GB346161A - Change-speed gearing - Google Patents

Change-speed gearing

Info

Publication number
GB346161A
GB346161A GB1071230A GB1071230A GB346161A GB 346161 A GB346161 A GB 346161A GB 1071230 A GB1071230 A GB 1071230A GB 1071230 A GB1071230 A GB 1071230A GB 346161 A GB346161 A GB 346161A
Authority
GB
United Kingdom
Prior art keywords
gears
shaft
driving
loose
secured
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
GB1071230A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1071230A priority Critical patent/GB346161A/en
Publication of GB346161A publication Critical patent/GB346161A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • 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
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

346,161. Driving machines. HERBERT, SIR A., Dunley Manor, near Whitchurch, Hampshire, and HARRISON, H. T., 44, Melville Road, Coventry. April 4, 1930, No. 10712. [Class 83 (iii).] In change-speed gearing for driving the spindle of a lathe or similar machine tool a belt-driven shaft 4 rotates a driving shaft 2 through gears 3, 5, preferably having a 1À1 ratio. The gears 5, 6 are secured to the shaft 2 and drive gears 7, 8, loose on a shaft 9 and capable of being selectively coupled therewith by friction clutches 10, 11 and a displaceable member 12. The shaft 9 carries easily removable pick-off gears 13, 14 meshing with similar gears 15, 18 secured to two lay shafts 17, 16 which carry gears 19, 20 engaging gears 21, 22 loose on a shaft 23 driving the lathe spindle 41 through a further train 42, 43. The gears 21, 22 may be coupled alternatively to the shaft 23 by friction clutches 24 and a slider 25, but preferably the slower gear 22 drives the shaft through a roller ratchet 26 which may be over-run when the clutch 24 is engaged. Alternatively, the clutches may be on the shafts 17, 16 and the gears 21, 22 secured to the shaft 23. A form of roller ratchet is described in which the gear 28, Fig. 2, is rotatably mounted on the shaft 29 by ball and roller bearings in its hub and is provided with an annular flange 33 having secured thereto blocks 34 located in the space between the flange and the driving member 32 keyed to the shaft. Rollers 38 loose in this space transmit the drive in one direction from cam blocks 36, engaging the flange, to the member 32, spring plungers 40 in the blocks 34 preventing chatter of the rollers during overrunning. The change-speed gears 7, 8, 21, 22 enable four different speeds to be readily obtained with any given pairs of pick-off gears 13 .. 18, and in an example, with the shaft 4 rotating at 600 r.p.m., pick-off gears may be selected to give a range of 8, 16, 200 and 400 r.p.m. of the spindle 41 or with other pick-off gears a range of 33, 65, 32 and 64 r.p.m. The shafts are mounted in ball bearings 44 and the loose gears are also preferably mounted on their shafts by antifriction bearings.
GB1071230A 1930-04-04 1930-04-04 Change-speed gearing Expired GB346161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1071230A GB346161A (en) 1930-04-04 1930-04-04 Change-speed gearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1071230A GB346161A (en) 1930-04-04 1930-04-04 Change-speed gearing

Publications (1)

Publication Number Publication Date
GB346161A true GB346161A (en) 1931-04-09

Family

ID=9972877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1071230A Expired GB346161A (en) 1930-04-04 1930-04-04 Change-speed gearing

Country Status (1)

Country Link
GB (1) GB346161A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117066A (en) * 1982-03-19 1983-10-05 Tok Bearing Co Ltd One-way clutch
CN103062243A (en) * 2013-01-30 2013-04-24 广西柳工机械股份有限公司 Overrunning coupler
CN110939699A (en) * 2019-12-04 2020-03-31 西南大学 Mechanical self-adaptive automatic transmission adopting multi-piece type large-torque friction clutch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117066A (en) * 1982-03-19 1983-10-05 Tok Bearing Co Ltd One-way clutch
CN103062243A (en) * 2013-01-30 2013-04-24 广西柳工机械股份有限公司 Overrunning coupler
CN103062243B (en) * 2013-01-30 2014-12-31 广西柳工机械股份有限公司 Overrunning coupler
CN110939699A (en) * 2019-12-04 2020-03-31 西南大学 Mechanical self-adaptive automatic transmission adopting multi-piece type large-torque friction clutch
CN110939699B (en) * 2019-12-04 2022-04-22 西南大学 Mechanical self-adaptive automatic transmission adopting multi-piece type large-torque friction clutch

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