CN217717560U - Shielding performance scanning detection device - Google Patents
Shielding performance scanning detection device Download PDFInfo
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- CN217717560U CN217717560U CN202221431237.1U CN202221431237U CN217717560U CN 217717560 U CN217717560 U CN 217717560U CN 202221431237 U CN202221431237 U CN 202221431237U CN 217717560 U CN217717560 U CN 217717560U
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- shielding container
- shielding
- nut seat
- frame
- rotating
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Abstract
The utility model provides a shielding property scanning detection device, the device include detector, axial transport mechanism, circumference transfer mechanism, radiation source and elevating system. The detector is arranged on the axial conveying mechanism; the axial conveying mechanism is arranged outside the shielding container to be detected and used for driving the detector to axially slide along the shielding container; the circumferential rotating mechanism is arranged outside the shielding container, the axial conveying mechanism is arranged on the circumferential rotating mechanism, and the circumferential rotating mechanism is used for driving the axial conveying mechanism to rotate along the circumferential direction of the shielding container; the radioactive source is arranged on the lifting mechanism and is arranged inside the shielding container to be detected; the lifting mechanism is arranged at the top of the shielding container to be detected and used for fixing the radioactive source and keeping the radioactive source and the detector relatively static. The utility model discloses convenient dismantlement, installation and transportation help reducing staff's intensity of labour, promote the precision and the efficiency that detect to can be applied to multiple specification and dimension's shielded container's detection.
Description
Technical Field
The utility model relates to a detection device, specifically speaking are shielding property scanning detection device.
Background
With the vigorous development of civil and military nuclear power technology, a great deal of nuclear facilities in China are in the operation or preparation decommissioning stage at present, and a great deal of spent fuel components, radiation sources and radioactive wastes are generated in the process. These nuclear wastes require transport or storage. The shielding container is an indispensable key device for transporting and storing nuclear waste materials such as spent fuel, and the gamma shielding performance is a key parameter for quality inspection of the shielding container. At present, the detection method for detecting the gamma shielding performance of the shielding container is relatively lagged behind and is mostly finished manually. The detection mode has low detection efficiency and poor accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shielding property scans detection device to promote detection efficiency and the rate of accuracy to shielding container's shielding property.
The utility model discloses a realize like this: a shielding performance scan test apparatus, comprising:
the detector is arranged on the axial conveying mechanism;
the axial conveying mechanism is arranged outside the shielding container to be detected and is used for driving the detector to axially slide along the shielding container;
the circumferential rotating mechanism is arranged outside the shielding container, the axial conveying mechanism is arranged on the circumferential rotating mechanism, and the circumferential rotating mechanism is used for driving the axial conveying mechanism to rotate along the circumferential direction of the shielding container;
the radioactive source is arranged on the lifting mechanism and is arranged inside the shielding container to be detected; and
a lifting mechanism arranged at the top of the shielding container to be detected and used for fixing the radioactive source and lifting the radioactive source in the shielding container to keep the radioactive source and the detector relatively still
The axial transmission mechanism is a transmission lead screw and comprises a nut seat guide rail, a lead screw nut seat and a first driving motor; the nut seat guide rail is arranged along the axial direction of the shielding container, the lead screw is arranged on the nut seat guide rail along the axial direction of the shielding container, the lead screw nut seat is in threaded connection with the lead screw, the lead screw can be rotated to drive the lead screw nut seat to slide along the nut seat guide rail, and the detector is arranged on the lead screw nut seat; the first driving motor is arranged on the nut seat guide rail and used for driving the lead screw to rotate.
Two ends of the lead screw penetrate through bearing seats on the nut seat guide rail, and a bearing is arranged between the bearing seats and the lead screw.
The circumferential rotating mechanism comprises a rotating trolley which rotates along the circumferential direction of the outer wall of the shielding container and a conveying chain which is used for bundling the rotating trolley on the outer wall of the shielding container; the rotating trolley comprises a frame, wheels arranged at the bottom of the frame, a chain wheel arranged on the frame and a second driving motor, wherein the chain wheel is meshed with the conveying chain, and the second driving motor is used for driving the chain wheel to rotate; and the nut seat guide rail of the axial conveying mechanism is fixed on the frame of the rotating trolley.
The two axial rotating mechanisms are respectively arranged at two ends of the nut seat guide rail.
The lifting mechanism comprises a support frame fixed at the top of the shielding container and a lifting frame used for mounting the radioactive source, a winch is arranged on the support frame, and a steel rope of the winch is connected with the lifting frame to drive the lifting frame to lift in the shielding container.
The support frame is integrally of a Y-shaped frame structure, and the number of the winches is three, and the three winches are respectively arranged on three forks of the fixed frame.
The lifting frame is integrally in a Y-shaped branched structure, three branched rod pieces are telescopic rods, a free end rod face of each telescopic rod is provided with a hanging ring, and the three hanging rings are respectively connected with steel ropes of three winches on the supporting frame in sequence; when in use, the free ends of the three forked rod pieces of the lifting frame are abutted against the inner wall of the shielding container.
Be equipped with the rubber tape on the shielding container along rotating the dolly rotation region, be equipped with two rings along the spacing protruding strip that shielding container circumference set up on the contact surface that the rubber tape contacted, when the rubber tape was around putting on shielding container, between two rings of spacing protruding strips form round track groove on the surface of sticky tape, for supplying the rotation dolly is around shielding container pivoted spacing track, spacing orbital width slightly is greater than the distance between the both sides wheel outward flange of rotation dolly.
Each circle of the limiting convex strip is composed of a plurality of limiting bulges arranged at intervals.
The utility model provides a shielding property scanning detection device, the device conveniently dismantles, installs and transports, has avoided adopting the artifical condition of accomplishing, helps reducing staff's intensity of labour, promotes detection efficiency, and the accuracy that detects is better. In addition, when the shielding performance scanning detection device of the utility model is used, when the radial size of the shielding container is larger, a longer transmission chain can be used for guiding the rotating trolley; when shielding container's whole height is great, can detect in upper and lower direction segmentation, make the utility model discloses can be applied to different specification and dimension's shielding container's detection, the range of application is wider.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the crane.
Fig. 3 is a schematic structural view of the rotating trolley.
In the figure: 1. a lifting frame; 2. a support frame; 3. rotating the trolley; 4. a drive screw; 5. a vehicle rail; 6. a drive chain; 7. a winch; 8. a hoisting ring; 9. bracing; 10. a transverse stay bar; 11. a connecting seat; 12. a wheel; 13. a frame; 14. a second drive motor; 16. the container is shielded.
Detailed Description
As shown in fig. 1, the utility model provides a device that shielding property detected, the device are applicable to the detection of tubular structure's shielding container 16, and the device includes detector, axial transport mechanism, circumferential direction mechanism, radiation source and elevating system. Wherein the probe is mounted on the axial transport mechanism. The axial transmission mechanism is arranged outside the shielding container 16 to be detected and used for driving the detector to slide along the axial direction of the shielding container 16. The circumferential rotating mechanism is also arranged outside the shielding container 16, and the circumferential conveying mechanism is arranged on the circumferential rotating mechanism and is used for driving the axial conveying mechanism to rotate along the circumferential direction of the shielding container 16. The radioactive source is mounted on the lifting mechanism and is disposed inside the shielded container 16 to be tested. The lifting mechanism is arranged on the top of the shielding container 16 to be detected and used for fixing the radioactive source and keeping the radioactive source and the detector to be relatively static in the vertical direction.
The utility model provides an axial transport mechanism is conveying lead screw 4, and it includes nut seat guide rail, lead screw seat nut and a driving motor. The nut seat guide rail is arranged along the axial direction of the shielding container, the screw rod is arranged on the nut seat guide rail along the axial direction of the shielding container, the screw rod nut seat is in threaded connection with the screw rod, and the screw rod can be rotated to drive the screw rod nut seat to slide along the nut seat guide rail. The utility model provides a detector is installed on lead screw nut seat, and the detector just can slide along shielding container 16's axial at nut seat guide rail along with lead screw nut seat like this. The first driving motor is arranged on the nut seat guide rail and used for driving the screw rod to rotate. The nut seat guide rail is provided with a bearing seat, two ends of the lead screw are respectively arranged on the bearing seat in a penetrating way, and a bearing is arranged between the lead screw and the bearing seat so as to reduce the friction resistance of the lead screw in rotation.
The utility model discloses a circumferential direction mechanism includes along shielded cell outer wall circumferential direction's rotation dolly 3 and is used for tying up the transfer link chain 6 on the 16 outer walls of shielded cell with rotating the dolly. As shown in fig. 3, the rotating trolley 3 includes a frame 13, wheels 12, a sprocket and a second driving motor 14, the wheels 12 are installed at the bottom of the frame 13 and distributed at two sides of the frame 13, and 4 wheels are provided in this embodiment and symmetrically distributed at two sides of the frame 13. And a chain wheel and a second driving motor 14 are arranged on the frame 13, and the number of the chain wheels is two, wherein one chain wheel is driven by the second driving motor 14, and the other chain wheel is a driven wheel. Both chain wheels are meshed with the transmission chain. In addition, the nut seat guide rails of the axial transfer mechanism are fixed to the frame 13 of the turning cart 3. The utility model provides a circumferential direction mechanism is provided with two, sets up respectively at the both ends of nut seat guide rail, can be to what axial transport mechanism supported more firm like this.
The utility model discloses an elevating system is including fixing support frame 2 at 16 tops of shielded cell and the crane 1 that is used for installing the radiation source, is equipped with hoist engine 7 on the support frame 2, and hoist engine 7's steel cable meets with crane 1 for drive crane 1 in 16 inside lifts in order to guarantee with outside detector synchronous lifting of shielded cell.
As shown in fig. 1, the support frame 2 of the present invention is a frame structure with a Y-shape as a whole. The 7 winches 7 are respectively arranged on the three forks of the support frame 2. As shown in fig. 2, the crane 1 is a forked rod structure in a Y shape as a whole, and includes a connecting seat 11 located at the center, three transverse support rods 10 dispersedly connected to the connecting seat 11, and an inclined support 9 connected between the transverse support rods 10 and the connecting seat 11. The transverse supporting rods 10 in this embodiment are telescopic rods with adjustable lengths, the rod surface of the free end of each telescopic rod above is provided with a hanging ring 8, and the hanging rings 8 on the three telescopic rods are connected with the steel ropes of the three winches 7 on the supporting frame 2 in sequence. The utility model discloses when using, the radiation source is installed on the connecting seat 11 of crane, and the free end of the three transverse supporting rod 10 of crane supports and leans on shielding container's inner wall to prevent that crane 1 from taking place to rock at the in-process that goes up and down.
The utility model discloses still set up one and be used for carrying out vertical spacing rail 5 to rotating trolley 3. The rail 5 is formed by a rubber band around the area where the rotating trolley 3 rotates outside the shielded container 16. The contact surface of the rubber belt and the shielding container 16 is provided with two circles of limiting protruding strips which are arranged along the axial direction of the shielding container 16, the structure arrangement can ensure that when the rubber belt is wound on the shielding container, a circle of track groove is formed on the outer surface of the rubber belt between the two circles of limiting protruding strips, and the width of the limiting track is slightly larger than the distance between the outer edges of wheels at two sides of the rotating trolley 3 for the limiting track of the rotating trolley 3 rotating around the shielding container 16. Each circle of limiting convex strip on the rubber belt in the embodiment is composed of a plurality of limiting bulges arranged at intervals.
Claims (10)
1. A shielding performance scanning detection device is characterized by comprising:
the detector is arranged on the axial conveying mechanism;
the axial conveying mechanism is arranged outside the shielding container to be detected and used for driving the detector to axially slide along the shielding container;
the circumferential rotating mechanism is arranged outside the shielding container, the axial conveying mechanism is arranged on the circumferential rotating mechanism, and the circumferential rotating mechanism is used for driving the axial conveying mechanism to rotate along the circumferential direction of the shielding container;
the radioactive source is arranged on the lifting mechanism and is arranged inside the shielding container to be detected; and
and the lifting mechanism is arranged at the top of the shielding container to be detected and used for fixing the radioactive source and lifting the radioactive source in the shielding container to keep the radioactive source and the detector relatively static.
2. The shielding performance scanning detection device of claim 1, wherein the axial transmission mechanism is a transmission screw rod, which comprises a nut seat guide rail, a screw rod nut seat and a first driving motor; the nut seat guide rail is arranged along the axial direction of the shielding container, the lead screw is arranged on the nut seat guide rail along the axial direction of the shielding container, the lead screw nut seat is in threaded connection with the lead screw, the lead screw can be rotated to drive the lead screw nut seat to slide along the nut seat guide rail, and the detector is arranged on the lead screw nut seat; the first driving motor is arranged on the nut seat guide rail and used for driving the lead screw to rotate.
3. The shielding performance scanning detection device of claim 2, wherein two ends of the screw rod are inserted into bearing seats on a nut seat guide rail, and a bearing is arranged between the bearing seats and the screw rod.
4. The shielding performance scanning and detecting device of claim 2, wherein the circumferential rotating mechanism comprises a rotating trolley which rotates along the circumferential direction of the outer wall of the shielding container and a conveying chain which is used for binding the rotating trolley on the outer wall of the shielding container; the rotating trolley comprises a frame, wheels arranged at the bottom of the frame, a chain wheel arranged on the frame and a second driving motor, wherein the chain wheel is meshed with the conveying chain, and the second driving motor is used for driving the chain wheel to rotate; and a nut seat guide rail of the axial conveying mechanism is fixed on a frame of the rotating trolley.
5. The shielding performance scanning and detecting device of claim 4, wherein two of said circumferential rotating mechanisms are respectively arranged at two ends of said nut seat guide rail.
6. The shielding performance scanning and detecting device of claim 1, wherein the lifting mechanism comprises a support frame fixed on the top of the shielding container and a lifting frame for mounting the radioactive source, the support frame is provided with a winch, and a steel rope of the winch is connected with the lifting frame to drive the lifting frame to lift in the shielding container.
7. The apparatus according to claim 6, wherein the support frame is a generally Y-shaped frame structure, and the number of the winches is three, and the three winches are respectively disposed on three branches of the support frame.
8. The shielding performance scanning and detecting device of claim 7, wherein the lifting frame is of a Y-shaped branched structure as a whole, the three branched rod pieces are telescopic rods, a free end rod face of each telescopic rod is provided with a hanging ring, and the three hanging rings are connected with steel ropes of three winches on the supporting frame in sequence respectively; when in use, the free ends of the three forked rod pieces of the lifting frame abut against the inner wall of the shielding container.
9. The shielding performance scanning and detecting device of claim 4, wherein a rubber belt is arranged on the shielding container along the rotating area of the rotating trolley, two circles of limiting protruding strips arranged along the circumferential direction of the shielding container are arranged on the contact surface of the rubber belt and the shielding container, when the rubber belt is wound on the shielding container, a circle of track groove is formed on the outer surface of the rubber belt between the two circles of limiting protruding strips, and the width of the limiting track is slightly larger than the distance between the outer edges of the wheels at two sides of the rotating trolley for the limiting track of the rotating trolley rotating around the shielding container.
10. The shielding performance scanning detection device of claim 9, wherein each circle of the limiting protrusion strip on the rubber belt is composed of a plurality of limiting protrusions arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221431237.1U CN217717560U (en) | 2022-06-09 | 2022-06-09 | Shielding performance scanning detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221431237.1U CN217717560U (en) | 2022-06-09 | 2022-06-09 | Shielding performance scanning detection device |
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| Publication Number | Publication Date |
|---|---|
| CN217717560U true CN217717560U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221431237.1U Active CN217717560U (en) | 2022-06-09 | 2022-06-09 | Shielding performance scanning detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117517352A (en) * | 2024-01-05 | 2024-02-06 | 上海阿波罗机械股份有限公司 | Mobile shielding performance detection device and detection method |
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2022
- 2022-06-09 CN CN202221431237.1U patent/CN217717560U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117517352A (en) * | 2024-01-05 | 2024-02-06 | 上海阿波罗机械股份有限公司 | Mobile shielding performance detection device and detection method |
| CN117517352B (en) * | 2024-01-05 | 2024-03-15 | 上海阿波罗机械股份有限公司 | Mobile shielding performance detection device and detection method |
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