WO2007088117A1 - Goujon pour entrainement a planetaires et procede d'usinage de son extremite - Google Patents

Goujon pour entrainement a planetaires et procede d'usinage de son extremite Download PDF

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Publication number
WO2007088117A1
WO2007088117A1 PCT/EP2007/050588 EP2007050588W WO2007088117A1 WO 2007088117 A1 WO2007088117 A1 WO 2007088117A1 EP 2007050588 W EP2007050588 W EP 2007050588W WO 2007088117 A1 WO2007088117 A1 WO 2007088117A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
planet
planetary
chamfer
predetermined breaking
Prior art date
Application number
PCT/EP2007/050588
Other languages
German (de)
English (en)
Inventor
Ramon Jurjanz
Norbert Radinger
Original Assignee
Schaeffler 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 Kg filed Critical Schaeffler Kg
Publication of WO2007088117A1 publication Critical patent/WO2007088117A1/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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers

Definitions

  • the invention relates to bolts in a planetary drive with a chamfer sloping towards an end side of the bolt on at least one end of the bolt, a planetary drive with such a bolt and a method for machining the end of the bolt.
  • Such bolts are spacers and / or connecting means and / or planet pins between carrier plates of the planet carrier in planetary drives.
  • the spacers are located between the planet pins and take no planet gears. They are aligned with the planet pins and secure the dimensionally stable distance between carrier plates.
  • the connecting elements are also spacers, connect the carrier plates, secure the distance between planetary gears between the carrier plates and reinforce the construction of the planetary drive.
  • the planetary bolts On planet pins one or more planet gears are stored.
  • the planetary bolts have continuous or stepped cylindrical outer and hollow geometries formed on the inside.
  • Prior art bolts are machined from bar stock separated, partly from Schmiederohlingen or produced as extruded part and then optionally provided with bevels.
  • Zentrierfasen facilitate the assembly of the bolt in corresponding openings, for example, the planet carrier.
  • the planet pins are usually cured, and machined on the outer cylindrical surfaces with raceway quality for the tracks of the planetary bearings.
  • DE 20 24 469 shows a planetary drive with planets between support plates.
  • the carrier plates are connected to each other by means of connecting elements, which in this case are sheet metal tabs - which, however, are also embodied as bolts in other planetary drives.
  • the bolts are chamfered at the ends to facilitate the mounting of the bolt in the opening on the wall portion of the carrier.
  • the bolt when the bolt is seated in the opening with an interference fit, it is axially secured in the planetary carrier by plastically forming material of the wall portion from the edge of the opening against the chamfer.
  • plastically forming material of the wall portion from the edge of the opening against the chamfer There are also planetary gears in which material from the end of the bolt is caulked over the edge or edge of the opening.
  • the not yet assembled bolts are initially provided in the latter case with the necessary hardness for the bearing seat and then locally at the zone where the material for caulking is to be displaced tempered to be soft for this plastic deformation.
  • the object of the invention is therefore to find ways and means with which planetary gears can be mounted easier and more accurate.
  • the end face of the bolt mounted in the planetary drive has at least one breakage point produced by breaking off material of the bolt and visible.
  • the break point is optionally further processed after the break, for example by grinding or left unprocessed.
  • the fracture point left unprocessed has a surface structure formed by the fracture and left untreated after the fracture.
  • the bolt is provided in its manufacture with one or more predetermined breaking notches of any shape.
  • the predetermined breaking notches are radial depressions of any geometry that weaken the cross section of the bolt so that a predetermined breaking point is created.
  • a preferred embodiment provides an annular groove as a predetermined breaking notch. The annular groove is made radially so deep that the cross section of the material, which connects radially to the groove bottom, is relatively small. This assures that the proportion of material which adjoins the predetermined breaking notch axially on the end of the bolt and which is to be separated from the end of the bolt is reliably separated off at the predetermined breaking notch.
  • the bolt is a spacer or connecting means or a planetary pin. Also conceivable is the use of bolts, with two or more of the functions.
  • the planetary pin is provided by insert or by hardening with the necessary hardness, for example, with track hardness for the planetary bearing.
  • the material of the bolt on the predetermined breaking notch is suitable for breakage, since the cross section is either through hardened or case hardened with bolts, due to the reduced cross section is almost hardened.
  • the bolt optionally has at one or both of its axial ends one or more predetermined breaking notches and a notch axially adjoining section which is preferably an outer cylindrical collar.
  • the predetermined breaking notches have internal flanks, one of which remains as the chamfer after the end-side breaking off on the bolt.
  • the chamfer (s) is / are preferably one or more plane or curved or graduated and inclined to the central axis of the bolt annular surface (s) or annular surfaces with a different contour.
  • the bolt with predetermined breaking notch (s) is inserted or pressed into the opening of the planet carrier, the planetary drive or another wall section until the section to be broken protrudes so far that the bolt is received at this section in a device can.
  • the bolts are first received at the portion to be broken, exactly aligned, held and then the other transmission components are mounted on the bolts.
  • the sections are cut off, sheared off, torn off or otherwise broken off by means of suitable means, such as pliers or clamping jaws at the predetermined breaking notch. There remains a visible in the opening or protruding from the opening visible fracture.
  • the bolt is axially secured in the carrier by plastic material from the wall portion in which the bolt is received, in the form of tabs or caulking plastically against the end face, preferably against the chamfer, is formed.
  • the invention facilitates the very accurate assembly and surveying of planetary gears of the genus, especially when the invention is applied to the planet pins.
  • the protruding sections or collars are only then informed of the planetary drive, i. removed from the end of the planetary pin when the planetary gear is fully assembled. Until then, these serve for aligning, holding, measuring and gripping during handling and transport. It is even conceivable that the sections remain until the assembly in gearboxes, axles, etc. on the planetary drive and are removed only immediately before installation. The planetary gears can thus be better transported and fed.
  • the quality control is simplified because the bolts themselves can be chosen as a reference for measurements due to the protruding portion or can be added to the measurement for measuring.
  • FIG. 1 shows a main view of a planetary drive
  • FIG. 2 shows the planetary drive of FIG. 1 cut longitudinally along the line N-II
  • Figure 3 shows the planetary drive of Figure 1 as a pre-assembly on a
  • FIG. 4 does not enlarge the detail X from FIG. 4 to scale and the schematic illustration of a variant of a end-side machining of a planetary bolt,
  • FIG. 5 the detail Z from FIG. 2 not enlarged to scale after the end-side machining of the planetary bolt and after the axial securing of the bolt in the planetary drive
  • Figure 6 shows the detail view A of Figure 2 is not enlarged to scale, after the end-side machining of the planetary bolt and
  • Figure 7 shows an embodiment of a planetary bolt on both
  • End has a predetermined breaking notch in the form of a predetermined breaking groove.
  • Figures 1 and 2 show a planetary drive 1 in the form of a pre-assembled with three planetary gears planet carrier 2.
  • Each of the planet gears 2 is mounted with a needle bearing 4 each on a planet shaft 3.
  • the planet pins 3 are seated with one end in a support plate 5 of the planet carrier 6 and with the other end 7 in a sprocket 8.
  • the planet carrier 6 is held together by bolt-like connecting elements 9.
  • the connecting elements 9 hold the support plate 5 and the ring gear 8 with axial distance from each other and thus secure the axial space for the planetary tenzier 2 with axial discs 11 including axial operating clearance.
  • the invention is applied to bolts 10 in the form of one, two or all of the planetary pin 3 of the planetary drive 1, but could equally well be applied to the connecting elements 9 or to the planet pins 3 and fasteners 9.
  • the bolt 10 In its initial state, the bolt 10, as at least one predetermined breaking notch 12, as shown in Figure 7, alternatively, two of the predetermined breaking notches 12 on.
  • the predetermined breaking notches 12 are annular grooves with opposite inner flank 13, but could also be one or more circumferentially distributed notches.
  • the cross section of the bolt is greatly reduced at the predetermined breaking notch radially below the predetermined breaking notch and substantially hardened.
  • the annular grooves are followed by the sections to be separated in the form of collars 14.
  • the collars 14 are cylindrical outside and hollow inside and in this example have the same outer diameter as the bolt itself.
  • the outer diameter of the coils may alternatively differ from collar to collar but also from pin to collar. It is conceivable, for example, that at least one collar has a larger or smaller diameter than the actual bolt or even of the cylindrical shape deviating geometries of the outer and / or inner cross-section.
  • the planet pins 3 are received in the assembly of the planetary drive 1 to the axially beyond the support plate 5 out standing coils 14 in a device 3 shown in Figure 3 only shown.
  • the center axes 3a of the planet pins 3 are then aligned very exactly parallel to each other.
  • the ends 7 are for example pressed into the openings 17 of the carrier sheet.
  • the collar 14, for example, in the direction of the arrow so charged that the bolt 10 breaks at the end of the predetermined breaking notch 12 and the collar 14 is separated.
  • FIG. 2 shows a longitudinal section through the planetary drive 1 after the end-side machining of the bolts 10, and FIGS. 5 and 6 show the detail Z and the view A of this longitudinal section.
  • the break point 20 is not further processed after the break, so that its surface is indicated as in Figure 6 with the black and white marked structure, the surface remains in fracture-gray state.
  • the planet pins 3 are axially secured with deformations 18 which abut against the respective chamfer of the respective planet pin 3.
  • the deformations 18 are in this case formed plastically, for example by caulking, at the edge of the openings 17 of the material of the support plate 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un goujon (10) d'entraînement (10) à planétaires doté d'un chanfrein (19) en pente vers le côté frontal (16) du goujon (10) sur au moins une extrémité (7) du goujon (10), et qui présente sur le côté frontal (16) au moins un emplacement de rupture (20).
PCT/EP2007/050588 2006-02-02 2007-01-22 Goujon pour entrainement a planetaires et procede d'usinage de son extremite WO2007088117A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004720.6A DE102006004720B4 (de) 2006-02-02 2006-02-02 Bolzen in einem Planetentrieb und Verfahren zu dessen endseitiger Bearbeitung
DE102006004720.6 2006-02-02

