WO2009016197A2 - Fixation d'un palier - Google Patents

Fixation d'un palier Download PDF

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Publication number
WO2009016197A2
WO2009016197A2 PCT/EP2008/059981 EP2008059981W WO2009016197A2 WO 2009016197 A2 WO2009016197 A2 WO 2009016197A2 EP 2008059981 W EP2008059981 W EP 2008059981W WO 2009016197 A2 WO2009016197 A2 WO 2009016197A2
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
shaft
inner ring
ring
fixation
Prior art date
Application number
PCT/EP2008/059981
Other languages
German (de)
English (en)
Other versions
WO2009016197A3 (fr
Inventor
Jörg Müller
Thomas Then
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2009016197A2 publication Critical patent/WO2009016197A2/fr
Publication of WO2009016197A3 publication Critical patent/WO2009016197A3/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
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/10—Force connections, e.g. clamping
    • F16C2226/16—Force connections, e.g. clamping by wedge action, e.g. by tapered or conical parts
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • the invention relates to a device for fixing a bearing on a shaft, in particular on a shaft of an electric motor with a brake acting in the axial direction.
  • bearing in the art refers to the functional connection of machine parts. Bearings can transfer or direct forces and / or movements. Bearing for rotating parts, as e.g. occur in rotary electric motors, can be distinguished by the way in which direction the force acting on the rotating part is transmitted to the shaft. It must be recorded both the weight forces in the normal case (horizontal installation), the radial forces, and the axial forces. In a radial bearing, the force absorbed by the bearing acts perpendicular to the axis of rotation. Thrust bearings absorb forces in the direction of the shaft axis, thus axial forces.
  • the non-locating bearing is suitable only for a force perpendicular to the bearing points and thus perpendicular to the axis of rotation, thus allowing a certain longitudinal displaceability.
  • the fixed bearing also absorbs forces in the axial direction, so that the component, for example a brake disk of an electric motor, can not move laterally out of the bearings in an uncontrolled manner.
  • circlips are used in a variety of forms for the axial fixation of the bearing.
  • a certain play of this securing ring in a groove provided in the shaft is indispensable for the assembly, so that here too a slight displacement of the bearing can occur under axial impact load.
  • the object of the invention is to provide a suitable device for fixing a bearing, which ensures a fixed position of the bearing even in the event of an axial shock load, in particular during a braking operation.
  • a device for fixing a bearing on a shaft in particular a shaft of an electric motor with acting in the axial direction brake, wherein the inner ring of the bearing is held by at least two interacting ring elements and thereby forms a fixed bearing.
  • the force flow is now deflected from the axial direction in a radial direction.
  • the two ring elements facing each other have conical lateral surfaces, which deflects in the event of an axial force, for example due to a shock load in a braking process by the inclined surface of the cone of the outer ring of the bearing fixation in a force component perpendicular to the axis of rotation of the electric motor becomes.
  • This in turn ensures an increased contact pressure of the nenrings the bearing fixation on the shaft and thus leads to a sufficient axial bearing mounting.
  • This increased friction force counteracts the axially acting force and thus ensures that the bearing does not move axially.
  • This axially acting frictional component is in proportion to the axial force, i.
  • angles of inclination of the two ring elements i. the outer ring of the bearing fixing and the inner ring of the bearing fixation of the same design. This ensures production as well as power diversion in a simple manner.
  • FIG. 1 shows a shaft 1 with an axially stepped course, which is formed by different radii R 1 to R 4 of the shaft 1.
  • the transition between the radius R3 and radius R4 is formed by a stop 2, on which the inner ring 8 of a bearing 3 is pressed.
  • the bearing 3 also has an outer ring 7 which is positioned in a bearing shield, not shown.
  • the inner ring 8 of the bearing 3 is slightly above the transition between radius R2 and radius R3 (about 10 to 20% of the axial extent of the inner ring 8 of the bearing 3), so that the assembly of the device for fixing of the bearing 3 is facilitated.
  • the bearing 3 is now fixed by the fact that the outer ring 4 of the bearing fixation and the inner ring 5 of the bearing fixation cooperate.
  • the inner ring 5 is shrunk onto the shaft section with radius R2, wherein now under axial load, for example an axial impact load by a braking operation, the force component F a due to the cooperating conical lateral surfaces 6 in a radial force component F r is deflected perpendicular to the axis of rotation.
  • the additional force component F r acts. This now occurs between the outer ring 4 and the inner ring. 5 the bearing fixation a self-locking, which thus completely prevents an axial displacement of the inner ring 8 of the bearing 3.
  • a shaft section with radius Rl is advantageously still provided, which in turn is smaller than the shaft section R2, so that the AufschrumpfVorgang the inner ring 5 is simplified.
  • angles of the conical lateral surfaces are the same, in particular as an angle of inclination ⁇ between a parallel to the axis of rotation 9, which is denoted by 10 and an extension of the lateral surfaces 6 representing straight 11th
  • the two conical lateral surfaces 6 need not necessarily have the same angle ⁇ formed, they can also be designed differently, it is to be decided that occurs under axial load of the outer ring 4 via the inner ring 5, a self-locking.
  • the designed as ring elements inner ring 5 and outer ring 4 of the bearing fixation are thus cone-shaped, wherein the cone has the same or as stated above different inclination angle ⁇ .
  • These ring elements are preferably made of high-strength material in order to absorb the, in particular axial, forces and, due to the self-locking, to provide a corresponding opposing force without their own deformation, which would lead to an unintentional axial displacement of the inner ring 8 of the bearing 3.
  • Such bearing fixations are compared to conventional bearing fixings to use where even with axial shock loads it depends on a positionally accurate, positionally accurate fixation of the bearing 3.
  • These are in particular electric motors, which are provided with brakes, in particular disc brakes on one end face.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Braking Arrangements (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne un dispositif permettant de fixer un palier (3) sur un arbre (1), en particulier un arbre (1) d'un moteur électrique équipé d'un frein agissant dans le sens axial, la bague intérieure (8) du palier (3) étant maintenue par au moins deux éléments de bague (4, 5) en interaction et formant ainsi un palier fixe.
PCT/EP2008/059981 2007-08-01 2008-07-30 Fixation d'un palier WO2009016197A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007036034.9 2007-08-01
DE102007036034A DE102007036034A1 (de) 2007-08-01 2007-08-01 Fixierung eines Lagers

Publications (2)

Publication Number Publication Date
WO2009016197A2 true WO2009016197A2 (fr) 2009-02-05
WO2009016197A3 WO2009016197A3 (fr) 2009-07-23

Family

ID=40202983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059981 WO2009016197A2 (fr) 2007-08-01 2008-07-30 Fixation d'un palier

Country Status (2)

Country Link
DE (1) DE102007036034A1 (fr)
WO (1) WO2009016197A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013216135B4 (de) * 2013-08-14 2022-01-13 Robert Bosch Gmbh Getriebeanordnung mit der Befestigungshülse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813409A1 (de) * 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Einrichtung zur Aufrechterhaltung des axialen Lagerspiels bei Waelzlagereinbauten
JP2000283170A (ja) * 1999-03-31 2000-10-13 Nisshin Steel Co Ltd 転がり軸受けにおける内輪の固定方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132442A1 (de) * 1981-08-17 1983-02-24 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Anordnung zur befestigung von maschinenteilen, insbesondere von spielfrei angestellten oder vorgespannten waelzlagern
DE3223683C2 (de) * 1982-06-25 1987-01-15 Stüwe GmbH & Co KG, 4320 Hattingen Reibschlüssige Wellen/Flansch-Verbindung
DE8718005U1 (de) * 1987-02-17 1992-08-06 MAN Gutehoffnungshütte AG, 46145 Oberhausen Vorrichtung zum reibschlüssigen Verbinden von Bauteilen mit Wellen oder Achsen
DE8913649U1 (de) * 1989-11-18 1990-01-04 China Bearing Co. Ltd., Taipeh/T`ai-pei Selbsteinstellende Mutternabstützung einer Welle gegen ein Lager
DE19845671C1 (de) * 1998-10-05 2000-04-13 Fag Automobiltechnik Ag Vorrichtung zum axialen Fixieren eines Maschinenelements
DE20113007U1 (de) * 2001-08-04 2001-11-29 AB SKF, Göteborg Lageranordnung
DE102005032529A1 (de) * 2005-07-12 2007-01-25 Siemens Ag Festkörperaktor-Antriebsvorrichtung mit einer Welle und einem Lager zum Lagern der Welle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813409A1 (de) * 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Einrichtung zur Aufrechterhaltung des axialen Lagerspiels bei Waelzlagereinbauten
JP2000283170A (ja) * 1999-03-31 2000-10-13 Nisshin Steel Co Ltd 転がり軸受けにおける内輪の固定方法

Also Published As

Publication number Publication date
DE102007036034A1 (de) 2009-02-19
WO2009016197A3 (fr) 2009-07-23

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