CN1779446B - Rotary device of container checking system with CT fault scanning function - Google Patents
Rotary device of container checking system with CT fault scanning function Download PDFInfo
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- CN1779446B CN1779446B CN 200410009886 CN200410009886A CN1779446B CN 1779446 B CN1779446 B CN 1779446B CN 200410009886 CN200410009886 CN 200410009886 CN 200410009886 A CN200410009886 A CN 200410009886A CN 1779446 B CN1779446 B CN 1779446B
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- swivel mount
- annular swivel
- radiation source
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Abstract
A rotation device with CT fault scanning function of container detection system is prepared as fixing radiation source and calibrator just facing to said source on external side of circular rotation frame; fixing front collimator, back collimator, detector array on internal side of circular rotation frame and enabling sector X ray to pass through front collimator, appliance, container detection vehicle then to face just to back collimator and detector array; hinging circular rotation frame on circumnavigation frame fixed on ground to let circular rotation frame rotate synchronously around a fixed center by utilizing a driving device.
Description
Technical field
The present invention relates to the used large container inspection system of customs, particularly have the slewing equipment of the container check system of CT tomoscan function.
Background technology
In the prior art, begin to have the drawing type container examination system to come out, as the van container detection system of German Heyman company and British Aerospace PLC's production from the beginning of the nineties.They are in a building can shield the sense channel of ray, fixed, as to produce sigmatron radiation source is housed and can receives the detector array that passes the container X ray, the vehicle that container will be housed with the driven equipment of special use dragged sense channel, when container passes through in X-ray beam, the X ray that sees through container is through in the detector, according to its Strength Changes, the Density Distribution of the object of adorning in the reflection case, and transmitted intensity is transformed into gradation of image, can obtain the fluoroscopy images of the object of adorning in the case.Chinese patent ZL95103044.2 discloses a kind of name and has been called " self-scan type radiation detection system for large body ", and this system comprises radiation source, collimating tower, track and scanning gantry.Radiation source is as for moving reciprocatingly on the track, and collimating tower and survey tower and place on another group track, and with radiation source is done to be synchronized with the movement by department's clothes driven by motor.Tested large-sized object places the collimating tower track and surveys between the tower track, ray from radiation source passes through collimating tower, enter the detector array of surveying tower after seeing through container, detector receives ray and output charge, be transferred to image workstation after being transformed into number, can obtain the fluoroscopy images of the object of adorning in the case.
The X-radiation imaging check system of above-mentioned present application, because its pick-up unit all fixedly mounts, usually relative object to be detected has only the relative motion of a direction, therefore can only obtain the tomographic projection image of an angle, can not obtain the faultage image of object to be detected at a certain position, this has limited the accuracy to the complex article container cargo investigating to a certain extent.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the purpose of this invention is to provide a kind of slewing equipment of container check system of the CT of having tomoscan function.The container check system that uses it to form not only can be accomplished the routine inspection to object to be detected, can implement the tomography inspection to the Suspected Area of object to be detected simultaneously, thus the accuracy that the more effective raising of energy is checked offensive cargo.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
A kind of slewing equipment with container check system of CT tomoscan function, it comprises radiation source, corrector, preceding collimating apparatus, back collimating apparatus, detector array and the annular swivel mount that container inspection vehicle is passed through.Its design feature is, the fixing described radiation source in the outside of described annular swivel mount and over against the corrector of radiation source, the inboard of annular swivel mount fixing described before collimating apparatus, back collimating apparatus and detector array and make fan-shaped X ray that radiation source penetrates by rectifier, preceding collimating apparatus, container inspection vehicle after over against back collimating apparatus and detector array.The fixing belt support body in described annular swivel mount and ground is hinged and make the annular swivel mount can do synchronous revolution and make annular swivel mount stoppable by clamping device around a dead center by drive unit.
In above-mentioned slewing equipment, described drive unit is made up of motor, speed reduction unit, spur gear, external toothing. and motor outputs power by speed reduction unit, connect spur gear on the reducer output shaft, be fastened on the outer wall of annular swivel mount with the external toothing of spur gear engagement, the angle of revolution scope of external toothing interferes to prevent radiation source and the corrector installed with the annular swivel mount outside in 236 degree.
In above-mentioned slewing equipment, described clamping device adopts the roll extrusion cylinder to drive, and the outer wall of annular swivel mount is provided with damper brake, damper brake by with the fixing roll extrusion oil cylinder control in ground.
In above-mentioned slewing equipment, described radiation source adopts linac or isotope.
Slewing equipment provided by the present invention, since with radiation source, preceding collimating apparatus, back collimating apparatus and detector array all be fixed on can rotating annular swivel mount in, when gearing drives container inspection vehicle by the annular swivel mount, can carry out routine examination to detected material.When adorning suspicious object in object to be detected is found, conveyer can be retreated, the Suspected Area is retreated to the annular swivel mount, this position is the gap location of conveyer just, can make to be examined article in the scanning process and not have any blocking.Then, start the annular swivel mount CT tomoscan is carried out in the Suspected Area, thereby make check result more accurate.Compare with prior art, the present invention is reasonable in design, easy to use, for ease of maintenaince, reduced floor area.
The present invention is described further below in conjunction with drawings and embodiments.
Description of drawings
Fig. 1 is a structure scheme of installation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is user mode figure of the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2, the annular swivel mount 4 that the present invention includes employing linac or isotopic radiation source 1, corrector 2, preceding collimating apparatus 3, back collimating apparatus 6, detector array 5 and container inspection vehicle is passed through.The fixing described radiation source 1 in the outside of annular swivel mount 4 and over against the corrector 2 of radiation source 1, before the inboard of annular swivel mount 4 is fixing collimating apparatus 3, back collimating apparatus 6 and detector array 5 and make fan-shaped X ray that radiation source 1 penetrates by rectifier 2, preceding collimating apparatus 3, container inspection vehicle after over against back collimating apparatus 6 and detector array 5.The fixing belt support body in described annular swivel mount 4 and ground 10 is hinged and make annular swivel mount 4 can do synchronous revolution and make annular swivel mount 4 stoppables by clamping device 12 around a dead center by drive unit 8.Clamping device 12 adopts the roll extrusion cylinders to drive, and the outer wall of annular swivel mount 4 is provided with damper brake 13, damper brake 13 by with fixing roll extrusion oil cylinder 14 controls in ground.Drive unit 8 is made up of motor, speed reduction unit, spur gear, external toothing.Motor outputs power by speed reduction unit, connect spur gear on the reducer output shaft, be fastened on the outer wall of annular swivel mount 4 with the external toothing of spur gear engagement, the angle of revolution scope of external toothing interferes to prevent radiation source 1 and the corrector 2 installed with annular swivel mount 4 outsides in 236 degree.
The using method of the container check system that is formed by the present invention is under the control of remote control, to make conveyer 7 delivery container inspection vehicle carry out the conventional sweep inspection by annular swivel mount 4.When in finding container inspection vehicle suspicious object being housed, control conveyer 7 retreats, and the Suspected Area in the container inspection vehicle is moved in the annular swivel mount 4 stop the stop of 12 pairs of annular swivel mounts 4 of brake off device.Start the annular swivel mount
4 revolutions are carried out the CT tomoscan to the Suspected Area.After having checked, clamping device 12 makes annular swivel mount 4 slow down revolution until stopping at assigned address.The driver leaves scan channel with container inspection vehicle and waits check result, at this moment can proceed the inspection to next container inspection vehicle.
Claims (3)
1. slewing equipment with container check system of CT tomoscan function, it comprises radiation source (1), corrector (2), preceding collimating apparatus (3), back collimating apparatus (6), detector array (5) and the annular swivel mount (4) that container inspection vehicle is passed through, it is characterized in that, the fixing described radiation source (1) in the outside of described annular swivel mount (4) reaches the corrector (2) over against radiation source (1), the fixing described preceding collimating apparatus (3) in the inboard of annular swivel mount (4), back collimating apparatus (6) and detector array (5) and the fan-shaped X ray that radiation source (1) is penetrated pass through corrector (2), preceding collimating apparatus (3), after the container inspection vehicle over against back collimating apparatus (6) and detector array (5), the fixing annular frame (10) in described annular swivel mount (4) and ground is hinged and make annular swivel mount (4) can do synchronous revolution and make annular swivel mount (4) stoppable by clamping device (12) around a dead center by drive unit (8), described drive unit (8) is by motor, speed reduction unit, spur gear, external toothing is formed, motor outputs power by speed reduction unit, connect spur gear on the reducer output shaft, be fastened on the outer wall of annular swivel mount (4) with the external toothing of spur gear engagement, the angle of revolution scope of external toothing interferes to prevent radiation source (1) and the corrector (2) installed with annular swivel mount (4) outside in 236 degree.
