CN216484662U - Inner wall defect detection device for nuclear fuel element cladding tube detection - Google Patents
Inner wall defect detection device for nuclear fuel element cladding tube detection Download PDFInfo
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- CN216484662U CN216484662U CN202122459270.7U CN202122459270U CN216484662U CN 216484662 U CN216484662 U CN 216484662U CN 202122459270 U CN202122459270 U CN 202122459270U CN 216484662 U CN216484662 U CN 216484662U
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Abstract
The utility model discloses an inner wall defect detection device for detecting defects of a nuclear fuel element cladding tube, which comprises a base, a plurality of material guide mechanisms arranged on the base at intervals, a plurality of supporting guide wheel mechanisms arranged on the base at intervals and matched with the material guide mechanisms, a clamping mechanism arranged on the base and matched with the supporting guide wheel mechanisms, an endoscope longitudinal transmission mechanism arranged at one end of the base and corresponding to the supporting guide wheel mechanisms, and an industrial endoscope for detecting the defects of the inner wall of the nuclear fuel element cladding tube. The utility model utilizes a plurality of material guide mechanisms to carry out feeding connection on the long cylindrical nuclear fuel element cladding tube, utilizes a plurality of supporting guide wheel mechanisms to effectively support the cladding tube, simultaneously adopts a clamping mechanism to keep the placing stability of the cladding tube, and then clamps the detection head part of the industrial endoscope by the endoscope longitudinal transmission mechanism to be sent into the inner wall space of the cladding tube for inner wall defect detection, thereby effectively improving the efficiency of the inner wall defect detection of the cladding tube.
Description
Technical Field
The utility model relates to cladding tube detection equipment, in particular to an inner wall defect detection device for nuclear fuel element cladding tube detection.
Background
The detection of the nuclear fuel element cladding tube comprises the detection of the length, the outer diameter, the inner diameter, the wall thickness, the defects of the inner wall and the outer wall of the cladding tube and the like, and the lack of effective automatic means in the current detection is an important research direction for the technicians in the field. For example, in the inner wall defect detection, the inner wall of a long cladding tube is detected by a worker holding an industrial endoscope in sequence, the detection end of the endoscope needs to be continuously plugged into the inner wall of the cladding tube, the operation is very complicated, the detection efficiency is low, the requirement of the existing industrial production cannot be met, and therefore improvement is needed urgently.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides the inner wall defect detection device for detecting the cladding tube of the nuclear fuel element, which is convenient to use and high in detection efficiency.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an inner wall defect detection device for nuclear fuel element cladding pipe detects, including being long banding base, a plurality of intervals settle the guide mechanism that is used for nuclear fuel element cladding pipe material loading on the base, a plurality of intervals settle on the base and with the guide mechanism matching be used for supporting behind the nuclear fuel element cladding pipe material loading support guide wheel mechanism, settle on the base and with support guide wheel mechanism matching be used for the fixed fixture of nuclear fuel element cladding pipe detection time, set up in base one end and with support guide wheel mechanism corresponding endoscope vertical transmission mechanism, and be used for the industry endoscope of nuclear fuel element cladding pipe inner wall defect detection, wherein, the endoscope vertical transmission mechanism sends the measuring head of industry endoscope into the inner wall space of the nuclear fuel element cladding pipe of placing on supporting guide wheel mechanism along the axial.
Furthermore, the material guiding mechanism comprises a material guiding support plate arranged on the base, a material guiding plate connected to the material guiding support plate, and a material guiding part arranged at the upper end of the material guiding plate and used for enabling the nuclear fuel element cladding tube to slide into the supporting guide wheel mechanism after being fed, wherein the material guiding part is inclined from the feeding side to the discharging side.
Further, the material guiding part is composed of a first inclined plane, a second inclined plane and a third inclined plane which are sequentially arranged at the upper end of the material guiding plate, wherein the first inclined plane is used for bearing the nuclear fuel element cladding tube during feeding, and the inclination angle of the second inclined plane is larger than that of the first inclined plane and that of the third inclined plane.
Further, the support guide wheel mechanism comprises a guide wheel support plate arranged on the base, a support wheel shaft arranged on the guide wheel support plate, and a support guide wheel arranged on the support wheel shaft, wherein the support guide wheel is a V-shaped wheel, and a V groove on the support guide wheel is used for supporting the nuclear fuel element cladding tube.
Further, the clamping mechanism comprises a cylinder fixing support connected with the base, a rodless cylinder arranged on the cylinder fixing support and moving along the axial direction of the nuclear fuel element cladding tube, a gas claw mounting plate transversely fixed on the movable end of the rodless cylinder, parallel gas claws arranged on the gas claw mounting plate, and parallel claws respectively arranged on two movable ends of the parallel gas claws and matched with each other for clamping the nuclear fuel element cladding tube, wherein the parallel claws are made of PE materials.
Furthermore, a limiting plate used for limiting the moving position of the rodless cylinder is further arranged on the base.
Furthermore, V-shaped grooves for clamping the cladding tube are formed in the side faces, opposite to the two parallel claws, of the two parallel claws, the V-shaped groove in one parallel claw is configured to be a clamping block, and the V-shaped groove in the other parallel claw is configured to be a clamping groove.
Furthermore, the endoscope longitudinal transmission mechanism comprises a longitudinal transmission base arranged on the base, a longitudinal transmission wheel shaft arranged through the longitudinal transmission base, a longitudinal transmission guide wheel arranged on the longitudinal transmission wheel shaft and corresponding to the support guide wheel mechanism, a longitudinal transmission servo motor arranged on the side face of the longitudinal transmission base through a motor mounting plate, a coupler connected between an output shaft of the longitudinal transmission servo motor and the longitudinal transmission wheel shaft, and a pressing wheel assembly arranged at the upper end of the longitudinal transmission base and matched with the longitudinal transmission wheel, wherein the longitudinal transmission wheel is a V-shaped wheel, and the pressing wheel assembly presses a cable at a detection head of the industrial endoscope arranged in a V groove of the longitudinal transmission wheel to rotate together with the longitudinal transmission wheel so that the detection head axially moves forward or backward in the inner wall space of the nuclear fuel element cladding tube.
Furthermore, the pinch roller assembly comprises a compression guide rod vertically arranged at the upper end of the longitudinal transmission base in parallel, a compression fixing plate arranged on the upper portion of the compression guide rod, a compression cylinder arranged on the compression fixing plate, a compression movable block sleeved on the compression guide rod between the longitudinal transmission base and the compression fixing plate, a pinch roller arranged on the compression movable block through a rotating shaft and matched with the longitudinal transmission wheel, and a spring sleeved on the compression guide rod and positioned between the compression fixing plate and the compression movable block or between the longitudinal transmission base and the compression movable block.
Further, a photoelectric switch for detecting the position of the nuclear fuel element cladding tube is arranged on the base.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model utilizes a plurality of material guide mechanisms to carry out feeding connection on the long cylindrical nuclear fuel element cladding tube, utilizes a plurality of supporting guide wheel mechanisms to effectively support the cladding tube, simultaneously adopts a clamping mechanism to keep the placing stability of the cladding tube, and then clamps the detection head part of the industrial endoscope by the endoscope longitudinal transmission mechanism to be sent into the inner wall space of the cladding tube for inner wall defect detection, thereby effectively improving the efficiency of the inner wall defect detection of the cladding tube. The utility model has the advantages of ingenious design, simple structure and convenient use, and is suitable for being applied to the defect detection of the inner wall of the cladding tube of the nuclear fuel element.
(2) The material guide mechanism is characterized in that the material guide plate is provided with a material guide part, the material guide part is arranged on the material guide plate, and the material guide part can roll and slide to enter a detection position on the supporting guide wheel mechanism by utilizing the gravity of the material guide part after the cladding tube is fed.
(3) The supporting guide wheel mechanism disclosed by the utility model adopts the guide wheel to support the cladding tube, and meanwhile, the clamping mechanism can be convenient to move the position of the cladding tube along the axial direction, the appearance of the cladding tube cannot be damaged, and the convenience of the industrial endoscope detecting head entering the cladding tube is improved.
(4) The endoscope longitudinal transmission mechanism skillfully utilizes the pinch roller and the actively driven longitudinal transmission wheel to clamp the cable of the detection head and then rotates, so that the detection head can conveniently and rapidly advance and retreat in the cladding tube in a controlled manner, the defects of the inner wall of the cladding tube can be conveniently detected, in addition, in order to facilitate the extension and contraction of the cable of the detection head, the corresponding cable guide wheel can be arranged at the lower part of the base or the longitudinal transmission base, and the detection head and the cable thereof can be relatively flexibly arranged according to the practical application condition, so that the use is convenient.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic side view of an embodiment of the present invention.
