CN117723626A - Clamping device for eddy current probe - Google Patents
Clamping device for eddy current probe Download PDFInfo
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- CN117723626A CN117723626A CN202311534730.5A CN202311534730A CN117723626A CN 117723626 A CN117723626 A CN 117723626A CN 202311534730 A CN202311534730 A CN 202311534730A CN 117723626 A CN117723626 A CN 117723626A
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- eddy current
- current probe
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- rod
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- 239000000523 sample Substances 0.000 title claims abstract description 154
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 239000000446 fuel Substances 0.000 claims abstract description 47
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 7
- 238000007689 inspection Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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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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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses an eddy current probe clamping device, which comprises a fixing component, a base, an unlocking mechanism, a protection mechanism, a calibration rod component and a guide compensation mechanism, wherein the calibration rod component is arranged at the top of the guide compensation mechanism and comprises a calibration rod unit and a roller unit; when the eddy current probe is in an unlocking state, the fixing component is separated from the base, and the other end of the eddy current probe is separated from the gap. According to the eddy current probe clamping device, the fixing component and the base can be quickly unlocked under emergency conditions, so that the eddy current probe clamping device is convenient to recycle; the eddy current probe can be enabled to complete measurement within the full thickness range of the fuel assembly; the protection mechanism can respond in time to protect the fuel assembly when a large friction force is generated between the vortex probe and the fuel assembly.
Description
Technical Field
The invention belongs to the technical field of nuclear power station fuel assembly detection, and particularly relates to an eddy current probe clamping device.
Background
The nuclear fuel assembly is in complex and changeable environments such as high temperature, high pressure, high irradiation and the like for a long time, so that the surface of the zirconium alloy cladding is extremely easy to generate oxidation phenomenon to form an oxide film. When the oxide film reaches a certain thickness, the heat exchange capacity of the fuel assembly can be reduced, the corrosion speed of the fuel rod is increased, the fuel performance is deteriorated, the fuel is an important factor affecting the safe operation of the reactor, and the high-precision detection device is used for detecting the thickness of the oxide film of the nuclear fuel assembly by combining the eddy current detection method, so that the method is the most direct and effective means.
The thickness of the oxide film is generally less than thirty micrometers, and besides the high detection precision of the eddy current probe, the high requirements on the positioning and clamping of the eddy current probe are also provided. The existing eddy current probe clamping device at home and abroad has the following defects:
(1) The eddy current probe assembly can not be recovered or the recovery mode is inconvenient in emergency;
(2) The eddy current probe cannot meet the requirements of the field structure environment and the detection area, namely, the eddy current probe cannot finish the measurement of the fuel assembly within the full thickness range under the conditions of no interference with the field structure and limited displacement stroke;
(3) When the vortex probe collides with the fuel assembly and extrudes in the advancing and retreating processes, the induction sensitivity is low, the response is not timely, and the safety protection of the fuel assembly is not in place.
Therefore, there is a need to design and develop an eddy current probe clamping device.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the invention aims to provide an eddy current probe clamping device which can realize quick unlocking between an eddy current probe, a fixing assembly and a base under an emergency condition and is convenient for recycling; when the vortex probe collides with the fuel assembly, extrudes and the like in the advancing and retreating processes, the vortex probe can rapidly respond and can safely retreat; the moving distance of the eddy current probe can be prolonged, so that the requirements of the field structure environment and the detection area can be met.
In order to achieve the above purpose, the invention adopts the following technical proposal,
the eddy current probe clamping device comprises a fixing assembly, a base, an unlocking mechanism, a protection mechanism, a calibration rod assembly and a guide compensation mechanism, wherein the base is fixedly connected with the protection mechanism, the calibration rod assembly comprises a calibration rod unit and a roller unit, one end of the eddy current probe is fixedly connected with the fixing assembly, the eddy current probe is in a locking state and an unlocking state, when the eddy current probe is in the locking state, the fixing assembly is fixedly connected with the base, and the other end of the eddy current probe penetrates through a gap between the calibration rod unit and the roller unit; when the eddy current probe is in the unlocking state, the fixing component is separated from the base, and the other end of the eddy current probe is separated from a gap between the calibration rod unit and the roller unit; the unlocking mechanism is used for separating the fixing assembly from the base, the guide compensation mechanism is used for prolonging the moving distance of the eddy current probe, and the protection mechanism is used for sending out a response signal to stop the eddy current probe when the friction force between the eddy current probe and the fuel assembly is greater than the pretightening force set by the protection mechanism.
By arranging the unlocking mechanism, the vortex probe and the fixing assembly can be quickly unlocked from the base under an emergency condition, and the vortex probe and the fixing assembly can be conveniently recycled; in addition, the guide compensation mechanism is arranged in the advancing direction of the eddy current probe, so that the travel of the eddy current probe is increased, and the end, far away from the fixed assembly, of the eddy current probe can completely penetrate through the thickness direction of the fuel assembly, so that the eddy current probe can finish measurement within the full thickness range of the fuel assembly; through setting up protection machanism for when the vortex probe is in advance in-process and the fuel assembly contact produces friction and frictional force is greater than the pretightning force that protection machanism set up, can trigger the sensor and send the signal, the sensor can give the control system on the multi-functional check out test set of fuel with this signal transmission, control system can further control the driving motor stop work that drive vortex probe moved along its length direction (the length direction of vortex probe), further makes the vortex probe stop along its length direction's motion in order to avoid continuing to take place the friction with fuel assembly.
According to some preferred embodiments of the present invention, the fixing assembly comprises a fixing bracket, a top cover and a containing part, one end of the eddy current probe is fixedly connected with the fixing bracket, the fixing bracket is fixedly connected with the top cover, the top cover is connected with the top of the containing part, a first containing cavity is formed in the containing part, and part of the unlocking mechanism is located in the first containing cavity; the base is provided with a second accommodating cavity, and the accommodating part is positioned in the second accommodating cavity and detachably connected with the base.
According to some preferred embodiments of the present invention, the unlocking mechanism includes a first gear shaft, a first gear and a second gear disposed at the bottom of the first gear shaft, the first gear being located above the second gear, and both the first gear and the second gear being fixedly connected to the first gear shaft; the unlocking mechanism further comprises a first rack, a second gear shaft, a third gear and a fourth gear, wherein the third gear and the second gear are arranged on the second gear shaft, the third gear is meshed with the first gear and the second gear, the first rack is meshed with the second gear, and the second rack is meshed with the fourth gear. In some embodiments of the invention, the first gear is a bevel gear and the third gear is a bevel gear.
According to some preferred embodiments of the present invention, a first connecting rod is fixedly disposed at one end of the first rack, a second connecting rod is fixedly disposed at one end of the second rack, and when the eddy current probe is in the locked state, one end of the first connecting rod and one end of the second connecting rod penetrate through the side wall of the accommodating portion and then are connected with the side wall of the base.
According to some preferred embodiments of the present invention, a first rotating member is disposed at the top of the first gear shaft, a first protection cylinder is disposed outside the first rotating member, and the first rotating member is located above the top cover; and a lifting hook is fixedly arranged on the top cover.
In some embodiments of the invention, the unlocking mechanism needs to be used together with the long-rod hook, when an emergency occurs, the first rotating piece is inserted into the first rotating piece by manual operation to rotate the first rotating piece so as to drive the first gear shaft to rotate, the rotation of the first gear shaft drives the first gear and the second gear to rotate, the rotation of the second gear drives the first rack meshed with the first gear to move, and then drives the first connecting rod at one end of the first rack to move, so that the first connecting rod is finally separated from the side wall of the base; in addition, the rotation of the first gear and the second gear can drive the third gear meshed with the first gear to rotate, further drive the second gear shaft fixedly connected with the third gear to rotate, then drive the fourth gear at the other end of the second gear shaft to rotate, finally enable the second rack meshed with the fourth gear to move, then drive the second connecting rod at one end of the second rack to move, and finally enable the second connecting rod to be separated from the side wall of the base. After the first connecting rod and the second connecting rod are separated from the side wall of the base, the long rod hook is inserted into the lifting hook to lift and recover the fixing component, the vortex probe and the like.
According to some preferred embodiments of the present invention, the unlocking mechanism further comprises a jacking component, the jacking component comprises a screw rod, a sliding block, a bearing and a limiting frame, the bearing is arranged at the bottom of the screw rod and is located below the sliding block, the screw rod penetrates through the thickness direction of the sliding block and is rotationally connected with the sliding block, and one end of the sliding block, which is far away from the screw rod, penetrates through the thickness direction of the side wall of the base and is located below the accommodating part; the top of lead screw is provided with the second and rotates the piece, the outside of second rotates the piece is provided with the second protection section of thick bamboo. The setting of jacking subassembly is convenient for utilize jacking subassembly to give fixed subassembly ascending thrust under emergency for utilize the long pole hook to upwards mention fixed subassembly and vortex probe time more laborsaving.
According to some preferred embodiments of the present invention, a stopper is provided on a side of the base close to the jacking assembly, the stopper includes a bottom plate and stopper plates disposed at both ends of the bottom plate, and a distance between the two stopper plates is equal to a width of the slider; the limiting frame is fixedly arranged at the top of the limiting block, and the jacking component is used for pushing the fixing component to move upwards so as to be separated from the base. In some embodiments of the invention, a containing space for containing the sliding block is formed between the bottom plate and the outer wall of the containing part and between the two limiting plates, and the width of the sliding block is equal to the distance between the two limiting plates, so that the sliding block only moves up and down in the vertical direction along with the rotation of the screw rod, and the containing part is pushed upwards by the upward movement of the sliding block, so that the fixing component and the vortex probe are pushed upwards, and the fixing component and the vortex probe are lifted conveniently.
According to some preferred embodiments of the present invention, the protection mechanism includes a sensor, a sensor mounting plate, a sensor trigger plate, fixed blocks fixedly disposed at both ends of the sensor mounting plate, and a moving plate slidably disposed between the two fixed blocks, the sensor is fixedly connected to the sensor mounting plate, and the moving plate is fixedly connected to the base; the movable plate comprises a first part and second parts positioned at two ends of the first part, a connecting plate is arranged between the two second parts, a first sliding rod is arranged between the two fixed blocks, and the two second parts are respectively and slidably connected with the two first sliding rods. In some embodiments of the invention, when the eddy current probe encounters no resistance or the resistance is less than the pre-tightening force set by the protection mechanism, the end of the moving plate, which is close to the guide compensation mechanism, is always attached to a fixed block, which is close to the guide compensation mechanism.
According to some preferred embodiments of the present invention, a second sliding rod is further disposed between the two first sliding rods, a first elastic member is sleeved on an outer wall of the second sliding rod, the first elastic member is located between one of the fixing blocks and the connecting plate, one end of the first elastic member is fixedly connected with one of the fixing blocks far away from the guiding compensation mechanism, and the other end of the first elastic member is fixedly connected with the connecting plate; the length of the moving plate is smaller than the distance between the two fixed blocks.
According to some preferred embodiments of the present invention, one side of the second portion, which is close to the trigger end of the sensor, is fixedly provided with the sensor trigger plate, and an inner side surface of the sensor trigger plate is in contact with the trigger end of the sensor.
In some embodiments of the present invention, an adjusting screw is disposed at an end of the second sliding rod away from the eddy current probe, and the pretightening force of the first elastic member on the second sliding rod may be set by rotating the adjusting screw. The eddy current probe can meet resistance in the motion process, when the encountered resistance value is greater than the pretightening force of the first elastic piece, the movable plate can move to the position where one fixed block far away from the calibration rod assembly is located, and the movement of the movable plate can drive the sensor trigger plate to move so as to trigger the sensor. The sensor can further send a signal to a control system on the fuel multifunctional inspection device, so that the control system further controls a driving motor for driving the eddy current probe to move along the length direction of the eddy current probe to stop working, the eddy current probe stops moving continuously so as to avoid collision or extrusion with the fuel assembly, and the sensor plays a role in protecting the fuel assembly finally so as to avoid the friction force of the fuel assembly exceeding the threshold value of the fuel assembly.
According to some preferred embodiments of the present invention, the guiding compensation mechanism includes a sliding table assembly and moving brackets disposed on two sides of the sliding table assembly, the sliding table assembly includes a fixed table and a sliding table slidably connected to a top of the fixed table, the fixed table includes a third portion and two fourth portions fixedly disposed at two ends of the third portion, the third portion is perpendicular to the fourth portions, an extension portion is fixedly disposed at a top end of each of the fourth portions, a first groove is formed in the extension portion, the first groove is formed from a top surface to a bottom surface of the extension portion, a length of the first groove is equal to a length of the extension portion, and a height of the first groove is smaller than a height of the extension portion.
According to some preferred embodiments of the present invention, a sliding groove is formed at the top of one side of each of the two extending portions, where the two extending portions are close to each other, and the length direction of the sliding groove is parallel to the length direction of the extending portion; the bottom at slip table both ends has all been seted up the second recess, the second recess is offered to the top surface by the bottom surface of slip table, the length of second recess equals the width of slip table, the height of second recess is less than the height of slip table, the second recess corresponds first recess setting, and every the both sides of second recess are all fixed to be provided with the curb plate, the curb plate by the bottom surface downwardly extending of slip table.
According to some preferred embodiments of the present invention, a distance between two side plates on two sides of one second groove is equal to a width of the second groove and is smaller than a width of the first groove, a connecting shaft is fixedly arranged between the two side plates on two sides of one second groove, a pulley is sleeved on an outer circumference of the connecting shaft, the pulley is rotationally connected with the connecting shaft, a sliding rail for sliding the pulley is arranged at a bottom of the first groove, two fixing plates are fixedly arranged on a bottom surface of the sliding table corresponding to the sliding groove, one side, away from each other, of the two fixing plates is attached to a side surface of an adjacent side plate, a boss is fixedly arranged on a bottom surface of the fixing plate, and the sliding groove is used for sliding the boss; and setting a virtual plane parallel to the fourth part, wherein the orthographic projection of the second groove on the virtual plane is positioned in the orthographic projection range of the first groove on the virtual plane. When the eddy current probe moves towards the direction close to the calibration rod assembly, when the fixed support moving to the eddy current probe touches the calibration rod assembly, the eddy current probe is driven to move continuously, so that the fixed support pushes the calibration rod assembly to move forwards, and then the sliding table is driven to slide forwards, so that the eddy current probe can move forwards for a certain distance continuously, the stroke of the eddy current probe is increased, the thickness direction that one end of the eddy current probe far away from the fixed support can completely pass through the fuel assembly is guaranteed, the eddy current probe can complete measurement within the full thickness range of the fuel assembly, and the accuracy of a measurement result is guaranteed.
According to some preferred embodiments of the present invention, each of the moving brackets includes a first support plate, a second support plate and a second elastic member, the first support plate is located above the second support plate, the first support plate is fixedly connected with one end of the sliding table, the second support plate is fixedly connected with one end of the extension portion, a support rod is fixedly arranged between two ends of the second support plate, one end of the support rod, which is close to the fixing assembly, is provided with a barrier, one end of the barrier is fixedly connected with one end, which is close to the fixing assembly, of the first support plate, and the other end of the barrier is in sliding connection with the support rod; the periphery cover of bracing piece is equipped with the second elastic component, the one end of second elastic component with blend stop fixed connection, the other end of second elastic component with the one end fixed connection that the second backup pad kept away from fixed subassembly. The movable support is arranged, so that when the fixed support drives the sliding table to move forwards, the first support plate is driven to move so as to compress the second elastic piece; when the eddy current probe retreats to the fixed support to be separated from the calibration rod assembly, the compressed second elastic piece can rebound, and accordingly the first support plate and the sliding table are driven to reset.
According to some preferred embodiments of the present invention, the calibration rod assembly is disposed on the top surface of the sliding table, the calibration rod assembly further includes a calibration rod fixing seat and a roller fixing seat, the calibration rod unit is disposed on the calibration rod fixing seat, the roller unit is disposed on the roller fixing seat, a linear direction in which the calibration rod unit is disposed is parallel to a linear direction in which the roller unit is disposed, the calibration rod unit includes a plurality of calibration rods that are uniformly spaced, the roller unit includes a plurality of rollers that are uniformly spaced, a roller bushing is sleeved on an outer periphery of the roller, and the calibration rods are disposed in one-to-one correspondence with the rollers. The roller bushing sleeved on the periphery of the roller can rotate around the roller, and if the vortex probe contacts the roller bushing in the moving process between the calibration rod unit and the roller unit, rolling friction can be generated between the vortex probe and the roller bushing, the friction force generated by friction is small, the movement of the vortex probe is not greatly blocked, and the influence on a measurement result can be avoided.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages: according to the eddy current probe clamping device, the unlocking mechanism is arranged, so that the eddy current probe, the fixing assembly and the base can be unlocked rapidly in an emergency, and the eddy current probe and the fixing assembly can be recovered conveniently; in addition, the guide compensation mechanism is arranged in the advancing direction of the eddy current probe, so that the travel of the eddy current probe is increased, and the eddy current probe can finish measurement within the full thickness range of the fuel assembly; through setting up protection machanism for when the eddy current probe takes place friction with the fuel assembly and produces the frictional force that is greater than the pretightning force that protection machanism set up at the removal in-process, can trigger the sensor and send out the signal, the sensor can give the control system on the multi-functional check out test set of fuel with this signal transmission, control system can further control drive eddy current probe along its length direction removal driving motor stop work, further makes eddy current probe stop remove in order to avoid continuing to take place the friction with the fuel assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an eddy current probe holder in accordance with a preferred embodiment of the invention;
FIG. 2 is a schematic perspective view of a fixing assembly, a base and an unlocking mechanism according to a preferred embodiment of the present invention;
FIG. 3 is a schematic perspective view of the hidden part of FIG. 2 from another perspective;
FIG. 4 is a schematic perspective view of the hidden part of FIG. 3 from another perspective;
FIG. 5 is a schematic perspective view of a protection mechanism according to a preferred embodiment of the present invention;
FIG. 6 is a schematic perspective view of a guide compensation mechanism and calibration rod assembly in accordance with a preferred embodiment of the present invention;
FIG. 7 is a schematic perspective view showing a sliding table and a fixed table separated from each other in a preferred embodiment of the present invention;
wherein, the reference numerals are as follows: the fixing component-1, the fixing bracket-11, the top cover-12, the accommodating part-13, the first accommodating cavity-131, the base-2, the bottom plate-21, the limiting plate-22, the unlocking mechanism-3, the first gear shaft-31 a, the second gear shaft-31 b, the first gear-32 a, the second gear-32 b, the third gear-32 c, the fourth gear-32 d, the first rack-33 a, the second rack-33 b, the first connecting rod-34 a, the second connecting rod-34 b, the first protection cylinder-35, the lifting hook-36, the jacking component-37, the screw rod-371, the sliding block-372, the bearing-373, the limiting frame-374, the second protection cylinder-375, the protection mechanism-4, the sensor-41, the sensor mounting plate-42, sensor trigger plate-43, fixed block-44, first part-451, second part-452, connection plate-453, first slide rod-46 a, second slide rod-46 b, first elastic member-47, adjusting screw-48, guide compensation mechanism-5, slide table assembly-51, third part-511, fourth part-512, extension part-513, first groove-5131, slide groove-5132, slide rail-5133, slide table-514, second groove-5141, side plate-515, pulley-516, fixed plate-517, boss-518, moving bracket-52, first support plate-521, second support plate-522, second elastic member-523, support rod-524, stopper bar-525, calibration rod assembly-6, the device comprises a calibration rod fixing seat-61, a roller fixing seat-62, a calibration rod-63, a roller-64, a roller bushing-65 and an eddy current probe-7.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Referring to fig. 1 to 7, the eddy current probe clamping device of the present embodiment includes a fixing assembly 1, a base 2, an unlocking mechanism 3, a protection mechanism 4, a guide compensation mechanism 5, and a calibration rod assembly 6. The eddy current probe clamping device belongs to a part of fuel multifunctional inspection equipment, is matched with a moving mechanism on the fuel multifunctional inspection equipment, and can drive the eddy current probe 7 to move to the detection position of the fuel assembly.
Further, referring to fig. 1 to 3, the fixing assembly 1 includes a fixing bracket 11, a top cover 12, and a receiving portion 13. One end of the eddy current probe 7 is fixedly connected with the fixing support 11, the fixing support 11 is fixedly connected with the top cover 12, the fixing support 11 and the eddy current probe 7 are located above the top cover 12, the top cover 12 is fixedly provided with the hanging hook 36, and the bottom surface of the top cover 12 is connected with the top of the accommodating part 13. Wherein the interior of the accommodating part 13 is provided with a first accommodating cavity 131, and a part of the unlocking mechanism 3 is positioned in the first accommodating cavity 131; the base 2 has a second receiving cavity in which the receiving portion 13 is located and detachably connected with the base 2.
Further, referring to fig. 3 and 4, the unlocking mechanism 3 includes a first gear shaft 31a, a second gear shaft 31b, a first rack 33a, a second rack 33b, a first gear 32a and a second gear 32b provided at the bottom of the first gear shaft 31a, and a third gear 32c and a fourth gear 32d provided at both ends of the second gear shaft 31b, respectively. The first gear shaft 31a is perpendicular to the second gear shaft 31b, the first rack 33a is parallel to the second rack 33b, the first gear 32a is located above the second gear 32b, the first gear 32a and the second gear 32b are fixedly connected with the first gear shaft 31a, the first gear 32a and the second gear 32b are meshed with the third gear 32c, the first rack 33a is meshed with the second gear 32b, and the second rack 33b is meshed with the fourth gear 32d. In the present embodiment, the first gear 32a and the third gear 32c are bevel gears, and the second gear 32b and the fourth gear 32d are circular gears. In addition, a first connecting rod 34a is fixedly disposed at one end of the first rack 33a, a second connecting rod 34b is fixedly disposed at one end of the second rack 33b, the first connecting rod 34a is parallel to the second connecting rod 34b, the first connecting rod 34a is disposed at the left end of the first rack 33a, and the second connecting rod 34b is disposed at the right end of the second rack 33 b. The eddy current probe 7 has a locking state and an unlocking state, when the eddy current probe 7 is in the locking state, one end of the first connecting rod 34a and one end of the second connecting rod 34b penetrate through the side wall of the accommodating part 13 and are in sliding connection with the side wall of the base 2; when the eddy current probe 7 is in the unlocked state, the first connecting rod 34a and the second connecting rod 34b are separated from the side wall of the base 2.
Specifically, the top of the first gear shaft 31a is provided with a first rotating member, the first rotating member is provided with a first protection cylinder 35 outside, the first rotating member and the first protection cylinder 35 are both located above the top cover 12, the first rotating member is used for being matched with an operating rod, the operating rod is manually held to be inserted into the first rotating member, and the operating rod is rotated to enable the first rotating member to rotate, so that the first gear shaft 31a is driven to rotate. The rotation of the first gear shaft 31a drives the first gear 32a and the second gear 32b to rotate, and the rotation of the second gear 32b drives the first rack 33a meshed with the first gear to move, so as to drive the first connecting rod 34a at one end of the first rack 33a to move, and finally, the first connecting rod 34a is separated from the side wall of the base 2. In addition, the rotation of the first gear 32a and the second gear 32b also drives the third gear 32c meshed with the first gear 32a to rotate, so as to drive the second gear shaft 31b fixedly connected with the third gear 32c to rotate, then drive the fourth gear 32d at the other end of the second gear shaft 31b to rotate, finally, the second rack 33b meshed with the fourth gear 32d is moved, then drive the second connecting rod 34b at one end of the second rack 33b to move, and finally, the second connecting rod 34b is separated from the side wall of the base 2. After the first connecting rod 34a and the second connecting rod 34b are separated from the side wall of the base 2, the long rod hook is inserted into the hook 36 to lift and recover the fixing assembly 1, the eddy current probe 7 and the like. The first rotating member of this embodiment is preferably a rotating hex head.
