EP1761362A1 - Impeller for feeding blasting shots into a centrifugal wheel - Google Patents
Impeller for feeding blasting shots into a centrifugal wheelInfo
- Publication number
- EP1761362A1 EP1761362A1 EP05756082A EP05756082A EP1761362A1 EP 1761362 A1 EP1761362 A1 EP 1761362A1 EP 05756082 A EP05756082 A EP 05756082A EP 05756082 A EP05756082 A EP 05756082A EP 1761362 A1 EP1761362 A1 EP 1761362A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- legs
- blasting
- profile
- adjacent
- 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.)
- Granted
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
- B24C5/068—Transferring the abrasive particles from the feeding means onto the propeller blades, e.g. using central impellers
Definitions
- the invention relates to an impeller for feeding of blasting agent to be accelerated in the blast wheel of a blasting system, the impeller in the central region of the impeller within a metering sleeve having a metering opening is arranged, and is rotatable in the direction of rotation of the impeller and wherein the impeller trimmed on the metering sleeve ,
- tabular, guide elements for guiding the blasting agent to the outside which are arranged on at least one side window.
- the object of the invention is to reduce the abrasion caused by the blasting agent of the blast wheel and at the same time to produce a spray pattern with uniform coverage over the entire ejection angle of the blasting medium from the blast wheel with approximately parallel side boundary.
- the legs of the profile piece on the one hand in the direction of the metering sleeve and on the other hand at least approximately in the direction of the axis of rotation of the impeller.
- the leg ends of the profile piece which are aligned with the dispensing sleeve are spaced apart in the circumferential direction of the impeller, in particular in the circumferential direction of the side window, a recess accessible from the direction of the dispensing sleeve being arranged between the legs, in particular a cavity into which the abrasive penetrates or can dodge.
- the recess or the cavity can be formed directly by the legs.
- the two legs of the profile piece preferably extend at an angle to each other, in particular at least approximately V-shaped or the two legs form a V-shape.
- at least one leg, preferably both legs of the profile piece extend at an angle to the radial direction of the impeller, in particular the side window.
- the legs of the profile pieces can be connected to each other in a further embodiment by a preferably extending at an angle to the legs web.
- the web can run, for example, straight or curved. It is also possible, the legs of the profile pieces of different lengths form. It has also proven useful to provide between the legs of the profile pieces in the direction of the dispensing sleeve extending, preferably tabular transport elements.
- the design of the guide elements according to the invention as legs of profile pieces achieves the following: First, the blasting medium enters the chambers between the dispensing sleeve and the impeller via the discharge channels with channel-end discharge openings from the rotating impeller to a virtually circular path. Subsequently, the blasting medium circulates in this area between the metering sleeve and the impeller along this circular path. By the forces, by the in particular free thighs of the Profile pieces and optionally act on the blasting agent of the transport elements between the legs of the profile pieces, this is finally transferred as tangentially as possible from the metering opening of the metering sleeve in the effective range of the blades of the blast wheel. This results in a smooth transition of the blasting agent in the blade area of the blast wheel over the entire width with subsequent uniform acceleration to the blade outlet. The impact of the blasting agent on the blades and side walls of the blast wheel is substantially suppressed.
- the bumpless transition of the blasting agent acting as a central accelerator impeller in the impeller causes a uniform guidance of the blasting agent in the impeller, whereby not only a uniform distribution of the blasting agent is achieved on the surface to be treated, but also the wear on the impeller and the acceleration of the blasting medium energy to be reduced.
- Fig. 1 is a schematic sectional view of an impeller according to the invention.
- an impeller 2 is shown in a schematic sectional view, which is arranged in the interior of a metering sleeve 1 of a blast wheel of a blasting machine, not shown.
- the impeller 2 has profile pieces 3, which are attached to one of the end sides of a first side window 4.
- a second side window is assigned to the first side window 4 in the axial direction opposite one another, so that the profile sections 3 are arranged between the two side windows.
- the profile pieces 3 can in principle also be integrally connected to the front side of the side window 4.
- the profile pieces 3 are raised relative to the front side plane of the side window 4, ie they form elevations with respect to this plane.
- the individual profile pieces are distributed in the circumferential direction over the circumferential edge region of the end face of the side window 4. In this case, each profile piece 3 is spaced from the respective adjacent profile piece 3 in the circumferential direction.
- the profile pieces 3 each have two serving as blasting agent guide elements legs 5 and 6, which are connected to each other at their at least approximately to the impeller center or to the impeller rotation axis ends.
- the legs 5 and 6 point with their free ends on the metering sleeve 1, wherein in each case between the legs 5 and 6 from the direction of the dispensing sleeve accessible cavities are formed.
- the profile pieces 3 are distributed in the circumferential direction over the circumferential edge region of the end face of the side window 4 such that channels 7 are formed between adjacent legs of adjacent profile pieces.
- legs 5 and 6 of a profile piece 3 may, as shown in a sector A of the impeller 2, describe a V-shape.
- the legs 5 and 6 may also be connected to one another via a web 9, cf. Sector B, so that the profile piece 3 is formed approximately overall as a U-shape.
- a variety of shapes are conceivable, such as an L-shape.
- the otherwise closed dispensing sleeve 1 is circumferentially provided with a discharge opening 8.
- blasting medium is guided via unillustrated feed lines in the axial direction into the center of the impeller 2.
- the blasting agent is then guided radially outward along the channels 7 by the impeller 2, which is set into a rotational movement by means of a drive (not shown).
- the blasting agent is finally discharged into the angular range of the blades of a blaster wheel, not shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
- Soil Working Implements (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Catching Or Destruction (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05756082T PL1761362T3 (en) | 2004-06-24 | 2005-06-24 | Impeller for feeding blasting shots into a centrifugal wheel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004009959 | 2004-06-24 | ||
PCT/EP2005/006829 WO2006000426A1 (en) | 2004-06-24 | 2005-06-24 | Impeller for feeding blasting shots into a centrifugal wheel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1761362A1 true EP1761362A1 (en) | 2007-03-14 |
EP1761362B1 EP1761362B1 (en) | 2008-06-11 |
Family
ID=34971459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05756082A Active EP1761362B1 (en) | 2004-06-24 | 2005-06-24 | Impeller for feeding blasting shots into a centrifugal wheel |
Country Status (19)
Country | Link |
---|---|
US (1) | US7670207B2 (en) |
EP (1) | EP1761362B1 (en) |
JP (1) | JP4861313B2 (en) |
CN (1) | CN100566943C (en) |
AT (1) | ATE397999T1 (en) |
AU (1) | AU2005256497A1 (en) |
BR (1) | BRPI0512412A (en) |
CA (1) | CA2571532C (en) |
DE (1) | DE502005004414D1 (en) |
ES (1) | ES2308512T3 (en) |
HK (1) | HK1103923A1 (en) |
IL (1) | IL180214A (en) |
MX (1) | MXPA06015013A (en) |
NO (1) | NO331472B1 (en) |
PL (1) | PL1761362T3 (en) |
RU (1) | RU2354533C2 (en) |
UA (1) | UA89191C2 (en) |
WO (1) | WO2006000426A1 (en) |
ZA (1) | ZA200610788B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029437B4 (en) * | 2006-06-20 | 2011-09-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for the centrifugal blasting of sensitive blasting media, in particular dry ice |
DE102010053172B4 (en) * | 2010-12-03 | 2017-06-01 | Jost Wadephul | Impeller for accelerating abrasive |
CZ2015295A3 (en) * | 2015-04-29 | 2016-03-23 | Vysoké Učení Technické V Brně | Accelerator of solid carbon dioxide pellets |
CN106425885A (en) * | 2016-11-04 | 2017-02-22 | 济南大学 | Shot blasting machine with V-shaped blades |
CN106425886A (en) * | 2016-11-04 | 2017-02-22 | 济南大学 | Y-shaped blade shot blaster |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2204618A (en) * | 1932-10-12 | 1940-06-18 | American Foundry Equip Co | Direct impulse sandblast system |
US2204632A (en) * | 1934-02-05 | 1940-06-18 | American Foundry Equip Co | Abrasive throwing machine |
US2204635A (en) * | 1934-02-05 | 1940-06-18 | American Foundry Equip Co | Centrifugal abrading machine |
US2135510A (en) * | 1936-11-14 | 1938-11-08 | American Foundry Equip Co | Centrifugal abrading device |
US2301508A (en) * | 1939-03-14 | 1942-11-10 | Mills Alloys Inc | Abrasive throwing wheel |
US2341559A (en) * | 1941-09-05 | 1944-02-15 | Pangborn Corp | Abrading apparatus |
GB654420A (en) * | 1942-06-12 | 1951-06-20 | Pangborn Corp | Abrading apparatus |
US3675373A (en) * | 1970-05-28 | 1972-07-11 | Ibm | Free particle impact machining process and apparatus employing the same |
GB1320641A (en) * | 1971-03-29 | 1973-06-20 | Vacu Blast Ltd | Impelling wheel for particulate material |
US4126280A (en) * | 1977-07-13 | 1978-11-21 | Black Clawson, Inc. | Impact crusher |
SU1098776A1 (en) | 1982-10-11 | 1984-06-23 | Тольяттинский политехнический институт | Shot-peening apparatus |
SU1114536A2 (en) | 1982-10-14 | 1984-09-23 | Ростовский-на-Дону научно-исследовательский институт технологии машиностроения | Shot blasting apparatus |
GB9014994D0 (en) * | 1990-07-06 | 1990-08-29 | Tilghman Wheelabrator Ltd | Abrasive throwing wheel assemblies |
CA2126501C (en) * | 1994-06-22 | 2000-01-18 | Edward J. Stoltz | Blade and wheel plate for blast cleaning wheel and method of connecting a blade to the wheel plate |
US5584748A (en) * | 1995-01-10 | 1996-12-17 | Nelco Manufacturing Corp. | Blast wheel having a rotatable shaft with radial discs and blades dovetailed across the discs |
CN2288045Y (en) * | 1997-03-07 | 1998-08-19 | 余茂村 | Impeller structure for sand blasting machine |
DE19838733C1 (en) * | 1998-08-26 | 1999-11-25 | Jost Wadephul | Thrower wheel for sprayer |
US6447378B1 (en) * | 2000-03-08 | 2002-09-10 | Disa Goff, Inc. | Abrasive throwing wheel and abrasive throwing blade |
JP2003275963A (en) * | 2002-03-25 | 2003-09-30 | Sintokogio Ltd | Centrifugal blast wheel |
DE10216350A1 (en) * | 2002-04-13 | 2003-10-30 | Damir Jankov | blower |
DE10216351A1 (en) * | 2002-04-13 | 2003-10-23 | Damir Jankov | blower |
US6981910B1 (en) * | 2004-07-30 | 2006-01-03 | Goff James R | Throwing wheel assembly |
US20080076333A1 (en) * | 2006-09-22 | 2008-03-27 | Pangborn Corporation | Throwing blade connection assembly for abrasive throwing wheel |
-
2005
- 2005-06-24 WO PCT/EP2005/006829 patent/WO2006000426A1/en active IP Right Grant
- 2005-06-24 RU RU2007102584/02A patent/RU2354533C2/en active
- 2005-06-24 CN CNB2005800207472A patent/CN100566943C/en not_active Expired - Fee Related
- 2005-06-24 JP JP2007517208A patent/JP4861313B2/en not_active Expired - Fee Related
- 2005-06-24 MX MXPA06015013A patent/MXPA06015013A/en active IP Right Grant
- 2005-06-24 DE DE502005004414T patent/DE502005004414D1/en active Active
- 2005-06-24 EP EP05756082A patent/EP1761362B1/en active Active
- 2005-06-24 PL PL05756082T patent/PL1761362T3/en unknown
- 2005-06-24 US US11/570,808 patent/US7670207B2/en active Active
- 2005-06-24 CA CA2571532A patent/CA2571532C/en not_active Expired - Fee Related
- 2005-06-24 ES ES05756082T patent/ES2308512T3/en active Active
- 2005-06-24 AU AU2005256497A patent/AU2005256497A1/en not_active Abandoned
- 2005-06-24 BR BRPI0512412-3A patent/BRPI0512412A/en not_active IP Right Cessation
- 2005-06-24 AT AT05756082T patent/ATE397999T1/en active
- 2005-06-24 UA UAA200700719A patent/UA89191C2/en unknown
-
2006
- 2006-12-20 IL IL180214A patent/IL180214A/en not_active IP Right Cessation
- 2006-12-20 ZA ZA200610788A patent/ZA200610788B/en unknown
-
2007
- 2007-01-05 NO NO20070092A patent/NO331472B1/en unknown
- 2007-07-27 HK HK07108201.1A patent/HK1103923A1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006000426A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2308512T3 (en) | 2008-12-01 |
CA2571532C (en) | 2010-06-08 |
CN100566943C (en) | 2009-12-09 |
US7670207B2 (en) | 2010-03-02 |
BRPI0512412A (en) | 2008-03-04 |
US20080268754A1 (en) | 2008-10-30 |
RU2007102584A (en) | 2008-07-27 |
JP2008503362A (en) | 2008-02-07 |
ZA200610788B (en) | 2007-11-28 |
HK1103923A1 (en) | 2007-12-28 |
IL180214A0 (en) | 2007-07-04 |
MXPA06015013A (en) | 2007-05-09 |
UA89191C2 (en) | 2010-01-11 |
CA2571532A1 (en) | 2006-01-05 |
PL1761362T3 (en) | 2008-11-28 |
NO20070092L (en) | 2007-03-26 |
DE502005004414D1 (en) | 2008-07-24 |
CN1972781A (en) | 2007-05-30 |
EP1761362B1 (en) | 2008-06-11 |
NO331472B1 (en) | 2012-01-09 |
RU2354533C2 (en) | 2009-05-10 |
AU2005256497A1 (en) | 2006-01-05 |
WO2006000426A1 (en) | 2006-01-05 |
JP4861313B2 (en) | 2012-01-25 |
IL180214A (en) | 2010-05-31 |
ATE397999T1 (en) | 2008-07-15 |
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