WO2003056197A1 - Flasque pour moteur electrique, et moteur electrique correspondant - Google Patents

Flasque pour moteur electrique, et moteur electrique correspondant Download PDF

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Publication number
WO2003056197A1
WO2003056197A1 PCT/DE2002/004668 DE0204668W WO03056197A1 WO 2003056197 A1 WO2003056197 A1 WO 2003056197A1 DE 0204668 W DE0204668 W DE 0204668W WO 03056197 A1 WO03056197 A1 WO 03056197A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
end shield
edge
collar
outer ring
Prior art date
Application number
PCT/DE2002/004668
Other languages
German (de)
English (en)
Inventor
Armin Elser
Thomas Bilsing
Karl Auer
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
Priority to EP02798285A priority Critical patent/EP1458985A1/fr
Publication of WO2003056197A1 publication Critical patent/WO2003056197A1/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
    • F16C35/067—Fixing them in a housing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30—Angles, e.g. inclinations
    • 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 bearing plate and an electrical machine with such a bearing plate according to the type of the independent claims.
  • a method is known of how a ball bearing can be fixed in a bearing plate by displacing bearing plate material in the bearing holder of the bearing plate.
  • the disadvantage of this method is that when the bearing hub is covered by the displacing tool, particularly high forces are required on the one hand to displace material from the end shield so that an undercut is formed and on the other hand a material cross section in the end shield is weakened. If, on the other hand, you only choose a low degree of coverage, you only achieve a small cross-section between the covering collar and the rest of the end shield.
  • Bearing plate material is required for the undercut, the remaining cross-section between the bearing seat and the remaining bearing plate is becoming ever smaller on the one hand, and on the other hand the cylindrical-shaped shear cross-section - this is the conceptual extension of the cylindrical bearing seat by the undercut - is becoming smaller.
  • Another disadvantage is the fact that by shear editing through. the tool the material connection in the transition from the bearing plate to the bearing holder is destroyed, so that the strength of the bearing plate in the area of the material displacement is weakened by a notch generated.
  • the bearing plate according to the invention with the features of the main claim has the advantage that the edge of the bearing receptacle is formed or bent into a collar over the outer ring of the rolling bearing without shearing.
  • the material connection of the end shield is not weakened or injured as a result, the strength is at least maintained and can even be increased by work hardening.
  • the measures listed in the subclaims allow advantageous refinements of the end shield according to the main claim.
  • the collar of the bearing receptacle protrudes in the radial direction between 2.0 and 3.2 mm over the outer ring after the reshaping.
  • favorable pull-out forces have been determined in this range of values, with a comparatively reasonable amount of force during the forming and, on the other hand, favorable machining times.
  • An optimal range lies between the values between 2.4 and 2.9 mm.
  • the collar has an axial height between 0.8 and 2.0 mm, a favorable relationship between pull-out force and machining effort has also been found here.
  • the optimal range is between 1.1 and 1.5 mm. This area also has the advantage that the requirements to a particularly compact design - that is, small axial extension of the bearing holder with sufficient holding force in the bearing holder.
  • the electrical machine according to the invention with the features of the independent claim has the advantage that the size of the electrical machine can be reduced by a few millimeters by using at least one bearing plate and a bearing accommodated in the bearing plate.
  • FIG. 1 shows a section through the hub of the end shield with the roller bearing inserted before the edge of the bearing seat is rolled
  • FIG. 2 shows the method of rolling
  • FIG. 3 shows the rolled edge in an enlarged sectional view after rolling
  • FIG. 4 shows the entire hub of the end shield after rolling
  • FIG. 5 shows the electrical machine with two end shields according to the invention.
  • a bearing receptacle 16 is arranged in a ring around an axis 13 concentrically.
  • the bearing holder IS essentially represents a bore 19 which is cylindrical.
  • the bearing receptacle 16 has an annular collar 22 at one axial end, which serves as a stop for a bearing 25.
  • the annular collar 22 thus serves as a definition for the position of the bearing 25, in particular as a fixed bearing, in an axial direction.
  • the bearing 25 is designed as a roller bearing and has an outer ring 28 which is inserted into the bore 19.
  • an annular edge 31 extends, which is conically shaped radially outward.
  • Cone line 34 forms an angle ⁇ with axis 13. Because the bore 19 has the axis 13 as the central axis, the representation of the angle in FIG. 1 also serves in relation to the axis 13.
  • a tool 37 is shown opposite the end of the edge 31 pointing away from the bearing 25, which tool serves the edge 31 of the bearing receptacle 16 without shearing or shearing material stress to form a collar 40 which is bent over the outer ring 28, see also FIG. 2.
  • FIG. The edge 31 projects over an inner surface 32 of the end shield.
  • FIG. 2 shows how the edge 31 of the bearing seat 16 is bent by means of the tools 37 without shearing to the collar 40 over the outer ring 28.
  • the two tools 37 are rollers, which in the example shown rotate about axes 43, which are arranged perpendicular to the axis 13 of the bearing holder 16 and the bearing 25.
  • the axes 43 could also not be arranged perpendicular to the axis 13.
  • the tools 37 have a surface line 46 which corresponds to the contour which the collar 40 assumes after the finished rolling in or massive forming.
  • the surface line 46 essentially corresponds to the outer contour of the collar 40 after the curling.
  • the tools 37 in turn rotate during the ⁇ inrolling around the axis 13 by means of a tool holder, not shown.
  • a first dimension here is the width B with which the collar 40 of the bearing receptacle 16 projects in the radial direction over the outer ring 28 of the bearing 25.
  • the dimension B is defined as the length of the radial extension of the collar 40 radially inward, specifically starting from the outer diameter of the outer ring 28 in the radially inward direction.
  • dimension B is between 2.4 and 2.9 mm in the more favorable case.
  • the first approximation here is that the collar has a height of between 0.8 and 2.0 mm.
  • a second approximation i.e. cheaper, a height between 1.1 mm and 1.5 mm.
  • An edge radius R of the bearing 25 is defined as the radius with which a cylindrical outer surface of the outer ring 28 merges into an axial end surface of the outer ring 28.
  • the range between 1.0 mm and 2.0 mm is a favorable measurement range for this edge radius R of the outer ring 28.
  • the angular range between 25 ° and 50 ° has for the ⁇ angle shown in Figure 1 arise in 'first approximation.
  • an angle range between 30 ° and 45 ° has been found to be favorable.
  • the optimal range is the angular range between 35 ° and 45 °.
  • FIG. 4 shows a spatial detail of the view of the inner surface 32 of the bearing plate with the bearing receptacle 16 Collar 40 with its outward surface. Due to the chosen method of rolling, which is a massive forming or rolling, this surface has excellent properties and is, for example, harder than a surface as it is created according to the prior art.
  • FIG. 5 shows an electrical machine 50 which has two of the end shields 10 according to the invention. Depending on requirements, of course, only one of the two end shields 10 can be produced as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

La présente invention concerne un flasque appartenant notamment à un générateur destiné à des véhicules automobiles, comprenant au moins un logement de palier (16), un palier (25) mis en place dans le logement de palier (16) et un anneau externe (28), la position du palier (25) dans le logement de palier (16) étant établie par déformation d'un bord (31) dudit logement accompagnée de la formation d'une contre-dépouille. Le flasque se caractérise en ce que le bord (31) du logement de palier (16) est déformé sans cisaillement pour former un rebord (40) le long de l'anneau externe (28).
PCT/DE2002/004668 2001-12-21 2002-12-20 Flasque pour moteur electrique, et moteur electrique correspondant WO2003056197A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02798285A EP1458985A1 (fr) 2001-12-21 2002-12-20 Flasque pour moteur electrique, et moteur electrique correspondant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10163234.7 2001-12-21
DE10163234A DE10163234A1 (de) 2001-12-21 2001-12-21 Lagerschild für eine elektrische Maschine sowie elektrische Maschine

Publications (1)

Publication Number Publication Date
WO2003056197A1 true WO2003056197A1 (fr) 2003-07-10

Family

ID=7710359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/004668 WO2003056197A1 (fr) 2001-12-21 2002-12-20 Flasque pour moteur electrique, et moteur electrique correspondant

Country Status (3)

Country Link
EP (1) EP1458985A1 (fr)
DE (1) DE10163234A1 (fr)
WO (1) WO2003056197A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909738A1 (fr) * 2006-12-11 2008-06-13 Snr Roulements Sa Procede d'assemblage d'une bague de roulement avec un organe mecanique
WO2009000596A1 (fr) * 2007-06-27 2008-12-31 Robert Bosch Gmbh Flasque de palier et procédé pour sa fabrication
WO2009000632A2 (fr) * 2007-06-27 2008-12-31 Robert Bosch Gmbh Moteur électrique et procédé de fabrication d'un moteur électrique
WO2011091853A1 (fr) * 2010-01-29 2011-08-04 Aktiebolaget Skf Roulement et procédé de fabrication de ce roulement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007998B4 (de) * 2007-02-17 2017-07-13 Franke & Heydrich Kg Wälzlager in Form eines Rillenkugellagers oder eines Vierpunktlagers
DE102008053575B4 (de) * 2008-10-15 2016-12-01 Bühler Motor GmbH Lageranordnung für einen Antrieb und Verfahren zu seiner Herstellung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758930A (en) * 1971-11-18 1973-09-18 Frost Eng Prod Inc Method of making hub or bearing housing, and pulley
EP0485001A2 (fr) * 1990-11-09 1992-05-13 Automotive Components Dunstable Limited Procédé de montage d'un palier
DE4224817A1 (de) * 1992-07-27 1994-02-03 Electro Pneumatic Int Transportrolle für eine Rollenbahn im Laderaum eines Flugzeuges
US5490732A (en) * 1993-11-23 1996-02-13 Fag Kugelfischer Georg Schafer Ag Wheel bearing hub with deformed bead
DE19720615C1 (de) * 1997-05-16 1998-06-04 Bosch Gmbh Robert Pumpenaggregat, insbesondere für schlupfgeregelte Bremsanlagen von Fahrzeugen
EP0854303A2 (fr) * 1997-01-17 1998-07-22 Nsk Ltd Ensemble de roulement pour supporter une roue d'un véhicule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522461A1 (de) * 1985-06-22 1987-01-02 Roland Man Druckmasch Halterung von laufringen
DE19613441B4 (de) * 1996-04-04 2005-03-24 Fag Kugelfischer Ag Verfahren zur Herstellung einer aus mehreren Einzelteilen bestehenden Wälzlagerbaueinheit
US5822859A (en) * 1996-10-07 1998-10-20 General Motors Corporation Bearing with integrally retained separable race
JP3845942B2 (ja) * 1997-03-31 2006-11-15 日本精工株式会社 車輪支持用ハブユニット
US6105251A (en) * 1997-10-20 2000-08-22 General Motors Corporation Integrally retained bearing race with improved twisting resistance
DE29809031U1 (de) * 1998-05-19 1998-09-24 Skf Gmbh Vorrichtung zur axialen Befestigung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758930A (en) * 1971-11-18 1973-09-18 Frost Eng Prod Inc Method of making hub or bearing housing, and pulley
EP0485001A2 (fr) * 1990-11-09 1992-05-13 Automotive Components Dunstable Limited Procédé de montage d'un palier
DE4224817A1 (de) * 1992-07-27 1994-02-03 Electro Pneumatic Int Transportrolle für eine Rollenbahn im Laderaum eines Flugzeuges
US5490732A (en) * 1993-11-23 1996-02-13 Fag Kugelfischer Georg Schafer Ag Wheel bearing hub with deformed bead
EP0854303A2 (fr) * 1997-01-17 1998-07-22 Nsk Ltd Ensemble de roulement pour supporter une roue d'un véhicule
DE19720615C1 (de) * 1997-05-16 1998-06-04 Bosch Gmbh Robert Pumpenaggregat, insbesondere für schlupfgeregelte Bremsanlagen von Fahrzeugen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909738A1 (fr) * 2006-12-11 2008-06-13 Snr Roulements Sa Procede d'assemblage d'une bague de roulement avec un organe mecanique
EP1935528A1 (fr) * 2006-12-11 2008-06-25 S.N.R. Roulements Procédé d'assemblage d'une bague de roulement avec un organe mécanique
WO2009000596A1 (fr) * 2007-06-27 2008-12-31 Robert Bosch Gmbh Flasque de palier et procédé pour sa fabrication
WO2009000632A2 (fr) * 2007-06-27 2008-12-31 Robert Bosch Gmbh Moteur électrique et procédé de fabrication d'un moteur électrique
WO2009000632A3 (fr) * 2007-06-27 2009-03-19 Bosch Gmbh Robert Moteur électrique et procédé de fabrication d'un moteur électrique
WO2011091853A1 (fr) * 2010-01-29 2011-08-04 Aktiebolaget Skf Roulement et procédé de fabrication de ce roulement

Also Published As

Publication number Publication date
EP1458985A1 (fr) 2004-09-22
DE10163234A1 (de) 2003-07-10

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