GB1352841A - Screw and nut mechanisms - Google Patents

Screw and nut mechanisms

Info

Publication number
GB1352841A
GB1352841A GB1352841DA GB1352841A GB 1352841 A GB1352841 A GB 1352841A GB 1352841D A GB1352841D A GB 1352841DA GB 1352841 A GB1352841 A GB 1352841A
Authority
GB
United Kingdom
Prior art keywords
screw
nuts
cage
gear
screw member
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
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Publication of GB1352841A publication Critical patent/GB1352841A/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
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2233—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with cages or means to hold the balls in position

Landscapes

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

Abstract

1352841 Screw-and-nut mechanisms FERRANTI Ltd 19 April 1971 [11 Feb 1970] 6621/70 Heading F2Q Ball screw-and-nut mechanism comprises a plurality of balls 17 located in a cylindrical cage 19 disposed between a screw member 11 and half-nuts 12, 13, the mechanism having a differential screw action by virtue of the pitch of the screw thread on the screw member 11 being different in sense from the pitch of the screw threads on the nuts 12, 13, and driving coupling means being provided between the cage 19 and the nuts 12, 13. Each ball is retained in a radial bore having a reduced diameter at the end remote from the screw member 11. The nuts 12, 13 are secured together by bolts 27 and are spaced by a plate 26 having a toothed periphery 42. Backlash may be eliminated by relative angular adjustment of the nuts 12, 13 or by relative axial adjustment thereof. A driving shaft 45<SP>1</SP> carries a gear 44<SP>1</SP>, meshing gear 42, and a toothed portion 46 which meshes a gear-wheel 47 integral with the cage 19.
GB1352841D 1970-02-11 1970-02-11 Screw and nut mechanisms Expired GB1352841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB662170 1970-02-11

Publications (1)

Publication Number Publication Date
GB1352841A true GB1352841A (en) 1974-05-15

Family

ID=9817811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352841D Expired GB1352841A (en) 1970-02-11 1970-02-11 Screw and nut mechanisms

Country Status (2)

Country Link
DE (1) DE2106176A1 (en)
GB (1) GB1352841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452018A1 (en) * 1979-03-17 1980-10-17 Hartmann & Laemmle ELECTRO-HYDRAULIC SERVO-MECHANISM
EP1067315A3 (en) * 1999-07-08 2003-06-04 Isel Co., Ltd. Ball screw with ball retainer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452018A1 (en) * 1979-03-17 1980-10-17 Hartmann & Laemmle ELECTRO-HYDRAULIC SERVO-MECHANISM
EP1067315A3 (en) * 1999-07-08 2003-06-04 Isel Co., Ltd. Ball screw with ball retainer

Also Published As

Publication number Publication date
DE2106176A1 (en) 1971-08-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees