CN210606660U - Nuclear power station control rod assembly inserting operation gripping apparatus - Google Patents
Nuclear power station control rod assembly inserting operation gripping apparatus Download PDFInfo
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- CN210606660U CN210606660U CN201920410557.0U CN201920410557U CN210606660U CN 210606660 U CN210606660 U CN 210606660U CN 201920410557 U CN201920410557 U CN 201920410557U CN 210606660 U CN210606660 U CN 210606660U
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- pull rod
- control rod
- positioning pin
- nuclear power
- pull
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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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Abstract
The utility model belongs to a nuclear power station control rod gripping apparatus, in particular to a nuclear power station control rod assembly inserting operation gripping apparatus, which comprises a positioning pin, a pull rod, a positioning pin switch, a pull ring and a locking sleeve, wherein the positioning pin is inserted in the pull rod, the positioning pin switch runs through one end of the pull rod, the positioning pin is connected with the positioning pin switch, and the end of the pull rod is connected with the pull ring through the locking sleeve; the other end of the pull rod is provided with a bearing pin; one end of the pull rod is provided with a switch guide groove; the positioning pin switch penetrates through the switch guide groove of the pull rod and is in interference fit connection with the top positioning hole in the positioning pin; one end of the pull rod is provided with an observation groove; the end part of the pull rod and the end part of the pull ring are inserted into the locking sleeve. The utility model discloses can keep the stable connection of gripping apparatus and control rod subassembly, make the control rod subassembly can not fall, when snatching the control rod subassembly, can not cause the influence to the item operation by snatching control rod subassembly next door simultaneously, small, the function is perfect, the operation is simple and easy.
Description
Technical Field
The invention belongs to a gripping apparatus for control rods of a nuclear power station, and particularly relates to an operation gripping apparatus for inserting control rod assemblies of the nuclear power station.
Background
The gripping apparatus for the matching and inserting operation of the control rod assembly of the nuclear power station is a necessary component for matching and inserting the rod making assembly of a fuel plant, and mainly achieves the gripping, transferring and releasing functions of the control rod assembly or the combustible poison rod assembly in the matching and inserting process.
When nuclear power station unit control rod subassembly received the inspection, in every control rod subassembly transportation goods package, deposited 3 groups control rod subassemblies, the space is narrow and small, and former control rod subassembly is joined in marriage and is inserted gripping apparatus lower tube socket diameter oversize, can't accurately be located and realize snatching control rod subassembly's function in control rod subassembly goods package.
Therefore, a special gripper mechanism for inserting and operating the control rod assembly of the nuclear power plant, which has the advantages of small volume, complete functions and simple operation, is urgently needed to be provided.
Disclosure of Invention
The invention aims to provide an operation gripper for inserting a control rod assembly of a nuclear power station, which can keep the stable connection between the gripper and the control rod assembly, prevent the control rod assembly from falling, cannot influence the operation of an item beside the gripped control rod assembly when the control rod assembly is gripped, and has the advantages of small volume, complete functions and simple and easy operation.
The technical scheme for realizing the purpose of the invention is as follows: the utility model provides a nuclear power station control rod subassembly joins in marriage inserts operation gripping apparatus, this gripping apparatus includes locating pin, pull rod, locating pin switch, pull ring and locking sleeve, and the locating pin is inserted in the pull rod, and the locating pin switch runs through the one end of pull rod, and the locating pin is connected with the locating pin switch, and this end of pull rod is connected with the pull ring through locking sleeve.
The other end of the pull rod is provided with a bearing pin.
The center of the pull rod is provided with a cylindrical hole along the axial direction, and the positioning pin is inserted in the cylindrical hole of the pull rod.
One end of the pull rod is provided with a switch guide groove.
The locating pin switch penetrates through the switch guide groove of the pull rod and is connected with the top end locating hole in the locating pin in an interference fit mode.
One end of the pull rod is provided with an observation groove for inspecting the fixing condition of the positioning pin.
The end part of the pull rod and the end part of the pull ring are inserted into the locking sleeve.
The pull rod and the pull ring are both fixedly connected with the locking sleeve through threads.
The pull rod is welded with the bearing pin.
