DE102009017121A1 - Toothed belt wheel for electromechanical steering element of motor vehicle, has projections held in slots in circumferential direction by auxiliary material in tolerance-free manner, where material is arranged between projections and slots - Google Patents
Toothed belt wheel for electromechanical steering element of motor vehicle, has projections held in slots in circumferential direction by auxiliary material in tolerance-free manner, where material is arranged between projections and slots Download PDFInfo
- Publication number
- DE102009017121A1 DE102009017121A1 DE102009017121A DE102009017121A DE102009017121A1 DE 102009017121 A1 DE102009017121 A1 DE 102009017121A1 DE 102009017121 A DE102009017121 A DE 102009017121A DE 102009017121 A DE102009017121 A DE 102009017121A DE 102009017121 A1 DE102009017121 A1 DE 102009017121A1
- Authority
- DE
- Germany
- Prior art keywords
- toothed belt
- belt wheel
- ball screw
- screw nut
- projections
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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
- 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
- F16H55/171—Toothed belt pulleys
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- 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
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
-
- 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
- F16H55/32—Friction members
- F16H55/36—Pulleys
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Abstract
Description
Die Erfindung bezieht sich auf das Gebiet der elektromechanischen Kraftfahrzeuglenkungen und insbesondere auf ein Zahnriemenrad mit einer Kugelgewindemutter. Weiterhin bezieht sich die Erfindung auf ein Verfahren zur Herstellung eines Zahnriemenrads mit Kugelgewindemutter.The The invention relates to the field of electromechanical vehicle steering systems and more particularly, to a timing belt pulley having a ball screw nut. Furthermore, the invention relates to a process for the preparation a toothed belt wheel with ball screw nut.
In elektromechanischen Lenkungen wird das Antriebsmoment eines Elektromotors mittels eines Zahnriementriebs auf eine Kugelgewindemutter übertragen, um die Rotationsbewegung des Motors in eine translatorische Zahnstangenbewegung umzusetzen. An den Zahnriementrieb werden hohe Ansprüche in Bezug auf die Verzahnungsgenauigkeit der Zahnriemenräder sowie auf den Achsabstand der Zahnriemenräder gestellt.In Electromechanical steering becomes the driving torque of an electric motor transmitted to a ball screw nut by means of a toothed belt drive, about the rotational movement of the motor in a translatory rack movement implement. At the toothed belt drive are demanding in relation to the toothing accuracy of the toothed belt wheels as well as the center distance of the toothed belt wheels.
In
der Praxis kommen vor allem gesinterte Zahnriemenräder
zum Einsatz. Diese lassen sich mit hoher Genauigkeit herstellen.
Ein Beispiel für ein derartiges Zahnriemenrad ist aus der
Zur
Verringerung des Trägheitsmoments ist aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Einheit aus Zahnriemenrad und Kugelgewindemutter zu schaffen, die sich mit geringem Fertigungsaufwand herstellen lässt.Of the Invention is based on the object, a unit of toothed belt and ball screw nut to create, with low production costs can be produced.
Diese Aufgabe wird durch ein Zahnriemenrad mit Kugelgewindemutter gemäß Patentanspruch 1 gelöst.These The object is achieved by a toothed belt wheel with ball screw nut according to claim 1 solved.
Erfindungsgemäß sind zwischen dem Außenumfang der Kugelgewindemutter und dem Zahnriemenrad ineinandergreifende Nuten und Vorsprünge vorgesehen. Zudem sind die Vorsprünge in den Nuten durch ein Zusatzmaterial, das zwischen den Vorsprüngen und den Nuten angeordnet ist, in Umfangsrichtung spielfrei aufgenommen.According to the invention between the outer circumference of the ball screw nut and the Belt pulley intermeshing grooves and projections intended. In addition, the projections in the grooves are through a filler material between the protrusions and the Grooves is arranged, received in the circumferential direction backlash.
Die miteinander zu verbindenden Bauteile können im Vergleich zu herkömmlichen Zahnriemenrädern und Kugelgewindemuttern mit geringeren Genauigkeitsanforderungen kostengünstiger gefertigt werden, da sich durch das Zusatzmaterial ein Toleranzausgleich sehr einfach bewerkstelligen lässt. Das Zusatzmaterial bewirkt gleichzeitig eine Axialsicherung der Bauteile untereinander. Separate toleranzausgleichende Verbindungsmittel sowie separate axiale Befestigungsmittel werden nicht benötigt. Der Montageaufwand bleibt hierdurch sehr klein.The Compared to each other components can be compared to conventional timing belt pulleys and ball screw nuts less expensive with lower accuracy requirements be manufactured, as a tolerance compensation by the additional material very easy to do. The additional material simultaneously causes an axial securing of the components with each other. Separate tolerance compensating connecting means as well as separate axial fasteners are not needed. The installation effort this keeps it very small.
Bei einem Versagen des Zusatzmittels ist gleichwohl eine Kopplung durch einen Formschluss zwischen den Nuten und den Vorsprüngen gewährleistet, so dass die Grundfunktion der Drehmomentübertragung aufrechterhalten wird.at Nevertheless, a failure of the additive is a coupling through a positive connection between the grooves and the projections guaranteed, so the basic function of torque transmission is maintained.
Vorteilhafte Ausgestaltungen der Erfindung sind in weiteren Patentansprüchen angegeben.advantageous Embodiments of the invention are in further claims specified.
Das Zusatzmaterial kann beispielsweise ein ausgehärteter Kleber sein, der bei der Montage des Zahnriemenrads an der Kugelgewindemutter eingebracht wird.The Additional material may for example be a cured adhesive be that when mounting the timing belt pulley to the ball screw nut is introduced.
Alternativ kann das Zusatzmaterial ein an die Vorsprünge des Zahnriemenrads angespritzter Elastomer sein.alternative The additional material can be attached to the projections of the toothed belt wheel be molded elastomer.
Die oben genannte Aufgabe wird weiterhin durch ein Verfahren zur Herstellung einer Baueinheit aus einem Zahnriemenrad und einer Kugelgewindemutter gelöst, bei dem ein Zahnriemenrad aus Kunststoff mit an seinem Innenumfang ausgebildeten Vorsprüngen durch Spritzguß hergestellt wird, eine Kugelgewindemutter mit an ihrem Außenumfang ausgebildeten Nuten hergestellt wird, an den Vorsprüngen und/oder den Nuten ein Kleber aufgebracht wird, das Zahnriemenrad und die Kugelgewindemutter axial zusammengefügt werden, und der Kleber ausgehärtet wird.The The above object is further achieved by a method for the production a unit consisting of a toothed belt wheel and a ball screw nut solved, in which a toothed belt made of plastic with formed on its inner circumference projections produced by injection molding is a ball screw nut with on its outer circumference formed grooves is made on the projections and / or the grooves an adhesive is applied, the toothed belt and the Ball nut are joined together axially, and the Glue is cured.
Kommt anstelle des Klebers ein Elastomer als Zusatzmaterial zum Einsatz, wird dieser an die in Umfangsrichtung weisenden Flanken der Vorsprünge angespritzt. Hernach werden das Zahnriemenrad und die Kugelgewindemutter axial zusammengefügt.comes instead of the adhesive, an elastomer is used as additional material, this is to the circumferentially facing flanks of the projections molded. Afterwards the toothed belt wheel and the ball screw nut become joined together axially.
Nachfolgend wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Die Zeichnung zeigt in:following the invention will be described with reference to embodiments shown in the drawings explained in more detail. The drawing shows in:
Die
in den Figuren dargestellten Ausführungsbeispiele zeigen
jeweils eine Baueinheit aus einem Zahnriemenrad
Wie
Die
zugehörige Aufnahmeöffnung
Der
Außenumfang
Ein
Toleranzausgleich im Bereich der Vorsprünge
Bei
dem ersten Ausführungsbeispiel, das in
Der
Kleber
Bei
der Herstellung der Baueinheit nach
Auch
hierbei sind keine eigens zu montierenden Verbindungselemente erforderlich.
Wie bei dem ersten Ausführungsbeispiel wird bei einem Versagen des
Zusatzmaterials
In
beiden Fällen ermöglich das aus Kunststoff, beispielsweise
Vyncolyt, gefertigte Zahnriemenrad
Gegebenenfalls
kann an das Zahnriemenrad
In Abwandlung der vorstehend erläuterten Ausführungsbeispiele ist es ferner möglich, alternativ zu der Nut in der Kugelgewindemutter eine Nut am Zahnriemenrad vorzusehen, in die dann entsprechende Vorsprünge der Kugelgewindemutter greifen. Weiterhin ist es möglich, die Vorsprünge der Kugelgewindemutter durch ein gesondertes Teil darzustellen, das z. B. zwischen dem Zahnriemenrad und der Kugelgewindemutter eingegliedert ist.In Modification of the above-described embodiments it is also possible, alternatively to the groove in the ball screw nut to provide a groove on the belt pulley, in which then appropriate Protrusions of the ball screw nut grip. Furthermore is it possible, the projections of the ball screw nut represented by a separate part, the z. B. between the Timing belt and the ball screw nut is incorporated.
Die Erfindung wurde vorstehend anhand von Ausführungsbeispielen näher erläutert. Sie ist jedoch nicht auf diese beschränkt, sondern umfasst alle durch die Patentansprüche definierten Ausgestaltungen.The The invention has been described above with reference to exemplary embodiments explained in more detail. However, she is not on this but all encompasses the claims defined embodiments.
- 11
- Zahnriemenradtoothed belt
- 22
- KugelgewindemutterBall screw nut
- 33
- Verzahnunggearing
- 44
- Nabenabschnitthub portion
- 55
- Öffnungopening
- 66
- Vorsprunghead Start
- 77
- Außenumfangouter periphery
- 88th
- Nutgroove
- 99
- Flanke des Vorsprungsflank of the projection
- 1010
- Flanke der Nutflank the groove
- 1111
- Zusatzmaterialadditional material
- 1212
- KleberGlue
- 1313
- Elastomerelastomer
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102005018581 A1 [0003] - DE 102005018581 A1 [0003]
- - DE 102006059946 A1 [0004, 0030] DE 102006059946 A1 [0004, 0030]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009017121A DE102009017121A1 (en) | 2009-04-15 | 2009-04-15 | Toothed belt wheel for electromechanical steering element of motor vehicle, has projections held in slots in circumferential direction by auxiliary material in tolerance-free manner, where material is arranged between projections and slots |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009017121A DE102009017121A1 (en) | 2009-04-15 | 2009-04-15 | Toothed belt wheel for electromechanical steering element of motor vehicle, has projections held in slots in circumferential direction by auxiliary material in tolerance-free manner, where material is arranged between projections and slots |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009017121A1 true DE102009017121A1 (en) | 2010-10-28 |
Family
ID=42779551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009017121A Withdrawn DE102009017121A1 (en) | 2009-04-15 | 2009-04-15 | Toothed belt wheel for electromechanical steering element of motor vehicle, has projections held in slots in circumferential direction by auxiliary material in tolerance-free manner, where material is arranged between projections and slots |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009017121A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012020401A1 (en) * | 2012-10-18 | 2014-04-24 | Volkswagen Aktiengesellschaft | Belt wheel for clearance-free excess assembly on ball threaded nut used in ball threaded drive of steering of motor car, has bar formed between strippings and hub region and including linear extension smaller than extension of openings |
WO2015074828A1 (en) * | 2013-11-21 | 2015-05-28 | Trw Automotive Gmbh | Coupling assembly and belt drive |
DE102018201630B4 (en) | 2018-02-02 | 2023-01-19 | Zf Friedrichshafen Ag | Pulley for a toothed belt drive of a steer-by-wire steering and method for manufacturing the pulley and use of the pulley |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040099472A1 (en) * | 2002-11-22 | 2004-05-27 | Johnson Oliver G. | Ball-screw assembly having an isolator member |
DE102005018581A1 (en) | 2005-04-21 | 2006-10-26 | Volkswagen Ag | Pulley for serrated belt, comprising shoulder ring with toothed inner surface |
DE102006059946A1 (en) | 2005-12-22 | 2007-07-05 | Volkswagen Ag | Toothed belt wheel for motor vehicle, has hub base body with drum-shaped section and toothing made up of thermosetting plastic which lies at outer circumference of drum-shaped section |
DE102007049114A1 (en) * | 2007-10-12 | 2009-04-16 | Volkswagen Ag | Toothed belt wheel for transferring drive moment in electromechanical steering of motor vehicle, has inner wall sections for radial arrangement against outer periphery sections of ball screw nut, where wheel is made of plastic |
DE102008014402A1 (en) * | 2008-03-14 | 2009-09-17 | Volkswagen Ag | Electromechanical steering gear for use in motor vehicle, has gear rack, electric motor, and gearbox, where gearbox has belt drive with two belt pulleys and belt for coupling belt pulleys |
-
2009
- 2009-04-15 DE DE102009017121A patent/DE102009017121A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040099472A1 (en) * | 2002-11-22 | 2004-05-27 | Johnson Oliver G. | Ball-screw assembly having an isolator member |
DE102005018581A1 (en) | 2005-04-21 | 2006-10-26 | Volkswagen Ag | Pulley for serrated belt, comprising shoulder ring with toothed inner surface |
DE102006059946A1 (en) | 2005-12-22 | 2007-07-05 | Volkswagen Ag | Toothed belt wheel for motor vehicle, has hub base body with drum-shaped section and toothing made up of thermosetting plastic which lies at outer circumference of drum-shaped section |
DE102007049114A1 (en) * | 2007-10-12 | 2009-04-16 | Volkswagen Ag | Toothed belt wheel for transferring drive moment in electromechanical steering of motor vehicle, has inner wall sections for radial arrangement against outer periphery sections of ball screw nut, where wheel is made of plastic |
DE102008014402A1 (en) * | 2008-03-14 | 2009-09-17 | Volkswagen Ag | Electromechanical steering gear for use in motor vehicle, has gear rack, electric motor, and gearbox, where gearbox has belt drive with two belt pulleys and belt for coupling belt pulleys |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012020401A1 (en) * | 2012-10-18 | 2014-04-24 | Volkswagen Aktiengesellschaft | Belt wheel for clearance-free excess assembly on ball threaded nut used in ball threaded drive of steering of motor car, has bar formed between strippings and hub region and including linear extension smaller than extension of openings |
WO2015074828A1 (en) * | 2013-11-21 | 2015-05-28 | Trw Automotive Gmbh | Coupling assembly and belt drive |
DE102018201630B4 (en) | 2018-02-02 | 2023-01-19 | Zf Friedrichshafen Ag | Pulley for a toothed belt drive of a steer-by-wire steering and method for manufacturing the pulley and use of the pulley |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |