CN208507203U - A kind of claw device applied to control rod drive mechanism - Google Patents
A kind of claw device applied to control rod drive mechanism Download PDFInfo
- Publication number
- CN208507203U CN208507203U CN201820345298.3U CN201820345298U CN208507203U CN 208507203 U CN208507203 U CN 208507203U CN 201820345298 U CN201820345298 U CN 201820345298U CN 208507203 U CN208507203 U CN 208507203U
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- quill
- hook
- magnetic pole
- armature
- drive mechanism
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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 relates to a kind of claw devices applied to control rod drive mechanism, it include: the quill that shape is slender type hollow pipe, the main component being assemblied in outside quill: magnetic pole, lift armature, hook, location nut etc., and the accessory being used cooperatively with above-mentioned main component are promoted；The promotion magnetic pole is connected through a screw thread with quill upper end, quill and promotion magnetic pole stepped hole gap setting adjustment ring；Quill bottom is connected through a screw thread with location nut, in location nut stepped hole and quill gap setting adjustment ring.The application optimizes the structure of claw device, guarantees the reliability being threadedly coupled, avoids the case where impact force passes to quill by positioning pin, ensure that promotion air gap, keeps control rod drive mechanism operation more reliable, safety.
Description
Technical field
The utility model relates to a kind of claw device, more specifically to a kind of applied to control rod drive mechanism
Claw device.
Background technique
Presurized water reactor (Pressurized Water Reactor, PWR) frequently with control rod drive mechanism (Control
Rod Drive Mechanism, CRDM) type, there are ball nut formula, rack-gear type, three kinds of magnetic force hoisting type (Alcula type),
Wherein magnetic force hoisting type is most widely used.
Control rod drive mechanism is that reaction reator body uniquely moves equipment, it is logical by certain timing control coil block
Power-off controls the movement of hook component hook and magnetic pole by electromagnetic induction principle, realizes to the promotion of control rod, underthrust, guarantor
It holds and is acted with scram etc..Hook component is the important component in control rod drive mechanism, it determines entire control rod driving machine
The performance of structure.By three coil blocks, the promotion of hook component, mobile and holding armature movement are controlled, is realized to two sets of hooks
Control rod drive mechanism promotion, underthrust, holding and scram movement are completed in the control of pawl.
Hook in existing magnetic control rod drive mechanism promotes magnetic pole and the connection type of quill is adopted
It is threadedly coupled, prevents from rotating by pin, the shortcomings that this kind of mode is in mechanism operation, and impact force is transmitted to by pin
On quill.Since impact force is a kind of alternating load, and force value is larger, and longtime running can cause alternating shear power to pin,
It is final the result is that pin is caused to cut risk.
In the heap-type control rod drive mechanism hook component such as AP1000, CPR1000, promotes magnetic pole and quill uses spiral shell
Line connection, matches positioning screw hole afterwards, beats positioning screw, and lift armature, which constantly impacts, at runtime promotes magnetic pole, such as connects spiral shell
Line has error or longtime running screw thread to cease to be faithful, and impact force can act on positioning screw first, then be transferred to casing by positioning screw
On axis, lead to positioning screw bore deformation or failure afterwards over time, it cannot be guaranteed that promoting air gap.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, providing drives control rod
Motivation structure runs a kind of more reliable, safe claw device applied to control rod drive mechanism.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of applied to control rod driving machine
The claw device of structure.The claw device includes: the quill that shape is slender type hollow pipe, is assemblied in outside quill
Main component: it promotes magnetic pole, lift armature, hook, buffer shaft, mobile armature, connecting rod, keep magnetic pole, holding armature, positioning spiral shell
Accessory that is female and being used cooperatively with above-mentioned main component；The promotion magnetic pole and quill upper end is connected by screw thread
It connects, quill and promotion magnetic pole stepped hole gap setting adjustment ring；Quill lower end is connected through a screw thread with location nut, fixed
Position nut stepped hole and quill gap setting adjustment ring.
As a further improvement of the above technical scheme, above-described a kind of hook applied to control rod drive mechanism
Device, casing axial end and promotion magnetic pole when the adjustment ring and promotion magnetic pole and casing axle thread of the quill upper end are tightened
Interstitial structure match；The adjustment ring of quill lower end is when quill is threadedly coupled close with location nut, with positioning spiral shell
The interstitial structure of female stepped hole and quill matches.
As a further improvement of the above technical scheme, above-described a kind of hook applied to control rod drive mechanism
Device, the accessory include stop pin, promote spring, lock-screw, mobile spring, hook axis, keep spring, spring
Set, hook support frame, guide plate pin, guide plate, pitman shaft, hook support sleeve, transmitting spring, antifreeze plate, buffering spacer；It is described
Main component and accessory connection type are as follows: promoted magnetic pole be connected through a screw thread with quill upper end, quill with mention
Magnetic pole stepped hole gap setting adjustment ring is risen, stop pin is filled；Lift armature is connected through a screw thread with buffer shaft, and uses lock-screw
It presses closer, covers on quill；Equipped with buffering spacer and promotion spring between lift armature and promotion magnetic pole；Hook is pacified by hook axis
On buffer shaft, guide plate is mounted on buffer shaft by guide plate pin；Mobile armature covers on the outside of buffer shaft, mobile armature
Antifreeze plate and mobile spring are installed between lift armature；Connecting rod is connected by pitman shaft one end with hook, the other end and movement
Armature is connected；It keeps magnetic pole to be connected through a screw thread to be connected with quill, with lock-screw tightening；Holding armature is covered in quill
On, antifreeze plate is installed between holding magnetic pole and keeps spring；Hook support sleeve covers on the outside of quill, and by spring pocket and
Spring is transmitted in quill upper limit；Guide plate is connected by being oriented to board shaft with hook support frame, and hook passes through hook axis and hook
Pawl support frame is connected；Hook support sleeve is mounted on the outside of hook support frame, is connect by pressing closer screw with holding armature；Connecting rod is logical
It crosses pitman shaft one end to be connected with hook, the other end is connected on hook support sleeve；Quill lower end passes through screw thread and location nut
Connection, and in location nut stepped hole and quill gap setting adjustment ring, stop pin anti-rotation is used afterwards.
As a further improvement of the above technical scheme, above-described a kind of hook applied to control rod drive mechanism
Device, the hook are monodentate hook.
As a further improvement of the above technical scheme, above-described a kind of hook applied to control rod drive mechanism
Device, the hook are bidentate hook.
As a further improvement of the above technical scheme, above-described a kind of hook applied to control rod drive mechanism
Device, the hook are four hook pawls.
A kind of claw device applied to control rod drive mechanism for implementing the utility model, has the advantages that
Adjustment ring is arranged at the casing axial end of claw device and promotion magnetic pole stepped hole in the application, which is carried out
Optimal improvements guarantee the reliability being threadedly coupled, and when lift armature and promotion magnetic pole actuation, impact force can be connected through a screw thread
Quill is passed to, the case where impact force passes to quill by positioning pin is avoided, promotion air gap is ensure that, drives control rod
The operation of motivation structure is more reliable, safety.
Detailed description of the invention
Accompanying drawings and embodiments will be combined, and the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of the claw device applied to control rod drive mechanism of the utility model；
Fig. 2 is that the utility model is a kind of applied to the claw device of control rod drive mechanism and the comparison diagram of the prior art.
In figure: 1, promoting magnetic pole.2, stop pin 3, promotion spring 4, lift armature 5, lock-screw 6, mobile spring
7, hook axis 8, hook 9, connecting rod 10, holding magnetic pole 11, holding spring 12, holding armature 13, spring pocket 14, hook
Support frame 15, guide plate pin 16, guide plate 17, stop pin 18, adjustment ring 19, location nut 20, pitman shaft 21, hook
Pawl support sleeve 22, transmitting spring 23, adjustment gasket 24, antifreeze plate 25, buffer shaft 26, mobile armature 27, antifreeze plate
28, quill 29, buffering spacer 30, adjustment ring.
Specific embodiment
As shown in Fig.1 and Fig.2, in a kind of embodiment of the claw device applied to control rod drive mechanism of the utility model
In, it promotes magnetic pole 1 and is connected through a screw thread with 28 upper end of quill, and manufacture adjustment ring 30, filling quill 28 and promotion magnetic pole 1
Ladder interporal lacuna fills stop pin 2；Lift armature 4 is connected through a screw thread with buffer shaft 25, and is pressed closer with lock-screw 5, is covered
On quill 28；Equipped with buffering spacer 29 and promotion spring 3 between lift armature 4 and promotion magnetic pole 1；Hook 8 is pacified by hook axis 7
On buffer shaft 25, guide plate is mounted on buffer shaft 25 by guide plate pin；Mobile 26 sets of armature is outside buffer shaft 25
Side is equipped with antifreeze plate 27 and mobile spring 6 between mobile armature 26 and lift armature 4；Connecting rod 9 passes through pitman shaft one end and hook
Pawl 8 is connected, and the other end is connected with mobile armature 26；It keeps magnetic pole 10 to be connected through a screw thread to be connected with quill 28, uses locking screw
It is fixed to clench；12 sets of holding armature on quills 28, antifreeze plate 24 are equipped between holding magnetic pole 10 and keeps spring 11；Hook
21 sets of support sleeve is in 28 outside of quill, and by spring pocket 13 and transmitting spring 22 in 28 upper limit of quill；Guide plate 16
It is connected by guiding board shaft 15 with hook support frame 14, hook is connected by hook axis with hook support frame 14；Hook support sleeve
21 are mounted on 14 outside of hook support frame, are connect by pressing closer screw with holding armature 12；Connecting rod passes through pitman shaft one end and hook
Pawl is connected, and the other end is connected on hook support sleeve 21；28 bottom of quill is connected through a screw thread to be connected with location nut 19
It connects, and manufactures adjustment ring 18 in 19 stepped hole of location nut and 28 gaps, then use 17 anti-rotation of stop pin.
The assembly method of adjustment ring 30 are as follows: it will first promote magnetic pole 1 and the threaded connection of quill 28 tightened, match anti-rotation pin hole,
It measures 28 end face of quill and promotes the gap of magnetic pole 1, manufacture adjustment ring 30；Disassembly promotes magnetic pole 1, and mounting and adjusting ring 30 will
Quill 28 assembles again with magnetic pole 1 is promoted, and fills stop pin 2.Location nut 19 and 28 assembling process of quill and promotion magnetic pole 1
It is connected with quill 28 identical.
In conclusion such as those of ordinary skill is scrutable in the art, described in this specification only originally
One preferred embodiment of utility model, the change or modification that all designs according to the utility model are made all should be practical new at this
In the claims of type.
Claims (6)
1. a kind of claw device applied to control rod drive mechanism, the claw device includes: that shape is that slender type is hollow
The quill of pipe, the main component being assemblied in outside quill: promoted magnetic pole, lift armature, hook, buffer shaft, mobile armature,
Connecting rod keeps magnetic pole, holding armature, location nut and the accessory being used cooperatively with above-mentioned main component；Its feature exists
In the promotion magnetic pole is connected through a screw thread with quill upper end, quill and promotion magnetic pole stepped hole gap setting adjustment
Ring fills stop pin；Quill lower end is connected through a screw thread with location nut, in location nut stepped hole and quill gap setting
Adjustment ring.
2. the claw device according to claim 1 applied to control rod drive mechanism, which is characterized in that the casing
The interstitial structure phase of casing axial end and promotion magnetic pole when the adjustment ring of axis upper end is tightened with promotion magnetic pole and casing axle thread
Match；The adjustment ring of quill lower end is when quill is threadedly coupled close with location nut, with location nut stepped hole and casing
The interstitial structure of axis matches.
3. the claw device according to claim 2 applied to control rod drive mechanism, which is characterized in that the auxiliary
Component include stop pin, promoted spring, lock-screw, mobile spring, hook axis, keep spring, spring pocket, hook support frame,
Guide plate pin, guide plate, pitman shaft, hook support sleeve, transmitting spring, antifreeze plate, buffering spacer；The main component and auxiliary
Help the connection type of component are as follows: lift armature is connected through a screw thread with buffer shaft, and is pressed closer with lock-screw, is covered in quill
On；Equipped with buffering spacer and promotion spring between lift armature and promotion magnetic pole；Hook is mounted on buffer shaft by hook axis, is led
It is mounted on buffer shaft to plate by guide plate pin；Mobile armature covers on the outside of buffer shaft, pacifies between mobile armature and lift armature
Equipped with antifreeze plate and mobile spring；Connecting rod is connected by pitman shaft one end with hook, and the other end is connected with mobile armature；Keep magnetic
Pole is connected through a screw thread to be connected with quill, with lock-screw tightening；Holding armature covers on quill, pacifies between holding magnetic pole
Equipped with antifreeze plate and keep spring；Hook support sleeve covers on the outside of quill, and by spring pocket and transmitting spring in quill
Upper limit；Guide plate is connected by being oriented to board shaft with hook support frame, and hook is connected by hook axis with hook support frame；Hook
Support sleeve is mounted on the outside of hook support frame, is connect by pressing closer screw with holding armature；Connecting rod passes through pitman shaft one end and hook
Pawl is connected, and the other end is connected on hook support sleeve；Quill lower end is connect by screw thread with location nut, and in location nut
Stepped hole and quill gap setting adjustment ring use stop pin anti-rotation afterwards.
4. the claw device according to claim 1-3 applied to control rod drive mechanism, which is characterized in that institute
The hook stated is monodentate hook.
5. the claw device according to claim 1-3 applied to control rod drive mechanism, which is characterized in that institute
The hook stated is bidentate hook.
6. the claw device according to claim 1-3 applied to control rod drive mechanism, which is characterized in that institute
The hook stated is four hook pawls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345298.3U CN208507203U (en) | 2018-03-13 | 2018-03-13 | A kind of claw device applied to control rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345298.3U CN208507203U (en) | 2018-03-13 | 2018-03-13 | A kind of claw device applied to control rod drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507203U true CN208507203U (en) | 2019-02-15 |
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ID=65295206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820345298.3U Active CN208507203U (en) | 2018-03-13 | 2018-03-13 | A kind of claw device applied to control rod drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017795A (en) * | 2020-07-31 | 2020-12-01 | 清华大学 | Spatial layout structure of driving mechanism and built-in control rod driving mechanism |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
-
2018
- 2018-03-13 CN CN201820345298.3U patent/CN208507203U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017795A (en) * | 2020-07-31 | 2020-12-01 | 清华大学 | Spatial layout structure of driving mechanism and built-in control rod driving mechanism |
| CN112017795B (en) * | 2020-07-31 | 2022-10-11 | 清华大学 | Spatial layout structure of driving mechanism and built-in control rod driving mechanism |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
| CN112489837B (en) * | 2020-11-27 | 2024-04-02 | 中广核检测技术有限公司 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
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