The invention has the beneficial technical effects that: the gripping apparatus for the operation of inserting and inserting the control rod assembly can keep the stable connection between the gripping apparatus and the control rod assembly after the control rod assembly is gripped, so that the control rod assembly cannot fall off, and meanwhile, when the control rod assembly is gripped, the operation of an item beside the gripped control rod assembly cannot be influenced. The gripping mechanism for handling the control rod insertion and distribution of the new fuel plant of the nuclear power station safely and effectively realizes the gripping, transferring and releasing operations of the control rod assembly in the control rod assembly receiving and checking processes for more than 200 times, and effectively ensures the replacement of the control rod assembly of the nuclear power station and the insertion and distribution of the nuclear fuel loading control rod. The functions of the control rod assembly receiving and checking, the control rod switching, the inserting and matching operation and other operation processes are normal, the practical problems encountered on site are effectively solved, and the safety risk of nuclear fuel operation is reduced. The device is mainly used for grabbing, transferring and releasing the control rod assembly or the burnable poison rod assembly when the control rod assembly of the nuclear power station unit receives and checks.
Drawings
Fig. 1 is a front sectional view (in a closed state) of a gripper for inserting a control rod assembly of a nuclear power plant according to the present invention;
FIG. 2 is a top view (closed state) of a nuclear power plant control rod assembly insertion operation gripper provided by the present invention;
FIG. 3 is a right side view (closed state) of a nuclear power plant control rod assembly insertion operation gripper provided by the present invention;
FIG. 4 is a front sectional view (in an opened state) of a gripper for inserting and operating a control rod assembly of a nuclear power plant according to the present invention;
FIG. 5 is a top view (open) of a control rod assembly insertion operating gripper provided by the present invention.
In the figure: 1. the device comprises a positioning pin, a pull rod 2, a positioning pin switch 3, a pull ring 4, a locking sleeve 5, a switch guide groove 6, an observation groove 7 and a bearing pin 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3, 4 and 5, the gripper for inserting and operating a control rod assembly of a nuclear power plant provided by the invention comprises a positioning pin 1, a pull rod 2, a positioning pin switch 3, a pull ring 4 and a locking sleeve 5, wherein a cylindrical hole is formed in the center of the pull rod 2 along the axial direction, and the positioning pin 1 is inserted into the cylindrical hole of the pull rod 2. A bearing pin 8 is welded outside one end part of the pull rod 2; the other end of the pull rod 2 is provided with an observation groove 7 and a switch guide groove 6, the end of the pull rod 2 is sleeved with a locking sleeve 5, and the end part of the pull ring 4 is inserted into the locking sleeve 5.
As shown in fig. 1, 2, 3, 4 and 5, the assembling process of the gripper for inserting and operating the control rod assembly of the nuclear power plant provided by the invention is as follows: firstly, the positioning pin 1 is pushed into the pull rod 2, after the positioning pin 1 is pushed to the top, the positioning pin switch 3 penetrates through the switch guide groove 6 on the pull rod 2, and the positioning pin switch 3 is connected with the top end positioning hole on the positioning pin 1 in an interference fit manner. Sleeving the locking sleeve 5 outside the pull rod 2 from the top of the pull rod 2; the pull ring 4 is fixed at the top position of the pull rod 2, the end part of the pull ring 4 is inserted into the locking sleeve 5, and the locking sleeve 5 is fixedly connected with the pull ring 4 and the pull rod 2 through threads. An observation groove 7 is formed at one end of the pull rod 2 in the locking sleeve 5, and the observation groove 7 is used for checking the fixing condition of the positioning pin 1. And a bearing pin 8 is welded outside the other end part of the pull rod 2.
The working principle of the gripper for the matching and inserting operation of the control rod assembly of the nuclear power station provided by the invention is as follows:
as shown in figures 1, 2 and 3, the crane hook is connected to the gripper pull ring 4, leaving the gripper in a natural vertical position. The gripper is kept in an open state by lifting the positioning pin switch 3, and at the moment, the deep groove of the locking sleeve 5 is matched with the positioning pin switch 3, as shown in fig. 4 and 5.
The crane takes the gripping apparatus to reach the upper center of the control rod assembly, and after positioning, the gripping apparatus falls down, and the pull rod 2 is rotated, so that the bearing pin 8 on the pull rod 2 is not overlapped with the center positioning block of the control rod assembly star frame, and the bearing pin 8 on the pull rod 2 falls into the lower end of the center positioning block of the control rod assembly, as shown in fig. 4 and 5. The pull rod 2 is manually rotated by 90 degrees (both anticlockwise and clockwise) and is kept still, and at the moment, the bearing pin 8 on the pull rod 2 is completely overlapped with the central positioning block of the control rod assembly star frame.
And (3) lowering the positioning pin switch 3 to keep the gripping apparatus in a closed state, and inserting the positioning pin 1 into a positioning hole in the center of the control rod assembly spider as shown in figures 1, 2 and 3 to lock the gripping apparatus and the control rod assembly.
After lifting the locking sleeve 5 upwards, rotating 90 degrees (anticlockwise, clockwise all) and placing, locking and fixing the positioning pin switch 3, wherein at the moment, the shallow groove of the locking sleeve 5 is matched with the positioning pin switch 3, as shown in fig. 1, 2 and 3. At this time, the gripper cannot rotate and can not be opened, the fixing condition of the positioning pin 1 is checked through the observation groove 7 on the pull rod 2, and the gripper successfully grips the control rod assembly. The control rod assembly is transported to a destination location by a crane.
After the locking sleeve 5 is lifted up, the positioning pin switch 3 is turned by 90 degrees (anticlockwise, clockwise), and the deep groove of the locking sleeve 5 is matched with the positioning pin switch 3 at the moment, as shown in fig. 4 and 5. And lifting the positioning pin switch 3 to drive the pull rod 2 to lift up to open the gripping apparatus, as shown in fig. 4 and 5.
The pull rod 2 is manually rotated by 90 degrees (both anticlockwise and clockwise) and is kept still, and at the moment, the bearing pin 8 on the pull rod 2 is not overlapped with the central positioning block of the control rod assembly star frame. And lifting the pull ring 4 to drive the pull rod 2 to lift, so that the gripping apparatus is separated from the control rod assembly.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (9)
1. The utility model provides a nuclear power station control rod subassembly joins in marriage inserts operation gripping apparatus which characterized in that: the gripping apparatus comprises a positioning pin (1), a pull rod (2), a positioning pin switch (3), a pull ring (4) and a locking sleeve (5), wherein the positioning pin (1) is inserted into the pull rod (2), the positioning pin switch (3) penetrates through one end of the pull rod (2), the positioning pin (1) is connected with the positioning pin switch (3), and the end of the pull rod (2) is connected with the pull ring (4) through the locking sleeve (5).
2. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 1, wherein: the other end of the pull rod (2) is provided with a bearing pin (8).
3. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 2, wherein: the center of the pull rod (2) is provided with a cylindrical hole along the axial direction, and the positioning pin (1) is inserted into the cylindrical hole of the pull rod (2).
4. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 3, wherein: one end of the pull rod (2) is provided with a switch guide groove (6).
5. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 4, wherein: the locating pin switch (3) penetrates through the switch guide groove (6) of the pull rod (2), and the locating pin switch (3) is connected with a top end locating hole in the locating pin (1) in an interference fit mode.
6. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 5, wherein: one end of the pull rod (2) is provided with an observation groove (7) for checking the fixing condition of the positioning pin (1).
7. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 6, wherein: the end part of the pull rod (2) and the end part of the pull ring (4) are inserted into the locking sleeve (5).
8. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 7, wherein: the pull rod (2) and the pull ring (4) are both fixedly connected with the locking sleeve (5) through threads.
9. The nuclear power plant control rod assembly mating and inserting operation gripper as recited in claim 8, wherein: the pull rod (2) is welded with the bearing pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920410557.0U CN210606660U (en) | 2019-03-28 | 2019-03-28 | Nuclear power station control rod assembly inserting operation gripping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920410557.0U CN210606660U (en) | 2019-03-28 | 2019-03-28 | Nuclear power station control rod assembly inserting operation gripping apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN210606660U true CN210606660U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920410557.0U Active CN210606660U (en) | 2019-03-28 | 2019-03-28 | Nuclear power station control rod assembly inserting operation gripping apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841291A (en) * | 2019-03-28 | 2019-06-04 | 江苏核电有限公司 | A kind of nuclear power station C&P systems, which are matched, inserts manipulating grab |
-
2019
- 2019-03-28 CN CN201920410557.0U patent/CN210606660U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841291A (en) * | 2019-03-28 | 2019-06-04 | 江苏核电有限公司 | A kind of nuclear power station C&P systems, which are matched, inserts manipulating grab |
| CN109841291B (en) * | 2019-03-28 | 2024-04-09 | 江苏核电有限公司 | Nuclear power station control rod assembly plugging operation gripping apparatus |
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