CN208334283U - A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus - Google Patents
A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus Download PDFInfo
- Publication number
- CN208334283U CN208334283U CN201820615626.7U CN201820615626U CN208334283U CN 208334283 U CN208334283 U CN 208334283U CN 201820615626 U CN201820615626 U CN 201820615626U CN 208334283 U CN208334283 U CN 208334283U
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- Prior art keywords
- universal joint
- voussoir
- probe
- pressure vessel
- reactor pressure
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- 239000000523 sample Substances 0.000 title claims abstract description 58
- 238000007689 inspection Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 230000014759 maintenance of location Effects 0.000 claims abstract description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920005372 Plexiglas® Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Abstract
The utility model discloses a kind of probe mechanisms of reactor pressure vessel kingbolt ultrasonic inspection apparatus, including cotter mechanism, probe base, wire press box, cardan universal joint component and scanner link block, wherein, the cotter mechanism includes voussoir, 2 detection probes, 3 voussoir friction columns, cable retention clip, 5 voussoir support shafts and 5 springs；The cardan universal joint component includes the first front and back universal joint, the second front and back universal joint, left and right universal joint and universal connection section.The utility model is intended to provide a kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus, can reduce the wear rate of ultrasonic probe, reduces check cost expense；Reasonable probe holder is devised simultaneously, can reduce surface contamination risk caused by personnel's manual compression is popped one's head in；Multiple degrees of freedom universal joint is devised, the defective coupling as caused by the offset of screw rod centrad is able to solve.
Description
Technical field
The utility model is specifically related to a kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus.
Background technique
Nuclear power plant's reactor pressure vessel kingbolt is the securing member between reactor pressure vessel cylinder and top cover,
Radioactive substance is excessive to play an important role to preventing in reactor, for a long time the work under high temperature, high pressure, high radioactivity environment
Make, is easy to stroke fatigue damage, is important stress easily worn part.To ensure that npp safety is reliably run, ASME specification
Regulation, which is reloaded in kingbolt manufacturing process with power plant, need to carry out full volumetric inspection to it when repairing.Existing nuclear power plant reactor
Pressure vessel kingbolt ultrasonic inspection probe frame, to control probe holder arrival target position need to adjust repeatedly axial posture
It is whole, and have very high requirement to screw rod centrad, excessive adjustment causes sport efficiency low, increases equipment failure rate and mistake
Evolutionary operator probability reduces motion control efficiency and reliability, and the deflection of probe holder is easy to cause defective coupling, so that probe be made to believe
It number is affected, influences the integrality of data.
In fabrication stage (when "dead" pollution), manual detection mode is generally used, but detection has weight manually
Multiple precision is not high, detection efficiency is low, the disadvantages of being easy to miss inspection.As the promotion of detection reliability requirement, standard requirements are all the more tight
In the case where lattice, automatic detection is gradually instead of manual detection, the shortcomings that not only overcoming manual detection, have high reliablity,
High sensitivity, it is reproducible the advantages that, while it is time saving and energy saving, detection efficiency is high, and reduce the irradiated wind of manual testing staff
Danger.Kingbolt inner hole hole wall is relatively rough, and coupling instabilty, the probe deterioration for resulting in probe and detection faces are very fast, and
It pops one's head in and there is variation that is eccentric and causing head angle in bolt-center hole, to influence to detect the stability of signal, repeat
Property, it is also easy to missing inspection.
Utility model content
The purpose of this utility model is to provide a kind of probe machines of reactor pressure vessel kingbolt ultrasonic inspection apparatus
Structure can reduce the wear rate of ultrasonic probe, reduce check cost expense；Reasonable probe holder is devised simultaneously, can reduce
Surface contamination risk caused by personnel's manual compression is popped one's head in；Multiple degrees of freedom universal joint is devised, is able to solve due to screw rod center
Defective coupling caused by degree offset.
To achieve the goals above, the utility model uses following technical scheme:
A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus, including cotter mechanism, probe base,
Wire press box, cardan universal joint component and scanner link block, wherein
The cotter mechanism includes voussoir, 2 detection probes, 3 voussoir friction columns, cable retention clip, 5 voussoir supports
Axis and 5 springs；
The cardan universal joint component includes the first front and back universal joint, the second front and back universal joint, left and right universal joint and 2 universal companies
Connect section；
Installation detection probe, voussoir friction column and cable retention clip in the voussoir, and be fixed on by voussoir support shaft
The lower part of the probe base；
Spring is set between the probe base and voussoir, the spring is coaxially pierced respectively in the voussoir support shaft；
Wire press box is installed in the middle part of the probe base, top is equipped with cardan universal joint component；
First front and back universal joint, the second front and back universal joint and left and right universal joint pass through universal connection section connection；
The scanner link block is fixed on the universal joint of first front and back.
Further, the voussoir is plexiglass block.
Compared with prior art, the utility model has the advantage that
1. devising dedicated voussoir, two detection probes can be installed in voussoir simultaneously, and voussoir friction is housed in voussoir
Column reduces the wear rate of voussoir, improves the wearability of probe, reduces use cost and improve service life.
2. guaranteeing good and suitably entering surplus, the step of manual compression probe holder enters bolt hole is eliminated, is improved
The compactness of probe and detection faces.
3. being provided with the opposite detection probe of both direction, requirement of the standard criterion to detection direction is not only met, together
When reduce examine end blind area range, improve check efficiency improve, reduce human-equation error probability.
4. improve work quality makes to couple more stable, user to the integrated leading edge device of dedicated probe designs
Just.
5. the hollow bolt ultrasonic inspection that can be used for currently being widely used；The ultrasonic inspection of small diameter pipeline.
6. using multivariant universal joint connection wire rod, increase position surplus, more efficiently, fast, improves and check surely
It is qualitative and shorten the review time.
7. improving nuclear power plant reactor pressure vessel head bolt detects movable efficiency, safety, reliability, steady
It is qualitative.
8. reasonable in design, there is smooth body structure surface, avoid that there are different in bolt hole during the inspection process
Object scratches tested bolt.
9. in detection process being carried out according to the orderly track planned, the execution of whole detection process is improved
Efficiency fast and accurately controls probe holder by the kinetic energy of basic machine and reaches target location coordinate, and defect is determined in raising
Position precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the internal structure chart of the utility model.
In figure: 1, cotter mechanism；2, probe base；3, wire press box；4, cardan universal joint component；5, scanner link block；101,
Voussoir；102, detection probe；103, voussoir friction column；104, cable retention clip；105, voussoir support shaft；106, spring；401,
First front and back universal joint；402, the second front and back universal joint；403, left and right universal joint；404, universal connection section.
Specific embodiment
Further describe the utility model combined with specific embodiments below, but examples are merely exemplary, it is not right
The scope of the utility model constitutes any restrictions.It will be understood by those skilled in the art that without departing from the utility model
Under spirit and scope can details to technical solutions of the utility model and form modify or replace, but these modifications and replace
It changes and each falls in the protection scope of the utility model.
As shown in Figs. 1-2, a kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus, including voussoir machine
Structure 1, probe base 2, wire press box 3, cardan universal joint component 4 and scanner link block 5, wherein the cotter mechanism 1 includes voussoir
101,104,52 detection probes, 102,3 voussoir friction columns 103, cable retention clip voussoir support shaft 105 and 5 springs
106；The cardan universal joint component 4 includes the first front and back universal joint 401, the second front and back universal joint 402, left and right universal joint 403 and 2
Universal connection section 404；Installation detection probe 102, voussoir friction column 103 and cable retention clip 104 in the voussoir 101, and lead to
Cross the lower part that voussoir support shaft 105 is fixed on the probe base 2；Spring 106 is set between the probe base 2 and voussoir 101,
The spring 106 is coaxially pierced respectively in the voussoir support shaft 105；Wire press box 3 is installed in the middle part of the probe base 2,
Top is equipped with cardan universal joint component 4；First front and back universal joint 401, the second front and back universal joint 402 and left and right universal joint 403
Pass through 404 connection of universal connection section；The scanner link block 5 is fixed on first front and back universal joint 401；The voussoir
101 be plexiglass block.
Working principle is as follows:
Two detection probes 102 are mounted in voussoir 101 respectively, the angle on voussoir 101 required by examining adds
Probe after combining is fixed on probe base 2 by voussoir support shaft 105 by the probe mounting holes of work appropriate depth and angle
On, and coaxially pierce spring 106 in each voussoir support shaft 105, make probe in radial retractable, with guarantee probe with
Good coupling between examined workpiece；It connects cable on probe to be kept fixed by cable retention clip 104, and can will be extra
Cable is fixedly placed in wire press box 3, and the cable other end is axially drawn and is connected in Ultrasound Instrument；First front and back universal joint
401, the second front and back universal joint 402 connects 404 connection of section by universal joint with left and right universal joint 403, is connected to probe base together
On seat 2, the card plug and bias popped one's head in detection hole can be avoided by cardan universal joint component 4, connect on the first front and back universal joint 401
It is connected to scanner link block 5, is connect by scanner link block 5 with kingbolt ultrasonic inspection apparatus, to realize probe mechanism
It is detected in kingbolt hole along motion profile.Meanwhile 3 voussoir friction columns 103 are mounted on voussoir 101, are reduced and are checked
The friction of motion bring of voussoir and detection hole inner wall is worn in the process.
Claims (2)
1. a kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus, which is characterized in that including cotter mechanism
(1), probe base (2), wire press box (3), cardan universal joint component (4) and scanner link block (5), wherein
The cotter mechanism (1) includes that voussoir (101), 2 detection probes (102), 3 voussoir friction columns (103), cables are fixed
Press from both sides (104), 5 voussoir support shafts (105) and 5 springs (106)；
The cardan universal joint component (4) includes the first front and back universal joint (401), the second front and back universal joint (402), left and right universal joint
(403) and 2 universal connections save (404)；
Installation detection probe (102), voussoir friction column (103) and cable retention clip (104) in the voussoir (101), and pass through
Voussoir support shaft (105) is fixed on the lower part of the probe base (2)；
It is set spring (106) between the probe base (2) and voussoir (101), the spring (106) coaxially pierces described respectively
In voussoir support shaft (105)；
It is equipped with wire press box (3) in the middle part of the probe base (2), top is equipped with cardan universal joint component (4)；
First front and back universal joint (401), the second front and back universal joint (402) and left and right universal joint (403) pass through universal connection
Save (404) connection；
The scanner link block (5) is fixed on first front and back universal joint (401).
2. a kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus according to claim 1, special
Sign is that the voussoir (101) is plexiglass block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615626.7U CN208334283U (en) | 2018-04-27 | 2018-04-27 | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615626.7U CN208334283U (en) | 2018-04-27 | 2018-04-27 | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208334283U true CN208334283U (en) | 2019-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820615626.7U Expired - Fee Related CN208334283U (en) | 2018-04-27 | 2018-04-27 | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus |
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| Country | Link |
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| CN (1) | CN208334283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030635A (en) * | 2018-04-27 | 2018-12-18 | 中广核检测技术有限公司 | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus |
-
2018
- 2018-04-27 CN CN201820615626.7U patent/CN208334283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030635A (en) * | 2018-04-27 | 2018-12-18 | 中广核检测技术有限公司 | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |