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US3198033A - Valve actuators - Google Patents

Valve actuators Download PDF

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Publication number
US3198033A
US3198033A US175769A US17576962A US3198033A US 3198033 A US3198033 A US 3198033A US 175769 A US175769 A US 175769A US 17576962 A US17576962 A US 17576962A US 3198033 A US3198033 A US 3198033A
Authority
US
United States
Prior art keywords
driving
operating means
output shaft
driving means
engagement
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
US175769A
Other languages
English (en)
Inventor
Fry Jeremy Joseph
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 PLC
Original Assignee
Rotork Engineering Co 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 Rotork Engineering Co Ltd filed Critical Rotork Engineering Co Ltd
Application granted granted Critical
Publication of US3198033A publication Critical patent/US3198033A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/081—Structural association with bearings specially adapted for worm gear drives
    • 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
    • F16K31/048—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 with torque limiters
    • 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
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19698—Spiral
    • Y10T74/19828—Worm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19847—Directly cooperating gears torque actuated safety devices

Definitions

  • valve actuating mechanism of the kind described above forms the subject matter of our prior British patent specification No. 842,581, filed July 27, 1960.
  • FIGURE 2 is a sectional elevation through the actuator of FIGURE 1 but in which the casing has been modified to show an alternative arrangement for the input of the electrical leads;
  • the nut 14 is mounted within the outer sleeve 16 which is internally screw-threaded at 17 and mounted on the output shaft 12 and is rotatable with the output shaft and the nut.
  • the lower end of the sleeve 16 is formed with an inwardly directed flange 18 which holds the nut 14 in driving engagement with the shaft 12, the assembly being completed by a locking screw 19.
  • An output shaft or a rising valve spindle 20 is externally screwthreaded at its upper end and is mounted in the nut member 14 so that the rotation of the nut member by the output shaft 12 will produce axial movement of the valve spindle 20 in one direction or the other depending upon the direction of rotation of the nut member.
  • the output shaft 12 is provided at its upper end with one or more projecting keys or like driving members one of which is shown by the reference 21.
  • the driving key 21 is maintained in a driving engagement with a transmission worm wheel which is slidable axially on the outside of the shaft 12 and which is formed with an annular slot 23 which engages over the driving key 21.
  • the worm wheel 22 is at all times in engagement with a worm 24 which is mounted on the driving shaft 25 of a reversible electric motor 26 which is mounted in a horizontally located casing 27 extending from the main casing 10.
  • a pack of Belleville washers 25A retained on shaft 25 bynut 25B permits axial movement of shaft 25 in either direction in response to a predetermined torque due to resistance to movement of the valve. This axial movement of shaft 25 is utilized to operate torque switches in a control unit as will be described.
  • FIGURE 2 of the drawings the wormwheel 22 is shown in its lowermost position in which it is disengaged from the driving key 21.
  • the wormwheel 22 is held in this position by a retaining means shown generally by the reference 28 and which will be hereinafter described.
  • the retaining means isdisengaged from the wormwheel 22, the wormwheel is moved upwardly into driving engagement with the key 21 by means of a heavy spring 29 which is mounted in an internal annular slot 30 in a lower sleeve 31 secured to the output shaft 12 for rotation therewith.
  • the manual operation of the actuator is. performed by, a handwheel 38 which is mounted coaxially about the;
  • vFlCrU RiEil the electrical leads for the actuator'extend through an aperture in a part '61 ofthe main casing 10 which is closed by aplate 62.
  • part 61 of the casing10 is formed with a fian ess for receivingfextension sections 66 whereby the casing may ment of the handwheel 38 now drivably engages the slots 43 in the skirtportion 42 of the sleeve 40 with the keys 21 on the output shaft 12.
  • This position is as-shown in FIGURES 2 and 4 of the drawings where it will be seen that .the handwheelsleeve is in' driving engagement with the "keys 21 while th'e wormwheel 22 is inlits lowermost inoperative position. It is to be noted that the worm 24 on'the motor shaft 25 is still in driving engagement with the wormwheel 22.
  • the retaining means ismountcd on an extension 44 depending from the top Iclosure plate 41 of the casing 10.
  • the retaining means comprises a latch device whichengages with the top of thewormerative position.
  • the latch device comprises a pawl 45 which is pivotally'mounted on a pin 46 in the extension 445
  • the pawl 45j carries alowerguide pin 47 which extends through the pawl 45 and has'itsainner end located within an' annular groove 48 in the handwheel sleeve 40...
  • the pivot pin46 also carries a spring 49 theends of be'extended as desired.
  • Each extension se'ctionf66 is "provided. with a similar flange .6 5 for receiving a'lfurther section or a closure plate ';67.
  • An aperture" 68 is provided'iin. one section for receiving the electrical leads and this section may be providedlwtith a' central bush 69 in which there is provided'a central plug in' which the contacts are embedded. Such an arrangement may be required to meet flameproof or other requirements.
  • the lower shaft 34driven by the worm 33 extends into a further horizontally located casing 70' extending outwardly from the main casing 10, This shaft is adapted to .”operate ancillary equipment such 'as limit control. switches forming part of the e-lectri cal control unit.
  • the motor. shaft 25. also extends into wheel 22 to hold the wormwheel in its lowermost inopcasing 70 to operate torque switches also forming part i of the electrical control unit for the motor.
  • the control shafts 25 and 34 may operate any smitable control unit, and one such unit forms the subject matter of our e0 pending'Uni-ted' States/patent application No. 197,183,
  • a stop pin'50 is mounted in the extension 44 and extends between the two arms of the spring 49. It is to be noted that the. lower end of the pawl 45 has a fiat surface 51 of rectangular section for engaging the upper surface of the worma.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
US175769A 1961-02-28 1962-02-26 Valve actuators Expired - Lifetime US3198033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7344/61A GB939353A (en) 1961-02-28 1961-02-28 Improvements in or relating to valve actuators

Publications (1)

Publication Number Publication Date
US3198033A true US3198033A (en) 1965-08-03

Family

ID=9831316

Family Applications (2)

Application Number Title Priority Date Filing Date
US175769A Expired - Lifetime US3198033A (en) 1961-02-28 1962-02-26 Valve actuators
US454368A Expired - Lifetime US3242756A (en) 1961-02-28 1965-05-10 Valve actuators

Family Applications After (1)

Application Number Title Priority Date Filing Date
US454368A Expired - Lifetime US3242756A (en) 1961-02-28 1965-05-10 Valve actuators

Country Status (3)

Country Link
US (2) US3198033A (de)
DE (2) DE1294775B (de)
GB (1) GB939353A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298249A (en) * 1964-04-22 1967-01-17 Rotork Eng Co Ltd Valve actuators
US3491615A (en) * 1967-01-24 1970-01-27 English Electric Co Ltd Actuators
US3863745A (en) * 1972-03-23 1975-02-04 Rotork Ltd Cam operated clutches with automatic lock
US4022309A (en) * 1975-03-26 1977-05-10 Philadelphia Gear Corporation De-clutch mechanism for valve operator
US4089398A (en) * 1977-04-04 1978-05-16 Dresser Industries, Inc. Automatic releasing lock
US4229995A (en) * 1978-03-16 1980-10-28 Bbc Brown, Boveri & Company, Limited Locking mechanism for an adjustable spindle drive
US4393965A (en) * 1980-11-13 1983-07-19 Andco Actuator Products, Inc. Rotary actuator
US4429592A (en) 1981-06-05 1984-02-07 The Babcock & Wilcox Company Valve operator
US4562908A (en) * 1983-10-27 1986-01-07 Andco Actuator Products, Inc. Rotary actuator
US5054592A (en) * 1988-07-22 1991-10-08 Sundstrand Corporation Manual/powered operation safety device
CN102588653A (zh) * 2012-02-29 2012-07-18 天津祥嘉流体控制系统有限公司 全能型多转式电动执行机构
NO338078B1 (no) * 2009-10-21 2016-07-25 Vetco Gray Scandinavia As Undersjøisk ventilaktuator med visuell ventilstillingsindikator koblet til en manuell overstyringsaksel
CN110442065A (zh) * 2019-08-16 2019-11-12 上海依和电力科技有限公司 一种电动执行机构控制箱

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231517B (de) * 1964-04-25 1966-12-29 Siebeck Metallwerk G M B H Motorischer Stellantrieb fuer Ventile od. dgl. mit Schneckengetriebe
US3435696A (en) * 1967-08-18 1969-04-01 Kinney Eng Inc S P Protective apparatus
US3720115A (en) * 1971-02-16 1973-03-13 T Vertin Machine element drive means
DE2754958A1 (de) * 1977-12-09 1979-06-13 Magnetic Elektromotoren Ag Einrichtung zur aufnahme des anlauf- und motortraegheitsmomentes eines elektromotors fuer ein schneckenradgetriebe
US4585216A (en) * 1984-06-04 1986-04-29 Hr Textron Inc. Linear actuator suspension system
JPH0351546Y2 (de) * 1986-01-07 1991-11-06
ES2011998A6 (es) * 1989-05-16 1990-02-16 Compania Para La Fabricacion D Electrovalvula para paso de fluidos.
US6003837A (en) * 1996-02-20 1999-12-21 Bray International, Inc. Valve actuator
GB2347197B (en) * 1996-02-20 2000-10-25 Bray Int Inc Valve actuator
GB2333143B (en) * 1996-02-20 2000-09-06 Bray Int Inc Valve actuator
DE19926639C1 (de) * 1999-06-11 2001-05-10 Buhler Motor Gmbh Stellantrieb, insbesondere für einen Kfz-Rückblickspiegel
KR102302534B1 (ko) * 2015-02-12 2021-09-16 주식회사 모아텍 엑츄에이터 및 이를 갖는 전자 기기

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US618404A (en) * 1899-01-31 Electric pump
US1996365A (en) * 1933-06-24 1935-04-02 Wendel W Clinedinst Driving device for valves and the like
US2222699A (en) * 1939-12-29 1940-11-26 Russell C Ball Compensating device for valve control
US2989878A (en) * 1959-03-25 1961-06-27 Philadelphia Gear Corp Valve actuating mechanism

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE396600C (de) * 1922-11-30 1924-06-14 Wetzchewald & Wilmes G M B H C Antrieb fuer Arbeitsmaschinen
AT102701B (de) * 1923-12-18 1926-03-10 Ncr Co Schneckengetriebe.
DE483208C (de) * 1927-03-04 1929-09-26 Demag Akt Ges Elektrisch betriebenes Hebezeug
DE572040C (de) * 1931-12-11 1933-03-09 Siemens Schuckertwerke Akt Ges Elektromotorischer Ventilantrieb, bei dem bei UEberschreiten eines bestimmten Drehmomentes eine entgegen einer Federkraft axial verschiebbare Schnecke Endausschalter betaetigt
US2052674A (en) * 1934-10-23 1936-09-01 New England Trawler Equipment Motorized unit
DE706911C (de) * 1939-02-25 1941-06-09 Demag Zug Gmbh Gekapselte Blockwinde
US2351060A (en) * 1940-11-12 1944-06-13 Martin B Mclauthlin Hoisting machine
US2548709A (en) * 1946-09-12 1951-04-10 Drexler Charles Overload automatic reversible control
CH285890A (fr) * 1950-08-02 1952-09-30 Haesler Giauque & Cie Dispositif d'arrêt pour machines automatiques.
DE933905C (de) * 1952-12-13 1955-10-06 Rahmann & Co G M B H Vorrichtung zur Ausfuehrung geradliniger Verstellbewegungen in vorzugsweise zwei entgegengesetzten Richtungen
DE1014811B (de) * 1954-07-02 1957-08-29 Francois Durand Getriebe, insbesondere Schneckenradvorgelege, mit UEberlastungssicherung und Stossdaempfer
GB811388A (en) * 1956-09-17 1959-04-02 Peter Payne Dean Overload protected electric motor drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US618404A (en) * 1899-01-31 Electric pump
US1996365A (en) * 1933-06-24 1935-04-02 Wendel W Clinedinst Driving device for valves and the like
US2222699A (en) * 1939-12-29 1940-11-26 Russell C Ball Compensating device for valve control
US2989878A (en) * 1959-03-25 1961-06-27 Philadelphia Gear Corp Valve actuating mechanism

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298249A (en) * 1964-04-22 1967-01-17 Rotork Eng Co Ltd Valve actuators
US3491615A (en) * 1967-01-24 1970-01-27 English Electric Co Ltd Actuators
US3863745A (en) * 1972-03-23 1975-02-04 Rotork Ltd Cam operated clutches with automatic lock
US4022309A (en) * 1975-03-26 1977-05-10 Philadelphia Gear Corporation De-clutch mechanism for valve operator
US4089398A (en) * 1977-04-04 1978-05-16 Dresser Industries, Inc. Automatic releasing lock
US4229995A (en) * 1978-03-16 1980-10-28 Bbc Brown, Boveri & Company, Limited Locking mechanism for an adjustable spindle drive
US4393965A (en) * 1980-11-13 1983-07-19 Andco Actuator Products, Inc. Rotary actuator
US4429592A (en) 1981-06-05 1984-02-07 The Babcock & Wilcox Company Valve operator
US4562908A (en) * 1983-10-27 1986-01-07 Andco Actuator Products, Inc. Rotary actuator
US5054592A (en) * 1988-07-22 1991-10-08 Sundstrand Corporation Manual/powered operation safety device
NO338078B1 (no) * 2009-10-21 2016-07-25 Vetco Gray Scandinavia As Undersjøisk ventilaktuator med visuell ventilstillingsindikator koblet til en manuell overstyringsaksel
CN102588653A (zh) * 2012-02-29 2012-07-18 天津祥嘉流体控制系统有限公司 全能型多转式电动执行机构
CN102588653B (zh) * 2012-02-29 2013-10-09 天津祥嘉流体控制系统有限公司 全能型多转式电动执行机构
CN110442065A (zh) * 2019-08-16 2019-11-12 上海依和电力科技有限公司 一种电动执行机构控制箱
CN110442065B (zh) * 2019-08-16 2024-04-19 上海依和电力科技有限公司 一种电动执行机构控制箱

Also Published As

Publication number Publication date
DE1294775B (de) 1969-05-08
GB939353A (en) 1963-10-16
US3242756A (en) 1966-03-29
DE1931049U (de) 1966-01-13

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