EP2374936A2 - Mill cylinder for a floor milling machine and floor milling machine - Google Patents

Mill cylinder for a floor milling machine and floor milling machine Download PDF

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Publication number
EP2374936A2
EP2374936A2 EP11002790A EP11002790A EP2374936A2 EP 2374936 A2 EP2374936 A2 EP 2374936A2 EP 11002790 A EP11002790 A EP 11002790A EP 11002790 A EP11002790 A EP 11002790A EP 2374936 A2 EP2374936 A2 EP 2374936A2
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EP
European Patent Office
Prior art keywords
milling
face
hollow cylindrical
bandage
cylindrical bandage
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
EP11002790A
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German (de)
French (fr)
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EP2374936B1 (en
EP2374936A3 (en
Inventor
Steffen Wachsmann
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Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Publication of EP2374936A3 publication Critical patent/EP2374936A3/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/115—Details of cross-section or profile other
    • B65H2404/1151—Details of cross-section or profile other brush

Definitions

  • the invention relates to a milling drum according to the type specified by the preamble of claim 1.
  • the invention also relates to a ground milling machine with at least one such milling drum.
  • Milling rollers of the type in question are used for crushing and / or removing a soil material, in particular a compacted or solid soil material, such. B. a concrete or tar cover. Often such milling drums are used to remove or partially remove a pavement (or the like). Such milling rollers are z. B. from the DE 698 24 340 T2 and the DE 296 13 658 U known.
  • a disadvantage of the known from the prior art milling rollers of the type in question that they are exposed in milling especially at the front sides of the roller body (also referred to as bandage) a heavy wear. Especially when cornering with a relatively small radius of curvature (eg. Free cutting of manhole covers), there is a strong abrasion on the inside curve end of the bandage by the formed milling edge in the soil material. The abrasion is intensified by an undercut in the soil material (so-called undercut) with respect to the milling edge. Attempts are currently being made to protect the faces of the bandage from excessive wear by attaching wear plates. However, this is only partially satisfactory.
  • a disadvantage of the known from the prior art milling rollers of the type in question is that more milled material adheres in the Fräswalzenkasten.
  • the invention is therefore based on the object, such a further develop a milling drum of the type in question, that the frontal wear is reduced to the bandage.
  • At least one front-side cutting bit is arranged on the hollow-cylindrical bandage in the area of at least one end face and which is intended to at least partially cut free the collision area between this front side and the soil material to be processed in milling operation.
  • at least one such frontal milling cutter is arranged on each end face of the hollow cylindrical bandage.
  • the milling drum according to the invention comprises a hollow cylindrical and axially longitudinally extending roller body, the so-called.
  • Bandage which is defined with respect to its longitudinal axis by a bandage inner radius and by a Bandagenau usradius.
  • On the outer peripheral surface or the lateral surface of the hollow cylindrical bandage a plurality of milling bits for crushing and / or removal of soil material are arranged.
  • At least one face milling cutter is arranged which protrudes from the respective end face or protrudes outwards from this end face and which protects the end face in question against direct abrasive contact with the soil material to be machined in the milling operation in that the contact region or collision area between this end face of the hollow cylindrical bandage and the soil material is quasi cleared or cut free by this at least one frontal milling chisel.
  • the relevant end face of the hollow cylindrical bandage is at least partially protected from abrasion, whereby excessive wear on the relevant end face, as well as any Meiselhaltern and welds on the relevant face, avoided or at least significantly reduced.
  • An essential aspect of the invention is the direct protection of the respective face of the hollow cylindrical bandage by one or more frontal cutting chisel, which is why the Milling roller according to the invention especially for cornering with a relatively small radius of curvature (eg, free cutting of manhole covers) is suitable, despite the given undercut on the milling edge.
  • a relatively small radius of curvature eg, free cutting of manhole covers
  • a plurality of end-face milling tools to be present on at least one end face of the hollow-cylindrical bandage, which are distributed in a circumferential direction and distributed in particular at regular intervals.
  • At least two front-side cutting tools are provided on at least one end face of the hollow cylindrical bandage, with respect to the Longitudinal axis of the hollow cylindrical bandage are arranged at a different radial distance.
  • the longitudinal axis of the hollow cylindrical drum corresponds to the axis of rotation.
  • the bandage thickness is the radial distance between the inner bandage bandage and the bandage outer radius.
  • each case for a plurality of milling bits (ie in each case at least two) of the end-face milling tools, which are arranged at a different radial distance with respect to the longitudinal axis of the hollow cylindrical bandage, these being different milling tools in a radial distance Circumferential direction alternately or alternately distributed and distributed in particular distributed at equal intervals.
  • At least one end face of the hollow cylindrical bandage in at least one end face of the hollow cylindrical bandage in the radial direction (with respect to the longitudinal axis or the axis of rotation of the hollow cylindrical bandage) approximately centrally between the inner bandage bandage and the outer bandage surface or between the inner peripheral surface and the Outer circumferential surface of the hollow cylindrical bandage is arranged.
  • the cutting circle generated by this frontal cutting tool is located approximately in the center of the annular end face of the hollow cylindrical bandage.
  • At least one end face of the hollow cylindrical bandage projects radially outward (with respect to the longitudinal axis or the axis of rotation of the hollow cylindrical bandage) over at least one end face of the hollow cylindrical bandage over the bandage outer radius or over the outer peripheral surface. Due to this radial projection, the relevant end face is even better protected against abrasion.
  • the radial projection is in the range of 5 to 15 mm and is in particular about 10 mm. This information relates to an effective distance caused by the milling tip of the front-side milling cutter.
  • At least one end face of the hollow cylindrical bandage protrudes radially inwards over at least one end face of the hollow cylindrical bandage in the radial direction over the bandage inner radius or over the inner peripheral surface.
  • the radial projection is in the range of 5 to 15 mm and is in particular about 10 mm. This information relates to an effective distance caused by the milling tip of the front-side milling cutter.
  • At least one end face of the hollow cylindrical bandage is arranged with an angle of attack on at least one end face of the hollow cylindrical bandage.
  • the angle can z. B. be defined as the angle of inclination of the Fräsm effetell Kunststoffsachse with respect to a circumferential direction or direction of rotation of the hollow cylindrical drum in the milling operation.
  • At least one end face of the hollow cylindrical bandage is arranged directly in the bandage on the relevant end face on at least one end face of the hollow cylindrical bandage.
  • the hollow cylindrical bandage is designed accordingly in the region of the relevant end face and has z.
  • At least one end face of the hollow cylindrical bandage is designed as an exchangeable cutting bit on at least one end face of the hollow cylindrical bandage.
  • Chisel change holder is arranged on the hollow cylindrical bandage, on which the replaceable frontal cutting chisel is attached.
  • the axial longitudinal extent of the milling drum is greater than the (maximum) diameter of this milling drum.
  • the axial longitudinal extent is greater by a multiple several times.
  • the axial longitudinal extension of the milling drum is smaller than the (maximum) diameter of this milling drum.
  • a milling drum can also be referred to as a milling rotor.
  • the solution of the problem also extends to a ground milling machine with a control station (large milling machine) comprising at least one milling drum according to the invention.
  • a control station large milling machine
  • This is in particular a road milling machine.
  • the solution of the problem also extends to a hand-held ground milling machine (compact milling machine) comprising at least one milling drum according to the invention.
  • a hand-held ground milling machine compact milling machine
  • This is in particular a road milling machine.
  • Fig. 1 shows a generally designated 1 inventive milling drum.
  • To milling drum 1 includes a roller body is formed as a hollow cylindrical bandage 2 and on the outer peripheral surface or lateral surface 22 a plurality of milling bits 3 and 4 are arranged for crushing and / or removal of a soil material.
  • the chisels 3 and 4 are, for example, interchangeable milling chisels, which are fastened to the bandage 2 by means of chisel change holders 31 and 41.
  • the bit changer 31 and 41 are in turn z. B. welded to the bandage 2.
  • the longitudinal axis of the milling drum 1 and the drum 2 is indicated by L.
  • the longitudinal axis L coincides with the axis of rotation.
  • the direction of rotation (or direction of rotation or milling direction) of the milling drum 1 for the milling operation is indicated by D.
  • the milling bits 3 are aligned with their Fräsm effetell Kunststoffsachsen example, essentially in the direction of rotation D.
  • the cutting tools 3 may also be angled with respect to the direction of rotation D.
  • the left end side of the bandage 2 is designated.
  • the angled and projecting beyond the end face 21 Fräsm administratel 4 serve to produce a defined milling edge in the soil material to be processed. However, no protection for the end 21 can be achieved by means of this cutting bit 4.
  • two end milling tools 5a and 5b are arranged in the frontal region.
  • the front-side milling tools 5a and 5b project beyond the left end face 21 by a defined amount x (eg several millimeters) and are intended to at least partially free or clear the collision area between this end face 21 and the soil material to be machined in milling operation in order to avoid a direct contact between the end face 21 and the ground material remaining in the milling process substantially.
  • a radial section T corresponds substantially to the thickness of the bandage 2).
  • the front-side milling tools 5a and 5b can cut free an area which exceeds this radial section T radially inward and / or radially outward.
  • the frontal side milling tools 5a and 5b are also designed as replaceable milling bits, which are fastened to the bandage 2 by means of bit changers 51.
  • the bit change holders 51 are arranged in pockets 6a and 6b, as described below in connection with FIGS Fig. 4 explained in more detail.
  • the frontal side milling tools 5a and 5b are angled with an angle ⁇ with respect to the direction of rotation D and inclined relative to the plane of the left end face 21 to the outside, as very well from the illustration of Fig. 1 seen.
  • the angle of attack ⁇ may be the same or different for both front-side milling bits 5a and 5b.
  • the number of two frontal milling bits 5a and 5b is merely exemplary. For milling drums with a small diameter, a face milling cutter may be sufficient. For large diameter milling drums or thick drum drums, more than two frontal chisels may be required to cut the collision area freely.
  • Fig. 3 shows a plan view of the left end face 21 of the milling drum 1, as shown in the Fig. 1 with A specified direction.
  • the bandage 2 is defined by an inner peripheral surface having a bandage inner radius Ri and an outer circumferential surface 22 having a bandage outer radius Ra.
  • K3 denotes an external milling or cutting circle, which is produced in the milling operation by the milling tool 3 arranged on the outer circumferential surface 22 of the bandage 2.
  • K4 designates a lateral milling or cutting circle, which is produced in the milling operation by the milling bit 4, which is inclined slightly outwards relative to the left end face 21, which should lead to a clean milling edge in the soil material.
  • the end face 21 of the bandage 2 can not be protected against abrasion with the milling tools 4.
  • the frontal milling bits 5a and 5b are provided.
  • the front-side milling tools 5a and 5b offset by about 180 ° in the frontal region of the bandage 2 are arranged.
  • K5b designates the milling or cutting circle of the front-side milling bit 5b, which lies radially outside the outer circumferential surface 22 of the bandage 2 by a few millimeters.
  • K5a designates the milling or cutting circle of the other front-side milling tool 5a, which is located approximately in the middle between the inner peripheral surface and the outer peripheral surface 22 of the drum 2.
  • the front-side milling tool 5a or another front-side milling tool could also be arranged so that the milling or cutting circle Kx resulting in the milling operation radially inside the inner peripheral surface the bandage 2 is located.
  • the milling tips and thus the points of action of the frontal side chisel 5a and 5b are thus at different radial distances from the longitudinal axis or axis of rotation L.
  • the respective left end face 21 of the drum 2 is protected from abrasion in the milling operation, creating a Excessive wear on this end face and any Meiselhaltern or chisel change holders 31 and 41 and welds in the region of this end face 21 is avoided or at least greatly reduced.
  • corresponding end milling tools are also provided on the other end face of the milling drum 1.
  • the Fräsm accommodateel 3 and 4 are inclined with respect to a radial direction r, wherein the laterally outwardly inclined Fräsm composedel 4 are more inclined than the Fräsm facedel 3 and wherein the milling tips in each case in the direction of rotation U and in the circumferential direction have u.
  • the front-side cutting tools 5a and 5b are substantially inclined with respect to the radial direction r and in the illustration shown have a tangential orientation with respect to the bandage 2, the milling tips pointing in the circumferential direction u.

