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WO1999032804A1 - Fabrication d'une piece cylindrique creuse dentee - Google Patents

Fabrication d'une piece cylindrique creuse dentee Download PDF

Info

Publication number
WO1999032804A1
WO1999032804A1 PCT/EP1998/006628 EP9806628W WO9932804A1 WO 1999032804 A1 WO1999032804 A1 WO 1999032804A1 EP 9806628 W EP9806628 W EP 9806628W WO 9932804 A1 WO9932804 A1 WO 9932804A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow cylindrical
semi
inner part
cylindrical part
ring gear
Prior art date
Application number
PCT/EP1998/006628
Other languages
German (de)
English (en)
Inventor
Josef Schwuger
Rudolf Sinner
Original Assignee
INA Wälzlager Schaeffler oHG
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 INA Wälzlager Schaeffler oHG filed Critical INA Wälzlager Schaeffler oHG
Publication of WO1999032804A1 publication Critical patent/WO1999032804A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • 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
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0631—Sliding sleeves; Details thereof
    • 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
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F16D2023/0637—Details relating to the hub member on which the sliding is arranged

Definitions

  • the present invention relates to a method for producing hollow cylindrical parts provided with a tooth profile from semi-finished products.
  • Semi-finished products can for example be round or rectangular profiles, which are available as bars or as strip goods.
  • the invention also relates to processes for the production of parts of this type, in which material-forming machining processes, preferably roller burnishing and embossing, are preferably used.
  • the object of the present invention is therefore to propose a method according to the features of the preamble of claim 1 in such a way that the effort in providing tools which are required for the production of hollow cylindrical parts provided with a profile, in particular tooth profile, is reduced .
  • this object is achieved in that an elongated semifinished product is provided with a tooth profile on at least one of its surfaces, after which the semifinished product is brought into an annular shape with opposite circumferential ends of the semifinished product, one of the two circumferential surfaces being provided with the tooth profile , after which the circumferential ends are immovably fixed to each other.
  • the ends are preferably firmly connected to one another by means of a welding process.
  • Embossing and punching tools are preferably suitable for the method according to the invention.
  • a tape is preferably used as the semi-finished product. passes between rollers, between which the strip is formed.
  • One of the rollers is provided with the desired tooth profile, which is stamped into the adjacent surface of the belt.
  • the strip thus prepared can be divided into pieces. The length of a piece is adapted to the later pitch circle diameter, for example of a ring gear.
  • the pieces are then each brought into their annular shape, the ends being connected to one another preferably by means of resistance welding or flash butt welding.
  • the two welding methods mentioned are particularly suitable for the method according to the invention, because the function of the tooth profile is retained in the transition from one end to the other end of the piece.
  • sprockets are produced using the method according to the invention, they can be easily hardened in a heat treatment process and then connected to an outer or inner part, for example a hub, which can be soft.
  • the inner or outer part does not have to be surface or heat treated together with the ring gear; Post-processing of the soft inner or outer part is easily possible even if the ring gear is connected to the hard inner or outer part.
  • the hollow cylindrical part for example the externally toothed ring gear, is then carried on its inner lateral surface by a hub, the hub and the ring gear being connected to one another in a rotationally fixed manner.
  • a profile is formed on a counter surface of the semifinished product, preferably the belt, which lies opposite the surface provided with the tooth profile, by material deformation. If the rollers described are used, this profile can be made together with the embossing of the tooth profile if, for example, a further pair of rollers is provided through which the semifinished product or the strip is guided, one of these two rollers bearing an engraving which carries this profile in impresses the counter surface of the semi-finished product.
  • This profile can be, for example, a contact edge, on which the inner part later rests and is thus perfectly aligned with the hollow cylindrical part.
  • this profile can also have recesses or projections distributed over the circumference, with which projections or recesses of the inner or outer part engage. In this way, a perfect non-rotatable connection is ensured.
  • an inner part it can be integrated into the hollow cylindrical part while the method according to the invention is being carried out. This is done in that the inner part is arranged with its peripheral surface over a counter surface of the longitudinal semi-finished product, for example tape, the mentioned counter surface opposite the surface provided with the tooth profile, and then the semi-finished product enclosing the inner part in its annular shape brought. Subsequently, the peripheral ends of the semi-finished product are firmly connected.
  • the inner part can be prepared on its outer circumference and the hollow cylindrical part can be prepared on its counter surface in such a way that after the inner part has been edged, the two parts are connected to one another in a rotationally fixed manner by means of interlocking projections and recesses.
  • projections or recesses can also be produced in the mentioned embossing process, it being additionally possible to provide a contact edge for aligning the inner part.
  • the outer and inner part can optionally also be designed as a molded part, the hollow cylindrical part preferably being able to be inserted into an injection mold after its production, the inner part being able to be injection molded directly onto the corresponding outer surface of the hollow cylindrical part.
  • the outer surface of the hollow cylindrical part can of course be provided with recesses into which the molding compound penetrates, so that a rotationally fixed connection between the inner part or the outer part and the hollow cylindrical part is ensured.
  • the hollow cylindrical part be first heated to enlarge its inner diameter.
  • the comparatively cold inner part is now inserted into the hollow cylindrical part, which is then cooled.
  • its inner diameter is now reduced and shrinks onto the inner part.
  • the shrinking forces merely fix the two joined parts in the axial direction.
  • This axial fixation has the advantage that separate means for axial fixation, for example shaft locking rings, can be dispensed with.
  • an outer ring is mounted on the annular part, in particular is pressed on.
  • the outer ring can be in operative connection with a further machine element, for example for the transmission of axial forces from the further machine element to the annular part. If the annular part is held firmly in the outer ring, the connection of the peripheral ends of the annular part by means of a welded connection can be omitted; the holding can be achieved for example by pressing the outer ring onto the annular part.
  • complicated shapes of the teeth of the tooth profile can also be easily achieved.
  • conical extensions on the end faces of a conical internal toothing can be realized in that each tooth has an elevated central region and end regions which are lowered on the end sides.
  • This contour can, for example, be easily taken into account in an embossing tool or embossing roller.
  • Figure 1 is a semi-finished product with an embossed tooth profile
  • Figure 2 shows the semi-finished product according to Figure 1 with a uniform tooth profile
  • FIG. 3 shows the bending of the semifinished product from FIG. 2 in a circular shape to form a gearwheel under the influence of an inner part
  • Figure 4 shows a longitudinal section through the ring gear according to
  • Figure 5 shows another ring gear
  • Figure 6 shows a longitudinal section through the ring gear in Figure 5;
  • FIG. 10 shows a view of the toothed ring in a further modification
  • Figure 1 1 shows a longitudinal section through the ring gear from Figure
  • Figure 12 in a spatial representation a toothed ring provided with internal teeth.
  • FIG. 1 shows a perspective illustration of a strip 1 with a rectangular cross section, the upper side of which is largely provided with a tooth profile formed from teeth 2.
  • Different shapes of the teeth 3 are shown by way of example: from left to right, FIG. 1 shows teeth 3 which have a constant contour over their entire axial extent, the subsequent middle shape provides that the teeth 2 have a rectangular recess 3 in the central region.
  • the adjoining end areas 5 are lowered.
  • the provision of the rectangular recesses 3 or the lowered end regions 4 results from the intended application of toothed rings 5, which are created from elongated pieces of the band 1.
  • FIG. 2 shows the band from FIG. 1, but with a uniform shape of the teeth 2.
  • FIG. 3 shows the band 1 provided with the tooth profile 2, the illustration showing that the band 1 moves from its plane into a circular shape is bent, whereby - as shown - an inner part 6 can be included.
  • the inner part 6 is inserted in a groove 7 of a counter surface 8 of the band 1, the counter surface 8 being opposite the surface provided with the toothing 2.
  • the inner part 6 is provided with bores 6a which, for example, enable the toothed ring 5 to be fastened to a shaft or hub (not shown) by means of a screw connection.
  • the longitudinal section according to FIG. 4 clearly shows the arrangement of the inner part 6 in the groove 7, the lateral boundaries of the groove 7 forming contact edges 9 for the inner part 6. In this way, the inner part 6 is properly aligned with respect to the hollow cylindrical part 1.
  • FIG. 5 clearly shows the connection of the circumferential ends of the band 1 by means of a welded joint 10.
  • FIG. 6 shows the ring gear 5 from FIG. 5 in longitudinal section, with a modified counter surface 8 which has conical extensions 11, 12 on both end faces. These conical extensions 11, 12 can easily be provided, for example, on a roller of an embossing device, not shown, by means of conical extensions at the ends thereof. Between the conical extensions 1 1, 12 an offset forming an abutment edge 1 3 is provided, the abutment edge 13 being provided for the inner part 6.
  • FIGS. 7 to 9 each show, in a broken representation, a section of the toothed ring 5 with variations in the shape of the counter surface 8.
  • grooves 14 are provided on the counter surface 8 on both ends, which can also be provided without problems on rollers of the embossing device, not shown .
  • the inner axial boundaries of the grooves 14 form contact edges 15 for inner parts, not shown.
  • a groove 14 is only provided on one end face.
  • a further groove 15 is provided, which is arranged between the two grooves 14.
  • the shape of the inner circumferential surface makes it clear that hollow cylindrical parts that are to be produced in the deep-drawing process cannot be provided with such an internal contour, or can only be provided with great effort, since such deep-drawing tools cannot, or only in a very complex manner, because of the necessary undercut Way can be trained.
  • known forming processes such as that already exist Embossing or rolling mentioned are particularly advantageously suitable for the method proposed according to the invention.
  • FIGS. 10 and 11 show a further modification of the contour of the inner circumferential surface of the ring gear 5, on which a plurality of axially parallel grooves 17 formed over the circumference are formed, into which protrusions 18 of an inner part 19 engage, a part of the inner part 19 is shown in dashed lines.
  • FIG. 12 shows a further ring gear 20 with internal teeth 21.
  • a band is provided with the internal toothing on one side, then bent into a circular shape, the inner lateral surface having the internal toothing 21.
  • An outer ring 22 is mounted on the smooth outer surface of the ring gear 20, the outer ring 22 is only partially shown in dashed lines.
  • the outer ring 22 can also be produced by the method according to the invention.
  • the method according to the invention is suitable not only for the production of hollow cylindrical parts provided with a tooth profile, but independently of such a tooth profile also for those hollow cylindrical parts whose outer surface is to be provided with any profile such as circumferential grooves.
  • the outer ring 22 is provided with a smooth outer surface.
  • this lateral surface can be designed, for example, as a guide surface for a belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gears, Cams (AREA)

Abstract

Les frais relatifs à la fabrication de pièces cylindriques creuses (5, 20) munies d'un profil denté sont réduits, selon l'invention, par le procédé de fabrication suivant: un demi-produit allongé (1) est pourvu, sur au moins une de ses surfaces, d'un profil denté (21). On confère ensuite à ce demi-produit (1) une configuration circulaire, ses extrémités circonférentielles se faisant face. Lesdites extrémités sont ensuite fixées l'une à l'autre à demeure.
PCT/EP1998/006628 1997-12-22 1998-10-21 Fabrication d'une piece cylindrique creuse dentee WO1999032804A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757186.7 1997-12-22
DE1997157186 DE19757186A1 (de) 1997-12-22 1997-12-22 Herstellung eines gezahnten hohlzylindrischen Teils

Publications (1)

Publication Number Publication Date
WO1999032804A1 true WO1999032804A1 (fr) 1999-07-01

Family

ID=7852955

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/006628 WO1999032804A1 (fr) 1997-12-22 1998-10-21 Fabrication d'une piece cylindrique creuse dentee

Country Status (2)

Country Link
DE (1) DE19757186A1 (fr)
WO (1) WO1999032804A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115356A1 (de) * 2001-03-28 2002-10-02 Ina Schaeffler Kg Zahnrad aus Blech
DE10115351A1 (de) * 2001-03-28 2002-10-02 Ina Schaeffler Kg Zahnrad aus Blech
WO2012002866A1 (fr) * 2010-07-02 2012-01-05 Aktiebolaget Skf Couronne dentée creuse et procédé pour sa fabrication
US20130101246A1 (en) * 2010-07-02 2013-04-25 Aktiebolaget Skf Bearing Ring and a Method for its Manufacturing
CN108176957A (zh) * 2018-01-31 2018-06-19 江苏子田机械有限公司 一种无噪音齿轮的生产工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018093C2 (de) * 2000-04-12 2003-11-06 Ina Schaeffler Kg Verzahnung für eine Synchronisiereinheit
DE10210393A1 (de) * 2002-03-08 2003-09-25 Ina Schaeffler Kg Verfahren zum Herstellen eines Hohlrades für Planetenträger
DE202006010407U1 (de) * 2006-07-05 2006-09-14 Schaeffler Kg Schiebemuffe
DE102006042216A1 (de) * 2006-09-08 2008-03-27 Schaeffler Kg Synchronkörper
EP1950440B2 (fr) † 2007-01-26 2013-11-13 Hoerbiger Antriebstechnik GmbH Procédé de fabrication d'un panier d'embrayage d'un embrayage double
DE102014214743B4 (de) 2014-07-28 2021-12-23 Schaeffler Technologies AG & Co. KG Ringförmiges Getriebebauteil, insbesondere Hohlrad, mit in Ringform gebogener Laufverzahnung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE386218C (de) * 1923-02-16 1923-12-17 Gregor Kowarski Verfahren zur Herstellung von Zahnraedern, Zahnstangen und aehnlichen Werkstuecken
US3557633A (en) * 1968-03-28 1971-01-26 Olympia Werke Ag Internal gear
US4070920A (en) * 1976-12-09 1978-01-31 The Horsburgh And Scott Company Composite gear having carburized teeth and method of making same
GB2064708A (en) * 1979-11-29 1981-06-17 Berg Winifred M Improved composite gear and method of manufacture
JPS5744438A (en) * 1981-06-11 1982-03-12 Shimano & Co Ltd Manufacture of gear crank of bicycle
DD240240A1 (de) * 1985-08-12 1986-10-22 Schule Fuer Maschinenbau U E T Vorfertigungsstufen fuer hochbelastbare zahnraeder und ihrer herstellungsverfahren
JPS63167173A (ja) * 1986-12-26 1988-07-11 Akitoshi Kitano 歯車
FR2663390A1 (fr) * 1990-06-18 1991-12-20 Bredeau Serge Procede permettant de simplifier la fabrication des dentures d'engrenages.
JPH07125088A (ja) * 1993-11-01 1995-05-16 Chuo Spring Co Ltd 歯車の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123317A (en) * 1982-05-11 1984-02-01 Christopher Davis Lloyd Bimetallic sprocket
DE4319885A1 (de) * 1993-06-16 1994-12-22 Gkn Automotive Ag Verfahren zur Herstellung eines Gelenkaußenteils

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE386218C (de) * 1923-02-16 1923-12-17 Gregor Kowarski Verfahren zur Herstellung von Zahnraedern, Zahnstangen und aehnlichen Werkstuecken
US3557633A (en) * 1968-03-28 1971-01-26 Olympia Werke Ag Internal gear
US4070920A (en) * 1976-12-09 1978-01-31 The Horsburgh And Scott Company Composite gear having carburized teeth and method of making same
GB2064708A (en) * 1979-11-29 1981-06-17 Berg Winifred M Improved composite gear and method of manufacture
JPS5744438A (en) * 1981-06-11 1982-03-12 Shimano & Co Ltd Manufacture of gear crank of bicycle
DD240240A1 (de) * 1985-08-12 1986-10-22 Schule Fuer Maschinenbau U E T Vorfertigungsstufen fuer hochbelastbare zahnraeder und ihrer herstellungsverfahren
JPS63167173A (ja) * 1986-12-26 1988-07-11 Akitoshi Kitano 歯車
FR2663390A1 (fr) * 1990-06-18 1991-12-20 Bredeau Serge Procede permettant de simplifier la fabrication des dentures d'engrenages.
JPH07125088A (ja) * 1993-11-01 1995-05-16 Chuo Spring Co Ltd 歯車の製造方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 117 (M - 139) 30 June 1982 (1982-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 434 (M - 764) 16 November 1988 (1988-11-16) *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 008 29 September 1995 (1995-09-29) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115356A1 (de) * 2001-03-28 2002-10-02 Ina Schaeffler Kg Zahnrad aus Blech
DE10115351A1 (de) * 2001-03-28 2002-10-02 Ina Schaeffler Kg Zahnrad aus Blech
WO2012002866A1 (fr) * 2010-07-02 2012-01-05 Aktiebolaget Skf Couronne dentée creuse et procédé pour sa fabrication
US20130101246A1 (en) * 2010-07-02 2013-04-25 Aktiebolaget Skf Bearing Ring and a Method for its Manufacturing
EP2608904A4 (fr) * 2010-07-02 2014-05-14 Skf Ab Couronne dentée creuse et procédé pour sa fabrication
EP2591242A4 (fr) * 2010-07-02 2014-05-14 Skf Ab Bague de palier et procédé pour sa fabrication
RU2567758C2 (ru) * 2010-07-02 2015-11-10 Актиеболагет Скф Полое зубчатое кольцо и способ его изготовления
US9360050B2 (en) * 2010-07-02 2016-06-07 Aktiebolaget Skf Bearing ring and a method for its manufacturing
CN108176957A (zh) * 2018-01-31 2018-06-19 江苏子田机械有限公司 一种无噪音齿轮的生产工艺

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