GB251164A - Improved variable-speed gear - Google Patents

Improved variable-speed gear

Info

Publication number
GB251164A
GB251164A GB2284925A GB2284925A GB251164A GB 251164 A GB251164 A GB 251164A GB 2284925 A GB2284925 A GB 2284925A GB 2284925 A GB2284925 A GB 2284925A GB 251164 A GB251164 A GB 251164A
Authority
GB
United Kingdom
Prior art keywords
gear
speed
train
shaft
cams
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
Application number
GB2284925A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RICHARD COBDEN WORTHINGTON
Original Assignee
RICHARD COBDEN WORTHINGTON
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RICHARD COBDEN WORTHINGTON filed Critical RICHARD COBDEN WORTHINGTON
Priority to GB2284925A priority Critical patent/GB251164A/en
Publication of GB251164A publication Critical patent/GB251164A/en
Expired legal-status Critical Current

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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • 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
    • F16H61/0293—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 purely mechanical
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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
    • F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
    • F16H2718/18—Control dependent on torque
    • F16H2718/20—Control dependent on torque only the toothed wheels remain engaged
    • F16H2718/22—Control dependent on torque only the toothed wheels remain engaged the control being mechanical
    • 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
    • F16H61/68—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 stepped gearings
    • F16H61/684—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 stepped gearings without interruption of drive
    • F16H61/686—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 stepped gearings without interruption of drive with orbital gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

251,164. Worthington, R. C., and Milner, H. Sept. 14, 1925. Addition to 239,937. Variable-speed and reversing gearing comprises two-speed or three-speed epicyclic gearing in which the speed changes are effected automatically in accordance with the load by disengaging clutches by cams, and so allowing detents to act. The two-speed gear has a single train, and a further speed or speeds are obtained by adding a train or trains. Planet gears 17, Fig. 1, carried by the driven shaft 19 mesh with side gears 16, 25. The gear 16 is in the two-speed gear fast on the driving-shaft. The gear 25 is loose and is connected through coacting face cams 24, 23, Fig. 6, with a friction clutch member 22. The member 22 is normally held by a spring 26 in engagement with a friction surface 21 upon a planet-carrying casing 20. This clutch causes the train 16, 17, 25 normally to turn solid. On increase of resistance, the cams 24, 23 act to withdraw the member 22 away from the train, upon which the freed member 22 is picked up and prevented from running loosely backwards by a detent 29. The planets 17 then roll round on the fixed gear 25 yielding a reduced speed. The three-speed gear shown comprises a second train 5, 6, 14, a second clutch 11, detent 29, and pair of cams 12, 13. This train either drives the gear 16 solid with driving-shaft 2 or at a reduced speed. A reversing-gear is shown on the right. In the configuration shown, there is a forward drive of a tail shaft 34 from the shaft 19 through clutch pins 33b upon a sliding toothed gear 33. When the gear 33 is slid to the right, a reversed drive passes through a train 32, 38, 36, 37, 33. A middle position of gear 33 yields no drive.
GB2284925A 1925-09-14 1925-09-14 Improved variable-speed gear Expired GB251164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2284925A GB251164A (en) 1925-09-14 1925-09-14 Improved variable-speed gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2284925A GB251164A (en) 1925-09-14 1925-09-14 Improved variable-speed gear

Publications (1)

Publication Number Publication Date
GB251164A true GB251164A (en) 1926-04-29

Family

ID=10186023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2284925A Expired GB251164A (en) 1925-09-14 1925-09-14 Improved variable-speed gear

Country Status (1)

Country Link
GB (1) GB251164A (en)

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