DE854865C - Infinitely variable planetary friction gear - Google Patents
Infinitely variable planetary friction gearInfo
- Publication number
- DE854865C DE854865C DER224A DER0000224A DE854865C DE 854865 C DE854865 C DE 854865C DE R224 A DER224 A DE R224A DE R0000224 A DER0000224 A DE R0000224A DE 854865 C DE854865 C DE 854865C
- Authority
- DE
- Germany
- Prior art keywords
- gears
- planetary
- friction
- infinitely variable
- gear
- 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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
- F16H15/14—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the members are parallel or approximately parallel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Description
Die Erfindung betrifft ein stufenlos regelbares Planetenrädergetriebe mit parallelachsig liegenden, die Reibkörper tragenden Wellen, deren Abstand veränderbar ist. -- - -Bei bekannten Wechselgetrieben dieser Art wird das durch Kraftschluß mittels der Sonnenradscheiben in die Planetenräderscheiben eingeleitete Drehmoment durch Zahnräder abgeleitet. Durch die Erfindung soll ein derartiges Getriebe angegeben werden, bei dem die Weiterleitung des Drehmoments nicht durch Zahnräder geschieht. Das wird erfindungsgemäß dadurch erreicht, daß zur Weiterleitung des Drehmoments von den Planetenrädern auf die A.btriebswelle Ringreibkörper dienen, die zentral zur Antriebswelle angeordnet und mit der getriebenen Welle drehfest verbunden sind. Die Reibscheiben sowohl dieser Ringreibkörper als auch des Sonnenrades können als Scheibenfedern (Tellerfedern) ausgebildet sein, deren eigene Federung die Anpressung an die Planetenräder hervorbringt. Es ist aber auch möglich, den Axialanpreßdruckdurch Vorrichtungen zu erzeugen, welche die vom zu übertragenden Drehinoment herrührenden Umfangskräfte in axiale Kräfte umwandeln.The invention relates to a continuously variable planetary gear transmission with shafts lying parallel to the axis and carrying the friction bodies, the spacing of which can be changed is. - - -With known change gears of this type, this is done by frictional connection torque introduced into the planetary gear disks by means of the sun gear disks derived by gears. Such a transmission is intended to be specified by the invention in which the transmission of the torque does not take place through gears. This is achieved according to the invention in that for the transmission of the torque from the planetary gears to the A.btriebswelle ring friction bodies, which are central are arranged to the drive shaft and rotatably connected to the driven shaft. The friction disks of both this ring friction body and the sun gear can be used as Woodruff springs (disc springs) may be formed, their own suspension the pressure on the planet gears. But it is also possible to increase the axial pressure To generate devices, which are derived from the torque to be transmitted Convert circumferential forces into axial forces.
Ein Getriebe gemäß der Erfindung zeichnet sich durch eine kurze Bauweise, gleichachsige Anordnung der Antriebs- und Abtriebswelle, durch den Wegfall von Zahnrädern, einen großen Regelbereich und einen guten Kräfteausgleich aus; da es einen vollkommen symmetrischen Aufbau aufweist.A transmission according to the invention is characterized by a short design, coaxial arrangement of the drive and output shaft, due to the elimination of gears, a large control range and a good balance of forces; because it is a perfect has a symmetrical structure.
In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes schematisch in einem Axialschnitt dargestellt.The drawing shows an embodiment of the subject matter of the invention shown schematically in an axial section.
Das Planetenreibrädergetriebe weist wie ein normales Stirnradplanetengetriebe eine Sonnenradwelle i, ein Innenrad 6 und Planetenräder 4 auf. Während die Planetenräder 4 aus mit der Hohlwelle fest verbundenen Scheiben bestehen, wird das Sonnen- und das Innenrad aus mit den Drehkörpern der Welle i bzw. dem topfartigen Abtriebskörper 6 drehfest aber axial verschieblichen Seheiben. 2 bzw. 5 gebildet.The planetary friction gear has like a normal spur planetary gear a sun gear shaft i, an internal gear 6 and planet gears 4. While the planetary gears 4 consist of discs firmly connected to the hollow shaft, the sun and the inner gear from with the rotating bodies of the shaft i or the pot-like output body 6 rotatably but axially displaceable Seheiben. 2 and 5 respectively.
Bei dem dargestellten Getriebe sind die Scheiben 2 und 5 als Tellerfedern ausgebildet. Die Abtriebs-----l welle 7 ist 'an der Topfscheibe 6 bel#estigt. 'Zentral zur Antriebswelle i sind mehrere Planetenscheibenräder angeordnet, die sich um die Zapfen i i von Kurbeln 3 drehen, deren Wellen 12 im Gehäuse io gelagert sind. An den im Gehäuse gelagerten Wellen der Kurbeln 3 sind beispielsweise Zahnräder 8 befestigt, die durch einen zentral zur Antriebswelle i angeordneten Stellring 9 gemeinsam verdreht werden können.In the transmission shown, the disks 2 and 5 are plate springs educated. The output shaft 7 is attached to the cup disk 6. 'Central to the drive shaft i several planetary disk gears are arranged, which revolve around the Rotate pin i i of cranks 3, the shafts 12 of which are mounted in housing io. At the shafts of the cranks 3 mounted in the housing, for example, are attached to gears 8, which are rotated together by an adjusting ring 9 arranged centrally to the drive shaft i can be.
Mit der Verdrehung der Kurbeln wird der Radialabstand der Planetenräder von der Antriebswelle i verändert. Mit dieser Abstandsänderung ändern sich auch die Radien der Berührungspunkte zwischen der Sonnenradscheibe 2 und dem Planetenrad einerseits und dem Planetenrad 4 und der Innenscheibe 5 andererseits, womit das Übersetzungsverhältnis zwischen der Antriebswelle i und der Abtriebswelle 7 geändert wird.As the cranks are rotated, the radial distance between the planetary gears increases changed by the drive shaft i. With this change in distance also change the radii of the points of contact between the sun gear disk 2 and the planet gear on the one hand and the planet gear 4 and the inner disk 5 on the other hand, which means that Transmission ratio between the drive shaft i and the output shaft 7 changed will.
Die Scheiben 2 und 5 können an die Planetenradscheiben 4 statt durch Federkraft auch durch eine Vorrichtung angepreßt werden, welche die Umfangskräfte . der Räder i und 7 in eine axiale Anpressung umwandelt. Bei einer derartigen Anordnung ist die Anpressung ,proportional dem durchzuleitenden Drehmoment, wodurch sich eine Schonung der Reibstellen bei Teilbelastung ergibt.The disks 2 and 5 can be held by the planetary gear disks 4 Spring force can also be pressed by a device, which the circumferential forces . the wheels i and 7 converts into an axial contact pressure. With such an arrangement is the contact pressure, proportional to the torque to be passed through, which creates a Protection of the friction points with partial load results.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER224A DE854865C (en) | 1949-10-30 | 1949-10-30 | Infinitely variable planetary friction gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER224A DE854865C (en) | 1949-10-30 | 1949-10-30 | Infinitely variable planetary friction gear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE854865C true DE854865C (en) | 1952-11-06 |
Family
ID=7395018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER224A Expired DE854865C (en) | 1949-10-30 | 1949-10-30 | Infinitely variable planetary friction gear |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE854865C (en) |
-
1949
- 1949-10-30 DE DER224A patent/DE854865C/en not_active Expired
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