GB1451888A - Releasable screw drive - Google Patents

Releasable screw drive

Info

Publication number
GB1451888A
GB1451888A GB3006972A GB3006972A GB1451888A GB 1451888 A GB1451888 A GB 1451888A GB 3006972 A GB3006972 A GB 3006972A GB 3006972 A GB3006972 A GB 3006972A GB 1451888 A GB1451888 A GB 1451888A
Authority
GB
United Kingdom
Prior art keywords
nut
screw
balls
sleeve
shaft
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
GB3006972A
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.)
Reyrolle Parsons Ltd
Original Assignee
Reyrolle Parsons 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 Reyrolle Parsons Ltd filed Critical Reyrolle Parsons Ltd
Priority to GB3006972A priority Critical patent/GB1451888A/en
Publication of GB1451888A publication Critical patent/GB1451888A/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
    • F16H25/2025—Screw mechanisms with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement
    • 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
    • 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

Landscapes

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

Abstract

1451888 Screw and nut mechanism REYROLLE PARSONS Ltd 21 Nov 1973 [27 Aug 1972] 30069/72 Heading F2Q A disengageable screw-and-nut gearing comprises a nut 8 having balls 10 in bores 9 engaging a screw-threaded shaft 4, the nut being held against rotation in a strut assembly 1 having a guide block 3 and an end piece 2a interconnected by side members (2) (Fig. 3, not shown) and being disengageable through axial movement of a sleeve 11 having apertures 12 of smaller diameter than balls 10 which allow movement outwards of the balls 10 sufficient to disengage them from the screw-thread 5a, the axial movement of the strut assembly 1 to the left on rotation of shaft 4 causing a portion 11b of sleeve 11 to contact a fixed stop 16 to disengage the nut at which time a compression spring 7 returns the assembly 1 to the right. The spring 7 acts between guide block 3 and a washer 6. The nut is reengaged with the screwthread 5a a contact between washer 6 and the now prajeoting end of sleeve 11. A worm-wheel 13, driven by a worm (not shown) rotates the shaft 4. The device may be used to set a closing spring in switchgear.
GB3006972A 1972-08-27 1972-08-27 Releasable screw drive Expired GB1451888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3006972A GB1451888A (en) 1972-08-27 1972-08-27 Releasable screw drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3006972A GB1451888A (en) 1972-08-27 1972-08-27 Releasable screw drive

Publications (1)

Publication Number Publication Date
GB1451888A true GB1451888A (en) 1976-10-06

Family

ID=10301781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3006972A Expired GB1451888A (en) 1972-08-27 1972-08-27 Releasable screw drive

Country Status (1)

Country Link
GB (1) GB1451888A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025750A1 (en) * 1979-09-11 1981-03-25 LA TECHNIQUE INTEGRALE Société dité: Disengageable rolling screw and nut device
GB2149052A (en) * 1983-10-27 1985-06-05 Eaton Corp Vernier control device
EP0569775A1 (en) * 1992-05-07 1993-11-18 A RÖMHELD GmbH & CO KG Spindle drive with quick release drive spindle
EP0770034A1 (en) * 1994-07-18 1997-05-02 Wagner Spray Tech Corporation Powered caulking gun
EP1248017A2 (en) * 2001-03-16 2002-10-09 Leica Microsystems Wetzlar GmbH Position adjusting unit
CN111927389A (en) * 2016-03-18 2020-11-13 完成创新有限责任公司 Method and apparatus for driving downhole casings and other devices

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025750A1 (en) * 1979-09-11 1981-03-25 LA TECHNIQUE INTEGRALE Société dité: Disengageable rolling screw and nut device
FR2468798A1 (en) * 1979-09-11 1981-05-08 Tech Integrale DEBRAYABLE MECHANISM, SCREW AND BEARING NUT
GB2149052A (en) * 1983-10-27 1985-06-05 Eaton Corp Vernier control device
EP0569775A1 (en) * 1992-05-07 1993-11-18 A RÖMHELD GmbH & CO KG Spindle drive with quick release drive spindle
EP0770034A1 (en) * 1994-07-18 1997-05-02 Wagner Spray Tech Corporation Powered caulking gun
EP0770034A4 (en) * 1994-07-18 1998-09-02 Wagner Spray Tech Corp Powered caulking gun
EP1248017A2 (en) * 2001-03-16 2002-10-09 Leica Microsystems Wetzlar GmbH Position adjusting unit
EP1248017A3 (en) * 2001-03-16 2004-07-07 Leica Microsystems Wetzlar GmbH Position adjusting unit
CN111927389A (en) * 2016-03-18 2020-11-13 完成创新有限责任公司 Method and apparatus for driving downhole casings and other devices

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee