CN201331933Y - Gripping tool for spent fuel assembly - Google Patents
Gripping tool for spent fuel assembly Download PDFInfo
- Publication number
- CN201331933Y CN201331933Y CNU2008201777281U CN200820177728U CN201331933Y CN 201331933 Y CN201331933 Y CN 201331933Y CN U2008201777281 U CNU2008201777281 U CN U2008201777281U CN 200820177728 U CN200820177728 U CN 200820177728U CN 201331933 Y CN201331933 Y CN 201331933Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- fuel assembly
- bearing
- inner sleeve
- pipe adapter
- 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 - Lifetime
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Classifications
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- 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
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to a gripping device, in particular to a gripping tool for a spent fuel assembly. An inner sleeve is moved by the manual operation under the external force and the spring force to achieve the purpose of gripping or releasing the position so as to realize the function of gripping or releasing to the fuel assembly, and a movable rod is locked through a safety pin, so the fuel assembly cannot fall off or is damaged and the safety performance is enhanced. The gripping or the releasing action to the fuel assembly is realized under the quantitative movement of the locking sleeve in the tool, the four pawls are opened or closed according to the same aperture so as to grip or release the assembly, and the four pawls ensure the verticality during the lifting and rotating process of the assembly and further ensures the safety performance.
Description
Technical field
The utility model belongs to grabbing device, is specifically related to a kind of irradiated fuel assembly gripping apparatus that fuel assembly is operated and transported.
Background technology
Irradiated fuel assembly has stronger radioactivity, deposits under water, and operating personnel are not accessible, must carry out remote-controlled operation; Need a kind of specialized equipment that fuel assembly is transported between fuel movement system and spent fuel storage rack.In these operations, structure is elongated because fuel assembly has, the demanding characteristics of heavier, the whole linearity of deadweight, and the lifting operation can only be taked vertical mode; And the transfer operation of fuel assembly generally can only need to consider security and reliability with single operation in the practical operation.If adopt existing general gripping tool to operate, when maloperation occurring, may cause coming off or damaging of fuel assembly, have influence on the operation security of nuclear power station and staff's personal safety.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of irradiated fuel assembly gripping apparatus of safe, good reliability is provided.
The utility model is achieved in that it comprises boom support, boom support comprises suspension rod, it is characterized in that: be provided with a bearing in the bottom of described boom support, bearing passes the bottom of boom support and fixedlys connected with boom support, motion bar passes bearing, the lower end of bearing is provided with outer sleeve, the lower end of motion bar is fixedly connected with inner sleeve, inner sleeve and outer sleeve are elongated member, the inboard, lower end of outer sleeve is provided with pipe adapter, and pipe adapter is fixedlyed connected with grappling fixture from the part that outer sleeve stretches out, after stretch out from pipe adapter the lower end of inner sleeve, fixedly connected with the upper end of locking sleeve, the lower end of locking sleeve is provided with the outer; The top of grappling fixture is the tube-in-tube structure that matches with locking sleeve, the inside of the center section of grappling fixture is cavity, in this cavity, be provided with 4 grippers by bearing pin apart from one another by 90 ° of directions, the grappling fixture bottom is divided into square structure of middle cavity, square internal cavities is provided with 4 supporting pins that support gripper, gripper is an arc transition towards the profile of cavity inside, and contacts with the outer, lower end that tightens sleeve; The arc transition structure makes gripper to rotate around bearing pin, and when locking sleeve was moved upward, its outer promoted gripper and shrinks; Square bottom is provided with 2 guide fingers and a register pin in the grappling fixture bottom; Lower end at inner sleeve is provided with spring abutment, and spring abutment is enclosed within on the inner sleeve, and between the pipe adapter of spring abutment and lower end; Be provided with 2 dowel holes at motion bar along the long direction of the bar segment distance of being separated by, bearing is provided with a corresponding with it pin-and-hole.
In the utility model, manual operation makes inner sleeve move under the effect of external force and spring force, arrive the position of grasping or discharging, realization is to the extracting or the release function of fuel assembly, and by safety pin pinning motion bar, fully guarantee can not to take place coming off or damaging of fuel assembly, improved security performance.To assembly extracting or release movement is to realize by quantitatively moving of the locking sleeve in the instrument, make four grippers open by same opening width or close up, and firmly grasp or releasing unit, four grippers have guaranteed that assembly keeps plumbness in promoting and transporting, further guaranteed security performance.
Description of drawings
Fig. 1 is the structural representation of irradiated fuel assembly gripping apparatus provided by the utility model;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view;
Fig. 3 is that the B-B of Fig. 1 is to cut-open view;
The irradiated fuel assembly gripping apparatus lower end structure synoptic diagram that Fig. 4 provides for the utility model.
Among the figure: 1 boom support, 2 suspension rods, 3 bearings, 4 motion bars, 5 inner sleeves, 6 outer sleeves, 7 pipe adapters, 8 grappling fixtures, 9 locking sleeves, 10 bearing pins, 11 grippers, 12 supporting pins, 13 spring abutments, 14 dowel holes, 15 backing-up screws, 16 guide fingers.
Embodiment
As Fig. 1～shown in Figure 4, a kind of irradiated fuel assembly gripping apparatus, it comprises boom support 1, and boom support 1 comprises suspension rod 2, and a bearing 3 is installed in the bottom of boom support 1, and bearing 3 passes the bottom of boom support 1 and fixedlys connected with boom support 1.Motion bar 4 passes bearing 3, is provided with 2 dowel holes 14 at motion bar 4 along the long direction of the bar segment distance of being separated by, and bearing 3 is provided with a corresponding with it pin-and-hole.The lower end of bearing 3 is provided with outer sleeve 6, and the lower end of motion bar 4 is by the inner sleeve 5 that has been threaded, and inner sleeve 5 and outer sleeve 6 are elongated member.Be provided with spring abutment 13 in the lower end of inner sleeve 5, spring abutment 13 is enclosed within on the inner sleeve 5, and spring is between the pipe adapter 7 of spring abutment 13 and lower end.Outer sleeve 6 can be designed as segmental structure, is threaded by pipe adapter 7 between every section.The inboard, lower end of outer sleeve 6 is by the pipe adapter 7 that is being threaded, and pipe adapter 7 is threaded with grappling fixture 8 from the part that outer sleeve 6 stretches out, and is provided with backing-up screw 15.Fixedly connected by bearing pin with the upper end of locking sleeve 9 after stretching out from pipe adapter 7 in the lower end of inner sleeve 5, the lower end of locking sleeve 9 is provided with the outer.
The top of grappling fixture 8 is the tube-in-tube structures that match with locking sleeve 9, and the inside of the center section of grappling fixture 8 is cavity, and the 90 ° of directions in space are provided with 4 grippers 11 by bearing pin 10 in this cavity.Grappling fixture 8 bottoms are divided into square structure of middle cavity, square internal cavities is provided with 4 supporting pins 12 that are used to support gripper 11, gripper 11 is an arc transition towards the profile of cavity inside, and contact with the outer, lower end of locking sleeve 9, this arc transition structure makes that gripper 11 can be around bearing pin 10 rotations, and when locking sleeve 9 was moved upward, its outer promoted gripper 11 and shrinks.Square bottom is provided with 2 guide fingers 16 and a register pin in grappling fixture 8 bottoms.Be provided with spring abutment 13 in the lower end of inner sleeve 5, spring abutment 13 is enclosed within on the inner sleeve 5, and between the pipe adapter 7 of spring abutment 13 and lower end.The utility model can be provided with handle on boom support 1.
The utility model is as follows by the concrete operations step:
1) the utility model is hung on the suspension hook with enhanced feature crane.
2) when lifting the utility model, when the utility model entered speed indicator, upper and lower part, the pulling speed of crane will drop to the low speed of regulation, operates.
3) grappling fixture 8 imports fuel assembly by guide finger 16, is seated on the last base of fuel assembly.
4) dowel hole 14 of the lower end of motion bar 4 is corresponding with the dowel hole 14 of the upper end of bearing 3, and by safety pin locking, this moment, gripper 11 was in the off-position.
5) withdraw register pin, hand-held handle moves down quantitative distance, promotes motion bar 4 and inner sleeve 5 downwards, and the following dowel hole 14 of motion bar 4 is corresponding with the lower end dowel hole 14 of bearing 3, by safety pin locking, this moment, gripper was in the crawl position to reach seized condition.
6) after aforesaid operations is finished, just can promote operation.
7) after the affirmation fuel assembly has been in the safe storage position, withdraws register pin and remove gripper 11 self-locking states, upwards promote motion bar 4 and inner sleeve 5 automatically by spring then, with complete operation.
