FR2463300A1 - Mounting overhung fan impeller on shaft - uses elastic centre bush fixed to centre bore of impeller and held on by spring clip - Google Patents

Mounting overhung fan impeller on shaft - uses elastic centre bush fixed to centre bore of impeller and held on by spring clip Download PDF

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Publication number
FR2463300A1
FR2463300A1 FR8016142A FR8016142A FR2463300A1 FR 2463300 A1 FR2463300 A1 FR 2463300A1 FR 8016142 A FR8016142 A FR 8016142A FR 8016142 A FR8016142 A FR 8016142A FR 2463300 A1 FR2463300 A1 FR 2463300A1
Authority
FR
France
Prior art keywords
fan
impeller
shaft
shaft end
held
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
FR8016142A
Other languages
French (fr)
Other versions
FR2463300B3 (en
Inventor
Peter Bruder
Hartmut Nitzsche
Klaus Metzger
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 FR2463300A1 publication Critical patent/FR2463300A1/en
Application granted granted Critical
Publication of FR2463300B3 publication Critical patent/FR2463300B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/46—Fans, e.g. ventilators

Landscapes

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

Abstract

One end (14) of the fan shaft (16) is supported by a bearing (18) located in a bearing housing (12). The impeller (24) has an elastic bush (26) fixed into its centre bore. The bush (26) is extended (27) to butt against the external face of the bearing inner sleeve (20). The impeller is held in place by a spring clip (36) acting against a disc (38). The impeller is driven by a drive pin (28) located in the shaft extension (14) and which locates in slots (32) in the elastic bush extension (27). This arranangement allows simple assembly of the impeller into the shaft.

Description

D'invention part d'un ventilateur avec un bout d'arbre monté dans le bottier d'un ensemble d'entrainement et qui fait saillie hors de ce bottier en étant muni d'une roue de ventilateur, ventilateur dans lequel la roue de ventilateur est solidaire d'une douille montée sur le bout d'arbre , cette douille et l'élément de palier étant appliqués au moyen d'un élément élastique contreun épaulement orienté dans la direction d'extension du bout d'arbre. Invention starts with a fan with a shaft end mounted in the housing of a drive assembly and which projects out of this housing by being provided with a fan wheel, fan in which the fan wheel is integral with a sleeve mounted on the shaft end, this sleeve and the bearing element being applied by means of an elastic element against a shoulder oriented in the direction of extension of the shaft end.

On connaît déjà un ventilateur dans lequel la bague interne du palier - billes est disposée entre des épaulements du bout d'arbre et est appliquée contre l'un de ces épaulements au moyen d'un disque. En outre, la roue de ventilateur est pressée par un élément élastique supplémentaire contre un autre épaulement du bout d'arbre. There is already known a fan in which the internal ring of the ball bearing is disposed between the shoulders of the shaft end and is applied against one of these shoulders by means of a disc. In addition, the fan wheel is pressed by an additional elastic element against another shoulder of the shaft end.

L'invention a-pour but de simplifier ce ventilateur connu et concerne à cet effet un ventilateur caractérisé en ce que la douille prend appui par l'intermédiaire d'un prolongement axial sur le côté de l'élément de palier opposé à l'épaulement sur lequel s'applique cet élément de palier. The object of the invention is to simplify this known fan and for this purpose relates to a fan characterized in that the sleeve is supported by means of an axial extension on the side of the bearing element opposite the shoulder to which this bearing element applies.

La disposition conforme à l'invention définie ci-dessus présente par rapport aux solutions connues l'avantage que le disque et l'un des épaulements de butée du bout d'arbre peuvent & re supprimés. En outre la disposition conforme à l'invention simplifie le montage du ventilateur
D'autres caractéristiques de l'invention permettent d'envisager d'autres formes avantageuses et des améliorations du ventilateur défini ci-dessus.The arrangement according to the invention defined above has the advantage over known solutions that the disc and one of the abutment shoulders of the shaft end can be removed. In addition, the arrangement according to the invention simplifies the mounting of the fan.
Other characteristics of the invention make it possible to envisage other advantageous forms and improvements of the fan defined above.

L'invention va autre décrite plus en détail en se référant à des exemples de réalisation représentés sur les dessins ci-joints dans lesquels
- la figure 1 représente en coupe une première disposition pour fixer une roue de ventilateur sur un arbre,
- la figure 2 montre également en coupe une autre disposition pour fixer une roue de ventilateur sur un arbre.The invention will further described in more detail with reference to embodiments shown in the accompanying drawings in which
FIG. 1 represents in section a first arrangement for fixing a fan wheel on a shaft,
- Figure 2 also shows in section another arrangement for fixing a fan wheel on a shaft.

Conformément à la figure 1wle ventilateur 10 comporte un bottier 12 hors duquel fait saillie le bout 14 d'un arbre 16. L'arbre 16 est monté dans le bottier avec un palier à billes 18. La bague interne 20 du palier à billes 18 est appliquée sur son côté opposé au bout d'arbre 14 sur une bague de Seeger 22 constituant un épaulement de butée Sur le bout d'arbre 14 de l'arbre 16 faisant saillie hors du boiter 12 est disposée une roue de ventilateur 24. Cette roue de ventilateur 24 est solidaire d'une douille 26 susceptible d'être enfilée sur le bout d'arbre 14. Le bout d'arbre 14 comporte un perçage transversal dans lequel une broche d'entratnement 28 est enfoncée à la presse.La broche d'entralnement 28 est plus longue que le diamètre du bout d'arbre 14 si bien que ses deux extrémités 30 constituent des saillies radiales du bout d'arbre 14, ces saillies servant à lentratnement en rotation de la douille'26 ou de la roue de ventilateur 24. A cet effet un prolongement 27 de la douille 26 comporte deux fentes 32 opposées s'ouvrant sur leur bord en direction du boîtier 12, ia largeur de ces fentes étant adaptée au diamètre de la broche d'entratnement 28. L'extrémité extérieure du bout d'arbre 14 fait saillie comme le montre la figure 1 hors de la douille 26.Cette extrémité extérieure est munie d'une rainure annulaire 34 dans laquelle est susceptible d'être placé ce que l'on appelle un disque de Benzing. Sur l'extrémité extérieur du bout d'arbre 14 est encore monté un disque 38, contre la surface externe duquel s'applique le disque de Benzing lorsqu'il est enfoncé dans la rainure annulaire 34. L'épaisseur du disque 38 est déterminée de façon telle que le disque de Benzing constitué d'un matériau élastique peut être monté sous contrainte.Le disque de Benzine 36 prend ainsi appui sur l'dpaulement externe 40 de la rainure annulaire 34 et presse par son bord externe 42 le disque 38 et presse ainsi ensemble la douille 26 et la roue de ventilateur 24 contre la bague interne 20 du palier à billes 18, ce palier à billes venant de son côté en butée contre l'anneau de Seeger 22. In accordance with FIG. 1, the fan 10 comprises a casing 12 outside of which protrudes the end 14 of a shaft 16. The shaft 16 is mounted in the casing with a ball bearing 18. The internal ring 20 of the ball bearing 18 is applied on its side opposite the end of the shaft 14 on a Seeger ring 22 constituting an abutment shoulder On the end of the shaft 14 of the shaft 16 projecting from the box 12 is arranged a fan wheel 24. This wheel fan 24 is integral with a sleeve 26 capable of being threaded on the shaft end 14. The shaft end 14 has a transverse bore in which a drive spindle 28 is pressed in the press. entralmentation 28 is longer than the diameter of the shaft end 14 so that its two ends 30 constitute radial projections of the shaft end 14, these projections serving for the rotational drive of the bushing 26 or of the wheel fan 24. For this purpose an extension 27 of the socket 26 com carries two opposite slots 32 opening on their edge towards the housing 12, the width of these slots being adapted to the diameter of the drive spindle 28. The outer end of the shaft end 14 projects as shown in the Figure 1 out of the sleeve 26.This outer end is provided with an annular groove 34 in which is likely to be placed what is called a Benzing disc. A disc 38 is still mounted on the outer end of the shaft end 14, against the external surface of which the Benzing disc applies when it is pressed into the annular groove 34. The thickness of the disc 38 is determined by in such a way that the Benzing disc made of an elastic material can be mounted under stress. The Benzine disc 36 thus bears on the external shoulder 40 of the annular groove 34 and presses by its external edge 42 the disc 38 and presses thus together the sleeve 26 and the fan wheel 24 against the internal ring 20 of the ball bearing 18, this ball bearing coming into its abutment against the Seeger ring 22.

Dans le cas de l'exemple de réalisation représente sur la figure 2,pour toutes les parties représentées, à l'exception de la douille 26de la forme de réalisation précedemment décrite, les chiffres de références utilisés pour la figure 1 sont également utilisés dans le cas de l'exemple de réalisation selon la figure 2. A la différence de l'exemple de réalisation précédemment décrit, dans le cas de la disposition conforme à la figure 2, la douille 126 est beaucoup plus courte. Elle comporte toutefois également des fentes 132 dont les parois coopèrent avec les extrémités 30 de la broche d'entratnement 28 dans le sens d'un entratnement en rotation. Afin que la douille 126 et la bague interne 20 du palier à billes 18 puissent prendre appui l'une sur l'autre, une douille-entretoise 100 est disposée entre ces deux éléments sous forme de-prolongement, cette douille-entretoise présentant la longueur requise. In the case of the exemplary embodiment shown in FIG. 2, for all the parts shown, with the exception of the socket 26 of the embodiment described above, the reference numbers used for FIG. 1 are also used in the case of the embodiment according to Figure 2. Unlike the embodiment described above, in the case of the arrangement according to Figure 2, the sleeve 126 is much shorter. However, it also includes slots 132 whose walls cooperate with the ends 30 of the drive spindle 28 in the direction of a rotational drive. So that the sleeve 126 and the inner ring 20 of the ball bearing 18 can bear one on the other, a spacer sleeve 100 is disposed between these two elements in the form of an extension, this spacer sleeve having the length required.

Claims (3)

REVENDICAtIONS 1.- Ventilateur avec un bout d'arbre monté dans le bottier d'un ensemble d'entrainement et qui fait saillie hors de ce boîtier en étant muni d'une roue de ventilateur, ventilateur dans lequel la roue de ventilateur est solidaire d'une douille montée sur le bout d'arbre, cette douille et l'élément de palier étant appliqués au moyen d'un élément élastique contre un épaulement orienté dans la direction d'extension du bout d'arbre, ventilateur caractérisé en ce que la douille (26 ou bien 126) prend appui par l'intermédiaire d'un prolongement axial (27 ou bien 100) sur le côté de l'élément de palier (18) opposé à l'épaulement (22) sur lequel s'applique cet élément de palier (18). 1.- Fan with a shaft end mounted in the housing of a drive assembly and which projects out of this housing by being provided with a fan wheel, fan in which the fan wheel is integral with a bush mounted on the shaft end, this bush and the bearing element being applied by means of an elastic element against a shoulder oriented in the direction of extension of the shaft end, fan characterized in that the bush (26 or 126) is supported by an axial extension (27 or 100) on the side of the bearing element (18) opposite the shoulder (22) on which this element is applied bearing (18). 2.- Ventilateur selon la revendication 1, caractérisé en ce que le prolongement est constitué par une douille-entretoise (100) distincte. 2. A fan according to claim 1, characterized in that the extension consists of a separate bushing (100). 3.- Ventilateur selon l'une quelconque des revendication 1 et 2, dans lequel le bout d'arbre comporte au moins un organe d'entraînement radial coopérant avec la douille, ventilateur caractérisé en ce que la douille (26 ou bien 126) comporte une fente (32) pour recevoir l'organe d'entraînement (30), cette fente étant ouverte sur son bord vers l'élément de palier (18).  3. A fan according to any one of claims 1 and 2, wherein the shaft end comprises at least one radial drive member cooperating with the socket, fan characterized in that the socket (26 or 126) comprises a slot (32) for receiving the drive member (30), this slot being open on its edge towards the bearing element (18).
FR8016142A 1979-08-11 1980-07-22 Mounting overhung fan impeller on shaft - uses elastic centre bush fixed to centre bore of impeller and held on by spring clip Granted FR2463300A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19797923037U DE7923037U1 (en) 1979-08-11 1979-08-11 FAN WITH A SHAFTS STORED IN THE HOUSING OF A DRIVE UNIT, PROVIDED WITH A FAN WHEEL

Publications (2)

Publication Number Publication Date
FR2463300A1 true FR2463300A1 (en) 1981-02-20
FR2463300B3 FR2463300B3 (en) 1983-05-06

Family

ID=6706539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8016142A Granted FR2463300A1 (en) 1979-08-11 1980-07-22 Mounting overhung fan impeller on shaft - uses elastic centre bush fixed to centre bore of impeller and held on by spring clip

Country Status (3)

Country Link
DE (1) DE7923037U1 (en)
FR (1) FR2463300A1 (en)
IT (1) IT1132370B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008193A1 (en) * 1988-02-25 1989-09-08 Ksb Aktiengesellschaft Shaft
FR2756021A1 (en) * 1996-11-19 1998-05-22 Valeo Systemes Dessuyage Automobile engine fan with simplified blade mounting
FR2801647A1 (en) * 1999-11-30 2001-06-01 Valeo Thermique Moteur Sa DEVICE FOR FIXING A FAN PROPELLER ON A MOTOR SHAFT
EP1808604A1 (en) * 2006-01-13 2007-07-18 Chung-Yin Cheng Electric fan
CN100439719C (en) * 2005-06-08 2008-12-03 郑宗殷 Dual-vane electric fan with balancing main shaft
EP2243962A3 (en) * 2009-04-09 2013-05-15 Robert Bosch GmbH Engine cooling fan assembly
CN104265676A (en) * 2014-09-15 2015-01-07 成都嘉陵华西光学精密机械有限公司 Fan shaft member front fully-sealed dustproof structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008193A1 (en) * 1988-02-25 1989-09-08 Ksb Aktiengesellschaft Shaft
FR2756021A1 (en) * 1996-11-19 1998-05-22 Valeo Systemes Dessuyage Automobile engine fan with simplified blade mounting
FR2801647A1 (en) * 1999-11-30 2001-06-01 Valeo Thermique Moteur Sa DEVICE FOR FIXING A FAN PROPELLER ON A MOTOR SHAFT
US6527516B2 (en) 1999-11-30 2003-03-04 Valeo Thermique Moteur Device for fixing a fan-blade assembly onto a motor shaft
CN100439719C (en) * 2005-06-08 2008-12-03 郑宗殷 Dual-vane electric fan with balancing main shaft
EP1808604A1 (en) * 2006-01-13 2007-07-18 Chung-Yin Cheng Electric fan
EP2243962A3 (en) * 2009-04-09 2013-05-15 Robert Bosch GmbH Engine cooling fan assembly
CN104265676A (en) * 2014-09-15 2015-01-07 成都嘉陵华西光学精密机械有限公司 Fan shaft member front fully-sealed dustproof structure

Also Published As

Publication number Publication date
FR2463300B3 (en) 1983-05-06
IT8024078A0 (en) 1980-08-08
IT1132370B (en) 1986-07-02
DE7923037U1 (en) 1981-02-12

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