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WO1992001877A1 - Systeme d'engrenage differentiel a pignons de face - Google Patents

Systeme d'engrenage differentiel a pignons de face Download PDF

Info

Publication number
WO1992001877A1
WO1992001877A1 PCT/NL1990/000107 NL9000107W WO9201877A1 WO 1992001877 A1 WO1992001877 A1 WO 1992001877A1 NL 9000107 W NL9000107 W NL 9000107W WO 9201877 A1 WO9201877 A1 WO 9201877A1
Authority
WO
WIPO (PCT)
Prior art keywords
satellite
gears
housing
satellite housing
shafts
Prior art date
Application number
PCT/NL1990/000107
Other languages
English (en)
Inventor
Martinus Hubertus Cuypers
Jan Mathijs Seroo
Original Assignee
Crown Gear B.V.
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 Crown Gear B.V. filed Critical Crown Gear B.V.
Priority to PCT/NL1990/000107 priority Critical patent/WO1992001877A1/fr
Publication of WO1992001877A1 publication Critical patent/WO1992001877A1/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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
    • F16H2048/102—Differential gearings with gears having orbital motion with orbital spur gears with spur gears engaging face gears
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H2048/204—Control of arrangements for suppressing differential actions
    • 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
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
    • F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement

Definitions

  • the present invention relates to a differential gearing, equipped for placing between an ingoing shaft and two outgoing shafts lying essentially in line with each other and at right angles to the ingoing shaft, comprising a satellite housing which can be driven by the ingoing shaft so that it rotates about a shaft running coaxially with the outgoing shafts, and in which in the axial direction on either side the ends of the outgoing shafts can be accommodated, two face gears which are situated in the axial direction on either side in the satellite housing and the teeth of which face each other, and which can be connected non-rotatably to the ends of the outgoing shafts accommodated in the satellite housing, and at least two satellite gears in the form of cylindrical gear wheels which are positioned inside the satellite housing and which each mesh with the two face gears and are mounted so that they rotate freely on a shaft situated at right angles to the outgoing shafts and connected firmly to the satellite housing in the direction of rotation of the satellite housing.
  • the present invention is based on the idea that the design of a differential gearing can be simplified further as a result of the use of face gears, so that a differential gearing can be manufactured even more simply and cheaply.
  • This design simplification is obtained according to the invention through the fact that the two face gears situated inside the satellite housing can be moved freely in the radial direction within certain limits relative to the satellite housing and in the axial direction are supported by the satellite housing at the side facing away from the satellite gears, while the shafts of the satellite gears lie at equal angular distances from each other in the direction of rotation of the satellite housing.
  • This ovability of the two face gears in the satellite housing is permissible, since no radial forces act on them, as would be the case with conventional bevel gears.
  • At least three satellite gears are preferably used, which means that the face gears are centred automatically in the radial direction relative to the satellite gears.
  • a further simplification can also be obtained through the satellite gears being movable in the axial direction within certain limits relative to the satellite housing. Since an accurate positioning of the satellite gears relative to the two face gears is not important, there is no reason why the satellite gears should not be movable to a limited extent in the axial direction.
  • Fig. 1 shows a schematic illustration of a differential gearing according to the invention
  • Fig. 2 shows a practical embodiment of a differential gearing according to the invention for use in a lorry
  • Fig. 3 is a cross-section along the line III-III in Fig. 2.
  • the differential gearing shown in Fig. 1 comprises a housing 1, in which a drive shaft 3 is mounted by means of bearings 2, which shaft can be connected to a drive motor.
  • the drive shaft 3 bears on its end a spur cylindrical gear 4 which meshes with a face gear 5 which is fixed to a satellite housing 6, fixed in the housing 1 by means of bearings 7 so that it can rotate about an axis 8.
  • the satellite housing contains a fixed satellite gear shaft 9, which rotates with the satellite housing in a plane 10 at right angles to the axis 8.
  • Two satellite gears 11 and 12 which are designed as spur cylindrical gears are disposed so that they can rotate freely on the satellite gear shaft 9, which satellite gears 11 and 12 are held at a distance from each other by means of a distance sleeve 13 mounted loose on the satellite gear shaft 9.
  • the two satellite gears 11 and 12 each mesh with two face gears 14, 15 disposed opposite each other, each face gear 14, 15 being connected non-rotatably by means of a spline to an outgoing shaft 16, 17 respectively.
  • the outgoing shafts 16 and 17, in the form of half- shafts lie essentially in line and rotate about the same axis 8 as the satellite housing 6.
  • the two outgoing shafts 16 and 17 with the face gears 14, 15 connected thereto are not supported in the radial direction inside the satellite housing 6.
  • the radial support can be omitted because the face gears 14, 15 with the corresponding shafts 16 and 17 are not loaded in the radial direction.
  • the face gears 14 and 15 can thus move freely in the radial direction within certain limits. It will be clear that the shafts 16 and 17 are supported in the usual manner outside the housing 1 of the differential gearing.
  • the two face gears 14 and 15 are supported inside the satellite housing 6 only in the axial direction by means of sliding elements 18, 19, which are placed between the face gear in question and the inside surface of the satellite housing 6.
  • These sliding elements 18, 19 preferably each comprise a number of annular thin plates which are fitted next to each other so that they can rotate freely about the appropriate wheel shaft.
  • These annular plates, three o which are placed next to each other as an example in the drawing, can be made of any suitable material, which may or may not be provided with a wearproof layer. It is particular advantageous to use thin smooth rings of hardened steel for this.
  • the two satellite gears 11 and 12 are fitted on the satellite housing 9 so that they are freely rotatable and axially slidable.
  • the two gears are held more or less in place by the loose distance sleeve 13, while sliding elements 20, 21 are fitted between these gears and the inside surface of the satellite housing 6.
  • sliding elements 18, 19, these sliding elements can be made of one or more thin annular plates, which could possibly be provided with a suitable wearproof surface with a low coefficient of friction. Hardened steel rings available on the market are preferably used for this.
  • the satellite housing 9 used can be a suitably manufactured shaft with constant diameter, which contributes to a simple and cheap manufacture.
  • the satellite gears 11 and 12 can thus slide to a limited extent in the axial direction along the shaft 9 between the sliding elements and the distance sleeve, while the distance sleeve itself is also slidable in the axial direction.
  • This axial displacement is permissible through the use of face gears and has no effect on the proper functioning of the differential gearing.
  • Figs. 2 and 3 show a practical embodiment of a differential gearing according to the invention for use in a lorry.
  • the differential gearing of Figs. 2 and 3 has, however, four satellite gears 22, 23, 24 and 25 which, as in the differential gearing of Fig. 1, are designed as spur cylindrical gears.
  • Each of the four satellite gears 22, 23, 24 and 25 is mounted so that it is freely rotatable on a satellite gear shaft 26, 27, 28 and 29 respectively.
  • the satellite gear shafts 26-29 lie in the plane 10' at right angles to the axis 8' at an angle of 90 : relative to each other.
  • the satellite gear shafts 26-29 are connected to each other at the side of the axis 8' by means of a connecting piece 30.
  • the satellite gear shafts 26-29 and the connecting piece 30 together form a star-shaped satellite gear support 31.
  • the satellite housing 6' is made up of two halves 6a and 6b, which are connected to each other by means of bolts 32.
  • the partial face of the satellite housing 6' coincides with the plane 10' .
  • the free ends of the satellite gear shafts 26-29 are accommodated in cylindrical holes in the satellite housing 6' which are formed in the abutting faces of the semi- cylindrical recesses formed by semi-cylindrical recesses facing each other and formed in the abutting faces of the two satellite housing halves 6a and 6b.
  • the satellite gear support 31 is thus fixed to the satellite housing 6'.
  • the satellite gears 22-25 are mounted on the satellite gear shafts 26-29 by means of bearing sleeves which are confined in the axial direction between the connecting piece 30 and retaining rings.
  • the face gears 14' and 15* are centred automatically in the radial direction relative to the satellite gears.
  • the same effect could be achieved by using three satellite gears the shafts of which are at an angle of 120' relative to each other.
  • the differential gearing of Fig. 2 is designed as a so-called locking differential.
  • a locking sleeve 34 which is provided on the outside with a spline can engage in a complementary spline in the satellite housing 6, so that this sleeve 34 is connected non-rotatably to the satellite housing.
  • On the inside the sleeve 34 is provided with the same internal spline as the face gear 14', so that the sleeve 34 is slidable along the external spline of an outgoing shaft inserted into that face gear 14', in particular a wheel shaft such as the shaft 16 in Fig. 1, the length of the part of the shaft provided with an external spline being a suitable length.
  • the outgoing shaft (wheel shaft) can then be connected non-rotatably to the satellite housing 6.
  • a differential gearing according to the invention is simpler and cheaper to manufacture than a known differential gearing, in which the face gears are supported in the radial direction in the satellite housing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

Le système d'engrenage différentiel conçu pour être placé entre un arbre entrant (3) et deux arbres sortants (16, 17) qui sont pratiquement alignés l'un par rapport à l'autre et qui se trouvent à angles droits par rapport à l'arbre entrant comprend un boîtier satellite (6) qui peut être entraîné par l'arbre entrant de manière à tourner autour d'un arbre tournant coaxialement avec les arbres sortants, et où, dans le sens axial, des deux côtés, les extrémités des arbres sortants peuvent être adaptées, deux pignons de face (14, 15) situés dans le sens axial des deux côtés du boîtier satellite et dont les dents de l'un font face aux dents de l'autre, et qui peuvent être connectés non rotatifs aux extrémités des arbres sortants logés dans le boîtier satellite, et au moins deux pignons satellites (11, 12) se présentant sous forme de roues d'engrenage cylindriques qui sont placées dans le boîtier satellite et qui s'engrènent avec les deux pignons de face et qui sont montées de manière à tourner librement sur un arbre (9) situé à angle droit par rapport aux arbres sortants et connecté solidement au boîtier satellite dans le sens de rotation de ce dernier. Les deux pignons de face (14, 15) situés dans le boîtier satellite peuvent se déplacer librement dans le sens radial dans certaines limites par rapport au boîtier satellite (6), et ils sont supportés par le boîtier satellite dans le sens axial du côté opposé aux pignons satellites (11, 12). Les arbres (9) des pignons satellites se situent à distances angulaires égales l'un par rapport à l'autre, dans le sens de rotation du boîtier satellite.
PCT/NL1990/000107 1990-07-26 1990-07-26 Systeme d'engrenage differentiel a pignons de face WO1992001877A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/NL1990/000107 WO1992001877A1 (fr) 1990-07-26 1990-07-26 Systeme d'engrenage differentiel a pignons de face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL1990/000107 WO1992001877A1 (fr) 1990-07-26 1990-07-26 Systeme d'engrenage differentiel a pignons de face

Publications (1)

Publication Number Publication Date
WO1992001877A1 true WO1992001877A1 (fr) 1992-02-06

Family

ID=19856427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1990/000107 WO1992001877A1 (fr) 1990-07-26 1990-07-26 Systeme d'engrenage differentiel a pignons de face

Country Status (1)

Country Link
WO (1) WO1992001877A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472385A (en) * 1993-03-09 1995-12-05 Clark Equipment Company Differential
WO1998038443A1 (fr) * 1997-03-01 1998-09-03 Frank John Thompson Hancock Engrenage differentiel
EP1298353A2 (fr) 2001-09-27 2003-04-02 DaimlerChrysler AG Engrenage et son utilisation
DE19541748B4 (de) * 1994-11-22 2004-11-18 Ihc Holland N.V. Zahnradkasten für ein kontinuierlich variables Getriebe
CN103486221A (zh) * 2013-09-27 2014-01-01 江苏太平洋精锻科技股份有限公司 面齿轮差速器
CN104806711A (zh) * 2015-04-03 2015-07-29 周媛 车用自动变速器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB255952A (en) * 1925-04-30 1926-07-30 Albert Joseph Rath Improvements in and connected with differential gears and particularly differential gears employed in the transmission of power to the axles of motor road vehicles
US3872741A (en) * 1973-08-08 1975-03-25 Caterpillar Tractor Co Differential gear assembly
NL8702461A (nl) * 1987-10-14 1989-05-01 Hankamp Bv Differentieel.
NL8900043A (nl) * 1989-01-09 1990-08-01 Hankamp Bv Differentieel.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB255952A (en) * 1925-04-30 1926-07-30 Albert Joseph Rath Improvements in and connected with differential gears and particularly differential gears employed in the transmission of power to the axles of motor road vehicles
US3872741A (en) * 1973-08-08 1975-03-25 Caterpillar Tractor Co Differential gear assembly
NL8702461A (nl) * 1987-10-14 1989-05-01 Hankamp Bv Differentieel.
NL8900043A (nl) * 1989-01-09 1990-08-01 Hankamp Bv Differentieel.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472385A (en) * 1993-03-09 1995-12-05 Clark Equipment Company Differential
DE19541748B4 (de) * 1994-11-22 2004-11-18 Ihc Holland N.V. Zahnradkasten für ein kontinuierlich variables Getriebe
WO1998038443A1 (fr) * 1997-03-01 1998-09-03 Frank John Thompson Hancock Engrenage differentiel
EP1298353A2 (fr) 2001-09-27 2003-04-02 DaimlerChrysler AG Engrenage et son utilisation
US6811511B2 (en) 2001-09-27 2004-11-02 Daimlerchrysler Ag Gearwheel pairing and its use
EP1298353A3 (fr) * 2001-09-27 2007-08-01 DaimlerChrysler AG Engrenage et son utilisation
CN103486221A (zh) * 2013-09-27 2014-01-01 江苏太平洋精锻科技股份有限公司 面齿轮差速器
CN104806711A (zh) * 2015-04-03 2015-07-29 周媛 车用自动变速器

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