EP3034699B1 - Dispositif de travail - Google Patents

Dispositif de travail Download PDF

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Publication number
EP3034699B1
EP3034699B1 EP15194289.3A EP15194289A EP3034699B1 EP 3034699 B1 EP3034699 B1 EP 3034699B1 EP 15194289 A EP15194289 A EP 15194289A EP 3034699 B1 EP3034699 B1 EP 3034699B1
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EP
European Patent Office
Prior art keywords
milling drum
working device
load
milling
drive train
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.)
Active
Application number
EP15194289.3A
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German (de)
English (en)
Other versions
EP3034699A1 (fr
Inventor
Axel Mahlberg
Klaus Vollmann
Sebastian Bötzius
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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Filing date
Publication date
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP3034699A1 publication Critical patent/EP3034699A1/fr
Application granted granted Critical
Publication of EP3034699B1 publication Critical patent/EP3034699B1/fr
Active legal-status Critical Current
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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
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for

Definitions

  • the invention relates to a working device for a tillage device with a milling drum with a milling drum tube, on the surface of which working tools are protruding, which are intended to come into contact with the milled material during the milling process, the working device comprising a drive train for driving the milling drum.
  • Soil cultivation machines are known in various designs.
  • the DE 201 22 928 U1 as a tillage machine, a road milling machine. It has a drive train. This includes a drive motor, a clutch and a gear (the so-called “milling drum gear"), as well as organs conveying these units, in particular shafts, toothed or endless drives.
  • a drive train is to be understood in particular under the above definition.
  • Working tools are the units of the milling drum that interact functionally with the milled material during the work process. For example, these are milling chisels and the holder systems that carry the milling chisels.
  • guide and ejector tools are often mounted on the milling drum as working tools. These have management and support functions.
  • the work result is significantly influenced by the speed of the milling drum.
  • the optimal speed is generally dependent on the application.
  • the milling drum will run unevenly and unevenly, which is shown, among other things, by vibrations of the entire tillage machine and the rocking of the machine. This can also damage the machine. Furthermore, due to the uneven running of the milling drum, the work quality suffers and irregularities in the milling pattern can occur. In extreme cases, the milling drum can "get stuck" with insufficient kinetic energy.
  • a heavy weight of the tillage machine helps to increase smoothness even at low speeds.
  • this is disadvantageous in several respects, since on the one hand this has to make special demands on the transport (large milling machines> 40t ⁇ heavy transport) and on the other hand it limits the possible uses on substrates that are not structurally stable.
  • the US-A-2002/0192025 shows a working device with a load weight according to the preamble of claim 1.
  • load weights are interchangeably arranged on the milling drum to increase the kinetic energy.
  • the invention is based on the finding that the milling drums can run more smoothly if the kinetic energy in the drive train and / or the milling drum is increased.
  • m indicates the amount of the rotating mass and r the distance of this mass from the axis of rotation.
  • the product mr 2 represents the moment of inertia of the moving Mass and ⁇ represent the angular velocity (2 ⁇ ⁇ ⁇ speed). Since the reduction in speed is desired, the invention now starts with the change in the moment of inertia.
  • One or more load weights are installed on one or more rotating parts of the drive train or the milling drum.
  • the load weight can be arranged at any point on the drive train. Accordingly, it can be positioned, for example, after the drive motor.
  • the drive train has a clutch and this, for example via a belt drive, has a transmission, and that the load weight is arranged downstream in the transmission or on the output side.
  • This arrangement relieves the load on the clutch and the transmission, since the impact factor acting on them is then reduced. If the one or more load weights are arranged after the transmission, this unit can also be effectively relieved. This increases the service life of the clutch and transmission.
  • the load weight can be firmly connected to the drive train. It can be interchangeably attached to the tillage machine if it is required specifically for the purpose of smooth running. A weight-optimized adaptation of the machine can also be carried out here. It also simplifies machine transport, since the load weight or loads can be handled separately, for example transported. In addition, the roll change is simplified because a lighter roll is easier to change and handle.
  • At least load weights are arranged in the area of the milling drum.
  • the ballast weights can be used particularly effectively because they can be arranged at a large distance from the axis of rotation. This leads to a particular increase in smoothness, since the moment of inertia, and thus the kinetic energy, depend quadratically on the distance between the mass and the axis of rotation. Thus, the same effect can be achieved with lower load weights at a large distance from the axis of rotation as with large load weights at a small distance from the axis of rotation.
  • the arrangement in the area of the milling drum also brings handling advantages. In particular, the load weights are easily accessible here if they are arranged interchangeably.
  • the load weight or weights have a mass which is suitable for increasing the moment of inertia of the milling drum by at least 10%, particularly preferably by at least 20%. With an increase of at least 20%, there is also the advantage that a significant relief of the machine weight is also possible.
  • An experimental setup by the inventor showed that a 100 kg load on the milling drum enables a reduction of the total machine weight by 100 kg with constant running smoothness.
  • a conceivable variant of the invention is such that the drive train or the milling drum are prepared in such a way that the weight can be increased in two or more stages with the load weights. In this way, the tillage machine can be gradually adapted to the desired work task.
  • a tillage machine according to the invention can be designed such that receptacles with fastening means are arranged on the drive train or the milling drum, by means of which the load weights can be interchangeably coupled. In this way, the load weights can be safely and reliably positioned and fastened in rough construction site operations.
  • the load weights can be formed here, for example, by segments or rings or similar units.
  • the load weights in the interior enclosed by the milling drum tube are attached to the inside of the milling drum tube. Then the load weights are easily protected from attack by the milled material.
  • a possible design of the invention can be such that the load weight is formed by a fluid that is held in a fluid reservoir.
  • a fluid For example, water can be used as the fluid. This can simply be drained off after use.
  • the milling drum can be detachably mounted on coupling pieces of the drive train by means of a fastening arrangement, and that the load weights are interchangeably arranged on the fastening arrangement.
  • the load weights are easily accessible here, especially when the milling drum is dismantled.
  • the load weights are arranged symmetrically to avoid unbalance.
  • a conceivable design of the invention is such that a hardened casting compound, preferably concrete, is used as the load weight. With this measure, the loading can be carried out effectively and inexpensively in a simple manner.
  • the load according to the invention is not possible only with mechanical drives with an internal combustion engine. Rather, a load is also possible with other drive variants of the milling drum. For example, it is conceivable to load hydraulic or electric milling drum drives on their rotating components and / or the milling drum, whereby the same advantages can be achieved.
  • Fig. 1 shows a self-propelled tillage machine 10, namely a road milling machine.
  • the tillage machine 10 has a chassis 12 to which a driver's cab is assigned.
  • a milling drum 20 is mounted in a milling drum box 41.
  • the milling drum 20 has a milling drum tube 21 on the surface 22 of which working tools 30 are applied so as to protrude.
  • the work tools 30 are in Fig. 1 only shown schematically.
  • the work tools 30 usually comprise a chisel holder 32 in which a chisel 31 is interchangeably arranged.
  • the bit holder 32 can be formed in one piece and, as in FIG Fig. 2 shown attached directly to the milling drum tube 21, for example welded.
  • chisel holders 32 can be formed by an upper part and a base part, the upper part being held interchangeably in the base part that is fastened on the milling drum tube 21.
  • One or more chisels 31 can be exchangeably fastened in the chisel holder 32 itself.
  • the milling drum 20 can be installed in the milling drum box 41 of the chassis 12.
  • the milling drum 20 has a fastening arrangement 24. This can be designed, for example, in the form of a fastening flange.
  • the milling drum 20 can be interchangeably connected to the tillage machine 10 via the fastening arrangement 24.
  • the chassis 10 has trolleys 13 and a conveyor 11 is provided.
  • the undercarriages 13 can have wheels or chain drives, for example.
  • the rear right landing gear is pivotably arranged in order to enable milling close to the edges in the folded state.
  • the milling drum 20 is arranged in the unfolded state of the right chassis between the chassis 13 of the rear axle. At least the rear trolleys are preferably adjustable in height to allow adjustment of the milling depth.
  • the milling drum 20 and the trolleys 13 are driven by a drive motor 51.
  • the milling drum 20 can, for example, be arranged between the chassis axles of the front and rear axles within the scope of the invention.
  • the milled material removed by the milling drum 20 can be removed by the conveyor 11.
  • the conveyor device usually has one or more conveyor belts, of which at least the last conveyor belt in the conveying direction can be pivoted relative to the machine frame about a horizontal and a vertical axis.
  • Fig. 2 now shows an example of the design of the milling drum 20 in section.
  • the milling drum 20 has a milling drum tube 21. This is essentially designed as a hollow cylinder and has an outwardly facing surface 22 and an inside 23.
  • the fastening arrangement 24 is mounted in the inner region enclosed by the milling drum 20, namely welded to the inside 23 of the milling drum tube 21.
  • the fastening arrangement 24 is designed as a fastening flange and has pin receptacles. Coupling pieces 56 of a drive piece 58 can be inserted through the pin receptacles will.
  • the coupling pieces 56 are formed like a pin and have an external thread.
  • a nut can be screwed onto the external thread and the fastening arrangement 24 can thus be connected to the drive piece 58.
  • the fastening arrangement 24 strikes an end stop 57 of the drive piece 58. This provides secure support in the axial direction.
  • the drive piece 58 is part of a drive train 50.
  • the drive train 50 can, for example, have a drive motor 51 to which a gear 53 is connected via a clutch 52 and a belt drive. How Fig. 2 reveals, the drive piece 58 is passed through an opening in a bearing wall 42 of the milling drum box 41.
  • Load weights 25 are attached to the milling drum 20.
  • the load weights 25 are interchangeably connected to the milling drum 20.
  • fastening means 26 are arranged in a protected manner in the inner region of the milling drum tube 21.
  • the fastening means 26 are particularly preferably arranged on the inside 23 of the milling drum tube 21 and / or on the fastening arrangement 24.
  • the fastening means 26 can be designed as screw bolts on the fastening arrangement 24.
  • the load weights 25 can be pushed onto these with suitable fastening receptacles.
  • the load weights 25 can then be secured by means of a nut.
  • the fastening means 26 to include receptacles 27 to be pushed in or onto the load weights 25.
  • a receptacle 27 is attached to the inside 23 of the milling drum tube 21 in the form of a pocket.
  • the load weight 25 can be pushed into this. It can then be closed using a lid 27.1 secure.
  • the cover 27.1 can, for example, be screwed to the fastening means 26 and / or the milling drum tube 21. It is also conceivable that an area is provided as a receptacle 27 in the milling drum tube 21, into which segments or rings are inserted.
  • the load weights 25 serve to increase the moment of inertia of the milling drum in favor of improved smoothness. This was described in detail at the beginning. Reference is made to the corresponding statements.
  • the load weights 25 are preferably spaced as far radially as possible and therefore as in FIG Fig. 2 shown, according to the invention located on the inside 23 of the milling drum tube 21. In this way, the moment of inertia of the milling drum is significantly influenced. Instead of the in Fig.
  • the load weights 25 as insert parts, for example in the form of iron parts or screw-on weights, it can also be provided that a cavity is formed on the milling drum 20, which is filled with a casting compound, for example with concrete, or into which a fluid is filled and can be drained again.
  • Fig. 3 shows a further embodiment variant of the invention.
  • the housing 40 of the chassis 12 is shown as an example.
  • the housing 40 forms the milling drum box 41. This is partitioned off by means of a bearing wall 42. Opposing the bearing wall 42, the milling drum box 41 is closed with an end wall 43.
  • a coupling 52 and a gear 53 of a drive train 50 are accommodated outside the milling drum box 41.
  • the gear 53 can also be arranged, for example, at least partially in the milling drum 50.
  • To the Coupling 52 is coupled to a drive motor 51 via a drive shaft 55.
  • the drive motor 51 is usually a diesel engine, which is accommodated in the chassis 12 of the tillage machine 10.
  • the clutch 52 is suitable for being coupled to the gear 53, for example by means of a further drive shaft or by means of an endless drive.
  • the gear 53 itself is connected on the output side to the milling drum 20.
  • the connection can be made according to the attachment Fig. 2 be made.
  • the drive train 50 includes the drive motor 51, the clutch 52 and the transmission 53.
  • the drive train 50 includes the drive shaft 55 and the other drive shafts or endless drives conveying the aforementioned components.
  • the milling drum 20 again has the working tools 30 attached on its outside surface 22.
  • a drive piece 58 is reinserted into the interior of the milling drum 20 and connected to a fastening arrangement 24 of the milling drum 20.
  • Fig. 3 can now be seen that the rotatable drive member 58 has a hollow chamber as a fluid reservoir 54.
  • a liquid for example water, can be filled into the hollow chamber via a filler neck 28. The liquid then serves as a load weight 25.
  • the filler neck 28 is designed so that the water can be drained from the fluid reservoir 54 again after the milling drum 20 has been used.
  • load weights can be attached to the rotating parts at any point on the drive train.
  • Fig. 3 shows, by way of example, the attachment of a load weight 25 in the area of the drive shaft 55.
  • the load weight is advantageously attached to a rotating part of the drive train 50 in the area after the gear 53. The impact load on the transmission 53 and the clutch 52 is thus minimized.
  • the damping of intermediate drive components for example belt drives, is then minimized.
  • the load weights 25 can be fixed to the drive train 50 or can be connected to it interchangeably.
  • the interchangeable attachment offers the advantage that the machine can be flexibly adapted to different framework conditions and tasks.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Road Repair (AREA)
  • Soil Working Implements (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Harvester Elements (AREA)

