EP1676045A1 - Vehicle gearbox with an integrated brake - Google Patents

Vehicle gearbox with an integrated brake

Info

Publication number
EP1676045A1
EP1676045A1 EP04765627A EP04765627A EP1676045A1 EP 1676045 A1 EP1676045 A1 EP 1676045A1 EP 04765627 A EP04765627 A EP 04765627A EP 04765627 A EP04765627 A EP 04765627A EP 1676045 A1 EP1676045 A1 EP 1676045A1
Authority
EP
European Patent Office
Prior art keywords
vehicle transmission
integrated brake
cup
lubricant
brake according
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Withdrawn
Application number
EP04765627A
Other languages
German (de)
French (fr)
Inventor
Hermann Sonnleitner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1676045A1 publication Critical patent/EP1676045A1/en
Withdrawn legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/78—Features relating to cooling
    • F16D65/84—Features relating to cooling for disc brakes
    • F16D65/853—Features relating to cooling for disc brakes with closed cooling system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • 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
    • F16D65/00—Parts or details
    • F16D65/78—Features relating to cooling
    • F16D2065/787—Pumps

Definitions

  • the invention relates to a vehicle transmission with an integrated brake according to the kind defined in the preamble of claim 1.
  • Vehicle transmissions with an integrated brake are used as final transmissions in vehicle axles, preferably for all types of work machines, eg. B. wheel loaders or industrial trucks, wheeled or tracked vehicles used.
  • work machines eg. B. wheel loaders or industrial trucks, wheeled or tracked vehicles used.
  • the disk carrier of the brake which is held in a rotationally fixed manner when the brake is actuated, is directly connected to the output of the vehicle transmission. Due to the resulting low differential speed of the brake plates, adequate cooling of the brake plates during, before and after the braking process is of particular importance.
  • DE 197 18 744 C1 discloses a vehicle transmission with an integrated brake, in which the rotating inner plates are arranged in the outer region of the planet carrier and the stationary outer plates in the non-rotatable gear housing, where the lubricant experiences a centrifugal acceleration due to the rotating movement of the planet carrier and thus flows through the plates and it cools.
  • EP 1 234 993 AI discloses a vehicle transmission with an integrated brake, in which the inner rotating plates are arranged on the outer circumference of the planet carrier. net and the standing disks are connected to the non-rotatably held gear housing, and lubricant reaches the disks by rotary motion of the planet carrier and is conveyed by the centrifugal acceleration in the multi-disk brake to the radially outer end of the multi-disk brake.
  • the object of the present invention is to provide the brake with sufficient lubricant in a vehicle transmission with an integrated brake, which is connected in a rotationally fixed manner to the output, in order to prevent the brake from overheating.
  • the transmission has a multi-disc brake, in which the discs are connected in a rotationally fixed manner to a disc carrier which is connected in a rotationally fixed manner to the output.
  • the plate carrier is connected in a rotationally fixed manner to at least one cup-shaped element which, when the plate carrier rotates, absorbs lubricant and passes it on to the plates.
  • the cup-shaped element is in this case connected to the plate carrier or to an element connected to the plate carrier such that the cup-shaped element is immersed in a lubricant reservoir by rotation of the plate carrier, fills up as a result and, when the plate carrier is rotated further, remains filled until the cup-shaped element remains filled horizontal center of the slat carrier and thereby the
  • Lubricant is poured out of the cup-shaped element and flows to the brake discs. At higher speeds, the centrifugal force supports the outflow of the Lubricant from the cup.
  • the lubricant flows from the cup-shaped element to the inner diameter of the brake plates and is distributed over the surface of the plates via grooves which are incorporated in the brake plates.
  • lubricant is also supplied to the plate brake.
  • a plurality of cup-shaped elements are preferably used, which are arranged evenly distributed over the circumference.
  • the vehicle transmission has a planetary gear, in which the planet carrier of the planetary gear is connected in a rotationally fixed manner to the disk carrier or is formed in one piece therewith. It is possible to arrange the cup-shaped elements in or on the planet carrier or the disk carrier or to carry them out in one piece with these components.
  • the planet carrier preferably has recesses in which the cup-shaped elements are arranged.
  • the cup-shaped elements can be made from deep-drawn material, such as plastic or sheet steel. However, there is also the possibility of integrally forming the cup-shaped elements with the rotatable components, these being able to be produced, for example, by casting or forging.
  • guide elements are arranged on rotatable parts of the vehicle transmission, which effect a targeted flow of the lubricant within the vehicle transmission, thereby replacing the
  • Lubricant takes place in the immediate vicinity of the brake. This ensures that the cup-shaped elements can absorb almost cooled lubricant. If the vehicle transmission is arranged in a drive axle, then a targeted flow of the lubricant from the axle bridge to the rooms in the immediate vicinity of the brake is achieved by using the guide elements. In the area of the axle bridge in particular there is a lubricant
  • the vehicle transmissions can be designed like the vehicle transmissions of DE 197 18 744 Cl and EP 1 234 993 AI, which are hereby to be included in their entirety.
  • the single figure shows a section of a vehicle transmission with an integrated brake, as shown in DE 197 18 744 Cl.
  • An output flange 1 is rotatably connected to the planet carrier 2, which is integrally connected to a disk carrier 3.
  • the disk carrier 3 holds the inner rotating disks 4 of the disk brake 5 on its radially outer circumference.
  • the outer standing disks 5 are held in the transmission housing 6 in a rotationally fixed manner.
  • the output flange 1 is mounted in the gear housing 6 via a bearing 8. In the radially outer region of the planet carrier 2, this has recesses 9, in which cup-shaped elements 10 are arranged.
  • the cup-shaped elements 10 which are preferably uniform are arranged on the circumference of the planet carrier 2, in a lubricant sump, not shown, whereby the cup-shaped elements are filled with lubricant.
  • the lubricant passes over the lubricant sump and is thrown out of the cup-shaped elements 10 by gravity and centrifugal force above the lubricant sump.
  • the lubricant thereby reaches the inner rotating plates 4 and is evenly distributed between the plates 4 and 5 by grooves in the inner rotating plates 4 or the outer standing plates 5.
  • the centrifugal acceleration the lubricant eventually passes into a chamber 12 which is disposed at the radial end of the stationary outer fins 5, whereby 'the lubricant again through a channel 13 back to the
  • Planet carrier 2 can flow.
  • at least one guide element 14 is arranged on the planet carrier 2, which can be made in one piece with the planet carrier 2 or as a separate component, and which causes a flow in the lubricant sump when the planet carrier 2 rotates. Due to the flow in the lubricant sump, the lubricant is exchanged in the immediate vicinity of the removal point of the cup-shaped elements 10, as a result of which cooled lubricant reaches the cup-shaped elements 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention relates to a vehicle gearbox comprising an integrated brake. The inner, rotating disks (4) are rotationally fixed to a sun wheel (2) which comprises recesses (9) which are arranged in the periphery thereof. Cup-shaped elements (10) are arranged in said recesses. Said recesses scoop up the lubricating agent and transport it to the inner, rotating disks (4).

Description

Fahrzeuggetriebe mit integrierter Bremse Vehicle transmission with integrated brake
Die Erfindung bezieht sich auf ein Fahrzeuggetriebe mit integrierter Bremse nach der im Oberbegriff von Anspruch 1 näher definierten Art .The invention relates to a vehicle transmission with an integrated brake according to the kind defined in the preamble of claim 1.
Fahrzeuggetriebe mit integrierter Bremse werden als Endgetriebe in Fahrzeugachsen, vorzugsweise für Arbeitsma- schinen jeglicher Art, z. B. Radlader oder Flurförderfahrzeuge, Rad- oder Kettenfahrzeuge, verwendet. Insbesondere bei Anwendungen, bei welchen der Abtrieb im gebremsten Zustand keinerlei Drehbewegungen, beispielsweise durch Verzahnungsspiele, zulassen soll, wie beispielsweise bei einem Mobilbagger, wird der Lamellenträger der Bremse, welcher beim Betätigen der Bremse drehfest gehalten wird, direkt mit dem Abtrieb des Fahrzeuggetriebes verbunden. Durch die daraus resultierende geringe Differenzgeschwindigkeit der Bremslamellen ist eine ausreichende Kühlung der Bremslamel- len während, vor und nach dem Bremsvorgang von besonderer Bedeutung.Vehicle transmissions with an integrated brake are used as final transmissions in vehicle axles, preferably for all types of work machines, eg. B. wheel loaders or industrial trucks, wheeled or tracked vehicles used. Particularly in applications in which the output should not allow any rotational movements, for example due to toothed play, in the braked state, such as in a mobile excavator, the disk carrier of the brake, which is held in a rotationally fixed manner when the brake is actuated, is directly connected to the output of the vehicle transmission. Due to the resulting low differential speed of the brake plates, adequate cooling of the brake plates during, before and after the braking process is of particular importance.
Die DE 197 18 744 Cl offenbart ein Fahrzeuggetriebe mit integrierter Bremse, bei welchem die drehenden inneren Lamellen im äußeren Bereich des Planetenträgers und die stehenden äußeren Lamellen im drehfesten Getriebegehäuse angeordnet sind, wo durch Drehbewegung des Planetenträgers das Schmiermittel eine Zentrifugalbeschleunigung erfährt und somit die Lamellen durchströmt und diese kühlt.DE 197 18 744 C1 discloses a vehicle transmission with an integrated brake, in which the rotating inner plates are arranged in the outer region of the planet carrier and the stationary outer plates in the non-rotatable gear housing, where the lubricant experiences a centrifugal acceleration due to the rotating movement of the planet carrier and thus flows through the plates and it cools.
Die EP 1 234 993 AI offenbart ein Fahrzeuggetriebe mit integrierter Bremse, bei welchem die inneren drehenden Lamellen auf dem äußeren Umfang des Planetenträgers angeord- net und die stehenden Lamellen mit dem drehfest gehaltenen Getriebegehäuse verbunden sind, und durch Drehbewegung des Planetenträgers Schmiermittel zu den Lamellen gelangt und durch die Zentrifugalbeschleunigung in der Lamellenbremse zum radial äußeren Ende der Lamellenbremse gefördert wird.EP 1 234 993 AI discloses a vehicle transmission with an integrated brake, in which the inner rotating plates are arranged on the outer circumference of the planet carrier. net and the standing disks are connected to the non-rotatably held gear housing, and lubricant reaches the disks by rotary motion of the planet carrier and is conveyed by the centrifugal acceleration in the multi-disk brake to the radially outer end of the multi-disk brake.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei einem Fahrzeuggetriebe mit integrierter Bremse, welche drehfest mit dem Abtrieb verbunden ist, die Bremse ausrei- chend mit Schmiermittel zu versorgen, um somit ein Überhitzen der Bremse zu verhindern.The object of the present invention is to provide the brake with sufficient lubricant in a vehicle transmission with an integrated brake, which is connected in a rotationally fixed manner to the output, in order to prevent the brake from overheating.
Die Aufgabe wird mit einem, auch die kennzeichnenden Merkmale des Hauptanspruchs aufweisenden, gattungsgemäßen Fatirzeuggetriebe mit integrierter Bremse gelöst.The problem is solved with a generic fatirower transmission with integrated brake, which also has the characterizing features of the main claim.
Erfindungsgemäß weist das Getriebe eine Lamellenbremse auf, bei welcher Lamellen mit einem Lamellenträger drehfest verbunden sind, welcher drehfest mit dem Abtrieb verbunden ist. Der Lamellenträger steht mit mindestens einem becherförmigen Element drehfest in Verbindung, welches bei Drehung des Lamellenträgers Schmierflüssigkeit aufnimmt und an die Lamellen weiterleitet. Das becherförmige Element ist hierbei dergestalt mit dem Lamellenträger oder einem mit dem Lamellenträger verbundenen Element verbunden, dass durch Drehung des Lamellenträgers das becherförmige Element in ein Schmiermittelreservoir eintaucht, sich dadurch füllt und bei weiterer Drehung des Lamellenträgers so lange gefüllt bleibt, bis das becherförmige Element die horizontale Mitte des Lamellenträgers überschreitet und dadurch dasAccording to the invention, the transmission has a multi-disc brake, in which the discs are connected in a rotationally fixed manner to a disc carrier which is connected in a rotationally fixed manner to the output. The plate carrier is connected in a rotationally fixed manner to at least one cup-shaped element which, when the plate carrier rotates, absorbs lubricant and passes it on to the plates. The cup-shaped element is in this case connected to the plate carrier or to an element connected to the plate carrier such that the cup-shaped element is immersed in a lubricant reservoir by rotation of the plate carrier, fills up as a result and, when the plate carrier is rotated further, remains filled until the cup-shaped element remains filled horizontal center of the slat carrier and thereby the
Schmiermittel aus dem becherförmigen Element ausgeschüttet wird und zu den Lamellen der Bremse fließt. Bei höherer Drehzahl unterstützt die Zentrifugalkraft das Abfließen des Schmiermittels aus dem Becher. Das Schmiermittel fließt dabei aus dem becherförmigen Element zum Innendurchmesser der Bremselamellen und wird über Nuten, welche in den Bremslamellen eingearbeitet sind, über die Fläche der La- mellen verteilt. Durch die Verwendung von becherförmigen Elementen wird, außer dem Eintauchen der Lamellen in den Schmiermittelsumpf, zusätzlich Schmiermittel der Lamellenbremse zugeführt. Vorzugsweise werden mehrere becherförmige Elemente verwendet, welche gleichmäßig über den Umfang ver- teilt angeordnet sind.Lubricant is poured out of the cup-shaped element and flows to the brake discs. At higher speeds, the centrifugal force supports the outflow of the Lubricant from the cup. The lubricant flows from the cup-shaped element to the inner diameter of the brake plates and is distributed over the surface of the plates via grooves which are incorporated in the brake plates. By using cup-shaped elements, in addition to the plunging of the plates in the lubricant sump, lubricant is also supplied to the plate brake. A plurality of cup-shaped elements are preferably used, which are arranged evenly distributed over the circumference.
In einer weiteren Ausgestaltungsform der Erfindung weist das Fahrzeuggetriebe ein Planetengetriebe auf, bei welchem der Planetenträger des Planetengetriebes drehfest mit dem Lamellenträger verbunden oder mit diesem einstückig ausgebildet ist. Es besteht die Möglichkeit, die becherförmigen Elemente in oder an dem Planetenträger oder dem Lamellenträger anzuordnen oder einstückig mit diesen Bauteilen auszuführen. Vorzugsweise weist der Planetenträger Aus- nehmungen auf, in welchen die becherförmigen Elemente angeordnet sind. Die becherförmigen Elemente können aus tief- ziehbarem Material, wie beispielsweise Kunststoff oder Stahlblech, hergestellt sein. Es besteht jedoch auch die Möglichkeit, die becherförmigen Elemente einstückig mit den drehbaren Bauteilen auszubilden, wobei diese beispielsweise durch Gießen oder Schmieden herstellbar sind. In einer weiteren Ausgestaltungsform der Erfindung sind an drehbaren Teilen des Fahrzeuggetriebes Leitelemente angeordnet, welche eine gezielte Strömung des Schmiermittels innerhalb des Fahrzeuggetriebes bewirken, wodurch ein Austausch desIn a further embodiment of the invention, the vehicle transmission has a planetary gear, in which the planet carrier of the planetary gear is connected in a rotationally fixed manner to the disk carrier or is formed in one piece therewith. It is possible to arrange the cup-shaped elements in or on the planet carrier or the disk carrier or to carry them out in one piece with these components. The planet carrier preferably has recesses in which the cup-shaped elements are arranged. The cup-shaped elements can be made from deep-drawn material, such as plastic or sheet steel. However, there is also the possibility of integrally forming the cup-shaped elements with the rotatable components, these being able to be produced, for example, by casting or forging. In a further embodiment of the invention, guide elements are arranged on rotatable parts of the vehicle transmission, which effect a targeted flow of the lubricant within the vehicle transmission, thereby replacing the
Schmiermittels in der unmittelbaren Nähe der Bremse stattfindet. Somit ist gewährleistet, dass die becherförmigen Elemente nahezu gekühltes Schmiermittel aufnehmen können. Ist das Fahrzeuggetriebe in einer Antriebsachse angeordnet, so wird eine gezielte Strömung des Schmiermittels aus der Achsbrücke zu den Räumen in unmittelbarer Nähe der Bremse durch Verwendung der Leitelemente erreicht . Insbesondere im Bereich der Achsbrücke besteht für das Schmiermittel dieLubricant takes place in the immediate vicinity of the brake. This ensures that the cup-shaped elements can absorb almost cooled lubricant. If the vehicle transmission is arranged in a drive axle, then a targeted flow of the lubricant from the axle bridge to the rooms in the immediate vicinity of the brake is achieved by using the guide elements. In the area of the axle bridge in particular there is a lubricant
Möglichkeit, Temperatur abzugeben, um somit gekühlt wieder zurück zur Lamellenbremse fließen zu können. Mit Ausnahme der becherförmigen Elemente können die Fahrzeuggetriebe wie die Fahrzeuggetriebe der DE 197 18 744 Cl und der EP 1 234 993 AI ausgebildet sein, welche hiermit vollständig mitumfaßt sein sollen.Possibility to deliver temperature so that it can flow back cooled to the multi-disc brake. With the exception of the cup-shaped elements, the vehicle transmissions can be designed like the vehicle transmissions of DE 197 18 744 Cl and EP 1 234 993 AI, which are hereby to be included in their entirety.
Weitere Merkmale sind der Figuren-Beschreibung zu entnehmen.Further features can be found in the description of the figures.
Die einzige Figur zeigt einen Ausschnitt aus einem Fahrzeuggetriebe mit integrierter Bremse, wie in der DE 197 18 744 Cl dargestellt. Ein Abtriebsflansch 1 ist drehfest mit dem Planetenträger 2 verbunden, welcher einstückig mit einem Lamellenträger 3 verbunden ist. Der Lamellenträger 3 haltert an seinem radial äußeren Umfang die inneren drehenden Lamellen 4 der Lamellenbremse 5. Die äußeren stehenden Lamellen 5 sind drehfest im Getriebegehäuse 6 gehaltert. Durch Betätigung des Kolbens 7 kann die Lamellenbremse im Öffnungs- und Schließsinne betätigt werden. Der Abtriebsflansch 1 ist über eine Lagerung 8 im Getriebegehäuse 6 gelagert . Im radial äußeren Bereich des Planetenträgers 2 weist dieser Ausnehmungen 9 auf, in welchen becherförmige Elemente 10 angeordnet sind. Diese kön- nen entweder mit Befestigungselementen 11 drehfest verbunden oder einstückig mit dem Planetenträger 2 ausgebildet sein. Durch Drehung des Planetenträgers 2 gelangen die becherförmigen Elemente 10, welche vorzugsweise gleichmäßig am Umfang des Planetenträgers 2 angeordnet sind, in einen nicht dargestellten Schmiermittelsumpf, wodurch die becherförmigen Elemente mit Schmiermittel gefüllt werden. Durch weitere Drehung des Planetenträgers 2 gelangt das Schmier- mittel über den Schmiermittelsumpf und wird oberhalb des Schmiermittelsumpfes durch die Schwerkraft und durch die Zentrifugalkraft aus den becherförmigen Elementen 10 geschleudert. Das Schmiermittel gelangt dadurch an die inneren drehenden Lamellen 4 und wird durch Nuten in den inne- ren drehenden Lamellen 4 oder den äußeren stehenden Lamellen 5 gleichmäßig zwischen den Lamellen 4 und 5 verteilt. Durch die Zentrifugalbeschleunigung gelangt das Schmiermittel schließlich in einen Raum 12, welcher am radialen Ende der stehenden äußeren Lamellen 5 angeordnet ist, wodurch' das Schmiermittel über einen Kanal 13 erneut zurück zumThe single figure shows a section of a vehicle transmission with an integrated brake, as shown in DE 197 18 744 Cl. An output flange 1 is rotatably connected to the planet carrier 2, which is integrally connected to a disk carrier 3. The disk carrier 3 holds the inner rotating disks 4 of the disk brake 5 on its radially outer circumference. The outer standing disks 5 are held in the transmission housing 6 in a rotationally fixed manner. By actuating the piston 7, the multi-disc brake can be actuated in the opening and closing directions. The output flange 1 is mounted in the gear housing 6 via a bearing 8. In the radially outer region of the planet carrier 2, this has recesses 9, in which cup-shaped elements 10 are arranged. These can either be connected in a rotationally fixed manner with fastening elements 11 or be formed in one piece with the planet carrier 2. By rotating the planet carrier 2, the cup-shaped elements 10, which are preferably uniform are arranged on the circumference of the planet carrier 2, in a lubricant sump, not shown, whereby the cup-shaped elements are filled with lubricant. By further rotation of the planet carrier 2, the lubricant passes over the lubricant sump and is thrown out of the cup-shaped elements 10 by gravity and centrifugal force above the lubricant sump. The lubricant thereby reaches the inner rotating plates 4 and is evenly distributed between the plates 4 and 5 by grooves in the inner rotating plates 4 or the outer standing plates 5. By the centrifugal acceleration, the lubricant eventually passes into a chamber 12 which is disposed at the radial end of the stationary outer fins 5, whereby 'the lubricant again through a channel 13 back to the
Planetenträger 2 fließen kann. In einer weiteren Ausgestaltungsform ist auf dem Planetenträger 2 mindestens ein Leitelement 14 angeordnet, welches einstückig mit dem Planetenträger 2 oder als gesondertes Bauteil ausgeführt sein kann, und welches bei Drehung des Planetenträgers 2 eine Strömung im Schmiermittelsumpf bewirkt . Durch die Strömung im Schmiermittelsumpf wird das Schmiermittel in unmittelbarer Nähe der Entnahmestelle der becherförmigen Elemente 10 ausgetauscht, wodurch gekühltes Schmiermittel zu den becher- förmigen Elementen 10 gelangt. In einer weiteren Ausgestaltungsform der Erfindung besteht die Möglichkeit, die becherförmigen Elemente an der axialen Seite 15 oder der axialen Seite 16 anzuordnen, wodurch ebenfalls Schmiermittel dem Schmiermittelsumpf entnommen wird und zur inneren Seite der inneren drehenden Lamellen 4 gelangt. Somit ist gewährleistet, dass die Lamellenbremse ausreichend und gleichmäßig mit Schmiermittel bzw. Kühlmittel versorgt wird. Bezugs zeichenPlanet carrier 2 can flow. In a further embodiment, at least one guide element 14 is arranged on the planet carrier 2, which can be made in one piece with the planet carrier 2 or as a separate component, and which causes a flow in the lubricant sump when the planet carrier 2 rotates. Due to the flow in the lubricant sump, the lubricant is exchanged in the immediate vicinity of the removal point of the cup-shaped elements 10, as a result of which cooled lubricant reaches the cup-shaped elements 10. In a further embodiment of the invention, it is possible to arrange the cup-shaped elements on the axial side 15 or the axial side 16, as a result of which lubricant is likewise removed from the lubricant sump and reaches the inner side of the inner rotating lamellae 4. This ensures that the multi-disc brake is adequately and evenly supplied with lubricant or coolant. Reference sign
1 Abtriebsflansch 2 Planetenträger 3 Lamellenträger 4 innere drehende Lamellen 5 äußere stehende Lamellen 6 Getriebegehäuse 7 Kolben 8 Lagerung 9 Ausnehmungen1 output flange 2 planet carrier 3 plate carrier 4 inner rotating plates 5 outer standing plates 6 gear housing 7 pistons 8 bearings 9 recesses
10 becherförmige Elemente10 cup-shaped elements
11 Befestigungselemente11 fasteners
12 Raum12 room
13 Leitung13 line
14 Leitelement14 guide element
15 axiale Seite15 axial side
16 axiale Seite 16 axial side

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Fahrzeuggetriebe mit integrierter Bremse, bei wel- eher ein Lamellenträger (3) mit dem Abtrieb (1) des Getriebes und mit Lamellen (4) der Bremse drehfest verbunden ist, dadurch g e k e n n z e i c hn e t , dass der Lamellenträger (3) mit mindestens einem becherförmigen Element (10) drehfest in Verbindung steht, welches bei Drehung des Lamellenträgers (3) Schmierflüssigkeit aufnimmt und an die Lamellen (4) weiterleitet.1. Vehicle transmission with integrated brake, in which a disk carrier (3) with the output (1) of the transmission and with disks (4) of the brake is rotatably connected, characterized in that the disk carrier (3) with at least one cup-shaped element (10) is non-rotatably connected, which absorbs lubricating liquid when the disk carrier (3) rotates and forwards it to the disk (4).
2. Fahrzeuggetriebe mit integrierter Bremse nach Anspruch 1, dadurch g e k e n n z e i c h n e t , dass der Lamellenträger (3) mit einem Planetenträger (2) eines Planetengetriebes drehfest verbunden oder einstückig mit diesem ausgebildet ist.2. Vehicle transmission with integrated brake according to claim 1, characterized in that the disk carrier (3) is rotatably connected to a planet carrier (2) of a planetary gear or is integrally formed therewith.
3. Fahrzeuggetriebe mit integrierter Bremse nach An- spruch 2, dadurch g e k e n n z e i c h n e t , dass der Planetenträger (2) auf seinem äußeren Umfang Ausnehmungen (9) aufweist, in welchem sich die becherförmigen Elemente (10) befinden. 3. Vehicle transmission with integrated brake according to claim 2, characterized in that the planet carrier (2) has recesses (9) on its outer circumference, in which the cup-shaped elements (10) are located.
4. Fahrzeuggetriebe mit integrierter Bremse nach Anspruch 2, dadurch g e k e n n z e i c h n e t , dass der Planetenträger (2) auf seinem äußeren Umfang Ausnehmungen (9) aufweist, welche als becherförmige Elemente (10) ausgebildet sind. 4. Vehicle transmission with integrated brake according to claim 2, characterized in that the planet carrier (2) has on its outer circumference recesses (9) which are designed as cup-shaped elements (10).
5. Fahrzeuggetriebe mit integrierter Bremse nach Anspruch 1, dadurch g e k e n n z e i c h n e t , dass die becherförmigen Elemente (10) aus einem tiefziehbaren Material hergestellt sind.5. A vehicle transmission with an integrated brake according to claim 1, characterized in that the cup-shaped elements (10) are made from a thermoformable material.
6. Fahrzeuggetriebe mit integrierter Bremse nach Anspruch 2, dadurch g e k e n n z e i c h n e t , dass ein äußeres Zentralrad des Planetengetriebes drehfest mit einem Getriebegehäuse verbunden ist.6. A vehicle transmission with an integrated brake according to claim 2, characterized in that an outer central wheel of the planetary transmission is connected in a rotationally fixed manner to a transmission housing.
7. Fahrzeuggetriebe mit integrierter Bremse nach Anspruch 1, dadurch g e k e n n z e i c hn e t , dass die Lamellen (4, 5) Nuten aufweisen, durch welche die Schmierflüssigkeit strömt.7. A vehicle transmission with an integrated brake according to claim 1, characterized in that the disks (4, 5) have grooves through which the lubricating fluid flows.
8. Fahrzeuggetriebe mit integrierter Bremse nach einem der vorstehenden Ansprüche, dadurch g e k e n n z e i c hn e t , dass' auf dem Lamellenträger (3) oder dem Planetenträger (2) Leitelemente (14) angeordnet sind, welche bei Drehung des Lamellenträgers (2) eine Umwälzung des Schmiermittels bewirken.8. Vehicle transmission with integrated brake according to one of the preceding claims, characterized gekennzeic hn et that ' on the disk carrier (3) or the planet carrier (2) guide elements (14) are arranged, which, when the disk carrier (2) rotates, circulates the lubricant cause.
9. Fahrzeuggetriebe mit integrierer Bremse nach einem der vorstehenden Ansprüche, dadurch g e k e n n - z e i c hn e t , dass das Fahrzeuggetriebe in einer Antriebsachse mit Antriebsräder integriert ist und durch die Leitelemente (14) eine Umwälzung und ein Austausch des Schmiermittels von einer unmittelbaren Umgebung der Bremse mit Schmiermittel in einer Achsbrücke stattfindet. 9. Vehicle transmission with integrated brake according to one of the preceding claims, characterized - zeic hn et that the vehicle transmission is integrated in a drive axle with drive wheels and with the guide elements (14) a circulation and an exchange of the lubricant from an immediate environment of the brake Lubricant takes place in an axle bridge.
EP04765627A 2003-10-25 2004-09-25 Vehicle gearbox with an integrated brake Withdrawn EP1676045A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349905A DE10349905A1 (en) 2003-10-25 2003-10-25 Transmission with integrated brake for motor vehicle has brake plate carrier in communication with bowl-shaped element which during rotation of plate carrier receives lubricating fluid and transmits it to plates
PCT/EP2004/010798 WO2005050052A1 (en) 2003-10-25 2004-09-25 Vehicle gearbox with an integrated brake

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EP1676045A1 true EP1676045A1 (en) 2006-07-05

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EP04765627A Withdrawn EP1676045A1 (en) 2003-10-25 2004-09-25 Vehicle gearbox with an integrated brake

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US (1) US20060243544A1 (en)
EP (1) EP1676045A1 (en)
DE (1) DE10349905A1 (en)
WO (1) WO2005050052A1 (en)

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US20060243544A1 (en) 2006-11-02
WO2005050052A1 (en) 2005-06-02
DE10349905A1 (en) 2005-05-25

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