EP2350391B1 - Fraiseuse routière à tambour de fraisage à différentes largeurs de coupe - Google Patents

Fraiseuse routière à tambour de fraisage à différentes largeurs de coupe Download PDF

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Publication number
EP2350391B1
EP2350391B1 EP08874993.2A EP08874993A EP2350391B1 EP 2350391 B1 EP2350391 B1 EP 2350391B1 EP 08874993 A EP08874993 A EP 08874993A EP 2350391 B1 EP2350391 B1 EP 2350391B1
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EP
European Patent Office
Prior art keywords
milling
milling drum
drum
reduction gear
self
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Not-in-force
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EP08874993.2A
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German (de)
English (en)
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EP2350391A1 (fr
Inventor
Karl MÖTZ
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Marini SpA
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Marini SpA
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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
    • 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

Definitions

  • the present invention concerns a milling machine with variable width milling drum and in particular a milling machine for asphalt, concrete and other materials used for road pavings according to the characteristics of the pre-characterizing part of claim 1.
  • a road milling machine is a self-propelled machine, of known technology, finalized to the demolition of road pavements by means of milling with rotating milling drum.
  • the road milling machines generally are equipped with fixed width milling drums contained in a housing opened downwardly to ensure the contact of said milling drum with the surface to mill and opened frontally for the flow of the milled material outside of the milling drum housing.
  • To change the milling width it is necessary to replace not only the milling drum, but also a series of equipments dependent from the sizes of the milling drum itself.
  • EP0694651 also published as WO 01/04422 , discloses an improvement of a cold road milling machine having means for the advancement of the machine and a milling drum mounted on the machine for cutting a certain material width along the path of the machine and a conveyor mechanism for transporting the milled material generated by the cut of the milling drum away from the machine, the improvement including:
  • US5722789 discloses an improvement of a cold road milling machine, said machine including a drive train having an end for the intake of the power at one side of the machine and an end for the delivering of the power on the other side of the machine, said intake end of the power of said drive train being connected to a power source.
  • EP1520076 discloses a self-propelled road milling machine comprising a machine chassis, inside of which a milling drum is mounted in such a way to be rotary between side-walls which are orthogonal to the axis of the milling drum, the milling drum, which has a drum base body and a milling pipe, being suitable to be commanded by means of control means that are supported on the exterior of the side-wall on the power intake side and by means of a reduction gear, and the side-wall situated on the opposite side relative to the side-wall on the power intake side, this being easily demountable for changing alternative milling drums, having different milling widths, and defining the zero-side of the machine against which a face of the milling drum is in abutment in an approximately flush way to allow the milling in proximity to a border, characterised in that:
  • EP1194651 discloses a milling drum comprising a drum base body driven by a milling drum drive device via a transmission unit, a one-piece tubular milling drum coaxially slidably mounted from one side on the drum base body in a manner allowing exchange thereof, the milling drum carrying cutting tools on the outer surface, the milling drum includes fastening elements radially projecting from an inner surface of the milling drum by which the milling drum can be secured in a rotationally fixed manner to the drum base body, said milling drum drive device being placed in correspondence of a side of said drum base body opposite to said side, said fastening means being provided on at least one side of said milling drum, said milling drum being connected to a side-wall of said drum base body and being radially supported on the other side, said fastening means being connected to the base body including the transmission unit integrated on it, said transmission unit being mounted at the end of the base body with the exit directed towards the control group, the input being controlled by a transmission shaft passing through the base body, said base body being
  • a movable bearing On the axial end of the milling drum opposite to the transmission unit, a movable bearing is provided which by means of a guide member is centrically supported in a recess of the side wall.
  • the guide member and the recess can have conical shapes adapted to each other so that the roller base body with the movable bearing is centrically supported.
  • DE 10 2004 025567 discloses a road milling machine in which the milling drum can be exchangeably mounted between the side walls of a milling drum housing and it is rotationally driven by the cutting roller drive via the transmission.
  • the cutting roller can be exchanged together with at least one part of one side wall and optionally the transmission as one unit.
  • EP0694651 also published as WO 01/04422 , though allowing a simplified variation of the milling width of the machine that does not require any replacement of parts related to the transmission, however requires the carrying out of different operations in the changing phase of the milling width, as the milling drum results subdivided into two or more sections, each of the sections able to make the variation of the milling width being divided in segments, each of which, in the illustrated embodiment, covers an arc of 120 degrees.
  • said sections are not utilized, that is one operates with a reduced milling width, for each of them it is necessary to mount in their respective places a rotating blades wheel suitable to push the milled material toward the collecting belt for facilitating its removal from the inside of the milling drum housing.
  • Said blades wheel is also divided into a number of segments corresponding to the number of segments forming the additional sections of the milling drum and, therefore, in the shown embodiment, three segments each of which covering an arc of 120 degrees. Both the segments of the rotating blades and the segments of the additional sections of the milling drum are screwed by means of bolts on radial protrusions of the transmission shaft.
  • the replacement operation of the milling elements occurs accessing the milling drum housing from the back, obliging the operator to work in a narrow space and in uncomfortable working positions.
  • the illustrated preferred embodiment moreover, provides that the first section, the one defining the minimum milling width, is made in a single piece coaxial to the reduction gear, so that if it is necessary to replace said first section for wearing or damage, it is anyway required the dismounting of the reduction gear itself, with consequent considerable lengthening of the intervention time.
  • the first milling section being always in use even in the case of greater milling widths, results subject to a greater wearing compared with the added sections, compromising the quality of the milling itself and requiring a more frequent replacement of the tools of said first section compared with the others.
  • EP1520076 though solving some of the abovementioned problems about the previous solutions, as soon as it uses different milling drums with overall length corresponding to the desired cutting width which can be sideways removed with reference to the machine, has other disadvantages about the positioning of the reduction gear, that is mounted on the left-hand side of the machine involving the presence of an element of transmission able to ensure the possibility to insert the lower width milling drums in such a way that they are flush with the right side of the machine.
  • An additional protection for the reduction gear is needed when operating with the lower width milling drums in order to prevent the milled material to wear the reduction gear itself. Said element of transmission and said additional protection constitute additional rotating masses with consistent size.
  • the replacement or inspection of the reduction gear requires the operator to work in a narrow space and in uncomfortable working positions, being exposed to the milled material present in the mill-drum housing.
  • EP1194651 though solving some of the abovementioned problems about the previous solutions, as soon as it uses different milling drums with overall length corresponding to the desired cutting width which can be sideways removed with reference to the machine, and though having the reduction gear unit mounted on the right side of the machine, has other disadvantages from the point of view of the fixing of the milling drum.
  • an additional support is necessary that in the case of the disclosed invention is realized at the external surface of the base body of the drum itself by means of a movable radial support ring. Said radial support ring can be shifted in various positions depending on appropriate seats realized on the external part of the base body of the drum.
  • the seats that are not utilized must be protected from the exposure to the milled material in order to avoid the clogging by means of appropriate protection plates fixed on the seats by means of screws, these screws themselves therefore being exposed to the milled material and subject to clogging due to the same, which lengthens the replacement time of the milling drum when said annular support and said protection plates must be shifted.
  • the milling drum On the side opposite to the transmission unit, the milling drum is supported by means of a movable bearing which in turn is supported by means of a guide member engaging with a recess of the side wall. Being the side wall hinged to allow the extraction of the milling drum, the guide member and the recess engagement is a conical engagement.
  • the use of a conical engagement can cause a misalignment of the milling drum during the installation, for example due to the presence of residues of the milled material, thus causing an obstacle during the installation of the milling drum increasing the replacement time and causing the presence of additional vibrations due to the axial misalignment of a considerable rotating mass and wearing of the supports.
  • the invention has the following aims:
  • All the replacement operations can be performed acting from the outside of the milling drum housing, reducing the risk of accidents.
  • the inspection or replacement of the reduction gear is easier.
  • the removal of the old pavement is generally required or at least the removal of its upper layer to avoid the creation of dangerous steps due to the laying of the new pavement at the connection points with parts of pavement previously applied and still in good conditions.
  • the removal of the pavement is absolutely necessary as in the case of bridges, for which the removal of the old pavement must be carried out before the laying of the new pavement in order to avoid the increasing of the weight held up by the bridge itself and due to the subsequent repaving one following the other in the course of time, or in the case of railway crossings with reference to which the same height of the pavement must be held in order to avoid dangerous steps that would compromise the grip of the vehicles.
  • the milling machines answer to this need, being machines specially conceived for the removal of the old pavement before the laying of the new material.
  • the road milling machine ( Fig. 1 , 2 ) consists of a self-propelled chassis (1) supported on tracks (2), or wheels, generally equipped with hydraulic drives that pull power from a diesel engine.
  • the milling drum (3) is supported by the chassis (1), transversely to the advancement direction of the machine and is activated by the diesel engine through a mechanical transmission, or by a hydraulic transmission.
  • the tracks (2), or wheels, are connected to telescopic columns (4), by means of which the chassis (1) is brought to height and set to obtain the correct milling profile.
  • the material milled by the milling drum (3) is removed by a system of one or two conveyor belts (5, 6) and it can be discharged at the forepart or at the rear part of the machine. In the first case the material is discharged on means of transportation that precedes the milling machine, while in the second case the means of transportation follows the milling machine proceeding in reverse motion.
  • the description of the invention refers to its application on a road milling machine with frontal discharge of known technology ( Fig. 1 , 2 ), in which the milling drum (3) is housed in a milling drum housing (7).
  • the milling drum housing (7) is provided with a movable rear mouldboard (8), provided with scraper tools for cleaning of the milled surface, and is provided with two movable side plates (9a, 9b) in contact with the road surface, with floating action or slightly forced downwards.
  • the invention object of the present application is applicable also to milling machines with rear discharge.
  • a discharge opening (10) is provided, which allows the discharge of the milled material onto a first conveyor belt (5), generally identified as collecting belt.
  • Said collecting belt (5) has its rear part supported by a device commonly known with the name of "pressure bar” (11), generally kept in more or less forced contact with the surface to be milled, and the forepart sliding on a support connected to the chassis (1) of the machine.
  • the rear mouldboard (8) can be vertically moved and can rotate around a horizontal axis.
  • the vertical movement allows to maintain the mouldboard in contact with the milled surface with a floating, or forced, action but for particular operative needs the mouldboard may also be held partially raised to leave the material flow below it. Its lower edge is provided with scraper tools for cleaning the milled surface.
  • the rotational motion around a hinge with horizontal axis allows the opening of the mouldboard to access the tools of the milling drum (3) for maintenance operations or for its inspection.
  • a typical system of the prior art for supporting the milling drum and for the transmission of its rotational motion around an axis perpendicular to the advancement direction of the machine (Fig. 3 ) is provided with a pulley (12) (power take-off), placed on the left-hand side of the machine, which receives the motion from the diesel engine through a clutch and a trapezoidal belts transmission.
  • the pulley (12) is keyed on the input shaft of the reduction gear (13), constrained to the milling drum housing (7) by the fixing flange (15) of the reduction gear on the milling drum housing and engaged with the frame of the milling drum (3) by the flange (16).
  • the reduction gear (13) therefore constitutes the support of the milling drum (3) on the left-hand side of the machine.
  • the milling drum (3) On the right side the milling drum (3) is supported by the milling drum housing (7) by means of the support (14), engaged with the frame of the milling drum by means of the flange (17). Said reduction gear (13) is necessary to convert the rotation with high number of revolutions per minute given by the engine into a rotation of the drum having the required torque for milling the road surface.
  • the road milling machines are generally equipped with fixed width milling drums. To change the milling width it is necessary to replace not only the milling drum but also a series of equipments depending on the sizes of the drum itself. Solutions concerning milling drums modifiable with different cutting widths are also known, which solutions however generally involve difficulties in the assembling or modification and long set-up times as previously disclosed.
  • Fig. 4 which does not represent the present invention, the reduction gear (19) is fitted on the right side of the machine, in order to allow a fast and simple installations of milling drums even with relatively small width, but able to cover the overall dimensions of the reduction gear.
