GB952966A - Improvements in or relating to high-efficiency worm-and-nut devices - Google Patents

Improvements in or relating to high-efficiency worm-and-nut devices

Info

Publication number
GB952966A
GB952966A GB3213962A GB3213962A GB952966A GB 952966 A GB952966 A GB 952966A GB 3213962 A GB3213962 A GB 3213962A GB 3213962 A GB3213962 A GB 3213962A GB 952966 A GB952966 A GB 952966A
Authority
GB
United Kingdom
Prior art keywords
relating
tempering
followed
standards
nut devices
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
GB3213962A
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.)
LA TECHNIQUE INTEGRALE SA
Original Assignee
LA TECHNIQUE INTEGRALE 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 LA TECHNIQUE INTEGRALE SA filed Critical LA TECHNIQUE INTEGRALE SA
Publication of GB952966A publication Critical patent/GB952966A/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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H25/2252—Planetary rollers between nut and screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/02—Lapping gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H2025/249—Special materials or coatings for screws or nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Heat Treatment Of Articles (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A steel screw made from 35NCD 16 or 4NCD 16 Afnor standards (French Standards) material is hardened and tempered to obtain a VPN 420/460. The heat treatment may comprise air hardening after austenitization at 875-900 DEG C. followed by tempering at 500-520 DEG C. or an isothermic hardening operation followed by a cold treatment and subsequent tempering at 500-520 DEG C. After further machining the screw is finally sized by cold working using a controllerable unit assembly which circulates over its whole length (see Division B3). A satisfactory material may comprise 0.40% carbon, 4.20% nickel, 1.50% chrome, 0.60% molybdenum, 0.20% manganese, 0.20% silicon, remainder iron.
GB3213962A 1961-08-28 1962-08-21 Improvements in or relating to high-efficiency worm-and-nut devices Expired GB952966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR871716A FR1306053A (en) 1961-08-28 1961-08-28 Improvements to devices for transforming movements using high-performance screw-nut systems

Publications (1)

Publication Number Publication Date
GB952966A true GB952966A (en) 1964-03-18

Family

ID=8761844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3213962A Expired GB952966A (en) 1961-08-28 1962-08-21 Improvements in or relating to high-efficiency worm-and-nut devices

Country Status (6)

Country Link
BE (1) BE621168A (en)
CH (1) CH406747A (en)
DE (1) DE1301789B (en)
FR (1) FR1306053A (en)
GB (1) GB952966A (en)
NL (1) NL282432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329036A (en) * 1965-08-11 1967-07-04 Ca Atomic Energy Ltd Anti-friction power screw drive
FR2673255A1 (en) * 1991-02-21 1992-08-28 Schaeffler Waelzlager Kg THREADED ROLLER TRANSMISSION.

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508148A (en) * 1968-08-13 1971-05-31 Nirona Werke Kg Guide device
US3847033A (en) * 1972-07-13 1974-11-12 Csepeli Szerszamgepgyar Method and construction for increasing the service life of rolling screw mechanism with double-nut prestress
FR2306381A1 (en) * 1975-03-18 1976-10-29 Luc Jacques Ball nut for precision screw - with balls inserted into cage through radial holes with plastic plugs
DE2805141C2 (en) * 1978-02-07 1982-05-27 Deutsche Star Kugelhalter Gmbh, 8720 Schweinfurt Ball screw drive
US4945778A (en) * 1984-01-30 1990-08-07 Weyer Paul P Fluid-power device with rollers
US4683767A (en) * 1984-01-30 1987-08-04 Weyer Paul P Rotary actuator with backlash elmination
US4858486A (en) * 1984-01-30 1989-08-22 Weyer Paul P Rotary actuator with backlash elimination
US5027667A (en) * 1984-01-30 1991-07-02 Weyer Paul P Spring actuator with rollers
US4846007A (en) * 1986-07-03 1989-07-11 Weyer Paul P Fluid-power device using axially offset rollers
US4838103A (en) * 1986-07-03 1989-06-13 Weyer Paul P Fluid-power device with rollers
US6406188B1 (en) * 2000-09-15 2002-06-18 Hiwin Technologies Corp. Ball bushed bearing screw bolt and nut
DE102008008013B3 (en) * 2008-02-07 2009-10-01 Wilhelm Narr Gmbh & Co. Kg Device for transformation of rotating motion into axial movement, has outer profile with spindle, and screw nut surrounds and rotates spindle
DE102010036096B4 (en) * 2010-09-01 2016-07-28 Gottfried Wilhelm Leibniz Universität Hannover Ball Screw
DE102020212705A1 (en) 2020-10-08 2022-04-14 Robert Bosch Gesellschaft mit beschränkter Haftung Planetary screw drive with improved cooling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040347A (en) * 1934-09-29 1936-05-12 Lavine Gear Company Means for finishing helical forms
DE1741507U (en) * 1957-01-18 1957-03-14 Heinkel Ag Ernst ROLLING AND CALIBRATING DEVICE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329036A (en) * 1965-08-11 1967-07-04 Ca Atomic Energy Ltd Anti-friction power screw drive
FR2673255A1 (en) * 1991-02-21 1992-08-28 Schaeffler Waelzlager Kg THREADED ROLLER TRANSMISSION.

Also Published As

Publication number Publication date
CH406747A (en) 1966-01-31
NL282432A (en)
DE1301789B (en) 1969-08-28
FR1306053A (en) 1962-10-13
BE621168A (en) 1962-12-03

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