DE2926425A1 - Mechano-hydrostatic drive with divided output - has differential with planet carrier and driven shaft coupled to hydrostatic pump or motor - Google Patents
Mechano-hydrostatic drive with divided output - has differential with planet carrier and driven shaft coupled to hydrostatic pump or motorInfo
- Publication number
- DE2926425A1 DE2926425A1 DE19792926425 DE2926425A DE2926425A1 DE 2926425 A1 DE2926425 A1 DE 2926425A1 DE 19792926425 DE19792926425 DE 19792926425 DE 2926425 A DE2926425 A DE 2926425A DE 2926425 A1 DE2926425 A1 DE 2926425A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrostatic
- shaft
- gear
- machine
- output
- 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.)
- Ceased
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
- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
- F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
- B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
-
- 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
- F16H43/00—Other fluid gearing, e.g. with oscillating input or output
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members 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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
- F16H2047/045—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion the fluid gearing comprising a plurality of pumps or motors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Retarders (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
Description
Die Erfindung betrifft ein hydrostatisch-mechanisches Getriebe gemäß ober-The invention relates to a hydrostatic-mechanical transmission according to upper-
begriff es Patentanspruches 1. Sie geht dabei von einer durch die DE-OS 27 16 960 bekannten Getriebeanordnun'j aus, bei cer allerdings zur Speicherung von Oberschußenergie ein Schwungrad vorgesehen ist.it understood patent claim 1. It goes from one through the DE-OS 27 16 960 known Getriebeanordnun'j, in cer, however, for storage a flywheel is provided from excess energy.
Aufgabe der Erfindung ist es, eine baulich einfache Ausführung eines hydrostatisch-mechanischen Getriebe zu schaffen für eine Antriebsanordnung, bei der Oberschußenergie zur Aufladung eines Druckspeichers benutzt wird und durch Entladen des Druckspreichers wieder zurückgeführt werden kann.The object of the invention is to provide a structurally simple design of a to create hydrostatic-mechanical transmission for a drive arrangement, at the excess energy is used to charge a pressure accumulator and by discharging it of the pressure accumulator can be returned.
Insbesondere ist die Erfindung flir den Einsatz in einem Kraftfahrzeug vorzugweise einem Linienbus, gedacht und soll den dort auftretenden Betriebsbedingungen gerecht werden.In particular, the invention is for use in a motor vehicle preferably a bus, thought and should take account of the operating conditions that occur there satisfy.
Im einzelnen bestand die Aufgabe auch darin, ein über ciiicn bestimmten Geschwindigkeitsbereich stufenlos arbeitendes mechanisches Leitsungsverzweigungsgetriebe zu schaffen, weches mechanisch mit der Antriebmaschine verbunden ist und vom Stillstand auspehend wit zunehmender Fahrgeschwindigkeit eine linderung des hydraulischen Leitstungszweiges brirlt. Für bestimmte Fahrzustände sollte es möglich sein, die yesarite mechanische Leistung der Antriebsmaschine in direkter kineinatischer Verbindung auf die Abtriebswelle zu übertragen.In detail, the task also consisted of finding a certain Speed range continuously working mechanical line branching gear to create weches mechanically connected to the prime mover and from a standstill exhausting with increasing driving speed a relief of the hydraulic line branch roars. For certain driving conditions it should be possible to use the yesarite mechanical Power of the prime mover in direct kinematic connection to the output shaft transferred to.
Erfindungsgemäß wirdn daher vorgeschlagen, das hydrostatisch-mechanische Getriebe gemäß den im Patentanspruch 1 niedergelegten Merkrnalen zu gestalten.According to the invention, it is therefore proposed that the hydrostatic-mechanical To design gear according to the characteristics laid down in claim 1.
Auf Ausestaltungen der Erfindun3 gemäß den Unteransprüchen, insbesondere auf die besonders vorteilhafte Anordnung der hydrostatischen Maschinen gemäß Anspruch 2, wird verwiesen. Durch die Erfindunq ist eine besonders kompakte und damit kostengüngstige Ausführung eines hydrostatisch-mechanischen Getriebes geschaffen worden, welches in der nach den Unteransprüchen gestalteten Ausführung eine Trennung des mechanischen und des hydraulischen Teiles bringt, also die Fertigung eines rein mechanischen Getriebes ermöglicht. an das dann zur Komplettierung des Systems lediglich die hydrostatischen Einheiten anzuflanschen sind Im nachfolgenden wird die Erfindung anhand der beigefügten Figuren beschrieben. Davon zeigt Fi.j. 1 eine Systemskizze des hydrostatisch-mechanischen Getriebes Fig. 2 einen Schnitt durch den mechanischen Teil eines Getriebes, ohne die hydrostatischen Einheiten Fig 3 eine Ansicht des Getriebes nach Fig. 2 von der Abtriebswelle aus gesehen.On embodiments of the invention according to the subclaims, in particular to the particularly advantageous arrangement of the hydrostatic machines according to claim 2, is referred. The invention makes a particularly compact and therefore inexpensive one Execution of a hydrostatic-mechanical transmission has been created, which in the embodiment designed according to the subclaims, a separation of the mechanical and the hydraulic part, i.e. the production of a purely mechanical one Transmission enables. then only the hydrostatic ones to complete the system Units are to be flanged on In the following the invention described with reference to the accompanying figures. Fi.j. 1 a system sketch of the hydrostatic-mechanical transmission Fig. 2 shows a section through the mechanical Part of a transmission without the hydrostatic units Fig. 3 is a view of the Transmission according to FIG. 2 seen from the output shaft.
Das in Fig. 1 dargestellte hydrostatisch-mechanische Getriebe enthält eine Antriebswelle 17, die an eine Motorwelle 39 angeschlossen ist, ferner eine Abtriebswelle 10, verbunden mit einer Kardanwelle 40, die das Getriebe mit der treibenden Achse eines Fahrzeuges verbindet.The hydrostatic-mechanical transmission shown in Fig. 1 contains a drive shaft 17, which is connected to a motor shaft 39, also a Output shaft 10, connected to a cardan shaft 40, which the transmission with the driving Axis of a vehicle connects.
Es ist ein Umlaufradergetriebe 1 vorgesehen und als Differenzial ausgebildet, dessen Zentralrader 18,19 einander mit Abstand gegenüberliegend auf.A planetary gear 1 is provided and designed as a differential, whose central wheels 18,19 are opposite each other at a distance.
den inneren Wellenenden der Antriebswelle 17 und der Abtriebswelle 10 sitzen. Zum Umlaufradergetriebe 1 gehört ein Planetensteg 2, der Init den Zentragrädern 18,19 kammende Planetenradpaare 3 trägt, deren Einzelräder 20,21 drehfest miteinander verbunden sind und unterschiedliche Teilkreisdurchmesser aufweisen.the inner shaft ends of the drive shaft 17 and the output shaft 10 seats. A planetary web 2 belongs to the epicyclic gear 1, the init the centric gears 18,19 combing planetary gear pairs 3 carries the individual gears 20,21 rotatably with each other are connected and have different pitch circle diameters.
Ani antrlebsseltigen Ende des Planetensteges ist eine Bremse 8 mit Innenlamellen Da und AuSenlan:ellen 9b vorgesehen, wobei sich die Außenlamellen 9b am getriebegehause 22 abstützen.At antrlebsseltigen end of the planetary web is a brake 8 with Inner disks Da and AuSenlan: ellen 9b provided, whereby the outer disks Support 9b on the transmission housing 22.
Abtriebsseitig sitzt auf dei Planetensteg ein Zahnrad 4, welches mit einem weiteren Zahnrad 28 auf einer an eine erste hydrostatische Maschine 7 anschließbare Welle 5 sitzt. Die Welle 5 ist antriebsseitig mit einem Frei-Tauf 6 ausgerüstet.On the output side sits a gear 4 on the planetary web, which with a further gear 28 on a one that can be connected to a first hydrostatic machine 7 Wave 5 is seated. The shaft 5 is equipped with a free baptism 6 on the drive side.
Auf der Abtriebstielle 10 ist ein weiteres Zahnrad 12 angeordnet, welches rnit Gegenrädern 13,13' irn Zahneingriff steht. Die Gegenräder 13,13' sind an zwei zweite hydrostatische Maschinen 11,11' angeschlossen.A further gear wheel 12 is arranged on the output shaft 10, which meshes with mating gears 13, 13 '. The counter gears 13,13 'are connected to two second hydrostatic machines 11, 11 '.
Antriebsseitig ist weiterhin über ein Zahnrad 26,27 eine Schmiermittelpumpe 24 angeschlossen.On the drive side, there is also a lubricant pump via a gear 26, 27 24 connected.
Der hydraulische Teil besteht aus der ersten hydrostatischen Maschine 7, einer verstellbaren hydrostatischen Pumpe und den beiden, sowohl als hydrostatische Pumpe wie auch als hydrostatischer Motor wirkenden zweiten hydrostatischen Maschinen 11,11', denen entsprechende Hydraulikleitungen 29, 30, 31, 32, 33, 34, ein liochdruckspeicher 35 und ein Niederdruckbehälter 36 zugeordnet sind.The hydraulic part consists of the first hydrostatic machine 7, an adjustable hydrostatic pump and the two, both as hydrostatic Pump as well as second hydrostatic machines acting as a hydrostatic motor 11,11 ', to which corresponding hydraulic lines 29, 30, 31, 32, 33, 34, a liochdruckspeicher 35 and a low-pressure tank 36 are assigned.
Im nachfolgenden wird anhand von Fig. 1 die Funktion des Antriebssyster.is beschrieben.In the following, the function of the drive system is explained with reference to FIG described.
Wir der ;otor des Fahrzeuges angelassen, so treibt die Motorwelle 39 bei geöffneter Bremse 22 die Antriebswelle 10 und, da das Fahrzeug und damit die Abtriebswelle 10 noch steht, über den Planetensteg 2 die erste hydrostatische Maschine 7, die Hydrauliköl aus dem Niederdruckbehälter in den Hochdruckspeicher 35 fördert und diesen auflädt.If the engine of the vehicle is started, the motor shaft drives 39 with the brake 22 open, the drive shaft 10 and, as the vehicle and thus the output shaft 10 is still standing, the first hydrostatic one via the planetary web 2 Machine 7, the hydraulic oil from the low pressure tank into the high pressure accumulator 35 promotes and charges it.
Zum Anfahren des Fahrzeuges wird der Hochdruckspeicher, sofern er bereits hinreichend gefüllt ist bzw. die hydrostatische Maschine 7 auf die zweiten hydrostatischen Maschinene 11, 11' geschaltet, wobei diese nun über die Gegenräder 13,13' und das Zahnrad 12 die Abtriebswelle 10 in Bewegung setzen. Durch entsprechendes Hochregeln der hydrostatischen Maschinen 11,11' kann die Drehzahl der Abtriebswelle 10 stufenlos von 0/min an crhöht werden.The high-pressure accumulator is used to start the vehicle, if it is is already sufficiently filled or the hydrostatic machine 7 on the second hydrostatic machines 11, 11 'switched, these now via the mating gears 13,13 'and the gear 12 set the output shaft 10 in motion. By appropriate The speed of the output shaft can be increased by the hydrostatic machines 11, 11 ' 10 can be increased continuously from 0 / min.
Mit zunehmender Drehzahl der Abtriebswelle 10 vermindert sich die Drehzahl des Planetensteges 2, bis bei einer vorgegebenen Minderstdrehzahl der A triebswelle 10 der Planetensteg 2 zum Stillstand konit. Nun wird die Bremse 22 eingeschaltet, die den Stillstand des Planetensteges 2 fixiert und die (ibertragunef des Drehmomentes erfolgt unmittelbar von der Antriebswelle 17 auf die Abtriebswelle 10, der hydrostatische Teil ist nunnlehr am Antrieb selbst nicht mehr beteiligt. Die zweiten hydrostatischen Maschinen 11,11' erden in die Null-Lage geschwenkt, so daß die gesamte Antriebsleistung über den mechanischen Teil des Getriebes geht.With increasing speed of the output shaft 10, the decreases Speed of the planetary web 2, up to a given minimum speed of the A Drive shaft 10 of the planetary web 2 conit to a standstill. Now the brake 22 is switched on, which fixes the standstill of the planetary web 2 and the (ibertragunef of the torque takes place directly from the drive shaft 17 to the output shaft 10, the hydrostatic one Part is no longer involved in the drive itself. The second hydrostatic Machines 11, 11 'are swiveled into the zero position, so that the entire drive power goes through the mechanical part of the transmission.
Wenn das Fahrzeug abgebremst wird, und damit oberschußenergie zur Verfugung steht, werden die zweiten hydrostatischen Maschinen II,II' wieder ausgeschwenkt und arbeiten nun als Pumpen, angetrieben über die Abtriebswelle 10 und die Gegenrader 13,13'. Sie fördern dabei Drucköl vorn Nieder druckbehalter 35 in den Hochdruckspreicher 35 und laden diesen auf. Diese gespeicherte Energie kann für den nachsten Beschleunfgungsvorgang verwendet werden.When the vehicle is braked, and thus excess energy The second hydrostatic machines II, II 'are swiveled out again and now work as pumps, driven by the output shaft 10 and the mating gears 13.13 '. They promote pressure oil from the front low pressure tank 35 in the high pressure cleaner 35 and charge it. This stored energy can be used for the next acceleration process be used.
In Fig. 2 ist der mechanische Teil des in Fig. 1 dargestellten Getriebes ausgezeichnet. Dieses ist dabei so ausgebuíldet, daß die hydrostatischen Maschinen in Dreiccksanordnung (Fig. 3) um die Abtriebswelle 10 herum angeordnet werden können. Im übrigen tragt die Atriebswelle 10 eine mit einem Anschlußflansch versehene Hülse 15.In Fig. 2 the mechanical part of the transmission shown in Fig. 1 is excellent. This is so trained that the hydrostatic machines can be arranged around the output shaft 10 in a triangular arrangement (FIG. 3). In addition, the drive shaft 10 carries a sleeve provided with a connecting flange 15th
Die Welle 5 mit Anschlußmitteln 7a zum Einstecken der ersten hydrostatischen -aschine 7 ist zweifach, nämlich über Lager 37 und 38 beidseits des Zahnrades 25 in detriebegehäuse 22 gelagert. Antriebsseitig ist neben den Lager 33 der Freilauf 6 angeordnet, abtriebsseitig erstreckt sich die Welle 5 in Richtung auf die abtriebsseitige Stirnfläche 14 des Getriebegehäuses 22.The shaft 5 with connecting means 7a for plugging in the first hydrostatic machine 7 is twofold, namely via bearings 37 and 38 on both sides of gear 25 stored in gear housing 22. On the drive side, in addition to the bearing 33, the freewheel is located 6 arranged, on the output side, the shaft 5 extends in the direction of the output side End face 14 of gear housing 22.
Das Gengerad 13, wie auch das hier nicht dargestellte Gegenrad 13', ist in richtung auf die Stirnfläche 14 verlängert und dieser Verlängerung mit Anschlußmitteln 11a für die zweite hydrostatische Maschine .1 versehen.The gene line 13, as well as the mating wheel 13 ', not shown here, is extended in the direction of the end face 14 and this extension with connecting means 11a for the second hydrostatic machine .1 provided.
L e e r s e i t eL e r s e i t e
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792926425 DE2926425A1 (en) | 1979-06-28 | 1979-06-28 | Mechano-hydrostatic drive with divided output - has differential with planet carrier and driven shaft coupled to hydrostatic pump or motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792926425 DE2926425A1 (en) | 1979-06-28 | 1979-06-28 | Mechano-hydrostatic drive with divided output - has differential with planet carrier and driven shaft coupled to hydrostatic pump or motor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2926425A1 true DE2926425A1 (en) | 1981-01-08 |
Family
ID=6074566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792926425 Ceased DE2926425A1 (en) | 1979-06-28 | 1979-06-28 | Mechano-hydrostatic drive with divided output - has differential with planet carrier and driven shaft coupled to hydrostatic pump or motor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2926425A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748435A (en) * | 2012-07-23 | 2012-10-24 | 福建省福工动力技术股份公司 | Planetary gear transmission based on double brakes |
NL2011584C2 (en) * | 2013-10-10 | 2015-04-13 | Vredo Beheer B V | Transmission. |
-
1979
- 1979-06-28 DE DE19792926425 patent/DE2926425A1/en not_active Ceased
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748435A (en) * | 2012-07-23 | 2012-10-24 | 福建省福工动力技术股份公司 | Planetary gear transmission based on double brakes |
CN102748435B (en) * | 2012-07-23 | 2015-06-17 | 福建省福工动力技术有限公司 | Planetary gear transmission based on double brakes |
NL2011584C2 (en) * | 2013-10-10 | 2015-04-13 | Vredo Beheer B V | Transmission. |
EP2860426A1 (en) * | 2013-10-10 | 2015-04-15 | Vredo Beheer B.V. | Hydro-mechanical transmission |
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Legal Events
Date | Code | Title | Description |
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OAP | Request for examination filed | ||
OD | Request for examination | ||
8125 | Change of the main classification |
Ipc: B60K 17/06 |
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8131 | Rejection |