EP0826884B1 - Ventilateur - Google Patents

Ventilateur Download PDF

Info

Publication number
EP0826884B1
EP0826884B1 EP97110004A EP97110004A EP0826884B1 EP 0826884 B1 EP0826884 B1 EP 0826884B1 EP 97110004 A EP97110004 A EP 97110004A EP 97110004 A EP97110004 A EP 97110004A EP 0826884 B1 EP0826884 B1 EP 0826884B1
Authority
EP
European Patent Office
Prior art keywords
fan
fan wheel
driving element
take
fan according
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 - Lifetime
Application number
EP97110004A
Other languages
German (de)
English (en)
Other versions
EP0826884A2 (fr
EP0826884A3 (fr
Inventor
Peter Bruder
Daniel Dipl.-Ing. Klumpp (Ba)
Frank Dr.-Ing. Melzer
Jens Dipl.-Ing. Ulrich
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0826884A2 publication Critical patent/EP0826884A2/fr
Publication of EP0826884A3 publication Critical patent/EP0826884A3/fr
Application granted granted Critical
Publication of EP0826884B1 publication Critical patent/EP0826884B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts

Definitions

  • the invention is based on a fan in which a fan wheel by means of a Driving element is connected to a shaft.
  • Such a fan is known from DE 44 15 915 C1.
  • the fan consists of a Fan wheel and a fan hub, on which the fan blades are firmly attached.
  • the fan wheel is arranged on a shaft in the direction of the free shaft end two Has shoulders. On the second of the free shaft end A drive plate is attached to the stop shoulder.
  • the fan wheel is with the Fan hub is loosely attached to the shaft end and is held in place with a retaining screw the face of the shaft is screwed in, secured.
  • the fan wheel has between the from the shaft end from the first shoulder and the Retaining screw axial play. The fan wheel can be on the Turn the shaft so that the shaft has no torque directly transfers.
  • the motor torque is transferred from the shaft to the fan wheel Transfer drive disc, which is via spring or Damping elements with the fan hub in the direction of rotation connected is.
  • the damping elements transmit that Torque and also aim that the fan wheel from Vibrations of the shaft is decoupled.
  • the decoupling of the Fan from the vibration of the shaft will only reached when the fan wheel is loose, d. H. with axial and radial play, is mounted on the shaft, otherwise over this connection the vibrations are transmitted.
  • the fan wheel has an imbalance or a height or Flattened face so that the fan wheel wobbles when Runs, so this can not be sufficient by the loose fit of the fan hub on the shaft can be reduced.
  • the fan wheel itself becomes a high-frequency vibration exciter. Especially with larger fan wheels, where the Amplitude of the wobble from inside to outside according to the Beam set significantly enlarged and therefore large forces generated, this can lead to the fan hub deflects, the fan wheel rubs against the housing and the fan and the adjacent components are destroyed.
  • the described fan has through the damping elements, which is between the driving element and the fan wheel are a very large length.
  • the damping elements also change at different operating temperatures Damping behavior, which means that the fan at different Operating temperatures has a different running behavior.
  • a fan for generating a cooling air flow is known from US Pat. No. 3,885,888 which the fan wheel is connected to a drive shaft via a driving element.
  • the Driving element of US 3,885,888 has four arms that have an axial contact surface for clamp the fan wheel hub.
  • a dome-shaped centering pin which is formed in a Appropriate opening of the cup-shaped fan hub engages, so that in the case of the mounted fan wheel, this with both an axial and a radial Contact surface on the driving element of the drive shaft.
  • DE 33 39 075 A1 discloses the attachment of a fan impeller to one Motor shaft in which the impeller is fixed to the pin of a driving element and at the same time press the driving element onto the motor shaft.
  • the Driving element of DE 33 39 075 A1 consists of a slotted hub sleeve, the is plugged onto a drive shaft.
  • the driving element has pins which in axial direction of the drive shaft.
  • a central area of the fan impeller is attached to the driver element such that the pin of the Driving element can be inserted through corresponding openings in the central area and at the same time a waistband centrally formed in the middle area over a near-axis Area of the driving element is pushed and press-fit on the Hub sleeve is seated and pressed against the drive shaft.
  • the fan wheel is radial on the Driving element and axially through defined contact surfaces on Driving element and fixed to the fan wheel itself, creating a Wobble of the fan wheel is prevented.
  • the fan wheel is directly connected to a larger mass and can do not become a high-frequency vibration exciter. moreover is achieved by placing the fan wheel directly on the Driving element, without intermediate elements, a short overall length reached.
  • the running behavior remains at different Operating temperatures constant.
  • the driving element has a radial contact surface, on which the fan wheel with a radial contact surface is attached and fixed radially, have fan and Driving element exactly defined positions to each other. Game that arises when, for example, both parts on the Shaft with different tolerances are stored avoided and thus also unrest in the fan movement.
  • the fan wheel By webs between the radial contact surface of the Fan wheel and the driving element, the fan wheel is exact arranged in the center, which ensures smooth running.
  • the webs can be on the radial contact surface of the Fan wheel or on the radial contact surface of the Take away element.
  • the fan wheel on the driving element is also advantageous Axially fixed contact surfaces, which are in the outermost area of the driving element.
  • On the outer area of the Fan wheels kick the largest according to the radiation set Amplitudes of a wobble and thus the largest Powers up.
  • the acting torque is reduced to a minimum.
  • Driving element dimensioned weaker and the Wobble can be reduced. It can also be particularly useful large fan wheels effectively absorb the greater forces become. Due to a weakly dimensioned driving element, in particular by a driving element with three arms Weight and costs can be saved. By a little Weight is the influence on the rotational movement through the Driving element reduced and it becomes less for the drive Energy needed.
  • the driving element with the shaft by friction is connected in a rotationally fixed manner, for example with a clamp seat, Cone seat, shrink fit or by means of clamping elements, wedges, Flanges, etc., will be inexpensive and easy producible rotatable connection reached.
  • a high Alignment accuracy is achieved when that Driving element in its hub, for example 3 webs has, which radially on the driving element when plugged fix the shaft and the driving element separately axially, for example on an abutment shoulder of the shaft, is fixed and non-rotatably connected.
  • the entrainment element is preferably pressed on the shaft, which is particularly inexpensive. moreover can compensate for dimensional differences by the press fit be, for example, more or less deep is pressed.
  • a so-called soft screwing is preferred applied, which prevents tolerance chains.
  • soft screwdriving is achieved, for example, when the Screw head only comes into contact with the plastic and only this biased noteworthy.
  • the fan wheel is made of plastic and the screw head only comes into contact with the fan wheel and not with the Driving element, which is for example made of metal.
  • This Effect is enhanced by using a screw which has a larger screw head in circumference and this only in the outer area with the fan wheel in system comes. This will make a larger area of the plastic biased.
  • the fan wheel and Driving element with small, concentric radial Contact surfaces come into contact because they are simply high Accuracy must be established.
  • the preload in the plastic ensures that the screw does not loosen. This effect can be done by pasting a screw lock can be increased. It is suitable for this for example a spring washer, a serrated lock washer, a Toothed lock washer, a spring lock washer, a snap lock or a locking tooth screw etc.
  • the pins become non-positive Torque transmission is used to secure the Fan function achieved with a short overall length.
  • Screw heads either in recesses in the driving element or are partially or completely submersible in the fan wheel.
  • the driving element made of a material that through the Environment, e.g. structural steel (e.g. ST 37) in a humid environment, is covered with a coating the driving element with a material that the Driving element protects from the environment, the function of the Long-term fan.
  • a coating the driving element with a material that the Driving element protects from the environment, the function of the Long-term fan.
  • This can be done, for example, by Metal coatings, e.g. with zinc, chrome, nickel etc., or also can be achieved by plastic coatings.
  • Metallic Layers can be used, for example, with immersion processes, Brewing process, contact process or galvanic process be applied.
  • the galvanic process is special Advantageous, because it is easy to control on the one hand and other layers with this method in the desired thickness can be applied quickly.
  • the driving element can also be made of weight and Elasticity reasons made of plastic or suitable Materials e.g. corrosion protection is unnecessary make, exist.
  • a shaft 5 is shown on which a Driving element 4 is mounted with a press fit 10.
  • the Hub 22 of the driving element 4 extends across the width of the driving element 4 in the direction of the free shaft end and in the opposite direction. This allows on Driving element 4 occurring torques better absorbed become.
  • the driving element 4 has an axial Projection, which at the same time has a radial contact surface 8 represents.
  • On the radial contact surface 8 is a fan wheel 1 with a radial contact surface 2, on which Fan blades 3 are firmly attached.
  • On the radial Contact surface 2 is preferably three webs 9, with which the fan wheel 1 on the driving element 4 in radial Direction is fixed exactly.
  • the fan wheel 1 is axially defined by annular Contact surfaces 7, 23 on the driving element 4 and on the fan wheel 1 fixed yourself.
  • the contact surfaces 7, 23 are in the outer area of the driving element 4.
  • the driving element 4 and the fan wheel 1 are with a Screw connection 11 non-positively connected. Screws 16 are preferably located in the center of the Contact surfaces 7, 23, which ensures a uniform Surface pressure is reached. Are on the driving element 4 Pin 13 mounted in the middle of the contact surfaces 7, 23. The Pins 13 are through cutouts 14 in the fan wheel 1 recorded a slightly larger scope than that Have pin 13, which prevents a tolerance chain becomes. This means that the fan is clearly centered on the driving element 4 guaranteed by the webs 9. In the Pins are holes 24 in the screws 16 of the fan side are screwed in, expediently a thread 15 is generated when screwing in. The pins 13 are shorter than the fan wheel 1 is wide, so that Screw heads 17 only come into contact with fan wheel 1.
  • a so-called soft screwing case 12 is thus achieved, by only the fan wheel 1, which is made of plastic, a noteworthy preload due to the tightening torque of the Screws 16 experiences.
  • the screws 16 are through Screw locks 21, for example with a toothed lock washer or by using locking toothed screw 16 against loosen secured.
  • Positioning aids 18 are located on the driving element 4 appropriate. These can be in the middle, for example Direction of the contact surfaces 7 and the pin 13 are located.
  • the Fan wheel 1 has a recess in the middle, so that the Positioning aids 18 still controlled from the fan side can be, even if the fan wheel 1 on the Driving element 4 sits.
  • the driving element 4 and the fan wheel 1 after being fixed to each other are, by a positioning device, for example consists of pins which in the positioning aids 18, for example grooves, engages in a defined position be twisted. Then in the defined position then in an automated process positive connection between the driving element 4 and the Fan wheel 1 produces, for example by a screwdriver.
  • the fan wheel 1 faces the driving element Stiffening webs 19 in the region of the pin 13 are interrupted 20, so that when turning the fan wheel 1 on the driving element 4, the pin 13 not to the Stiffening webs 19 get stuck.

Landscapes

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

Claims (12)

  1. Ventilateur comportant un rotor (1) relié solidairement en rotation par un élément d'entraínement (4) à un arbre d'entraínement (5), l'élément d'entraínement (4) ayant au moins une surface d'appui axiale et au moins une surface d'appui radiale (7, 8) contre lesquelles le rotor (1) s'appuie par au moins une surface axiale et une surface radiale (23, 2), et dont le rotor (1) est engagé et bloqué radialement par sa surface d'appui radiale (2) contre la surface d'appui radiale (8) de l'élément d'entraínement (4),
    caractérisé en ce que
    la surface d'appui radiale (2) du rotor de ventilateur (1) ou la surface d'appui radiale (8) de l'élément d'entraínement (4) comporte au moins trois entretoises.
  2. Ventilateur selon la revendication 1,
    caractérisé en ce que
    l'élément d'entraínement (4) comporte au moins trois bras (6) s'étendant dans la direction radiale.
  3. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les surfaces d'appui (7) se trouvent dans la zone radiale extérieure de l'élément d'entraínement (4).
  4. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'entraínement (4) est engagé de force sur l'arbre 1.
  5. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'entraínement (4) est relié au rotor du ventilateur par une liaison à vis (11).
  6. Ventilateur selon la revendication 5,
    caractérisé en ce que
    la liaison à vis (11) coopère avec au moins une matière souple.
  7. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    chaque élément d'entraínement (4) ou rotor de ventilateur (1) comporte des bossages (13) pénétrant dans des cavités (14) de l'autre pièce.
  8. Ventilateur selon la revendication 7,
    caractérisé en ce que
    les bossages (13) créent une liaison par la forme lorsque la liaison vissée (11) est desserrée.
  9. Ventilateur selon la revendication 8,
    caractérisé en ce que
    les perçages (24) se trouvent dans les bossages (13) pour recevoir chacun une vis (16) avec un filetage (15).
  10. Ventilateur selon la revendication 7, ou l'une des revendications précédentes,
    caractérisé en ce que
    le rotor de ventilateur (1) comporte des nervures de rigidification (19) interrompues (20) au niveau des bossages (13).
  11. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé par
    des aides au positionnement (18) intégrées dans l'élément d'entraínement (4) et/ou dans le rotor (1).
  12. Ventilateur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'entraínement (4) est muni d'une couche de produits anti-corrosion.
EP97110004A 1996-08-30 1997-06-19 Ventilateur Expired - Lifetime EP0826884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19635179 1996-08-30
DE19635179A DE19635179A1 (de) 1996-08-30 1996-08-30 Lüfter

Publications (3)

Publication Number Publication Date
EP0826884A2 EP0826884A2 (fr) 1998-03-04
EP0826884A3 EP0826884A3 (fr) 1998-11-04
EP0826884B1 true EP0826884B1 (fr) 2003-09-03

Family

ID=7804173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110004A Expired - Lifetime EP0826884B1 (fr) 1996-08-30 1997-06-19 Ventilateur

Country Status (3)

