WO2008052865A1 - Kinematic connection between a shift shaft and an auxiliary mass - Google Patents

Kinematic connection between a shift shaft and an auxiliary mass Download PDF

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Publication number
WO2008052865A1
WO2008052865A1 PCT/EP2007/060744 EP2007060744W WO2008052865A1 WO 2008052865 A1 WO2008052865 A1 WO 2008052865A1 EP 2007060744 W EP2007060744 W EP 2007060744W WO 2008052865 A1 WO2008052865 A1 WO 2008052865A1
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WO
WIPO (PCT)
Prior art keywords
toothed
additional mass
switching device
switching
switching shaft
Prior art date
Application number
PCT/EP2007/060744
Other languages
German (de)
French (fr)
Inventor
Klaus Krämer
Jochen LÖFFELMANN
Thomas Mehlis
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 WO2008052865A1 publication Critical patent/WO2008052865A1/en

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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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/24—Providing feel, e.g. to enable selection
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/24—Providing feel, e.g. to enable selection
    • F16H2061/246—Additional mass or weight on shift linkage for improving feel
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms

Definitions

  • the invention relates to a switching device with a rotatably and axially displaceably arranged switching shaft and with at least one additional mass, wherein the switching shaft and the additional mass are at least pivotally mounted about mutually separate pivot axes and wherein the additional mass is mitigably coupled to the switching shaft.
  • the object of the invention is therefore to provide a switching device in which the switching shaft is largely decoupled from negative influences of the driving on the additional mass.
  • This object is achieved according to the characterizing part of claim 1, characterized in that the additional mass is coupled mittig via at least one Umschlingungsmitteltrieb with the switching shaft.
  • This wrapping means drive has at least one wrapping means. Strapping means are on tensile or shear loaded chains, link belts or belts. Such wrapping means encompass suitable gear elements such as pulley segments, toothed disc segments or discs with a certain wrap angle in a form or frictional connection. The distance at which the wrapping means engage the corresponding gear elements is greater than the distance between the mutually opposite pivot axes of the additional mass and the switching shaft.
  • the heftbare connection is of low weight, especially when used as a belt wrapper plastic or reinforced plastics and the like.
  • Vibrations are absorbed essentially in the belt.
  • the distance between the pivot axes can be chosen arbitrarily large.
  • the unit is space saving.
  • the geared connection is insensitive to dirt and temperature influences.
  • the geared connection is inexpensive to produce.
  • An embodiment of the invention provides that the belt is a toothed belt. Inward, i. Teeth facing each other engage positively in corresponding counter-teeth on toothed segments or 360 ° full-toothed disks.
  • the pivot axes of the additional mass and the switching shaft are preferably aligned parallel to each other.
  • the switching shaft is in the longitudinal direction of the pivot axis, z. B. for selecting the gears longitudinally displaceable and about the pivot axis, for example, for switching the gears, pivotally.
  • the effect of the additional mass usually begins when panning. If now the shift shaft is displaced along the pivot axis, the influence on the wrapper lift depends on the kinematic connection between the shift shaft and the wrapper lift.
  • the selector shaft is longitudinally movable relative to the Umschlingungshebesch longitudinally movable, that is decoupled in this case from the Umschlingungsmitteltechnisch, longitudinally movable.
  • the longitudinal movement of the shift shaft exerts no influence on the Umschlingungsstofftechnisch in this case.
  • the corresponding switching-shaft-side transmission element is longitudinally displaceably coupled to the switching shaft.
  • the belt is the switching shaft side in longitudinal movements of the shift shaft taken on one side and removed from its ideal position.
  • the ideal position of the belt means speaks a position in which the neutral line of the envelope of the belt is aligned at right angles to both pivot axes.
  • an embodiment of the invention provides that the flanks of the teeth of at least the toothed belt, but also optionally the counter toothing on the transmission component are bulged outward spherically. With such a shape, certain constraining forces, which otherwise act on the toothing when the belt is inclined, are eliminated.
  • FIGS 1 and 2 an embodiment of a switching device according to the invention in a side view and in a sectional view according to II - II, in which the switching shaft and the switching shaft side toothed disk are firmly connected to each other,
  • FIG. 3 shows a section of a toothed belt with teeth which have crowned tooth flanks, for example use in the switching device according to FIGS. 1 and 2, greatly enlarged and not shown to scale,
  • Figures 4 and 5 is a plan view of an embodiment and a sectional view according to IV - IV of this embodiment of a mechanical connection between the switching shaft side toothed disc and the shift shaft in which the toothed disc is not affected by longitudinal movements of the shift shaft.
  • FIGS 1 and 2 show a switching device 1.
  • the switching device is shown in Figure 1 in a side view and in Figure 2 in a plan view.
  • the switching device 1 consists of a switching shaft 2, of two additional masses 3 and a Umschlingungsstofftheb. 4
  • the switching shaft 2 is pivotable by means of a shift lever 6 about the pivot axis 5 of the switching shaft 2 in both directions (Y). Furthermore, the switching shaft 2 along the pivot axis 5 in both directions (Z) is mounted longitudinally displaceable in a housing 7.
  • the additional masses 3 are connected to each other via a lever 9 and pivotally mounted about the common pivot axis 8 either on the housing 7 or at any other stationary to the housing 7 point.
  • the pivot axes 8 and 5 are parallel to the axis.
  • the Umschlingungsheb 4 consists of two toothed discs 10, 1 1 and a toothed belt 12.
  • the toothed wheel 10 is fixedly connected to the switching shaft 2 and the toothed disc 11 is coupled to the lever 9 axially and pivotally.
  • the toothed discs 10, 1 1 have in this case the same number of teeth and thus the same diameter D1 and D2. However, it is also conceivable that the toothed discs have mutually different teeth and thus have different diameters.
  • the teeth 13 of the toothed discs correspond with the geometry of the teeth 14 of the toothed belt 12 such that a force-transmitting positive engagement is ensured.
  • the toothed discs 10, 1 1 are either made of plastic or alternatively of metal.
  • the toothed belt 12 is made of plastic.
  • the width of the teeth of the toothed discs 10 and 1 1 is the width of the belt plus 2 x A.
  • the longitudinal stops are removed by the distances A from the timing belt.
  • the sum of A + A is smaller than the teeth 14 of the toothed belt are wide in the same longitudinal direction.
  • the compulsory effect of the inclination on the toothed belt 12 is further compensated by the fact that the teeth 14 of the toothed belt 12, as shown in FIG. 3, do not have the tooth flanks, which are usually axially parallel to the longitudinal direction, but flanks 20 bulged into the tooth gaps 19 and so on to adjust the tilts by a certain amount.
  • Figures 4 and 5 show an embodiment of a mechanical connection between a switching shaft 21 and a toothed disc 22 in a schematic representation.
  • the switching shaft 21 and the toothed disc 22 are decoupled from each other in longitudinal movements of the switching shaft in the Z direction, ie longitudinally with the pivot axis 5 - in pivoting movements Y about the pivot axis 5, the toothed disc 22 is taken through the shift shaft 21.
  • the switching shaft on at least one positive locking element 23, which corresponds to a positive-locking element 24 on the toothed disc 22.
  • Such form-fitting elements 23, 24 are, for example, splines which have teeth and longitudinal grooves.
  • the toothed disc 22 is pivotable about the pivot axis 5, but held axially fixed to the housing with a means for axial securing 25. In longitudinal displacements of the switching shaft 21 along the pivot axis 5, this is relative to the axial toothed disc 22 axially held toothed disc 22 move. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The invention relates to a shift device (1) having a shift shaft (2, 21) which is arranged in a rotationally and axially movable manner and having at least one auxiliary mass (3), wherein the shift shaft (2, 21) and the auxiliary mass (3) are mounted so as to be at least pivotable about separate pivot axes (5, 8) from one another and wherein the auxiliary mass (3) is kinematically coupled to the shift shaft (2, 21).

Description

Bezeichnung der Erfindung Name of the invention
Getriebliche Verbindung zwischen einer Schaltwelle und einer ZusatzmasseTransmission connection between a selector shaft and an additional mass
Beschreibungdescription
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Schaltvorrichtung mit einer dreh- und axial verschiebbar angeordneten Schaltwelle und mit wenigstens einer Zusatzmasse, wobei die Schaltwelle und die Zusatzmasse um zueinander separate Schwenkachsen wenigstens schwenkbar gelagert sind und wobei die Zusatzmasse mit der Schaltwelle getheblich gekoppelt ist.The invention relates to a switching device with a rotatably and axially displaceably arranged switching shaft and with at least one additional mass, wherein the switching shaft and the additional mass are at least pivotally mounted about mutually separate pivot axes and wherein the additional mass is mitigably coupled to the switching shaft.
Hintergrund der ErfindungBackground of the invention
Eine derartige getriebliche Verbindung ist in DE 195 23 141 mit ihren Vorteilen beschrieben. Der wesentliche Vorteil einer derartigen Anordnung ist, dass die Zusatzmasse unabhängig von der Schaltwelle gelagert ist und somit die Schaltwelle sowohl frei von dem Gewicht der Zusatzmasse als auch weitestge- hend frei von den Massenkräften aus Erschütterungen der Zusatzmasse während des Fahrbetriebs der Zusatzmasse ist. Mit einer DE 195 23 141 A1 be- schhebenen Anordnung kann jedoch der Einfluss aus Schwingungen, Erschütterungen usw. im Fahrbetrieb auf die Schaltwelle und deren Übertragung auf den Schalthebeln aufgrund der ineinander greifenden metallischen Verzahnung nicht völlig ausgeschlossen werden. Zusammenfassung der ErfindungSuch a geared connection is described in DE 195 23 141 with its advantages. The essential advantage of such an arrangement is that the additional mass is mounted independently of the shift shaft and thus the shift shaft is both free of the weight of the additional mass as well as largely free of the inertial forces from vibrations of the additional mass during the driving operation of the additional mass. However, with an arrangement disclosed in DE 195 23 141 A1, the influence of vibrations, vibrations, etc., when driving on the selector shaft and its transmission on the selector levers can not be completely ruled out due to the intermeshing metallic toothing. Summary of the invention
Die Aufgabe der Erfindung ist es daher, eine Schaltvorrichtung zu schaffen, in der die Schaltwelle weitestgehend von negativen Einflüssen des Fahrbetriebs auf die Zusatzmasse entkoppelt ist.The object of the invention is therefore to provide a switching device in which the switching shaft is largely decoupled from negative influences of the driving on the additional mass.
Diese Aufgabe ist nach dem kennzeichnenden Teil des Anspruches 1 dadurch gelöst, dass die Zusatzmasse über wenigstens einen Umschlingungsmitteltrieb mit der Schaltwelle getheblich gekoppelt ist. Dieser Umschlingungsmitteltrieb weist zumindest ein Umschlingungsmittel auf. Umschlingungsmittel sind auf zug- oder schubbelastete Ketten, Gliederbänder oder Riemen. Derartige Umschlingungsmittel umgreifen geeignete Getriebeelemente wie Riemenscheibensegmente, Zahnscheibensegmente oder Scheiben mit einem gewissen Um- schlingungswinkel in Form- oder Reibschluss. Der Abstand, an dem die Um- schlingungsmittel an den entsprechenden Getriebeelementen angreifen, ist größer als der Abstand zwischen den einander gegenüberliegenden Schwenkachsen der Zusatzmasse und der Schaltwelle.This object is achieved according to the characterizing part of claim 1, characterized in that the additional mass is coupled mittig via at least one Umschlingungsmitteltrieb with the switching shaft. This wrapping means drive has at least one wrapping means. Strapping means are on tensile or shear loaded chains, link belts or belts. Such wrapping means encompass suitable gear elements such as pulley segments, toothed disc segments or discs with a certain wrap angle in a form or frictional connection. The distance at which the wrapping means engage the corresponding gear elements is greater than the distance between the mutually opposite pivot axes of the additional mass and the switching shaft.
Die gethebliche Verbindung mittels eines wenigstens eines Umschlingungsmit- tels ist gegenüber dem Stand der Technik mit starren getheblichen Verbindungen aus folgenden Gründen von Vorteil:The significant connection by means of at least one belt means is advantageous over the prior art with rigid, heavy connections for the following reasons:
Über den Umschlingungsdurchmesser der Getriebeelemente an Schaltwelle und Zusatzmasse sind durch Wahl geeigneter Scheiben bzw. Segmente anwendungsspezifisch geeignete Übersetzungsverhältnisse variierbar.About the Umschlingungsdurchmesser the gear elements to shift shaft and additional mass application-specific suitable gear ratios can be varied by selecting suitable discs or segments.
Die gethebliche Verbindung ist von geringem Gewicht, insbesondere dann, wenn als Umschlingungsmittel Riemen aus Kunststoff oder verstärkten Kunststoffen und ähnlichem eingesetzt werden.The heftbare connection is of low weight, especially when used as a belt wrapper plastic or reinforced plastics and the like.
Schwingungen werden im wesentlichen im Umschlingungsmittel absorbiert. Der Abstand zwischen den Schwenkachsen kann beliebig groß gewählt werden.Vibrations are absorbed essentially in the belt. The distance between the pivot axes can be chosen arbitrarily large.
- Die Baueinheit ist platzsparend.- The unit is space saving.
Die getriebliche Verbindung ist gegen Schmutz und Temperatureinflüsse unempfindlich.The geared connection is insensitive to dirt and temperature influences.
- Die getriebliche Verbindung ist kostengünstig herstellbar.- The geared connection is inexpensive to produce.
Eine Ausgestaltung der Erfindung sieht vor, dass das Umschlingungsmittel ein Zahnriemen ist. Nach innen gerichtete, d.h. aufeinander zugerichtete Zähne greifen in entsprechende Gegenverzahnungen an Zahnsegmenten bzw. 360°- Vollzahnscheiben formschlüssig ein.An embodiment of the invention provides that the belt is a toothed belt. Inward, i. Teeth facing each other engage positively in corresponding counter-teeth on toothed segments or 360 ° full-toothed disks.
Die Schwenkachsen der Zusatzmasse und der Schaltwelle sind bevorzugt zueinander parallel ausgerichtet. Die Schaltwelle ist in Längsrichtung der Schwenkachse, z. B. zum Wählen der Gänge längsverschiebbar und um die Schwenkachse, beispielsweise zum Schalten der Gänge, schwenkbar. Die Wirkung der Zusatzmasse setzt in der Regel beim Schwenken ein. Wird nun die Schaltwelle längs der Schwenkachse verschoben, ist der Einfluss auf den Um- schlingungsmitteltheb von der kinematischen Verbindung zwischen der Schaltwelle und dem Umschlingungsmitteltheb abhängig.The pivot axes of the additional mass and the switching shaft are preferably aligned parallel to each other. The switching shaft is in the longitudinal direction of the pivot axis, z. B. for selecting the gears longitudinally displaceable and about the pivot axis, for example, for switching the gears, pivotally. The effect of the additional mass usually begins when panning. If now the shift shaft is displaced along the pivot axis, the influence on the wrapper lift depends on the kinematic connection between the shift shaft and the wrapper lift.
Es gibt Anordnungen, bei denen die Schaltwelle relativ zum Umschlingungsmitteltheb längsbeweglich, also in diesem Fall von dem Umschlingungsmitteltrieb entkoppelt, längsbeweglich ist. Die Längsbewegung der Schaltwelle übt in diesem Fall keinen Einfluss auf den Umschlingungsmitteltrieb aus. In anderen Fäl- len ist das entsprechende schaltwellenseitige Getriebeelement längsverschiebbar fest mit der Schaltwelle gekoppelt. In diesem Fall wird der Riemen schalt- wellenseitig bei Längsbewegungen von der Schaltwelle einseitig mitgenommen und aus seiner Ideallage entfernt. Die Ideallage des Umschlingungsmittel ent- spricht einer Lage, in der die Neutrallinie der Hüllkurve des Umschlingungsmit- tels rechtwinklig zu beiden Schwenkachsen ausgerichtet ist. Für diesen Fall sieht eine Ausgestaltung der Erfindung vor, dass die Flanken der Zähne zumindest des Zahnriemens, aber auch wahlweise der Gegenverzahnung am Getriebebauteil nach außen ballig gewölbt sind. Mit einer derartigen Form sind gewisse Zwangskräfte, die bei einer Schrägstellung des Riemens ansonsten auf die Verzahnung wirken, eliminiert.There are arrangements in which the selector shaft is longitudinally movable relative to the Umschlingungshebesch longitudinally movable, that is decoupled in this case from the Umschlingungsmitteltrieb, longitudinally movable. The longitudinal movement of the shift shaft exerts no influence on the Umschlingungsmitteltrieb in this case. In other cases, the corresponding switching-shaft-side transmission element is longitudinally displaceably coupled to the switching shaft. In this case, the belt is the switching shaft side in longitudinal movements of the shift shaft taken on one side and removed from its ideal position. The ideal position of the belt means speaks a position in which the neutral line of the envelope of the belt is aligned at right angles to both pivot axes. For this case, an embodiment of the invention provides that the flanks of the teeth of at least the toothed belt, but also optionally the counter toothing on the transmission component are bulged outward spherically. With such a shape, certain constraining forces, which otherwise act on the toothing when the belt is inclined, are eliminated.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert. Es zeigen:The invention will be explained in more detail with reference to embodiments. Show it:
Figuren 1 und 2 ein Ausführungsbeispiel einer erfindungsgemäßen Schaltvorrichtung in einer Seitenansicht und in einer Schnittdarstellung nach Il - II, bei der die Schaltwelle und die schalt- wellenseitige Zahnscheibe fest miteinander verbunden sind,Figures 1 and 2 an embodiment of a switching device according to the invention in a side view and in a sectional view according to II - II, in which the switching shaft and the switching shaft side toothed disk are firmly connected to each other,
Figur 3 einen Abschnitt eines Zahnriemens mit Zähnen, die ballige Zahnflanken aufweisen, für die beispielsweise Verwendung in der Schaltvorrichtung nach Figur 1 und 2, stark vergrößert und nicht maßstäblich dargestellt,FIG. 3 shows a section of a toothed belt with teeth which have crowned tooth flanks, for example use in the switching device according to FIGS. 1 and 2, greatly enlarged and not shown to scale,
Figuren 4 und 5 die Draufsicht auf ein Ausführungsbeispiel und eine Schnittdarstellung nach IV - IV dieses Ausführungsbeispiels einer mechanischen Verbindung zwischen der schaltwellenseitigen Zahnscheibe und der Schaltwelle, in der die Zahnscheibe von Längsbewegungen der Schaltwelle nicht beeinflusst ist. Ausführliche Beschreibung der ZeichnungenFigures 4 and 5 is a plan view of an embodiment and a sectional view according to IV - IV of this embodiment of a mechanical connection between the switching shaft side toothed disc and the shift shaft in which the toothed disc is not affected by longitudinal movements of the shift shaft. Detailed description of the drawings
Die Figuren 1 und 2 zeigen eine Schaltvorrichtung 1. Die Schaltvorrichtung ist in Figur 1 in einer Seitenansicht und in Figur 2 in einer Draufsicht dargestellt. Die Schaltvorrichtung 1 besteht aus einer Schaltwelle 2, aus zwei Zusatzmassen 3 und aus einem Umschlingungsmitteltheb 4.Figures 1 and 2 show a switching device 1. The switching device is shown in Figure 1 in a side view and in Figure 2 in a plan view. The switching device 1 consists of a switching shaft 2, of two additional masses 3 and a Umschlingungsmitteltheb. 4
Die Schaltwelle 2 ist mittels eines Schalthebels 6 um die Schwenkachse 5 der Schaltwelle 2 in beide Richtungen (Y) schwenkbar. Weiterhin ist die Schaltwelle 2 längs der Schwenkachse 5 in beide Richtungen (Z) längs verschiebbar in einem Gehäuse 7 gelagert.The switching shaft 2 is pivotable by means of a shift lever 6 about the pivot axis 5 of the switching shaft 2 in both directions (Y). Furthermore, the switching shaft 2 along the pivot axis 5 in both directions (Z) is mounted longitudinally displaceable in a housing 7.
Die Zusatzmassen 3 sind über einen Hebel 9 miteinander verbunden und um die gemeinsame Schwenkachse 8 schwenkbar entweder am dem Gehäuse 7 oder an einem beliebigen anderen zu dem Gehäuse 7 ortsfesten Punkt schwenkbar gelagert. Die Schwenkachsen 8 und 5 sind achsparallel.The additional masses 3 are connected to each other via a lever 9 and pivotally mounted about the common pivot axis 8 either on the housing 7 or at any other stationary to the housing 7 point. The pivot axes 8 and 5 are parallel to the axis.
Der Umschlingungsmitteltheb 4 besteht aus zwei Zahnscheiben 10, 1 1 sowie aus einem Zahnriemen 12. Die Zahnscheibe 10 ist mit der Schaltwelle 2 fest verbunden und die Zahnscheibe 11 ist mit dem Hebel 9 axial- und schwenkfest gekoppelt. Die Zahnscheiben 10, 1 1 weisen in diesem Fall die gleiche Anzahl an Zähnen und somit gleiche Durchmesser D1 und D2 auf. Es ist jedoch auch denkbar, dass die Zahnscheiben zueinander verschiedene Zähne haben und somit unterschiedliche Durchmesser aufweisen. Die Zähne 13 der Zahnscheiben korrespondieren mit der Geometrie der Zähne 14 des Zahnriemens 12 derartig, dass ein kraftübertragender formschlüssiger Eingriff abgesichert ist. Die Zahnscheiben 10, 1 1 sind wahlweise aus Kunststoff oder alternativ aus Metall. Der Zahnriemen 12 ist aus Kunststoff.The Umschlingungsheb 4 consists of two toothed discs 10, 1 1 and a toothed belt 12. The toothed wheel 10 is fixedly connected to the switching shaft 2 and the toothed disc 11 is coupled to the lever 9 axially and pivotally. The toothed discs 10, 1 1 have in this case the same number of teeth and thus the same diameter D1 and D2. However, it is also conceivable that the toothed discs have mutually different teeth and thus have different diameters. The teeth 13 of the toothed discs correspond with the geometry of the teeth 14 of the toothed belt 12 such that a force-transmitting positive engagement is ensured. The toothed discs 10, 1 1 are either made of plastic or alternatively of metal. The toothed belt 12 is made of plastic.
Bei Längsbewegungen der Schaltwelle 2 in die Richtungen Z wird die Zahnscheibe 10 mit der Schaltwelle mitgenommen. Die Neutrallinie 15 (Figur 1 ) der Hüllkurve 16 (Figur 2) wird sich aus der in Bild 1 dargestellten Idealstellung (Winkel 90° zwischen Schwenkachsen 5 und 8 und Neutrallinie 15) entfernen und schräg stellen (siehe Beispiel Linie 17). Der Zahnriemen 12 ist in den Schrägstellungen Zwangskräften ausgesetzt und bestrebt, die Idealstellung wieder einzunehmen. Um zu verhindern, dass der Zahnriemen 12 dabei von einer den Zahnscheiben 10 oder 1 1 rutscht, sind diese in beide Längsrichtungen (Z) mit Längsanschlägen 18 versehen. Außerdem sind die Zahnscheiben 11 , 12 mit der jeweiligen Schwenkachse 5 bzw. 8 gleich gerichtete Längsrichtung breiter als die breitesten Zähne in diese Längsrichtung breit sind. Die Breite der Zähne der Zahnscheiben 10 bzw. 1 1 ist die Breite des Riemens zuzüglich 2 x A. Die Längsanschläge sind um die Abstände A von dem Zahnriemen entfernt. Die Summe aus A + A ist kleiner als die Zähne 14 des Zahnriemens in die gleiche Längsrichtung breit sind.In longitudinal movements of the shift shaft 2 in the directions Z, the toothed wheel 10 is taken with the shift shaft. The neutral line 15 (FIG. 1) of the envelope 16 (FIG. 2) will become apparent from the ideal position shown in FIG (Angle 90 ° between swivel axes 5 and 8 and neutral line 15) and tilt (see example line 17). The timing belt 12 is subjected to forced forces in the inclinations and endeavors to take the ideal position again. In order to prevent the toothed belt 12 from slipping from the toothed disks 10 or 11, these are provided with longitudinal stops 18 in both longitudinal directions (Z). In addition, the toothed discs 11, 12 with the respective pivot axis 5 and 8 are the same direction longitudinal direction wider than the widest teeth in this longitudinal direction are wide. The width of the teeth of the toothed discs 10 and 1 1 is the width of the belt plus 2 x A. The longitudinal stops are removed by the distances A from the timing belt. The sum of A + A is smaller than the teeth 14 of the toothed belt are wide in the same longitudinal direction.
Die Zwangswirkung der Schrägstellung auf den Zahnriemen 12 wird weiter da- durch ausgeglichen, dass die Zähne 14 des Zahnriemens 12, wie in Figur 3 dargestellt ist, nicht die üblicherweise zur Längsrichtung achsparallelen Zahnflanken, sondern in die Zahnlücken 19 ausgewölbte Flanken 20 aufweisen und sich so um einen gewissen Betrag den Verkippungen anpassen.The compulsory effect of the inclination on the toothed belt 12 is further compensated by the fact that the teeth 14 of the toothed belt 12, as shown in FIG. 3, do not have the tooth flanks, which are usually axially parallel to the longitudinal direction, but flanks 20 bulged into the tooth gaps 19 and so on to adjust the tilts by a certain amount.
Die Figuren 4 und 5 zeigen ein Ausführungsbeispiel einer mechanischen Verbindung zwischen einer Schaltwelle 21 und einer Zahnscheibe 22 in einer schematischen Darstellung. Die Schaltwelle 21 und die Zahnscheibe 22 sind bei Längsbewegungen der Schaltwelle in Z-Richtung, also längs mit der Schwenkachse 5 voneinander entkoppelt - bei Schwenkbewegungen Y um die Schwenkachse 5 wird die Zahnscheibe 22 jedoch durch die Schaltwelle 21 mitgenommen. Dazu weist die Schaltwelle mindestens ein Formschlusselement 23 auf, das mit einem Formschlusselement 24 an der Zahnscheibe 22 korrespondiert. Derartige Formschlusselemente 23, 24 sind beispielsweise Keilverzahnungen, die Zähne und Längsnuten aufweisen. Die Zahnscheibe 22 ist um die Schwenkachse 5 schwenkbar, jedoch mit einem Mittel zur Axialsicherung 25 axial gehäusefest gehalten. Bei Längsverschiebungen der Schaltwelle 21 längs der Schwenkachse 5 wird diese sich relativ zu der axialen Zahnscheibe 22 axial fest gehaltenen Zahnscheibe 22 bewegen. BezugszahlenlisteFigures 4 and 5 show an embodiment of a mechanical connection between a switching shaft 21 and a toothed disc 22 in a schematic representation. The switching shaft 21 and the toothed disc 22 are decoupled from each other in longitudinal movements of the switching shaft in the Z direction, ie longitudinally with the pivot axis 5 - in pivoting movements Y about the pivot axis 5, the toothed disc 22 is taken through the shift shaft 21. For this purpose, the switching shaft on at least one positive locking element 23, which corresponds to a positive-locking element 24 on the toothed disc 22. Such form-fitting elements 23, 24 are, for example, splines which have teeth and longitudinal grooves. The toothed disc 22 is pivotable about the pivot axis 5, but held axially fixed to the housing with a means for axial securing 25. In longitudinal displacements of the switching shaft 21 along the pivot axis 5, this is relative to the axial toothed disc 22 axially held toothed disc 22 move. LIST OF REFERENCE NUMBERS
1 Schaltvorrichtung1 switching device
2 Schaltwelle2 switching shaft
3 Zusatzmasse3 additional mass
4 Umschlingungsmitteltrieb4 wrapping means drive
5 Schwenkachse5 pivot axis
6 Schalthebel6 shifter
7 Gehäuse7 housing
8 Schwenkachse8 pivot axis
9 Hebel9 levers
10 Zahnscheibe10 toothed disc
11 Zahnscheibe11 toothed disc
12 Zahnriemen12 toothed belts
13 Zahn13 tooth
14 Zahn14 tooth
15 Neutrallinie15 neutral line
16 Hüllkurve16 Envelope
17 Linie17 line
18 Längsanschlag18 longitudinal stop
19 Zahnlücke19 tooth gap
20 Flanke20 flank
21 Schaltwelle21 shift shaft
22 Zahnscheibe22 toothed disc
23 Formschlusselement23 positive locking element
24 Formschlusselement24 positive locking element
25 Mittel zur Axialsicherung 25 means for axial securing

Claims

Patentansprüche claims
1. Schaltvorrichtung (1 ) mit einer dreh- und axial verschiebbar angeordneten Schaltwelle (2, 21 ) und mit wenigstens einer Zusatzmasse (3), wobei die Schaltwelle (2, 21 ) und die Zusatzmasse (3) um zueinander separate Schwenkachsen (5, 8) wenigstens schwenkbar gelagert sind und wobei die Zusatzmasse (3) mit der Schaltwelle (2, 21 ) getheblich gekoppelt ist, dadurch gekennzeichnet, das die Zusatzmasse (3) über wenigstens einen Umschlingungsmitteltheb (4) mit der Schaltwelle (2) getheblich gekoppelt ist, wobei der Umschlingungsmitteltrieb (4) zumindest ein Umschlingungsmittel (26) aufweist.1. Switching device (1) with a rotationally and axially displaceably arranged switching shaft (2, 21) and with at least one additional mass (3), wherein the switching shaft (2, 21) and the additional mass (3) about mutually separate pivot axes (5, 8) are at least pivotally mounted and wherein the additional mass (3) with the switching shaft (2, 21) is significantly coupled, characterized in that the additional mass (3) via at least one Umschlingungsmitteltheb (4) with the switching shaft (2) is significantly coupled , wherein the Umschlingungsmitteltrieb (4) at least one wrapping means (26).
2. Schaltvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Umschlingungsmittel (26) zumindest ein Zahnriemen (12) ist, wobei der Zahnriemen (12) schaltwellenseitig wenigstens eine mit der Schaltwelle (2, 21 ) zumindest zeitweise verdrehfest gekoppelte erste2. Switching device according to claim 1, characterized in that the belt means (26) at least one toothed belt (12), wherein the toothed belt (12) switching shaft side at least one with the switching shaft (2, 21) at least temporarily rotationally coupled first
Zahnscheibe (10, 22) und zusatzmassenseitig eine mit der Zusatzmasse (3) schwenkfest gekoppelte zweite Zahnscheibe (1 1 ) teilweise umschlingt, wobei die Zahnscheiben (10, 1 1 ) ein Zahnprofil aufweisen, welches mit dem Zahnprofil des Zahnriemens (12) im Eingriff form- schlüssig korrespondiert.Toothed wheel (10, 22) and additional mass side with the additional mass (3) pivotally coupled second toothed pulley (1 1) partially wraps, wherein the toothed discs (10, 1 1) have a tooth profile, which with the tooth profile of the toothed belt (12) in engagement corresponds positively.
3. Schaltvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zumindest die in Umfangsrichtung um die Schwenkachse (5, 8) gewandten Flanken (20) des einzelnen der Zähne (14) des Zahnriemens (12) in Richtung der Zahnlücken (19) ballig hervorstehend ausgewölbt sind. 3. Switching device according to claim 2, characterized in that at least in the circumferential direction about the pivot axis (5, 8) facing flanks (20) of the individual of the teeth (14) of the toothed belt (12) in the direction of the tooth gaps (19) convex protruding bulges are.
4. Schaltvorrichtung nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass die Schwenkachsen (5, 8) zueinander parallel sind.4. Switching device according to claim 1, 2 or 3, characterized in that the pivot axes (5, 8) are parallel to each other.
5. Schaltvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass wenigstens eine der Zahnscheiben (10, 1 1 ) in mit der Schwenkachse (5, 8) gleichgerichtete Längsrichtung breiter ist als die breitesten Zähne (14) des Zahnriemens (12) in diese Längsrichtung breit sind.5. Switching device according to claim 2, characterized in that at least one of the toothed discs (10, 1 1) with the pivot axis (5, 8) rectified longitudinal direction is wider than the widest teeth (14) of the toothed belt (12) in this longitudinal direction wide are.
6. Schaltvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass sich wenigstens einer Zahnscheibe (10, 11 ) in wenigstens eine der Längsrichtungen ein Längsanschlag (18) für den Zahnriemen (12) in diese Richtung anschließt, wobei der Längsabstand des Längsanschlages (18) von den Zähnen der Zahnscheibe (13) kleiner ist, als die Zähne (14) des Zahnriemens (12) in gleiche Längsrichtung breit sind. 6. Switching device according to claim 5, characterized in that at least one toothed disc (10, 11) in at least one of the longitudinal directions of a longitudinal stop (18) for the toothed belt (12) in this direction, wherein the longitudinal distance of the longitudinal stop (18) of the teeth of the toothed disc (13) is smaller than the teeth (14) of the toothed belt (12) in the same longitudinal direction are wide.
PCT/EP2007/060744 2006-10-28 2007-10-10 Kinematic connection between a shift shaft and an auxiliary mass WO2008052865A1 (en)

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WO2012019798A1 (en) 2010-08-13 2012-02-16 Schaeffler Technologies Gmbh & Co. Kg Shifting device for a transmission
DE102011089004A1 (en) 2011-12-19 2013-06-20 Schaeffler Technologies AG & Co. KG Switching device for change of transmission in motor vehicle, has additional mass of inertia for equalization of power peaks, where movement of additional mass of inertia is delayed by braking unit
DE102012220999A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device i.e. switching dome, for gear wheel change speed gear of vehicle i.e. motor car, has center part i.e. front-sided cover, including centering unit, where center part positions two of wheels relative to each other
WO2014075673A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies AG & Co. KG Switching device for a gearbox
DE102013223251A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102012220994A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device i.e. switching dome, for gear change-speed gearbox of vehicle, has planet gear connecting additional mass to rotatable switching shaft by gearing, and wheel comprising additional mass formed as flywheel
DE102012220988A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switchgear, particularly switching dome, for gear change transmission of vehicle, has rotatable switching shaft and damper unit for equalization of force peaks, where damper unit is arranged on switching shaft
DE102012220998A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for gear wheel change speed gear of vehicle e.g. motor car, has planetary gear that binds additional mass in transmission to switching shaft and braking unit attached to planet gear through friction coupling
DE102013214956A1 (en) 2013-07-31 2015-02-19 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission

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DE102010019979B4 (en) 2010-05-10 2012-05-31 Schaeffler Technologies Gmbh & Co. Kg Switching device for a motor vehicle change-speed gearbox
DE102011012104A1 (en) * 2011-02-23 2012-09-20 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Toothed pulley for transmission of torque from crankshaft to camshaft in internal combustion engine over toothed belt, has sprocket tooth, which are formed convex in plane stretched by transverse axis and peripheral direction
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WO2012019798A1 (en) 2010-08-13 2012-02-16 Schaeffler Technologies Gmbh & Co. Kg Shifting device for a transmission
DE102010034281A1 (en) 2010-08-13 2012-02-16 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102011089004A1 (en) 2011-12-19 2013-06-20 Schaeffler Technologies AG & Co. KG Switching device for change of transmission in motor vehicle, has additional mass of inertia for equalization of power peaks, where movement of additional mass of inertia is delayed by braking unit
DE102012220988A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switchgear, particularly switching dome, for gear change transmission of vehicle, has rotatable switching shaft and damper unit for equalization of force peaks, where damper unit is arranged on switching shaft
WO2014075673A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies AG & Co. KG Switching device for a gearbox
DE102013223251A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102012220994A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device i.e. switching dome, for gear change-speed gearbox of vehicle, has planet gear connecting additional mass to rotatable switching shaft by gearing, and wheel comprising additional mass formed as flywheel
WO2014075672A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies AG & Co. KG Switching device for a gearbox
DE102012220999A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device i.e. switching dome, for gear wheel change speed gear of vehicle i.e. motor car, has center part i.e. front-sided cover, including centering unit, where center part positions two of wheels relative to each other
DE102012221000A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102012220998A1 (en) 2012-11-16 2014-05-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for gear wheel change speed gear of vehicle e.g. motor car, has planetary gear that binds additional mass in transmission to switching shaft and braking unit attached to planet gear through friction coupling
DE102012220998B4 (en) * 2012-11-16 2015-01-22 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102012220994B4 (en) * 2012-11-16 2015-02-26 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102012220988B4 (en) * 2012-11-16 2016-06-30 Schaeffler Technologies AG & Co. KG Switching device for a transmission
DE102013214956A1 (en) 2013-07-31 2015-02-19 Schaeffler Technologies Gmbh & Co. Kg Switching device for a transmission
DE102013214956B4 (en) 2013-07-31 2018-05-17 Schaeffler Technologies AG & Co. KG Switching device for a transmission

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