EP3266343B1 - Brush unit for a brush roller for an abrasive blasting installation - Google Patents

Brush unit for a brush roller for an abrasive blasting installation Download PDF

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Publication number
EP3266343B1
EP3266343B1 EP17178106.5A EP17178106A EP3266343B1 EP 3266343 B1 EP3266343 B1 EP 3266343B1 EP 17178106 A EP17178106 A EP 17178106A EP 3266343 B1 EP3266343 B1 EP 3266343B1
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EP
European Patent Office
Prior art keywords
carrier
brush
recesses
ring segments
rings
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Active
Application number
EP17178106.5A
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German (de)
French (fr)
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EP3266343A1 (en
Inventor
Berthold Kampen
Karl-Heinz Konert
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Wheelabrator Group GmbH
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Wheelabrator Group GmbH
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Priority to PL17178106T priority Critical patent/PL3266343T3/en
Publication of EP3266343A1 publication Critical patent/EP3266343A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/001—Cylindrical or annular brush bodies
    • A46B13/005—Cylindrical or annular brush bodies made up of a series of longitudinal strips or segments
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/30—Brushes for cleaning or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • the invention relates to a brush unit for a brush roller for a centrifugal blasting machine with the features of the preamble of claims 1 and 4.
  • Such a brush unit is needed in particular in a roller conveyor blast machine in which steel sheets, steel profiles or other workpieces are treated in continuous operation.
  • a roller conveyor blasting machine is in each case in the DE 92 04 253 U1 and the DE 1 652 255 A described.
  • smooth and profiled surfaces can be automatically deburred, descaled or de-rusted.
  • the blasting agent remains after treatment on the run over the roller conveyor through the blasting chamber workpiece and must be removed from it before it leaves the chamber.
  • At least one brush unit is needed, which is mounted on a driven brush roller.
  • the brush unit is subjected to high loads because the blasting abrasive is abrasive and because a firm contact of the bristles with the surface of the workpiece is required to achieve the desired cleaning effect. Accordingly, the bristles of the brush units wear with increasing duration of use, so that a regular replacement of the brush units is required.
  • the brush is to be considered that within the blasting chamber very cramped space exist and that a further opening of the blasting chamber z. B. by removing trim parts and removal of other units for time and cost reasons is not possible.
  • the installer must therefore crawl into the blasting chamber contaminated with blasting agent, there remove the brush units from the brush shaft and then mount new brush units.
  • the brush elements are divided into at least two halves, which are bolted together and / or with the shaft. Under the described confined working conditions in dusty environment, the installer must solve the glands, which may also be trapped by penetrated abrasive. To mount a new brush unit, it is then necessary to place the two halves, including the carrier shaft to each other and restore the fittings. Given the length and weight of a single brush unit, positioning, holding and bolting can not be done by a single installer. Despite the already cramped space is therefore usually a second person necessary.
  • a brush roller in which a roller body is formed of a plurality of segments. Profiles are provided on the outer circumference in order to be able to receive brush strips in a form-fitting manner. For assembly and disassembly screw connections must be made or solved again. In addition, the segments are solid and therefore very heavy.
  • the DE 20 2004 021 149 U1 discloses a brush roller having a brush body on the outer periphery of which the brush strips are fastened via a keder connection. Multiple brush body segments can be slid onto a common shaft around the brush body train. However, a change of the brush body is possible only after removal of the complete brush roller, because they can only be removed from the shaft. For the above-described use in confined spaces, the brush roller is therefore also not suitable.
  • the object of the present invention is to facilitate the assembly and disassembly of a brush unit on a brush roller for a centrifugal blasting machine clearly.
  • a respective connector is provided, which is produced by means of pin or rod elements, which are aligned parallel to the central axis of the brush unit or the carrier shaft. These engage in connecting elements that bridge the separation point.
  • the pin elements are simply formed as a projection on the receiving profiles of the brush strip elements, to which also the bristles of the brush strip elements are anchored.
  • the recording profiles of the brush strip elements are therefore chosen slightly longer than corresponds to the distance between the outwardly facing end faces of the carrier rings.
  • the connecting element is attached, which bridges the separation point.
  • the pin elements or the projections of the receiving profiles of the brush strips engage in a common connecting element which is inserted between two adjacent support rings.
  • the connecting elements preferably cover only a smaller sector on the carrier ring, so that although a plurality of pin elements can be set for a secure connection, but that between two adjacent carrier rings also remains a gap outside of the connecting elements.
  • the gap can be used to separate brush units from each other. In this case, the pins are pulled out of the connecting elements, and the brush unit can be disassembled again. Since only axial movement of the pin members is required for assembly and disassembly, disassembly can be easily performed even with stuck pins via an expeller and a hammer.
  • a particularly preferred embodiment of the invention provides a specially designed unit of carrier shaft and at least one brush unit according to the invention, in which each half of the brush unit can be snapped onto the carrier shaft and held above it on the carrier shaft until the other half is attached. Only then is the final connection established via the pin elements and the connecting elements.
  • the carrier ring segments are preferably on the outer surface of the carrier shaft at opposite diameter positions in each case two Round profiles welded in axial extension next to each other.
  • each locking recesses are formed very close to the separation point, so that when placing one half of the brush unit slide the carrier rings with their recesses on one of the welded profile bars and engage behind it.
  • the carrier ring segments are preferably made of plastic, which also significantly reduces the weight of the brush unit.
  • at least one relief slot is provided with an undercut on the inner circumference, to facilitate the spreading of the carrier ring segment at the moment of detent.
  • a further solution according to the invention is provided by a brush unit with the features of claim 4, in which no snap-in connections are used and also no direct connection between the complementary carrier ring segments is made, but in the rods with preferably round cross-section through the carrier ring segments and through with the carrier wave connected recordings are plugged.
  • FIG. 1 shows a brush roller 100, in which a total of four brush units 10 are positioned side by side on a support shaft 40.
  • Each brush unit 10 comprises two carrier rings 11, which are arranged at a distance from each other. Between the carrier rings 11 extend a plurality of brush strip elements 20, of which only one is shown.
  • Each brush strip element 20 has a receiving profile 21 with a kederförmigen thickening and a plurality of bristles 22 which are anchored in the receiving profile 21.
  • the support rings 11 have on their outer circumference a plurality of recesses 14, in which the receiving profiles 21 of the brush strip elements 20 are used. Between the support rings 11 adjacent brush units 10 connecting elements 30 are inserted.
  • Each carrier ring 11 is divided into two carrier ring segments 12.
  • a pair of two adjacent round profiles 42 is applied on the outer jacket 41 of the carrier shaft 40.
  • a similar pair is attached to the non-visible back.
  • the carrier ring segments 12 can be successively snapped onto the outer shell 41.
  • the brush units 10 are prepared so far for mounting, so that all the recesses 14 in the carrier ring segments 12 are already provided with brush strip elements 20.
  • each brush unit 10 can be separated via the separation of the carrier rings 11 into two half-shell-shaped parts.
  • a respective end ring 50 is mounted, which covers the recesses 14 and thus secures the axial position of the receiving profiles 21.
  • FIG. 2 the left end of the support shaft 40 is shown enlarged with the local brush unit 10.
  • the formation of the carrier ring segments 12 is clearly visible. These have on the outer circumference keyhole-shaped recesses 14 and on the inner circumference to the separation point T out in each case a latching recess 15 for connection to the profile bars 42 on the outer jacket 41 of the support shaft 40th
  • the receiving profile 21, in which the bristles 22 are anchored projects, each with a projection 23, over the end faces of the carrier rings 11.
  • a part of the receiving profile 21 is projected with projection 23 so that the supernatant 23 can be seen; this engages approximately to half the width in the recess of the connecting element 30 a.
  • a projection 23 can then also engage, so that two adjacent carrier rings 11 are secured by a common connecting element 30.
  • FIG. 3 shows a cross section through the brush shaft 100 in the region of two connecting elements 30, wherein in particular the position of the two adjacent profile bars 42 and the recesses 15 can be seen.
  • FIG. 4 shows a carrier ring segment 12 in a perspective view. It is an arcuate body, in particular made of plastic. This extends over an arc angle of 180 °. On the outer circumference a plurality of similar recesses 14 for receiving the receiving profile 21 of the brush strip elements 20 are formed. On the inner circumference locking recesses 15 are provided for locking onto the shaft 40, and a relief groove 13 to increase the deformability during snapping.
  • connection element 30 In FIG. 5 a single connection element 30 is shown in perspective. It covers a much smaller circular arc, since it is only the separation point T between two indicated by the dashed line Carrier ring segments 12 must bridge. It has on the outer circumference recesses 31 which are congruent with the recesses 14 of the carrier ring segment 12 in terms of shape and arrangement. In the illustrated embodiment, a total of four recesses 31 are provided for connection, so two for each end of the carrier ring segment 12th
  • FIG. 6 shows a second embodiment of a brush roller 100 ', in which a connection of the brush units 10' can be made via axially insertable rods 23 '.
  • the brush units 10 ' here too have at least two carrier ring segments 12', which on their outer circumference have the same keyhole-shaped recesses for receiving brush strips as in the previously described first embodiment of the brush roller 100.
  • the brush units 10 ' can thus be divided in half. For mounting, they are placed on the top of the support shaft 40 'and secured by two inserted rods 23', which extend both through the recesses in the support rings 11 'as well as through the recesses in the receiving rings 30'. After the plug-in assembly of the first half of the brush unit 10 ', the support shaft 40' can be rotated by 180 °, the previously mounted half now on the rods 23 'hangs. The second half of the brush unit 10 'is mounted in the same way. Finally, a respective end ring 50 'is attached to each end face of the carrier shaft 40'. The rods 23 'are axially fixed between the double ended end rings 50'.

