EP2336426B2 - Machine automobile à fraiser la chaussée - Google Patents

Machine automobile à fraiser la chaussée Download PDF

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Publication number
EP2336426B2
EP2336426B2 EP10195372.7A EP10195372A EP2336426B2 EP 2336426 B2 EP2336426 B2 EP 2336426B2 EP 10195372 A EP10195372 A EP 10195372A EP 2336426 B2 EP2336426 B2 EP 2336426B2
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EP
European Patent Office
Prior art keywords
milling
drum
reduction gear
drive
machine
Prior art date
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Active
Application number
EP10195372.7A
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German (de)
English (en)
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EP2336426A2 (fr
EP2336426B1 (fr
EP2336426A3 (fr
Inventor
Peter Busley
Thomas Lehnert
Herbert Ley
Cyrus Barimani
Günter HÄHN
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.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
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Publication date
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Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
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Publication of EP2336426A3 publication Critical patent/EP2336426A3/fr
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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
    • 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
    • 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
    • E01C23/12—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/127—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
    • 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
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments

Definitions

  • the invention relates to a self-propelled road milling machine according to the preamble of claim 1.
  • a road milling machine with a machine frame in which a milling drum is rotatably mounted, wherein the milling drum has a driven by a Fräswalzenantriebs adopted via a support gear roller body and alternatively usable, coaxial, on one side of the roller body pushed and interchangeable fixed Fräsrohrelement that on the outer surface Wear cutting tools.
  • the reduction gear is provided on the drive side, if always only Fräsrohrimplantation the same length to be interchangeable.
  • the disadvantage here is that the reduction gear is arranged in the roller body, whereby the heat generated in the gearbox can not be dissipated and is additionally burdened by the heat generated at the Fräsrohrimplantationn.
  • the reduction gear is arranged on the opposite side of the drive side, whereby the problem of heat build-up even further, because in addition a drive shaft from the drive side is required to the reduction gear, which rotates at high speed, whereby additional heat is generated and the conditions for heat dissipation is not improved over the former embodiment.
  • the reduction gear is arranged on the drive side between the roller base body and the drive-side side plate of the roller box and connected to this only via an end face.
  • the disadvantage here is that the support of the reaction forces must be done via a small lever arm.
  • the connection on the front side is therefore necessary because the transmission is designed as a planetary gear with rotating housing.
  • the transmission should have the smallest possible diameter, thereby simultaneously increasing the length of the transmission.
  • the disadvantage here is that the mechanical connection between the roller body and the reduction gear is shifted in the range of the largest bending moments, wherein the lever arm for transmitting the bending moments due to the small gear diameter is small, resulting in high forces on the connecting elements.
  • the invention has for its object to provide a self-propelled road milling machine, in which in a milling tube quick-change system improved heat dissipation and less wear and increased rigidity can be possible.
  • the housing of the reduction gear between the drive device and the drive-side roller housing wall within the machine frame is rotatably mounted on the machine frame, wherein the reduction gear comprises a planetary gear.
  • the higher stiffness is achieved in that the transmission is stationary and can be repeatedly attached to the machine frame over its length, so that the reduction gear can absorb better due to its rigid attachment of the milling drum forces.
  • the housing is actively cooled, e.g. via an oil cooling, so that the reduction gear is more resilient and more powerful and the dimensions of the reduction gear, in particular its diameter, can be reduced. Due to the active cooling also the wear of the reduction gear can be minimized. A smaller diameter of the reduction gear allows a greater depth of cut.
  • the housing of the reduction gear outside the roller housing is non-rotatably attached to the machine frame.
  • the arrangement outside the roll housing has the advantage that the reduction gear is better accessible for maintenance.
  • the reduction gear is not exposed to the superheated atmosphere in the roller box or within the roller body and is thus not additionally thermally stressed.
  • no protective devices are required to mechanically protect the reduction gear from the sharp-edged milled material.
  • the reduction gear on the side facing the roller housing wall on an output member which supports the free end of the roller body and drives the roller body.
  • the driven element can rigidly support the drive-side free end of the roller body, so that the free end does not have to be stored in the drive-side roller housing wall.
  • the roller body can be passed through a labyrinth seal through the drive-side roller housing wall and the free drive-side end of the roller body to be rotatably connected to the output element.
  • the labyrinth seal prevents dust and heat from escaping outward from the roll housing, without the passage of the roll body through the roll housing wall causing friction losses.
  • the roller body can be mounted in an embodiment on the one hand on the reduction gear facing the end in the reduction gear in a fixed bearing and on the other hand detachably in the removable roller housing wall of the roller housing in a floating bearing.
  • the fixed bearing is provided on the mechanically stiffer side, so that overall the rigidity of the milling tube quick-change system can be improved and a statically determined storage is realized, which can compensate for thermally induced and production-related differences in length.
  • conveying blades can preferably be fastened on the roller base body, distributed uniformly over the circumference.
  • the conveyor blades cause ejection of the material to be milled through the outlet opening in the roller housing when the width of the Fräsrohrimplantations is less than the width of the roller housing.
  • at least the lower edge of the drive-side roller housing wall protrudes slightly further down to the ground surface than the housing of the reduction gear.
  • the replaceable Fräsrohr sculpture are preferably in one piece.
  • the roll housing has, in a wall running parallel to the axis of rotation of the milling drum, the discharge opening for the milled material.
  • the diameter ratio between the reduction gear and the cutting circle of the tools of the Fräsrohriatas is in a preferred embodiment in the range less than 0.45, preferably less than 0.4, for example in the range between 0.35 and 0.45, preferably in the range between 0, 38 and 0.42. If the roller body and the reduction gear can be manufactured with a small diameter in relation to the milling tube elements, the maximum possible cutting depth increases, whereby the application range of the road milling machine can be considerably extended and special machines can be dispensed with.
  • ground-parallel wear elements may be preferably arranged orthogonal and / or parallel to the axis of rotation of the milling drum, which are supported on the machine frame, or on the gearbox. Through these wear elements, such as carbide strips, the reduction gear can also against contact with the Soil surface or protected with objects located on the ground surface.
  • the wear elements are preferably arranged in the direction of travel in front of the reduction gear and fastened slightly lower than the lower edge of the reduction gear.
  • a support ring may be arranged on the roller base body, on which the Fräsrohrelement is pushed.
  • Such support rings are from the EP-A-1 840 268 known.
  • the drive means with a belt drive may project outwardly relative to the machine frame, the housing of the reduction gear between a pulley of the belt drive and the drive-side roller housing wall of the roller housing is mounted outside of the roller housing.
  • the pulley and the entire belt drive can withstand the outside wall of the road milling machine to the outside.
  • the drum housing wall opposite the drive-side roller housing wall is arranged on the zero side of the machine for rapid replacement of alternatively usable milling tube elements, on which the milling drum rests approximately flush with an end face on the longitudinal side of the machine frame, in order to enable edge-near milling.
  • the reduction gear may comprise or consist of a planetary gear.
  • a road milling machine 1 in which the milling tube quick-change system described below can be used.
  • Road milling machines generally consist of a machine frame 2 on which an internal combustion engine and a control station are mounted.
  • the self-propelled road milling machine has height-adjustable, mounted on the machine frame 2 lifting columns 3, on which support wheels (not shown in the figure) or chain drives 5 are mounted.
  • the milling drum 4 is located under the machine frame 2 in a roller housing 11, which is bounded laterally by the roller housing walls 12,13.
  • the processed from the milling drum 4 material is dropped in a conventional manner by an ejection opening 24 on a first conveyor belt 7a and 7b further transported to a second, height-adjustable and pivotable conveyor belt.
  • the milling drum 4 is rotatably arranged between roller housing walls 12, 13 of the roller housing 11 extending orthogonally to the axis of the milling drum 4 and is driven via a drive device 6 and a reduction gear 8.
  • the reduction gear 8 is fixed to the roller housing 11 at an upper end wall, wherein the roller housing 11 in turn is attached to the machine frame 2.
  • the milling drum 4 has a roller body 14 coupled to the reduction gear 8 and at least one integral milling tube element 10, which is interchangeably mounted coaxially on the roller body 14.
  • the roller main body 14 is arranged axially next to the reduction gear 8.
  • the roller main body 14 transmits the torque of the reduction gear 8 to the respective Fräsrohrelement 10.
  • an in Fig. 3 illustrated demountable support ring 50 according to EP 1 840 268 be arranged for radial support of the replaceable Fräsrohriatas 10 on the roller body 14 to which the Fräsrohrelement 10 can be pushed and on which the Fräsrohrelement 10 can slide in the manner of a floating bearing.
  • Fig. 2 shows an embodiment in which the drive means 6 is coupled to the reduction gear 8 via a pulley 30.
  • the pulley 30 of a belt drive 28 is shown as part of the drive device 6.
  • the pulley 30 and the entire belt drive 28 can withstand the outside wall 56 of the road milling machine 1 to the outside.
  • the internal combustion engine drives this pulley 30, for example via a compound V-belt.
  • the reduction gear 8 is stationary with a housing 9, rotationally fixed and rigidly fixed to the machine frame 2 via two spaced brackets 2a, 2b.
  • the housing 9 extends as shown Fig. 2 can be supplied in the axial extension of the milling drum 4 within the outer walls 56 of the machine frame 2. Via a port 42 of the housing 9 oil for cooling the reduction gear 8, which emerges at an outlet 44 again and can be fed to a heat exchanger in a circuit.
  • an output member 16 is arranged, which is connected to the roller body 14 via a connecting flange 15 and drives this.
  • the output member 16 is coaxial and rotatably connected to the roller body 14.
  • the output element 16 forms the fixed bearing for the drive-side free end of the roller body 14.
  • the roller body 14 is passed through a labyrinth seal 19 through the drive-side roller housing wall 12, which forms a barrier to dust and heat.
  • roller body 14 is mounted in a movable bearing 46 in the drive-side roller housing wall 12 opposite roller housing wall 13.
  • the roll housing wall 13 is arranged on the neutral side of the road milling machine 1, which marks the side in which a near-edge milling is possible.
  • the easily removable roll housing wall 13 is preferably pivotable, but may alternatively be axially removable.
  • roller body 14 on the drive side of the fixed bearing forming output member 16 ensures a high rigidity of the construction, since the connection of the two elements 14,16 takes place at a point of lowest bending load, because the reduction gear 8 rigidly to the machine frame 2 and the roller housing 11 can be attached.
  • the Fräsrohrelement 10 is equipped, for example, with chisels 17 whose engagement circle or cutting circle 26 in Fig. 2 is indicated by the dashed line.
  • the maximum milling depth FT is indicated relative to a further dashed line below the roller housing walls 12, 13 at the lower edges 20a, 20b.
  • the diameter ratio between the reduction gear 8 and the cutting circle 26 of the tools 17 of the Fräsrohriatas 10 is preferably in the range of less than 0.45, preferably less than 0.4, wherein the diameter of the reduction gear can not fall below certain minimum dimensions.
  • the diameter ratio may for example be between 0.35 and 0.45, preferably in the range between 0.38 and 0.42.
  • the housing 9 of the reduction gear 8 preferably several wear elements, e.g. Scraper 40, for example, be orthogonal and / or parallel to the axis of rotation of the milling drum 4 arranged parallel to the ground, which are supported on the machine frame 2 and protect the housing 9 from damage.
  • the lower edges of the scrapers 40 extend at the level of the lower edge 20b of the roller housing wall 12th
  • both the reduction gear 8 and the roller base 14 can remain unchanged, while the Fräsrohr sculpture 10 can be axially assembled or disassembled from the neutral side. Access from the drive side is not required.
  • FIG. 2 shows a Fräsrohrelement 10 with short milling width, which is bolted to the roller base body 14 only about one of the Fräsrohrelement 10 radially projecting connecting flange 35 and attached to the roller base 14 annular flange 36.
  • FIG. 3 shows a Fräsrohrelement 10 with a larger milling width than in Fig. 2 shown, the one from the EP 1 840 268 has known support ring 50 with a mounted on the roller body 14 support ring receptacle 52 and a welded to the inside of the Fräsrohriatas support ring element 54.
  • the support ring receptacle 52 may consist of a multi-part ring which can be mounted on the roller body 14. In this case, the support ring receptacle 52 can also be mounted axially movably on the roller base body 14.

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

Claims (14)

  1. Machine automobile à fraiser la chaussée (1) pour le fraisage de surfaces de sol (3), avec
    - un cadre de machine (2),
    - un tambour de fraisage (4) disposé sur le cadre de machine (2) dans un carter de tambour (11), avec un système de remplacement rapide,
    - un dispositif d'entraînement (6) pour l'entraînement du tambour de fraisage (4),
    - un engrenage réducteur (8) agissant entre le dispositif d'entraînement (6) et le tambour de fraisage (4),
    - le tambour de fraisage (4) étant disposé entre des parois de carter de tambour (12, 13) s'étendant orthogonalement à l'axe de rotation du tambour de fraisage (4),
    - le système de remplacement rapide présentant un corps de base (14) du tambour et au moins un élément tubulaire de fraisage (10) pouvant être enfilé sur le corps de base (14) du tambour,
    - la paroi (13) du carter de tambour située en face de la paroi (12) du carter de tambour côté entraînement étant facilement démontable pour remplacer rapidement des éléments tubulaires de fraisage (10) utilisables à titre alternatif,
    caractérisée en ce que
    le carter (9) de l'engrenage réducteur (8) est fixé à l'intérieur du cadre de machine (2) en étant bloqué en rotation sur le cadre de machine (2,) entre le dispositif d'entraînement(6) et la paroi (12) du carter de tambour côté entraînement,
    l'engrenage réducteur (8) présentant un engrenage planétaire (8).
  2. Machine automobile à fraiser la chaussée selon la revendication 1, caractérisée en ce que le carter (9) de l'engrenage réducteur (8) est fixé, bloqué en rotation, sur le cadre de machine (2) à l'extérieur du carter de tambour (11).
  3. Machine automobile à fraiser la chaussée selon la revendication 1 ou 2, caractérisée en ce que l'engrenage réducteur (8) présente, sur le côté tourné vers la paroi (12) du carter de tambour côté entraînement, un élément de sortie (16) qui supporte l'extrémité libre du corps de base du tambour et entraîne le corps de base (14) du tambour.
  4. Machine automobile à fraiser la chaussée selon la revendication 3, caractérisée en ce que le corps de base (14) du tambour traverse la paroi (12) du carter de tambour côté entraînement en passant par un joint à labyrinthe (19), et en ce que l'extrémité libre, côté entraînement, du corps de base (14) du tambour est liée en rotation à l'élément de sortie (16).
  5. Machine automobile à fraiser la chaussée selon revendication 1 à 4, caractérisée en ce que le corps de base (14) du tambour est supporté d'une part dans un palier fixe sur l'extrémité tournée vers l'engrenage réducteur (8), d'autre part de façon détachable dans un palier libre dans la paroi démontable (13) du carter de tambour (11).
  6. Machine automobile à fraiser la chaussée selon une des revendications 1 à 5, caractérisée en ce que, entre l'élément tubulaire de fraisage (10) et la paroi (12) du carter de tambour côté entraînement, des aubes de transport (18) peuvent être fixées sur le corps de base (14) du tambour, de préférence régulièrement réparties sur la circonférence.
  7. Machine automobile à fraiser la chaussée selon une des revendications 1 à 6, caractérisée en ce qu'au moins l'arête inférieure (20b) de la paroi (12) du carter de tambour côté entraînement dépasse légèrement plus vers le bas, vers la surface du sol (3), que le carter (9) de l'engrenage réducteur (8).
  8. Machine automobile à fraiser la chaussée selon une des revendications 1 à 7, caractérisée en ce que les éléments tubulaires de fraisage remplaçables (10)) sont d'une seule pièce.
  9. Machine automobile à fraiser la chaussée selon une des revendications 1 à 8, caractérisée en ce que le carter de tambour (11) présente une ouverture d'éjection (24) dans une paroi (22) s'étendant parallèlement à l'axe de rotation du tambour de fraisage (4).
  10. Machine automobile à fraiser la chaussée selon une des revendications 1 à 9, caractérisée en ce que, au-dessous du carter (9) de l'engrenage réducteur (8), des éléments d'usure (40) sont disposés parallèlement au sol, de préférence orthogonalement et/ou parallèlement à l'axe de rotation du tambour de fraisage (4) et s'appuient sur le cadre de machine (2).
  11. Machine automobile à fraiser la chaussée selon une des revendications 1 à 10, caractérisée en ce que le rapport de diamètres entre l'engrenage réducteur (8) et le cercle de coupe (26) des outils (17) de l'élément tubulaire de fraisage (10) est dans la plage inférieure à 0,45, de préférence dans la plage inférieure à 0,4.
  12. Machine automobile à fraiser la chaussée selon une des revendications 1 à 11, caractérisée en ce que, pour les éléments tubulaires de fraisage (10) qui présentent une largeur de fraisage supérieure à la moitié de la largeur de fraisage maximale, il est disposé sur le corps de base (14)du tambour une bague d'appui (50) sur laquelle l'élément tubulaire de fraisage (10) peut être enfilé.
  13. Machine automobile à fraiser la chaussée selon une des revendications 1 à 12, caractérisée en ce que le dispositif d'entraînement (6) comporte une transmission à courroie (28) qui dépasse vers l'extérieur par rapport au cadre de machine (2), et en ce que le carter (9) de l'engrenage réducteur (8) est fixé à l'extérieur du carter de tambour (11) entre une poulie de courroie (30) de la transmission à courroie (28) et la paroi côté entraînement (12), du carter de tambour (11).
  14. Machine automobile à fraiser la chaussée selon une des revendications 1 à 13, caractérisée en ce que la paroi (13) du carter de tambour opposée à la paroi (12) du carter de tambour côté entraînement est disposée, pour le remplacement rapide d'éléments tubulaires de fraisage (10) utilisables à titre alternatif, sur le côté zéro de la machine (1) auquel le tambour de fraisage (4) est adjacent par une face d'extrémité affleurant à peu près le côté du cadre de machine (2) pour permettre de fraiser près du bord.
EP10195372.7A 2009-12-18 2010-12-16 Machine automobile à fraiser la chaussée Active EP2336426B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009059064A DE102009059064B4 (de) 2009-12-18 2009-12-18 Selbstfahrende Straßenfräsmaschine

Publications (4)

Publication Number Publication Date
EP2336426A2 EP2336426A2 (fr) 2011-06-22
EP2336426A3 EP2336426A3 (fr) 2013-09-18
EP2336426B1 EP2336426B1 (fr) 2014-09-10
EP2336426B2 true EP2336426B2 (fr) 2018-02-07

Family

ID=43608368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10195372.7A Active EP2336426B2 (fr) 2009-12-18 2010-12-16 Machine automobile à fraiser la chaussée

Country Status (8)

Country Link
US (2) US8985702B2 (fr)
EP (1) EP2336426B2 (fr)
JP (1) JP5327754B2 (fr)
CN (2) CN102102338B (fr)
AU (1) AU2010241339B2 (fr)
BR (1) BRPI1005595B1 (fr)
DE (1) DE102009059064B4 (fr)
RU (1) RU2459029C1 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE102009059064B4 (de) * 2009-12-18 2012-04-26 Wirtgen Gmbh Selbstfahrende Straßenfräsmaschine
US9317005B2 (en) 2011-04-26 2016-04-19 Canon Kabushiki Kaisha Image forming apparatus for determining remaining amount of developer in developer container
DE102012203649A1 (de) * 2012-03-08 2013-09-12 Wirtgen Gmbh Selbstfahrende Straßenfräsmaschine zum Bearbeiten von Straßenoberflächen, insbesondere Großfräse
CN102619158B (zh) * 2012-04-17 2016-05-04 陕西长大实业有限公司 路面铣刨机
US8985701B2 (en) * 2012-07-12 2015-03-24 Caterpillar Paving Products Inc. Cold planer having multi-inlet exhaust system
US8714660B2 (en) * 2012-07-16 2014-05-06 Caterpillar Paving Products Inc. Chamber for milling machine
DE102013013304A1 (de) * 2013-08-12 2015-02-12 Wirtgen Gmbh Selbstfahrende Baumaschine zum Bearbeiten von Fahrbahnen oder Bodenoberflächen und Verfahren zum Kühlen der Fräswerkzeuge einer Fräswalze einer selbstfahrenden Baumaschine
DE102016004271C5 (de) * 2016-04-08 2024-03-07 Bomag Gmbh Verfahren zum Kühlen und/oder Aufheizen von Schmiermittel in einem Wechselfräswalzenkasten einer Bodenfräsmaschine, Wechselfräswalzenkasten und Bodenfräsmaschine
EP3406797B1 (fr) 2017-05-23 2019-11-20 Wirtgen GmbH Machine de traitement du sol dotée d'un dispositif de travail rotatif à couple de démarrage élevé pouvant être bloqué axialement dans une position au moyen d'un dispositif de vissage central et dispositif de fabrication et de détachement d'une telle protection
CN112275062B (zh) * 2020-10-28 2021-12-28 山东省大通公路工程有限责任公司 一种老路病害修复施工用的铣刨机降尘设备
CN112359691A (zh) * 2020-11-13 2021-02-12 山东建筑大学 一种市政道路检查井井周路面快速铣刨设备及养护方法

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JP2011127421A (ja) 2011-06-30
DE102009059064B4 (de) 2012-04-26
EP2336426A2 (fr) 2011-06-22
US20150204032A1 (en) 2015-07-23
CN102102338A (zh) 2011-06-22
CN102102338B (zh) 2013-07-24
JP5327754B2 (ja) 2013-10-30
EP2336426B1 (fr) 2014-09-10
AU2010241339B2 (en) 2012-07-05
BRPI1005595B1 (pt) 2019-11-12
US8985702B2 (en) 2015-03-24
US20110148177A1 (en) 2011-06-23
RU2459029C1 (ru) 2012-08-20
US9399843B2 (en) 2016-07-26
EP2336426A3 (fr) 2013-09-18
AU2010241339A1 (en) 2011-07-07
CN201924265U (zh) 2011-08-10
BRPI1005595A2 (pt) 2013-04-02

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