GB988764A - Improvements in or relating to a variable ratio gear and control mechanism therefor - Google Patents

Improvements in or relating to a variable ratio gear and control mechanism therefor

Info

Publication number
GB988764A
GB988764A GB1105763A GB1105763A GB988764A GB 988764 A GB988764 A GB 988764A GB 1105763 A GB1105763 A GB 1105763A GB 1105763 A GB1105763 A GB 1105763A GB 988764 A GB988764 A GB 988764A
Authority
GB
United Kingdom
Prior art keywords
drum
arms
ratio
electric motor
auxiliary
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
GB1105763A
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.)
Schaublin SA
Original Assignee
Schaublin SA
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 Schaublin SA filed Critical Schaublin SA
Publication of GB988764A publication Critical patent/GB988764A/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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
    • F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
    • F16H63/062—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions electric or electro-mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
    • B23Q5/142—Mechanical drives with means for varying the speed ratio step-by-step mechanically-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/005—General aspects of driving arrangements in a lathe, e.g. indexing the spindle, devices for keeping the cutting speed constant, braking or reversing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/02—Driving working spindles
    • B23Q2705/06—Mechanical drives with means for varying the speed ratio
    • B23Q2705/062—Mechanical drives with means for varying the speed ratio for lathes
    • B23Q2705/064—Mechanical drives with means for varying the speed ratio for lathes mechanically controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Friction Gearing (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

988,764. Variable-speed control; securing switch-arms on shafts. SCHAUBLIN S.A. March 20, 1963 [March 22, 1962], No. 11057/63. Headings F2D and F2U. [Also in Divisions B3 and H2] Continuously-variable ratio gearing for the drive of a lathe &c. spindle 6, Fig. 1, shown as expanding-pulley gearing 3, 5 between a constant-speed electric motor 1 and the spindle, is controlled by an auxiliary electric motor 15 driving through gears 7 to a screw 7a rotated to adjust the effective diameter of the driving pulley 3, the auxiliary motor also driving through helical gears 29 and a chain-andsprocket train 13, 14 to a rotatable speed-ratio indicating drum 8 carrying two adjustably positioned arms 18, 19, Figs. 2, 3, each coacting with an associated switch 25, 26 in the feed circuit of the auxiliary electric motor. The two arms 18, 19 are provided with pointers indicating on the scale of the drum 8 a pre-selected ratio. Buttons (not shown) are provided for the two switches 25, 26, which may thus be closed by hand, to cause the auxiliary electric motor 15 to rotate one way or the other, thus causing a change in ratio to be effected, the rotation of the auxiliary motor continuing until the arm 18 or 19 has turned sufficiently far to open the previously closed switch. Securing switch arms together.-The arms 18, 19, Figs. 2, 3, are fast at the ends of shafts 16, 20 journalled within the hub 8a of the drum 8, the remote ends of the two shafts carrying discs 17, 21 mounting pointers 23, 24 coacting with the ratio indicating scale on the drum 8. The pointers 23, 24 &c. may be adjusted circumferentially relative to the drum by slackening a nut 22.
GB1105763A 1962-03-22 1963-03-20 Improvements in or relating to a variable ratio gear and control mechanism therefor Expired GB988764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH343362A CH376738A (en) 1962-03-22 1962-03-22 Mechanism for rotating a machine tool control shaft

Publications (1)

Publication Number Publication Date
GB988764A true GB988764A (en) 1965-04-14

Family

ID=4255858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1105763A Expired GB988764A (en) 1962-03-22 1963-03-20 Improvements in or relating to a variable ratio gear and control mechanism therefor

Country Status (2)

Country Link
CH (1) CH376738A (en)
GB (1) GB988764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2945244A1 (en) * 2009-05-11 2010-11-12 Peugeot Citroen Automobiles Sa Energy i.e. electric energy, generation system for e.g. hybrid motor vehicle, has turbine connected to generator by drive train, where drive train comprises variation device for performing continuous variation of speed ratio

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59205217A (en) * 1983-05-06 1984-11-20 Amada Co Ltd Horizontal band saw machine
US5277665A (en) * 1991-05-28 1994-01-11 Paulson Peter O Reactive torque control
IT1275015B (en) * 1994-09-09 1997-07-29 Piaggio Veicoli Europ AUTOMATIC AND / OR GEARBOX WITH TRAPEZOIDAL BELT
CN109746346B (en) * 2019-02-01 2020-04-24 李长安 Full-automatic quantitative steel bar bender for bridge construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2945244A1 (en) * 2009-05-11 2010-11-12 Peugeot Citroen Automobiles Sa Energy i.e. electric energy, generation system for e.g. hybrid motor vehicle, has turbine connected to generator by drive train, where drive train comprises variation device for performing continuous variation of speed ratio

Also Published As

Publication number Publication date
CH376738A (en) 1964-04-15

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