GB992039A - Improvements in and relating to speed changing mechanism - Google Patents
Improvements in and relating to speed changing mechanismInfo
- Publication number
- GB992039A GB992039A GB1746762A GB1746762A GB992039A GB 992039 A GB992039 A GB 992039A GB 1746762 A GB1746762 A GB 1746762A GB 1746762 A GB1746762 A GB 1746762A GB 992039 A GB992039 A GB 992039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cage
- cones
- balls
- variable
- driven
- 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
- F16H15/40—Gearings providing a continuous range of gear ratios in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
992,039. Variable-speed friction gearing. PARRISH INSTRUMENTS Ltd. May 7, 1963 [May 7, 1962], No. 17467/62. Heading F2D. A variable-speed friction gear comprises a pair of balls 9, 10 mounted in a cage 15 to bear on each other and one each on driving 6 and driven 8 cones. The cage 15 is moved axially by a screw and nut mechanism which may have a constant or a variable lead screw thread or a differential thread allowing reversal of motion of the cage at the ends of travel. One cone, preferably the driven, is axially loaded for grip by a Bellville washer 16, and the cage 15 is constrained to carry the balls in a direction parallel to the inclined surfaces of the cones. In the embodiment of Fig. 5, the two cones are connected to a differential gear such that movement of the balls from mid-position provides forward and reverse rotation of the output shaft 50 at varying ratios.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1746762A GB992039A (en) | 1962-05-07 | 1962-05-07 | Improvements in and relating to speed changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1746762A GB992039A (en) | 1962-05-07 | 1962-05-07 | Improvements in and relating to speed changing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB992039A true GB992039A (en) | 1965-05-12 |
Family
ID=10095683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1746762A Expired GB992039A (en) | 1962-05-07 | 1962-05-07 | Improvements in and relating to speed changing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB992039A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414665A (en) * | 1966-06-30 | 1968-12-03 | Parrish Instr Ltd | Speed changing mechanism |
| CN108708947A (en) * | 2018-05-30 | 2018-10-26 | 徐州工业职业技术学院 | A kind of stepless speed change device of frictional drive |
-
1962
- 1962-05-07 GB GB1746762A patent/GB992039A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414665A (en) * | 1966-06-30 | 1968-12-03 | Parrish Instr Ltd | Speed changing mechanism |
| CN108708947A (en) * | 2018-05-30 | 2018-10-26 | 徐州工业职业技术学院 | A kind of stepless speed change device of frictional drive |
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