CN115435723A - Fuel rod measuring device and measuring method - Google Patents
Fuel rod measuring device and measuring method Download PDFInfo
- Publication number
- CN115435723A CN115435723A CN202211147933.4A CN202211147933A CN115435723A CN 115435723 A CN115435723 A CN 115435723A CN 202211147933 A CN202211147933 A CN 202211147933A CN 115435723 A CN115435723 A CN 115435723A
- Authority
- CN
- China
- Prior art keywords
- diameter
- measuring
- calibration
- thickness
- oxide film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a fuel rod measuring device and a measuring method, wherein the fuel rod measuring device comprises a plurality of calibration rods, a thickness measuring mechanism, a diameter measuring mechanism and a first power mechanism, the calibration rods comprise oxide film samples and diameter samples which are arranged in parallel, the sizes of the oxide film samples of any two calibration rods are different, and the sizes of the diameter samples of any two calibration rods are different; the thickness measuring mechanism is used for calculating the thickness of the oxide film of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece and the oxide film thickness measuring parameter; the diameter measuring mechanism is used for calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece and the diameter measuring parameter; the output end of the first power mechanism is connected with the thickness measuring mechanism and the diameter measuring mechanism so as to drive the thickness measuring mechanism and the diameter measuring mechanism to measure simultaneously. The calibration rod or the fuel rod can be measured simultaneously, so that the measurement efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of nuclear industry detection, in particular to a fuel rod measuring device.
Background
With increasing commissioning power stations, fuel safety requirements are increasing, and the requirement for detecting the robustness of the assembly is increasing, and the thickness and the diameter of the oxide film of the fuel rod are key factors reflecting the robustness of the fuel rod. The fuel rod works in boric acid water with high radiation and high temperature for a long time, an oxide film is inevitably formed on the surface of the fuel rod due to environmental influence, and the diameter of the fuel rod is influenced by local deformation, so that the re-stacking of an assembly is influenced. Therefore, the measurement of the thickness and the diameter of the oxide film of the fuel rod at regular intervals is very important for guaranteeing the nuclear safety.
The measurement probe needs to be calibrated before the measurement is carried out to realize accurate measurement. At present, the calibration before the measurement of the oxide film and the diameter of the fuel rod is independent, and the independent calibration and measurement can prolong the measurement time and influence the key path of overhaul.
Disclosure of Invention
In view of this, it is necessary to provide a fuel rod measuring device in order to solve the problem that the calibration time for the oxide film and diameter of the fuel rod is long.
A fuel rod measurement device, comprising:
the calibration rod comprises a plurality of oxide film samples and diameter samples which are arranged in parallel, the sizes of the oxide film samples of any two calibration rods are different, and the sizes of the diameter samples of any two calibration rods are different;
the thickness measuring mechanism is used for measuring the calibration rod to obtain an oxide film thickness calibration parameter, measuring the fuel rod to obtain an oxide film thickness measurement parameter, and calculating the oxide film thickness of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece and the oxide film thickness measurement parameter;
the diameter measuring mechanism is used for measuring the calibration rod to obtain a diameter calibration parameter, measuring the fuel rod to obtain a diameter measurement parameter, and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece and the diameter measurement parameter; and
the output end of the first power mechanism is connected with the thickness measuring mechanism and the diameter measuring mechanism so as to drive the thickness measuring mechanism and the diameter measuring mechanism to measure simultaneously.
In one embodiment, the thickness measuring mechanism is provided with a thickness measuring probe, the diameter measuring mechanism is provided with a diameter measuring clamping jaw, the thickness measuring probe is arranged corresponding to the position of the oxidation film sample piece, and the diameter measuring clamping jaw is arranged corresponding to the position of the diameter sample piece.
In one embodiment, a first axial positioning device is arranged at one end of the thickness measuring mechanism close to the contact of the calibration rod.
In one embodiment, a second axial positioning device is arranged at one end of the diameter measuring mechanism close to the calibration rod.
In one embodiment, the fuel rod measuring device further comprises a floating measuring platform, the thickness measuring mechanism is movably connected with the floating measuring platform along the direction perpendicular to the axis of the first power mechanism, and the diameter measuring mechanism is connected with the thickness measuring mechanism;
the output end of the first power mechanism is connected to the floating measurement platform.
In one embodiment, a sliding rail is arranged at the bottom of the thickness measuring mechanism along a direction perpendicular to the axis of the first power mechanism, and a sliding block is arranged at the top of the floating measuring platform and can be slidably mounted in the sliding rail.
