WO2001049456A1 - Dispositif de traitement de surfaces - Google Patents

Dispositif de traitement de surfaces Download PDF

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Publication number
WO2001049456A1
WO2001049456A1 PCT/EP2000/013325 EP0013325W WO0149456A1 WO 2001049456 A1 WO2001049456 A1 WO 2001049456A1 EP 0013325 W EP0013325 W EP 0013325W WO 0149456 A1 WO0149456 A1 WO 0149456A1
Authority
WO
WIPO (PCT)
Prior art keywords
auxiliary
blades
rotation
centrifugal wheel
axis
Prior art date
Application number
PCT/EP2000/013325
Other languages
German (de)
English (en)
Inventor
Andreas Robert Deck
Original Assignee
Andreas Robert Deck
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10032119A external-priority patent/DE10032119A1/de
Application filed by Andreas Robert Deck filed Critical Andreas Robert Deck
Priority to EP00987469A priority Critical patent/EP1263550B1/fr
Priority to DE50007571T priority patent/DE50007571D1/de
Priority to AT00987469T priority patent/ATE274398T1/de
Publication of WO2001049456A1 publication Critical patent/WO2001049456A1/fr

Links

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

Definitions

  • the invention relates to a surface treatment device with an externally arranged main centrifugal wheel serving to eject a blasting agent and having main blades, an auxiliary centrifugal wheel concentrically arranged to this and having auxiliary vanes, and a stationary guide sleeve surrounding this circumferentially, which has at least one passage opening and is axially connected on one side to a feed line for feeding the blasting agent.
  • Such a surface treatment device is specified in DE 195 36 723 C2.
  • a so-called centrifugal wheel an outer main centrifugal wheel for ejecting an abrasive is onto the surface to be treated and is concentric with it arranged central impeller provided with an auxiliary centrifugal wheel, to which the blasting medium is fed axially from a blasting medium supply.
  • the auxiliary centrifugal wheel has auxiliary vanes protruding radially on a central axis, which protrude considerably towards the feed line beyond the axis-normal edge plane of the main centrifugal wheel, in order to set the blasting agent entering the impeller in a spiral orbit before it enters the auxiliary centrifugal wheel, on which it then moves gets into the main centrifugal wheel.
  • ribs are arranged in an impeller cage which can be rotated, and the impeller cage is connected to a sleeve which also rotates with it and which extends from one end of a feed line to the impeller.
  • Extended cage This measure is also intended to set the abrasive in rotation at an early stage.
  • the invention has for its object to provide a surface treatment device of the type mentioned, with a simple structure, the centrifugal wheel is subject to a small and even wear and gives a uniform spray pattern on the surface to be treated, in which the contours have no significant scatter ,
  • the auxiliary blades have a rectangular shape in the side view or are stepped at their edge directed towards the axis of rotation or at least in sections are curved with an increasing clearance from the axis of rotation towards the feed side and are flat or - with respect to the radial direction one direction of rotation - are convexly or concavely curved and and that the front edges of the auxiliary blades and the main blades which face the feed line lie essentially in the same axis-normal plane.
  • a simple setting option for the beam direction and the beam pattern is that the guide sleeve can be fixed in a different rotational position and / or that the size of the passage opening can be changed.
  • the guide sleeve radially on its side facing away from the supply line has inwardly directed circumferential annular rim which surrounds a central opening in which an axially normal base plate connected to a drive shaft is arranged and that the auxiliary blades are attached to the base plate.
  • the construction is further favored by the fact that the guide sleeve on its side facing the feed line projects beyond the auxiliary blades in the axial direction and that an intermediate piece is inserted into the clear opening of the guide sleeve, which is placed on its side opposite the auxiliary centrifugal wheel on a facing end section of the feed line , wherein the intermediate piece extends from the feed line to the auxiliary centrifugal wheel approximately to the diameter of the auxiliary centrifugal wheel.
  • a configuration which is favorable for good conveying capacity and reduced wear also consists in that, with the curved edge of the auxiliary blades directed towards the axis of rotation, the curved section extends in the axial direction over a length of more than half and less than one eighth of the length of the auxiliary blade and in a radial direction Direction extends over more than half and less than one eighth of the width of the auxiliary blade, the remaining edge section being aligned in the axial direction parallel to the axis of rotation and in the radial direction perpendicular to the axis of rotation, and in that the curvature is essentially elliptical.
  • FIG. 1 is a partially sectioned side view of a surface treatment device
  • FIG. 2 shows a schematic illustration of the auxiliary centrifugal wheel shown in FIG. 1 in a side view and in an axial top view
  • Fig. 3 shows a further schematic representation of the auxiliary centrifugal wheel
  • a surface treatment device in the form of a centrifugal wheel with a drive 5, on the drive shaft of which a main centrifugal wheel 2 and an auxiliary centrifugal wheel 1 arranged concentrically thereto are connected by means of screws.
  • a fixed guide sleeve 3 with a window-like passage opening 3.1 for the passage of a blasting agent, which is fed axially to the auxiliary centrifugal wheel 1 via a feed line 4 and an intermediate piece 4.1 on the side opposite the drive 5.
