GB791428A - Improvements in or relating to transmission mechanism - Google Patents

Improvements in or relating to transmission mechanism

Info

Publication number
GB791428A
GB791428A GB2836556A GB2836556A GB791428A GB 791428 A GB791428 A GB 791428A GB 2836556 A GB2836556 A GB 2836556A GB 2836556 A GB2836556 A GB 2836556A GB 791428 A GB791428 A GB 791428A
Authority
GB
United Kingdom
Prior art keywords
clutch
shaft
gear
brake
drive
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
GB2836556A
Inventor
Palmer Orr
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Priority to GB2836556A priority Critical patent/GB791428A/en
Publication of GB791428A publication Critical patent/GB791428A/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
    • 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
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed

Landscapes

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

Abstract

791,428. Change speed gearing; ratchet clutches. BORG-WARNER CORPORATION. Sept. 17, 1956, No. 28365/56. Class 80 (2). A change speed gear in which one of a pair of relatively rotatable gear elements is held stationary to provide a ratio drive comprises a jamming roller clutch to provide a direct drive from one shaft to the other, and a helical spring one-way clutch connected between the rotatable gear elements to provide a direct drive in the opposite direction, the helical spring clutch being disengageable. In an overdrive unit, the driving shaft 10 is in splined connection with a planet carrier 27 of an epicyclic gear 23, the annulus 24 being rigid with the outer member 18 of a one-way jamming roller clutch 14 the inner member 15 of which is splined to the shaft 10. The outer member 18 is integral with the output shaft 11. The roller cage 20 of the clutch 14 is biased by a spring 22 towards the engaging position. The sun gear 25 of the epicyclic gear 23 is freely rotatable on the shaft 10 and is rigidly connected with a brake drum 31 of a brake 30. An annular plate 38 splined to the sun gear 25 has a notch 37 engaged by one end tang 36a of a helical spring 36 coacting with the bore 35 of an extension of the annulus 24 to form a one-way clutch, the other end tang being held at 39 in a drum 40 freely rotatable on the sun gear 25. The spring 36 is arranged to be normally in frictional contact with the surface 35 to provide a one-way drive in a direction opposed to the clutch 14. For normal direct drive the brake 30 is released and torque is transmitted from shaft 10 to shaft 11 through the clutch 14. Overrun torque from shaft 11 to shaft 10 causes engagement of the spring clutch 33 to transmit the drive, thus providing positive direct drive in both directions. Engagement of the brake 30 holds the reaction run 25 stationary and, through drum 40, releases the clutch 33, torque is then transmitted at overdrive ratio in both directions through the epicyclic gear 23. In one modification, the planet carrier is held by the helical spring clutch; and in a further modification the arrangement of Fig. 1 is reversed to provide an underdrive.
GB2836556A 1956-09-17 1956-09-17 Improvements in or relating to transmission mechanism Expired GB791428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2836556A GB791428A (en) 1956-09-17 1956-09-17 Improvements in or relating to transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2836556A GB791428A (en) 1956-09-17 1956-09-17 Improvements in or relating to transmission mechanism

Publications (1)

Publication Number Publication Date
GB791428A true GB791428A (en) 1958-03-05

Family

ID=10274505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2836556A Expired GB791428A (en) 1956-09-17 1956-09-17 Improvements in or relating to transmission mechanism

Country Status (1)

Country Link
GB (1) GB791428A (en)

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