Claims (10)

  1. Dispositif de travail pour un dispositif de traitement du sol (10), ledit dispositif de travail comprenant un rouleau fraiseur (20) comportant un tube de rouleau fraiseur (21), sur la surface (22) du tube de rouleau fraiseur (21) des outils de travail (30) étant disposés en saillie, lesdits outils de travail étant situés pour entrer en contact, lors du processus de fraisage, avec la matière à fraiser, ledit dispositif de travail comprenant une chaîne cinématique (50) pour entraîner le rouleau fraiseur (20) et, dans un espace intérieur enfermé par le tube du rouleau fraiseur (21), pour augmenter l'énergie cinétique, des poids de surcharge (25) étant disposés, caractérisé en ce que lesdits poids de surcharge (25) sont disposés de manière interchangeable, que sur le rouleau fraiseur (20), des logements (27) et/ou des moyens de fixation (26) sont disposés, au moyen desquels les poids de surcharge (25) peuvent être couplés de manière interchangeable et que lesdits poids de surcharge (25) sont disposés symétriquement sur une face intérieure (23) du tube de rouleau fraiseur (21) pour éviter des balourds.
  2. Dispositif de travail selon la revendication 1,
    caractérisé en ce que,
    sur la chaîne cinématique (50), un poids de surcharge (25) est disposé pour augmenter l'énergie cinétique, de préférence de manière interchangeable.
  3. Dispositif de travail selon la revendication 1 ou 2,
    caractérisé en ce que
    la chaîne cinématique (50) comprend un embrayage (52) et une transmission (53) montée en aval dudit embrayage et au moins un poids de surcharge (25) est disposé dans le sens de l'entraînement en aval, sur ou dans la transmission (53).
  4. Dispositif de travail selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    au moins un poids de surcharge (25) comprend une masse, laquelle est appropriée pour augmenter le moment d'inertie du rouleau fraiseur (20) d'au moins 20 %.
  5. Dispositif de travail selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    l'au moins un poids de surcharge (25) comprend une masse d'au moins 100 kg, de manière particulièrement préférée d'au moins 200 kg.
  6. Dispositif de travail selon l'une quelconque des revendications 2 à 5,
    caractérisé en ce que
    la chaîne cinématique (50) et/ou le rouleau fraiseur (20) sont conçus de telle sorte que, à l'aide du poids de surcharge (25) sur la chaîne cinématique ou des poids de surcharge (25) sur le rouleau fraiseur (20), le poids peut être augmenté en au moins deux étapes.
  7. Dispositif de travail selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    au moins un poids de surcharge (25) est formé par un fluide, lequel est maintenu dans au moins un réservoir de fluide (54).
  8. Dispositif de travail selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    le rouleau fraiseur (20), au moyen d'un agencement de fixation (24), peut être monté de manière amovible sur des pièces d'accouplement (56) de la chaîne cinématique (50) et qu'au moins un poids de surcharge (25) est disposé de manière interchangeable sur l'agencement de fixation (24).
  9. Dispositif de travail selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    une matière coulée durcie, de préférence du béton, est utilisée en tant que poids de surcharge (25).
  10. Engin de construction routière, en particulier fraiseuse routière, comprenant un dispositif de travail selon l'une quelconque des revendications 1 à 9.
EP15194289.3A 2014-12-17 2015-11-12 Dispositif de travail Active EP3034699B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014118802.0A DE102014118802B4 (de) 2014-12-17 2014-12-17 Arbeitseinrichtung

Publications (2)

Publication Number Publication Date
EP3034699A1 EP3034699A1 (fr) 2016-06-22
EP3034699B1 true EP3034699B1 (fr) 2020-04-29

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ID=54548047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15194289.3A Active EP3034699B1 (fr) 2014-12-17 2015-11-12 Dispositif de travail

Country Status (4)

Country Link
US (1) US10774482B2 (fr)
EP (1) EP3034699B1 (fr)
CN (2) CN105714663B (fr)
DE (1) DE102014118802B4 (fr)

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Publication number Priority date Publication date Assignee Title
DE102014118802B4 (de) * 2014-12-17 2019-06-19 Wirtgen Gmbh Arbeitseinrichtung
CN108044033B (zh) * 2017-12-06 2020-01-07 湖南三一路面机械有限公司 铣刨鼓的制备方法、铣刨鼓、铣刨机的制备方法及铣刨机
DE102019108759B4 (de) * 2019-04-03 2024-06-20 Wirtgen Gmbh Bodenbearbeitungsmaschine
EP3993963A4 (fr) 2019-08-23 2022-08-24 Realtime Robotics, Inc. Planification de mouvement destinée à des robots afin d'optimiser la vitesse tout en conservant des limites d'accélération et de secousse
CN110629651A (zh) * 2019-10-23 2019-12-31 三一汽车制造有限公司 铣刨机的侧板的开启结构、侧板和铣刨机

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Also Published As

Publication number Publication date
CN105714663A (zh) 2016-06-29
DE102014118802A1 (de) 2016-06-23
EP3034699A1 (fr) 2016-06-22
CN205604044U (zh) 2016-09-28
US10774482B2 (en) 2020-09-15
CN105714663B (zh) 2019-10-15
US20160177520A1 (en) 2016-06-23
DE102014118802B4 (de) 2019-06-19

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