CN108538421A - A kind of diaphragm of rotating disc type - Google Patents
A kind of diaphragm of rotating disc type Download PDFInfo
- Publication number
- CN108538421A CN108538421A CN201810345547.3A CN201810345547A CN108538421A CN 108538421 A CN108538421 A CN 108538421A CN 201810345547 A CN201810345547 A CN 201810345547A CN 108538421 A CN108538421 A CN 108538421A
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- diaphragm
- supporting plate
- vertical supporting
- neutron
- turntable
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G4/00—Radioactive sources
- G21G4/02—Neutron sources
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a kind of diaphragm of rotating disc type, fixing and mounting bracket includes that bottom plate and left and right side installation column is fixedly mounted, and bottom plate upper end side is fixedly mounted and installs vertical supporting plate, vertical supporting plate is screwed on left and right side installation column；Vertical supporting plate rear end side installs diaphragm turntable, and vertical supporting plate corresponds to diaphragm turntable installing driving flange axis, and driving flange axis is driven by stepper motor, and flange portion and the diaphragm turntable centre position of driving flange axis are spirally connected；Vertical supporting plate opens up neutron incident window, and diaphragm turntable offers the circumferentially cyclic annular diaphragm window being evenly spaced on and distinguish rectangular shaped；Detector mounting bracket installing driving lead screw, the servo drive motor of diaphragm turntable rear end side, detector mounting bracket upper end side install active mount, and the feed screw nut of active mount matches with driving lead screw, and neutron detector is installed in active mount upper end.The present invention has the advantages that novel in design, controllability is strong, and effectively neutron current amount can be adjusted.
Description
Technical field
The present invention relates to spallation neutron target technical field more particularly to a kind of diaphragms of rotating disc type.
Background technology
The neutron with high-energy is generated using spallation neutron target, and is transmitted to the neutron of high-energy by neutron guide tube
More physics spectrometers, then carry out a series of Physical Experiment again.Wherein, neutron transmits the loss for having energy in neutron guide tube
Also it to prevent from radiating, neutron guide tube will maximumlly transmit neutron and reduce the loss of the energy in transmittance process, neutron guide tube
Inside is by ceaselessly by neutron reflection, transmission, finally making neutron be transmitted on more physics spectrometers and being tested.
Neutron guide tube is essential in the engineering of whole more physics spectrometers；More physics spectrometers will use neutron progress
Various experiments, it is necessary to from the sample environment that target station draws that neutron reaches spectrometer.
According to the experiment condition of spectrometer, needs more physics spectrometers that can provide the neutron beam of different flow, often change neutron
The size of flow is designed in terms of target station, and the throughput of high-energy neutron is controlled.When changing neutron flow, often
A large amount of neutron irradiation is generated, it is high to the requirement on devices around target station.
For the above situation, it is necessary to design corresponding mechanism of diaphragm to control the flow during Neutron Transmission.
Invention content
The purpose of the present invention is to provide a kind of diaphragm of rotating disc type, the mechanism of diaphragm of the rotating disc type is novel in design, adjustable
Section property is strong, and effectively neutron current amount can be adjusted.
In order to achieve the above objectives, the present invention is achieved through the following technical solutions.