2. according to the described slewing equipment of claim 1, it is characterized in that described clamping device (12) adopts Driven by Hydraulic Cylinder, the outer wall of annular swivel mount (4) is provided with damper brake (13), damper brake (13) by with fixing hydraulic jack (14) control in ground.
3. according to claim 1 or 2 described slewing equipments, it is characterized in that described radiation source (1) adopts linac or isotope with container check system of CT tomoscan function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410009886 CN1779446B (en) | 2004-11-26 | 2004-11-26 | Rotary device of container checking system with CT fault scanning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410009886 CN1779446B (en) | 2004-11-26 | 2004-11-26 | Rotary device of container checking system with CT fault scanning function |
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| Publication Number | Publication Date |
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| CN1779446A CN1779446A (en) | 2006-05-31 |
| CN1779446B true CN1779446B (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410009886 Active CN1779446B (en) | 2004-11-26 | 2004-11-26 | Rotary device of container checking system with CT fault scanning function |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210892B (en) * | 2006-12-28 | 2010-08-25 | 同方威视技术股份有限公司 | Composite revolving conveying workstation for aviation container CT detection |
| CN106996939A (en) * | 2017-04-07 | 2017-08-01 | 清华大学 | Tomoscan check device |
| CN108181330A (en) * | 2018-03-07 | 2018-06-19 | 中国科学院高能物理研究所 | A kind of detection device for automobile setting loss |
| CN111317497A (en) * | 2020-03-09 | 2020-06-23 | 南京安科医疗科技有限公司 | Vehicle-mounted CT (computed tomography) electric control brake device and working method thereof |
| EP4251055A1 (en) * | 2020-11-25 | 2023-10-04 | Shenzhen Xpectvision Technology Co., Ltd. | Imaging apparatus |
| CN112730473B (en) * | 2021-03-30 | 2021-07-27 | 同方威视技术股份有限公司 | Radiographic inspection device and vehicle-mounted security inspection system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093862A (en) * | 1977-02-25 | 1978-06-06 | General Electric Company | Gantry for computed tomography |
| US4093863A (en) * | 1977-03-03 | 1978-06-06 | Artronix, Inc. | Tomographic apparatus |
| US4658408A (en) * | 1985-03-04 | 1987-04-14 | Picker International Inc. | Computed tomography brake method and apparatus |
| CN2752761Y (en) * | 2004-11-26 | 2006-01-18 | 清华同方威视技术股份有限公司 | Rotary device of container survey system with CT tomoscanning function |
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2004
- 2004-11-26 CN CN 200410009886 patent/CN1779446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093862A (en) * | 1977-02-25 | 1978-06-06 | General Electric Company | Gantry for computed tomography |
| US4093863A (en) * | 1977-03-03 | 1978-06-06 | Artronix, Inc. | Tomographic apparatus |
| US4658408A (en) * | 1985-03-04 | 1987-04-14 | Picker International Inc. | Computed tomography brake method and apparatus |
| CN2752761Y (en) * | 2004-11-26 | 2006-01-18 | 清华同方威视技术股份有限公司 | Rotary device of container survey system with CT tomoscanning function |
Non-Patent Citations (6)
| Title |
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| 倪培君 等.工业CT技术 第三讲 工业CT***的结构及配置.无损检测18 3.1996,18(3),84-87. |
| 倪培君 等.工业CT技术 第三讲 工业CT***的结构及配置.无损检测18 3.1996,18(3),84-87. * |
| 胡伟标.CT机射线质量控制***及故障部件改进.CT理论与应用研究5 1.1996,5(1),32-34. |
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| 郭志平 等.工业CT技术 第一讲 工业CT技术发展概况.无损检测18 1.1996,18(1),27-30. * |
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| CN1779446A (en) | 2006-05-31 |
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