Referring to fig. 1 to 3, the unlocking mechanism 3 further includes a jacking assembly 37, and the jacking assembly 37 includes a screw rod 371, a slider 372, a bearing 373, and a stopper 374. Wherein, the top of lead screw 371 runs through the top of spacing 374 and rotates with the top of spacing 374 to be connected, and the bottom of lead screw 371 is provided with bearing 373, and bearing 373 is located the below of slider 372, and lead screw 371 runs through the thickness direction of slider 372 and rotates with slider 372 to be connected, and the top of lead screw 371 is provided with the second and rotates the piece, and the outside of second rotates the piece is provided with second protection tube 375, and second rotates the piece and all is located the top at spacing 374 top with second protection tube 375. One end of the slider 372 away from the screw 371 penetrates through the thickness direction of the side wall of the base 2 and is located below the accommodating portion 13.
Specifically, the middle part of one side of the base 2, which is close to the jacking component 37, is provided with a limiting block, the limiting block comprises a bottom plate 21 and limiting plates 22 arranged at two ends of the bottom plate 21, the limiting block 374 is fixedly arranged at the top of the limiting block, a containing space for containing the sliding block 372 is formed between the bottom plate 21 and the outer walls of the two limiting plates 22 and the containing part 13, the width of the sliding block 372 is equal to the distance between the two limiting plates 22, and the sliding block 372 can only vertically move along with the rotation of the screw rod 371. In an emergency, after the first connecting rod 34a and the second connecting rod 34b are separated from the side wall of the base 2 through the cooperation of the operating rod and the first rotating member, when the fixing assembly 1 and the eddy current probe 7 need to be lifted, the operating rod can be manually held to be inserted into the second rotating member, the operating rod is rotated to drive the second rotating member to rotate, and then the screw rod 371 is driven to rotate, so that the sliding block 372 on the screw rod 371 can move upwards along the length direction of the screw rod 371 to push the accommodating part 13 upwards, and then the fixing assembly 1 is pushed upwards to be separated from the base 2. The jacking assembly 37 is convenient for utilizing the jacking assembly 37 to push the fixing assembly 1 upwards in emergency, so that the fixing assembly 1 and the vortex probe 7 are lifted upwards by utilizing the long rod hook to save more labor. The second rotating member of this embodiment is also preferably a rotating hex head.
Referring to fig. 1 and 5, the protection mechanism 4 of the present embodiment is located below the base 2, and the protection mechanism 4 includes a sensor 41, a sensor mounting plate 42, a sensor trigger plate 43, fixed blocks 44 fixedly provided at both ends of the sensor mounting plate 42, and a moving plate slidably provided between the two fixed blocks 44, the length of the moving plate being smaller than the distance between the two fixed blocks 44. Wherein, the bottom surface of base 2 and the top surface fixed connection of movable plate, sensor 41 and sensor mounting panel 42 fixed connection, the sensor 41 is provided with two side by side in this embodiment. Two first slide bars 46a are arranged in parallel between the two fixed blocks 44, and a second slide bar 46b is also arranged between the two first slide bars 46a, the second slide bar 46b being parallel to the first slide bars 46a.
The moving plate comprises a first portion 451 and second portions 452 located at two ends of the first portion 451, a connecting plate 453 is arranged between the two second portions 452, one side, close to the triggering end of the sensor 41, of one second portion 452 is fixedly provided with a sensor triggering plate 43, and the inner side face of the sensor triggering plate 43 is in contact with the triggering end of the sensor 41. The two second portions 452 are slidably connected to the two first slide bars 46a, respectively. The outer wall of the second sliding rod 46b is sleeved with a first elastic piece 47, the first elastic piece 47 is located between a fixed block 44 far away from the eddy current probe 7 and the connecting plate 453, one end of the first elastic piece 47 is fixedly connected with the fixed block 44, the other end of the first elastic piece 47 is fixedly connected with the connecting plate 453, and the first elastic piece 47 in this embodiment is preferably a spring. An adjusting screw 48 is provided at an end of the second slide rod 46b remote from the eddy current probe 7, and a biasing force of the first elastic member 47 on the second slide rod 46b can be provided by rotating the adjusting screw 48. In this embodiment, when the eddy current probe 7 encounters no resistance or the resistance value is smaller than the pre-tightening force of the first elastic member 47, the end of the moving plate close to the guiding compensation mechanism 5 is always attached to a fixed block 44 close to the guiding compensation mechanism 5. When the eddy current probe 7 collides with the fuel assembly or is extruded to generate friction in the advancing or retreating process, the end part of the eddy current probe 7 is subjected to resistance, and when the resistance value is larger than the pretightening force of the first elastic piece 47, the moving plate moves to a position away from the fixed block 44 of the calibration rod assembly 6, and the sensor trigger plate 43 is driven to move by the movement of the moving plate, so that the sensor 41 is triggered. The sensor 41 further sends a signal to a control system on the multifunctional fuel inspection device, so that the control system further controls a driving motor for driving the eddy current probe 7 to move along the length direction of the eddy current probe 7 to stop working, and the eddy current probe 7 stops moving forward or backward to avoid friction with the fuel assembly, and finally protects the fuel assembly to avoid the friction force of the fuel assembly exceeding a threshold value.
Further, referring to fig. 6 and 7, the guide compensating mechanism 5 includes a slide table assembly 51 and moving brackets 52 provided at both sides of the slide table assembly 51. The sliding table assembly 51 includes a fixed table and a sliding table 514 slidably connected to a top of the fixed table, and specifically, the fixed table includes a third portion 511 and two fourth portions 512 fixedly disposed at two ends of the third portion 511, the third portion 511 is perpendicular to the fourth portions 512, and an extension portion 513 is fixedly disposed at a top end of each fourth portion 512. The extending portion 513 is provided with a first groove 5131 from the top surface to the bottom surface, the bottom of the first groove 5131 is provided with a sliding rail 5133, the length of the sliding rail 5133 is equal to that of the first groove 5131, the length of the first groove 5131 is equal to that of the extending portion 513, and the height of the first groove 5131 is smaller than that of the extending portion 513. In addition, the top of the side of the two extending portions 513 close to each other is provided with a sliding groove 5132, and the length direction of the sliding groove 5132 is parallel to the length direction of the extending portion 513.
The bottoms of the two ends of the sliding table 514 are provided with second grooves 5141 from the bottom surface to the top surface, the length of each second groove 5141 is equal to the width of the sliding table 514, the height of each second groove 5141 is smaller than that of the sliding table 514, and the second grooves 5141 are arranged corresponding to the first grooves 5131. Side plates 515 are fixedly arranged on two sides of each second groove 5141, and the side plates 515 extend downwards from the bottom surface of the sliding table 514. The distance between the two side plates 515 on both sides of the same second groove 5141 is equal to the width of the second groove 5141 and smaller than the width of the first groove 5131, and a virtual plane parallel to the fourth portion 512 is provided, so that the orthographic projection of the second groove 5141 on the virtual plane is located in the range of the orthographic projection of the first groove 5131 on the virtual plane. Further, a connecting shaft is fixedly arranged between the two side plates 515 at two sides of the second groove 5141, a pulley 516 is sleeved on the periphery of the connecting shaft, the pulley 516 is rotatably connected with the connecting shaft, and the mixing wheel 516 can slide along the sliding rail 5133. Two fixing plates 517 are fixedly arranged on the bottom surface of the sliding table 514 corresponding to the sliding groove 5132, one sides of the two fixing plates 517 away from each other are respectively attached to the side surface of the adjacent side plate 515, a boss 518 is fixedly arranged on the bottom surface of the fixing plate 517, and the boss 518 can slide along the corresponding sliding groove 5132.
Both sides of the slide table 514 are provided with moving brackets 52, and each moving bracket 52 includes a first support plate 521, a second support plate 522, and a second elastic member 523. Wherein, the first supporting plate 521 is located above the second supporting plate 522, the first supporting plate 521 is fixedly connected with one end of the sliding table 514, the second supporting plate 522 is fixedly connected with one end of the extending portion 513, a supporting rod 524 is fixedly disposed between two ends of the second supporting plate 522, a stop bar 525 is disposed at one end of the supporting rod 524 near the fixing component 1, one end of the stop bar 525 is fixedly connected with one end of the first supporting plate 521 near the fixing component 1, and the other end of the stop bar 525 is slidably connected with the supporting rod 524. The outer periphery of the supporting rod 524 is sleeved with a second elastic member 523, one end of the second elastic member 523 is fixedly connected with the barrier strip 525, the other end of the second elastic member is fixedly connected with one end of the second supporting plate 522 far away from the fixing component 1, and the second elastic member 523 in the embodiment is preferably a spring.
Further, referring to fig. 1 and 6, the calibration bar assembly 6 is disposed on the top surface of the slide table 514. The calibration rod assembly 6 includes a calibration rod fixing base 61, a roller fixing base 62, a calibration rod unit fixedly disposed on the calibration rod fixing base 61, and a roller unit fixedly disposed on the roller fixing base 62. The linear direction of the calibration rod unit is parallel to the linear direction of the roller unit, and a gap for the eddy current probe 7 to pass through is arranged between the calibration rod unit and the roller unit. The calibration rod unit comprises a plurality of calibration rods 63 which are uniformly arranged at intervals, the roller unit comprises a plurality of rollers 64 which are uniformly arranged at intervals, and the calibration rods 63 are arranged in one-to-one correspondence with the rollers 64.
When the eddy current probe 7 is in a locking state, one end of the eddy current probe 7, which is far away from the fixed bracket 11, penetrates through a gap between the calibration rod unit and the roller unit so as to limit the eddy current probe 7; when the eddy current probe 7 is in the unlocked state, the other end of the eddy current probe 7 is separated from the gap between the calibration rod unit and the roller unit. That is, the end of the eddy current probe 7 away from the fixing bracket 11 is in the unlocked state except that the end of the eddy current probe 7 away from the fixing bracket 11 always penetrates the gap between the calibration rod unit and the roller unit, and before the eddy current probe 7 starts to inspect the fuel assembly, the induction coil on the eddy current probe 7 is located between the end of the eddy current probe 7 fixedly connected with the fixing bracket 11 and one calibration rod 63 and/or roller 64 close to the fixing bracket 11, so that the induction coil on the eddy current probe 7 can smoothly move from between one calibration rod 63 close to the fixing bracket 11 and the roller 64 gradually to between one calibration rod 63 far from the fixing bracket 11 and the roller 64 when the eddy current probe 7 starts to move to inspect, and the induction coil on the eddy current probe 7 can sequentially sense the first calibration rod 63 (one calibration rod 63 close to the fixing bracket 11), the second calibration rod 63 until the last calibration rod (one calibration rod 63 far from the fixing bracket 11).
In addition, the roller bushing 65 is sleeved on the periphery of each roller 64, the roller bushing 65 can rotate around the roller 64, if the vortex probe 7 contacts the roller bushing 65 in the moving process, rolling friction can be generated between the vortex probe 7 and the roller bushing, the friction force generated by the friction is small, the movement of the vortex probe 7 is not greatly hindered, and the influence on the measurement result can be avoided. In addition, the size of the gap between the calibration rod unit and the roller unit is adjustable, by slidably arranging the roller fixing seat 62 on the calibration rod fixing seat 61, the position of the roller fixing seat 62 on the calibration rod fixing seat 61 is adjusted according to the thickness of a specific eddy current probe 7, and after the position is confirmed, the roller fixing seat 62 is fixed on the calibration rod fixing seat 61 through a screw, so that the position of the roller fixing seat 62 can be properly adjusted each time when different eddy current probes 7 are used for inspection, and the size of the gap between the calibration rod unit and the roller unit is adjusted.
