CN208514433U - A kind of shielding main pump kingbolt dismantling device - Google Patents
A kind of shielding main pump kingbolt dismantling device Download PDFInfo
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- CN208514433U CN208514433U CN201821036258.7U CN201821036258U CN208514433U CN 208514433 U CN208514433 U CN 208514433U CN 201821036258 U CN201821036258 U CN 201821036258U CN 208514433 U CN208514433 U CN 208514433U
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- kingbolt
- main pump
- shielding main
- shielding
- pump
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Abstract
A kind of shielding main pump kingbolt dismantling device belongs to nuclear power station shielding main pump maintenance technique field.The utility model dismantling device includes supporting element, for being installed on the main flange of shielding main pump；Kingbolt is screwed out upwards from the threaded hole of main pump pump case or is screwed in downwards for being installed below the supporting element by kingbolt turn component；And kingbolt hanging component, for being installed on above the supporting element, the kingbolt suspention export shielding main pump that will screw out or by be screwed into kingbolt suspention import and shield main pump.The utility model can be before shielding main pump installation carriage reaches designated position, realize the function of shielding main pump kingbolt dismounting, the process time that large material is removed, shielding main pump installation carriage assembles has been saved, has shortened main pump and overhauls critical path time, reduce maintenance personal's total radiation dose.
Description
Technical field
The utility model relates to nuclear power station shielding main pump maintenance technique fields more particularly to a kind of shielding main pump kingbolt to tear open
Holding tool.
Background technique
Nuclear power station is after the long period runs, protected type reactor coolant pump (hereinafter referred to as: shielding main pump) thrust
A possibility that components such as bearing and housing go wrong incrementally increases, and plans main pump replacement and maintenance under radioactive environment in advance
Technique and specific purpose tool exploitation with regard to necessary.Shielding main pump pump case is welded on steam generator bottom, and shielding main pump is logical
It crosses 24 kingbolts to be inversely installed on steam generator bottom pump case, if shielding main pump need to be dismantled, need to first remove shielding main pump
Kingbolt.Pass through the connection type and shielding main pump kingbolt dismounting to evaporator compartment field condition, shielding main pump and pump case
The comprehensive analysis of technique, the factor for restricting shielding main pump kingbolt disassembly are mainly as follows: 1, western room design shielding main pump kingbolt
Remove technique be based on this in place prerequisite of shielding main pump installation carriage, but shield main pump installation carriage need to evaporator every
Between large material remove after can just be hoisted to steam generator chamber so that the dismounting work of shielding main pump kingbolt will
It restricts main pump and overhauls critical path, greatly increase critical path time, improve maintenance personal's total radiation dose；2, in the phase in longevity repeatedly
Kingbolt dismounting work will be related to by executing shielding main pump kingbolt elongation inspection, but by shielding main pump installation carriage dismounting master
Bolt need to remove large material in evaporator compartment.
It can be dismounted in the large material of evaporator compartment therefore, it is necessary to utility model one kind and shield main pump installation carriage not
Up to before evaporator compartment designated position, the specific purpose tool of kingbolt is dismounted.
Utility model content
In view of the problems of the existing technology, propose a kind of replace in maintenance process in shielding main pump makes the utility model
With and do not depend on the shielding main pump kingbolt dismantling device of main pump installation carriage.
The utility model has the technical scheme that
The utility model provides a kind of shielding main pump kingbolt dismantling device, comprising:
Supporting element, for being installed on the main flange of shielding main pump；
Kingbolt turn component, for being installed below the supporting element, by kingbolt from the threaded hole of main pump pump case
In upwards screw out or downwards screw in；And
Kingbolt hanging component, for being installed on above the supporting element, the kingbolt suspention export shielding that will be screwed out
Main pump or by be screwed into kingbolt suspention import shielding main pump.
Preferably, the supporting element is C-type clamp mechanism.
Preferably, the kingbolt turn component includes sleeve, driving mechanism, follower, rotational handle: described turn
Fixed handle is connected to the lower section of the driving mechanism, and the sleeve connection is in the top of the driving mechanism, the follower
It is sequentially connected with the driving mechanism, the rotational handle drives driving mechanism to drive the sleeve by kingbolt when moving up and down
It screws out, screw in from the threaded hole of main pump pump case.
Preferably, the driving mechanism includes a driving gear, a driving shaft, the driving gear is sheathed on institute
It states outside driving shaft, the driving shaft is connect with the rotational handle, to drive driving shaft and driving gear to rotate by rotational handle；
The follower includes that be made of a driven gear, a driven shaft, two thrust bearings two groups are driven
Wheel group, the driven gear in every group of driven wheel group are sheathed on outside the driven shaft, and two thrust bearings are located at described
Driven gear both ends and be sheathed on outside the driven shaft；Two groups of driven wheel groups are divided into the driving shaft two sides, driven gear with
Driving gear engagement.
Preferably, the kingbolt hanging component include for lift the suspender of kingbolt, turbine and worm mechanism and
One end connects suspender and other end coiling in the wirerope of turbine and worm mechanism；The rotation of turbine and worm mechanism drives wirerope to receive
Hold together, be unfolded, by suspender in midair kingbolt to be suspended to export from pump case, imported.
Preferably, the suspender includes:
Lifting lug, for precession, the threaded hole of back-out main pump pump case；
Swivel bolt, for installing into the lifting threaded hole on kingbolt top；And
Pulley；
The wirerope of the turbine and worm mechanism is installed by the pulley being set in the lifting lug to the swivel spiral shell
Bolt.
The utility model has the following beneficial effects:
A kind of shielding main pump kingbolt dismantling device of the utility model can reach specific bit in shielding main pump installation carriage
Before setting, the function of shielding main pump kingbolt dismounting is realized, saved the work that large material is removed, shields the assembling of main pump installation carriage
The skill time shortens main pump and overhauls critical path time, reduces maintenance personal's total radiation dose.
Detailed description of the invention
Fig. 1 is that the structure that a kind of shielding main pump kingbolt dismantling device of the utility model is installed on shielding main pump ontology is shown
It is intended to；
Fig. 2 is the structural schematic diagram of kingbolt turn component in Fig. 1；
Fig. 3 is the structural schematic diagram that Fig. 2 kingbolt turn component is mounted on shielding main pump ontology；
Fig. 4 is the structural schematic diagram of kingbolt hanging component in Fig. 1；
Fig. 5 is the structural schematic diagram that Fig. 4 kingbolt hanging component is mounted on shielding main pump ontology.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Currently, shielding main pump is mainly made of the hydraulic parts such as main pump shell, impeller of pump and pump motor.Wherein, main pump
Case weld is connect with pump motor by bolt, is collectively referred to as in the lower head of steam generator bottom, the hydraulic parts such as impeller of pump
Detachable member.Detachable member is connect by kingbolt with main pump shell.And kingbolt removes technique restriction in main pump at present
Overhaul critical path, and using trolley dismounting kingbolt need first to remove the large material of evaporator compartment, then dismount path length and
It is time-consuming, for this purpose, the utility model proposes a kind of shielding main pump kingbolt dismantling device and assembly and disassembly methods.
Such as Fig. 1, a kind of shielding main pump kingbolt dismantling device of the utility model includes supporting element 1, kingbolt turn component B
With kingbolt hanging component A.The supporting element 1 be installed on shielding main pump 4 main flange on, the kingbolt turn component B and
The kingbolt hanging component A is respectively arranged in the following above and of the supporting element 1.In this way, when needing to remove kingbolt,
Kingbolt turn component B screws out kingbolt upwards from the threaded hole of main pump pump case, and kingbolt hanging component is by the master of back-out
Bolt suspends in midair and exports shielding main pump, i.e. completion kingbolt is removed；When needing to install kingbolt, kingbolt hanging component A will
To be screwed into kingbolt suspention import shielding main pump, especially shielding main pump main pump pump case threaded hole, then kingbolt revolve
Dynamic component B screws in downwards kingbolt, in precession main pump pump case, i.e. completion kingbolt installation.
The supporting element 1 uses general C-type clamp mechanism, which acts on the main flange of main pump, and material is aluminium alloy,
The weight of alleviator, in order to carry and operate.
Such as Fig. 2,3, the kingbolt turn component B includes sleeve 21, driving mechanism 22, follower 23, rotational handle
24.The rotational handle 24 is connected to the lower section of the driving mechanism 22, and the sleeve 21 is connected to the driving mechanism 22
Top, the follower 23 are sequentially connected with the driving mechanism 22, and the rotational handle 24 drives about 22 driving mechanism
The sleeve 21 is driven to screw out kingbolt from the threaded hole of main pump pump case, screw in when movement.
Wherein, the sleeve 21 is interior Hexagonal jacket, is used for turn kingbolt.The driving mechanism 22 includes an active
221, driving shafts 222 of gear, the wheel of driving tooth 221 is sheathed on outside the driving shaft 222, under the driving shaft 222
The connection of rotational handle 24 described in portion, such rotational handle 24 can drive driving shaft 222 and driving gear 221 to rotate when rotating；Institute
The 222 top assembly sleeve 21 for stating driving shaft, actively walk around it is dynamic under, band moving sleeve rotates, and sleeve can exert a force the main spiral shell of turn
Bolt.The follower 23 includes two be made of a thrust bearing 233 of driven shaft 232, two of driven gear 231, one
Driven wheel group is organized, the driven gear 231 in every group of driven wheel group is sheathed on outside the driven shaft 232, two thrust bearings
233 are located at 231 both ends of driven gear and are sheathed on outside the driven shaft 232.Two groups of driven wheel groups are divided into described
222 two sides of driving shaft, driven gear 231 are engaged with driving gear 221.Driven shaft 232 is hollow shaft, has screw thread inside axis,
It is realized and is moved up and down by axis internal whorl, entire gear-box is hung to supporting element 1.
As Fig. 4,5, the kingbolt hanging component A include for lift the suspender of kingbolt, turbine and worm mechanism 32, with
And one end connects suspender and other end coiling in the wirerope 33 of turbine and worm mechanism.The rotation of turbine and worm mechanism 32 drives steel wire
Rope 33 collapses, is unfolded, by suspender in midair kingbolt to be suspended to export from pump case, imported.
Wherein, the suspender includes lifting lug 311, swivel bolt 312, pulley 313.The lifting lug top has spiral shell
Line plays the role of suspension centre for precession, the threaded hole of back-out main pump pump case.Pulley 313 is installed in 311 lower part of lifting lug, is used for
The guiding and sliding of wirerope 33.Swivel bolt 312, for installing into the lifting threaded hole on kingbolt top.It is described
The wirerope 33 of turbine and worm mechanism is installed by the pulley 313 being set in the lifting lug 311 to the swivel bolt
312。
For the worm gear mechanism 32 using the mechanism of autonomous Design, being able to achieve will be on 33 inventory to axis of wirerope.Figure
In visible turbine and worm mechanism 32 it is main using worm shaft come disk line or unwrapping wire.Kingbolt will be hung once screwing out from main pump pump case
In threaded hole in ear 311 precession to main pump pump case, by swivel bolt precession kingbolt screw top hole, pass through turbine
Pulley on worm mechanism 32 and lifting lug 311 realizes the decline of kingbolt.
The utility model carries out kingbolt dismounting using above-mentioned dismantling device, and method includes:
Supporting element is installed on the main flange of shielding main pump by step S01；
Kingbolt turn component is installed below the supporting element by step S02, by kingbolt from the spiral shell of main pump pump case
It is screwed out upwards in pit；
Kingbolt hanging component is installed on above the supporting element by step S03, the kingbolt suspention export that will be screwed out
Shield main pump.
Specifically, method includes:
Supporting element is installed on the main flange of shielding main pump by step S11；
Such as, C-type clamp mechanism is installed on the main flange of shielding main pump.
Kingbolt turn component is installed below the supporting element by step S12, and rotation rotational handle drives driving mechanism
It moves upwards, and the sleeve is driven to screw out kingbolt from the threaded hole of main pump pump case；
Step S13 after kingbolt screws out, kingbolt hanging component is installed on above the supporting element, revolving wormgear snail
Linkage drives wirerope to collapse by suspender in midair kingbolt to be suspended to export from pump case.
C-type clamp mechanism is installed to main flange, and kingbolt turn component is mounted in C-type clamp, and rotational handle drives master
Gear and spindle rotation drive the sleeve rotating on driving shaft therewith, kingbolt are screwed out from the threaded hole of main pump pump case.
After kingbolt screws out, by the threaded hole of lifting lug precession to main pump pump case, swivel bolt is installed to main spiral shell
In the lifting threaded hole on bolt top, the wirerope in turbine and worm mechanism is installed by the pulley on lifting lug to universal lifting lug spiral shell
On bolt, with the hexagonal square toes on ratchet spanner rotary worm axis, to transferring kingbolt to ground.
The utility model carries out kingbolt installation using above-mentioned dismantling device, and method includes:
Supporting element is installed on the main flange of shielding main pump by step S01 '；
Kingbolt hanging component is installed on above the supporting element by step S02 ', by be screwed into kingbolt suspend in midair
Import shielding main pump；
Kingbolt turn component is installed below the supporting element by step S03 ', by kingbolt from main pump pump case
It is screwed in downwards in threaded hole.
Specifically, which comprises
Supporting element is installed on the main flange of shielding main pump by step S11 '；
Kingbolt hanging component is installed on above the supporting element, revolving wormgear worm mechanism by step S12 ', is driven
Wirerope expansion with by suspender by be screwed into kingbolt suspention import shielding main pump；
Kingbolt turn component is installed below the supporting element by step S13 ', and rotation rotational handle drives mover
Structure moves downward, and the sleeve is driven to screw in kingbolt from the threaded hole of main pump pump case.
C-type clamp mechanism is installed to main flange, by the threaded hole of lifting lug precession to main pump pump case, by swivel bolt
Installation into the lifting threaded hole on kingbolt top, by the wirerope in turbine and worm mechanism by the pulley on lifting lug install to
On universal ear stud, with the hexagonal square toes on ratchet spanner rotary worm axis, to suspending in midair kingbolt to main pump pump case
In threaded hole.
Later, kingbolt turn component being mounted in C-type clamp, rotational handle drives master gear and spindle rotation, with
Drive driving shaft on sleeve rotating, kingbolt is screwed in from the threaded hole of main pump pump case.
It should be understood by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only used as
It illustrates and is not intended to limit the utility model.The purpose of this utility model completely effectively realizes.The function of the utility model
And structural principle shows and illustrates in embodiment, under without departing from the principle, the embodiments of the present invention can
To have any deformation or modification.
Claims (7)
1. a kind of shielding main pump kingbolt dismantling device characterized by comprising
Supporting element, for being installed on the main flange of shielding main pump；
Kingbolt turn component, for being installed below the supporting element, by kingbolt from the threaded hole of main pump pump case to
Upper back-out；And
Kingbolt hanging component, for being installed on above the supporting element, the kingbolt suspention export shielding main pump that will be screwed out.
2. a kind of shielding main pump kingbolt dismantling device according to claim 1, which is characterized in that the supporting element is C
Type clamp mechanism.
3. a kind of shielding main pump kingbolt dismantling device according to claim 1, which is characterized in that the kingbolt turn
Component includes sleeve, driving mechanism, follower, rotational handle: the rotational handle is connected to the lower section of the driving mechanism,
The sleeve connection is sequentially connected in the top of the driving mechanism, the follower and the driving mechanism, the rotation
Handle drives driving mechanism to drive the sleeve to screw out kingbolt from the threaded hole of main pump pump case, screw in when moving up and down.
4. a kind of shielding main pump kingbolt dismantling device according to claim 3, which is characterized in that the driving mechanism packet
A driving gear, a driving shaft are included, the driving gear is sheathed on outside the driving shaft, the driving shaft and the rotation
Handle connection, to drive driving shaft and driving gear to rotate by rotational handle；
The follower includes two groups of driven wheel groups being made of a driven gear, a driven shaft, two thrust bearings,
The driven gear in every group of driven wheel group is sheathed on outside the driven shaft, and two thrust bearings are located at the driven tooth
It takes turns both ends and is sheathed on outside the driven shaft；Two groups of driven wheel groups are divided into the driving shaft two sides, driven gear and driving tooth
Wheel engagement.
5. a kind of shielding main pump kingbolt dismantling device according to claim 1, which is characterized in that the kingbolt lifting
Component includes for lifting the suspender of kingbolt, turbine and worm mechanism and one end connection suspender and other end coiling in turbine
The wirerope of worm mechanism；The rotation of turbine and worm mechanism drives wirerope to collapse, expansion, with by suspender by kingbolt from pump case
Middle suspention export imports.
6. a kind of shielding main pump kingbolt dismantling device according to claim 5, which is characterized in that the suspender includes:
Lifting lug, for precession, the threaded hole of back-out main pump pump case；
Universal ear stud, for installing into the lifting threaded hole on kingbolt top；And
Pulley；
The wirerope of the turbine and worm mechanism is installed by the pulley being set in the lifting lug to the universal ear stud.
7. a kind of shielding main pump kingbolt dismantling device according to claim 6, which is characterized in that the lifting lug top is set
There is the screw thread of energy precession, the threaded hole for screwing out main pump pump case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036258.7U CN208514433U (en) | 2018-07-03 | 2018-07-03 | A kind of shielding main pump kingbolt dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036258.7U CN208514433U (en) | 2018-07-03 | 2018-07-03 | A kind of shielding main pump kingbolt dismantling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208514433U true CN208514433U (en) | 2019-02-19 |
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ID=65337026
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821036258.7U Active CN208514433U (en) | 2018-07-03 | 2018-07-03 | A kind of shielding main pump kingbolt dismantling device |
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| CN (1) | CN208514433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963486A (en) * | 2020-06-09 | 2020-11-20 | 三门核电有限公司 | Large-scale shielding main pump integral dismounting device and dismounting process in radioactive environment |
-
2018
- 2018-07-03 CN CN201821036258.7U patent/CN208514433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963486A (en) * | 2020-06-09 | 2020-11-20 | 三门核电有限公司 | Large-scale shielding main pump integral dismounting device and dismounting process in radioactive environment |
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