EP1860241B1 - Engin de travaux publics automoteur ainsi que procédé de traitement de sols - Google Patents

Engin de travaux publics automoteur ainsi que procédé de traitement de sols Download PDF

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Publication number
EP1860241B1
EP1860241B1 EP07108318A EP07108318A EP1860241B1 EP 1860241 B1 EP1860241 B1 EP 1860241B1 EP 07108318 A EP07108318 A EP 07108318A EP 07108318 A EP07108318 A EP 07108318A EP 1860241 B1 EP1860241 B1 EP 1860241B1
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EP
European Patent Office
Prior art keywords
milling drum
milling
ground surface
accordance
raised
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EP07108318A
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German (de)
English (en)
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EP1860241A2 (fr
EP1860241A3 (fr
Inventor
Christian Berning
Herbert Lange
Dieter Simons
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Wirtgen GmbH
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Wirtgen GmbH
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Priority to PL07108318T priority Critical patent/PL1860241T3/pl
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Publication of EP1860241A3 publication Critical patent/EP1860241A3/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/005—Devices for the automatic drive or the program control of the machines
    • 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
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/783—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a horizontal axis of rotation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/815—Blades; Levelling or scarifying tools
    • E02F3/8155—Blades; Levelling or scarifying tools provided with movable parts, e.g. cutting discs, vibrating teeth or the like

Definitions

  • the invention relates to a self-propelled construction machine, as well as a method for processing of ground surfaces according to the preamble of claim 1 or 11.
  • Such self-propelled construction machines for processing of ground surfaces are for example from the EP 1408158 A known.
  • the road milling machine described therein has a machine frame with a drive motor for driving driving devices and for driving working equipment.
  • the driving devices can consist of wheels or crawler tracks, which are connected to the machine frame via lifting columns.
  • a roller drive drives a milling drum for milling the bottom surfaces preferably in mating operation.
  • the milling drum can be decoupled from the drive train by means of a coupling.
  • a scraper blade In the direction of travel behind the milling drum is height adjustable a scraper blade, which can slide over the milled by the milling drum or mecanicfräsende surface. The lower edge of the scraper blade is always in the milling operation on the lowest level of the cutting circle of the milling drum.
  • Such construction machines work according to the width of the milling drum strip-shaped. This means that after a predetermined distance of the milled ground surface, the construction machine must drive back to milled an adjacent strip.
  • the peripheral speed of the milling drum is a multiple, for example, 3 times the traveling speed, so that the road construction machine can be greatly accelerated upon engagement of the milling drum.
  • the internal combustion engine Before processing the next strip, the internal combustion engine must then be brought back to operating speed. These processes are very time consuming and very annoying especially for short distances to work for the driver.
  • the constant switching operations of the clutch and the associated frequent load changes of the internal combustion engine mean Increased wear on the clutch, internal combustion engine and all components involved in the powertrain.
  • the invention is therefore an object of the invention to provide a construction machine, and a method for processing of ground surfaces, with the time required for processing a given floor area can be reduced.
  • the invention provides that the milling drum in the raised state in a traveling direction in which the direction of rotation of the milling drum with the direction of rotation of the driving devices remains coupled to the roller drive and that a monitoring device monitors a distance of the milling drum to the ground surface and the raised milling drum of the Drive motor decoupled and / or decouples the driving devices from the drive motor and / or raises the machine frame and / or generates an alarm signal when the monitoring device detects an undershooting of a predetermined distance.
  • the milling drum can remain permanently coupled to the drive motor.
  • the milling drum can be taken out of the cut by pivoting or lifting eg via lifting columns of the driving equipment.
  • a monitoring device detects in the raised state of the milling drum, whether the predetermined for a ride without milling operation distance of the raised milling drum is maintained to the ground surface.
  • the raised, at this time further rotating milling drum is decoupled from the drive motor, so that when the milling drum should actually have ground contact, no more driving power acts on the milling drum and thus only the current rotational energy of the milling drum to be destroyed got to.
  • the mass of the construction machine is sufficient to prevent the construction machine from making a jump in the direction of travel when the milling drum accidentally engages the ground surface. In this way it is ensured that when driving the construction machine without milling operation does not lose time due to the fact that a shutdown and a run-up of the drive motor must be awaited.
  • Another advantage consists in the fact that the wear of machine elements, in particular the clutch, the internal combustion engine and all other components belonging to the drive train is reduced.
  • the milling drum mills the ground surface in mating operation, wherein a transport travel in the forward direction due to the mating run is harmless.
  • the invention is concerned with the reverse drive, in which the milling drum contrary to the prior art, despite the counter-rotation of the milling drum can remain coupled to the drive motor.
  • the monitoring of the predetermined distance by the monitoring device can be done directly or indirectly.
  • An immediate measurement is carried out, for example, by a mechanical or electronic distance measurement, while an indirect measurement of the distance, for example via machine elements of the construction machine, via push buttons or on the current position of the machine frame supporting lifting column can be done.
  • the predetermined distance of the raised milling drum to the ground surface can be monitored with at least one sensor.
  • the predetermined distance to be monitored by the monitoring device can be increased as a function of the height of the driving speed of the driving device.
  • the predetermined distance may be proportional or progressively increased as the vehicle speed increases.
  • the raised milling drum is raised by a predetermined amount which is greater than a minimum distance to be maintained of the milling drum from the ground surface, and that a sensing device for the ground surface has a lower end position, the predetermined distance or the minimum distance of the milling drum to be maintained from the ground surface.
  • the monitoring device must only determine whether the sensing device leaves the lower end position, since in this case a predetermined distance or a minimum distance to be maintained of the milling drum is no longer complied with.
  • the construction machine can be provided with a lowerable relative to the milling drum sensing device which protrudes relative to the milling drum to the bottom surface by a predetermined distance in relation to the lowest point of the cutting circle of the milling drum.
  • the monitoring device generates in the raised state of the milling drum and in the simultaneously lowered state of the sensing device, for example, a control signal for decoupling the milling drum from the drive motor when the at least one sensor contact the at least one sensing device with the bottom surface or lifting the at least one sensing device through the bottom surface detected.
  • the sensing device which may consist of a button in the simplest case, is simultaneously lowered when lifting the milling drum to a lower end position corresponding to a predetermined distance or a minimum distance of the rotating milling drum to the ground surface.
  • the sensing device in turn holds a distance from the ground surface. Should the sensing device touch the ground surface during a drive of the construction machine without a milling drive, or if the sensing device is lifted by the ground surface, the monitoring device generates, for example, a control signal for decoupling the milling drum from the roller drive or drive train.
  • the sensor can detect a ground contact or the position of the sensing device, the ground contact, for example, with a structure-borne sound sensor and the position, for example, with a displacement sensor.
  • the lowest position of the sensing device can be detected with a limit switch.
  • the monitoring device can additionally or alternatively decouple the driving devices from the drive motor and / or raise the machine frame and / or trigger an alarm signal.
  • the sensing device is lowered in the raised state of the milling drum by a predetermined amount which is greater than the predetermined distance of the milling drum to the ground surface, towards the bottom surface. At least the lower end position of the sensing device is detectable by the sensor, wherein the lower end position, for example, corresponds to the minimum distance of the milling drum from the ground surface.
  • the sensing device may consist of a arranged behind the milling drum in the direction of travel Abstreifschild. In this case, the scraper blade can be lowered over the lowest position of the cutting circle of the milling drum also down.
  • the sensing device consists of a hood surrounding the milling drum and / or of a side plate arranged laterally next to an end face of the milling drum.
  • the scraper blade, the hood or provided on the front sides of the milling drum side plates can be lowered in the same way beyond the lowest point of the cutting circle of the milling drum. Also, the position of the side plates, the scraper blade and the hood surrounding the milling drum can be monitored in the same manner as described above in connection with the sensing device, with respect to the distance to the ground surface.
  • a surrounding the milling drum hood this can be lowered relative to the milling drum.
  • a hood is for example from the WO 97/20109 known.
  • self-propelled construction machine 1 for processing of ground surfaces 2 has a machine frame 4, and a drive motor 6 for the drive of driving devices 8 and of working equipment.
  • the driving devices 8 are in the embodiment of the Fig. 1 from wheels, in the embodiment of the Fig. 3 from crawler tracks.
  • the main working device consists of a drivable by a roller drive 10 and decoupled from the drive motor 6 milling drum 12 for milling the bottom surface second
  • the milling drum can be moved to a raised position when it is not in milling operation.
  • the raised position of the milling drum 12 is preferably achieved by means of the lifting columns 20 by lifting the machine frame 4 as a whole.
  • the milling drum 12 mounted in the machine frame is lifted out of the milling track until it has a predetermined distance from the floor surface 2.
  • the milling drum 12 remains coupled via the roller drive 10 and a clutch 7 to the drive motor 6, see FIG that it is not necessary first to shut down the drive motor 6, preferably an internal combustion engine, to idling speed, then to decouple the milling drum 12 from the drive motor and then to raise the drive motor 6 to its operating speed again.
  • Fig. 1 shows the milling drum 12 in mating operation, in which the direction of rotation of the milling drum 12 is opposite to the direction of rotation of the driving devices 8.
  • a monitoring device 14 which monitors the distance of the milling drum 12 to the bottom surface 2 and decouples the raised milling drum 12 from the roller drive 10 when the monitoring device 14 detects a drop below a predetermined distance.
  • the driving devices 8 are decoupled from the drive motor 6, or that the machine frame is raised, or that an alarm signal is generated.
  • the distance of the milling drum 12 to the bottom surface 2 can be measured directly or indirectly.
  • the detection signals from the monitoring device 14 may be supplied to a machine controller or used directly to decouple the milling drum 12 or traction devices 8 from the drive motor 6, or alternatively or additionally to lifting the machine frame 4 by the lifting columns 20 or to generate an alarm signal.
  • a sensor is provided for monitoring the distance of the milling drum 12 to the bottom surface 2.
  • This sensor can measure the distance to the ground surface 2 directly or indirectly.
  • indirect measurement for example, the position of a sensing device is monitored, for example by means of a displacement measuring device or with the aid of a de-switch that detects a specific position of the sensing device.
  • the distance to be monitored can either be fixed, or consist of a fixed minimum distance, or be variable so that it can be increased in dependence on an increasing driving speed of the driving devices 8. This means that with increasing travel speed, the predetermined distance increases continuously, preferably proportionally.
  • a lowerable relative to the raised milling drum 12 sensing device may be arranged on the machine frame 4 such that the sensing device relative to the milling drum 12 to the bottom surface 2 out by a predetermined distance, wherein the monitoring device 14 in the raised state of the milling drum 12 and in the same lowered state of the Sensing device decoupled at least the milling drum 12 of the drive motor 6 when the monitoring device 14 detects contact of the at least one sensing device with the bottom surface 2 or raising the at least one sensing device through the bottom surface 2. It is understood that in addition to the decoupling of the milling drum 12 of the drive motor 6, alternatively or additionally, the travel drives 8 can be decoupled from the drive motor 6 or the machine frame 4 can be raised via the lifting columns 20.
  • the sensing device consists of a working direction behind the milling drum 12 arranged scraper blade 22.
  • Fig. 1 In milling operation according to Fig. 1 is the scraper blade 22 which is vertically adjustable within a portal 21 substantially in the milling track and scrapes there behind the milling roller 12 from the newly milled milling track, so that no residues remain on the milling track.
  • the lower edge of the scraper blade 22 is in the same plane as the lowest point of the cutting circle of the milling drum 12 shown in the drawings.
  • Fig. 2 shows the milling drum 12 in the raised position, in which the lowest point of the cutting circle has a distance from the bottom surface 2.
  • the scraper blade 22 is also in a raised position outside the milling track, wherein the lower edge of the scraper blade 22 has a significantly smaller distance from the bottom surface 2 than the milling drum 12.
  • the distance of the lower edge of the scraper blade 22 may correspond to a predetermined distance, the milling drum 12th has to comply with the soil surface 2.
  • the monitoring device 14 can determine whether the scraper blade 22 touches the ground surface 2 by, for example, using a structure-borne sound sensor.
  • the monitoring device 14 can determine, for example, whether the scraper blade 22 is lifted by the bottom surface 2 and thereby leaves its lower end position. This can be determined in the simplest case by means of limit switches for the lowest position of the scraper blade 22.
  • a distance sensor can be arranged, which can directly measure the distance to the bottom surface 2 without contact.
  • the side plate 24 which is preferably arranged on both sides of the milling drum 12 frontally, can be used as a sensing device.
  • Fig.1 shows the side plate 24 in the operating state in which the side plate 24 rests on the bottom surface 2 and prevents the cutting edge breaking off.
  • Such a side plate 24 is therefore often referred to as edge protection.
  • the side plate 24 is vertically adjustable, as can be seen in the drawings, wherein it always rests on the bottom surface 2 regardless of the current cutting depth of the milling drum 12.
  • Fig. 2 it can be seen that in the raised state of the milling drum 12 and the side plate 24 is raised until it has a predetermined distance from the bottom surface 2.
  • Fig. 2 It can be seen that the side plate 24 has reached the lower end position in a vertical guide. The detection of the distance or a minimum distance is carried out in the same manner as with the height-adjustable scraper blade 22nd
  • Fig. 3 shows an embodiment of a scraper blade 22, as basically already from the EP 1408 158 A is known.
  • Fig. 4 shows the drive train of the construction machine 1 consisting of the drive motor 6, which can be coupled via a coupling 7 with a roller drive 10, which drives the milling drum 12 mounted in the machine frame 4 by means of a belt drive 11. It is understood that the clutch 7 with respect to the roller drive 10 can also be arranged on the output side.
  • the monitoring device 14 allows efficient and safe operation of the construction machine 1, so that the repeated shutdown of the drive motor 6 to idle speed and the subsequent start up of the operating speed at the respective ends of a route to be machined is no longer required.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Road Repair (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Soil Working Implements (AREA)
  • Milling Processes (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Claims (21)

  1. Engin de travaux publics automoteur (1) pour le traitement de surfaces de sol (2),
    - comprenant un bâti de machine (4),
    - comprenant un moteur d'entrainement (6) pour entrainer des moyens de marche (8) et des moyens de travail, et
    - comprenant un rouleau de fraisage (12) pour fraiser les surfaces de sol (2) apte à être soulevé, entrainé par ledit moteur d'entrainement (6) et apte à être découplé de celui-ci,
    ledit rouleau de fraisage (12) étant déplaçable dans une position relevée s'il n'est pas en mode de marche,
    caractérisé en ce que
    l'engin de travaux publics (1) comprend un moyen de contrôle (14) pour contrôler une distance dudit rouleau de fraisage (12) à la surface de sol (2), et
    ledit rouleau de fraisage (12) reste couplé avec le moteur d'entrainement (6) quand le rouleau est en position relevée et l'engin marche en une direction dans laquelle le sens de rotation du rouleau de fraisage (12) correspond au sens de rotation des moyens de marche (8),
    le moyen de contrôle (14) découplant le rouleau de fraisage (12) relevé du moteur d'entrainement (6) et/ou découplant les moyens de marche (8) du moteur d'entrainement (6) et/ou soulevant ledit bâti de machine (4) et/ou générant un signal d'alarme si le moyen de contrôle (14) détecte un sous-dépassement d'une distance prédéterminée.
  2. Engin de travaux publics (1) selon la revendication 1, caractérisé en ce que, si le rouleau de fraisage (12), en marchant en avant, fraise la surface de sol (2) en mode de fraisage en sens opposé, dans lequel le sens de rotation du rouleau de fraisage (12) est opposé au sens de rotation du moyen de marche (8), le rouleau de fraisage (12) est déplaçable, en marche en arrière, dans une position relevée dans laquelle le rouleau de fraisage (12) reste couplé avec ledit moteur d'entrainement (6).
  3. Engin de travaux publics (1) selon la revendication 1, caractérisé en ce que, si le rouleau de fraisage (12), en marchant en avant, fraise la surface de sol (2) en mode de fraisage en sens direct, dans lequel le sens de rotation du rouleau de fraisage (12) correspond au sens de rotation du moyen de marche (8), le rouleau de fraisage (12) est déplaçable, en marche en avant, dans une position relevée dans laquelle le rouleau de fraisage (12) reste couplé avec ledit moteur d'entrainement (6).
  4. Engin de travaux publics (1) selon l'une des revendications 1 à 3, caractérisé en ce que le moyen de contrôle (14) contrôle une distance prédéterminée dudit rouleau de fraisage (12) à la surface du sol (2) au moyen d'au moins un capteur.
  5. Engin de travaux publics (1) selon l'une des revendications 1 à 4, caractérisé en ce que la distance prédéterminée à contrôler par le moyen de contrôle (14) peut être augmentée en fonction de la vitesse de marche des moyens de marche (8).
  6. Engin de travaux publics (1) selon l'une des revendications 1 à 5, caractérisé en ce que, dans la position relevée, le rouleau de fraisage (12) est relevé par une valeur prédéterminée qui est supérieure à une distance minimum qu'il faut maintenir entre le rouleau de fraisage (12) et la surface de sol (2), et qu'un moyen palpeur mesurant vers la surface de sol (2) comprend une position limite basse qui correspond à la distance prédéterminée ou à la distance minimum qu'il faut maintenir entre le rouleau de fraisage (12) et la surface de sol (2).
  7. Engin de travaux publics (1) selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins un moyen palpeur, abaissable par rapport au rouleau de fraisage (12) relevé, est disposé sur le rouleau de fraisage (12) de sorte que le moyen palpeur est en saillie vers la surface de sol (2) par une distance prédéterminée par rapport au rouleau de fraisage (12) relevé, et qu'en état relevé du rouleau de fraisage (12) et en état abaissé simultané du moyen palpeur, le moyen de contrôle (14) découple au moins le rouleau de fraisage (12) de l'entrainement de rouleau (10) si le moyen de contrôle (14) détecte le contact de l'au moins un moyen palpeur avec la surface de sol (2) ou le relevage dudit au moins un moyen palpeur par la surface de sol (2).
  8. Engin de travaux publics (1) selon l'une des revendications 6 ou 7, caractérisé en ce que le moyen palpeur est formé par une lame de raclage (22) située derrière le rouleau de fraisage (12).
  9. Engin de travaux publics (1) selon l'une des revendications 6 ou 7, caractérisé en ce que le moyen palpeur est formé par un capot (18) entourant le rouleau de fraisage (12) et/ou par une lame latérale (24) arrangée latéralement à côté de la face frontale du rouleau de fraisage (12).
  10. Engin de travaux publics (1) selon l'une des revendications 1 à 9, caractérisé en ce que les moyens de marche (8) comprennent des colonnes élévatrices (20) par lesquelles le bâti de machine (4) peut être soulevé conjointement avec le rouleau de fraisage (12), et que le moyen de contrôle (14) génère un signal de réglage pour la position des colonnes élévatrices en fonction de la distance contrôlée et/ou de la vitesse de marche.
  11. Procédé pour le traitement de surfaces de sol (2) par un engin de travaux publics (1) automoteur au moyen de moyens de marche (8), dans lequel engin un rouleau de fraisage (12) supporté dans un bâti de machine (4) et entrainé par un moteur d'entrainement (6),
    ledit rouleau de fraisage (12) étant déplacé dans une position relevée quand il n'est pas en mode de fraisage,
    caractérisé en ce que
    ledit rouleau de fraisage (12) reste couplé avec le moteur d'entrainement (6) quand le rouleau est en position relevée et l'engin marche en une direction dans laquelle le sens de rotation du rouleau de fraisage (12) correspond au sens de rotation des moyens de marche (8),
    une distance du rouleau de fraisage (12) relevé rotatif à ladite surface de sol (2) étant contrôlée, et
    lors d'une détection d'un sous-dépassement d'une distance prédéterminée du rouleau de fraisage (12) à ladite surface de sol (2), le rouleau de fraisage (12) est découplé du moteur d'entrainement (6) et/ou les moyens de marche (8) sont découplés du moteur d'entrainement (6) et/ou le bâti de machine (4) est relevé et/ou un signal d'alarme est généré.
  12. Procédé selon la revendication 11, caractérisé en ce que l'on contrôle une distance du rouleau de fraisage (12) relevé rotatif à un obstacle situé avant ledit rouleau de fraisage (12), vu dans la direction de marche.
  13. Procédé selon l'une des revendications 11-12, caractérisé en ce que la surface de sol (2) est fraisée, lors de la marche en avant, en mode de fraisage en sens opposé, dans lequel le sens de rotation du rouleau de fraisage (12) est opposé au sens de rotation du moyen de marche (8), le rouleau de fraisage (12) étant déplaçable, pour la marche en arrière, dans une position relevée dans laquelle le rouleau de fraisage (12) reste couplé avec ledit moteur d'entrainement (6).
  14. Procédé selon l'une des revendications 11-12, caractérisé en ce que la surface de sol (2) est fraisée, lors de la marche en avant, en mode de fraisage en sens direct, dans lequel le sens de rotation du rouleau de fraisage (12) correspond au sens de rotation du moyen de marche (8), le rouleau de fraisage (12) étant déplaçable, pour la marche en avant, dans une position relevée dans laquelle le rouleau de fraisage (12) reste couplé avec ledit moteur d'entrainement (6).
  15. Procédé selon l'une des revendications 11 à 14, caractérisé en ce que la distance prédéterminée à contrôler est augmentée, de préférence, proportionnellement à une vitesse de marche augmentant des moyens de marche (8).
  16. Procédé selon l'une des revendications 11 à 15, caractérisé en ce que le rouleau de fraisage (12) est relevé dans la position relevée par une valeur prédéterminée qui est supérieure à une distance minimum qu'il faut maintenir entre le rouleau de fraisage (12) et la surface de sol (2), et qu'un moyen palpeur mesurant vers la surface de sol (2) prend une position limite basse qui correspond à la distance prédéterminée ou à la distance minimum qu'il faut maintenir entre le rouleau de fraisage (12) et la surface de sol (2).
  17. Procédé selon l'une des revendications 11 à 16, caractérisé en ce que ledit au moins un moyen palpeur disposé sur le rouleau de fraisage (12) est utilisé pour contrôler ladite distance et est abaissé par rapport au rouleau de fraisage (12) relevé, sans qu'il contacte la surface de sol, et que, à cause de la contrôle en état relevé du rouleau de fraisage (12) et en état abaissé simultané du moyen palpeur, au moins le rouleau de fraisage (12) est découplé du moteur d'entrainement (6) si l'on détecte un contacte de l'au moins un moyen palpeur abaissé avec la surface de sol ou un relevage dudit au moins un moyen palpeur par ladite surface de sol.
  18. Procédé selon l'une des revendications 16 ou 17, caractérisé en ce que l'on utilise comme moyen palpeur une lame de raclage (22) située derrière le rouleau de fraisage (12).
  19. Procédé selon l'une des revendications 16 ou 17, caractérisé en ce que l'on utilise comme moyen palpeur une lame latérale (24) arrangée latéralement à côté de la face frontale du rouleau de fraisage (12) et/ou un capot (18) entourant le rouleau de fraisage (12).
  20. Procédé selon l'une des revendications 11 à 19, caractérisé en ce que l'on utilise des colonnes élévatrices (20) pour soulever le rouleau de fraisage (12) conjointement avec le bâti de machine (4), et qu'un signal de réglage de la position des colonnes élévatrices est généré en fonction de la distance contrôlée et/ou de la vitesse de marche.
  21. Procédé selon l'une des revendications 11 à 15, caractérisé en ce que l'on utilise des colonnes élévatrices (20) pour soulever le rouleau de fraisage (12) conjointement avec le bâti de machine (4), et qu'un signal de position des colonnes élévatrices (20) est utilisé comme signal de distance à contrôler pour la distance dudit rouleau de fraisage (12) à la surface de sol (2).
EP07108318A 2006-05-22 2007-05-16 Engin de travaux publics automoteur ainsi que procédé de traitement de sols Active EP1860241B1 (fr)

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PL07108318T PL1860241T3 (pl) 2006-05-22 2007-05-16 Samojezdna maszyna budowlana oraz sposób obróbki powierzchni podłoża

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DE102006024123A DE102006024123B4 (de) 2006-05-22 2006-05-22 Selbstfahrende Baumaschine, sowie Verfahren zum Bearbeiten von Bodenoberflächen

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EP1860241A2 EP1860241A2 (fr) 2007-11-28
EP1860241A3 EP1860241A3 (fr) 2008-06-04
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US (1) US7530641B2 (fr)
EP (1) EP1860241B1 (fr)
CN (1) CN101078194B (fr)
AT (1) ATE462044T1 (fr)
AU (1) AU2007202213B2 (fr)
DE (2) DE102006024123B4 (fr)
ES (1) ES2343280T3 (fr)
PL (1) PL1860241T3 (fr)

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AU2007202213B2 (en) 2008-12-11
ES2343280T3 (es) 2010-07-27
CN101078194A (zh) 2007-11-28
US7530641B2 (en) 2009-05-12
DE502007003196D1 (de) 2010-05-06
PL1860241T3 (pl) 2010-09-30
US20070286678A1 (en) 2007-12-13
EP1860241A2 (fr) 2007-11-28
DE102006024123A1 (de) 2007-11-29
DE102006024123B4 (de) 2010-02-25
CN101078194B (zh) 2012-06-06
ATE462044T1 (de) 2010-04-15
AU2007202213A1 (en) 2007-12-06
EP1860241A3 (fr) 2008-06-04

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