CN107436445B - Automatic lifting heat release light irradiator - Google Patents
Automatic lifting heat release light irradiator Download PDFInfo
- Publication number
- CN107436445B CN107436445B CN201710612399.2A CN201710612399A CN107436445B CN 107436445 B CN107436445 B CN 107436445B CN 201710612399 A CN201710612399 A CN 201710612399A CN 107436445 B CN107436445 B CN 107436445B
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- bearing seat
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- small
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- shaft
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- 230000002285 radioactive effect Effects 0.000 claims abstract description 26
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 3
- 244000309464 bull Species 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000000137 annealing Methods 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/10—Luminescent dosimeters
- G01T1/11—Thermo-luminescent dosimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention relates to an automatic lifting pyroelectric light irradiator. The screw sleeve and the screw rod are arranged in a central long hole of the lead chamber in a matched manner, the top of the screw rod is provided with a radioactive source box, the lead chamber is arranged on the bracket, and the bearing seat B is arranged at the top of the lead chamber; the gear reducer is arranged on the bracket, and drives the small toothed wheel through the synchronous belt, and the small toothed wheel is fixed with the shaft; the bearing is arranged in the bearing seat A and the bearing cover, the bearing seat A is arranged on the bearing seat support, and the bearing seat support is fixed on the bracket; the inner bearing cover floats on the bearing seat B, the outer bearing cover and the turntable are arranged on the bull gear, the bull gear is driven to rotate by the bull gear, and the bull gear is clamped on the bearing seat B through a bearing. The microcomputer and the instrument are designed into a whole, so that the invention has small volume and convenient use; especially, the method is more convenient for users without standard radiation fields; meanwhile, the method has the functions of automatically processing decay of the radioactive source, calculating and controlling irradiation time and rotation speed of an irradiation disk and selected irradiation amount, and the like.
Description
Technical Field
The invention relates to an automatic lifting thermoluminescent light irradiator, which is a key instrument matched with a thermoluminescent dosimeter, and irradiates thermoluminescent dosage elements after annealing treatment so as to screen dosage elements and scale thermoluminescent dosimeters and provide a relative standard radiation field.
Background
For users of the existing thermoluminescent dosimeter and thermoluminescent annealing furnace, the thermoluminescent instrument can form a complete system by configuring the instrument, and meanwhile, other samples can be provided: for example, the method is used for small-dose irradiation of quartz mineral powder samples of the ground ore system. However, since the irradiation amount ranges from 1 to 104 milli-clems, the dose is particularly large. Unhealthy effects can be produced for instrument adjusting personnel and instrument users, and an instrument with good shielding effect and automatic radiation source feeding and taking is quite necessary.
Disclosure of Invention
The invention aims to provide an automatic lifting pyroelectric light irradiator, which enables a radioactive source operator to contact a radioactive source in a shorter time, automatically lifts the radioactive source and irradiates, and meanwhile, no radiation leakage exists in the irradiation process.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an automatic lifting pyroelectric light irradiator is characterized in that a threaded sleeve and a threaded rod are installed in a central long hole of a lead chamber in a matched mode, a radioactive source box is installed at the top of the threaded rod, the lead chamber is installed on a support, and a bearing seat B is installed at the top of the lead chamber; the gear reducer is arranged on the bracket, the small tooth-shaped wheel is driven by the synchronous belt and is fixed with the shaft, and the shaft is connected with the screw sleeve; the bearing is arranged in the bearing seat A and the bearing cover, the bearing seat A is arranged on the bearing seat support, and the bearing seat support is fixed on the bracket; the inner bearing cover floats on the bearing seat B, the outer bearing cover and the turntable are arranged on the bull gear, the bull gear is driven to rotate by the bull gear, and the bull gear is clamped on the bearing seat B through a bearing; a micro motor and a pinion support are fixed on the motor support, the micro motor is connected with a small shaft through a coupler, a pinion is fixed on the small shaft, and the motor support is arranged on the lead chamber; the right side of the cover is provided with a crank, the bottom of the cover is provided with feet, the bracket is arranged in the cover, the shielding ring is arranged on the upper part of the cover, and the upper cover is arranged on the upper part of the shielding ring; the travel switch A is arranged on the screw rod, the travel switch B is arranged on the supporting plate, the supporting plate is arranged on the bearing seat B, and the bearing seat B and the lead chamber are arranged in a positioning way through a center long hole.
The small tooth-shaped wheel is fixed with the shaft through a key and a screw.
The pinion is fixed on the small shaft through a nut.
The shaft is connected with the screw sleeve through a key.
When the radiation source box is in operation, the radiation source is arranged in the radiation source box, the gear reducer drives the small toothed wheel to rotate through the synchronous belt after the upper cover is tightly covered, the small toothed wheel drives the shaft and the screw sleeve to rotate, the screw rod is pushed to the top through the screw thread by the screw sleeve, and the shielding ring plays a role in radiation shielding at the moment; after the large gear drives the rotation of the disc to the position of the travel switch A, the travel switch A sends a position signal to the micro motor to stop rotating, after irradiation is carried out for a period of time, the micro motor drives the coupler, the small shaft and the small gear to rotate, and the small gear drives the gear reducer to rotate to continue the next measurement; when the turntable rotates to a fixed position, the micro motor is signaled to stop rotating through the travel switch B; when the radioactive source box descends, the upper cover is lifted for sample replacement; if an alarm appears in the middle, the lifting of the bracket is controlled by the crank so as to control all the relevant components of the radioactive source box to lift and prevent the ray leakage.
The beneficial effects obtained by the invention are as follows:
the microcomputer and the instrument are designed into a whole, so that the invention has small volume and convenient use; especially, the method is more convenient for users without standard radiation fields; meanwhile, the method has the functions of automatically processing decay of the radioactive source, calculating and controlling irradiation time and rotation speed of an irradiation disk and selected irradiation amount, and the like. By improving the lead chamber structure, the addition of an automatic radioactive source lifting device greatly reduces the time for the whole operation process to contact the radioactive source. When the radioactive source is firstly put and taken, related personnel only need to put in the threaded rod once, and the radioactive source is not required to be replaced by frequent operation in later operation. The measuring personnel can directly measure, and no radiation leaks. Meanwhile, the number of measured dosage pieces is more, the protection intensity is larger, and the working environment is protected more. Under the non-working condition, the radioactive source is positioned in the deep part of the lead room, so that radiation can be effectively shielded, and the health of related personnel and the environment can be ensured. Meanwhile, a manual crank is added, so that when faults occur, the whole lead chamber is removed, and the maintenance difficulty is increased. In addition, the manual crank can control the position of the radioactive source, and when the turntable needs to be maintained, the radioactive source can be completely lowered into the lead chamber, so that radiation pollution is avoided.
Drawings
FIG. 1 is a block diagram of an automatic lifting pyroelectric light illuminator;
in the figure: 1-a radiation source box; 2-a screw; 3-travel switch A; 4-an inner bearing cap; 5-bearing; 6-an outer bearing cap; 7-a large gear; 8-an upper cover; 9-a turntable; 10-shielding ring; 11-a nut; 12-pinion gear; 13-pinion carrier; 14-a motor support; 15-small axis; a 16-coupling; 17-a micro-motor; 18-lead chamber; 19-limiting pipes; 20-a screw sleeve; 21-axis; 22-a bracket; 23-bearing seat support; 24-bearing seat A; 25-bearing cap; 26-screw; a 27-bond; 28-small toothed wheel; 29-a synchronous belt; 30-a gear reducer; 31-footing; 32-cover; 33, a crank; 34-bearing seat B; 35-supporting plates; 36-travel switch B.
Detailed Description
As shown in fig. 1, the automatic lifting pyroelectric light irradiator of the present invention comprises a radioactive source box 1, a screw rod 2, a travel switch A3, an inner bearing cover 4, a bearing 5, an outer bearing cover 6, a large gear 7, an upper cover 8, a turntable 9, a shielding ring 10, a nut 11, a pinion 12, a pinion support 13, a motor support 14, a small shaft 15, a coupling 16, a micro motor 17, a lead chamber 18, a limiting tube 19, a screw sleeve 20, a shaft 21, a support 22, a bearing seat support 23 and a bearing seat a24; bearing cap 25, screw 26, key 27, pinion 28, timing belt 29, gear reducer 30, foot 31, cover 32, crank 33, bearing block B34, pallet 35 and travel switch B36;
the screw sleeve 20 is matched with the screw rod 2, and the top of the screw rod 2 is provided with the radioactive source box 1. The lead chamber 18 is screwed on the bracket 22, the channel of the screw rod 2 and the screw sleeve 20 is arranged in a long hole in the center of the lead chamber 18, and the bearing seat B34 is screwed on the top of the lead chamber 18. The gear reducer 30 is screwed on the bracket 22, and drives the small toothed wheel 28 through the synchronous belt 29, and the small toothed wheel 28 and the shaft 21 are fixed together through the key 27 and the screw 26. The shaft 21 is connected with the screw sleeve 20 through a key; the bearing 5 is installed inside the bearing seat A24 and the bearing cover 25, the bearing seat A24 is installed on the bearing seat support 23, and the bearing seat support 23 is fixed on the bracket 22. The inner bearing cover 4 floats on the bearing seat B34, the outer bearing cover 6 and the turntable 9 are screwed on the large gear 7, the large gear 7 is driven to rotate, and the large gear 7 is clamped on the bearing seat B34 through the bearing 5. The micro motor 17 and the pinion support 13 are fixed on the motor support 14, the micro motor 17 is connected with the small shaft 15 through the coupler 16, the pinion 12 is fixed on the small shaft 15 through the nut 11, and the motor support 14 is screwed on the lead chamber 18. The right side of the cover 32 is provided with a crank 33, the bottom is provided with 4 feet 31, the bracket 22 is provided in the cover 32, the shielding ring 10 is provided on the upper part of the cover 32, and the upper cover 8 is provided on the upper part of the shielding ring 10. The travel switch A3 is screwed on the screw rod 2, the travel switch B36 is screwed on the supporting plate 35, the supporting plate 35 is screwed on the bearing seat B34, and the bearing seat B34 and the lead chamber 18 are positioned and screwed by a central hole site.
When the radioactive source box is in operation, the radioactive source is arranged in the radioactive source box 1, and after the upper cover 8 is tightly covered, the gear reducer 30 drives the small toothed wheel 28 to rotate through the synchronous belt 29. The small toothed wheel 28 drives the shaft 21 and the screw sleeve 20 to rotate, and the screw 2 is pushed up by the screw sleeve 20 through threads. At this time, the shielding ring 10 plays a role of radiation shielding. After the large gear 7 drives the turntable 9 to rotate to the position of the travel switch A3, the travel switch A3 sends a position signal to the micro motor 17 to stop rotating, after a period of irradiation, the micro motor 17 drives the coupler 16, the small shaft 15 and the small gear 12 to rotate, and the small gear 12 drives the gear reducer 30 to rotate to continue the next measurement. When the turntable 9 rotates to a fixed position, the micro motor 17 is signaled to stop rotating through the travel switch B36. When the radioactive source box 1 descends, the upper cover 8 is lifted for sample replacement. If an alarm appears in the middle, the crank 33 can control the support 22 to lift and lower so as to control all the components related to the radioactive source box 1 to lift and lower, thus preventing radiation leakage.
Claims (4)
1. An automatic lifting pyroelectric light irradiator is characterized in that: the screw sleeve (20) and the screw rod (2) are installed in a central long hole of the lead chamber (18) in a matched mode, the radioactive source box (1) is installed at the top of the screw rod (2), the lead chamber (18) is installed on the support (22), and the bearing seat B (34) is installed at the top of the lead chamber (18); the gear reducer (30) is arranged on the bracket (22), and drives the small toothed wheel (28) through the synchronous belt (29), and the small toothed wheel (28) and the shaft (21) are fixed together; the shaft (21) is connected with the screw sleeve (20); the bearing (5) is arranged in the bearing seat A (24) and the bearing cover (25), the bearing seat A (24) is arranged on the bearing seat support (23), and the bearing seat support (23) is fixed on the bracket (22); the inner bearing cover (4) floats on the bearing seat B (34), the outer bearing cover (6) and the rotary table (9) are arranged on the large gear (7), the large gear (7) is driven to rotate, and the large gear (7) is clamped on the bearing seat B (34) through the bearing (5); a micro motor (17) and a pinion support (13) are fixed on the motor support (14), the micro motor (17) is connected with a small shaft (15) through a coupler (16), the pinion (12) is fixed on the small shaft (15), and the motor support (14) is arranged on a lead chamber (18); the right side of the cover (32) is provided with a crank (33), the bottom of the cover (32) is provided with a foot (31), the bracket (22) is arranged inside the cover (32), the shielding ring (10) is arranged on the upper part of the cover (32), and the upper cover (8) is arranged on the upper part of the shielding ring (10); the travel switch A (3) is arranged on the screw (2), the travel switch B (36) is arranged on the supporting plate (35), the supporting plate (35) is arranged on the bearing seat B (34), and the bearing seat B (34) and the lead chamber (18) are arranged in a positioning way through a central long hole;
when the radiation source box is in operation, the radiation source is arranged in the radiation source box (1), after the upper cover (8) is tightly covered, the gear reducer (30) drives the small toothed wheel (28) to rotate through the synchronous belt (29), the small toothed wheel (28) drives the shaft (21) and the screw sleeve (20) to rotate, the screw rod (2) is pushed up to the top by the screw sleeve (20) through threads, and the shielding ring (10) plays a role in radiation shielding; after the large gear (7) drives the turntable (9) to rotate to the position of the travel switch A (3), the travel switch A (3) sends a position signal to the micro motor (17) to stop rotating, after a period of irradiation, the micro motor (17) drives the coupler (16), the small shaft (15) and the small gear (12) to rotate, and the small gear (12) drives the gear reducer (30) to rotate to continue the next round of measurement; when the turntable (9) rotates to a fixed position, the micro motor (17) is signaled to stop rotating through the travel switch B (36); when the radioactive source box (1) descends, the upper cover (8) is lifted for sample replacement; if an alarm appears in the middle, the crank (33) controls the support (22) to lift so as to control all the components related to the radioactive source box (1) to lift, thereby preventing the radiation leakage.
