GB344064A - Improvements in or relating to variable speed power transmission - Google Patents
Improvements in or relating to variable speed power transmissionInfo
- Publication number
- GB344064A GB344064A GB39104/30A GB3910430A GB344064A GB 344064 A GB344064 A GB 344064A GB 39104/30 A GB39104/30 A GB 39104/30A GB 3910430 A GB3910430 A GB 3910430A GB 344064 A GB344064 A GB 344064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- load
- ring
- sets
- floating
- 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
- 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
- F16H61/664—Friction gearings
-
- 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
- F16H15/32—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 has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
- F16H15/36—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 has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
- F16H15/38—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 has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
- F16H2015/383—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 has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces with two or more sets of toroid gearings arranged in parallel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
344,064. Equalizing .load on friction rollers. HAYES, F. A., Middletown, New Jersey, U.S.A. Sept. 2, 1929, No. 39104/30. Convention date, May 7, 1929. Divided on 343,988. [Classes 80 (i) and 80 (ii).] In torus disc variable-speed gear operating by the precession of intermediate rollers, load is equalized amongst the rollers of each set, and between twin sets of rollers. The rollers of a set are supported by pivoted linkages subjected to the balancing differential movement of a floating or wabbling connecting ring. Thus floating member 150, Fig. 10, schematically supporting rollers at 2, 3, 4, may move about instantaneous centre 5 so that support 2 moves between points 2a, 2b thereby causing the corresponding roller to precess to a new group position in which load is equalized. The invention is described applied to the twin epicyclic arrangement described in Specification 343,988. End discs 10, 11, Fig. 1, are keyed upon engine shaft 12, and the spiders 25, 55 supporting the twin sets of rollers 19, 50, are secured to a connecting sleeve 13a upon which a double abutment disc 15 turns. The first set, shown also in Fig. 2, is modified for connection with a control slider 46 which functions as described in Specification 344,061. The floating balancing ring 35 of this set is centrally arranged with little floating movement about shaft 12. The rollers 19 are supported in rockers 28 pivoted upon the spider 25 at 27, as described in Specification 344,062, and the equalizer ring 35 is connected to each rocker by a radially extending arm 34. The control slider 46 has a differential cam connection 40 with drums 37, 39 leading to the ring 35 and spider 25 respectively, and the elastic deformation of these drums and of arms 36 assists in the balancing action of wabble ring 35. The second roller set, shown also in Fig. 8, is modified for connection through drum 75, Fig. 1, with load shaft 63. The floating equalizer ring 56 is peripherally arranged and on inwardly extending ears 58a carries pins 58, Fig. 9, having slotted connections 58b with the rockers 54 supporting the rollers 50. These slots 58b allow of the wabbling motion of ring 56, which has clutch teeth for transmitting the load. The means for equalizing load between the two sets is shown schematically in Fig. 11. The spiders 25, 55 supporting the two sets of rollers 19, 50 are connected by sleeve 13a, and the torus surfaces are connected to rotate in pairs. The load of driven shaft 63 is applied at 161 to rockers 54 which serve to precess the rollers 50. The arbitrary control is applied to rollers 19, and is indicated by wedge 162. Since the torus surfaces rotate together in pairs, and the spiders 25, 55 of the two sets also rotate together, the rollers. 19, 50 of the two sets must precess in unison for the same speed ratio, anything else being impossible. Also, the load is applied to rockers 54, and each rocker is a lever dimensioned so as to render equal the parts of the load placed upon the rollers 50 directly, and upon the rollers 19 through the spider 55, sleeve 13a, and spider 25. This explains why the arbitrary control can be applied to one set by a slider 46, Fig. 1, while the load is taken on floating equalizer ring 56, Figs. 1 and 8, of the other set.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US344064XA | 1929-05-07 | 1929-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB344064A true GB344064A (en) | 1931-03-02 |
Family
ID=21876192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39104/30A Expired GB344064A (en) | 1929-05-07 | 1929-09-02 | Improvements in or relating to variable speed power transmission |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB344064A (en) |
-
1929
- 1929-09-02 GB GB39104/30A patent/GB344064A/en not_active Expired
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