Publications (1)

Publication Number Publication Date
WO2007088117A1 true WO2007088117A1 (fr) 2007-08-09

Family

ID=37814523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/050588 WO2007088117A1 (fr) 2006-02-02 2007-01-22 Goujon pour entrainement a planetaires et procede d'usinage de son extremite

Country Status (2)

Country Link
DE (1) DE102006004720B4 (fr)
WO (1) WO2007088117A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010112302A1 (fr) * 2009-03-28 2010-10-07 Schaeffler Technologies Gmbh & Co. Kg Train planétaire avec élément d'accouplement
US11428310B2 (en) 2019-06-03 2022-08-30 Allison Transmission, Inc. Stepped spindle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210528A1 (de) 2016-06-14 2017-12-14 Schaeffler Technologies AG & Co. KG Querlochstanzen von Planetenradgetriebebolzen und Planetenradgetriebebolzen mit doppelkonischen Fluidleitdurchgangsöffnungen
DE102016210526B4 (de) 2016-06-14 2023-06-15 Schaeffler Technologies AG & Co. KG Planetenradgetriebebolzen mit endseitiger Montagemarkierung und Verfahren zum Herstellen eines Planetenradgetriebebolzens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024469A1 (de) 1969-06-17 1971-03-11 Borg Warner Ltd Planetenradtrager und Verfahren zu dessen Herstellung
JPH04341641A (ja) * 1991-05-20 1992-11-27 Nissan Motor Co Ltd 遊星歯車装置
JP2002021946A (ja) * 2000-07-05 2002-01-23 Aida Eng Ltd 自動変速機の遊星歯車装置
JP2005147285A (ja) * 2003-11-17 2005-06-09 Nsk Ltd 遊星歯車機構
JP2005240870A (ja) * 2004-02-25 2005-09-08 Denso Corp スタータの製造方法及びスタータ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180210B (de) * 1961-01-27 1964-10-22 Demag Ag Umlaufraedergetriebe mit innenverzahntem Aussenrad
DE2219078C3 (de) * 1972-04-19 1975-06-12 Bhs-Bayerische Berg-, Huetten- Und Salzwerke Ag, 8000 Muenchen Verzweigungsgetriebe mit verschiedenen Abstützungsmöglichkeiten für das Reaktionsglied
DE19954132A1 (de) * 1999-11-11 2001-05-17 Zahnradfabrik Friedrichshafen Planetengetriebe
DE10014464A1 (de) * 2000-03-23 2001-09-27 Zahnradfabrik Friedrichshafen Verfahren zum positionsgenauen Zusammenbau einer Planetenrad-Einheit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024469A1 (de) 1969-06-17 1971-03-11 Borg Warner Ltd Planetenradtrager und Verfahren zu dessen Herstellung
JPH04341641A (ja) * 1991-05-20 1992-11-27 Nissan Motor Co Ltd 遊星歯車装置
JP2002021946A (ja) * 2000-07-05 2002-01-23 Aida Eng Ltd 自動変速機の遊星歯車装置
JP2005147285A (ja) * 2003-11-17 2005-06-09 Nsk Ltd 遊星歯車機構
JP2005240870A (ja) * 2004-02-25 2005-09-08 Denso Corp スタータの製造方法及びスタータ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010112302A1 (fr) * 2009-03-28 2010-10-07 Schaeffler Technologies Gmbh & Co. Kg Train planétaire avec élément d'accouplement
US11428310B2 (en) 2019-06-03 2022-08-30 Allison Transmission, Inc. Stepped spindle

Also Published As

Publication number Publication date
DE102006004720A1 (de) 2007-08-23
DE102006004720B4 (de) 2015-07-23

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