EP0004886B1 - Impeller wheel for abrasive-blasting devices - Google Patents

Impeller wheel for abrasive-blasting devices Download PDF

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Publication number
EP0004886B1
EP0004886B1 EP79100943A EP79100943A EP0004886B1 EP 0004886 B1 EP0004886 B1 EP 0004886B1 EP 79100943 A EP79100943 A EP 79100943A EP 79100943 A EP79100943 A EP 79100943A EP 0004886 B1 EP0004886 B1 EP 0004886B1
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EP
European Patent Office
Prior art keywords
flinger
guide
wheel
clamping elements
centrifugal
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.)
Expired
Application number
EP79100943A
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German (de)
French (fr)
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EP0004886A1 (en
Inventor
Wolfgang Jahn
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.)
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Original Assignee
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
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.)
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Application filed by Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag filed Critical Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Publication of EP0004886A1 publication Critical patent/EP0004886A1/en
Application granted granted Critical
Publication of EP0004886B1 publication Critical patent/EP0004886B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor
    • B24C5/062—Rotor blades or vanes; Locking means therefor

Definitions

  • the invention relates to a centrifugal wheel for abrasive systems with a guide disk wheel and with throwing vanes fastened to the guide disk wheel by means of detents designed as tensioning elements, each of which has rib-shaped side edges and both symmetrically to the central plane lying in its blade surface and to the two perpendicularly on the blade surface standing, the blade longitudinal axis and the blade transverse axis containing planes is formed, wherein recesses are arranged in the rib-shaped side edges for receiving the clamping elements.
  • abrasives are blasted onto workpieces to be machined in cleaning, descaling and other centrifugal blasting systems.
  • the blasting media are guided in radial direction, accelerated and thrown outwards via their throwing blades.
  • the throwing blades are subject to severe wear due to the abrasive that strikes them and flows at high speed, which is why they have to be replaced at certain intervals.
  • each throwing blade can be rotated through 180 ° both about its longitudinal axis and about its transverse axis and can be inserted in the guide disc wheel in each of these positions.
  • the centrifugal wheel can also be moved in both directions.
  • each locking device for one of the throwing blades consists of an elastic sleeve in which a holding element is held in the form of a bolt which engages in recesses which are introduced diametrically opposite one another from the narrow side into the edges of the throwing blade.
  • an anchor is formed on the longitudinal narrow side outside the rib-shaped side edge, which engages with wedge-shaped engagement surfaces in receptacles of the wheel disks.
  • both the throwing shovel itself and its locking device are constructed and assembled in a complex manner.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the task of simplifying both the throwing shovel itself and its locking in a centrifugal wheel for abrasive systems.
  • a throwing scoop 1 used in the invention essentially consists of a rectangular base plate 2, the two sides of which serve as a blasting agent running surface.
  • the base plate 2 has a rib-shaped side edge 3 on each longitudinal edge.
  • the cross section of the throwing blade 1 thus takes the form of a double T.
  • the transitions from the base plate 2 to the side edges 3 are rounded, as required by the manufacturing processes of forging or casting.
  • each side edge 3 has a recess 4 on each side, which is essentially semicircular.
  • the recess 4 serves to receive an eccentric tensioning element 6 to be described.
  • the throwing blade 1 is completely symmetrical both with respect to its transverse axis A-A and with respect to its longitudinal axis B-B.
  • Each eccentric clamping element 6 has the basic shape of a shaft 7.
  • a spiral-widening cam 8 is provided in the middle of the shaft 7.
  • a shoulder 9 is provided on each end face of the shaft. The areas formed by the shoulders 9 lie in the same plane. This level also delimits the cam 8 on one side.
  • the cam takes about 145 ° of the circumference of the shaft 7.
  • the shaft 7 is provided with a bore 10 at an acute angle to the plane defined by the shoulders 9.
  • the throwing blade 1 is inserted into a double guide disk wheel 13 having two guide disks 12.
  • the double idler wheel 13 is made as a casting.
  • Four to eight grooves 14 are cast radially in the double guide disk wheel 13.
  • recesses 15 are provided for receiving the eccentric clamping elements 6 on the same diameter with respect to the pivot point of the double idler wheel.
  • One of the eccentric clamping elements 6 is inserted in mutually assigned recesses 15 in the guide disks 12 within the same groove 14, specifically in such a way that the shoulders 9 lie in the radial direction of the double guide disk wheel 13.
  • the eccentric clamping element 6 is then pivoted so that the non-flattened end region of the shaft 7 is screwed into the recess 4. This turning takes place until the cam 8 bears against the base plate 2 and can be pressed on in the manner of a locking mechanism.
  • the cam 8 engages with respect to the pivot point of the double guide disk wheel 13 from below, so that when the wheel is rotated under the action of centrifugal force on the throwing blade 1, the eccentric clamping element 6 is pressed more firmly onto the throwing blade 1.
  • the double disc wheel 13 is part of a centrifugal wheel 17.
  • the centrifugal wheel 17 is driven by a shaft 18.
  • a hub 20 provided with a flange 19 is fastened on the shaft 18 by means of a conical bushing 21 and a wedge 22.
  • the double guide disc wheel 13 is centered on the hub 20 and connected to the flange 19 by means of a screw connection 23. At least two, at most eight, throwing blades 1 are connected to the double guide disc wheel via the eccentric clamping elements 6.
  • the centrifugal wheel 17 rotates in a housing 24.
  • a distributor bushing 26, also called an impeller cage, is also provided with the drive shaft 18, specifically via a groove and screw connection 15 engaging in the axis of rotation of the shaft 18.
  • the distributor bushing 26 has an opening in the axial direction, in which an inlet pipe 27 opens, and also openings that run in the radial direction.
  • the blasting agent arriving from the inlet pipe 27 is distributed radially in the direction of the double guide disk wheel 13 with the aid of the distributor bushing 26.
  • the distributor bushing 26 takes over the task of blasting agent distribution and metering. By adjusting the guide sleeve 28, the direction of discharge of the blasting agent is controlled. ,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Die Erfindung bezieht sich auf ein Schleuderrad für Strahlmittelanlagen mit einem Leitscheibenrad und mit an dem Leitscheibenrad mittels als Spannelemente ausgebildeter Arretierungen befestigter Wurfschaufeln, von denen jede rippenförmige Seitenränder aufweist und sowohl symmetrisch zu der in ihrer Schaufelfläche liegenden Mittelebene als auch zu den beiden auf der Schaufelfläche senkrecht stehenden, die Schaufellängsachse und die Schaufelquerachse enthaltenden Ebenen ausgebildet ist, wobei in den rippenförmigen Seitenrändern Ausnehmungen für die Aufnahme der Spannelemente angeordnet sind.The invention relates to a centrifugal wheel for abrasive systems with a guide disk wheel and with throwing vanes fastened to the guide disk wheel by means of detents designed as tensioning elements, each of which has rib-shaped side edges and both symmetrically to the central plane lying in its blade surface and to the two perpendicularly on the blade surface standing, the blade longitudinal axis and the blade transverse axis containing planes is formed, wherein recesses are arranged in the rib-shaped side edges for receiving the clamping elements.

Mit Hilfe von Schleuderrädern werden in Putz-, Entzunderungs- und anderen Schleuderstrahlanlagen Strahlmittel auf zu bearbeitende Werkstücke geschleudert. Über deren Wurfschaufeln werden die Strahlmittel in Radialrichtung geführt, beschleunigt und nach außen geschleudert. Die Wurfschaufeln sind wegen des auf sie auftreffenden und mit hoher Geschwindigkeit fließenden Strahlmittels einem starken Verschleiß unterworfen, weshalb sie in gewissen Zeitabständen ausgetauscht werden müssen.With the help of centrifugal wheels, abrasives are blasted onto workpieces to be machined in cleaning, descaling and other centrifugal blasting systems. The blasting media are guided in radial direction, accelerated and thrown outwards via their throwing blades. The throwing blades are subject to severe wear due to the abrasive that strikes them and flows at high speed, which is why they have to be replaced at certain intervals.

Es ist bekannt (CH-A-412 613), Wurfschaufeln und ihre Arretierung allseitig symmetrisch auszubilden, so daß sie in dem Schleuderrad auf vierfache Weise eingesetzt werden können: Jede Wurfschaufel kann um 180° sowohl um ihre Längsachse als auch um ihre Querachse gedreht und in jeder dieser Lagen in das Leitscheibenrad eingesetzt werden. Außerdem kann das Schleuderrad in beiden Drehrichtungen bewegt werden. Bei dem bekannten Schleuderrad besteht jede Arretierung für eine der Wurfschaufeln aus einer elastischen Hülse, in der ein Halteorgan in der Form eines Bolzens gehalten ist, das in Vertiefungen eingreift, die diametral sich gegenüberliegend von der Schmalseite in die Ränder der Wurfschaufel eingebracht sind. An jeder Wurfschaufel ist an der Längsschmalseite außerhalb des rippenförmigen Seitenrandes noch je ein Anker angeformt, der mit keilförmigen Eingriffsflächen in Aufnahmen der radscheiben eingreift. Bei der bekannten Wurfschaufel sind sowohl die Wurfschaufel selbst als auch ihre Arretierung aufwendig konstruiert und montierbar.It is known (CH-A-412 613) to design throwing blades and their locking symmetrically on all sides, so that they can be used in the centrifugal wheel in four ways: each throwing blade can be rotated through 180 ° both about its longitudinal axis and about its transverse axis and can be inserted in the guide disc wheel in each of these positions. The centrifugal wheel can also be moved in both directions. In the known centrifugal wheel, each locking device for one of the throwing blades consists of an elastic sleeve in which a holding element is held in the form of a bolt which engages in recesses which are introduced diametrically opposite one another from the narrow side into the edges of the throwing blade. On each throwing vane an anchor is formed on the longitudinal narrow side outside the rib-shaped side edge, which engages with wedge-shaped engagement surfaces in receptacles of the wheel disks. In the known throwing shovel, both the throwing shovel itself and its locking device are constructed and assembled in a complex manner.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, bei einem Schleuderrad für Strahlmittelanlagen sowohl die Wurfschaufel selbst als auch deren Arretierung zu vereinfachen.The invention seeks to remedy this. The invention, as characterized in the claims, solves the task of simplifying both the throwing shovel itself and its locking in a centrifugal wheel for abrasive systems.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, daß - unter Beibehaltung der allseitigen Symmetrie und damit der optimalen Nutzbarkeit der Wurfschaufel - sowohl was die Konstruktion als auch was die Montage angeht Wurfschaufel und ihre Arretierung vereinfacht sind. Beim Drehen des Schleuderrads wird über die Wirkung der Fliehkraft das Exzenter-Spannelement fester an die Wurfschaufel angedrückt.The advantages achieved by the invention are essentially to be seen in the fact that - while maintaining the all-round symmetry and thus the optimal usability of the throwing blade - both in terms of construction and in terms of assembly, throwing blade and its locking are simplified. When the centrifugal wheel is turned, the eccentric clamping element is pressed more firmly against the throwing vane due to the effect of the centrifugal force.

Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigt

  • Fig. 1 eine Wurfschaufel
    • a) in perspektivischer Darstellung,
    • b) in einem Schnitt entlang der Querachse A-A und
    • c) in einem Schnitt entlang der Längsachse B-B;
  • Fig. 2 einen Ausschnitt aus einer Leitscheibe im Bereich einer Nut für die Aufnahme einer Wurfschaufel
    • a) ohne Wurfschaufel,
    • b) mit Wurfschaufel und Exzenterspannelement,
    • c) mit Wurfschaufel und Exzenterspannele- mergt in Draufsicht;
  • Fig. 3 das Exzenterspannelement
    • a) in einem in der Symmetrieachse geführten Querschnitt
    • b) in Stirnansicht
    • c) in Draufsicht;
  • Fig. 4 einen Axialschnitt durch ein Schleuderrad.
Refinements and developments of the invention are specified in the subclaims. An embodiment of the invention is shown in the drawing and will be described in more detail below. It shows
  • Fig. 1 a throwing scoop
    • a) in perspective,
    • b) in a section along the transverse axis AA and
    • c) in a section along the longitudinal axis BB;
  • Fig. 2 shows a section of a guide disk in the region of a groove for receiving a throwing blade
    • a) without throwing shovel,
    • b) with throwing shovel and eccentric clamping element,
    • c) with throwing shovel and eccentric cocking element g t in plan view;
  • Fig. 3, the eccentric clamping element
    • a) in a cross section guided in the axis of symmetry
    • b) in front view
    • c) in top view;
  • Fig. 4 shows an axial section through a centrifugal wheel.

Eine bei der Erfindung verwendete Wurfschaufel 1 besteht im wesentlichen aus einer rechteckigen Grundplatte 2, deren beide Seiten als Strahlmittellauffläche dienen. An jeder Längskante weist die Grundplatte 2 einen rippenförmigen Seitenrand 3 auf. Der Querschnitt der Wurfschaufel 1 erhält dadurch die Form eines Doppel-T. Die Übergänge von der Grundplatte 2 zu den Seitenrändern 3 sind angerundet, wie es die Fertigungsverfahren des Schmiedens oder Gießens verlangen. In einer mittig verlaufenden Querachse A-A weist jeder Seitenrand 3 auf jeder Seite eine Ausnehmung 4 auf, die im wesentlichen halbkreisförmig ausgebildet ist. Die Ausnehmung 4 dient der Aufnahme eines noch zu beschreibenden Exzenterspannelements 6. Die Wurfschaufel 1 ist sowohl bezogen auf ihre Querachse A-A als auch bezogen auf ihre Längsachse B-B vollständig symmetrisch ausgebildet.A throwing scoop 1 used in the invention essentially consists of a rectangular base plate 2, the two sides of which serve as a blasting agent running surface. The base plate 2 has a rib-shaped side edge 3 on each longitudinal edge. The cross section of the throwing blade 1 thus takes the form of a double T. The transitions from the base plate 2 to the side edges 3 are rounded, as required by the manufacturing processes of forging or casting. In a central transverse axis A-A, each side edge 3 has a recess 4 on each side, which is essentially semicircular. The recess 4 serves to receive an eccentric tensioning element 6 to be described. The throwing blade 1 is completely symmetrical both with respect to its transverse axis A-A and with respect to its longitudinal axis B-B.

Jedes Exzenterspannelement 6 weist die Grundform einer Welle 7 auf. Mittig ist an der Welle 7 ein spiralenförmig sich verbreiternder Nocken 8 vorgesehen. An jeder Stirnseite der Welle ist je eine Schulter 9 vorgesehen. Die von den Schultern 9 gebildeten Flächen liegen in derselben Ebene. Diese Ebene begrenzt auch an der einen Seite den Nocken 8. Der Nocken nimmt etwa 145° des Umfangs der Welle 7 ein. Mittig ist die Welle 7 unter einem spitzen Winkel zu der von den Schultern 9 definierten Ebene mit einer Bohrung 10 versehen.Each eccentric clamping element 6 has the basic shape of a shaft 7. In the middle of the shaft 7, a spiral-widening cam 8 is provided. A shoulder 9 is provided on each end face of the shaft. The areas formed by the shoulders 9 lie in the same plane. This level also delimits the cam 8 on one side. The cam takes about 145 ° of the circumference of the shaft 7. In the middle, the shaft 7 is provided with a bore 10 at an acute angle to the plane defined by the shoulders 9.

Die Wurfschaufel 1 wird in ein zwei Leitscheiben 12 aufweisendes Doppelleitscheibenrad 13 eingesetzt. Das Doppelleitscheibenrad 13 ist als Eingußstück hergestellt. In das Doppelleitscheibenrad 13 sind radial verlaufend vier bis acht Nuten 14 angegossen. Auf beiden Seiten jeder Nut 14 sind auf demselben Durchmesser bezogen auf den Drehpunkt des Doppelleitscheibenrads 13 Ausnehmungen 15 für die Aufnahme der Exzenterspannelemente 6 vorgesehen. In einander zugeordneten Ausnehmungen 15 in den Leitscheiben 12 innerhalb derselben Nut 14 ist jeweils eines der Exzenterspannelemente 6 eingesetzt, und zwar so, daß die Schultern 9 in Radialrichtung des Doppelleitscheibenrads 13 liegen. Beim Einschieben der Wurfschaufel 1 ist es so möglich, daß deren Seitenränder 3 parallel zu den Schultern 9 in die Nut 14 eingeschoben werden können. Nach Einschieben der Wurfschaufel 1 wird das Exzenterspannelement 6 dann geschwenkt, so daß der nicht abgeflachte Stirnbereich der Welle 7 in die Ausnehmung 4 eingedreht wird. Dieses Drehen erfolgt so weit, bis der Nocken 8 an der Grundplatte 2 anliegt und nach Art eines Gesperres angedrückt werden kann. Der Nocken 8 greift bezogen auf den Drehpunkt des Doppelleitscheibenrads 13 von unten an, so daß beim Drehen des Rads unter der Wirkung der Fliehkraft auf die Wurfschaufel 1 das Exzenter- spannelement 6 fester an die Wurfschaufel 1 angedrückt wird.The throwing blade 1 is inserted into a double guide disk wheel 13 having two guide disks 12. The double idler wheel 13 is made as a casting. Four to eight grooves 14 are cast radially in the double guide disk wheel 13. On both sides of each groove 14 13 recesses 15 are provided for receiving the eccentric clamping elements 6 on the same diameter with respect to the pivot point of the double idler wheel. One of the eccentric clamping elements 6 is inserted in mutually assigned recesses 15 in the guide disks 12 within the same groove 14, specifically in such a way that the shoulders 9 lie in the radial direction of the double guide disk wheel 13. When inserting the throwing blade 1, it is possible that the side edges 3 can be inserted into the groove 14 parallel to the shoulders 9. After insertion of the throwing blade 1, the eccentric clamping element 6 is then pivoted so that the non-flattened end region of the shaft 7 is screwed into the recess 4. This turning takes place until the cam 8 bears against the base plate 2 and can be pressed on in the manner of a locking mechanism. The cam 8 engages with respect to the pivot point of the double guide disk wheel 13 from below, so that when the wheel is rotated under the action of centrifugal force on the throwing blade 1, the eccentric clamping element 6 is pressed more firmly onto the throwing blade 1.

Das Doppelscheibenrad 13 ist Bestandteil eines Schleuderrads 17. Das Schleuderrad 17 wird von einer Welle 18 angetrieben. Auf der Welle 18 ist eine mit einem Flansch 19 versehene Nabe 20 mittels einer konischen Buchse 21 und einem Keil 22 befestigt. Auf der Nabe 20 zentriert und mit dem Flansch 19 über eine Schraubverbindung 23 verbunden ist das Doppelleitscheibenrad 13. Mit dem Doppeleitscheibenrad über die Exzenterspannelemente 6 verbunden sind mindestens zwei, höchstens acht Wurfschaufeln 1. Das Schleuderrad 17 dreht sich in einem Gehäuse 24.The double disc wheel 13 is part of a centrifugal wheel 17. The centrifugal wheel 17 is driven by a shaft 18. A hub 20 provided with a flange 19 is fastened on the shaft 18 by means of a conical bushing 21 and a wedge 22. The double guide disc wheel 13 is centered on the hub 20 and connected to the flange 19 by means of a screw connection 23. At least two, at most eight, throwing blades 1 are connected to the double guide disc wheel via the eccentric clamping elements 6. The centrifugal wheel 17 rotates in a housing 24.

Ebenfalls mit der Antriebswelle 18, und zwar über eine in der Drehachse der Welle 18 angreifende Nut- und Schraubenverbindung 15, ist eine Verteilerbuchse 26, auch Impellerkäfig genannt. Die Verteilerbuchse 26 weist in Axialrichtung eine Öffnung auf, in der ein Zulaufrohr 27 mündet, außerdem in Radialrichtung verlaufende Öffnungen. Das aus dem Zulaufrohr 27 ankommende Strahlmittel wird mit Hilfe der Verteilerbuchse 26 radial in Richtung auf das Doppelleitscheibenrad 13 verteilt. Nicht mit umlaufend, sondern im äußeren Gehäuse 24 des Schleuderrads 17 verstellbar befestigt ist eine Leithülse 28, die die Verteilerbuchse 26 umschließt und bis unmittelbar an einen Zwischenring 29 reicht, der von der Welle 18 angeordnet ist. Die Verteilerbuchse 26 übernimmt die Aufgabe der Strahlmittelverteilung und -dosierung. Durch Einstellung der Leithülse 28 wird die Abwurfrichtung des Strahlmittels gesteuert. ,A distributor bushing 26, also called an impeller cage, is also provided with the drive shaft 18, specifically via a groove and screw connection 15 engaging in the axis of rotation of the shaft 18. The distributor bushing 26 has an opening in the axial direction, in which an inlet pipe 27 opens, and also openings that run in the radial direction. The blasting agent arriving from the inlet pipe 27 is distributed radially in the direction of the double guide disk wheel 13 with the aid of the distributor bushing 26. A guide sleeve 28, which surrounds the distributor bushing 26 and extends directly to an intermediate ring 29, which is arranged by the shaft 18, is fastened in an adjustable manner not in the outer housing 24 of the centrifugal wheel 17. The distributor bushing 26 takes over the task of blasting agent distribution and metering. By adjusting the guide sleeve 28, the direction of discharge of the blasting agent is controlled. ,

Claims (5)

1. Centrifugal flinger-wheel for jet-type abrasive-cleaning units, with a guide-disc wheel (13) and with flinger-buckets (1) which are fastened to the guide-disc wheel by means of locking devices designed as clamping elements and each of which has rib-shaped side margins (3) and is made symmetrical both to the centre plane lying in its bucket face as well as to the two planes perpendicular to the bucket face and containing the longitudinal axis (B-B) of the bucket and the transverse axis (A-A) of the bucket, recesses (4) for receiving the clamping elements being provided in the rib-shaped side margins (3), characterised in that the recesses (4) are made substantially semicircular for receiving the end regions, provided with flattened shoulders (9), of excentric-type clamping elements (6).
2. Centrifugal flinger-wheel according to claim 1, in which the flinger-buckets (1) are fastened in a double guide-disc wheel (13), the two guide discs (12) of which are connected fixedly to one another and at a distance from one another, characterised in that the two guide discs (12) are made as one casting, in which there are provided, distributed in a star-shaped manner, four to eight grooves (14) each for receiving one of the flinger-buckets (1) and the excentric-type clamping elements (6).
3. Centrifugal flinger-wheel according to claim 2, characterised in that, in the guide discs (12), recesses (15) for receiving one of the excentric-type clamping elements (6) are provided in each groove (14), at the height of the transverse axis (A-A) of the inserted flinger-buckets (1), on both sides of the latter, this axis lying in all the grooves at the same distance from the axis of rotation of the double guide-disc wheel (13).
4. Centrifugal flinger-wheel according to claim 3, characterised in that one of the excentric-type clamping elements (6) is respectively introduced loosely into one of the grooves (14) arranged in a star-shaped manner in the guide-discs and is then inserted into two coaxial recesses (15) in dependence on the direction of rotation of the double guide-disc wheel (13).
5. Centrifugal flinger-wheel according to one of the preceding claims, characterised in that the excentric-type clamping element (6) is, as a shaft (7), provided with a centrally located, spirally widening cam (8), with, in each end region, the flattened shoulder (9) lying in the same plane as the other shoulder, and with a bore (10) extending centrally at an acute angle to the plane defined by the shoulders (9).
EP79100943A 1978-04-17 1979-03-29 Impeller wheel for abrasive-blasting devices Expired EP0004886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782816602 DE2816602A1 (en) 1978-04-17 1978-04-17 Blast wheel for abrasive systems
DE2816602 1978-04-17

Publications (2)

Publication Number Publication Date
EP0004886A1 EP0004886A1 (en) 1979-10-31
EP0004886B1 true EP0004886B1 (en) 1981-11-04

Family

ID=6037183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100943A Expired EP0004886B1 (en) 1978-04-17 1979-03-29 Impeller wheel for abrasive-blasting devices

Country Status (5)

Country Link
US (1) US4227351A (en)
EP (1) EP0004886B1 (en)
AT (1) AT359859B (en)
DE (1) DE2816602A1 (en)
DK (1) DK147934C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929400A1 (en) * 1979-07-20 1981-02-12 Vogel & Schemmann Masch SPIN WHEEL FOR BLASTING PLANTS
DE3004857A1 (en) * 1980-02-09 1981-08-20 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen SPIN WHEEL FOR BLASTING PLANTS
DE3248332C2 (en) * 1982-12-28 1986-11-27 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen Blasting abrasive wheel
CN1304167C (en) * 2001-03-05 2007-03-14 约斯特·瓦德福尔 Device for feeding blasting shots into centrifugal wheel
KR101984062B1 (en) * 2018-12-06 2019-06-04 (주)대코 A Method of Manufacturing the Blade for the Impeller of a Shot Peeing Machine and a Impeller Blade

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Publication number Priority date Publication date Assignee Title
US2582702A (en) * 1936-05-13 1952-01-15 Pangborn Corp Abrading apparatus
US2119813A (en) * 1936-05-13 1938-06-07 Pangborn Corp Abrading apparatus
DE767578C (en) 1937-02-04 1953-04-09 A Sisson Lehmann S A Ets Sandblasting device with a blower wheel for cleaning workpieces
DE834340C (en) * 1945-04-25 1952-03-17 Fischer Ag Georg Throwing wheel for throwing material to be thrown
US2819562A (en) * 1956-05-07 1958-01-14 Wheelabrator Corp Centrifugal blasting wheel and blades for use in same
US2869289A (en) * 1957-01-24 1959-01-20 Pangborn Corp Reversible centrifugal blasting method and apparatus
CH412613A (en) * 1962-11-16 1966-04-30 Geisseler Max Centrifugal wheel
DE1677143B1 (en) * 1962-12-11 1969-09-11 Badische Maschf Gmbh Blast wheel with detachable blade attachment
US3352064A (en) * 1965-02-01 1967-11-14 Wheelabrator Corp Lock system for blasting-machine blades
US3444651A (en) * 1966-11-30 1969-05-20 Max Geisseler Centrifuging wheel
GB1320641A (en) * 1971-03-29 1973-06-20 Vacu Blast Ltd Impelling wheel for particulate material
US3785105A (en) * 1972-04-05 1974-01-15 Wheelabrator Frye Inc Centrifugal blasting wheel
GB1500092A (en) * 1975-10-24 1978-02-08 Tilghman Wheelabrator Ltd Blast impellor wheels

Also Published As

Publication number Publication date
DK147934C (en) 1985-08-19
EP0004886A1 (en) 1979-10-31
DE2816602A1 (en) 1979-10-25
DK154479A (en) 1979-10-18
ATA218479A (en) 1980-04-15
AT359859B (en) 1980-12-10
DK147934B (en) 1985-01-14
US4227351A (en) 1980-10-14

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