A kind of diaphragm of rotating disc type, includes fixing and mounting bracket, and fixing and mounting bracket includes to consolidate in what horizontal cross was arranged
Determine mounting base, the upper end side that bottom plate is fixedly mounted is installed in the vertical supporting plate being vertically arranged, the left end of vertical supporting plate
Side is installed in the left side installation column being vertically arranged, and the right end side of vertical supporting plate is installed in the right side installation being vertically arranged
Column, column is installed in left side, spiral shell loads the upper surface for being fixed in and bottom plate being fixedly mounted, left side respectively for the lower end of right side installation column
The left end edge part of the upper end and vertical supporting plate of installing column is spirally connected, and upper end and the vertical supporting plate of column are installed in right side
Right end edge part be spirally connected；
The diaphragm turntable that the rear end side of vertical supporting plate is rotatably installed with shape in disk form and is vertically arranged, it is vertical to prop up
Fagging corresponds to diaphragm turntable and is rotatably installed with along the horizontal-extending driving flange axis of front-rear direction, driving flange axis
Front end extend to the front end side of vertical supporting plate, the flange portion of driving flange axis extend to the rear end side of vertical supporting plate and
The flange portion of driving flange axis and the centre position of diaphragm turntable are spirally connected；The upper end of vertical supporting plate corresponds to driving flange axis dress
Equipped with stepper motor, the power output shaft of stepper motor is drivingly connected with the front end of driving flange axis；
Vertical supporting plate offer it is front and back completely through and rectangular shaped neutron incident window, diaphragm turntable offers in circle
Zhou Huanzhuan is evenly spaced on and the diaphragm window of rectangular shaped, each diaphragm window are front and back completely through diaphragm turn respectively respectively
Disk, and all diaphragm windows are sequentially increased along circular arc direction opening area, during the opening area of each diaphragm window is respectively less than
The opening area of sub- incident window；When work, diaphragm turntable rotates and the center of a wherein diaphragm window is made to be directed at neutron and enter
Penetrate the center of window；
The upper surface that bottom plate is fixedly mounted is screwed with detector mounting bracket in the rear end side of diaphragm turntable, and detector mounting bracket can phase
To being rotationally installed with along the horizontal-extending driving lead screw of left and right directions, detector mounting bracket is in the side installing of driving lead screw
There are servo drive motor, power output shaft and the driving lead screw of servo drive motor to be drivingly connected；The upper end of detector mounting bracket
Side is installed with active mount, and active mount corresponds to driving lead screw and is screwed with feed screw nut, drives lead screw and feed screw nut's phase
Cooperation, the upper end of active mount is installed with neutron detector；When needing through neutron detector to by diaphragm window
When neutron flow is detected, neutron detector is moved in the dead astern of neutron incident window and the collection surface of neutron detector
The heart is aligned with the center of neutron incident window.
Wherein, the diaphragm turntable is high rigidity aluminum turntable.
Wherein, a boron carbide layer is posted on the surface of the diaphragm turntable.
Wherein, the boron carbide layer by granularity for boron carbide and the epoxy adhesive of F20-F100 are mixed and condensed in and
At the mixed proportion of boron carbide and epoxy adhesive is 4：1.
Beneficial effects of the present invention are：A kind of diaphragm of rotating disc type of the present invention comprising there is fixing and mounting bracket, Gu
It includes the fixed installation bottom plate arranged in horizontal cross that Dingan County, which is shelved, and the upper end side that bottom plate is fixedly mounted is installed in vertical cloth
The left end side of the vertical supporting plate set, vertical supporting plate is installed in the left side installation column being vertically arranged, vertical supporting plate
Right end side is installed in the right side installation column being vertically arranged, and column is installed in left side, spiral shell is distinguished in the lower end of right side installation column
The upper surface for being fixed in and bottom plate being fixedly mounted is loaded, the left end edge part spiral shell of the upper end and vertical supporting plate of column is installed in left side
It connects, the upper end of right side installation column and the right end edge part of vertical supporting plate are spirally connected；The rear end side of vertical supporting plate can be opposite
The diaphragm turntable for being rotationally installed with shape in disk form and being vertically arranged, vertical supporting plate correspond to diaphragm turntable rotatably
It is installed with along the horizontal-extending driving flange axis of front-rear direction, before the front end of driving flange axis extends to vertical supporting plate
End side, the flange portion of driving flange axis extend to the rear end side of vertical supporting plate and the flange portion and diaphragm turntable of driving flange axis
Centre position be spirally connected；The upper end of vertical supporting plate corresponds to driving flange axis and is installed with stepper motor, the power of stepper motor
The front end of output shaft and driving flange axis is drivingly connected；Vertical supporting plate offer it is front and back completely through and rectangular shaped
Neutron incident window, diaphragm turntable offer the circumferentially cyclic annular diaphragm window being evenly spaced on and distinguish rectangular shaped,
Each diaphragm window is front and back completely through diaphragm turntable respectively, and all diaphragm windows increase successively along circular arc direction opening area
Greatly, the opening area of each diaphragm window is respectively less than the opening area of neutron incident window；When work, diaphragm turntable rotates and makes
The center of the center alignment neutron incident window of a wherein diaphragm window；The upper surface of bottom plate is fixedly mounted after diaphragm turntable
End side is screwed with detector mounting bracket, and detector mounting bracket is rotatably installed with along the horizontal-extending drive of left and right directions
Dynamic lead screw, detector mounting bracket are installed with servo drive motor, the power output of servo drive motor in the side of driving lead screw
Axis is drivingly connected with driving lead screw；The upper end side of detector mounting bracket is installed with active mount, and active mount corresponds to driving
Lead screw is screwed with feed screw nut, and driving lead screw is matched with feed screw nut, and the upper end of active mount is installed with neutron detection
Device；When needing through neutron detector to being detected by the neutron flow of diaphragm window, during neutron detector is moved to
The dead astern of the sub- incident window and collection surface center of neutron detector is aligned with the center of neutron incident window.Pass through above-mentioned knot
Structure designs, and the present invention has the advantages that novel in structural design, controllability are strong, and can effectively be adjusted to neutron current amount
Section.
Description of the drawings
The present invention is further detailed below with attached drawing, but the embodiment in attached drawing is not constituted to this hair
Bright any restrictions.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the decomposition diagram of the present invention.
Include in fig. 1 and 2：
Bottom plate is fixedly mounted in 1 --- fixing and mounting bracket 11 ---
12 --- installing column 13 in left side --- install column in right side
2 --- vertical supporting plate 21 --- neutron incident windows
3 --- diaphragm turntable 31 --- diaphragm windows
4 --- driving flange axis 51 --- detector mounting brackets
52 --- driving lead screw 53 --- servo drive motors
54 --- active mount 55 --- neutron detectors.
Specific implementation mode
With reference to specific embodiment, the present invention will be described.
As depicted in figs. 1 and 2, a kind of diaphragm of rotating disc type, includes fixing and mounting bracket 1, and fixing and mounting bracket 1 includes to be in
The fixed installation bottom plate 11 of horizontal cross arrangement, the upper end side that bottom plate 11 is fixedly mounted are installed in the vertical supporting being vertically arranged
The left end side of plate 2, vertical supporting plate 2 is installed in the left side installation column 12 being vertically arranged, the right end side dress of vertical supporting plate 2
Equipped with column 13 is installed in the right side being vertically arranged, the lower end difference spiral shell dress of column 12, right side installation column 13 is installed in left side
It is anchored on the upper surface that bottom plate 11 is fixedly mounted, the left end edge part of the upper end and vertical supporting plate 2 of column 12 is installed in left side
It is spirally connected, the upper end and the right end edge part of vertical supporting plate 2 of right side installation column 13 are spirally connected.
Further, the rear end side of vertical supporting plate 2 is rotatably installed with shape in disk form and is vertically arranged
Diaphragm turntable 3, vertical supporting plate 2 correspond to diaphragm turntable 3 and are rotatably installed with along the horizontal-extending drive of front-rear direction
Dynamic flange shaft 4, the front end of driving flange axis 4 extend to the front end side of vertical supporting plate 2, and the flange portion of driving flange axis 4 is prolonged
The flange portion and the centre position of diaphragm turntable 3 for extending to the rear end side of vertical supporting plate 2 and driving flange axis 4 are spirally connected；Vertical branch
The upper end of fagging 2 corresponds to driving flange axis 4 and is installed with stepper motor, power output shaft and the driving flange axis 4 of stepper motor
Front end be drivingly connected.
Further, vertical supporting plate 2 offer it is front and back completely through and rectangular shaped neutron incident window 21,
Diaphragm turntable 3 offers the circumferentially cyclic annular diaphragm window 31 being evenly spaced on and distinguish rectangular shaped, each diaphragm window
31 is front and back completely through diaphragm turntable 3 respectively, and all diaphragm windows 31 are sequentially increased along circular arc direction opening area, respectively
The opening area of diaphragm window 31 is respectively less than the opening area of neutron incident window 21；When work, diaphragm turntable 3 rotates and makes
The center of the center alignment neutron incident window 21 of a wherein diaphragm window 31.
It should further be noted that the upper surface that bottom plate 11 is fixedly mounted is screwed with detector peace in the rear end side of diaphragm turntable 3
51 are shelved, detector mounting bracket 51 is rotatably installed with along the horizontal-extending driving lead screw 52 of left and right directions, detection
Device mounting bracket 51 is installed with servo drive motor 53 in the side of driving lead screw 52, the power output shaft of servo drive motor 53 with
Lead screw 52 is driven to be drivingly connected；The upper end side of detector mounting bracket 51 is installed with active mount 54, and active mount 54 corresponds to
Driving lead screw 52 is screwed with feed screw nut, and driving lead screw 52 is matched with feed screw nut, the upper end installing of active mount 54
There is neutron detector 55；When needing through neutron detector 55 to being detected by the neutron flow of diaphragm window 31, in
Sub- detector 55 is moved to collection surface center and the neutron entrance window in the dead astern of neutron incident window 21 and neutron detector 55
The center alignment of mouth 21.
It is emphasized that diaphragm turntable 3 is high rigidity aluminum turntable, and a boron carbide layer is posted on the surface of diaphragm turntable 3；
Preferably, boron carbide layer is mixed and condensed in by the boron carbide that granularity is F20-F100 with epoxy adhesive, boron carbide
Mixed proportion with epoxy adhesive is 4：1.
In the course of work of the present invention, the 4 intermittent rotation of power output shaft driving driving flange axis of stepper motor, interval
Property rotation driving flange axis 4 drive the 3 intermittent rotation of diaphragm turntable so that diaphragm window 31 be selectively aligning with it is perpendicular
To the neutron incident window 21 of support plate 2.When work, when needing a certain specific neutron flow, stepper motor drives idler wheel to turn
Disk rotates and the diaphragm window 31 of required opening area is made to turn to 21 position of neutron incident window.
In addition, when need to being detected by the neutron flow of diaphragm window 31 when, servo drive motor 53 by by
The lead screw transmission mechanism driving active mount 54 that driving lead screw 52, feed screw nut are formed moves left and right, active mount 54
It drives neutron detector 55 to synchronize to move left and right, so that the collection surface center of neutron detector 55 and neutron incident window 21
Center is aligned.When need not be to being detected by the neutron flow of diaphragm window 31, neutron detector 55 deviates neutron and enters
Penetrate the dead astern of window 21.
Based on the above situation, it may be appreciated that by said structure design, the present invention has novel in structural design, controllability strong
Advantage, and effectively neutron current amount can be adjusted.
The above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (4)
1. a kind of diaphragm of rotating disc type, it is characterised in that：It include fixing and mounting bracket（1）, fixing and mounting bracket（1）It is in water to include
The fixed installation bottom plate of flat lateral arrangement（11）, bottom plate is fixedly mounted（11）Upper end side be installed in the vertical branch that is vertically arranged
Fagging（2）, vertical supporting plate（2）Left end side be installed in be vertically arranged left side installation column（12）, vertical supporting plate（2）
Right end side be installed in be vertically arranged right side installation column（13）, column is installed in left side（12）, right side install column（13）
Spiral shell loads and is fixed in fixed installation bottom plate respectively for lower end（11）Upper surface, left side install column（12）Upper end with it is vertical
Support plate（2）Left end edge part be spirally connected, right side install column（13）Upper end and vertical supporting plate（2）Right end edge part
It is spirally connected；
Vertical supporting plate（2）The rear end side diaphragm turntable that is rotatably installed with shape in disk form and is vertically arranged（3）,
Vertical supporting plate（2）Corresponding diaphragm turntable（3）It is rotatably installed with along the horizontal-extending driving flange of front-rear direction
Axis（4）, driving flange axis（4）Front end extend to vertical supporting plate（2）Front end side, driving flange axis（4）Flange portion
Extend to vertical supporting plate（2）Rear end side and driving flange axis（4）Flange portion and diaphragm turntable（3）Centre position spiral shell
It connects；Vertical supporting plate（2）Upper end correspond to driving flange axis（4）It is installed with stepper motor, the power output shaft of stepper motor
With driving flange axis（4）Front end be drivingly connected；
Vertical supporting plate（2）Offer it is front and back completely through and rectangular shaped neutron incident window（21）, diaphragm turntable（3）
Offer the circumferentially cyclic annular diaphragm window being evenly spaced on and distinguish rectangular shaped（31）, each diaphragm window（31）Respectively
It is front and back completely through diaphragm turntable（3）, and all diaphragm windows（31）It is sequentially increased along circular arc direction opening area, each light
Late window（31）Opening area be respectively less than neutron incident window（21）Opening area；When work, diaphragm turntable（3）Rotation is simultaneously
Make a wherein diaphragm window（31）Center be aligned neutron incident window（21）Center；
Bottom plate is fixedly mounted（11）Upper surface in diaphragm turntable（3）Rear end side be screwed with detector mounting bracket（51）, detection
Device mounting bracket（51）It is rotatably installed with along the horizontal-extending driving lead screw of left and right directions（52）, detector mounting bracket
（51）In driving lead screw（52）Side be installed with servo drive motor（53）, servo drive motor（53）Power output shaft with
Drive lead screw（52）It is drivingly connected；Detector mounting bracket（51）Upper end side be installed with active mount（54）, active mount
（54）Corresponding driving lead screw（52）It is screwed with feed screw nut, drives lead screw（52）It is matched with feed screw nut, active mount
（54）Upper end be installed with neutron detector（55）；When needing to pass through neutron detector（55）To passing through diaphragm window（31）'s
When neutron flow is detected, neutron detector（55）It is moved to neutron incident window（21）Dead astern and neutron detector
（55）Collection surface center and neutron incident window（21）Center alignment.
2. a kind of diaphragm of rotating disc type according to claim 1, it is characterised in that：The diaphragm turntable（3）For high rigidity
Aluminum turntable.
3. a kind of diaphragm of rotating disc type according to claim 2, it is characterised in that：The diaphragm turntable（3）Surface patch
There is a boron carbide layer.
4. a kind of diaphragm of rotating disc type according to claim 3, it is characterised in that：The boron carbide layer is by granularity
The boron carbide of F20-F100 is mixed and condensed in epoxy adhesive, the mixed proportion of boron carbide and epoxy adhesive
It is 4：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345547.3A CN108538421B (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm of rotating disc type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345547.3A CN108538421B (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm of rotating disc type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538421A true CN108538421A (en) | 2018-09-14 |
| CN108538421B CN108538421B (en) | 2019-05-17 |
Family
ID=63481304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810345547.3A Expired - Fee Related CN108538421B (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm of rotating disc type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108538421B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017820A (en) * | 2019-03-02 | 2019-07-16 | 泉州市铺梦者工业设计有限公司 | A kind of building inclination monitoring adjustable infrared level meter of warning light |
| CN113936838A (en) * | 2021-10-11 | 2022-01-14 | 散裂中子源科学中心 | Two-stage positioning neutron diaphragm switching mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2031601A1 (en) * | 2007-08-28 | 2009-03-04 | Kabushiki Kaisha Kobe Seiko Sho | Neutron Chopper |
| WO2009039832A1 (en) * | 2007-09-28 | 2009-04-02 | Forschungszentrum Jülich GmbH | Chopper for a particle beam |
| CN103091701A (en) * | 2011-10-28 | 2013-05-08 | 中国原子能科学研究院 | Multipurpose flight time equipment for measuring quality of cold neutron beam |
| CN104376890A (en) * | 2014-10-30 | 2015-02-25 | 东莞中子科学中心 | Rotating disc type neutron chopper |
-
2018
- 2018-04-17 CN CN201810345547.3A patent/CN108538421B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2031601A1 (en) * | 2007-08-28 | 2009-03-04 | Kabushiki Kaisha Kobe Seiko Sho | Neutron Chopper |
| WO2009039832A1 (en) * | 2007-09-28 | 2009-04-02 | Forschungszentrum Jülich GmbH | Chopper for a particle beam |
| CN101809676A (en) * | 2007-09-28 | 2010-08-18 | 于利奇研究中心有限公司 | The chopper that is used for particle beam |
| CN103091701A (en) * | 2011-10-28 | 2013-05-08 | 中国原子能科学研究院 | Multipurpose flight time equipment for measuring quality of cold neutron beam |
| CN104376890A (en) * | 2014-10-30 | 2015-02-25 | 东莞中子科学中心 | Rotating disc type neutron chopper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017820A (en) * | 2019-03-02 | 2019-07-16 | 泉州市铺梦者工业设计有限公司 | A kind of building inclination monitoring adjustable infrared level meter of warning light |
| CN110017820B (en) * | 2019-03-02 | 2021-03-16 | 惠州市建设集团工程建设监理有限公司 | Building slope monitoring warning is with infrared spirit level of light adjustable |
| CN113936838A (en) * | 2021-10-11 | 2022-01-14 | 散裂中子源科学中心 | Two-stage positioning neutron diaphragm switching mechanism |
| CN113936838B (en) * | 2021-10-11 | 2023-09-26 | 散裂中子源科学中心 | Two-stage positioning neutron diaphragm switching mechanism |
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| Publication number | Publication date |
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| CN108538421B (en) | 2019-05-17 |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Yu Inventor after: Sun Zhenzhong Inventor after: Yin Wen Inventor after: Chen Haibin Inventor after: Li Songcheng Inventor before: Sun Zhenzhong Inventor before: Yin Wen Inventor before: Chen Haibin Inventor before: Liu Yu Inventor before: Li Songcheng |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190517 Termination date: 20200417 |