CN105784842B - A kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism - Google Patents

A kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism Download PDF

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Publication number
CN105784842B
CN105784842B CN201610319302.4A CN201610319302A CN105784842B CN 105784842 B CN105784842 B CN 105784842B CN 201610319302 A CN201610319302 A CN 201610319302A CN 105784842 B CN105784842 B CN 105784842B
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China
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main shaft
short
guide sleeve
long guide
range missile
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CN105784842A (en
Inventor
马文军
邹本慧
俞东宝
张力
白金
赵锐
温丰
汤慧
雷金艳
孙浩楠
王剑平
周委梅
郭丞
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China North Nuclear Fuel Co Ltd
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China North Nuclear Fuel Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/26Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/023Solids
    • G01N2291/0234Metals, e.g. steel

Abstract

The present invention provides a kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism.Rotation flaw detection mechanism includes main shaft, conducting slip ring, probe socket, long guide sleeve, short-range missile set;The main shaft inner cavity of main shaft uses multi-chamber structure, including sensing chamber, long guide sleeve inner cavity, short-range missile set inner cavity;5~6 probe sockets are externally connected in the middle part of main shaft;Main shaft one side is externally provided with long guide sleeve, and main shaft opposite side is externally provided with short-range missile set;5~6 conducting slip rings are externally provided in long guide sleeve, each conducting slip ring is correspondingly connected with a probe socket;Synchronous pulley is externally provided in short-range missile set;Water inlet is externally provided in long guide sleeve, water outlet is externally provided in short-range missile set, water enters water inlet by cyclic water tank, and the gap for passing through main shaft and long guide sleeve flows into sensing chamber, and then full of long guide sleeve inner cavity, short-range missile set inner cavity.The present invention can realize the ultrasound detection to Zirconium alloy bar, can effectively reduce manpower, and improve current detection efficiency problem.

Description

A kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism
Technical field
The present invention is applied to nuclear fuel element manufacturing field, and in particular to a kind of zirconium stick ultrasonic testing system is detected a flaw with rotation Mechanism.
Background technology
The manufacture of bar non-destructive testing fault detection system is manufactured public by the well-known large-scale non-destructive detecting device of external several families Department's monopolization, Tu Boweigao companies (Tuboscope), the Foerster companies of Germany and Biao Wei companies such as the U.S. (TechnoFour-Bowing) etc..In the automatic ultrasonic testing system that Zhejiang University develops, filled by dedicated probe mechanism It puts, moves in a straight line probe, bar rotates, and so as to cover the surface of entire bar, achievees the purpose that detection.It is this Mode there are two it is serious the shortcomings that:First, the turn error caused by bar rotation is larger;Second is that since the inertia of bar is larger, The rotary speed of bar is slow.
The content of the invention
It is an object of the invention to provide a kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism, the zirconium stick detecting systems The ultrasound detection of the core component nuclear fuel assembly end plug material Zr-4 alloy bar materials of CANDU reactor is can be applied to, improves current inspection Survey efficiency.
Realize the technical solution of the object of the invention:A kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism, the rotation are visited Hindering mechanism includes main shaft, conducting slip ring, probe socket, long guide sleeve, short-range missile set;Wherein, the main shaft inner cavity of main shaft uses multi-chamber knot Structure, including sensing chamber, long guide sleeve inner cavity, short-range missile set inner cavity;5~6 probe sockets are externally connected in the middle part of main shaft;Outside main shaft one side Equipped with long guide sleeve, main shaft opposite side is externally provided with short-range missile set, and Che Shi combined seal rings are mounted between main shaft outer end and long guide sleeve, are main Between axis outer end and short-range missile set;5~6 conducting slip rings are externally provided in long guide sleeve, each conducting slip ring is correspondingly connected with a probe Seat;Synchronous pulley is externally provided in short-range missile set, by synchronous pulley main shaft is driven to rotate, and then main shaft drives 5~6 probe sockets, leads Electric slip ring rotates and then realizes ultrasonic inspection;Water inlet is externally provided in long guide sleeve, is externally provided with water outlet in short-range missile set, water is by following Ring water tank enters water inlet, and the gap for passing through main shaft and long guide sleeve flows into sensing chamber, and then full of long guide sleeve inner cavity, short-range missile set Inner cavity, water are again flowed by water outlet in cyclic water tank in the gap of main shaft and short-range missile set;During work:Zirconium stick covers one from short-range missile End passes through long guide sleeve and leaves into main shaft inner cavity, and the probe on 5~6 probe sockets detects a flaw to zirconium stick.
A kind of zirconium stick ultrasonic testing system as described above rotation flaw detection mechanism, described in 5~6 conducting slip ring ends Portion is fixed on by locknut outside long guide sleeve, and insulation sleeve is set between adjacent conductive slip ring.
A kind of zirconium stick ultrasonic testing system as described above rotation flaw detection mechanism, described in synchronous pulley pass through circle spiral shell It is outer that female and floor clip is fixed on short-range missile set.
A kind of zirconium stick ultrasonic testing system as described above rotation flaw detection mechanism, described in the outer connection of short-range missile set encrust Body is equipped with long baffle ring between short-range missile set and long shell, and long shell is fixed on positioning gland, is set between bearing block and main shaft Corner connection ball bearing.
A kind of zirconium stick ultrasonic testing system as described above rotation flaw detection mechanism, described in long guide sleeve outside connect brevicone Body is equipped with short baffle ring between long guide sleeve and brevicone body.
Effect of the invention is that:
Zirconium stick ultrasonic testing system of the present invention rotation flaw detection mechanism, can realize and diameter of phi 13.4mm zirconiums are closed The ultrasound detection of golden bar can effectively reduce manpower, and improve current detection efficiency problem, have weight in actual production The meaning wanted.This flaw detection rotating mechanism major function realizes a closed detection chambers, can make inner filling water, and support is multiple Rotating detector carries out bar 100% flaw detection.Rotating mechanism system overall logic operation stability verification of the present invention:By the later stage Debugging and experiment, this rotation flaw detection mechanism meets the design requirement at initial stage, is successfully applied to zirconium stick ultrasonic testing system;This rotation The rotary speed for turning the operation of flaw detection mechanism is 1500rpm, feed speed 550mm/min, intake pressure 0.2MPa, by being System carries out the test of 30 days by a definite date, and rotation flaw detection mechanism is stable, meets the design requirement of early period.System basic performance is tested Card:It is spot-check by the detection information in 15 days, each passage selects 20 groups of data and carries out stability verification.Its Plays is hindered Amplitude stabilization is detected within 2dB, standard hinders detecting location stabilization within 5mm, better than in NB/T 47013.3-2015 standards It is required that.
Description of the drawings
Fig. 1 is a kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism structure diagram of the present invention;
Fig. 2 is the main shaft portion structure diagram of Fig. 1.
In figure:1. sensing chamber;2. locknut;3. insulation sleeve;4. conducting slip ring;5. probe socket;6. bearing block;7. corner connection ball axis It holds;8. positioning gland;9. synchronous pulley;10. round nut;11. long shell;12. short-range missile set;13. water inlet;14. water outlet; 15. long guide sleeve inner cavity;16. short-range missile covers inner cavity;18. Che Shi combined seal rings;29. long guide sleeve;30. brevicone body;33. main shaft;34. Floor clip;36. long baffle ring;37. short baffle ring;
Specific embodiment
It detects a flaw in the following with reference to the drawings and specific embodiments to a kind of zirconium stick ultrasonic testing system rotation of the present invention Mechanism is further described.
As depicted in figs. 1 and 2, a kind of zirconium stick ultrasonic testing system of the present invention rotation flaw detection mechanism, it is main Including main shaft 33, conducting slip ring 4, probe socket 5, long guide sleeve 29, short-range missile set 12 etc..
The main shaft inner cavity of main shaft 33 uses multi-chamber structure;5 probe sockets 5 are externally connected at 33 middle part of main shaft.
33 one side of main shaft is externally provided with long guide sleeve 29, and 33 opposite side of main shaft is externally provided with short-range missile and covers 12, Che Shi combined seal rings 18 Between 33 outer end of main shaft and long guide sleeve 29, between 33 outer end of main shaft and short-range missile set 12.
5 conducting slip rings 4 are externally provided in long guide sleeve 29, each conducting slip ring 4 is correspondingly connected with a probe socket 5.
Synchronous pulley 9 is externally provided in short-range missile set 12, by synchronous pulley 9 main shaft 33 is driven to rotate, and then main shaft 33 drives 5 Probe socket 5, conducting slip ring 4 rotate and then realize ultrasonic inspection.
Water inlet 13 is externally provided in long guide sleeve 29, is externally provided with water outlet 14 in short-range missile set 12, water is entered by cyclic water tank Water inlet 13, and the gap for passing through main shaft 33 and long guide sleeve 29 flows into sensing chamber 1, and then full of long guide sleeve inner cavity 15, short-range missile set Inner cavity 16, water are again flowed by water outlet 14 in cyclic water tank in the gap of main shaft 33 and short-range missile set 12.During work:Zirconium stick from Short-range missile covers 12 one end and enters main shaft inner cavity, and passes through long guide sleeve 29 and leave, and the probe on 5 probe sockets 5 visits zirconium stick Wound.
54 ends of conducting slip ring are fixed on by locknut 2 outside long guide sleeve 29, are set between adjacent conductive slip ring 4 Insulation sleeve 3.
The synchronous pulley 9 is fixed on by round nut 10 and floor clip 34 outside short-range missile set 12.
Connection long shell 11 outside the short-range missile set 12, is equipped with long baffle ring 36 between short-range missile set 12 and long shell 11, encrusts Body 11 is fixed on positioning gland 8, and corner connection ball bearing 7 is set between bearing block 6 and main shaft 33.
Brevicone body 30 is connected outside the long guide sleeve 29, short baffle ring 37 is equipped between long guide sleeve 29 and brevicone body 30.
Rotation flaw detection mechanical work principle of the present invention is by synchronous pulley main shaft to be driven to rotate, and then main shaft band Dynamic probe socket, conducting slip ring rotate and then realize the function of ultrasonic inspection and signal output.Rotating mechanism is made by cyclic water tank Its inner cavity is full of deionized water, and motor work drives synchromesh gear to rotate by odontoid belt, so that main shaft rotates.Finally Realize 5 flaw detection probe sockets rotations, zirconium stick covers one end from short-range missile and enters the sensing chamber of main shaft at this time, and passes through long guide sleeve and leave rotation Turn flaw detection mechanism.Realize that the ultrasonic inspection that 100% is carried out to zirconium stick works by such mode.
Water intake mode designed by rotation flaw detection mechanism of the present invention, which can be realized, is fully sealed water, internal pressure It impacts small.Spindle assemblies inner cavity is sealed using multi-chamber, forms individual chamber, and water enters each chamber through cyclic water tank, can Inner cavity water pressure is kept, reduces aqueous medium slip.Water circulation line can effectively reduce the frictional heat of machine operation generation, ensure Mechanism long-time stable operating.Operation principle enters water inlet for water by cyclic water tank, and passes through between main shaft and long guide sleeve Clearance flow enters sensing chamber, and then full of long guide sleeve inner cavity, short-range missile set inner cavity, water the gap of main shaft and short-range missile set by water outlet again In secondary inflow cyclic water tank.

Claims (5)

1. a kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism, it is characterised in that:Rotation flaw detection mechanism includes main shaft (33), conducting slip ring (4), probe socket (5), long guide sleeve (29), short-range missile set (12);
Wherein, the main shaft inner cavity of main shaft (33) uses multi-chamber structure, including sensing chamber (1), long guide sleeve inner cavity (15), short-range missile set Inner cavity (16);5~6 probe sockets (5) are externally connected in the middle part of main shaft (33);
Main shaft (33) one side is externally provided with long guide sleeve (29), and main shaft (33) opposite side is externally provided with short-range missile set (12), Che Shi combination sealings (18) are enclosed to be mounted between main shaft (33) outer end and long guide sleeve (29), between main shaft (33) outer end and short-range missile set (12);
Be externally provided with 5~6 conducting slip rings (4) in long guide sleeve (29), each conducting slip ring (4) be correspondingly connected with one it is above-mentioned in main shaft (33) probe socket (5) outside middle part;
Synchronous pulley (9) is externally provided in short-range missile set (12), by synchronous pulley (9) main shaft (33) is driven to rotate, and then main shaft (33) 5~6 probe sockets (5), conducting slip ring (4) is driven to rotate and then realize ultrasonic inspection;
Water inlet (13) is externally provided in long guide sleeve (29), is externally provided with water outlet (14) in short-range missile set (12), water passes through cyclic water tank Into water inlet (13), and the gap for passing through main shaft (33) and long guide sleeve (29) flows into sensing chamber (1), and then full of in long guide sleeve Chamber (15), short-range missile set inner cavity (16), water are again flowed by water outlet (14) in the gap of main shaft (33) and short-range missile set (12) and followed In ring water tank;
During work:Zirconium stick enters main shaft inner cavity from short-range missile set (12) one end, and passes through long guide sleeve (29) and leave, in 5~6 probes Probe on seat (5) detects a flaw to zirconium stick.
2. a kind of zirconium stick ultrasonic testing system according to claim 1 rotation flaw detection mechanism, it is characterised in that:Described 5~6 conducting slip ring (4) ends are fixed on long guide sleeve (29) outside by locknut (2), are set between adjacent conductive slip ring (4) exhausted Edge set (3).
3. a kind of zirconium stick ultrasonic testing system according to claim 1 rotation flaw detection mechanism, it is characterised in that:Described Synchronous pulley (9) is fixed on short-range missile set (12) outside by round nut (10) and floor clip (34).
4. a kind of zirconium stick ultrasonic testing system according to claim 1 rotation flaw detection mechanism, it is characterised in that:Described Short-range missile set (12) connects long shell (11) outside, and long baffle ring (36), long shell are equipped between short-range missile set (12) and long shell (11) (11) it is fixed on positioning gland (8), corner connection ball bearing (7) is set between bearing block (6) and main shaft (33).
5. a kind of zirconium stick ultrasonic testing system according to claim 1 rotation flaw detection mechanism, it is characterised in that:Described Long guide sleeve (29) connects brevicone body (30) outside, and short baffle ring (37) is equipped between long guide sleeve (29) and brevicone body (30).
CN201610319302.4A 2016-05-13 2016-05-13 A kind of zirconium stick ultrasonic testing system rotation flaw detection mechanism Active CN105784842B (en)

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CN110274953B (en) * 2018-03-15 2021-09-24 中国科学院金属研究所 End blind area-free small-diameter wire rod pipe ultrasonic detector
CN112557501B (en) * 2020-11-12 2024-03-01 宝武杰富意特殊钢有限公司 Guiding device for rotary ultrasonic detection of round bar and using method thereof

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