CN111812133A - Monochromator capable of adjusting focusing radius - Google Patents
Monochromator capable of adjusting focusing radius Download PDFInfo
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- CN111812133A CN111812133A CN202010684224.4A CN202010684224A CN111812133A CN 111812133 A CN111812133 A CN 111812133A CN 202010684224 A CN202010684224 A CN 202010684224A CN 111812133 A CN111812133 A CN 111812133A
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- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
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Abstract
The invention provides a monochromator capable of adjusting a focusing radius, which comprises a box body for placing a reflector plate, a frame, a first driving assembly and a second driving assembly, wherein the first driving assembly is arranged on the box body; the box body is of a long strip-shaped structure, a reflector plate is arranged on the front side of the box body, and the box body is tightly pressed through a limiting piece; the two ends of the box body are rotationally connected with the frame; two ends of the box body are respectively provided with a through hole along the width direction, a pressing tongue rotationally connected with the box body is arranged in the through hole, and the rotating axis of the pressing tongue is parallel to the width direction of the box body; the box bodies are multiple and are sequentially arranged along the width direction of the box bodies; the first driving assembly is simultaneously in driving connection with the pressing tongue on each box body, can drive the pressing tongue to rotate, and enables the reflecting sheet to be bent forwards under the matching action of the limiting pieces; the box body is provided with a turnover connecting piece, the second driving assembly is in driving connection with the turnover connecting pieces on each box body simultaneously, and the box bodies are driven to rotate. The monochromator has reasonable structural design, convenient adjustment, high adjustment precision and obviously improved applicability.
Description
Technical Field
The invention belongs to the technical field of neutron scattering experiments, and particularly relates to a monochromator with an adjustable focusing radius and a bracket.
Background
Neutrons have the characteristics of strong penetration ability, magnetic moment, no electricity and the like. Neutron scattering as a research technology has been involved in the research fields of physics, chemistry, chemical engineering, biology, geological and mining, material science and the like, such as unknown structure determination, determination of atom occupancy and thermal shock parameters, dynamic measurement of the structure of a sample changing with time, research of magnetic order and magnetic phase change, structure determination under special environments (low temperature, high pressure and magnetic field) and the like.
The neutrons produced by the reactor are white light neutrons with continuous wavelengths. According to the bragg law, neutrons with specific wavelengths in the white neutron beam emitted from the reactor can be selected by a single crystal diffraction technology so as to meet the needs of neutron scattering experiments. The neutron beam intensity at the sample is a key technical index directly influencing the performance of the spectrometer, and the neutron flux at the sample of the neutron scattering spectrometer can be multiplied by converging monochromatic neutron beams by using the focusing monochromator. The focusing monochromator is equipped with a plurality of single crystals, and neutrons of a specific wavelength satisfying the Bragg law can be focused at a sample by cooperatively changing the vertical inclination angle and the horizontal curvature of all the single crystals. The technology is widely applied to spectrometer devices such as neutron powder diffraction, stress, single crystal, three-axis and the like.
However, the current neutron focusing monochromator still has many defects technically, for example, the focusing parameters of the fixed monochromator are fixed and cannot be adjusted, the manual monochromator is inconvenient to adjust, the manual operation is more, or the structural design is unreasonable, and the adjustment precision is not high.
Disclosure of Invention
In order to solve the technical problem, the invention provides the monochromator capable of adjusting the focusing radius, which has the advantages of reasonable structural design, convenient adjustment, high adjustment precision and obviously improved applicability.
