GB927522A - Device for producing regulated rectilinear movements - Google Patents
Device for producing regulated rectilinear movementsInfo
- Publication number
- GB927522A GB927522A GB26478/60A GB2647860A GB927522A GB 927522 A GB927522 A GB 927522A GB 26478/60 A GB26478/60 A GB 26478/60A GB 2647860 A GB2647860 A GB 2647860A GB 927522 A GB927522 A GB 927522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driven
- nut
- sleeve
- rotor
- locking
- 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
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
- G21C19/105—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements with grasping or spreading coupling elements
-
- 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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
- G21C7/14—Mechanical drive arrangements
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
927,522. Controlling reactors. SOC. DES FORGES ET ATELIERS DU CREUSOT. July 29, 1960 [Aug. 6, 1959], No. 26478/60. Class 39 (4). [Also in Group XXIV] Means for producing rectilinear movements, e.g. of a control rod in a reactor, comprises a rotatable driving member, a driven member guided for movement along the axis of rotation of the driving member, an intermediate member which forms with the driven member a screw- and-nut assembly and which will rotate with the driving member, means for locking the intermediate member against axial movement relative to the driving member and means for releasing the locking means and resilient means biasing the intermediate member and driven member axially of the driving member to move the intermediate and driven members upon release of the locking means. In one form, the rotor 24, Fig. 1, of an electric motor having a stator 23 externally of a casing 1, drives an intermediate sleeve 11 through a splined connection 13 allowing free axial movement therebetween when locking arms 16 are pivoted from the engaged position shown. The rotor 24 turns the sleeve 11 which is in threaded engagement by means of rollers &c., Fig. 6 (not shown), with a driven sleeve or nut 8, guided for axial movement within the housing 1 by rollers 9 in grooves 10, a control rod 6 fast with the nut 8 accordingly being projected into or out of the reactor. The locking arms 16 are held in the position shown by energization of a solenoid 27 which attracts their upper ends outwardly to hold the arms against the bias of disconnecting springs, Fig. 5 (not shown), de-energization of this solenoid allowing the arms to be moved by the disconnecting springs to the position shown in Fig. 2. Release of the locking arms 16 from the intermediate sleeve 11 enables a spring 22 to project the intermediate sleeve rapidly downwards, and with it the driven nut 8, to force the control rod 6 rapidly into the reactor, thus prevented from operating. Fluid flow means, Fig. 6 (not shown), provide hydrodynamic braking to cushion the final travel of the control rod 6 &c. To restore the driven sleeve or nut 8 from the Fig. 2 position to the Fig. 1 position, the rotor 24 of the electric motor is turned to screw the intermediate sleeve 11 out of the nut, the control rod 6 being stationary. Ultimately, the intermediate sleeve 11 reaches the position shown in Fig. 3, when energization of the solenoid 27 turns the locking levers 16 to engage them with the intermediate sleeve, holding the spring 22 compressed, while the nut 8 and the control rod 6 remain in position within the reactor. Continued rotation of the rotor 24 then screws the intermediate sleeve 11 back to the position shown in Fig. 1. In a modified construction, the driven nut is in the form of a rectilinearly moving rod 8, Fig. 4, which is prevented from turning by a key 28 engaging a groove 29 therein, the rod being surrounded by the rotor 12 of the electric motor which has a stator 23 outside a housing 1. The rotor 12 is connected by a key 30 in grooves 31 for axial movement relatively to, but for rotation with, an intermediate sleeve 11 itself in threaded engagement with the driven rod 8. Locking arms 16 are, as before, controlled by a solenoid 27.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR802155A FR1241783A (en) | 1959-08-06 | 1959-08-06 | Device for performing controlled rectilinear movements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB927522A true GB927522A (en) | 1963-05-29 |
Family
ID=8718038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26478/60A Expired GB927522A (en) | 1959-08-06 | 1960-07-29 | Device for producing regulated rectilinear movements |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE593575A (en) |
DE (1) | DE1184865B (en) |
FR (1) | FR1241783A (en) |
GB (1) | GB927522A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3356874A (en) * | 1964-03-23 | 1967-12-05 | Royal Industries | Enclosed rotor drive device |
US4472348A (en) * | 1980-02-12 | 1984-09-18 | Framatome | Operating devices for control rods in a nuclear reactor |
US4618471A (en) * | 1980-01-24 | 1986-10-21 | Jeumont-Schneider | Electromagnetic safety device of a screw/nut type |
EP2107273A2 (en) * | 2008-04-03 | 2009-10-07 | Goodrich Actuation Systems Limited | Actuator |
EP2441074A4 (en) * | 2009-06-10 | 2016-07-27 | Babcock & Wilcox Nuclear Operations Group Inc | Control rod drive mechanism for nuclear reactor |
GB2489019B (en) * | 2011-03-16 | 2017-11-15 | Aker Solutions Ltd | Subsea electric actuators and latches for them |
WO2018075107A3 (en) * | 2016-07-13 | 2018-07-26 | Ge-Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
US10770189B2 (en) | 2016-07-13 | 2020-09-08 | Ge-Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
CN112017796A (en) * | 2020-07-31 | 2020-12-01 | 清华大学 | Buffer lock |
US11309095B2 (en) * | 2019-03-28 | 2022-04-19 | BWXT Advanced Technologies LLC | Control rod drive mechanism with separate latch and drive coils |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1290265B (en) * | 1966-12-12 | 1969-03-06 | Interatom | Drive arrangement for a control and shut-off rod in a gas or liquid-cooled nuclear reactor |
FR2475273B1 (en) * | 1980-02-01 | 1986-10-31 | Framatome Sa | SCREW AND NUT MECHANISM FOR CONTROLLING A NUCLEAR REACTOR |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB786486A (en) * | 1954-05-11 | 1957-11-20 | Atomic Energy Authority Uk | Improvements in or relating to nut and screw mechanisms |
BE546381A (en) * | 1955-03-25 | |||
GB795565A (en) * | 1956-02-02 | 1958-05-28 | Atomic Energy Authority Uk | Improvements in or relating to control mechanisms for nuclear reactors |
DE1046209B (en) * | 1957-01-24 | 1958-12-11 | Metallgesellschaft Ag | Combined fuel element - control element for nuclear reactors |
-
1959
- 1959-08-06 FR FR802155A patent/FR1241783A/en not_active Expired
-
1960
- 1960-07-29 BE BE593575A patent/BE593575A/en unknown
- 1960-07-29 GB GB26478/60A patent/GB927522A/en not_active Expired
- 1960-08-05 DE DES69803A patent/DE1184865B/en active Pending
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3356874A (en) * | 1964-03-23 | 1967-12-05 | Royal Industries | Enclosed rotor drive device |
US4618471A (en) * | 1980-01-24 | 1986-10-21 | Jeumont-Schneider | Electromagnetic safety device of a screw/nut type |
US4472348A (en) * | 1980-02-12 | 1984-09-18 | Framatome | Operating devices for control rods in a nuclear reactor |
EP2107273A2 (en) * | 2008-04-03 | 2009-10-07 | Goodrich Actuation Systems Limited | Actuator |
EP2107273A3 (en) * | 2008-04-03 | 2011-02-16 | Goodrich Actuation Systems Limited | Actuator |
US8272285B2 (en) | 2008-04-03 | 2012-09-25 | Goodrich Actuation Systems Limited | Failsafe actuator |
EP2441074A4 (en) * | 2009-06-10 | 2016-07-27 | Babcock & Wilcox Nuclear Operations Group Inc | Control rod drive mechanism for nuclear reactor |
US9920851B2 (en) | 2011-03-16 | 2018-03-20 | Aker Solutions Limited | Subsea electric actuators and latches for them |
GB2489019B (en) * | 2011-03-16 | 2017-11-15 | Aker Solutions Ltd | Subsea electric actuators and latches for them |
WO2018075107A3 (en) * | 2016-07-13 | 2018-07-26 | Ge-Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
GB2570220A (en) * | 2016-07-13 | 2019-07-17 | Ge Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
US10770189B2 (en) | 2016-07-13 | 2020-09-08 | Ge-Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
GB2570220B (en) * | 2016-07-13 | 2022-01-05 | Ge Hitachi Nuclear Energy Americas Llc | Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive |
US11309095B2 (en) * | 2019-03-28 | 2022-04-19 | BWXT Advanced Technologies LLC | Control rod drive mechanism with separate latch and drive coils |
CN112017796A (en) * | 2020-07-31 | 2020-12-01 | 清华大学 | Buffer lock |
CN112017796B (en) * | 2020-07-31 | 2022-09-23 | 清华大学 | Buffer lock |
Also Published As
Publication number | Publication date |
---|---|
DE1184865B (en) | 1965-01-07 |
FR1241783A (en) | 1960-09-23 |
BE593575A (en) | 1960-11-14 |
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