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  • 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)
  • Shovels (AREA)

Abstract

The rotary grinder (1) has a hollow cylindrical binding band (2), where multiple milling chisels (3,5a) are arranged on the outer circumferential surface of the binding band. A frontal milling chisel is arranged on the binding band in the area of front side. The milling chisel is provided for cutting the collision area between the front side and the ground material to be machined. An independent claim is also included for a ground milling machine with an operator stand.

Description

Die Erfindung betrifft eine Fräswalze gemäß der durch den Oberbegriff des Anspruchs 1 angegebenen Art. Die Erfindung betrifft ferner auch eine Bodenfräsmaschine mit wenigstens einer solchen Fräswalze.The invention relates to a milling drum according to the type specified by the preamble of claim 1. The invention also relates to a ground milling machine with at least one such milling drum.

Fräswalzen der betreffenden Art dienen zum Zerkleinern und/oder Abtragen eines Bodenmaterials, insbesondere eines verdichteten oder festen Bodenmaterials, wie z. B. einer Beton- oder Teerdecke. Häufig werden solche Fräswalzen zur Entfernung oder teilweisen Entfernung eines Straßenbelags (oder dergleichen) eingesetzt. Solche Fräswalzen sind z. B. aus der DE 698 24 340 T2 und der DE 296 13 658 U bekannt.Milling rollers of the type in question are used for crushing and / or removing a soil material, in particular a compacted or solid soil material, such. B. a concrete or tar cover. Often such milling drums are used to remove or partially remove a pavement (or the like). Such milling rollers are z. B. from the DE 698 24 340 T2 and the DE 296 13 658 U known.

Nachteilig an den aus dem Stand der Technik bekannten Fräswalzen der betreffenden Art ist, dass diese im Fräsbetrieb vor allem an den Stirnseiten des Walzengrundkörpers (auch als Bandage bezeichnet) einem starken Verschleiß ausgesetzt sind. Vor allem bei Kurvenfahrten mit verhältnismäßig kleinem Kurvenradius (bspw. Freifräsen von Kanaldeckeln) kommt es zu einer starken Abrasion an der kurveninneren Stirnseite der Bandage durch die gebildete Fräskante im Bodenmaterial. Die Abrasion wird durch eine sich im Bodenmaterial einstellende Unterschneidung (sog. Hinterschnitt) bezüglich der Fräskante verstärkt. Gegenwärtig wird versucht, die Stirnseiten der Bandage durch das Anbringen von Verschleißblechen vor einem übermäßigen Verschleiß zu schützen. Dies ist jedoch nur bedingt zufriedenstellend. Nachteilig an den aus dem Stand der Technik bekannten Fräswalzen der betreffenden Art ist ferner, dass mehr Fräsgut im Fräswalzenkasten anhaftet.A disadvantage of the known from the prior art milling rollers of the type in question that they are exposed in milling especially at the front sides of the roller body (also referred to as bandage) a heavy wear. Especially when cornering with a relatively small radius of curvature (eg. Free cutting of manhole covers), there is a strong abrasion on the inside curve end of the bandage by the formed milling edge in the soil material. The abrasion is intensified by an undercut in the soil material (so-called undercut) with respect to the milling edge. Attempts are currently being made to protect the faces of the bandage from excessive wear by attaching wear plates. However, this is only partially satisfactory. A disadvantage of the known from the prior art milling rollers of the type in question is that more milled material adheres in the Fräswalzenkasten.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Fräswalze der betreffenden Art derart weiter zu entwickeln, dass der stirnseitige Verschleiß an der Bandage verringert wird.The invention is therefore based on the object, such a further develop a milling drum of the type in question, that the frontal wear is reduced to the bandage.

Diese Aufgabe wird bei einer Fräswalze der betreffenden Art erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Hiernach ist vorgesehen, dass an der hohlzylindrischen Bandage im Bereich wenigstens einer Stirnseite wenigstens ein stirnseitiger Fräsmeißel angeordnet ist, der bezüglich dieser Stirnseite übersteht und der dazu vorgesehen ist, im Fräsbetrieb den Kollisionsbereich zwischen dieser Stirnseite und dem zu bearbeitenden Bodenmaterial zumindest teilweise frei zu schneiden. Bevorzugt ist an jeder Stirnseite der hohlzylindrischen Bandage wenigstens ein solcher stirnseitiger Fräsmeißel angeordnet.This object is achieved according to the invention in a milling drum of the type in question by the characterizing features of claim 1. Accordingly, it is provided that at least one front-side cutting bit is arranged on the hollow-cylindrical bandage in the area of at least one end face and which is intended to at least partially cut free the collision area between this front side and the soil material to be processed in milling operation. Preferably, at least one such frontal milling cutter is arranged on each end face of the hollow cylindrical bandage.

Die erfindungsgemäße Fräswalze umfasst einen hohlzylindrischen und sich axial längserstreckenden Walzengrundkörper, die sog. Bandage, die bezüglich ihrer Längsachse durch einen Bandageninnenradius und durch einen Bandagenaußenradius definiert ist. An der Außenumfangsfläche bzw. der Mantelfläche der hohlzylindrischen Bandage sind mehrere Fräsmeißel zum Zerkleinern und/oder Abtragen von Bodenmaterial angeordnet. Ferner ist erfindungsgemäß im Bereich wenigstens einer kreisringförmigen Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel angeordnet, der von der betreffenden Stirnseite abragt bzw. von dieser Stirnseite nach außen übersteht und der im Fräsbetrieb die betreffende Stirnseite vor einem direkten abrasiven Kontakt mit dem zu bearbeitenden Bodenmaterial schützt, indem der Kontaktbereich bzw. Kollisionsbereich zwischen dieser Stirnseite der hohlzylindrischen Bandage und dem Bodenmaterial durch diesen wenigstens einen stirnseitigen Fräsmeißel quasi freigeräumt bzw. freigeschnitten wird. Hierdurch wird je nach Anordnung und Ausbildung eines solchen stirnseitigen Fräsmeißels die betreffende Stirnseite der hohlzylindrischen Bandage zumindest teilweise vor Abrasion geschützt, wodurch ein übermäßiger Verschleiß an der betreffenden Stirnseite, sowie an etwaigen Meiselhaltern und Schweißnähten an der betreffenden Stirnseite, vermieden oder zumindest deutlich verringert wird.The milling drum according to the invention comprises a hollow cylindrical and axially longitudinally extending roller body, the so-called. Bandage, which is defined with respect to its longitudinal axis by a bandage inner radius and by a Bandagenaußenradius. On the outer peripheral surface or the lateral surface of the hollow cylindrical bandage a plurality of milling bits for crushing and / or removal of soil material are arranged. Furthermore, according to the invention, in the area of at least one annular end face of the hollow cylindrical bandage, at least one face milling cutter is arranged which protrudes from the respective end face or protrudes outwards from this end face and which protects the end face in question against direct abrasive contact with the soil material to be machined in the milling operation in that the contact region or collision area between this end face of the hollow cylindrical bandage and the soil material is quasi cleared or cut free by this at least one frontal milling chisel. As a result, depending on the arrangement and design of such an end milling cutter the relevant end face of the hollow cylindrical bandage is at least partially protected from abrasion, whereby excessive wear on the relevant end face, as well as any Meiselhaltern and welds on the relevant face, avoided or at least significantly reduced.

Ein wesentlicher Aspekt der Erfindung ist der direkte Schutz der betreffenden Stirnseite der hohlzylindrischen Bandage durch einen oder mehrere stirnseitige Fräsmeißel, weshalb sich die erfindungsgemäße Fräsewalze insbesondere auch für Kurvenfahrten mit verhältnismäßig kleinem Kurvenradius (bspw. Freifräsen von Kanaldeckeln) eignet, trotz der gegebenen Hinterschneidung an der Fräskante.An essential aspect of the invention is the direct protection of the respective face of the hollow cylindrical bandage by one or more frontal cutting chisel, which is why the Milling roller according to the invention especially for cornering with a relatively small radius of curvature (eg, free cutting of manhole covers) is suitable, despite the given undercut on the milling edge.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage mehrere stirnseitige Fräsmeißel vorhanden sind, die in einer Umfangsrichtung verteilt und insbesondere in gleichmäßigen Abständen verteilt angeordnet sind.According to a preferred development, provision is made for a plurality of end-face milling tools to be present on at least one end face of the hollow-cylindrical bandage, which are distributed in a circumferential direction and distributed in particular at regular intervals.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens zwei stirnseitige Fräsmeißel vorgesehen sind, die bezüglich der Längsachse der hohlzylindrischen Bandage in einem unterschiedlichen radialen Abstand angeordnet sind. Die Längsachse der hohlzylindrischen Bandage entspricht der Rotationsachse. Mit dem radialen Abstand ist der Wirkabstand eines stirnseitigen Fräsmeißels, d. h. der Abstand der Frässpitze bzw. des Wirkpunkts des Fräsmeißels von der Längsachse bzw. der Rotationsachse gemeint, der mit einem bestimmten Schnittkreis einhergeht. Durch einen unterschiedlichen radialen Abstand der stirnseitigen Fräsmeißel bewegen sich diese im Fräsbetrieb auf verschiedenen Umfangsbahnen, wodurch unterschiedliche Schnittkreise erzeugt werden. Dies kann insbesondere bei dickeren hohlzylindrischen Bandagen von Vorteil sein. Die Bandagendicke ist der radiale Abstand zwischen dem Bandageninnenradius und dem Bandagenaußenradius.According to a preferred embodiment, it is provided that at least two front-side cutting tools are provided on at least one end face of the hollow cylindrical bandage, with respect to the Longitudinal axis of the hollow cylindrical bandage are arranged at a different radial distance. The longitudinal axis of the hollow cylindrical drum corresponds to the axis of rotation. With the radial distance of the effective distance of an end-face milling chisel, ie the distance of the milling tip or the point of action of the milling chisel of the longitudinal axis or the axis of rotation is meant, which is associated with a particular cutting circle. By a different radial distance of the frontal cutting chisel these move in milling on different circumferential paths, creating different cutting circles are generated. This may be particularly advantageous for thicker hollow cylindrical bandages. The bandage thickness is the radial distance between the inner bandage bandage and the bandage outer radius.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass von den stirnseitigen Fräsmeißeln, die bezüglich der Längsachse der hohlzylindrischen Bandage in einem unterschiedlichen radialen Abstand angeordnet sind, jeweils mehrere Fräsmeißel (d. h. jeweils mindestens zwei) vorgesehen sind, wobei diese bezüglich ihres radialen Abstands unterschiedlichen Fräsmeißel in einer Umfangsrichtung wechselweise bzw. abwechselnd verteilt und insbesondere in gleichmäßigen Abständen verteilt angeordnet sind.According to a preferred embodiment, provision is made in each case for a plurality of milling bits (ie in each case at least two) of the end-face milling tools, which are arranged at a different radial distance with respect to the longitudinal axis of the hollow cylindrical bandage, these being different milling tools in a radial distance Circumferential direction alternately or alternately distributed and distributed in particular distributed at equal intervals.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel in radialer Richtung (bezüglich der Längsachse bzw. der Rotationsachse der hohlzylindrischen Bandage) in etwa mittig zwischen dem Bandageninnenradius und dem Bandagenaußenradius bzw. zwischen der Innenumfangsfläche und der Außenumfangsfläche der hohlzylindrischen Bandage angeordnet ist. Der von diesem stirnseitigen Fräsmeißel erzeugte Schnittkreis liegt in etwa mittig der kreisringförmigen Stirnseite der hohlzylindrischen Bandage.According to a preferred embodiment, it is provided that at least one end face of the hollow cylindrical bandage in at least one end face of the hollow cylindrical bandage in the radial direction (with respect to the longitudinal axis or the axis of rotation of the hollow cylindrical bandage) approximately centrally between the inner bandage bandage and the outer bandage surface or between the inner peripheral surface and the Outer circumferential surface of the hollow cylindrical bandage is arranged. The cutting circle generated by this frontal cutting tool is located approximately in the center of the annular end face of the hollow cylindrical bandage.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel in radialer Richtung (bezüglich der Längsachse bzw. der Rotationsachse der hohlzylindrischen Bandage) über den Bandagenaußenradius bzw. über die Außenumfangsfläche nach radial außen übersteht. Durch diesen radialen Überstand ist die betreffende Stirnseite noch besser gegen Abrasion geschützt. Der radiale Überstand liegt im Bereich von 5 bis 15 mm und beträgt insbesondere in etwa 10 mm. Diese Angaben betreffen einen durch die Frässpitze des stirnseitigen Fräsmeißels bewirkten Wirkabstand.According to a preferred refinement, it is provided that at least one end face of the hollow cylindrical bandage projects radially outward (with respect to the longitudinal axis or the axis of rotation of the hollow cylindrical bandage) over at least one end face of the hollow cylindrical bandage over the bandage outer radius or over the outer peripheral surface. Due to this radial projection, the relevant end face is even better protected against abrasion. The radial projection is in the range of 5 to 15 mm and is in particular about 10 mm. This information relates to an effective distance caused by the milling tip of the front-side milling cutter.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel in radialer Richtung über den Bandageninnenradius bzw. über die Innenumfangsfläche nach radial innen übersteht. Durch diesen radialen Überstand ist die betreffende Stirnseite noch besser gegen Abrasion geschützt. Der radiale Überstand liegt im Bereich von 5 bis 15 mm und beträgt insbesondere in etwa 10 mm. Diese Angaben betreffen einen durch die Frässpitze des stirnseitigen Fräsmeißels bewirkten Wirkabstand.According to a preferred development, it is provided that at least one end face of the hollow cylindrical bandage protrudes radially inwards over at least one end face of the hollow cylindrical bandage in the radial direction over the bandage inner radius or over the inner peripheral surface. Through this radial Overhang, the end face in question is even better protected against abrasion. The radial projection is in the range of 5 to 15 mm and is in particular about 10 mm. This information relates to an effective distance caused by the milling tip of the front-side milling cutter.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel mit einem Anstellwinkel angeordnet ist. Der Anstellwinkel kann z. B. als Neigungswinkel der Fräsmeißellängsachse bezüglich einer Umfangsrichtung bzw. Umdrehungsrichtung der hohlzylindrischen Bandage im Fräsbetrieb definiert werden.According to a preferred development it is provided that at least one end face of the hollow cylindrical bandage is arranged with an angle of attack on at least one end face of the hollow cylindrical bandage. The angle can z. B. be defined as the angle of inclination of the Fräsmeißellängsachse with respect to a circumferential direction or direction of rotation of the hollow cylindrical drum in the milling operation.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel direkt in der Bandage an der betreffenden Stirnseite angeordnet ist. Hierzu ist die hohlzylindrische Bandage im Bereich der betreffenden Stirnseite entsprechend ausgebildet und weist z. B. eine Tasche oder dergleichen auf, wie nachfolgend im Zusammenhang mit den Figuren noch näher erläutert.According to a preferred development, it is provided that at least one end face of the hollow cylindrical bandage is arranged directly in the bandage on the relevant end face on at least one end face of the hollow cylindrical bandage. For this purpose, the hollow cylindrical bandage is designed accordingly in the region of the relevant end face and has z. As a bag or the like, as explained in more detail below in connection with the figures.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass an wenigstens einer Stirnseite der hohlzylindrischen Bandage wenigstens ein stirnseitiger Fräsmeißel als auswechselbarer Fräsmeißel ausgebildet ist. Insbesondere ist hierzu an der hohlzylindrischen Bandage ein sog. Meißelwechselhalter angeordnet, an dem der auswechselbare stirnseitige Fräsmeißel befestigt wird.According to a preferred development it is provided that at least one end face of the hollow cylindrical bandage is designed as an exchangeable cutting bit on at least one end face of the hollow cylindrical bandage. In particular, for this purpose, a so-called. Chisel change holder is arranged on the hollow cylindrical bandage, on which the replaceable frontal cutting chisel is attached.

Nach einer bevorzugten Weiterbildung ist vorgesehen, dass die axiale Längserstreckung der Fräswalze größer als der (maximale) Durchmesser dieser Fräswalze ist. Bevorzugt ist die axiale Längserstreckung um ein mehrzahliges Vielfaches größer.According to a preferred development, it is provided that the axial longitudinal extent of the milling drum is greater than the (maximum) diameter of this milling drum. Preferably, the axial longitudinal extent is greater by a multiple several times.

Nach einer anderen bevorzugten Weiterbildung ist vorgesehen, dass die axiale Längserstreckung der Fräswalze kleiner als der (maximale) Durchmesser dieser Fräswalze ist. Eine solche Fräswalze kann auch als Fräsrotor bezeichnet werden.According to another preferred development, it is provided that the axial longitudinal extension of the milling drum is smaller than the (maximum) diameter of this milling drum. Such a milling drum can also be referred to as a milling rotor.

Die Lösung der Aufgabe erstreckt sich auch auf eine Bodenfräsmaschine mit einem Fahrstand (Großfräse), umfassend wenigstens eine erfindungsgemäße Fräswalze. Hierbei handelt es sich insbesondere um eine Straßenfräsmaschine.The solution of the problem also extends to a ground milling machine with a control station (large milling machine) comprising at least one milling drum according to the invention. This is in particular a road milling machine.

Die Lösung der Aufgabe erstreckt sich ferner auch auf eine handgeführte Bodenfräsmaschine (Kompaktfräse), umfassend wenigstens eine erfindungsgemäße Fräswalze. Hierbei handelt es sich insbesondere um eine Straßenfräsmaschine.The solution of the problem also extends to a hand-held ground milling machine (compact milling machine) comprising at least one milling drum according to the invention. This is in particular a road milling machine.

Nachfolgend wird die Erfindung beispielhaft anhand der Figuren näher beschrieben. Es zeigen:

Fig. 1
den Stirnseitenbereich einer erfindungsgemäßen Fräswalze in einer Seitenansicht;
Fig. 2
eine perspektivische Teilansicht der linken Stirnseite der Fräswalze aus der Fig. 1, gemäß der in der Fig. 1 angegebenen Blickrichtung (A);
Fig. 3
eine Draufsicht auf die linke Stirnseite der Fräswalze aus der Fig. 1, gemäß der in der Fig. 1 angegebenen Blickrichtung (A); und
Fig. 4
eine perspektivische Ansicht auf die linke Stirnseite der Fräswalze aus der Fig. 1.
The invention will be described in more detail by way of example with reference to the figures. Show it:
Fig. 1
the front side region of a milling drum according to the invention in a side view;
Fig. 2
a partial perspective view of the left end of the milling drum from the Fig. 1 , according to the in the Fig. 1 indicated viewing direction (A);
Fig. 3
a plan view of the left end face of the milling drum from the Fig. 1 , according to the in the Fig. 1 indicated viewing direction (A); and
Fig. 4
a perspective view of the left end of the milling drum from the Fig. 1 ,

Fig. 1 zeigt eine insgesamt mit 1 bezeichnete erfindungsgemäße Fräswalze. Zur Fräswalze 1 gehört ein Walzengrundkörper der als hohlzylindrische Bandage 2 ausgebildet ist und an dessen Außenumfangsfläche bzw. Mantelfläche 22 mehrere Fräsmeißel 3 und 4 zum Zerkleinern und/oder Abtragen eines Bodenmaterials angeordnet sind. Bei den Fräsmeißeln 3 und 4 handelt es sich beispielhaft um auswechselbare Fräsmeißel, die mittels von Meißelwechselhaltern 31 und 41 an der Bandage 2 befestigt sind. Die Meißelwechselhalter 31 und 41 sind ihrerseits z. B. an der Bandage 2 festgeschweißt. Die Längsachse der Fräswalze 1 und der Bandage 2 ist mit L angegeben. Die Längsachse L fällt mit der Rotationsachse zusammen. Die Rotationsrichtung (bzw. Umdrehungsrichtung oder Fräsrichtung) der Fräswalze 1 für den Fräsbetrieb ist mit D angegeben. Die Fräsmeißel 3 sind mit ihren Fräsmeißellängsachsen beispielhaft im Wesentlichen in der Umdrehungsrichtung D ausgerichtet. Alternativ können die Fräsmeißel 3 auch bezüglich der Umdrehungsrichtung D angewinkelt sein. Mit 21 ist die linke Stirnseite der Bandage 2 bezeichnet. Die angewinkelten und über die Stirnseite 21 hinausragenden Fräsmeißel 4 dienen zur Erzeugung einer definierten Fräskante im zu bearbeitenden Bodenmaterial. Mittels dieser Fräsmeißel 4 kann jedoch kein Schutz für die Stirnseite 21 erzielt werden. Fig. 1 shows a generally designated 1 inventive milling drum. To milling drum 1 includes a roller body is formed as a hollow cylindrical bandage 2 and on the outer peripheral surface or lateral surface 22 a plurality of milling bits 3 and 4 are arranged for crushing and / or removal of a soil material. The chisels 3 and 4 are, for example, interchangeable milling chisels, which are fastened to the bandage 2 by means of chisel change holders 31 and 41. The bit changer 31 and 41 are in turn z. B. welded to the bandage 2. The longitudinal axis of the milling drum 1 and the drum 2 is indicated by L. The longitudinal axis L coincides with the axis of rotation. The direction of rotation (or direction of rotation or milling direction) of the milling drum 1 for the milling operation is indicated by D. The milling bits 3 are aligned with their Fräsmeißellängsachsen example, essentially in the direction of rotation D. Alternatively, the cutting tools 3 may also be angled with respect to the direction of rotation D. At 21, the left end side of the bandage 2 is designated. The angled and projecting beyond the end face 21 Fräsmeißel 4 serve to produce a defined milling edge in the soil material to be processed. However, no protection for the end 21 can be achieved by means of this cutting bit 4.

Zum Schutz der Stirnseite 21 der Bandage 2 im Fräsbetrieb sind im stirnseitigen Bereich zwei stirnseitige Fräsmeißel 5a und 5b angeordnet. In der in Fig. 1 gezeigten Darstellung ist nur der stirnseitige Fräsmeißel 5a sichtbar. Die stirnseitigen Fräsmeißel 5a und 5b überragen die linke Stirnseite 21 um einen definierten Betrag x (bspw. mehrere Millimeter) und sind dazu vorgesehen, im Fräsbetrieb den Kollisionsbereich zwischen dieser Stirnseite 21 und dem zu bearbeitenden Bodenmaterial zumindest teilweise frei zu schneiden bzw. frei zu räumen, um einen direkten Kontakt zwischen der Stirnseite 21 und dem bei der Fräsbearbeitung stehen bleibenden Bodenmaterial im Wesentlichen zu vermeiden. In der Fig. 2 ist der relevante Kollisionsbereich an der Stirnseite 21 als Radialabschnitt T (entspricht im Wesentlichen der Dicke der Bandage 2) angegeben. Die stirnseitigen Fräsmeißel 5a und 5b können je nach Ausführung einen Bereich freischneiden, der diesen Radialabschnitt T nach radial innen und/oder nach radial außen überschreitet.To protect the end face 21 of the bandage 2 in the milling operation, two end milling tools 5a and 5b are arranged in the frontal region. In the in Fig. 1 shown illustration, only the frontal cutting bit 5a is visible. The front-side milling tools 5a and 5b project beyond the left end face 21 by a defined amount x (eg several millimeters) and are intended to at least partially free or clear the collision area between this end face 21 and the soil material to be machined in milling operation in order to avoid a direct contact between the end face 21 and the ground material remaining in the milling process substantially. In the Fig. 2 is the relevant collision area on the end face 21 as a radial section T (corresponds substantially to the thickness of the bandage 2). Depending on the design, the front-side milling tools 5a and 5b can cut free an area which exceeds this radial section T radially inward and / or radially outward.

Die stirnseitigen Fräsmeißel 5a und 5b sind ebenfalls als auswechselbare Fräsmeißel ausgeführt, die mittels von Meißelwechselhaltern 51 an der Bandage 2 befestigt sind. Die Meißelwechselhalter 51 sind in Taschen 6a und 6b angeordnet, wie nachfolgend im Zusammenhang mit der Fig. 4 noch näher erläutert. Die stirnseitigen Fräsmeißel 5a und 5b sind mit einem Anstellwinkel ß gegenüber der Umdrehungsrichtung D angewinkelt bzw. gegenüber der Ebene der linken Stirnseite 21 nach außen geneigt, wie sehr gut aus der Darstellung der Fig. 1 ersichtlich. Der Anstellwinkel ß kann für beide stirnseitige Fräsmeißel 5a und 5b gleich oder unterschiedlich sein. Die Anzahl von zwei stirnseitigen Fräsmeißeln 5a und 5b ist lediglich beispielhaft. Bei Fräswalzen mit kleinem Durchmesser kann ggf. ein stirnseitiger Fräsmeißel ausreichend sein. Bei Fräswalzen mit großem Durchmesser oder bei Fräswalzen mit dicken Bandagen können ggf. mehr als zwei stirnseitige Fräsmeißel erforderlich sein, um den Kollisionsbereich frei zu schneiden.The frontal side milling tools 5a and 5b are also designed as replaceable milling bits, which are fastened to the bandage 2 by means of bit changers 51. The bit change holders 51 are arranged in pockets 6a and 6b, as described below in connection with FIGS Fig. 4 explained in more detail. The frontal side milling tools 5a and 5b are angled with an angle β with respect to the direction of rotation D and inclined relative to the plane of the left end face 21 to the outside, as very well from the illustration of Fig. 1 seen. The angle of attack β may be the same or different for both front-side milling bits 5a and 5b. The number of two frontal milling bits 5a and 5b is merely exemplary. For milling drums with a small diameter, a face milling cutter may be sufficient. For large diameter milling drums or thick drum drums, more than two frontal chisels may be required to cut the collision area freely.

Fig. 3 zeigt eine Draufsicht auf die linke Stirnseite 21 der Fräswalze 1, gemäß der in der Fig. 1 mit A angegebenen Blickrichtung. In dieser Darstellung ist sehr gut der kreisringförmige Querschnitt der Bandage 2 zu erkennen. Die Bandage 2 ist durch eine Innenumfangsfläche mit einem Bandageninnenradius Ri und eine Außenumfangsfläche 22 mit einem Bandagenaußenradius Ra definiert. Ferner ist (wenigstens) eine Triebscheibe 7 vorhanden, welche die Verbindung der Bandage 2 mit einem Rotationsantrieb und/oder mit einer Aufhängung bewerkstelligt. Fig. 3 shows a plan view of the left end face 21 of the milling drum 1, as shown in the Fig. 1 with A specified direction. In this illustration, the circular cross-section of the bandage 2 can be seen very well. The bandage 2 is defined by an inner peripheral surface having a bandage inner radius Ri and an outer circumferential surface 22 having a bandage outer radius Ra. Furthermore, there is (at least) one drive disk 7, which accomplishes the connection of the drum 2 with a rotary drive and / or with a suspension.

In Fig. 3 ist mit K3 ein äußerer Fräs- bzw. Schnittkreis bezeichnet, der im Fräsbetrieb durch die an der Außenumfangsfläche 22 der Bandage 2 angeordneten Fräsmeißel 3 erzeugt wird. Mit K4 ist ein seitlicher Fräs- bzw. Schnittkreis bezeichnet, der im Fräsbetrieb durch die bezüglich der linken Stirnseite 21 leicht nach außen geneigten Fräsmeißel 4 erzeugt wird, was zu einer sauberen Fräskante im Bodenmaterial führen soll.In Fig. 3 K3 denotes an external milling or cutting circle, which is produced in the milling operation by the milling tool 3 arranged on the outer circumferential surface 22 of the bandage 2. K4 designates a lateral milling or cutting circle, which is produced in the milling operation by the milling bit 4, which is inclined slightly outwards relative to the left end face 21, which should lead to a clean milling edge in the soil material.

Mit den Fräsmeißeln 4 kann die Stirnseite 21 der Bandage 2 jedoch nicht vor Abrasion geschützt werden. Hierzu sind die stirnseitigen Fräsmeißel 5a und 5b vorgesehen. Wie aus der Darstellung der Fig. 3 ersichtlich, sind die stirnseitigen Fräsmeißel 5a und 5b um etwa 180° versetzt im stirnseitigen Bereich der Bandage 2 angeordnet.However, the end face 21 of the bandage 2 can not be protected against abrasion with the milling tools 4. For this purpose, the frontal milling bits 5a and 5b are provided. As from the representation of Fig. 3 can be seen, the front-side milling tools 5a and 5b offset by about 180 ° in the frontal region of the bandage 2 are arranged.

Mit K5b ist der Fräs- bzw. Schnittkreis des stirnseitigen Fräsmeißels 5b bezeichnet, der um wenige Millimeter radial außerhalb der Außenumfangsfläche 22 der Bandage 2 liegt. Mit K5a ist der Fräs- bzw. Schnittkreis des anderen stirnseitigen Fräsmeißels 5a bezeichnet, der sich in etwa mittig zwischen der Innenumfangsfläche und der Außenumfangsfläche 22 der Bandage 2 befindet. In gleicher Weise könnte der stirnseitige Fräsmeißel 5a oder ein weiterer stirnseitiger Fräsmeißel auch so angeordnet sein, dass sich der im Fräsbetrieb ergebende Fräs- bzw. Schnittkreis Kx radial innerhalb der Innenumfangsfläche der Bandage 2 befindet. Die Frässpitzen und damit die Wirkpunkte der stirnseitigen Fräsmeißel 5a und 5b befinden sich somit in unterschiedlichen radialen Abständen zur Längsachse bzw. Rotationsachse L. Durch die stirnseitigen Fräsmeißel 5a und 5b ist die betreffende linke Stirnseite 21 der Bandage 2 vor Abrasion im Fräsbetrieb geschützt, wodurch ein übermäßiger Verschleiß an dieser Stirnseite und an etwaigen Meiselhaltern bzw. Meißelwechselhaltern 31 und 41 sowie Schweißnähten im Bereich dieser Stirnseite 21 vermieden oder zumindest stark vermindert wird. Bevorzugt sind entsprechende stirnseitige Fräsmeißel auch an der anderen Stirnseite der Fräswalze 1 vorgesehen.K5b designates the milling or cutting circle of the front-side milling bit 5b, which lies radially outside the outer circumferential surface 22 of the bandage 2 by a few millimeters. K5a designates the milling or cutting circle of the other front-side milling tool 5a, which is located approximately in the middle between the inner peripheral surface and the outer peripheral surface 22 of the drum 2. In the same way, the front-side milling tool 5a or another front-side milling tool could also be arranged so that the milling or cutting circle Kx resulting in the milling operation radially inside the inner peripheral surface the bandage 2 is located. The milling tips and thus the points of action of the frontal side chisel 5a and 5b are thus at different radial distances from the longitudinal axis or axis of rotation L. By the front side chisel 5a and 5b, the respective left end face 21 of the drum 2 is protected from abrasion in the milling operation, creating a Excessive wear on this end face and any Meiselhaltern or chisel change holders 31 and 41 and welds in the region of this end face 21 is avoided or at least greatly reduced. Preferably, corresponding end milling tools are also provided on the other end face of the milling drum 1.

Wie ferner sehr gut aus der Fig. 3 ersichtlich ist, sind die Fräsmeißel 3 und 4 bezüglich einer radialen Richtung r geneigt, wobei die seitlich nach außen geneigten Fräsmeißel 4 stärker als die Fräsmeißel 3 geneigt sind und wobei die Frässpitzen jeweils in die Umdrehungsrichtung U bzw. in die Umfangsrichtung u weisen. Die stirnseitigen Fräsmeißel 5a und 5b sind im Wesentlichen gegenüber der radialen Richtung r maximal geneigt und weisen in der gezeigten Darstellung bezüglich der Bandage 2 in etwa eine tangentiale Orientierung auf, wobei die Frässpitzen in Umfangsrichtung u weisen.As also very good from the Fig. 3 It can be seen, the Fräsmeißel 3 and 4 are inclined with respect to a radial direction r, wherein the laterally outwardly inclined Fräsmeißel 4 are more inclined than the Fräsmeißel 3 and wherein the milling tips in each case in the direction of rotation U and in the circumferential direction have u. The front-side cutting tools 5a and 5b are substantially inclined with respect to the radial direction r and in the illustration shown have a tangential orientation with respect to the bandage 2, the milling tips pointing in the circumferential direction u.

In der in Fig. 4 gezeigten Darstellung ist sehr gut zu erkennen, dass der stirnseitige Fräsmeißel 5a zusammen mit seinem zugehörigen Meißelwechselhalter 51 direkt in der Bandage 2 angeordnet ist. In die Bandage 2 ist hierzu eine korrespondierende Tasche bzw. Ausnehmung 6a eingearbeitet, in welche der Meißelwechselhalter 51 z. B. eingeschweißt ist. Gleiches gilt für den zweiten stirnseitigen Fräsmeißel 5b, wobei hier die Tasche 6b nicht die gesamte Dicke der Bandage 2 durchdringt.In the in Fig. 4 As shown, it is very easy to see that the front-side milling tool 5a is arranged directly in the bandage 2 together with its associated tool change holder 51. In the bandage 2 a corresponding pocket or recess 6a is incorporated for this purpose, in which the bit changer 51 z. B. is welded. The same applies to the second end milling cutter 5b, in which case the pocket 6b does not penetrate the entire thickness of the bandage 2.

Claims (13)

Fräswalze (1) für eine Bodenfräsmaschine zum Zerkleinern und/oder Abtragen eines Bodenmaterials, mit einer hohlzylindrischen, sich axial längserstreckenden Bandage (2), an deren Außenumfangsfläche (22) mehrere Fräsmeißel (3, 4) zum Zerkleinern und/oder Abtragen des Bodenmaterials angeordnet sind,
dadurch gekennzeichnet,
dass an der hohlzylindrischen Bandage (2) im Bereich wenigstens einer Stirnseite (21) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) angeordnet ist, der bezüglich dieser Stirnseite (21) übersteht (x) und der dazu vorgesehen ist, im Fräsbetrieb den Kollisionsbereich (T) zwischen dieser Stirnseite (21) und dem zu bearbeitenden Bodenmaterial zumindest teilweise frei zu schneiden.Milling roller (1) for a ground milling machine for crushing and / or removing a soil material, with a hollow cylindrical, axially elongate bandage (2), on the outer peripheral surface (22) a plurality of milling bits (3, 4) arranged for crushing and / or removing the soil material are,
characterized,
in that at least one face-side cutting bit (5a; 5b) is arranged on the hollow-cylindrical bandage (2) in the area of at least one end face (21) which protrudes (x) with respect to this end face (x) and which is intended to provide the collision area during milling operation ( T) between this end face (21) and the soil material to be machined at least partially cut free. Fräswalze (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) mehrere stirnseitige Fräsmeißel (5a, 5b) vorhanden sind, die in einer Umfangsrichtung (u) verteilt und insbesondere in gleichmäßigen Abständen verteilt angeordnet sind.Milling roll (1) according to claim 1,
characterized,
in that on at least one end face (21) of the hollow cylindrical bandage (2) a plurality of end milling tools (5a, 5b) are present which are distributed in a circumferential direction (u) and in particular distributed at regular intervals. Fräswalze (1) nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens zwei stirnseitige Fräsmeißel (5a, 5b) vorgesehen sind, die bezüglich der Längsachse (L) der hohlzylindrischen Bandage (2) in einem unterschiedlichen radialen Abstand angeordnet sind.Milling roll (1) according to claim 1 or 2,
characterized,
in that at least one end face (21) of the hollow cylindrical bandage (2) is provided with at least two end milling tools (5a, 5b) which are arranged at a different radial distance with respect to the longitudinal axis (L) of the hollow cylindrical bandage (2). Fräswalze (1) nach Anspruch 3,
dadurch gekennzeichnet,
dass von den stirnseitigen Fräsmeißeln (5a, 5b), die bezüglich der Längsachse (L) der hohlzylindrischen Bandage (2) in einem unterschiedlichen radialen Abstand angeordnet sind, jeweils wenigstens zwei Fräsmeißel (5a, 5b) vorgesehen sind, wobei diese bezüglich ihres radialen Abstands unterschiedlichen Fräsmeißel (5a, 5b) in einer Umfangsrichtung (u) wechselweise verteilt und insbesondere in gleichmäßigen Abständen verteilt an der hohlzylindrischen Bandage (2) angeordnet sind.Milling roll (1) according to claim 3,
characterized,
in that at least two milling bits (5a, 5b) are each provided by the end-face milling bits (5a, 5b), which are arranged at a different radial distance with respect to the longitudinal axis (L) of the hollow cylindrical bandage (2), these being radial with respect to their radial spacing different Fräsmeißel (5a, 5b) in a circumferential direction (u) alternately distributed and distributed in particular at regular intervals on the hollow cylindrical drum (2) are arranged. Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) in radialer Richtung (r) in etwa mittig zwischen der Innenumfangsfläche und der Außenumfangsfläche (22) der hohlzylindrischen Bandage (2) angeordnet ist.Milling roll (1) according to one of the preceding claims,
characterized,
in that at least one end face (21) of the hollow cylindrical bandage (2) has at least one face milling cutter (5a; 5b) arranged approximately radially in the middle between the inner peripheral surface and the outer peripheral surface (22) of the hollow cylindrical bandage (2). Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) in radialer Richtung (r) über die Außenumfangsfläche (22) der hohlzylindrischen Bandage (2) nach radial außen übersteht.Milling roll (1) according to one of the preceding claims,
characterized,
in that on at least one end face (21) of the hollow cylindrical bandage (2) at least one end face milling bit (5a, 5b) projects radially outwardly beyond the outer peripheral surface (22) of the hollow cylindrical bandage (2) in the radial direction (r). Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) in radialer Richtung (r) über die Innenumfangsfläche der hohlzylindrischen Bandage (2) nach radial innen übersteht.Milling roll (1) according to one of the preceding claims,
characterized,
in that on at least one end face (21) of the hollow cylindrical bandage (2) at least one face milling cutter (5a, 5b) projects radially inwards over the inner peripheral surface of the hollow cylindrical bandage (2) in the radial direction (r). Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) mit einem Anstellwinkel (β) angeordnet ist.Milling roll (1) according to one of the preceding claims,
characterized,
in that at least one end face (21) of the hollow cylindrical bandage (2) has at least one end face milling bit (5a, 5b) with an angle of attack (β). Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) direkt in der Bandage (2) an der betreffenden Stirnseite (21) angeordnet ist.Milling roll (1) according to one of the preceding claims,
characterized,
in that at least one end face (21) of the hollow-cylindrical bandage (2) has at least one end-face milling chisel (5a, 5b) arranged directly in the bandage (2) on the relevant end face (21). Fräswalze (1) nach einem der vorausgehenden Ansprüche,
dadurch gekennzeichnet,
dass an wenigstens einer Stirnseite (21) der hohlzylindrischen Bandage (2) wenigstens ein stirnseitiger Fräsmeißel (5a; 5b) als auswechselbarer Fräsmeißel ausgebildet ist.Milling roll (1) according to one of the preceding claims,
characterized,
in that at least one end face (21) of the hollow cylindrical bandage (2) has at least one face-side milling chisel (5a, 5b) as an exchangeable milling chisel. Fräswalze (1) nach einem der vorausgehenden Ansprüche 1 bis 10,
dadurch gekennzeichnet,
dass deren axiale Längserstreckung größer als der Durchmesser ist.Milling roll (1) according to one of the preceding claims 1 to 10,
characterized,
that their axial longitudinal extent is greater than the diameter. Fräswalze gemäß einem der vorausgehenden Ansprüche 1 bis 10,
dadurch gekennzeichnet,
dass deren axiale Längserstreckung kleiner als der Durchmesser ist.Milling roll according to one of the preceding claims 1 to 10,
characterized,
that their axial longitudinal extent is smaller than the diameter. Bodenfräsmaschine mit einem Fahrstand oder handgeführte Bodenfräsmaschine, umfassend wenigstens eine Fräswalze (1) gemäß einem der vorausgehenden Ansprüche.Ground milling machine with a control station or hand-held ground milling machine, comprising at least one milling drum (1) according to one of the preceding claims.
EP11002790.1A 2010-04-06 2011-04-04 Mill cylinder for a floor milling machine and floor milling machine Active EP2374936B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010013983.1A DE102010013983B4 (en) 2010-04-06 2010-04-06 Milling roller for a ground milling machine and ground milling machine

Publications (3)

Publication Number Publication Date
EP2374936A2 true EP2374936A2 (en) 2011-10-12
EP2374936A3 EP2374936A3 (en) 2014-08-20
EP2374936B1 EP2374936B1 (en) 2018-10-17

Family

ID=44260408

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (5)

Country Link
US (1) US8672416B2 (en)
EP (1) EP2374936B1 (en)
CN (1) CN102286913B (en)
DE (2) DE202010018288U1 (en)
ES (1) ES2706390T3 (en)

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Also Published As

Publication number Publication date
CN102286913B (en) 2015-11-25
DE102010013983B4 (en) 2016-01-21
DE202010018288U1 (en) 2015-08-03
US20110241408A1 (en) 2011-10-06
DE102010013983A1 (en) 2011-10-06
CN102286913A (en) 2011-12-21
EP2374936B1 (en) 2018-10-17
US8672416B2 (en) 2014-03-18
ES2706390T3 (en) 2019-03-28
EP2374936A3 (en) 2014-08-20

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