GB875447A - Variable speed gearing for machine tools - Google Patents

Variable speed gearing for machine tools

Info

Publication number
GB875447A
GB875447A GB39563/57A GB3956357A GB875447A GB 875447 A GB875447 A GB 875447A GB 39563/57 A GB39563/57 A GB 39563/57A GB 3956357 A GB3956357 A GB 3956357A GB 875447 A GB875447 A GB 875447A
Authority
GB
United Kingdom
Prior art keywords
wheels
clutch
shaft
wheel
chain
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
GB39563/57A
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
Publication of GB875447A publication Critical patent/GB875447A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • F16H2714/00—Different types speed-changing mechanisms for toothed gearing
    • F16H2714/02—Different types speed-changing mechanisms for toothed gearing only with toothed wheels remaining engaged

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)

Abstract

875,447. Change-speed gear. HAHN, E., [trading as INDEX-WERKE KOMM.-GES., HAHN & TESSKEY]. Dec. 19, 1957 [Feb. 22, 1957], No. 39563/57. Class 80 (2). A gear for driving a machine-tool workspindle 14 at four clockwise and two anticlockwise ratios which, by a re-arrangement of gear-wheels can be changed to four anti-clockwise and two clockwise ratios, comprises three intermediate shafts V1, V2, V3 with their axes arranged to pass through the apices of an isosceles and preferably equilateral triangle, the first and second shafts V1, V2, and second and third shafts V2, V3 being permanently geared together respectively by gear pairs 42, 43 and 45, 47 and all three shafts carrying freely mounted clutch-controlled wheels, two of which, viz. 59, 71, on the shafts V2, V3, being connected by chains 61, 74 to sprockets selectively connectible to the output spindle 14 by clutches E, F. All the freely-mounted wheels are in constant mesh as follows. The wheel 71 meshes a wheel 66 on the shaft V2 and a wheel 56 on the shaft V1. Wheels 53, 59 are in constant mesh and are clutchable at A and B to the wheels 56, 66 respectively. The wheels 71, 66 can be clutched to their respective shaft at D and C. Power paths from an input motor 35 to the output spindle 14 for the ratios are as follows : 1st. Shaft V1, wheels 42, 43, clutch C, wheels 66, 71, 56, clutch A, wheels 53, 59, chain 61 and clutch E. 2nd. Shaft V1, wheels 42, 43, clutch C, wheels 66, 71, chain 74 and clutch F. 3rd. Shaft V1, wheels 42, 43, 45, 47, clutch D, wheels 71, 56, clutch A, wheels 53, 59, chain 61 and clutch E. 4th. Shaft V1, wheels 42, 43, 45, 47, clutch D, wheel 71, chain 74 and clutch F. For the two reverse ratios:- 1st. Shaft V1, wheels 42, 43, clutches C, B, wheel 59, chain 61 and clutch E. 2nd. Shaft V1, wheels 42, 43, 45, 47, clutch D, wheels 71, 66, clutch B, wheel 59, chain 61 and clutch E. All these ratios may be reversed to give four anticlockwise and two clockwise ratios by changing the wheel 43 from the shaft V2 to V3 whilst still meshing 42, this being permitted by the equidistant axes. The spindle can be locked whilst leaving the driving motor free by engaging together clutches A and B and disengaging C and D. In Fig. 11 (not shown), the chain sprockets are integral with the wheels 53, 66. Ratio relations are specified. The clutches are as shown cam controlled. The toothed wheels may be replaced by friction wheels.
GB39563/57A 1957-02-22 1957-12-19 Variable speed gearing for machine tools Expired GB875447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE875447X 1957-02-22

Publications (1)

Publication Number Publication Date
GB875447A true GB875447A (en) 1961-08-23

Family

ID=6817294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39563/57A Expired GB875447A (en) 1957-02-22 1957-12-19 Variable speed gearing for machine tools

Country Status (1)

Country Link
GB (1) GB875447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823630A (en) * 1984-11-19 1989-04-25 Lewmar Marine Limited Distributor for independently distributing rotational drive in a sailing craft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823630A (en) * 1984-11-19 1989-04-25 Lewmar Marine Limited Distributor for independently distributing rotational drive in a sailing craft

Similar Documents

Publication Publication Date Title
GB1084491A (en) Change speed gearing
JPS6465352A (en) Static pressure-mechanical output shift gear box
GB1426718A (en) Gear boxes
GB898033A (en) Improvements in or relating to steplessly variable transmission gearing
US1662688A (en) Change-speed gear box or universal divisor
GB875447A (en) Variable speed gearing for machine tools
FR2390646A1 (en) Five speed gearbox for vehicle - has parallel input and output shafts coupled by train with freely rotatable gears on counter-shafts
FR928517A (en) Gear change
GB795260A (en) An improvement in or relating to variable-speed gearboxes
GB897066A (en) Improvements in or relating to power transmission gearing
GB1094811A (en) Improvements in or relating to gear-boxes
JPS5591418A (en) Speed-change and steering device of crawler vehicle
GB930004A (en) Infinitely variable mechanical torque converter
GB1178244A (en) Change-Speed Gearing with Overdrive for all Ratios, for Example for a Motor Road Vehicle.
GB808546A (en) Improvements in or relating to gear boxes
GB1488233A (en) Change-speed transmissions
JPS53123762A (en) Speed change gear utilizing planetary gear
GB784573A (en) An improvement in or relating to epicyclic gearing
GB596708A (en) Improvements in or relating to variable speed gears
GB399629A (en) Improvements in or relating to variable speed gearing
GB1169228A (en) Improvements in or relating to Drive Mechanism with Epicyclic Gearing for Domestic Machines
JPS5649457A (en) Stepless speed change machine
GB337744A (en) Improvements in and relating to variable speed epicyclic gearing
GB594408A (en) Improvements in or relating to power transmission mechanism
GB853976A (en) Combined change-speed and reversing gear