CN207256115U - A kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling - Google Patents
A kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling Download PDFInfo
- Publication number
- CN207256115U CN207256115U CN201720842363.9U CN201720842363U CN207256115U CN 207256115 U CN207256115 U CN 207256115U CN 201720842363 U CN201720842363 U CN 201720842363U CN 207256115 U CN207256115 U CN 207256115U
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- China
- Prior art keywords
- torsion bar
- power plant
- nuclear power
- holding card
- coolant pump
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Abstract
The utility model belongs to nuclear power plant reactor coolant pump technical field, a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling is specifically disclosed, the device includes holding card component, shadoof and hoisting nut, several shadoofs are inserted in holding card component lower end, each shadoof bottom is fastened by hoisting nut and holding card component, and the holding card component is made of holding card and fastening bolt.The utility model is simple and reliable for structure, and steady lifting can be realized in disassembly process and is reliably fixed, effectively evades the potential risk that personnel and equipment safety are threatened in maintenance process.
Description
Technical field
The utility model belongs to nuclear power plant reactor coolant pump technical field, and in particular to a kind of nuclear power plant reactor is cold
But agent pump torsion bar detaching device for coupling.
Background technology
More nuclear reactor coolant pumps are configured with nuclear reactor plant, which reloads greatly in each unit
In repairing, comprehensive disassembling overhaul need to be carried out to 1 therein, to remaining several progress partial teardown overhaul.In the coolant pump
The incipient stage is overhauled, is both needed to disassemble torsion bar shaft coupling and be fastened on motor, reactor cooling is together hung with motor
Agent pumps pump house, to carry out related maintenance activity to the cooling agent pump housing.
The torsion bar shaft coupling of the coolant pump is cylinder, and top is machined with feather key, with the feather key phase below rotor
Coordinate, lower part is designed for T-shaped round platform, uniformly distributed some bolts hole, for being bolted with the pump housing, drives equipment rotation fortune
OK.The torsion bar shaft coupling is in fixation procedure is dismantled, and due to narrow space, and quality is larger, in fixation procedure is lifted, need to delay
Slowly smoothly operated, avoided there is a phenomenon where bite, while also to ensure the controllability of lifting process, avoid torsion bar from joining
Axis device occurs to slide phenomenon suddenly, and major injury is caused to personnel and equipment.
Therefore, steadily lifting and reliable fixed how is carried out to torsion bar shaft coupling, for the personnel in maintenance process and
Equipment safety, is of great significance.
The content of the invention
The purpose of this utility model is to provide a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling, knot
Structure is simple and reliable, and steady lifting can be realized in disassembly process and is reliably fixed, effectively evades and people is threatened in maintenance process
Member and the potential risk of equipment safety.
Realize the technical solution of the utility model aim：A kind of nuclear power plant reactor coolant pump torsion bar dismounting coupling dress
Put, which includes holding card component, shadoof and hoisting nut, and two shadoofs are inserted in holding card component lower end, each shadoof bottom
Fastened by hoisting nut and holding card component.
The holding card component is made of two holding cards and two fastening bolts, and two holding cards are passed through two fastening bolts
The holding card that is composed of a fixed connection component.
Integrally there is the hollow cylinder of bulge loop after two holding cards combination in bottom.
The holding card bottom has boss, and holding card bottom boss side has the auricle with through hole B, holding card bottom boss
Threaded hole C is provided with opposite side radial end face, through hole D is respectively provided with the axial end face of holding card lower end.
The shadoof bottom is inserted in the through hole D at the axial end face of holding card lower end.
The shadoof is screw thread through rod.
The shadoof top is equipped with limited step A.
The advantageous effects of the utility model are：It is simple in structure, it can be achieved that during torsion bar dismounting coupling
It is steady to be lifted and reliably fixed, avoid that feather key bite occurs in lifting process or torsion bar shaft coupling slides, personnel equipment is made
Into the danger of damage.
Brief description of the drawings
Fig. 1 is a kind of making for nuclear power plant reactor coolant pump torsion bar detaching device for coupling provided by the utility model
Use schematic diagram；
Fig. 2 is a kind of dress of nuclear power plant reactor coolant pump torsion bar detaching device for coupling provided by the utility model
With schematic diagram；
Fig. 3 is a kind of embracing for nuclear power plant reactor coolant pump torsion bar detaching device for coupling provided by the utility model
Card schematic three dimensional views；
Fig. 4 is a kind of nuclear power plant reactor coolant pump torsion bar dismounting coupling square law device provided by the utility model
Holding card two-dimensional representation；
Fig. 5 is the schematic diagram of torsion bar shaft coupling.
In figure：1. torsion bar shaft coupling, 2. holding cards, 3. shadoofs, 4. fastening bolts, 4. hoisting nuts, 5. hoisting nuts.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1,2,3, 4, a kind of nuclear power plant reactor coolant pump torsion bar shaft coupling provided by the utility model
Provision for disengagement, the device include holding card component, shadoof 3 and hoisting nut 5.Holding card component is by 2 holding cards, 2,2 fastening bolts 4
Composition, 2 bottom of holding card have boss, and 2 bottom boss side of holding card has the auricle with through hole B, 2 bottom boss opposite side of holding card
A threaded hole C is provided with radial end face；2 holding cards 2 integrally have the hollow cylinder of bulge loop in bottom after combining, pass through figure
2 fastening bolts 4 shown in 2 can realize two assembling fastenings of holding card 2；Respectively opened at Fig. 2,2 lower end axial end face of each holding card shown in 3
There is a through hole D, 2 shadoofs 3 shown in Fig. 2 can be made from top to bottom each to be inserted into 1 through hole D.Shadoof 3 shown in Fig. 2 is spiral shell
Line through rod, shadoof 3 are equipped with limited step A with motor housing fixing end.Holding card module inner diameter is slightly larger than torsion bar shaft coupling 1
On-fixed end diameter.Each 3 bottom of shadoof is equipped with 1 nut 5, and nut 5 fastens shadoof 3 and holding card 2.
As shown in Fig. 1,2,3,4,5, a kind of nuclear power plant reactor coolant pump torsion bar shaft coupling provided by the utility model
Device method for dismounting, this method comprises the following steps：
2 shadoofs 3, is each screwed in the motor housing positioned at the top of torsion bar shaft coupling 1 by step 1 equipped with limited step A ends
1 threaded hole in, and pretensions are carried out to 2 shadoofs 3 using instrument.
Instrument in step 1 is tools for bolts ' pretension instrument.
23 other ends of shadoof, be inserted into the lower end axial end face through hole D of 2 holding cards 2 by step 2 respectively, and to embrace
Card 2 is respectively positioned on torsion bar shaft coupling 1 on the downside of shaft shoulder E.
Step 3, carry 2 holding cards 2 to upper end and be slightly below shaft shoulder E lower end surfaces on torsion bar shaft coupling 1, uses fastening
2 holding cards 2 are assembled and fastened by bolt 4.
Step 4, screw in 2 nuts 5 by 13 lower end of shadoof respectively, until nut 5 touches 2 lower end surface of holding card；
Step 5, using instrument at the same time to 2 hoisting nuts 5 uniformly slowly fastening, remain each orientation lifting capacity
Identical, until torsion bar shaft coupling 1 is touched above rotor, shaft coupling is spacing, can stop, you can realizing that torsion bar shaft coupling 1 is pacified
It is complete to be lifted and effectively fixed.
Instrument in step 5 is bolt-tightening tool.
The utility model is explained in detail above in conjunction with drawings and examples, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
On the premise of various changes can be made.The content not being described in detail in the utility model can use the prior art.
Claims (8)
- A kind of 1. nuclear power plant reactor coolant pump torsion bar detaching device for coupling, it is characterised in that：The device includes holding card group Part, shadoof (3) and hoisting nut (5), two shadoofs (3) are inserted in holding card component lower end, and each shadoof (3) bottom passes through lifting Nut (5) is fastened with holding card component；The holding card component is made of two holding cards (2) and two fastening bolts (4), and two holding cards (2) are tight by two Fixing bolt (4) is composed of a fixed connection holding card component；Integrally there is the hollow cylinder of bulge loop after two holding cards (2) combination in bottom.
- 2. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 1, its feature exist In：Described holding card (2) bottom has boss.
- 3. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 2, its feature exist In：Described holding card (2) the bottom boss side has the auricle with through hole B.
- 4. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 3, its feature exist In：Threaded hole C is provided with described holding card (2) the bottom boss opposite side radial end face.
- 5. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 4, its feature exist In：Through hole D is respectively provided with holding card (2) lower end axial end face.
- 6. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 5, its feature exist In：Described shadoof (3) bottom is inserted in the through hole D at the axial end face of holding card (2) lower end.
- 7. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 6, its feature exist In：The shadoof (3) is screw thread through rod.
- 8. a kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling according to claim 7, its feature exist In：Described shadoof (3) top is equipped with limited step A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720842363.9U CN207256115U (en) | 2017-07-12 | 2017-07-12 | A kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720842363.9U CN207256115U (en) | 2017-07-12 | 2017-07-12 | A kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207256115U true CN207256115U (en) | 2018-04-20 |
Family
ID=61926509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720842363.9U Active CN207256115U (en) | 2017-07-12 | 2017-07-12 | A kind of nuclear power plant reactor coolant pump torsion bar detaching device for coupling |
Country Status (1)
| Country | Link |
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| CN (1) | CN207256115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283355A (en) * | 2017-07-12 | 2017-10-24 | 江苏核电有限公司 | A kind of nuclear power plant reactor cooling medium pump torsion bar detaching device for coupling and method |
| CN114033667A (en) * | 2021-10-19 | 2022-02-11 | 中国核电工程有限公司 | Device for preventing pump rotor from running |
-
2017
- 2017-07-12 CN CN201720842363.9U patent/CN207256115U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283355A (en) * | 2017-07-12 | 2017-10-24 | 江苏核电有限公司 | A kind of nuclear power plant reactor cooling medium pump torsion bar detaching device for coupling and method |
| CN114033667A (en) * | 2021-10-19 | 2022-02-11 | 中国核电工程有限公司 | Device for preventing pump rotor from running |
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