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EP1520076A1 - Fraiseuse de route automotrice - Google Patents

Fraiseuse de route automotrice

Info

Publication number
EP1520076A1
EP1520076A1 EP03720545A EP03720545A EP1520076A1 EP 1520076 A1 EP1520076 A1 EP 1520076A1 EP 03720545 A EP03720545 A EP 03720545A EP 03720545 A EP03720545 A EP 03720545A EP 1520076 A1 EP1520076 A1 EP 1520076A1
Authority
EP
European Patent Office
Prior art keywords
milling
self
machine according
propelled road
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03720545A
Other languages
German (de)
English (en)
Other versions
EP1520076B1 (fr
Inventor
Bernd Holl
Herbert Ley
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10232489A external-priority patent/DE10232489A1/de
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1520076A1 publication Critical patent/EP1520076A1/fr
Application granted granted Critical
Publication of EP1520076B1 publication Critical patent/EP1520076B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the invention relates to a self-propelled road milling machine according to the preamble of claim 1.
  • a disadvantage of this solution is that the milling drum drive takes place hydrostatically by installing hydraulic motors on both sides of the milling drum.
  • the connection between the segments is a simple plug-in connection, which only allows inadequate centering of the milling rotor. Because a drive device is provided on both sides, it is not possible to mill close to the edge.
  • a roller housing of variable width is required, which is structurally very complex.
  • US 4,720,207 describes milling tube segments mounted on a roller base body. With this concept, a corner ring segment is first attached to one side. Then the milling tube segments are screwed to the latter, the screw connections being inside the segments.
  • a disadvantage is the enormous amount of screwing work involved and that the milling depth is limited due to the constant diameter of the base body if a planetary gear is integrated in the base body.
  • a disadvantage of this solution is that a complete dismantling of the milling drum must be carried out in order to carry out various milling work, such as normal or fine milling.
  • various milling work such as normal or fine milling.
  • a road milling machine with a machine frame in which a milling drum is rotatably mounted, the milling drum being a roller body driven by a milling drum drive device via a gear unit and alternatively usable, coaxial, interchangeably fastened and exchangeably fastened milling tubes on the roller body has, which carry cutting tools on the outer surface.
  • the reduction gear is provided on the drive side in the case of milling tubes which extend over the entire working width.
  • the roller base body is fastened to a radially projecting flange of the gear housing, a screw connection being necessary from the drive side, which is difficult to access.
  • the known solution with the arrangement of the reduction gear on the drive side cannot be used sensibly for milling tubes of smaller milling width because the milling depth is limited for the following reasons: The milling tubes have to be almost flush with the zero side to enable milling close to the edge.
  • the gear arranged on the drive side would limit the realizable milling depth.
  • the reduction gear is therefore on the zero side of the machine, i.e. on the side where it is possible to mill close to the edge.
  • the disadvantage here is that a drive shaft extending from the drive side to the reduction gear on the zero side is required, which has to be stored and which has to be provided with an additional protective tube against damage.
  • the reduction gear forms a fixed bearing, whereby a floating bearing must necessarily be arranged on the drive side due to the arrangement on the zero side.
  • a pivotable side plate is arranged on the zero side for quick changing of the milling tubes, which is less suitable for absorbing the high reaction forces of a fixed bearing in the axial direction.
  • the floating bearing is located on the drive side, which is difficult to access, on which, for example, the anti-rotation device for the floating bearing must be mountable.
  • the long drive shaft acts like a torsion suspension, which means that a rigid drive of the milling drum is not possible and the maximum possible cutting forces are reduced.
  • split rings are mandatory, which must be installed in a forced position of the fitter.
  • the assembly of the split support rings may make it necessary to change the rotational position of the roller base body repeatedly, for example by 180 °, which creates the risk of accidents.
  • the invention has for its object to provide a self-propelled road milling machine in which an exchange of milling tubes of different milling width is simplified and the time and effort required for this is minimized.
