EP2578749A2 - Boîtier de rotor pour un dispositif de fraisage destiné au traitement de sol, dispositif de fraisage et procédé de nettoyage d'un boîtier de rotor - Google Patents

Boîtier de rotor pour un dispositif de fraisage destiné au traitement de sol, dispositif de fraisage et procédé de nettoyage d'un boîtier de rotor Download PDF

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Publication number
EP2578749A2
EP2578749A2 EP20120005494 EP12005494A EP2578749A2 EP 2578749 A2 EP2578749 A2 EP 2578749A2 EP 20120005494 EP20120005494 EP 20120005494 EP 12005494 A EP12005494 A EP 12005494A EP 2578749 A2 EP2578749 A2 EP 2578749A2
Authority
EP
European Patent Office
Prior art keywords
rotor housing
cleaning strip
cleaning
rotor
milling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20120005494
Other languages
German (de)
English (en)
Other versions
EP2578749B1 (fr
EP2578749A3 (fr
Inventor
Helmut Rötsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP2578749A2 publication Critical patent/EP2578749A2/fr
Publication of EP2578749A3 publication Critical patent/EP2578749A3/fr
Application granted granted Critical
Publication of EP2578749B1 publication Critical patent/EP2578749B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/45—Portable apparatus for preparing, or for preparing and applying to the road, compound liquid binders, e.g. emulsified bitumen, fluxed asphalt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/219—Guards
    • Y10T74/2191—Guards for rotary member

Definitions

  • the invention relates to a rotor housing for a milling device for tillage, in particular for a road milling machine, a recycler or a stabilizer.
  • the rotor housing has an interior open to the floor for receiving a milling rotor, comprising two side walls, a front wall and a rear wall, the side walls, the front wall and the rear wall bounding the interior of the rotor housing to the outside.
  • the invention further relates to a milling device for soil cultivation, in particular road milling machine, recycler or stabilizer, with such a rotor housing, and a method for cleaning a rotor housing of adhering in the interior of the rotor housing soil material.
  • Generic milling devices are commonly used in road and road construction.
  • road milling machines are used concretely for milling off an existing road surface requiring remediation, recyclers and stabilizers for comminuting and / or mixing the soil material, for example with binding agents.
  • Such milling devices can be designed as self-propelled machines or else as trailer elements, for example for attachment to a tractor.
  • the working apparatus of such milling devices is a milling rotor, which is usually a hollow cylindrical body, which is equipped on its outside with milling tools, such as chisels. In the working mode, the milling rotor lowered into the ground rotates and mills soil material, for example.
  • the milling rotor is usually arranged transversely to the direction of travel of the milling device lying on the milling device and rotated, depending on the operating mode, in or against the working direction.
  • To the outside of the milling rotor is usually surrounded by the rotor housing, for example, to mix the milled material with a binder and / or prevent the flying around of milled material and / or to allow a controlled material removal from the milling area.
  • the rotor housing is thus a milling rotor upwards, to the sides and in and against the working direction surrounding device.
  • the rotor housing is designed to be open towards the bottom, so that the milling rotor can engage with the soil to be processed.
  • adhesions and / or soil materials which are generally referred to below as adhesions, frequently result in the nozzle of the spray device clogging and reliable fluid and / or bitumen supply being no longer guaranteed. In addition, this can significantly affect the mixing results.
  • a plunger assembly in each nozzle is specified.
  • this solution achieves sufficient cleaning results only in the case of slight adhesions and is virtually ineffective in the case of extreme contamination.
  • this arrangement is relatively complicated and costly to manufacture and maintain, finally, a separate plunger assembly is required for each nozzle, and also directed specifically to the cleaning of the nozzle opening itself.
  • the object of the invention is to provide a way as accumulated in the rotor housing attachments can be removed as inexpensively, reliably and in a short time.
  • a cleaning device arranged in the interior of the rotor housing is provided with a cleaning strip movable at least partially relative to the rotor housing, the rotor housing furthermore having at least one passage opening via which impacts and / or shaking movements from outside the rotor housing onto the cleaning strip can be applied.
  • the term "rotor housing” refers to that device by means of which a housing of the milling rotor is provided.
  • the side walls are those housing parts of the rotor housing, which are arranged on the end faces of the milling rotor, i. in the axial direction of the axis of rotation of the milling rotor in front of and behind the milling rotor.
  • the front wall is the part of the rotor housing, which einhaust the milling rotor in the working direction up to the height of the axis of rotation relative to a vertical plane along the axis of rotation of the milling rotor.
  • the rear wall is corresponding to that part of the rotor housing which surrounds the milling rotor counter to the working direction from the axis of rotation of the milling rotor or adjoins the front wall counter to the working direction.
  • the presently designated wall elements must be correspondingly not plan formed, but may for example include three-dimensional deformations, such as hood-like bulges, a plurality of angularly juxtaposed wall segments, etc. It is important that the rotor housing in its entirety provides an at least almost complete housing with a recess to the bottom for the milling rotor.
  • An essential element of the rotor housing according to the invention is a cleaning device.
  • the cleaning device is generally designed in such a way that accumulations (soils and / or soil material) accumulated in the interior of the rotor housing can be removed.
  • the central element of the cleaning device according to the invention is a cleaning strip.
  • the cleaning strip is arranged in the interior of the rotor housing and at least partially movable relative to the rotor housing. The cleaning strip can thus be moved, for example, at least in a partial area relative to the wall elements of the rotor housing (side walls, front wall and rear wall), which includes, for example, in addition to pivoting in particular also bending movements of the cleaning strip.
  • the rotor housing has at least one passage opening, can be applied by the blows and / or Rüttelmosen from outside the rotor housing on the cleaning strip.
  • the cleaning strip can thus be excited from outside the rotor housing to the relative movements, for example, bending movements, so that no costly dismantling of the rotor housing and / or removal of the milling rotor for cleaning purposes is more necessary.
  • the space requirement of the cleaning device according to the invention is extremely low, in particular with respect to the interior of the rotor housing.
  • the cleaning strip is arranged flat against the inner surface of the rotor housing and swings or bends at an impact with shocks and / or Studttelioloen from outside the rotor housing through the at least one passage at least partially into the interior of the rotor housing.
  • the cleaning strip thus does not claim a significant proportion of the interior of the rotor housing, so that a transfer of the invention to existing rotor housing is readily possible.
  • the cleaning strip is therefore connected to the rotor housing in an edge region, in particular a longitudinal edge region of the cleaning strip.
  • the longitudinal edge region of the cleaning strip is the edge region along one of the longitudinal sides of the cleaning side, ie one of the sides of the cleaning strip, which is longer than the two adjoining the longitudinal side sides of the cleaning strip.
  • the part of the cleaning strip bordering the longitudinal edge region over the longitudinal side of the cleaning strip in particular of the 25% and 20% of the total width of the cleaning strip.
  • sufficient storage stability and on the other hand, the cleaning strip relative to the rotor housing in the longitudinal edge region, which faces away from the connection point to the rotor housing, be sufficiently moved relative to the rotor housing to obtain the desired cleaning effect .
  • a punctiform connection along the longitudinal edge region or the use of several adjacent in one direction connection points for example, a nearly complete connection of the longitudinal edge region with the rotor housing is possible.
  • a cleaning strip which consists of spring steel, allows reliable cleaning results even over very long periods of time.
  • Spring steel also has a particularly high strength and elastic properties in a certain area.
  • the arrangement of the cleaning strip within the rotor housing may vary. Depending on the soil material and / or design of the rotor housing, sufficient cleaning results can already be obtained, for example, if the cleaning strip extends over a range of, for example, at least 50%, preferably at least 70%, with respect to the axial width of the rotor housing. However, optimum results are obtained when the cleaning strip extends over almost the entire width of the rotor housing. In this embodiment, it is ensured that the cleaning function achieved with the cleaning strip extends over the entire width of the rotor housing.
  • the cleaning strip is formed segmented, comprising in particular at least two along the width of the rotor housing immediately adjacent to each other arranged cleaning strip segments.
  • the width of the rotor housing is the extent of the rotor housing in the axial direction of the milling rotor, that is usually in the horizontal direction transversely to the working direction of the milling device.
  • Typical rotor housings may have, for example, widths of> 1 m, in particular> 1.5 m to> 2 m.
  • several cleaning strip segments which are adjacent to one another in the axial direction or across the width of the rotor housing and, if possible, are simpler in terms of installation and maintenance to obtain uniform cleaning results, in particular directly adjacent to each other are arranged.
  • the cleaning strip is preferably arranged in regions of the rotor housing in which frequently adhesions and / or dirt occur. These can be, for example, areas with corner recesses, etc. in the inner wall of the rotor housing. In general, a plurality of regions, which tend to adhere to soil material and / or soiling, can thus often be present in a rotor housing. Therefore, a plurality of cleaning strips are preferably also arranged in a rotor housing, in particular in the regions which tend to adhere to the inner wall of the rotor housing.
  • a generic rotor housing often includes a device via the fluid, for example Water or bitumen, in particular foamed bitumen, can be introduced into the interior of the rotor housing from the outside.
  • a device via the fluid for example Water or bitumen, in particular foamed bitumen, can be introduced into the interior of the rotor housing from the outside.
  • corresponding hose connections are present, which open in the rotor housing or to the interior of the rotor housing in a corresponding nozzle opening or a comparable outlet device, via which the fluid enters the interior of the rotor housing.
  • Such fluid outlets are often line-like juxtaposed across the width of the rotor housing, i. arranged distributed in the axial direction of the milling rotor in order to allow the most uniform distribution of the fluid inside the rotor housing. Due to the fluids used, in particular water and / or bitumen, especially foamed bitumen, these areas of the rotor housing are particularly susceptible to buildup, so that especially in this area the advantages of the invention come into play particularly.
  • Such injection devices usually have a plurality of distributed over the width of the rotor housing typically arranged along a line fluid nozzles, wherein also several Einsprühvorraumen can be provided on or in the rotor housing, for example, to be able to simultaneously introduce different fluids in the working space or interior of the rotor housing.
  • suitable openings are arranged in the rotor housing, via which fluid can be introduced from the outside into the interior of the rotor housing and / or through which fluid nozzles can be guided to the interior of the rotor housing.
  • at least one cleaning strip is arranged in the region of the fluid nozzles.
  • each of these areas is provided with a cleaning strip.
  • several cleaning strips in the direction of rotation of the milling rotor or in the working direction of the milling device side by side, in particular over the entire width of the rotor housing (in one piece or segmented), may be arranged.
  • the cleaning strip is arranged overlapping at least one fluid outlet arranged in the rotor housing and has at least one through-passage, via which the fluid can be introduced from the fluid outlet into the interior of the rotor housing or through which the fluid outlet protrudes.
  • fluid outlet thus a passage opening in the rotor housing is designated, through which either fluid is sprayed into the interior of the rotor housing or through which an outlet device for fluid, in particular a fluid nozzle, is guided into the interior of the rotor housing.
  • a recess is arranged, which at least partially and in particular completely covers the passage opening in the rotor housing in order not to hinder the fluid entry into the interior of the rotor housing by the cleaning strip.
  • the passage opening in the cleaning strip is preferably made congruent in relation to the passage opening in the rotor housing. If the cleaning strip is now set in motion by blows and / or shaking movements, it moves in particular in the immediate vicinity of the fluid outlet and, especially in this area and across the passage opening, removes corresponding adhesions. In this way, the region of the at least one fluid outlet and the environment adjacent to it can be particularly efficiently cleared of adherences by the cleaning strip and / or prevent or dissolve blockages in the passage openings (in the rotor housing and / or in the cleaning strip).
  • the cleaning strip is therefore particularly preferably connected to the rotor housing at its side opposite the overlap region with the at least one fluid outlet. In this way, it is ensured that the cleaning strip in the region of the fluid outlet when applying a shock or a shaking movement moves particularly strong and thus triggers a particularly efficient cleaning process.
  • the at least one passage opening in the rotor housing dimensioned so large that the blows can be performed directly from outside the rotor housing manually, for example with a hammer on the cleaning bar.
  • a plurality of passage openings adjacent to each other in particular distributed over the extension of the cleaning strip in the axial direction, can be arranged in order to apply as possible over the entire width of the cleaning strip punches can.
  • the at least one passage opening, via which impacts and / or vibrations can be applied to the cleaning strip can be made as small as possible.
  • the use of a transmission device has proven to be part of the cleaning device, can be transmitted via the outside of the rotor housing applied shocks and / or vibrations to the cleaning strip in the interior of the rotor housing.
  • the beating and / or shaking movements are thus no longer applied directly to the cleaning strip, but to the transmission device, which transmits the caused by the shocks and / or Rüttelioloen pulses to the cleaning strip.
  • the transmission device is in particular passed through the passage opening.
  • the transmission device may be, for example, a bolt connected to the cleaning strip, which protrudes outward beyond the outer surface of the rotor housing. Shocks and / or shaking movements from outside the rotor housing can be applied to the bolts, which are transmitted via the bolt into the interior of the rotor housing on the cleaning strip.
  • the transmission device is thus connected to the cleaning strip. It goes without saying that several bolts can be arranged on a cleaning strip.
  • the transmission device may comprise, for example, a firing pin displaceably mounted on the rotor housing in a bolt guide.
  • the bolt guide is formed in such a way that the firing pin, usually linear, between a starting position and a tee position is movable, in which the firing pin at least partially pushes the cleaning strip in the interior of the rotor housing.
  • the firing pin is in other words slidably mounted and can Change the position and in particular the bending position of the cleaning strip.
  • the bolt guide may be, for example, a guide element with a captive securing device for the firing pin.
  • the firing pin projects with a receiving part over the bolt guide, similar to the protruding bolt before. It is particularly effective when the firing pin is spring-loaded, wherein the spring action pushes the firing pin of the cleaning strip preferably in a starting position away.
  • the beats and / or shaking movements can be applied manually, for example with a hammer, a crank mechanism, etc.
  • a drive device for automatically performing the cleaning function by means of the cleaning device is present.
  • the drive device is thus an element which serves to drive the impact and / or vibration movement on the cleaning strip, directly or indirectly.
  • the drive device can be, for example, an electric motor, a hydraulic motor, etc.
  • the drive device comprises at least one of the elements camshaft, vibration exciter, in particular eccentric exciter, control unit for regulating the impact intensity and / or beat frequency and / or timing.
  • the drive means drives the orbital motion of the camshaft.
  • the cams are used to trigger the impact and / or shaking and are, for example, with the cleaning bar directly or part of the transmission device, such as a firing pin, operatively connected.
  • the camshaft particularly high impact frequencies can be achieved, so that, for example, even a continuous operation of the cleaning function during operation of the milling rotor is possible.
  • a vibration exciter in particular exciter exciter.
  • Such exciters are characterized by the presence of an eccentric mass distribution, so that imbalances are obtained during rotational movements, which can be used to trigger blows and / or Studttelioloen on the cleaning bar.
  • a control unit for regulating the intensity and / or impact frequency of the drive device may also be included. This embodiment makes it possible to achieve optimum cleaning results, since the impact intensity and / or the beat frequency or shaking intensity and / or shaking frequency specifically to those in the respective Application occurring adhesions can be adjusted.
  • the time control is designed in such a way that the cleaning function is automatically resolved via the cleaning bar automatically after the expiry of a certain operating interval and / or a certain working distance.
  • the embodiments with drive device are thus characterized by a particularly high ease of use and reliable performance of the cleaning function.
  • the cleaning strip is preferably designed as a flat plane element in order to have the smallest possible space in the voltage applied to the inner wall of the rotor housing state, although in principle the use of cleaning strips with three-dimensional deformations, such as bends, is possible.
  • the cleaning strip can also be provided as a full-surface element.
  • the cleaning strip has passage openings for the fluid and / or nozzle passage. It can also be provided independently of the fluid supply openings in the cleaning strip, for example, to improve the cleaning effects. Also, the use of cuts, for example, to obtain tine-like structures, or other shape variants may be advantageous.
  • the invention further relates to a milling device for processing soil material with a rotor housing, as has been described in the preceding paragraphs.
  • the basic structure of such milling devices is known.
  • the rotor housing according to the invention is also suitable for use in a self-propelled milling device, in particular a road milling machine, a recycler or a stabilizer.
  • the invention also extends to a method for cleaning a rotor housing of internally adhering soil material, in particular a rotor housing, as described above.
  • Essential for the method according to the invention are the steps "applying a arranged inside a rotor housing cleaning strip with shocks and / or Rüttelmony” and “shaking off adhering to the cleaning strip soil material”. Due to the at least partially relative mobility of the cleaning strip relative to the rotor housing can be adhesions to the cleaning strip and in which the cleaning strip surrounding area of the interior of the rotor housing can be removed, without the complicated removal of the milling rotor and / or a lifting of the rotor housing is required.
  • FIG. 1 shows a milling device 1, concretely a so-called stabilizer or, depending on the application, a recycler.
  • the milling device comprises a machine frame 2, a pair of front wheels 3 and a pair of rear wheels 4, wherein only the respective wheel located in the working direction A on the left side is visible.
  • the machine frame 2 is constructed in two parts with two frame members, which are connected to each other via an articulated joint 5. At the height of the articulated joint 5, a height-adjustable cab 6 is arranged.
  • the required drive energy is obtained by means of a drive device 7, which controls both the operation of the milling device 1 as well as the drive of the milling rotor 9 (in FIG. 1 indicated very schematically) provides required drive power.
  • the milling device 1 is used for editing Soils or roadways and has for this purpose about a horizontal axis of rotation transverse to the direction of rotation a milling rotor 9.
  • the milling rotor 9 is surrounded by a rotor housing 8 (in the present case a rotor hood), which closes the space around the milling rotor upwards and towards the sides. Downwards or towards the bottom 10 to be machined, the rotor housing 8 is open.
  • the rotor housing 8 thus encloses a working space by the milling rotor 9 is mounted and rotates in the working mode about its axis of rotation 14.
  • the milling rotor 9 is adjustable in height relative to the rotor housing 8 and the machine frame 2 in the direction of arrow c and has an unspecified adjusting or pivoting device.
  • FIG. 1 shown position of the milling rotor 9 in contact with the soil to be processed 10.
  • the milling rotor 9 can be raised.
  • the milling device 1 is moved in the working direction A (forward direction) on the ground 9. Further details of the concrete structure of the bell housing 8 covered by the rotor housing around the milling rotor 9 will become apparent from the other figures.
  • FIG. 2 the rotor housing 8 is shown separately in perspective oblique view obliquely from the front.
  • Essential elements of the rotor housing 8 are a front wall 11, a rear wall 12 and to the sides of the rotor housing 8, a side wall 13.
  • the front wall 11 includes that part of the rotor housing 8, which in the working direction A with respect to a vertical plane along the axis of rotation 14 of the milling rotor (in FIG. 2 not shown) lies in front of this vertical plane (the vertical plane in vertical direction is in FIG. 2 indicated by the arrow b).
  • rear wall 12 is correspondingly designated that part of the rotor housing 8, which is located in the working direction a behind this vertical plane.
  • the rotor housing 8 comprises a cleaning device 15 with a cleaning strip 16 arranged in the interior IR of the rotor housing 8.
  • the cleaning strip 16 (FIG. 2) located flush against the inside of the front wall 11 FIG. 2 shown in dashed lines) is as an item view in FIG. 6 shown.
  • the cleaning strip 16 is a flat and flat body having fluid passage openings 17 and mounting openings 18 in its surface.
  • the cleaning strip 16 is made of spring steel and thus has elastic properties in a certain area.
  • screw-type or rivet connections used for connection to the rotor housing 8.
  • the fastening openings arranged juxtaposed in the longitudinal direction d are distributed uniformly in the longitudinal edge region 19 of the cleaning strip 16 in the longitudinal direction d.
  • the cleaning strip 16 in the assembled state is firmly connected to the front wall 11 (specifically the segment 11 c) and fixed relative to this.
  • the flat against the inner wall of the rotor housing 8 cleaning strip 16 is thus in this area in the interior of the rotor housing 8 through Bending elastically within the elasticity range.
  • the longitudinal edge region with the fluid passage openings 17 is thus relatively movable relative to the rotor housing 8.
  • the longitudinal side of the cleaning strip 16 is in Fig. 6 indicated L and the width with B.
  • the longitudinal side L is characterized in that it is significantly longer than the width B of the cleaning strip 16th
  • the cleaning strip 16 in the axial direction of the rotation axis 14 and in the longitudinal direction L is further segmented and includes the two juxtaposed arranged identical segment 16a and 16b (for example, according to Fig. 2 ).
  • the two individual segments 16a and 16b (a single segment is in Fig. 6 shown) are arranged adjacent to each other and movable separately.
  • FIGS. 2 . 3 . 4 and 5 show various alternatives, such as a bending movement of the cleaning strip 16 by blows and / or croquttelmony for shaking off adhering to the cleaning strip 16 soiling can be brought about, with the examples given in the figures are exemplary only and not exhaustive. It is essential that a movement of the cleaning strip 16 can be triggered by the voltage applied to the inner wall of the rotor housing 8 position in the interior and back from outside the rotor housing 8 and the beating and / or Studttelioloen the cleaning bar 16 from outside the rotor housing 8 the arranged inside the rotor housing 8 cleaning bar can be transferred.
  • the cleaning strip 16 is arranged lying flat on the inner wall of the rotor housing, so that the adhesions are in particular also on the outer surface facing the interior of the rotor housing 8 the cleaning strip 16 occur.
  • a fluid jet 27 and the circulated in the rotor housing 8 bottom material 28 are indicated.
  • the embodiment according to FIG. 2 provides for the application of shocks and / or vibrations from outside of the rotor housing 8 on the cleaning bar 16 through holes 20 in the rotor housing 8, specifically in the wall member 11c of the front wall 11, facing the interior of the rotor housing 8 of the cleaning strip 16 in the region between its two longitudinal edge regions completely covered.
  • the passage openings 20 are thus in relation to the cleaning strip 16 mounted on the rotor housing 8 in a region in which the cleaning strip 16 is not fixedly connected to the rotor housing 8.
  • the cleaning strip 16 is thus accessible via the passage openings 20 from outside the rotor housing 8, so that, for example, manually impacts directly on the cleaning strip 16, for example with a hammer or a chisel, depending on the size of the passage opening 20, can be exercised.
  • the passage openings 20 are formed correspondingly relatively large.
  • FIG. 4 is a sectional view through the rotor housing 8 with mounted cleaning strip 16 along the line II FIG. 3 ,
  • a transmission device 21 is provided, which allows the transmission of outside of the rotor housing 8 applied shocks and / or Studttelmosen on the arranged in the interior of the rotor housing 8 cleaning strip 16.
  • the transmission device is a firing pin 22 which is welded onto the cleaning strip 16 and protrudes outwardly from the interior of the rotor housing 8 through passage openings 20 in the rotor housing 8 over the outer surface of the rotor housing 8 (specifically the front wall 11) at the height ⁇ H 1 .
  • the height ⁇ H 1 is measured along a vertical rising on the front wall 11.
  • the firing pin 22 is then with the height .DELTA.H 1 on the rotor housing 8 before, when the cleaning strip 16 rests flat against the inner wall of the rotor housing 8.
  • the firing pin 22 transmits this directly to the cleaning strip 16 so that it bends into the interior of the rotor housing 8 in, as it with the dashed line C in Fig. 4 is further illustrated.
  • This line shows the position of the cleaning strip 16, which is transitionally bent into the interior of the milling rotor by impacts and / or vibration.
  • FIG. 4 showing a sectional view through the rotor housing 8 along the line II Fig. 3 is further illustrates the effect of the cleaning strip 16 on the fluid inlet 24 into the rotor housing.
  • Out FIG. 4 results in the position of a fluid nozzle 23, which protrudes from outside the rotor housing 8 coming into a fluid nozzle opening 24 in the rotor housing 8.
  • the fluid nozzle opening 24 in the rotor housing lies substantially congruently above the fluid passage opening 17 in the cleaning strip 16, so that a passage is provided from outside the rotor housing 8 through the front wall 11 of the rotor housing 8 and through the cleaning strip 16 toward the interior of the rotor housing 8.
  • FIG. 2 is the cleaning strip 16 in the embodiment of Figures 3 and 4 with a screw connection comprising a screw 25 and a nut 26 arranged inside the rotor housing 8.
  • FIG. 5 Finally, another variant relates to how impacts and / or shaking movements can be transmitted from outside the rotor housing 8 to the inner cleaning strip 16.
  • Fig. 5 is in its basic construction to the in Fig. 4 ajar with the box II framed area of the rotor housing 8.
  • the transmission device 21 off FIG. 5 includes several components. In addition to the directly responsible for the impact and Rüttelschreibung the transmission device 21 components, a camshaft 29 and a merely schematically indicated drive and control unit 30 is also present.
  • the transmission device 21 comprises a bolt guide 31, which is arranged on the rotor housing 8 and in concrete terms is a sleeve-like body connected to the front wall 11. In the bolt guide 31, a firing pin 32 is slidably mounted in the longitudinal direction e.
  • the firing pin 32 is spring-loaded with a compression spring 33 and is by the compression spring 33 in the in FIG. 5 shown starting position urged. In this position, the firing pin 32 is in the maximum of the cleaning strip 16 away pressed position and can be inserted in the direction of arrow e to the cleaning bar 16 out in the rotor housing 8 to the hub .DELTA.H 2 in the rotor housing. If the firing pin 32 is inserted, it strikes against the cleaning strip 16 in the contact region 34 and bends the cleaning strip 16 in the edge region facing away from the screw connection 25/26 into the interior of the rotor housing 8. If, however, no Druckkraftbeetzschung on the firing pin 32 to the rotor housing 8 out more, the firing pin 32 shoots due to its spring loading in the FIG. 5 shown starting position back. In principle, it is also possible to dispense with a pressure spring action since, as a rule, the elastic properties of the cleaning strip 16 are already sufficient to return the firing pin 32 to its initial position.
  • FIG. 5 shown embodiment Another essential aspect of in FIG. 5 shown embodiment is that no manual triggering of the beats and / or croquttelmosen is provided over the firing pin 32, although this is quite possible (the elements 29 and 30 are then no longer required).
  • a head element 35 On the side facing away from the rotor housing 8 of the firing pin 32, a head element 35 is provided, which is designed to cooperate with the camshaft 29.
  • the unit of head element 35 and firing pin 32 thus forms a total of a plunger element whose longitudinal displacement is triggered in the direction of arrow e by a rotational movement of the camshaft 29 in the direction of rotation f.
  • the cam of the camshaft 29 then slides on the head member 35 and pushes the element 32/35 to the rotor housing 8 and the cleaning bar 16 so that it bends into the interior of the rotor housing 8.
  • this is connected to the drive and control unit 30, which provides the required drive power for the rotational drive of the camshaft 29.
  • the work and control unit 30 is further formed in such a way that it can be varied about the rotational speed and thus the impact frequency or impact strength of the element 32/35 on the cleaning strip 16 and thus their bending frequency. For an automatic execution of the cleaning function is possible.
  • the work and control unit 30 may also include a time control, which allows, for example, the automated interval-like operation of the cleaning device 15 in the working mode, so that at regular intervals a liberation of the area of the cleaning strip 16 and in particular also the fluid passage openings 17 and fluid nozzle openings 24 takes place in the rotor housing 8 ,
EP12005494.5A 2011-10-07 2012-07-27 Boîtier de rotor pour un dispositif de fraisage destiné au traitement de sol, dispositif de fraisage et procédé de nettoyage d'un boîtier de rotor Active EP2578749B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110115325 DE102011115325A1 (de) 2011-10-07 2011-10-07 Rotorgehäuse für eine Fräsvorrichtung zur Bodenbearbeitung, Fräsvorrichtung und Verfahren zur Reinigung eines Rotorgehäuses

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EP2578749A2 true EP2578749A2 (fr) 2013-04-10
EP2578749A3 EP2578749A3 (fr) 2015-01-21
EP2578749B1 EP2578749B1 (fr) 2017-03-22

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US (1) US9091029B2 (fr)
EP (1) EP2578749B1 (fr)
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US11408136B1 (en) 2021-03-18 2022-08-09 Caterpillar Paving Products Inc. Machine and method of resisting debris accumulation on milling enclosure of machine
CN115573231A (zh) * 2022-09-03 2023-01-06 邯郸市华威公路设计咨询有限公司 一种公路工程施工中道路标线磨除设备

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DE102013009816A1 (de) * 2013-06-11 2014-12-11 Bomag Gmbh Bodenfräsmaschine, insbesondere Straßenkaltfräse
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US10407841B2 (en) * 2017-10-25 2019-09-10 Caterpillar Paving Products Inc. Rotary mixing system
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Also Published As

Publication number Publication date
CN103031802B (zh) 2015-09-09
DE102011115325A1 (de) 2013-04-11
US20130087172A1 (en) 2013-04-11
EP2578749B1 (fr) 2017-03-22
EP2578749A3 (fr) 2015-01-21
CN103031802A (zh) 2013-04-10
US9091029B2 (en) 2015-07-28

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