BE862932A - FIXING DEVICE FOR BLASTING TURBINE BLADES. - Google Patents
FIXING DEVICE FOR BLASTING TURBINE BLADES.Info
- Publication number
- BE862932A BE862932A BE184342A BE184342A BE862932A BE 862932 A BE862932 A BE 862932A BE 184342 A BE184342 A BE 184342A BE 184342 A BE184342 A BE 184342A BE 862932 A BE862932 A BE 862932A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- groove
- flange
- fixing device
- blades
- Prior art date
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
- B24C5/062—Rotor blades or vanes; Locking means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Dispositif de fixation pour aubes deturbine de grenaillage
La présente invention concerne un dispositif nouveau et simple pour fixer les aubes de*! turbines de ,grenaillage centrifuge. Ces turbines sont utilisées pour projeter de la grenaille sur la surface d'une pièce métallique afin de donner à cette surface un état de rugosité approprié. Ces turbines se composent d'un dispositif de distribution central qui fournit l'alimentation en grenaille et d'un certain nombre d'aubes ou palettes disposées radialement
<EMI ID=1.1>
La fixation des aubes aux flasques'de ces turbines de grenaillage se fait usuellement par excentrique. Ce mode de fixation, ne permet guère le remplacement aisé et rapide des aubes usées. Or l'usure des aubes des
<EMI ID=2.1>
fonction des vitesses pratiquées, et les aubes doivent
donc être remplacées fréquemment.
L'invention a pour objet un dispositif de fixation simple qui permet un remplacement aisé et rapide des aubes usées,
Le dispositif de fixation d'aubes suivant
l'invention comprend plusieurs rainures sur la face de chaque flasque de la turbine, tournée vers l'intérieur, chaque rainure contenant une goupille d'appui à son extrémité située vers le bord extérieur du flasque::
et un ressort logé à l'extrémité située vers le centre
du flasque. , chaque rainure étant destinée à recevoir un des listels prévus longitudinalement sur les flancs
des aubes, chaque listel étant enserré dans une rainure d'un flasque entre ledit ressort et ladite goupille d'appui par la pression longitudinale appliquée par le ressort.
Un mode d'exécution de ce dispositif est décrit ci-après en se référant aux dessins joints sur lesquels:
<EMI ID=3.1>
de la figure 2 avec une aube partiellement dégagée.
Se reportant à la. figure 1, on voit une partie d'une turbine de grenaillage comportant deux flasques A et B reliés par des axes C et entre lesquels sont fixées des aubes 1. Ces aubes se trouvent fixées sur chacun des flasques A et B par l'intermédiaire d'un dispositif do
<EMI ID=4.1>
est une vue suivant la ligne II-II de la figure 1 et la figure 3 est une vue en coupe suivant la ligne III-III de la figure 2. Sur cette dernière figure est dessinée en pointillé la position du profil longitudinal d'une aube ayant à titre d'exemple un profil courbe tel que décrit dans la demande de brevet 6/46239. Chaque flasque comporte sur la face tournée vers l'intérieur plusieurs rainures 2 contenant chacune (voir notamment figure 3) une goupille d'appui 3 à son extrémité située vers le bord extérieur du flasque et un ressort 4 logé à son extrémité située vers le centre du flasque. Le ressort 4 est maintenu en place par une pièce de maintien 5. Chaque -rainure 2 est destinée à recevoir <EMI ID=5.1>
être engagée dans une rainure de fixation.
Pour faciliter l'insertion et le dégagement d'un listai dans une rainure 2)Celle**ci est avantageusement
<EMI ID=6.1>
de la rainure 2 ont des positions angulaires décalées
<EMI ID=7.1>
et le rebord 23 bloque une extrémité du listel en position.
Lorsque la turbine est en rotation, les listels sont évidemment portés et cales dans les encoches 24 par la force centrifuge, les rebords 23 assurant le calage parfait des aubes,
<EMI ID=8.1>
Fastening device for shot blasting turbine blades
The present invention relates to a new and simple device for fixing the vanes of *! turbines, centrifugal shot blasting. These turbines are used to project shot on the surface of a metal part in order to give this surface an appropriate state of roughness. These turbines consist of a central distribution device which provides the feed of the shot and a number of vanes or vanes arranged radially.
<EMI ID = 1.1>
The blades are attached to the flanges of these shot-blasting turbines usually by eccentric. This method of fixing hardly allows the easy and rapid replacement of worn blades. However, the wear of the blades
<EMI ID = 2.1>
depending on the speeds applied, and the vanes must
therefore be replaced frequently.
The object of the invention is a simple fixing device which allows easy and rapid replacement of worn blades,
The following blade attachment device
the invention comprises several grooves on the face of each flange of the turbine, facing inward, each groove containing a support pin at its end located towards the outer edge of the flange:
and a spring housed at the end located towards the center
of the flange. , each groove being intended to receive one of the listels provided longitudinally on the sides
vanes, each listel being clamped in a groove of a flange between said spring and said support pin by the longitudinal pressure applied by the spring.
An embodiment of this device is described below with reference to the accompanying drawings in which:
<EMI ID = 3.1>
of Figure 2 with a partially released blade.
Referring to. Figure 1 shows part of a blasting turbine comprising two flanges A and B connected by axes C and between which are fixed blades 1. These blades are fixed on each of the flanges A and B by means of 'a device do
<EMI ID = 4.1>
is a view along line II-II of Figure 1 and Figure 3 is a sectional view along line III-III of Figure 2. In this last figure is drawn in dotted lines the position of the longitudinal profile of a blade having for example a curved profile as described in patent application 6/46239. Each flange has on the face turned inward several grooves 2 each containing (see in particular Figure 3) a support pin 3 at its end located towards the outer edge of the flange and a spring 4 housed at its end located towards the center of the flange. The spring 4 is held in place by a retaining piece 5. Each groove 2 is intended to receive <EMI ID = 5.1>
be engaged in a fixing groove.
To facilitate the insertion and release of a listai in a groove 2) This ** this is advantageously
<EMI ID = 6.1>
of the groove 2 have offset angular positions
<EMI ID = 7.1>
and the rim 23 locks one end of the listel in position.
When the turbine is rotating, the listels are obviously carried and wedged in the notches 24 by centrifugal force, the flanges 23 ensuring the perfect setting of the blades,
<EMI ID = 8.1>
Claims (1)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE184342A BE862932A (en) | 1978-01-16 | 1978-01-16 | FIXING DEVICE FOR BLASTING TURBINE BLADES. |
ES476336A ES476336A1 (en) | 1978-01-16 | 1978-12-26 | Shotting turbine |
DE19792900211 DE2900211A1 (en) | 1978-01-16 | 1979-01-04 | FASTENING DEVICE FOR SHOVELS ON STEEL SAND TURBINES |
FR7900140A FR2414386A1 (en) | 1978-01-16 | 1979-01-04 | FIXING DEVICE FOR BLASTING TURBINE BLADES |
CH3779A CH628833A5 (en) | 1978-01-16 | 1979-01-04 | DEVICE FOR FIXING THE BLADES OF A CENTRIFUGAL SHOT BLASTING TURBINE. |
AT10479A AT357428B (en) | 1978-01-16 | 1979-01-05 | SPIN WHEEL |
LU80780A LU80780A1 (en) | 1978-01-16 | 1979-01-11 | FIXING DEVICE FOR BLASTING TURBINE BLADES |
JP215079A JPS54102684A (en) | 1978-01-16 | 1979-01-11 | Device for fixing peennhardened turbine blade |
IT19257/79A IT1111951B (en) | 1978-01-16 | 1979-01-12 | FIXING DEVICE FOR TURBINE BLADES FOR CENTRIFUGAL GRINDING FOR THE QUICK REPLACEMENT OF THE BLADES |
SE7900298A SE428894B (en) | 1978-01-16 | 1979-01-12 | SLOW WHEEL FOR DISPOSAL OF BLASTING AGENT TO THE SURFACE OF A WORK PIECE |
CA319,672A CA1103907A (en) | 1978-01-16 | 1979-01-15 | Holding device for shot peening drum blades |
NL7900330A NL7900330A (en) | 1978-01-16 | 1979-01-16 | DEVICE FOR SECURING SHEETS OF A CENTRIFUGE. |
GB7901542A GB2016322B (en) | 1978-01-16 | 1979-01-16 | Shotting turbine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE184342A BE862932A (en) | 1978-01-16 | 1978-01-16 | FIXING DEVICE FOR BLASTING TURBINE BLADES. |
BE862932 | 1978-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE862932A true BE862932A (en) | 1978-05-16 |
Family
ID=25650525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE184342A BE862932A (en) | 1978-01-16 | 1978-01-16 | FIXING DEVICE FOR BLASTING TURBINE BLADES. |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE862932A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277965A (en) * | 1977-11-24 | 1981-07-14 | Cockerill | Centrifugal shotting turbine |
EP3064320A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Centrifugal projector and blade |
EP3064318A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Centrifugal projector |
EP3064319A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Side plate unit and centrifugal projector |
-
1978
- 1978-01-16 BE BE184342A patent/BE862932A/en not_active IP Right Cessation
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277965A (en) * | 1977-11-24 | 1981-07-14 | Cockerill | Centrifugal shotting turbine |
EP3064320A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Centrifugal projector and blade |
EP3064318A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Centrifugal projector |
EP3064319A4 (en) * | 2013-10-31 | 2017-05-31 | Sintokogio, Ltd. | Side plate unit and centrifugal projector |
US10071463B2 (en) | 2013-10-31 | 2018-09-11 | Sintokogio, Ltd. | Centrifugal projector |
US10105818B2 (en) | 2013-10-31 | 2018-10-23 | Sintokogio, Ltd. | Centrifugal projector and blade |
US10112284B2 (en) | 2013-10-31 | 2018-10-30 | Sintokogio, Ltd. | Side plate unit and centrifugal projector |
RU2673261C2 (en) * | 2013-10-31 | 2018-11-23 | Синтокогио, Лтд. | Centrifugal shot-blasting apparatus and blade |
RU2674058C2 (en) * | 2013-10-31 | 2018-12-04 | Синтокогио, Лтд. | Side plate unit and centrifugal projector |
EP3470175A1 (en) * | 2013-10-31 | 2019-04-17 | Sintokogio, Ltd. | Centrifugal projector and blade |
US10850367B2 (en) | 2013-10-31 | 2020-12-01 | Sintokogio, Ltd. | Centrifugal projector |
US10960514B2 (en) | 2013-10-31 | 2021-03-30 | Sintokogio, Ltd. | Centrifugal projector and blade |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: COCKERILL-OUGREE-PROVIDENCE ET ESPERANCE-LONGDOZ Effective date: 19980116 |