EP1978157A2 - Machine de fraisage - Google Patents

Machine de fraisage Download PDF

Info

Publication number
EP1978157A2
EP1978157A2 EP08005638A EP08005638A EP1978157A2 EP 1978157 A2 EP1978157 A2 EP 1978157A2 EP 08005638 A EP08005638 A EP 08005638A EP 08005638 A EP08005638 A EP 08005638A EP 1978157 A2 EP1978157 A2 EP 1978157A2
Authority
EP
European Patent Office
Prior art keywords
liquid
milling drum
milling
drum
nozzles
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
EP08005638A
Other languages
German (de)
English (en)
Other versions
EP1978157B1 (fr
EP1978157A3 (fr
Inventor
Frank Dr. Will
Rafael Schomaker
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.)
Dynapac GmbH
Original Assignee
Dynapac 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
Application filed by Dynapac GmbH filed Critical Dynapac GmbH
Publication of EP1978157A2 publication Critical patent/EP1978157A2/fr
Publication of EP1978157A3 publication Critical patent/EP1978157A3/fr
Application granted granted Critical
Publication of EP1978157B1 publication Critical patent/EP1978157B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking

Definitions

  • the invention relates to a road milling machine according to the preamble of claim 1.
  • Road milling serve, in particular, to mill off the road surface of damaged roads, preferably over the entire area.
  • a so milled road serves as a substructure for a road to be renewed, on which only a new road surface is to be applied.
  • Such road milling machines are usually self-propelled. They have a rotating, drivable cylindrical milling drum. Outside a cylindrical surface of the milling drum a plurality of projecting cutting tool is arranged.
  • the object of the invention is therefore to provide a road milling machine, which allows an effective supply of liquid to the nozzles without filling the interior of the milling drum with liquid.
  • a road milling machine to solve this problem has the features of claim 1. Thereafter, it is provided to supply the nozzles directly through a arranged in the milling drum pipe network with liquid. Due to the only a relatively small volume of liquid receiving line network no longer needs the entire interior of the milling drum to be filled with liquid. The milling drum no longer serves as a water reservoir and therefore does not have to be liquid-tight. From the mains network, each individual nozzle can be individually supplied with liquid, preferably with pressurized liquid, such as water. Alternatively, the piping network can supply groups of several selected nozzles with liquid at the same time. As a result, it is no longer necessary to supply all the nozzles with liquid at the same time and to always allow liquid to escape from all the nozzles.
  • the piping allows an individual and above all selective supply of each nozzle or groups of nozzles with liquid. It is preferably provided to supply only such nozzles currently with liquid, which are in the work area or shortly before and / or after. In other words, there is such a sectoral jetting. In this way, with relatively low water consumption of the dust can be counteracted where dust can occur, namely in the work area of the cutting chisel.
  • the conduit network does not thereby move relative to the rotating parts of the milling drum, whereby it can be fixedly arranged in the same.
  • nozzles or groups of nozzles are selectively supplied with liquid from the liquid network, which are currently located in a certain peripheral region of the milling drum. This is preferably at least the working area of the milling drum. But it can also be done just before the work area and / or a piece behind the work area of the milling drum, a liquid supply of currently located here nozzles. In other areas, however, currently located nozzles are not supplied with liquid.
  • the pipe network in the milling drum directly from the shaft with liquid to supply.
  • the line network can be connected directly to the shaft because the shaft and the line network rotate equally with the milling drum.
  • At least one axial supply channel for the liquid supply of the pipeline network is arranged in the rotating shaft.
  • the at least one supply channel to an end face of the shaft is open, so preferably designed as a branch channel. It can be supplied from one end of the wave forth the piping network inside the milling drum with liquid.
  • That end face of the shaft in which the at least one axial feed channel opens into the shaft is assigned a stationary cap according to a further proposal of the invention.
  • the stationary cap makes it possible to connect the milling drum to an external liquid supply, for example a liquid tank on the road milling machine. Due to the relative movement between the stationary cap, which serves as a fluid connection of the milling drum, and the rotating shaft is provided at least one seal between the cap and the end face of the shaft associated therewith.
  • a plurality of axial supply channels are arranged in the shaft.
  • the mutually parallel feed channels are then spaced from a longitudinal center axis of the shaft, wherein longitudinal axes of the axial feed channels at a distance parallel to the longitudinal central axis of the shaft.
  • the cap is preferably designed to supply liquid to only one or a few supply channels of the shaft.
  • the liquid channels can be supplied discontinuously or periodically with liquid. In other words, there is no constant supply of liquid to all the supply channels, but individual supply channels are supplied with liquid gradually at intervals, that is, alternately.
  • the stationary cap which, in the event that only one supply channel can be supplied with liquid over a certain angle of rotation of the milling drum, allows the supply of liquid to the feed channel currently used for the supply of liquids.
  • the respective supply channel has left a selected angular range of the milling drum, the liquid supply of this supply channel is interrupted by the cap and there is a liquid supply to the next supply channel in the rotating shaft. As a result, the desired sectoral spraying comes about.
  • this axis is also the liquid supply of the pipe network in the milling drum, but not directly. Rather, in this embodiment of the milling drum, the stationary axis is at least partially surrounded by a rotating distributor bushing.
  • the distribution socket runs like the pipe network with the milling roller equally, whereby the to the axis, ie to the center of the milling drum, directed ends of the pipe network are firmly connected to the distribution socket.
  • the distribution socket has a plurality of distribution holes distributed over its circumference or connecting channels.
  • the distribution holes or connection channels make it possible to connect the fluid lines of the line network.
  • the stationary axis has only one radial connecting channel, which emanates from the central axial supply channel. But there are several distribution holes arranged in the distribution box. It is further provided that the distributor bores in the distributor bushing correspond with the connecting channel in the axis in such a way that only a few distributor bores of the distributor bushing can be supplied with liquid from the connecting channel in the axis. Then only selected nozzles are supplied with liquid for a certain period of time.
  • individual nozzles or a group of selected nozzles can be supplied with liquid only over a certain circumferential area of the cylindrical jacket surface of the milling drum, if this selected circumferential area is located in a specific zone relative to a full circle rotation of the milling drum.
  • This zone is preferably the working area of the cutting tools and possibly a piece in front of and / or behind.
  • the pipeline network has liquid lines emerging from the shaft rotating with it or the co-rotating distributor bushing surrounding the stationary axis.
  • the liquid lines preferably run approximately radially directed inside the milling drum.
  • the fluid lines are formed in particular from flexible hoses.
  • the liquid lines can also be made of rigid tubes of any material, such as steel or plastic.
  • the pipeline network can also have distribution pipes and / or distribution chambers in addition to the liquid lines.
  • the distribution pipes or distribution chambers preferably run longitudinally through the interior of the milling drum, with a parallel distance to the longitudinal central axis of the same.
  • Each axially directed distributor tube is preferably supplied with fluid by a single radial fluid line, it also being possible for a plurality of fluid lines to serve for supplying liquid to a distributor tube.
  • Each manifold in turn feeds several nozzles with liquid at the same time. It is preferably provided that each distributor tube simultaneously supplies a row of liquid to a row of nozzles adjacent to one another in the longitudinal direction of the milling drum. It can then at times, in particular in the work area of the milling drum, simultaneously emerge from a series of nozzles liquid to prevent dust formation during milling of the damaged road surface. It is also conceivable, however, that several rows of nozzles with liquid from a common (single) manifold or even several parallel manifolds can be supplied with liquid in the work area simultaneously.
  • the ductwork has distribution chambers in addition to the liquid ducts, these are profiles, namely flat U-profiles, half-round profiles or arcuate profiles extending in the longitudinal direction of the milling drum.
  • the distribution chambers are attached with their open sides on the inner wall of the cylindrical surface of the milling drum liquid-tight, for example by welding. Several such distribution chambers are distributed uniformly over the circumference of the lateral surface. Each distribution chamber is fed from at least one liquid line.
  • the distribution chambers are preferably formed so that they extend in the circumferential direction of the milling drum over a larger area than the cylindrical distribution pipes.
  • the pipe network for supplying the nozzles with the co-rotating with the cylindrical surface of the milling drum drum bottoms.
  • the supply of the pipeline network with liquid from the outside through a drum base.
  • This drum base is then associated with a stationary lid, which is sealed against the moving drum bottom.
  • the connections of the liquid lines of the line network to the one-sided drum base of the milling drum, but also on the cover are then eccentrically at a distance from the longitudinal center axis of this variant of the invention optionally a fixed axis or a rotating shaft having milling drum.
  • connection on the cover and the connections of the respective liquid line on the drum base are provided that the connections on the stationary cover on the one hand and on the drum rotating drum base on the other hand only temporarily overlap, whereby only over a certain sector of the circumference the milling drum liquid supply of the nozzles takes place, preferably over the working area of the milling tool and, if appropriate, shortly before and / or behind (sectoral spraying).
  • the sectoral spraying can be positioned more accurately by arranging the fluid connections with increasing distance from the longitudinal center axis of the milling drum.
  • Corresponding arcuate grooves in the disc and / or the drum bottom corresponding thereto serve to define the peripheral region through which a liquid jet is to emerge from the respective nozzle. By almost any design of these grooves, the liquid outlet from the different nozzles can be individually predetermined.
  • the Fig. 1 shows a road milling machine 10 with a cylindrical milling drum 11 for milling defective and / or worn road surfaces.
  • the road milling machine 10 shown is self-propelled.
  • the road milling machine 10 has a corresponding drive, which also serves to drive the milling drum 11 about a horizontal axis of rotation 12, which corresponds to the longitudinal central axis of the milling drum 11, rotating.
  • the milling drum 11 To drive the road milling machine 10 and in particular also the milling drum 11 is preferably an internal combustion engine that drives hydraulic pumps, which in turn are used to drive hydraulic motors. But it is also conceivable that the internal combustion engine drives a generator that generates electricity to drive electric motors.
  • the road milling machine 10 has a chassis 13, which is formed in the embodiment shown as a crawler chassis. However, the chassis can also be designed as a wheel drive, especially for smaller road milling machines.
  • the chassis 13 has a chassis frame 14 which carries a Fräswalzenkasten 15.
  • the Fräswalzenkasten 15 extends transversely to the milling direction 16 of the road milling machine 10, preferably over the entire width thereof, in particular over the entire width of the chassis frame 14. It is also conceivable that, especially for smaller road milling the milling roller 11 only one Part of the width of the chassis frame 14 extends.
  • the cylindrical milling drum 11 is arranged so that its horizontal axis of rotation 12 extends transversely to the milling direction 16.
  • the milling drum 11 is driven so that its direction of rotation 17 with respect to the representation in the Fig. 1 runs with the milling direction pointing to the left in the clockwise direction 16, so that the milling drum 11 operates against the milling direction 16.
  • the milling drum 11 has a cylindrical lateral surface 18.
  • the end faces of the lateral surface 18 are closed by annular drum bottoms 19.
  • the milling drum 11 is hollow, namely has a cylindrical interior 20.
  • the chisel. 21 are usually evenly distributed on the outer circumference of the lateral surface 18 of the milling drum 11, and in general like a grid.
  • the cutting tools 21 project outwards in relation to the milling drum 11, preferably all the cutting tools 21 equally. All milling bits 21 are inclined to the same extent with respect to the tangent to the attachment point of the outer side of the lateral surface 18, namely leading to their tips 22 in the direction of rotation 17 leading ( Fig. 2 and 6 ).
  • the milling drum 11 is further provided with nozzles 23, from which liquid jets, for example jets of pressurized water, can escape.
  • the nozzles 23 are like the cutting chisel 21 above distributed on the outer circumference of the lateral surface 18 of the milling drum 11.
  • the shorter nozzles 23 are located behind the chisels 21, wherein preferably one nozzle 23 is arranged behind each chisel 21.
  • the nozzles 23 can also be arranged at other locations of the milling drum 11, for example between adjacent milling tools or beside them.
  • the piping 24 is fixedly disposed in the interior of the milling drum 11 so that it is synchronous with the lateral surface 18th and the drum bases 19 of the milling drum 11 rotates, so no relative movement between the pipe network 24 and the milling drum 11 takes place.
  • the line network 24 is fixed, that is, arranged immovably in the milling drum 11 relative to the peripherally driven parts of the milling drum 11.
  • the line network 24 is in both in the Fig. 2 to 9 shown embodiments of the invention substantially the same design.
  • the line network 24 has a plurality of radially directed fluid lines 25 and a plurality of axially extending through the milling drum 11 distributor members, which in the embodiments of the Fig. 2 to 9 are formed as distribution pipes 26.
  • the distribution pipes 26 are preferably rigid as elongated, straight metal or plastic pipes.
  • the radial fluid lines 25 are preferably made of a flexible material, that is formed like a tube.
  • the distribution pipes 26 are arranged at a small distance close to the inner wall of the cylindrical surface 18 of the milling drum 11. All manifolds 26 extend parallel to each other and also parallel with the same distance from the axis of rotation 12 of the milling drum 11. In each case a manifold 26 is associated with a longitudinal direction of the milling drum 11 extending row of nozzles 23. That is, a row of nozzles 23 is supplied with liquid from a manifold 26. In the embodiments shown the Fig. 2 to 9 the distributor tubes 26 extend over approximately the entire length of the interior 20 of the milling drum 11 (FIG. Fig. 3 and 7 ). The milling drum 11 shown has fifteen juxtaposed cutter bits 21.
  • each cutting bit 21 is assigned a nozzle 23, a row of nozzles also has fifteen preferably identical nozzles 23. All fifteen nozzles 23 of the series are thus supplied with liquid from a distributor tube 26.
  • the liquid supply to each manifold 26 is effected by a respective radial liquid line 25.
  • the Fig. 2 and 6 let recognize that because of the on a pitch circle with a smaller diameter than the lateral surface 18 of the milling drum 11 and center on the rotation axis 12 evenly distributed larger number of manifolds 26 (in the embodiments shown the Fig. 2 to 9 Eighteen distribution pipes 26) and the supply of each manifold 26 via a liquid line 25 with liquid line network 24 in the axial direction of the milling drum 11 has a star-shaped configuration.
  • the milling drum 11 has a rotating shaft 27. With the rotating shaft 27, the drum surface 19 carrying the drum base 19 are firmly connected.
  • the shaft 27 is mounted on opposite sides of the drum bases 19 in the stationary Fräswalzenkasten 15.
  • axial supply channels 28 Inside the shaft 27 are in the first embodiment ( Fig. 2 to 5 ) arranged six axial supply channels 28. All six supply channels 28 are equally formed.
  • All feed channels 28 are equidistant from the axis of rotation 12 of the milling drum 11 forming longitudinal central axis of the shaft 27, namely arranged at the same distance on a longitudinal center axis surrounding the pitch circle. All supply channels 28 are open at one end by opening into a lying outside the Fräswalzenkastens 15 end face 29 of the shaft 27. At opposite ends of the distribution pipes 26 are closed by these are formed by blind holes or branch channels in the shaft 27.
  • the end face 29, in which all distribution pipes 26 open, is associated with a fixed cap 30.
  • the cap 30 extends with a cylindrical bottom wall 31 in front of the end face 29 of the shaft 27.
  • a unilaterally connected to the bottom wall 31 of the cap 30 annular wall 32 covers a short protruding from the Fräswalzenkasten 15 end portion of the shaft 27.
  • the stationary cap 30 is opposite to rotating shaft 27 sealed by both an axial seal 33 and a radial seal 34.
  • connection bore 35 is arranged in the bottom wall 31 of the cap 30, a radially directed connection bore 35 is arranged.
  • connection bore 35 At the inside of the bottom wall 31 lying end of the connection bore 35 includes an arcuate groove 36 which extends from the front side 29 of the shaft 27 facing inside of the bottom wall 31.
  • the arcuate groove lies on a pitch circle centered on the axis of rotation 12, which corresponds to the pitch circle on which the longitudinal center axes of all supply channels 28 are arranged in the shaft 27 ( 4 and 5 ).
  • the groove 36 is surrounded on the outside by a circumferential seal 37.
  • connection bore 35 in the cap 30 is supplied from the outside with liquid from an external liquid reservoir, for example a liquid tank, in particular a water tank, the road tiller 10 with liquid.
  • the liquid passes at the end of the connection bore 35 in the region of the arcuate groove 36.
  • This arcuate groove 36 is formed in the embodiment shown so that only a supply channel 28 or briefly in the transition from a supply channel 28 to the adjacent supply channel 28, two supply channels 28 with liquid are available. It comes as a sectoral fluid supply of individual supply channels 28 through by one round of the milling drum 11 successively the individual supply channels 28 are supplied with liquid, in each case only over part of a revolution of the milling drum 11. In the embodiment shown with six supply channels 28 is after and after more than a sixth of a full circle rotation of the milling drum 11, so supplied a circumferential sector of about 60 ° with liquid.
  • Fig. 2 to 5 are arranged on the circumference of the milling drum 11 eighteen rows with fifteen nozzles 23. But because only six supply channels 28 are provided, three adjacent rows of nozzles are supplied with liquid simultaneously by branching off from each supply channel 28 in the shaft 27, three liquid lines 25 of the network 24, which lead to three different, adjacent distribution pipes 26 of the network 24.
  • the feed channel 28 currently being supplied with liquid from the cap 30 comes out of the region of the groove 26 by turning the milling drum 11 by a corresponding angle, the next following feed channel 28 is supplied with liquid, whereby liquid from the three next nozzle rows emerges simultaneously ,
  • one sixth of the liquid outlet from the different nozzles 23 thus takes place during one revolution of the milling drum 11.
  • Fig. 6 to 9 show a second embodiment of the invention, in which the same reference numerals are used as for the functionally identical parts as in the first embodiment described above.
  • the Road Tiller 10 of the Fig. 6 to 9 differs from the road milling machine 10 described above only in that the milling drum 11 is mounted on a stationary axle 38.
  • the axis 38 is fixed, so non-rotatably mounted in the Fräswalzenkasten 15. This storage can take place at one or both opposite ends of the axle 38.
  • drum bases 19 are rotatably mounted on both ends of the axle 38.
  • a single axial supply channel 41 Centered in the axis 38, namely on the longitudinal center axis 40 thereof, which simultaneously forms the axis of rotation 12 of the milling drum 11, there is a single axial supply channel 41.
  • the supply channel 41 is formed only as a short, from the end face 39 outgoing stitch channel , Via a radial connecting channel 42, the supply channel 41 opens at a location of the peripheral surface of the axis 38. In the illustrated embodiment, this point is not far away from the end face 39 of the axis 38.
  • the connecting channel 42 opens into the lateral surface of the axis 38
  • a groove 43 extending in the longitudinal direction of the axis 38.
  • the groove 43 are associated with straight seals 44 at a short distance from their opposite longitudinal edges. These extend only over the region of the groove 43.
  • a distributor bushing 45 is assigned to the end region of the axle 38 extending from the end face 39.
  • the distributor bush 45 is accommodated in an externally accessible ring 46 of the drum base 19 of the milling drum 11 assigned to the relevant end region of the lateral surface 18.
  • the distribution socket 45 is thus accessible from the outside.
  • the distribution sleeve 45 rotates together with the milling drum 11.
  • a connection between the manifold bushing 45 and the drum base 19 is present, which in the Fig. 8 symbolically represented as a bracket 47, but can certainly be realized in various other ways.
  • the rotating manifold bushing 45 is sealed from the stationary axle 38 by two radial seals 48 in their opposite end regions.
  • the radial seals 48 define opposite end portions of the elongated groove 43 in the axis 38. Between the spaced radial seals 48 are the longitudinal seals 44 on opposite longitudinal sides of the groove 43. It is characterized the groove 43 in the stationary axis 38 on all sides with respect to the Milling roller 11 rotating distributor bushing 45 sealed against liquid leakage.
  • the distribution socket 45 is provided with a plurality of radial connection channels 49. All connecting channels 49 are formed as through holes of the same diameter.
  • the connecting channels 49 are distributed in a grid-like manner on the peripheral surface of the distributor bush 45 ( Fig. 9 ).
  • the screening is made such that the connecting channels 49 are located on five (imaginary) rings 46 distributed in the longitudinal direction of the distributor bushing 45 (FIG. Fig. 8 ).
  • At each opening in the cylindrical outer surface of the manifold bushing 45 connecting channel 49 is a liquid line 25 of the pipe network 24 connected.
  • the liquid lines 25 are passed through openings 50 in the annular receptacle of the manifold bushing 45 in the drum base 19 and extend from there radially directed outward to manifolds 26 of the conduit network 24.
  • the nozzles 23 as described in connection with the first embodiment with liquid supplied for selectively spraying the working area of the milling drum 11 with emerging from the respective nozzles 23 liquid jets.