Fig. 3 is a schematic structural view of an end portion of a base in an embodiment of the present invention.
FIG. 4 is a schematic structural diagram of a clamping mechanism according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an endoscope longitudinal transmission mechanism in the embodiment of the utility model.
Detailed Description
The present invention is further illustrated by the following figures and examples, which include, but are not limited to, the following examples.
Examples
As shown in fig. 1 to 5, the inner wall defect detecting device for detecting the nuclear fuel element cladding tube comprises a long strip-shaped base 1, a plurality of material guiding mechanisms 2 arranged on the base at intervals and used for feeding the nuclear fuel element cladding tube, a plurality of supporting guide wheel mechanisms 3 arranged on the base at intervals and matched with the material guiding mechanisms and used for supporting the nuclear fuel element cladding tube after feeding, a clamping mechanism 20 arranged on the base and matched with the supporting guide wheel mechanisms and used for fixing the nuclear fuel element cladding tube during detection, an endoscope longitudinal transmission mechanism 30 arranged at one end of the base and corresponding to the supporting guide wheel mechanisms, and an industrial endoscope used for detecting the defect of the inner wall of the nuclear fuel element cladding tube, wherein, the endoscope longitudinal transmission mechanism axially sends the detection head of the industrial endoscope into the inner wall space of the nuclear fuel element cladding tube 5 which is arranged on the supporting guide wheel mechanism. The industrial endoscope (not shown in the figures) can adopt the prior art, and the corresponding cable length is configured according to the length of the cladding tube, and the specific construction thereof is not described in detail in the embodiment. The base is provided with a photoelectric switch 4 for detecting the position of the nuclear fuel element cladding tube.
The material guiding mechanism 2 comprises a material guiding supporting plate 6 arranged on the base, a material guiding plate 7 connected to the material guiding supporting plate, and a material guiding part arranged at the upper end of the material guiding plate and used for enabling the nuclear fuel element cladding tube to slide into the supporting guide wheel mechanism after being fed, wherein the material guiding part inclines from the feeding side to the discharging side. Specifically, the material guiding portion is composed of a first inclined surface 8, a second inclined surface 9 and a third inclined surface 10 which are sequentially arranged at the upper end of the material guiding plate, wherein the first inclined surface is used for bearing a nuclear fuel element cladding tube during feeding, the inclination angle of the second inclined surface is larger than that of the first inclined surface and that of the third inclined surface, and the inclination angles of the first inclined surface and the third inclined surface are close and generally are not more than 5 degrees.
The support guide wheel mechanism 3 comprises a guide wheel support plate 11 arranged on the base, a support wheel shaft 12 arranged on the guide wheel support plate, and a support guide wheel 13 arranged on the support wheel shaft, wherein the support guide wheel is a V-shaped wheel, and a V groove on the support guide wheel is used for supporting the nuclear fuel element cladding tube.
The clamping mechanism 20 comprises a cylinder fixing support 21 connected with the base, a rodless cylinder 22 arranged on the cylinder fixing support and moving along the axial direction of the nuclear fuel element cladding tube, a gas claw mounting plate 23 transversely fixed on the movable end of the rodless cylinder, a parallel gas claw 24 arranged on the gas claw mounting plate, and parallel claw hands 25 respectively arranged on the two movable ends of the parallel gas claws and matched with each other for clamping the nuclear fuel element cladding tube, wherein the parallel claw hands are made of PE materials, and can prevent the cladding tube from being damaged when the cladding tube is clamped. And a limiting plate 26 for limiting the moving position of the rodless cylinder is further arranged on the base, so that the position of the axial adjustment movement of the control cladding pipe is convenient to adjust. Specifically, the two opposite side surfaces of the two parallel claws are respectively provided with a V-shaped groove 27 for clamping the cladding tube, the V-shaped groove on one parallel claw is configured as a clamping block 28, and the V-shaped groove on the other parallel claw is configured as a clamping groove 29.
The endoscope longitudinal transmission mechanism 30 comprises a longitudinal transmission base 31 arranged on a base, a longitudinal transmission wheel shaft 32 arranged through the longitudinal transmission base, a longitudinal transmission wheel 33 arranged on the longitudinal transmission wheel shaft and corresponding to the supporting guide wheel mechanism, a longitudinal transmission servo motor 34 arranged on the side face of the longitudinal transmission base through a motor mounting plate 35, a coupler 36 connected between the output shaft of the longitudinal transmission servo motor and the longitudinal transmission wheel shaft, and a pressing wheel assembly arranged at the upper end of the longitudinal transmission base and matched with the longitudinal transmission wheel, wherein the longitudinal transmission wheel is a V-shaped wheel, and the pressing wheel assembly presses a cable at a detection head of an industrial endoscope arranged in a V groove of the longitudinal transmission wheel to rotate together with the longitudinal transmission wheel so that the detection head axially moves forward or backward in the inner wall space of the nuclear fuel element cladding tube. The pressing wheel assembly comprises two pressing guide rods 37 vertically arranged at the upper end of the longitudinal transmission base in parallel, a pressing fixed plate 38 arranged at the upper part of the pressing guide rods, a pressing air cylinder 39 arranged on the pressing fixed plate, a pressing movable block 40 sleeved on the pressing guide rods between the longitudinal transmission base and the pressing fixed plate, a pressing wheel 41 arranged on the pressing movable block through a rotating shaft and matched with the longitudinal transmission wheel, and a spring 42 sleeved on the pressing guide rods and positioned between the pressing fixed plate and the pressing movable block or between the longitudinal transmission base and the pressing movable block, wherein the pressing wheel is made of PE materials, and can prevent the industrial endoscope from being damaged when the detection head and cables thereof are pressed; the spring is arranged, so that the movable block and the pinch roller can be conveniently pressed to be kept at a certain position for a long time, and the load of other parts is reduced.
In the above mechanism, the shaft component, the wheel component, and the related plate seat may be mounted and connected in a conventional mounting manner, for example, by using a bearing, a bearing cap, a key, and other conventional components, which is not described in detail in this embodiment. And the cylinder driving part adopted in the utility model can be replaced by a corresponding screw rod driving part according to the actual application requirement, and the corresponding function can be realized.
When the nuclear fuel element detection device is used, a nuclear fuel element cladding tube is placed on the material guide mechanism through an external linkage mechanism (such as a feeding mechanism), and the cladding tube enters the supporting guide wheel on the supporting guide wheel mechanism along the material guide mechanism to be detected. During detection, the clamping mechanism clamps the cladding tube and moves the end part of the cladding tube to be close to the longitudinal conduction wheel, the detection head and the cable clamped by the longitudinal conduction wheel and the pressing wheel can enter the cladding tube just opposite to the end part of the cladding tube, and the longitudinal conduction motor controls the longitudinal conduction wheel to rotate so that the detection head can move forwards or backwards in the cladding tube, thereby detecting the defect of the inner wall; generally, during the first detection, a detection head and a cable of the industrial endoscope need to be manually placed on a longitudinal guide wheel and pressed by a pressing wheel, and the detection head needs to be manually plugged into the end part of the cladding tube if necessary. Through the arrangement, the efficiency of detecting the defects of the inner wall of the cladding tube can be effectively improved, and the device can be connected and matched with a related automatic mechanism to realize the common detection of various parameters on the same device.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, but all changes that can be made by applying the principles of the present invention and performing non-inventive work on the basis of the principles shall fall within the scope of the present invention.
Claims (10)
1. The inner wall defect detection device for detecting the nuclear fuel element cladding tube is characterized by comprising a long-strip-shaped base, a plurality of material guide mechanisms arranged on the base at intervals and used for feeding the nuclear fuel element cladding tube, a plurality of supporting guide wheel mechanisms arranged on the base at intervals and matched with the material guide mechanisms and used for supporting the nuclear fuel element cladding tube after feeding, a clamping mechanism arranged on the base and matched with the supporting guide wheel mechanisms and used for fixing the nuclear fuel element cladding tube during detection, an endoscope longitudinal transmission mechanism arranged at one end of the base and corresponding to the supporting guide wheel mechanisms, and an industrial endoscope used for detecting the defect of the inner wall of the nuclear fuel element cladding tube, wherein the endoscope longitudinal transmission mechanism axially sends a detection head of the industrial endoscope into the inner wall space of the nuclear fuel element cladding tube arranged on the supporting guide wheel mechanisms.
2. The apparatus as claimed in claim 1, wherein the guiding mechanism comprises a guiding support plate disposed on the base, a guiding plate connected to the guiding support plate, and a guiding portion disposed at an upper end of the guiding plate for sliding the nuclear fuel element cladding tube into the supporting guide wheel mechanism after loading, wherein the guiding portion is inclined from a loading side to a discharging side.
3. The apparatus as claimed in claim 2, wherein the guide portion is formed of a first inclined surface, a second inclined surface and a third inclined surface sequentially disposed on an upper end of the guide plate, wherein the first inclined surface is used for carrying the nuclear fuel element cladding tube during loading, and an inclination angle of the second inclined surface is greater than that of the first inclined surface and the third inclined surface.
4. The apparatus as set forth in claim 1, wherein the support guide wheel mechanism comprises a guide wheel support plate disposed on the base, a support wheel shaft disposed on the guide wheel support plate, and a support guide wheel disposed on the support wheel shaft, wherein the support guide wheel is a V-shaped wheel, and the V-groove is used for supporting the nuclear fuel element cladding tube.
5. The apparatus of claim 1, wherein the clamping mechanism comprises a cylinder fixing bracket connected to the base, a rodless cylinder disposed on the cylinder fixing bracket along an axial direction of the nuclear fuel element cladding tube, a gas claw mounting plate transversely fixed to a movable end of the rodless cylinder, parallel gas claws disposed on the gas claw mounting plate, and parallel claws disposed on two movable ends of the parallel gas claws respectively and matched with each other for clamping the nuclear fuel element cladding tube, wherein the parallel claws are made of PE material.
6. The apparatus of claim 5, wherein the base is further provided with a limiting plate for limiting a moving position of the rodless cylinder.
7. The apparatus as set forth in claim 5, wherein the opposite sides of the two parallel claws are provided with V-shaped grooves for clamping the cladding tube, and the V-shaped groove of one of the parallel claws is configured as a clamping block and the V-shaped groove of the other parallel claw is configured as a clamping groove.
8. The inner wall defect inspection device for nuclear fuel element cladding tube inspection as set forth in any one of claims 1 to 7, it is characterized in that the endoscope longitudinal transmission mechanism comprises a longitudinal transmission base arranged on the base, a longitudinal transmission wheel shaft arranged through the longitudinal transmission base, a longitudinal transmission wheel arranged on the longitudinal transmission wheel shaft and corresponding to the supporting guide wheel mechanism, a longitudinal transmission servo motor arranged on the side surface of the longitudinal transmission base through a motor mounting plate, a coupling connected between an output shaft of the longitudinal transmission servo motor and a longitudinal transmission wheel shaft, and a pinch roller assembly arranged at the upper end of the longitudinal transmission base and matched with the longitudinal transmission wheel, the vertical conduction wheel is a V-shaped wheel, and the pressing wheel assembly presses the cable at the detection head of the industrial endoscope placed in the V groove of the vertical conduction wheel to rotate together with the vertical conduction wheel, so that the detection head axially moves forwards or backwards in the inner wall space of the nuclear fuel element cladding tube.
9. The apparatus of claim 8, wherein the pinch roller assembly includes a pinch guide bar vertically disposed in parallel on an upper end of the vertical transmission base, a pinch fixing plate disposed on an upper portion of the pinch guide bar, a pinch cylinder disposed on the pinch fixing plate, a pinch movable block sleeved on the pinch guide bar between the vertical transmission base and the pinch fixing plate, a pinch roller disposed on the pinch movable block through a rotation shaft and matched with the vertical transmission roller, and a spring sleeved on the pinch guide bar and positioned between the pinch fixing plate and the pinch movable block or between the vertical transmission base and the pinch movable block.
10. The apparatus of claim 8, wherein the base is configured with a photoelectric switch for detecting the position of the nuclear fuel element cladding tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459270.7U CN216484662U (en) | 2021-10-13 | 2021-10-13 | Inner wall defect detection device for nuclear fuel element cladding tube detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459270.7U CN216484662U (en) | 2021-10-13 | 2021-10-13 | Inner wall defect detection device for nuclear fuel element cladding tube detection |
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| Publication Number | Publication Date |
|---|---|
| CN216484662U true CN216484662U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122459270.7U Active CN216484662U (en) | 2021-10-13 | 2021-10-13 | Inner wall defect detection device for nuclear fuel element cladding tube detection |
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| Country | Link |
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| CN (1) | CN216484662U (en) |
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- 2021-10-13 CN CN202122459270.7U patent/CN216484662U/en active Active
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