WO2019185088A1 - Engrenage à ondes de déformation - Google Patents

Engrenage à ondes de déformation Download PDF

Info

Publication number
WO2019185088A1
WO2019185088A1 PCT/DE2019/100278 DE2019100278W WO2019185088A1 WO 2019185088 A1 WO2019185088 A1 WO 2019185088A1 DE 2019100278 W DE2019100278 W DE 2019100278W WO 2019185088 A1 WO2019185088 A1 WO 2019185088A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing element
gear
drive gear
drive
wave
Prior art date
Application number
PCT/DE2019/100278
Other languages
German (de)
English (en)
Inventor
Resat Aras
Original Assignee
Schaeffler Technologies AG & Co. 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 Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to DE112019001615.6T priority Critical patent/DE112019001615A5/de
Publication of WO2019185088A1 publication Critical patent/WO2019185088A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
    • 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
    • F16H49/00—Other gearings
    • F16H49/001—Wave gearings, e.g. harmonic drive transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
    • F01L2001/3521—Harmonic drive of flexspline type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/04—Camshaft drives characterised by their transmission means the camshaft being driven by belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/032—Electric motors

Definitions

  • the invention relates to a suitable as a control gear of an electromechanical camshaft adjuster corrugated transmission according to the preamble of claim 1.
  • Such a wave gear is known, for example, from DE 10 2016 201 536 A1.
  • the well-known wave gear has a designed as a flex ring compliant transmission element, which in this case has an outside reinforcement.
  • the object of the invention is to further develop a harmonic drive which can be used as a control gear of a camshaft adjuster in relation to the cited prior art with regard to a particularly compact, assembly-friendly construction.
  • the corrugated transmission includes in a known per se, a typically non-closed, optionally rotatable as a whole housing element, which is rotatably connected to an internally toothed drive gear, which with a flexible, externally toothed gear element meshes, wherein the flexible transmission element preferably engages at the same time in an internally toothed output gear.
  • the internal gear toothed wheel is non-positively inserted into the housing element, wherein at the same time a positive locking against rotation between the drive gear and the housing element is made.
  • the positive connection between the drive gear and the housing element can be produced, for example, by at least one radially outwardly directed journal of the drive wheel, which engages in a groove of the housing element.
  • the number of grooves and cones is subject to no restrictions.
  • a single pin of the drive gear is sufficient for a rotation against the housing element.
  • the entire drive gear can also have a non-circular, in particular polygonal, for example hexagonal or octagonal, outer contour.
  • a radially inwardly projecting board is formed by which an effective in the axial direction insurance between the housing element and the flexible transmission element is formed.
  • the board can also secure a wave generator, which is provided for deformation of the flexible transmission element, in the axial direction.
  • the generally designated as a housing element part of the wave gear on which the drive gear is positively and non-positively attached, is rational, for example, produced as a sintered part.
  • Another original forming position of the housing element for example, by casting technology, is also possible.
  • a cutting Fier ein of the housing element or a combination of different manufacturing processes, in particular urformender and machining methods is possible.
  • the housing element can either be arranged rigidly in a surrounding construction or be rotatably supported as a whole. In the latter case, the housing element acts as a drive element of the wave gear. In any case, that is also in embodiments in which the housing element is not rotatable, the internally toothed, non-positively and positively inserted into the housing element gear without restricting the generality is referred to as a drive gear.
  • the flexible transmission element is preferably designed as a flex ring.
  • a flex ring is understood to mean a cylindrical element which is annular in the mechanically unloaded state and has no inwardly or outwardly pointing extensions. Within the corrugated transmission of the flex ring acts directly with a second internally toothed gear, namely an output gear together.
  • the flexible transmission element is designed, for example, as a cup-shaped element, then the second internally toothed gear can be dispensed with. Rather, the cup-shaped flexible transmission element can be directly connected to a not necessarily toothed output element, that is an output shaft.
  • the output gear is preferably pressed into the housing element such that the output drive gear with axial play between the drive gear and an annular stop surface of the housing element is arranged.
  • the annular abutment surface which is formed on an inwardly directed rim of the housing element, adjoins an anti-rotation contour, which is effective between the housing element and an element connected to the driven gearwheel.
  • This anti-rotation contour limits the adjustment range of the corrugated transmission which can be used as a positioning gear in the sense of a limitation of the angle of rotation.
  • the annular abutment surface may in this case be arranged radially outside the angle of rotation limiting contour designated as a torsion-preventing contour.
  • the annular abutment surface is typically an uninterrupted, that is to say circular, annular surface running around the complete circumference.
  • the annular abutment surface may have an interruption or a plurality of interruptions in the circumferential direction and be segmented therewith.
  • the desired Verwarwinkelbegrenzungsfunktion be given.
  • at least one section of the driven gear wheel acting as anti-rotation element can engage in a recess of the rim of the housing element.
  • the driven-side anti-rotation contour can be formed either by a shaft or disk connected to the output gear or by the output gear itself.
  • the wave gear can be used in particular as a control gear of an electromechanical camshaft adjuster.
  • the wave gear is suitable, for example, as a control gear of a device for varying the compression ratio of an internal combustion engine.
  • the housing element is firmly connected to the engine block of the internal combustion engine, that is reciprocating engine.
  • Industrial applications of the corrugated transmission for example in robots or machine tools, are also possible.
  • the low weight and the low mass moment of inertia of the wave gear according to the invention are advantageous.
  • a shorter assembly time can be achieved by eliminating a screw connection on the housing.
  • the geometrically simple design of the drive gear even in an inboard version
  • Fig. 5 is designed as a sprocket housing element of the wave gear.
  • a generally designated by the reference numeral 1 wave gear comes as a reduction gear of an electromechanical camshaft adjuster an internal combustion engine used.
  • a housing element 2 of the wave gear 1 functions as a drive element and has a toothing 3, which enables a drive via a chain, not shown.
  • the housing element 2 could be driven for example via a belt drive.
  • the housing element 2 is a sintered part.
  • the housing element 2 is fixedly connected to a drive gear 4, wherein this compound is designed as a press fit 5 with additional positive engagement.
  • An inner peripheral surface 6 of the housing element 2 is contacted by the drive gear 4 in a force-locking manner.
  • the driven gear 7 is fixedly connected to a driven-side element 8 and a shaft which may be the camshaft to be adjusted or a member which is non-rotatably connected to the camshaft.
  • the driven-side element 8 encloses an inner cylindrical portion 9 of the output gear 7.
  • the drive gear 4 as well as the output gear 7 is formed as an internally toothed, inherently rigid transmission element. With both internally toothed gears 4,
  • a wave generator 11 is provided for deforming the flexible ring 10, which comprises a roller bearing 12, namely ball bearing.
  • an inner ring 16 of the rolling bearing 12 is driven via a compensating coupling 13.
  • a likewise limited offset between the Oldhamefficiency 15 and the inner ring 16 is possible, so that a total of a radial offset between the shaft of the electric motor and the inner ring 16 is compensated.
  • the inner ring 16 has a non-circular, elliptical outer contour, so that rolling elements 17, that is, balls that roll on the inner ring 16, have a nachgiebi- gene outer ring 18 of the rolling bearing 12 permanently force into a non-circular shape.
  • the flexible transmission element 10 immediately surrounds the outer ring 18 without being firmly connected thereto. Due to the non-circular shape of the outer ring 18, the flexible transmission element 10 is brought into engagement with the internal toothing of the toothed wheels 4, 7 only at two diametrically opposite points. During a rotation of the inner ring 16, the two engagement regions between the flex ring 10 on the one hand and the gears 4, 7 on the other hand move.
  • the anti-rotation contours 19 of the housing element 2 are located on the inner edge of an annular stop surface 20, which is formed by the housing element 2.
  • the output gear 7 is received with axial clearance between the annular stop surface 20 and the drive gear 4.
  • the output gearwheel 7 describes an outer cylindrical section 21 and a non-closed bottom 22 adjoining thereto, which lies in a plane normal to the rotation axis of the driven gearwheel 7, that is to say the center axis of the wave gear 1 and at its inner edge in FIG Form of the inner cylindrical portion 9 expires.
  • the outer region of the bottom 22 is supported by the annular abutment surface 20 of the housing element 2 in the axial direction.
  • the output gear 7 is supported by the drive gear 4.
  • a cylindrical section of the drive gearwheel 4 held in a non-positive manner in the housing element 2 is designated by 23.
  • To the cylindrical portion 23 includes a board 24, which is directed radially inward and thus in principle is arranged mirror-inverted to the bottom 22.
  • a pin 26 can be seen, which engages in a groove 27 in the inner peripheral surface of the housing element 2.
  • the drive gear 4 including the pin 26 is slid into the housing element 2, which can be seen that the
  • Pin 26 a stop surface 28 which is located on an end face of the housing member 2 and a bottom of the groove 27, contacted. In the radial direction, in contrast, there remains a gap Sp between the pin 26 and a wall of the groove 27.
  • the groove 27 is in the same angular range of the housing element 2 in which there is also an anti-rotation element 29 which is formed by the housing element 2 and the anti-rotation contour 19 is attributable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un engrenage à ondes de déformation, destiné en particulier à un régulateur d'arbre à cames électromécanique, qui comprend un élément de boîtier (2) qui est relié solidairement en rotation à un engrenage d'entraînement (4) à denture intérieure qui s'engrène avec un élément de transmission flexible (10) à denture extérieure. L'engrenage d'entraînement (4) est inséré à force dans l'élément de boîtier (2). Un blocage par complémentarité de formes est réalisé en même temps, pour empêcher l'engrenage d'entraînement (4) et l'élément de boîtier (2) de tourner l'un par l'autre.
PCT/DE2019/100278 2018-03-26 2019-03-25 Engrenage à ondes de déformation WO2019185088A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019001615.6T DE112019001615A5 (de) 2018-03-26 2019-03-25 Wellgetriebe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018107067.5 2018-03-26
DE102018107067.5A DE102018107067A1 (de) 2018-03-26 2018-03-26 Wellgetriebe

Publications (1)

Publication Number Publication Date
WO2019185088A1 true WO2019185088A1 (fr) 2019-10-03

Family

ID=66102343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100278 WO2019185088A1 (fr) 2018-03-26 2019-03-25 Engrenage à ondes de déformation

Country Status (2)

Country Link
DE (2) DE102018107067A1 (fr)
WO (1) WO2019185088A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117628142A (zh) * 2024-01-26 2024-03-01 广东极亚精机科技有限公司 谐波齿轮装置及其制造方法以及机器人用关节装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022102529A1 (de) 2022-02-03 2023-08-03 Schaeffler Technologies AG & Co. KG Wellgetriebe, Set aus Wellgetriebekomponenten und Verfahren zur Montage eines Abtriebselementes eines Wellgetriebes

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520555A1 (de) * 1995-06-06 1996-12-12 Fickelscher Kurt G Dipl Ing Elastische Steckwellenverbindung für Planetengetriebe mit flexiblem Planetenrad
US20150292400A1 (en) * 2013-01-09 2015-10-15 Nissan Motor Co., Ltd. Drive device
DE102014207631A1 (de) 2014-04-23 2015-11-12 Schaeffler Technologies AG & Co. KG Nockenwellenversteller mit zusätzlichem Formschluss zwischen drehmomentübertragenden Teilen
DE102015223419A1 (de) 2015-11-26 2016-11-10 Schaeffler Technologies AG & Co. KG Wellgetriebe
DE102015210707B3 (de) * 2015-06-11 2016-12-01 Schaeffler Technologies AG & Co. KG Drei-Wellengetriebe
DE102015222831A1 (de) * 2015-11-19 2017-05-24 Schaeffler Technologies AG & Co. KG Verstelleinrichtung einer Brennkraftmaschine
DE102016201536A1 (de) 2016-02-02 2017-08-03 Schaeffler Technologies AG & Co. KG Wellgetriebe
DE102016219076A1 (de) 2016-09-30 2017-08-17 Schaeffler Technologies AG & Co. KG Wellgetriebe
DE102016217051A1 (de) 2016-09-08 2017-08-17 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
WO2017194045A1 (fr) * 2016-05-09 2017-11-16 Schaeffler Technologies AG & Co. KG Réducteur elliptique
DE102016223474B3 (de) 2016-11-25 2018-03-08 Schaeffler Technologies AG & Co. KG Verstellgetriebevorrichtung für eine Welle sowie Fahrzeug mit der Verstellgetriebevorrichtung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520555A1 (de) * 1995-06-06 1996-12-12 Fickelscher Kurt G Dipl Ing Elastische Steckwellenverbindung für Planetengetriebe mit flexiblem Planetenrad
US20150292400A1 (en) * 2013-01-09 2015-10-15 Nissan Motor Co., Ltd. Drive device
DE102014207631A1 (de) 2014-04-23 2015-11-12 Schaeffler Technologies AG & Co. KG Nockenwellenversteller mit zusätzlichem Formschluss zwischen drehmomentübertragenden Teilen
DE102015210707B3 (de) * 2015-06-11 2016-12-01 Schaeffler Technologies AG & Co. KG Drei-Wellengetriebe
DE102015222831A1 (de) * 2015-11-19 2017-05-24 Schaeffler Technologies AG & Co. KG Verstelleinrichtung einer Brennkraftmaschine
DE102015223419A1 (de) 2015-11-26 2016-11-10 Schaeffler Technologies AG & Co. KG Wellgetriebe
DE102016201536A1 (de) 2016-02-02 2017-08-03 Schaeffler Technologies AG & Co. KG Wellgetriebe
WO2017194045A1 (fr) * 2016-05-09 2017-11-16 Schaeffler Technologies AG & Co. KG Réducteur elliptique
DE102016217051A1 (de) 2016-09-08 2017-08-17 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
DE102016219076A1 (de) 2016-09-30 2017-08-17 Schaeffler Technologies AG & Co. KG Wellgetriebe
DE102016223474B3 (de) 2016-11-25 2018-03-08 Schaeffler Technologies AG & Co. KG Verstellgetriebevorrichtung für eine Welle sowie Fahrzeug mit der Verstellgetriebevorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117628142A (zh) * 2024-01-26 2024-03-01 广东极亚精机科技有限公司 谐波齿轮装置及其制造方法以及机器人用关节装置
CN117628142B (zh) * 2024-01-26 2024-04-19 广东极亚精机科技有限公司 谐波齿轮装置及其制造方法以及机器人用关节装置

Also Published As

Publication number Publication date
DE102018107067A1 (de) 2019-05-16
DE112019001615A5 (de) 2020-12-10

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