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  • Brushes (AREA)

Description

Die Erfindung betrifft eine Bürsteneinheit für eine Bürstenwalze für eine Schleuderstrahlanlage mit den Merkmalen des Oberbegriffs der Ansprüche 1 und 4.The invention relates to a brush unit for a brush roller for a centrifugal blasting machine with the features of the preamble of claims 1 and 4.

Eine solche Bürsteneinheit wird insbesondere in einer Rollenbahn-Strahlanlage benötigt, in welcher Stahlbleche, Stahlprofile oder andere Werkstücke im Durchlaufbetrieb behandelt werden. Eine solche Rollenbahn-Strahlanlage ist jeweils in der DE 92 04 253 U1 und der DE 1 652 255 A beschrieben. Durch die Verwendung einer Schleuderstrahlanlage können glatte und auch profilierte Oberflächen automatisiert entgratet, entzundert oder entrostet werden. Das Strahlmittel bleibt nach der Behandlung auf dem über die Rollenbahn durch die Strahlkammer geführten Werkstück liegen und muss davon entfernt werden, bevor es die Kammer verlässt.Such a brush unit is needed in particular in a roller conveyor blast machine in which steel sheets, steel profiles or other workpieces are treated in continuous operation. Such a roller conveyor blasting machine is in each case in the DE 92 04 253 U1 and the DE 1 652 255 A described. By using a centrifugal blasting machine, smooth and profiled surfaces can be automatically deburred, descaled or de-rusted. The blasting agent remains after treatment on the run over the roller conveyor through the blasting chamber workpiece and must be removed from it before it leaves the chamber.

Hierzu wird wenigstens eine Bürsteneinheit benötigt, die auf einer angetriebenen Bürstenwalze montiert ist. Die Bürsteneinheit ist hohen Belastungen ausgesetzt, da das Strahlmittel abrasiv wirkt und da ein fester Kontakt der Borsten mit der Oberfläche des Werkstücks erforderlich ist, um die gewünschte Reinigungswirkung zu erzielen. Dementsprechend verschleißen die Borsten der Bürsteneinheiten mit zunehmender Benutzungsdauer, so dass ein regelmäßiger Austausch der Bürsteneinheiten erforderlich ist. Beim Bürstenwechsel ist zu berücksichtigen, dass innerhalb der Strahlkammer sehr beengte Platzverhältnisse bestehen und dass eine weitere Öffnung der Strahlkammer z. B. durch Abnahme von Verkleidungsteilen und Ausbau sonstiger Einheiten aus Zeit- und Kostengründen nicht möglich ist. Der Monteur muss daher in die mit Strahlmittel verunreinigte Strahlkammer hineinkriechen, dort die Bürsteneinheiten von der Bürstenwelle entfernen und anschließend neue Bürsteneinheiten montieren. Um die Bürsteneinheiten abnehmen und montieren zu können, ohne jedoch die komplette Bürstenwelle ausbauen zu müssen, sind die Bürstenelemente in wenigstens zwei Hälften geteilt, die miteinander und/oder mit der Welle verschraubt sind. Unter den geschilderten beengten Arbeitsverhältnissen in staubiger Umgebung muss der Monteur die Verschraubungen lösen, die durch eingedrungenes Strahlmittel möglicherweise auch festsitzen. Zur Montage einer neuen Bürsteneinheit ist es dann erforderlich, die beiden Hälften unter Einschluss der Trägerwelle aneinander zu legen und die Verschraubungen wiederherzustellen. Angesichts der Länge und des Gewichts einer einzelnen Bürsteneinheit kann das Positionieren, Halten und Verschrauben nicht von einem einzelnen Monteur erledigt werden. Trotz der ohnehin beengten Platzverhältnisse ist daher meist eine zweite Person notwendig.For this purpose, at least one brush unit is needed, which is mounted on a driven brush roller. The brush unit is subjected to high loads because the blasting abrasive is abrasive and because a firm contact of the bristles with the surface of the workpiece is required to achieve the desired cleaning effect. Accordingly, the bristles of the brush units wear with increasing duration of use, so that a regular replacement of the brush units is required. When changing the brush is to be considered that within the blasting chamber very cramped space exist and that a further opening of the blasting chamber z. B. by removing trim parts and removal of other units for time and cost reasons is not possible. The installer must therefore crawl into the blasting chamber contaminated with blasting agent, there remove the brush units from the brush shaft and then mount new brush units. In order to remove and assemble the brush units, but without having to remove the complete brush shaft, the brush elements are divided into at least two halves, which are bolted together and / or with the shaft. Under the described confined working conditions in dusty environment, the installer must solve the glands, which may also be trapped by penetrated abrasive. To mount a new brush unit, it is then necessary to place the two halves, including the carrier shaft to each other and restore the fittings. Given the length and weight of a single brush unit, positioning, holding and bolting can not be done by a single installer. Despite the already cramped space is therefore usually a second person necessary.

In der US 3 533 125 A ist eine Bürstenwalze beschrieben, bei denen ein Walzenkörper aus mehreren Segmenten gebildet ist. Am Außenumfang sind Profilierungen vorgesehen, um Bürstenstreifen formschlüssig aufnehmen zu können. Zur Montage und Demontage müssen wieder Verschraubungen hergestellt bzw. gelöst werden. Außerdem sind die Segmente massiv ausgebildet und daher sehr schwer.In the US Pat. No. 3,533,125 A a brush roller is described in which a roller body is formed of a plurality of segments. Profiles are provided on the outer circumference in order to be able to receive brush strips in a form-fitting manner. For assembly and disassembly screw connections must be made or solved again. In addition, the segments are solid and therefore very heavy.

Die DE 20 2004 021 149 U1 offenbart eine Bürstenwalze mit einem Bürstenkörper, an dessen Außenumfang die Bürstenstreifen über eine Kederverbindung befestigt werden. Mehrere Bürstenkörper-Segmente können auf eine gemeinsame Welle aufgeschoben werden, um den Bürstenkörper auszubilden. Allerdings ist ein Wechsel der Bürstenkörper nur nach Ausbau der kompletten Bürstenwalze möglich, weil sie nur so von der Welle abgenommen werden können. Für die vorstehend beschrieben Verwendung unter beengten Platzverhältnissen ist die Bürstenwalze daher ebenfalls nicht geeignet.The DE 20 2004 021 149 U1 discloses a brush roller having a brush body on the outer periphery of which the brush strips are fastened via a keder connection. Multiple brush body segments can be slid onto a common shaft around the brush body train. However, a change of the brush body is possible only after removal of the complete brush roller, because they can only be removed from the shaft. For the above-described use in confined spaces, the brush roller is therefore also not suitable.

Die Aufgabe der vorliegenden Erfindung besteht darin, die Montage und Demontage einer Bürsteneinheit an einer Bürstenwalze für eine Schleuderstrahlanlage deutlich zu erleichtern.The object of the present invention is to facilitate the assembly and disassembly of a brush unit on a brush roller for a centrifugal blasting machine clearly.

Diese Aufgabe wird erfindungsgemäß durch eine Bürsteneinheit mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a brush unit with the features of claim 1.

Statt der unter den gegebenen Umständen schwierigen Verschraubung zwischen den Teilen der Bürsteneinheit ist erfindungsgemäß je eine Steckverbindung vorgesehen, die mittels Stift- oder Stangenelementen hergestellt wird, welche parallel zur Mittelachse der Bürsteneinheit beziehungsweise der Trägerwelle ausgerichtet sind. Diese greifen in Verbindungselemente ein, die die Trennstelle überbrücken.Instead of the difficult under the given circumstances screwing between the parts of the brush unit according to the invention a respective connector is provided, which is produced by means of pin or rod elements, which are aligned parallel to the central axis of the brush unit or the carrier shaft. These engage in connecting elements that bridge the separation point.

Bei einer Teilung der Trägerringe in zwei Trägerringsegmente und damit einer Teilung der Bürsteneinheit in zwei Halbschalen, werden zwei Verbindungselemente benötigt. Möglich ist auch eine Aufteilung z. B. in drei oder vier Trägerringsegmente.In a division of the carrier rings in two carrier ring segments and thus a division of the brush unit in two half-shells, two connecting elements are required. It is also possible a division z. B. in three or four carrier ring segments.

Vorzugsweise sind die Stiftelemente einfach als Überstand an den Aufnahmeprofilen der Bürstenstreifenelemente ausgebildet, an welchen auch die Borsten der Bürstenstreifenelemente verankert sind. Die Aufnahmeprofile der Bürstenstreifenelemente werden also etwas länger gewählt als es dem Abstand zwischen den nach außen weisenden Stirnseiten der Trägerringe entspricht. Über diese Überstände wird das Verbindungselement befestigt, das die Trennstelle überbrückt.Preferably, the pin elements are simply formed as a projection on the receiving profiles of the brush strip elements, to which also the bristles of the brush strip elements are anchored. The recording profiles of the brush strip elements are therefore chosen slightly longer than corresponds to the distance between the outwardly facing end faces of the carrier rings. About these projections, the connecting element is attached, which bridges the separation point.

Werden mehrere Bürsteneinheiten nebeneinander auf einer Trägerwelle angebracht, um eine größere Arbeitsbreite zu erhalten, so greifen die Stiftelemente beziehungsweise die Überstände der Aufnahmeprofile der Bürstenstreifen in ein gemeinsames Verbindungselement ein, das zwischen zwei benachbarten Trägerringen eingefügt ist.If a plurality of brush units are mounted side by side on a support shaft in order to obtain a larger working width, the pin elements or the projections of the receiving profiles of the brush strips engage in a common connecting element which is inserted between two adjacent support rings.

Die Verbindungselemente decken vorzugsweise nur einen kleineren Sektor am Trägerring ab, sodass zwar mehrere Stiftelemente für eine sichere Verbindung gesetzt werden können, dass aber zwischen zwei benachbarten Trägerringen auch noch ein Spalt außerhalb der Verbindungselemente verbleibt. Der Spalt kann genutzt werden, um Bürsteneinheiten voneinander abzuhebein. Dabei werden auch die Stifte aus den Verbindungselementen gezogen, und die Bürsteneinheit kann wieder zerlegt werden. Da nur eine axiale Bewegung der Stiftelemente zur Montage und Demontage erforderlich ist, kann die Demontage selbst bei festsitzenden Stiften über einen Austreiber und einen Hammer leicht durchgeführt werden.The connecting elements preferably cover only a smaller sector on the carrier ring, so that although a plurality of pin elements can be set for a secure connection, but that between two adjacent carrier rings also remains a gap outside of the connecting elements. The gap can be used to separate brush units from each other. In this case, the pins are pulled out of the connecting elements, and the brush unit can be disassembled again. Since only axial movement of the pin members is required for assembly and disassembly, disassembly can be easily performed even with stuck pins via an expeller and a hammer.

Bereits die zuvor beschriebene Grundform einer erfindungsgemäßen Bürsteneinheit besitzt somit den Vorteil einer erleichterten Montage und Demontage, wobei jedoch mitunter noch eine Hilfsperson erforderlich ist, um die wenigstens zwei Einzelteile der Bürsteneinheit zu positionieren und zu halten bis die Stifte in die Verbindungselemente eingeführt sind.Even the above-described basic form of a brush unit according to the invention thus has the advantage of facilitated assembly and disassembly, but sometimes an auxiliary person is still required to position the at least two individual parts of the brush unit and hold until the pins are inserted into the connecting elements.

Daher sieht eine besonders bevorzugte Ausführungsform der Erfindung eine besonders ausgebildete Einheit aus Trägerwelle und wenigstens einer erfindungsgemäßen Bürsteneinheit vor, bei der jede Hälfte der Bürsteneinheit auf die Trägerwelle aufgerastet und darüber an der Trägerwelle gehalten werden kann, bis auch die andere Hälfte angebracht ist. Erst danach wird die endgültige Verbindung über die Stiftelemente und die Verbindungselemente hergestellt.Therefore, a particularly preferred embodiment of the invention provides a specially designed unit of carrier shaft and at least one brush unit according to the invention, in which each half of the brush unit can be snapped onto the carrier shaft and held above it on the carrier shaft until the other half is attached. Only then is the final connection established via the pin elements and the connecting elements.

Zum Aufrasten der Trägerringsegmente sind vorzugsweise am Außenmantel der Trägerwelle an gegenüberliegenden Durchmesserpositionen jeweils zwei Rundprofile in axialer Erstreckung nebeneinander aufgeschweißt. An den Trägersegmenten sind sehr nah an der Trennstelle jeweils Rastausnehmungen ausgebildet, sodass beim Aufsetzen der einen Hälfte der Bürsteneinheit die Trägerringe mit ihren Rastausnehmungen auf einem der aufgeschweißten Profilstäbe abgleiten und dahinter einrasten.For latching the carrier ring segments are preferably on the outer surface of the carrier shaft at opposite diameter positions in each case two Round profiles welded in axial extension next to each other. At the carrier segments each locking recesses are formed very close to the separation point, so that when placing one half of the brush unit slide the carrier rings with their recesses on one of the welded profile bars and engage behind it.

Um die Verformung und damit das Aufrasten zu erleichtern, sind die Trägerringsegmente vorzugsweise aus Kunststoff hergestellt, was auch das Gewicht der Bürsteneinheit deutlich reduziert. Außerdem ist am inneren Umfang wenigstens ein Entlastungsschlitz mit einem Freistich vorgesehen, um das Aufspreizen des Trägerringsegments im Moment der Rastung zu erleichtern.In order to facilitate the deformation and thus the locking, the carrier ring segments are preferably made of plastic, which also significantly reduces the weight of the brush unit. In addition, at least one relief slot is provided with an undercut on the inner circumference, to facilitate the spreading of the carrier ring segment at the moment of detent.

Eine weitere erfindungsgemäße Lösung wird durch eine Bürsteneinheit mit den Merkmalen des Anspruchs 4 bereitgestellt, bei der keine Rastverbindungen benutzt werden und auch keine direkte Verbindung zwischen den sich ergänzenden Trägerringsegmenten hergestellt wird, sondern bei der Stangen mit vorzugsweise rundem Querschnitt durch die Trägerringsegmente und durch die mit der Trägerwelle verbundenen Aufnahmen gesteckt werden.A further solution according to the invention is provided by a brush unit with the features of claim 4, in which no snap-in connections are used and also no direct connection between the complementary carrier ring segments is made, but in the rods with preferably round cross-section through the carrier ring segments and through with the carrier wave connected recordings are plugged.

Die Erfindung wird nachfolgend anhand der in den Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Die Figuren anzeigen im Einzelnen:

Figur 1
eine Bürstenwalze mit mehreren Bürsteneinheiten gemäß einer ersten Ausführungsform der Erfindung, in schematischer perspektivischer Ansicht;
Figur 2
ein vergrößertes Detail der Bürstenwalze aus Figur 1;
Figur 3
einen Schnitt durch eine Bürstenwalze mit einer zwischen zwei benachbarten Bürsteneinheiten gelegenen Schnittebene;
Figur 4
ein Trägerringsegment in perspektivischer Ansicht;
Figur 5
ein Verbindungselement in perspektivischer Ansicht; und
Figur 6
eine Bürstenwalze mit mehreren Bürsteneinheiten gemäß einer zweiten Ausführungsform der Erfindung, in schematischer perspektivischer Ansicht.
The invention will be explained in more detail with reference to the embodiments illustrated in the drawings. The figures show in detail:
FIG. 1
a brush roller with a plurality of brush units according to a first embodiment of the invention, in a schematic perspective view;
FIG. 2
an enlarged detail of the brush roller FIG. 1 ;
FIG. 3
a section through a brush roller with a cutting plane located between two adjacent brush units;
FIG. 4
a carrier ring segment in perspective view;
FIG. 5
a connecting element in perspective view; and
FIG. 6
a brush roller with a plurality of brush units according to a second embodiment of the invention, in a schematic perspective view.

Figur 1 zeigt eine Bürstenwalze 100, bei der auf einer Trägerwelle 40 insgesamt vier Bürsteneinheiten 10 nebeneinander positioniert sind. Jede Bürsteneinheit 10 umfasst zwei Trägerringe 11, die mit Abstand zueinander angeordnet sind. Zwischen den Trägerringen 11 erstrecken sich eine Vielzahl von Bürstenstreifenelementen 20, von denen nur eines dargestellt ist. FIG. 1 shows a brush roller 100, in which a total of four brush units 10 are positioned side by side on a support shaft 40. Each brush unit 10 comprises two carrier rings 11, which are arranged at a distance from each other. Between the carrier rings 11 extend a plurality of brush strip elements 20, of which only one is shown.

Jedes Bürstenstreifenelement 20 besitzt ein Aufnahmeprofil 21 mit einer kederförmigen Verdickung sowie eine Vielzahl von Borsten 22, die in dem Aufnahmeprofil 21 verankert sind. Die Trägerringe 11 besitzen an ihrem Außenumfang eine Vielzahl von Ausnehmungen 14, in welche die Aufnahmeprofile 21 der Bürstenstreifenelemente 20 einsetzbar sind. Zwischen den Trägerringen 11 benachbarter Bürsteneinheiten 10 sind Verbindungselemente 30 eingefügt.Each brush strip element 20 has a receiving profile 21 with a kederförmigen thickening and a plurality of bristles 22 which are anchored in the receiving profile 21. The support rings 11 have on their outer circumference a plurality of recesses 14, in which the receiving profiles 21 of the brush strip elements 20 are used. Between the support rings 11 adjacent brush units 10 connecting elements 30 are inserted.

Jeder Trägerring 11 ist in zwei Trägerringsegmente 12 geteilt. Am Außenmantel 41 der Trägerwelle 40 ist ein Paar von zwei benachbarten Rundprofilen 42 aufgebracht. Ein gleichartiges Paar ist an der hier nicht einsehbaren Rückseite angebracht. Über die Profilstangen 42 können die Trägerringsegmente 12 nacheinander auf den Außenmantel 41 aufgerastet werden. In der Regel sind die Bürsteneinheiten 10 zur Montage soweit vorbereitet, so dass alle Ausnehmungen 14 in den Trägerringsegmenten 12 bereits mit Bürstenstreifenelementen 20 versehen sind. Somit lässt sich jede Bürsteneinheit 10 über die Trennung der Trägerringe 11 in zwei halbschalenförmige Teile trennen.Each carrier ring 11 is divided into two carrier ring segments 12. On the outer jacket 41 of the carrier shaft 40, a pair of two adjacent round profiles 42 is applied. A similar pair is attached to the non-visible back. About the profile bars 42, the carrier ring segments 12 can be successively snapped onto the outer shell 41. As a rule, the brush units 10 are prepared so far for mounting, so that all the recesses 14 in the carrier ring segments 12 are already provided with brush strip elements 20. Thus, each brush unit 10 can be separated via the separation of the carrier rings 11 into two half-shell-shaped parts.

An den zu den Enden der Trägerwelle 40 weisenden Trägerringen 11 ist jeweils ein Abschlussring 50 angebracht ist, der die Ausnehmungen 14 überdeckt und damit die axiale Position der Aufnahmeprofile 21 sichert.At the ends of the support shaft 40 facing carrier rings 11, a respective end ring 50 is mounted, which covers the recesses 14 and thus secures the axial position of the receiving profiles 21.

In Figur 2 ist das linke Ende der Trägerwelle 40 mit der dortigen Bürsteneinheit 10 vergrößert dargestellt. Dabei ist insbesondere die Ausbildung der Trägerringsegmente 12 deutlich sichtbar. Diese besitzen am Außenumfang schlüssellochförmige Ausnehmungen 14 und am Innenumfang zu der Trennstelle T hin jeweils eine Rastausnehmung 15 zur Verbindung mit den Profilstangen 42 auf dem Außenmantel 41 der Trägerwelle 40.In FIG. 2 the left end of the support shaft 40 is shown enlarged with the local brush unit 10. In particular, the formation of the carrier ring segments 12 is clearly visible. These have on the outer circumference keyhole-shaped recesses 14 and on the inner circumference to the separation point T out in each case a latching recess 15 for connection to the profile bars 42 on the outer jacket 41 of the support shaft 40th

Bei dem exemplarisch dargestellten Bürstenstreifenelement 20 ist erkennbar, dass das Aufnahmeprofil 21, in welchem die Borsten 22 verankert sind, mit je einem Überstand 23 über die Stirnseiten der Trägerringe 11 hervorsteht. In einer der Ausnehmungen oberhalb davon ist ein Teil des Aufnahmeprofils 21 mit Überstand 23 so eingezeichnet, dass der Überstand 23 erkennbar ist; dieser greift etwa bis auf die Hälfte der Breite in dessen Ausnehmung des Verbindungselements 30 ein. Von der anderen Seite her kann dann ebenfalls ein Überstand 23 eingreifen, sodass zwei benachbarte Trägerringe 11 durch ein gemeinsames Verbindungselement 30 gesichert werden.In the brush strip element 20 shown by way of example, it can be seen that the receiving profile 21, in which the bristles 22 are anchored, projects, each with a projection 23, over the end faces of the carrier rings 11. In one of the recesses above it, a part of the receiving profile 21 is projected with projection 23 so that the supernatant 23 can be seen; this engages approximately to half the width in the recess of the connecting element 30 a. From the other side, a projection 23 can then also engage, so that two adjacent carrier rings 11 are secured by a common connecting element 30.

Figur 3 zeigt einen Querschnitt durch die Bürstenwelle 100 im Bereich zweier Verbindungselemente 30, wobei insbesondere die Lage der beiden nebeneinanderliegenden Profilstangen 42 und der Rastausnehmungen 15 erkennbar ist. FIG. 3 shows a cross section through the brush shaft 100 in the region of two connecting elements 30, wherein in particular the position of the two adjacent profile bars 42 and the recesses 15 can be seen.

Figur 4 zeigt ein Trägerringsegment 12 in perspektivischer Ansicht. Es handelt sich um einen bogenförmigen Körper, insbesondere aus Kunststoff. Dieser erstreckt sich über einen Bogenwinkel von 180°. Am Außenumfang sind eine Vielzahl gleichartiger Ausnehmungen 14 zur Aufnahme des Aufnahmeprofils 21 der Bürstenstreifenelemente 20 ausgebildet. Am Innenumfang sind Rastausnehmungen 15 zum Aufrasten auf die Welle 40 vorgesehen, sowie ein Freistich 13, um die Verformbarkeit beim Aufrasten zu erhöhen. FIG. 4 shows a carrier ring segment 12 in a perspective view. It is an arcuate body, in particular made of plastic. This extends over an arc angle of 180 °. On the outer circumference a plurality of similar recesses 14 for receiving the receiving profile 21 of the brush strip elements 20 are formed. On the inner circumference locking recesses 15 are provided for locking onto the shaft 40, and a relief groove 13 to increase the deformability during snapping.

In Figur 5 ist ein einzelnes Verbindungselement 30 perspektivisch gezeigt. Es deckt einen sehr viel kleineren Kreisbogen ab, da es nur die durch die gestrichelte Linie gekennzeichnete Trennstelle T zwischen zwei Trägerringsegmenten 12 überbrücken muss. Es besitzt am Außenumfang Ausnehmungen 31, die hinsichtlich Form und Anordnung deckungsgleich mit den Ausnehmungen 14 des Trägerringsegments 12 sind. Beim dargestellten Ausführungsbeispiel sind insgesamt vier Ausnehmungen 31 zur Verbindung vorgesehen, also zwei für jedes Ende des Trägerringsegments 12.In FIG. 5 a single connection element 30 is shown in perspective. It covers a much smaller circular arc, since it is only the separation point T between two indicated by the dashed line Carrier ring segments 12 must bridge. It has on the outer circumference recesses 31 which are congruent with the recesses 14 of the carrier ring segment 12 in terms of shape and arrangement. In the illustrated embodiment, a total of four recesses 31 are provided for connection, so two for each end of the carrier ring segment 12th

Figur 6 zeigt eine zweite Ausführungsform einer Bürstenwalze 100', bei der eine Verbindung der Bürsteneinheiten 10' über axial einsteckbare Stangen 23' erfolgen kann. Die Bürsteneinheiten 10' besitzen auch hier wenigstens zwei Trägerringsegmente 12', die an ihrem Außenumfang die gleichen schlüssellochförmigen Ausnehmungen zur Aufnahme von Bürstenstreifen besitzen wie bei der zuvor beschriebenen ersten Ausführungsform der Bürstenwalze 100. FIG. 6 shows a second embodiment of a brush roller 100 ', in which a connection of the brush units 10' can be made via axially insertable rods 23 '. The brush units 10 'here too have at least two carrier ring segments 12', which on their outer circumference have the same keyhole-shaped recesses for receiving brush strips as in the previously described first embodiment of the brush roller 100.

Am Außenumfang der Trägerwelle 40' sind mit Abstand zueinander mehrere Aufnahmeringe 30' fest angebracht, die jeweils mehrere axiale Verbindungsausnehmungen 31' besitzen, welche deckungsgleich mit den Verbindungsausnehmungen 14' in den Trägerringsegmenten 12' sind. Die Aufnahmeringe 30' sind in dem jeweiligen Zwischenraum zwischen benachbarten Trägerringen 11' erkennbar. Vor dem ganz rechten, einzelnen Trägerring 11' liegt ein unverdeckter Aufnahmering 30'. Während die Verbindungsausnehmungen 14', 31' in den jeweiligen unteren Trägerringsegmenten 12' und der unteren Hälfte der Aufnahmeringe 30' in Figur 6 frei liegen, sind dort in der oberen Hälfte durchgängige Stangen 23' eingesteckt, durch welche jeweils die Verbindung eines Trägerringsegments 12' mit dem Aufnahmering 30' und darüber mit der Trägerwelle 40' erfolgt.At the outer periphery of the support shaft 40 'at a distance from each other a plurality of receiving rings 30' fixedly mounted, each having a plurality of axial Verbindungsausnehmungen 31 ', which are congruent with the Verbindungsausnehmungen 14' in the support ring segments 12 '. The receiving rings 30 'can be seen in the respective space between adjacent carrier rings 11'. In front of the very right, single carrier ring 11 'is an uncovered receiving ring 30'. While the connecting recesses 14 ', 31' in the respective lower support ring segments 12 'and the lower half of the receiving rings 30' in FIG. 6 are free, there are inserted in the upper half continuous rods 23 ', through which each of the connection of a support ring segment 12' with the receiving ring 30 'and above with the support shaft 40' takes place.

Die Bürsteneinheiten 10' können somit hälftig geteilt werden. Zur Montage werden sie auf die Oberseite der Trägerwelle 40' aufgesetzt und durch zwei eingesteckte Stangen 23' gesichert, die sowohl durch die Ausnehmungen in den Trägerringen 11' wie auch durch die Ausnehmungen in den Aufnahmeringen 30' verlaufen. Nach der Steckmontage der ersten Hälfte der Bürsteneinheit 10' kann die Trägerwelle 40' um 180° rotiert werden, wobei die zuvor montierte Hälfte nun an den Stangen 23' hängt. Die zweite Hälfte der Bürsteneinheit 10' wird in gleicher Weise montiert. Abschließend wird an jeder Stirnseite der Trägerwelle 40' je ein Abschlussring 50' angebracht. Die Stangen 23' werden zwischen den beidseitig angebrachten Abschlussringen 50' axial festgelegt.The brush units 10 'can thus be divided in half. For mounting, they are placed on the top of the support shaft 40 'and secured by two inserted rods 23', which extend both through the recesses in the support rings 11 'as well as through the recesses in the receiving rings 30'. After the plug-in assembly of the first half of the brush unit 10 ', the support shaft 40' can be rotated by 180 °, the previously mounted half now on the rods 23 'hangs. The second half of the brush unit 10 'is mounted in the same way. Finally, a respective end ring 50 'is attached to each end face of the carrier shaft 40'. The rods 23 'are axially fixed between the double ended end rings 50'.

Claims (15)

  1. Brush unit (10) for a brush roller (100) for a shot-blasting installation, which comprises at least two carrier rings (11) which are intended to be arranged in a spaced-apart manner on a carrier shaft (40), are divisible into at least two carrier-ring segments (12) and have on their circumference a multiplicity of outwardly opening recesses (14), into each of which a brush-strip element (20) has been inserted,
    characterized in that
    - the carrier ring segments (12) are connected together via at least one connecting element (30) per joint (T), wherein the connecting elements (30) overlap in each case one joint (T);
    - in that the carrier ring segments (12) and the connecting elements (30) or receiving elements (30') positioned thereon have congruent recesses (14, 31),
    - in that the carrier ring segments (12) and the connecting elements (30) are connected by pin elements (23) inserted into the recesses (14, 31).
  2. Brush unit (10) according to Claim 1, characterized in that the pin elements are formed by protrusions (23), projecting laterally beyond the carrier rings (11), on receiving profiles (21) of the brush-strip elements (20), and in that the connecting recesses in the carrier ring segments (12) and in the connecting elements (30) are formed by the recesses (14) for receiving the brush-strip elements (20).
  3. Brush unit (10) according to Claim 1 or 2, characterized in that the carrier rings (11) are divided into two identical carrier-ring segments (12) and are connected via two identical connecting elements (30).
  4. Brush unit (10') for a brush roller (100') for a shot-blasting installation, which comprises at least two carrier rings (11') which are intended to be arranged in a spaced-apart manner on a carrier shaft (40'), are divisible into at least two carrier-ring segments (12') and have on their circumference a multiplicity of outwardly opening recesses (14), into each of which a brush-strip element (20') has been inserted,
    characterized
    - in that a plurality of receiving rings (30') each having at least one connecting recess (31') have been attached to the carrier shaft (40');
    - in that the carrier ring segments (12') and the receiving rings (30') have congruent connecting recesses (14'; 31');
    - in that the carrier ring segments (12') and the receiving rings (30') are connected by rod elements (23') inserted into the connecting recesses (14'; 31').
  5. Brush unit (10') according to Claim 4, characterized in that the receiving elements are in the form of receiving rings (30'), which each have at least one connecting recess (31') per carrier ring segment (12').
  6. Brush unit (10') according to Claim 4 or 5, characterized in that a respective terminating ring (50') for axially securing the rods (23') is arranged at the two ends of the carrier shaft (40').
  7. Brush unit (10; 10') according to one of the preceding claims, characterized in that the receiving profiles (21; 21') have a bead-shaped thickening in cross section and the recesses (14) in the outer circumference of the carrier ring segments (12; 12') are keyhole-shaped in cross section, wherein the narrow part of the cross section is open towards the outer circumference.
  8. Brush roller (100; 100') for a shot-blasting installation, having a carrier shaft (40) and at least one brush unit (10; 10') according to one of the preceding claims to be connected thereto.
  9. Brush roller (100; 100') according to Claim 8, characterized in that a respective terminating ring (50; 50') is attached to the carrier rings (11; 11') that face the ends of the carrier shaft (40; 40'), said terminating ring (50; 50') covering the recesses (14) or connecting recesses (14').
  10. Brush roller (100; 100') according to Claim 8 or 9, characterized in that at least two brush units (10; 10') are arranged alongside one another on the carrier shaft (40; 40'), wherein a common connecting element (30) or a common receiving element (30'), in which the pin elements (23) or rods (23') engage, is arranged between two adjacent carrier rings (11; 11').
  11. Brush roller (100) according to one of Claims 8 to 10, characterized:
    - in that the outer shell (41) of the carrier shaft (40) is provided with at least one latching protrusion (42) per carrier ring segment (12), at least in a receiving region provided for the carrier ring (11),
    - in that the carrier ring segments (12) each have on their inner circumference at least one latching recess (15), via which the carrier ring segments (12) are able to be latched on the outer shell (41) of the carrier shaft (40).
  12. Brush roller (100) according to Claim 11, characterized in that the latching protrusions are formed by profile rods (42) which extend on the outer shell (41) parallel to the central axis.
  13. Brush roller (100) according to Claim 12, characterized in that the profile rods (42) have a round profile.
  14. Brush roller (100) according to one of Claims 11 to 13, characterized in that two pairs of profile rods (42) arranged alongside one another are arranged on diametrically opposite sides of the outer shell (41), and in that the latching recesses (15) in the carrier ring segments (12) are arranged close to the joint.
  15. Brush roller (100) according to one of Claims 11 to 14, characterized in that the carrier ring segments (12) are formed from plastic, and in that at least one relief slot (13) is formed on the inner circumference of the carrier ring segments (12) between the latching recesses (15).
EP17178106.5A 2016-07-04 2017-06-27 Brush unit for a brush roller for an abrasive blasting installation Active EP3266343B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17178106T PL3266343T3 (en) 2016-07-04 2017-06-27 Brush unit for a brush roller for an abrasive blasting installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016112195.9A DE102016112195A1 (en) 2016-07-04 2016-07-04 Brush unit for a brush roller for a centrifugal blasting machine

Publications (2)

Publication Number Publication Date
EP3266343A1 EP3266343A1 (en) 2018-01-10
EP3266343B1 true EP3266343B1 (en) 2019-03-27

Family

ID=59227618

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Application Number Title Priority Date Filing Date
EP17178106.5A Active EP3266343B1 (en) 2016-07-04 2017-06-27 Brush unit for a brush roller for an abrasive blasting installation

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EP (1) EP3266343B1 (en)
DE (1) DE102016112195A1 (en)
ES (1) ES2732193T3 (en)
PL (1) PL3266343T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020124982B4 (en) 2020-09-24 2023-04-27 Wheelabrator Group Gmbh Brush roller for a centrifugal blasting system
CN113858055B (en) * 2021-08-18 2024-01-23 姜义胜 Air pressure pump piston ring production line group for weak current engineering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533125A (en) * 1968-08-21 1970-10-13 James A Buechel Segmental cylindrical brush assembly
DE202004021149U1 (en) * 1990-06-07 2007-02-22 Btd Barteldrees Gmbh & Co. Cylindrical cleaning brush is produced by a number of radial brush segments that tit into profiled axial slots
DE9204253U1 (en) * 1992-03-28 1992-06-25 Schlick roto-jet Maschinenbau GmbH, 4439 Metelen Cleaning device for a roller conveyor blasting system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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PL3266343T3 (en) 2019-09-30
ES2732193T3 (en) 2019-11-21
EP3266343A1 (en) 2018-01-10
DE102016112195A1 (en) 2018-01-04

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