Claims (5)
1. irradiated fuel assembly gripping apparatus, it comprises boom support (1), boom support (1) comprises suspension rod (2), it is characterized in that: be provided with a bearing (3) in the bottom of described boom support (1), bearing (3) passes the bottom of boom support (1) and fixedlys connected with boom support (1), motion bar (4) passes bearing (3), the lower end of bearing (3) is provided with outer sleeve (6), the lower end of motion bar (4) is fixedly connected with inner sleeve (5), inner sleeve (5) and outer sleeve (6) are elongated member, the inboard, lower end of outer sleeve (6) is provided with pipe adapter (7), pipe adapter (7) is fixedlyed connected with grappling fixture (8) from the part that outer sleeve (6) stretches out, fixedly connected with the upper end of locking sleeve (9) after stretching out from pipe adapter (7) in the lower end of inner sleeve (5), the lower end of locking sleeve (9) is provided with the outer; The tube-in-tube structure that the top of grappling fixture (8) is and locking sleeve (9) matches, the inside of the center section of grappling fixture (8) is cavity, in this cavity, be provided with 4 grippers (11) by bearing pin (10) apart from one another by 90 ° of directions, grappling fixture (8) bottom is divided into square structure of middle cavity, square internal cavities is provided with 4 supporting pins (12) that support gripper (11), gripper (11) is an arc transition towards the profile of cavity inside, and contacts with the outer, lower end of locking sleeve (9); The arc transition structure makes gripper (11) to rotate around bearing pin (10), and makes locking sleeve (9) when moving upward, and its outer promotes gripper (11) and shrinks, and square bottom is provided with 2 guide fingers (16) and a register pin in grappling fixture (8) bottom; Be provided with spring abutment (13) in the lower end of inner sleeve (5), spring abutment is enclosed within on the inner sleeve (5), and spring is positioned between the pipe adapter (7) of spring abutment (13) and lower end; Be provided with 2 dowel holes (14) at motion bar (4) along the long direction of the bar segment distance of being separated by, bearing (3) is provided with a corresponding with it pin-and-hole.
2. a kind of irradiated fuel assembly gripping apparatus as claimed in claim 1 is characterized in that: described outer sleeve (6) is a segmental structure, is threaded by pipe adapter (7) between every section.
3. a kind of irradiated fuel assembly gripping apparatus as claimed in claim 1 is characterized in that: the lower end of described motion bar (4) is threaded with inner sleeve (5), is threaded between the part that pipe adapter (7) stretches out from outer sleeve (6) and the grappling fixture (8).
4. a kind of irradiated fuel assembly gripping apparatus as claimed in claim 1 is characterized in that: be connected by bearing pin between described inner sleeve (5) and the locking sleeve (9).
5. a kind of irradiated fuel assembly gripping apparatus as claimed in claim 1 is characterized in that: be threaded between described pipe adapter (7) and the grappling fixture (8), and be provided with backing-up screw (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201777281U CN201331933Y (en) | 2008-11-20 | 2008-11-20 | Gripping tool for spent fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201777281U CN201331933Y (en) | 2008-11-20 | 2008-11-20 | Gripping tool for spent fuel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331933Y true CN201331933Y (en) | 2009-10-21 |
Family
ID=41225315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201777281U Expired - Lifetime CN201331933Y (en) | 2008-11-20 | 2008-11-20 | Gripping tool for spent fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331933Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826372A (en) * | 2010-03-15 | 2010-09-08 | 中国原子能科学研究院 | Gripping apparatus for operating reactor core assembly |
| CN101853709A (en) * | 2010-03-15 | 2010-10-06 | 中国原子能科学研究院 | Electromechanical integrated device for sodium-cooled fast reactor irradiation device operation |
| CN101850545A (en) * | 2010-03-15 | 2010-10-06 | 中国原子能科学研究院 | Manipulator for disassembling and assembling lifting bucket of fast reactor loading and unloading material hoister |
| CN102522131A (en) * | 2011-12-20 | 2012-06-27 | 中国核动力研究设计院 | Quick-change grabbing fixture type fuel rod remote grabbing tool |
| CN102795538A (en) * | 2012-08-16 | 2012-11-28 | 中国核电工程有限公司 | Novel long rod sling |
| CN102923562A (en) * | 2012-10-11 | 2013-02-13 | 中国核电工程有限公司 | Swing stem control type extension automatic lifting appliance |
| CN103996420A (en) * | 2014-04-16 | 2014-08-20 | 中国核电工程有限公司 | Fuel assembly grab using wedge to realize self-locking |
| CN103187112B (en) * | 2011-12-30 | 2015-07-29 | 中国原子能科学研究院 | Fuel element gripping apparatus |
