EP1930122B1 - Dispositif à jet avec roue centrifugue - Google Patents

Dispositif à jet avec roue centrifugue Download PDF

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Publication number
EP1930122B1
EP1930122B1 EP20070021238 EP07021238A EP1930122B1 EP 1930122 B1 EP1930122 B1 EP 1930122B1 EP 20070021238 EP20070021238 EP 20070021238 EP 07021238 A EP07021238 A EP 07021238A EP 1930122 B1 EP1930122 B1 EP 1930122B1
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EP
European Patent Office
Prior art keywords
blasting
blades
basic disk
abrasive
receptacle
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EP20070021238
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German (de)
English (en)
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EP1930122A1 (fr
Inventor
Horst-Dieter Schlick
Milutin Petrovic
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Individual
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Individual
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    • 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 present invention relates to a blasting apparatus having a blast wheel, the blast wheel having a base disc connectable to a drive shaft and a plurality of spinner blades detachably connected to the base disc, the base disc having a receptacle per spinner blade, each spinner disc having a receptacle fitting into the receptacle Has foot part and wherein a single common locking means is provided for releasably fixing all the centrifugal blades.
  • Jet devices and associated blast wheels have long been known from practical use.
  • centrifugal wheels There are two basic designs of centrifugal wheels, namely those with two base disks, between which the centrifugal blades are arranged, and those with a single base disk on which the centrifugal blades are mounted on one side.
  • the latter embodiment is preferred today because it facilitates the assembly and disassembly of the spinner blades, which constitute a wearing part in the blasting device.
  • a blast wheel of the type mentioned is out EP 0 688 633 A1 known.
  • This document shows a blast wheel with a base disc and one-sided salaried centrifugal blades.
  • the base disk has in its top radial, not seen in cross-section grooves undercut. Radially outward, the grooves have each seen in the radial direction an undercut bevel. With this slope acts each a counter-slope on a blade root together when the blade is inserted into the associated groove in the base disk. Radially inside the blade foot protrudes radially inward over the remaining centrifugal blade. Near the radially inner end of the grooves, an annular groove runs in the base disk.
  • the patent US 5,209,024 shows a blast wheel with base disk, centrifugal blades and a cover plate comprising an impeller.
  • the base plate has in its upper side a circumferentially continuous, bowl-shaped recess, which is surrounded radially on the outside by an axially projecting edge web. This edge web has seen in the circumferential direction on a single opening.
  • the cover disc forming part of the impeller has radially outwardly open grooves through which the centrifugal blades protrude, and is axially braced against the base disc. In the clamped condition, leg pieces of the blades, which are wider than the blades themselves, are clamped between the base disk and the cover disk.
  • the cover plate is only loosened relative to the base plate, but not removed.
  • the cover disk with the blades is gradually rotated relative to the base disk so that in each case one blade can be pulled out radially through the opening in the edge web of the base disk or pushed radially inward. After inserting or exchanging all blades, the cover disk is again braced against the base disk.
  • the cover plate is completely separated from the base disk and removed.
  • the shovels are secured provisionally after their insertion into the grooves of the cover plate by means of a circumferential large clamp.
  • the preassembled unit of cover and spinner blades is positioned on the base disk and by clamping the cover plate against the base disk, the blades are finally fixed.
  • the blades are provisionally secured in position by the still loosely connected base disk and cover disk.
  • the assembly and disassembly is very cumbersome.
  • all blades are provisionally secured by a common connection means, namely the clamp.
  • this second approach assumes that the cover plate is removed from the associated jet device and brought into a horizontal position, since only so the centrifugal blades relative to the cover plate can be arranged and aligned so that the clamp can be attached from provisional connecting means.
  • the handling is cumbersome and time-consuming in the second approach.
  • a blast wheel for a blasting device in which also all the spinner blades are simultaneously fixed by means of a central, annular flange on the supporting base disk.
  • the central annular flange is clamped by means of a screw against the centrifugal blades and the base disk and against a shaft carrying the centrifugal wheel.
  • a hook-shaped extension is formed on the underside in addition to a central, radially inwardly pointing nose, radially on the outside. This extension engages from the outside in the radial direction inward into a corresponding recess on the outer circumference of the supporting base disk.
  • document GB 2 412 890 shows a jet device according to the preamble of claims 1, 4, 8 and 11th
  • each centrifugal blade can be individually connected sufficiently reliably to the base disk provisionally, so that problem-free mounting of the centrifugal blades is possible.
  • an operator may first bring a spinner blade after the other into engagement with the base disk, in which case the holding means provide sufficient provisional support of the spinner blades on the base disk.
  • the provisional holder must only ensure that the centrifugal blades do not fall off the base disk. Once all the spinner blades are brought into the provisional holding engagement with the base disk, the common locking means is attached, which then fixes the spinner blades finally to the base disk.
  • the holding means for the provisional mounting of the centrifugal blades on the base disk only have to act so strongly that they hold the centrifugal blades in position relative to the base disk, for which relatively small and / or weak holding means are sufficient.
  • the centrifugal blades are securely clamped and fixed against the base disk by means of the common locking means, in which case the retaining means for the provisional mounting of the centrifugal blades no longer have any function.
  • the holding means for the provisional mounting of the centrifugal blades on the base disk can be realized in different designs.
  • a first preferred embodiment proposes that the holding means is formed by per sprocket and associated receptacle at least one transverse pin projecting on one side of a side surface or on both sides of two side surfaces of the foot and associated with the one or two corresponding side surfaces of the recording one or two pin grooves are, in which the transverse pin in a positioning of the centrifugal blade on the base disk with movement play is insertable.
  • the cross pin and the associated pin groove or pin grooves are simple elements that can be attached or formed with little effort on the spinning blade and the base disk, so that these additional holding means do not lead to a significant increase in the cost of the centrifugal blades and the base disk.
  • the desired effect namely the provisional mounting of the centrifugal blades on the base disk in virtually any position of the base disk achieved.
  • the / each pin groove has an angled or bent course with a substantially axially extending beginning portion and a substantially radially extending end portion.
  • the holding effect is particularly safe, so that even in extreme Layers of the base disk, for example, a position in which the side of the base disk to be connected to the centrifugal blades points downwards, a secure provisional support effect is achieved.
  • the initial portion of the / each pin groove is located radially inward from the end portion of the / each pin groove.
  • the possibility is created to absorb radially outwardly acting forces of the centrifugal blades during operation of the centrifugal wheel by a fixed stop on the base disk, since the onset of the blades is associated with a movement from radially inward to outward.
  • the radially outwardly acting fixed stop on the base disk can absorb high centrifugal forces of the centrifugal blades.
  • the holding means may be formed by per recording at least one Reibklemmelement.
  • the holding effect is achieved by friction forces, which can be relatively small because they have to hold at most the weight of a centrifugal blade.
  • the Reibklemmelement is formed by per recording one or more pen or strip-shaped body made of an elastic material, the / each Reibklemmelement is arranged in a guide bore or other suitable guide in the base disk and designed and dimensioned that it protrudes in unattached spreader blade in the receptacle that it holds in clamping used in the recording foot part of the centrifugal blade and that it is displaced with its finally locked in the centrifugal bucket of the foot part in the guide bore.
  • the Reibklemmelement on the one hand safely fulfills its holding function and on the other hand, it does not obstruct the final locking of the centrifugal blades on the base disc in any way.
  • a kinematic reversal of the arrangement with one or more Reibklemmettin in or on the foot is readily possible, since this also gives the desired clamping function.
  • the / each Reibklemmelement is advantageously made of a rubber or an elastomer.
  • two Reibklemmetti are expediently arranged opposite each other in two side surfaces of the receptacle.
  • a further alternative consists in that the holding means is formed by per percussion bucket and associated receiving at least one locking element. Even with one or more locking elements, the desired holding effect for a provisional mounting of the centrifugal blades on the base disk can be achieved.
  • a related development provides that the latching element is formed on the one hand by a latching ball loaded by a spring and on the other hand by a latching recess matching the latching ball.
  • the detent ball loaded by a spring is a very compact and at the same time effective holding means, which can be easily integrated.
  • the associated latching recess on the other side is particularly easy to produce.
  • the spring-loaded detent ball is arranged in a bore in one of the side surfaces of the receptacle and that the detent recess is formed in a positionally correct manner on a side surface of the foot part of the centrifugal blade.
  • the holding means is formed by per sprocket and associated recording at least one magnet.
  • the desired provisional mounting of the spinning blades on the base disk can also be achieved by a magnetic force, with the advantage that, even at small distances, even small magnets achieve a high holding force.
  • each magnet is a permanent magnet embedded in the base disk in the region of the receptacle and that the centrifugal blades consist of a magnetizable material at least in a region cooperating with the magnet.
  • a permanent magnet is a simple and inexpensive component that can also be easily accommodated in the base disk. Since conventional centrifugal blades are made of magnetizable steel, the magnetic holding effect is easily achieved.
  • the spinner blade if intrinsically made of non-magnetizable material, may be made of a magnetizable material in the region intended to cooperate with the permanent magnet, for example by an iron or steel insert in an otherwise non-magnetic metal or ceramic Shovel.
  • each of the various holding means described above can produce for itself the necessary holding action for the provisional mounting of the spinning blades on the base disk.
  • the blast wheel per spinning blade and associated receptacle has a plurality of differently acting holding means. This achieves a particularly high level of safety with regard to achieving the desired provisional holding effect.
  • impeller For all embodiments of the impeller described above is preferably provided that it has a releasably connectable to the base disk with the foot parts cover plate as a common locking means.
  • the cover plate forming the common locking means is arranged radially inwardly of the centrifugal blades and that with a radially outer peripheral portion of the cover plate each have a radially inner end portion of the foot Centrifugal blade can be clamped axially against the base disk.
  • a cover disc which is relatively small in diameter is sufficient, in which case the outer diameter of the cover disc expediently corresponds essentially to the free distance between the radially inner ends of the centrifugal blades minus a movement play.
  • an alternative embodiment in this respect suggests that in each case the foot part relative to the other centrifugal blade in the circumferential direction of the centrifugal wheel widened is that the locking means forming the cover plate parallel to the recordings of the base disk extending, radially outwardly open slots and that the width of the slots is dimensioned so that each one of the centrifugal blades with their foot portion adjacent non-widened area in the Slot fits.
  • the cover plate here protects the base disk against the action of the blasting agent, whereby the wear of the complex and expensive in the production of the base disk is significantly reduced during operation of the blast wheel.
  • the foot part of each centrifugal blade is seen in cross-section rectangular or trapezoidal and that the foot part receiving receptacle is formed in each case adapted in cross-section.
  • the centrifugal blades should be used substantially in the axial direction in the base disk, the foot parts and the associated receptacles are preferably carried out undercuts. This means that in the case of the trapezoidal cross-section of the foot part, this becomes narrower in the direction of the base disk. This results in the insertion of the foot part in the associated receptacle in the base disk, a centering effect and an increase in the clamping action when mounting the central locking means.
  • the invention also proposes that the blast vanes project beyond the base disk radially outwards.
  • This embodiment is easily possible in the blast wheel according to the invention, because the means for connection the spinner blades with the base disk can be arranged without problems in a region lying relatively close to the radially inner end of the spinner blades.
  • the radially outer region of the centrifugal blades is not needed in the inventive impeller for locking the centrifugal blades on the base disk.
  • the centrifugal blades can run straight or curved seen in the radial direction of the impeller according to the invention.
  • there is a relatively large freedom of design because the connection of the centrifugal blades with the base disk takes place in a relatively radially inner region of the centrifugal blades.
  • the cooperating with the blasting agent areas of the centrifugal blades can be designed largely independent of their cooperating with the base plate foot.
  • the centrifugal blades are provided with their radially extending edge at their foot part and / or their foot part. a reinforcing web are formed. If the centrifugal blades are formed on their edge facing the foot part with a reinforcing web, this also ensures protection of the associated recess in the base disk against ingress of blasting agent, which extends the life of the base disk.
  • FIG. 1 The drawing shows a vertical section of a blast wheel 1 together with a short section of a blasting medium supply line 11.
  • a housing surrounding the blast wheel 1 with a blasting means outlet opening is not specifically shown in the drawing.
  • the blast wheel 1 consists of a base plate 2 with a plurality of associated spin blades 4 and a locking means 3 for the common locking of all centrifugal blades 4 on the base plate. 2
  • the base plate 2 In its center, the base plate 2 has a in the drawing to the right open wave receptacle 21, with which the impeller 1 on a rotatably driven shaft, which is not shown here, can be mounted. From the central part with the shaft holder 21, the base plate 2 extends radially outward.
  • the base plate 2 has at intervals in the circumferential direction distributed a plurality of radially extending, groove-shaped receptacles 24, in each of which a foot part 42 of a centrifugal blade 4 engages.
  • Radially inside each foot part 42 has a radially inner end portion 44 which projects beyond a radially inner end edge of the actual centrifugal blade 4. This end portion 44 of the centrifugal blades 4 cooperates with a radially outer peripheral portion 33 of the locking means 3.
  • FIG. 1 shows, the locking means 3 by means of a plurality of screws 31 which pass through holes 32 in the locking means 3 in threaded holes 22 in the base plate 2, respectively.
  • the radially outer peripheral region 33 engages over the radially inner end region 44 of all foot parts 42 of the centrifugal vanes 4, as a result of which the centrifugal vanes 4 are fixed to the base plate 2.
  • the locking means 3 is here a part of an existing in the blast wheel 1 anyway distribution sleeve 14, which at one in the FIG. 1 upwardly facing side has an opening 15 for discharging the blasting agent. Since the locking means 3 is connected together with the distributor sleeve 14 with the rotatable base disk 2, the distributor sleeve 14 rotates with its opening 15 about the axis of rotation 10 of the centrifugal wheel 1 during operation of the centrifugal wheel 1.
  • a non-rotating guide sleeve 12 is connected, which surrounds the distributor sleeve 14 with clearance and which in its circumference has a likewise pointing upward in the drawing opening 13 for a passage of the blasting agent.
  • FIG. 1 Holding means 5 are provided, which are arranged on the foot parts 42 of the centrifugal blades 4 and / or on the receptacles 24 of the base plate 2.
  • each holding means 5 consists of a transverse pin 55, which passes through the foot part 42 of the centrifugal blade 4 and projecting on both sides via a respective side surface 45 of the foot part 42.
  • the protruding parts of the cross pin 55 cooperate with each pin grooves 25 ', which are provided in two side surfaces 25 of the respective receptacle 24. This interaction is particularly in the partial section in FIG. 2 clear.
  • the foot part 42 of the spinning blade 4 here has a trapezoidal, conical shape in cross-section, the thickness of the foot part 42 decreasing in the direction of the receptacle 24.
  • the receptacle 24 in turn has opposite to the side surfaces 45 of the foot 42 aligned oblique side surfaces 25.
  • the centrifugal blades 4 With removed blasting agent supply line 11 and removed locking means 3, the centrifugal blades 4 by a movement first radially inward and then axially away from the base plate 2 away from the receptacles 24, including the Stiftnuten 25 'in the side surfaces 25 of the receptacles 24 have a corresponding course ,
  • the foot parts 42 are initially moved in the axial direction toward the base disk 2 and then outwardly in the radial direction, this movement being predetermined by the profile of the pin grooves 25 '.
  • the centrifugal vanes 4 are held sufficiently securely on the base plate 2 by means of the transverse pin 55, which is in engagement with the pin grooves 25 ', so that an automatic falling out of the centrifugal vanes 4 from their receptacles 24 is no longer possible ,
  • the final fixation of the spinning blades 4 is then carried out by attaching the central, common locking means. 3
  • FIG. 3 shows the blower wheel FIG. 1 in a view of his the centrifugal blades 4 bearing side.
  • the blast wheel 1 here has a total of six centrifugal blades 4, with a smaller or larger number of centrifugal blades 4 is possible.
  • the foot parts 42 of the centrifugal blades 4 and the associated receptacles 24 in the base plate 2 are here hidden by the centrifugal blades 4 and therefore indicated only in dashed lines.
  • the holding means 5 are hidden here by the centrifugal blades 4 and therefore also shown only dashed.
  • FIG. 4 shows a single centrifugal blade 4 from the blast wheel 1 according to FIG. 1 in a view on one of his flat sides.
  • Right in FIG. 4 is the foot part 42 of the centrifugal blade 4, wherein one of the side surfaces 45 facing the viewer. From this side surface 45 of the holding means 5 forming cross memo 55 protrudes with its one end perpendicular to the plane of the drawing.
  • this has at its lateral edges in each case a reinforcing web 48, wherein the reinforcing webs 48 define a lying between these region 43 lesser material thickness.
  • FIG. 5 shows the spinner blade 4 according to FIG. 4 in cross section corresponding to the section line VV in FIG. 4 ,
  • the course of the retaining means 5 forming transverse pin 55 through the foot part 42 is clear.
  • the transverse pin 55 protrudes beyond the two side surfaces 45 of the foot part 42.
  • Left of foot 42 lies in FIG. 5 the first reinforcing web 48, which is followed by the region 43 of the centrifugal blade 4 with lower material thickness.
  • the second reinforcing web 48 then closes the centrifugal blade 4.
  • FIG. 6 shows a second embodiment of the centrifugal wheel 1 in the same representation as in FIG. 1 , where in FIG. 6 but not part of the blast wheel 1 forming blasting agent supply line 11 and a part of the locking means 3 forming distributor sleeve 14 are omitted.
  • the blast wheel 1 according to FIG. 6 differs from the embodiment described above by the nature of the holding means 5, which in the example according to FIG. 6 is designed as Reibklemmelement 56. In the other parts, the blast wheel 1 is correct FIG. 6 with the example in FIG. 1 and it will be in terms of further in FIG. 6 Reference numerals used refer to the preceding description.
  • the arrangement of the holding means 5 is in the partial section according to FIG. 7 particularly clear, wherein the partial section according to the section line VII-VII in FIG. 6 runs.
  • the holding means 5 are here formed by two mutually opposite Reibklemmemia 56, each Reibklemmelement 56 consists of a body made of rubber or elastomer, which is arranged in each case in a guide bore 26 in the opposite side surfaces 25 of the receptacles 24 for the foot parts 42 of the centrifugal blades 4 ,
  • the Reibklemm implant 56 are designed so that they protrude when not in the receptacle 24 located foot 42 into the receptacles 24.
  • FIG. 8 is again a vertical section through the entire blast wheel 1, where also this in its individual parts with the exception of the holding means 5 coincides with the previous versions.
  • the holding means 5 are formed here by a respective locking element 57, which, like the partial section in FIG. 9 shows, is formed by a loaded with a spring 57.2 detent ball 57.1.
  • a detent recess 47 is formed in the associated side surface 45 of the foot part 42 of the centrifugal blade 4.
  • the spring 57.2 and the ball 57.1 are guided in a bore 47 which extends perpendicular to the plane of the side surface 25 in the base plate 2.
  • the receptacle 24 facing the end of the bore 27 is reduced in size so that the ball 57.1 is held in the bore 57, but may protrude beyond the side surface 25 in the receptacle 24.
  • the detent ball 57.1 and the detent recess 47 cooperate in such a way that a centrifugal blade 4 inserted in its receptacle 24 is held sufficiently securely so that falling out of the centrifugal blade 4 from the base plate 2 is avoided, even if the common central detent 3 is not yet attached ,
  • FIG. 10 shows a last embodiment of the blast wheel 1, which again differs with respect to the holding means 5 from the preceding embodiments.
  • a permanent magnet 58 is formed.
  • a permanent magnet 58 is inserted below the foot part 42 in the receptacle 24 in the base plate 2.
  • Foot part 42 is the underside in the immediate vicinity of the foot 42 facing the top of the permanent magnet 58, whereby the magnet 58 exerts a magnetic holding force on the of a magnetizable material, usually steel, existing centrifugal blade 4.
  • the foot part 42 can be produced by itself from a magnetizable material or be equipped with an insert of a magnetizable material in a region opposite to the permanent magnet 58. Even with the aid of the permanent magnet 58, the associated centrifugal blade 4 can be held sufficiently securely on the base disk, respectively, until the locking means 3 is mounted for joint fixation of all the centrifugal blades 4.
  • the centrifugal blades 4 sufficiently initially held provisionally in the base plate 2 without an operator must maintain the stop manually, which is virtually impossible with two hands anyway, or stop by additionally attached provisional Must produce holding means.
  • the assembly of the centrifugal blades 4 on the base plate 2 is easy and can be done in a short amount of time.
  • the attachment and detachment of the common central locking means 3 requires only a small amount of work, so that the maintenance of the spinner wheel 1, in particular the replacement of its wear part representing spinner blades 4, is facilitated and accelerated. This minimizes downtimes of an associated jet device.

Claims (23)

  1. Dispositif de projection abrasive avec une roue de projection (1) et avec un carter entourant la roue de projection (1), lequel carter comporte une conduite d'alimentation en agent d'abrasion par jet (11) et un orifice de sortie de l'agent d'abrasion par jet, la roue de projection (1) comportant un unique disque de base (2) qui peut être relié à un arbre d'entraînement et plusieurs palettes de projection (4) reliées de manière amovible au disque de base (2), le disque de base (2) présentant un logement (24) par palette de projection (4), chaque palette de projection (4) comportant une partie de base (42) adaptée pour entrer dans le logement (24), caractérisé en ce que la roue de projection (1) comporte un unique moyen de blocage commun (3) pour la fixation amovible et le calage axial de toutes les palettes de projection (4) contre le disque de base (2), et au moins un moyen de retenue (5) pour maintenir provisoirement les palettes de projection (4) sur le disque de base (2) jusqu'à la pose et la fixation du moyen de blocage commun (3) étant affecté à chaque logement (24) ménagé dans le disque de base (2) et/ou à chaque partie de base (42) des palettes de projection (4), le moyen de retenue (5) étant formé par au moins une broche transversale (55) par palette de projection (4) et logement associé (24), laquelle broche fait saillie d'un côté par rapport à une face latérale (45) ou des deux côtés par rapport à deux faces latérales (45) de la partie de base (42) et à laquelle broche une ou deux rainures de broche (25') dans lesquelles la broche transversale (55) peut être introduite lors d'un positionnement de la palette de projection (4) sur le disque de base (2) avec jeu de mouvement sont associées dans une ou deux faces latérales (25) correspondantes du logement (24), et en ce que, lorsque la conduite d'alimentation en agent d'abrasion par jet (11) est retirée et le moyen de blocage (3) est retiré, les palettes de projection (4) peuvent être retirées des logements par un mouvement tout d'abord dirigé radialement vers l'intérieur, puis allant s'éloignant axialement du disque de base (2), et les parties de base (42) pouvant, inversement, être déplacées tout d'abord dans le sens axial vers le disque de base (2), puis dans le sens radial vers l'extérieur lors du montage des palettes de projection (4).
  2. Dispositif de projection abrasive selon la revendication 1, caractérisé en ce que la/chaque rainure de broche (25') présente un tracé angulaire ou coudé avec une partie initiale axiale et une partie finale radiale.
  3. Dispositif de projection abrasive selon la revendication 2, caractérisé en ce que la partie initiale de la/chaque rainure de broche (25') est située radialement intérieurement par rapport à la partie finale de la/chaque rainure de broche (25').
  4. Dispositif de projection abrasive avec une roue de projection (1) et avec un carter entourant la roue de projection (1), lequel carter comporte une conduite d'alimentation en agent d'abrasion par jet (11) et un orifice de sortie de l'agent d'abrasion par jet, la roue de projection (1) comportant un unique disque de base (2) qui peut être relié à un arbre d'entraînement et plusieurs palettes de projection (4) reliées de manière amovible au disque de base (2), le disque de base (2) présentant un logement (24) par palette de projection (4), caractérisé en ce que chaque palette de projection (4) comporte une partie de base (42) adaptée pour entrer dans le logement (24), la roue de projection (1) comportant un unique moyen de blocage commun (3) pour la fixation amovible et le calage axial de toutes les palettes de projection (4) contre le disque de base (2), et au moins un moyen de retenue (5) pour maintenir provisoirement les palettes de projection (4) sur le disque de base (2) jusqu'à la pose et la fixation du moyen de blocage commun (3) étant affecté à chaque logement (24) ménagé dans le disque de base (2) et/ou à chaque partie de base (42) des palettes de projection (4), le moyen de retenue (5) étant formé par au moins un élément de serrage par friction (56) par logement (24), et en ce que, lorsque la conduite d'alimentation en agent d'abrasion par jet (11) est retirée et le moyen de blocage (3) est retiré, les palettes de projection (4) peuvent être retirées des logements par un mouvement tout d'abord dirigé radialement vers l'intérieur, puis allant s'éloignant axialement du disque de base (2), et les parties de base (42) pouvant, inversement, être déplacées tout d'abord dans le sens axial vers le disque de base (2), puis dans le sens radial vers l'extérieur lors du montage des palettes de projection (4).
  5. Dispositif de projection abrasive selon la revendication 4, caractérisé en ce que l'élément de serrage par friction (56) est formé par au moins un corps en forme de broche ou de barre en une matière élastique par logement (24), l'élément de serrage par friction (56) étant situé dans un perçage de guidage (26) ménagé dans le disque de base (2) et étant réalisé et dimensionné de manière telle qu'il fait saillie dans le logement (24) lorsque la palette de projection (4) n'est pas montée, que, lorsque la partie de base (42) de la palette de projection (4) est introduite dans le logement (24), il maintient celle-ci par serrage et que, lorsque la palette de projection (4) est finalement bloquée, il est repoussé dans le perçage de guidage (26) par la partie de base (42) de celle-ci.
  6. Dispositif de projection abrasive selon la revendication 5, caractérisé en ce que l'élément de serrage par friction (56) est composé de caoutchouc ou d'un élastomère.
  7. Dispositif de projection abrasive selon la revendication 5 ou 6, caractérisé en ce que deux éléments de serrage par friction (56) sont situés en vis-à-vis dans deux faces latérales (25) du logement (24).
  8. Dispositif de projection abrasive avec une roue de projection (1) et avec un carter entourant la roue de projection (1), lequel carter comporte une conduite d'alimentation en agent d'abrasion par jet (11) et un orifice de sortie de l'agent d'abrasion par jet, la roue de projection (1) comportant un unique disque de base (2) qui peut être relié à un arbre d'entraînement et plusieurs palettes de projection (4) reliées de manière amovible au disque de base (2), le disque de base (2) présentant un logement (24) par palette de projection (4), chaque palette de projection (4) comportant une partie de base (42) adaptée pour entrer dans le logement (24),
    caractérisé en ce que
    la roue de projection (1) comporte un unique moyen de blocage commun (3) pour la fixation amovible et le calage axial de toutes les palettes de projection (4) contre le disque de base (2), et au moins un moyen de retenue (5) pour maintenir provisoirement les palettes de projection (4) sur le disque de base (2) jusqu'à la pose et la fixation du moyen de blocage commun (3) étant affecté à chaque logement (24) ménagé dans le disque de base (2) et/ou à chaque partie de base (42) des palettes de projection (4), le moyen de retenue (5) étant formé par au moins un élément d'encliquetage (57) par palette de projection (4) et logement associé (24), et en ce que, lorsque la conduite d'alimentation en agent d'abrasion par jet (11) est retirée et le moyen de blocage (3) est retiré, les palettes de projection (4) peuvent être retirées des logements par un mouvement tout d'abord dirigé radialement vers l'intérieur, puis allant s'éloignant axialement du disque de base (2), et les parties de base (42) pouvant, inversement, être déplacées tout d'abord dans le sens axial vers le disque de base (2), puis dans le sens radial vers l'extérieur lors du montage des palettes de projection (4).
  9. Dispositif de projection abrasive selon la revendication 8, caractérisé en ce que l'élément d'encliquetage (57) est formé par une bille d'encliquetage (57.1) contrainte par un ressort (57.2), d'une part, et un creux d'encliquetage (47) adapté à la bille d'encliquetage (57.1), d'autre part.
  10. Dispositif de projection abrasive selon la revendication 9, caractérisé en ce que la bille d'encliquetage (57.1) contrainte par un ressort est située dans l'une des faces latérales (25) du logement (24) et en ce que le creux d'encliquetage (47) est réalisé à une position adéquate sur une face latérale (45) de la partie de base (42) de la palette de projection (4).
  11. Dispositif de projection abrasive avec une roue de projection (1 ) et avec un carter entourant la roue de projection (1), lequel carter comporte une conduite d'alimentation en agent d'abrasion par jet (11) et un orifice de sortie de l'agent d'abrasion par jet, la roue de projection (1) comportant un unique disque de base (2) qui peut être relié à un arbre d'entraînement et plusieurs palettes de projection (4) reliées de manière amovible au disque de base (2), le disque de base (2) présentant un logement (24) par palette de projection (4), chaque palette de projection (4) comportant une partie de base (42) adaptée pour entrer dans le logement (24),
    caractérisé en ce que
    la roue de projection (1) comporte un unique moyen de blocage commun (3) pour la fixation amovible et le calage axial de toutes les palettes de projection (4) contre le disque de base (2), et au moins un moyen de retenue (5) pour maintenir provisoirement les palettes de projection (4) sur le disque de base (2) jusqu'à la pose et la fixation du moyen de blocage commun (3) étant affecté à chaque logement (24) ménagé dans le disque de base (2) et/ou à chaque partie de base (42) des palettes de projection (4), le moyen de retenue (5) étant formé par au moins un aimant (58) par palette de projection (4) et logement associé (24), et en ce que, lorsque la conduite d'alimentation en agent d'abrasion par jet (11) est retirée et le moyen de blocage (3) est retiré, les palettes de projection (4) peuvent être retirées des logements par un mouvement tout d'abord dirigé radialement vers l'intérieur, puis allant s'éloignant axialement du disque de base (2), et les parties de base (42) pouvant, inversement, être déplacées tout d'abord dans le sens axial vers le disque de base (2), puis dans le sens radial vers l'extérieur lors du montage des palettes de projection (4).
  12. Dispositif de projection abrasive selon la revendication 11, caractérisé en ce que chaque aimant (58) est un aimant permanent encastré dans le disque de base (2) dans la zone du logement (24) et en ce que les palettes de projection (4) se composent d'une matière magnétisable au moins dans une zone qui coopère avec l'aimant (58).
  13. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce qu'il comporte, pour chaque palette de projection (4) et logement associé (24), plusieurs moyens de retenue (5) qui agissent différemment.
  14. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce qu'il comporte, en tant que moyen de blocage commun (3), un disque de recouvrement qui peut être relié de manière amovible au disque de base (2) avec serrage de la partie de base (42).
  15. Dispositif de projection abrasive selon la revendication 14, caractérisé en ce que le disque de recouvrement formant le moyen de blocage commun (3) est situé radialement intérieurement par rapport aux palettes de projection (4) et en ce que respectivement une zone terminale (44) radialement intérieure de la partie de base (42) de chaque palette de projection (4) peut être serrée axialement contre le disque de base (2) avec une zone de pourtour radialement extérieure (33) du disque de recouvrement.
  16. Dispositif de projection abrasive selon la revendication 14, caractérisé en ce que chaque partie de base (42) est évasée par rapport au reste de la palette de projection (4) dans le sens du pourtour de la roue de projection (1), en ce que le disque de recouvrement formant le moyen de blocage (3) comporte des fentes parallèles aux logements (24) du disque de base (2) et ouvertes vers l'extérieur dans le sens radial et en ce que respectivement l'une des palettes de projection (4) s'engage dans la fente en sa partie (43) non évasée voisine de la partie de base (42).
  17. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce que la partie de base (42) de chaque palette de projection (4) est, vue en coupe transversale, de forme rectangulaire ou trapézoïdale et en ce que le logement (24) qui reçoit la partie de base (42) est formé avec une section adaptée également de forme rectangulaire ou trapézoïdale.
  18. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce que les palettes de projection (4) dépassent le disque de base (2) radialement vers l'extérieur.
  19. Dispositif de projection abrasive selon l'une des revendications 1 à 18, caractérisé en ce que respectivement un perçage central (22, 32) est ménagé dans le moyen de blocage commun (3) et dans le disque de base (2) radialement intérieurement par rapport aux palettes de projection (4), une vis (31) pouvant traverser la paire de perçages (22, 32) pour caler le moyen de blocage (3) contre le disque de base (2).
  20. Dispositif de projection abrasive selon l'une des revendications 1 à 18, caractérisé en ce que respectivement plusieurs perçages (22, 32) répartis dans le sens du pourtour sont ménagés dans le moyen de blocage commun (3) et dans le disque de base (2) radialement intérieurement par rapport aux palettes de projection (4), plusieurs vis (31) pouvant traverser les paires de perçages (22, 32) pour caler le moyen de blocage (3) contre le disque de base (2).
  21. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce que, vues dans le sens radial, les palettes de projection (4) sont en ligne droite.
  22. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce que, vues dans le sens radial, les palettes de projection (4) sont pliées.
  23. Dispositif de projection abrasive selon l'une des revendications précédentes, caractérisé en ce que les palettes de projection (4) sont réalisées avec respectivement une nervure de renforcement (48) sur leur bord radial éloigné de la partie de base (42) et/ou tourné vers la partie de base (42).
EP20070021238 2006-12-07 2007-10-31 Dispositif à jet avec roue centrifugue Active EP1930122B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610058022 DE102006058022B4 (de) 2006-12-07 2006-12-07 Schleuderrad für eine Strahleinrichtung

Publications (2)

Publication Number Publication Date
EP1930122A1 EP1930122A1 (fr) 2008-06-11
EP1930122B1 true EP1930122B1 (fr) 2010-07-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070021238 Active EP1930122B1 (fr) 2006-12-07 2007-10-31 Dispositif à jet avec roue centrifugue

Country Status (2)

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EP (1) EP1930122B1 (fr)
DE (3) DE102006058022B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368510B1 (ko) * 2012-03-13 2014-02-28 주식회사 포스코 숏 블라스터

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8550881B2 (en) 2009-11-16 2013-10-08 Pangborn Corporation Vane, mounting assembly and throwing wheel apparatus having a locking member tapered in two planes
PT3197638T (pt) 2014-09-25 2022-03-16 Wheelabrator Group Ltd Pá para máquina com roda de grenalhagem centrífuga e método de manutenção de uma máquina com roda de grenalhagem centrífuga

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956914C (de) * 1954-12-07 1957-01-24 Badische Maschinenfabrik A G Schaufelbefestigung fuer Schleuderradmaschinen zum Schleudern von koernigen Putzmitteln aller Art
DE1062570B (de) * 1956-05-07 1959-07-30 Wheelabrator Corp Einrichtung zur Sicherung der Schaufeln eines Schleuderrades fuer Strahlanlagen
US3241266A (en) * 1963-07-10 1966-03-22 Pangborn Corp Abrasive particle throwing wheel assembly
US3383804A (en) * 1965-12-09 1968-05-21 Pangborn Corp Locking pin retainer for abrasive throwing blades
DE2363507C3 (de) * 1973-12-20 1978-11-02 Rudolf 2000 Hamburg Matzke Schleuderrad für körnige Stoffe
DE2407798C3 (de) * 1973-12-20 1980-01-17 Rudolf 2000 Hamburg Matzke Schleuderrad für körnige Stoffe
DE2407247C3 (de) 1973-12-20 1980-03-27 Rudolf 2000 Hamburg Matzke Schleuderrad für körnige Stoffe
US3945150A (en) * 1975-01-20 1976-03-23 The Carborundum Company Runnerhead for a throwing wheel
US4697391A (en) * 1985-12-20 1987-10-06 Carpenter Jr James H Vane retention apparatus for abrasive blasting machine
CA1317765C (fr) * 1989-03-02 1993-05-18 Stefan Fylak Roue de grenaillage a lames
GB9014994D0 (en) * 1990-07-06 1990-08-29 Tilghman Wheelabrator Ltd Abrasive throwing wheel assemblies
US5209024A (en) * 1991-10-22 1993-05-11 Pangborn Corporation Inexpensive abrasive blast wheel
EP0688633A1 (fr) * 1994-06-23 1995-12-27 Speedlock Shotblast Systems Cc Roue de grenaillage
GB0405854D0 (en) * 2004-03-16 2004-04-21 Vapormatt Ltd Slurry feed system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101368510B1 (ko) * 2012-03-13 2014-02-28 주식회사 포스코 숏 블라스터

Also Published As

Publication number Publication date
DE102006058022A1 (de) 2008-06-12
DE202007019002U1 (de) 2010-04-01
EP1930122A1 (fr) 2008-06-11
DE102006058022B4 (de) 2009-12-17
DE502007004379D1 (de) 2010-08-26

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