2. The automatic lifting pyroelectric light illuminator according to claim 1, wherein: the small tooth wheel (28) and the shaft (21) are fixed together through a key (27) and a screw (26).
3. The automatic lifting pyroelectric light illuminator according to claim 1, wherein: the pinion (12) is fixed on the small shaft (15) through a nut (11).
4. The automatic lifting pyroelectric light illuminator according to claim 1, wherein: the shaft (21) is connected with the screw sleeve (20) through a key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612399.2A CN107436445B (en) | 2017-07-25 | 2017-07-25 | Automatic lifting heat release light irradiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612399.2A CN107436445B (en) | 2017-07-25 | 2017-07-25 | Automatic lifting heat release light irradiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107436445A CN107436445A (en) | 2017-12-05 |
| CN107436445B true CN107436445B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710612399.2A Active CN107436445B (en) | 2017-07-25 | 2017-07-25 | Automatic lifting heat release light irradiator |
Country Status (1)
| Country | Link |
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| CN (1) | CN107436445B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1516567A (en) * | 1967-03-21 | 1968-03-08 | Beckman Instruments Inc | Elevator mechanism for sample change and light shutter for scintillation counting |
| CN101158722A (en) * | 2006-02-10 | 2008-04-09 | 中国人民解放军63960部队 | Personal dose-meter calibrating panorama irradiation device |
| CN201955473U (en) * | 2010-12-16 | 2011-08-31 | 中国核动力研究设计院 | Multi-source gamma calibration device |
| CN103454666A (en) * | 2012-05-30 | 2013-12-18 | 中国辐射防护研究院 | Dosimeter panoramic exposure calibrating device |
| CN204882881U (en) * | 2015-02-27 | 2015-12-16 | 上海应用技术学院 | Belt type food radioassay appearance |
| CN105785427A (en) * | 2016-05-19 | 2016-07-20 | 海南核电有限公司 | Automatic rotation calibrating device for [gamma] dosage rate meters |
| CN207096466U (en) * | 2017-07-25 | 2018-03-13 | 中核控制系统工程有限公司 | Automatic lifting thermoluminescence irradiator |
-
2017
- 2017-07-25 CN CN201710612399.2A patent/CN107436445B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1516567A (en) * | 1967-03-21 | 1968-03-08 | Beckman Instruments Inc | Elevator mechanism for sample change and light shutter for scintillation counting |
| CN101158722A (en) * | 2006-02-10 | 2008-04-09 | 中国人民解放军63960部队 | Personal dose-meter calibrating panorama irradiation device |
| CN201955473U (en) * | 2010-12-16 | 2011-08-31 | 中国核动力研究设计院 | Multi-source gamma calibration device |
| CN103454666A (en) * | 2012-05-30 | 2013-12-18 | 中国辐射防护研究院 | Dosimeter panoramic exposure calibrating device |
| CN204882881U (en) * | 2015-02-27 | 2015-12-16 | 上海应用技术学院 | Belt type food radioassay appearance |
| CN105785427A (en) * | 2016-05-19 | 2016-07-20 | 海南核电有限公司 | Automatic rotation calibrating device for [gamma] dosage rate meters |
| CN207096466U (en) * | 2017-07-25 | 2018-03-13 | 中核控制系统工程有限公司 | Automatic lifting thermoluminescence irradiator |
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| Publication number | Publication date |
|---|---|
| CN107436445A (en) | 2017-12-05 |
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