bei laufendem Einbau eingestellt, um zusätzlich auch Änderungen der Einbaustärke bzw. Einbaugeschwindigkeit in Arbeitsfahrtrichtung Rechnung tragen zu können.The strokes and / or frequencies are set particularly expediently during ongoing installation in order to additionally be able to take into account changes in the installed thickness or speed of installation in the working direction of travel.

Ein automatisches Einstell- oder Regelsystem kann mit vorbestimmten Kennlinien oder Kennfeldern für die Hübe und/oder Frequenzen betrieben werden. Die automatisch betriebene Einstelleinrichtung kann sich der Signale entsprechend platzierter Sensoren und eingegebener Informationen bedienen, die den jeweiligen Istzustand der Einbauverhältnisse bzw. Einbauparameter oder deren Änderungen abbilden.An automatic adjustment or control system can be operated with predetermined characteristics or maps for the strokes and / or frequencies. The automatically operated adjustment device can use the signals corresponding to placed sensors and input information that represent the respective actual state of the installation conditions or installation parameters or their changes.

Bei einer zweckmäßigen Ausführungsform ist der jeweilige Hubantrieb ein Pleuel-Exzenterantrieb mit einer drehantreibbaren Exzenterwelle. Alternativ könnte auch ein Kniehebel-Exzenterantrieb vorgesehen sein. Mittels der Einstelleinrichtung ist das Ausmaß der Exzentrizität und/oder die Antriebsdrehzahl der Exzenterwelle für zumindest einen Tamperleistenabschnitt individuell einstellbar.In an expedient embodiment, the respective lifting drive is a connecting rod eccentric drive with a rotatably driven eccentric shaft. Alternatively, a toggle eccentric drive could be provided. By means of the adjusting device, the extent of the eccentricity and / or the drive speed of the eccentric shaft for at least one Tamperleistenabschnitt is individually adjustable.

Bei einer anderen Ausführungsform ist der jeweilige Hubantrieb ein hydraulischer Hubzylinder-Antrieb, wobei mittels der Einstelleinrichtung der Kolbenhub und/oder die Kolbentaktfrequenz zumindest für einen Tamperleistenabschnitt einstellbar ist, vorzugsweise durch Verstellen des Drucks und/oder der Menge pro Druckimpuls und/oder der Druckimpulsfrequenz der Hydraulikbeaufschlagung des Hubzylinderantriebs,.In another embodiment, the respective lifting drive is a hydraulic lifting cylinder drive, wherein by means of the adjustment of the piston stroke and / or the piston stroke frequency is adjustable at least for a Tamperleistenabschnitt, preferably by adjusting the pressure and / or the amount per pressure pulse and / or the pressure pulse frequency of Hydraulic loading of the lifting cylinder drive ,.

In den letztgenannten Fällen kann es zweckmäßig sein, wenn jeder Tamperleistenabschnitt über mindestens zwei den Hub und die Frequenz des Hubantriebs übertragende Kopplungen mit dem Hubantrieb gekoppelt ist. Für die Kopplungen dieses Tamperleistenabschnitts können gleiche oder sogar auch unterschiedliche Hübe eingestellt werden. Werden unterschiedliche Hübe eingestellt, kann vorzugsweise, bei jeder Kopplung, ein Gelenk mit mindestens einem Freiheitsgrad vorgesehen sein. In diesem Fall wird zumindest der Hub über die Länge des Tamperleistenabschnitts kontinuierlich variiert, gegebenenfalls bei konstanter Frequenz. Um dann eine Verschränkung des Tamperleistenabschnitts relativ zum Hubantrieb zu ermöglichen, kann das Gelenk ein Scharnier oder dgl. oder auch nur eine Sollbiegestelle sein.In the latter cases, it may be expedient if each Tamperleistenabschnitt is coupled via at least two the hub and the frequency of the lifting drive transmitting couplings with the lifting drive. For the couplings of this Tamperleistenabschnitts same or even different strokes can be adjusted. If different strokes are set, a joint with at least one degree of freedom can preferably be provided for each coupling. In this case, at least the stroke is continuously varied over the length of the Tamperleistenabschnitts, optionally at a constant frequency. In order then to enable an entanglement of the Tamperleistenabschnitts relative to the lifting drive, the hinge may be a hinge or the like. Or even a predetermined bending point.

Anhand der Zeichnungen werden Ausführungsformen des Erfindungsgegenstandes erläutert. Es zeigen

Fig. 1
eine schematische Seitenansicht eines Straßenfertigers beim Einbauen einer Deckenschicht mit einer Einbaubohle,
Fig. 2
eine schematische Frontansicht beispielsweise der Einbaubohle von Fig. 1 beim Einbauen einer Deckenschicht mit über die Einbaubreite variierender Einbaustärke,
Fig. 3
einen Teilabschnitt einer Tampervorrichtung der Einbaubohle in schematischer Vorderansicht,
Fig. 4
einen Teilabschnitt einer Tampervorrichtung der Einbaubohle in schematischer Vorderansicht, und
Fig. 5
eine schematische Vorderansicht einer Einbaubohle beim Einbauen einer Deckenschicht mit einem konkaven Parabolprofil.
With reference to the drawings, embodiments of the subject invention will be explained. Show it
Fig. 1
a schematic side view of a paver when installing a ceiling layer with a screed,
Fig. 2
a schematic front view, for example, the screed of Fig. 1 when installing a ceiling layer with installation thickness varying over the installation width,
Fig. 3
a partial section of a tamper device of the screed in a schematic front view,
Fig. 4
a partial section of a tamper assembly of the screed in a schematic front view, and
Fig. 5
a schematic front view of a screed when installing a ceiling layer with a concave parabolic profile.

In Fig. 1 schleppt ein Straßenfertiger F an seitlichen Zugholmen 1 eine Einbaubohle B, die schwimmend mit einem kleinen positiven Anstellwinkel α relativ zu einem Planum 6 auf vorgelegtem unverdichtetem Einbaumaterial 4, z.B. bituminösem Einbaumaterial, mit einer Einbaugeschwindigkeit V in Arbeitsfahrtrichtung R bewegt wird, und eine geglättete und verdichtete Deckenschicht 3 in einer Einbaustärke D auf dem Planum 6 einbaut. Der die Einbaustärke D mit beeinflussende Anstellwinkel α ist unter anderem durch Höhenverstellen vorderer Anlenkpunkte der Zugarme 1 am Straßenfertiger F mittels Hydraulikzylindern 2 eingestellt und soll beim Einbau möglichst konstant gehalten werden.In Fig. 1 travels a paver F on lateral Zugholmen 1 a screed B, which is floating with a small positive angle α relative to a Planum 6 on submitted uncompressed installation material 4, eg bituminous paving material, with a paving speed V in working direction R is moved, and a smoothed and compacted Ceiling layer 3 in a built-in thickness D on the Planum 6 is installed. The installation thickness D with influencing angle of attack α is adjusted inter alia by height adjustment front articulation points of the traction arms 1 on the paver F by means of hydraulic cylinders 2 and should be kept as constant as possible during installation.

In Arbeitsfahrtrichtung R vor der Einbaubohle ist eine Querverteilvorrichtung 5. für das unverdichtete Einbaumaterial 4 vorgesehen. Die Einbaubohle weist an der in Arbeitsfahrtrichtung vorderen Seite eine Tampervorrichtung T auf, mit der das Einbaumaterial 4 verdichtet wird. Ferner ist an der Unterseite der Einbaubohle B ein Glättblech 12 vorgesehen, das die Oberfläche der Deckenschicht 3 glättet und, wie angedeutet, gegebenenfalls mit Unwuchtvibratoren bestückt ist, die der Tampervorrichtung T bei der Verdichtung assistieren.In working direction R in front of the screed, a transverse distribution device 5 is provided for the uncompressed installation material 4. The screed has on the front in working direction side tamper T, with the built-in material 4 is compressed. Furthermore, a screed plate 12 is provided on the underside of the screed B, which is the Surface of the ceiling layer 3 smoothes and, as indicated, optionally equipped with unbalanced vibrators that assist the tamper device T in the compression.

Die Einbaubohle B kann, falls zweckmäßig, auch in Arbeitsfahrtrichtung hinter dem Glättblech 12 eine Hochverdichtungseinrichtung (nicht gezeigt) mit hydraulisch beaufschlagbaren Pressleisten aufweisen.The screed B can, if appropriate, also in working direction behind the screed plate 12 a high compression device (not shown) having hydraulically acted pressure bars.

An der Einbaubohle B kann ein Außensteuerstand 7 vorgesehen sein, während der Stra-βenfertiger F in einem Führerstand eine Steuerkonsole 8 aufweist. Ferner ist in dem Stra-βenfertiger F beispielsweise bei der Steuerkonsole 8 oder/und im Außensteuerstand 7 eine Einstelleinrichtung E vorgesehen, mit der zumindest der Hub der Tampervorrichtung T (einer das Einbaumaterial 4 bearbeitenden Tamperleiste 13) über die Einbaubreite b (Fig. 2) der Einbaubohle B individuell variiert werden kann. Zweckmäßig lässt sich auch die Frequenz, mit der die Tampervorrichtung T arbeitet, mittels der Einstelleinrichtung E oder einer separaten, nicht gezeigten Einstelleinrichtung, innerhalb der Einbaubreite b individuell variieren.On the screed B, an outside control stand 7 may be provided, while the road-ready pa F in a cab has a control console 8. Furthermore, in the road-ready pawn F, for example in the control console 8 and / or in the outside steering position 7, an adjustment device E is provided with which at least the stroke of the tamper device T (a mounting material 4 processing tamper strip 13) on the pave width b ( Fig. 2 ) of the screed B can be varied individually. The frequency with which the tamper device T works can also be varied individually within the installation width b by means of the setting device E or a separate setting device (not shown).

Die Einbaubohle B kann eine starre Einbaubohle mit unveränderbarer Einbaubreite sein, an die bei Bedarf seitlich Verbreiterungsteile angebaut werden, die dann ebenfalls eine Tampervorrichtung T und ein Glättblech 12 aufweisen, wobei die Tampervorrichtung T dann funktionell mit der Einstelleinrichtung E verknüpft ist. Alternativ kann die Einbaubohle B eine Auszieheinbaubohle mit einer Grundbohle und seitlich aus- und einfahrbaren Ausziehbohlenteilen (siehe Fig. 2) sein, deren Einbaubreite b variabel ist, wobei in der Grundbohle und in den Ausziehbohlenteilen jeweils mindestens eine Tampervorrichtung T und ein Glättblech 12 vorgesehen sind. An die Ausziehbohlenteile können, falls erforderlich, weitere Verbreiterungsteile anmontiert werden, die dann ebenfalls eine Tampervorrichtung T und ein Glättblech 12 aufweisen.The screed B may be a rigid screed with invariable pave width, to the side if necessary broadening parts are grown, which then also have a tamper T and a screed 12, wherein the tamper T is then functionally linked to the adjustment E. Alternatively, the screed B a Auszieabolbaubohle with a base board and laterally extendable and retractable Ausziehbohlenteilen (see Fig. 2 ), whose paving width b is variable, wherein in the base board and in the Ausziehbohlenteilen each have at least one tamper device T and a screed plate 12 are provided. To the Ausziehbohlenteile, if necessary, further widening parts can be mounted, which then also have a tamper T and a screed plate 12.

Fig. 2 verdeutlicht die Einbaubohle B in einer Ausführung als Auszieheinbaubohle mit einer Grundbohle 9 und zwei Ausziehbohlenteilen 14. Gestrichelt ist an einer Endseite eines Ausziehbohlenteils 14 ein angebauter Verbreiterungsteil 15 angedeutet. Das Gläftblech 12 ist in dieser schematischen Darstellung als durchgehende gerade Linie dargestellt, obwohl es in Sektionen unterteilt ist. Die Tampervorrichtung T bzw. die Tamperleiste 13 der Einbaubohle B ist innerhalb der Einbaubreite b in mehrere Abschnitte 13a-13e unterteilt, beispielsweise mit jeweils einem Abschnitt in den Ausziehbohlenteilen 14, der Grundbohle 9 und im Verbreiterungsteil 15. Gestrichelt ist in der Grundbohle 9 dort eine Teilung 10 angedeutet, wo die Grundbohle 9 z.B. zum Erzeugen eines Dachprofils in der Deckenschicht-Oberfläche (nicht gezeigt) mittels eines Verstellantriebs 11 abknickbar ist. Fig. 2 illustrates the screed B in one embodiment as Auszieheinbaubohle with a base board 9 and two Ausziehbohlenteilen 14. Dashed lines on one end side of a Ausziehbohlenteils 14 a widened enlargement part 15 is indicated. The sheet 12 is shown in this schematic representation as a continuous straight line, although it is divided into sections. The tamper T or the tamper strip 13 of the screed B is subdivided within the installation width b in several sections 13a-13e, for example, each with a portion in the Ausziehbohlenteilen 14, the base board 9 and in the widening part 15. Dashed in the base board 9 there is a Division 10 indicated where the base screed 9, for example, for producing a roof profile in the ceiling layer surface (not shown) by means of an adjusting drive 11 is bent.

Die Grundbohle 9 kann einen durchgehenden Tamperleistenabschnitt 13b aufweisen. Zweckmäßig sind jedoch mindestens zwei Tamperleistenabschnitte 13b, 13c in der Grundbohle 9 vorgesehen.The base board 9 may have a continuous tamper strip section 13b. However, at least two Tamperleistenabschnitte 13 b, 13 c are expediently provided in the base board 9.

Die auf dem Planum 6 eingebaute Deckenschicht 3 hat keilförmigen Querschnitt, d.h. eine innerhalb der Einbaubreite b hier im Wesentlichen kontinuierlich von links nach rechts abnehmende Einbaustärke D (maximales Maß D1, minimales Maß D2). Entsprechend der Veränderung der Einbaustärke von D1 zu D2 (der Verbreiterungsteil 15 sei hier zunächst außer Acht gelassen) sind die individuellen Hübe der Tamperleistenabschnitte 13a-13d innerhalb der Einbaubreite b unterschiedlich einstellbar, z.B. so, dass jeder Tamperleistenabschnitt trotz der unterschiedlichen Einbaustärke jeweils zumindest die gleiche Verdichtung erzeugt. Der Tamperleistenabschnitt 13a arbeitet hier mit dem größten Hub ha. Die Hübe hb bis hd sind stufenweise kleiner als der Hub ha. Die unterschiedlichen Hübe ha bis hd werden mittels der Einstelleinrichtung E (siehe Fig. 1) entweder vor Einbaubeginn oder im Einbaubetrieb ferngesteuert eingestellt und/oder werden während des Einbaubetriebs eingestellt.The installed on the Planum 6 ceiling layer 3 has wedge-shaped cross-section, ie a within the pave width b here substantially continuously from left to right decreasing installation thickness D (maximum dimension D1, minimum dimension D2). Corresponding to the change in the installation thickness from D1 to D2 (the widening part 15 is ignored here), the individual strokes of the tamper strip sections 13a-13d are differently adjustable within the installation width b, for example such that each tamper strip section is at least the same in each case despite the different installation thickness Compression generated. The Tamperleistenabschnitt 13a works here with the largest stroke h a . The strokes h b to h d are gradually smaller than the stroke h a . The different strokes h a to h d are by means of the adjustment E (see Fig. 1 ) either remotely controlled before the start of installation or during installation and / or be set during installation.

Alternativ oder Additiv kann auch die Frequenz f der Hübe h für jeden Tamperleistenabschnitt 13a-13d innerhalb der Einbaubreite b individuell eingestellt werden, falls als zweckmäßig angesehen, und wie durch die Hinweise fa bis fd angedeutet. Dies kann bedeuten, dass die Frequenz fa die höchste und die Frequenz fd die niedrigste ist, oder auch umgekehrt. Veränderungen des Hubs jedes Tamperleistenabschnitts 13a-13d können stufenlos oder auch in vorbestimmten Schritten ferngesteuert eingestellt werden. Das gleiche gilt für die Frequenz.Alternatively or additive, the frequency f of the strokes h for each Tamperleistenabschnitt 13a-13d within the installation width b can be set individually, if considered appropriate, and as indicated by the notes f a to f d . This may mean that the frequency f a is the highest and the frequency f d is the lowest, or vice versa. Changes in the stroke of each Tamperleistenabschnitts 13a-13d can be adjusted steplessly or in predetermined steps remotely. The same goes for the frequency.

Da jeder Tamperleistenabschnitt 13a-13d mit dem dahinterliegenden Glättblech 12 funktionell zusammenspielt, ist es wichtig, dass der jeweils obere Totpunkt eines Hubs eines Tamperleistenabschnitts relativ präzise auf das Glättblech 12 abgestimmt wird, was in Fig. 2 durch die unterschiedlich tief in das Einbaumaterial eindringenden Unterkanten der Tamperleistenabschnitte 13a-13d angedeutet ist. Falls eine Hochverdichtungseinrichtung vorgesehen sein sollte oder mehrere Vibrationseinrichtungen an den Glättblechen 12, könnten auch deren Verdichtungsleistungen innerhalb der Einbaubreite b variiert werden.Since each tamper strip section 13a-13d interacts functionally with the screed plate 12 lying behind it, it is important that the respective top dead center of a stroke of a tamper strip section is adjusted relatively precisely to the screed plate 12, which is described in US Pat Fig. 2 is indicated by the bottom of the Tamperleistenabschnitte 13a-13d penetrating different depths into the paving material. If a high-compression device should be provided or several vibration devices on the Glättblechen 12, and their compression powers within the installation width b could be varied.

Fig. 3 verdeutlicht schematisch eine Sektion der Tampervorrichtung der Einbaubohle B. Der Tamperleistenabschnitt 13a ist mit zumindest zwei Kopplungen 16, z.B. jeweils eine Art Pleuel, mit einem Hubantrieb 22 gekoppelt. Der Hubantrieb 22 enthält eine mittels eines Drehantriebs 18 (z.B. eines Hydromotors) drehantreibbare Exzenterwelle 17, die in Lagern 19 in der Einbaubohle B drehbar abgestützt ist und in der Kopplung 16 nicht gezeigte, drehbar angeordnete Exzenter trägt, aus deren Rotation über die Kopplungen 16 (Exzentrizitäten e1, e2) die Hübe des Tamperleistenabschnitts 13a abgeleitet werden. Der Tamperleistenabschnitt 13a kann beispielsweise an der Vorderseite des Glättblechs 12 verschiebbar geführt sein. Im Hubantrieb 22 ist ferner ein Stelltrieb 20 vorgesehen, mit dem sich die jeweilige Exzentrizität e1, e2 relativ zur Exzenterwelle 17 und/oder der Kopplung 16 verdrehen lässt, und zwar mittels der Einstelleinrichtung E. Dadurch wird der aus der Exzentrizität e1, e2 abgeleitete Hub h des Tamperleistenabschnitts, z.B. 13a, verändert. Falls auch die Frequenz geändert werden soll, steuert die Einstelleinrichtung E auch den Drehantrieb 18 individuell, im Falle eines Hydromotors z.B. über ein Mengenregelventil. Falls die Exzentrizitäten e1 und e2 gleich sind, können die Kopplungen 16 starr mit dem Tamperleistenabschnitt 13a verbunden sein. Falls, wie möglich, die Exzentrizitäten e1 und e2 unterschiedlich einstellbar sind, um eine kontinuierliche Variation des Hubs a des Tamperleistenabschnitts 13a über dessen Länge einzustellen, ist es zweckmäßig, zumindest ein Gelenk 21 vorzusehen, das zumindest einen Freiheitsgrad besitzt (z.B. ein Scharnier oder eine Sollbiegestelle). Fig. 3 schematically illustrates a section of the tamper device of the screed B. The Tamperleistenabschnitt 13a is coupled to a lifting drive 22 with at least two couplings 16, for example, each a kind of connecting rod. The lifting drive 22 includes a means of a rotary drive 18 (eg a hydraulic motor) rotatably driven eccentric shaft 17 which is rotatably supported in bearings 19 in the screed B and not shown in the coupling 16, rotatably arranged eccentric carries from the rotation of the couplings 16 (FIG. Eccentricities e1, e2), the strokes of the Tamperleistenabschnitts 13a are derived. The tamper strip section 13a can be displaceably guided, for example, on the front side of the screed plate 12. In the linear actuator 22, an actuator 20 is further provided, with which the respective eccentricity e1, e2 can be rotated relative to the eccentric shaft 17 and / or the coupling 16, by means of the adjustment E. This is derived from the eccentricity e1, e2 stroke h of Tamperleistenabschnitts, eg 13a, changed. If the frequency is also to be changed, the adjusting device E also controls the rotary drive 18 individually, in the case of a hydraulic motor, for example via a flow control valve. If the eccentricities e1 and e2 are equal, the couplings 16 may be rigidly connected to the tamper strip portion 13a. If, as possible, the eccentricities e1 and e2 are differentially adjustable in order to set a continuous variation of the stroke a of the tamper strip portion 13a over its length, it is expedient to provide at least one joint 21 having at least one degree of freedom (eg a hinge or a hinge) predetermined bending point).

Fig. 4 verdeutlicht eine andere Ausführungsform des Hubantriebs 22 für den Tamperleistenabschnitt 13a. Hierbei sind zwei hydraulische Hubkolbenantriebe 23 stationär in der Einbaubohle B abgestützt, deren Kolben 24 über Kolbenstangen 26 mit dem Tamperleistenabschnitt 13a gekoppelt sind. Anschläge 29 der Einbaubohle können den oberen Hubumkehrpunkt des Tamperleistenabschnitts 13a begrenzen. Bei den Hubkolbenantrieben 23 handelt es sich beispielsweise um hydraulisch gegen Rückstellfedern arbeitende Druckimpuls-Zylinder, z.B. (Federspeicherzylinder) obwohl auch hydraulisch doppelt wirkende Zylinder verwendbar wären. Die hydraulische Beaufschlagung erfolgt über Regelglieder 18 aus einer Druckquelle 27, wobei die Einstelleinrichtung E an den Regelgliedern 28 einwirkt. Durch die Einstellung des hydraulischen Drucks und/oder der Menge kann der Hubweg des Kolbens 24 bei jedem Druckimpuls gewählt werden, abhängig davon, wie die Einstelleinrichtung E das Regelglied 28 ansteuert. Der individuelle Hub des Tamperleistenabschnitts 13a kann an beiden Hubkolbenantrieben 23 gleich eingestellt werden, oder unterschiedlich, analog zu Fig. 3. Innerhalb der Einbaubreite b sind mehrere solche individuell verstellbare Abschnitte vorgesehen. Fig. 4 illustrates another embodiment of the lifting drive 22 for the Tamperleistenabschnitt 13 a. Here are two hydraulic Hubkolbenantriebe 23 stationary supported in the screed B, the piston 24 are coupled via piston rods 26 with the Tamperleistenabschnitt 13 a. Abutments 29 of the screed may limit the upper stroke reversal point of the Tamperleistenabschnitts 13a. The reciprocating drives 23 are, for example, hydraulically operated against return springs pressure pulse cylinder, eg (spring-loaded cylinder) although hydraulically double-acting cylinder would be used. The hydraulic actuation takes place via control members 18 from a pressure source 27, wherein the adjusting device E acts on the control members 28. By adjusting the hydraulic pressure and / or the amount of the stroke of the piston 24 can be selected at each pressure pulse, depending on how the adjustment E controls the control element 28. The individual stroke of Tamperleistenabschnitts 13 a can be set equal to two reciprocating actuators 23, or different, analogous to Fig. 3 , Within the pave width b several such individually adjustable sections are provided.

Fig. 5 verdeutlicht eine Sonderform einer Einbaubohle B, die zum Einbauen der Deckenschicht 3 mit einem konkaven parabolischen Oberflächenprofil P z.B. auf einem zumindest weitestgehend ebenen Planum 6 konzipiert ist. Die Tampervorrichtung T bzw. ihre Tamperleiste 13 ist über die Einbaubreite in mehrere Abschnitte unterteilt, die beispielsweise, wie auch das Glättblech, das Parabolprofil P definieren, und mit individuellen Hubantrieben 22 gekoppelt sind. Die Hübe der Tamperleistenabschnitte 13a können über die Einbaubreite b, angepasst an das Parabolprofil P so variiert werden, dass lokal unterschiedliche Verdichtungsleistungen so erzeugt werden, dass über die Einbaubreite b im Wesentlichen ein konstanter Verdichtungsgrad resultiert. Fig. 5 illustrates a special form of a screed B, which is designed to install the ceiling layer 3 with a concave parabolic surface profile P, for example, on an at least largely flat Planum 6. The tamper device T or its tamper strip 13 is subdivided over the installation width into a plurality of sections which, for example, as well as the screed plate, define the parabolic profile P and are coupled to individual lifting drives 22. The strokes of the Tamperleistenabschnitte 13a can be varied over the pave width b, adapted to the parabolic profile P so that locally different compression powers are generated so that over the pave width b substantially results in a constant degree of compaction.

Die Einstelleinrichtung E wird jeweils entweder vom Fahrzeugführer oder einem Bedienungsmann an der Einbaubohle B betätigt oder arbeitet automatisch und/oder bedient sich Signalen nicht gezeigter Sensoren, die die maßgeblichen Einbauparameter ermitteln. Zweckmäßig arbeitet die Einstelleinrichtung E mit abgelegten Kennlinien oder Kennfeldern, die vorab bestimmt wurden, und unter denen eine Auswahl getroffen werden kann, und werden auch Eingaben, z.B. als Sollwerte, verarbeitet, z.B. in einem computerisierten und gegebenenfalls programmierbaren Regelsystem.The adjustment device E is actuated either by the vehicle driver or an operator on the screed B or operates automatically and / or uses signals from sensors, not shown, which determine the relevant installation parameters. Suitably, the setting means E works with stored characteristics or maps which have been previously determined and under which a selection can be made, and are also inputs, e.g. as setpoints, processed, e.g. in a computerized and optionally programmable control system.

Erfindungsgemäß bietet somit der Straßenfertiger F bzw. die Einbaubohle B ein Werkzeug und die Möglichkeit, auf lokal unterschiedliche Einbaustärken und Einbaugeschwindigkeiten innerhalb der Arbeitsbreite mit lokal unterschiedlichen Einstellungen zumindest für den Hub und gegebenenfalls auch die Frequenz der Tampervorrichtung zu reagieren.According to the invention thus offers the paver F and the screed B a tool and the ability to respond to locally different installation thicknesses and installation speeds within the working width with locally different settings at least for the hub and possibly also the frequency of the tamper.

Um unter den Einstellmöglichkeiten, beispielsweise der Einbaubohle B von Fig. 2, eine noch höhere Auflösung zu erzielen, könnten in den Ausziehbohlenteilen 14, jedem Verbreiterungsteil 15, und in der Grundbohle 9 bzw. jedem Grundbohlenteil 9a, 9b mehr Tamperleistenabschnitte als gezeigt, jeweils mit eigenen Hubantrieben oder Hubeinstellmöglichkeiten, vorgesehen sein.To under the adjustment possibilities, for example the screed B of Fig. 2 In order to achieve an even higher resolution, more tamper strip sections than shown, each with its own lifting drives or stroke adjusting options, could be provided in the pull-out screed parts 14, each widening part 15, and in the base screed 9 or each base screed part 9a, 9b.

Claims (9)

  1. Method of laying of uncompacted paving material for a compacted cover layer (3), in particular of bituminous paving material, in a laying thickness (D) and with a paving width (b) on a sub-structure (6), by use of a road paver (F) comprising a paving screed (B), the road paver (F) moving the paving screed (B) with a laying speed (V) in working travelling direction (R) floatingly on previously poured down paving material (4), wherein the paving screed (B) comprises a tamper device (T) in working travelling direction (R) in front of a smoothing plate (12) and at least one tamper stroke drive (22), the tamper device (T) comprising several tamper bar sections (13a to 13e) within the paving width (b) and being operable with a selectable stroke (a) and a selectable frequency (f) for at least compacting and smoothing the surface of the cover layer (3), characterized in that during laying a cover layer (3) having varying laying thickness (D) within the paving width (B) and crosswise to the working travelling direction (R) or with a laying speed (V) varying within the entire paving width (B) the strokes (h) and/or the frequencies (f) of the tamper bar sections (13a to 13e) are matched crosswise to the working travelling direction (R) with locally different paving thicknesses and laying speeds and are adjusted individually differently and remotely controlled and/or during the laying process.
  2. Method according to claim 1, characterized in that the varying course of the laying thickness (D) and/or of the surface of the sub-structure (6) and/or of the laying speed (V) crosswise to the working travelling direction (R) and within the paving width (b) is determined by means of data of the sub-structure (6), of settings of the paving screed (B), and by signals generating sensors, and that the strokes (h) and/or the frequencies (f) of the tamper bar sections are set individually different crosswise to the working travelling direction (R) in adaptation to the determined course.
  3. Method according to claim 1, characterized in that the strokes (h) and/or frequencies (f) of the tamper bar sections (13a to 13e) are adjusted within the paving width (B) either in steps or steplessly.
  4. Method according to at least one of claims 1 to 3, characterized in that the strokes (h) and/or the frequencies (f) are adjusted during the laying process.
  5. Road paver (F), comprising a paving screed (B) including at least one tamper device (T) and a smoothing plate (12), wherein the tamper device (T) comprises at least one stroke drive (22) and in working travelling direction (R) in front of the smoothing plate (12) at least one tamper bar (13) extending over the paving width (b) of the paving screed (B) and being subdivided within the paving width (b) in tamper bar sections (13a to 13e), characterized in that the tamper device (T) comprises several stroke drives (22) arranged in the paving screed (B), that the tamper bar sections are respectively coupled with one of several stroke drives (22) arranged in the paving screed (B), and that either the road paver (F) or the paving screed (B) comprises an adjusting device at least for remotely adjusting individually different strokes (h) of the tamper bar sections (13a to 13e) and/or a different frequency (f) for each tamper bar section (13a) within the paving width (b).
  6. Road paver according to claim 5, characterized in that the adjustment device (E) comprises an automatic adjusting and a regulating system for the strokes (h) and/or frequencies (f) of the tamper bar sections (13a to 13e), preferably with stored characteristic curves or characteristic maps of the strokes and/or frequencies.
  7. Road paver according to claim 5, characterized in that the respective stroke drive (22) of a tamper bar section (13a to 13e) is a connecting rod-eccentric-drive including a rotatable eccentric shaft (17), and that by means of the adjusting device (E) the respective eccentricity (e1, e2) and/or the driving speed of the eccentric shaft (17) is or are adjustable for the tamper bar section (13a to 13e).
  8. Road paver according to claim 5, characterized in that the respective stroke drive (22) is a hydraulic stroke-cylinder-drive, and that the piston stroke and/or stroke cylinder moving frequency is adjustable for the tamper bar section by means of the adjustment device (E), preferably by changing the pressure and/or the quantity per pressing pulse and/or the pulse frequency of the hydraulic actuation of the stroke cylinder drive.
  9. Road paver according to claim 7 or 8, characterized in that each tamper bar section (13a to 13e) is coupled with the stroke drive (22) by means of at least two couplings (16) transmitting the stroke (h) and the frequency (f), and that the couplings of the tamper bar section are adjustable with strokes which are equal or different among each other, wherein, preferably, each coupling (16) has a joint (21) having at least one degree of freedom.
EP10002896.8A 2010-03-18 2010-03-18 Method and paver for producing a compacted paved surface Active EP2366832B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10002896.8A EP2366832B1 (en) 2010-03-18 2010-03-18 Method and paver for producing a compacted paved surface
PL10002896T PL2366832T3 (en) 2010-03-18 2010-03-18 Method and paver for producing a compacted paved surface
US13/040,526 US8807866B2 (en) 2010-03-18 2011-03-04 Method and road finisher for laying a compacted finishing layer
JP2011057545A JP5345645B2 (en) 2010-03-18 2011-03-16 Method for laying a compacted finish layer and a road finishing machine
CN2011100659301A CN102191743B (en) 2010-03-18 2011-03-18 Method and road finisher for laying compacted finishing layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10002896.8A EP2366832B1 (en) 2010-03-18 2010-03-18 Method and paver for producing a compacted paved surface

Publications (2)

Publication Number Publication Date
EP2366832A1 EP2366832A1 (en) 2011-09-21
EP2366832B1 true EP2366832B1 (en) 2015-09-23

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EP10002896.8A Active EP2366832B1 (en) 2010-03-18 2010-03-18 Method and paver for producing a compacted paved surface

Country Status (5)

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US (1) US8807866B2 (en)
EP (1) EP2366832B1 (en)
JP (1) JP5345645B2 (en)
CN (1) CN102191743B (en)
PL (1) PL2366832T3 (en)

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Also Published As

Publication number Publication date
US8807866B2 (en) 2014-08-19
CN102191743B (en) 2013-11-27
EP2366832A1 (en) 2011-09-21
PL2366832T3 (en) 2016-03-31
CN102191743A (en) 2011-09-21
JP2011196175A (en) 2011-10-06
US20110229266A1 (en) 2011-09-22
JP5345645B2 (en) 2013-11-20

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