EP3339509B1 - Fraiseuse routière et procédé de fonctionnement d'une fraiseuse routière - Google Patents

Fraiseuse routière et procédé de fonctionnement d'une fraiseuse routière Download PDF

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Publication number
EP3339509B1
EP3339509B1 EP17001937.6A EP17001937A EP3339509B1 EP 3339509 B1 EP3339509 B1 EP 3339509B1 EP 17001937 A EP17001937 A EP 17001937A EP 3339509 B1 EP3339509 B1 EP 3339509B1
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EP
European Patent Office
Prior art keywords
milling
reference signal
milling drum
road
optical reference
Prior art date
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Active
Application number
EP17001937.6A
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German (de)
English (en)
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EP3339509A1 (fr
Inventor
Jean-Rémy Chasse
Thomas Kramer
Seby Joseph
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
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Dynapac GmbH
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Publication date
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Publication of EP3339509A1 publication Critical patent/EP3339509A1/fr
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    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • 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
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path

Definitions

  • the invention relates to a road milling machine according to the preamble of claim 1 and a method for operating a road milling machine according to the preamble of claim 7.
  • Road milling machines are used, in particular, to mill a subsurface or a pavement of damaged roads.
  • a road milled in this way then serves as a substructure for a road to be renewed, on which only a new road surface has to be applied.
  • the road milling machines of the type discussed here which are usually designed to be self-propelled, have a milling drum that can be driven about a horizontal axis of rotation running transversely to the milling direction, as for example in FIG EP 2 011 921 A2 described.
  • the milling drum is mostly housed in a milling drum box.
  • the milling drum box has side plates running perpendicular to the horizontal axis of rotation of the milling drum on opposite end faces.
  • the milling drum is rotatably mounted. From here, the milling drum is driven, which can be attached to the outside of the milling drum box on the outside of one of the side plates.
  • the milling drum box serves to collect the crushed road surface that has been milled off by the milling drum and which can be transported away from the milling drum box by means of a conveyor.
  • the milling drum box together with the milling drum can be moved transversely to a milling direction of the road milling machine.
  • the milling drum box is positioned over the boundaries of a chassis the road milling machine or moved beyond the drive units, in particular the chassis. So that an operator who is usually at a control station of the road milling machine can roughly estimate which area of the ground or the road surface will be covered by the milling drum next, a spacer serving as a reference is assigned to the milling drum box. This spacer or this spacer is known to be attached as a type of guide plate on a zero side of the milling drum box.
  • Such a spacer proves to be particularly disadvantageous as a reference for the milling process, since the position of the side plate on which the spacer is mounted fluctuates greatly due to the necessary size tolerance and is therefore not suitable as a reference for the milling process.
  • the spacer only offers parallax-free reading of the reference when viewed from directly above the spacer.
  • the operator of the road milling machine is always inclined above this mechanical reference and thus only sees projections of the reference which deviate from the nominal reference.
  • the edge projection of the spacer can be shifted.
  • a differently shaped reference, in particular a longer sheet metal also turns out to be unsuitable, since this could collide with other components, such as a lifting column, when the milling drum is moved.
  • the invention is based on the object of creating a road milling machine and a method for operating a road milling machine with which an accurate and reliable milling process is ensured.
  • a road milling machine for solving this problem has the features of claim 1. Accordingly, it is provided that the milling drum is assigned at least one means for generating an optical reference signal for the milling process and with the at least one means an optical reference signal can be generated directly in front of or to the side of the milling drum, the reference signal being applied to the movement of the road milling machine, in particular the Milling drum, is coupled. In addition, it can be provided that the optical reference signal can be generated by the means directly in front of the milling drum on the ground or road surface to be milled. Because the optical reference signal can be projected directly in front of the milling drum, in particular on the subsurface to be milled or on the road surface, a parallax-free reading of the reference can be achieved regardless of the position of the operator.
  • the direct coupling of the means for generating the optical reference signal to the road milling machine or to the milling drum leads to the fact that the reference signal also carries out every movement in the milling direction and / or transversely to the milling direction.
  • the optical reference offers the operator a kind of extension of a cutting edge of the milling drum and thus precisely the position at which the ground or the road surface is detected by the milling drum at any point in time.
  • the invention is characterized in that the chassis of the road milling machine is assigned at least one sensor, which can be read out by a control unit and with which a color and / or intensity of the optical reference signal on the ground or on the road surface can be determined, with one through the at least one sensor-determined change in the color and / or intensity of the reference signal can be generated by the control device, a signal, preferably a warning signal.
  • a signal preferably a warning signal.
  • the control unit which gives the operator sufficient reaction time to react to the situation with, for example, a machine stop.
  • the present invention can also provide that the means for generating an optical reference signal, in particular releasably, can be attached to the milling drum box, preferably on the zero side of the milling drum box, or to a side wall of the milling drum box.
  • the means for generating an optical reference signal can thus be retrofitted to any road milling machine in a simple and detachable manner. To attach the means for generating an optical reference signal, it only has to be screwed onto the milling drum box, for example.
  • the means for generating an optical reference signal is at least one laser, preferably a line laser, or at least one light-emitting diode, preferably an arrangement of several light-emitting diodes, or another light source.
  • a line laser turns out to be particularly advantageous, since a line laser can generate a particularly intensive and precise line or a section of route. In addition, such a laser requires particularly little energy.
  • the milling drum box is assigned an array of light-emitting diodes which, for example, also have a dotted line on the subsurface via optics or generate on the road surface.
  • the use of an optical reference turns out to be particularly advantageous because it cannot be mechanically bent or interfere with the operation of the road milling machine due to a projecting reference arm.
  • Another advantageous embodiment of the present invention can provide that the means for generating an optical reference signal at the beginning of the milling process can be aligned with a desired milling edge and / or a cutting edge of the milling drum transversely to the milling direction. Such an adjustment of the optical reference signal can ensure that the reference signal represents a direct extension of the cutting edge or the desired milling edge of the milling drum.
  • the display of the milling edge shows the operator at which point the road surface will next be detected by the milling drum.
  • the means for generating an optical reference signal can be adjusted on the milling drum box or the side wall in such a way that various objects, in particular parts of the chassis or a chassis of the road milling machine, can serve as a base for the optical reference signal. Even if the milling drum box has been moved under the chassis of the road milling machine for certain applications, the position of the cutting edge of the milling drum can be recognized and the milling drum can be controlled accordingly by projecting the optical reference signal onto, for example, a crawler track located in front of the milling drum box. The road milling machine can thus be operated particularly precisely in a flexible manner by means of the optical reference signal.
  • a method for operating a road milling machine to achieve the object mentioned at the beginning has the measures of claim 7. Accordingly, it is provided that by at least one means for generating an optical reference signal for the milling process directly in front of or to the side of the milling drum, an optical reference signal is generated that is coupled to the movement of the road milling machine or the milling drum. Furthermore, it is conceivable that the optical reference signal is generated directly in front of the milling drum on the ground to be machined or on the road surface by the means for generating the optical reference signal. As a result of this direct generation of the optical reference signal on the subsurface to be milled or the road surface, a reference is generated that is independent of the operator's line of sight.
  • An essential feature of the invention is that a color and / or intensity of the optical reference signal on the ground or on the road surface is detected by a sensor at least temporarily during the milling process and when the color and / or intensity of the optical reference signal changes from a control device generates a warning signal.
  • the at least one means for generating an optical reference signal is attached to the milling drum box or to a side wall of the milling drum box and is aligned transversely to the milling direction using a target milling edge and / or a cutting edge of the milling drum.
  • the means for generating an optical reference signal in particular at least one laser or at least one light-emitting diode, generate a line-like pattern which represents a direct extension of the cutting edge of the milling drum.
  • the cutting edge of the milling cutter can be shown transversely to the milling direction by the means for generating an optical reference signal.
  • the Fig. 1 shows a schematic road milling machine 10 with a cylindrical milling drum 11 for milling off damaged and / or worn road surfaces.
  • the road milling machine 10 is designed to be self-propelled and is provided with a chassis 12 for this purpose.
  • the road milling machine 10 shown has a wheel running gear 13.
  • the road milling machine can, however, also preferably have several crawler tracks.
  • the road milling machine 10 is provided with a drive for the wheel chassis 13 and the milling drum 11.
  • the drive drives the milling drum 11 to rotate about a horizontal axis of rotation 14.
  • the drive can be an internal combustion engine that drives hydraulic pumps, which in turn serve to drive hydraulic motors for the milling drum 11 and the wheel chassis 13.
  • the road milling machine 10 is provided with a machine frame 15 on which a milling drum box 16 is provided.
  • the machine frame 15 also serves as the chassis for the wheel running gear 13.
  • the milling drum box 16 extends, like the axis of rotation 14 of the milling drum 11, transversely to a milling direction 17, preferably over the entire or almost the entire width of the road milling machine 10, in particular the machine frame 15.
  • the milling drum box 16 is closed down to its underside by movable shields that adapt to the cutting depth. Through the open underside of the milling drum box 16, the cylindrical outer surface of the milling drum 11, which is provided with milling chisels, can reach the damaged road surface to be milled off.
  • the milling drum 11 is arranged in the milling drum box 16 such that it can be moved up and down. This means that the milling depth can be changed.
  • the signs arranged at the side are the side signs 19.
  • the milling drum box 16 has an approximately semi-cylindrical or box-shaped box shell and two opposite end faces as well as the planar side plates 19 which intersect the axis of rotation 14 of the milling drum 11 at right angles.
  • a means 20 for generating an optical reference signal 21 is arranged on the milling drum box 16 ( Fig. 2 ).
  • This means 20 for generating the reference signal 21 can be attached to the milling drum box 16 at various positions. It is preferably provided that the means 20 for generating the reference signal 21 is arranged on a side wall 22 of the milling drum case 16, specifically on a front side of the milling drum case 16 when viewed in the milling direction 17.
  • the means 20 for generating the reference signal 21 is, for example, a line laser which is positioned in such a way that it generates the reference signal 21 on the ground or on a part of the road milling machine 10. According to the Fig. 2 the reference signal 21 is aligned in such a way that the line-like reference signal 21 represents a direct extension of the side edge of the milling drum 11. The reference signal 21 thus indicates directly where the cutting edge of the milling drum 11 will be when the road milling machine 10 is moved forward.
  • the reference signal 21 carries out any movement of the road milling machine 10 or the milling drum 11.
  • a sensor not shown, also arranged on the road milling machine 10 or milling drum box 16 can record the reference signal 21 during operation of the road milling machine 10 and detect changes in shape and / or color and / or intensity. As soon as the image of the reference signal 21 ascertained by the sensor changes, an appropriate signal or a warning signal for an operator of the road milling machine 10 can be generated.
  • a change in the reference signal 21 can be caused, for example, by a railroad track, a street ledge, a changing subsurface or the like.
  • the means 20 for generating the reference signal 21 is connected via a cable (not shown) or wirelessly to a control unit which can preferably be operated from a control station of the road milling machine 10. Via this control device, the operator of the milling drum can switch the means 20 for generating the reference signal 21 or the laser on and off or vary the signal in its intensity or in its length.
  • the reference signal 21 can thus be adapted as a function of the external conditions, such as the time of day or brightness.
  • Such a means 20 for generating a reference signal 21 or a line laser is also arranged on a side wall of a screed of a road paver in order to visualize the paving edge of the paving screed. This enables the operator of the road finisher to set the screed width exactly.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Repair (AREA)

Claims (10)

  1. Fraiseuse routière (10) qui comprend un mécanisme de roulement (12) et un tambour de fraisage (11) entraînable en rotation et destinée au traitement d'un substrat ou d'un revêtement routier situé devant le tambour de fraisage (11) par référence au sens de fraisage (17), le tambour de fraisage (11) étant entouré au moins partiellement par un carter de tambour de fraisage (16) et le tambour de fraisage (11) étant associé à au moins un moyen (20) destiné à générer un signal de référence optique (21) destiné au processus de fraisage et un signal de référence optique (21) pouvant être généré directement devant le tambour de fraisage (11), ou sur le côté de celui-ci, avec l'au moins un moyen (20), le signal de référence (21) étant couplé au mouvement de déplacement du tambour de fraisage routier (10), caractérisée en ce qu'au moins un capteur, qui peut être lu par une unité de commande, est associé à un mécanisme de roulement de la fraiseuse routière (10) et permet de déterminer la couleur et/ou l'intensité du signal de référence optique (21) sur le substrat ou sur le revêtement routier, un signal pouvant être généré par l'unité de commande en cas de modification, déterminée par l'au moins un capteur, de la couleur et/ou de l'intensité du signal de référence (21) .
  2. Fraiseuse routière (10) selon la revendication 1, caractérisée en ce que le signal optique de référence (21) peut être généré directement devant le tambour de fraisage (11) sur le substrat ou le revêtement routier à fraiser.
  3. Fraiseuse routière (10) selon la revendication 1 ou 2, caractérisée en ce que le moyen (20) destiné à générer un signal optique de référence (21) peut être fixé, notamment de manière amovible, au tambour de fraisage (16), en particulier à une paroi latérale (22) du carter de tambour de fraisage (16).
  4. Fraiseuse routière (10) selon l'une des revendications précédentes, caractérisée en ce que le moyen (20) destiné à générer un signal optique de référence (21) comporte au moins un laser, de préférence un laser ligne, ou au moins une diode électroluminescente, de préférence un ensemble de plusieurs diodes électroluminescentes, ou une autre source de lumière.
  5. Fraiseuse routière (10) selon l'une des revendications précédentes, caractérisée en ce que le moyen (20) destiné à générer un signal optique de référence (21) peut être orienté, au début du processus de fraisage, sur un bord de fraisage cible et/ou un bord de coupe du tambour de fraisage (11) transversalement à la direction de fraisage (17).
  6. Fraiseuse routière (10) selon l'une des revendications précédentes, caractérisée en ce que le moyen (20) destiné à générer un signal optique de référence (21) est réglable au niveau du carter de tambour de fraisage (16) ou de la paroi latérale (22) de telle sorte que différents objets, en particulier des parties du châssis ou du mécanisme de roulement (12) de la fraiseuse routière (10) peuvent servir de substrat pour le signal de référence optique (21).
  7. Procédé de fonctionnement d'une fraiseuse routière (10) comprenant un mécanisme de roulement (12) et un tambour de fraisage rotatif (11) et un carter de tambour de fraisage (16) qui entoure au moins partiellement le tambour de fraisage (11), le tambour de fraisage (11) éliminant par fraisage une zone d'un substrat ou d'un revêtement routier positionnée devant le tambour de fraisage (11) par référence à la direction de fraisage (17) et au moins un moyen (20) destiné à générer un signal optique de référence (21) destiné au processus de fraisage générant un signal optique de référence (21) directement devant le tambour de fraisage (11) ou sur le côté de celui-ci, caractérisé en ce que la couleur et/ou l'intensité du signal optique de référence (21) sur le substrat ou sur le revêtement routier est détectée au moins temporairement par un capteur pendant le processus de fraisage et, en cas de modification de la couleur et/ou de l'intensité du signal optique de référence (21), un dispositif de commande génère un signal d'avertissement.
  8. Procédé selon la revendication 7, caractérisé en ce que le signal de référence (21) est généré directement devant le tambour de fraisage (11) sur le substrat à traiter ou sur le revêtement routier.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que l'au moins un moyen (20) destiné à générer un signal optique de référence (21) est fixé sur le carter de tambour de fraisage (16) ou sur une paroi latérale (22) du carter de tambour de fraisage (16) et est orienté transversalement à la direction de fraisage (17) sur la base d'un bord de fraisage cible et/ou d'un bord de coupe du tambour de fraisage (11).
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que le moyen (20) destiné à générer un signal optique de référence (21), en particulier au moins un laser ou au moins une diode électroluminescente, génère un motif linaire qui représente un prolongement direct du bord de coupe du tambour de fraisage (11) ou un bord de fraisage transversalement à la direction de fraisage (17) devant le tambour de fraisage (11).
EP17001937.6A 2016-12-23 2017-11-27 Fraiseuse routière et procédé de fonctionnement d'une fraiseuse routière Active EP3339509B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016015422.5A DE102016015422A1 (de) 2016-12-23 2016-12-23 Straßenfräse und Verfahren zum Betreiben einer Straßenfräse

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EP3339509A1 EP3339509A1 (fr) 2018-06-27
EP3339509B1 true EP3339509B1 (fr) 2021-07-07

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Publication number Priority date Publication date Assignee Title
DE102021118779A1 (de) 2021-04-06 2022-10-06 Bomag Gmbh Selbstfahrende bodenfräsmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2716816A1 (fr) * 2012-10-08 2014-04-09 Wirtgen GmbH Machine de construction et méthode de détermination de l'utilisation de celle-ci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203112B1 (en) * 1999-05-03 2001-03-20 American Standards Construction Corp. Attachable road cutting apparatus
DE102007033808A1 (de) * 2007-07-05 2009-01-08 Wirtgen Gmbh Selbstfahrende Straßenfräsmaschine, insbesondere Großfräse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2716816A1 (fr) * 2012-10-08 2014-04-09 Wirtgen GmbH Machine de construction et méthode de détermination de l'utilisation de celle-ci

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