DE871988C - Friction gear with constantly changing transmission ratio - Google Patents

Friction gear with constantly changing transmission ratio

Info

Publication number
DE871988C
DE871988C DEB16216A DEB0016216A DE871988C DE 871988 C DE871988 C DE 871988C DE B16216 A DEB16216 A DE B16216A DE B0016216 A DEB0016216 A DE B0016216A DE 871988 C DE871988 C DE 871988C
Authority
DE
Germany
Prior art keywords
friction
transmission ratio
pair
wheels
friction 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
Application number
DEB16216A
Other languages
German (de)
Inventor
Otto Balk
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB16216A priority Critical patent/DE871988C/en
Application granted granted Critical
Publication of DE871988C publication Critical patent/DE871988C/en
Expired 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Description

.Die. Erfindung-betrifft- ein Reibungsbetriebe mit stetig veränderlichem Übersetzungsverhältnis, bei dem der Kraftschluß durch ein Paar von schwenkbaren Rädern erfolgt..The. The invention relates to a friction operation with a continuously variable Transmission ratio in which the frictional connection through a pair of pivotable Wheels takes place.

Die bisher bekannten' Reibungsgetriebe- für stufenlose Übersetzung haben den, Nachteil, daß -entweder beim Verschieben der Reibkörper gegeneinander gleitende Reibung auftritt, was einen erheblichen Kraftaufwand für das Verschieben erfordert, oder daß zur Vermeidung dieses Umstandes während des Verschiebens der Reibkörper der Kraftschluß unterbrochen werden müß. In letzterem Fall ist eine stetige Veränderung des Übersetzungsverhältnisses nicht möglich, da der Kraftschluß erst nach Einstellen der gewünschten Übersetzung wieder hergestellt werden kann.The previously known 'friction gear' for continuously variable translation have the disadvantage that - either when moving the friction bodies against each other sliding friction occurs, which requires a considerable amount of force to move requires, or that to avoid this circumstance while moving the Friction body the frictional connection must be interrupted. In the latter case it is a continuous It is not possible to change the transmission ratio because the frictional connection is only possible can be restored after setting the desired translation.

Nach der Erfindung geht der Kraftfluß von dem treibenden Reibkörper überein, Paar von Rädern, das um die Verbindungslinie ihrer Mittelpunkte schwenkbar ist; so daß es infolge der Schrägstellung selbst auswandert, zum getriebenen Reibkörper.According to the invention, the power flow comes from the driving friction body match pair of wheels that pivot about the line connecting their centers is; so that it migrates itself due to the inclination to the driven friction body.

Durch diese gleitreibungsfreie Verschiebung bzw. Auswanderung wird das Übersetzungsverhältnis geändert. Der zur Übertragung des Drehmomentes erforderliche Anpreßdeuck wird entweder in- bekannter Weise durch Federn erreicht oder durch Schrägstellung des Räderpaares durch das Drehmoment selbst erzeugt.This sliding friction-free shift or migration is the gear ratio changed. The one required to transmit the torque Anpreßdeuck is achieved either in a known manner by springs or by inclination of the pair of wheels generated by the torque itself.

Die Abb. i und 2 zeigen eine Ausführung des schwenkbaren Räderpaares. Die Achsen des Räderpaares f, g sind in der Hülse h gelagert, die ihrerseits in einer Bohrung des Gleitkörpers i mittels des Hebels k drehbar ist. Der Gleitkörper i kann sich auf der Führung L verschieben.Figs. I and 2 show an embodiment of the swiveling pair of wheels. The axles of the pair of wheels f, g are mounted in the sleeve h, which in turn is in a bore of the sliding body i is rotatable by means of the lever k. The sliding body i can move on the guide L.

Abb.3 zeigt schematisch ein Getriebe reit schwenkbarem Räderpaar. Die antreibende Reibscheibe e versetzt das ihr anliegende Rad f in Drehung,' welches sie über das Rad g an die angetriebene, unmittig- zur Reibscheibe i stehende Reibscheibe d weiterleitet. Beim Schwenken dies Räderpaares mittels: des Hebels k aus der -Drehrichtung der Reibscheiben. c, d heraus (Stellung i) läuft jedes Rad auf der ihm anliegenden Reibscheibe auf einer Spiralbahn. Dadurch verschiebt sich das Räderpaar f, g auf der Führung L und ändert das Übersetzungsverhältnis so lange, bis die Schwenkung "aufhört: 'In der gewählten Ausführung erfolgt die Schwenkung durch eine dem gewünschten Übersetzungsverhältnis entsprechend gespannte Feder, die am Hebel k angreift. Durch Auswandern des Räderpaares ca, b infolge der Schrägstellung und, damit des Hebels k hört die Federspannung beim Erreichen des gewünschten Übersetzungsverhältnisses und damit die weitere Auswanderung des Räderpaares auf (Stellung 2).Fig.3 shows a schematic of a gear unit with a pair of swiveling wheels. The driving friction disk e sets the wheel f resting against it in rotation, which it forwards via the wheel g to the driven friction disk d, which is in the center of the friction disk i. When pivoting this pair of wheels by means of: the lever k from the direction of rotation of the friction disks. c, d out (position i), each wheel runs on the friction disc resting against it on a spiral path. As a result, the pair of wheels f, g shifts on the guide L and changes the transmission ratio until the pivoting "stops:" In the selected version, the pivoting is carried out by a spring that is tensioned according to the desired transmission ratio and engages the lever k of the pair of wheels ca, b as a result of the inclination and, thus, of the lever k, the spring tension ceases when the desired transmission ratio is reached, and thus the further migration of the pair of wheels (position 2).

Abb. 4 zeigt die selbsttätige Erzeugung des Anpreßdruckes durch das Drehmoment selbst mittels Schrägstellung des Räderpaares. f, g. Scheibe i ist die antreibende.Fig. 4 shows the automatic generation of the contact pressure by the torque itself by means of the inclined position of the pair of wheels. f, g. Disk i is the driving force.

Claims (3)

PATENTANSPRÜCHE: i. Reibungsgetriebe mit stetig veränderlichem Übersetzungsverhältnis, dadurch gekennzeichnet,. däß die Kopplung des antreibenden Reibkörpers mit dem angetriebenem erfolgt durch ein Paar sich aufeinander abwälzender Räder, die durch eine Schwenkung ihrer gemeinsamen, in jeder Stellung senkrecht auf der Reibfläche stehenden Ebene sich selbst verstellen und dadurch das Übersetzungsverhältnis ändern. PATENT CLAIMS: i. Friction gear with continuously variable transmission ratio, characterized,. däß the coupling of the driving friction body with the driven one is done by a pair of rolling wheels that pivot their common plane, which is perpendicular to the friction surface in every position adjust themselves and thereby change the transmission ratio. 2. Reibungsgetriebe nach Anspruch i, dadurch gekennzeichnet, daß der für die Kopplung notwendige Anpreßdruck durch Schrägstellen des Räderpaares in seiner- gemeinsamen Ebene gegen die Senkrechte auf die beiden Reibkörper vom übertragenen, Drehmoment erzeugt wird. . 2. Friction gear according to claim i, characterized in that the contact pressure necessary for the coupling by inclining the pair of wheels in its common plane against the vertical is generated on the two friction bodies by the transmitted torque. . 3. Reibungsgetriebe nach Anspruch i und 2, dadurch gekennzeichnet, daß. der treibende und angetriebene Reibkörper aus zwei parallel und unmittig zueinander stehenden Scheiben oder einer Scheibe und. parallelem Walze bestehen, so daß durch Verschieben des Kopplungsgliedes über den Mittelpunkt. eines Scheibe hinweg Änderung der Drehrichtung des. angetriebenen Reibkörpers eintritt. Angezogene Druckschriften: Deutsche Patentschrift Nr. 352 945.3. Friction gear according to claim i and 2, characterized in that. the driving and driven Friction body made up of two disks that are parallel and off-center to one another, or one Disc and. parallel roller exist, so that by moving the coupling member about the center point. of a disc change the direction of rotation of the driven Friction body occurs. Referenced publications: German patent specification No. 352 945.
DEB16216A 1951-08-08 1951-08-08 Friction gear with constantly changing transmission ratio Expired DE871988C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB16216A DE871988C (en) 1951-08-08 1951-08-08 Friction gear with constantly changing transmission ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB16216A DE871988C (en) 1951-08-08 1951-08-08 Friction gear with constantly changing transmission ratio

Publications (1)

Publication Number Publication Date
DE871988C true DE871988C (en) 1953-03-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEB16216A Expired DE871988C (en) 1951-08-08 1951-08-08 Friction gear with constantly changing transmission ratio

Country Status (1)

Country Link
DE (1) DE871988C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128245B (en) * 1956-06-25 1962-04-19 Joachim Uhing Fa Friction gear for converting a rotary movement into a feed movement
DE1140420B (en) * 1959-10-16 1962-11-29 Zeiss Carl Fa Friction gear for converting a rotary movement into a feed movement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352945C (en) * 1922-05-08 Ford Instr Company Inc Friction gear change transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352945C (en) * 1922-05-08 Ford Instr Company Inc Friction gear change transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128245B (en) * 1956-06-25 1962-04-19 Joachim Uhing Fa Friction gear for converting a rotary movement into a feed movement
DE1140420B (en) * 1959-10-16 1962-11-29 Zeiss Carl Fa Friction gear for converting a rotary movement into a feed movement

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