EP0217408A2 - Procédé et dispositif pour le réglage en hauteur d'une poutre lisseuse - Google Patents

Procédé et dispositif pour le réglage en hauteur d'une poutre lisseuse Download PDF

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Publication number
EP0217408A2
EP0217408A2 EP86113678A EP86113678A EP0217408A2 EP 0217408 A2 EP0217408 A2 EP 0217408A2 EP 86113678 A EP86113678 A EP 86113678A EP 86113678 A EP86113678 A EP 86113678A EP 0217408 A2 EP0217408 A2 EP 0217408A2
Authority
EP
European Patent Office
Prior art keywords
screed
lifting
height
leveling
switched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86113678A
Other languages
German (de)
English (en)
Other versions
EP0217408A3 (en
EP0217408B1 (fr
Inventor
Paul Dörr
Roland Dipl.-Ing. Grundl (Fh)
Alfred Dr.-Ing. Ulrich
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
Original Assignee
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6282695&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0217408(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to AT86113678T priority Critical patent/ATE50010T1/de
Publication of EP0217408A2 publication Critical patent/EP0217408A2/fr
Publication of EP0217408A3 publication Critical patent/EP0217408A3/de
Application granted granted Critical
Publication of EP0217408B1 publication Critical patent/EP0217408B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—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
    • E01C19/4866—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 solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
    • E01C19/4873—Apparatus designed for railless operation

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • the layer thickness is essentially determined by the angle of attack of the screed to the paving ground and its driving speed in connection with the flow and compaction behavior of the paving material. It is known to monitor the work result during the work process by means of suitable measuring devices and, if necessary, to regulate the height of the screed accordingly. When the machine is at a standstill, this vertical mobility of the floating suspension is locked down in such a way that the screed cannot sink below the predetermined height. This is particularly important if a stop is temporarily necessary during a commute, for example due to a halt in the supply of materials.
  • the height blockade is lifted when the journey begins again and the screed is floating on the thawing material again.
  • the first step is to get paving material that was brought to the screed immediately before the work trip was interrupted.
  • the flowability may have changed by cooling so that when the screed begins to move forward again, this counteracts and increases the stagnation resistance. He if it submits paving material with normal temperature and flowability as it moves further, it swims back to normal height.
  • the difference in layer thickness in the start-up area is clearly visible and must be compensated for by extensive rework.
  • the invention has for its object to provide a method of the type described, which automatically prevents approach height errors.
  • the screed which is blocked in its vertical movements in both directions, forms a rigid system with a fixed screed position during start-up with its suspension elements on the road construction machine .
  • the screed cannot move upwards even when there is increased backlog resistance.
  • the rigid system also allows her to overcome the increased congestion resistance, ie to strip off excess material.
  • the screed is lifted after the specified period of time, ie the screed is brought back into the floating position.
  • the choice of the time period results from the respective working conditions, ie the distance likely to be covered with material in front of the screed when the trip is stopped and the acceleration and speed of the road construction machine.
  • the height of the screed is regulated with a height leveling device according to a reference line during the working process, it can be ensured by the feature of claim 2 that no leveling movements, neither upwards nor downwards, take place during the starting process.
  • the leveling device is therefore not burdened by the increased storage resistance, but rather belongs to the rigid system.
  • the feature of claim 3 ensures the exact leveling and compaction work of the screed after the selected period of time. There is no transition area between the rigid height adjustment and the adjustable, floating pad, in which movable organs act on those that are still blocked.
  • the invention also provides a device for carrying out the method for a leveling and compaction screed, which is articulated on the one hand with the cantilevers on the road construction machine, on which leveling cylinders act for angle and height adjustment, and which is suspended for floating storage by means of lifting cylinders which are suitable for the floating working position must be kept open on both the lifting and pressure sides via a processing and valve system.
  • the height blocking of the screed according to the invention in the approach period is effected according to the feature of claim 4 via a control element which can be acted upon by the switch for the travel drive and which blocks the inlet and outlet lines of the lifting cylinders by means of valves and thus silently puts.
  • the floating position switches a timer after the selected period.
  • the feature of claim 5 makes it possible to carry out the method according to the feature of claim 3.
  • Leveling device and lifting cylinder form a rigid, height-fixed bandage during the selected time period, and then simultaneously assume their normal work mobility.
  • the feature of claim 6 addresses an advantageous further development of the device according to the invention.
  • the pressure relief valve prevents damage to the lifting cylinders and / or the screed in extreme cases, i.e. if the paving material should harden and / or be filled up abnormally during a particularly long standstill.
  • a leveling and compaction screed 2 is attached to a road construction machine designated as a whole by 1.
  • the connection between the screed 2 and the construction machine 1 is made by handlebars 3, each with its free end are attached to the side of the road construction machine at an attachment point 4.
  • the attachment points 4 can each be adjusted in height by means of leveling cylinders 5 in the sense of the double arrow A.
  • lifting cylinders 6 engaging the handlebars 3 are also arranged in the vicinity of the screed 2.
  • the lifting cylinders 6 are double-acting.
  • the road construction machine 1 After actuating a driving switch 7, moves in the direction of travel indicated by the arrow F.
  • Road material 8 is brought in front of the screed in the direction of travel, from which the screed forms a layer 9 of desired thickness by stripping and compacting.
  • the screed moves floating on the road building material 8, held by the lifting cylinders 6 open in both directions, i.e. with free piston movement up and down.
  • the desired layer thickness is monitored by a measuring device 10 arranged in the vicinity of the screed 2 on the road construction machine, which compares the height of the screed with a predetermined reference line 11. If there is a deviation, the measuring device acts on the leveling cylinders 5, which in turn adjust the attachment points 4 upwards or downwards. As a result, the angle of attack of the screed 2 changes via the boom 3.
  • a hydraulic line and valve system designated as a whole as 12, and its electrical control circuit 13 are shown schematically in FIG. 2.
  • the lifting cylinders 6 are connected via a four / three-way valve 15, a lifting line 16 and a lowering line 17.
  • a check valve 18 is arranged in the stroke line 16 and a two / two-way valve 19 is connected in parallel thereto.
  • a check valve 20 and, in parallel, a two / two-way valve 21 are connected in the lowering line 17.
  • a discharge line 22 branches off from the lowering line 17 between the valves and the reciprocating piston 6 and leads to a pressure limiting valve 23.
  • the electrical control circuit 13 can be acted upon by the driving switch 7.
  • a pulse line 24 is switched for the travel drive.
  • the valves are actuated via a control member 25.
  • a timer 26 is applied.
  • Fig. 2 shows the rest position, i.e. the driving switch 7 is not closed, the road construction machine is stopped. In this position, the two / two-way valve 19 in the lifting line 16 is closed. A return of the hydraulic fluid from the piston rod side of the cylinder to the hydraulic system is not possible, i.e. the lowering movement of the pistons and thus a change in position of the screed is blocked. The two / two-way valve 21 in the lowering line 17 is open.
  • the travel switch 7 is brought into its closed position. It sets the travel drive in motion via the impulse line 24. At the same time, he switches on the control element 25. This in turn switches the two two-way valve 21 in the lowering line 17 into the lock position. The lifting cylinders 6 are thus blocked in both directions of movement and thus the screed 2. Simultaneously with these switching operations, a leveling device (not shown), which controls the adjusting movements of the leveling cylinders 5, was blocked via a pulse line 27. All changes in position of the screed 2 are thus switched off during the start. Simultaneously with the switching of the driving switch, the timer 26 was applied.
  • the timer 26 switches in the electrical control circuit 13 in such a way that both the two / two-way valve 19 and the two / two-way valve 21 are switched to free passage. So that the lifting cylinders 6 are released in both directions of movement, the screed is kept floating. At the same time, the blockage of the leveling cylinders is released via the impulse line 27.
  • the switching operations described ensure that the screed, together with the booms 3 and the lifting cylinders 6, forms a system that is rigidly connected to the road construction machine 1 and does not allow any changes in height during a certain travel time of the road construction machine.
  • the screed cannot be forcibly lifted by road construction material that came in front of the screed before the road construction machine came to a standstill and lost flowability during the standstill due to cooling. A height error in layer 9 is avoided.
  • the subsequent simultaneous release of the leveling device and the lifting cylinder movement brings about a seamless transition to the normal working process.
  • the invention is not restricted to the exemplary embodiment. It is essential that the vertical movement of the screed automa during a certain time of arrival table is blocked and then fully released again automatically.
  • the manner of this blocking and its control essentially depends on the design of the screed attachment and suspension and its actuation and control devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Soil Working Implements (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
EP86113678A 1985-10-03 1986-10-03 Procédé et dispositif pour le réglage en hauteur d'une poutre lisseuse Expired - Lifetime EP0217408B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113678T ATE50010T1 (de) 1985-10-03 1986-10-03 Verfahren und vorrichtung zur hoehenregulierung einer nivellierungsbohle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535362 1985-10-03
DE3535362A DE3535362C1 (de) 1985-10-03 1985-10-03 Verfahren und Vorrichtung zur Hoehenregulierung einer Nivellierungsbohle

Publications (3)

Publication Number Publication Date
EP0217408A2 true EP0217408A2 (fr) 1987-04-08
EP0217408A3 EP0217408A3 (en) 1987-10-28
EP0217408B1 EP0217408B1 (fr) 1990-01-31

Family

ID=6282695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113678A Expired - Lifetime EP0217408B1 (fr) 1985-10-03 1986-10-03 Procédé et dispositif pour le réglage en hauteur d'une poutre lisseuse

Country Status (7)

Country Link
US (1) US4759657A (fr)
EP (1) EP0217408B1 (fr)
CN (1) CN1007169B (fr)
AT (1) ATE50010T1 (fr)
DE (2) DE3535362C1 (fr)
ES (1) ES2013231B3 (fr)
GR (1) GR3000358T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681886A1 (fr) * 1991-09-30 1993-04-02 France Etat Ponts Chaussees Procede et dispositif de mesure de l'epaisseur moyenne d'une couche de chaussee.
EP0678623A1 (fr) * 1994-04-21 1995-10-25 Joseph Vögele AG Finisseur
US5879104A (en) * 1995-12-19 1999-03-09 Joseph Vogele Ag. Slip-form paver for road constructions of concrete

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810891A1 (de) * 1988-03-30 1989-10-19 Heilit & Woerner Bau Ag Tragschichtfertiger
US5046889A (en) * 1989-12-05 1991-09-10 Sterner Jr Carl L Rolling screed spreader box
DE4040027A1 (de) * 1990-12-14 1992-06-17 Joseph Voegele Ag Verfahren zum einstellen der staerke einer einbauschicht mit einem strassenfertiger
US5569807A (en) * 1992-05-01 1996-10-29 Phillips Petroleum Company Isoparaffin-olefin alkylation
DE4211286C2 (de) * 1992-04-03 2003-08-21 Metso Dynapac Gmbh Verfahren zum Arretieren einer Einbausohle eines Straßenfertigers und Straßenfertiger zur Durchführung des Verfahrens
US5533828A (en) * 1994-09-29 1996-07-09 Astec Industries, Inc. Method and apparatus for discharging paving materials on top of distributing auger
US5568992A (en) * 1995-05-19 1996-10-29 Caterpillar Paving Products Inc. Screed control system for an asphalt paver and method of use
DE19647150C2 (de) * 1996-11-14 2001-02-01 Moba Mobile Automation Gmbh Vorrichtung und Verfahren zum Steuern der Einbauhöhe eines Straßenfertigers
US5868522A (en) * 1997-01-16 1999-02-09 Astec Industries, Inc. Vibratory screed assembly for an asphalt paving machine
DE19709131C2 (de) * 1997-03-06 2003-02-20 Abg Allg Baumaschinen Gmbh Deckenfertiger
DE10155507B4 (de) * 2001-11-13 2005-10-06 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Fertiger zum bodenseitigen Einbau von Schichten für Straßen od. dgl.
WO2004094011A2 (fr) * 2003-03-25 2004-11-04 Somero Enterprises, Inc. Appareil et procede permettant d'ameliorer la commande d'un ensemble tete d'arasement du beton
US20050163565A1 (en) * 2004-01-27 2005-07-28 Quenzi Philip J. Concrete-chute strike-off device
US8382395B2 (en) * 2008-06-20 2013-02-26 Caterpillar Inc. Paving system and method for controlling compactor interaction with paving material mat
US7946787B2 (en) * 2008-06-27 2011-05-24 Caterpillar Inc. Paving system and method
US20100196096A1 (en) * 2009-02-02 2010-08-05 Somero Enterprises, Inc. Apparatus and method for improving the control of a concrete screeding machine
DE102009019839A1 (de) 2009-03-09 2010-09-16 Bomag Gmbh Hydraulische Steueranordnung für die Bohle eines Straßenfertigers
US9200415B2 (en) * 2013-11-19 2015-12-01 Caterpillar Paving Products Inc. Paving machine with automatically adjustable screed assembly
WO2015168070A1 (fr) 2014-04-28 2015-11-05 Somero Enterprises, Inc. Système d'aplanissement du béton assurant une rétroaction/un contrôle concernant la qualité du sol
DE102016008253A1 (de) * 2016-07-08 2018-01-11 Dynapac Gmbh Straßenfertiger und Verfahren zur Herstellung eines Straßenbelags
ES2970621T3 (es) 2017-12-18 2024-05-29 Somero Entpr Inc Máquina de enrasado de hormigón con control de bloque de columnas usando sensor giroscópico
US10472777B1 (en) * 2018-05-02 2019-11-12 Caterpillar Paving Products Inc. Screed tow point assembly for paver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333371C2 (de) * 1973-06-30 1990-08-02 Dynapac HOES GmbH, 2906 Wardenburg Straßenfertiger
US4026658A (en) * 1974-07-26 1977-05-31 Barber-Greene Company Automatic support system for a screed
SU975862A1 (ru) * 1981-03-26 1982-11-23 Proizv T I Dorozhnogo Str Latt Устройство для управления положением выглаживающей плиты асфальтоукладчика 1 2

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681886A1 (fr) * 1991-09-30 1993-04-02 France Etat Ponts Chaussees Procede et dispositif de mesure de l'epaisseur moyenne d'une couche de chaussee.
EP0536037A1 (fr) * 1991-09-30 1993-04-07 Etat Francais - Laboratoire Central Des Ponts Et Chaussees Procédé et dispositif de mesure de l'épaisseur moyenne d'une couche de chaussée
EP0678623A1 (fr) * 1994-04-21 1995-10-25 Joseph Vögele AG Finisseur
US5556227A (en) * 1994-04-21 1996-09-17 Joseph Vogele Ag Road finisher
US5879104A (en) * 1995-12-19 1999-03-09 Joseph Vogele Ag. Slip-form paver for road constructions of concrete

Also Published As

Publication number Publication date
CN86106861A (zh) 1987-04-29
DE3535362C1 (de) 1987-03-26
CN1007169B (zh) 1990-03-14
EP0217408A3 (en) 1987-10-28
ATE50010T1 (de) 1990-02-15
DE3668651D1 (de) 1990-03-08
EP0217408B1 (fr) 1990-01-31
ES2013231B3 (es) 1990-05-01
US4759657A (en) 1988-07-26
GR3000358T3 (en) 1991-06-07

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