  • connecting channels 49 Only those connecting channels 49, which reach the region of the groove 43 during one revolution of the milling drum 11, are supplied with liquid over part of the circulation of the milling drum 11.
  • the connecting channels 49 gradually receive an overlap with the groove 43, so that always other connection channels 49 are supplied with liquid from the stationary shaft 38, wherein during a full rotation of the milling drum 11, a liquid supply of all nozzles 23 has taken place, but according to the invention not at the same time, but with a time delay.
  • the relative arrangement of the groove 43 in the axis 38 is in turn made so that only through such connection channels 49, a water supply of those liquid lines 25 which feed the nozzles 23, which are currently in the lower reversal point of the milling drum 11 and seen in the direction of rotation 17 before it So in the work area of the cutting chisel 21. It only emerge from such nozzles 23 water jets, which contribute to the prevention of dust in the milling area.
  • the embodiment of Fig. 10 differs from the embodiments described above only in terms of the line network 24.
  • This line network 24 consists of manifolds, which are designed as distribution chambers 51, and flexible liquid lines 25.
  • the milling drum 11 of the embodiment of Fig. 10 as the milling rollers 11 of the embodiments of the Fig. 2 to 9 formed, which is why the same reference numerals in the Fig. 10 be used.
  • Each distribution chamber 51 extends in the circumferential direction of the milling drum 11 seen over several rows of nozzles 23, in the embodiment shown two successive rows of nozzles 23. From each distribution chamber 51 thereby simultaneously in the longitudinal direction and in the circumferential direction of the milling drum 11 adjacent nozzles 23 can be supplied with liquid , Because each distribution chamber 51 simultaneously supplied in the circumferential direction of the milling drum 11 successive nozzles 23 with liquid, are in the in the Fig. 10 Milling roller 11 shown only nine distribution chambers 51 are provided, which are distributed uniformly on the inner circumference of the lateral surface 18 of the milling drum 11, that is, half the number of distribution pipes 26 according to the embodiments described above.
  • Each distribution chamber 51 has a flat in the longitudinal direction of the lateral surface 18 seen U-shaped profile with relatively short parallel legs 52 and a fairly long leg 52 connecting web 53.
  • the flat distribution chambers 51 are connected to the free ends of their legs 52 on the inside of Jacket surface 18 of the milling drum 11 welded, and that liquid-tight.
  • the length of the distribution chambers 51 is selected so that they extend at least over that region of the width of the milling drum 11, the cutting tool 21 are assigned.
  • the distributor chambers 51 that is to say the flat U-profiles for forming the same, running continuously over the entire width of the lateral surface 18 of the milling drum 11. Then the free ends of the U-shaped distribution chamber 51 ends at the drum bottoms 19 of the milling drum 11, with which they are then welded liquid-tight.
  • Each liquid-tight distribution chamber 51 is liquid, in particular pressurized liquid, fed by a preferred in the embodiment shown flexible liquid line 54. Because in the embodiment of Fig. 10 The distribution chambers 51 each feed two successive rows of nozzles 23 with pressurized liquid, and consequently only half the number of distribution chambers 51 are required compared to the distribution pipes 26 of the two previous embodiments, only half the number of liquid lines 54 is required, namely in shown embodiment in a liquid line 54 per distribution chamber 51 only nine liquid lines 54th
  • water As a liquid, water is used in the simplest case.
  • the water or other liquid is preferably provided with an additive which reduces the surface tension of the water.
  • the additive may be, for example, a surfactant or the like.
  • the nozzles 23 are also supplied with pressurized liquid, whereby from the nozzles 23 correspondingly strong focused or diffuse liquid jets, in particular water jets exit.
  • liquid supply in particular the liquid lines of the pipe network from a rotating drum bottom of the milling drum, which then at the location of the cap 30 at least that part of the drum base 19 is assigned a disc or a fixed ring is, in which the liquid lines open in the drum bottom.
  • individual nozzles or selected groups of nozzles can be supplied with liquid by corresponding grooves either in the drum base or in the disk or the ring gradually during one revolution of the milling drum to make a sectoral spraying in particular of the working area of the milling drum can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Milling Processes (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Road Repair (AREA)
EP08005638.5A 2007-04-05 2008-03-26 Machine de fraisage Not-in-force EP1978157B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007016796 2007-04-05

Publications (3)

Publication Number Publication Date
EP1978157A2 true EP1978157A2 (fr) 2008-10-08
EP1978157A3 EP1978157A3 (fr) 2013-05-15
EP1978157B1 EP1978157B1 (fr) 2017-02-22

Family

ID=39590510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005638.5A Not-in-force EP1978157B1 (fr) 2007-04-05 2008-03-26 Machine de fraisage

Country Status (3)

Country Link
US (1) US8147164B2 (fr)
EP (1) EP1978157B1 (fr)
DE (1) DE102008015431B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175070A2 (fr) 2008-10-09 2010-04-14 Wirtgen GmbH Fraiseuse de route
CN103669186A (zh) * 2012-09-18 2014-03-26 常州市瑞泰工程机械有限公司 铣刨齿

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8556536B2 (en) 2009-01-02 2013-10-15 Heatwurx, Inc. Asphalt repair system and method
US8562247B2 (en) 2009-01-02 2013-10-22 Heatwurx, Inc. Asphalt repair system and method
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US9416499B2 (en) 2009-12-31 2016-08-16 Heatwurx, Inc. System and method for sensing and managing pothole location and pothole characteristics
USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device
US9371618B2 (en) 2014-08-25 2016-06-21 Caterpillar Paving Products Inc. Cold planer spray system and method
CN114703728B (zh) * 2022-01-27 2023-08-18 河南省公路工程局集团有限公司 高速公路改扩建专用铣刨机
DE102024113970A1 (de) * 2024-05-17 2025-11-20 Bomag Gmbh Fräseinrichtung mit Berieselungsvorrichtung und Bodenfräsmaschine mit einer solchen Fräseinrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110763A (en) * 1963-10-29 1968-04-24 Coal Industry Patents Ltd Dust suppression means for use with mining machines
GB2088441B (en) * 1980-11-24 1985-04-11 Padley & Venables Ltd Mineral mining pick and holder assembly
US4786111A (en) * 1983-09-26 1988-11-22 Zekeriya Yargici Apparatus and method for delivering liquid coolant to drum mounted cutting tools
GB2166469A (en) * 1984-11-02 1986-05-08 Coal Ind Fluid supply systems for rotary cutter heads mountable on mining machines
SE452495B (sv) * 1985-06-13 1987-11-30 Sandvik Ab Anordning for vetsketillforsel till ett verktyg for brytning av fasta material
DE3618779A1 (de) * 1986-06-04 1987-12-10 Bergwerksverband Gmbh Schneidkopf, insbesondere fuer eine teilschnittvortriebsmaschine
DE4002742C2 (de) * 1990-02-05 1994-03-24 Minnovation Ltd Wasserbedüsung für Schräm- oder Schneidkörper im Bergbau
US5178078A (en) * 1991-10-07 1993-01-12 Pendergrass David B Process and apparatus for soil treatment
US5353724A (en) * 1993-06-01 1994-10-11 Wheeley Jr Robert B Roto-tiller attachment
US5769169A (en) * 1996-03-18 1998-06-23 Miksitz; Frank J. Soil irrigation and aeration apparatus
GB9804631D0 (en) * 1998-03-06 1998-04-29 Minnovation Ltd Water seal arrangement
US6764141B2 (en) * 2002-12-19 2004-07-20 Joy Mm Delaware, Inc. Rear mounted bit holder water spray
US6874436B2 (en) * 2003-01-24 2005-04-05 American Soil Technologies, Inc. Fluid distribution assembly
US7097257B2 (en) * 2004-09-15 2006-08-29 Sandvik Intellectual Property Ab Cutting tool with nozzle for spraying water on cutter bit
DE102007014473A1 (de) 2007-03-22 2008-09-25 Dynapac Gmbh Straßenfräse und Verfahren zur Beseitigung der Staubentwicklung einer Straßenfräse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175070A2 (fr) 2008-10-09 2010-04-14 Wirtgen GmbH Fraiseuse de route
EP2175070A3 (fr) * 2008-10-09 2012-01-18 Wirtgen GmbH Fraiseuse de route
CN103669186A (zh) * 2012-09-18 2014-03-26 常州市瑞泰工程机械有限公司 铣刨齿
CN103669186B (zh) * 2012-09-18 2015-12-16 常州市瑞泰工程机械有限公司 铣刨齿

Also Published As

Publication number Publication date
DE102008015431B4 (de) 2020-01-16
DE102008015431A1 (de) 2008-10-09
EP1978157B1 (fr) 2017-02-22
US20080247823A1 (en) 2008-10-09
US8147164B2 (en) 2012-04-03
EP1978157A3 (fr) 2013-05-15

Similar Documents

Publication Publication Date Title
EP1978157B1 (fr) Machine de fraisage
DE3690061C2 (de) Rotationskolbenmaschine
DE2808915C2 (de) Walzenschrämmaschine für den Untertagebergbau
EP3152465B1 (fr) Dispositif d'entraînement
EP0014695B1 (fr) Tête de havage avec buses à eau et procédé de commande de cette tête
DE3427675A1 (de) Walzentrommel fuer eine bodenverdichtungsmaschine
DE1459880B1 (de) Vortriebsschild
DE2032542A1 (de) Aufweitbarer Wickeldorn
EP0161465B1 (fr) Corps rotatif d'une tête de coupe d'une machine à attaque partielle
AT393296B (de) Einrichtung zur zufuehrung von fluid fuer die beduesung von meisseln in einer schraemwalze
DE102007014473A1 (de) Straßenfräse und Verfahren zur Beseitigung der Staubentwicklung einer Straßenfräse
DE3222923C2 (de) Fördereinrichtung für eine Schildvortriebsmaschine
DE2743017B2 (de) Kühlmittelbrause für Umfangsschleifscheiben
DE102024113970A1 (de) Fräseinrichtung mit Berieselungsvorrichtung und Bodenfräsmaschine mit einer solchen Fräseinrichtung
DE2354519A1 (de) Druckmaschine
DE2725872C2 (de) Schrämwalze für eine Gewinnungsmaschine des Bergbaues
DE2852689C2 (de) Walzenschrämmaschine mit einer Belüftungsvorrichtung
EP3455109B1 (fr) Dispositif et procédé pour traiter une surface de véhicule par un fluide
DE3536171A1 (de) Querschneidkopf einer teilschnittmaschine mit innenbeduesung
DE19910293B4 (de) Rohrbeschichtungsanlage mit drehbarer Mediumdurchführung und Spritzpistole
DE3706884C1 (en) Control for the supply of spraying liquid to the cutting-roller spray nozzles on roller-cutting machines and arrangement of the supply of spraying liquid to the spray nozzles of a cutting roller for underground mining
AT392515B (de) Schraemkopf fuer abbau- und vortriebsmaschinen, insbesondere fuer teilschnittmaschinen mit querschneidekopf
DE3803954A1 (de) Beduesungseinrichtung fuer den querschneidekopf einer teilschnittmaschine u. dgl.
DE3529863C1 (de) Verteilvorrichtung zum Ausbringen von Gülle oder dgl. in der Landwirtschaft
DE4013128A1 (de) Verfahren und vorrichtung zum ausfraesen der innenwand eines unterirdisch verlegten kanalrohres

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: E01C 23/088 20060101AFI20130409BHEP

17P Request for examination filed

Effective date: 20131104

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160915

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 869395

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008015031

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170522

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170523

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170622

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170522

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008015031

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171130

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170522

26N No opposition filed

Effective date: 20171123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170424

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171003

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170326

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170326

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170522

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 869395

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170326

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170326

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080326

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170622