Country Link
EP (1) EP0826884B1 (fr)
DE (2) DE19635179A1 (fr)
ES (1) ES2206631T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2801647B1 (fr) 1999-11-30 2002-08-02 Valeo Thermique Moteur Sa Dispositif de fixation d'une helice de ventilateur sur un arbre moteur
FR2805573B1 (fr) * 2000-02-25 2002-06-07 Ecia Equip Composants Ind Auto Ventilateur pour vehicule automobile
DE10013609A1 (de) * 2000-03-18 2001-09-20 Bosch Gmbh Robert Vorrichtung zum Befestigen eines Anbauteils mit einer im wesentlichen glatten Antriebswelle
DE10136729A1 (de) * 2001-07-27 2003-02-13 Behr Gmbh & Co Lüfter mit einem Lüfterrad
DE102006038655A1 (de) * 2006-08-18 2008-02-21 Behr Gmbh & Co. Kg Axiallüfter mit elektrischem Antrieb
DE102014226525B4 (de) 2014-12-19 2024-08-29 KSB SE & Co. KGaA Kreiselpumpenlaufrad
PL238568B1 (pl) * 2017-09-09 2021-09-06 Wroblewski Andrzej Przed Techniczno Handlowe Energowent Wirnik wentylatora promieniowego

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885888A (en) * 1973-03-26 1975-05-27 John G Warhol Cooling fan for radiators and the like
DE3339075A1 (de) * 1983-10-28 1985-05-09 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Befestigung eines luefterfluegelrades an einer motorwelle
DE9205097U1 (de) * 1992-04-11 1993-08-05 Robert Bosch Gmbh, 70469 Stuttgart Lüfter mit einem eine topfförmige Nabe aufweisenden Lüfterrad
DE4415915C1 (de) * 1994-05-05 1995-06-22 Siemens Ag Anordnung eines Lüfters an der Läuferwelle einer elektrischen Maschine

Also Published As

Publication number Publication date
EP0826884A2 (fr) 1998-03-04
DE59710679D1 (de) 2003-10-09
EP0826884A3 (fr) 1998-11-04
ES2206631T3 (es) 2004-05-16
DE19635179A1 (de) 1998-03-05

Similar Documents

Publication Publication Date Title
DE60105206T2 (de) Scheibe aus verbundwerkstoff für eine scheibenbremse
DE2106208C3 (fr)
DE10058935B4 (de) Vorrichtung zur Befestigung einer Ventilatorschraube an einer Antriebswelle
EP1880785A2 (fr) Cavité pour un outil en forme de disque
DE102006047006A1 (de) Kraftübertragungseinrichtung
DE10254937A1 (de) Momentübertragungsvorrichtung im Momentenbegrenzer
EP0826884B1 (fr) Ventilateur
DE102011121790B4 (de) Zahnkupplung mit einer Federung, Bremse und Anlage
DE102005047602A1 (de) Handwerkzeugmaschine
EP1797332A1 (fr) Dispositif et procede de fixation d'un rouet sur un arbre
EP3456480B1 (fr) Appareil de travail portatif
DE2315965A1 (de) Kupplungsscheibe
EP1462670B1 (fr) Accouplement de surcharge
EP1106854B1 (fr) Accouplement de surcharge
EP1181455B1 (fr) Dispositif pour fixer une piece sur un arbre d'entrainement sensiblement lisse
DE29511328U1 (de) Vorrichtung zum Abschalten des Antriebs eines Maschinenaggregats
DE102007038971A1 (de) Maschinenelement für eine Welle-Nabe-Verbindung und Herstellungsverfahren für eine Welle-Nabe-Verbindung
DE202005020598U1 (de) Kegelraddifferential
EP0393483A2 (fr) Dispositif de réglage pour une transmission à friction
DE19525744A1 (de) Gedämpfter Freilauf
DE102007020877A1 (de) Radnabe mit Befestigungsvorrichtung für Kraftfahrzeug-Räder
DE19709178B4 (de) Bremsscheibenbefestigung
DE1221499B (de) Befestigung einer Nabe auf einer Welle
DE1915162C3 (de) Elektromagnetisch betätigte Reibungskupplung oder -bremse
WO2020200514A1 (fr) Assemblage par serrage comportant une bague de serrage montée sur un moyeu, en particulier partie d'arbre creux, dotée d'une vis, en particulier une vis de serrage,

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19990504

AKX Designation fees paid

Free format text: DE ES FR GB IT

17Q First examination report despatched

Effective date: 20020422

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59710679

Country of ref document: DE

Date of ref document: 20031009

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031222

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2206631

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080619

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120628

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130620

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 59710679

Country of ref document: DE

Effective date: 20130904

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140619

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140620

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160621

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160810

Year of fee payment: 20

Ref country code: IT

Payment date: 20160621

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59710679

Country of ref document: DE