EP0175809B1 - Rotor de ventilateur axial muni de pales individuellement réglables - Google Patents
Rotor de ventilateur axial muni de pales individuellement réglables Download PDFInfo
- Publication number
- EP0175809B1 EP0175809B1 EP19840111563 EP84111563A EP0175809B1 EP 0175809 B1 EP0175809 B1 EP 0175809B1 EP 19840111563 EP19840111563 EP 19840111563 EP 84111563 A EP84111563 A EP 84111563A EP 0175809 B1 EP0175809 B1 EP 0175809B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- hub
- rotor hub
- slot
- outer edge
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D7/00—Rotors with blades adjustable in operation; Control thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
Definitions
- the invention relates to an impeller for an axial fan with individually adjustable blades according to the preamble of claim 1; such an impeller is known from GB-A-853 564.
- U-shaped wire brackets are provided for the actual operational fixing of the blades in the impeller hub, which comprise the plug pins inserted into the slot holes on their axially free side and by screwing their free leg ends in the impeller hub can be tightened against the spigot.
- a collar radially overlapping the slot hole serves for the radial, positive guidance of the blades during their adjustment before the actual fixing by tightening the U-shaped wire bracket.
- each blade is inserted radially with its plug pin into a bore in the outer edge of the impeller hub;
- a screw can be screwed from the inner surface of the outer edge of the impeller hub into a blind hole with a cut thread in the axis of rotation of the plug-in pin;
- a locking washer and a washer with a locking pin protruding radially against the locking washer and the foot surface of the pivot pin are arranged between the screw head and the lower foot surface of the plug pin pin holes parallel to the axis of rotation can be inserted in the foot surface of the plug pin and the locking washer.
- the impeller is to be significantly simplified with regard to the manufacture and reliable assembly of its individual components.
- a clear planar contact between the corresponding hub part and blade attachment part over the entire wing adjustment area can be ensured in a simple manner that, according to one embodiment of the invention, the inner surface of the outer edge of the impeller hub in the manner of a polygon corresponding to the number of blades with contact surfaces for the parts to be determined the mounting flange is formed.
- a particularly simple screw fastening of the blades via the mounting flanges formed on their trunnions in the outer edge of the impeller hub is possible in that the screws are each provided with the fastening flange against the inner surface of the outer edge of the impeller hub, which are tightened by nuts on the inner surface attached side guide bars can be inserted against rotation.
- a further advantageous embodiment of the invention is characterized by a hub ring that can be plugged onto the impeller hub from axially backwards with axial counter-slot openings to the axial slot openings provided in the impeller hub with the axially inserted pivot pins.
- the impeller contains, inter alia, an inner hub body 14 which is screwed onto the drive shaft 15 and the actual impeller hub 4 with the inserted blades 1 and a hub ring 12 which is screwed onto the inner hub body 14.
- a plug pin 11 with a mounting flange is integrally attached to the bottom of each blade 1 2 molded. To hold the blades 1 via their plug pins 11 and their mounting flanges 2 - as can be seen in particular from FIG.
- Each blade insertion point is assigned a bore 7 in the outer edge of the impeller hub 4 and an elongated hole 21 in the fastening flange 2 through which a screw 3 can be inserted, which is supported with its screw head on the outer surface 41 of the outer edge of the impeller hub 4 and one radially Has on the inside of the mounting flange 2 nut 31 which is secured against twisting by two lateral guide webs 8, 8 formed on the mounting flange 2.
- each blade e.g. B. by hand, set to the desired blade angle
- the screw 3 and the elongated hole 21 move rotatively to each other.
- the screw 3 is tightened from the outside or screwed into the non-rotatably mounted nut 31 and thus the blade 1 is fixed in its intended position.
- 4 setting markings 9 are provided on the impeller hub in the area of the tip of the blade 1 which moves during the adjustment.
- the slot openings 5 can be closed in the sense of an air line that is as trouble-free as possible and targeted air delivery can be ensured on the downstream side; in the same way as provided for the impeller hub 4, 12 markings can also be provided on the hub ring.
- the adjustable blade attachment receiving actual impeller hub 4 is a further manufacturing and assembly simplification possible, since the necessary variants of Components can remain limited to the inner hub body 14 designed as a turned part.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8484111563T DE3464645D1 (en) | 1984-09-27 | 1984-09-27 | Rotor for an axial-flow ventilating fan having individually adjustable blades |
EP19840111563 EP0175809B1 (fr) | 1984-09-27 | 1984-09-27 | Rotor de ventilateur axial muni de pales individuellement réglables |
DK414785A DK160955C (da) | 1984-09-27 | 1985-09-12 | Skovlhjul til en aksialventilator med enkeltvis indstillelige skovle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19840111563 EP0175809B1 (fr) | 1984-09-27 | 1984-09-27 | Rotor de ventilateur axial muni de pales individuellement réglables |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0175809A1 EP0175809A1 (fr) | 1986-04-02 |
EP0175809B1 true EP0175809B1 (fr) | 1987-07-08 |
Family
ID=8192181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840111563 Expired EP0175809B1 (fr) | 1984-09-27 | 1984-09-27 | Rotor de ventilateur axial muni de pales individuellement réglables |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0175809B1 (fr) |
DE (1) | DE3464645D1 (fr) |
DK (1) | DK160955C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007034618A1 (de) | 2007-07-25 | 2009-01-29 | Georg Hamann | Vorrichtung zur Erzeugung von Energie aus einer Fluidströmung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB114934A (fr) * | 1900-01-01 | |||
CH260170A (fr) * | 1947-04-08 | 1949-02-28 | Mertz Alfred | Roue pour ventilateur hélicoïdal. |
GB634486A (en) * | 1947-12-11 | 1950-03-22 | Walker Brothers Wigan Ltd | Improvements in or relating to axial flow ventilating fans |
GB826519A (en) * | 1957-05-10 | 1960-01-13 | Air Control Installations Ltd | Improvements in or relating to axial flow fans |
GB853564A (en) * | 1958-07-17 | 1960-11-09 | Roy William Brown A M I Mech E | Improvements in or relating to axial flow fans |
FR1207918A (fr) * | 1958-07-24 | 1960-02-19 | Hudson Engineering Corp | Dispositif d'accouplement perfectionné pour ailettes de ventilateur |
DE1503628B2 (de) * | 1965-10-22 | 1974-06-27 | Turbon Ventilatoren- Und Apparatebau Gmbh, 1000 Berlin | Flügelrad |
DE1426883A1 (de) * | 1965-12-17 | 1969-01-23 | Voith Getriebe Kg | Schaufelbefestigung |
DE2054826A1 (de) * | 1970-11-07 | 1972-05-10 | Siemens Ag | Verfahren zum Herstellen von Klemmringen und Nabenkörpern aus Guß oder Kunststoff für Flügelräder |
US3984194A (en) * | 1974-04-12 | 1976-10-05 | Aktiebolaget Svenska Flaktfabriken | Axial flow fans |
DE2719099C2 (de) * | 1977-04-29 | 1983-09-29 | Helios-Apparatebau KG, Müller & Co, 7730 Villingen-Schwenningen | Lüfterrad |
-
1984
- 1984-09-27 EP EP19840111563 patent/EP0175809B1/fr not_active Expired
- 1984-09-27 DE DE8484111563T patent/DE3464645D1/de not_active Expired
-
1985
- 1985-09-12 DK DK414785A patent/DK160955C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK414785D0 (da) | 1985-09-12 |
EP0175809A1 (fr) | 1986-04-02 |
DK414785A (da) | 1986-03-28 |
DK160955B (da) | 1991-05-06 |
DE3464645D1 (en) | 1987-08-13 |
DK160955C (da) | 1991-10-28 |
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