DE102010046064A1 - Torque transmission device for connecting hydraulic pump, of pump arrangement in pedal force servo system of motor vehicle, with electrical drive, has wheel provided with groove, where pin is engaged into groove and arranged in borehole - Google Patents
Torque transmission device for connecting hydraulic pump, of pump arrangement in pedal force servo system of motor vehicle, with electrical drive, has wheel provided with groove, where pin is engaged into groove and arranged in borehole Download PDFInfo
- Publication number
- DE102010046064A1 DE102010046064A1 DE102010046064A DE102010046064A DE102010046064A1 DE 102010046064 A1 DE102010046064 A1 DE 102010046064A1 DE 102010046064 A DE102010046064 A DE 102010046064A DE 102010046064 A DE102010046064 A DE 102010046064A DE 102010046064 A1 DE102010046064 A1 DE 102010046064A1
- Authority
- DE
- Germany
- Prior art keywords
- transmission device
- torque transmission
- driver
- groove
- pin
- 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.)
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/04—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow radial displacement, e.g. Oldham couplings
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2052—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having two pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
Description
Die Erfindung betrifft eine Drehmomentübertragungseinrichtung, eine Pumpenanordnung sowie die Verwendung der Pumpenanordnung.The invention relates to a torque transmission device, a pump assembly and the use of the pump assembly.
Aus dem Stand der Technik sind Antriebe hydraulischer Pumpen durch elektrische Antriebe bekannt. Dabei muss ein Winkelversatz sowie ein radialer Versatz (Schiefstellung) zwischen der Eingangswelle der Pumpe und der Abtriebswelle des elektrischen Antriebes ausgeglichen werden.Drives of hydraulic pumps by electric drives are known from the prior art. In this case, an angular offset and a radial offset (skew) between the input shaft of the pump and the output shaft of the electric drive must be compensated.
Aus der
Nachteilig an den bekannten Lösungen ist der hohe Fertigungsaufwand, um entweder die Zentrierung zu bewirken oder den Ausgleich bei unvollständiger Zentrierung zu bewirken.A disadvantage of the known solutions is the high manufacturing cost to either cause the centering or to effect the compensation in incomplete centering.
Eine Aufgabe der vorliegenden Erfindung ist es daher, eine kostengünstige und dauerfeste Drehmomentübertragungseinrichtung bereitzustellen.An object of the present invention is therefore to provide a low-cost and durable torque transmission device.
Dieses Problem wird gelöst durch eine Drehmomentübertragungseinrichtung umfassend eine Welle, die beiderseits mit je einem Kupplungsmittel versehen ist, wobei das eine Kupplungsmittel eine Ausnehmung aufweist, in die ein Zweiflach der Welle ragt, und das andere Kupplungsmittel mindestens eine Axialnut aufweist, in die ein Stift, der in einer Radialbohrung des zweiten Kupplungsmittels angeordnet ist, greift.This problem is solved by a torque transmitting device comprising a shaft which is provided on both sides with a coupling means, wherein the one coupling means has a recess into which a two-plane of the shaft protrudes, and the other coupling means has at least one axial groove into which a pin, which is arranged in a radial bore of the second coupling means engages.
Vorzugsweise ist vorgesehen, dass das eine Kupplungsmittel ein erster Mitnehmer ist, der auf beiden axialen Seiten je eine Ausnehmung aufweist, die im rechten Winkel oder in etwa im rechten Winkel zueinander angeordnet sind, wobei der Zweiflach der Welle in eine der Ausnehmungen ragt. Das Kupplungsmittel bewirkt so einen Ausgleich eines Wellenversatzes nach Art einer Oldham-Kupplung.Preferably, it is provided that the one coupling means is a first driver which has a recess on both axial sides, which are arranged at right angles or approximately at right angles to each other, wherein the two-plane of the shaft protrudes into one of the recesses. The coupling agent thus causes a compensation of a shaft offset in the manner of an Oldham coupling.
Vorzugsweise ist vorgesehen, dass die mit dem Zweiflach der Welle korrespondierende Ausnehmung ballige Flächen, die mit den Flächen des Zweiflachs korrespondieren, aufweist. Die balligen Flächen vermindern die an den Kanten des Zweiflachs auftretenden Spannungsspitzen, wenn die Anordnung ein Drehmoment überträgt. Unter balligen Flächen oder Balligkeit wird hier jede Form einer konvexen Ausbuchtung, also einer Ausbuchtung, die die lichte Weite der Öffnung vermindert, verstanden.Preferably, it is provided that the recess corresponding to the two-plane of the shaft has spherical surfaces which correspond to the surfaces of the two-salmon. The crowned surfaces reduce the voltage spikes occurring at the edges of the two-bladed as the assembly transmits torque. Under spherical surfaces or crowning here any shape of a convex bulge, ie a bulge, which reduces the clear width of the opening understood.
Vorzugsweise ist vorgesehen, dass die mit dem Zweiflach der Welle abgewandte Ausnehmung ballige Flächen, die mit den Flächen eines weiteren Zweiflachs korrespondieren, aufweist. Mit dieser Maßnahme werden auch die Spannungsspitzen zwischen einem Zweiflach der Abtriebswelle des elektrischen Antriebes und der Ausnehmung des ersten Mitnehmers verringert.Preferably, it is provided that the recess facing away from the two-axis of the shaft has spherical surfaces which correspond to the surfaces of a further two-salmon. With this measure, the voltage peaks between a two-plane of the output shaft of the electric drive and the recess of the first driver are reduced.
Durch die balligen Flächen einer oder vorzugsweise beider Ausnehmungen werden Spannungsspitzen innerhalb des Mitnehmers durch punktuelle bzw. linienförmige Flächenpressung der Kanten der Zweiflache deutlich verringert und so die Dauerfestigkeit weiter erhöht.Due to the convex surfaces of one or preferably both recesses stress peaks are significantly reduced within the driver by punctual or line-shaped surface pressure of the edges of the two-ply, thus further increasing the fatigue strength.
Vorzugsweise ist vorgesehen, dass das andere Kupplungsmittel ein zweiter Mitnehmer, insbesondere ein Zahnrad oder Ritzel, ist, wobei der zweite Mitnehmer eine Durchgangsbohrung umfasst, in die an der dem anderen Mitnehmer abgewandten Seite mindestens eine Axialnut eingebracht ist, in die der in radialer Richtung zur Welle an dieser angeordnete Stift eingreift. Diese Verbindung zwischen Welle und zweitem Mitnehmer ist leicht zu fertigen und leicht zu montieren.Preferably, it is provided that the other coupling means is a second driver, in particular a gear or pinion, wherein the second driver comprises a through hole into which on the side facing away from the other driver at least one axial groove is introduced, in which in the radial direction Shaft engages this arranged pin. This connection between the shaft and the second driver is easy to manufacture and easy to assemble.
Vorzugsweise ist vorgesehen, dass in den Mitnehmer zwei Axialnuten eingebracht sind, in die der Stift jeweils eingreift. Dadurch kann die Welle zur Montage von einer Seite durch den Mitnehmer durchgeschoben werden.It is preferably provided that two axial grooves are introduced into the driver, in which the pin engages in each case. As a result, the shaft can be pushed through for mounting from one side through the driver.
Vorzugsweise ist vorgesehen, dass die Axialnut an einem Grund eine Rundung aufweist, deren Radius in etwa dem des Stiftes entspricht. Durch flächiges Anliegen der Enden des Stiftes in der Nut wird die Flächenpressung zwischen beiden verringert, was ebenfalls der Verbesserung der Dauerfestigkeit und maximalen Belastbarkeit dient.Preferably, it is provided that the axial groove has a rounding at a base whose radius corresponds approximately to that of the pin. By flat concerns of the ends of the pin in the groove, the surface pressure between the two is reduced, which also serves to improve the fatigue strength and maximum load capacity.
Diese Ausführungsform ist dann besonders vorteilhaft, wenn neben dem Drehmoment auch Axialkräfte in eine Axialrichtung zwischen der Welle und dem Ritzel übertragen werden müssen.This embodiment is particularly advantageous if in addition to the torque and axial forces must be transmitted in an axial direction between the shaft and the pinion.
Vorzugsweise ist vorgesehen, dass der Stift in einer radialen Durchgangsbohrung der Welle angeordnet ist.It is preferably provided that the pin is arranged in a radial through bore of the shaft.
Vorzugsweise ist vorgesehen, dass zumindest einer der Mitnehmer aus einem Kunststoff und die Welle aus Metall gefertigt ist. Weiter bevorzugt ist dabei vorgesehen, dass der erste Mitnehmer aus einem nichtmineralischen Duroplast, insbesondere aus einem kohlenstoffhaltigen Duroplast, hergestellt ist. Die auf Mineralbasis hergestellten Duroplaste neigen an der Verbindungstelle Welle-Mitnehmer zur Tribooxidation (Passungsrost), was zur Funktionsbeeinträchtigung bzw. Systemausfall führt. Kohlenstoffhaltige Duroplaststoffe bieten weitere Vorteile, z. B. eine Minimierung der Reibleistung in den Kontaktstellen.It is preferably provided that at least one of the drivers is made of a plastic and the shaft is made of metal. More preferably, it is provided that the first driver is made of a non-mineral thermosetting plastic, in particular of a carbon-containing thermosetting plastic. The mineral-based thermosets tend to Tribooxidation (fretting corrosion) at the junction shaft-driver, which leads to functional impairment or system failure. Carbon-containing thermosets offer further advantages, eg. B. minimizing the friction in the contact points.
Das eingangs genannte Problem wird auch gelöst durch eine Pumpenanordnung umfassend eine Hydraulikpumpe, die mittels einer erfindungsgemäßen Drehmomentübertragungseinrichtung mit einem elektrischen Antrieb verbunden ist. Solche Pumpenanordnungen werden beispielsweise in automatischen Getrieben wie Doppelkupplungsgetriebe, stufenlose Kegelumschlingungsgetriebe oder Stufenautomaten eingesetzt.The problem mentioned at the beginning is also solved by a pump arrangement comprising a hydraulic pump, which is connected to an electric drive by means of a torque transmission device according to the invention. Such pump arrangements are used, for example, in automatic transmissions such as dual-clutch transmissions, continuously variable conical transmissions or step machines.
Das eingangs genannte Problem wird auch gelöst durch die Verwendung einer erfindungsgemäßen Pumpenanordnung in einem Pedalkraftservosystem eines Kraftfahrzeuges.The problem mentioned at the outset is also solved by the use of a pump arrangement according to the invention in a pedal force servo system of a motor vehicle.
Die Erfindung wird anhand der
Die Drehmomentübertragungseinrichtung
Die Welle, wie diese in
Mit dem Zweiflach
Die Verbindung des Zahnrades
Am Beispiel der Nut
Während der Zweiflach
Da der Zweiflach
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- DrehmomentübertragungseinrichtungTorque transfer device
- 22
- Wellewave
- 33
- Mitnehmertakeaway
- 44
- Zahnradgear
- 55
- Pfeilarrow
- 66
- zylindrischer Bereichcylindrical area
- 77
- Radialbohrungradial bore
- 88th
- EndeThe End
- 99
- Stiftpen
- 1010
- EndeThe End
- 1111
- Zweiflachtwo flat
- 1212
- Ausnehmungrecess
- 1313
- Ausnehmungrecess
- 1414
- Doppelpfeildouble arrow
- 15a15a
- Nutgroove
- 15b15b
- Nutgroove
- 1616
- Grundreason
- 17a17a
- ballige Flächespherical surface
- 17b17b
- ballige Flächespherical surface
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19839177 [0003] DE 19839177 [0003]
- WO 2008/017546 [0003] WO 2008/017546 [0003]
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010046064A DE102010046064A1 (en) | 2009-09-29 | 2010-09-20 | Torque transmission device for connecting hydraulic pump, of pump arrangement in pedal force servo system of motor vehicle, with electrical drive, has wheel provided with groove, where pin is engaged into groove and arranged in borehole |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009043648 | 2009-09-29 | ||
DE102009043648.0 | 2009-09-29 | ||
DE102010046064A DE102010046064A1 (en) | 2009-09-29 | 2010-09-20 | Torque transmission device for connecting hydraulic pump, of pump arrangement in pedal force servo system of motor vehicle, with electrical drive, has wheel provided with groove, where pin is engaged into groove and arranged in borehole |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010046064A1 true DE102010046064A1 (en) | 2011-03-31 |
Family
ID=43662752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010046064A Withdrawn DE102010046064A1 (en) | 2009-09-29 | 2010-09-20 | Torque transmission device for connecting hydraulic pump, of pump arrangement in pedal force servo system of motor vehicle, with electrical drive, has wheel provided with groove, where pin is engaged into groove and arranged in borehole |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010046064A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2981711A1 (en) * | 2011-10-20 | 2013-04-26 | Jtekt Hpi | Nut for coupling driving shaft to resistant shaft of external gear pump for car, has grooves formed in surfaces of cylindrical body, where contact widths of engaged shaft ends with inner surfaces of grooves are lesser than that of grooves |
DE102021105822A1 (en) | 2021-03-10 | 2022-09-15 | Nidec Gpm Gmbh | Gerotor pump with clutch |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19839177A1 (en) | 1997-08-30 | 1999-03-11 | Luk Automobiltech Gmbh & Co Kg | Torque transmitting shaft connection |
WO2008017546A1 (en) | 2006-08-09 | 2008-02-14 | Robert Bosch Gmbh | Fuel injection pump with an improved drive clutch |
-
2010
- 2010-09-20 DE DE102010046064A patent/DE102010046064A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19839177A1 (en) | 1997-08-30 | 1999-03-11 | Luk Automobiltech Gmbh & Co Kg | Torque transmitting shaft connection |
WO2008017546A1 (en) | 2006-08-09 | 2008-02-14 | Robert Bosch Gmbh | Fuel injection pump with an improved drive clutch |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2981711A1 (en) * | 2011-10-20 | 2013-04-26 | Jtekt Hpi | Nut for coupling driving shaft to resistant shaft of external gear pump for car, has grooves formed in surfaces of cylindrical body, where contact widths of engaged shaft ends with inner surfaces of grooves are lesser than that of grooves |
DE102021105822A1 (en) | 2021-03-10 | 2022-09-15 | Nidec Gpm Gmbh | Gerotor pump with clutch |
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Legal Events
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150407 |
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R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |