GB1121632A - A new or improved variable-speed gearbox - Google Patents

A new or improved variable-speed gearbox

Info

Publication number
GB1121632A
GB1121632A GB185266A GB185266A GB1121632A GB 1121632 A GB1121632 A GB 1121632A GB 185266 A GB185266 A GB 185266A GB 185266 A GB185266 A GB 185266A GB 1121632 A GB1121632 A GB 1121632A
Authority
GB
United Kingdom
Prior art keywords
gear
fast
shaft
shift
layshaft
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
GB185266A
Inventor
Thomas Robert Radcliffe
Colin Beaumont
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.)
BROWN GEAR IND
David Brown Gear Industries Ltd
Original Assignee
BROWN GEAR IND
David Brown Gear Industries 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 BROWN GEAR IND, David Brown Gear Industries Ltd filed Critical BROWN GEAR IND
Priority to GB185266A priority Critical patent/GB1121632A/en
Priority to ES335555A priority patent/ES335555A1/en
Publication of GB1121632A publication Critical patent/GB1121632A/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
    • F16H3/02—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
    • F16H3/087—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 characterised by the disposition of the gears
    • F16H3/091—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 characterised by the disposition of the gears including a single countershaft
    • F16H3/0915—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 characterised by the disposition of the gears including a single countershaft with coaxial input and output shafts
    • 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
    • F16H3/085—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 more than one output shaft
    • 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
    • F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
    • F16H2037/045—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion comprising a separate gearing unit for shifting between high and low ratio range

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

1,121,632. Change-speed gear. DAVID BROWN GEAR INDUSTRIES Ltd. 6 Jan., 1967 [14 Jan., 1966], No. 1852/66. Heading F2D. A change-speed gear having high and low speed ranges comprises coaxial input and output shafts 11, 12, a parallel layshaft 13, a gear 14 fast on the input shaft and constantly meshing a gear 15 free on and clutchable to the layshaft, a gear 17 fast on the layshaft and constantly meshing a gear 16 rotationally free coaxially of the input output shafts and clutchable to either or both of said shafts, and gears 18-21 fast on the layshaft and constantly meshing gears 118-121 free on and clutchable to the output shaft. The gear 16 may berotatably mounted on the end of the input or, as shown, the output shaft. The pitch circle diameter of either one of the gears 14, 16 exceeds that of the other. Positive clutch sleeves 30, 31, respectively for clutching the gears 16, 17 to the input shaft and the layshaft, are axially slidable by forks (32), (33) interconnected by a lever (34) to ensure the engagement of only one of these clutches at a time, the forks being operated by a piston (37) actuated pneumatically or hydraulically under the control of a valve which is Bowden-cable operated by a gear-shift levermounted push-pull button. A reverse idler shaft (22) has free thereon and clutchable thereto a gear (23) constantly meshing a gear 24 fast on the layshaft, and a gear (25) fast thereon meshing a gear 26 splined on the output shaft and integral with a positive clutch sleeve 42. Positive clutch sleeves 40, 41 and the sleeve 42, respectively for clutching the gears 16, 118 and 119, 120 and 21, to the output shaft are axially slidable, from neutral positions, by forks 140- 142 fast on shift rods 43-45. A clutch sleeve (49) for clutching the gear (23) to the reverse idler shaft is axially slidable, from a neutral position, by a fork (48) connected by a lever (47) to a shift rod (46). The shift rods are selectively shiftable by a gear-shift-lever-actuable, rotatable (cross-shift) and slidable (gear-establishment), spindle 56 having an arm 55 the end of which is engageable in grooves of members 50 carried by the shift rods. A T-sectioned interlock member 52 engaging the grooves of the members 50 and movable with the arm 55 during cross-shift prevents simultaneous gearestablishing movement of more than one shift rod. A power take-off shaft 27 is driven through speed increasing gears 28, 29 respectively fast on the layshaft 13 and free on and clutchable to the shaft 27. A brake engageable on disengagement of the main, engine to input shaft, friction clutch (not shown) comprises a disc 60 fast on the input shaft and a shoe 59 carried by a lever 58 which is acted on by the clutch-actuating cross-shaft 57 through an arm 61, a rod 62, rod abutments 63, 64 and springs 65, 66.
GB185266A 1966-01-14 1966-01-14 A new or improved variable-speed gearbox Expired GB1121632A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB185266A GB1121632A (en) 1966-01-14 1966-01-14 A new or improved variable-speed gearbox
ES335555A ES335555A1 (en) 1966-01-14 1967-01-12 A new or improved variable-speed gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB185266A GB1121632A (en) 1966-01-14 1966-01-14 A new or improved variable-speed gearbox

Publications (1)

Publication Number Publication Date
GB1121632A true GB1121632A (en) 1968-07-31

Family

ID=9729138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB185266A Expired GB1121632A (en) 1966-01-14 1966-01-14 A new or improved variable-speed gearbox

Country Status (2)

Country Link
ES (1) ES335555A1 (en)
GB (1) GB1121632A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917774A1 (en) * 1978-08-02 1980-02-14 Toyota Motor Co Ltd REVERSE GEAR SHIFTING MECHANISM FOR A GEAR GEAR TRANSMISSION
DE3003080A1 (en) * 1979-01-30 1980-08-07 Nissan Motor MANUAL TRANSMISSION FOR A MOTOR VEHICLE
CN108953508A (en) * 2018-09-17 2018-12-07 李宝森 A kind of numerically-controlled machine tool speed-changing gear box
CN110388422A (en) * 2019-08-16 2019-10-29 盐城普兹机械有限公司 Drilling machine vertical hand-operated four-speed gear shift case

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917774A1 (en) * 1978-08-02 1980-02-14 Toyota Motor Co Ltd REVERSE GEAR SHIFTING MECHANISM FOR A GEAR GEAR TRANSMISSION
DE3003080A1 (en) * 1979-01-30 1980-08-07 Nissan Motor MANUAL TRANSMISSION FOR A MOTOR VEHICLE
US4669326A (en) * 1979-01-30 1987-06-02 Tamio Kawamoto Transmission for an automobile
CN108953508A (en) * 2018-09-17 2018-12-07 李宝森 A kind of numerically-controlled machine tool speed-changing gear box
CN108953508B (en) * 2018-09-17 2024-03-15 李宝森 Gear box of numerical control machine tool
CN110388422A (en) * 2019-08-16 2019-10-29 盐城普兹机械有限公司 Drilling machine vertical hand-operated four-speed gear shift case

Also Published As

Publication number Publication date
ES335555A1 (en) 1968-03-16

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