EP1197602B1 - Multi-purpose cutter-breaker apparatus - Google Patents

Multi-purpose cutter-breaker apparatus Download PDF

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Publication number
EP1197602B1
EP1197602B1 EP01124004A EP01124004A EP1197602B1 EP 1197602 B1 EP1197602 B1 EP 1197602B1 EP 01124004 A EP01124004 A EP 01124004A EP 01124004 A EP01124004 A EP 01124004A EP 1197602 B1 EP1197602 B1 EP 1197602B1
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EP
European Patent Office
Prior art keywords
crusher
cutting roller
strip
adjusting means
distance
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EP01124004A
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German (de)
French (fr)
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EP1197602A3 (en
EP1197602A2 (en
Inventor
Willi Jacobs
Michael Steinbrecher
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RICHTER, ANGELICA
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Individual
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    • 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

Definitions

  • the invention relates to a multipurpose Fräsbrecher, especially for road and road construction, with a driven, equipped with milling cutters milling drum and at least cooperating with the milling roller crusher bar, the distance from the milling drum is adjustable.
  • This Milling Crusher can be used in vehicles, such as road construction machinery or tractors, or stationary.
  • the Milling Crusher is a multi-purpose machine that can be used not only for reaming paving, picking and shredding packing but also for other purposes, e.g. for ammunition clearing of military properties, for soil preparation, soil mixing and forestry operations, e.g. as a forest mulcher. Furthermore, the machine can be used in riverbeds underwater for rock milling.
  • Another field of application is in the field of decontamination of oil contaminated soils, if they are stone-containing.
  • the well-known oil / soil separation in disk separators and similar centrifugal machines encounters difficulties when the earth is heavily rocky.
  • the oil and stone-containing soil material can be taken up and worked through with the cutting crusher according to the invention. The so treated soil material can then be decontaminated in a disc separator without significant wear.
  • a Fräsbrecher is known in which the rotating milling drum cooperates with a crusher bar, which is arranged on the circumferential track of the milling cutter. It is also mentioned that the width of the gap between the breaker bar and the milling drum can be adjustable so as to adjust the grain size of the fractured material. Further details about this adjustability were not given.
  • Milling crushers of the type described here primarily have the task of removing hard soil material, such as asphalt or concrete slabs, packing layer, rock by milling and then shred the milled material to a desired particle size, so that it may be immediately after admixture of aggregates and / Binder can be re-installed on the milled track.
  • the additives and / or the binder are applied to the surface to be renewed and distributed on the surface to be renewed, so that it is taken up and mixed together with the milled material.
  • the depth of cut can also be very different depending on the type and condition of the track to be renewed.
  • the present invention is therefore an object of the invention to provide a multipurpose Fräsbrecher, especially for road and road construction, regardless of the depth of cut and / or the height of the superimposed layer to be incorporated with the loose addition material secure breaking of the entire material a predetermined maximum grain size is achieved. Further advantages of the Fräsbrechers invention will become apparent from the following description.
  • the mentioned distance of the breaker bar in all these three cases refers to the upper side of the uppermost layer, ie the layer to be abraded in case a) or the loose resting layer in cases b) and c).
  • the adjustability of the distance of the breaker bar from the top of the uppermost layer gives the fourth factor influencing the grain size mentioned above under d), which must be taken into account in each milling / comminution problem. In this case, with increasing thickness of the detected material layer (milled layer and / or loosely applied layer), the distance of the breaker bar from the top of the layer should be increased.
  • the breaker bar is arranged on a carriage and its distance from the top of the material layer adjustable by acting on the carriage, supported on the frame or the side wall adjusting means adjustable.
  • the distance of the breaker bar from the top of the material layer, as well as the other three influencing factors a) to c) mentioned above, can be adjusted centrally and in coordination with these three factors.
  • the breaker bar is held on the carriage in a holder, are connected to the adjusting means for adjusting the distance from the milling drum.
  • These adjusting means set the gap width and thus in addition to the ground clearance another, the grain size determining factor.
  • these adjusting means have the purpose to track the crusher bar when changing their ground clearance the circumference of the milling drum. This can be achieved by two different embodiments.
  • the holder is mounted on a slider, which is linearly movable in the carriage by the adjusting means. Due to the two independent linear movements of the carriage and the slider, the independent adjustment of the ground clearance and the roller spacing of the breaker bar is possible.
  • the holder is in this case pivotally mounted on the slide about an axis parallel to the milling drum axis and arranged for damping the pivotal movement between the holder and the slider, an attenuator.
  • the pivot bearing of the holder is no longer used for employment of the crusher bar to the milling drum, but only to a certain cushioning of the bar against the collision shocks and overload protection, if non-breakable body should be included in the milled material. In this case, the holder can yield with the breaker bar and let the body pass despite oversize grain size.
  • the holder is pivotally mounted on the carriage about an axis parallel to the Fräswalzenachse axis and attached to mounted on the carriage adjusting means for adjusting its pivotal position.
  • the employment of the crusher bar to the roller for gap adjustment and / or for tracking the crusher bar when changing its ground level by adjusting the pivotal position takes place.
  • This design is expediently used when the milling drum is mounted between rockers and can be swung out below the bottom edge of the machine according to the desired milling depth.
  • this adjusting means also includes a damping element, which serves as well as the attenuator in the embodiment described above for cushioning and overload protection.
  • the multipurpose Fräsbrecher s the distances of the breaker bar from the milling drum and from the top of the material layer through the above, acting on the carriage actuating means by means of a sliding guide adjustable depending on each other.
  • This simplified version can be used when it comes only to the tracking of the breaker bar when changing the ground clearance.
  • all said actuating means are hydraulic servo motors.
  • the breaker bar has two wear strips arranged at an angle, which cooperate with the milling drum in one or the other direction of rotation.
  • the embodiment of the cutting crusher shown in FIG. 1 can be attached to a tractor (not shown), for example by means of links 1.
  • the cutting crusher essentially has a frame 2, two mutually parallel side walls 3, which are mutually displaceable by two telescopic guides 4,4 'in parallel position, and between the side walls 3, a Fräsbrecherwalze 5.
  • the roller is supported exchangeably on the side walls, as in detail will be described in more detail below.
  • each side wall 3 is provided with a slidably guided runner 17, which has an upwardly drawn Anformung 17 a in its central region.
  • Anformung 17 a a longitudinal recess 17 b is formed.
  • guide rails are attached to the side wall.
  • the blade 17 is therefore displaceable on the side wall 3 in the direction of the arrow 19.
  • hydraulic piston / cylinder unit 20 is arranged within the recess 17 b of the runner. Its cylinder is attached to the upper end of the side wall 3, while the lower end of its piston rod 20 a on a outside of the blade mounted tab 21 engages.
  • the skid 17 includes a second, parallel to the recess 17 b longitudinal recess 17 c for receiving the outside protruding hydraulic motor 16 of the Fräsbrecherwalze. 5
  • an aggregate A for holding the breaker bar 23 is provided, which is shown in simplified form in Figure 2.
  • the breaker bar 23 carries two wear strips 23 a , which cooperate with the Fräsbrecherwalze 5 in one or the other direction of rotation (Fig. 1).
  • the breaker bar 23 is held by a holder 24 in a direction parallel to the roll axis 5 a position.
  • the holder 24 is pivotable about the hinge axis 26 on a slider 25.
  • the slider 25 is linearly displaceable on a carriage 28 and adjustable by two piston / cylinder units 29, whereby the breaker bar 23 can be made more or less close to the roller 5.
  • the carriage 28 is parallel to the stroke direction 19 by the further actuating means performing hydraulic piston / cylinder unit 30 movable, which is suspended at 30 'to the frame 2.
  • An arranged between the holder 24 and the slide 25 damping cylinder 27 is used for overload protection and ensures that the crusher bar 23 can yield at ungerumbarbarem oversize grain and is not damaged.
  • the rear wall of the Fräsbrechers consists of two flaps 31,32.
  • the flap 31 is articulated in the hinge 33 and can be pivoted by means of the attached to the frame piston / cylinder unit 34 according to the arrow direction to the outside.
  • the flap 32 is hinged by means of hinge 35 on the flap 31 and can also be pivoted by the piston / cylinder unit 36 to the outside.
  • flaps 31,32 of the cutting crusher with appropriate placement and direction of rotation of the roller 5 when reversing (arrow 37) can be used as a mulcher in forestry.
  • the flap 31 may be provided with a funnel 38, through which the cutting crusher can be charged in stationary operation with material to be broken.
  • FIG 3 shows the second embodiment of the Fräsbrechers invention, in which the milling drum 5 is not mounted directly on the side walls 3, but between two rockers 40, which in turn are pivotally mounted in the region of a recess 3 a of the side wall about a hinge 42 on the side walls ,
  • the milling drum 5 supporting rockers 40 are guided on the side remote from the joint 42 edge 40 a in a mounted on the side wall guide 41.
  • a hydraulic piston / cylinder unit 43 is articulated on the side wall 3 and engages with its piston rod 43 a hinged to the rocker 40.
  • a lower roller position for the milling of a road surface 46 with loose material support 46 'and an upper roller position with opposite roller rotation when used as a forestry mulcher are indicated.
  • the unit A in the embodiment shown in Figure 3 differs from the unit shown in Figure 1 essentially in that the linear drives 29 are omitted and provided instead of the damping cylinder 27, a hydraulic piston / cylinder unit 44 with hydraulic piston detection and with a mechanical damping element 45 is.
  • the damping element 45 allows pivoting of the breaker bar about the axis 26 in the direction of the arrow 26 a , when the force acting on the breaker bar force exceeds a maximum value.
  • FIG. 3 corresponds to the embodiment according to FIG. In that regard, reference is made to the statements made to Figure 1.
  • FIGS. 1 and 3 the upper side 47 of the material layer (s) 46 'or 46 + 46' is shown, from which the ground clearance H of the breaker bar (its baffle surface) is to be measured.
  • the material layer thickness D to be detected by the roller 5 is in a positive relation to the ground clearance H, i. if D is larger, H is to be increased.
  • the cutting crusher roll 5 having an effective diameter d can grasp material layers having a thickness D of about 0.75 x d at most.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Road Repair (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Multipurpose breaker comprises a driven cutting roller (5) equipped with cutters and at least one breaker strip (23) interacting with the cutting roller. The distance between the breaker strip and the cutting roller is adjustable. The distance (H) between the breaker strip and the upper side (47) of the material layer (46') seized by the cutting roller is adjustable. Preferred Features: The breaker strip is arranged on a slide (28) and the distance from the upper side of the material layer is adjusted by positioning devices (30) engaging with the slide and supported on the side walls (3) or the stand (2).

Description

Die Erfindung betrifft einen Mehrzweck-Fräsbrecher, insbesondere für den Straßen- und Wegebau, mit einer angetriebenen, mit Fräsmeißeln bestückten Fräswalze und wenigstens mit der Fräswalze zusammenwirkenden Brecherleiste, deren Abstand von der Fräswalze einstellbar ist. Dieser Fräsbrecher kann in Fahrzeugen, wie Straßenbaumaschinen oder Schleppern, oder auch stationär zu Einsatz kommen. Der Fräsbrecher ist eine Mehrzweckmaschine, die nicht nur zum Abräsen von Straßendecken, Aufnehmen und Zerkleinern von Packlage, sondern auch für andere Zwecke eingesetzt werden kann, z.B. zum Munitionsberäumen militärischer Liegenschaften, zur Bodenaufbereitung, zum Bodenmischen und im Forstbetrieb, z.B. als Forstmulcher. Ferner kann die Maschine in Flußbetten unter Wasser zum Gesteinfräsen dienen. Ein weiteres Anwendungsgebiet liegt auf dem Gebiet der Dekontaminierung von ölverseuchten Böden, wenn diese steinhaltig sind. Die bekannte Öl/Erde-Trennung in Scheibenseparatoren und ähnlichen Zentrifugalmaschinen stößt dann auf Schwierigkeiten, wenn die Erde stark steinhaltig ist. In diesem Falle kann das öl- und steinhaltige Bodenmaterial mit dem erfindungsgemäßen Fräsbrecher aufgenommen und durchgearbeitet werden. Das so behandelte Erdmaterial kann dann in einem Scheibenseparator ohne wesentlichen Verschleiß dekontaminiert werden.The invention relates to a multipurpose Fräsbrecher, especially for road and road construction, with a driven, equipped with milling cutters milling drum and at least cooperating with the milling roller crusher bar, the distance from the milling drum is adjustable. This Milling Crusher can be used in vehicles, such as road construction machinery or tractors, or stationary. The Milling Crusher is a multi-purpose machine that can be used not only for reaming paving, picking and shredding packing but also for other purposes, e.g. for ammunition clearing of military properties, for soil preparation, soil mixing and forestry operations, e.g. as a forest mulcher. Furthermore, the machine can be used in riverbeds underwater for rock milling. Another field of application is in the field of decontamination of oil contaminated soils, if they are stone-containing. The well-known oil / soil separation in disk separators and similar centrifugal machines encounters difficulties when the earth is heavily rocky. In this case, the oil and stone-containing soil material can be taken up and worked through with the cutting crusher according to the invention. The so treated soil material can then be decontaminated in a disc separator without significant wear.

Aus DE 43 24 234 A1 ist ein Fräsbrecher bekannt, bei dem die rotierende Fräswalze mit einer Brecherleiste zusammenwirkt, die an der Umlaufspur der Fräsmeißel angeordnet ist. Dabei ist auch erwähnt, daß die Breite des Spaltes zwischen der Brecherleiste und der Fräswalze einstellbar sein kann, um so die Korngröße des gebrochenen Materials einzustellen. Nähere Einzelheiten über diese Einstellbarkeit wurden nicht angegeben.From DE 43 24 234 A1 a Fräsbrecher is known in which the rotating milling drum cooperates with a crusher bar, which is arranged on the circumferential track of the milling cutter. It is also mentioned that the width of the gap between the breaker bar and the milling drum can be adjustable so as to adjust the grain size of the fractured material. Further details about this adjustability were not given.

Aus DE-C-195 13 450 ist eine Bodenbearbeitungsvorrichtung mit einer Fräswalze und einer Brecherleiste bekannt, deren gegenseitiger Abstand durch Verschwenken der Brecherleiste veränderbar ist. Mit dem gegenseitigen Abstand ändert sich zwangsläufig immer auch der Abstand der Brecherleiste von der Bodenoberfläche.From DE-C-195 13 450 a tillage device with a milling drum and a crusher bar is known whose mutual distance is variable by pivoting the crusher bar. With the mutual distance inevitably always changes the distance of the breaker bar from the ground surface.

Fräsbrecher der hier beschriebenen Art haben in erster Linie die Aufgabe, hartes Bodenmaterial, wie Asphalt- oder Betondecken, Packlage, Gestein durch Abfräsen zu entfernen und das abgefräste Material anschließend auf eine gewünschte Korngröße zu zerkleinern, so daß es gegebenenfalls unmittelbar danach Zumischung von Zuschlagstoffen und/oder Bindemittel wieder auf der abgefrästen Strecke eingebaut werden kann. Dabei kann man so vorgehen, daß die Zuschlagstoffe und/oder das Bindemittel vor dem Abfräsen auf die zu erneuernde Fläche aufgebracht und auf dieser verteilt wird, so daß es zusammen mit dem abgefrästen Material aufgenommen und gemischt wird. Auch die Frästiefe kann je nach Art und Erhaltungszustand der zu erneuernden Bahn sehr unterschiedlich sein. Es hat sich nun gezeigt, daß der bekannte Fräsbrecher mit einstellbarer Spaltbreite zwischen Brecherleiste und Walze nicht in der Lage ist, bei den unterschiedlichen Aufgabestellungen, d.h. unterschiedlichen Frästiefen und/oder unterschiedlichen Höhen der aufliegenden Schicht, ein auf eine vorbestimmte Korngröße gebrochenes Material zu liefern. Häufig kommt es vor, daß abgefräste Teilchen nicht gebrochen werden und dieser Mangel auch durch Variation der Spaltbreite nicht behoben werden kann.Milling crushers of the type described here primarily have the task of removing hard soil material, such as asphalt or concrete slabs, packing layer, rock by milling and then shred the milled material to a desired particle size, so that it may be immediately after admixture of aggregates and / Binder can be re-installed on the milled track. In this case, it is possible to proceed in such a way that the additives and / or the binder are applied to the surface to be renewed and distributed on the surface to be renewed, so that it is taken up and mixed together with the milled material. The depth of cut can also be very different depending on the type and condition of the track to be renewed. It has now been found that the known cutting crusher with adjustable gap width between breaker bar and roller is not able, at the different task positions, i. different cutting depths and / or different heights of the overlying layer, to deliver a refracted to a predetermined grain size material. Often it happens that milled particles are not broken and this defect can not be resolved by varying the gap width.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Mehrzweck-Fräsbrecher, insbesondere für den Straßen- und Wegebau zu schaffen, mit dem unabhängig von der Frästiefe und/oder der Höhe der aufgelagerten Schicht des mit einzuarbeitenden losen Zugabematerials eine sichere Brechung des gesamten Materials auf eine vorbestimmte maximale Korngröße erreicht wird. Weitere Vorteile des erfindungsgemäßen Fräsbrechers ergeben sich aus der nachfolgenden Beschreibung.The present invention is therefore an object of the invention to provide a multipurpose Fräsbrecher, especially for road and road construction, regardless of the depth of cut and / or the height of the superimposed layer to be incorporated with the loose addition material secure breaking of the entire material a predetermined maximum grain size is achieved. Further advantages of the Fräsbrechers invention will become apparent from the following description.

Diese Aufgabe wird bei dem eingangs genannten Mehrzweck-Fräsbrecher erfindungsgemäß dadurch gelöst, daß der Abstand H der Brecherleiste von der Oberseite der von der Fräswalze erfaßten Materialschicht und der Abstand der Brecherleiste von der Fräswalze unabhängig einstellbar sind. Der Abstand H der Brecherleiste ist somit unabhängig von ihrem eingangs erwähnten Abstand von der Fräswalze oder den Umfangsspuren der Fräsmeißelspitzen einstellbar. Es wurde gefunden, daß die mit einem Fräsbrecher der eingangs genannten Art erreichbare Korngröße des abgefrästen, durchmischten und gebrochenen Materials von vier Faktoren abhängig ist, nämlich

  1. a) der Vorschubgeschwindigkeit der Fräswalze gegen die zu erfassende (d.h. abzufräsende und/oder lose aufliegende) Materialschicht,
  2. b) der Drehzahl der Fräswalze,
  3. c) dem Abstand der Brecherleiste von den von den Fräsmeißeln beschriebenen Umfangsspuren (= Walzenabstand), d.h. der in DE 43 24 234 A1 genannten Spaltbreite, und
  4. d) dem Abstand der Brecherleiste von der Oberseite der von der Fräswalze erfaßten Materialschicht (= Bodenabstand).
This object is achieved in the aforementioned multi-purpose Fräsbrecher invention, characterized in that the distance H of the breaker bar are independently adjustable from the top of the material layer detected by the milling drum and the distance of the breaker bar of the milling drum. The distance H of the breaker bar is thus independent of their aforementioned distance from the milling drum or the circumferential tracks of the Fräsmeißelspitzen adjustable. It has been found that the achievable with a Fräsbrecher of the type mentioned grain size of the milled, mixed and broken material is dependent on four factors, namely
  1. a) the feed rate of the milling drum against the material layer to be detected (ie to be milled and / or loosely placed),
  2. b) the speed of the milling drum,
  3. c) the distance of the breaker bar from the circumferential tracks described by the milling tools (= roll spacing), ie the gap width mentioned in DE 43 24 234 A1, and
  4. d) the distance of the breaker bar from the top of the material layer covered by the milling drum (= ground clearance).

Die "von der Fräswalze zu erfassende Materialschicht" kann

  1. a) eine abzufräsende Schicht alleine sein, die beispielsweise eine Deckschicht und/oder eine grobsteinige Packlage umfassen kann,
  2. b) eine abzufräsende Schicht wie unter a) und eine auf sie aufgebrachte, mit einzuarbeitende, lose Schicht sein, oder
  3. c) eine auf eine Unterlage lose aufgebrachte, verteilte Materialschicht alleine sein.
The "from the milling drum to be detected material layer" can
  1. a) be a abzufräsende layer alone, which may include, for example, a cover layer and / or a coarse-grained pack layer,
  2. b) a layer to be abraded, as under a) and a loose layer to be applied thereto, or
  3. c) be a loosely applied to a pad distributed material layer alone.

Der genannte Abstand der Brecherleiste bezieht sich in allen diesen drei Fällen auf die Oberseite der obersten Schicht, d.h. der abzufräsenden Schicht im Falle a) bzw. der losen aufliegenden Schicht in den Fällen b) und c). Durch die Einstellbarkeit des Abstands der Brecherleiste von der Oberseite der obersten Schicht erhält man den oben unter d) genannten vierten die Korngröße beeinflussenden Faktor, der bei jedem Fräs-/Zerkleinerungsproblem zu berücksichtigen ist. Dabei ist mit Zunahme der Dicke der erfaßten Materialschicht (abgefräste Schicht und/oder lose aufgebrachte Schicht) der Abstand der Brecherleiste von der Schichtoberseite zu vergrößern. Für jede zu verarbeitende Materialschicht ergibt sich ein bestimmter Bodenabstand der Brecherleiste mit optimaler Brecherwirkung, der versuchsmäßig schnell festgestellt werden kann, weil das Material dann ohne oder mit minimalem Stau den Spalt zwischen Brecherleiste und Fräswalze passiert. In dem Raum zwischen der Oberseite der Materialschicht und der Brecherleiste muß sich eine ausreichende Wurf- und Prallkinetik ausbilden können, damit zu große Teile an der Brecherleiste gebrochen werden. Wenn beispielsweise die Brecherleiste zu niedrig über der Oberseite der Materialschicht liegt, ist die Materialdichte in diesem Raum zu groß, so daß sich die für die Brechung erforderliche Kinetik nicht ausbilden kann.The mentioned distance of the breaker bar in all these three cases refers to the upper side of the uppermost layer, ie the layer to be abraded in case a) or the loose resting layer in cases b) and c). The adjustability of the distance of the breaker bar from the top of the uppermost layer gives the fourth factor influencing the grain size mentioned above under d), which must be taken into account in each milling / comminution problem. In this case, with increasing thickness of the detected material layer (milled layer and / or loosely applied layer), the distance of the breaker bar from the top of the layer should be increased. For everyone too processing material layer results in a certain ground clearance of the crusher bar with optimal crusher effect, which can be quickly determined experimentally, because the material then passes without or with minimal congestion, the gap between the breaker bar and milling drum. In the space between the top of the layer of material and the breaker bar sufficient throwing and impact kinetics must be formed so that too large parts are broken at the crusher bar. For example, if the breaker bar is too low above the top of the material layer, the material density in this space is too large, so that the kinetics required for the refraction can not form.

Bei der bevorzugten Ausführungsform des erfindungsgemäßen Fräsbrechers ist die Brecherleiste auf einem Schlitten angeordnet und ihr Abstand von der Oberseite der Materialschicht durch an dem Schlitten angreifende, an dem Gestell oder der Seitenwand abgestützte Stellmittel einstellbar. Der Abstand der Brecherleiste von der Materialschichtoberseite kann ebenso wie die anderen drei oben genannten Einflußfaktoren a) bis c) zentral und in Abstimmung mit diesen drei Faktoren eingestellt werden. Durch das Stellmittel ist der Schlitten und damit die Brecherleiste geradlinig verfahrbar. Die Verfahrrichtung kann senkrecht zur Materialschichtoberfläche oder (in Anpassung an die Ausfahrrichtung der Fräswalze) etwas zu dieser geneigt sein.In the preferred embodiment of the milling cutter according to the invention, the breaker bar is arranged on a carriage and its distance from the top of the material layer adjustable by acting on the carriage, supported on the frame or the side wall adjusting means adjustable. The distance of the breaker bar from the top of the material layer, as well as the other three influencing factors a) to c) mentioned above, can be adjusted centrally and in coordination with these three factors. By the adjusting means of the carriage and thus the crusher bar is moved in a straight line. The direction of travel can be inclined perpendicular to the material layer surface or (in adaptation to the extension direction of the milling drum) somewhat to this.

Vorzugsweise ist die Brecherleiste auf dem Schlitten in einem Halter gehalten, an dem Stellmittel zur Einstellung des Abstandes von der Fräswalze angeschlossen sind. Diese Stellmittel stellen die Spaltbreite und damit neben dem Bodenabstand einen anderen, die Korngröße bestimmenden Faktor ein. Außerdem haben diese Stellmittel den Zweck, die Brecherleiste bei Änderung ihres Bodenabstands dem Umfang der Fräswalze nachzuführen. Dies kann durch zwei unterschiedliche Ausführungsformen erreicht werden.Preferably, the breaker bar is held on the carriage in a holder, are connected to the adjusting means for adjusting the distance from the milling drum. These adjusting means set the gap width and thus in addition to the ground clearance another, the grain size determining factor. In addition, these adjusting means have the purpose to track the crusher bar when changing their ground clearance the circumference of the milling drum. This can be achieved by two different embodiments.

Bei einer Ausführungsform ist der Halter auf einem Schieber angebracht, der in dem Schlitten durch das Stellmittel linear verfahrbar ist. Durch die beiden unabhängigen Linearbewegungen des Schlittens und des Schiebers ist die unabhängige Einstellung des Bodenabstands und des Walzenabstands der Brecherleiste möglich. Zweckmäßigerweise ist der Halter hierbei auf dem Schieber um eine zur Fräswalzenachse parallele Achse schwenkbar gelagert und zur Dämpfung der Schwenkbewegung zwischen dem Halter und dem Schieber ein Dämpfungsglied angeordnet. Die Schwenklagerung des Halters dient nicht mehr zur Anstellung der Brecherleiste an die Fräswalze, sondern nur zu einer gewissen Abfederung der Leiste gegen die Prallstöße und zur Überlastsicherung, wenn nicht brechbare Körper in dem abgefrästen Material enthalten sein sollten. In diesem Falle kann der Halter mit der Brecherleiste nachgeben und die Körper trotz Überkorngröße passieren lassen.In one embodiment, the holder is mounted on a slider, which is linearly movable in the carriage by the adjusting means. Due to the two independent linear movements of the carriage and the slider, the independent adjustment of the ground clearance and the roller spacing of the breaker bar is possible. Conveniently, the holder is in this case pivotally mounted on the slide about an axis parallel to the milling drum axis and arranged for damping the pivotal movement between the holder and the slider, an attenuator. The pivot bearing of the holder is no longer used for employment of the crusher bar to the milling drum, but only to a certain cushioning of the bar against the collision shocks and overload protection, if non-breakable body should be included in the milled material. In this case, the holder can yield with the breaker bar and let the body pass despite oversize grain size.

Bei der anderen Ausführungsform des Fräsbrechers ist der Halter auf dem Schlitten um eine zur Fräswalzenachse parallele Achse schwenkbar gelagert und an auf dem Schlitten angebrachte Stellmittel zur Einstellung seiner Schwenklage angeschlossen. Hierbei erfolgt die Anstellung der Brecherleiste an die Walze zur Spalteinstellung und/oder zur Nachführung der Brecherleiste bei Veränderung seines Bodenahstands durch Verstellung der Schwenklage. Diese Ausführung kommt zweckmäßigerweise dann zur Anwendung, wenn die Fräswalze zwischen Schwingen gelagert und entsprechend der gewünschten Frästiefe unter die Bodenkante der Maschine ausschwenkbar ist. Vorzugsweise umfaßt dieses Stellmittel auch ein Dämpfungselement, das ebenso wie das Dämpfungsglied bei der zuvor beschriebenen Ausführungsform zur Abfederung und Überlastsicherung dient.In the other embodiment of the Fräsbrechers the holder is pivotally mounted on the carriage about an axis parallel to the Fräswalzenachse axis and attached to mounted on the carriage adjusting means for adjusting its pivotal position. In this case, the employment of the crusher bar to the roller for gap adjustment and / or for tracking the crusher bar when changing its ground level by adjusting the pivotal position takes place. This design is expediently used when the milling drum is mounted between rockers and can be swung out below the bottom edge of the machine according to the desired milling depth. Preferably, this adjusting means also includes a damping element, which serves as well as the attenuator in the embodiment described above for cushioning and overload protection.

Bei einer nicht erfindungsgemäßen Ausführungsform des Mehrzweck-Fräsbrechers sind die Abstände der Brecherleiste von der Fräswalze und von der Oberseite der Materialschicht durch das oben genannte, am Schlitten angreifende Stellmittel mittels einer Kulissenführung voneinander abhängig einstellbar. Diese vereinfachte Ausführung kann zum Einsatz kommen, wenn es nur auf die Nachführung der Brecherleiste bei Änderung des Bodenabstands ankommt.In a non-inventive embodiment of the multipurpose Fräsbrechers the distances of the breaker bar from the milling drum and from the top of the material layer through the above, acting on the carriage actuating means by means of a sliding guide adjustable depending on each other. This simplified version can be used when it comes only to the tracking of the breaker bar when changing the ground clearance.

Zweckmäßigerweise sind alle genannten Stellmittel hydraulische Stellmotore.Conveniently, all said actuating means are hydraulic servo motors.

Vorzugsweise hat die Brecherleiste zwei unter einem Winkel angeordnete Verschleißleisten, die mit der Fräswalze in der einen oder anderen Drehrichtung zusammenwirken.Preferably, the breaker bar has two wear strips arranged at an angle, which cooperate with the milling drum in one or the other direction of rotation.

Die Erfindung wird nachfolgend an Hand der Zeichnung näher beschrieben. Es zeigen

  • Figur 1 eine erste Ausführungsform des Mehrzweck-Fräsbrechers in der Seitenansicht und teilweise im Schnitt;
  • Figur 2 eine schematische Aufsicht des Aggregats zur Halterung und Bewegungssteuerung der in Figur 1 dargestellten Brecherleiste; und
  • Figur 3 eine zweite Ausführungsform des Mehrzweck-Fräsbrechers in der Seitenansicht und teilweise im Schnitt.
The invention will be described in more detail with reference to the drawing. Show it
  • Figure 1 shows a first embodiment of the multipurpose Fräsbrechers in the side view and partly in section;
  • Figure 2 is a schematic plan view of the unit for holding and movement control of the crusher bar shown in Figure 1; and
  • Figure 3 shows a second embodiment of the multipurpose Fräsbrechers in the side view and partly in section.

Die in Figur 1 gezeigte Ausführungsform des Fräsbrechers kann beispielsweise mittels Lenkern 1 an einem Schlepper (nicht dargestellt) angebracht werden. Der Fräsbrecher hat im wesentlichen ein Gestell 2, zwei zueinander parallele Seitenwände 3, die durch zwei Teleskopführungen 4,4' in Parallellage zueinander verschiebbar sind, und zwischen den Seitenwänden 3 eine Fräsbrecherwalze 5. Die Walze ist an den Seitenwänden austauschbar gehaltert, wie im einzelnen weiter unten näher beschrieben wird.The embodiment of the cutting crusher shown in FIG. 1 can be attached to a tractor (not shown), for example by means of links 1. The cutting crusher essentially has a frame 2, two mutually parallel side walls 3, which are mutually displaceable by two telescopic guides 4,4 'in parallel position, and between the side walls 3, a Fräsbrecherwalze 5. The roller is supported exchangeably on the side walls, as in detail will be described in more detail below.

Bei der Ausführungsform nach Figur 1 ist jede Seitenwand 3 mit einer verschieblich geführten Kufe 17 ausgestattet, die in ihrem mittleren Bereich eine nach oben gezogene Anformung 17a aufweist. In der Anformung 17a ist eine Längsaussparung 17b gebildet. Beiderseits der Längsaussparung 17b sind an der Seitenwand 3 Führungsschienen angebracht. Die Kufe 17 ist daher an der Seitenwand 3 in Richtung des Pfeils 19 verschiebbar. Innerhalb der Aussparung 17b der Kufe ist ferner eine als Stellmittel dienende hydraulische Kolben/Zylindereinheit 20 angeordnet. Ihr Zylinder ist am oberen Ende an der Seitenwand 3 angebracht, während das untere Ende ihrer Kolbenstange 20a an einer außenseitig an der Kufe angebrachten Lasche 21 angreift. Wie ersichtlich enthält die Kufe 17 eine zweite, zur Aussparung 17b parallele Längsaussparung 17c zur Aufnahme des außenseitig vorstehenden Hydraulikmotors 16 der Fräsbrecherwalze 5.In the embodiment of Figure 1, each side wall 3 is provided with a slidably guided runner 17, which has an upwardly drawn Anformung 17 a in its central region. In the Anformung 17 a , a longitudinal recess 17 b is formed. On both sides of the longitudinal recess 17 b 3 guide rails are attached to the side wall. The blade 17 is therefore displaceable on the side wall 3 in the direction of the arrow 19. Within the recess 17 b of the runner also serving as an actuating means hydraulic piston / cylinder unit 20 is arranged. Its cylinder is attached to the upper end of the side wall 3, while the lower end of its piston rod 20 a on a outside of the blade mounted tab 21 engages. As can be seen, the skid 17 includes a second, parallel to the recess 17 b longitudinal recess 17 c for receiving the outside protruding hydraulic motor 16 of the Fräsbrecherwalze. 5

In dem Raum zwischen den beiden Seitenwänden 3 ist ein Aggregat A zur Halterung der Brecherleiste 23 vorgesehen, das in Figur 2 vereinfacht gezeigt ist. Die Brecherleiste 23 trägt zwei Verschleißleisten 23a, die mit der Fräsbrecherwalze 5 in der einen bzw. der anderen Drehrichtung zusammenwirken (Fig. 1). Die Brecherleiste 23 wird durch einen Halter 24 in einer zur Walzenachse 5a parallelen Lage gehalten. Der Halter 24 ist auf einem Schieber 25 um die Gelenkachse 26 schwenkbar. Der Schieber 25 ist auf einem Schlitten 28 linear verschieblich und durch zwei Kolben/Zylindereinheiten 29 verstellbar, wodurch die Brecherleiste 23 mehr oder weniger dicht an die Walze 5 angestellt werden kann. Der Schlitten 28 ist parallel zur Hubrichtung 19 durch die ein weiteres Stellmittel darstellende hydraulische Kolben/Zylindereinheit 30 verfahrbar, die bei 30' an dem Gestell 2 aufgehängt ist. Ein zwischen dem Halter 24 und dem Schieber 25 angeordneter Dämpfungszylinder 27 dient zur Überlastsicherung und gewährleistet, daß die Brecherleiste 23 bei unzerkleinerbarem Überkorn nachgeben kann und nicht beschädigt wird.In the space between the two side walls 3, an aggregate A for holding the breaker bar 23 is provided, which is shown in simplified form in Figure 2. The breaker bar 23 carries two wear strips 23 a , which cooperate with the Fräsbrecherwalze 5 in one or the other direction of rotation (Fig. 1). The breaker bar 23 is held by a holder 24 in a direction parallel to the roll axis 5 a position. The holder 24 is pivotable about the hinge axis 26 on a slider 25. The slider 25 is linearly displaceable on a carriage 28 and adjustable by two piston / cylinder units 29, whereby the breaker bar 23 can be made more or less close to the roller 5. The carriage 28 is parallel to the stroke direction 19 by the further actuating means performing hydraulic piston / cylinder unit 30 movable, which is suspended at 30 'to the frame 2. An arranged between the holder 24 and the slide 25 damping cylinder 27 is used for overload protection and ensures that the crusher bar 23 can yield at ungerumbarbarem oversize grain and is not damaged.

Nach Figur 1 besteht die Rückwand des Fräsbrechers aus zwei Klappen 31,32. Die Klappe 31 ist in dem Scharnier 33 angelenkt und kann mittels der am Gestell angebrachten Kolben/Zylindereinheit 34 entsprechend der Pfeilrichtung nach außen geschwenkt werden. Die Klappe 32 ist mittels Scharnier 35 auf der Klappe 31 angelenkt und kann durch die Kolben/Zylindereinheit 36 ebenfalls nach außen geschwenkt werden. Bei auf diese Weise ausgeschwenkten Klappen 31,32 kann der Fräsbrecher bei entsprechender Bestückung und Drehrichtung der Walze 5 bei Rückwärtsfahrt (Pfeilrichtung 37) im Forstbetrieb als Mulcher eingesetzt werden. Die Klappe 31 kann mit einem Trichter 38 versehen sein, durch den der Fräsbrecher im stationären Betrieb mit zu brechenden Material beschickt werden kann.According to Figure 1, the rear wall of the Fräsbrechers consists of two flaps 31,32. The flap 31 is articulated in the hinge 33 and can be pivoted by means of the attached to the frame piston / cylinder unit 34 according to the arrow direction to the outside. The flap 32 is hinged by means of hinge 35 on the flap 31 and can also be pivoted by the piston / cylinder unit 36 to the outside. When swung out in this way flaps 31,32 of the cutting crusher with appropriate placement and direction of rotation of the roller 5 when reversing (arrow 37) can be used as a mulcher in forestry. The flap 31 may be provided with a funnel 38, through which the cutting crusher can be charged in stationary operation with material to be broken.

Figur 3 zeigt die zweite Ausführungsform des erfindungsgemäßen Fräsbrechers, bei der die Fräswalze 5 nicht direkt an den Seitenwänden 3 gelagert ist, sondern zwischen zwei Schwingen 40, die ihrerseits im Bereich einer Aussparung 3a der Seitenwand um ein Gelenk 42 an den Seitenwänden schwenkbar gelagert sind. Die die Fräswalze 5 tragenden Schwingen 40 sind an dem von dem Gelenk 42 entfernten Rand 40a in einer an der Seitenwand angebrachten Führung 41 geführt. Eine hydraulische Kolben/Zylindereinheit 43 ist an der Seitenwand 3 angelenkt und greift mit ihrer Kolbenstange 43a gelenkig an der Schwinge 40 an. In Figur 3 sind eine untere Walzenstellung für das Abfräsen einer Straßendecke 46 mit loser Materialauflage 46' und eine obere Walzenstellung mit entgegengesetzter Walzendrehrichtung bei Einsatz als Forstmulcher angedeutet.Figure 3 shows the second embodiment of the Fräsbrechers invention, in which the milling drum 5 is not mounted directly on the side walls 3, but between two rockers 40, which in turn are pivotally mounted in the region of a recess 3 a of the side wall about a hinge 42 on the side walls , The milling drum 5 supporting rockers 40 are guided on the side remote from the joint 42 edge 40 a in a mounted on the side wall guide 41. A hydraulic piston / cylinder unit 43 is articulated on the side wall 3 and engages with its piston rod 43 a hinged to the rocker 40. In Figure 3, a lower roller position for the milling of a road surface 46 with loose material support 46 'and an upper roller position with opposite roller rotation when used as a forestry mulcher are indicated.

Das Aggregat A bei der in Figur 3 gezeigten Ausführungsform unterscheidet sich von dem in Figur 1 gezeigten Aggregat im wesentlichen dadurch, daß die Linearantriebe 29 entfallen sind und anstelle des Dämpfungszylinders 27 eine hydraulische Kolben/Zylindereinheit 44 mit hydraulischer Kolbenfeststellung und mit einem mechanischen Dämpfungselement 45 vorgesehen ist. Das Dämpfungselement 45 ermöglicht das Schwenken der Brecherleiste um die Achse 26 in Richtung des Pfeils 26a, wenn die auf die Brecherleiste wirkende Kraft einen Maximalwert überschreitet.The unit A in the embodiment shown in Figure 3 differs from the unit shown in Figure 1 essentially in that the linear drives 29 are omitted and provided instead of the damping cylinder 27, a hydraulic piston / cylinder unit 44 with hydraulic piston detection and with a mechanical damping element 45 is. The damping element 45 allows pivoting of the breaker bar about the axis 26 in the direction of the arrow 26 a , when the force acting on the breaker bar force exceeds a maximum value.

Im übrigen stimmt die in Figur 3 gezeigte Ausführungsform mit der Ausführungsform nach Figur 1 überein. Insoweit wird auf die zu Figur 1 gemachten Ausführungen verwiesen.Otherwise, the embodiment shown in FIG. 3 corresponds to the embodiment according to FIG. In that regard, reference is made to the statements made to Figure 1.

In den Figuren 1 und 3 ist die Oberseite 47 der Materialschicht(en) 46' bzw. 46+46' eingezeichnet, von der der Bodenabstand H der Brecherleiste (ihrer Prallfläche) zu messen ist. Die von der Walze 5 zu erfassende Materialschichtdicke D steht in einer positiven Relation zu dem Bodenabstand H, d.h. bei größerem D ist H zu vergrößern. Im allgemeinen kann die Fräsbrecherwalze 5 mit einem wirksamen Durchmesser d (über die Spitzen der Fräsmeißel 5' gemessen) Materialschichten mit einer Dicke D von etwa maximal 0,75·d erfassen.In FIGS. 1 and 3, the upper side 47 of the material layer (s) 46 'or 46 + 46' is shown, from which the ground clearance H of the breaker bar (its baffle surface) is to be measured. The material layer thickness D to be detected by the roller 5 is in a positive relation to the ground clearance H, i. if D is larger, H is to be increased. In general, the cutting crusher roll 5 having an effective diameter d (measured over the tips of the cutting tools 5 ') can grasp material layers having a thickness D of about 0.75 x d at most.

Claims (10)

  1. Multi-purpose cutter-crusher, particularly for the construction of highways and roads, comprising a driven cutting roller equipped with cutting bits, and at least one crusher strip cooperating with the cutting roller, the distance of said crusher strip from said cutting roller being adjustable, characterized in that with each definite cutting depth the distance H of the crusher strip (23) from the surface (47) of the material layer (46,46') bitten by the cutting roller (5) and the distance of the crusher strip (23) from the cutting roller (5) are independently adjustable.
  2. Multi-purpose cutter-crusher according to claim 1, characterized in that the crusher strip (23) is arranged on a carriage (28) and its distance from the surface (47) of the material layer can be adjusted by adjusting means (30) acting at the carriage (28), said adjusting means (30) being supported at the side walls (3) of the machine frame (2) of the cutter-crusher.
  3. Multi-purpose cutter-crusher according to claims 2, characterized in that the crusher strip (23) is supported on said carriage (28) in a holder (24) having connected adjusting means (29;44) for adjusting the distance from the cutting roller (5).
  4. Multi-purpose cutter-crusher according to claim 3, characterized in that the holder (24) is mounted on a slide (25) adapted to be linearly displaced in the carriage (28) by the adjusting means (29).
  5. Multi-purpose cutter-crusher according to claim 4, characterized in that the holder (24) is supported on the slide (25) for swivel motion about an axis (26) parallel to the axis (5a) of the cutting roller (5), and a damping element (27) is arranged between the holder (24) and the slide (25) for dampening the swivel motion.
  6. Multi-purpose cutter-crusher according to claim 3, characterized in that the holder (24) on said carriage (28) is adapted to be swivelled about an axis (26) parallel to the axis (5a) of the cutting roller and is connected to adjusting means (44) mounted on the carriage (28) for adjusting its swivel position.
  7. Multi-purpose cutter-crusher according to claim 6, characterized in that the adjusting means (44) comprises a dampening element (45).
  8. Multi-purpose cutter-crusher according to claim 2, characterized in that the distances of the crusher strip (23) from the cutting roller (5) and from the surface (47) of the material layer (46,46') are adapted to be adjusted dependent on each other by the adjusting means (30) via a connecting link guide.
  9. Multi-purpose cutter-crusher according to claim 2 and 3, respectively, characterized in that the adjusting means (30,29,44) are hydraulic servomotors.
  10. Multi-purpose cutter-crusher according to anyone of the claims 1 to 9, characterized in that the crusher strip (23) comprises two wearing strips (23a) angularly arranged to each other and cooperating with the cutting roller (5) in the one and in the other sense of rotation, respectively.
EP01124004A 2000-10-12 2001-10-09 Multi-purpose cutter-breaker apparatus Expired - Lifetime EP1197602B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10050398A DE10050398C2 (en) 2000-10-12 2000-10-12 Multi-purpose cutter-crusher
DE10050398 2000-10-12

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EP1197602A2 EP1197602A2 (en) 2002-04-17
EP1197602A3 EP1197602A3 (en) 2002-12-18
EP1197602B1 true EP1197602B1 (en) 2006-12-27

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AT (1) ATE349573T1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158438A (en) * 2019-07-09 2019-08-23 台州市椒江预提自动化设备有限公司 A kind of dustless slot-cutting machine of bituminous pavement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2852260B1 (en) * 2003-03-10 2007-05-04 STONE MILL WITH MOBILE HOOK
DE202009015190U1 (en) 2009-11-09 2010-03-25 Steinbrecher, Michael Multi-purpose cutter-crusher
DE102009052269A1 (en) 2009-11-09 2011-05-26 Michael Steinbrecher Multi-purpose cutter-crusher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850375A (en) * 1974-01-11 1974-11-26 F Ford Mobile shredder
US5190398A (en) * 1991-03-12 1993-03-02 Swisher Jr George W Apparatus for preparing a road bed
DE4324234A1 (en) * 1993-07-20 1995-01-26 Willi Jacobs Milling breaker
DE19513450C1 (en) * 1994-12-20 1996-04-18 Wolfgang Steiner Cultivator for soil conditioning
DE19504495A1 (en) * 1995-02-12 1996-08-22 Wirtgen Gmbh Road surface renewal machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158438A (en) * 2019-07-09 2019-08-23 台州市椒江预提自动化设备有限公司 A kind of dustless slot-cutting machine of bituminous pavement
CN110158438B (en) * 2019-07-09 2021-06-08 千易建设集团有限公司 Dustless grooving machine for asphalt pavement

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ES2278671T3 (en) 2007-08-16
DE10050398C2 (en) 2003-05-15
EP1197602A3 (en) 2002-12-18
EP1197602A2 (en) 2002-04-17
DE10050398A1 (en) 2002-05-02
ATE349573T1 (en) 2007-01-15
DE50111721D1 (en) 2007-02-08

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