  • the main centrifugal wheel 2 has a mounting plate 2.2 which is attached to the axis and on the outside of which, facing away from the drive 5, is a right side view. Corner-shaped main blades 2.1 are attached.
  • the main blades are arranged radially to the axis of rotation and can be flat or curved convex or concave with respect to the direction of rotation.
  • the auxiliary centrifugal wheel 1 has, with respect to the axis of rotation, which is concentric with the axis of rotation of the main centrifugal wheel 2, radially arranged auxiliary blades 1 .1, which are also rectangular in side view and can be flat or convex or concave in the direction of rotation.
  • the auxiliary blades 1.1 are arranged on an axially normal base plate 1 .2, which is positioned in a central opening on a side of the guide sleeve 3 facing the drive 5. Furthermore, the auxiliary blades 1 .1 are attached to the circumference of a central center tube 1 .3 (cf. FIG. 2).
  • the auxiliary centrifugal wheel 1 is fastened centrally to a drive shaft of the drive 5 by means of a screw guided through the central tube 1 .3 and can be rotated within the stationary guide sleeve 3.
  • the guide sleeve 3 can be rotated with the through opening 3.1 formed therein and can be fixed in a desired position. On the side facing away from the drive 5, the guide sleeve 3 projects axially beyond the auxiliary centrifugal wheel 1 or the main centrifugal wheel 2 and receives an intermediate piece 4 which widens conically from the supply line 4 to the auxiliary centrifugal wheel 1 and which faces the supply line 4 on its side placed on an end section of the feed line 4 and fixed to it by means of a clamping device 4.2.
  • the edges of the auxiliary blades 1 .1 and the main blades 3.1 facing the feed line 4 lie approximately in the same axis-normal plane, so that the blasting medium axially fed into the auxiliary blower wheel 1 from the auxiliary blower wheel 1 uniformly through the passage opening 3.1 onto the main blades 2.1
  • Main centrifugal wheel 2 guided and ejected by them to produce a uniform spray pattern on the surface to be treated.
  • the main blades 2.1 are approximately uniformly loaded by the blasting agent, so that there is uniform wear of the centrifugal wheel.
  • Fig. 4 also shows a side view and an axial top view of another embodiment of an auxiliary centrifugal wheel.
  • the center tube 1 .3 is omitted here.
  • the central clear space is preferably somewhat larger. As a result, a relatively large amount of the blasting medium reaches the auxiliary centrifugal wheel 1 and from there further to the outside.
  • Auxiliary blades 1 .1 are stepped at their central edge, the central edges being increasingly spaced apart from one another on the abrasive feed side.
  • the blasting agent supply to the auxiliary centrifugal wheel can also be increased by this configuration.
  • the auxiliary blades 1 .1 are inclined with respect to the direction of rotation, the incline in or against the rotational direction can be directed.
  • An inclined position with respect to the rotational axis direction is also conceivable. This configuration enables the blasting medium to be conveyed in the axial feed direction. An ejection speed to the main blades 2.1 can also be achieved with these measures.
  • FIG. 7 A further advantageous embodiment of the auxiliary centrifugal wheel 1 is shown in FIG. 7.
  • an edge section of the auxiliary blades 1 .1 directed towards the axis of rotation and spaced apart from the axis of rotation is curved with increasing distance from the feed side, the curvature e.g. runs approximately in the shape of an elliptical section and extends in the axial direction and also in the radial direction over more than half (length 11 or r1) but less than one eighth of the relevant axial edge length I or radial edge length r.
  • the relevant other edge sections of lengths 12 and r2 run parallel to the axis or perpendicular to the axis of rotation.
  • the center tube 1 .3 is shortened to the straight edge section or completely omitted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un dispositif de traitement de surfaces comprenant : une roue centrifuge principale (2) se trouvant à l'extérieur, servant à projeter un agent abrasif et présentant des pales principales (2.1) ; une roue centrifuge auxiliaire (1) disposée au centre de manière concentrique par rapport à ladite roue centrifuge principale et présentant des pales auxiliaires (1.1) ; et une gaine d'acheminement (3) fixe entourant ladite roue centrifuge auxiliaire, qui comprend au moins une ouverture d'entrée (3.1) et qui est raccordée de manière axiale sur l'un de ses côtés à une conduite d'amenée (4) servant à amener l'agent abrasif. Pour permettre d'obtenir une configuration du jet sensiblement homogène et une usure sensiblement homogène de la roue centrifuge, les pales auxiliaires (1.1), vues de côté, ont une forme rectangulaire ou une forme étagée ou arquée par rapport à l'axe de rotation, et sont plates en direction radiale, ou incurvées de manière convexe ou concave par rapport à une direction de rotation, et les bords frontaux des pales auxiliaires (1.1) et des pales principales (2), adjacents à la conduite d'amenée (4), se trouvent dans le même plan normal à l'axe.
PCT/EP2000/013325 1999-12-29 2000-12-28 Dispositif de traitement de surfaces WO2001049456A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00987469A EP1263550B1 (fr) 1999-12-29 2000-12-28 Dispositif de traitement de surfaces
DE50007571T DE50007571D1 (de) 1999-12-29 2000-12-28 Oberflächen-behandlungsvorrichtung
AT00987469T ATE274398T1 (de) 1999-12-29 2000-12-28 Oberflächen-behandlungsvorrichtung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19963699 1999-12-29
DE19963699.0 1999-12-29
DE10032119.4 2000-07-01
DE10032119A DE10032119A1 (de) 1999-12-29 2000-07-01 Oberflächen-Behandlungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2001049456A1 true WO2001049456A1 (fr) 2001-07-12

