EP0495171B1 - Verfahren zum Einstellen der Stärke einer Einbauschicht mit einem Strassenfertiger - Google Patents

Verfahren zum Einstellen der Stärke einer Einbauschicht mit einem Strassenfertiger Download PDF

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Publication number
EP0495171B1
EP0495171B1 EP91119158A EP91119158A EP0495171B1 EP 0495171 B1 EP0495171 B1 EP 0495171B1 EP 91119158 A EP91119158 A EP 91119158A EP 91119158 A EP91119158 A EP 91119158A EP 0495171 B1 EP0495171 B1 EP 0495171B1
Authority
EP
European Patent Office
Prior art keywords
screed
height
thickness
laying
finisher
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91119158A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0495171A1 (de
Inventor
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
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Filing date
Publication date
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Publication of EP0495171A1 publication Critical patent/EP0495171A1/de
Application granted granted Critical
Publication of EP0495171B1 publication Critical patent/EP0495171B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a method for adjusting the thickness of a layer to be installed by a paver on a substrate of the type explained in the preamble of claim 1 and a suitable paver of the type explained in the preamble of claim 7.
  • Such a paver is known from DE-A-35 35 362.
  • the known paver has a trailed screed that is rigidly connected to two leveling bars.
  • the leveling bars are pivotally connected to the paver on both sides of the paver via a pivot point.
  • the articulation points can be adjusted in height, so that the angle of attack of the screed, ie the angle at which the screed plate arranged under the screed runs to the ground, can be changed. This change in the angle of attack is used to vary the thickness of the layer to be installed.
  • the screed is floating on the layer to be installed, ie it is exposed only with its own weight on the layer.
  • a second lifting cylinder is provided on each of the leveling bars, which acts at a distance from the first lifting cylinder.
  • this second lifting cylinder cannot be regulated, ie it cannot be moved into a predetermined position.
  • the second lifting cylinder only serves to block the floating position of the screed, so that the screed cannot sink at an intermediate stop and is pulled over the already solid material with a rigid force when it starts again without it being able to move upwards.
  • a measuring device is provided on the road paver, which measures the distance to a specified reference line in the area of the screed front edge and worm shaft and, in the event of deviations from the nominal value, the layer thickness by adjusting the height of the articulation point of the Leveling bars corrected.
  • the correct layer thickness must be set in a rather cumbersome manner before starting operation.
  • wooden beams or the like are placed under the screed plates of the screed until the screed is at a height corresponding to the desired layer thickness plus rolling dimension.
  • the required angle of attack can then also be set by adjusting the height of the articulation points by means of the first lifting cylinders. It is only when this setting is handled precisely that it is possible to achieve the exact paving thickness before starting construction. Nevertheless, most of the time, corrections still have to be made. Precise work is especially then This is important if you have to continue with the installation layers already laid the day before. In practice, there are almost always bumps in the road surface, which must then be laboriously removed.
  • DE-A-31 24 363 describes a method and a device for correcting the angle of attack of width-adjustable pavers.
  • the known method is intended to prevent a shoulder from forming at the transition area between the main screed and the adjusting screeds if the angle of attack of the main screed also changes when the layer thickness of the paving layer changes.
  • the screeds are articulated via leveling bars, whereby the articulation point can be adjusted in height by means of a first lifting cylinder.
  • a second working cylinder is provided in the direction of travel behind the first lifting cylinder, which holds the screed in the floating position during operation of the paver and which can additionally be acted upon by a magnitude which can be varied to counteract the weight of the main screed.
  • the load on the working cylinder changes, whereby the paver screed is raised or lowered as a result of the pressure of variable magnitude, which counteracts the weight of the main screed, until the angle of attack resumes the previously set position, with no steps between the main - and the screed occur.
  • An encoder or button can be provided that detects such paragraphs.
  • DE-A-28 38 123 discloses a road paver with a device for adjusting and measuring the paving thickness and volume of road surfaces.
  • the paver contains a screed, which is made with the help of two Working cylinders, which are the same in the direction of travel, are height-adjustable, ie the screed is not articulated via leveling bars at a pivot point.
  • the paving thickness and the paving volume are continuously determined during the laying of the covering and used for billing the work performed.
  • marking devices are attached to the piston rods of the hydraulic cylinders, which interact with display devices, the distance between the marking device on the hydraulic cylinder and a fixed point being determined and used for billing.
  • AU-B-27 245/84 relates to a road paver with a box, which is attached to a pivot point via leveling bars and is open in the direction of travel for receiving the paving material.
  • the pivot point can be adjusted in height using a lifting cylinder.
  • a transducer is provided which scans unevenness in the surface.
  • a second transducer is used to measure the thickness of the finished layer. How the layer thickness is initially set is not described.
  • the invention has for its object to provide a method and a paver for performing the method with which an exact adjustment of the thickness of a paving layer is possible.
  • the invention proposes the lifting cylinders in conjunction with in order to initially adjust the thickness of the installation layer to use two transducers spaced apart in the direction of travel, the height of the second lifting cylinder also having to be designed.
  • a reference value can be obtained in a simple manner, to which only the desired paving thickness plus rolling dimension then has to be added or subtracted, depending on the measuring method.
  • the measure according to claim 2 allows the paving thickness of the road building material to be corrected during the installation, without the need for manual measurements.
  • the reference value for the position of the screed is determined by a simple distance measurement, where as the fixed point for the distance measurement according to claims 4 to 6 either the subsurface itself, or a fixed point arranged on the paver or any other fixed point lying outside the screed and the paver is used, the latter solution having the advantage that a Possibility is created to correct the paving thickness during operation in a known manner.
  • the thickness of the layer can also be easily adjusted before the start of operation, with the arrangement of two transducers spaced in the direction of travel on Leveling bar of the screed the exact position of the screed can be determined as a reference value.
  • a road paver 1 can be seen in FIG. 1, which drives in the direction of arrow F on a subgrade 2 forming a subsurface.
  • the paver 1 has a screed 3 which is provided with a smoothing plate 3a.
  • One end of two leveling bars 4a, 4b is rigidly connected to the screed 3.
  • the leveling bars 4a, 4b extend forward on both sides of the paver's frame and are articulated with their front free ends to the frame of the paver 1 via a respective articulation point 5a, 5b.
  • Each of the articulation points 5a, 5b can be adjusted in height in a controlled manner in the direction of the double arrow A via a first adjustable lifting cylinder 6a, 6b.
  • a second lifting cylinder 7a, 7b which is adjustable in the direction of the double arrow B, acts on each of the leveling bars 4a, 4b.
  • a sensor 8a, 8b, 9a, 9b for example mechanical buttons or contactless sensors, such as ultrasound sensors.
  • the screed 3 is presented by a screw 10 road building material 11, in the present case bituminous mix, which is compacted by the screed 3 when the paver 1 is driving in the direction of arrow F to form a paving layer 12 with a predetermined thickness above the level 2 .
  • the screed lies here 3 floating, ie with their own weight, on the mix 11 to be compacted.
  • the second lifting cylinders 7a, 7b are unlocked in a known manner, so that no pressure or tensile forces are exerted on the leveling bars 4a, 4b and thereby on the screeds 3.
  • the lifting cylinders 7a, 7b can also be used in a known manner to sink the screed 3 when the paver is stopped in the still soft paving layer 12 and slide the screed 3 after a stop to a mixture 11 that has already become firmer without sufficient compaction avoid by locking the lifting cylinders 7a, 7b in a known manner.
  • the screed 3 is lowered so far onto the level 2 by the lifting cylinders 6a, 6b, 7a, 7b that the smoothing plate 3a of the screed 3 lies flat on the level 2. Then this position of the screed 3 is determined via the transducers 8a, 8b, 9a, 9b. In the present case, the distances of the transducers 8a, 8b, 9a, 9b, which are firmly connected to the leveling bars 4a, 4b, are determined from a fixed point.
  • the fixed point can be either the formation 2 and / or a fixed point 13a, 13b or 14a, 14b arranged on the frame of the paver 1 and / or an exactly horizontally oriented surface lying outside the paver 1 and the formation 2, such as a curb, for example.
  • a tensioned wire 15a, 15b or a towing ski can be used, as indicated by the arrows in FIG. 2.
  • the screed 3 is raised via the first and second lifting cylinders 6a, 6b, 7a, 7b to a height above the level 2 which corresponds to the desired paving thickness, plus the rolling dimension if necessary. This position of the screed 3 is held until a floating support of the screed 3 on the road building material 11 is possible.
  • the angle of attack of the screed 3, ie the angle of the smoothing plate 3a to the formation 2 can be adjusted or changed in a known manner by the first lifting cylinders 6a, 6b.
  • a constant paving thickness of the layer 12 is achieved across the width of the road transversely to the direction of travel F. Due to the arrangement of four sensors, the paver serves as averager over its drive length.
  • the processing of the signals from the sensors, the control of the first and second lifting cylinders and the specification of the setpoints for the height of the screed are expediently carried out electronically, the position of the screed being stored on the formation as a reference value.
  • the height sensor uses a ski switch to detect the reference not directly from a curb or tensioned wire, but directly from the formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP91119158A 1990-12-14 1991-11-11 Verfahren zum Einstellen der Stärke einer Einbauschicht mit einem Strassenfertiger Expired - Lifetime EP0495171B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4040027 1990-12-14
DE4040027A DE4040027A1 (de) 1990-12-14 1990-12-14 Verfahren zum einstellen der staerke einer einbauschicht mit einem strassenfertiger

Publications (2)

Publication Number Publication Date
EP0495171A1 EP0495171A1 (de) 1992-07-22
EP0495171B1 true EP0495171B1 (de) 1995-02-01

Family

ID=6420377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119158A Expired - Lifetime EP0495171B1 (de) 1990-12-14 1991-11-11 Verfahren zum Einstellen der Stärke einer Einbauschicht mit einem Strassenfertiger

Country Status (5)

Country Link
EP (1) EP0495171B1 (ja)
JP (1) JP2554810B2 (ja)
AT (1) ATE118049T1 (ja)
DE (2) DE4040027A1 (ja)
ES (1) ES2069177T3 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8843280B2 (en) 2010-07-09 2014-09-23 Joseph Vogele Ag Construction machine with operating mode control
EP2921588B1 (de) 2014-03-18 2016-12-14 MOBA - Mobile Automation AG Straßenfertiger mit Schichtdickenerfassungsvorrichtung und Verfahren zum Erfassen der Dicke einer eingebauten Materialschicht

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT248740Y1 (it) 1999-02-01 2003-02-12 Bitelli Spa Macchina vibrofinitrice per l'asfaltatura delle strade.
US6398454B1 (en) 2000-01-24 2002-06-04 Romolo Bitelli Vibratory finishing machine for road asphalting
DE10234217B4 (de) * 2002-07-27 2009-02-05 Hermann Kirchner Gmbh & Co Kg Verfahren und Vorrichtung zur Ermittlung der Dicke einer Asphaltschicht
KR100895119B1 (ko) * 2008-03-11 2009-04-28 최정필 이물질 및 과다 모르타르 배출수단이 구비된 콘크리트 도로포장장치
US8070385B2 (en) 2008-07-21 2011-12-06 Caterpillar Trimble Control Technologies, Llc Paving machine control and method
US11242658B2 (en) 2018-01-03 2022-02-08 Volvo Construction Equipment Ab Paver machine and a method for paver screed height calibration
WO2022037764A1 (de) 2020-08-18 2022-02-24 Moba Mobile Automation Ag MESSSYSTEM FÜR EINE STRAßENBAUMASCHINE
CN112267358A (zh) * 2020-10-16 2021-01-26 温州融宸科技有限公司 一种道路桥梁铺设装置
DE102022115776A1 (de) 2022-06-24 2024-01-04 Dynapac Gmbh Verfahren zur Herstellung eines Straßenbelags

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784966A1 (de) * 1966-02-10 1972-01-20 Anson Howard George Hoehentastgeraet zur Ermittlung und Steuerung der Hoehenlage einer Arbeitsflaeche
DE2838123A1 (de) * 1978-09-01 1980-03-13 Willi J Grimm Vorrichtung zum einstellen und messen der einbaudicke und des einbauvolumens von strassenbelaegen
DE7825963U1 (de) * 1978-09-01 1979-01-18 Grimm, Willi J., 7090 Ellwangen Vorrichtung zum einstellen und messen der einbaudicke und des einbauvolumens von strassenbelaegen
DE3124363A1 (de) * 1981-06-20 1982-12-30 Maschinenfabrik Klaus-Gerd Hoes GmbH & Co. KG, 2906 Wardenburg Verfahren und vorrichtung zur korrektur des anstellwinkels von breitenverstellbaren strassenfertigerbohlen
AU559661B2 (en) * 1983-04-21 1987-03-19 Engineering Innovation Ltd. Improved paving machine
DE3535362C1 (de) * 1985-10-03 1987-03-26 Voegele Ag J Verfahren und Vorrichtung zur Hoehenregulierung einer Nivellierungsbohle
JPS63272803A (ja) * 1987-04-30 1988-11-10 株式会社新潟鐵工所 敷き均し機械における舗装厚測定装置
DD269186A1 (de) * 1987-12-11 1989-06-21 Baumaschinen Gatersleben Veb Steuerschaltung fuer einbauaggregat an deckenfertiger
US4933853A (en) * 1988-09-28 1990-06-12 Raytheon Company Ultrasonic grade and auger control
DE3909583A1 (de) * 1989-03-23 1990-10-18 Abg Werke Gmbh Strassenfertiger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8843280B2 (en) 2010-07-09 2014-09-23 Joseph Vogele Ag Construction machine with operating mode control
EP2921588B1 (de) 2014-03-18 2016-12-14 MOBA - Mobile Automation AG Straßenfertiger mit Schichtdickenerfassungsvorrichtung und Verfahren zum Erfassen der Dicke einer eingebauten Materialschicht
EP3048199B1 (de) 2014-03-18 2017-03-29 MOBA Mobile Automation AG Strassenfertiger mit schichtdickenerfassungsvorrichtung und verfahren zum erfassen der dicke einer eingebauten materialschicht

Also Published As

Publication number Publication date
JP2554810B2 (ja) 1996-11-20
ATE118049T1 (de) 1995-02-15
ES2069177T3 (es) 1995-05-01
JPH04285202A (ja) 1992-10-09
EP0495171A1 (de) 1992-07-22
DE4040027A1 (de) 1992-06-17
DE59104492D1 (de) 1995-03-16

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