GB470392A - Improvements in or relating to gear boxes - Google Patents
Improvements in or relating to gear boxesInfo
- Publication number
- GB470392A GB470392A GB3456535A GB3456535A GB470392A GB 470392 A GB470392 A GB 470392A GB 3456535 A GB3456535 A GB 3456535A GB 3456535 A GB3456535 A GB 3456535A GB 470392 A GB470392 A GB 470392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driving
- carrier
- pistons
- gearing
- oil
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
-
- 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
- F16H2716/00—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices
- F16H2716/04—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices the control being hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
470,392. Reversing-gearing. BRADBURY, J. H., and RUSSELL, F. C. Dec. 13, 1935, Nos. 34565/35 and 33644/36. [Class 80 (ii)] Reversing-gearing comprises alternativelyengaged friction members carried by a doubleacting piston thrust in two directions by pressure oil. In the arrangement shown in Fig. 15, the friction members are the coneclutch ends of a two part drum 87 which slides on driving pins 90 passing through a wheellike carrier 88 rigid on a driven shaft 89. Internal clutch cones 85, 86 are driven constantly in opposite directions, the one directly from a drive shaft 84, and the other through a countershaft 92 and toothed and chain or like. trains 93, 94. For forward driving, pressure oil is delivered into a chamber C through a passage 95 in the shaft 89 so that the drum 87 engages the cone 85. For reversed driving, the chamber C is exhausted and the oil is delivered to the other chamber D. In an adaptation to planetary reversing gearing shown in Fig. 6, there are two separately-movable pistons 28, 29 and each carries a friction clutch and a brake. These pistons 28, 29 slide on driving pins 68 on a carrier 17 which is the carrier of the planetary reversing pinions, not shown. To drive reversely, the carrier 17 is held against rotation by admitting pressure oil simultaneouslv to outer chambers 50, whereby the pistons 28, 29 are thrust towards one another so as to bring brake surfaces 66, 67 upon them into engagement with a fixed double cone 37. To drive forwardly, the gear train is clutched solid by admitting the oil to inner chambers 25, whereby the pistons 28, 29 are thrust apart so as to bring clutch surfaces 33, 34 upon them into engagement with internal clutch cones 15, 16 fast on driving and driven shafts respectively. A complete gear device including the oil passages and manual distributing valve is described with reference to Fig. 1 (not shown), and there is described with reference to Fig. 8 (not shown) means by which the pressure oil can be used to hold against rotation the driven clutch cone 16 of Fig. 6, when the gearing is not driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3456535A GB470392A (en) | 1935-12-13 | 1935-12-13 | Improvements in or relating to gear boxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3456535A GB470392A (en) | 1935-12-13 | 1935-12-13 | Improvements in or relating to gear boxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB470392A true GB470392A (en) | 1937-08-13 |
Family
ID=10367207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3456535A Expired GB470392A (en) | 1935-12-13 | 1935-12-13 | Improvements in or relating to gear boxes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB470392A (en) |
-
1935
- 1935-12-13 GB GB3456535A patent/GB470392A/en not_active Expired
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