  • milling drums with reduced width In fact, in the case of the mounting of milling drums with reduced width, they must necessarily be mounted at the right side of the machine because it is generally necessary to perform millings flush to the right side, because the presence of obstacles as curbs, guard-rails, platforms, etc. precludes the machine to move beyond the limit imposed by such obstacles and the milling flush to them would be impossible if the milling drum with lower width is mounted at a position even a little sideways re-entered with respect to the right-hand edge of the machine.
  • the transmission shaft (20) transfers the motion from the pulley (12) to the reduction gear (19) that in the preferred embodiment is a planetary reduction gear with an input passing through hollow shaft.
  • the reduction gear (19) is rigidly connected to the right-hand side wall (18) of the drum housing (7) by means of an centring auxiliary ring (21) that, along with the calibrated screws (24) and the screws (25) constitutes the reaction constraint, said reduction gear (19) being connected to the frame of the milling drum (3) by means of the fixing screws (26).
  • the left-hand side Fig.
  • the milling drum (3) is provided with a milling drum collar (22) sliding in contact with the rotating support (36) including a low friction ring (27), a rotating ring (28) and a bearing (30): the low friction ring (27), made of low friction material, centres the drum over the rotating ring (28), in turn supported by the bearing (30).
  • said milling drum collar (22) slides longitudinally over said low friction ring (27) with respect to the axis the of said milling drum (3), said milling drum collar (22) having a length corresponding to the difference between the cutting width of milling drum and the maximum milling drum cutting width.
  • the transmission shaft (20) is supported on the right-hand side by said reduction gear (19) and on the left-hand side by a bearing (33).
  • a sealing means (29) prevents any dust to enter into the annular chamber between the rotating support (36) and said reduction gear (19).
  • the bearing (30) is lubricated by grease, supplied by means of the grease conduit (37), with discharge of the exceeding volume through a sealing labyrinth (34), whilst the bearing (33) is in oil bath.
  • the milling drum collar (22) does not constitute a limit to the cutting depth as its distance "B" ( Fig. 5 ) from the ground level is higher than the distance "A" from ground level of the auxiliary ring (21).
  • the milling drum collar (22) is represented as being an integral part with the milling drum (3), in a less preferable embodiment said milling drum collar (22) is mounted on said milling drum (3) in a dismountable way by means of fixing means (e.g. screws) through a flange radially protruding from an internal surface of said milling drum (3).
  • Said auxiliary ring (21) is provided in order to consent the free opening of the right-hand side wall (18) around a vertical hinge (23): this solution considerably facilitates the replacement of the milling drum.
  • the reaction to the radial force and to the torque applied to the milling drum is obtained by the friction of said auxiliary ring (21) against the right-hand side wall (18) by means of two series of fixing screws, conventional screws (24) and calibrated screws (24), namely tight tolerance screws for the centring of the milling drum.
  • the replacement of the milling drum (3) is carried out as shown in figures 6 , 7 , 8 , 9 , 10 and consists of the following steps with the milling drum held up by milling drum support means (not represented):
  • the solution object of the present invention avoids the need for the operator to work in a narrow space and in uncomfortable working positions during the replacement of the milling drum, no modification being required in the supports of the milling drum itself or in their position. All operations can be performed acting from the outside of the milling-drum housing (7) thus reducing the replacement time, avoiding the exposure to the milled material and reducing the risk of accidents too.
  • the collecting belt (5) receives the milled material thanks to the loading action of the milling drum (3) when the drum operates on the maximum provided width.
  • the milled material is only partially directly discharged onto the collecting belt (5) by the action of the milling drum (3).
  • the milling drum housing (7) on the left side of the drum tends to be filled with the milled material, that is picked by the collecting belt (5) due to the overflow.
  • blades could be mounted on the outer surface of the milling drum collar (22), said blades being integral with the milling drum collar itself and thus rotating at the same speed of the milling drum, said blades being suitable to push the milled material toward the collecting belt for facilitating its removal from the inside of the milling drum housing.
  • the external surface of said milling drum collar (22) can be protected by means of a protection tube (not represented), made in long-wearing steel.
  • the rear mouldboard (8) must settle ( Fig. 13 ) to the various milling width, for which reason it is manufactured, according to prior art, in two or more sectors (31, 32).
  • Said sectors are independently operated so that a part of them exactly enters inside the excavation made by the milling drum (3) in order to clean the milled surface and prevent the rearward exit of the milled material from the milling machine, while the remaining part(s) is(are) in contact with the road surface on the left-hand side of the excavation.

Claims (12)

  1. Fraiseuse routière autopropulsée comprenant un logement de tambour de fraisage (7) monté sur le châssis (1) de la machine, ledit logement de tambour de fraisage (7) comprenant un premier côté comprenant une prise de force capable de transmettre le mouvement rotatif à partir d'un moteur et un deuxième côté avec une paroi articulée ouvrable (18), le deuxième côté étant le côté opposé dudit logement de tambour de fraisage (7) par rapport audit premier côté, dans ledit logement de tambour de fraisage (7) étant monté un tambour de fraisage (3) sélectionné parmi une série de tambours de fraisage, chacun desdits tambours de fraisage (3) étant en une seule pièce et comprenant des outils de coupe sur sa surface externe et des éléments de fixation saillant radialement de sa surface interne, où l'installation dudit tambour de fraisage (7) est effectuée de façon axialement coulissante à partir dudit deuxième côté du logement de tambour afin de permettre le remplacement dudit tambour de fraisage (3) au moyen de ladite paroi articulée ouvrable (18), ledit tambour de fraisage (3) étant tourné par l'intermédiation d'un engrenage de réduction (19) monté audit deuxième côté du logement de tambour et un arbre de transmission (20) transmettant le mouvement rotatif de ladite prise de force audit engrenage de réduction (19), ledit tambour de fraisage (3) étant supporté et centré au deuxième côté du logement de tambour au moyen dudit engrenage de réduction (19) qui à son tour est supporté par ladite paroi articulée ouvrable (18) à travers un anneau auxiliaire (21) centrant le tambour de fraisage, ledit anneau auxiliaire (21) étant fixé au moyen de moyens de vis (24), caractérisée en ce que ledit tambour de fraisage (3) est pourvu d'un collier de tambour de fraisage creux (22) constituant un espaceur creux ayant une longueur correspondant à la différence entre la largeur de coupe dudit tambour de fraisage et la largeur de coupe de tambour de fraisage maximale de ladite fraiseuse routière, ledit collier de tambour de fraisage creux (22) étant supporté et centré audit premier côté du logement de tambour au moyen d'un support rotatif (36) comprenant un anneau à faible friction (27) et un anneau rotatif (28) supporté par un palier (30), où pendant les phases d'insertion et d'extraction du tambour de fraisage, ledit collier de tambour de fraisage (22) glisse longitudinalement au-dessus dudit anneau à faible friction (27) par rapport à l'axe dudit tambour de fraisage (3).
  2. Fraiseuse routière autopropulsée selon la revendication précédente caractérisée en ce que ledit palier (30) est doté de moyens de lubrification à la graisse, alimentés au moyen d'un tuyau à graisse parallèle à l'axe (37) du côté externe.
  3. Fraiseuse routière autopropulsée selon la revendication précédente caractérisée en ce que ledit support rotatif (36) comprend un labyrinthe d'étanchéité (34) déchargeant le volume de graisse excédant.
  4. Fraiseuse routière autopropulsée selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle est structurée de façon que pendant l'extraction du tambour de fraisage (3), ledit engrenage de réduction (19) puisse être extrait avec ledit tambour de fraisage (3).
  5. Fraiseuse routière autopropulsée selon l'une quelconque des revendications précédentes 1-4 caractérisée en ce que ladite série de tambours de fraisage à partir de laquelle ledit tambour de fraisage (3) à monter dans ledit logement de tambour de fraisage (7) est sélectionné comprend des tambours de fraisage (3) ayant des largeurs totales différentes.
  6. Fraiseuse routière autopropulsée selon la revendication 1 caractérisée en ce que la paroi articulée ouvrable (18) sur ledit deuxième côté du logement de tambour (7) est articulée selon un axe vertical.
  7. Fraiseuse routière autopropulsée selon la revendication 1 caractérisée en ce que ledit logement de tambour de fraisage (7) est pourvu de:
    - un versoir postérieur mobile verticalement (8), ledit versoir étant pourvu d'outils de raclage dans le bord inférieur,
    - ledit versoir postérieur (8) étant articulé sur un axe horizontal,
    - ledit versoir postérieur (8) comprenant des moyens capables de maintenir ledit versoir postérieur (8) en contact avec la surface fraisée par action forcée ou flottante,
    - des plaques mobiles latérales (9a, 9b) comprenant des moyens capables de maintenir lesdites plaques mobiles latérales (9a, 9b) en contact avec la surface fraisée par action forcée ou flottante.
  8. Fraiseuse routière autopropulsée selon l'une quelconque des revendications précédentes 1-7 caractérisée en ce qu'elle comprend au moins une bande transporteuse capable de transporter le matériau fraisé par ledit tambour de fraisage (3) à des moyens appropriés pour la collecte du matériau fraisé, ladite bande transporteuse recevant le matériau fraisé coulant à partir d'une ouverture (10) dudit logement de tambour de fraisage (7).
  9. Fraiseuse routière autopropulsée selon la revendication précédente 8 caractérisée en ce qu'elle comprend une bande transporteuse de collecte (5) recevant le matériau fraisé coulant à partir de ladite ouverture (10) dudit logement de tambour de fraisage (7), et une bande transporteuse de chargement (6) capable de transporter le matériau fraisé de ladite bande transporteuse (5) auxdits moyens appropriés pour la collecte du matériau fraisé, la partie de ladite bande transporteuse de collecte (5) proche dudit logement de tambour de fraisage (7) étant supportée par des moyens de support (11) maintenus en contact avec la surface à fraiser.
  10. Fraiseuse routière autopropulsée selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle est conçue de façon que la décharge du matériau fraisé se vérifie frontalement par rapport à la direction d'avancement de la machine.
  11. Méthode d'échange d'un tambour de fraisage dans une fraiseuse routière autopropulsée conçue selon l'une quelconque des revendications précédentes caractérisée en ce que l'échange/substitution dudit tambour de fraisage (3) consiste en les étapes suivantes:
    - support du tambour de fraisage (3) au moyen de moyens de support de tambour de fraisage
    - élimination des vis (25) fixant ledit engrenage de réduction (19)
    - élimination desdites vis calibrées (24) fixant ledit anneau auxiliaire (21)
    - élimination des vis de paroi (35) fixant la paroi articulée ouvrable (18) à la structure du logement du tambour (7)
    - extraction du tambour de fraisage (3) avec ledit engrenage de réduction (19) en retirant lesdits moyens de support de tambour de fraisage.
    - installation d'un nouveau tambour de fraisage (3) avec l'engrenage de réduction (19) accomplissant les mêmes opérations en ordre inverse.
  12. Méthode d'échange/substitution du tambour de fraisage (3) dans une fraiseuse routière autopropulsée selon la revendication précédente 11, caractérisée en ce qu'elle comprend une phase additionnelle pour l'élimination dudit engrenage de réduction (19) dudit tambour de fraisage (3) après l'extraction du tambour de fraisage (3) avec ledit engrenage de réduction (19).
EP08874993.2A 2008-10-27 2008-10-27 Fraiseuse routière à tambour de fraisage à différentes largeurs de coupe Not-in-force EP2350391B1 (fr)

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Application Number Priority Date Filing Date Title
PCT/EP2008/009063 WO2010048967A1 (fr) 2008-10-27 2008-10-27 Fraiseuse routière à tambour de fraisage à différentes largeurs de coupe

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EP2350391A1 EP2350391A1 (fr) 2011-08-03
EP2350391B1 true EP2350391B1 (fr) 2018-01-24

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Cited By (2)

* Cited by examiner, † Cited by third party
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US11834798B2 (en) 2021-10-06 2023-12-05 Caterpillar Paving Products Inc. System for transferring torque from driveshafts to milling drums

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US11834798B2 (en) 2021-10-06 2023-12-05 Caterpillar Paving Products Inc. System for transferring torque from driveshafts to milling drums
US11585053B1 (en) 2021-10-13 2023-02-21 Caterpillar Paving Products Inc. Milling machine with drum bearing assembly

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