  • the invention advantageously provides that the reduction gear is arranged on the drive side, that the reduction gear has an output element arranged on the inside of the drive-side plate, the outer surface of which has a seat for milling tube elements that can be pushed on from the zero side, namely the drive-side ends of the milling tubes or radial Forms support devices for the milling tubes and / or tubular protective devices for the output element, and that the roller base body is coupled to the reduction gear on the free end face of the output element without impeding the sliding of the milling tube elements.
  • the reduction gear is arranged on the drive side, the reduction gear having a preferably circular-cylindrical housing which forms the output element of the reduction gear, the roller base body being coupled to the reduction gear on the end face of the housing.
  • the housing has a cross-sectional shape that allows the milling tube or support devices for the milling tube and / or protective devices for the housing to be pushed on from the zero side, the inner contour of the supporting devices or the protective devices being adapted to the cross-sectional shape of the housing.
  • the housing forms a seat for milling tube ends, supporting and / or protective devices that can be pushed on from the zero side.
  • the roller base body has a maximum outer diameter which is not larger than the outer diameter of the housing.
  • No split rings are required to support the milling tubes, which according to the prior art have to be installed in a forced position.
  • the coupling of the roller base body to the end face of the housing advantageously increases the milling depth that can be achieved.
  • the one-piece support rings according to the invention are easy on that The housing of the reduction gear can be pushed on from the zero side and can be conveniently fixed there for the installer at any point.
  • the circular cylindrical housing of the reduction gear adapted in its cross-sectional shape to the support devices for the milling tube can accommodate tubular or ring-shaped, undivided radial support devices for the milling tube and / or protective devices for the housing over its entire axial length.
  • the seat for the support and / or protection devices can also extend only over part of the axial length of the preferably circular-cylindrical housing.
  • the radial support devices form a floating bearing for the milling tube on the preferably circular cylindrical housing.
  • the tubular or ring-shaped, radial support devices form-fit the preferably circular-cylindrical housing.
  • the milling tubes are advantageously centered automatically, so that the risk of imbalance is minimized.
  • the floating bearing can either be between the milling tube and the radial support device, e.g. a radial support ring, or, if the radial support ring is attached to the milling tube, be formed between the radial support ring and the seat on the outer surface of the housing.
  • the radial support ring and a protective tube possibly attached to the radial support ring can slide on the seat surface, namely the outer surface of the housing of the reduction gear.
  • a centering device for the roller base body can be arranged on the end face of the housing.
  • the centering device consists, for example, of a centering attachment which is either supported on the inner lateral surface of the tubular roller base or is preferably adapted to the inside diameter of a connecting flange of the roller base.
  • the free end of the roller base body is mounted on one side in the easily removable side plate opposite the drive-side plate.
  • the bearing of the roller base body provided on the zero side is a floating bearing, while a fixed bearing is formed on the drive side by the reduction gear.
  • a protective tube that overlaps the reduction gear can be fastened to the radial support device for the milling tube in order to protect the housing against damage.
  • the reduction gear has at least one reduction step in a drive-side gear part at the coupling point with the drive device and at least one further reduction step in the interior of the milling tube in a gear part on the milling drum.
  • the division of the reduction gear into a drive-side gear part at the coupling point of the drive device and into another gear part arranged within the milling drum enables the diameter of the cylindrical housing element to be reduced, as a result of which a greater milling depth can be achieved with milling tubes of shorter overall length.
  • the at least one reduction stage on the drive side is arranged axially offset from the at least one reduction stage on the milling drum side.
  • the gear parts are arranged on both sides of the drive side plate. The two gear parts are coupled to one another via a gear shaft that passes through the side plate.
  • the easily removable side plate provided on the zero side can be designed so that it can be swiveled in order to replace the milling tubes.
  • the preferably circular-cylindrical housing has an outer diameter of at most 400 mm, preferably of at most 350 mm.
  • the roller base body has a first end ring flange which can be coupled axially from the zero side to the end face of the housing, and a second ring flange which is seated in a rotationally fixed manner on the roller base body and which is axially radial with one of the milling tubes ring flange projecting inwards can be coupled.
  • the torque emitted by the housing of the reduction gear as output element is transmitted to the milling tube with the aid of the ring flange of the roller base body and the radial ring flange of the milling tube.
  • Fig. 1 is a self-propelled road milling machine
  • FIGS. 2 embodiments of the invention with milling tubes of different to 7 milling widths.
  • Road milling machines generally consist of a machine frame 2 on which combustion engine and a control station is mounted.
  • the self-propelled road milling machine has height-adjustable lifting columns 3, which are fastened to the machine frame 2 and on which support wheels or chain drives 5 are mounted.
  • the milling drum 4 is located under the machine frame 2 in a drum box 11 which is laterally delimited by the side plates 12, 13.
  • the material processed by the milling drum 4 is ejected in a manner known per se onto a first conveyor belt 9 and conveyed on to a second, height-adjustable and pivotable conveyor belt 16.
  • a milling drum 4 is rotatably mounted between side plates 12, 13 of the roller box 11 which are orthogonal to the axis of the milling drum and is driven by a drive device 6 and a reduction gear 8 mounted on the drive-side plate 12.
  • the milling drum 4 consists of a roller base body 14 which is coupled to a housing 26 of the reduction gear 8 arranged on the drive-side plate 12 and a one-piece milling tube 10 which is exchangeably fastened to the roller base body 14.
  • the roller base body 14 is arranged axially next to the reduction gear part 8b.
  • the roller base body 14 transmits the torque of the reduction gear 8 to the milling tube 10 used in each case.
  • Alternately usable milling tubes 10 of different milling widths and different tooling are available for different road machining operations and can be exchanged quickly.
  • FIG. 2 shows a first exemplary embodiment in which the drive device 6 is arranged on the drive-side plate 12, of which only the pulley 35 is shown in FIG. 2.
  • the internal combustion engine drives this pulley 35, for example, via a composite V-belt.
  • the pulley 35 is coupled directly at a coupling point 18 to a first reduction stage of the reduction gear 8 in a gear part 8a on the drive side.
  • Another reduction stage is coupled to the first reduction stage via a gear shaft 28.
  • pelt The second reduction stage is arranged in a preferably circular cylindrical housing 26 which is arranged on the milling drum side on the drive side plate 12.
  • the housing 26 forms the output element of the reduction gear 8.
  • a roller base body 14 is fastened coaxially to the housing 26 with the aid of an annular flange 15 provided on the end of the roller base body, the free end of the roller base body 14 being mounted in a floating bearing in the side plate 13 opposite the drive side plate 12 ,
  • the side plate 13 is arranged on the zero side of the road milling machine, which identifies the side on which an edge-near milling is possible. On the zero side is the distance from the front edge of the milling drum 4 to the outer wall of the road milling machine 1, e.g. the side plate 13, kept as low as possible.
  • the ring flange 15 of the roller base body 14 has at most the same outside diameter as the cylindrical housing 26, the inside diameter of the ring flange 15 being seated on a cylindrical centering shoulder 27 of the housing 26, so that an exactly coaxially aligned position of the roller base body 14 relative to the reduction gear 8 is ensured is.
  • a second ring flange 17 is provided on the roller base body 14, which serves as a fastening means for the milling tubes 10.
  • ring flanges 19 or other fastening means which cooperate with the ring flange 17, protrude radially inward from the inside of the milling tubes 10.
  • the ring flange 17 transmits the torque of the roller base body 14 to the milling tube 10.
  • the milling tube 10 is equipped, for example, with milling bits 22, the engagement circle 24 of which is shown in FIGS. is indicated by the dashed line.
  • the maximum milling depth FT is indicated by a further dashed line below the side plates 12, 13.
  • the easily removable side plate 13 is preferably pivotable, but can alternatively be axially removable.
  • the milling tube shown in FIG. 2 has a milling width of 750 mm, for example.
  • the free end of the milling tube 10 facing the drive side is supported on a support ring 29 which is pushed onto the housing 26 and fastened there. From this radial support ring 29 protrudes a protective tube 30 attached to the support ring 29, which coaxially surrounds the circular cylindrical housing 26 and protects the housing 26 of the reduction gear 8 against damage.
  • a floating bearing is formed between the radial support ring 29 and the milling tube 10, wherein the milling tube 10 can slide on the support ring 29.
  • the radial support ring 29 and the protective tube 30 can be fastened to the milling tube 10, the common construction of the support ring 29 and the protective tube 30 being seated on the housing 26 and on the seat on the lateral surface 25 of the housing 26 in parallel to the gear shaft 28 can slide like a floating bearing.
  • the roller base body 14 is in the exemplary embodiments of FIGS. 2 to 5 with the housing 26 of the reduction gear 8 and pre-assembled with the ring flange 19. If a change of the milling tube 10 is necessary due to another task during milling, this change can be carried out quickly by first dismantling or pivoting the side plate 13. Then the screw connections between the milling tube and the ring flange 19 must be removed, after which the entire milling tube can be removed from the zero side. Subsequently, the radial support ring 29 with the support tube 30 attached to it is removed from its seat on the housing 26.
  • FIGS. 2 and 3 are assembled in the reverse order.
  • the support ring 29 with the protective tube 30 attached to it is pushed onto the seat on the lateral surface 25 of the housing 26 and fixed there.
  • the milling tube 10 can then be pushed onto the roller base body 14 and the radial support ring 29.
  • a further ring flange 33 can be arranged as an end cover to prevent dirt from penetrating into the interior of the milling tube 10 at the front end of the milling tube 10 prevent.
  • the support ring 29 can also be in one piece with the milling tube 10, in which case the milling tube 10 together with the support ring 29 is pushed onto the roller base body 14.
  • the ring flange 19 can in principle also be in one piece with the milling tube 10.
  • FIG. 3 largely corresponds to the embodiment of FIG. 2, the milling tube 10 having a maximum milling width between the side plates 12, 13.
  • the radially supporting ring flange 29 is supported on the drive end of the housing 26.
  • the protective tube 30 fastened to the annular flange 29 is shortened and ends at the front end of the housing 26 which faces the drive side.
  • FIGS. 2 and 3 it can be provided that the annular flange 29 is attached to the protective tube 30 on the milling tube 10 and is pushed together with the latter onto the lateral surface 25 of the housing 26.
  • the milling tube 10 is even shorter than in the embodiment of FIG. 2, so that a second radial support of the milling tube 10 can be omitted.
  • the protective tube 30 is attached to the ring flange 19 of the milling tube 10.
  • the milling tube 10 together with the protective tube 30 is pushed onto the seat on the lateral surface 25 of the housing 26.
  • both the reduction gear and the roller base body 14 can remain unchanged when the milling width is changed, while the milling tubes can be mounted or dismantled axially from the zero side. Access from the drive side is not necessary.
  • FIG. 5 shows a milling tube with a short milling width, which is screwed to the roller base body 14 only via the ring flange 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Milling Processes (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Road Paving Machines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne une fraiseuse de route automotrice comportant un bâti de machine (2) dans lequel une fraise (4) est logée de façon rotative entre des plaques latérales (12, 13) s'étendant orthogonalement par rapport à l'axe de la fraise (4). Ladite fraise (4) comportant un corps de base (14) et un tube de fraisage (10) peut être entraînée par l'intermédiaire d'un système d'entraînement (6) logé à l'extérieur sur la plaque latérale côté entraînement (12), et un réducteur (8). La plaque latérale (13) faisant face à la plaque latérale côté entraînement (12), peut être démontée aisément pour le remplacement de tubes de fraisage (10) présentant différentes largeurs de fraisage, et définit le côté nul de la machine (1), contre lequel la fraise (4) s'appuie avec un côté frontal de manière à permettre un fraisage à proximité des bords. Selon l'invention, le réducteur (8) est logé côté entraînement et comporte un élément de sortie logé à l'intérieur de la plaque latérale (12), dont l'enveloppe (25) constitue un siège pour des éléments de tube de fraisage pouvant être insérés depuis le côté nul, et le corps de base (14) est couplé sur le côté frontal libre (23) de l'élément de sortie, au réducteur (8), sans entraver l'insertion des éléments de tube de fraisage.
EP03720545A 2002-07-09 2003-04-30 Fraiseuse de route automotrice Expired - Lifetime EP1520076B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10230784 2002-07-09
DE10230784 2002-07-09
DE10232489A DE10232489A1 (de) 2002-07-09 2002-07-18 Selbstfahrende Straßenfräsmaschine
DE10232489 2002-07-18
PCT/EP2003/004517 WO2004005623A1 (fr) 2002-07-09 2003-04-30 Fraiseuse de route automotrice

Publications (2)

Publication Number Publication Date
EP1520076A1 true EP1520076A1 (fr) 2005-04-06
EP1520076B1 EP1520076B1 (fr) 2006-01-18

Family

ID=30116618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720545A Expired - Lifetime EP1520076B1 (fr) 2002-07-09 2003-04-30 Fraiseuse de route automotrice

Country Status (14)

Country Link
US (1) US7144192B2 (fr)
EP (1) EP1520076B1 (fr)
JP (1) JP4190494B2 (fr)
KR (1) KR101005186B1 (fr)
CN (1) CN100365212C (fr)
AT (1) ATE316169T1 (fr)
AU (1) AU2003224140B2 (fr)
BR (1) BR0311553B1 (fr)
CA (1) CA2481779C (fr)
DE (1) DE50302240D1 (fr)
ES (1) ES2255672T3 (fr)
MX (1) MXPA04012008A (fr)
RU (1) RU2308561C2 (fr)
WO (1) WO2004005623A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2010003436A1 (fr) 2008-07-09 2010-01-14 Marini S.P.A. Fraiseuse routière avec tambour de fraisage remplaçable pour différentes largeurs de coupe
DE102009059064A1 (de) 2009-12-18 2011-06-22 Wirtgen GmbH, 53578 Selbstfahrende Straßenfräsmachine

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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
EP3655627A4 (fr) * 2017-07-21 2021-04-21 Roadtec, Inc. Libération de courroie d'entraînement pour tambour de coupe de fraiseuse et ensemble entraînement de tambour auxiliaire
US10787775B2 (en) * 2017-07-21 2020-09-29 Roadtec, Inc. Auxiliary drum drive assembly for milling machine
USD866618S1 (en) * 2018-03-16 2019-11-12 Wirtgen Gmbh Body panels for a road milling machine
CN109112930B (zh) * 2018-07-25 2020-11-20 温州澳鼎建材有限公司 一种道路施工专用洒水碾压车
KR102259506B1 (ko) 2019-10-15 2021-06-02 한국도로공사 노면절삭기의 먼지제거장치
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2010003436A1 (fr) 2008-07-09 2010-01-14 Marini S.P.A. Fraiseuse routière avec tambour de fraisage remplaçable pour différentes largeurs de coupe
DE102009059064A1 (de) 2009-12-18 2011-06-22 Wirtgen GmbH, 53578 Selbstfahrende Straßenfräsmachine
EP2336426A2 (fr) 2009-12-18 2011-06-22 Wirtgen GmbH Machine automobile à fraiser la chaussée
EP2336426A3 (fr) * 2009-12-18 2013-09-18 Wirtgen GmbH Machine automobile à fraiser la chaussée

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MXPA04012008A (es) 2005-03-07
AU2003224140B2 (en) 2008-05-08
AU2003224140A1 (en) 2004-01-23
US7144192B2 (en) 2006-12-05
BR0311553B1 (pt) 2013-08-13
CN1659341A (zh) 2005-08-24
KR20050024333A (ko) 2005-03-10
RU2005103231A (ru) 2005-10-27
KR101005186B1 (ko) 2011-01-04
CN100365212C (zh) 2008-01-30
JP4190494B2 (ja) 2008-12-03
EP1520076B1 (fr) 2006-01-18
BR0311553A (pt) 2005-04-12
CA2481779A1 (fr) 2004-01-15
ATE316169T1 (de) 2006-02-15
CA2481779C (fr) 2009-07-28
WO2004005623A1 (fr) 2004-01-15
US20050158120A1 (en) 2005-07-21
ES2255672T3 (es) 2006-07-01
DE50302240D1 (de) 2006-04-06
RU2308561C2 (ru) 2007-10-20
HK1076134A1 (en) 2006-01-06
JP2005532488A (ja) 2005-10-27

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