EP0175809A1 - Rotor de ventilateur axial muni de pales individuellement réglables - Google Patents

Rotor de ventilateur axial muni de pales individuellement réglables Download PDF

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Publication number
EP0175809A1
EP0175809A1 EP84111563A EP84111563A EP0175809A1 EP 0175809 A1 EP0175809 A1 EP 0175809A1 EP 84111563 A EP84111563 A EP 84111563A EP 84111563 A EP84111563 A EP 84111563A EP 0175809 A1 EP0175809 A1 EP 0175809A1
Authority
EP
European Patent Office
Prior art keywords
impeller
hub
impeller 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.)
Granted
Application number
EP84111563A
Other languages
German (de)
English (en)
Other versions
EP0175809B1 (fr
Inventor
Gert Hecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP19840111563 priority Critical patent/EP0175809B1/fr
Priority to DE8484111563T priority patent/DE3464645D1/de
Priority to DK414785A priority patent/DK160955C/da
Publication of EP0175809A1 publication Critical patent/EP0175809A1/fr
Application granted granted Critical
Publication of EP0175809B1 publication Critical patent/EP0175809B1/fr
Expired legal-status Critical Current

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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 DE-PS 25 50 755.
  • each blade is plugged radially 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 disk.
  • the impeller is to be significantly simplified with regard to the manufacture and assembly of its individual components.
  • the inventive design of the individual components such as a shovel with a pivot pin and preferably integrally molded mounting flange and impeller hub with molded axial slot holes only requires accuracies as can be achieved with conventional light metal casting processes without reworking, with all components except for the holes for the screws in casting technology can advantageously be produced with molded parts that can only be pulled in the axial direction and can be assembled in a technically advantageous manner in only one main direction of handling;
  • the wing adjustment and wing lock can be easily accessed on the fully assembled impeller without dismantling individual components or complicated additional fastening construction parts, with the impeller already attached to the shaft of the drive motor.
  • a relatively large friction and / or form-fitting contact between the inner surface of the outer edge of the impeller hub and the blade to be fixed can be achieved in a simple manner by means of the mounting flange which is preferably integrally molded on the foot side of the pivot.
  • 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 of the fastening flanges to be fixed trained and thus a clear flat contact between the corresponding hub part and blade attachment part is always guaranteed over the entire wing adjustment range.
  • a slot which is concentric with the axis of rotation of the blade is expediently provided for inserting the screw.
  • 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 pivot pins being separated from the slot openings and / or the counter-slot openings are included in the sense of a fault-free air line.
  • Fig.l shows an impeller screwed onto a drive shaft 15.
  • 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 by means of their plug pins 11 and their mounting flanges 2 - as can be seen in particular from FIG.
  • slot openings 5 are formed in the outer edge of the actual impeller hub 4 on the outflow side, into which the blades 1 with their plug pins 11 axially can be inserted, the slot openings 5 each being overlapped radially on the inside by the mounting flange 2 integrally molded on the foot side of the plug pin 11, that is to say with a surface which extends via the slot hole 5 and comes into contact with the inner surface 42 of the outer edge of the impeller hub 4.
  • 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 nut 31 lying on the inside of the fastening flange 2, which is secured against twisting by two lateral guide webs 8, 8 integrally formed on the fastening flange 2.
  • the contact surfaces of the mounting flange 2 and the inner surface 42 of the outer edge of the impeller hub 4 can be clamped against one another in a force-fitting and / or form-fitting manner in the region of the contact surfaces 6.
  • each blade for example by hand, is set to the desired blade angle, the screw 3 moving in the region of the fastening flange 2 within the elongated hole 21.
  • the screw 3 is moved from the outside tightened or screwed into the non-rotatably mounted nut 31 and thus fixes the blade 1 in its intended position.
  • 4 setting markings 9 are provided on the impeller hub in the area of the tip of the blade 1 that moves during the adjustment.
  • the two-part impeller design provided according to an embodiment of the invention with an individually different sizes and operating conditions, e.g. Different diameters of the drive shaft 15, adaptable, designed as a rotating part inner hub body 14 and attached to it, concentric, designed as a uniform universal component, the actual blade hub 4 accommodating the adjustable blade attachment further simplifies production and assembly, since the necessary variants of the components are exclusively can remain limited to the inner hub body 14 designed as a rotating part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP19840111563 1984-09-27 1984-09-27 Rotor de ventilateur axial muni de pales individuellement réglables Expired EP0175809B1 (fr)

Priority Applications (3)

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
DE8484111563T DE3464645D1 (en) 1984-09-27 1984-09-27 Rotor for an axial-flow ventilating fan having individually adjustable blades
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 true EP0175809A1 (fr) 1986-04-02
EP0175809B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Citations (11)

* Cited by examiner, † Cited by third party
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
FR1207918A (fr) * 1958-07-24 1960-02-19 Hudson Engineering Corp Dispositif d'accouplement perfectionné pour ailettes de ventilateur
GB853564A (en) * 1958-07-17 1960-11-09 Roy William Brown A M I Mech E Improvements in or relating to axial flow fans
DE1426883A1 (de) * 1965-12-17 1969-01-23 Voith Getriebe Kg Schaufelbefestigung
US3428244A (en) * 1965-10-22 1969-02-18 Turbon Gmbh Bladed wheels
DE2054826A1 (de) * 1970-11-07 1972-05-10 Siemens Ag Verfahren zum Herstellen von Klemmringen und Nabenkörpern aus Guß oder Kunststoff für Flügelräder
FR2267465A1 (fr) * 1974-04-12 1975-11-07 Svenska Flaektfabriken Ab
DE2719099A1 (de) * 1977-04-29 1978-11-02 Mueller & Co Helios App Luefterrad

Patent Citations (11)

* Cited by examiner, † Cited by third party
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
US3428244A (en) * 1965-10-22 1969-02-18 Turbon Gmbh Bladed wheels
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
FR2267465A1 (fr) * 1974-04-12 1975-11-07 Svenska Flaektfabriken Ab
DE2719099A1 (de) * 1977-04-29 1978-11-02 Mueller & Co Helios App Luefterrad

Cited By (3)

* Cited by examiner, † Cited by third party
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
WO2009012977A2 (fr) 2007-07-25 2009-01-29 Georg Hamann Dispositif de production d'énergie à partir d'un courant de fluide
WO2009012977A3 (fr) * 2007-07-25 2009-11-26 Georg Hamann Dispositif de production d'énergie à partir d'un courant de fluide

Also Published As

Publication number Publication date
EP0175809B1 (fr) 1987-07-08
DK160955B (da) 1991-05-06
DE3464645D1 (en) 1987-08-13
DK160955C (da) 1991-10-28
DK414785A (da) 1986-03-28
DK414785D0 (da) 1985-09-12

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