CN106409366A - Grabbing device for fuel assembly - Google Patents
Grabbing device for fuel assembly Download PDFInfo
- Publication number
- CN106409366A CN106409366A CN201611000285.4A CN201611000285A CN106409366A CN 106409366 A CN106409366 A CN 106409366A CN 201611000285 A CN201611000285 A CN 201611000285A CN 106409366 A CN106409366 A CN 106409366A
- Authority
- CN
- China
- Prior art keywords
- drive shaft
- grapple
- side wall
- raised
- fuel assembly
- 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
-
- 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
Abstract
The invention creatively provides a grabbing device for a fuel assembly. The grabbing device comprises a drive shaft and grabbing hooks arranged opposite to the drive shaft in a mirroring manner; the drive shaft penetrates through a through hole formed in the middle of a frame body and is in clearance fit with the through hole, and the part, matched with each of the grabbing hooks, on the drive shaft is set to be a stepped shaft structure; the upper parts of the grabbing hooks are respectively hinged to the lower part of the frame body, an outwardly-turned bent claw is arranged at the lower part of each of the grabbing hooks, a first bulge protruding out of an inner side wall is arranged at the upper part, close to the inner side wall of the drive shaft, on each of the grabbing hooks, a second bulge protruding out of the inner side wall is arranged in the middle of the inner side wall, the inner side wall under the second bulge inclines in the direction far away from the drive shaft, and the folding and the unfolding of each of the grabbing hooks are realized throughrelative movement of the drive shaft and the grabbing hooks. The grabbing device provided by the invention has the benefits that the design is ingenious, the operation difficulty of grabbing the fuel assembly on site can be reduced, the structure is simple, and the safety and the reliability are realized.
Description
Technical field
The invention belongs to nuclear equipment technical field, especially relates to the fuel stack on a kind of bismuth nuclear reactor for lead
The grabbing device of part.
Background technology
The gripping apparatus pattern of large scale four hook structure is mostly adopted at present, because this pattern size is inclined in commercial nuclear reactor
Greatly, design complexity, be not suitable for lead bismuth reactor structure.Lead bismuth reactor fuel operation device requires compact conformation, safety can
Lean on.
Content of the invention
In view of this, the invention is directed to a kind of crawl dress of the fuel assembly on bismuth nuclear reactor for lead
Put, to solve the problems, such as the crawl of fuel assembly.
For reaching above-mentioned purpose, the technical scheme of the invention is realized in：
A kind of grabbing device of fuel assembly, the grapple including drive shaft with respect to the setting of drive shaft mirror image, described drive
Moving axis passes through the through hole being arranged in the middle part of support body, and drive shaft is coordinated with via clearance, and drive shaft is set with the part of grapple cooperation
It is set to multidiameter structure, drive shaft includes Part I, Part II, Part III and the 4th with the part of grapple cooperation
Point, the diameter of Part I is less than the diameter of Part II, and the diameter of Part IV is less than the diameter of Part III, Part III
Diameter be less than the diameter of Part II, the junction rounding off of Part I and Part II, Part III and the 4th
The junction rounding off dividing；
The top of the described grapple lower hinge with support body respectively, the bottom of grapple is provided with the bending claws turned up, on grapple
It is provided with the first projection protruding from medial wall near the top of the medial wall of drive shaft, the middle part of medial wall is provided with and protrudes from
The second of medial wall is raised, and the medial wall of the second raised lower section tilts away from the direction of drive shaft, when drive shaft moves to
When first projection is abutted with the side wall of Part II, at the second raised arrival Part IV, when drive shaft moves to the second projection
When abutting with the side wall of Part III, at the first raised arrival Part I.
Further, when described first projection is abutted with the side wall of Part I, the second raised side wall with Part III
Abut, when the first projection is abutted with the side wall of Part II, the second projection is abutted with the side wall of Part IV.
Further, described bending claws include claw bar and claw hook, and the lower end of claw bar is affixed with claw hook integral, on claw bar away from
On the claw bar lateral wall of drive shaft and claw hook, the claw hook upper side wall away from the close claw bar lower end of drive shaft is mutually perpendicular to, when first
When projection is abutted with the side wall of Part I, claw hook upper side wall is horizontally oriented.
Further, the quantity of described grapple is two, and described support body lower end is provided with downward opening U-type groove, drives
Axle passes through U-type groove, and the top of described grapple is embedded in U-type groove, and two side wall hinges of bearing pin and U-type groove are passed through on the top of grapple
Connect.
Further, described drive shaft is connected with the driving means for driving drive shaft motion away from the end of grapple.
With respect to prior art, a kind of grabbing device of the fuel assembly described in the invention has the advantage that：
(1) the invention design is ingenious, can reduce the operation easier of scene crawl fuel assembly, and structure is simple, peace
Entirely reliable；
(2) because the bending claws of grapple are using the right angle pawl that turns up, it is more firm to capture for the invention.
Brief description
The accompanying drawing constituting the part of the invention is used for providing the invention is further understood, and the present invention creates
The schematic description and description made is used for explaining the invention, does not constitute the improper restriction to the invention.?
In accompanying drawing：
Fig. 1 is the structural representation of the invention embodiment；
Fig. 2 is the structural representation of the drive shaft described in the invention embodiment and grapple.
Description of reference numerals：
1- drive shaft；11- Part I；12- Part II；13- Part III；14- Part IV；2- grapple；21-
One is raised；22- second is raised；23- medial wall；24- bending claws；241- claw bar；2411- claw bar lateral wall；242- claw hook；2421-
Claw hook upper side wall；3- support body；31-U type groove；4- bearing pin；5- fuel assembly inner core.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can
To be mutually combined.
In the description of the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is the restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning in the invention for the term.
To describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, a kind of grabbing device of fuel assembly, including drive shaft 1 with respect to drive shaft 1 mirror image
The grapple 2 of setting.It is provided with through hole, drive shaft 1 passes through through hole, drive shaft 1 and via clearance cooperation, drive shaft 1 in the middle part of support body 3
Can slide in through hole.It is set to multidiameter structure with the part of grapple 2 cooperation in drive shaft 1.With grapple 2 in drive shaft 1
The part of cooperation includes Part I 11, Part II 12, Part III 13 and Part IV 14, and the diameter of Part I 11 is little
In the diameter of Part II 12, the diameter of Part IV 14 is less than the diameter of Part III 13, and the diameter of Part III 13 is less than
The diameter of Part II 12.Drive shaft 1 promotes grapple 2 action, the junction of Part I 11 and Part II 12 for convenience
Rounding off, the junction rounding off of Part III 13 and Part IV 14.
As depicted in figs. 1 and 2, the quantity of grapple 2 is two, and support body 3 lower end is provided with downward opening U-type groove 31, drives
Moving axis 1 passes through U-type groove 31, and the top of grapple 2 is embedded in U-type groove 31, and the top of grapple 2 passes through two of bearing pin 4 and U-type groove 31
Side walls hinged, grapple 2 can swing around bearing pin 4.The bottom of grapple 2 is provided with the bending claws 24 turned up, near driving on grapple 2
The top of the medial wall 23 of axle 1 is provided with the first projection 21 protruding from medial wall 23, and the middle part of medial wall 23 is provided with prominent
In the second projection 22 of medial wall 23, grapple 2 inwardly draws in for convenience, the medial wall 23 of the second raised 22 lower sections away from
The direction of drive shaft 1 tilts, and when drive shaft 1 is moved to first raised 21 and abutted with the side wall of Part II 12, second is raised
Abut second raised 22 at 22 arrival Part IV 14 and with the side wall of Part IV 14, now grapple 2 inwardly draws in.Work as driving
When axle 1 moves to second raised 22 and abuts with the side wall of Part III 13, at the first projection 21 arrival Part I 11 and first
Raised 21 are abutted with the side wall of Part I 11, and now grapple 2 expands outwardly.
As depicted in figs. 1 and 2, bending claws 24 include claw bar 241 and claw hook 242, and the lower end of claw bar 241 is affixed with claw hook 242
Integral, capture fuel assembly for convenience, on claw bar 241, the claw bar lateral wall 2411 away from drive shaft 1 is remote with claw hook 242
Claw hook upper side wall 2421 from close claw bar 241 lower end of drive shaft 1 is mutually perpendicular to, when the first projection 21 and Part I 11
When side wall abuts, claw hook upper side wall 2421 is horizontally oriented.More intelligent for device, drive shaft 1 is away from grapple 2
End is connected with the driving means (not shown) for driving drive shaft 1 motion.
The operation principle of the invention：
The invention relies primarily on the relative motion of drive shaft 1 and grapple 2 to complete grapple 2 and fuel assembly inner core 5
Company's button with thread off, realize grasping manipulation to fuel assembly, capture for convenience, set above the inwall of fuel assembly inner core 5
It is equipped with the boss of the circle distribution protruding from inwall.When drive shaft 1 moves downward, as shown in figure 1, the second projection 22 with respect to
Drive shaft 1 is moved upwards, and second raised 22 is abutted with the lateral wall of Part III 13, the side of the first projection 21 and Part I 11
Wall abuts, and grapple 2 expands outwardly, and realizes the company's button with fuel assembly inner core 5.When drive shaft 1 is moved upwards, the first projection 21
Move downward with respect to drive shaft 1, first raised 21 abuts with the lateral wall of Part II 12, the second projection 22 and Part IV
14 lateral wall abuts, and now grapple 2, to contract, realizes the dropout with fuel assembly, and grapple 2 is departed from fuel assembly.
Present invention wound captures in the fuel assembly that can be not only used for lead bismuth nuclear reactor, applies also for marine nuclear power little
Other heap-type such as type heap.Site fuel operation easier can be reduced using the design device, structure is simple, safe and reliable.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all this
Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement made etc., should be included in the invention
Protection domain within.
Claims (5)
1. a kind of grabbing device of fuel assembly it is characterised in that：Set including drive shaft (1) with respect to drive shaft (1) mirror image
The grapple (2) put, described drive shaft (1) passes through the through hole being arranged in the middle part of support body (3), and drive shaft (1) is coordinated with via clearance,
The part that drive shaft (1) goes up and grapple (2) coordinates is set to multidiameter structure, the part that drive shaft (1) goes up and grapple (2) coordinates
Including Part I (11), Part II (12), Part III (13) and Part IV (14), the diameter of Part I (11) is little
In the diameter of Part II (12), the diameter of Part IV (14) is less than the diameter of Part III (13), Part III (13)
Diameter is less than the diameter of Part II (12), the junction rounding off of Part I (11) and Part II (12), the 3rd
Divide the junction rounding off of (13) and Part IV (14)；
The top lower hinge with support body (3) respectively of described grapple (2), the bottom of grapple (2) is provided with the bending claws turned up
(24), the top of the upper medial wall (23) near drive shaft (1) of grapple (2) is provided with the first projection protruding from medial wall (23)
(21), the middle part of medial wall (23) is provided with second raised (22) protruding from medial wall (23), below second raised (22)
Medial wall (23) tilts away from the direction of drive shaft (1), when drive shaft (1) moves to first raised (21) and Part II
(12) when side wall abuts, second raised (22) reach Part IV (14) place, when drive shaft (1) moves to second raised (22)
When abutting with the side wall of Part III (13), first raised (21) reach Part I (11) place.
2. fuel assembly according to claim 1 grabbing device it is characterised in that：Described first raised (21) and first
When partly the side wall of (11) abuts, second raised (22) are abutted with the side wall of Part III (13), first raised (21) and second
When partly the side wall of (12) abuts, second raised (22) are abutted with the side wall of Part IV (14).
3. fuel assembly according to claim 1 grabbing device it is characterised in that：Described bending claws (24) include claw bar
(241) and claw hook (242), the lower end of claw bar (241) is affixed integral with claw hook (242), away from drive shaft on claw bar (241)
(1) on the upside of the claw hook away from close claw bar (241) lower end of drive shaft (1) on claw bar lateral wall (2411) and claw hook (242)
Wall (2421) is mutually perpendicular to, when first raised (21) are abutted with the side wall of Part I (11), claw hook upper side wall (2421) place
In horizontal direction.
4. fuel assembly according to claim 1 grabbing device it is characterised in that：The quantity of described grapple (2) is two
Individual, described support body (3) lower end is provided with downward opening U-type groove (31), and drive shaft (1) passes through U-type groove (31), described grapple
(2) top is embedded in U-type groove (31), and the top of grapple (2) is cut with scissors with two side walls of U-type groove (31) respectively by bearing pin (4)
Connect.
5. fuel assembly according to claim 1 grabbing device it is characterised in that：Described drive shaft (1) is away from grapple
(2) end is connected with the driving means for driving drive shaft (1) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000285.4A CN106409366B (en) | 2016-11-14 | 2016-11-14 | A kind of grabbing device of fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000285.4A CN106409366B (en) | 2016-11-14 | 2016-11-14 | A kind of grabbing device of fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106409366A true CN106409366A (en) | 2017-02-15 |
| CN106409366B CN106409366B (en) | 2018-01-02 |
Family
ID=59230308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611000285.4A Active CN106409366B (en) | 2016-11-14 | 2016-11-14 | A kind of grabbing device of fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409366B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657805A (en) * | 2018-05-22 | 2018-10-16 | 广东核电合营有限公司 | The old screen work hanging apparatus of Spent Fuel Pool dilatation |
| CN109830315A (en) * | 2019-01-29 | 2019-05-31 | 哈尔滨工程大学 | A kind of expansion nuclear reactor |
| CN111670092A (en) * | 2018-03-06 | 2020-09-15 | 杜尔系统股份公司 | Pivoting unit for handling a robot and associated method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH095483A (en) * | 1995-06-15 | 1997-01-10 | Mitsubishi Heavy Ind Ltd | Drive shaft removing tool for reactor control rod |
| CN101740149A (en) * | 2008-11-20 | 2010-06-16 | 中国核电工程有限公司 | Mechanical self-locking fuel assembly gripping apparatus |
| CN201689692U (en) * | 2010-01-25 | 2010-12-29 | 中科华核电技术研究院有限公司 | Fuel handling device for refueling machine |
| CN102479559A (en) * | 2010-11-29 | 2012-05-30 | 中国广东核电集团有限公司 | Emergency tripping device of reactor control rod assembly |
| US20140230585A1 (en) * | 2013-02-20 | 2014-08-21 | Hitachi-Ge Nuclear Energy, Ltd. | Gap Expanding Method of Ball Screw and Fine Motion Control Rod Drive Mechanism Incorporating Gap Expanded Ball Screw |
| CN205104242U (en) * | 2015-10-14 | 2016-03-23 | 中科华核电技术研究院有限公司 | Fuel rod grabhook test device |
| CN206210410U (en) * | 2016-11-14 | 2017-05-31 | 清华大学天津高端装备研究院 | A kind of grabbing device of fuel assembly |
-
2016
- 2016-11-14 CN CN201611000285.4A patent/CN106409366B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH095483A (en) * | 1995-06-15 | 1997-01-10 | Mitsubishi Heavy Ind Ltd | Drive shaft removing tool for reactor control rod |
| CN101740149A (en) * | 2008-11-20 | 2010-06-16 | 中国核电工程有限公司 | Mechanical self-locking fuel assembly gripping apparatus |
| CN201689692U (en) * | 2010-01-25 | 2010-12-29 | 中科华核电技术研究院有限公司 | Fuel handling device for refueling machine |
| CN102479559A (en) * | 2010-11-29 | 2012-05-30 | 中国广东核电集团有限公司 | Emergency tripping device of reactor control rod assembly |
| US20140230585A1 (en) * | 2013-02-20 | 2014-08-21 | Hitachi-Ge Nuclear Energy, Ltd. | Gap Expanding Method of Ball Screw and Fine Motion Control Rod Drive Mechanism Incorporating Gap Expanded Ball Screw |
| CN205104242U (en) * | 2015-10-14 | 2016-03-23 | 中科华核电技术研究院有限公司 | Fuel rod grabhook test device |
| CN206210410U (en) * | 2016-11-14 | 2017-05-31 | 清华大学天津高端装备研究院 | A kind of grabbing device of fuel assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670092A (en) * | 2018-03-06 | 2020-09-15 | 杜尔系统股份公司 | Pivoting unit for handling a robot and associated method |
| US11648661B2 (en) | 2018-03-06 | 2023-05-16 | Dürr Systems Ag | Pivoting unit for a handling robot and associated method |
| CN111670092B (en) * | 2018-03-06 | 2023-08-01 | 杜尔系统股份公司 | Pivoting unit for maneuvering a robot and associated method |
| CN108657805A (en) * | 2018-05-22 | 2018-10-16 | 广东核电合营有限公司 | The old screen work hanging apparatus of Spent Fuel Pool dilatation |
| CN108657805B (en) * | 2018-05-22 | 2019-12-03 | 广东核电合营有限公司 | The old screen work hanging apparatus of Spent Fuel Pool dilatation |
| CN109830315A (en) * | 2019-01-29 | 2019-05-31 | 哈尔滨工程大学 | A kind of expansion nuclear reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106409366B (en) | 2018-01-02 |
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