EP0310074A2 - Milling device to be affixed to a mobile apparatus - Google Patents

Milling device to be affixed to a mobile apparatus Download PDF

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Publication number
EP0310074A2
EP0310074A2 EP88116083A EP88116083A EP0310074A2 EP 0310074 A2 EP0310074 A2 EP 0310074A2 EP 88116083 A EP88116083 A EP 88116083A EP 88116083 A EP88116083 A EP 88116083A EP 0310074 A2 EP0310074 A2 EP 0310074A2
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EP
European Patent Office
Prior art keywords
milling
supporting structure
milling cutter
milling machine
guide
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
EP88116083A
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German (de)
French (fr)
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EP0310074A3 (en
EP0310074B1 (en
Inventor
Franz Bröhl
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19873733352 external-priority patent/DE3733352A1/en
Application filed by Individual filed Critical Individual
Priority to AT88116083T priority Critical patent/ATE76668T1/en
Publication of EP0310074A2 publication Critical patent/EP0310074A2/en
Publication of EP0310074A3 publication Critical patent/EP0310074A3/en
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Publication of EP0310074B1 publication Critical patent/EP0310074B1/en
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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • the invention relates to a milling machine that can be attached to a mobile structure, in particular to a construction machine, a Unimog or the like. Road construction vehicles.
  • edge milling of the road surface is required to prevent frost damage, for example.
  • two work steps have so far always been necessary: wet cutting with a diamond joint cutter, removal of the remaining material web of a certain width.
  • the mechanical removal of the remaining web of material is difficult because during the road milling, the carrier vehicle of the milling machine cannot move and maneuver as precisely as would be necessary for grasping the web of material by the milling drum.
  • cross milling is constantly necessary for edge milling in road construction.
  • conventional carrier vehicles that are suitable for mounting cultivators and the self-propelled cutters, it is cumbersome to mount cross cutings for cross connections.
  • the above-mentioned vehicles are too large in length, particularly in view of the cramped construction sites, to allow milling across the direction of the lane in a train, i.e. without maneuvering forward and backward.
  • the invention is therefore based on the problem of creating crop milling cutters of the type mentioned at the outset which are equipped with constructional and in particular caterpillars which are commercially available and can only be blurred vehicles enable precise, quick and flexible road processing, especially rapid cross milling.
  • a milling cutter with the features mentioned at the outset to provide a mounting frame which is detachably attached to the supporting structure and has a horizontal guide running parallel to a longitudinal or transverse side of the supporting structure, along which the milling cutter can be moved back and forth in a sled-like manner relative to the supporting structure by means of a sliding actuator is.
  • Such a cultivator can be attached to the front or rear as well as to one of the two long sides of the carrier vehicle. If the milling machine is connected to the front or rear of the mobile support structure via its mounting frame, the horizontal guide runs parallel to one of the two sides and therefore transversely to the direction of travel or road direction. With the help of the sliding actuator, it is now possible to push the milling machine with its processing tools back and forth like a track-guided carriage during the milling process. Cumbersome turning maneuvers to bring the carrier vehicle into the transverse position are no longer necessary. The advantage is thus achieved that, in principle, relatively large support structures, which were originally not designed for milling use, can also be used for the purpose according to the invention.
  • an excavator is discarded from its bucket and provided with a tiller according to the invention. Its relatively large immobility can then be compensated for by the intended use of the slide actuator along with horizontal guidance in the mounting frame of the milling machine according to the invention, whereby of course the mobile carrier is at a standstill.
  • the actuator is expediently designed as a pneumatic or preferably hydraulic actuating cylinder.
  • This slide actuator cylinder is - for the practical realization of the inventive concept - supported at one end against the horizontal guide, and engages with its other end on the milling machine or - in the case of a slide guide - on its slide.
  • the mounting frame is pivoted about a preferably horizontal axis parallel to the supporting structure side, and that its pivoting position by means of a Tilt actuator is adjustable relative to the structure.
  • An inclination adjusting cylinder used to implement this actuator can then be expediently arranged such that it is coupled on the one hand to the supporting structure and on the other hand to the mounting frame.
  • the mounting frame is provided with an essentially vertically extending, further guide, along which the milling cutter - expediently with the aid of a guide carriage - can be moved up and down relative to the supporting structure by means of a height adjusting element is.
  • a height adjusting element When using an adjusting cylinder for the height adjustment, it is supported at one end against the supporting structure or the vertical guide and engages with the other end on the milling cutter or its guide carriage.
  • This aim also corresponds to another embodiment of the invention, according to which a depth control element is provided which acts on the milling cutter in order to be able to adjust its (processing) depth in relation to the ground level.
  • a (depth) actuating cylinder used for this is supported at one end against the mounting frame and engages at the milling machine with its other end.
  • the depth control element can be advantageously combined with the previously described height control element in that a rough depth / height adjustment is first brought about with one control element and then a desired fine adjustment is achieved with the other control element.
  • a further embodiment of the invention serves to increase the mobility and flexibility of use of the milling cutter according to the invention, according to which it is rotatably suspended on a slide connected to the horizontal guide about an axis approximately perpendicular to its axis of rotation, and that its rotational position can be adjusted by means of a transverse actuator.
  • An actuating cylinder which may be used for this purpose is attached at one end to the horizontal guide, preferably its end part, and at the other end to the milling cutter.
  • the motion control can advantageously be created in the aforementioned configuration in that the slide has a plate which projects over the supporting side and holds the milling cutter with recessed guide slots which run in a circular arc to the axis of rotation of the milling cutter and in which the mounting elements and / or the support point of the lowering element is movably received and can be displaced relative to the horizontal guide by means of the transverse adjusting element.
  • the circular-arc-shaped recesses in the holder plate are easy to produce, and the holder elements, for example, slidably received therein, can be easily realized by screw connections, the projecting screw heads with their underside facing the thread forming sliding surfaces on the plate.
  • the horizontal guide is essentially formed from two parallel, spaced-apart spars, each of which has a bearing bush which is connected to the router or its guide carriage and can be moved longitudinally is applied.
  • this horizontal guide consisting of two rails, the attachment of the milling cutter is stabilized to such an extent that the natural vibrations of the milling drum, which inevitably arise in the milling operation cannot have a serious impact on machining accuracy and operational safety.
  • the milling cutter has a milling drum and a grinding wheel which are arranged in a rotating manner on a common shaft, either the milling drum or the grinding wheel being rigid and the respective other Tool are mounted freely running on the shaft, and both are driven in different ways.
  • One concretization is to couple the roller and the disk to a drive motor, in particular a hydraulic motor, which give them different angular velocities depending on the amount and / or sign. With this special training it is possible, for example, to separate house walls in the building renovation area.
  • the wall can be cut with the milling drum with a sufficiently large diameter and, on the other hand, the plaster can be precisely ground out in one operation due to the separate running of the smaller grinding wheel.
  • Another advantage is that during the combined milling and grinding roller and disc can be driven in opposite directions of rotation and so natural vibrations of the two rotating elements cancel each other. As a result, an extraordinary smooth running is achieved overall, which promotes the machining accuracy when milling and grinding edges of the wall plaster, the road surface or the like. Above all, with this training it is possible to grind a precise, unbroken and straight edge at the same time during surface cold milling, where if there is no web between the milling drum and the grinding wheel.
  • a mounting frame 2 is pivotably articulated in a vertical plane on the support structure 1 (not shown) on a mobile pedestal.
  • the mounting frame 2 forms a connecting or coupling member for the actual milling machine 4, 5, consisting of the milling drum 4 and the grinding wheel 5 arranged parallel to it.
  • the articulation point 3 forms a pivot axis extending horizontally (into the plane of the drawing) about which the milling cutter 4, 5 together with the associated mounting frame 2 can be pivoted into a specific angular position with respect to the floor surface 7 by means of the inclination adjusting cylinder 6.
  • the tilt actuating cylinder 6 is coupled at one end to the support structure 1 via the further articulation point 8 and to the mounting frame 2 at its other end via the further articulation point 9.
  • an essentially vertical sliding frame 10, directed towards the floor surface 7, is arranged in the mounting frame 2, projecting transversely from the holding webs 11.
  • a vertical guide 12, for example formed from a tube or the like, extends between these and parallel to the displacement frame 10. This is partially surrounded by a bearing bush 13 sliding thereon, via which the milling cutter 4, 5 can be adjusted in height.
  • the bearing bush 13 has a sliding web 14 projecting towards the supporting structure 1, which is connected to the lower end of the height adjustment cylinder 15. Its upper end is expediently attached in the region of the articulation point 3, which forms the horizontal pivot axis for the mounting frame 2.
  • the horizontal guide 16 with associated, parallel bars 16a, 16b and the cooperating slide actuator cylinder 17 are indicated by dashed lines in FIG. 1 and are explained in more detail with reference to FIGS. 2 and 3.
  • a guide carriage 18 is coupled to the horizontal guide 16 and the vertical guide 12 in terms of movement, from which a mounting plate 19 projects approximately parallel to the axis of rotation 20 of the milling cutter 4, 5.
  • the router 4, 5 is on the underside of the mounting plate 19 by approximately perpendicular to the Rotati onsachse 20 extending axis of rotation 21 rotatably suspended.
  • a retaining bolt 22 inserted into the mounting plate 19 through which the axis of rotation 21 runs, a depth adjusting cylinder 23 supported against the underside of the mounting plate 19 and a guide screw 24 are indicated schematically in FIG. 1 in FIG. 1.
  • the head of the guide screw 24 rests on the top of an angle frame 25, which is attached to the top of the mounting plate 19.
  • the end of the depth setting cylinder 23 opposite the mounting plate 19 is connected to the milling cutter 4, 5 (not shown in FIG. 1), so that in addition to the height adjustment by the height adjusting cylinder 15, a further, more refined adjustment of the distance of the milling cutter 4, 5 compared to it the bottom surface 7 can be brought about.
  • FIGS. 2 and 3 According to the position shown in FIG. 1, the working sides of the milling drum 4 and the grinding wheel 5 are visible with round shank chisels 27 on the drum 4 and diamond segments 28 on the drum 5. Furthermore, the position inclined relative to the floor surface 7 can be seen, which can be brought about by actuating the inclination adjusting cylinder 6 (pivoting of the mounting frame around the articulation point 3).
  • the end face of the milling cutter 4, 5 facing the supporting structure 1 can be immersed approximately 4 cm in the material to be milled, while the opposite end face is at the same level with the floor surface.
  • the immersion depth in the material to be milled can be adjusted by the depth adjusting cylinder 23 and / or the height adjusting cylinder 15, the first and / or the second-mentioned causes a movement of the milling cutter 4, 5 in a substantially vertical direction 29 with respect to the base 7.
  • the height adjustment cylinder moves the guide carriage 18 along the vertical guide 12.
  • the milling cutter (here covered by the angular frame 25) with its mounting frame 2 is attached to the front side of a (schematically indicated) carrier vehicle 30 with the direction of travel 31.
  • the mounting frame 2 has a structure approximately similar to a parallelogram: the horizontal guide 16 formed from one or more parallel spars is fastened in further mounting webs 32 which extend perpendicularly thereto and project perpendicularly from one of the two ends of a receiving frame 33 , which runs approximately parallel to the horizontal guide 16 and serves to stabilize it.
  • the axis of rotation 21 leading through the holding bolt 22 extends perpendicular to the plane of the drawing according to FIG. 2.
  • the rotatable suspension is essentially realized by means of circular guide slots 34, which are formed by aligned recesses made in the angle frame 25 and the mounting plate 19 located underneath.
  • the radii of the circular curvatures of the guide slots 34 each intersect the axis of rotation 21 approximately in the region of the retaining bolt 22.
  • the heads of the guide screws 24 visible in FIG Guide slots slidably received; for the displacement along the marked, circular path, the transverse actuating cylinder 26, whose end facing away from the receiving frame 33 is received in one of these guide slots and, according to the example shown, can be moved back and forth along a circular arc corresponding to 90 °.
  • Fig. 3 parts corresponding to Figs. 1 and 2 are given the same reference numerals. Compared to the exemplary embodiment according to FIG. 2, this differs according to FIG. 3 in that the milling cutter with mounting frame 2 is attached to the longitudinal side of the carrier vehicle 30 with the direction of travel 31.
  • the structure 1 and the mounting frame 2 are only roughly indicated to simplify the drawing.
  • the depth adjustment of the milling grinding roller 4, 5 can be effected by means of a rotating spindle 47 during the working process.
  • the milling machine 4, 5 can run on rollers 414 which are pressed onto the spindle 47.
  • rollers 414 skids or the like can also be attached.
  • a bearing shaft 410 carries the milling grinding roller 4, 5, to which the milling roller 4 and the grinding wheel 5 are combined as a combined unit.
  • the milling drum 4 is firmly screwed onto the bearing shaft 410 and is driven by a hydraulic drive motor 44 and carries the round shank 27 as working tools.
  • the grinding wheel 5 is freely supported on the bearing shaft 410. It carries the diamond segments 28 and is shown in the drawing by means of the further hydraulic motor 43 Example driven by V-belts 38.
  • the drive of the milling drum 4 and the grinding wheel 5 are thus separated so that their speeds can be selected so that the peripheral speeds of the work tools (round shank chisel 27 and diamond segments 28) can be adapted to the prevailing operating conditions. Esp. the directions of rotation of the roller 4 and the disc 5 are opposite to each other.
  • the small distance between the roller 4 and the disc 5 is clear, whereby a complete working out of the material plane 49 is possible in one operation.
  • the edge 45 remains precisely straight during milling grinding.
  • the grain 412 embedded in the high-strength material is not thrown out during milling, but is simultaneously ground in one operation by means of the disk 5. A precise connection of the new ceiling to the edge 45 of the old covering is now possible.
  • the sectional view acc. 6 shows the method of operation by means of the milling drum 4 with a larger diameter and a smaller width, while in this case the grinding wheel 5, which is smaller in diameter, grinds out the straight edge 45 again. This happens again in one operation.
  • Working by means of the roller 4, for example with a larger diameter, is necessary for the cutting of road surfaces at the start of work in the civil engineering area and for the wall cutting in the building renovation area or the like.

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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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Agricultural Machines (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The milling device, which can be attached to a mobile apparatus, in particular a construction machine, Unimog or the like, is characterised by a fixing frame which can be releasably mounted on the apparatus and has a horizontal guide running parallel to a longitudinal or transverse side of the apparatus, along which guide the milling device can be moved back and forth relative to the apparatus in the manner of a carriage by means of a sliding actuating member. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Fräse, anbaubar an ein fahrbares Tragwerk, insbes. an eine Baumaschine, einen Uni­mog od. dgl. Straßenbau-Fahrzeuge.The invention relates to a milling machine that can be attached to a mobile structure, in particular to a construction machine, a Unimog or the like. Road construction vehicles.

Im Straßen-, Kabel- und Tiefbau werden Kantenfräsungen der Straßendecke verlangt, um beispielsweise Frostschäden vor­zubeugen. Das heißt, es wird die alte Fahrbahn auf eine be­stimmte Breite und Tiefe angefräst, um die neue Decke mit der alten überlappend einbauen zu können. Um auf der alten Straßendecke möglichst gerade Kanten zu schaffen, sind bis­her stets zwei Arbeitsgänge erforderlich: nasses Trenn­schleifen mittels eines Diamantfugenschneiders, Beseitigung des zuvor verbliebenen Materialsteges bestimmter Breite. Die maschinelle Beseitigung des verbleibenden Material­steges ist schwierig, weil während des Straßenfräsens das Trägerfahrzeug der Fräse nicht so genau fahren und rangie­ren kann, wie es zum Erfassen des Materialsteges durch die Fräswalze notwendig wäre.In road, cable and civil engineering, edge milling of the road surface is required to prevent frost damage, for example. This means that the old roadway is milled to a certain width and depth in order to be able to install the new ceiling overlapping the old one. To create edges that are as straight as possible on the old road surface, two work steps have so far always been necessary: wet cutting with a diamond joint cutter, removal of the remaining material web of a certain width. The mechanical removal of the remaining web of material is difficult because during the road milling, the carrier vehicle of the milling machine cannot move and maneuver as precisely as would be necessary for grasping the web of material by the milling drum.

Ferner sind beim Kantenfräsen im Straßenbau ständig Quer­fräsungen notwendig. Mit den herkömmlichen, zur Aufnahme von Anbaufräsen geeigneten Trägerfahrzeugen und den selbst­fahrenden Fräsen ist es allerdings umständlich, Querfräsun­gen für Queranschlüsse anzubringen. Die genannten Fahrzeuge sind in ihren Längenmaßen insbes. angesichts beengter Bau­stellen zu groß, um eine Fräsung quer zur Fahrbahnrichtung in einem Zug, d.h. ohne Vorwärts- und Rückwärtsrangieren, vorzunehmen.In addition, cross milling is constantly necessary for edge milling in road construction. However, with the conventional carrier vehicles that are suitable for mounting cultivators and the self-propelled cutters, it is cumbersome to mount cross cutings for cross connections. The above-mentioned vehicles are too large in length, particularly in view of the cramped construction sites, to allow milling across the direction of the lane in a train, i.e. without maneuvering forward and backward.

Der Erfindung liegt somit das Problem zugrunde, Anbaufräsen der eingangs genannten Art zu schaffen, welche mit marktüb­lichen, nur unscharf rangierbaren Bau- und insbes. Raupen­ fahrzeugen eine exakte, zügige und flexible Straßenbearbei­tung, vor allem rasche Querfräsungen, ermöglichen.The invention is therefore based on the problem of creating crop milling cutters of the type mentioned at the outset which are equipped with constructional and in particular caterpillars which are commercially available and can only be blurred vehicles enable precise, quick and flexible road processing, especially rapid cross milling.

Zur Lösung wird bei einer Fräse mit den eingangs genannten Merkmalen erfindungsgemäß vorgeschlagen, einen am Tragwerk lösbar angebrachten Anbaurahmen mit einer parallel zu einer Längs- oder Querseite des Tragwerks verlaufenden Horizon­talführung vorzusehen, längs welcher die Fräse mittels ei­nes Schiebestellorgans relativ zum Tragwerk schlittenähn­lich hin- und herbewegbar ist.To solve this problem, it is proposed according to the invention in a milling cutter with the features mentioned at the outset to provide a mounting frame which is detachably attached to the supporting structure and has a horizontal guide running parallel to a longitudinal or transverse side of the supporting structure, along which the milling cutter can be moved back and forth in a sled-like manner relative to the supporting structure by means of a sliding actuator is.

Eine dergestalte Anbaufräse kann sowohl an der Stirn- oder Rückseite als auch an einer der beiden Längsseiten des Trä­gerfahrzeugs angebracht werden. Wird die Fräse über deren Anbaurahmen mit der Stirn- oder Rückseite des fahrbaren Trägerwerks verbunden, verläuft die Horizontalführung zu einer der beiden Seiten parallel und mithin quer zur Fahrtrichtung bzw. Fahrbahnrichtung. Mit Hilfe des Schie­bestellorgans ist es nun möglich, die Fräse mit ihren Bear­beitungswerkzeugen während des Fräsvorgangs wie einen spur­geführten Schlitten quer zu Fahrbahnrichtung hin- und her­zuschieben. Umständliche Wendemanöver, um das Trägerfahr­zeug in die Querstellung zu bringen, sind nicht mehr not­wendig. Mithin wird der Vorteil erzielt, daß grundsätzlich auch relativ große Trägerwerke, die ursprünglich nicht für den Fräseinsatz ausgelegt sind, für den erfindungsgemäßen Zweck verwendet werden können. Beispielsweise wird ein Bag­ger seines Tieflöffels entledigt und mit einer erfindungs­gemäßen Anbaufräse versehen. Dessen verhältnismäßig große Unbeweglichkeit läßt sich dann durch den bestimmungsgemäßen Einsatz des Schiebestellorgans nebst Horizontalführung im Anbaurahmen der erfindungsgemäßen Fräse ausgleichen, wobei natürlich das fahrbare Trägerwerk sich im Stillstand befin­det.Such a cultivator can be attached to the front or rear as well as to one of the two long sides of the carrier vehicle. If the milling machine is connected to the front or rear of the mobile support structure via its mounting frame, the horizontal guide runs parallel to one of the two sides and therefore transversely to the direction of travel or road direction. With the help of the sliding actuator, it is now possible to push the milling machine with its processing tools back and forth like a track-guided carriage during the milling process. Cumbersome turning maneuvers to bring the carrier vehicle into the transverse position are no longer necessary. The advantage is thus achieved that, in principle, relatively large support structures, which were originally not designed for milling use, can also be used for the purpose according to the invention. For example, an excavator is discarded from its bucket and provided with a tiller according to the invention. Its relatively large immobility can then be compensated for by the intended use of the slide actuator along with horizontal guidance in the mounting frame of the milling machine according to the invention, whereby of course the mobile carrier is at a standstill.

Das Stellorgan ist zweckmäßig als pneumatischer oder vor­zugsweise hydraulischer Stellzylinder ausgebildet. Dieser Schiebestellzylinder - ist zur zweckmäßigen Realisierung des Erfindungsgedankens - mit seinem einen Ende gegen die Horizontalführung abgestützt, und greift mit seinem anderen Ende an der Fräse oder - bei Schlittenführung - an dessen Schlitten an.The actuator is expediently designed as a pneumatic or preferably hydraulic actuating cylinder. This slide actuator cylinder is - for the practical realization of the inventive concept - supported at one end against the horizontal guide, and engages with its other end on the milling machine or - in the case of a slide guide - on its slide.

Um während des Querfräsens die Fräswalze mit ihrer Längsachse in eine gegenüber der Bodenoberfläche ge­wünschte, geneigte Lage zu versetzen, ist in Weiterbildung der Erfindung vorgesehen, daß der Anbaurahmen um eine zur Tragwerkseite parallelen, vorzugsweise horizontalen Achse schwenkbar angelenkt ist, und daß dessen Schwenklage mit­tels eines Neigungsstellorgans relativ zum Tragwerk ein­stellbar ist. Ein zur Realisierung dieses Stellorgans ver­wendeter Neigungsstellzylinder läßt sich dann zweckmäßig so anordnen, daß er einerseits an das Tragwerk und anderer­seits an den Anbaurahmen gekuppelt ist. Insgesamt kann mit dieser speziellen Ausbildung besonders leicht "auf Null laufend" gefräst werden, was bedeutet, daß die eine Stirn­seite der Fräswalze z.B. 4 cm tief im zu bearbeitenden Ma­terial steht, während die andere Stirnseite sich etwa auf dem Niveau der Bodenoberfläche befindet ("auf Null aus­läuft").In order to move the milling drum with its longitudinal axis into a desired, inclined position with respect to the ground surface during transverse milling, it is provided in a further development of the invention that the mounting frame is pivoted about a preferably horizontal axis parallel to the supporting structure side, and that its pivoting position by means of a Tilt actuator is adjustable relative to the structure. An inclination adjusting cylinder used to implement this actuator can then be expediently arranged such that it is coupled on the one hand to the supporting structure and on the other hand to the mounting frame. Overall, this special design makes it particularly easy to mill "running to zero", which means that one end of the milling drum e.g. 4 cm deep in the material to be processed, while the other end face is approximately at the level of the floor surface ("runs to zero").

Nach einer anderen Weiterbildung der Erfindung ist der An­baurahmen mit einer im wesentlichen vertikal verlaufenden, weiteren Führung versehen, längs welcher die Fräse - zweck­mäßigerweise mit Hilfe eines Führungsschlittens - durch ein Höhenstellorgan relativ zum Tragwerk auf und ab bewegbar ist. Bei Verwendung eines Stellzylinders für die Höhenver­stellung ist dieser mit seinem einen Ende gegen das Trag­werk oder die Vertikalführung abgestützt und greift mit dem anderen Ende an der Fräse oder dessen Führungsschlitten an. Diese Ausbildung ermöglicht die Einstellung der Ein­dringtiefe der Fräswalze in das zu bearbeitende Material und läßt sich besonders wirkungsvoll mit der zuvor erläu­terten Einstellung der Neigung der Fräswalze kombinieren, indem im Betrieb "auf Null laufend" die Eindringtiefe nur eines Walzenendes gezielt beeinflußt werden kann.According to another development of the invention, the mounting frame is provided with an essentially vertically extending, further guide, along which the milling cutter - expediently with the aid of a guide carriage - can be moved up and down relative to the supporting structure by means of a height adjusting element is. When using an adjusting cylinder for the height adjustment, it is supported at one end against the supporting structure or the vertical guide and engages with the other end on the milling cutter or its guide carriage. This design enables the depth of penetration of the milling drum to be adjusted into the material to be machined and can be combined particularly effectively with the previously described adjustment of the inclination of the milling drum, in that the running depth "running to zero" can be specifically influenced the penetration depth of only one roller end.

Dieser Zielrichtung entspricht auch eine andere Ausbildung der Erfindung, nach welcher ein Tiefenstellorgan vorgesehen ist, welches an der Fräse angreift, um deren (Bearbeitungs-­)Tiefe in Bezug auf das Bodenniveau einstellen zu können. Ein hierfür verwendeter (Tiefen-)Stellzylinder ist mit sei­nem einen Ende gegen den Anbaurahmen abgestützt und greift mit seinem anderen Ende an der Fräse an. Das Tiefenstellor­gan läßt sich mit dem zuvor erläuterten Höhenstellorgan da­durch vorteilhaft kombinieren, daß mit dem einen Stellorgan zunächst eine grobe Tiefen-/Höhenverstellung herbeigeführt wird, und dann mit dem anderen Stellorgan eine gewünschte Feineinstellung erzielt wird.This aim also corresponds to another embodiment of the invention, according to which a depth control element is provided which acts on the milling cutter in order to be able to adjust its (processing) depth in relation to the ground level. A (depth) actuating cylinder used for this is supported at one end against the mounting frame and engages at the milling machine with its other end. The depth control element can be advantageously combined with the previously described height control element in that a rough depth / height adjustment is first brought about with one control element and then a desired fine adjustment is achieved with the other control element.

Der Erhöhung der Beweglichkeit und Anwendungsflexibilität der erfindungsgemäßen Fräse dient eine weitere Ausbildung der Erfindung, nach welcher diese an einem mit der Horizon­talführung verbundenen Schlitten um eine zu deren Rotati­onsachse etwa senkrechte Achse drehbar aufgehängt ist, und daß deren Drehstellung mittels eines Querstellorgans ein­stellbar ist. Ein hierfür ggf. verwendeter Stellzylinder ist mit seinem einen Ende an der Horizontalführung, vor­zugsweise deren endseitiges Abschlußteil, und mit seinem anderen Ende an der Fräse angebracht. Mit dieser vorteil­ haften Ausbildung ist bei Beibehaltung einer einzigen Trä­gerfahrzeugrichtung eine Fräsung sowohl in Längsrichtung der Fahrbahn als auch in deren Querrichtung möglich.A further embodiment of the invention serves to increase the mobility and flexibility of use of the milling cutter according to the invention, according to which it is rotatably suspended on a slide connected to the horizontal guide about an axis approximately perpendicular to its axis of rotation, and that its rotational position can be adjusted by means of a transverse actuator. An actuating cylinder which may be used for this purpose is attached at one end to the horizontal guide, preferably its end part, and at the other end to the milling cutter. With this advantage Adherent training is possible while maintaining a single carrier vehicle direction both in the longitudinal direction of the roadway and in the transverse direction.

Zur Realisierung dieser Quer-/Längsverstellung läßt sich bei der zuvor genannten Ausbildung die Bewegungsführung da­durch vorteilhaft schaffen, daß der Schlitten eine bezüg­lich der Tragwerkseite auskragende, die Fräse halternde Platte mit ausgenommenen, zur genannten Drehachse der Fräse kreisbogenförmig verlaufenden Führungsschlitzen aufweist, in welchen die Halterungselemente und/oder die Abstütz­stelle des Tiefstellorgans beweglich aufgenommen und mit­tels des Querstellorgans relativ zur Horizontalführung ver­schiebbar sind. Die kreisbogenförmigen Ausnehmungen in der Halterplatte sind einfach herstellbar, und die darin bei­spielsweise gleitend aufgenommenen Halterungselemente las­sen sich einfach durch Schraubverbindungen realisieren, wo­bei die auskragenden Schraubköpfe mit ihrer dem Gewinde zu­gewandten Unterseite Gleitflächen auf der Platte bilden. Bei Verwendung des o.g., an der Fräse angekuppelten Tiefen­zylinders ist es zweckmäßig, dessen von der Fräse abgewand­tes Ende ebenfalls in einem Führungsschlitz mit einer ent­sprechend aufliegenden Auskragung gleitbar zu haltern.In order to implement this transverse / longitudinal adjustment, the motion control can advantageously be created in the aforementioned configuration in that the slide has a plate which projects over the supporting side and holds the milling cutter with recessed guide slots which run in a circular arc to the axis of rotation of the milling cutter and in which the mounting elements and / or the support point of the lowering element is movably received and can be displaced relative to the horizontal guide by means of the transverse adjusting element. The circular-arc-shaped recesses in the holder plate are easy to produce, and the holder elements, for example, slidably received therein, can be easily realized by screw connections, the projecting screw heads with their underside facing the thread forming sliding surfaces on the plate. When using the above-mentioned depth cylinder, which is coupled to the milling machine, it is expedient to hold its end facing away from the milling machine in a guide slot with a corresponding overlying projection.

Der stabilen Befestigung der Fräse bzw. deren Führungs­schlittens an der Horizontalführung dient es, wenn in weiterer Ausbildung der Erfindung die Horizontalführung im wesentlichen aus zwei parallelen, beabstandeten Holmen gebildet ist, auf welche jeweils eine mit der Fräse oder ggf. deren Führungsschlitten ortsfest verbundene Lager­buchse längsverschiebbar aufgebracht ist. Mit dieser aus zwei Schienen bestehenden Horizontalführung ist die Anbrin­gung der Fräse soweit stabilisiert, daß die im Fräsbetrieb unvermeidlich entstehenden Eigenschwingungen der Fräswalze sich nicht gravierend auf die Bearbeitungsgenauigkeit und Betriebssicherheit auswirken können.The stable attachment of the router or its guide carriage to the horizontal guide is used if, in a further embodiment of the invention, the horizontal guide is essentially formed from two parallel, spaced-apart spars, each of which has a bearing bush which is connected to the router or its guide carriage and can be moved longitudinally is applied. With this horizontal guide consisting of two rails, the attachment of the milling cutter is stabilized to such an extent that the natural vibrations of the milling drum, which inevitably arise in the milling operation cannot have a serious impact on machining accuracy and operational safety.

Um den beim eingangs genannten Trennschleifen verbleibenden Materialsteg zu beseitigen, ist auf der Basis der Erfindung vorgesehen, daß die Fräse eine Fräswalze und eine Schleif­scheibe aufweist, welche auf einer gemeinsamen Welle rotie­rend angeordnet sind, wobei entweder die Fräswalze oder die Schleifscheibe starr und das jeweilige andere Werkzeug frei laufend auf der Welle montiert sind, und beide in unter­schiedlicher Weise angetrieben werden. Eine Konkretisierung besteht darin, die Walze und die Scheibe je mit einem An­triebsmotor, insbes. Hydromotor, zu koppeln, welche diesen nach Betrag und/oder Vorzeichen unterschiedliche Winkelge­schwindigkeiten erteilen. Mit dieser besonderen Ausbildung ist es z.B. möglich, im Hochbausanierungsbereich Hauswände zu trennen. Dank der - beispielsweise am Hydraulikbagger­stiel befindlichen - Anbaufräsmaschine kann einerseits mit der im Durchmesser ausreichend groß dimensionierten Fräs­walze die Wand geschnitten werden und andererseits durch das getrennte Mitlaufen der im Durchmesser kleineren Schleifscheibe der Verputz in einem Arbeitsgang präzise ge­rade ausgeschliffen werden. Ein weiterer Vorteil besteht darin, daß während des miteinander kombinierten Fräsens und Schleifens Walze und Scheibe in einander entgegengesetzten Drehrichtungen angetrieben werden können und so Eigen­schwingungen beider Drehorgane sich gegeneinander aufheben. Hierdurch wird insgesamt eine außerordentliche Laufruhe er­zielt, was die Bearbeitungsgenauigkeit beim Fräsen und Aus­schleifen von Kanten des Wandverputzes, des Straßenbelages od. dgl. fördert. Vor allem ist es mit dieser Ausbildung möglich, während des Flächenkaltfräsens gleichzeitig eine präzise, ungebrochene und gerade Kante auszuschleifen, wo­ bei zwischen der Fräswalze und der Schleifscheibe kein Steg stehen bleibt.In order to eliminate the material web remaining in the abrasive grinding mentioned at the outset, it is provided on the basis of the invention that the milling cutter has a milling drum and a grinding wheel which are arranged in a rotating manner on a common shaft, either the milling drum or the grinding wheel being rigid and the respective other Tool are mounted freely running on the shaft, and both are driven in different ways. One concretization is to couple the roller and the disk to a drive motor, in particular a hydraulic motor, which give them different angular velocities depending on the amount and / or sign. With this special training it is possible, for example, to separate house walls in the building renovation area. Thanks to the add-on milling machine, which is located on the hydraulic excavator arm, for example, the wall can be cut with the milling drum with a sufficiently large diameter and, on the other hand, the plaster can be precisely ground out in one operation due to the separate running of the smaller grinding wheel. Another advantage is that during the combined milling and grinding roller and disc can be driven in opposite directions of rotation and so natural vibrations of the two rotating elements cancel each other. As a result, an extraordinary smooth running is achieved overall, which promotes the machining accuracy when milling and grinding edges of the wall plaster, the road surface or the like. Above all, with this training it is possible to grind a precise, unbroken and straight edge at the same time during surface cold milling, where if there is no web between the milling drum and the grinding wheel.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung einiger bevor­zugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen jeweils in schematischer Darstel­lung:

  • Fig. 1 eine Seitenansicht auf eine Fräse mit Anbaurahmen;
  • Fig. 2 eine Draufsicht auf die Fräse gem. Fig. 1, ange­bracht an der Stirn- oder Rückseite eines fahrba­ren Tragwerks;
  • Fig. 3 eine entsprechende Draufsicht auf eine Fräse mit Anbaurahmen gemäß Fig. 1, angebracht an einer Längs­seite eines fahrbaren Tragwerks;
  • Fig. 4 in Seitenansicht den kombinierten Einsatz von Fräs­walze und Schleifscheibe ohne Anbaurahmen;
  • Fig. 5 eine der Fig. 4 entsprechende Schnittdarstellung einer präzise gerade geschliffenen Kante und
  • Fig. 6 eine Fig. 5 entsprechende Schnittdarstellung einer mit unterschiedlichen Arbeitstiefen für die Fräswal­ze und die Schleifscheibe bearbeiteten Kante.
Further features, details and advantages of the invention will become apparent from the following description of some preferred embodiments of the invention and from the drawing. Each shows in a schematic representation:
  • Figure 1 is a side view of a router with mounting frame.
  • Fig. 2 is a plan view of the router acc. Figure 1, attached to the front or back of a mobile structure.
  • FIG. 3 shows a corresponding top view of a milling cutter with a mounting frame according to FIG. 1, attached to a long side of a mobile supporting structure;
  • 4 shows a side view of the combined use of milling drum and grinding wheel without mounting frame;
  • Fig. 5 is a sectional view corresponding to FIG. 4 of a precisely straight edge and
  • 6 is a sectional view corresponding to FIG. 5 of an edge machined with different working depths for the milling drum and the grinding wheel.

Gemäß dem in Fig. 1 dargestellten Ausführungsbeispiel ist an dem zu einem (nicht gezeichneten) fahrbaren Untersatz gehörigen Tragwerk 1 ein Anbaurahmen 2 über die Gelenk­stelle 3 in einer vertikalen Ebene schwenkbar angelenkt. Der Anbaurahmen 2 bildet ein Verbindungs- oder Kupplungs­glied für die eigentliche Fräse 4,5, bestehend aus der Fräswalze 4 und der dazu parallel laufend angeordneten Schleifscheibe 5.According to the exemplary embodiment shown in FIG. 1, a mounting frame 2 is pivotably articulated in a vertical plane on the support structure 1 (not shown) on a mobile pedestal. The mounting frame 2 forms a connecting or coupling member for the actual milling machine 4, 5, consisting of the milling drum 4 and the grinding wheel 5 arranged parallel to it.

Gemäß Fig. 1 bildet die Gelenkstelle 3 eine horizontal (in die Zeichenebene hinein) verlaufende Schwenkachse, um wel­che die Fräse 4, 5 nebst zugehörigem Anbaurahmen 2 mittels des Neigungsstellzylinders 6 in eine bestimmte Winkelstel­lung gegenüber der Bodenoberfläche 7 verschwenkt werden kann. Der Neigungsstellzylinder 6 ist mit seinem einen Ende über die weitere Gelenkstelle 8 am Tragwerk 1, und mit sei­nem anderen Ende über die weitere Gelenkstelle 9 am Anbau­rahmen 2 angekuppelt.1, the articulation point 3 forms a pivot axis extending horizontally (into the plane of the drawing) about which the milling cutter 4, 5 together with the associated mounting frame 2 can be pivoted into a specific angular position with respect to the floor surface 7 by means of the inclination adjusting cylinder 6. The tilt actuating cylinder 6 is coupled at one end to the support structure 1 via the further articulation point 8 and to the mounting frame 2 at its other end via the further articulation point 9.

Wie aus Fig. 1 ersichtlich, ist im Anbaurahmen 2 ein im we­sentlichen vertikal verlaufender, zur Bodenoberfläche 7 hin gerichteter Verschieberahmen 10 angeordnet, von dem Halte­rungsstege 11 quer vorspringen. Zwischen diesen erstreckt sich parallel zum Verschieberahmen 10 eine beispielsweise aus einem Rohr od. dgl. gebildete Vertikalführung 12. Diese ist teilweise von einer darauf gleitenden Lagerbuchse 13 umgeben, über welche die Fräse 4, 5 höhenmäßig verstellbar ist. Zu diesem Zweck weist die Lagerbuchse 13 einen zum Tragwerk 1 vorspringenden Schiebesteg 14 auf, der mit dem unteren Ende des Höhenstellzylinders 15 verbunden ist. Des­sen oberes Ende ist zweckmäßigerweise im Bereich der Ge­lenkstelle 3, welche die horizontale Schwenkachse für den Anbaurahmen 2 bildet, angebracht.As can be seen from FIG. 1, an essentially vertical sliding frame 10, directed towards the floor surface 7, is arranged in the mounting frame 2, projecting transversely from the holding webs 11. A vertical guide 12, for example formed from a tube or the like, extends between these and parallel to the displacement frame 10. This is partially surrounded by a bearing bush 13 sliding thereon, via which the milling cutter 4, 5 can be adjusted in height. For this purpose, the bearing bush 13 has a sliding web 14 projecting towards the supporting structure 1, which is connected to the lower end of the height adjustment cylinder 15. Its upper end is expediently attached in the region of the articulation point 3, which forms the horizontal pivot axis for the mounting frame 2.

Die Horizontalführung 16 mit dazugehörigen, parallelen Hol­men 16a, 16b und der damit zusammenwirkende Schiebestellzy­linder 17 sind in Fig. 1 gestrichelt angedeutet und werden anhand der Fig. 2 bzw. 3 näher erläutert. Mit der Horizon­talführung 16 und der Vertikalführung 12 bewegungsmäßig ge­koppelt ist ein Führungsschlitten 18, von dem eine Halte­rungsplatte 19 etwa parallel zur Rotationsachse 20 der Fräse 4, 5 auskragt. Die Fräse 4, 5 ist an der Unterseite der Halterungsplatte 19 um die etwa senkrecht zur Rotati­ onsachse 20 verlaufende Drehachse 21 verdrehbar aufgehängt. Von den Aufhängungsmitteln sind in Fig. 1 lediglich ein in die Halterungsplatte 19 eingelassener Haltebolzen 22, durch den die Drehachse 21 verläuft, ein gegen die Unterseite der Halterungsplatte 19 abgestützter Tiefenstellzylinder 23 so­wie eine Führungsschraube 24 in Fig. 1 schematisch ange­deutet. Der Kopf der Führungsschraube 24 liegt auf der Oberseite eines Winkelrahmens 25 auf, welche auf der Ober­seite der Halterungsplatte 19 angebracht ist. Das der Hal­terungsplatte 19 entgegengesetzte Ende des Tiefenstellzy­linders 23 ist mit der Fräse 4, 5 verbunden (in Fig. 1 nicht dargestellt), so daß in Ergänzung zur Höhenverstel­lung durch den Höhenstellzylinder 15 noch eine weitere, verfeinerte Einstellung des Abstands der Fräse 4, 5 gegen­über der Bodenfläche 7 herbeigeführt werden kann. Die Ver­drehung der Fräse 4, 5 um die senkrecht durch die Halte­rungsplatte verlaufende Drehachse 21 läßt sich mit Hilfe des Querstellzylinders 26 herbeiführen. Die nähere Funkti­onsweise dieser Querverstellung durch Drehung wird aus den Fig. 2 und 3 weiter deutlich. Gemäß der in Fig. 1 gezeigten Stellung sind von der Fräswalze 4 und der Schleifscheibe 5 deren Arbeitsseiten mit Rundschaftmeiseln 27 auf der Walze 4 und Diamantsegmenten 28 auf der Walze 5 sichtbar. Ferner ist die gegenüber der Bodenoberfläche 7 geneigte Stellung erkennbar, welche sich durch Betätigung des Neigungs­stellzylinders 6 (Verschwenken des Anbaurahmens um die Ge­lenkstelle 3) herbeiführen läßt. Aufgrund der gezeigten, geneigten Stellung kann beispielsweise das dem Tragwerk 1 zugewandte Stirnende der Fräse 4, 5 etwa 4 cm in das zu fräsende Material eintauchen, während sich das entgegenge­setzte Stirnende mit der Bodenoberfläche auf gleichem Ni­veau befindet. Die Eintauchtiefe in das zu fräsende Mate­rial läßt sich durch den Tiefenstellzylinder 23 und/oder den Höhenstellzylinder 15 einstellen, wobei der erst­ und/oder zweitgenannte eine Bewequng der Fräse 4,5 in im wesentlichen vertikaler Richtung 29 bezüglich des Bodens 7 herbeiführt. Der Höhenstellzylinder verschiebt dabei den Führungsschlitten 18 längs der Vertikalführung 12.The horizontal guide 16 with associated, parallel bars 16a, 16b and the cooperating slide actuator cylinder 17 are indicated by dashed lines in FIG. 1 and are explained in more detail with reference to FIGS. 2 and 3. A guide carriage 18 is coupled to the horizontal guide 16 and the vertical guide 12 in terms of movement, from which a mounting plate 19 projects approximately parallel to the axis of rotation 20 of the milling cutter 4, 5. The router 4, 5 is on the underside of the mounting plate 19 by approximately perpendicular to the Rotati onsachse 20 extending axis of rotation 21 rotatably suspended. Of the suspension means, only a retaining bolt 22 inserted into the mounting plate 19 through which the axis of rotation 21 runs, a depth adjusting cylinder 23 supported against the underside of the mounting plate 19 and a guide screw 24 are indicated schematically in FIG. 1 in FIG. 1. The head of the guide screw 24 rests on the top of an angle frame 25, which is attached to the top of the mounting plate 19. The end of the depth setting cylinder 23 opposite the mounting plate 19 is connected to the milling cutter 4, 5 (not shown in FIG. 1), so that in addition to the height adjustment by the height adjusting cylinder 15, a further, more refined adjustment of the distance of the milling cutter 4, 5 compared to it the bottom surface 7 can be brought about. The rotation of the milling cutter 4, 5 about the axis of rotation 21 running perpendicularly through the mounting plate can be brought about with the aid of the transverse adjusting cylinder 26. The closer functioning of this transverse adjustment by rotation is further clear from FIGS. 2 and 3. According to the position shown in FIG. 1, the working sides of the milling drum 4 and the grinding wheel 5 are visible with round shank chisels 27 on the drum 4 and diamond segments 28 on the drum 5. Furthermore, the position inclined relative to the floor surface 7 can be seen, which can be brought about by actuating the inclination adjusting cylinder 6 (pivoting of the mounting frame around the articulation point 3). Due to the inclined position shown, for example, the end face of the milling cutter 4, 5 facing the supporting structure 1 can be immersed approximately 4 cm in the material to be milled, while the opposite end face is at the same level with the floor surface. The immersion depth in the material to be milled can be adjusted by the depth adjusting cylinder 23 and / or the height adjusting cylinder 15, the first and / or the second-mentioned causes a movement of the milling cutter 4, 5 in a substantially vertical direction 29 with respect to the base 7. The height adjustment cylinder moves the guide carriage 18 along the vertical guide 12.

