GB1016388A - Improvements in or relating to epicyclic transmission units - Google Patents

Improvements in or relating to epicyclic transmission units

Info

Publication number
GB1016388A
GB1016388A GB4338363A GB4338363A GB1016388A GB 1016388 A GB1016388 A GB 1016388A GB 4338363 A GB4338363 A GB 4338363A GB 4338363 A GB4338363 A GB 4338363A GB 1016388 A GB1016388 A GB 1016388A
Authority
GB
United Kingdom
Prior art keywords
clutch
springs
spring
gear
brake
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
GB4338363A
Inventor
Edmund Frederick Ward
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.)
LAYLOCK ENGINEERING Ltd
Original Assignee
LAYLOCK ENGINEERING Ltd
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 LAYLOCK ENGINEERING Ltd filed Critical LAYLOCK ENGINEERING Ltd
Priority to GB4338363A priority Critical patent/GB1016388A/en
Publication of GB1016388A publication Critical patent/GB1016388A/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
    • 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
    • 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
    • F16H2716/02—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 mechanical

Landscapes

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

Abstract

1,016,388. Variable speed epicyclic gear. LAYCOCK ENGINEERING Ltd. Nov. 4, 1964 [Nov. 4, 1963], No. 43383/63. Heading F2D. In a motor vehicle three-element epicyclic overdrive, or underdrive, gear unit in which a clutchbrake member 7 is spring-loaded to clutch a freely mounted sun 4 to an output ring-gear 6 for direct lock-up drive, and oppositely moved by a pair of hydraulic pistons (not shown which act on bridge-pieces 22 to brake the sun 4 to a fixed casing 14 for drive at the planetary ratio (Fig. 2, not shown), the spring loading of the clutch-brake member 7 is formed by two sets of high and low rate springs 18, 19 arranged on axially - movable sleeves 23 so that initially both spring sets combine to provide a large brake disengaging force, the axial movement of the sleeves 23 being limited such that only the light, low rate, set of springs 19 are further effective to provide a small clutch engaging force, whereby undesirable rapid or snatching clutch engagement due to the normal heavy brakedisengaging spring thrust is avoided. The springs are each in sets of four, the heavy high rate springs 18 being each pre-loaded against flanges of the sleeves 23 axially located, one way, on lugs 25 of the casing 15 by circlips 26, the light, low-rate springs 19 acting alone to lightly bias the clutch-brake member 7 into clutch engagement. A free-wheel clutch (not shown) is arranged between the input and output shafts and the gears have helical teeth such that in direct drive the interaction increases the grip of the clutch-brake member 7 on the ring-gear 6 to augment the axial clutch engaging spring load during reverse and forward over-running.
GB4338363A 1963-11-04 1963-11-04 Improvements in or relating to epicyclic transmission units Expired GB1016388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4338363A GB1016388A (en) 1963-11-04 1963-11-04 Improvements in or relating to epicyclic transmission units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4338363A GB1016388A (en) 1963-11-04 1963-11-04 Improvements in or relating to epicyclic transmission units

Publications (1)

Publication Number Publication Date
GB1016388A true GB1016388A (en) 1966-01-12

Family

ID=10428529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4338363A Expired GB1016388A (en) 1963-11-04 1963-11-04 Improvements in or relating to epicyclic transmission units

Country Status (1)

Country Link
GB (1) GB1016388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012143708A2 (en) 2011-04-18 2012-10-26 Mathclick Limited Apparatus and method for converting movement into energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012143708A2 (en) 2011-04-18 2012-10-26 Mathclick Limited Apparatus and method for converting movement into energy

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