DE811650C - Spur gear differential gear for motor vehicles - Google Patents
Spur gear differential gear for motor vehiclesInfo
- Publication number
- DE811650C DE811650C DEP27481D DEP0027481D DE811650C DE 811650 C DE811650 C DE 811650C DE P27481 D DEP27481 D DE P27481D DE P0027481 D DEP0027481 D DE P0027481D DE 811650 C DE811650 C DE 811650C
- Authority
- DE
- Germany
- Prior art keywords
- gear
- differential
- gears
- spur gear
- smaller
- 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.)
- Expired
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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
-
- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
- F16H48/11—Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
-
- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
- F16H2048/106—Differential gearings with gears having orbital motion with orbital spur gears characterised by two sun gears
Description
Die Herstellung der bekannten Kegelrad-Differentialgetriebe ist sehr teuer, weil das Verzahnen und der Einbau der Kegelräder sowie die Herstellung der rechtwinklig zueinander stehenden Bohrungen für die Lagerung der Differentialachsen im Differentialgehäuse schwierig und umständlich sind und größte Genauigkeit erfordern, um eine gleichmäßige Belastung aller Kegelräder , zu gewährleisten. Zur Verbilligung der Fertigung und Vereinfachung des Zusammenbaues wurden schon Stirnrad-Differentialgetriebe vorgeschlagen, die sich in der Praxis aber nicht einführen konnten, weil sie fast die doppelte Baubreite erforderten und sich deshalb in die beschränkten Raumverhältnisse des Achsantriebes nicht einordnen ließen.The production of the well-known bevel gear differentials is very expensive, because the gearing and the installation of the bevel gears as well as the manufacture of the at right angles to each other bores for the storage of the differential axles are difficult and cumbersome in the differential housing and require the greatest possible accuracy, to ensure an even load on all bevel gears. For cheaper The manufacture and simplification of the assembly were already spur gear differentials suggested, which could not be introduced in practice because they almost required twice the overall width and therefore fit into the limited space of the final drive could not be classified.
Zur Beseitigung dieser Mängel schlägt die Erfindung ein neues, billiges Stirnrad-Differentialgetriebe vor, dessen Baubreite nicht größer ist als beim Kegelrad-Differential und sich dadurch den normalen Baumaßen des Achsantriebes angleicht. 'Zur Lösung dieser Aufgabe sind die Differentialwellenstirnräder erfindungsgemäß mit kleinstem Abstand nebeneinander angeordnet und wie ihre Umlaufräder mit entsprechend gleichen Zähnezahlen, jedoch verschiedenem Zahnmodul ausgeführt, wobei das kleinere Differentialwellenstirnrad mit den kleineren Umlaufrädern durch ein Zwischenrad im Eingriff steht und. die unmittelbar nebeneinanderliegenden, mit verschiedenem Modul ausgeführten Umlaufräder je ein ganzes Doppelrad bilden.To remedy these shortcomings, the invention proposes a new, inexpensive one Spur gear differential gear, the overall width of which is not larger than that of the bevel gear differential and thereby adapts to the normal dimensions of the final drive. 'To the solution this task are the differential shaft spur gears according to the invention with the smallest Spaced next to each other and like their planetary gears with the same accordingly Number of teeth, but with a different tooth module, with the smaller differential shaft spur gear is in engagement with the smaller planetary gears through an intermediate gear and. the Revolving gears that are located directly next to one another and have a different module each form a complete double wheel.
Die Abb. i und 2 zeigen die beispielsweise Ausführung eines Stirnrad-Differentialgetriebes gemäß der Erfindung im Querschnitt und Seitenriß. Es besteht aus zwei unmittelbar nebeneinanderliegenden Differentialwellenstirnrädern a und b, drei Doppelrädern c-d und drei Zwischenrädern e, die in den Differentialgehäusehälften f und g lagern. Letztere, f, g, sind mit dem Antriebszahnkranz h durch Schrauben i verbunden und auf zwei Kugellagern k im Achsgehäuse l gelagert. Das linke Differentialwellenstirnrad a sitzt auf der linken Differentialwelle m. Es besitzt beispielsweise einundzwanzig Zähne mit Modul 4,5 und steht mit dem Zwischenrad e im Eingriff, das dreizehn Zähne mit Modul 4,5 besitzt. Letzteres e steht mit dem linken Umlaufrad c im Eingriff, das elf Zähne mit Modul 4,5 besitzt. Das Umlaufrad c bildet mit dem rechten Umlaufrad d ein Ganzes. Dieses besitzt elf Zähne mit Modul 5 und steht mit dem rechten Differentialwellenstirnrad b im Eingriff. Letzteres hat einundzwanzig Zähne mit Modul 5 und sitzt auf der rechten Differentialwelle n. Die Kopfkreisdurchmesser der Stirnräder a und c sind so ausgeführt, daß zwischen ihnen etwa i bis 2 mm Spiel bleibt. Die Doppelzahnräder c-d werden gefräst oder gestoßen, wobei das größere Zahnrad d immer gefräst werden kann, weil die Zähne und Lücken der Radhälften c und d auf gleicher Mitte liegen und dadurch ein durchlaufendes Fräsen gestatten. Die Gehäusehälften f und g können an Stelle des Stirnradkranzes h auch einen Kegelrad- oder Schnekkenradkranz tragen und für ihre Befestigung nach Bedarf auch symmetrisch oder anders gestaltet sein. Da die relative Drehbewegung aller Zahnräder a bis e sehr gering ist, können die Kopfkreisdurchmesser der Zahnräder a und c kleiner als normalerweise ausgefühit werden, um den Unterschied der Teilkreisdurchmesser der Differentialwellenstimräder a und b möglichst klein und dadurch fast gleiche Zahndrücke zu erhalten. Die Drehmomente der Differentialwellen m und n sind immer gleich, da die Zähnezahlen der Differentialwellenstirnräder a, b einerseits und der Doppelumlaufräder c, d andererseits immer gleich sind.Figs. I and 2 show the exemplary embodiment of a spur gear differential gear according to the invention in cross section and side elevation. It consists of two differential shaft spur gears a and b, three double gears cd and three intermediate gears e, which are located in the differential housing halves f and g . The latter, f, g, are connected to the drive ring gear h by screws i and mounted on two ball bearings k in the axle housing l. The left differential shaft spur gear a sits on the left differential shaft m. It has, for example, twenty-one teeth with module 4.5 and meshes with the intermediate gear e, which has thirteen teeth with module 4.5. The latter e is in engagement with the left planetary gear c, which has eleven teeth with module 4.5. The planet wheel c forms a whole with the right planet wheel d. This has eleven teeth with module 5 and meshes with the right differential shaft spur gear b. The latter has twenty-one teeth with module 5 and sits on the right differential shaft n. The tip diameter of the spur gears a and c are designed so that there is about 1 to 2 mm clearance between them. The double gears cd are milled or pushed, whereby the larger gear d can always be milled because the teeth and gaps of the wheel halves c and d are on the same center and thus allow continuous milling. The housing halves f and g can also have a bevel gear or worm gear rim instead of the spur gear rim h and can also be designed symmetrically or differently for their attachment as required. Since the relative rotational movement of all gears a to e is very small, the tip diameter of the gears a and c can be made smaller than normal in order to keep the difference between the pitch circle diameters of the differential shaft timing gears a and b as small as possible and thus almost the same tooth pressures. The torques of the differential shafts m and n are always the same, since the number of teeth of the differential shaft spur gears a, b on the one hand and the double planetary gears c, d on the other hand are always the same.
Eine wesentliche Verbilligung des Stirnraddifferentiales wird gegenüber dem Kegelraddifferential nicht nur durch die billigere Verzahnungsweise der Stirnräder, sondern auch durch die verbilligte Herstellung der Bohrungen der Differentialgehäusehälften f und g erreicht, da alle Bohrungen parallel liegen und mittels Mehrspindelbohrkopf gleichzeitig gebohrt werden können. Für langsamlaufende Ackerschlepper mit großen. Antriebszahnkränzen h können die Differentialwellenstirnräder a, b so groß ausgeführt und dadurch die Zahndrücke so vermindert werden, daß zwei um i8o° versetzt liegende Doppelstirnräder c-d und Zwischenräder e ausreichen. Nach Abb. i sind die Umlaufräder c, d und e mit ihren in den Gehäusehälften lagernden Zapfen aus einem Stück ausgeführt. An Stelle der Zapfen können in den Gehäusehälften auch feststehende Bolzen eingebaut werden, auf denen sich die ausgebohrten Umlaufräder lose drehen.The spur gear differential is significantly cheaper than the bevel gear differential not only due to the cheaper toothing of the spur gears, but also due to the cheaper production of the bores in the differential housing halves f and g , since all bores are parallel and can be drilled simultaneously using a multi-spindle drill head. For slow-moving farm tractors with large. Drive ring gears h, the differential shaft spur gears a, b can be made so large and the tooth pressures can thereby be reduced so that two double spur gears cd and intermediate gears e offset by 180 ° are sufficient. According to Fig. I, the epicyclic gears c, d and e are made from one piece with their journals located in the housing halves. Instead of the pin, fixed bolts can also be installed in the housing halves, on which the drilled-out planetary gears rotate loosely.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP27481D DE811650C (en) | 1948-12-28 | 1948-12-28 | Spur gear differential gear for motor vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP27481D DE811650C (en) | 1948-12-28 | 1948-12-28 | Spur gear differential gear for motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE811650C true DE811650C (en) | 1951-08-23 |
Family
ID=7370847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP27481D Expired DE811650C (en) | 1948-12-28 | 1948-12-28 | Spur gear differential gear for motor vehicles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE811650C (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136585B (en) * | 1955-12-13 | 1962-09-13 | Nsu Motorenwerke Ag | Spur gear differential for motor vehicles |
US3403742A (en) * | 1965-10-29 | 1968-10-01 | Fwd Corp | Drive system for a vehicle having multiple driven rear axles |
EP0096904A2 (en) * | 1982-06-11 | 1983-12-28 | S.I.R.P. STUDI INDUSTRIALI REALIZZAZIONE PROTOTIPI S.p.A. | Differential assembly for distribution of torque between the front and rear axles of an automotive vehicle |
US4691593A (en) * | 1985-03-02 | 1987-09-08 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Limited slip differential system for a motor vehicle with all-wheel drive |
FR2680401A1 (en) * | 1991-08-14 | 1993-02-19 | Viscodrive | DIFFERENTIAL MECHANISM FOR MOTOR VEHICLE. |
US5194058A (en) * | 1991-06-12 | 1993-03-16 | Viscodrive Gmbh | Differential drive |
US5346443A (en) * | 1993-02-23 | 1994-09-13 | Zexel-Gleason Usa, Inc. | Parallel-axis gear differential with limited edge contact between gear members |
US5518464A (en) * | 1992-12-18 | 1996-05-21 | Tochigi Fugi Sangyo Kabushiki Kaisha | Torque divider |
DE102007003675A1 (en) * | 2007-01-25 | 2008-07-31 | Schaeffler Kg | Spur gear differential for motor vehicle, has planetary gearing, planet carrier formed as sum wheel and two difference shafts that are coaxially arranged for sum wheel, which forms output for spur gear differential |
EP2093462A2 (en) | 2008-02-25 | 2009-08-26 | Jtekt Corporation | Gear and differential apparatus provided therewith for vehicle |
WO2013156282A1 (en) * | 2012-04-19 | 2013-10-24 | Schaeffler Technologies AG & Co. KG | Planetary gearbox comprising a planet carrier and bearing ring that have a collar oriented towards a sun gear |
WO2014064303A1 (en) * | 2012-10-26 | 2014-05-01 | Eduardo García Sánchez | Compact differential |
WO2014121777A1 (en) * | 2013-02-08 | 2014-08-14 | Schaeffler Technologies AG & Co. KG | Bearing arrangement for a differential |
WO2014183753A1 (en) * | 2013-05-13 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Transfer case having a joint part and vehicle comprising said transfer case |
WO2016135703A1 (en) * | 2015-02-27 | 2016-09-01 | E-Aam Driveline Systems Ab | Drive module with compact differential mechanism |
EP3181950A1 (en) * | 2015-12-16 | 2017-06-21 | Atieva, Inc. | Parallel axis epicyclic gear differential |
DE102016216269A1 (en) | 2016-08-30 | 2018-03-01 | Schaeffler Technologies AG & Co. KG | differential gear |
US9958049B1 (en) | 2017-05-15 | 2018-05-01 | E-Aam Driveline Systems Ab | Electric drive module with Ravigneaux gearset |
US10316946B2 (en) | 2017-10-13 | 2019-06-11 | E-Aam Driveline Systems Ab | Two mode electric drive module with Ravigneaux gearset |
WO2020187956A1 (en) * | 2019-03-19 | 2020-09-24 | Zf Friedrichshafen Ag | Spur gear differential transmission for a vehicle |
-
1948
- 1948-12-28 DE DEP27481D patent/DE811650C/en not_active Expired
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136585B (en) * | 1955-12-13 | 1962-09-13 | Nsu Motorenwerke Ag | Spur gear differential for motor vehicles |
US3403742A (en) * | 1965-10-29 | 1968-10-01 | Fwd Corp | Drive system for a vehicle having multiple driven rear axles |
EP0096904A2 (en) * | 1982-06-11 | 1983-12-28 | S.I.R.P. STUDI INDUSTRIALI REALIZZAZIONE PROTOTIPI S.p.A. | Differential assembly for distribution of torque between the front and rear axles of an automotive vehicle |
US4523495A (en) * | 1982-06-11 | 1985-06-18 | S.I.R.P. Studi Industriali Realizzazione Prototipi S.P.A. | Differential assembly for distribution of torque between the front and rear axles of an automotive vehicle |
EP0096904B1 (en) * | 1982-06-11 | 1987-09-16 | S.I.R.P. STUDI INDUSTRIALI REALIZZAZIONE PROTOTIPI S.p.A. | Differential assembly for distribution of torque between the front and rear axles of an automotive vehicle |
US4691593A (en) * | 1985-03-02 | 1987-09-08 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Limited slip differential system for a motor vehicle with all-wheel drive |
US5194058A (en) * | 1991-06-12 | 1993-03-16 | Viscodrive Gmbh | Differential drive |
FR2680401A1 (en) * | 1991-08-14 | 1993-02-19 | Viscodrive | DIFFERENTIAL MECHANISM FOR MOTOR VEHICLE. |
US5295922A (en) * | 1991-08-14 | 1994-03-22 | Viscodrive Gmbh | Differential drive |
US5518464A (en) * | 1992-12-18 | 1996-05-21 | Tochigi Fugi Sangyo Kabushiki Kaisha | Torque divider |
US5346443A (en) * | 1993-02-23 | 1994-09-13 | Zexel-Gleason Usa, Inc. | Parallel-axis gear differential with limited edge contact between gear members |
DE102007003675A1 (en) * | 2007-01-25 | 2008-07-31 | Schaeffler Kg | Spur gear differential for motor vehicle, has planetary gearing, planet carrier formed as sum wheel and two difference shafts that are coaxially arranged for sum wheel, which forms output for spur gear differential |
US8057352B2 (en) | 2008-02-25 | 2011-11-15 | Jtekt Corporation | Gear and differential apparatus provided therewith for vehicle |
EP2093462A2 (en) | 2008-02-25 | 2009-08-26 | Jtekt Corporation | Gear and differential apparatus provided therewith for vehicle |
EP2093462A3 (en) * | 2008-02-25 | 2011-09-07 | Jtekt Corporation | Gear and differential apparatus provided therewith for vehicle |
WO2013156282A1 (en) * | 2012-04-19 | 2013-10-24 | Schaeffler Technologies AG & Co. KG | Planetary gearbox comprising a planet carrier and bearing ring that have a collar oriented towards a sun gear |
WO2014064303A1 (en) * | 2012-10-26 | 2014-05-01 | Eduardo García Sánchez | Compact differential |
WO2014121777A1 (en) * | 2013-02-08 | 2014-08-14 | Schaeffler Technologies AG & Co. KG | Bearing arrangement for a differential |
DE102013208731B4 (en) | 2013-05-13 | 2018-04-05 | Schaeffler Technologies AG & Co. KG | Transfer case with joint part and vehicle with the transfer case |
WO2014183753A1 (en) * | 2013-05-13 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Transfer case having a joint part and vehicle comprising said transfer case |
WO2016135703A1 (en) * | 2015-02-27 | 2016-09-01 | E-Aam Driveline Systems Ab | Drive module with compact differential mechanism |
CN107429813A (en) * | 2015-02-27 | 2017-12-01 | E-Aam 传动系统公司 | Drive module with compact differential attachment |
US9500267B2 (en) | 2015-02-27 | 2016-11-22 | E-Aam Driveline Systems Ab | Drive module with compact differential mechanism |
EP3181950A1 (en) * | 2015-12-16 | 2017-06-21 | Atieva, Inc. | Parallel axis epicyclic gear differential |
DE102016216269A1 (en) | 2016-08-30 | 2018-03-01 | Schaeffler Technologies AG & Co. KG | differential gear |
US9958049B1 (en) | 2017-05-15 | 2018-05-01 | E-Aam Driveline Systems Ab | Electric drive module with Ravigneaux gearset |
US10316946B2 (en) | 2017-10-13 | 2019-06-11 | E-Aam Driveline Systems Ab | Two mode electric drive module with Ravigneaux gearset |
WO2020187956A1 (en) * | 2019-03-19 | 2020-09-24 | Zf Friedrichshafen Ag | Spur gear differential transmission for a vehicle |
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