FR2706562A1 - Device for cooling a geared transmission system, particularly on a tracked vehicle - Google Patents
Device for cooling a geared transmission system, particularly on a tracked vehicle Download PDFInfo
- Publication number
- FR2706562A1 FR2706562A1 FR9307383A FR9307383A FR2706562A1 FR 2706562 A1 FR2706562 A1 FR 2706562A1 FR 9307383 A FR9307383 A FR 9307383A FR 9307383 A FR9307383 A FR 9307383A FR 2706562 A1 FR2706562 A1 FR 2706562A1
- Authority
- FR
- France
- Prior art keywords
- cooling
- reduction gear
- reducer
- wall
- heat transfer
- 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.)
- Granted
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/12—Arrangement, location, or adaptation of driving sprockets
- B62D55/125—Final drives
-
- 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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
-
- 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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
DISPOSITIF DE REFROIDISSEMENT D'UN SYSTEME DE
TRANSMISSION A ENGRENAGES, EN PARTICULIER SUR UN VEHICULE
CHENILLE
L'invention concerne un dispositif de refroidissement d'un système de transmission à engrenages, tel en particulier qu'un réducteur d'entraînement d'un barbotin sur un véhicule à chenilles ou à roues.COOLING DEVICE OF A HEATING SYSTEM
GEAR TRANSMISSION, PARTICULARLY ON A VEHICLE
CATERPILLAR
The invention relates to a device for cooling a transmission system with gears, such as in particular a reduction gear for driving a gypsy on a tracked or wheeled vehicle.
I1 est déjà connu de prévoir dans un tel réducteur, qui est par exemple du type épicycloïdal, un circuit interne de refroidissement -par circulation d'un liquide caloporteur. I1 is already known to provide in such a reducer, which is for example of the planetary type, an internal cooling circuit - by circulation of a heat transfer liquid.
Toutefois, dans certaines conditions d'utilisation du véhicule, il est souhaitable d'augmenter le refroidissement du réducteur, par exemple en raison d'une température extérieure élevée. However, under certain conditions of use of the vehicle, it is desirable to increase the cooling of the reduction gear, for example due to a high outside temperature.
L'invention a pour but d'apporter une solution simple, efficace et peu coûteuse à ce problème. The invention aims to provide a simple, effective and inexpensive solution to this problem.
Elle propose à cet effet un dispositif de refroidissement d'un système de transmission à engrenages, tel en particulier qu'un réducteur d'entraînement d'un barbotin sur un véhicule à chenilles ou à roues, ce réducteur comprenant un circuit interne de refroidissement dans lequel circule un liquide caloporteur, caractérisé en ce qutil comprend des moyens, extérieurs au réducteur, de refroidissement par circulation forcée d'air sur au moins une surface externe d'une paroi du réducteur au voisinage de laquelle ledit circuit est partiellement disposé. To this end, it proposes a device for cooling a transmission system with gears, such as in particular a reduction gear for driving a gypsy on a tracked or wheeled vehicle, this reduction unit comprising an internal cooling circuit in which circulates a heat transfer liquid, characterized in that it comprises means, external to the reducer, for cooling by forced circulation of air on at least one external surface of a wall of the reducer in the vicinity of which said circuit is partially arranged.
Le dispositif selon l'invention permet ainsi d'améliorer le refroidissement du liquide caloporteur qui circule dans le circuit interne du réducteur, et donc d'améliorer le refroidissement du réducteur
Selon une autre caractéristique de l'invention, les moyens de circulation forcée d'air comprennent une roue à ailettes montée à l'extérieur du réducteur sur un arbre rotatif de celui-ci, par exemple sur l'arbre d'entrée.The device according to the invention thus makes it possible to improve the cooling of the heat transfer liquid which circulates in the internal circuit of the reducer, and therefore to improve the cooling of the reducer
According to another characteristic of the invention, the means of forced air circulation comprise a fin wheel mounted outside the reduction gear on a rotary shaft of the latter, for example on the input shaft.
Avantageusement, cette roue à ailettes est as sociée à un stator monté sur ladite paroi du réducteur et comportant des aubes de guidage d'air. Advantageously, this impeller is associated with a stator mounted on said wall of the reducer and comprising air guide vanes.
De préférence, la paroi précitée du réducteur constitue une paroi d'un réservoir de liquide caloporteur. Preferably, the aforementioned wall of the reducer constitutes a wall of a reservoir of heat-transfer liquid.
Le dispositif selon l'invention présente l'avantage de se monter facilement sur un réducteur1 sans augmenter notablement l'encombrement de celui-ci et sans consommer sensiblement d'énergie pour son fonctionnement. The device according to the invention has the advantage of being easily mounted on a reducer1 without significantly increasing the size thereof and without consuming substantially energy for its operation.
L'invention sera mieux comprise et d' autres caractéristiques, détails et avantages de celle-ci apparaitront plus clairement à la lecture de la description qui suit, faite à titre d'exemple en référence au dessin annexé, qui est une vue schématique partielle en coupe axiale d'un réducteur d'entraînement de barbotin équipé d'un dispositif de refroidissement selon l'invention. The invention will be better understood and other characteristics, details and advantages thereof will appear more clearly on reading the description which follows, given by way of example with reference to the appended drawing, which is a partial schematic view in axial section of a gypsy drive reducer equipped with a cooling device according to the invention.
Dans ce dessin, la référence 10 désigne un moyeu de barbotin qui est entraîné en rotation autour de son axe longitudinal 12 par un réducteur à engrenages, notamment du type épicycloldal, comprenant un arbre d'entrée 14 entraîné par un organe moteur en rotation autour de l'axe 12, des pignons satellites (non représentés) interposés entre un pignon planétaire entraîné par l'arbre 14 et une grande couronne 16 fixe en rotation et supportant le moyeu de barbotin 10 par l'intermédiaire de roulements 18, et un arbre de sortie. In this drawing, the reference 10 designates a gypsy hub which is rotated about its longitudinal axis 12 by a gear reducer, in particular of the epicyclic type, comprising an input shaft 14 driven by a motor member in rotation around the axis 12, planet gears (not shown) interposed between a planetary gear driven by the shaft 14 and a large ring 16 fixed in rotation and supporting the gypsy hub 10 by means of bearings 18, and a shaft exit.
De façon déjà connue, le réducteur comporte un circuit interne de lubrification à circulation d'un liquide caloporteur tel que de l'huile par exemple, ce circuit interne comprenant une pompe 20 entraînée en rotation par un moyen approprié du réducteur et reliée par des conduits 22 à un réservoir 24 de liquide caloporteur, prévu par exemple dans la grande couronne 16 du réducteur, les conduits 22 étant agencés notamment dans l'arbre de sortie du réducteur ainsi que dans le moyeu 10 du barbotin qui est entraîné en rotation par cet arbre de sortie. In a manner already known, the reduction gear comprises an internal lubrication circuit with circulation of a heat-transfer liquid such as oil for example, this internal circuit comprising a pump 20 driven in rotation by an appropriate means of the reduction gear and connected by conduits 22 to a reservoir 24 of heat transfer liquid, provided for example in the large crown 16 of the reduction gear, the conduits 22 being arranged in particular in the output shaft of the reduction gear as well as in the hub 10 of the gypsy which is rotated by this shaft Release.
Ce circuit interne de lubrification par circulation d'huile fait partie de la technique antérieure et n'a pas à être décrit ici plus en détail. This internal oil circulation lubrication circuit is part of the prior art and need not be described here in more detail.
Selon l'invention, des moyens extérieurs de refroidissement sont associés au circuit interne de lubrification du réducteur, et sont du type à circulation forcée d'air sur la grande couronne 16, au niveau du réservoir 24 de liquide caloporteur qui est rapporté et fixé sur cette grande couronne. According to the invention, external cooling means are associated with the internal lubrication circuit of the reduction gear, and are of the type with forced circulation of air over the large ring 16, at the level of the reservoir 24 of heat transfer liquid which is attached and fixed this great crown.
Ces moyens comprennent une roue de turbine 26 comportant des aubes radiales 28 et qui est montée sur l'arbre d'entrée 14 au voisinage immédiat de la face extérieure 29 du réservoir 24. Un stator 30 portant des aubes radiales 32 obliques ou incurvées de guidage d'air est monté fixement sur la face externe du réservoir 24, autour de l'arbre d'entrée 14 et de la roue de turbine 26, de telle sorte que cette roue de turbine puisse tourner à l'intérieur du stator 30. These means comprise a turbine wheel 26 comprising radial vanes 28 and which is mounted on the input shaft 14 in the immediate vicinity of the external face 29 of the tank 24. A stator 30 carrying oblique or curved radial guide vanes 32 of air is fixedly mounted on the external face of the reservoir 24, around the input shaft 14 and the turbine wheel 26, so that this turbine wheel can rotate inside the stator 30.
L'ensemble roue de turbine 26 - stator 30 est dimensionné pour que le stator 30 et ses aubes 32 de guidage d'air se trouvent au niveau de la face externe du réservoir 24 de liquide caloporteur. The turbine wheel 26 - stator 30 assembly is dimensioned so that the stator 30 and its air guide vanes 32 are located at the external face of the reservoir 24 of heat transfer liquid.
De cette façon, la roue de turbine 26 qui est entraînée en rotation par l'arbre d'entrée 14 du réducteur, fait circuler un débit élevé d'air dans les canaux formés par les aubes incurvées ou obliques du stator 30. In this way, the turbine wheel 26 which is rotated by the input shaft 14 of the reduction gear, circulates a high flow of air in the channels formed by the curved or oblique blades of the stator 30.
Cet air circule sur la face extérieure du réservoir 24 et du stator 30 lui-même, ce qui permet de refroidir de fa çon relativement importante le liquide calopoteur contenu dans ce réservoir 24. Cela se traduit donc par un meilleur refroidissement du réducteur et du moyeu 10 de barbotin. This air circulates on the external face of the reservoir 24 and of the stator 30 itself, which makes it possible to cool relatively considerably the heat-transfer liquid contained in this reservoir 24. This therefore results in better cooling of the reduction gear and of the hub 10 of gypsy.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9307383A FR2706562B1 (en) | 1993-06-18 | 1993-06-18 | Cooling device for a gear transmission system, in particular on a tracked vehicle. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9307383A FR2706562B1 (en) | 1993-06-18 | 1993-06-18 | Cooling device for a gear transmission system, in particular on a tracked vehicle. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2706562A1 true FR2706562A1 (en) | 1994-12-23 |
FR2706562B1 FR2706562B1 (en) | 1995-08-11 |
Family
ID=9448290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9307383A Expired - Fee Related FR2706562B1 (en) | 1993-06-18 | 1993-06-18 | Cooling device for a gear transmission system, in particular on a tracked vehicle. |
Country Status (1)
Country | Link |
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FR (1) | FR2706562B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3285328A (en) * | 1964-12-30 | 1966-11-15 | United Shoe Machinery Corp | Cooling cover assemblies |
DE1932880A1 (en) * | 1969-06-28 | 1971-01-07 | Hanning Elektro Werke | Gear motor with epicyclic gearbox in front |
US3768276A (en) * | 1972-04-10 | 1973-10-30 | Caterpillar Tractor Co | Air-cooled resilient coupling assembly |
US4131169A (en) * | 1976-06-30 | 1978-12-26 | Zahnradfabrik Friedrichshafen Aktiengesellschaft | Mounting for traction member with lateral step-down transmission |
DE3606963A1 (en) * | 1985-03-15 | 1986-09-25 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Machine housing shell as an oil cooler |
-
1993
- 1993-06-18 FR FR9307383A patent/FR2706562B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3285328A (en) * | 1964-12-30 | 1966-11-15 | United Shoe Machinery Corp | Cooling cover assemblies |
DE1932880A1 (en) * | 1969-06-28 | 1971-01-07 | Hanning Elektro Werke | Gear motor with epicyclic gearbox in front |
US3768276A (en) * | 1972-04-10 | 1973-10-30 | Caterpillar Tractor Co | Air-cooled resilient coupling assembly |
US4131169A (en) * | 1976-06-30 | 1978-12-26 | Zahnradfabrik Friedrichshafen Aktiengesellschaft | Mounting for traction member with lateral step-down transmission |
DE3606963A1 (en) * | 1985-03-15 | 1986-09-25 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Machine housing shell as an oil cooler |
Also Published As
Publication number | Publication date |
---|---|
FR2706562B1 (en) | 1995-08-11 |
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ST | Notification of lapse | ||
ST | Notification of lapse |