Family

ID=26006255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/013325 WO2001049456A1 (fr) 1999-12-29 2000-12-28 Dispositif de traitement de surfaces

Country Status (4)

Country Link
EP (1) EP1263550B1 (fr)
AT (1) ATE274398T1 (fr)
DE (1) DE20022853U1 (fr)
WO (1) WO2001049456A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2946882A1 (fr) * 2014-05-19 2015-11-25 WADEPHUL, Jost Impulseur d'alimentation en agent de grenaillage d'une turbine de grenaillage
CN111644988A (zh) * 2020-06-30 2020-09-11 盐城迪尔特抛丸设备有限公司 一种抛丸器及其应用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665832A (en) * 1941-09-05 1952-01-30 Pangborn Corp Abrading apparatus
CH321222A (fr) * 1952-09-23 1957-04-30 Pangborn Corp Appareil centrifuge à décaper
DE1279504B (de) * 1958-08-06 1968-10-03 Pangborn Corp Teilchenschleudergeraet
DE2538228A1 (de) * 1975-08-28 1977-03-10 Schlick Kg Heinrich Schleuderstrahlanlage
DE19536723A1 (de) * 1995-09-30 1997-04-17 Wadephul Jost Dipl Ing Schleuderrad
DE19800794C1 (de) * 1998-01-13 1999-05-20 Jost Dipl Ing Wadephul Schleuderrad
DE19838733C1 (de) * 1998-08-26 1999-11-25 Jost Wadephul Schleuderrad

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665832A (en) * 1941-09-05 1952-01-30 Pangborn Corp Abrading apparatus
CH321222A (fr) * 1952-09-23 1957-04-30 Pangborn Corp Appareil centrifuge à décaper
DE1279504B (de) * 1958-08-06 1968-10-03 Pangborn Corp Teilchenschleudergeraet
DE2538228A1 (de) * 1975-08-28 1977-03-10 Schlick Kg Heinrich Schleuderstrahlanlage
DE19536723A1 (de) * 1995-09-30 1997-04-17 Wadephul Jost Dipl Ing Schleuderrad
DE19800794C1 (de) * 1998-01-13 1999-05-20 Jost Dipl Ing Wadephul Schleuderrad
DE19838733C1 (de) * 1998-08-26 1999-11-25 Jost Wadephul Schleuderrad

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2946882A1 (fr) * 2014-05-19 2015-11-25 WADEPHUL, Jost Impulseur d'alimentation en agent de grenaillage d'une turbine de grenaillage
CN111644988A (zh) * 2020-06-30 2020-09-11 盐城迪尔特抛丸设备有限公司 一种抛丸器及其应用方法

Also Published As

Publication number Publication date
EP1263550A1 (fr) 2002-12-11
EP1263550B1 (fr) 2004-08-25
ATE274398T1 (de) 2004-09-15
DE20022853U1 (de) 2002-04-18

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