In one embodiment, the thickness measuring mechanism is provided with a tensioning spring along two sides perpendicular to the axial direction of the first power mechanism, and two ends of the tensioning spring are respectively connected with the thickness measuring mechanism and the floating measuring platform.
In one embodiment, the diameter measuring mechanism is located at a greater distance from the calibration bar than the thickness measuring mechanism is located at;
and one end of the diameter measuring mechanism, which is far away from the calibration rod, is provided with a second power mechanism, and the output end of the second power mechanism is connected with the diameter measuring mechanism so that the diameter measuring mechanism can move along the axis direction of the diameter measuring mechanism.
In one embodiment, the fuel rod measuring device further comprises a control system, the first power mechanism is provided with a pressure valve, and the pressure valve and the first power mechanism are both electrically connected with the control system;
the control system is configured to control the first power mechanism to move a preset distance in a direction away from the calibration rod when the pressure of the pressure valve reaches a preset value.
A method of gauging for use with the fuel rod gauging apparatus described above, the method comprising the steps of:
controlling the thickness measuring mechanism to sequentially measure the thickness of the oxide films of the plurality of calibration rods, and simultaneously controlling the diameter measuring mechanism to sequentially measure the diameters of the plurality of calibration rods;
obtaining an oxide film thickness calibration parameter according to the result of the thickness measuring mechanism measuring the plurality of calibration rods, and obtaining a diameter calibration parameter according to the result of the diameter measuring mechanism measuring the plurality of calibration rods;
controlling the thickness measuring mechanism and the diameter measuring mechanism to simultaneously carry out oxide film thickness measurement and diameter measurement on the fuel rod, and acquiring an oxide film thickness measuring parameter and a diameter measuring parameter;
calculating the thickness of the oxide film of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece and the oxide film thickness measurement parameter;
and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece and the diameter measurement parameter.
The fuel rod measuring device comprises the calibration rods, a thickness measuring mechanism, a diameter measuring mechanism and a first power mechanism, wherein the calibration rods comprise oxide film sample pieces and diameter sample pieces, the sizes of the oxide film sample pieces of any two calibration rods are different, the sizes of the diameter sample pieces of any two calibration rods are different, and the output end of the first power mechanism is connected with the thickness measuring mechanism and the diameter measuring mechanism.
When the thickness and the diameter of the oxide film of the fuel rod are measured, firstly, the thickness and the diameter of the oxide film of the calibration rod are measured, the first power mechanism is started, the diameter measuring mechanism and the thickness measuring mechanism can be driven to move and approach one of the calibration rods until the thickness measuring mechanism and the diameter measuring mechanism are contacted with the calibration rod, then, the thickness measuring mechanism and the diameter measuring mechanism respectively measure the thickness and the diameter of the oxide film of the calibration rod, the thickness calibration parameter and the diameter calibration parameter of the oxide film are obtained, the plurality of calibration rods are sequentially measured through the thickness measuring mechanism and the diameter measuring mechanism, the thickness calibration parameter and the diameter calibration parameter of the oxide film of each calibration rod are obtained until all the calibration rods are completely measured.
The method comprises the steps that a first power mechanism is started, a diameter measuring mechanism and a thickness measuring mechanism are driven to move through the first power mechanism and approach to a fuel rod, the fuel rod is measured through the thickness measuring mechanism and the diameter measuring mechanism, an oxide film thickness measuring parameter and a diameter measuring parameter are obtained, the diameter measuring mechanism calculates the diameter of the fuel rod according to a diameter calibration parameter, the size of a diameter sample piece and the diameter measuring parameter, and the thickness measuring mechanism calculates the oxide film thickness of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece and the oxide film thickness measuring parameter.
Because the thickness measuring mechanism and the diameter measuring mechanism are both connected with the output end of the first power mechanism, the thickness measuring mechanism and the diameter measuring mechanism can be driven by the first power mechanism to move integrally, and the thickness measuring mechanism and the diameter measuring mechanism can measure the calibration rod or the fuel rod simultaneously, so that the measuring time of the calibration rod or the fuel rod is shortened, and the measuring efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a calibration rod of the fuel rod measurement device provided by the invention;
FIG. 2 is a schematic structural view of a thickness measuring mechanism and a diameter measuring mechanism of the fuel rod measuring device provided by the present invention;
FIG. 3 is a schematic view of a diameter measuring mechanism of the fuel rod measuring device provided by the present invention;
fig. 4 is a measurement schematic diagram of a diameter measurement mechanism of the fuel rod measurement device provided by the invention.
In the figure: 1. calibrating the rod; 2. oxidizing the film sample; 3. a diameter sample; 4. a calibration rod fixing mechanism; 5. a diameter measuring mechanism; 6. a thickness measuring mechanism; 7. a first axial positioning device; 8. a second axial positioning device; 9. a second power mechanism; 10. a floating measurement platform; 11. a first power mechanism; 12. tensioning the spring; 13. a diameter measuring jaw; 14. a thickness measuring probe; 15. a slide rail; 16. a slider; 17. a diameter measuring probe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
A fuel rod measuring device, referring to fig. 1 and 2, in some embodiments, the fuel rod measuring device includes a plurality of calibration rods 1, a thickness measuring mechanism 6, a diameter measuring mechanism 5, and a first power mechanism 11, the calibration rods 1 are provided in number, the calibration rods 1 include an oxide film sample 2 and a diameter sample 3, which are arranged in parallel, wherein the oxide film samples 2 of any two calibration rods 1 are different in size, and the diameter samples 3 of any two calibration rods 1 are different in size; the thickness measuring mechanism 6 is used for measuring the calibration rod 1 to obtain an oxide film thickness calibration parameter, measuring the fuel rod to obtain an oxide film thickness measurement parameter, and calculating the oxide film thickness of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece 2 and the oxide film thickness measurement parameter; the diameter measuring mechanism 5 is used for measuring the calibration rod 1 to obtain a diameter calibration parameter, measuring the fuel rod to obtain a diameter measurement parameter, and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece 3 and the diameter measurement parameter; the output end of the first power mechanism 11 is connected with the thickness measuring mechanism 6 and the diameter measuring mechanism 5 so as to drive the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to measure simultaneously.
Specifically, mark stick 1 and include oxide film appearance 2 and diameter appearance 3, oxide film appearance 2 and the coaxial setting of diameter appearance 3, and diameter appearance 3 locates the upper end of oxide film appearance 2, and three are markd stick 1 and transversely set up side by side, and on three are markd stick 1 and all are fixed in and are markd excellent fixed establishment 4, the size of every oxide film appearance 2 of marking stick 1 is different, the size of every diameter appearance 3 of marking stick 1 is different.
The first power mechanism 11 is a first cylinder so that the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can move in the axial direction of the first cylinder.
The thickness measuring mechanism 6 and the diameter measuring mechanism 5 are electrically connected with a control system for calculating the thickness and the diameter of the oxide film.
When the oxide film thickness and the diameter of a fuel rod are measured, firstly, the oxide film thickness and the diameter of a calibration rod 1 need to be measured, a first air cylinder is started, the first air cylinder can drive a thickness measuring mechanism 6 and a diameter measuring mechanism 5 to move along the axial direction of the first air cylinder and approach to one calibration rod 1, the first air cylinder stops until the thickness measuring mechanism 6 and the diameter measuring mechanism 5 contact with the calibration rod 1, at the moment, the thickness measuring mechanism 6 contacts with an oxide film sample piece 2 of the calibration rod 1 and obtains the oxide film thickness calibration parameter, the diameter measuring mechanism 5 contacts with a diameter sample piece 3 of the calibration rod 1 and obtains the diameter calibration parameter, meanwhile, the thickness measuring mechanism 6 and the diameter measuring mechanism 5 feed back the oxide film thickness calibration parameter and the diameter calibration parameter to a control system, the three calibration rods 1 are sequentially measured through the thickness measuring mechanism 6 and the diameter measuring mechanism 5, and the oxide film thickness calibration parameter and the diameter calibration parameter of each calibration rod 1 are fed back to the control system until all the calibration rods 1 are measured.
Because the size of each calibration rod 1 is different, and the sizes of the calibration rods 1 are known data, the control system can process to obtain an algorithm of the thickness of the oxide film and an algorithm of the diameter according to the calibration parameters of the thickness of the oxide film, the diameter and the size of the calibration rods 1.
And starting the first air cylinder, driving the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to move and approach to the fuel rod through the first air cylinder, measuring the fuel rod through the thickness measuring mechanism 6 and the diameter measuring mechanism 5, feeding back the obtained thickness measuring parameter and the diameter measuring parameter of the oxide film to the control system, and calculating by the control system according to the thickness measuring parameter and the diameter measuring parameter of the oxide film and the obtained algorithm to obtain the actual thickness and the actual diameter of the oxide film of the fuel rod.
Because the thickness measuring mechanism 6 and the diameter measuring mechanism 5 are both connected with the output end of the first power mechanism 11, the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can be driven to integrally move by the first cylinder, and the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can measure the calibration rod 1 or the fuel rod at the same time, so that the measuring time of the calibration rod 1 or the fuel rod is shortened, and the measuring efficiency is improved.
Alternatively, the first power mechanism 11 may also be a motor cooperating with a ball screw, or have another structure.
In some embodiments, the thickness measuring mechanism 6 has a thickness measuring probe 14, the diameter measuring mechanism 5 has a diameter measuring jaw 13, the thickness measuring probe 14 is disposed corresponding to the position of the oxide film sample 2, and the diameter measuring jaw 13 is disposed corresponding to the position of the diameter sample 3.
Specifically, the diameter measuring mechanism 5 is installed above the thickness measuring mechanism 6, that is, the diameter measuring clamping jaw 13 is installed above the thickness measuring probe 14, the diameter measuring probe 17 is transversely installed behind the diameter measuring mechanism 5, and the diameter measuring probe 17 is connected with the diameter measuring clamping jaw 13, the diameter sample 3 and the oxide film sample 2 are coaxially arranged, and the diameter sample 3 is installed above the oxide film sample 2, so that the position of the thickness measuring probe 14 of the thickness measuring mechanism 6 corresponds to the position of the oxide film sample 2 in the calibration rod 1, and the position of the diameter measuring clamping jaw 13 of the diameter measuring mechanism 5 corresponds to the position of the diameter sample 3 in the calibration rod 1.
The position of the thickness measuring probe 14 corresponds to the position of the oxide film sample 2 in the calibration rod 1, the position of the diameter measuring clamping jaw 13 corresponds to the position of the diameter sample 3 in the calibration rod 1, and the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can be directly moved to the calibration rod 1 for measurement, so that the calibration efficiency of the calibration rod 1 and the measurement efficiency of the fuel rod are further improved.
In addition, the diameter measuring probe 17 is arranged at the rear end of the diameter measuring mechanism 5, so that the influence of irradiation on the diameter measuring probe 17 can be reduced, and simultaneously, the amplified measurement data delta b is obtained according to L1, L2 and delta a by the change of the gap distance when the left and right diameter measuring clamping jaws 13 are positioned at the initial position and the measuring position by utilizing the lever principle, so that the accuracy of the measurement result is improved.
Alternatively, the diameter measuring mechanism 5 may be provided below the thickness measuring mechanism 6, and the diameter sample 3 may be provided at the lower end of the oxide film sample 2.
In some embodiments, the end of the thickness measuring mechanism 6 near the contact of the calibration rod 1 is provided with a first axial positioning device 7.
Specifically, the first axial positioning device 7 is a roller, a circle of grooves are formed in the periphery of the roller, the thickness measuring probe 14 is arranged at one end, close to the calibration rod 1, of the thickness measuring mechanism 6, and the roller is also arranged at one end, close to the calibration rod 1, of the thickness measuring mechanism 6 and is longitudinally arranged with the thickness measuring probe 14.
When the first power mechanism 11 drives the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to measure the calibration rod 1, the groove of the roller is aligned with the oxide film sample 2, and when the thickness measuring probe 14 is in contact with the oxide film sample 2, the oxide film sample 2 is located in the groove of the roller.
When the thickness measuring probe 14 inclines, the roller and the thickness measuring probe 14 incline together, and when the thickness measuring mechanism 6 is continuously close to the calibration rod 1 and gradually contacts with the oxide film sample 2, the roller and the thickness measuring probe 14 return to the original position under the action of the acting force between the roller and the oxide film sample 2.
Through the setting of first axial positioner 7, can guarantee the straightness that hangs down between thickness measurement probe 14 and the oxidation film exemplar 2 to guarantee thickness measurement probe 14's measurement accuracy.
In addition, the upper part and the lower part of the thickness measuring probe 14 are respectively provided with a roller, and because the length of the oxide film sample 2 in the calibration rod 1 is greater than that of the diameter sample 3, two rollers are arranged for axially positioning the thickness measuring probe 14, so that the accuracy of the axially positioning of the thickness measuring probe 14 can be improved, the verticality between the thickness measuring probe 14 and the oxide film sample 2 and the accuracy of the measurement of the thickness measuring probe 14 are further ensured, and optionally, other quantities of first positioning devices can be arranged.
Alternatively, the first axial positioning device 7 may be a clamp or other structure similar to a roller.
In some embodiments, the end of the diameter measuring means 5 close to the calibration rod 1 is provided with a second axial positioning means 8.
Specifically, the second axial positioning device 8 is also a roller, a circle of grooves are formed in the periphery of the roller, the diameter measuring clamping jaw 13 is arranged at one end, close to the calibration rod 1, of the diameter measuring mechanism 5, and the roller is also arranged at one end, close to the calibration rod 1, of the diameter measuring mechanism 5 and is longitudinally arranged with the diameter measuring clamping jaw 13.
When the diameter measuring clamping jaw 13 inclines, the roller and the diameter measuring clamping jaw 13 incline together, and when the diameter measuring mechanism 5 is continuously close to the calibration rod 1 and gradually clamps the diameter sample 3, the roller and the diameter measuring clamping jaw 13 are aligned together under the action force between the roller and the diameter sample 3.
Through the setting of second axial positioner 8, can guarantee the straightness that hangs down between diameter measurement clamping jaw 13 and the diameter appearance piece 3 to guarantee the measurement accuracy of diameter measurement clamping jaw 13.
Alternatively, the second axial positioning device 8 may be a clamp or other structure similar to a roller.
In some embodiments, the fuel rod measuring device further comprises a floating measuring platform 10, the thickness measuring mechanism 6 is movably connected with the floating measuring platform 10 along the direction perpendicular to the axis of the first power mechanism 11, and the diameter measuring mechanism 5 is connected with the thickness measuring mechanism 6;
the output end of the first power mechanism 11 is connected to the floating measuring platform 10.
Specifically, floating measurement platform 10 is wholly the cuboid structure, and floating measurement platform 10's left side is connected with first power unit 11, and floating measurement platform 10's bottom is equipped with the guide rail to floating measurement platform 10's removal is convenient for. The thickness measuring mechanism 6 is installed on the floating measuring platform 10, the diameter measuring mechanism 5 is installed on the thickness measuring mechanism 6, the thickness measuring mechanism 6 and the floating measuring platform 10 are movably connected in the direction perpendicular to the axis direction of the first cylinder, the side portion of the thickness measuring mechanism 6 is connected with a third power mechanism, the third power mechanism can drive the thickness measuring mechanism 6 to move in the direction perpendicular to the axis direction of the first cylinder, and namely the thickness measuring mechanism 6 can move in the direction in which the three calibration rods 1 are arranged.
After the thickness measuring mechanism 6 and the diameter measuring mechanism 5 measure the first calibration rod 1, the third power mechanism is started, the third power mechanism drives the thickness measuring mechanism 6 to transversely move to the position of the next calibration rod 1, and simultaneously drives the diameter measuring mechanism 5 arranged above the thickness measuring mechanism 6 to the position of the next calibration rod 1, so that the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can complete the measurement of the three calibration rods 1.
The thickness measuring mechanism 6 and the diameter measuring mechanism 5 can move along the arrangement direction of the three calibration rods 1 through the movable connection of the thickness measuring mechanism 6 and the floating measuring platform 10, so that the measurement of the three calibration rods 1 is completed in sequence.
Alternatively, the floating measurement platform 10 may be a structure of other shapes.
In some embodiments, the bottom of the thickness measuring mechanism 6 is provided with a slide rail 15 along a direction perpendicular to the axis of the first power mechanism 11, and the top of the floating measuring platform 10 is provided with a slide block 16, and the slide block 16 is slidably mounted in the slide rail 15.
Specifically, the bottom of the thickness measuring mechanism 6 is provided with a slide rail 15, the top of the floating measuring platform 10 is provided with a slide block 16, the slide block 16 is installed in the slide rail 15, the thickness measuring mechanism 6 and the floating measuring platform 10 are connected in a slide rail 15 and slide block 16 mode, the structure is simple, the thickness measuring mechanism 6 can be limited to move along the axis direction of the first cylinder, and the situation that the thickness measuring probe 14 is not in contact with the calibration rod 1 due to the fact that the thickness measuring mechanism 6 moves in the measuring process is avoided.
Alternatively, wheels may be provided at the bottom of the thickness measuring mechanism 6, or the thickness measuring mechanism 6 may be movably connected to the floating measuring platform 10 by other means.
In some embodiments, the thickness measuring mechanism 6 is provided with a tensioning spring 12 along two sides perpendicular to the axial direction of the first power mechanism 11, and two ends of the tensioning spring 12 are respectively connected with the thickness measuring mechanism 6 and the floating measuring platform 10.
Specifically, two sides of the thickness measuring mechanism 6 are provided with a tension spring 12, one end of the tension spring 12 is fixedly connected with the thickness measuring mechanism 6, and the other end is fixedly connected with the floating measuring platform 10 through a support rod.
When the thickness measuring mechanism 6 and the diameter measuring mechanism 5 measure the calibration rod 1 or the fuel rod, and the first axial positioning device 7, the thickness measuring probe 14 and the oxide film sample 2 have small radial deviation, and the second axial positioning device 8, the diameter measuring clamping jaw 13 and the diameter sample 3 have small radial deviation, one side of the groove of the first axial positioning device 7 is in contact with the oxide film sample 2, one side of the groove of the second axial positioning device 8 is in contact with the diameter sample 3, because the calibration rod 1 and the fuel rod are fixed, and the side surface of the groove of the roller is an inclined surface, the thickness measuring mechanism 6 and the diameter measuring mechanism 5 move along the axial direction perpendicular to the first cylinder under the action of the side surface of the groove and the calibration rod 1 or the fuel rod, so that the calibration rod 1 or the fuel rod can be positioned in the middle of the groove, at this time, the tension spring 12 on one side of the thickness measuring mechanism 6 is compressed, the tension spring 12 on the other side is extended, and after the measurement, the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can return to the initial position under the action of the resilience force of the tension springs 12 on both sides.
The thickness measuring probe 14 and the diameter measuring clamping jaw 13 can be ensured to be accurately contacted with the calibration rod 1 or the fuel rod and measure through the arrangement of the tension spring 12, and the transverse errors between the thickness measuring mechanism 6 and the diameter measuring mechanism 5 and the calibration rod 1 or the fuel rod are compensated.
In some embodiments, the diameter measuring means 5 is at a greater distance from the calibration bar 1 than the thickness measuring means 6 is at from the calibration bar 1, and;
one end of the diameter measuring mechanism 5, which is far away from the calibration rod 1, is provided with a second power mechanism 9, and the output end of the second power mechanism 9 is connected with the diameter measuring mechanism 5, so that the diameter measuring mechanism 5 can move along the axial direction thereof.
Specifically, the second power mechanism 9 is a second cylinder, an output end of the second cylinder is connected with the diameter measuring mechanism 5, and a distance between the diameter measuring clamping jaw 13 and the calibration rod 1 is greater than a distance between the thickness measuring probe 14 and the calibration rod 1.
When the diameter measuring mechanism 5 and the thickness measuring mechanism 6 measure the calibration rod 1 at the same time, the second cylinder pushes the diameter measuring mechanism 5 to move forwards until the diameter measuring clamping jaw 13 and the thickness measuring probe 14 are aligned in the longitudinal direction, and then the diameter measuring clamping jaw 13 and the thickness measuring probe 14 measure the calibration rod 1 at the same time through the first cylinder; when the calibration rod 1 is measured only by the thickness measuring mechanism 6, the second cylinder does not do telescopic motion, and the diameter measuring clamping jaw 13 is always behind relative to the thickness measuring probe 14, so that only the thickness measuring probe 14 can be contacted with the calibration rod 1 when the first cylinder drives the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to be close to the calibration rod 1; when only the diameter measuring mechanism 5 is needed to measure the calibration rod 1, the second cylinder drives the diameter measuring mechanism 5 to move forwards until the diameter measuring clamping jaw 13 exceeds the position of the thickness measuring probe 14, and at the moment, when the first cylinder drives the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to be close to the calibration rod 1, only the diameter measuring clamping jaw 13 can be in contact with the calibration rod 1.
By arranging the second power mechanism 9 and the distance between the diameter measuring clamping jaw 13 and the calibration rod 1 is larger than the distance between the thickness measuring probe 14 and the calibration rod 1, the thickness measuring mechanism 6 and the diameter measuring mechanism 5 can simultaneously measure the thickness of the oxide film and the diameter of the calibration rod 1 or the fuel rod, and can also independently measure the thickness of the oxide film or the diameter of the calibration rod 1 or the fuel rod, so that the application range of the measuring device provided by the application is expanded.
Alternatively, the second power mechanism 9 may be another mechanism.
In some embodiments, the fuel rod measuring device further includes a control system, the first power mechanism 11 is provided with a pressure valve, and the pressure valve and the first power mechanism 11 are both electrically connected to the control system;
the control system is configured to control the first power mechanism 11 to move a preset distance away from the calibration rod 1 when the pressure of the pressure valve reaches a preset value.
Specifically, a pressure valve is arranged on the first cylinder, and since the calibration rod 1 is fixed, when the thickness measuring mechanism 6 and the diameter measuring mechanism 5 are in contact with the calibration rod 1 and the first cylinder continues to drive the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to move forwards, the calibration rod 1 gives a reaction force to the thickness measuring mechanism 6 and the diameter measuring mechanism 5, meanwhile, the thickness measuring mechanism 6 gives a certain pressure to the floating measuring platform 10 and the first cylinder, and when the pressure valve detects that the pressure given to the first cylinder by the thickness measuring mechanism 6 reaches a preset value, the control system controls the first cylinder to retract for a preset distance.
Through the arrangement of the pressure valve, the contact force of the thickness measuring mechanism 6 and the diameter measuring mechanism 5 on the calibration rod 1 can be ensured within a proper range, and the damage to the calibration rod 1 caused by the excessive pressure applied to the calibration rod 1 is avoided.
Alternatively, pressure sensors or other devices may be provided to control the pressure of the thickness measuring mechanism 6 and the diameter measuring mechanism 5 on the calibration rod 1.
The application also provides a measurement method for a fuel rod measurement device, the method comprising the steps of:
the thickness measuring mechanism 6 is controlled to sequentially measure the thickness of the oxide films of the calibration rods 1, and the diameter measuring mechanism 5 is controlled to sequentially measure the diameters of the calibration rods 1;
obtaining an oxide film thickness calibration parameter according to the result of the thickness measuring mechanism 6 measuring the plurality of calibration rods 1, and obtaining a diameter calibration parameter according to the result of the diameter measuring mechanism 5 measuring the plurality of calibration rods 1;
controlling the thickness measuring mechanism 6 and the diameter measuring mechanism 5 to simultaneously carry out oxide film thickness measurement and diameter measurement on the fuel rod, and acquiring an oxide film thickness measurement parameter and a diameter measurement parameter;
calculating the thickness of the oxide film of the fuel rod according to the thickness calibration parameter of the oxide film, the size of the oxide film sample piece 2 and the thickness measurement parameter of the oxide film;
and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece 3 and the diameter measurement parameter.
The thickness measuring mechanism 6 and the diameter measuring mechanism 5 are controlled by the control system to simultaneously measure the thickness of the oxide film and the diameter of the calibration rod 1 or the fuel rod, so that the measuring time can be shortened, and the measuring efficiency can be improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A fuel rod measurement device, comprising:
the calibration rod (1) comprises a plurality of calibration rods (1), the calibration rods (1) comprise an oxide film sample (2) and a diameter sample (3) which are arranged in parallel, the sizes of the oxide film samples (2) of any two calibration rods (1) are different, and the sizes of the diameter samples (3) of any two calibration rods (1) are different;
the thickness measuring mechanism (6) is used for measuring the calibration rod (1) to obtain an oxide film thickness calibration parameter, measuring the fuel rod to obtain an oxide film thickness measurement parameter, and calculating the oxide film thickness of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece (2) and the oxide film thickness measurement parameter;
the diameter measuring mechanism (5) is used for measuring the calibration rod (1) to obtain a diameter calibration parameter, measuring the fuel rod to obtain a diameter measurement parameter, and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece (3) and the diameter measurement parameter; and
the output end of the first power mechanism (11) is connected with the thickness measuring mechanism (6) and the diameter measuring mechanism (5) so as to drive the thickness measuring mechanism (6) and the diameter measuring mechanism (5) to measure simultaneously.
2. The fuel rod measuring device according to claim 1, characterized in that the thickness measuring mechanism (6) has a thickness measuring probe (14), the diameter measuring mechanism (5) has a diameter measuring jaw (13), the thickness measuring probe (14) is disposed corresponding to a position of the oxide film sample (2), and the diameter measuring jaw (13) is disposed corresponding to a position of the diameter sample (3).
3. Fuel rod measuring device according to claim 1, characterized in that the end of the thickness measuring means (6) close to the contact of the calibration rod (1) is provided with a first axial positioning device (7).
4. Fuel rod measuring device according to claim 3, characterized in that the end of the diameter measuring means (5) close to the calibration rod (1) is provided with a second axial positioning device (8).
5. The fuel rod measuring device of claim 1, further comprising a floating measuring platform (10), wherein the thickness measuring mechanism (6) is movably connected with the floating measuring platform (10) along a direction perpendicular to an axis of the first power mechanism (11), and the diameter measuring mechanism (5) is connected with the thickness measuring mechanism (6);
the output end of the first power mechanism (11) is connected to the floating measuring platform (10).
6. The fuel rod measuring device according to claim 5, characterized in that the bottom of the thickness measuring mechanism (6) is provided with a slide rail (15) along the direction perpendicular to the axis of the first power mechanism (11), the top of the floating measuring platform (10) is provided with a slide block (16), and the slide block (16) is slidably mounted in the slide rail (15).
7. The fuel rod measuring device according to claim 6, characterized in that the thickness measuring mechanism (6) is provided with a tension spring (12) along two sides perpendicular to the axial direction of the first power mechanism (11), and two ends of the tension spring (12) are respectively connected with the thickness measuring mechanism (6) and the floating measuring platform (10).
8. The fuel rod measuring device according to any one of claims 1 to 7, characterized in that the diameter measuring means (5) is at a greater distance from the calibration rod (1) than the thickness measuring means (6) is at from the calibration rod (1), and;
one end, far away from the calibration rod (1), of the diameter measuring mechanism (5) is provided with a second power mechanism (9), and the output end of the second power mechanism (9) is connected with the diameter measuring mechanism (5) so that the diameter measuring mechanism (5) can move along the axis direction of the diameter measuring mechanism.
9. The fuel rod measuring device according to any one of claims 1 to 7, characterized in that it further comprises a control system, the first power mechanism (11) is provided with a pressure valve, and the pressure valve and the first power mechanism (11) are both electrically connected to the control system;
the control system is configured to control the first power mechanism (11) to move a preset distance in a direction away from the calibration rod (1) when the pressure of the pressure valve reaches a preset value.
10. A measurement method for a fuel rod measurement device according to any one of claims 1 to 9, characterized in that the method comprises the steps of:
controlling the thickness measuring mechanism (6) to sequentially measure the thickness of the oxide films of the plurality of calibration rods (1), and simultaneously controlling the diameter measuring mechanism (5) to sequentially measure the diameters of the plurality of calibration rods (1);
obtaining an oxide film thickness calibration parameter according to the result of the thickness measurement mechanism (6) on the plurality of calibration rods (1), and obtaining a diameter calibration parameter according to the result of the diameter measurement mechanism (5) on the plurality of calibration rods (1);
controlling the thickness measuring mechanism (6) and the diameter measuring mechanism (5) to simultaneously perform oxide film thickness measurement and diameter measurement on the fuel rod, and acquiring an oxide film thickness measuring parameter and a diameter measuring parameter;
calculating the thickness of the oxide film of the fuel rod according to the oxide film thickness calibration parameter, the size of the oxide film sample piece (2) and the oxide film thickness measurement parameter;
and calculating the diameter of the fuel rod according to the diameter calibration parameter, the size of the diameter sample piece (3) and the diameter measurement parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147933.4A CN115435723A (en) | 2022-09-20 | 2022-09-20 | Fuel rod measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147933.4A CN115435723A (en) | 2022-09-20 | 2022-09-20 | Fuel rod measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115435723A true CN115435723A (en) | 2022-12-06 |
Family
ID=84249856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211147933.4A Pending CN115435723A (en) | 2022-09-20 | 2022-09-20 | Fuel rod measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115435723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115980178A (en) * | 2022-12-23 | 2023-04-18 | 中国核动力研究设计院 | Fuel rod oxidation film standard sample assembly and preparation method and application thereof |
-
2022
- 2022-09-20 CN CN202211147933.4A patent/CN115435723A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115980178A (en) * | 2022-12-23 | 2023-04-18 | 中国核动力研究设计院 | Fuel rod oxidation film standard sample assembly and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8950268B2 (en) | Material testing machine | |
| CN115435723A (en) | Fuel rod measuring device and measuring method | |
| JP2000258153A (en) | Plane flatness measurement device | |
| CN210036639U (en) | Crystal bar overall dimension measuring device | |
| CN111426247B (en) | Vernier caliper calibrating device | |
| KR20180084113A (en) | Tire characteristic value measuring device and tire characteristic value measuring system | |
| KR101875535B1 (en) | Size checking apparatus for battery case | |
| CN102003940B (en) | Sample automatic centering size measurement device | |
| CN216925477U (en) | Wafer rod detection device | |
| CN209961199U (en) | Automatic cutter detection equipment | |
| WO2024041322A1 (en) | Surface flatness detecting device for single crystal square rod | |
| CN114993192B (en) | Automatic thickness measuring equipment in lithium battery industry | |
| CN106767625B (en) | Measuring rod calibration device and calibration method for calibrating outside micrometer | |
| CN215572752U (en) | Angle error detection device of wedge-shaped long belt | |
| WO2014165013A1 (en) | Method and system for optical camber measurement of flat sheet membranes, films, and webs | |
| CN209820439U (en) | Electricity core thickness measuring device | |
| CN108917515B (en) | Splicing calibration method for indication error of wide-range universal caliper | |
| CN217764723U (en) | Angle deviation detection device suitable for large-scale isosceles square | |
| CN116625189B (en) | Vernier caliper calibrating device | |
| CN218973425U (en) | Multi-station full-automatic waterproof material size change rate measuring system | |
| CN219573000U (en) | Pressure thickness measuring device for square battery | |
| CN218211215U (en) | Glass plate deflection measuring device | |
| CN217637302U (en) | Auxiliary device for workpiece size detection | |
| CN211262144U (en) | Laser straightening machine | |
| CN220461392U (en) | Battery cell thickness measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |