EP2897774B1 - Vorrichtung zur flächenbearbeitung von böden und belägen - Google Patents

Vorrichtung zur flächenbearbeitung von böden und belägen Download PDF

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Publication number
EP2897774B1
EP2897774B1 EP13818704.2A EP13818704A EP2897774B1 EP 2897774 B1 EP2897774 B1 EP 2897774B1 EP 13818704 A EP13818704 A EP 13818704A EP 2897774 B1 EP2897774 B1 EP 2897774B1
Authority
EP
European Patent Office
Prior art keywords
shaft
milling roller
roller
ball
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.)
Not-in-force
Application number
EP13818704.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2897774A1 (de
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/sl
Priority to RS20161109A priority patent/RS55445B1/sr
Publication of EP2897774A1 publication Critical patent/EP2897774A1/de
Application granted granted Critical
Publication of EP2897774B1 publication Critical patent/EP2897774B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 disk of a floor grinding machine according to the preamble of patent claim 1.
  • Such a device shows the EP 0067402 .
  • the receiving discs with abrasive carriers or diamond-occupied discs are equipped. Good results are achieved in recent times in that the receiving disc with contoured milling rollers, so-called “Bush Hammer” are fitted, which are rotatably mounted on a roller mount, which are attached to the bottom of the bottom facing the receiving disc.
  • Such bush hammer discs are sold, for example, by the Italian company Klindex S.r, l under the Internet address www.klindex.it.
  • the milling rollers are made of hollow cylindrical hardened milling bodies.
  • 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 in the penetration of particulate matter is avoided in the storage. According to the invention, this object is solved by the features of the characterizing part of patent claim 1.
  • 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 tool-free releasable attachment of a milling roller at least one, preferably three, more preferably four radially at least partially out of the lateral surface of the shaft considered in the milling roller, is an axial fixation of the milling roller on the shaft 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.
  • the at least one blocking element is formed by a ball which is arranged in a radial bore of the shaft, which opens radial bore in a centrally introduced into the shaft axial bore in which a release pin is arranged axially movable over the Sphere is partially moved out through the radial bore.
  • the radial bore at least partially on a smaller 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.
  • 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 include several Carrier, which engage in a corresponding recess of the milling roller.
  • the shaft has an enlarged diameter relative to the free end of the shaft portion through which a shoulder is formed on which at least two, preferably three axially projecting, preferably cylindrical drivers are arranged, which engage in corresponding recesses of the milling roller.
  • a driver is additionally by a non-round, preferred polygonal contour of an end region of the shaft formed, which engages in a corresponding with this shaft receiving the Fräsrolle.
  • 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 shaft receiving the milling roller is preferably formed by a blind hole.
  • a one-sided closed tool holder is achieved, whereby the entry of fine dust during tillage is counteracted.
  • the shaft receiving a non-circular, preferably designed in the manner of a polygonal cross section. In this way, a positive connection of the milling roller with a correspondingly corresponding shaft can be achieved, whereby a radial fixation is effected.
  • the end of the shaft receiving an axially projecting circumferential web is integrally formed.
  • 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 11 is introduced, in which about a 2/3 of its length, a circumferential ridge 12 is formed, wherein the bore 11 is formed enlarged in diameter subsequent to the web 12.
  • This enlarged diameter portion 111 serves to receive sealing rings 6 for dust-tight sealing of the housing 1.
  • On its the diametrically enlarged portion 111 opposite side of the web 12 are in the bore 11 two successively arranged deep groove ball bearings 4 for pivotal mounting of the shaft 2 introduced.
  • the end of the housing 1 is closed by a cover 13 which is provided with a bore 14 corresponding to the bore 11 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 111 of the bore 11 abuts.
  • the cover 13 is screwed with washers 81 provided with hexagonal screws 8, which are performed by introduced into the cover 13 holes 16, arranged in the housing 1 threaded holes 17.
  • 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.
  • 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.
  • the shaft 2 has a threaded portion 27 provided with an external thread.
  • a release pin 28 is introduced in the axial bore 20 of the shaft 2.
  • the Ausschreibstattengult 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.
  • the thus formed shaft 2 is inserted into the bore 11 of the housing 1, wherein the enlarged diameter portion 23 abuts on the circumferential web 12 via the sealing rings 6.
  • the shaft 2 is rotatably mounted in the penetrated by this deep groove ball bearings 4 and two on the threaded portion 27 of the shaft 2 behind a shim 71 screwed hex nuts 7, which are counter to each other, axially fixed.
  • the milling roller 3 is substantially cylindrical. On its lateral surface 31, the milling roller 3 with - not shown - milling contours provided. 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, the blind bores 34 are further formed on the front side surrounding an axially projecting circumferential web 35.
  • the milling roller 3 is mounted on the shaft 2, wherein the bore 21 provided with the end of the shaft 2 is inserted into the shaft receiving 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 shaft 2 in the shaft receiving 32 of the disengaging pin 28 is moved back by the restoring forces - not shown - spring to its original position, thereby simultaneously the balls 22 from the - not shown - groove of the disengaging pin 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.
  • 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 34 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 formed in this way is fastened by means of screws via the threaded blind bores 18 arranged in the housing with a receiving disk 5 for a floor grinding machine, as is shown by way of example in FIG FIG. 6 shown.
  • 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)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mining & Mineral Resources (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)
EP13818704.2A 2013-12-12 2013-12-12 Vorrichtung zur flächenbearbeitung von böden und belägen Not-in-force EP2897774B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201330418A SI2897774T1 (sl) 2013-12-12 2013-12-12 Naprava za površinsko obdelavo tal in oblog
RS20161109A RS55445B1 (sr) 2013-12-12 2013-12-12 Uređaj za površinsku obradu podova i pokrivki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/076424 WO2015086081A1 (de) 2013-12-12 2013-12-12 Vorrichtung zur flächenbearbeitung von böden und belägen

Publications (2)

Publication Number Publication Date
EP2897774A1 EP2897774A1 (de) 2015-07-29
EP2897774B1 true EP2897774B1 (de) 2016-09-21

Family

ID=49943327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13818704.2A Not-in-force EP2897774B1 (de) 2013-12-12 2013-12-12 Vorrichtung zur flächenbearbeitung von böden und belägen

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676466B (zh) * 2019-01-25 2023-11-07 浙江永耀机械科技有限公司 便于拆装的异形晶钻磨抛机上料机构
CN110847936B (zh) * 2019-12-19 2020-12-01 长沙理工大学 一种智能隧道断面平整装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL282678A (es) * 1961-09-12
DE3123597A1 (de) * 1981-06-13 1982-12-30 Hans 8592 Wunsiedel Kammerer Schleifkopf fuer hartgestein
ES1020104Y (es) * 1992-02-11 1993-07-16 Moya Milian Concepcion Aparato perfeccionado para desbastar superficies de piezas de piedra o de materiales similares.
EP0588436B1 (en) * 1992-09-18 1997-03-12 LUPATO ANTONIO ER. S.r.l. Hand-held rotary bushhammering apparatus
US9415483B2 (en) * 2009-05-13 2016-08-16 3M Innovative Properties Company Tufted buffing pad
BRPI1007756B1 (pt) * 2009-05-13 2020-06-23 3M Innovative Propereties Company Conector de liberação rápida para um acessório de ferramenta elétrica
EP2429763A1 (en) * 2009-05-13 2012-03-21 3M Innovative Properties Company Backing plate for a buffing pad

Also Published As

Publication number Publication date
PT2897774T (pt) 2016-12-14
DK2897774T3 (en) 2017-01-16
ES2606686T3 (es) 2017-03-27
WO2015086081A1 (de) 2015-06-18
PL2897774T3 (pl) 2017-04-28
HUE031324T2 (en) 2017-07-28
EP2897774A1 (de) 2015-07-29
SI2897774T1 (sl) 2017-01-31
RS55445B1 (sr) 2017-04-28

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