JPH0380397U - - Google Patents
Info
- Publication number
- JPH0380397U JPH0380397U JP1989141448U JP14144889U JPH0380397U JP H0380397 U JPH0380397 U JP H0380397U JP 1989141448 U JP1989141448 U JP 1989141448U JP 14144889 U JP14144889 U JP 14144889U JP H0380397 U JPH0380397 U JP H0380397U
- Authority
- JP
- Japan
- Prior art keywords
- grip
- push rod
- inner cylinder
- base
- grip base
- 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
- 239000003758 nuclear fuel Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 2
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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Load-Engaging Elements For Cranes (AREA)
Description
第１図は本考案に係る膨張スプリング取扱用工
具の一実施例を示す縦断正面図、第２図は同上工
具の使用状態における下端側を示す要部縦断拡大
正面図、第３図は同上工具の他実施例を示した上
端側の要部正面図、第４図はＢＷＲ原子燃料集合
体の上半部を示す正面図、第５図は従来の同種取
扱用工具を示す一部切欠の正面図、第６図は同上
工具の使用状態における下端側を示した要部縦断
拡大正面図、第７図は原子燃料集合体の或種の燃
料要素を示す上部端栓と膨張スプリングとの相対
関係を示した要部正面図である。
２……握持基部、２ｂ……雌螺子口、２ｅ……
上端固定レバー、２ｆ……案内縦長溝、３……グ
リツプ、３ｃ……雌螺子部、４……内筒、５……
外筒、５ａ……上端雄螺子部、６……チヤツク、
６ｂ……チヤツク口、６ｃ……膨張スプリング用
係止部、７……押し杆、７ａ……下端押当部、７
ｂ……上端レバー、７ｃ……雄螺子部、７ｄ……
案内突子、８……復帰用スプリング、Ａ……原子
燃料集合体、ａ……燃料要素、ｂ……上部端栓。
Fig. 1 is a longitudinal sectional front view showing one embodiment of the expansion spring handling tool according to the present invention, Fig. 2 is an enlarged longitudinal sectional front view of the main part showing the lower end side of the same tool in the usage state, and Fig. 3 is the same same tool. Fig. 4 is a front view of the main part on the upper end side showing another embodiment, Fig. 4 is a front view showing the upper half of the BWR nuclear fuel assembly, and Fig. 5 is a partially cutaway front view showing a conventional similar handling tool. Figure 6 is an enlarged longitudinal sectional front view of the main part showing the lower end side of the same tool in use, and Figure 7 is a relative relationship between the upper end plug and the expansion spring showing a certain type of fuel element of the nuclear fuel assembly. FIG. 2...Grip base, 2b...Female screw opening, 2e...
Upper end fixing lever, 2f...Guiding longitudinal groove, 3...Grip, 3c...Female screw portion, 4...Inner cylinder, 5...
Outer cylinder, 5a... Upper end male screw part, 6... Chack,
6b...chuck opening, 6c...expansion spring locking part, 7...push rod, 7a...lower end pressing part, 7
b... Upper end lever, 7c... Male screw part, 7d...
Guide protrusion, 8... Return spring, A... Nuclear fuel assembly, a... Fuel element, b... Upper end plug.
Claims (1)
リツプを抜止状態で回転自在なるよう係嵌して、
当該内筒を下方へ延出すると共に、当該内筒の外
側に被装した外筒の上端雄螺子部を、上記クリツ
プの雌螺子部に螺嵌し、上記内筒の下端側には、
膨張スプリング用係止部を有するチヤツク口が形
成され、かつ前記グリツプの回動操作により螺進
降下の外筒によつて口縮自在なチヤツクを設け、
前記握持基部の軸心部には、上記チヤツク口から
装入された原子燃料集合体における燃料要素の上
部端栓に当接自在な下端押当部を有する押し杆が
、昇降操作自在なるよう貫装されて前記内筒に装
入され、当該押し杆の押下により握持基部に引き
上げ力が伝達される伝動手段が具備されている原
子燃料集合体の膨張スプリング取扱用工具。 (2) 握持基部と、これに昇降操作自在なるよう
貫装の押し杆との伝動手段が、握持基部に貫設の
雌螺子口に押し杆の雄螺子部を螺合するか、握持
基部からの押し杆突出部にあつて、押し杆の上端
レバーと握持基部との間に復帰用スプリングを被
嵌し、かつ、当該上端レバーと共に握持自在な上
端固定レバーが設けられている握持基部の案内縦
長溝には、昇降動自在なるよう案内突子が係嵌さ
れてなる請求項(1)記載の原子燃料集合体の膨張
スプリング取扱用工具。[Claims for Utility Model Registration] (1) A grip formed at the upper end of the inner cylinder is fitted into the grip base so as to be rotatable without coming off,
The inner cylinder is extended downward, and the upper end male threaded part of the outer cylinder covered on the outside of the inner cylinder is screwed into the female threaded part of the clip, and the lower end side of the inner cylinder is
A chuck opening having a locking portion for an expansion spring is formed, and the chuck is provided with a chuck opening that can be freely retracted by an outer cylinder that is spirally lowered by rotating the grip;
At the axial center of the gripping base, there is a push rod having a lower end abutting part that can freely come into contact with the upper end plug of the fuel element in the nuclear fuel assembly loaded from the chuck opening, so that it can be moved up and down. A tool for handling an expansion spring of a nuclear fuel assembly, which is equipped with a transmission means that is inserted into the inner cylinder and transmits a lifting force to a grip base when the push rod is pressed down. (2) The transmission means between the grip base and the push rod that passes through it so that it can be raised and lowered is either screwed into the female threaded opening of the grip base, or At the push rod protrusion from the holding base, a return spring is fitted between the upper end lever of the push rod and the grip base, and an upper end fixing lever is provided which can be freely gripped together with the upper end lever. 2. The tool for handling an expansion spring of a nuclear fuel assembly according to claim 1, wherein a guide protrusion is fitted into the guide longitudinal groove of the grip base so as to be movable up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989141448U JPH0731199Y2 (en) | 1989-12-06 | 1989-12-06 | Tools for handling expansion springs of nuclear fuel assemblies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989141448U JPH0731199Y2 (en) | 1989-12-06 | 1989-12-06 | Tools for handling expansion springs of nuclear fuel assemblies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380397U true JPH0380397U (en) | 1991-08-16 |
| JPH0731199Y2 JPH0731199Y2 (en) | 1995-07-19 |
Family
ID=31688342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989141448U Expired - Fee Related JPH0731199Y2 (en) | 1989-12-06 | 1989-12-06 | Tools for handling expansion springs of nuclear fuel assemblies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731199Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769191A (en) * | 2017-01-08 | 2017-05-31 | 河北工程大学 | A kind of geologic prospect soil sampler |
-
1989
- 1989-12-06 JP JP1989141448U patent/JPH0731199Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769191A (en) * | 2017-01-08 | 2017-05-31 | 河北工程大学 | A kind of geologic prospect soil sampler |
| CN106769191B (en) * | 2017-01-08 | 2024-04-05 | 辽宁工程技术大学 | Geological survey geotome |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731199Y2 (en) | 1995-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |