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EP2897774A1 - Device for the surface processing of floors and coverings - Google Patents

Device for the surface processing of floors and coverings

Info

Publication number
EP2897774A1
EP2897774A1 EP13818704.2A EP13818704A EP2897774A1 EP 2897774 A1 EP2897774 A1 EP 2897774A1 EP 13818704 A EP13818704 A EP 13818704A EP 2897774 A1 EP2897774 A1 EP 2897774A1
Authority
EP
European Patent Office
Prior art keywords
shaft
milling roller
roller
milling
receiving
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
EP13818704.2A
Other languages
German (de)
French (fr)
Other versions
EP2897774B1 (en
Inventor
Steffen Widemann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to SI201330418A priority Critical patent/SI2897774T1/en
Priority to RS20161109A priority patent/RS55445B1/en
Publication of EP2897774A1 publication Critical patent/EP2897774A1/en
Application granted granted Critical
Publication of EP2897774B1 publication Critical patent/EP2897774B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/188—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with cylinder- or belt-type tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/02—Wheels in one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/16—Bushings; Mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D2201/00—Bushings or mountings integral with the grinding wheel

Definitions

  • the invention relates to a device for surface treatment of floors and coverings for mounting on a driven receiving disc of a floor grinding machine according to the preamble of patent claim 1.
  • the invention further relates to a milling roller for use in such a device according to the preamble of claim 14 and a receiving disc for a floor grinding machine according to claim 20.
  • the receiving disks are equipped with abrasive carriers or with diamond-occupied discs.
  • a disadvantage of the previously known device is that the milling rollers subject to a strong closure can only be exchanged with great difficulty and with the use of tools.
  • the milling rollers have only a short service life, which is particularly due to the fact that the resulting in the course of tillage particulate matter penetrates into the camp, causing them to be affected.
  • This fine dust leads to an impairment of the run-out behavior, whereby the rolling axes often bend the inner screws, whereby their disassembly is difficult.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a device for surface treatment of soils for mounting on a driven pickup disc of a floor grinder, the milling roller is easy and tool-free interchangeable and avoided in the ingress of particulate matter in the storage. According to the invention, this object is solved by the features of the characterizing part of patent claim 1.
  • a device for surface treatment of floors and coverings for mounting on a driven pickup disc of a floor grinding machine is created, the milling roller is easy and tool-free interchangeable and is avoided in the deterioration of storage by fine dust.
  • the roller holder has a housing in which the shaft is rotatably mounted, a dirt-tight encapsulation of the storage is possible.
  • the means for releasably fastening a milling roller without tools comprise at least one, preferably three, particularly preferably four locking elements which can be moved radially at least partially out of the lateral surface of the shaft for engagement in a recess arranged in the milling roller.
  • the at least one blocking element is formed by a ball, which is arranged in a radial bore of the shaft, which radial bore opens in a centrally introduced into the shaft axial bore, in which a release pin is arranged axially movable over the ball is partially moved out through the radial bore.
  • a simple locking of the formed in the form of a ball locking element is made possible in the arranged in the milling roller recess.
  • the radial bore at least partially a smaller one Diameter than the ball, through which a complete passage of the ball is prevented from the radial bore.
  • a corresponding effect can be achieved by providing radially expansible pins on the shaft instead of the balls.
  • the disengagement pin has at least one reduced-diameter portion into which the fewest one ball can be moved radially at least in regions.
  • a release of at least one ball is made possible by axial movement of the disengaging pin, whereby a simple stripping of the milling roller is made possible by the shaft.
  • the region for the axial fixation located in the recess disposed within the milling roller at least one ball can in this case recede into the reduced diameter portion of the release pin.
  • the release pin is resiliently mounted in the axial blind bore, from which he protrudes end.
  • the release pin is biased in an end position in which the at least one ball is pressed by the radial bore of the shaft to the outside.
  • To release the axial fixation of the Ausgurll against the spring can be moved axially such that the at least one ball can retreat into the reduced diameter portion of the disengaging pin, after which the milling roller can be easily removed from the shaft.
  • the recess arranged in the milling roller for engagement of the at least one locking element is formed by a circumferential groove. This allows a radially arbitrary positioning of the locking elements, whereby the mounting of the milling roller is facilitated on the shaft.
  • the means for tool-releasable attachment of a milling roller comprise at least one, preferably a plurality of drivers, which engage in a corresponding recess of the milling roller.
  • at least one catch receptacle can be arranged, in which engages a corresponding, arranged on the milling roller driver.
  • the driver is formed by a non-circular, preferably polygonal outline of an end region of the shaft, which engages in a corresponding with this shaft receiving the Fräsrolle.
  • the shaft may have an enlarged diameter relative to the free end of the shaft portion through which a shoulder is formed, are arranged on the at least two, preferably three axially cantilevered, preferably cylindrical driver, in which corresponding recesses of the milling roller intervention.
  • an encircling web is advantageously formed on the front of the milling roller, which surrounds the enlarged diameter portion of the shaft. This counteracts the penetration of fine dust into the positive connection between the milling roller and the shaft.
  • the housing is formed dust-tight enclosing the storage area of the shaft. As a result, an impairment of the running properties of the shaft bearing is prevented.
  • the present invention is further based on the object to provide a milling roller for use in a device of the aforementioned type, which allows a simple, tool-free replacement. According to the invention, this object is achieved by the characterizing part of patent claim 14.
  • a milling roller for use in a device of the aforementioned type is provided, which is easy and tool-free interchangeable.
  • the shaft receptacle is formed by a blind bore.
  • a one-sided closed tool holder is achieved, whereby the entry of fine dust during tillage is counteracted.
  • the shaft receptacle has a non-round cross-section, preferably in the form of a polygon.
  • a positive connection of the milling roller with a correspondingly corresponding shaft can be achieved, whereby a radial fixation is effected.
  • at least one, preferably three holes for receiving arranged on a male shaft drivers may be mounted in the milling roller on its front side adjacent to the shaft receiving at least one, whereby a corresponding positive engagement can be achieved.
  • Anstell the at least one, preferably three holes can be arranged here or preferably three preferably cylindrical trained driving pins here.
  • the end of the shaft receiving an axially projecting circumferential web is integrally formed.
  • FIG. 1 is an exploded view of a device for surface treatment of trays for mounting on a driven take-up disk of a floor grinding machine;
  • FIG. 2 shows the representation of the shaft of the device of Figure 1 a) in side view
  • Figure 4 shows the representation of the housing cover of the housing of Figure 3 a) in front view
  • FIG. 6 shows the illustration of a receiving disk for a floor grinding machine with a device mounted thereon according to FIG. 1
  • the chosen as an embodiment device for surface treatment of soils for mounting on a driven pickup disc of a floor grinder consists essentially of a housing 1 in which a shaft 2 is rotatably mounted, which is provided with a milling roller 3.
  • the housing 1 is substantially cuboid-shaped, wherein its upper-side cover surface is beveled saddle-roof-shaped.
  • a bore 1 1 is introduced, in which about two thirds of its length, a circumferential ridge 12 is formed, wherein the bore 1 1 is formed enlarged in diameter after the web 12.
  • This diameter enlarged range 1 1 1 serves to receive sealing rings 6 for dust-tight sealing of the housing first
  • two deep-groove ball bearings 4 arranged one behind the other are introduced into the bore 11 for rotational mounting of the shaft 2.
  • the housing 1 is closed by a cover 13 which is provided with a bore 14 corresponding to the bore 1 1 of the housing 1.
  • the bore 14 delimiting the lid 13 is an annular shoulder 15th formed on the inside of the enlarged diameter portion 1 1 1 of the bore 1 1 is applied.
  • the cover 13 is bolted to the threaded holes 17 provided in the housing 1 by means of hexagonal screws 8 provided with washers 81, which are guided through bores 16 introduced into the cover 13.
  • four threaded blind holes 17 are made in the housing 1 for attachment to a receiving disk 5.
  • the shaft 2 is designed as a hollow shaft and end provided with four offset by 90 degrees circumferentially offset radial bores 21 for receiving one ball 22 each.
  • the shaft 2 has a threaded portion 27 provided with an external thread. In the axial bore 20 of the shaft 2, a release pin 28 is introduced.
  • the Ausschky 28 is biased in the axial bore 20 via a - not shown - arranged within the axial bore 20 spring, such that a movement of the Ausschreibxs 28 takes place in the direction of the holes 21 against the spring tension. Furthermore, in the disengaging pin, a groove (not shown) is provided, which is circumferentially provided around the circumference of the diameter of the ball 22. In this case, this - not shown - groove is positioned so that when pressed-Ausgurjanjan 28, the balls 22 can recede into this - not shown - groove.
  • the thus formed shaft 2 is inserted into the bore 1 1 of the housing 1, wherein the enlarged diameter portion 23 abuts on the circumferential rib 12 via the sealing rings 6.
  • the shaft 2 is rotatably mounted in the deep groove ball bearings 4 penetrated by the latter and has two rotors mounted on the same.
  • the milling roller 3 is substantially cylindrical. On its lateral surface 31, the milling roller 3 is provided with milling contours (not shown). Axially in the milling roller 3, a shaft receiving 32 is introduced in the manner of a blind bore, in the inner wall approximately centrally a circumferential groove 33 is arranged. Adjacent to the shaft receptacle 32 are frontally into the milling roller three circumferentially offset by 120 degrees to each other arranged blind holes 34 for receiving a dowel pin 25 is introduced. In an extension of the lateral surface of the milling roller 18, the blind bores 34 are further formed on the front side surrounding an axially projecting circumferential ridge 35.
  • the milling roller 3 is mounted on the shaft 2, whereby the end of the shaft 2 provided with bores 21 is inserted into the shaft receptacle 32.
  • the shaft 2 in the shaft seat 32 of the disengaging pin 28 is pressed in the direction of the milling roller 3, which is why the arranged in the holes 21 balls 22 in the - not shown - groove of the disengaging pin 28 recede.
  • the release pin 28 is pressed in the direction of the milling roller 3, whereby the introduced in the Ausgurjanjan 28 - not shown - - groove is moved at the level of the balls 22. Subsequently, the milling roller 3 can be deducted from the shaft 2, wherein Dowel pins 25 are moved out of the blind holes 24 and the balls 22 in the - not shown - circumferential groove of the disengaging pin 28 are pushed back. A new milling roller 3 can now be applied in the manner described above on the shaft 2 and locked after shipment of the disengaging pin 28 in its initial position on the balls 22 with the shaft 2.
  • the device thus formed is fastened by means of screws via the threaded blind bores 17 arranged in the housing with a receiving disk 5 for a floor grinding machine, as shown by way of example in FIG.
  • the receiving disk 5 has a cloverleaf-like recess 51 for the positive connection with a drive of the bottom grinding machine (not shown). Adjacent to this recess 51 are each offset by 120 degrees to each other four holes 52 for fixing each of the housing 1 of the device according to the invention - by means of screws (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention relates to a device for the surface processing of floors and coverings for mounting on a driven receiving disc (5) of a floor grinding machine, comprising a roller receiver with a rotatably mounted, contoured milling roller (3), wherein the roller receiver has a shaft (2) on which the contoured milling roller (3) is arranged, wherein the roller receiver has a housing (1) in which the shaft (2) is rotatably mounted, which shaft (2) is provided with means for releasably fastening a milling roller (3) without tools. The invention further relates to a milling roller (3) for use in such a device.

Description

Vorrichtung zur Flächenbearbeitunq von Böden und Belägen  Device for surface treatment of floors and coverings
Die Erfindung betrifft eine Vorrichtung zur Flächenbearbeitung von Böden und Belägen zur Montage an einer angetriebenen Aufnahmescheibe einer Boden- Schleifmaschine nach dem Oberbegriff des Patentanspruchs 1 . Die Erfindung betrifft weiterhin eine Fräsrolle zum Einsatz in einer solchen Vorrichtung nach dem Oberbegriff des Patentanspruchs 14 sowie eine Aufnahmescheibe für eine Bodenschleifmaschine nach dem Patentanspruch 20. Zur Flächenbearbeitung von Böden, beispielsweise Marmor-, Granit- oder Natursteinböden, sowie auch zur Entfernung von Kleberresten und Kunstharzbe- schichtungen von Böden oder auch zur Oberflächenbearbeitung von Straßenbelägen ist es bekannt, Bodenschleifmaschinen einzusetzen, deren Aufnahmescheiben mit Schleifmittelträgern oder auch mit Diamant besetzen Scheiben bestückt sind. Gute Ergebnisse werden in jüngerer Zeit dadurch erzielt, dass die Aufnahmescheibe mit konturierten Fräsrollen, sogenannten„Bush-Hammer" bestückt werden, die an einer Rollenaufnahme drehbar gelagert sind, welche an die dem Boden zugewandte Unterseite der Aufnahmescheibe befestigt werden. Derartige Bush-Hammer-Scheiben werden beispielsweise von der italienischen Firma Klindex S.r.l unter der Internetadresse www.klindex.it vertrieben. Hierbei sind die Fräsrollen aus hohlzylinderförmigen gehärteten Fräskörpern versehen. Innen ist in die Fräsrolle eine Wälzlagerhülse eingepresst. Die so ausgebildete Fräsrolle ist mittels einer durch diese durchgeführten Schraube, die gleichzeitig die Drehachse bildet, an ein Winkelstück angeschraubt, das wiederum auf die Aufnahmescheibe aufgeschraubt ist. The invention relates to a device for surface treatment of floors and coverings for mounting on a driven receiving disc of a floor grinding machine according to the preamble of patent claim 1. The invention further relates to a milling roller for use in such a device according to the preamble of claim 14 and a receiving disc for a floor grinding machine according to claim 20. For surface treatment of soils, such as marble, granite or natural stone floors, as well as for the removal of adhesive residues and Synthetic resin coatings on floors or for the surface treatment of road surfaces, it is known to use floor grinding machines, the receiving disks are equipped with abrasive carriers or with diamond-occupied discs. More recently, good results have been achieved by fitting the receiving disk with contoured milling rollers, so-called "bush hammers", which are rotatably mounted on a roller mount, which are fastened to the bottom of the receiving disk facing the bottom. Slices are sold, for example, by the Italian company Klindex Srl under the Internet address www.klindex.it, where the milling rollers are made of hollow-cylindrical hardened milling bodies, inside which a roller bearing sleeve is pressed into the milling roller. which simultaneously forms the axis of rotation, screwed to an elbow, which in turn is screwed onto the receiving disc.
Nachteilig an der vorgekannten Vorrichtung ist, dass die einem starken Verschließ unterliegenden Fräsrollen nur sehr aufwendig und unter Einsatz von Werkzeug ausgewechselt werden können. Dabei weisen die Fräsrollen nur eine geringe Standzeit auf, was insbesondere auch dadurch bedingt ist, dass der im Zuge der Bodenbearbeitung entstehende Feinstaub in die Lager eindringt, wodurch diese beeinträchtigt werden. Dieser Feinstaub führt zu einer Beeinträchtigung des Rundlaufverhaltens, wodurch die Walzachsen die Innenschrauben oftmals verbiegen, wodurch deren Demontage erschwert ist. Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Flächenbearbeitung von Böden zur Montage an einer angetriebenen Aufnahmescheibe einer Bodenschleifmaschine bereitzustellen, deren Fräsrolle einfach und werkzeuglos auswechselbar ist und bei der ein Eindringen von Feinstaub in die Lagerung vermieden. Gemäß der Erfindung wird diese Aufgabe durch die Merkmale des kennzeichnenden Teil des Patentanspruchs 1 gelöst. Mit der Erfindung ist eine Vorrichtung zur Flächenbearbeitung von Böden und Belägen zur Montage an einer angetriebenen Aufnahmescheibe einer Bodenschleifmaschine geschaffen, deren Fräsrolle einfach und werkzeuglos austauschbar ist und bei der Beeinträchtigung der Lagerung durch Feinstaub vermieden ist. Dadurch, dass die Rollenaufnahme ein Gehäuse aufweist, in der die Welle drehbar gelagert ist, ist eine schmutzdichte Kapselung der Lagerung ermöglicht. A disadvantage of the previously known device is that the milling rollers subject to a strong closure can only be exchanged with great difficulty and with the use of tools. In this case, the milling rollers have only a short service life, which is particularly due to the fact that the resulting in the course of tillage particulate matter penetrates into the camp, causing them to be affected. This fine dust leads to an impairment of the run-out behavior, whereby the rolling axes often bend the inner screws, whereby their disassembly is difficult. The invention aims to remedy this situation. The invention has for its object to provide a device for surface treatment of soils for mounting on a driven pickup disc of a floor grinder, the milling roller is easy and tool-free interchangeable and avoided in the ingress of particulate matter in the storage. According to the invention, this object is solved by the features of the characterizing part of patent claim 1. With the invention, a device for surface treatment of floors and coverings for mounting on a driven pickup disc of a floor grinding machine is created, the milling roller is easy and tool-free interchangeable and is avoided in the deterioration of storage by fine dust. Characterized in that the roller holder has a housing in which the shaft is rotatably mounted, a dirt-tight encapsulation of the storage is possible.
In Weiterbildung der Erfindung umfassen die Mittel zur werkzeuglosen lösbaren Befestigung einer Fräsrolle wenigstens ein, bevorzugt drei, besonders bevor- zugt vier radial wenigstens teilweise aus der Mantelfläche der Welle hinausbewegbaren Sperrelemente zum Eingriff in eine in der Fräsrolle angeordnete Ausnehmung. Hierdurch ist eine axiale Fixierung der Fräsrolle auf der Welle innerhalb der Fräsrolle erzielt. Durch die innere Anordnung der Fixierung ist eine Beeinträchtigung durch Feinstaub vermieden, wodurch ein einfaches Auswechseln einer verschlissenen Fräsrolle unterstützt ist. In a development of the invention, the means for releasably fastening a milling roller without tools comprise at least one, preferably three, particularly preferably four locking elements which can be moved radially at least partially out of the lateral surface of the shaft for engagement in a recess arranged in the milling roller. As a result, an axial fixation of the milling roller on the shaft is achieved within the milling roller. The internal arrangement of the fixation avoids interference by fine dust, whereby a simple replacement of a worn milling roller is supported.
In weiterer Ausgestaltung der Erfindung ist das wenigstens eine Sperrelement durch eine Kugel gebildet, die in einer radialen Bohrung der Welle angeordnet ist, welche radiale Bohrung in einer zentrisch in die Welle eingebrachten Axial- bohrung mündet, in der ein Ausrückstift axial bewegbar angeordnet ist, über den die Kugel bereichsweise durch die radiale Bohrung herausbewegbar ist. Hierdurch ist eine einfache Arretierung des in Form einer Kugel ausgebildeten Sperrelements in die in der Fräsrolle angeordnete Ausnehmung ermöglicht. Vorteilhaft weist die radiale Bohrung zumindest bereichsweise einen kleineren Durchmesser als die Kugel auf, durch die ein vollständiger Durchtritt der Kugel aus der radialen Bohrung verhindert ist. Eine entsprechende Wirkung kann dadurch erzielt werden, dass anstelle der Kugeln radial ausbringbare Stifte an der Welle vorgesehen sind. In a further embodiment of the invention, the at least one blocking element is formed by a ball, which is arranged in a radial bore of the shaft, which radial bore opens in a centrally introduced into the shaft axial bore, in which a release pin is arranged axially movable over the ball is partially moved out through the radial bore. As a result, a simple locking of the formed in the form of a ball locking element is made possible in the arranged in the milling roller recess. Advantageously, the radial bore at least partially a smaller one Diameter than the ball, through which a complete passage of the ball is prevented from the radial bore. A corresponding effect can be achieved by providing radially expansible pins on the shaft instead of the balls.
In Weiterbildung der Erfindung weist der Ausrückstift wenigstens einen durchmesserreduzierten Abschnitt auf, in den die wenigsten eine Kugel radial zumindest bereichsweise hineinbewegbar ist. Hierdurch ist eine Freigabe der wenigstens einen Kugel durch axiale Bewegung des Ausrückstifts ermöglicht, wodurch ein einfaches Abstreifen der Fräsrolle von der Welle ermöglicht wird. Die zur axialen Fixierung bereichsweise in der innerhalb der Fräsrolle angeordneten Ausnehmung befindliche wenigstens eine Kugel kann hierbei in den durchmesserreduzierten Abschnitt des Ausrückstifts zurückweichen. In weiterer Ausgestaltung der Erfindung ist der Ausrückstift in der axialen Sackbohrung federnd gelagert, aus der er endseitig hinausragt. Hierdurch ist der Ausrückstift in einer Endposition vorgespannt, in der die wenigstens eine Kugel durch die Radialbohrung der Welle nach außen gedrückt wird. Zum Lösen der axialen Fixierung kann der Ausrückstift entgegen der Feder derart axial bewegt werden, dass die wenigstens eine Kugel in den durchmesserreduzierten Abschnitt des Ausrückstifts zurückweichen kann, wonach die Fräsrolle einfach von der Welle abgezogen werden kann. In a further development of the invention, the disengagement pin has at least one reduced-diameter portion into which the fewest one ball can be moved radially at least in regions. As a result, a release of at least one ball is made possible by axial movement of the disengaging pin, whereby a simple stripping of the milling roller is made possible by the shaft. The region for the axial fixation located in the recess disposed within the milling roller at least one ball can in this case recede into the reduced diameter portion of the release pin. In a further embodiment of the invention, the release pin is resiliently mounted in the axial blind bore, from which he protrudes end. As a result, the release pin is biased in an end position in which the at least one ball is pressed by the radial bore of the shaft to the outside. To release the axial fixation of the Ausrückstift against the spring can be moved axially such that the at least one ball can retreat into the reduced diameter portion of the disengaging pin, after which the milling roller can be easily removed from the shaft.
In Weiterbildung der Erfindung ist die in der Fräsrolle angeordnete Ausnehmung zum Eingriff des wenigstens einen Sperrelements durch eine umlaufende Nut gebildet. Hierdurch ist eine radial beliebige Positionierung der Sperrelemente ermöglicht, wodurch die Montage der Fräsrolle auf der Welle erleichtert ist. In a further development of the invention, the recess arranged in the milling roller for engagement of the at least one locking element is formed by a circumferential groove. This allows a radially arbitrary positioning of the locking elements, whereby the mounting of the milling roller is facilitated on the shaft.
In weiterer Ausgestaltung der Erfindung umfassen die Mittel zur werkzeuglos lösbaren Befestigung einer Fräsrolle wenigstens einen, bevorzugt mehrere Mitnehmer, die in eine korrespondierende Ausnehmung der Fräsrolle eingreifen. Alternativ kann auch wenigstens eine Mitnehmeraufnahme angeordnet sein, in die ein korrespondierender, an der Fräsrolle angeordneter Mitnehmer eingreift. Hierdurch ist eine formschlüssige Verbindung zwischen Welle und Fräskopf geschaffen, wodurch dieser auch radial an der Welle fixiert ist. In a further embodiment of the invention, the means for tool-releasable attachment of a milling roller comprise at least one, preferably a plurality of drivers, which engage in a corresponding recess of the milling roller. Alternatively, at least one catch receptacle can be arranged, in which engages a corresponding, arranged on the milling roller driver. As a result, a positive connection between the shaft and milling head is created, whereby it is also fixed radially to the shaft.
In Weiterbildung der Erfindung ist der Mitnehmer durch eine unrunde, bevorzugt vieleckige Auskontur eines endseitigen Bereichs der Welle gebildet, die in eine mit diesem korrespondierende Wellenaufnahme der Fräsrolle eingreift. Alternativ oder auch zusätzlich kann die Welle einen gegenüber dem freien Ende der Welle durchmesservergrößerten Abschnitt aufweisen, durch den ein Absatz gebildet ist, an dem wenigstens zwei, bevorzugt drei axial auskragende, bevor- zugt zylinderförmige Mitnehmer angeordnet sind, die in hiermit korrespondierende Ausnehmungen der Fräsrolle eingreifen. Dabei ist an der Fräsrolle vorteilhaft stirnseitig ein umlaufender Steg angeformt, der den durchmesservergrößerten Abschnitt der Welle umschließt. Hierdurch ist einem Eindringen von Feinstaub in die formschlüssige Verbindung zwischen Fräsrolle und Welle ent- gegengewirkt. In a further development of the invention, the driver is formed by a non-circular, preferably polygonal outline of an end region of the shaft, which engages in a corresponding with this shaft receiving the Fräsrolle. Alternatively or additionally, the shaft may have an enlarged diameter relative to the free end of the shaft portion through which a shoulder is formed, are arranged on the at least two, preferably three axially cantilevered, preferably cylindrical driver, in which corresponding recesses of the milling roller intervention. In this case, an encircling web is advantageously formed on the front of the milling roller, which surrounds the enlarged diameter portion of the shaft. This counteracts the penetration of fine dust into the positive connection between the milling roller and the shaft.
Vorteilhaft ist das Gehäuse den Lagerbereich der Welle staubdicht umschließend ausgebildet. Hierdurch ist eine Beeinträchtigung der Laufeigenschaften der Wellenlagerung verhindert. Advantageously, the housing is formed dust-tight enclosing the storage area of the shaft. As a result, an impairment of the running properties of the shaft bearing is prevented.
Der vorliegenden Erfindung liegt weiterhin die Aufgabe zugrunde, eine Fräsrolle zum Einsatz in einer Vorrichtung der vorgenannten Art bereitzustellen, die einen einfachen, werkzeuglosen Austausch ermöglicht. Gemäß der Erfindung wird diese Aufgabe durch den kennzeichnenden Teils des Patentanspruchs 14 ge- löst. The present invention is further based on the object to provide a milling roller for use in a device of the aforementioned type, which allows a simple, tool-free replacement. According to the invention, this object is achieved by the characterizing part of patent claim 14.
Mit der Erfindung ist eine Fräsrolle zum Einsatz in eine Vorrichtung der vorgenannten Art bereitgestellt, die einfach und werkzeuglos austauschbar ist. With the invention, a milling roller for use in a device of the aforementioned type is provided, which is easy and tool-free interchangeable.
Dadurch, dass innerhalb der Wellenaufnahme eine umlaufende Nut zum Eingriff von Sperrelementen einer einzubringenden Welle angeordnet ist, ist eine einfache, werkzeuglose Arretierung der Fräsrolle auf einer solchen Welle ermöglicht. Characterized in that within the shaft receiving a circumferential groove for engagement of locking elements of a shaft to be introduced, a simple, tool-free locking of the milling roller is possible on such a shaft.
In Weiterbildung der Erfindung ist die Wellenaufnahme durch eine Sackbohrung gebildet. Hierdurch ist eine einseitig geschlossene Werkzeugaufnahme erzielt, wodurch dem Eintrag von Feinstaub während der Bodenbearbeitung entgegengewirkt ist. In a further development of the invention, the shaft receptacle is formed by a blind bore. As a result, a one-sided closed tool holder is achieved, whereby the entry of fine dust during tillage is counteracted.
In Ausgestaltung der Erfindung weist die Wellenaufnahme einen unrunden, vor- zugsweise in Art eines Vielkants ausgebildeten Querschnitt auf. Hierdurch ist eine formschlüssige Verbindung der Fräsrolle mit einer entsprechend korrespondierenden Welle erzielbar, wodurch eine auch radiale Fixierung bewirkt ist. Alternativ oder zusätzlich kann in die Fräsrolle auf ihrer Stirnseite benachbart der Wellenaufnahme auch wenigstens eine, bevorzugt drei Bohrungen zur Auf- nähme von an einer aufzunehmenden Welle angeordneten Mitnehmern angebracht sein, wodurch ein entsprechender Formschluss erzielbar ist. Anstellt der wenigstens einen, bevorzugt drei Bohrungen können hier auch ein bzw. bevorzugt drei vorzugsweise zylindrisch ausgebildete Mitnehmerstifte angeordnet sein. In a refinement of the invention, the shaft receptacle has a non-round cross-section, preferably in the form of a polygon. In this way, a positive connection of the milling roller with a correspondingly corresponding shaft can be achieved, whereby a radial fixation is effected. Alternatively or additionally, at least one, preferably three holes for receiving arranged on a male shaft drivers may be mounted in the milling roller on its front side adjacent to the shaft receiving at least one, whereby a corresponding positive engagement can be achieved. Anstell the at least one, preferably three holes can be arranged here or preferably three preferably cylindrical trained driving pins here.
In weiterer Ausgestaltung der Erfindung ist stirnseitig die Wellenaufnahme umschließend ein axial vorstehender umlaufender Steg angeformt. Hierdurch ist einem Eintrag von Feinstaub zwischen der Wellenaufnahme und einer von diesen aufgenommenen Welle entgegengewirkt. In a further embodiment of the invention, the end of the shaft receiving an axially projecting circumferential web is integrally formed. As a result, an entry of fine dust between the shaft and a wave recorded by this wave counteracted.
Die vorliegende Erfindung umfasst weiterhin auch eine Aufnahmescheibe für eine Bodenschleifmaschine, welche auf einer Seite wenigstens mit drei erfindungsgemäßen Vorrichtungen versehen ist. Andere Weiterbildungen und Ausgestaltungen der Erfindung sind in den übrigen Unteransprüchen angegeben. Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird nachfolgend im Einzelnen beschrieben. Es zeigen: Figur 1 die schematische Darstellung einer Vorrichtung zur Flächenbearbeitung von Böden zur Montage an einer angetriebenen Aufnahmescheibe einer Bodenschleifmaschine in Explosionsdarstellung; The present invention also includes a receiving disc for a floor grinding machine, which is provided on one side with at least three devices according to the invention. Other developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is illustrated in the drawings and will be described in detail below. FIG. 1 is an exploded view of a device for surface treatment of trays for mounting on a driven take-up disk of a floor grinding machine;
Figur 2 die Darstellung der Welle der Vorrichtung aus Figur 1 a) in der Seitenansicht; 2 shows the representation of the shaft of the device of Figure 1 a) in side view;
b) in der Draufsicht;  b) in plan view;
Figur 3 die Darstellung des Gehäuses der Vorrichtung aus Figur 1  3 shows the representation of the housing of the device of Figure 1
a) in der Vorderansicht;  a) in front view;
b) in Schnittdarstellung;  b) in sectional view;
c) in der Ansicht von hinten;  c) in the view from behind;
d) in der Ansicht von unten;  d) in the view from below;
Figur 4 die Darstellung des Gehäusedeckels des Gehäuses aus Figur 3 a) in der Vorderansicht  Figure 4 shows the representation of the housing cover of the housing of Figure 3 a) in front view
b) in der Seitenansicht;  b) in side view;
Figur 5 die schematische Darstellung der Fräsrolle der Vorrichtung aus Figur 1  5 shows the schematic representation of the milling roller of the device of Figure 1
a) in der Draufsicht;  a) in plan view;
b) im Schnitt A-A und  b) in section A-A and
