JPS54140092A - Control rod driving apparatus - Google Patents
Control rod driving apparatusInfo
- Publication number
- JPS54140092A JPS54140092A JP4767778A JP4767778A JPS54140092A JP S54140092 A JPS54140092 A JP S54140092A JP 4767778 A JP4767778 A JP 4767778A JP 4767778 A JP4767778 A JP 4767778A JP S54140092 A JPS54140092 A JP S54140092A
- Authority
- JP
- Japan
- Prior art keywords
- control rod
- rotor
- stator
- drive shaft
- driving apparatus
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
PURPOSE: To accomplish secure retention of a drive shaft by means of a magnetic rotor fixed to the drive shaft in such a manner as to be confined by a permanent magnet while it fails to be driven.
CONSTITUTION: A motor or a drive shaft of the control rod driving apparatus is provided with a control rod position retaining device 10, which comprises a rotor 12 and a stator 11 The rotor 12 has convex poles 12A to 12D arranged on the circumference at an equi-space, where the position of the rotator is determined by the movement distance of the control rod 1 and the conversion ratio of a converter 2. On the other hand, the stator having convex poles (all permanent magnets) equal in polarity, number and positional relationship to the rotor is arranged on the internal circumference of a cylinder with the drive shaft 3 as center axis and wound with a coil. When the control rod fails to be driven, the pole of the rotor 12 is attracted toward the pole of the stator as opposed thereto by magnetic force. This prevents invertion of the motor shaft 4 due to own weight of the control rod. With current flowing through the coil 13, the magnetic force of the permanent magnet is cancelled whereby the rotor 12 is released from the stator 11.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53047677A JPS5811037B2 (en) | 1978-04-24 | 1978-04-24 | control rod drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53047677A JPS5811037B2 (en) | 1978-04-24 | 1978-04-24 | control rod drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54140092A true JPS54140092A (en) | 1979-10-30 |
| JPS5811037B2 JPS5811037B2 (en) | 1983-03-01 |
Family
ID=12781898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53047677A Expired JPS5811037B2 (en) | 1978-04-24 | 1978-04-24 | control rod drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5811037B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019101859A (en) * | 2017-12-05 | 2019-06-24 | アルプスアルパイン株式会社 | Operation device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63184919U (en) * | 1987-05-21 | 1988-11-28 | ||
| JPH056341Y2 (en) * | 1987-09-24 | 1993-02-18 |
-
1978
- 1978-04-24 JP JP53047677A patent/JPS5811037B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019101859A (en) * | 2017-12-05 | 2019-06-24 | アルプスアルパイン株式会社 | Operation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5811037B2 (en) | 1983-03-01 |
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