GB971438A - Gripping device,particularly for handling nuclear reactor fuel elements - Google Patents
Gripping device,particularly for handling nuclear reactor fuel elementsInfo
- Publication number
- GB971438A GB971438A GB37797/63A GB3779763A GB971438A GB 971438 A GB971438 A GB 971438A GB 37797/63 A GB37797/63 A GB 37797/63A GB 3779763 A GB3779763 A GB 3779763A GB 971438 A GB971438 A GB 971438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- spring
- balls
- annulus
- groove
- 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
-
- 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
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
971,438. Article engaging devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 25, 1963 [Sept. 26, 1962], No. 37797/63. Heading B8H. [Also in Division G6] A fuel element grab comprises two parts A, B normally connected by a coupling arrangement C, the part A being suspended by a hoist cable 10 and the part B having jaws 17 which automatically move to grip an internal surface of a fuel element upon lowering of the grab on to the element. Should the part B become jammed so that it cannot be removed from the reactor then by exerting sufficient tractive force on the cable the coupling arrangement C is released enabling the part A to be withdrawn and subsequently lowered on to another part B to which it becomes automatically connected by the arrangement C. The part B is constituted by a sleeve 12 normally surrounding a sleeve 4 constituting the part A. The coupling arrangement C comprises an annulus 32 housing locking balls 30 and elastically supported between two springs 36, 38, the other ends of the springs engaging abutments 40, 44 respectively on the sleeve 12, the spring 36 being several times stiffer than the spring 38. A thickened portion 24 of the sleeve 12 normally holds the balls 30 in a groove 34 in the sleeve 4, thereby connecting the parts A, B. Should the part B become jammed then sufficient tractive force is applied to the cable 10 to compress the spring 36 so that when the balls reach shoulder 26 they move outwardly from the groove 34 and permit withdrawal of the part A. On lowering the part A on to another part B, a shoulder 54 engages the balls and moves the annulus 32 downwards until a shoulder 28 is reached, whereupon the annulus remains stationary. In this condition the spring 38 is compressed so that when the groove 34 arrives opposite the balls the latter move into the groove and the spring returns the annulus to the Fig. 1 position when the weight of the part A is removed from the spring. Brake arms 46 pivoted on the sleeve 12 and biased by springs 50 move outwardly to engage a channel wall and prevent dropping of the part B when the part A is removed, the arms 46 being retracted by a ramp surface 52 on the part A when the latter is moved into a part B.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR910459A FR1342267A (en) | 1962-09-26 | 1962-09-26 | Gripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB971438A true GB971438A (en) | 1964-09-30 |
Family
ID=8787497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37797/63A Expired GB971438A (en) | 1962-09-26 | 1963-09-25 | Gripping device,particularly for handling nuclear reactor fuel elements |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE637895A (en) |
| DE (1) | DE1238641B (en) |
| FR (1) | FR1342267A (en) |
| GB (1) | GB971438A (en) |
| LU (1) | LU44435A1 (en) |
| NL (1) | NL298422A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971768A (en) * | 2014-05-05 | 2014-08-06 | 华中科技大学 | Manipulator for replacing fuel rod based on distortion energy density theory |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936089A (en) * | 1973-09-01 | 1976-02-03 | Fried. Krupp Gesellschaft Mit Beschrankter Haftung | Gripping device for a lifting mechanism, especially in a core reactor for depositing and picking up fuel elements and control rods |
| FR2674982B1 (en) * | 1991-04-08 | 1994-03-04 | Framatome | TOOL FOR HANDLING A CLUSTER OF CONSUMABLE POISONOUS PENCILS. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1233492A (en) * | 1959-08-27 | 1960-10-12 | Plessey Co Ltd | Lifting device usable in nuclear technology |
-
0
- BE BE637895D patent/BE637895A/xx unknown
- NL NL298422D patent/NL298422A/xx unknown
-
1962
- 1962-09-26 FR FR910459A patent/FR1342267A/en not_active Expired
-
1963
- 1963-09-12 LU LU44435D patent/LU44435A1/xx unknown
- 1963-09-25 GB GB37797/63A patent/GB971438A/en not_active Expired
- 1963-09-26 DE DEC30982A patent/DE1238641B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971768A (en) * | 2014-05-05 | 2014-08-06 | 华中科技大学 | Manipulator for replacing fuel rod based on distortion energy density theory |
Also Published As
| Publication number | Publication date |
|---|---|
| NL298422A (en) | |
| BE637895A (en) | |
| DE1238641B (en) | 1967-04-13 |
| LU44435A1 (en) | 1963-11-12 |
| FR1342267A (en) | 1963-11-08 |
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