EP2977514A1 - Soil cultivation machine and method for cutting soils or traffic surfaces - Google Patents
Soil cultivation machine and method for cutting soils or traffic surfaces Download PDFInfo
- Publication number
- EP2977514A1 EP2977514A1 EP15176984.1A EP15176984A EP2977514A1 EP 2977514 A1 EP2977514 A1 EP 2977514A1 EP 15176984 A EP15176984 A EP 15176984A EP 2977514 A1 EP2977514 A1 EP 2977514A1
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- EP
- European Patent Office
- Prior art keywords
- milling
- roller
- mixing
- flap
- roll
- 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
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- 239000002689 soil Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005520 cutting process Methods 0.000 title claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 106
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 5
- 239000003583 soil stabilizing agent Substances 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000003971 tillage Methods 0.000 abstract description 12
- 230000000284 resting effect Effects 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 16
- 238000009826 distribution Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 101100390736 Danio rerio fign gene Proteins 0.000 description 1
- 240000003517 Elaeocarpus dentatus Species 0.000 description 1
- 101100390738 Mus musculus Fign gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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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
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
- E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
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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
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
-
- 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 soil cultivation machine or a method for processing soil or traffic surfaces, in particular a cold recycler or soil stabilizer as a self-propelled machine or attachment according to the preamble of claim 1 or 10.
- Such tillage machines are used for material processing, namely, for example, the stabilization of unsuitable soils, the pulverization of asphalt floors, to the recycling of bonded or unbound road surfaces.
- material processing namely, for example, the stabilization of unsuitable soils, the pulverization of asphalt floors, to the recycling of bonded or unbound road surfaces.
- a powdered or liquid binder in the soil in order to increase its installation capacity and load capacity.
- the known tillage machines have a rotating in a mixing chamber milling / mixing roller, which is arranged vertically adjustable under a milling / mixing roller enclosing, fixed to the machine frame roller housing.
- the tillage machine may be self-propelled or an attachment. Examples of such machines are in the WO 96/24725 , of the WO 2005/054578 or the EP 2218823 A described.
- the necessary processes take place, adapted to the respective application, such as e.g. Mincing the soil, adding binders, mixing and distributing added materials.
- a known tillage machine as for example in Fig. 1 is shown, it is already known to provide front and rear pivotable roll flaps on the roll housing to limit the exit of the milled or to be mixed and / or comminuting material during the machining process.
- the position of the roller flaps is dependent on the task or the nature of the substrate and the desired work result.
- the grading curve ie the size distribution of the milled pieces of material can be influenced.
- the setting of the roller flaps takes place in a pivoting movement about a transverse to the working direction and parallel to the axis of the milling / mixing roller pivot axis.
- the swivel angle of the front roller flap is manually adjustable by the machine operator and remains substantially constant for the entire machining process.
- the roller flap is usually not on the ground.
- the invention is therefore an object of the invention to provide a tillage machine, and a method for milling floors and traffic areas, in which a reproducible crushing of the soil or the traffic area at different tasks and conditions can be achieved, in which the mean grain size of the fragments and the Width of the distribution can be influenced.
- roller flap is at least two parts and has at least one upper part and one lower part, wherein at least one part is pivotally and at least one further part telescopically linear or arcuately adjustable. Due to the extended adjustment of the roll flap can be improved by the flap position not only the average size of the fragments, but also the homogeneity of the size distribution and especially larger fragments are avoided in the milled.
- the division of the roll flap in at least two parts, in which one telescopically linear or arcuately adjustable and another is pivotable, allows the roll flap during the milling process, especially in variable positions of the milling drum within the roll housing always in an optimal for the respective working process distance from the Irrespective of whether the roller flap rests on the floor or not.
- adjustment of the front roller shutter is realized by a swing motion combined with a linear or arcuate movement.
- the invention is applicable not only to soil stabilizers and cold recyclers, but also to other construction machines having a milling drum in a milling drum housing, e.g. Road milling, Surface Miner, especially when the grading curve of the work result is important, the milling drum is height adjustable via the height adjustment of the machine frame.
- the pivoting angle and / or the position of the telescopically adjustable part of the roll flap depending on the current milling depth is controlled such that the distance between the roll flap and milling / mixing roller variably adjustable, z. B. minimized is.
- the distance of the lower part or the lower edge of the lower part of the milling / mixing roller of importance is controlled.
- the flexible adjustment of the roller flap makes it possible to reproducibly adjust the grading curve, ie the mean grain size and the grain size distribution of the milled material, over the arbitrary distance between the front roller flap and the milling / mixing roller.
- the current position of the roll flap, or the upper and lower part of the roll flap is detected by measurement to allow control of the positions.
- the pivot angle of the pivotable part and / or the position of the telescopically adjustable part of the roll flap depending on the current milling depth is adjustable so that the lower edge of the roll flap can be used as hold-down.
- the milling / mixing roller can gradually process and crush the larger debris and floes in the hold down position.
- a controller automatically controls the pivoting angle of the pivotable part of the roller flap and the position of the telescopically linearly or arcuately adjustable part, at least as a function of the current milling depth.
- an exchangeable breaker bar is arranged on the lower edge of the lower part.
- a plurality of juxtaposed, preferably evenly spaced, e.g. skid-shaped sliding shoes are arranged.
- Sliding shoes and breaker bar can also be used simultaneously, in particular can be attached to the lower end of the roller flap sliding shoes and projecting above the sliding blocks a breaker bar in the direction of the milling / mixing roller.
- the shoes can favor the breaking process, especially in runner shape, and z. B. limit the extent of the fragments in the transverse direction of the working direction. Material lying in front of the roller housing can enter the roller box through the clearances between the runners, even if this is guided over the floor as a hold-down device.
- the roller flap against the floor or traffic area with a predetermined contact pressure is pressed.
- the contact pressure can be applied by the weight or by a hydraulically variably adjustable pressure, for example.
- the upper part is pivotable and the lower part is telescopically linear or arcuately adjustable, wherein the lower part is adaptable to an existing in the ground bank or uneven ground relative to the upper part.
- the lower part can be in one or more parts and can be adapted to a possibly uneven ground surface or a milling track intentionally deviating from the horizontal.
- the milling / mixing roller is height-adjustable within the roller housing along a trajectory and that the control of the pivotal position of the pivotal part of the roller flap and / or the position of the telescopically linear or arcuately adjustable part depending on the depth of cut and the trajectory of the milling / mixing roller controls.
- Fig. 1 shows one from the WO 2005/054578 known tillage machine 1 for working lanes or stabilizing insufficiently sustainable floors 14, or recycling of road surfaces, with a cover layer 5 and an underlying support layer 7, with a supported by a chassis 2 machine frame 4.
- the chassis 2 has two rear and front wheels. 6 , 8, which are height-adjustable to lifting columns 12 are fixed and which can be raised and lowered independently or synchronously with each other. It is understood that instead of the wheels 6, 8, other drive means such as track tracks, may be provided.
- the lifting columns 12 are attached to the machine frame 4.
- Both suspension axles formed from the front and rear wheels 6, 8 can be steerable.
- a control station 10 On the machine frame 4 is above the front wheels 8 or in front of the front wheels 8 as in Fig. 1 and 2 a control station 10 arranged for an operator visible.
- control station 10 is arranged in front of the front wheels 8 or in front of the axles of the front wheels 8 and can be moved out beyond the outer machine boundary on at least one side of the machine.
- the milling / mixing roller 20 enclosing roller housing 28 may be fixedly hinged to the machine frame 4, so that a height adjustment of the roller housing 28 can be done solely by the lifting columns 12 for the wheels 6 and 8.
- the in the direction of travel 50 preferably in the counter-rotating milling / mixing roller 20, the axis of which extends transversely to the direction of travel, is mounted relative to the machine frame 4 pivotally about a pivot axis 34, so that they from a rest position, as in Fig. 1 shown in a milling position as in the other Fign. represented, with the help of both sides arranged pivot arms 42 is pivotable.
- Each pivot arm 42 is mounted at one end in the machine frame 4 and receives at its other end the storage of the milling / mixing roller 20.
- the milling / mixing roller 20 is, for example, with in Fig. 9 provided milling tools 22 provided to edit a floor or a traffic area 14 can.
- the roller housing 28 In operating position, the roller housing 28 rests on the floor surface 3 of the floor 14 to be machined, or is held a short distance from the floor 14, while the milling / mixing roller 20 is further down depending on the predetermined milling depth. In this case, a lateral boundary of the roller housing can be done by moving side plates. This results between the roller housing 28 and milling / mixing roller 20, a mixing chamber 24 with a variable, depending on the depth of cut mixing chamber volume.
- the mixing chamber volume can also be influenced by additional internally adjustable flaps in the roll housing, which basically consist of the DE 10 2010 050 831 are known.
- additives can be introduced, for example via a spray 18 and mixed with the milled material.
- the milling / mixing roller 20 has at its front and rear edge pivotable roller flaps 27,25.
- the front in the direction of travel 50 roll flap 27 is slightly raised in the prior art during operation, so that it does not rest on the ground, and the rear in the direction of travel 50 roll flap 25 can be used as a scraper blade.
- the maximum lowering of a non-rigidly fixed to the machine frame 4 roller housing 28 can be determined by a limiting device.
- roller housing 28 In such a roller housing 28 is therefore provided that this rests floating on the bottom surface 14.
- the roller housing 28 is fixedly attached to the machine frame 4, as already mentioned.
- FIGS. 2 and 3 each show a conventional solution with a front pivotable roll flap 27 which is pivotable about a parallel to the milling / mixing roll 20 pivot axis 38 on the roll housing 28.
- Fig. 2 shows the position of the milling / mixing roller 20 in the mixing chamber 24 at a low cutting depth
- Fig. 3 the position with a large milling depth. The different positioning results from the fact that the milling / mixing roller 20 is moved under the roller housing 28 along a trajectory 36, which is determined by the pivotal movement of the pivot arms 42 about the pivot axis 34.
- the distance A between the lower end of the roll flap 27 and the milling / mixing roll 20 is very different, so that in the case of a small cutting depth by milling in the opposite direction large clods and fragments of the cover layer 5 can break out.
- the floes and large debris captured by the milling / mixing roll 20 may exert undesirable forces on the milling / mixing roll 20 or on the roll housing 28. This can lead to increased wear, or reactions of the tillage machine are generated, which rock or raise the machine, so that the machining process is disturbed and the quality of the work result is impaired.
- there is the disadvantage that the homogeneity of the comminution of the milled material 16 is greatly impaired by the large fragments resulting from the breaking-up of clods.
- the problem is both with a large depth of cut and increases significantly in the case of a small depth of cut.
- Fig. 4 shows a first embodiment according to the invention, in which the roller flap 27 occupies a suitable position for soil stabilization.
- the roll flap 27 is designed at least in two parts and has in the Fig. 4 a pivotable upper part 30, which is pivotable about the pivot axis 38, and a linearly displaceable along the upper part 30 lower part 32.
- the upper part 30 and the lower part 32 need not necessarily be rectilinear, but may also have a cross-sectional shape adapted to the diameter of the milling / mixing roller 20.
- front roller flap 27 can be positioned differently with its lower edge or with its relative position to the milling / mixing roller 20 as a function of the milling depth or the position of the milling drum axis along the path curve 36.
- Fig. 5 shows the flap position of the front roller cap 27 in the case of a cold recycling process with large milling depth.
- the roller flap 27 is brought with its lower edge very close to the milling / mixing roller 20, wherein at the same time the lower edge of the lower part 32 rests on the cover layer 5. In this way, the lower edge of the lower part 32 can be used simultaneously as hold-down, whereby the risk of floe formation is additionally reduced.
- Fig. 6 shows an alternative embodiment in a cold recycling process, for example, with low depth of cut, in which the lower edge of the base 32 maintains a distance from the bottom surface 3, but at the same time the distance to the milling / mixing roller 20 is minimized.
- the penetration of larger fragments by the small distance between the roller flap 27 and the milling / mixing roller 20 is securely excluded, so that the size distribution of the fragments in the mixing chamber 24 is largely homogenized.
- FIGS. 5 and 6 By the embodiments of the FIGS. 5 and 6 is reliably excluded that larger fragments or clods may enter the mixing chamber 24 and the milling / mixing roller 20 or the roller housing 28 may damage or affect the milling process.
- Fig. 7 shows an alternative embodiment in which at the lower edge of the lower part 32 in addition a breaker bar 44 is arranged, which protrudes from the lower edge of the lower part 32 in the direction of the milling / mixing roller 20. Also in this case can be reliably prevented that larger fragments, which may occur in particular by the counter-milling, can enter the mixing chamber 24. Emerge larger fragments, they are prevented by the breaker bar 44 from entering the milling / mixing space, so that the milling / mixing roller 20 can gradually work them off before they can crushed enter the mixing chamber 24. Fragments of the milled material, which bounce against the bar from below, break at the breaker bar 44, so that it likewise contributes to the comminution.
- replaceable breaker bars 44 at the lower end of the roll door 27 is that they can be quickly and easily replaced, thereby improving the protection of the roll door 27 and the roll housing 28 from wear.
- Fig. 8 shows an embodiment in which the lower part 32 can be pivoted relative to the upper part 30 in order to adapt to current or permanent bumps.
- pivotable base 32 is also applicable in cases where the milling track is aware of the existing floor or traffic area 14, e.g. deviating from the horizontal, should be oblique.
- the position of the base 32 relative to the top 30 can be adjusted with piston-cylinder units 40.
- the piston-cylinder units 40 can make both the pivoting of the lower part 32 relative to the upper part 30, as well as the telescopic linear / arcuate adjustment.
- the piston-cylinder units 40 can also be used to press the lower part 32 with a predetermined contact pressure against the ground or the traffic surface 14.
- Fig. 9 shows a projecting in the direction of the milling / mixing roller 20 crusher bar 44 which projects from the lower part 32 and has a toothed outer contour.
- the outer contour is adapted to the line spacing of the tools 22 of the milling / mixing roller 20.
- the crusher bar 44 is flexibly adjustable due to the controllable roller flap 27, so that the engagement of the breaker bar 44 in the gaps between the tools 22 is adjustable in order to influence the grading curve in this way.
- the breaker bar 44 may also have other and in particular simpler forms, as in Fig. 7 shown, and does not have the in Fig. 9 have apparent toothed outer contour.
- Fig. 10 shows a further embodiment of the lower part, which is divided into a plurality of sub-elements 33.
- Each sub-element 33 is coupled with a piston-cylinder unit 40 with the upper part 30 of the roller flap 27, so that each sub-element 33 can be adjusted individually.
- Fig. 11 shows a piston-cylinder units 48 which are attached on the one hand to the roll flap 27 and the other on a mounting 52 of the machine frame 4. With the piston-cylinder units 48, the roll flap 27 can be pivoted, while with the piston-cylinder units 40, the lower part 32 relative to the upper part 30 can be adjusted.
- Fig. 11 further shows an embodiment in which 32 runner-like sliding shoes 46 are mounted on the underside of the lower part. These can also be pressed against the floor surface 3 or a traffic area. Material lying in front of the roller housing 27 can be moved through the free spaces between the rollers Sliding shoes 46 reach into the roller housing 27, even if this is guided as hold-down on the bottom surface 3.
Abstract
Bei einer Bodenbearbeitungsmaschine (1) zum Bearbeiten von Boden- oder Verkehrsflächen, insbesondere Kaltrecycler oder Bodenstabilisierer als selbstfahrende Maschine oder Anbaugerät, mit einem Maschinenrahmen (4), mit einer quer zur Arbeitsrichtung des Maschinenrahmens (4) rotierenden, Fräs-/Mischwalze (20), mit einem die Fräs-/Mischwalze (20) umschließenden, im Fräsbetrieb auf dem Boden (14) aufliegenden Walzengehäuse (28), das einen Mischraum (24) für die Zerkleinerung des Fräsgutes (16) und/oder die Durchmischung des Fräsgutes (16) mit Zusatzstoffen bildet, wobei die Fräs-/Mischwalze (20) zur Einstellung einer wählbaren Frästiefe höhenverstellbar ist, mit einer zumindest an dem in Arbeitsrichtung vorderen Ende Walzengehäuses (28) angeordneten schwenkbaren Walzenklappe (27), und mit einer Steuerung zumindest für den Bearbeitungsprozess, ist vorgesehen, dass die Walzenklappe (27) mindestens zweiteilig ist und mindestens ein Oberteil und ein Unterteil aufweist, wobei mindestens ein Teil schwenkbar und mindestens ein weiteres Teil teleskopartig linear oder bogenförmig verstellbar ist. Darüber hinaus gibt es auch ein Verfahren zum Bearbeiten von Boden- oder Verkehrsflächen mit einem Bodenbearbeitungsmaschine.In a soil tillage machine (1) for processing ground or traffic surfaces, in particular cold recycler or soil stabilizer as a self-propelled machine or attachment, with a machine frame (4), with a milling / mixing roller (20) rotating transversely to the working direction of the machine frame (4) with a milling / mixing roller (20) enclosing, in the milling operation on the bottom (14) resting roller housing (28) having a mixing space (24) for the comminution of the material to be milled (16) and / or the mixing of the material to be milled (16 ) with additives, wherein the milling / mixing roller (20) for adjusting a selectable cutting depth is adjustable in height, with a at least on the front end in the working direction roller housing (28) arranged pivotable roll flap (27), and with a control at least for the machining process , It is provided that the roller flap (27) is at least two parts and has at least one upper part and a lower part, wherein mi At least one part is pivotable and at least one other part telescopically linear or arcuately adjustable. In addition, there is also a method for processing ground or traffic surfaces with a tillage machine.
Description
Die Erfindung betrifft eine Bodenbearbeitungsmaschine bzw. ein Verfahren zum Bearbeiten von Boden- oder Verkehrsflächen, insbesondere einen Kaltrecycler oder Bodenstabilisierer als selbstfahrende Maschine oder Anbaugerät nach dem Oberbegriff des Anspruchs 1 bzw. 10.The invention relates to a soil cultivation machine or a method for processing soil or traffic surfaces, in particular a cold recycler or soil stabilizer as a self-propelled machine or attachment according to the preamble of
Derartige Bodenbearbeitungsmaschinen werden für die Materialaufbereitung, nämlich z.B. das Stabilisieren ungenügend tragfähiger Böden, das Pulverisieren von Asphaltdecken bis hin zum Recyceln von gebundenen oder ungebundenen Fahrbahnoberflächen verwendet. Zur Verbesserung oder Verfestigung von Böden ist es bekannt, ein pulverförmiges oder flüssiges Bindemittel in den Boden einzubringen, um dessen Einbaufähigkeit und Tragfähigkeit zu erhöhen. Die bekannten Bodenbearbeitungsmaschinen weisen eine in einem Mischraum umlaufende Fräs-/Mischwalze auf, die höhenverstellbar unter einem die Fräs-/Mischwalze umschließenden, am Maschinenrahmen befestigten Walzengehäuse angeordnet ist. Die Bodenbearbeitungsmaschine kann selbstfahrend sein oder ein Anbaugerät sein. Beispiele derartiger Maschinen sind in der
Hinsichtlich der Beschreibung der einzelnen Komponenten einer solchen Bodenbearbeitungsmaschine wird auf diese früheren Patentanmeldungen Bezug genommen.With regard to the description of the individual components of such a tillage machine, reference is made to these earlier patent applications.
In dem zwischen Walzengehäuse und Fräseinrichtung befindlichen Mischraum finden, angepasst an die jeweilige Anwendung, die notwendigen Prozesse statt, wie z.B. Zerkleinern des Bodenmaterials, Zugabe von Bindemitteln, Vermischen und Verteilen von zugesetzten Materialien.In the mixing space between the roller housing and the milling device, the necessary processes take place, adapted to the respective application, such as e.g. Mincing the soil, adding binders, mixing and distributing added materials.
Bei einer bekannten Bodenbearbeitungsmaschine, wie sie beispielsweise in
Bei dem erwähnten Stand der Technik ist nachteilig, dass die Fräs-/Mischwalze insbesondere im Gegenlaufbetrieb, bei dem die Fräs-/Mischwalze in Gegenrichtung zu der Umlaufrichtung der Räder oder Kettenlaufräder rotiert, aufgrund des Schichtaufbaus des Bodens bzw. der Verkehrsfläche, Schollen aus der Deckschicht herausbrechen kann.In the mentioned prior art is disadvantageous that the milling / mixing roller in particular in mating operation, in which the milling / mixing roller rotates in the opposite direction to the direction of rotation of the wheels or chain wheels, due to the layer structure of the ground or the traffic surface, clods from the Cover layer can break out.
Dies ist insbesondere deswegen nachteilig, weil eine gewünschte Zerkleinerung des vorhandenen Straßenbelags erschwert wird und dadurch einige übergroße Bruchstücke in das in dem Mischraum befindliche Fräsgut gelangen, so dass die Größenverteilung der gefrästen Fragmente inhomogen ist und nicht der gewünschten Korngrößenverteilung entspricht.This is particularly disadvantageous because a desired comminution of the existing road surface is difficult and thereby reach some oversized fragments in the milled material located in the mixing chamber, so that the size distribution of the milled fragments is inhomogeneous and does not correspond to the desired particle size distribution.
Darüber hinaus können große Bruchstücke, die von der Fräswalze erfasst werden, unerwünschte Kräfte auf die Fräs-/Mischwalze oder auf das Walzengehäuse ausüben. Dabei können Beschädigungen entstehen, oder Reaktionen der Bodenbearbeitungsmaschine erzeugt werden, die die Maschine aufschaukeln oder anheben, so dass der Bearbeitungsprozess gestört und die Qualität des Arbeitsergebnisses beeinträchtigt wird.In addition, large debris captured by the milling drum may exert undesirable forces on the milling / mixing roll or on the roll housing. This can cause damage or reactions of the tillage machine can be generated, which rock the machine or raise, so that the machining process is disturbed and the quality of the work result is impaired.
Aus der
Gemäß dem Stand der Technik ist der Schwenkwinkel der vorderen Walzenklappe durch den Maschinenbediener manuell einstellbar und bleibt im Wesentlichen für den gesamten Bearbeitungsprozesses konstant. Dabei liegt die Walzenklappe im Regelfall nicht auf dem Boden auf.According to the prior art, the swivel angle of the front roller flap is manually adjustable by the machine operator and remains substantially constant for the entire machining process. The roller flap is usually not on the ground.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Bodenbearbeitungsmaschine, sowie ein Verfahren zum Fräsen von Böden und Verkehrsflächen anzugeben, bei denen eine reproduzierbare Zerkleinerung des Bodens bzw. der Verkehrsfläche bei unterschiedlichen Arbeitsaufgaben und Rahmenbedingungen erreichbar ist, bei der die mittlere Korngröße der Bruchstücke und die Breite der Verteilung beeinflussbar ist.The invention is therefore an object of the invention to provide a tillage machine, and a method for milling floors and traffic areas, in which a reproducible crushing of the soil or the traffic area at different tasks and conditions can be achieved, in which the mean grain size of the fragments and the Width of the distribution can be influenced.
Zur Lösung dieser Aufgabe dienen die Merkmale der Ansprüche 1 und 10.To achieve this object, the features of
Die Erfindung sieht in vorteilhafter Weise vor, dass die Walzenklappe mindestens zweiteilig ist und mindestens ein Oberteil und ein Unterteil aufweist, wobei mindestens ein Teil schwenkbar und mindestens ein weiteres Teil teleskopartig linear oder bogenförmig verstellbar ist. Durch die erweiterte Einstellmöglichkeit der Walzenklappe kann durch die Klappenstellung nicht nur die mittlere Größe der Bruchstücke, sondern auch die Homogenität der Größenverteilung verbessert werden und insbesondere größere Bruchstücke im Fräsgut vermieden werden.The invention advantageously provides that the roller flap is at least two parts and has at least one upper part and one lower part, wherein at least one part is pivotally and at least one further part telescopically linear or arcuately adjustable. Due to the extended adjustment of the roll flap can be improved by the flap position not only the average size of the fragments, but also the homogeneity of the size distribution and especially larger fragments are avoided in the milled.
Die Aufteilung der Walzenklappe in mindestens zwei Teile, in denen eines teleskopartig linear oder bogenförmig verstellbar ist und ein anderes schwenkbar ist, erlaubt die Walzenklappe während des Fräsprozesses insbesondere bei veränderlichen Lagen der Fräswalze innerhalb des Walzengehäuses stets in einem für den jeweiligen Arbeitsprozess optimalen Abstand von der Fräswalze zu führen und zwar unabhängig davon, ob die Walzenklappe auf dem Boden aufliegt oder nicht. Im Resultat ist eine Einstellung der vorderen Walzenklappe über eine mit einer linearen oder bogenförmigen Bewegung kombinierte Schwenkbewegung verwirklicht.The division of the roll flap in at least two parts, in which one telescopically linear or arcuately adjustable and another is pivotable, allows the roll flap during the milling process, especially in variable positions of the milling drum within the roll housing always in an optimal for the respective working process distance from the Irrespective of whether the roller flap rests on the floor or not. As a result, adjustment of the front roller shutter is realized by a swing motion combined with a linear or arcuate movement.
Mit Hilfe der erfindungsgemäßen Walzenklappe gelangt nur Material in den Mischraum unter dem Walzengehäuse, das schon vor der Walzenklappe oder an der Walzenklappe durch deren flexible Positionierung ausreichend zerkleinert worden ist. Ein Rückstau innerhalb des Walzengehäuses kann nicht entstehen, so dass die Fräs-/Mischwalze im Mischraum ohne erhöhten Widerstand arbeiten kann.With the help of the roll flap according to the invention only material enters the mixing chamber under the roll housing, which has already been sufficiently shredded before the roll flap or on the roll flap by their flexible positioning. A backwater within the roller housing can not arise, so that the milling / mixing roller can work in the mixing chamber without increased resistance.
Die Erfindung ist nicht nur für Bodenstabilisierer und Kaltrecycler anwendbar, sondern auch für weitere Baumaschinen mit einer Fräswalze in einem Fräswalzengehäuse, z.B. Straßenfräsen, Surface Miner, insbesondere wenn die Sieblinie des Arbeitsergebnisses von Bedeutung ist, wobei die Fräswalze über die Höhenverstellung des Maschinenrahmens höhenverstellbar ist.The invention is applicable not only to soil stabilizers and cold recyclers, but also to other construction machines having a milling drum in a milling drum housing, e.g. Road milling, Surface Miner, especially when the grading curve of the work result is important, the milling drum is height adjustable via the height adjustment of the machine frame.
Vorzugsweise ist vorgesehen, dass der Schwenkwinkel und/oder die Position des teleskopartig verstellbaren Teils der Walzenklappe in Abhängigkeit der aktuellen Frästiefe derart steuerbar ist, dass der Abstand zwischen Walzenklappe und Fräs-/Mischwalze variabel einstellbar, z. B. minimiert, ist. Insbesondere ist der Abstand des Unterteils bzw. der Unterkante des Unterteils von der Fräs-/Mischwalze von Bedeutung. Die flexible Einstellung der Walzenklappe ermöglicht es, die Sieblinie, d.h. die mittlere Korngröße und die Korngrößenverteilung des gefrästen Materials über den beliebig wählbaren Abstand zwischen vorderer Walzenklappe und Fräs-/Mischwalze reproduzierbar einzustellen. Die aktuelle Position der Walzenklappe, bzw. des Ober- und Unterteils der Walzenklappe wird messtechnisch erfasst, um eine Steuerung der Positionen zu ermöglichen.It is preferably provided that the pivoting angle and / or the position of the telescopically adjustable part of the roll flap depending on the current milling depth is controlled such that the distance between the roll flap and milling / mixing roller variably adjustable, z. B. minimized is. In particular, the distance of the lower part or the lower edge of the lower part of the milling / mixing roller of importance. The flexible adjustment of the roller flap makes it possible to reproducibly adjust the grading curve, ie the mean grain size and the grain size distribution of the milled material, over the arbitrary distance between the front roller flap and the milling / mixing roller. The current position of the roll flap, or the upper and lower part of the roll flap is detected by measurement to allow control of the positions.
Bei einem bevorzugten Ausführungsbeispiel ist vorgesehen, dass der Schwenkwinkel des schwenkbaren Teils und/oder die Position des teleskopartig verstellbaren Teils der Walzenklappe in Abhängigkeit der aktuellen Frästiefe derart einstellbar ist, dass die Unterkante der Walzenklappe als Niederhalter verwendbar ist.In a preferred embodiment, it is provided that the pivot angle of the pivotable part and / or the position of the telescopically adjustable part of the roll flap depending on the current milling depth is adjustable so that the lower edge of the roll flap can be used as hold-down.
Die Walzenklappe erfüllt dabei als Niederhalter u. a. folgende Funktionen:
- Niederhalten der obersten Schicht bspw. eines Straßenaufbaus
- Verhindern des Ausbrechens von Schollen
- Verhindern des Einziehens von Bruchstücken oder Schollen in den Walzenkasten, wenn diese dennoch vorhanden sind, und
- Halten der Bruchstücke und Schollen in ihrer Position vor der Fräs-/Mischwalze.
- Holding down the topmost layer, for example of a road construction
- Preventing the breaking out of clods
- Preventing the breakage of debris or clods in the roll box, if they are still present, and
- Holding the debris and clods in position in front of the milling / mixing roller.
Die Fräs-/Mischwalze kann die größeren Bruchstücke und Schollen in der niedergehaltenen Position sukzessive abarbeiten und zerkleinern.The milling / mixing roller can gradually process and crush the larger debris and floes in the hold down position.
Vorzugsweise ist vorgesehen, dass eine Steuerung den Schwenkwinkel des schwenkbaren Teils der Walzenklappe und die Position des teleskopartig linear oder bogenförmig verstellbaren Teils zumindest in Abhängigkeit der aktuellen Frästiefe automatisch steuert.It is preferably provided that a controller automatically controls the pivoting angle of the pivotable part of the roller flap and the position of the telescopically linearly or arcuately adjustable part, at least as a function of the current milling depth.
Bei einer Weiterbildung der Erfindung ist vorgesehen, dass an der Unterkante des Unterteils eine austauschbare Brecherleiste angeordnet ist. Mit Hilfe der Brecherleiste kann ein größerer Abstand der Walzenklappe von der Fräs-/Mischwalze eingehalten werden, wobei die Brecherleiste verhindert, dass größere unzerkleinerte Bruchstücke in den Mischraum gelangen können.In a further development of the invention, it is provided that an exchangeable breaker bar is arranged on the lower edge of the lower part. With the help of the crusher bar, a greater distance of the roll flap from the milling / mixing roll be adhered to, the crusher bar prevents larger pieces of uncut crushed fragments can get into the mixing chamber.
Ferner kann vorgesehen sein, dass an der Unterkante des Unterteils mehrere nebeneinander angeordnete, vorzugsweise gleichmäßig beabstandete, z.B. kufenförmige Gleitschuhe angeordnet sind.Furthermore, it can be provided that at the lower edge of the lower part a plurality of juxtaposed, preferably evenly spaced, e.g. skid-shaped sliding shoes are arranged.
Gleitschuhe und Brecherleiste können auch gleichzeitig Verwendung finden, insbesondere können am unteren Ende der Walzenklappe Gleitschuhe befestigt sein und oberhalb der Gleitschuhe eine Brecherleiste in Richtung der Fräs-/Mischwalze abstehen.Sliding shoes and breaker bar can also be used simultaneously, in particular can be attached to the lower end of the roller flap sliding shoes and projecting above the sliding blocks a breaker bar in the direction of the milling / mixing roller.
Die Gleitschuhe können insbesondere in Kufenform den Brechvorgang begünstigen, und z. B. die Ausdehnung der Bruchstücke in Querrichtung der Arbeitsrichtung begrenzen. Vor dem Walzengehäuse liegendes Material kann durch die Freiräume zwischen den Kufen in den Walzenkasten gelangen, auch wenn dieser als Niederhalter über den Boden geführt wird.The shoes can favor the breaking process, especially in runner shape, and z. B. limit the extent of the fragments in the transverse direction of the working direction. Material lying in front of the roller housing can enter the roller box through the clearances between the runners, even if this is guided over the floor as a hold-down device.
Bei einem bevorzugten Ausführungsbeispiel ist vorgesehen, dass die Walzenklappe gegen den Boden oder Verkehrsfläche mit vorgegebenem Anpressdruck anpressbar ist. Auf diese Weise kann die Niederhaltefunktion der Walzenklappe verbessert werden. Der Anpressdruck kann durch das Eigengewicht oder durch einen beispielsweise hydraulisch variabel einstellbaren Druck aufgebracht werden.In a preferred embodiment, it is provided that the roller flap against the floor or traffic area with a predetermined contact pressure is pressed. In this way, the hold-down function of the roll flap can be improved. The contact pressure can be applied by the weight or by a hydraulically variably adjustable pressure, for example.
Bei einem Ausführungsbeispiel kann vorgesehen sein, dass das Oberteil schwenkbar ist und das Unterteil teleskopartig linear oder bogenförmig verstellbar ist, wobei das Unterteil an eine im Boden vorhandene Querneigung oder an Bodenunebenheiten relativ zu dem Oberteil anpassbar ist.In one embodiment, it may be provided that the upper part is pivotable and the lower part is telescopically linear or arcuately adjustable, wherein the lower part is adaptable to an existing in the ground bank or uneven ground relative to the upper part.
Das Unterteil kann einteilig oder mehrteilig sein und sich an eine ggf. unebene Bodenoberfläche oder eine absichtlich von der Horizontalen abweichende Frässpur anpassen.The lower part can be in one or more parts and can be adapted to a possibly uneven ground surface or a milling track intentionally deviating from the horizontal.
Es kann desweiteren vorgesehen sein, dass die Fräs-/Mischwalze innerhalb des Walzengehäuses entlang einer Bahnkurve höhenverstellbar ist und dass die Steuerung die Schwenkposition des schwenkbaren Teils der Walzenklappe und/oder die Position des teleskopartig linear oder bogenförmig verstellbaren Teils in Abhängigkeit der Frästiefe und der Bahnkurve des Fräs-/Mischwalze steuert.It can further be provided that the milling / mixing roller is height-adjustable within the roller housing along a trajectory and that the control of the pivotal position of the pivotal part of the roller flap and / or the position of the telescopically linear or arcuately adjustable part depending on the depth of cut and the trajectory of the milling / mixing roller controls.
Auf diese Weise kann unabhängig von der Lage der Fräswalze innerhalb des Walzengehäuses bzw. der Frästiefe stets ein optimaler Abstand zwischen der Walzenklappe und der Fräs-/Mischwalze eingehalten werden. Dies ist insbesondere von Bedeutung, wenn die Fräswalze innerhalb des Walzengehäuses entlang einer Bahnkurve höhenverstellt wird, da dadurch die Position der Fräs-/Mischwalze nicht nur in Höhenrichtung, sondern auch der horizontale Abstand zu den Walzenklappen, d.h. in Arbeitsrichtung verändert wird.In this way, regardless of the position of the milling drum within the roll housing or the milling depth always an optimal distance between the roll flap and the milling / mixing roll can be maintained. This is of particular importance when the milling drum is height-adjusted within the roller housing along a trajectory, as this causes the position of the milling / mixing roller not only in the height direction, but also the horizontal distance to the roller flaps, i. is changed in the working direction.
Die Flexibilität der Walzenklappe weist noch weitere Vorteile auf:
- Durch die verbesserte Beweglichkeit und Ansteuerbarkeit der Walzenklappe besteht darüber hinaus die Möglichkeit zur Optimierung bereits bekannter Arbeitsverfahren, beispielsweise zum Verschließen von Aushubvertiefungen im Boden, wie es in
der EP beschrieben ist.24 55 544 - Weiterhin kann nach Abschluss einer Fräsbearbeitung mit der flexibel steuerbaren Walzenklappe in Rückwärtsfahrt bei angehobener Fräs-/Mischwalze die Frässpur profiliert werden (gewünschte Seitenneigung, o. ä.).
- Mit einer zusätzlichen Verwendung von an die Walzenklappe gekoppelten Systemen zur Positionserfassung (bspw. GPS, o. ä.) kann hierbei eine exakte Positionierung der Walzenklappe zur Umsetzung baustellenspezifischer Vorgaben erfolgen.
- Due to the improved mobility and controllability of the roller flap, there is also the possibility of optimizing already known working methods, for example, for closing excavation recesses in the ground, as in the
EP 24 55 544 - Furthermore, after completing a milling operation with the flexibly controllable roll flap in reverse drive with raised milling / mixing roller, the milling track can be profiled (desired side inclination, o. Ä.).
- With an additional use of coupled to the roll flap systems for position detection (eg. GPS, o. Ä.) This can be done an exact positioning of the roll flap to implement site specific specifications.
Bei einem erfindungsgemäßen Verfahren zum Bearbeiten von Böden oder Verkehrsflächen mit einer Bodenbearbeitungsmaschine, insbesondere mit einem Kaltrecycler oder Bodenstabilisierer als selbstfahrende Maschine oder Anbaugerät,
- durch Einstellen der Frästiefe,
- durch Fräsen des Bodens mit einer höhenverstellbaren Fräs-/Mischwalze, und
- durch die Zerkleinerung des Fräsgutes und / oder Durchmischung des Fräsgutes mit Zusatzstoffen in einem Mischraum, der von einem die Fräs-/Mischwalze umgebenden Walzengehäuse gebildet wird,
- wobei mit zumindest einer in Arbeitsrichtung vorderen schwenkbaren Walzenklappe der Mischraum gegenüber dem Boden begrenzt wird,
- ist vorgesehen, dass eine Walzenklappe aus zumindest einem schwenkbaren Teil und einem teleskopartig linear oder bogenförmig verstellbaren Teil zum variablen Verändern des Mischraums verwendet wird.
- by adjusting the cutting depth,
- by milling the floor with a height-adjustable milling / mixing roller, and
- by comminuting the milled material and / or mixing the milled material with additives in a mixing chamber, which is formed by a roll housing surrounding the milling / mixing roller,
- wherein the mixing space is delimited with respect to the ground with at least one roller flap which can be pivoted in front in the working direction,
- it is provided that a roller flap of at least one pivotable part and a telescopically linear or arcuately adjustable part is used for variably changing the mixing space.
Im Folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.In the following, embodiments of the invention will be explained in more detail with reference to the drawings.
Es zeigen:
- Fig. 1
- eine gattungsgemäße Bodenbearbeitungsmaschine nach dem Stand der Technik,
- Fig. 2
- der Abstand der Walzenklappe von der Fräs-/Mischwalze bei geringer Frästiefe nach dem Stand der Technik,
- Fig. 3
- der Abstand der Walzenklappe von der Fräs-/Mischwalze bei großer Frästiefe nach dem Stand der Technik,
- Fig. 4
- das erfindungsgemäße Walzengehäuse im Betrieb als Bodenstabilisierer,
- Fig. 5
- das erfindungsgemäße Walzengehäuse im Kaltrecyclingbetrieb bei großer Frästiefe,
- Fig. 6
- ein zu dem Ausführungsbeispiel der
Fig. 5 alternatives Ausführungsbeispiel, - Fig. 7
- ein weiteres Ausführungsbeispiel mit Brecherleiste,
- Fig. 8
- eine Schwenkstellung des Unterteils der Walzenklappe relativ zu dem Oberteil,
- Fig. 9
- ein Ausführungsbeispiel mit profilierter Brecherleiste,
- Fig. 10
- eine Walzenklappe mit unterteiltem Unterteil, und
- Fig. 11
- eine Walzenklappe mit einem kufenförmigen Niederhalter.
- Fig. 1
- a generic soil cultivation machine according to the prior art,
- Fig. 2
- the distance of the roll flap from the milling / mixing roll at low milling depth according to the prior art,
- Fig. 3
- the distance of the roll flap from the milling / mixing roll at a large milling depth according to the prior art,
- Fig. 4
- the roller housing according to the invention in operation as a soil stabilizer,
- Fig. 5
- the roller housing according to the invention in cold recycling operation at a large milling depth,
- Fig. 6
- a to the embodiment of the
Fig. 5 alternative embodiment, - Fig. 7
- another embodiment with breaker bar,
- Fig. 8
- a pivoting position of the lower part of the roller flap relative to the upper part,
- Fig. 9
- an embodiment with profiled breaker bar,
- Fig. 10
- a roller flap with a divided lower part, and
- Fig. 11
- a roll flap with a skid-shaped hold-down.
Beide aus den vorderen bzw. hinteren Rädern 6,8 gebildeten Fahrwerksachsen können lenkbar sein.Both suspension axles formed from the front and
An dem Maschinenrahmen 4 ist über den Vorderrädern 8 oder vor den Vorderrädern 8 wie in
Bei dem Ausführungsbeispiel der
Das eine Fräs-/Mischwalze 20 einschließende Walzengehäuse 28 kann fest an dem Maschinenrahmen 4 angelenkt sein, so dass eine Höhenverstellung des Walzengehäuses 28 allein durch die Hubsäulen 12 für die Räder 6 und 8 erfolgen kann. Die sich in Fahrtrichtung 50 vorzugsweise im Gegenlauf drehende Fräs-/Mischwalze 20, deren Achse sich quer zur Fahrtrichtung erstreckt, ist relativ zu dem Maschinenrahmen 4 schwenkbar um eine Schwenkachse 34 gelagert, so dass sie von einer Ruheposition, wie in
Es ist auch ein Betrieb der Bodenbearbeitungsmaschine 1 in Rückfahrrichtung möglich, wobei dann ein Gleichlauffräsen erfolgt.It is also an operation of the
Die Fräs-/Mischwalze 20 ist beispielsweise mit in
In Betriebstellung liegt das Walzengehäuse 28 auf der zu bearbeitenden Bodenoberfläche 3 des Bodens 14 auf, oder wird in geringem Abstand vom Boden 14 gehalten, während die Fräs-/Mischwalze 20 je nach vorgegebener Frästiefe weiter nach unten verschwenkbar ist. Dabei kann eine seitliche Begrenzung des Walzengehäuses durch bewegliche Seitenschilder erfolgen. Dadurch ergibt sich zwischen Walzengehäuse 28 und Fräs-/Mischwalze 20 ein Mischraum 24 mit einem variablen, von der Frästiefe abhängigen Mischraumvolumen. Das Mischraumvolumen kann auch durch zusätzliche interne einstellbare Klappen im Walzengehäuse beeinflusst werden, die grundsätzlich aus der
Die maximale Absenkung eines nicht starr am Maschinenrahmen 4 befestigten Walzengehäuses 28 kann durch eine Begrenzungseinrichtung festgelegt werden.The maximum lowering of a non-rigidly fixed to the
Bei einem solchen Walzengehäuse 28 ist demzufolge vorgesehen, dass dieses schwimmend auf der Bodenoberfläche 14 aufliegt. Vorzugsweise ist das Walzengehäuse 28 allerdings wie bereits erwähnt fest an dem Maschinenrahmen 4 befestigt.In such a
Die
Das Problem besteht sowohl bei einer großen Frästiefe und verstärkt sich erheblich im Fall einer geringen Frästiefe.The problem is both with a large depth of cut and increases significantly in the case of a small depth of cut.
Auch wenn die Fräs-/Mischwalze 20 nicht entlang einer Bahnkurve 36, sondern lediglich vertikal innerhalb, oder gemeinsam mit dem Walzengehäuse 28 auf und ab bewegt wird, besteht das Problem der unterschiedlichen Abstände der Walzenklappe 27 zu der Fräs-/Mischwalze 20 und der damit nicht homogenen Größenverteilung der abgefrästen Bruchstücke aufgrund der Kreisgeometrie der Fräs-/Mischwalze 20.Even if the milling / mixing
Die Walzenklappe 27 ist mindestens zweiteilig ausgeführt und weist in der
Es versteht sich, dass das Oberteil 30 und das Unterteil 32 nicht zwangsläufig geradlinig sein müssen, sondern auch eine an den Durchmesser der Fräs-/Mischwalze 20 angepasste Querschnittsform aufweisen können.It is understood that the
Wesentlich ist, dass die vordere Walzenklappe 27 mit ihrer Unterkante bzw. mit ihrer relativen Position zur Fräs-/Mischwalze 20 in Abhängigkeit der Frästiefe bzw. der Position der Fräswalzenachse entlang der Bahnkurve 36 unterschiedlich positioniert werden kann.It is essential that the
Durch die Ausführungsbeispiele der
Der Vorteil austauschbarer Brecherleisten 44 an dem unteren Ende der Walzenklappe 27 besteht darin, dass sie schnell und einfach ausgetauscht werden können, wobei der Schutz der Walzenklappe 27 und des Walzengehäuses 28 vor Verschleiß verbessert wird.The advantage of replaceable breaker bars 44 at the lower end of the
Außerdem ist das verschwenkbare Unterteil 32 auch in den Fällen einsetzbar, in denen die Frässpur gegenüber dem existierenden Boden- oder Verkehrsfläche 14 bewusst, z.B. von der Horizontalen abweichend, schräg liegen soll.In addition, the
Die Position des Unterteils 32 relativ zu dem Oberteil 30 kann mit Kolben-Zylindereinheiten 40 eingestellt werden. Die Kolben-Zylindereinheiten 40 können sowohl die Verschwenkung des Unterteils 32 relativ zum Oberteil 30, als auch die teleskopartige lineare/bogenförmige Verstellung vornehmen.The position of the base 32 relative to the top 30 can be adjusted with piston-
Die Kolben-Zylindereinheiten 40 können auch dazu eingesetzt werden, das Unterteil 32 mit einem vorgegebenen Anpressdruck gegen den Boden oder die Verkehrsfläche 14 anzudrücken.The piston-
Es versteht sich, dass die unteren Enden der Kolben-Zylindereinheit 48 statt am Unterteil 32, wie in
Claims (15)
von Boden- oder Verkehrsflächen (14), insbesondere Kaltrecycler oder Bodenstabilisierer als selbstfahrende Maschine oder Anbaugerät,
mit einem Maschinenrahmen (4),
mit einer quer zur Arbeitsrichtung des Maschinenrahmens (4) rotierenden, Fräs-/Mischwalze (20), die zur Einstellung einer wählbaren Frästiefe höhenverstellbar ist,
mit einem die Fräs-/Mischwalze (20) umschließenden Walzengehäuse (28), das einen Mischraum (24) für die Zerkleinerung des Fräsgutes und/oder die Durchmischung des Fräsgutes mit Zusatzstoffen bildet, mit einer zumindest an dem in Arbeitsrichtung (50) vorderen Ende des Walzengehäuses (28) angeordneten schwenkbaren Walzenklappe (27), und mit einer Steuerung zumindest für den Bearbeitungsprozess, dadurch gekennzeichnet, dass
die Walzenklappe (27) mindestens zweiteilig ist und mindestens ein Oberteil (30) und ein Unterteil (32) aufweist, wobei mindestens ein Teil schwenkbar und mindestens ein weiteres Teil teleskopartig linear oder bogenförmig verstellbar ist.Soil cultivation machine (1) for processing
ground or traffic surfaces (14), in particular cold recyclers or soil stabilizers as self-propelled machines or attachments,
with a machine frame (4),
with a milling / mixing roller (20) rotating transversely to the working direction of the machine frame (4), which can be adjusted in height to set a selectable cutting depth,
with a milling / mixing roller (20) enclosing the roller housing (28) which forms a mixing chamber (24) for the comminution of the material to be milled and / or the mixing of the material to be milled with additives, with at least one in the working direction (50) front end the roller housing (28) arranged pivotable roller flap (27), and with a control at least for the machining process, characterized in that
the roller flap (27) is at least two parts and at least one upper part (30) and a lower part (32), wherein at least one part is pivotally and at least one further part telescopically linear or arcuately adjustable.
dadurch gekennzeichnet, dass
eine Walzenklappe (27) aus zumindest einem schwenkbaren Teil und zumindest einem teleskopartig linear oder bogenförmig verstellbaren Teil zum variablen Verändern des Mischraums (24) verwendet wird.
characterized in that
a roll flap (27) of at least one pivotable part and at least one telescopically linear or arcuately adjustable part is used for variably changing the mixing space (24).
Applications Claiming Priority (1)
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DE102014214436.1A DE102014214436A1 (en) | 2014-07-23 | 2014-07-23 | Soil cultivation machine, as well as methods for milling ground or traffic surfaces |
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EP2977514A1 true EP2977514A1 (en) | 2016-01-27 |
EP2977514B1 EP2977514B1 (en) | 2017-07-05 |
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EP15176984.1A Active EP2977514B1 (en) | 2014-07-23 | 2015-07-16 | Soil cultivation machine and method for cutting soils or traffic surfaces |
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US (2) | US9879392B2 (en) |
EP (1) | EP2977514B1 (en) |
CN (2) | CN105316995B (en) |
DE (1) | DE102014214436A1 (en) |
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CN105926413A (en) * | 2016-06-03 | 2016-09-07 | 河北扶波机械制造有限公司 | Hotin-place recycling engine for pavement |
IT202100010304A1 (en) * | 2021-04-22 | 2022-10-22 | Mci Infrastructures Eng S R L | SUB-STABILIZER: A SUPERSTRUCTURE REFURBISHMENT DEVICE FOR THE STRUCTURAL REDEVELOPMENT OF THE BASE AND/OR SUB-BASE AND/OR FOUNDATION AND/OR ANY OTHER LAYER OF THE EXISTING SUPERSTRUCTURE BY STABILIZATION OF THE SAME WITHOUT THE NEED TO REMOVE THE ABOVE STRUCTURE, PREFERABLY, IN BITUMINOUS/CEMENTITIOUS CONGLOMERATE |
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DE102018006688A1 (en) * | 2018-08-23 | 2020-02-27 | Bomag Gmbh | Soil milling machine and method for operating a soil milling machine |
DE102018222857A1 (en) * | 2018-12-21 | 2020-06-25 | Rema Tip Top Ag | Synchronization of conveyor and drive belt of a steep conveyor |
CN110258271A (en) * | 2019-06-24 | 2019-09-20 | 山推工程机械股份有限公司 | A kind of milling machine and its control method |
DE102019135225B4 (en) | 2019-12-19 | 2023-07-20 | Wirtgen Gmbh | Method for milling off traffic areas with a milling drum, and milling machine for carrying out the method for milling off traffic areas |
US11613856B2 (en) | 2020-04-14 | 2023-03-28 | Caterpillar Paving Products Inc. | Machine, system, and method for work cycle automation |
DE102021131906A1 (en) | 2021-12-03 | 2023-06-07 | Wirtgen Gmbh | Ground milling machine, in particular stabilizer or recycler, and method for operating a ground milling machine |
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2018
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IT202100010304A1 (en) * | 2021-04-22 | 2022-10-22 | Mci Infrastructures Eng S R L | SUB-STABILIZER: A SUPERSTRUCTURE REFURBISHMENT DEVICE FOR THE STRUCTURAL REDEVELOPMENT OF THE BASE AND/OR SUB-BASE AND/OR FOUNDATION AND/OR ANY OTHER LAYER OF THE EXISTING SUPERSTRUCTURE BY STABILIZATION OF THE SAME WITHOUT THE NEED TO REMOVE THE ABOVE STRUCTURE, PREFERABLY, IN BITUMINOUS/CEMENTITIOUS CONGLOMERATE |
Also Published As
Publication number | Publication date |
---|---|
US9879392B2 (en) | 2018-01-30 |
CN205529823U (en) | 2016-08-31 |
US10494778B2 (en) | 2019-12-03 |
EP2977514B1 (en) | 2017-07-05 |
US20160024728A1 (en) | 2016-01-28 |
DE102014214436A1 (en) | 2016-01-28 |
CN105316995A (en) | 2016-02-10 |
US20180202118A1 (en) | 2018-07-19 |
CN105316995B (en) | 2018-04-20 |
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