DE10230785A1 - Shift device for a gearwheel change gear comprises an operating element designed as an annular part with a closed inner periphery between its ends and enclosing a specified central angle - Google Patents
Shift device for a gearwheel change gear comprises an operating element designed as an annular part with a closed inner periphery between its ends and enclosing a specified central angle Download PDFInfo
- Publication number
- DE10230785A1 DE10230785A1 DE2002130785 DE10230785A DE10230785A1 DE 10230785 A1 DE10230785 A1 DE 10230785A1 DE 2002130785 DE2002130785 DE 2002130785 DE 10230785 A DE10230785 A DE 10230785A DE 10230785 A1 DE10230785 A1 DE 10230785A1
- Authority
- DE
- Germany
- Prior art keywords
- rotation
- axis
- annular groove
- ring
- groove
- 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- Withdrawn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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0432—Lubricant guiding means on or inside shift rods or shift forks
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
- F16H57/0494—Gearings with spur or bevel gears with variable gear ratio or for reversing rotary motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Die Erfindung betrifft eine Schaltvorrichtung eines Zahnräderwechselgetriebes mit einer an einer Schaltgabel angeordneten Schmiervorrichtung nach dem Oberbegriff von Patentanspruch 1.The invention relates to a switching device of a Change-speed gearbox with a arranged on a shift fork lubricating device after the The preamble of claim 1.
Bei einer bekannten Schaltvorrichtung
der eingangs genannten Art (
Die der vorliegenden Erfindung zugrunde liegende Aufgabe ist im Wesentlichen darin zu sehen, eine kontinuierliche Schmierung der Eingriffsstellen des Betätigungsgliedes der Schaltgabel an der jeweiligen Nutseitenwand der Ringnut der Schaltschiebemuffe sicherzustellen.The basis of the present invention Essentially, the underlying task is a continuous one Lubrication of the points of engagement of the actuator of the shift fork at the respective groove side wall of the annular groove of the sliding contact sleeve sure.
Die erläuterte Aufgabe ist gemäß der Erfindung mit den kennzeichnenden Merkmalen von Patentanspruch 1 in vorteilhafter Weise gelöst.The explained object is according to the invention with the characterizing features of claim 1 in an advantageous Way solved.
Bei der Schaltvorrichtung nach der Erfindung findet nicht wie bei der bekannten Schaltvorrichtung ein Transport von Schmieröl radil außen um die Kontur der Schaltschiebemuffe herum statt, sondern der bereits die Ringnut innen benetzende Ölfilm wird zur Zwangsschmierung der Eingriffsstelle des Betätigungsgliedes der Schaltgabel unter Vermittlung eines der Wirkung eines hydrodynamischen Schmierkeiles gleichenden Effektes genutzt.In the switching device according to the Invention does not take place as in the known switching device Transport of lubricating oil Radil outside around the contour of the sliding sleeve, but the already the annular groove inside wetting oil film is used for forced lubrication of the point of engagement of the actuator the shift fork mediation one of the action of a hydrodynamic Used lubricating wedge equivalent effect.
Bei der Schaltvorrichtung nach der Erfindung ist das in die Ringnut der Schaltschiebemuffe eingreifende Betätigungsglied der Schaltgabel in Form eines einen Zentriwinkel kleiner 360° einschließenden Ringstückes ausgebildet, bei welchem der Zentriwinkel je nach Anwendungsfall bspw. nicht wesentlich kleiner als 60°, vorzugsweise größer als 90° ausgelegt sein könnte sowie die geometrische Ringachse des Ringstückes um einen geringen Achsversatz gegenüber der geometrischen Mittelachse der Schaltschiebemuffe achsparallel versetzt angeordnet ist. Dadurch ist ein keilförmiger Ringspalt zwischen Ringstück und Ringnut gebildet, welcher sich gezielt in Drehrichtung der Schaltschiebemuffe verengt, wodurch das die Ringnut benetzende Schmieröl, welches zuvor im Ölsumpf von der eintauchenden Schaltschiebemuffe aufgenommen worden ist, nun in die Enge getrieben, zum seitlichen Verlassen der in Form des keilförmigen Ringspaltes ausgebildeten Schmierkammer gezwungen wird, dieses aber nur auf dem Wege durch die beiden axialen Ringspalte zwischen dem Ringstück einerseits und jeweils einer Nutseitenwand der Ringnut andererseits möglich ist.In the switching device according to the Invention is engaging in the annular groove of the sliding contact sleeve actuator the shift fork is designed in the form of a ring piece enclosing a central angle of less than 360 °, in which the central angle depending on the application, for example, not much smaller than 60 °, preferably greater than 90 ° designed could be and the geometric ring axis of the ring piece to a small axial offset across from the geometric center axis of the sliding sleeve sleeve parallel to the axis is arranged offset. As a result, a wedge-shaped annular gap between the ring piece and the ring groove formed, which is targeted in the direction of rotation of the sliding shift sleeve narrows, whereby the ring groove wetting lubricating oil, which previously in the oil sump has been picked up by the immersed sliding sleeve, now cornered, for lateral leaving the in shape of the wedge-shaped Annular gap trained lubrication chamber is forced, but this only on the way through the two axial annular gaps between the banjo on the one hand and in each case a groove side wall of the annular groove on the other possible is.
Bei einer Ausführungsform der Schaltvorrichtung nach der Erfindung ist es vorteilhaft, wenn das Ringstück am Eingang der keilförmigen Schmierkammer gemäß Patentanspruch 2 Einlaufschrägen aufweist, um die sich anstauenden Ölteilchen insbesondere in die besagten axialen Ringspalte zu drücken.In one embodiment of the switching device According to the invention, it is advantageous if the ring piece at the entrance the wedge-shaped Lubricating chamber according to claim Has 2 inlet slopes, around the accumulating oil particles in particular to press in said axial annular gaps.
Bei der Schaltvorrichtung nach der Erfindung ist es weiterhin vorteilhaft, wenn gemäß der Lehre von Patentanspruch 3 Schmiernuten an dem Ringstück und/oder der Ringnut vorgesehen sind.In the switching device according to the Invention, it is also advantageous if according to the teaching of claim 3 lubrication grooves on the ring piece and / or the annular groove are provided.
Bei der Schaltvorrichtung nach der Erfindung ist es insbesondere zur Vermeidung von zu Auslenkungen ihrer geometrischen Mittelachse führenden Kippbewegungen der Schaltschiebemuffe vorteilhaft, wenn das Ringstück gemäß den Merkmalen von Patentanspruch 4 einen Zentriwinkel von annähernd 180° einschließt.In the switching device according to the Invention is particularly to avoid deflections their geometric center axis leading tilting movements of the Shift sliding sleeve advantageous if the ring piece according to the features of claim 4 includes a central angle of approximately 180 °.
Bei der Schaltvorrichtung nach der Erfindung tritt zusätzlich zu der erreichten Zwangsschmierung noch der vorteilhafte Effekt auf, daß Ölteilchen, welche eine Nutseitenwand benetzen, je nach Lage zur Drehachse beim Eintreten in die keilförmige Schmierkammer entweder durch die Einlaufschräge in den zu schmierenden axialen Spalt gedrückt werden oder, wenn sie sich nahe am Nutgrund befinden, an irgend einer Stelle im Bereich des Zentriwinkels, spätestens jedoch im Scheitel der keilförmigen Schmierkammer in Berührung mit dem am Nutgrund in Anlage gelangenden Innenmantel des Ringstückes kommen und auf solche Weise einer Schmierfunktion in dem sich bildenden radialen Spalt zwischen Innenmantel und Nutgrund Genüge tun.In the switching device according to the Invention occurs in addition to the achieved forced lubrication nor the beneficial effect on that oil particles, which wet a groove side wall, depending on the position of the axis of rotation Entering the wedge-shaped Lubricating chamber either through the inlet slope in the axial to be lubricated Gap pressed or, if they are close to the bottom of the groove, to any one Place in the area of the central angle, but at the very top of the vertex the wedge-shaped Lubricating chamber in contact come with the groove bottom in conditioning reaching inner shell of the ring piece and in such a way a lubricating function in the forming radial gap between the inner jacket and the groove base are sufficient.
Die Erfindung ist nachstehend anhand einer in der Zeichnung schematisch dargestellten Ausführungsform näher beschrieben. In der Zeichnung, in welcher lediglich die zum Verständnis erforderlichen Merkmale und Funktionen der Schaltvorrichtung gezeigt sind, bedeutenThe invention is described below an embodiment shown schematically in the drawing described in more detail. In the drawing, in which only the features required for understanding and functions of the switching device are shown, mean
Eine Schaltschiebemuffe
Die Schaltschiebemuffe
An der Schaltgabel
Von dieser keilförmigen Schmierkammer
Diese Schmierölversorgung wird durch radiale
Schmiernuten
Am Eintritt der keilförmigen Schmierkammer
Aufgrund des kontinuierlich sich
verengenden Querschnittes der Schmierkammer
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002130785 DE10230785A1 (en) | 2002-07-09 | 2002-07-09 | Shift device for a gearwheel change gear comprises an operating element designed as an annular part with a closed inner periphery between its ends and enclosing a specified central angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002130785 DE10230785A1 (en) | 2002-07-09 | 2002-07-09 | Shift device for a gearwheel change gear comprises an operating element designed as an annular part with a closed inner periphery between its ends and enclosing a specified central angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10230785A1 true DE10230785A1 (en) | 2004-01-22 |
Family
ID=29761763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002130785 Withdrawn DE10230785A1 (en) | 2002-07-09 | 2002-07-09 | Shift device for a gearwheel change gear comprises an operating element designed as an annular part with a closed inner periphery between its ends and enclosing a specified central angle |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10230785A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2898396A1 (en) * | 2006-03-13 | 2007-09-14 | Bronze Alu Soc Par Actions Sim | METHOD FOR DRIVING A GEARBOX PLAYER, DRIVE ORGAN, AND CORRESPONDING GEARBOX. |
| DE102016220306B3 (en) * | 2016-10-18 | 2017-12-28 | Audi Ag | Gear arrangement for a motor vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH535394A (en) * | 1970-06-22 | 1973-03-31 | Tatra Np | Shift fork with sliding blocks |
| EP0855541A2 (en) * | 1997-01-27 | 1998-07-29 | Eaton Corporation | Improved shift yoke |
| JPH11118029A (en) * | 1997-10-13 | 1999-04-30 | Daihatsu Motor Co Ltd | Lubrication structure of shift fork |
-
2002
- 2002-07-09 DE DE2002130785 patent/DE10230785A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH535394A (en) * | 1970-06-22 | 1973-03-31 | Tatra Np | Shift fork with sliding blocks |
| EP0855541A2 (en) * | 1997-01-27 | 1998-07-29 | Eaton Corporation | Improved shift yoke |
| JPH11118029A (en) * | 1997-10-13 | 1999-04-30 | Daihatsu Motor Co Ltd | Lubrication structure of shift fork |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2898396A1 (en) * | 2006-03-13 | 2007-09-14 | Bronze Alu Soc Par Actions Sim | METHOD FOR DRIVING A GEARBOX PLAYER, DRIVE ORGAN, AND CORRESPONDING GEARBOX. |
| DE102016220306B3 (en) * | 2016-10-18 | 2017-12-28 | Audi Ag | Gear arrangement for a motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
| 8120 | Willingness to grant licenses paragraph 23 | ||
| 8141 | Disposal/no request for examination |