The invention aims to realize the technical scheme that the monochromator with the adjustable focusing radius comprises a box body for placing a reflector plate, a frame, a first driving assembly and a second driving assembly; the box body is of a long strip-shaped structure, a limiting piece and an installation position for placing the reflector plate are arranged on the front side of the box body, and the reflector plate is placed on the installation position and then is pressed tightly through the limiting piece arranged on the front side of the box body; the two ends of the box body are rotationally connected with the frame, and the rotation axis is parallel to the length direction of the box body; two ends of the box body are respectively provided with a through hole along the width direction, a pressing tongue rotationally connected with the box body is arranged in the through hole, and the rotating axis of the pressing tongue is parallel to the width direction of the box body; the number of the box bodies is multiple, and the box bodies are sequentially arranged along the width direction of the box bodies; the first driving assembly is simultaneously in driving connection with the pressure tongues on each box body, can drive the pressure tongues to rotate, and enables the reflector plates to be bent forwards under the matching action of the limiting pieces; the box body is provided with a turnover connecting piece, the second driving assembly is connected with each turnover connecting piece on the box body in a driving mode, and the box body is driven to rotate.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, one end of the pressure tongue close to the middle part of the box body is rotatably connected with the box body, and the front side of one end far away from the middle part of the box body is provided with a top block which can be abutted against the reflector plate;
the limiting piece comprises two pressure heads which are respectively arranged at two sides of the middle part of the box body;
the two ejector blocks are closer to two ends of the box body in the length direction than the two pressing heads.
Furthermore, the jacking block is movably connected to the pressing tongue, an adjusting screw is arranged on the back side of the pressing tongue, and the extending distance of the jacking block can be adjusted by screwing the adjusting screw.
Furthermore, a pressure-bearing part with a cambered surface convex structure is arranged on the back side of the pressure tongue;
the first driving assembly comprises two rotating shafts arranged on the frame, the rotating shafts are of eccentric structures, and cylindrical surfaces of the rotating shafts are abutted to the pressure bearing pieces.
Furthermore, the two ends of the rotating shaft are respectively connected with the frame in a rotating mode, a first reset hole is formed in the position, on the end face of one end of the rotating shaft, of a non-rotating shaft line, a first inserting hole matched with the first reset hole is formed in the corresponding position of the frame, and the rotating shaft can be determined to be located at the initial position by inserting a first pin shaft matched with the first reset hole and the first inserting hole.
Furthermore, the first driving assembly further comprises a first driving motor arranged on the frame, and the first driving motor is provided with two power output ends and is in synchronous transmission connection with the two rotating shafts.
Further, the turnover connecting piece comprises a contact which is arranged on the back side of the box body;
the second driving assembly comprises a spiral rotating shaft, wherein forward and reverse threaded grooves are formed in the spiral rotating shaft, and each contact of the box body is sequentially embedded into the threaded groove.
Furthermore, the two ends of the spiral rotating shaft are respectively connected with the frame in a rotating mode, a second reset hole is formed in the position, on the end face of one end of the spiral rotating shaft, of a non-rotating axis, a second inserting hole matched with the second reset hole is formed in the corresponding position of the frame, and the spiral rotating shaft can be determined to be located at the initial position by inserting a second pin shaft matched with the second reset hole and the second inserting hole.
Furthermore, the second driving assembly further comprises a second driving motor arranged on the frame, and the second driving motor is in transmission connection with the spiral rotating shaft.
The box body is characterized in that the frame comprises two side plates, and the two side plates are respectively arranged on two sides of the box body in the length direction;
the inner sides of the two side plates are provided with sliding chutes;
the two sides of the box body are respectively provided with a sliding block, and the sliding blocks are connected with the box body in a rotating fit mode and are connected with the sliding grooves in a matching mode.
According to the technical scheme provided by the invention, the neutron monochromatization vertical focusing device for the neutron diffraction spectrometer is provided, the reflector plate can be placed in the elongated box body, and then the curvature of the reflector plate placed in the box body in the horizontal direction and the vertical direction can be adjusted through the first driving assembly and the second driving assembly, so that the purpose of focusing monochromatic neutron beams is realized, and the beam spots are very uniform. The whole device is simple in structure, reasonable in layout, convenient to adjust and high in efficiency, and automatic control and adjustment can be achieved.
Drawings
FIG. 1 is a schematic perspective view of a monochromator with adjustable focusing radius according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angular perspective of the embodiment of FIG. 1;
FIG. 3 is a schematic structural view of an embodiment of the cartridge;
FIG. 4 is a schematic view of a disassembled structure of an embodiment of the cartridge body;
FIG. 5 is a schematic view of another angle disassembled structure of the box body;
FIG. 6 is a partially disassembled view of a monochromator with adjustable focusing radius according to an embodiment of the present invention;
FIG. 7 is a schematic view of another angular disassembled structure shown in FIG. 6;
FIG. 8 is a schematic view of the installation of the box body and the side plate;
FIG. 9 is a schematic diagram of a monochromator with adjustable focusing radius according to the present invention. Wherein the part numbers in the figures are represented as:
1. the device comprises a box body, 2, a frame, 3, a limiting piece, 4, a reflector plate, 5, a through hole, 6, a pressing tongue, 7, a turnover connecting piece, 8, a top block, 9, a pressing head, 10, an adjusting screw, 11, a bearing piece, 12, a rotating shaft, 13, a first reset hole, 14, a first insertion hole, 15, a first pin shaft, 16, a first driving motor, 17, a contact, 18, a spiral rotating shaft, 19, a thread groove, 20, a second reset hole, 21, a second insertion hole, 22, a second pin shaft, 23, a second driving motor, 24, a side plate, 25, a sliding groove, 26, a sliding block, 27, a box rotating shaft, 28, a top plate, 29 and a bottom plate.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The principles and features of the present invention will be described with reference to the accompanying drawings, which are provided for illustration only and are not true physical projections; in addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.
Referring to fig. 1 to 9, fig. 1 is a schematic perspective view of a monochromator with adjustable focusing radius according to an embodiment of the present invention; FIG. 2 is a schematic view of another angular perspective of the embodiment of FIG. 1; FIG. 3 is a schematic structural view of an embodiment of the cartridge; FIG. 4 is a schematic view of a disassembled structure of an embodiment of the cartridge body; FIG. 5 is a schematic view of another angle disassembled structure of the box body; FIG. 6 is a partially disassembled view of a monochromator with adjustable focusing radius according to an embodiment of the present invention; FIG. 7 is a schematic view of another angular disassembled structure shown in FIG. 6; FIG. 8 is a schematic view of the installation of the box body and the side plate; FIG. 9 is a schematic diagram of a monochromator with adjustable focusing radius according to the present invention.
The invention provides a monochromator with adjustable focusing radius, which comprises a box body 1 for placing a reflector plate 4, a frame 2, a first driving component and a second driving component; the reflective sheet 4 may be a silicon wafer.
For convenience of adjustment, the box body 1 is of a long strip-shaped structure, a limiting part 3 and an installation position for placing the reflecting sheet 4 are arranged on the front side of the box body, and the reflecting sheet 4 is placed on the installation position and then is pressed tightly through the limiting part 3 arranged on the front side of the box body 1; the two ends of the box body 1 are rotatably connected with the frame 2, and the line of the rotating shaft 12 is parallel to the length direction of the box body 1; two ends of the box body 1 are respectively provided with a through hole 5 along the width direction, a pressing tongue 6 which is rotatably connected with the box body 1 is arranged in the through hole 5, and the line of a rotating shaft 12 of the pressing tongue is parallel to the width direction of the box body 1; the number of the box bodies 1 is multiple, in the embodiment, 9, the number can be freely set according to needs, and the box bodies are sequentially arranged along the width direction; the first driving assembly is simultaneously in driving connection with the pressure tongue 6 on each box body 1, can drive the pressure tongue 6 to rotate, and enables the reflector plate 4 to be bent forwards under the matching action of the limiting piece 3; the box body 1 is provided with a turnover connecting piece 7, the second driving assembly is connected with each turnover connecting piece 7 on the box body 1 in a driving mode, and the box body 1 is driven to rotate.
In the embodiment shown in the attached drawings, a plurality of box bodies 1 are horizontally arranged and are arranged orderly from top to bottom, two ends of each box body are respectively connected with a frame 2 in a rotating manner, the whole row of box bodies 1 are driven by a first driving assembly simultaneously, a pressing tongue 6 in each box body 1 can extend forwards, and a through hole 5 is communicated with an installation position, so that a reflecting sheet 4 in each box body 1 can be jacked forwards, and meanwhile, the reflecting sheet 4 can be bent and deformed after being jacked by a limiting part 3, and the jacking distance of the pressing tongue 6 is controlled by controlling the first driving assembly to adjust the horizontal curvature of the reflecting sheet 4.
Because box body 1 both ends all rotate with frame 2 and are connected, so through the cooperation of second drive assembly with upset connecting piece 7, can drive box body 1 simultaneously and carry out the axis upset along the horizontal direction, and then make the corresponding upset of reflector plate 4, longitudinal curvature can obtain adjusting.
Through the cooperation regulation of first drive assembly and second drive assembly, can make the reflector plate 4 in a plurality of box bodys 1 finally form a shape structure like the concave surface, and then can realize the focusing effect of neutron beam.
It can be understood that the embodiments of the monochromator with adjustable focusing radius provided by the present invention are arranged in the following manner in the attached drawings, that is: the box bodies 1 are horizontally arranged along the length direction, and the plurality of box bodies 1 are arranged in a vertical arrangement mode along the longitudinal direction, in this mode, the horizontal curvature is adjusted by the first driving assembly, and the longitudinal curvature is adjusted by the second driving assembly; the object of the invention can also be achieved if the box bodies 1 are not arranged in the manner of the present embodiment, such as the box bodies 1 are arranged vertically and transversely along the length direction, and the invention also belongs to the protection scope of the invention. Therefore, for the purposes of promoting an understanding and an explanation of the subject matter, the embodiments of the present invention are illustrated in the drawings.
Preferably, in order to enable the adjustment precision of the horizontal curvature to be higher, the invention provides a preferable structure and an installation form of the pressure tongue 6, namely, one end of the pressure tongue 6, which is close to the middle part of the box body 1, is rotatably connected with the box body 1, a top block 8 is arranged on the front side of one end, which is far away from the middle part of the box body 1, and the top block 8 can be abutted against the reflector plate 4; the limiting piece 3 comprises two pressure heads 9, and the two pressure heads 9 are respectively arranged on two sides of the middle part of the box body 1; the two top blocks 8 are closer to two ends of the box body 1 in the length direction than the two pressing heads 9. Under this kind of structure, the spatula 6 is connected on box body 1 through rotating, and kicking block 8 is in box body 1 both sides, and pressure head 9 sets up the middle part, forms a lever structure, and is more laborsaving, simultaneously, can make 4 both ends of reflector plate buckle forward, and the middle part is backward uplifted, wholly forms an arc surface, and the camber is more accurate.
After the reflector plate 4 is installed at the installation position, there is usually a gap between the reflector plate and the pressing head 9 and the top block 8, in order to eliminate the gap and make the reflector plate in a pressing contact state before adjustment, it is preferable that the top block 8 is movably connected to the pressing tongue 6, and an adjusting screw 10 is arranged at the back side of the pressing tongue 6, the extending distance of the top block 8 can be adjusted by screwing the adjusting screw 10, so that the gap between the reflector plate 4 and the pressing head 9 and the top block 8 can be eliminated, and the accuracy during adjustment can be ensured.
Specifically, in the embodiment of the monochromator provided by the present invention, the frame 2 includes a top plate 28, a bottom plate 29 and side plates 24 on two sides, and the back side of the pressing tongue 6 is provided with the pressure-bearing member 11; first drive assembly includes two and installs in rotation axis 12 on the frame 2, and this rotation axis 12 is vertically installed between roof 28 and bottom plate 29, is located the dorsal part of box body 1, and this rotation axis 12 is eccentric structure, and its cylinder and bearing part 11 butt because box body 1 still need overturn, therefore bearing part 11 can set up to the protruding column structure of cambered surface, forms line contact with the cylinder of rotation axis 12 at least, can avoid producing additional moment when following the horizontal axis because of box body 1 and rotate like this, influences the upset.
The first driving assembly further comprises a first driving motor 16 installed on the top plate 28, and the first driving motor 16 is provided with two power output ends and is in synchronous transmission connection with the two rotating shafts 12. Therefore, the pressing tongues 6 at the two ends can be synchronously jacked, the adjusting precision is improved, meanwhile, the automatic control is convenient, and the cost can be saved due to the reduction of motors.
In the adjustment of the longitudinal curvature, in order to realize accurate adjustment, a contact 17 is arranged on the turnover connecting piece 7 on each box body 1 and is arranged at the back side of the box body 1; the second driving assembly comprises a spiral rotating shaft 18 which is vertically arranged between a top plate 28 and a bottom plate 29, wherein a forward and reverse threaded groove 19 is formed in the spiral rotating shaft 18, a forward and reverse bidirectional threaded groove 19 is preferably formed from the middle position to the two ends, the width of the threaded groove 19 is matched with the contact 17, the thread pitch of the threaded groove 19 is matched with the distance between two adjacent contacts 17, the contact 17 of each box body 1 is sequentially embedded into the threaded groove 19, and in order to avoid blocking, the contact 17 is preferably of a spherical structure. The second driving assembly further comprises a second driving motor 23 mounted on the frame 2, the second driving motor 23 is in transmission connection with the spiral rotating shaft 18, in this embodiment, the second driving motor 23 is mounted on the lower portion of the bottom plate 29 and is in transmission connection with the lower end of the spiral rotating shaft. When the second driving motor 23 is operated, the spiral rotating shaft 18 can be driven to rotate, and the turning directions of the threads are forward and backward, so that the turning directions of the box body 1 at the upper half part and the box body 1 at the lower half part are just opposite, and the integral box body 1 can obtain the expected longitudinal curvature radius in the longitudinal direction.
In order to realize accurate adjustment of the longitudinal curvature radius, the lead angle of the threads needs to be geometrically calculated in advance, so that the box body 1 positioned on the upper half part and the box body 1 positioned on the lower half part can be integrally combined into circular arc arrangement as far as possible when being turned over.
Because box body 1 both ends need to be connected with curb plate 24 rotation, in order to facilitate the installation, the inboard of two curb plates 24 can be equipped with spout 25, and the both sides of box body 1 respectively are equipped with a slider 26, slider 26 with box body 1 normal running fit is connected, simultaneously with spout 25 cooperation is connected. The slide block 26 is provided with a matching hole, and two sides of the box body 1 are provided with box rotating shafts 27 for rotating connection. During installation, one end of each of the two side plates 24 can be fixed on the bottom plate 29, and each box body 1 is connected with the two sliding blocks 26 through the box rotating shafts 27 on the two sides and then inserted into the sliding grooves 25 of the side plates 24 one by one. If the mounting structure form of the sliding groove 25 and the sliding block 26 is not used, and the holes connected with the box rotating shafts 27 are directly formed in the two side plates 24, all the box bodies 1 need to be mounted on one side plate 24 firstly during mounting, and then the other side plate 24 is aligned with the box rotating shafts 27 on the other side of all the box bodies 1 together, so that the mounting is troublesome, the hole positions are difficult to align, and the sliding grooves 25 and the sliding block 26 can be inserted one by one after the structure is used, so that the mounting is simple, convenient and quick.
Preferably, after all the reflection sheets 4 are mounted in place, before the curvature in two directions is adjusted, in order to determine the initial position, a first reset hole 13 may be formed in the end surface of one end of the rotation shaft 12 at a position other than the line of the rotation shaft 12, in this embodiment, a shaft end is formed at the bottom end of the rotation shaft 12, at the same time, a first insertion hole 14 adapted to the first reset hole 13 is formed at a corresponding position on the bottom plate 29, and the rotation shaft 12 may be determined to be in the initial position by inserting a first pin 15 adapted to the first reset hole 13 and the first insertion hole 14. The position of the shaft end opening hole is preset in a pre-calculation mode so as to ensure that the pin shaft can be determined to be at the current adjusted initial position after being inserted.
Similarly, in order to determine the initial position of the longitudinal curvature adjustment, a second reset hole 20 is formed in the end surface of the shaft end of the spiral rotating shaft 18 at the position of the non-rotating shaft 12 line, in this embodiment, the end surface is formed in the upper end of the spiral rotating shaft 18, a second insertion hole 21 matched with the second reset hole 20 is formed in the corresponding position of the top plate 28, and the spiral rotating shaft 18 can be determined to be in the initial position by inserting a second pin 22 matched with the second reset hole 20 and the second insertion hole 21, so that the current box body 1 can be determined to be in the initial position of adjustment (no-turning state).
In summary, in the monochromator capable of adjusting the focusing radius provided by the present invention, each box 1 is internally installed with a reflection sheet 4 (silicon wafer), two sides of the reflection surface are provided with 2 pressure heads 9, the far end of each pressure head 9 is provided with two top blocks 8 for tightly supporting the silicon wafer, and the reflection surface of the silicon wafer forms a horizontal curvature radius. The basic principle is shown in fig. 9. The size of the horizontal radius of curvature is determined by the displacement of the top block 8. The displacement of the top block 8 arranged on the pressure tongue 6 in the silicon wafer box is driven by the eccentric displacement generated by the rotation of the rotating shaft 12 with an eccentric structure, so that the realization of the horizontal curvature radius of the silicon wafer is realized in the silicon wafer box.
Two box rotating shafts 27 are arranged at two ends of the silicon chip box and can rotate in the frame 2, and the silicon chips in the silicon chip box also rotate along with the box body 1. The angle of rotation is determined by the longitudinal radius of curvature. The rotation angles of the box bodies 1 under the same curvature radius are different, the rotation angle of the box body 1 on the beam core is zero, and the rotation angles of the box bodies 1 are gradually increased from the center to the outside in sequence, so that the normal line at the center of the reflecting surface of each silicon chip can pass through the required focusing curvature radius. The rotation angle of each cartridge 1 is controlled by a screw shaft 18. The spiral rotating shaft 18 is provided with spiral grooves with the number not less than that of the box bodies 1, and the lift range of each spiral groove is different during rotation so as to adapt to the change requirement of the rotating angle of each box body 1 under the same curvature radius. The middle part of each box body 1 is provided with a circular tongue (contact 17) and inserted into the corresponding spiral groove, and the rotation angle of the silicon wafer box is changed along with the rotation of the spiral column so as to realize the set longitudinal curvature radius.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A monochromator capable of adjusting the focusing radius is characterized by comprising a box body for placing a reflector plate, a frame, a first driving assembly and a second driving assembly;
the box body is of a long strip-shaped structure, a limiting piece and an installation position for placing the reflector plate are arranged on the front side of the box body, and the reflector plate is placed on the installation position and then is pressed tightly through the limiting piece arranged on the front side of the box body;
the two ends of the box body are rotationally connected with the frame, and the rotation axis is parallel to the length direction of the box body;
two ends of the box body are respectively provided with a through hole along the width direction, a pressing tongue rotationally connected with the box body is arranged in the through hole, and the rotating axis of the pressing tongue is parallel to the width direction of the box body;
the number of the box bodies is multiple, and the box bodies are sequentially arranged along the width direction of the box bodies;
the first driving assembly is simultaneously in driving connection with the pressure tongues on each box body, can drive the pressure tongues to rotate, and enables the reflector plates to be bent forwards under the matching action of the limiting pieces;
the box body is provided with a turnover connecting piece, the second driving assembly is connected with each turnover connecting piece on the box body in a driving mode, and the box body is driven to rotate.
2. The monochromator capable of adjusting the focusing radius according to claim 1, wherein one end of the pressure tongue close to the middle part of the box body is rotatably connected with the box body, and the front side of one end far away from the middle part of the box body is provided with a top block which can be abutted with the reflector plate;
the limiting piece comprises two pressure heads which are respectively arranged at two sides of the middle part of the box body;
the two ejector blocks are closer to two ends of the box body in the length direction than the two pressing heads.
3. The monochromator of claim 2, wherein said top block is movably connected to said spatula, and an adjusting screw is provided on the back side of said spatula, and the protrusion distance of said top block can be adjusted by screwing said adjusting screw.
4. The monochromator of claim 1, wherein the back side of the spatula is provided with a bearing part in a convex arc structure;
the first driving assembly comprises two rotating shafts arranged on the frame, the rotating shafts are of eccentric structures, and cylindrical surfaces of the rotating shafts are abutted to the pressure bearing pieces.
5. The monochromator of claim 4, wherein both ends of the rotation shaft are rotatably connected to the frame, respectively, wherein a first reset hole is formed at a position other than the rotation axis on an end surface of one end of the rotation shaft, a first insertion hole adapted to the first reset hole is formed at a corresponding position on the frame, and the rotation shaft is determined to be in an initial position by inserting a first pin adapted to the first reset hole and the first insertion hole.
6. The monochromator of claim 4, wherein the first drive assembly further comprises a first drive motor mounted on the frame, the first drive motor having two power outputs for synchronous drive connection with the two rotating shafts.
7. The adjustable focal radius monochromator of claim 1, wherein said flip connector comprises a contact on the backside of said cassette;
the second driving assembly comprises a spiral rotating shaft, wherein forward and reverse threaded grooves are formed in the spiral rotating shaft, and each contact of the box body is sequentially embedded into the threaded groove.
8. An adjustable focus radius monochromator according to claim 7,
the both ends of spiral pivot respectively with the frame rotates to be connected, and the second hole that resets is seted up to non-axis of rotation position on the terminal surface of one of them end, corresponding position is equipped with on the frame with the second patchhole of second hole looks adaptation resets, through insert with the second hole that resets reaches the second round pin axle of second patchhole looks adaptation, can confirm the spiral pivot is in initial position.
9. The adjustable focal radius monochromator of claim 7, wherein said second drive assembly further comprises a second drive motor mounted to said frame, said second drive motor being in driving connection with said helical shaft.
10. The monochromator of any one of claims 1 to 9, wherein the frame comprises two side plates, and the two side plates are respectively arranged at two sides of the box body in the length direction;
the inner sides of the two side plates are provided with sliding chutes;
the two sides of the box body are respectively provided with a sliding block, and the sliding blocks are connected with the box body in a rotating fit mode and are connected with the sliding grooves in a matching mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684224.4A CN111812133B (en) | 2020-07-16 | 2020-07-16 | Monochromator capable of adjusting focusing radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684224.4A CN111812133B (en) | 2020-07-16 | 2020-07-16 | Monochromator capable of adjusting focusing radius |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111812133A true CN111812133A (en) | 2020-10-23 |
| CN111812133B CN111812133B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010684224.4A Active CN111812133B (en) | 2020-07-16 | 2020-07-16 | Monochromator capable of adjusting focusing radius |
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| EP0584353A1 (en) * | 1992-03-12 | 1994-03-02 | Commissariat Energie Atomique | Deformable mirror and corresponding laser equipment. |
| WO2004021365A2 (en) * | 2002-08-25 | 2004-03-11 | Hahn-Meitner-Institut Berlin Gmbh | Neutron optical element for the small angle neutron scattering measuring technique |
| CN102221516A (en) * | 2011-03-17 | 2011-10-19 | 中国科学院化学研究所 | Adjusting device for monochromator of neutron reflecting spectrometer and method for adjusting monochromator by using same |
| CN102253405A (en) * | 2011-06-28 | 2011-11-23 | 中国原子能科学研究院 | Multi-axis neutron monochromator attitude adjusting device |
| CN103309012A (en) * | 2013-06-27 | 2013-09-18 | 毛建华 | Variable-focus Fresnel lens focuser |
| CN108152852A (en) * | 2017-12-12 | 2018-06-12 | 中国计量科学研究院 | A kind of adjustable monocrystalline monochromator |
| CN109211950A (en) * | 2018-10-30 | 2019-01-15 | 中国工程物理研究院核物理与化学研究所 | A kind of monochrome neutron focusing device |
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| EP0584353A1 (en) * | 1992-03-12 | 1994-03-02 | Commissariat Energie Atomique | Deformable mirror and corresponding laser equipment. |
| WO2004021365A2 (en) * | 2002-08-25 | 2004-03-11 | Hahn-Meitner-Institut Berlin Gmbh | Neutron optical element for the small angle neutron scattering measuring technique |
| CN102221516A (en) * | 2011-03-17 | 2011-10-19 | 中国科学院化学研究所 | Adjusting device for monochromator of neutron reflecting spectrometer and method for adjusting monochromator by using same |
| CN102253405A (en) * | 2011-06-28 | 2011-11-23 | 中国原子能科学研究院 | Multi-axis neutron monochromator attitude adjusting device |
| CN103309012A (en) * | 2013-06-27 | 2013-09-18 | 毛建华 | Variable-focus Fresnel lens focuser |
| CN108152852A (en) * | 2017-12-12 | 2018-06-12 | 中国计量科学研究院 | A kind of adjustable monocrystalline monochromator |
| CN109211950A (en) * | 2018-10-30 | 2019-01-15 | 中国工程物理研究院核物理与化学研究所 | A kind of monochrome neutron focusing device |
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| CN111812133B (en) | 2023-02-28 |
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