FR2456269A1 - Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction - Google Patents

Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction

Info

Publication number
FR2456269A1
FR2456269A1 FR7911406A FR7911406A FR2456269A1 FR 2456269 A1 FR2456269 A1 FR 2456269A1 FR 7911406 A FR7911406 A FR 7911406A FR 7911406 A FR7911406 A FR 7911406A FR 2456269 A1 FR2456269 A1 FR 2456269A1
Authority
FR
France
Prior art keywords
balls
nut
ball screw
return path
ball
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.)
Granted
Application number
FR7911406A
Other languages
French (fr)
Other versions
FR2456269B3 (en
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 FR7911406A priority Critical patent/FR2456269A1/en
Publication of FR2456269A1 publication Critical patent/FR2456269A1/en
Application granted granted Critical
Publication of FR2456269B3 publication Critical patent/FR2456269B3/fr
Granted 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/163—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with balls between the co-operating parts
    • 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
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls

Abstract

The ball screw has a shaft (16) which engages the nut (17). The shaft (16) and nut (17) have matching helical grooves for balls which transmit the forces between the two shafts. The nut (17) has a continuous external helical groove which is connected at each end to the internal groove by a tube arranged tangentially to the bore of the nut. A closed circulating path is formed without any sharp changes of direction which could cause friction. The balls are confined to the external groove in the nut by a close fitting cylindrical cover (18).
FR7911406A 1979-05-07 1979-05-07 Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction Granted FR2456269A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7911406A FR2456269A1 (en) 1979-05-07 1979-05-07 Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7911406A FR2456269A1 (en) 1979-05-07 1979-05-07 Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction

Publications (2)

Publication Number Publication Date
FR2456269A1 true FR2456269A1 (en) 1980-12-05
FR2456269B3 FR2456269B3 (en) 1982-03-05

Family

ID=9225108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911406A Granted FR2456269A1 (en) 1979-05-07 1979-05-07 Ball screw with return path for balls - has tangential tube without sharp curves to reduce ball friction

Country Status (1)

Country Link
FR (1) FR2456269A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092331A1 (en) * 1982-03-30 1983-10-26 Shuton, S.A. Ball-screw rack device
EP0326657A2 (en) * 1988-01-11 1989-08-09 Cincinnati Milacron Inc. Power screw system with recirculating ball nut
DE4411602A1 (en) * 1994-04-02 1995-10-05 Frank Kalcher Worm gear with worm, wheel and housing
EP0684407A3 (en) * 1994-05-27 1997-09-10 Christiaan Arnoldus Wulffers Force amplifier with screw mechanism.
CN113090711A (en) * 2021-04-01 2021-07-09 安俊堂 3D RWW type ball worm gear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092331A1 (en) * 1982-03-30 1983-10-26 Shuton, S.A. Ball-screw rack device
EP0326657A2 (en) * 1988-01-11 1989-08-09 Cincinnati Milacron Inc. Power screw system with recirculating ball nut
EP0326657A3 (en) * 1988-01-11 1989-09-06 Cincinnati Milacron Inc. Power screw system and recirculating ball nut therefor
DE4411602A1 (en) * 1994-04-02 1995-10-05 Frank Kalcher Worm gear with worm, wheel and housing
EP0684407A3 (en) * 1994-05-27 1997-09-10 Christiaan Arnoldus Wulffers Force amplifier with screw mechanism.
CN113090711A (en) * 2021-04-01 2021-07-09 安俊堂 3D RWW type ball worm gear

Also Published As

Publication number Publication date
FR2456269B3 (en) 1982-03-05

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Legal Events

Date Code Title Description
ST Notification of lapse