EP2261421A2 - Finisseuse de route et procédé de modification de la largeur de travail d'une finisseuse de route - Google Patents

Finisseuse de route et procédé de modification de la largeur de travail d'une finisseuse de route Download PDF

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Publication number
EP2261421A2
EP2261421A2 EP10005494A EP10005494A EP2261421A2 EP 2261421 A2 EP2261421 A2 EP 2261421A2 EP 10005494 A EP10005494 A EP 10005494A EP 10005494 A EP10005494 A EP 10005494A EP 2261421 A2 EP2261421 A2 EP 2261421A2
Authority
EP
European Patent Office
Prior art keywords
screed
working width
spray
measuring device
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.)
Withdrawn
Application number
EP10005494A
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Bunk
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 EP2261421A2 publication Critical patent/EP2261421A2/fr
Withdrawn legal-status Critical Current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
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the invention relates to a method for changing the working width of a road finisher according to the preamble of claim 1. Furthermore, the invention relates to a road finisher according to the preamble of claim 5.
  • Road pavements made of asphalt are usually formed from several superimposed layers. Between the individual layers, an asphalt-containing emulsion, in particular a bitumen emulsion, is provided to improve the adhesion.
  • the emulsion is usually applied throughout the installation of the next layer on the previously installed, underlying layer nationwide.
  • road pavers used for the production of the road surface are provided with a spraying device which applies the emulsion serving as an adhesion promoter to the lower layer before the next layer of the road surface is applied by the road paver thereto.
  • Pavers usually have a screed that varies in their working width.
  • the screed is formed from a central, engineeringunver basiclichen main screed and two mats, which are opposite to the main screed in opposite directions and retracted. If the working width of the paver is increased by the extension of the mats, it must be adapted to the working width of the sprayer by being changed as well as the working width of the screed.
  • the invention has for its object to provide a paver and a method, whereby the working width of both the screed and the spray device is easily changed reliably and without the risk of interference.
  • a method for achieving this object comprises the measures of claim 1. Accordingly, a measuring device determines how far the working width of the screed has been changed in order to control accordingly drives to change the working width of the sprayer. There is thus a control technology, in particular electronic, coupling of the spray device with the screed in the adjustment of the working width of the paver instead.
  • This type of coupling of the spray device with the screed eliminates a mechanical coupling of the spray device to the screed, so that the disadvantages caused by the mechanical connection of the spray device with the screed, can no longer occur by the inventive method.
  • a control of at least one drive to change the working width of the spray device such circuit technology, especially electronically, to link that the working width of the sprayer is changed as well as the working width of the screed.
  • a preferred embodiment of the method provides, in a spray device with at least two oppositely transversely to the production direction by a drive movable spray ramps to control the drives of the spray ramps using the determined by the at least one measuring device travel path of one or both mats so that the Spray bars are brought to the same working width as the screed. It is done so without any mechanical coupling automatically broadening of the spray device, in synchronism and equally to change the working width of the screed. Due to the lack of mechanical coupling of the spray device with the screed can not be caused by mechanical interference, especially damage caused malfunction in changing the working width of the paver.
  • a paver to solve the aforementioned problem has the features of claim 5.
  • the screed is assigned at least one measuring device for detecting the working width of the screed.
  • the spraying device has at least one drive for changing its working width.
  • the drive of the spray device is controllable by the measuring device of the screed, in such a way that the working width of the spray device is variable depending on the working width of the screed. If the working width of the paver is changed, the drive for the spraying device is actuated based on the measured instantaneous working width of the screed so that it is adaptable in its working width to the changed working width of the screed.
  • the working width of the sprayer can be adjusted analogously to the working width of the screed, the driver of the paver has only to drive the screed to the screed and the sprayer to the desired working width bring to.
  • the working width of the screed is measured only when the change in their working width is completed. Then it is clear to which working width the screed has been brought.
  • the new working width determined by the measuring device is then used to automatically control the at least one drive of the spraying device by bringing its working width to the working width of the screed.
  • the current working width of the same preferably continuously to measure and accordingly to change the working width of the sprayer. In this approach, the width of the sprayer is changed almost simultaneously in synchronism with the width of the screed.
  • each shifting pile has a measuring device. Then it is also possible to move only a sliding bed to change the working width of the screed, the measuring beam associated with each displacement determines which slats have been moved by which path, so that the spray is moved only with this displacement bale by appropriate control of the respective side of the spray device associated drive.
  • the spraying device is preferably formed from a plurality of spraying ramps.
  • the spray device may have two equal width spray bars whose width corresponds to the width of the main screed of the screed. At minimum working width, when the sheaves of the screed have moved together, the spray bars lie with complete overlap one behind the other. It is also conceivable to provide the spraying device with three spray bars, wherein a central spray bar extends across the width of the main screed and two outer spray bars the width of the mats correspond, which are then like the mats and moved apart.
  • the spray device may also have an even larger number of spray bars. In such a case, some spray bars are located in front of a chassis of the paver and the remaining spray bars behind it.
  • each spray bar which are movable transversely to the direction of manufacture to change the working width of the paver, each with a drive to provide.
  • Each drive is then controlled as a function of the travel path determined by the at least one measuring device so that the drives the spray bar this process so that they are brought to a working width corresponding to the working width of the screed.
  • the path measuring device of the screed with a path control of the drive of each spray bar.
  • This coupling can be done in different ways.
  • the respective drive of a spray bar has a travel control, which controls the drives of the spray bars in a manner analogous to the travel path of the moving mules received by the respective measuring device.
  • at least one spray bar has a displacement measuring device which controls the drives, in such a way that the measuring device of the screed and the measuring device of the spray bar determine the same ways. As a result, the spray bars are moved in the same way as the sliding beams.
  • each measuring device of the screed is associated with at least one hydraulic cylinder for moving at least one sliding bed.
  • the way is determined by which a piston rod of the hydraulic cylinder is moved out or retracted out of the cylinder during the movement of the shifting column.
  • This path is identical to the travel path of the shifting pile, so that in this way a simple and accurate measurement of the travel path of the shifting screed is achieved.
  • each spray bar is associated with a motor, preferably a hydraulic motor, which moves the spray bar transversely to the production direction of the paver to change the working width of the spraying device.
  • each of these engines is assigned its own measuring device, which determines the path that the engine has moved the spray bar, and shuts off the drive of the engine, if this path is so great that the spray bars have been moved on a working width that the working width the screed corresponds.
  • the road paver shown here is a self-propelled paver with a (central) drive unit 10.
  • the drive unit 10 has in the illustrated embodiment, a crawler chassis 11, a chassis 12 and an internal combustion engine 13. At the location of the crawler track 11, the paver also a another chassis, in particular a wheel base, have.
  • manufacturing direction 14 of the front of the paver is located in front of the engine 13 located trough-like reservoir 15 for receiving a supply of serving for the preparation of the road surface asphalt.
  • the asphalt passes from the reservoir 15 to the lying behind the engine 13 rear 16 of the paver.
  • the back 16 of the paver is immediately behind the crawler track 11, a spray device 17 for wetting a lower layer of the road surface associated with a primer from, for example, a bitumen emulsion.
  • the spray device 17 is followed by a distributor screw 18, which spreads the asphalt transversely to the production direction 14 in order to produce the road surface.
  • a screed 19 is provided, which is attached to support arms 20 which are pivotally connected to the chassis 12, in particular arranged thereon trusses 21 of the crawler track 11, are pivotable for raising and lowering the screed 19th
  • the screed 19 is changeable in its working width (transversely to the production direction 14).
  • the screed 19 has a central, engineeringunver basicliche main screed 22.
  • the main screed 22 has the width of the chassis 12 and the crawler chassis 11 of the paver.
  • the main beam 22 carries two preferably the same design mats 23, 24.
  • the mats 23, 24 are mounted side by side behind the main plank 22 and each have a width which corresponds approximately to half the width of the main plank 22.
  • the shift shelves 23, 24 are each of a horizontal, extending transversely to the direction of manufacture 14 hydraulic cylinder 25th in the opposite direction transversely to the production direction 14 movable to the working width of the screed 19 is to change.
  • the Fig. 2 shows the screed 19 with quite moving together mowing beams 23, 24.
  • the mats 23, 24 are completely behind the main board 22, so that when moved together mats 23, 24 of the paver has a minimum working width, about the width of the chassis 12 with the crawler chassis 11 corresponds.
  • the Fig. 3 shows the paver with maximally oppositely extended moving boards 23, 24.
  • the movable to the main board 22 transversely to the production direction 14 movable mats 23, 24 are largely apart from the hydraulic cylinders 25, so that the paver shown in the figures has such a maximum working width, which corresponds approximately to twice the width of the chassis 12 with the crawler track 11.
  • the invention is not limited to road pavers whose working width can be doubled.
  • the working width of the spray device 17 is also variable. It is preferably provided to widen the working width of the spray device 17 as well as the working width of the screed 19, so to double in the embodiment shown. Then both the screed 19 and the spray device 17 always have approximately the same working width.
  • the spray device 17 is formed from two approximately equal spray bars 26.
  • a plurality of spray bars for example, three spray bars, which are divided analogously to the screed 19, namely a central fixed spray bar, which has the width of the main beam 22 and two as the mats 23, 24 in opposite directions extendable and retractable lateral spray bars with the width of each one shifting bed 23, 24th
  • the two spray bars 26 and 27 have in the embodiment shown the same width, which corresponds approximately to the minimum working width of the road finisher. As a result, the spray bars 26, 27 are about as wide as the chassis 12 with the crawler chassis 11. With minimal working width of the paver, the two spray bars 26, 27 with overlap in the production direction 14 are consecutively ( Fig. 2 ). At maximum working width of the paver, the spray bars 26, 27 so far apart in the direction transverse to the production direction 14 that they no longer overlap each other and can wet the bottom layer of the road surface over the entire working width of the paver with the serving as a primer bitumen emulsion ( Fig. 3 ). For this purpose, both spray bars 26 and 27 have downward spray nozzles 28, the spray cone 29 are formed so that the lower layer of the road surface over the entire working width of the paver is wettable without gaps with the serving as a primer bitumen emulsion.
  • Procedures are the spray bars 26, 27 via a respective drive, which is in the embodiment shown to each spray bar 26 and 27 associated hydraulic motor 30 which is engaged with a fixed to the respective spray bar 26, 27 arranged rack 31. It is also conceivable, the spray bar 26, 27 to move in opposite directions by other linear actuators, for example, to drive the racks 31 of electric motors or form the drives as a hydraulic cylinder.
  • the auger 18 is also adaptable to the working width of the screed 19. However, this is done separately in a conventional manner, for example by so-called auger attachment parts. These are in the maximum working width pointing Fig. 3 not shown for reasons of simplification. In fact, however, the distribution screw 18 has the same working width as the spray device 17 and the screed 19.
  • the spray device 17 is coupled to the screed 19 with regard to the variability of the working width of the road paver.
  • this coupling is not mechanical, but control technology, in particular electrically or electronically. It is provided to change the working width of the spraying device 17 synchronously when the working width of the screed 19 is changed. This can be done so that the extension and retraction of the mats 23, 24 equally synchronously the spray bars 26 and 27 apart or moved together. But it is also conceivable that first the screed 19 is brought to the intended working width by appropriate input and moving apart of the mats 23 and 24 and then the spray bars 26 and 27 are moved analogously, so that the spray bars 26, 27 after setting the desired working width of the screed 19 are subsequently brought to the respective working width of the screed 19.
  • each displacement pile 23 and 24 is assigned a preferably identical measuring device.
  • each hydraulic cylinder 25 is for the process a displacement bed 23 or 24 associated with a measuring device, namely integrated into the respective hydraulic cylinder 25, so that the measuring device is not visible in the figures.
  • the respective measuring device determines the path by which a piston rod 32 of the respective hydraulic cylinder 25 connected to the displacement shaft 23 or 24 has moved out of the piston 33 thereof. As a result, it can be determined by the measuring devices how large the path is, by which each displacement shaft 23, 24 is extended and thus projects beyond the respective outer end of the main beam 22.
  • the measuring device 34 associated with the spray device 17 are in the Fig. 2 and 3 shown. This is a each metering bar 26 and 27 associated measuring device 34 which cooperates with the rack 31 of the respective Sprühbalkens 26, 27, whereby the measuring means 34 of the spray device 17 determine the way to each spray bar 26, 27 from the starting position with smallest working width of the road paver according to Fig. 2 extended to increase the working width of the paver.
  • a control or regulation compares the measured values of the measuring devices to the sliding beams 23 and 24 and to the spray bars 26 and 27.
  • the measuring devices on the sliding beams 23, 24 indicate the path by which the spray bars 26, 27 have to travel to be brought to the working width of the screed 19.
  • the measured values of the measuring devices 34 in the spray bars 26, 27 then coincide with the measured values of the measuring devices assigned to the sliding boards 23, 24.
  • the control therefore ensures that the moving mats 23, 24 and the spray bars 26, 27 are moved by equal paths when changing the working width of the paver.
  • the measuring devices 34 associated with the spray bars 26, 27 control the drive of the hydraulic motors 30 for moving the spray bars 26 and 27. This control is such that the hydraulic motors 30 are operated to move the spray bars 26, 27 when the path that the marshalls are 23, 24 associated measuring devices have determined, deviates from the path of the measuring device 34 to the spray bar 26, 27.
  • the hydraulic motors 30 are stopped as soon as the spray bars 26, 27 have moved so far in opposite directions that the path detected by the measuring devices 34 of the spray bars 26, 27 corresponds to the path detected by the measuring devices on the sliding beams 23, 24. Both the screed 19 and the spray device 17 then have the same working width.
  • the operator of the paver hydraulically moves the two moving floors 23, 24 of the screed 19 in opposite directions. It is assumed in the following that both shift shelves 23, 24 are equally extended.
  • the measuring devices associated with the hydraulic cylinders 25 for moving the moving boards 23, 24 determine the distance by which each of the moving floors 23, 24 is extended.
  • the control ensures that the spray bars 26, 27 are extended in opposite directions by the same path, by measuring this distance from the measuring devices 34 assigned to the spray bars 26, 27.
  • the measuring devices 34 on the spray bars 26, 27 detect a path which is smaller than the distance by which the sliding boards 23, 24 are extended, the measuring devices 34 actuate via the control the hydraulic motors 30 for extending the spray bars 26, 27.
  • the measuring devices 34 assigned to the spray bars 26, 27 ascertain that the spray bars 26, 27 have been extended by a distance which is the same as that taken by the measuring devices on the mobile shelves 23, 24 by which the mobile shelves 23, 24 are extended , the hydraulic motors 30 and thus the extension of the spray bars 26, 27 are stopped by the control or the measuring devices 34.
  • the control technology associated retraction of the screed 19 and the spray device 17 takes place.
  • the invention makes it unnecessary to change the working width of the spray device 17 separately when changing the working width of the paver. Much more the operator need only bring the working width of the screed 19 to the intended level.
  • the spray device 17 is automatically brought to the same working width by the respective spray bar 26 and / or 27 of the spray device 17 is extended and retracted as far as the respective trailing pile 23 and / or 24th

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP10005494A 2009-05-29 2010-05-27 Finisseuse de route et procédé de modification de la largeur de travail d'une finisseuse de route Withdrawn EP2261421A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910023207 DE102009023207A1 (de) 2009-05-29 2009-05-29 Straßenfertiger und Verfahren zum Verändern der Arbeitsbreite eines Straßenfertigers

Publications (1)

Publication Number Publication Date
EP2261421A2 true EP2261421A2 (fr) 2010-12-15

Family

ID=42671884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10005494A Withdrawn EP2261421A2 (fr) 2009-05-29 2010-05-27 Finisseuse de route et procédé de modification de la largeur de travail d'une finisseuse de route

Country Status (2)

Country Link
EP (1) EP2261421A2 (fr)
DE (1) DE102009023207A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2813619A1 (fr) * 2013-06-11 2014-12-17 Joseph Vögele AG Poutre lisseuse pour une finisseuse de routes
CN105951563A (zh) * 2016-06-28 2016-09-21 广东冠生土木工程技术有限公司 一种摊铺机构及其摊铺机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2479398B1 (fr) 2011-01-25 2017-05-03 Joseph Vögele AG Finisseur de route ou chargeur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2813619A1 (fr) * 2013-06-11 2014-12-17 Joseph Vögele AG Poutre lisseuse pour une finisseuse de routes
CN104233934A (zh) * 2013-06-11 2014-12-24 约瑟夫福格勒公司 适于路面整修机的摊铺熨平板
US9447552B2 (en) 2013-06-11 2016-09-20 Joseph Voegele Ag Paving screed for a road finisher
US9670629B2 (en) 2013-06-11 2017-06-06 Joseph Voegele Ag Paving screed for a road finisher
EP3361003A1 (fr) * 2013-06-11 2018-08-15 Joseph Vögele AG Finisseuse de routes avec une poutre lisseuse
CN105951563A (zh) * 2016-06-28 2016-09-21 广东冠生土木工程技术有限公司 一种摊铺机构及其摊铺机
CN105951563B (zh) * 2016-06-28 2018-08-21 广东冠生土木工程技术有限公司 一种摊铺机构及其摊铺机

Also Published As

Publication number Publication date
DE102009023207A1 (de) 2010-12-02

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