WO2012171719A1 - Refroidissement à air pour palier à roulement - Google Patents

Refroidissement à air pour palier à roulement Download PDF

Info

Publication number
WO2012171719A1
WO2012171719A1 PCT/EP2012/058372 EP2012058372W WO2012171719A1 WO 2012171719 A1 WO2012171719 A1 WO 2012171719A1 EP 2012058372 W EP2012058372 W EP 2012058372W WO 2012171719 A1 WO2012171719 A1 WO 2012171719A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
ring
air guide
air cooling
cooling arrangement
Prior art date
Application number
PCT/EP2012/058372
Other languages
German (de)
English (en)
Inventor
Kleberson Sierra
Jesiel Costa
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to BR112013032311A priority Critical patent/BR112013032311A2/pt
Publication of WO2012171719A1 publication Critical patent/WO2012171719A1/fr

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7859—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7873—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section
    • F16C33/7876—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section with sealing lips
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/324—Arrangements for lubrication or cooling of the sealing itself
    • 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

Definitions

  • An air-cooling arrangement comprising an air guide ring arranged in the circumferential direction and having punched holes oriented in the axial direction with respect to a rotation axis. Furthermore, the invention relates to a sealing arrangement with such an air cooling arrangement, which can be used to seal a rolling bearing.
  • the fan provides very low cooling capacity for most antifriction bearing applications, especially since its rotational speed can not be changed due to the antifriction bearing, is determined by other requirements and can not be increased to achieve greater cooling. task
  • the object of the invention is therefore to produce a cost-effective and space-saving air cooling arrangement for rolling bearings with improved cooling performance.
  • the object is achieved by an air cooling arrangement of the type mentioned above in that the air guide ring arranged in the circumferential direction, in the axial direction with respect to a rotation axis oriented punch holes, wherein the punch holes are at least partially covered in the axial direction by means of air fins and the air fins each go over into the air guide ring at a punch hole boundary line.
  • the air guide is concentric with the axis of rotation of a bearing, in particular rolling bearings, can be arranged.
  • the air deflectors result from the punching process, which not only allows to punch the air deflector from the air duct, but to bend it in the axial direction without completely disconnecting its connection to the air deflector.
  • the air deflector is materially connected to the air guide ring via a punched hole delimitation line of the punched hole associated with the airfoil.
  • the air conduction vanes at the punched hole delimiting line into the air guide ring which extends at the location of the punching hole, for example substantially radially to the axis of rotation.
  • the punched holes are axially oriented, whereby an axial air shift through the air guide ring is possible.
  • This is supported by the shape of the air guide wing, which may be formed, for example, according to aerodynamic criteria.
  • the air guide forms a fan function, which ensures axial air movement.
  • the air cooling arrangement has an end-toothed one Ring with an axially oriented spur toothing on.
  • the spur toothing also forms the interdental spaces, which are arranged in the circumferential direction and spaced apart from one another.
  • the interdental spaces each form a separate air reservoir and thus also a larger, coolable surface.
  • Both rings are arranged both axially to each other and rotatable relative to each other. This allows the air guide to cool the spur ring axially. Usually, the air guide is moved, that is attached to the rotatable part of a bearing.
  • the frictional heat of the rolling bearing or plain bearing passes through the spur ring, the spur gear being oriented axially in the direction of heat transport.
  • the frictional heat reaches the teeth and tooth valleys of the spur gear teeth.
  • the air guide vanes extend at least partially or completely between the spur toothing and the air guide ring.
  • the spoiler wings can protrude axially close to the tooth crowns or to the interdental spaces. The farther the air guide vanes extend axially out of the air guide ring, the greater is the air movement generated in the space between the teeth.
  • Air cooling arrangement according to one of claims 1 or 2, wherein the teeth of the spur toothing cover the air guide ring axially and radially.
  • the axial and / or the radial cover the air guide partially or completely cover.
  • the Zahn conflictraunn and thus the coolable surface is even larger.
  • a circular movement of the cooling air forms, which is brought axially to the interdental spaces and in the interdental space radially inwardly or outwardly directed and forwarded in the axial opposite direction. During this circular movement heat can be absorbed by the tooth flanks of the adjacent teeth.
  • the air guide vanes advantageously move axially over interdental spaces of the face toothing.
  • both the teeth partially or entirely made of metal or an elastic material.
  • the air guide ring and the baffles can be easily integrated into a sealing arrangement of a roller bearing independent of whether it must be integrated into a sealing ring, the elastomer or a slinger to achieve the effect of the invention.
  • a seal arrangement in particular Kassettensich- direction, with an air cooling arrangement produced, the end-toothed ring forms a sealing ring of the seal assembly and the end-toothed ring forms a slinger of the seal assembly or.
  • the front toothing may be formed of an elastomer and opposite to a made of metal spoiler.
  • rolling bearing has at least one sealing arrangement according to the invention, but may in principle also have several, wherein the Laufleitring or the front-toothed ring may have other functions held, such as the distance between prestressed components or the installation support.
  • the Laufleitring or the front-toothed ring may have other functions held, such as the distance between prestressed components or the installation support.
  • FIG. 1 shows a front-toothed ring of the air cooling arrangement from FIG. 2,
  • FIG. 4 shows a front-toothed ring of the air cooling arrangement of FIG. 5,
  • FIG. 5 shows an air cooling arrangement of the ball bearing from FIG. 6, FIG. 6 ball bearings for axle applications with forced air cooling in rotary operation
  • FIG. 8 shows an air cooling arrangement of the ball bearing from FIG. 9a
  • FIG. 8 shows an end-toothed ring of the air cooling arrangement from FIG. 8, FIG.
  • FIG. 10 is a front-toothed ring of the air cooling arrangement of FIG. 1 1,
  • FIG. 12b shows a sealing arrangement of the wheel bearing from FIG. 12a
  • FIG. 14 shows a second air guide ring
  • FIG. 15 shows a third air guide ring.
  • Fig. 1 to 3 show a ball bearing for a shaft with air cooling.
  • the end-toothed ring 12 has a spur toothing formed by an elastomer with axially aligned teeth 10 and interdental spaces 1 1.
  • the spur toothing is thus made in one piece with both the axial sealing lip 14, and with the radial sealing lip 13.
  • the sealing lips 13, 14 both lie against the air guide ring 15 designed as a spin plate, which is arranged axially to the spur toothing and permits an axial exchange of air through the punched holes 16.
  • the spur toothing is arranged radially and axially to the air guide ring 15 and is thus space-saving, wherein also radially outwardly particularly much surface is provided for cooling.
  • the air guide ring 15 is radially surrounded by the spur toothing, whereby the seal assembly shown as a cassette seal is easy to handle and can be pressed in as a whole.
  • FIGS. 7 to 9 show a third exemplary embodiment of a roller bearing, which has a clearance radially above the air cooling arrangement in order to additionally support an air movement, mainly in the axial direction.
  • both the spur toothing and the sealing lips 73, 74, 78 are formed on the elastomer of the end-toothed ring 72.
  • the teeth 70 are axially opposite the punch holes 75 of the air guide ring 75.
  • 10 to 12 show a wheel bearing with forced air cooling, in which the air cooling arrangement is designed with a cassette seal.
  • the designed as a slinger Heilleitring 1 15 is mounted on the inner ring 22 of the wheel hub by means of press fit and moves axially over the spur toothing 1 10, 1 1 1 of the end-toothed ring 1 12th
  • the air flow through the punched holes 1 16 flows in an axially opposite direction, as the air flow flowing past the radially outside of the air guide ring 15 1. It is the countercurrent to the air flow through the punch holes 1 16.
  • the formation of the associated air vanes and the direction of rotation determines the direction of both air streams.
  • FIGS. 13 to 15 show air guide rings 123, 135, 145 whose air guide vanes 124, 134, 144 have been formed in accordance with the aerodynamic requirements during the stamping process. It can be seen that the air guide vanes 124, 134, 144 are formed from the material of the respective air guide ring 123, 135, 145. They go on the punching hole boundary line 127 in the air guide 123 over.
  • the invention relates to air cooling arrangement with an arranged in the circumferential direction, in the axial direction with respect to a rotation axis oriented punched holes having air guide ring. Furthermore, the invention relates to a sealing arrangement with such an air cooling arrangement, which can be used to seal a rolling bearing. It is indicated how the cooling performance of an air guide ring can be accomplished by means of an increase in surface area of an end-toothed ring. Thanks to the rotatable relative to the front ring ring air guide air circulation is achieved, which is stimulated by the air vanes by these are alternately moved over the spur toothing and increase and decrease the air pressure in the interdental spaces alternately. This creates a stream of air that sweeps and cools more effectively over the entire surface, including the crowns, tooth flanks and tooth valleys.
  • Tooth 1 Interdental space between spur ring 13 Radial sealing lip Axial sealing lip 15 Air guide ring
  • Tooth 71 Interdental space between spur rings 73 Inner, radial sealing lip Outer, radial sealing lip 75 Air guide ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne, en résumé, un système de refroidissement à air dotée d'une bague de guidage de l'air disposée dans le sens périphérique, présentant des trous poinçonnés orientés axialement par rapport à un axe de rotation. En outre, l'invention concerne un ensemble d'étanchéité munie d'un tel système de refroidissement à air, utilisable pour étanchéifier un palier à roulement. L'invention indique comment une puissance de refroidissement d'une bague de guidage de l'air peut être réalisée au moyen d'un agrandissement de surface d'une bague (12) dentée sur sa face frontale. Grâce à la bague de guidage de l'air, rotative par rapport à la bague (12) dentée sur sa face frontale, on obtient une circulation de l'air qui est stimulée par les ailettes de guidage de l'air en ce que celles-ci sont déplacées en alternance sur la denture frontale (10, 11) et augmentent et abaissent en alternance la pression de l'air dans les espaces intermédiaires entre les dents. De ce fait, un flux d'air s'instaure, qui s'étend sur toute la surface, y compris les couronnes dentées, les flancs des dents et les creux entre les dents et qui refroidit plus efficacement.
PCT/EP2012/058372 2011-06-17 2012-05-07 Refroidissement à air pour palier à roulement WO2012171719A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112013032311A BR112013032311A2 (pt) 2011-06-17 2012-05-07 disposição de resfriamento a ar com um anel de guia do ar; disposição de resfriamento a ar; disposição de vedação; mancal de rolamento

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011077732A DE102011077732A1 (de) 2011-06-17 2011-06-17 Lüftkühlung für Wälzlager
DE102011077732.6 2011-06-17

Publications (1)

Publication Number Publication Date
WO2012171719A1 true WO2012171719A1 (fr) 2012-12-20

Family

ID=45471236

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/058372 WO2012171719A1 (fr) 2011-06-17 2012-05-07 Refroidissement à air pour palier à roulement

Country Status (3)

Country Link
BR (1) BR112013032311A2 (fr)
DE (1) DE102011077732A1 (fr)
WO (1) WO2012171719A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220128094A1 (en) * 2020-10-23 2022-04-28 Subaru Corporation Sealing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017106196B3 (de) 2017-03-22 2018-09-13 Schaeffler Technologies AG & Co. KG Wälzlager und Fahrzeug mit einer Antriebswelle mit dem Wälzlager
DE102020100511A1 (de) 2020-01-13 2021-07-15 Schaeffler Technologies AG & Co. KG Radlagereinheit für ein Kraftfahrzeug

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212715A (en) * 1968-02-14 1970-11-18 Stefa Industri Ab Shaft sealing ring
US3706483A (en) * 1971-10-06 1972-12-19 Trw Inc Heat transfer bearing mounting
GB2123498A (en) 1982-05-28 1984-02-01 Skf Svenska Kullagerfab Ab Sealing bearing cavities
DE4111994A1 (de) * 1991-04-12 1992-10-15 Herter Tamara Kugellager
DE4133296A1 (de) * 1991-04-12 1993-01-28 Herter Tamara Kugellager
EP1239173A2 (fr) * 2001-03-05 2002-09-11 Minebea Co., Ltd. Moyen d'étanchéité pour un palier à contact de roulement
DE10259400A1 (de) * 2002-12-19 2004-07-01 Fag Kugelfischer Ag Dichtungsanordnung
WO2009142574A1 (fr) * 2008-05-23 2009-11-26 Scania Cv Ab Dispositif de suspension de roue
EP2182256A1 (fr) * 2008-10-30 2010-05-05 Lenze Drives GmbH Joint pour arbres sur un passage d'arbre

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212715A (en) * 1968-02-14 1970-11-18 Stefa Industri Ab Shaft sealing ring
US3706483A (en) * 1971-10-06 1972-12-19 Trw Inc Heat transfer bearing mounting
GB2123498A (en) 1982-05-28 1984-02-01 Skf Svenska Kullagerfab Ab Sealing bearing cavities
DE4111994A1 (de) * 1991-04-12 1992-10-15 Herter Tamara Kugellager
DE4133296A1 (de) * 1991-04-12 1993-01-28 Herter Tamara Kugellager
EP1239173A2 (fr) * 2001-03-05 2002-09-11 Minebea Co., Ltd. Moyen d'étanchéité pour un palier à contact de roulement
DE10259400A1 (de) * 2002-12-19 2004-07-01 Fag Kugelfischer Ag Dichtungsanordnung
WO2009142574A1 (fr) * 2008-05-23 2009-11-26 Scania Cv Ab Dispositif de suspension de roue
EP2182256A1 (fr) * 2008-10-30 2010-05-05 Lenze Drives GmbH Joint pour arbres sur un passage d'arbre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220128094A1 (en) * 2020-10-23 2022-04-28 Subaru Corporation Sealing device
US11530721B2 (en) * 2020-10-23 2022-12-20 Subaru Corporation Sealing device

Also Published As

Publication number Publication date
BR112013032311A2 (pt) 2016-12-20
DE102011077732A1 (de) 2012-02-02

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