Beim Ausführungsbeispiel gemäß Fig. 2 ist die (hier durch den Winkelrahmen 25 verdeckte) Fräse mit deren Anbaurahmen 2 an der Stirnseite eines (schematisch angedeuteten) Trä­gerfahrzeugs 30 mit der Fahrtrichtung 31 angebracht. Zudem ist erkennbar, daß der Anbaurahmen 2 einen etwa einem Par­allelogramm ähnlichen Aufbau besitzt: die aus einem oder mehreren parallelen Holmen gebildete Horizontalführung 16 ist in weiteren Halterungsstegen 32 befestigt, welche sich dazu senkrecht erstrecken und jeweils senkrecht von einem der beiden Enden eines Aufnahmerahmens 33 vorspringen, der etwa parallel zur Horizontalführung 16 verläuft und deren Stabilisierung dient. Die durch den Haltebolzen 22 führende Drehachse 21 erstreckt sich gemäß Fig. 2 senkrecht zu deren Zeichenebene. Die drehbare Aufhängung ist im wesentlichen mittels kreisförmigen Führungsschlitzen 34 realisiert, wel­che durch im Winkelrahmen 25 und der darunter befindlichen Halterungsplatte 19 angebrachte, fluchtende Ausnehmungen gebildet sind. Die Radien der kreisförmigen Krümmungen der Führungsschlitze 34 kreuzen jeweils die Drehachse 21 etwa im Bereich des Haltebolzens 22. Die in Fig. 2 sichtbaren Köpfe der Führungsschrauben 24, an welchen die Fräse 4, 5 und/oder der Tiefenstellzylinder 23 aufgehängt sind, sind in den Führungsschlitzen gleitend verschiebbar aufgenommen; für die Verschiebung längs der vorgezeichneten, kreisförmi­gen Bahn sorgt der Querstellzylinder 26, dessen vom Aufnah­merahmen 33 abgewandtes Ende in einem dieser Führungs­schlitze aufgenommen ist und gemäß dem gezeichneten Bei­spiel längs eines Kreisbogens entsprechend 90° hin- und herführbar ist. Mithin werden Stellbewegungen 35 des Quer­ stellzylinders 26 in Drehbewegungen 36 für die Fräse umge­setzt, so daß deren Rotationsachse 20 in eine erste Lage 20a und eine demgegenüber um 90° versetzte zweite Lage 20b verstellt werden kann. Mithin kann bei Bewegung des Träger­fahrzeugs 30 in Fahrtrichtung 31 eine Vorwärtsfräsung oder bei Stillstand des Trägerfahrzeugs 30 und Stellbewegungen 37 des Schiebestellzylinders 17 eine Querfräsung senkrecht zur Fahrtrichtung 31 vorgenommen werden.In the exemplary embodiment according to FIG. 2, the milling cutter (here covered by the angular frame 25) with its mounting frame 2 is attached to the front side of a (schematically indicated) carrier vehicle 30 with the direction of travel 31. In addition, it can be seen that the mounting frame 2 has a structure approximately similar to a parallelogram: the horizontal guide 16 formed from one or more parallel spars is fastened in further mounting webs 32 which extend perpendicularly thereto and project perpendicularly from one of the two ends of a receiving frame 33 , which runs approximately parallel to the horizontal guide 16 and serves to stabilize it. The axis of rotation 21 leading through the holding bolt 22 extends perpendicular to the plane of the drawing according to FIG. 2. The rotatable suspension is essentially realized by means of circular guide slots 34, which are formed by aligned recesses made in the angle frame 25 and the mounting plate 19 located underneath. The radii of the circular curvatures of the guide slots 34 each intersect the axis of rotation 21 approximately in the region of the retaining bolt 22. The heads of the guide screws 24 visible in FIG Guide slots slidably received; for the displacement along the marked, circular path, the transverse actuating cylinder 26, whose end facing away from the receiving frame 33 is received in one of these guide slots and, according to the example shown, can be moved back and forth along a circular arc corresponding to 90 °. Consequently, adjusting movements 35 of the cross actuating cylinder 26 implemented in rotary movements 36 for the milling cutter, so that its axis of rotation 20 can be adjusted into a first position 20a and a second position 20b offset by 90 °. Thus, when the carrier vehicle 30 is moving in the direction of travel 31, forward milling is carried out, or when the carrier vehicle 30 is at a standstill and the actuating movements 37 of the sliding actuator cylinder 17, transverse milling is carried out perpendicular to the direction of travel 31.

In Fig. 3 sind den Fig. 1 und 2 entsprechende Teile mit denselben Bezugsziffern versehen. Gegenüber dem Ausfüh­rungsbeispiel nach Fig. 2 weist das nach Fig. 3 den Unter­schied auf, daß die Fräse mit Anbaurahmen 2 an der Längs­seite des Trägerfahrzeugs 30 mit der Fahrtrichtung 31 ange­bracht ist.In Fig. 3 parts corresponding to Figs. 1 and 2 are given the same reference numerals. Compared to the exemplary embodiment according to FIG. 2, this differs according to FIG. 3 in that the milling cutter with mounting frame 2 is attached to the longitudinal side of the carrier vehicle 30 with the direction of travel 31.

In Fig. 4 sind zur zeichnerischen Vereinfachung das Trag­werk 1 und der Anbaurahmen 2 nur grob angedeutet. In diesem Ausführungsbeispiel läßt sich die Tiefenverstellung der Frässchleifwalze 4, 5 mit Hilfe einer Drehspindel 47 wäh­rend des Arbeitsvorganges bewirken. Während des Fräsens kann die Fräse 4, 5 auf Rollen 414, welche auf die Spindel 47 aufgepreßt sind, laufen. Anstelle der Rollen 414 können auch Gleitkufen od. dgl. angebaut sein. Eine Lagerwelle 410 trägt die Frässchleifwalze 4, 5, zu welcher als kombinierte Einheit die Fräswalze 4 und die Schleifscheibe 5 zusammen­gefaßt sind. Die Fräswalze 4 ist auf der Lagerwelle 410 fest aufgeschraubt und wird von einem Hydraulikantriebsmo­tor 44 angetrieben und trägt als Arbeitswerkzeuge die Rund­schaftmeisel 27.In Fig. 4, the structure 1 and the mounting frame 2 are only roughly indicated to simplify the drawing. In this embodiment, the depth adjustment of the milling grinding roller 4, 5 can be effected by means of a rotating spindle 47 during the working process. During the milling, the milling machine 4, 5 can run on rollers 414 which are pressed onto the spindle 47. Instead of the rollers 414, skids or the like can also be attached. A bearing shaft 410 carries the milling grinding roller 4, 5, to which the milling roller 4 and the grinding wheel 5 are combined as a combined unit. The milling drum 4 is firmly screwed onto the bearing shaft 410 and is driven by a hydraulic drive motor 44 and carries the round shank 27 as working tools.

Die Schleifscheibe 5 ist auf der Lagerwelle 410 frei lau­fend gelagert. Sie trägt die Diamantsegmente 28 und wird mittels des weiteren Hydraulikmotors 43 im gezeichneten Beispiel über Keilriemen 38 angetrieben. Der Antrieb der Fräswalze 4 und der Schleifscheibe 5 sind somit getrennt, so daß deren Drehzahlen so gewählt werden können, daß die Umfangsgeschwindigkeiten der Arbeitswerkzeuge (Rundschaft­meisel 27 und Diamantsegmente 28) den vorherrschenden Be­triebsbedingungen angepaßt werden können. Insbes. sind die Drehrichtungen der Walze 4 und der Scheibe 5 einander ent­gegengesetzt.The grinding wheel 5 is freely supported on the bearing shaft 410. It carries the diamond segments 28 and is shown in the drawing by means of the further hydraulic motor 43 Example driven by V-belts 38. The drive of the milling drum 4 and the grinding wheel 5 are thus separated so that their speeds can be selected so that the peripheral speeds of the work tools (round shank chisel 27 and diamond segments 28) can be adapted to the prevailing operating conditions. Esp. the directions of rotation of the roller 4 and the disc 5 are opposite to each other.

Aus den Fig. 4 und 5 wird der geringe Abstand zwischen der Walze 4 und der Scheibe 5 deutlich, wodurch ein vollständi­ges Herausarbeiten der Materialebene 49 in einem Arbeits­gang möglich ist. Die Kante 45 bleibt während des Fräs­schleifens präzise gerade erhalten. Das in dem hochfesten Material eingebettete Korn 412 wird während des Fräsens nicht herausgeworfen, sondern gleichzeitig in einem Ar­beitsgang mittels der Scheibe 5 geschliffen. Ein präzises Anschließen der neuen Decke an die Kante 45 des alten Bela­ges ist nunmehr möglich.4 and 5, the small distance between the roller 4 and the disc 5 is clear, whereby a complete working out of the material plane 49 is possible in one operation. The edge 45 remains precisely straight during milling grinding. The grain 412 embedded in the high-strength material is not thrown out during milling, but is simultaneously ground in one operation by means of the disk 5. A precise connection of the new ceiling to the edge 45 of the old covering is now possible.

Die Schnittdarstellung gem. Fig. 6 zeigt die Arbeitsweise mittels der Fräswalze 4 mit größerem Durchmesser und ge­ringerer Breite, während in diesem Fall die im Durchmesser kleinere Schleifscheibe 5 wieder die gerade Kante 45 aus­schleift. Dies geschieht wieder in einem Arbeitsgang. Das Arbeiten mittels der beispielsweise im Durchmesser größeren Walze 4 ist für das Trennschneiden von Straßendecken bei Arbeitsbeginn im Tiefbaubereich und für das Wändeschneiden im Hochbausanierungsbereich od. dgl. nötig.The sectional view acc. 6 shows the method of operation by means of the milling drum 4 with a larger diameter and a smaller width, while in this case the grinding wheel 5, which is smaller in diameter, grinds out the straight edge 45 again. This happens again in one operation. Working by means of the roller 4, for example with a larger diameter, is necessary for the cutting of road surfaces at the start of work in the civil engineering area and for the wall cutting in the building renovation area or the like.

Claims (10)

1. Fräse, anbaubar an ein fahrbares Tragwerk, insbeson­dere Baumaschine, Unimog od. dgl., gekennzeichnet durch einen am Tragwerk (1) lösbar angebrachten An­baurahmen (2) mit einer parallel zu einer Längs- oder Querseite des Tragwerks (1) verlaufenden Horizontal­führung (16), längs welcher die Fräse (4,5) mittels eines Schiebestellorgans (17) relativ zum Tragwerk (1) schlittenähnlich hin- und herbewegbar ist.1. Milling machine, attachable to a mobile supporting structure, in particular a construction machine, Unimog or the like, characterized by a mounting frame (2) detachably attached to the supporting structure (1) with a horizontal guide parallel to a longitudinal or transverse side of the supporting structure (1) 16), along which the milling cutter (4, 5) can be moved back and forth in a sled-like manner by means of a sliding actuator (17) relative to the supporting structure (1). 2. Fräse nach Anspruch 1, dadurch gekennzeichnet, daß der Anbaurahmen (2) um eine zur Tragwerkseite paral­lelen, vorzugsweise horizontalen Achse schwenkbar an­gelenkt (3) ist, und daß dessen Schwenklage mittels eines Neigungsstellorgans (6) relativ zum Tragwerk (1) einstellbar ist.2. Milling machine according to claim 1, characterized in that the mounting frame (2) is pivotably articulated (3) about a parallel, preferably horizontal axis parallel to the supporting structure side, and that its pivoting position can be adjusted relative to the supporting structure (1) by means of a tilt actuator (6) . 3. Fräse nach Anspruch 1 oder 2, gekennzeichnet durch eine im Anbaurahmen (2) vorgesehene, zum Boden (7) gerichtete Vertikalführung (12), längs welcher die Fräse (4,5) mittels eines Höhenstellorgans (15) rela­tiv zum Tragwerk (1) auf und ab bewegbar ist.3. Milling machine according to claim 1 or 2, characterized by a vertical guide (12) provided in the mounting frame (2) and directed towards the floor (7), along which the milling machine (4, 5) is relative to the supporting structure (1) by means of a height adjusting member (15) ) can be moved up and down. 4. Fräse nach mindestens einem der Ansprüche 1 bis 3, gekennzeichnet durch ein Tiefenstellorgang (23), wel­ches an der Fräse (4,5) zu deren Tiefenverstellung gegenüber dem Bodenniveau (7) angreift.4. Milling machine according to at least one of claims 1 to 3, characterized by a depth adjusting gear (23) which acts on the milling machine (4, 5) to adjust its depth relative to the ground level (7). 5. Fräse nach mindestens einem der vorhergehenden An­sprüche, dadurch gekennzeichnet,, daß sie an einem mit der Horizontalführung (16) und ggf. der Vertikal­führung (12) verbundenen, verschiebbaren Schlitten (18) um eine zu der Rotationsachse (20) der Fräse etwa senkrechte Achse (21) drehbar aufgehängt ist, und daß die Drehstellung der Fräse mittels eines Querstellorgans (26) einstellbar ist.5. Milling cutter according to at least one of the preceding claims, characterized in that it on a with the horizontal guide (16) and possibly the vertical guide (12) connected, displaceable carriage (18) about one to the axis of rotation (20) of the milling cutter about vertical axis (21) is rotatably suspended, and that the rotary position of the milling cutter is adjustable by means of a transverse adjusting element (26). 6. Fräse nach Anspruch 5, dadurch gekennzeichnet, daß der Schlitten (18) eine bezüglich der Tragwerkseite auskragende, die Fräse 4,5) halternde Platte (19) mit ausgenommenen, zu deren senkrechter Drehachse (21) kreisbogenförmig verlaufenden Führungsschlitzen (34) aufweist, in welchen die Halterungselemente und/oder die Abstützstelle des Tiefenstellorgans (23) beweglich aufgenommen und mittels des Querstellorgans (26) relativ zur Horizontalführung (16) verschiebbar sind.6. Milling machine according to claim 5, characterized in that the slide (18) has a plate (19) with a cantilever with respect to the supporting structure, the milling machine 4, 5) with recessed guide slots (34) extending in a circular arc to the vertical axis of rotation (21) thereof , in which the holding elements and / or the support point of the depth control element (23) are movably received and can be displaced relative to the horizontal guide (16) by means of the cross control element (26). 7. Fräse nach mindestens einem der vorhergehenden An­sprüche, dadurch gekennzeichnet, daß die Horizontal­führung (16) im wesentlichen aus zwei parallelen, be­abstandeten Holmen (16a,16b) gebildet ist, auf welche jeweils wenigstens eine mit der Fräse (4,5) oder ggf. deren Führungsschlitten (18) ortsfest verbundene La­gerbuchse (40) längsverschiebbar sitzt.7. Milling cutter according to at least one of the preceding claims, characterized in that the horizontal guide (16) is essentially formed from two parallel, spaced-apart spars (16a, 16b), on each of which at least one with the milling cutter (4, 5) or, if necessary The guide carriage (18) of the fixedly connected bearing bush (40) is longitudinally displaceable. 8. Fräse nach mindestens einem der vorhergehenden An­sprüche, gekennzeichnet durch einen oder mehrere pneumatische oder vorzugsweise hydraulische, die Stellorgane entsprechend bildende Stellzylinder (6,15,17,23,26), wobei der Schiebestellzylinder (17) gegen die Horizontalführung (16) abgestützt ist und an der Fräse (4,5) oder ggf. dessen Schlitten (18) angreift, ggf. der Neigungsstellzylinder (6) gegen das Tragwerk (1) und an dem Anbaurahmen (2), ggf. der Höhenstellzylinder (15) gegen das Tragwerk (1), den Anbaurahmen (2) oder die Vertikalführung (12) und an der Fräse (4,5) oder dessen Schlitten (18), ggf. der Tiefenstellzylinder (23) gegen den Anbaurahmen (2) oder die Halterungsplatte (19) und an der Fräse (4,5), und ggf. der Querstellzylinder (26) gegen die Horizontalführung (16) und an der Fräse (4,5) jeweils abgestützt sind bzw. angreifen.8. Milling machine according to at least one of the preceding claims, characterized by one or more pneumatic or preferably hydraulic actuating cylinders (6, 15, 17, 23, 26) which form the actuators accordingly, the sliding actuating cylinder (17) being supported against the horizontal guide (16) and engages on the milling machine (4, 5) or its slide (18), if necessary, the inclination adjusting cylinder (6) against the supporting structure (1) and on the mounting frame (2), if necessary the height adjusting cylinder (15) against the Structure (1), the mounting frame (2) or the vertical guide (12) and on the milling cutter (4, 5) or its slide (18), if necessary the depth adjusting cylinder (23) against the mounting frame (2) or the mounting plate (19) and on the milling cutter (4, 5), and if necessary the transverse adjusting cylinder (26 ) are supported or attacked against the horizontal guide (16) and on the router (4, 5). 9. Fräse nach mindestens einem der vorhergehenden An­sprüche, dadurch gekennzeichnet, daß die Fräse eine Fräswalze (4) und eine Schleifscheibe (5) aufweist, welche auf einer gemeinsamen Welle (410) rotieren, wobei vorzugsweise die Fräswalze (4) starr und die Schleifscheibe (5) freilaufend auf der Welle (410) montiert sind, und beide unterschiedlich angetrieben sind.9. Milling cutter according to at least one of the preceding claims, characterized in that the milling cutter has a milling drum (4) and a grinding wheel (5) which rotate on a common shaft (410), the milling drum (4) preferably being rigid and the grinding wheel (5) are freely mounted on the shaft (410), and both are driven differently. 10. Fräse nach Anspruch 10, dadurch gekennzeichnet, daß die Walze und die Scheibe je mit einem Antriebsmotor (43,44), insbesondere Hydromotor, gekoppelt und von diesen in nach Betrag und/oder Vorzeichen unter­schiedlichen Winkelgeschwindigkeiten angetrieben sind.10. Milling machine according to claim 10, characterized in that the roller and the disk are each coupled to a drive motor (43, 44), in particular a hydraulic motor, and are driven by these in different angular speeds according to the amount and / or sign.
EP88116083A 1987-10-02 1988-09-29 Milling device to be affixed to a mobile apparatus Expired - Lifetime EP0310074B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116083T ATE76668T1 (en) 1987-10-02 1988-09-29 CUTTER ATTACHABLE TO MOBILE SUPPORT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873733352 DE3733352A1 (en) 1986-06-14 1987-10-02 Parallelogram guide frame
DE3733352 1987-10-02

Publications (3)

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EP0310074A2 true EP0310074A2 (en) 1989-04-05
EP0310074A3 EP0310074A3 (en) 1990-03-07
EP0310074B1 EP0310074B1 (en) 1992-05-27

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AT (1) ATE76668T1 (en)
DE (1) DE3871478D1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640299A1 (en) * 1988-12-09 1990-06-15 Alitec Corp PAVEMENT LEVELING MACHINE
FR2650006A1 (en) * 1989-07-20 1991-01-25 Prosign Sa Machine for making road markings (signals) and method of production of such road markings
FR2667086A1 (en) * 1990-09-24 1992-03-27 Trottoirnet Sa Vehicle for cleaning the ground and emptying waste bins, and suitable waste container
WO1992018698A1 (en) * 1991-04-12 1992-10-29 Alvhems Mekaniska I Älvängen Ab Device for trimming road-edges
FR2694720A1 (en) * 1992-08-14 1994-02-18 Thibaut Sa Automatic milling and polishing - consists of crosshead, moving on parallel rails, carrying machining head which moves along transverse support beams
US5415495A (en) * 1993-07-19 1995-05-16 Surface Preparation Technologies, Inc. Cutting machine and a method for its use
EP0665334A2 (en) * 1994-01-31 1995-08-02 Thomas Humme Milling machine and articulation
FR2838461A1 (en) * 2002-04-16 2003-10-17 Kurt Ramspeck Autonomous shot blaster for treatment of bituminous surfaces comprises chassis with driving and steering wheels fitted with surface treatment unit connected to suction unit and autonomous energy supply unit
CN102409601A (en) * 2011-09-19 2012-04-11 徐州徐工筑路机械有限公司 Foldable conveying device for milling machine
US20120212033A1 (en) * 2011-02-22 2012-08-23 Guy Bergeron Road Grinding Machine
CN107598697A (en) * 2017-10-25 2018-01-19 浙江坤鸿新材料有限公司 A kind of anti-kickplate pre-installation equipment
WO2020202024A1 (en) * 2019-04-02 2020-10-08 Simex S.R.L. Excavation equipment for an operating machine, and an operating machine comprising such equipment
IT202000025711A1 (en) 2020-10-29 2022-04-29 Simex S R L MILLING ASSEMBLY FOR MILLING A ROAD SURFACE OR SOIL
CN115075083A (en) * 2022-07-21 2022-09-20 中国极地研究中心(中国极地研究所) Snow powder construction process and device for polar ice and snow runway surface

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DE102015001735A1 (en) 2015-02-10 2016-08-11 Franz Bröhl Concrete and asphalt cutter for 100% removal of the edges

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DE3529632A1 (en) * 1985-08-19 1987-02-26 Reinhard Wirtgen Milling-roller mounting for milling machines for milling off roadway coverings
WO1987002398A1 (en) * 1985-10-16 1987-04-23 Rapitex (Highways) Limited A machine for treating a road surface or the like

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DE2000594A1 (en) * 1969-01-27 1970-07-30 Christensen Diamond Prod Co Device for roughening road surfaces
DE2040890B2 (en) * 1969-08-19 1977-06-08 Christensen Diamond Products Co., Salt Lake City, Utah (V.StA.) MACHINE FOR CUTTING GROOVES IN DRIVING ROOMS OR RUNWAY SURFACES
AT337757B (en) * 1971-09-22 1977-07-25 Klarcrete Ltd METHOD AND MACHINE FOR LEVELING ROAD SURFACES
US4262966A (en) * 1979-04-25 1981-04-21 Allied Steel & Tractor Products, Inc. Road surface removing machine
EP0133961A2 (en) * 1983-08-23 1985-03-13 Feichtner &amp; Bossert KG Device for removing markings from road surfaces
EP0142277A1 (en) * 1983-10-14 1985-05-22 Econ Group Limited Improvements relating to road planing equipment
DE3529632A1 (en) * 1985-08-19 1987-02-26 Reinhard Wirtgen Milling-roller mounting for milling machines for milling off roadway coverings
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640299A1 (en) * 1988-12-09 1990-06-15 Alitec Corp PAVEMENT LEVELING MACHINE
FR2650006A1 (en) * 1989-07-20 1991-01-25 Prosign Sa Machine for making road markings (signals) and method of production of such road markings
FR2667086A1 (en) * 1990-09-24 1992-03-27 Trottoirnet Sa Vehicle for cleaning the ground and emptying waste bins, and suitable waste container
WO1992018698A1 (en) * 1991-04-12 1992-10-29 Alvhems Mekaniska I Älvängen Ab Device for trimming road-edges
FR2694720A1 (en) * 1992-08-14 1994-02-18 Thibaut Sa Automatic milling and polishing - consists of crosshead, moving on parallel rails, carrying machining head which moves along transverse support beams
US5415495A (en) * 1993-07-19 1995-05-16 Surface Preparation Technologies, Inc. Cutting machine and a method for its use
EP0665334A2 (en) * 1994-01-31 1995-08-02 Thomas Humme Milling machine and articulation
EP0665334A3 (en) * 1994-01-31 1995-09-20 Thomas Humme Milling machine and articulation
FR2838461A1 (en) * 2002-04-16 2003-10-17 Kurt Ramspeck Autonomous shot blaster for treatment of bituminous surfaces comprises chassis with driving and steering wheels fitted with surface treatment unit connected to suction unit and autonomous energy supply unit
US20120212033A1 (en) * 2011-02-22 2012-08-23 Guy Bergeron Road Grinding Machine
CN102409601A (en) * 2011-09-19 2012-04-11 徐州徐工筑路机械有限公司 Foldable conveying device for milling machine
CN107598697A (en) * 2017-10-25 2018-01-19 浙江坤鸿新材料有限公司 A kind of anti-kickplate pre-installation equipment
WO2020202024A1 (en) * 2019-04-02 2020-10-08 Simex S.R.L. Excavation equipment for an operating machine, and an operating machine comprising such equipment
IT202000025711A1 (en) 2020-10-29 2022-04-29 Simex S R L MILLING ASSEMBLY FOR MILLING A ROAD SURFACE OR SOIL
CN115075083A (en) * 2022-07-21 2022-09-20 中国极地研究中心(中国极地研究所) Snow powder construction process and device for polar ice and snow runway surface
CN115075083B (en) * 2022-07-21 2024-06-04 中国极地研究中心(中国极地研究所) Snow powder construction process and device for polar region ice and snow runway surface

Also Published As

Publication number Publication date
DE3871478D1 (en) 1992-07-02
EP0310074A3 (en) 1990-03-07
ATE76668T1 (en) 1992-06-15
EP0310074B1 (en) 1992-05-27

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