GB2291949B - Differential drive linear actuator - Google Patents

Differential drive linear actuator

Info

Publication number
GB2291949B
GB2291949B GB9514493A GB9514493A GB2291949B GB 2291949 B GB2291949 B GB 2291949B GB 9514493 A GB9514493 A GB 9514493A GB 9514493 A GB9514493 A GB 9514493A GB 2291949 B GB2291949 B GB 2291949B
Authority
GB
United Kingdom
Prior art keywords
linear actuator
differential drive
drive linear
differential
actuator
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 - Lifetime
Application number
GB9514493A
Other versions
GB2291949A (en
GB9514493D0 (en
Inventor
Christopher Robin Wiggins
Peter George Sanders
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.)
Rotork Controls Ltd
Original Assignee
Rotork Controls 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
Priority claimed from GB9415648A external-priority patent/GB9415648D0/en
Application filed by Rotork Controls Ltd filed Critical Rotork Controls Ltd
Priority to GB9514493A priority Critical patent/GB2291949B/en
Publication of GB9514493D0 publication Critical patent/GB9514493D0/en
Publication of GB2291949A publication Critical patent/GB2291949A/en
Application granted granted Critical
Publication of GB2291949B publication Critical patent/GB2291949B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16H25/2018—Screw mechanisms with both screw and nut being driven, i.e. screw and nut are both rotating
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • 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
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2065—Manual back-up means for overriding motor control, e.g. hand operation in case of failure
    • 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
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2068—Means for returning linear actuator to zero position, e.g. upon occurrence of failure by using a spring
    • 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
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors
    • 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
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • 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)
GB9514493A 1994-08-03 1995-07-14 Differential drive linear actuator Expired - Lifetime GB2291949B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9514493A GB2291949B (en) 1994-08-03 1995-07-14 Differential drive linear actuator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9415648A GB9415648D0 (en) 1994-08-03 1994-08-03 Differential drive linear actuator
GB9514493A GB2291949B (en) 1994-08-03 1995-07-14 Differential drive linear actuator

Publications (3)

Publication Number Publication Date
GB9514493D0 GB9514493D0 (en) 1995-09-13
GB2291949A GB2291949A (en) 1996-02-07
GB2291949B true GB2291949B (en) 1997-04-16

Family

ID=26305389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9514493A Expired - Lifetime GB2291949B (en) 1994-08-03 1995-07-14 Differential drive linear actuator

Country Status (1)

Country Link
GB (1) GB2291949B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10975940B2 (en) * 2017-08-24 2021-04-13 Eaton Intelligent Power Limited Actuator and method

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009197C2 (en) 1998-05-18 1999-11-19 Skf Eng & Res Centre Bv Screw actuator, and caliper with such a screw actuator.
IT1317174B1 (en) * 2000-04-06 2003-05-27 Giacomini Spa PERFECTED ACTUATOR FOR WATER AND SANITARY HEATING / COOLING SYSTEMS
GB2383627A (en) * 2001-12-31 2003-07-02 Abb Offshore Systems Ltd Fail safe valve actuator
EP1333207B1 (en) 2002-02-01 2005-08-03 Vetco Gray Controls Limited Linear actuators
CH696551A5 (en) * 2002-10-28 2007-07-31 Sonceboz Sa linear actuator for controlling a valve.
DE602005004784D1 (en) * 2004-06-23 2008-03-27 Timken Us Corp LINEAR ACTUATOR ASSEMBLY WITH TORQUE MACHINE
DE102005018259B4 (en) * 2005-04-20 2017-06-22 Renk Aktiengesellschaft Electric actuator for a device to be controlled
US20110283825A1 (en) * 2009-02-16 2011-11-24 Corcost Limited Linkage
GB201003961D0 (en) 2010-03-10 2010-04-21 British Engines Ltd An electric subsea valve actuating device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827789A (en) * 1984-06-26 1989-05-09 Western Gear Corporation Linear actuator
US5129273A (en) * 1989-04-19 1992-07-14 Teijin Seiki Co., Ltd. Actuator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827789A (en) * 1984-06-26 1989-05-09 Western Gear Corporation Linear actuator
US5129273A (en) * 1989-04-19 1992-07-14 Teijin Seiki Co., Ltd. Actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10975940B2 (en) * 2017-08-24 2021-04-13 Eaton Intelligent Power Limited Actuator and method

Also Published As

Publication number Publication date
GB2291949A (en) 1996-02-07
GB9514493D0 (en) 1995-09-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120202 AND 20120208

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120209 AND 20120215

PE20 Patent expired after termination of 20 years

Expiry date: 20150713