DE202006009477U1 - Friction wheel gear for commercial bicycle, has one bearing, and shaft including rolling wheel at its both ends and axially displaceable on drive and output pulleys, where pulleys are made from aluminum and wheel is made from rubber - Google Patents
Friction wheel gear for commercial bicycle, has one bearing, and shaft including rolling wheel at its both ends and axially displaceable on drive and output pulleys, where pulleys are made from aluminum and wheel is made from rubber Download PDFInfo
- Publication number
- DE202006009477U1 DE202006009477U1 DE200620009477 DE202006009477U DE202006009477U1 DE 202006009477 U1 DE202006009477 U1 DE 202006009477U1 DE 200620009477 DE200620009477 DE 200620009477 DE 202006009477 U DE202006009477 U DE 202006009477U DE 202006009477 U1 DE202006009477 U1 DE 202006009477U1
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- friction gear
- infinitely variable
- drive pulley
- variable friction
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/12—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with frictionally-engaging wheels
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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
- 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
- F16H15/10—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 two members cross or intersect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
Description
1. Kurzbeschreibung1. Short description
Stufenlos verstellbares Reibradgetriebeinfinitely variable adjustable friction gear
Die Erfindung betrifft ein stufenlos verstellbares Reibradgetriebe, beispielsweise in der Anwendung konzipiert für Fahrräder.The The invention relates to a continuously variable friction gear, for example, in the application designed for bicycles.
Die vorliegende Erfindung ist dadurch gekennzeichnet, dass sich eine gelagerte Welle, an deren Enden sich je ein Abrollrad befindet, axial verschieben lässt.The present invention is characterized in that a mounted shaft, at the ends of which is a Abrollrad, can be moved axially.
Durch die beiden Abrollräder an den Enden der Welle werden das Antriebsscheibenrad und das Abtriebsscheibenrad, deren Drehachsen im 90° Winkel zur Drehachse der Welle stehen, angetrieben. Die beiden Abrollräder können, um eine andere Übersetzungsspreizung zu erhalten, oder die axiale Position von Antriebscheibenrad und Abtriebsscheibenrad zu ändern, einen unterschiedlich großen Durchmesser haben.By the two Abrollräder at the ends of the shaft, the drive pulley and the driven pulley, their axes of rotation at 90 ° angle to the axis of rotation of the shaft, driven. The two Abrollräder can, um another translation spread or the axial position of drive pulley and To change the output pulley, a different size Have diameter.
Durch die axiale Verschiebung der Welle in positiver x-Richtung wird der Abrollumfang am Antriebsscheibenrad vergrößert und gleichzeitig am Abtriebsscheibenrad verkleinert. Wird die Welle entgegen der x-Richtung verschoben, so verkleinert sich der Abrollumfang am Antriebsscheibenrad und vergrößert sich der Abrollumfang am Abtriebsscheibenrad. By the axial displacement of the shaft in the positive x-direction is the Rolling circumference at the drive pulley enlarged and at the same time on the driven pulley reduced. If the shaft is moved against the x-direction, so reduces the rolling circumference of the drive pulley and increases the rolling circumference on the driven pulley.
2. Beschreibung2. Description
Stufenlos verstellbares Reibradgetriebeinfinitely variable adjustable friction gear
Die Erfindung betrifft ein stufenlos verstellbares Reibradgetriebe, beispielsweise in der Anwendung konzipiert für Fahrräder.The The invention relates to a continuously variable friction gear, for example, in the application designed for bicycles.
Die vorliegende Erfindung ist dadurch gekennzeichnet, dass sich eine gelagerte Welle, an deren Enden sich je ein Abrollrad befindet, axial verschieben lässt.The present invention is characterized in that a mounted shaft, at the ends of which is a Abrollrad, can be moved axially.
Durch die beiden Abrollräder an den Enden der Welle werden das Antriebsscheibenrad und das Abtriebsscheibenrad, deren Drehachsen im 90° Winkel zur Drehachse der Welle stehen, angetrieben. Die beiden Abrollräder können, um eine andere Übersetzungsspreizung zu erhalten, oder die axiale Position von Antriebscheibenrad und Abtriebsscheibenrad zu ändern, einen unterschiedlich großen Durchmesser haben.By the two Abrollräder at the ends of the shaft, the drive pulley and the driven pulley, their axes of rotation at 90 ° angle to the axis of rotation of the shaft, driven. The two Abrollräder can, um another translation spread or the axial position of drive pulley and To change the output pulley, a different size Have diameter.
Durch die axiale Verschiebung der Welle in positiver x-Richtung wird der Abrollumfang am Antriebsscheibenrad vergrößert und gleichzeitig am Abtriebsscheibenrad verkleinert. Wird die Welle entgegen der x-Richtung verschoben, so verkleinert sich der Abrollumfang am Antriebsscheibenrad und vergrößert sich der Abrollumfang am Abtriebsscheibenrad.By the axial displacement of the shaft in the positive x-direction is the Rolling circumference at the drive pulley enlarged and at the same time on the driven pulley reduced. If the shaft is moved against the x-direction, so reduces the rolling circumference of the drive pulley and increases the rolling circumference on the driven pulley.
Bei bereits vorhandenen Reibradgetrieben mit zwei Rotationskörpern (siehe Dubbel „Taschenbuch für den Maschinenbau") werden ein angetriebenes Rad und ein Abtriebsrad, welches gleichzeitig zur Übersetzungsänderung beiträgt, verwendet. Die Drehachsen der Antriebsscheibe und der Abtriebs- sowie Verstellscheibe stehen hierbei in einem Winkel zueinander.at existing friction gears with two rotating bodies (see Dubbel "Paperback for the Mechanical Engineering ") a driven wheel and a driven wheel, which simultaneously to the translation change contributes used. The axes of rotation of the drive pulley and the output and Adjustment disc are at an angle to each other.
Die vorliegende Erfindung bezieht sich unter anderem darauf, dass die Drehachsen von der Antriebsscheibe und der Antriebsscheibe parallel zueinander liegen. Die Abrollräder auf der Welle, welche nach dem Reibradprinzip mit der Antriebsscheibe und der Antriebsscheibe verbunden sind, sorgen für eine geschlossene Kraftübertragung. Die Drehachse der Welle mit den beiden Abrollrädern steht im 90° Winkel zu den Drehachsen von der Antriebsscheibe und der Antriebsscheibe.The The present invention relates, inter alia, to the fact that the Rotary axes of the drive pulley and the drive pulley parallel lie to each other. The rolling wheels on the shaft, which after the friction wheel with the drive pulley and the drive pulley are connected, ensure a closed power transmission. The axis of rotation of the shaft with the two Abrollrädern is at 90 ° angle the axes of rotation of the drive pulley and the drive pulley.
Um die Übersetzungsspreizung anzupassen, können das Antriebsscheibenrad und das Abtriebsscheibenrad einen unterschiedlichen Durchmesser haben. Des Weiteren, können auch die Durchmesser der beiden Abrollräder unterschiedlich groß sein. Die Welle sollte aus Platz- und Gewichtsgründen einen relativ kleinen Durchmesser haben. Um eine Gleitreibung (ein Rutschen der Abrollräder auf der Abtriebsscheibe oder der Antriebsscheibe) zu verhindern, sollte ein hoher Haftreibungskoeffizient erreicht werden. Um dies zu gewährleisten, können die Werkstoffe der Abrollräder und der Antriebsscheibe sowie der Abtriebsscheibe oder auch nur deren Berührungsflächen aus unterschiedlichen Materialien bestehen.Around the translation spread can adapt the drive pulley and the driven pulley a different Have diameter. Furthermore, the diameter of the two Abrollräder be different in size. The wave should be out of place and weight reasons have a relatively small diameter. To a sliding friction (a Slipping the Abrollräder on the driven pulley or the drive pulley) should be avoided a high static friction coefficient can be achieved. To ensure this, can they Materials of the Abrollräder and the drive pulley and the driven pulley or only their contact surfaces consist of different materials.
Bsp.: Antriebsscheibe und Abtriebsscheibe aus Aluminium und die Abrollräder der Welle aus Kautschuk.Ex .: Drive pulley and driven pulley made of aluminum and the rolling wheels of the Wave of rubber.
Bei der Anwendung von stufenlosen Getrieben an Fahrrädern wird besonders Wert darauf gelegt einen Winkel zwischen Antriebsachse und Antriebsachse zu vermeiden. Gleichzeitig sollte das Getriebe eine große Übersetzungsspreizung bei kompakter, einfacher und leichter Bauweise besitzen. Dies wird von der vorliegender Erfindung beides gewährleistet und sie bietet darüber hinaus noch den Vorteil einer stufenlosen Verstellung.at The use of continuously variable transmissions on bicycles is particularly important set an angle between the drive axle and the drive axle avoid. At the same time, the transmission should have a large transmission spread in a compact, simple and lightweight design. this will Ensures both of the present invention and it offers beyond still the advantage of a stepless adjustment.
Wird die Erfindung an einem Fahrrad umgesetzt, kann das Abtriebsscheibenrad auf eine handelsübliche Freilaufnabe am Hinterrad montiert werden. Hierdurch wird ein Mitdrehen der kompletten Getriebeeinheit bei Bergabfahrten verhindert und dadurch Reibungsverluste auf ein Minimum reduziert.If the invention is implemented on a bicycle, the driven pulley can be mounted on a commercially available freewheel hub on the rear wheel. This will turn the entire Gear unit prevented when driving downhill and thereby reduces friction losses to a minimum.
Im Gegensatz zu herkömmlichen Antriebskonzepten mit Zahnrädern, Ketten oder einer Kombination der beiden genannten Konzepte kann bei der vorliegenden Erfindung auf eine Schmierung verzichtet werden, was wiederum die Wartungsfreundlichkeit verbessert.in the Unlike traditional Drive concepts with gears, Chains or a combination of the two concepts mentioned can lubrication is dispensed with in the present invention, which in turn improves the ease of maintenance.
Anwendungsbereiche dieser Erfindung können alle Antriebskonzepte sein, bei denen eine stufenlos verstellbare Antriebsdrehzahl, bei konstanter Antriebsdrehzahl und damit einem konstanten Antriebsmoment, erforderlich ist. Dies ist beispielsweise bei Fahrzeugen oder bei Fertigungsmaschinen jeglicher Art von großer Bedeutung.applications of this invention be all drive concepts in which a continuously adjustable Drive speed, at constant drive speed and thus one constant drive torque is required. This is for example Vehicles or in manufacturing machines of any kind of great importance.
3. Zeichnungsbeschreibung3. Drawing description
In
- 11
- Antriebsscheibesheave
- 22
- Abrollrad AntriebsseiteAbrollrad driving side
- 33
- Verstellmechanismusadjustment
- 44
- axial verstellbare Welleaxial adjustable shaft
- 55
- Abrollrad AbtriebsseiteAbrollrad output side
- 66
- Abtriebsscheibedriven pulley
- 77
- Lagerungstorage
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620009477 DE202006009477U1 (en) | 2006-06-17 | 2006-06-17 | Friction wheel gear for commercial bicycle, has one bearing, and shaft including rolling wheel at its both ends and axially displaceable on drive and output pulleys, where pulleys are made from aluminum and wheel is made from rubber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620009477 DE202006009477U1 (en) | 2006-06-17 | 2006-06-17 | Friction wheel gear for commercial bicycle, has one bearing, and shaft including rolling wheel at its both ends and axially displaceable on drive and output pulleys, where pulleys are made from aluminum and wheel is made from rubber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202006009477U1 true DE202006009477U1 (en) | 2006-10-26 |
Family
ID=37388141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200620009477 Expired - Lifetime DE202006009477U1 (en) | 2006-06-17 | 2006-06-17 | Friction wheel gear for commercial bicycle, has one bearing, and shaft including rolling wheel at its both ends and axially displaceable on drive and output pulleys, where pulleys are made from aluminum and wheel is made from rubber |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202006009477U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107061652A (en) * | 2017-04-21 | 2017-08-18 | 大连理工大学 | Stepless speed change device |
-
2006
- 2006-06-17 DE DE200620009477 patent/DE202006009477U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107061652A (en) * | 2017-04-21 | 2017-08-18 | 大连理工大学 | Stepless speed change device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 20061130 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20100101 |