Figur 6 die Darstellung einer Aufnahmescheibe für eine Bodenschleifmaschine mit einer auf dieser befestigten Vorrichtung gemäß Figur 1 .  6 shows the illustration of a receiving disk for a floor grinding machine with a device mounted thereon according to FIG. 1
Die als Ausführungsbeispiel gewählte Vorrichtung zur Flächenbearbeitung von Böden zur Montage an einer angetriebenen Aufnahmescheibe einer Boden- Schleifmaschine besteht im Wesentlichen aus einem Gehäuse 1 , in dem eine Welle 2 drehbar gelagert ist, die mit einer Fräsrolle 3 versehen ist. The chosen as an embodiment device for surface treatment of soils for mounting on a driven pickup disc of a floor grinder consists essentially of a housing 1 in which a shaft 2 is rotatably mounted, which is provided with a milling roller 3.
Das Gehäuse 1 ist im Wesentlichen quaderförmig ausgebildet, wobei dessen oberseitige Deckfläche satteldachförmig abgeschrägt ist. In dem Gehäuse ist eine Bohrung 1 1 eingebracht, in der etwa nach 2/3 ihrer Länge ein umlaufender Steg 12 angeformt ist, wobei die Bohrung 1 1 im Anschluss an den Steg 12 durchmesservergrößert ausgebildet ist. Dieser durchmesservergrößerte Bereich 1 1 1 dient der Aufnahme von Dichtringen 6 zur staubdichten Abdichtung des Gehäuses 1 . Auf ihrer dem durchmesservergrößerten Bereich 1 1 1 gegenüber- liegenden Seite des Steges 12 sind in die Bohrung 1 1 zwei hintereinander angeordnete Rillenkugellager 4 zur Drehlagerung der Welle 2 eingebracht. End- seitig ist das Gehäuse 1 über einen Deckel 13 verschlossen, der mit einer zu der Bohrung 1 1 des Gehäuses 1 korrespondierenden Bohrung 14 versehen ist. Die Bohrung 14 begrenzend ist an dem Deckel 13 ein ringförmiger Absatz 15 angeformt, der innen an dem durchmesservergrößerten Bereich 1 1 1 der Bohrung 1 1 anliegt. Der Deckel 13 ist über mit Unterlegscheiben 81 versehene Sechskantschrauben 8, welche durch in den Deckel 13 eingebrachte Bohrungen 16 durchgeführt sind, mit in dem Gehäuse 1 angeordneten Gewindeboh- rungen 17 verschraubt. Auf seiner der satteldachartigen Oberseite gegenüberliegenden Unterseite sind in das Gehäuse 1 vier Gewindesacklochbohrungen 17 zur Befestigung an einer Aufnahmescheibe 5 eingebracht. The housing 1 is substantially cuboid-shaped, wherein its upper-side cover surface is beveled saddle-roof-shaped. In the housing, a bore 1 1 is introduced, in which about two thirds of its length, a circumferential ridge 12 is formed, wherein the bore 1 1 is formed enlarged in diameter after the web 12. This diameter enlarged range 1 1 1 serves to receive sealing rings 6 for dust-tight sealing of the housing first On their side of the web 12 opposite the diameter-enlarged region 11 1, two deep-groove ball bearings 4 arranged one behind the other are introduced into the bore 11 for rotational mounting of the shaft 2. End side, the housing 1 is closed by a cover 13 which is provided with a bore 14 corresponding to the bore 1 1 of the housing 1. The bore 14 delimiting the lid 13 is an annular shoulder 15th formed on the inside of the enlarged diameter portion 1 1 1 of the bore 1 1 is applied. The cover 13 is bolted to the threaded holes 17 provided in the housing 1 by means of hexagonal screws 8 provided with washers 81, which are guided through bores 16 introduced into the cover 13. On its underside opposite the gable roof-like underside, four threaded blind holes 17 are made in the housing 1 for attachment to a receiving disk 5.
Die Welle 2 ist als Hohlwelle ausgeführt und endseitig mit vier jeweils um 90 Grad umlaufend versetzt angeordneten radialen Bohrungen 21 zur Aufnahme je einer Kugel 22 versehen. Die Bohrungen 21 münden in der zentrisch durch die Welle 2 geführten Axialbohrung 20. Benachbart zu den Bohrungen 21 ist an der Welle 2 ein durchmesservergrößerter Abschnitt 23 angeformt, der auf seiner den Bohrungen 21 zugewandten Stirnseite umlaufend mit drei jeweils um 120 Grad versetzt angeordneten Bohrungen 24 zur Aufnahme von zylindrisch ausgebildeten Passstiften 25 versehen ist. An den durchmesservergrößerten Abschnitt 23 grenzt ein zu diesem im Durchmesser verringerter Absatz 26 an, der gegenüber der Welle 2 durchmesservergrößert ausgebildet ist. An ihrem den Bohrungen 21 gegenüberliegenden Ende weist die Welle 2 einen mit einem Außengewinde versehenen Gewindeabschnitt 27 auf. In die Axialbohrung 20 der Welle 2 ist ein Ausrückstift 28 eingebracht. Der Ausrückstift 28 ist in der Axialbohrung 20 über eine - nicht dargestellte - innerhalb der Axialbohrung 20 angeordnete Feder vorgespannt, derart, dass eine Bewegung des Ausrückstifts 28 in Richtung der Bohrungen 21 entgegen der Federspannung erfolgt. Weiter- hin ist in dem Ausrückstift außen umlaufend eine - nicht dargestellte - Nut eingebracht, deren Breite etwa dem Durchmesser der Kugel 22 entspricht. Dabei ist diese - nicht dargestellte - Nut derart positioniert, dass bei eingedrücktem Ausrückstift 28 die Kugeln 22 in diese - nicht dargestellte - Nut zurückweichen können. The shaft 2 is designed as a hollow shaft and end provided with four offset by 90 degrees circumferentially offset radial bores 21 for receiving one ball 22 each. Adjacent to the bores 21, an enlarged diameter portion 23 is integrally formed on the shaft 2, which circumferentially on its front side facing the bores 21 with three bores 24 each offset by 120 degrees is provided for receiving cylindrically shaped dowel pins 25. Adjacent to the diameter-enlarged portion 23 adjoins this reduced in diameter shoulder 26, which is formed with respect to the diameter of the shaft 2. At its end opposite the bores 21, the shaft 2 has a threaded portion 27 provided with an external thread. In the axial bore 20 of the shaft 2, a release pin 28 is introduced. The Ausrückstift 28 is biased in the axial bore 20 via a - not shown - arranged within the axial bore 20 spring, such that a movement of the Ausrückstifts 28 takes place in the direction of the holes 21 against the spring tension. Furthermore, in the disengaging pin, a groove (not shown) is provided, which is circumferentially provided around the circumference of the diameter of the ball 22. In this case, this - not shown - groove is positioned so that when pressed-Ausrückstift 28, the balls 22 can recede into this - not shown - groove.
Die so ausgebildete Welle 2 ist in die Bohrung 1 1 des Gehäuses 1 eingebracht, wobei der durchmesservergrößerte Abschnitt 23 über die Dichtringe 6 an dem umlaufenden Steg 12 anliegt. Dabei ist die Welle 2 in den von dieser durchdrungenen Rillenkugellagern 4 drehbar gelagert und über zwei auf dem Gewin- deabschnitt 27 der Welle 2 hinter einer Passscheibe 71 aufgeschraubten Sechskantmuttern 7, die gegeneinander gekontert sind, axial fixiert. The thus formed shaft 2 is inserted into the bore 1 1 of the housing 1, wherein the enlarged diameter portion 23 abuts on the circumferential rib 12 via the sealing rings 6. In this case, the shaft 2 is rotatably mounted in the deep groove ball bearings 4 penetrated by the latter and has two rotors mounted on the same. Deabschnitt 27 of the shaft 2 behind a shim 71 screwed hex nuts 7, which are countered against each other, axially fixed.
Die Fräsrolle 3 ist im Wesentlichen zylindrisch ausgebildet. Auf ihrer Mantelflä- che 31 ist die Fräsrolle 3 mit - nicht dargestellten - Fräskonturen versehen. Axial ist in der Fräsrolle 3 eine Wellenaufnahme 32 in Art einer Sackbohrung eingebracht, in deren Innenwandung etwa mittig eine umlaufende Nut 33 angeordnet ist. Benachbart der Wellenaufnahme 32 sind stirnseitig in die Fräsrolle drei umlaufend um 120 Grad versetzt zueinander angeordnete Sackbohrungen 34 zur Aufnahme eines Passstiftes 25 eingebracht. In Verlängerung der Mantelfläche der Fräsrolle 18 ist weiterhin stirnseitig die Sackbohrungen 34 umschließend ein axial vorstehender umlaufender Steg 35 angeformt. The milling roller 3 is substantially cylindrical. On its lateral surface 31, the milling roller 3 is provided with milling contours (not shown). Axially in the milling roller 3, a shaft receiving 32 is introduced in the manner of a blind bore, in the inner wall approximately centrally a circumferential groove 33 is arranged. Adjacent to the shaft receptacle 32 are frontally into the milling roller three circumferentially offset by 120 degrees to each other arranged blind holes 34 for receiving a dowel pin 25 is introduced. In an extension of the lateral surface of the milling roller 18, the blind bores 34 are further formed on the front side surrounding an axially projecting circumferential ridge 35.
Die Fräsrolle 3 ist auf der Welle 2 befestigt, wobei das mit Bohrungen 21 verse- hene Ende der Welle 2 in die Wellenaufnahme 32 eingeschoben ist. Beim Einschieben der Welle 2 in die Wellenaufnahme 32 ist der Ausrückstift 28 in Richtung der Fräsrolle 3 eingedrückt, weshalb die in den Bohrungen 21 angeordneten Kugeln 22 in die - nicht dargestellte - Nut des Ausrückstifts 28 zurückweichen. Nach Einführen der Welle 2 in die Wellenaufnahme 32 wird der Ausrück- stift 28 durch die Rückstellkräfte der - nicht dargestellten - Feder in seine Ausgangslage zurückbewegt, wodurch gleichzeitig die Kugeln 22 aus der - nicht dargestellten - Nut des Ausrückstifts heraus durch die Bohrungen 21 in die umlaufende Nut 33 der Wellenaufnahme 32 gedrückt werden, wodurch die Welle 2 in der Wellenaufnahme 32 axial fixiert ist. Gleichzeitig werden beim Aufschie- ben der Fräsrolle 3 auf die Welle 2 die in der Bohrung 24 des durchmesservergrößerten Abschnitts 23 der Welle 2 befindlichen Passstifte 25 in die Sackbohrungen 24 der Fräsrolle 3 hineinbewegt, wodurch eine formschlüssige Verbindung zwischen Fräsrolle 3 und Welle 2 erzielt ist. Die Fräsrolle 3 ist somit formschlüssig mit der Welle 2 verbunden. The milling roller 3 is mounted on the shaft 2, whereby the end of the shaft 2 provided with bores 21 is inserted into the shaft receptacle 32. When inserting the shaft 2 in the shaft seat 32 of the disengaging pin 28 is pressed in the direction of the milling roller 3, which is why the arranged in the holes 21 balls 22 in the - not shown - groove of the disengaging pin 28 recede. After insertion of the shaft 2 in the shaft receiving 32 of the release pin 28 is moved back by the restoring forces of the spring - not shown - to its original position, thereby simultaneously the balls 22 from the - not shown - groove of the Ausrückstifts out through the holes 21 in the circumferential groove 33 of the shaft receiving 32 are pressed, whereby the shaft 2 is axially fixed in the shaft receiving 32. At the same time, when the milling roller 3 is pushed onto the shaft 2, the dowel pins 25 located in the bore 24 of the diameter-enlarged portion 23 of the shaft 2 are moved into the blind bores 24 of the milling roller 3, whereby a positive connection between the milling roller 3 and the shaft 2 is achieved. The milling roller 3 is thus positively connected to the shaft 2.
Zum Austausch einer verschlissenen Fräsrolle 3 wird der Ausrückstift 28 in Richtung der Fräsrolle 3 eingedrückt, wodurch die in dem Ausrückstift 28 eingebrachte - nicht dargestellte - Nut auf Höhe der Kugeln 22 bewegt wird. Anschließend kann die Fräsrolle 3 von der Welle 2 abgezogen werden, wobei Passstifte 25 aus den Sackbohrungen 24 bewegt werden und die Kugeln 22 in die - nicht dargestellte - umlaufende Nut des Ausrückstifts 28 zurückgedrängt werden. Eine neue Fräsrolle 3 kann nun in der zuvor beschriebenen Art und Weise auf die Welle 2 aufgebracht und nach Verbringung des Ausrückstifts 28 in seine Ausgangsposition über die Kugeln 22 mit der Welle 2 arretiert werden. In montierter Position wird der durchmesservergrößerte Abschnitt 23 der Welle 2 dabei von dem umlaufenden Steg 35 der Fräsrolle 3 umschlossen, wodurch eine gute Abschottung gegenüber Feinstaub erzielt ist. Die so ausgebildete Vorrichtung ist über die in dem Gehäuse angeordneten Gewindesackbohrungen 17 mit einer Aufnahmescheibe 5 für eine Bodenschleifmaschine mittels Schrauben befestigt, wie beispielhaft in Figur 5 dargestellt. Die Aufnahmescheibe 5 weist im Ausführungsbeispiel eine kleeblattartige Ausnehmung 51 zur formschlüssigen Verbindung mit einem Antrieb der - nicht dargestellten - Bodenschleifmaschine auf. Benachbart zu dieser Ausnehmung 51 sind jeweils um 120 Grad versetzt zueinander je vier Bohrungen 52 zur Befestigung jeweils des Gehäuses 1 der erfindungsgemäßen Vorrichtung mittels - nicht dargestellter - Schrauben vorgesehen. To replace a worn milling roller 3, the release pin 28 is pressed in the direction of the milling roller 3, whereby the introduced in the Ausrückstift 28 - not shown - - groove is moved at the level of the balls 22. Subsequently, the milling roller 3 can be deducted from the shaft 2, wherein Dowel pins 25 are moved out of the blind holes 24 and the balls 22 in the - not shown - circumferential groove of the disengaging pin 28 are pushed back. A new milling roller 3 can now be applied in the manner described above on the shaft 2 and locked after shipment of the disengaging pin 28 in its initial position on the balls 22 with the shaft 2. In the mounted position of the enlarged diameter portion 23 of the shaft 2 is thereby enclosed by the circumferential ridge 35 of the milling roller 3, whereby a good sealing against particulate matter is achieved. The device thus formed is fastened by means of screws via the threaded blind bores 17 arranged in the housing with a receiving disk 5 for a floor grinding machine, as shown by way of example in FIG. In the exemplary embodiment, the receiving disk 5 has a cloverleaf-like recess 51 for the positive connection with a drive of the bottom grinding machine (not shown). Adjacent to this recess 51 are each offset by 120 degrees to each other four holes 52 for fixing each of the housing 1 of the device according to the invention - by means of screws (not shown).

Claims

Patentansprüche claims
Vorrichtung zur Flächenbearbeitung von Böden und Belägen zur Montage an einer angetriebenen Aufnahmescheibe einer Bodenschleifmaschine, umfassend eine Rollenaufnahme mit einer drehbar gelagerten konturierten Fräsrolle, wobei die Rollenaufnahme eine Welle aufweist, auf der die kontu- rierte Fräsrolle angeordnet ist, dadurch gekennzeichnet, dass die Rollenaufnahme ein Gehäuse (1 ) aufweist, in der die Welle (2) drehbar gelagert ist, welche Welle (2) mit Mitteln zur werkzeuglos lösbaren Befestigung einer Fräsrolle (3) versehen ist. Apparatus for surface treatment of floors and coverings for mounting on a driven receiving disc of a floor grinding machine, comprising a roller receptacle with a rotatably mounted contoured milling roller, wherein the roller receptacle has a shaft on which the contoured milling roller is arranged, characterized in that the roller receptacle a Housing (1), in which the shaft (2) is rotatably mounted, which shaft (2) is provided with means for releasably releasable attachment of a milling roller (3).
Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Mittel zur werkzeuglos lösbaren Befestigung einer Fräsrolle (3) wenigstens eine, bevorzugt drei, besonders bevorzugt vier radial wenigstens teilweise aus der Mantelfläche der Welle heraus bewegbare Sperrelemente zum Eingriff in eine in der Fräsrolle (3) angeordneten Ausnehmung umfassen. Apparatus according to claim 1, characterized in that the means for releasably releasable attachment of a milling roller (3) at least one, preferably three, more preferably four radially at least partially out of the lateral surface of the shaft movable locking elements for engaging in a milling roller (3) arranged recess.
Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das wenigstens eine Sperrelement durch eine Kugel (22) gebildet ist, die in einer radialen Bohrung (21 ) der Welle (2) angeordnet ist, welche radiale Bohrung (21 ) in einer zentrisch in die Welle eingebrachten Axialbohrung (20) mündet, in der ein Ausrückstift (28) axial bewegbar angeordnet ist, über den die Kugel (22) durch die radiale (21 ) Bohrung herausbewegbar ist. Apparatus according to claim 2, characterized in that the at least one blocking element is formed by a ball (22) which is arranged in a radial bore (21) of the shaft (2), which radial bore (21) in a centrally into the shaft introduced axial bore (20) opens, in which a Ausrückstift (28) is arranged axially movable over which the ball (22) through the radial (21) bore is moved out.
Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die radiale Bohrung (21 ) zumindest bereichsweise einen kleineren Durchmesser als die Kugel (22) aufweist. Apparatus according to claim 3, characterized in that the radial bore (21) at least partially has a smaller diameter than the ball (22).
Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Ausrückstift (28) wenigstens einen durchmesserreduzierten Abschnitt aufweist, in den die wenigstens eine Kugel (22) zumindest bereichsweise radial hineinbewegbar ist. Apparatus according to claim 3 or 4, characterized in that the Ausrückstift (28) has at least one reduced diameter portion into which the at least one ball (22) is at least partially radially inwardly movable.
6. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass der Ausrückstift (28) in der Axialenbohrung (20) über eine Feder vorgespannt ist, aus welcher Axialbohrung (20) er endseitig hinausragt. 7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die in der Fräsrolle (3) angeordnete Ausnehmung zum Eingriff des wenigstens einen Sperrelements durch eine umlaufende Nut (33) gebildet ist. 8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass der durchmesserreduzierte Bereich des Ausrückstifts (28) durch eine in diesen eingebrachte umlaufende Nut gebildet ist. 6. Device according to one of claims 3 to 5, characterized in that the disengagement pin (28) in the axial bore (20) is biased by a spring from which axial bore (20) he protrudes end. 7. Device according to one of claims 2 to 6, characterized in that in the milling roller (3) arranged recess for engagement of the at least one locking element by a circumferential groove (33) is formed. 8. Device according to one of claims 5 to 7, characterized in that the reduced diameter portion of the disengaging pin (28) is formed by a circumferential groove inserted in this.
9. Vorrichtung nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Mittel zur werkzeuglos lösbaren Befestigung einer Fräsrolle (3) wenigstens einen Mitnehmer umfassen, der in eine korrespondierende Ausnehmung der Fräsrolle eingreift oder wenigstens eine Mitnehmeraufnahme umfassen, in die ein korrespondierender an der Fräsrolle (3) angeordneter Mitnehmer eingreift. 9. Device according to one of claims 2 to 8, characterized in that the means for tool-releasable attachment of a milling roller (3) comprise at least one driver which engages in a corresponding recess of the milling roller or at least comprise a driver receiving, in which a corresponding to the milling roller (3) arranged driver engages.
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass der Mitnehmer durch eine unrunde, bevorzugt Vieleckige Außenkontur eines endseiti- gen Bereichs der Welle (2) gebildet ist, die in eine mit diesem korrespondierende Wellenaufnahme der Fräsrolle (3) eingreift. 10. The device according to claim 9, characterized in that the driver is formed by a non-circular, preferably polygonal outer contour of a endseiti- gene region of the shaft (2) which engages in a corresponding thereto shaft receiving the Fräsrolle (3).
1 1 . Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Welle (2) einen gegenüber dem freien Ende der Welle (2) durchmesservergrößerten Abschnitt (23) aufweist, durch den ein Absatz gebildet ist, an dem wenigstens zwei, bevorzugt drei axial auskragende bevorzugt zylinderförmige Mit- nehmer (25) angeordnet sind, die in hiermit korrespondierende Ausnehmungen (34) der Fräsrolle (3) eingreifen. 1 1. Apparatus according to claim 9, characterized in that the shaft (2) has a relation to the free end of the shaft (2) enlarged diameter portion (23) through which a shoulder is formed on the at least two, preferably three axially projecting preferably cylindrical Mit - Receivers (25) are arranged, which engage in corresponding recesses (34) of the milling roller (3).
12. Vorrichtung nach Anspruch 1 1 , dadurch gekennzeichnet, dass an der Fräsrolle (3) stirnseitig ein umlaufender Steg (35) angeformt ist, der den durchmesservergrößerten Abschnitt (23) der Welle (2) umschließt. 13. Vorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (1 ) den Bereich der Lagerung der Welle (2) staubdicht umschließend ausgebildet ist. 12. The apparatus of claim 1 1, characterized in that on the milling roller (3) frontally a circumferential web (35) is formed, which surrounds the enlarged diameter portion (23) of the shaft (2). 13. Device according to one of the preceding claims, characterized in that the housing (1) the area of the bearing of the shaft (2) is formed dust-tight enclosing.
14. Fräsrolle zum Einsatz in einer Vorrichtung nach einem der vorgenannten Ansprüche, mit einen zylindrischen Basiskörper, der eine zentrische Wellenaufnahme aufweist und dessen Mantelfläche mit einer Fräskontur versehen ist, dadurch gekennzeichnet, dass innerhalb der Wellenaufnahme (32) eine umlaufende Nut (33) zum Eingriff von Sperrelementen einer einzubringenden Welle (2) angeordnet ist. 14. Milling roller for use in a device according to one of the preceding claims, comprising a cylindrical base body having a central shaft receiving and the lateral surface is provided with a milling contour, characterized in that within the shaft receiving (32) has a circumferential groove (33) for Engagement of locking elements of a shaft to be introduced (2) is arranged.
15. Fräsrolle nach Anspruch 13, dadurch gekennzeichnet, dass die Wellenaufnahme (32) in Art einer Sackbohrung ausgebildet ist. 15. Milling roller according to claim 13, characterized in that the shaft receptacle (32) is designed in the manner of a blind bore.
16. Fräsrolle nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die Wellenaufnahme (32) einen unrunden, vorzugsweise in Art eines Vielkants ausgebildeten Querschnitt aufweist. 16. Milling roll according to claim 13 or 14, characterized in that the shaft receptacle (32) has a non-round, preferably designed in the manner of a polygon cross-section.
17. Fräsrolle nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass in die Fräsrolle (3) auf ihrer Stirnseite benachbart der Wellenaufnahme (32) wenigstens eine, bevorzugt drei Bohrungen (34) zur Aufnahme von an einer aufzunehmenden Welle (2) angeordneten Mitnehmern (25) eingebracht sind. 17. Milling roller according to one of claims 13 to 15, characterized in that in the milling roller (3) on its front side adjacent the shaft receptacle (32) at least one, preferably three bores (34) for receiving on a male shaft (2) Carrier (25) are introduced.
18. Fräsrolle nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass auf der Stirnseite der Fräsrolle (3) benachbart der Wellenaufnahme18. Milling roller according to one of claims 13 to 15, characterized in that on the end face of the milling roller (3) adjacent to the shaft receiving
(32) wenigstens ein, bevorzugt drei vorzugsweise zylindrisch ausgebildete Mitnehmerstifte (25) angeordnet sind. (32) at least one, preferably three preferably cylindrical trained driving pins (25) are arranged.
19. Fräsrolle nach einem der Ansprüche 13 bis 18, dadurch gekennzeichnet, dass stirnseitig die Wellenaufnahme (32) umschließend ein axial vorstehender umlaufender Steg (35) angeformt ist. 20. Aufnahmescheibe für eine Bodenschleifmaschine, dadurch gekennzeichnet, dass an dieser auf einer Seite wenigstens drei Vorrichtungen nach einem der Ansprüche 1 bis 13 angeordnet sind. 19. Milling roller according to one of claims 13 to 18, characterized in that the end face of the shaft receiving (32) enclosing an axially projecting circumferential web (35) is integrally formed. 20. pick-up disc for a floor grinding machine, characterized in that at least three devices are arranged according to one of claims 1 to 13 on this side.
EP13818704.2A 2013-12-12 2013-12-12 Device for the surface processing of floors and coverings Not-in-force EP2897774B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201330418A SI2897774T1 (en) 2013-12-12 2013-12-12 Device for the surface processing of floors and coverings
RS20161109A RS55445B1 (en) 2013-12-12 2013-12-12 Device for the surface processing of floors and coverings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/076424 WO2015086081A1 (en) 2013-12-12 2013-12-12 Device for the surface processing of floors and coverings

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EP2897774A1 true EP2897774A1 (en) 2015-07-29
EP2897774B1 EP2897774B1 (en) 2016-09-21

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EP13818704.2A Not-in-force EP2897774B1 (en) 2013-12-12 2013-12-12 Device for the surface processing of floors and coverings

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EP (1) EP2897774B1 (en)
DK (1) DK2897774T3 (en)
ES (1) ES2606686T3 (en)
HU (1) HUE031324T2 (en)
PL (1) PL2897774T3 (en)
PT (1) PT2897774T (en)
RS (1) RS55445B1 (en)
SI (1) SI2897774T1 (en)
WO (1) WO2015086081A1 (en)

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Publication number Priority date Publication date Assignee Title
CN109676466B (en) * 2019-01-25 2023-11-07 浙江永耀机械科技有限公司 Feeding mechanism of special-shaped crystal drilling, grinding and polishing machine convenient to disassemble and assemble
CN110847936B (en) * 2019-12-19 2020-12-01 长沙理工大学 Intelligence tunnel section levels device

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Publication number Priority date Publication date Assignee Title
NL282678A (en) * 1961-09-12
DE3123597A1 (en) * 1981-06-13 1982-12-30 Hans 8592 Wunsiedel Kammerer GRINDING HEAD FOR HARD ROCK
ES1020104Y (en) * 1992-02-11 1993-07-16 Moya Milian Concepcion PERFECTED APPARATUS FOR GRINDING SURFACES OF PIECES OF STONE OR SIMILAR MATERIALS.
DE69308702T2 (en) * 1992-09-18 1997-10-30 Lupato Antonio Er S R L Hand-held hinge device with rotating tools
BRPI1007755A2 (en) * 2009-05-13 2020-12-01 3M Innovative Properties Company polishing cap
BRPI1007756B1 (en) * 2009-05-13 2020-06-23 3M Innovative Propereties Company QUICK RELEASE CONNECTOR FOR A POWER TOOL ACCESSORY
WO2010132626A1 (en) * 2009-05-13 2010-11-18 3M Innovative Properties Company Backing plate for a buffing pad

Non-Patent Citations (1)

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Title
See references of WO2015086081A1 *

Also Published As

Publication number Publication date
ES2606686T3 (en) 2017-03-27
WO2015086081A1 (en) 2015-06-18
PT2897774T (en) 2016-12-14
HUE031324T2 (en) 2017-07-28
RS55445B1 (en) 2017-04-28
SI2897774T1 (en) 2017-01-31
PL2897774T3 (en) 2017-04-28
DK2897774T3 (en) 2017-01-16
EP2897774B1 (en) 2016-09-21

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