DE202012001685U1 - Infinitely adjustable belt transmission - Google Patents
Infinitely adjustable belt transmission Download PDFInfo
- Publication number
- DE202012001685U1 DE202012001685U1 DE201220001685 DE202012001685U DE202012001685U1 DE 202012001685 U1 DE202012001685 U1 DE 202012001685U1 DE 201220001685 DE201220001685 DE 201220001685 DE 202012001685 U DE202012001685 U DE 202012001685U DE 202012001685 U1 DE202012001685 U1 DE 202012001685U1
- Authority
- DE
- Germany
- Prior art keywords
- control
- transmission according
- wheels
- cvt transmission
- main
- 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 - Lifetime
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Classifications
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- 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
- F16H61/66—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 specially adapted for continuously variable gearings
- F16H61/662—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 specially adapted for continuously variable gearings with endless flexible members
- F16H61/66272—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 specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the gearing
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- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/54—Pulleys or friction discs of adjustable construction of which the bearing parts are radially adjustable
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- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
- F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
- F16H63/067—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
Stufenlos verstellbares Riemengetriebe, das 2 Haupträder (1.1, 1.2), mind. 2 Steuerräder (2.1, 2.2), eine Vorrichtung zur Ansteuerung (3.1, 3.2), einen Riemen (4), mehrere Stifte (5), 2 Achsenbuchsen (6.1, 6.2) und Normteile aus Unteranspruch 1 umfasst.Infinitely variable belt drive, the 2 main wheels (1.1, 1.2), at least 2 control wheels (2.1, 2.2), a device for driving (3.1, 3.2), a belt (4), several pins (5), 2 axle bushes (6.1, 6.2) and standard parts from dependent claim 1.
Description
Die Erfindung betrifft ein Stufenlos verstellbares Riemengetriebe, das die Vorteile eines CVT-Getriebes mit denen eines konventionellen Riemengetriebes kombiniert.The invention relates to a continuously variable belt transmission, which combines the advantages of a CVT transmission with those of a conventional belt drive.
Bei CVT-Getriebe üblicher Bauart erfolgt die Kraftübertragung durch Reibung. Diese Reibkraft ist gleich der zu übertragenden Kraft. Sie errechnet sich aus den Reibwerten der Übertragungskomponenten (z. B. Reibräder, Reibriemen etc.) und dem benötigten Anpressdruck sowie der gerade gewählten Übersetzung. Da sich Drehmoment und Übersetzung ständig variieren, ist die Steuerung des optimalen Anpressdrucks technisch sehr aufwendig und der Anpressdruck bzw. die Anpresskraft selbst wird sehr hoch (s. Diagramm 1)In CVT transmission of conventional design, the power transmission takes place by friction. This friction force is equal to the force to be transmitted. It is calculated from the coefficients of friction of the transmission components (eg friction wheels, friction belt etc.) and the required contact pressure as well as the currently selected gear ratio. Since torque and gear ratio are constantly changing, the control of the optimum contact pressure is technically very complex and the contact pressure or the contact pressure itself is very high (see diagram 1).
Normale Getriebe haben diese Probleme nicht, können jedoch auch nicht stufenlos geschaltet werden und bieten so nicht immer die optimale Übersetzung. Bei Kraftfahrzeugen wiegen diese Probleme nicht so stark da Leistung im Überschuss vorhanden ist, doch speziell im Automobilbereich entwickelt sich die Getriebetechnologie stark weiter.Normal transmissions do not have these problems, but they can not be switched continuously and thus do not always provide the optimum ratio. In motor vehicles, these problems do not weigh so much as there is excess power, but especially in the automotive sector, transmission technology is evolving significantly.
Im Fahrradbereich hat es im Bereich der Antriebstechnik erst in den letzten Jahren Bewegung gegeben. Zu nennen sind die Rohloff Speed-Hub, eine Getriebe Nabe mit mehreren Planetengetrieben, das NuVinci CVP Getriebe, eine Getriebenabe auf Basis eine Reibrad-Getriebes, basierend auf Ideen Leonardo da Vincis, und das Pinion P.18 ein Ziehkeilgetriebe mit 18 Gängen, welches das Tretlager integriert.In the bicycle sector, there has only been movement in the field of drive technology in recent years. These include the Rohloff Speed-Hub, a gear hub with multiple planetary gearboxes, the NuVinci CVP transmission, a gear hub based on a friction gear, based on Leonardo da Vinci's ideas, and the Pinion P.18, a 18-speed clincher the bottom bracket integrated.
Der im Schutzanspruch 1 angegebenen Erfindung liegt das Problem zu Grunde die Vorteile eines Riemen-CVT-Getrieben mit denen eines Flach-/Keilriemen-/Zahnriemen-Getriebes zu vereinen und dabei bestimmte Konstruktionsziele zu erreichen, wie geringes Gewicht, hoher Wirkungsgrad, einfacher Betrieb und eine große Übersetzungsbandbreite.The protection specified in
In Modell 1 ist das gesamte Getriebe (ohne Lager, Federn, Halterung, Passscheiben etc.) zu sehen. Die Stifte (
Ihre Anordnung in den Steuer-/Hauptrad-Kombination (
Das Steuerrad (
Die Übersetzungsänderung lässt sich über die Position der Stifte erklären. Die Stifte sind kreisförmig in den Bohrungen um die Wellenachse der Haupt-/Steuerrad-Gruppe angeordnet. Die Stifte sind in gleicher Anzahl in den beiden Haupt-/Steuerrad-Gruppen positioniert. Der Abstand eines Stiftes zur Wellenachse ist gleichzeitig der Radius des Kreises, den die in einer Haupt-/Steuerrad-Gruppe positionierten Stifte bilden. Vergrößert oder verkleinert sich der Radius der Stifte ändert sich somit auch der Umschlingungsradius des Riemens. Dies geschieht wie schon beschrieben an den beiden Haupt-/Steuerrad-Gruppen gegenläufig.
Gruppe 1 ist der Antrieb und Gruppe 2 der Abtrieb
Radius Gruppe 1 maximal = Radius Gruppe 2 minimal > Übersetzung maximal
Radius Gruppe 1 mittel = Radius Gruppe 2 mittel > Übersetzung 1:1
Radius Gruppe 1 minimal = Radius Gruppe 2 maximal > Übersetzung minimalThe translation change can be explained by the position of the pens. The pins are arranged in a circle in the holes around the shaft axis of the main / steering wheel group. The pins are positioned in equal numbers in the two main / steering wheel groups. The distance of a pin to the shaft axis is also the radius of the circle formed by the pins positioned in a main / steering wheel group. As the radius of the pins increases or decreases, so does the belt's radius of wrap. This happens as already described at the two main / steering wheel groups in opposite directions.
Zwischen diesen standardisierten Übersetzungsmöglichkeiten gibt es theoretisch unendlich viele Übersetzungen, die jedoch in der Praxis durch die Genauigkeit der Steuerung limitiert sind.There are theoretically an infinite number of translations between these standardized translation options, but these are limited in practice by the accuracy of the control.
Für den Betrieb selbst braucht man noch die Achsenbuchsen (
Verschiedene Modellansichten und Zeichnungen sollen die Funktion erläutern.
Modell 1: Gesamt Ansicht des Getriebes mit Riemen
Modell 2: Gesamt Ansicht des Getriebes ohne Riemen
Modell 3: Stufenlose Ansteuerung
Modell 4: Stift
Modell 5: Stift eingepasst in Steuer-/Hauptrad
Modell 6: Hauptrad
Modell 7: Steuerrad Different model views and drawings explain the function.
Model 1: Overall view of the transmission with belt
Model 2: Overall view of the gearbox without belt
Model 3: Stepless control
Model 4: pen
Model 5: pin fitted in control / main wheel
Model 6: main wheel
Model 7: steering wheel
Grafikengraphics
Diagramm 1:Diagram 1:
Anpresskraft in N für ein Drehmoment von 400 Nm in einem Übersetzungsbereich von 0.3333333 bis 3,0. Der Reibwert liegt konstant bei 0,12 (ohne Einheit).Pressing force in N for a torque of 400 Nm in a transmission range from 0.3333333 to 3.0. The coefficient of friction is constant at 0.12 (without unit).
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201220001685 DE202012001685U1 (en) | 2012-02-21 | 2012-02-21 | Infinitely adjustable belt transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201220001685 DE202012001685U1 (en) | 2012-02-21 | 2012-02-21 | Infinitely adjustable belt transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202012001685U1 true DE202012001685U1 (en) | 2013-05-22 |
Family
ID=48652794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201220001685 Expired - Lifetime DE202012001685U1 (en) | 2012-02-21 | 2012-02-21 | Infinitely adjustable belt transmission |
Country Status (1)
Country | Link |
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DE (1) | DE202012001685U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106402303A (en) * | 2015-07-30 | 2017-02-15 | 郑云兵 | Transmission |
ITUA20164443A1 (en) * | 2016-06-16 | 2017-12-16 | Luca Pappaglione | BICYCLE CHANGE |
-
2012
- 2012-02-21 DE DE201220001685 patent/DE202012001685U1/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106402303A (en) * | 2015-07-30 | 2017-02-15 | 郑云兵 | Transmission |
CN106402303B (en) * | 2015-07-30 | 2019-07-09 | 郑云兵 | A kind of speed changer |
ITUA20164443A1 (en) * | 2016-06-16 | 2017-12-16 | Luca Pappaglione | BICYCLE CHANGE |
EP3257737A1 (en) * | 2016-06-16 | 2017-12-20 | Luca Pappaglione | Speed variator system for a bicycle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 20130711 |
|
R156 | Lapse of ip right after 3 years |