In the actual detection process, the fuel assembly is located at the front part of the detection end of the vortex probe 7 and is fixed in position, the vortex probe 7 needs to pass through the thickness direction of the whole fuel assembly until the end of the vortex probe 7 far away from the fixed assembly 1 is exposed during the detection to detect the thickness of the oxide film of the fuel assembly, and for certain field structural environments and detection areas, in the process that the vortex probe 7 moves to approach the fuel assembly, the fixed bracket 11 may be in contact with the left side of the calibration rod assembly 6, and the end (the detection end of the vortex probe 7) of the vortex probe 7 far away from the fixed bracket still does not completely pass through the fuel assembly, which may result in incomplete detection data of the vortex probe 7. Therefore, the guiding compensation mechanism 5 is arranged, so that in the process of moving the eddy current probe 7 to approach the fuel assembly, when the fixed support 11 moving to the eddy current probe 7 touches the calibration rod assembly 6, the fixed support 11 is driven to move forward continuously to push the calibration rod assembly 6 to move forward, and then the sliding table 514 is driven to slide forward, so that the eddy current probe 7 can move forward continuously for a certain distance, the stroke of the eddy current probe 7 is increased, the detection end of the eddy current probe 7 can pass through the fuel assembly completely, the measurement of the full thickness range of the fuel assembly is completed, and the accuracy of the detection result is ensured. The movable support 52 on the guiding compensation mechanism 5 is arranged so that when the eddy current probe 7 pushes the sliding table 514 to move forward, the first supporting plate 521 is driven to move so as to compress the second elastic element 523; when the eddy current probe 7 retreats to the fixed support 11 to be separated from the calibration rod assembly 6, the compressed second elastic piece 523 can rebound, so that the first support plate 521 and the sliding table 514 are driven to reset, and the guiding compensation mechanism 5 can normally play a role when the next checking work is performed.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (15)
1. The eddy current probe clamping device is characterized by comprising a fixing component, a base, an unlocking mechanism, a protection mechanism, a calibration rod component and a guide compensation mechanism, wherein the base is fixedly connected with the protection mechanism, the calibration rod component is arranged at the top of the guide compensation mechanism, the calibration rod component comprises a calibration rod unit and a roller unit, one end of the eddy current probe is fixedly connected with the fixing component, the eddy current probe is in a locking state and an unlocking state, when the eddy current probe is in the locking state, the fixing component is fixedly connected with the base, and the other end of the eddy current probe penetrates through a gap between the calibration rod unit and the roller unit; when the eddy current probe is in the unlocking state, the fixing component is separated from the base, and the other end of the eddy current probe is separated from a gap between the calibration rod unit and the roller unit; the unlocking mechanism is used for separating the fixing assembly from the base, the guide compensation mechanism is used for prolonging the moving distance of the eddy current probe, and the protection mechanism is used for sending out a response signal to stop the eddy current probe when the friction force between the eddy current probe and the fuel assembly is greater than the pretightening force set by the protection mechanism.
2. The eddy current probe clamping device according to claim 1, wherein: the fixing assembly comprises a fixing bracket, a top cover and a containing part, one end of the eddy current probe is fixedly connected with the fixing bracket, the fixing bracket is fixedly connected with the top cover, the top cover is connected with the top of the containing part, a first containing cavity is formed in the containing part, and part of the unlocking mechanism is located in the first containing cavity; the base is provided with a second accommodating cavity, and the accommodating part is positioned in the second accommodating cavity and detachably connected with the base.
3. The eddy current probe clamping device according to claim 2, wherein: the unlocking mechanism comprises a first gear shaft, a first gear and a second gear, wherein the first gear and the second gear are arranged at the bottom of the first gear shaft, the first gear is positioned above the second gear, and the first gear and the second gear are fixedly connected with the first gear shaft; the unlocking mechanism further comprises a first rack, a second gear shaft, a third gear and a fourth gear, wherein the third gear and the second gear are arranged on the second gear shaft, the third gear is meshed with the first gear and the second gear, the first rack is meshed with the second gear, and the second rack is meshed with the fourth gear.
4. An eddy current probe holding apparatus as claimed in claim 3 wherein: the one end of first rack is fixed to be provided with the head rod, the one end of second rack is fixed to be provided with the second connecting rod, works as vortex probe is in when locking state, the one end of head rod and the one end of second connecting rod all run through behind the lateral wall of holding portion with the lateral wall of base is connected.
5. An eddy current probe holding apparatus as claimed in claim 3 wherein: the top of the first gear shaft is provided with a first rotating piece, a first protection cylinder is arranged outside the first rotating piece, and the first rotating piece is positioned above the top cover; and a lifting hook is fixedly arranged on the top cover.
6. An eddy current probe holding apparatus as claimed in claim 3 wherein: the unlocking mechanism further comprises a jacking component, the jacking component comprises a screw rod, a sliding block, a bearing and a limiting frame, the bearing is arranged at the bottom of the screw rod and located below the sliding block, the screw rod penetrates through the thickness direction of the sliding block and is rotationally connected with the sliding block, and one end, far away from the screw rod, of the sliding block penetrates through the thickness direction of the side wall of the base and is located below the accommodating part; the top of lead screw is provided with the second and rotates the piece, the outside of second rotates the piece is provided with the second protection section of thick bamboo.
7. The eddy current probe clamping apparatus according to claim 6, wherein: a limiting block is arranged on one side, close to the jacking component, of the base, and comprises a bottom plate and limiting plates arranged at two ends of the bottom plate, wherein the distance between the two limiting plates is equal to the width of the sliding block; the limiting frame is fixedly arranged at the top of the limiting block, and the jacking component is used for pushing the fixing component to move upwards so as to be separated from the base.
8. The eddy current probe clamping device according to claim 1, wherein: the protection mechanism comprises a sensor, a sensor mounting plate, a sensor trigger plate, fixed blocks fixedly arranged at two ends of the sensor mounting plate and a moving plate slidably arranged between the two fixed blocks, wherein the sensor is fixedly connected with the sensor mounting plate, and the moving plate is fixedly connected with the base; the movable plate comprises a first part and second parts positioned at two ends of the first part, a connecting plate is arranged between the two second parts, a first sliding rod is arranged between the two fixed blocks, and the two second parts are respectively and slidably connected with the two first sliding rods.
9. The eddy current probe clamping apparatus according to claim 8, wherein: a second sliding rod is further arranged between the two first sliding rods, a first elastic piece is sleeved on the outer wall of the second sliding rod, the first elastic piece is positioned between one fixed block and the connecting plate, one end of the first elastic piece is fixedly connected with one fixed block far away from the guide compensation mechanism, and the other end of the first elastic piece is fixedly connected with the connecting plate; the length of the moving plate is smaller than the distance between the two fixed blocks.
10. The eddy current probe clamping apparatus according to claim 8, wherein: the sensor trigger plate is fixedly arranged on one side, close to the trigger end of the sensor, of the second portion, and the inner side face of the sensor trigger plate is in contact with the trigger end of the sensor.
11. An eddy current probe holding apparatus as claimed in claim 3 wherein: the guide compensation mechanism comprises a sliding table assembly and moving brackets arranged on two sides of the sliding table assembly, the sliding table assembly comprises a fixed table and a sliding table which is in sliding connection with the top of the fixed table, the fixed table comprises a third part and two fourth parts which are fixedly arranged at two ends of the third part, the third parts are perpendicular to the fourth parts, each top end of each fourth part is fixedly provided with an extension part, a first groove is formed in each extension part, the top surface of each extension part is provided with a bottom surface, the length of each first groove is equal to that of each extension part, and the height of each first groove is smaller than that of each extension part.
12. The eddy current probe clamping apparatus according to claim 11, wherein: the tops of one sides of the two extending parts, which are close to each other, are provided with sliding grooves, and the length direction of each sliding groove is parallel to the length direction of each extending part; the bottom at slip table both ends has all been seted up the second recess, the second recess is offered to the top surface by the bottom surface of slip table, the length of second recess equals the width of slip table, the height of second recess is less than the height of slip table, the second recess corresponds first recess setting, and every the both sides of second recess are all fixed to be provided with the curb plate, the curb plate by the bottom surface downwardly extending of slip table.
13. The eddy current probe clamping apparatus according to claim 12, wherein: the distance between the two side plates on two sides of the second groove is equal to the width of the second groove and smaller than the width of the first groove, a connecting shaft is fixedly arranged between the two side plates on two sides of the second groove, a pulley is sleeved on the periphery of the connecting shaft and is rotationally connected with the connecting shaft, a sliding rail for sliding the pulley is arranged at the bottom of the first groove, two fixing plates are fixedly arranged on the bottom surface of the sliding table corresponding to the sliding groove, one side, away from each other, of each fixing plate is attached to the side surface of the adjacent side plate, a boss is fixedly arranged on the bottom surface of each fixing plate, and the sliding groove is used for sliding the boss; and setting a virtual plane parallel to the fourth part, wherein the orthographic projection of the second groove on the virtual plane is positioned in the orthographic projection range of the first groove on the virtual plane.
14. The eddy current probe clamping apparatus according to claim 12, wherein: each movable support comprises a first support plate, a second support plate and a second elastic piece, wherein the first support plate is positioned above the second support plate, the first support plate is fixedly connected with one end of the sliding table, the second support plate is fixedly connected with one end of the extending part, a support rod is fixedly arranged between two ends of the second support plate, one end, close to the fixing assembly, of the support rod is provided with a barrier strip, one end, close to the fixing assembly, of the first support plate is fixedly connected with one end, close to the fixing assembly, of the first support plate, and the other end of the barrier strip is in sliding connection with the support rod; the periphery cover of bracing piece is equipped with the second elastic component, the one end of second elastic component with blend stop fixed connection, the other end of second elastic component with the one end fixed connection that the second backup pad kept away from fixed subassembly.
15. The eddy current probe clamping apparatus according to claim 12, wherein: the calibration rod assembly is arranged on the top surface of the sliding table, the calibration rod assembly further comprises a calibration rod fixing seat and a roller fixing seat, the calibration rod unit is arranged on the calibration rod fixing seat, the roller unit is arranged on the roller fixing seat, the linear direction of the calibration rod unit is parallel to the linear direction of the roller unit, the calibration rod unit comprises a plurality of calibration rods which are uniformly arranged at intervals, the roller unit comprises a plurality of rollers which are uniformly arranged at intervals, a roller bushing is sleeved on the periphery of the roller, and the calibration rods are arranged in one-to-one correspondence with the rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311534730.5A CN117723626A (en) | 2023-11-17 | 2023-11-17 | Clamping device for eddy current probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311534730.5A CN117723626A (en) | 2023-11-17 | 2023-11-17 | Clamping device for eddy current probe |
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| CN117723626A true CN117723626A (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311534730.5A Pending CN117723626A (en) | 2023-11-17 | 2023-11-17 | Clamping device for eddy current probe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118066987A (en) * | 2024-04-19 | 2024-05-24 | 中国空气动力研究与发展中心超高速空气动力研究所 | Automatic temperature-sensitive paint film thickness measurement electrical control system and electrical control method |
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2023
- 2023-11-17 CN CN202311534730.5A patent/CN117723626A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118066987A (en) * | 2024-04-19 | 2024-05-24 | 中国空气动力研究与发展中心超高速空气动力研究所 | Automatic temperature-sensitive paint film thickness measurement electrical control system and electrical control method |
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