| CN104916338A (en) * | 2014-03-13 | 2015-09-16 | 江苏核电有限公司 | Control rod grabbing mechanism for nuclear power station |
| CN106098126A (en) * | 2016-07-05 | 2016-11-09 | 中国核动力研究设计院 | A kind of burst slug rod extracts and reassembles system and using method thereof under water |
| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN106935296A (en) * | 2017-03-30 | 2017-07-07 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly crawl test instrument being horizontally mounted |
| CN108557625A (en) * | 2017-12-27 | 2018-09-21 | 太原重工股份有限公司 | It is oriented to capture apparatus |
| 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 |
| CN108735319A (en) * | 2017-04-14 | 2018-11-02 | 江苏核电有限公司 | A kind of used in nuclear power station control rod guide sleeve anticreep hook mechanism |
| CN109979632A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of underwater dismantling device of upper pipe seat of fuel component telescope-srew |
| CN109979637A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | The connection handle grappling fixture and transfer device to disintegrate under water for spentnuclear fuel associated component |
| CN113724905A (en) * | 2021-08-24 | 2021-11-30 | 中国原子能科学研究院 | Grabbing equipment |
-
2008
- 2008-11-20 CN CNU2008201777281U patent/CN201331933Y/en not_active Expired - Lifetime
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826372B (en) * | 2010-03-15 | 2012-11-14 | 中国原子能科学研究院 | Gripping apparatus for operating reactor core assembly |
| CN101853709A (en) * | 2010-03-15 | 2010-10-06 | 中国原子能科学研究院 | Electromechanical integrated device for sodium-cooled fast reactor irradiation device operation |
| CN101850545A (en) * | 2010-03-15 | 2010-10-06 | 中国原子能科学研究院 | Manipulator for disassembling and assembling lifting bucket of fast reactor loading and unloading material hoister |
| CN101850545B (en) * | 2010-03-15 | 2012-05-23 | 中国原子能科学研究院 | Manipulator for disassembling and assembling lifting bucket of fast reactor loading and unloading material hoister |
| CN101853709B (en) * | 2010-03-15 | 2012-09-12 | 中国原子能科学研究院 | Electromechanical integrated device for sodium-cooled fast reactor irradiation device operation |
| CN101826372A (en) * | 2010-03-15 | 2010-09-08 | 中国原子能科学研究院 | Gripping apparatus for operating reactor core assembly |
| CN102522131A (en) * | 2011-12-20 | 2012-06-27 | 中国核动力研究设计院 | Quick-change grabbing fixture type fuel rod remote grabbing tool |
| CN102522131B (en) * | 2011-12-20 | 2014-02-12 | 中国核动力研究设计院 | Quick-change grabbing fixture type fuel rod remote grabbing tool |
| CN103187112B (en) * | 2011-12-30 | 2015-07-29 | 中国原子能科学研究院 | Fuel element gripping apparatus |
| CN102795538A (en) * | 2012-08-16 | 2012-11-28 | 中国核电工程有限公司 | Novel long rod sling |
| CN102795538B (en) * | 2012-08-16 | 2015-03-18 | 中国核电工程有限公司 | Novel long rod sling |
| CN102923562A (en) * | 2012-10-11 | 2013-02-13 | 中国核电工程有限公司 | Swing stem control type extension automatic lifting appliance |
| CN102923562B (en) * | 2012-10-11 | 2014-11-19 | 中国核电工程有限公司 | Swing stem control type extension automatic lifting appliance |
| CN104916338A (en) * | 2014-03-13 | 2015-09-16 | 江苏核电有限公司 | Control rod grabbing mechanism for nuclear power station |
| CN103996420B (en) * | 2014-04-16 | 2016-12-07 | 中国核电工程有限公司 | A kind of fuel assembly gripping tool using wedge self-locking |
| CN103996420A (en) * | 2014-04-16 | 2014-08-20 | 中国核电工程有限公司 | Fuel assembly grab using wedge to realize self-locking |
| CN106098126A (en) * | 2016-07-05 | 2016-11-09 | 中国核动力研究设计院 | A kind of burst slug rod extracts and reassembles system and using method thereof under water |
| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN106935296A (en) * | 2017-03-30 | 2017-07-07 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly crawl test instrument being horizontally mounted |
| CN108735319A (en) * | 2017-04-14 | 2018-11-02 | 江苏核电有限公司 | A kind of used in nuclear power station control rod guide sleeve anticreep hook mechanism |
| CN109979637A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | The connection handle grappling fixture and transfer device to disintegrate under water for spentnuclear fuel associated component |
| CN109979632A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of underwater dismantling device of upper pipe seat of fuel component telescope-srew |
| CN108557625A (en) * | 2017-12-27 | 2018-09-21 | 太原重工股份有限公司 | It is oriented to capture apparatus |
| CN108557625B (en) * | 2017-12-27 | 2019-10-08 | 太原重工股份有限公司 | It is oriented to capture apparatus |
| CN109979637B (en) * | 2017-12-27 | 2024-02-09 | 核动力运行研究所 | Connecting handle grabbing head and transferring device for underwater disassembly of spent fuel related assembly |
| 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 |
| CN113724905A (en) * | 2021-08-24 | 2021-11-30 | 中国原子能科学研究院 | Grabbing equipment |
| CN113724905B (en) * | 2021-08-24 | 2024-02-20 | 中国原子能科学研究院 | Grabbing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |